CN1800519A - Blade machine bucket height automatic adjusting method and device thereof - Google Patents

Blade machine bucket height automatic adjusting method and device thereof Download PDF

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Publication number
CN1800519A
CN1800519A CN 200410044199 CN200410044199A CN1800519A CN 1800519 A CN1800519 A CN 1800519A CN 200410044199 CN200410044199 CN 200410044199 CN 200410044199 A CN200410044199 A CN 200410044199A CN 1800519 A CN1800519 A CN 1800519A
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China
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laser
laser pick
blade machine
control unit
scraper bowl
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CN 200410044199
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CN100357528C (en
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刘景才
刘玉涛
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Individual
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Abstract

The invention relates to a method for automatically adjusting the bucket height of road scraper and relative device. It can solve the defects of present road scraper which can only control the bucket via hand. It is characterized in that: a laser receiving control tracker (2) is mounted on the bucket of road scraper; a horizontal laser emitter (1) is mounted at the front of road scraper; and before the operation, adjusting the laser of horizontal laser emitter (1) to be parallel with operated rod and irradiate the photodiode sensor in the middle of laser receiving control tracker (2); in the operation, if the baffle on the ground lifts the front wheel of road scraper, the laser emitted from laser emitter (1) will de-center the photodiode sensor in the middle part, therefore, the laser receiving control tracker (2) will output the signal to lift or reduce the drop the bucket. The invention can completely remove the road baffle with high working efficiency.

Description

The automatic adjusting method of blade machine bucket height and the device that is used for the method
Technical field:
The present invention relates to a kind of device that the road pavement building construction can be adjusted the method for blade machine bucket height automatically and be specifically designed to enforcement the method that is used for.
Background technology:
In the road pavement building construction, blade machine is a kind of important level road machinery, removes because it can turn down the back with scraper bowl with the obstruction on the road surface.Do not have to control automatically the device of bucket height on traditional blade machine, it can only be manually to be adjusted according to the judgement that draws after oneself range estimation by the operator of blade machine, is difficult to the obstruction on the clean removing work road surface like this, has influenced operating efficiency.
Summary of the invention:
In order to overcome the deficiency that can only adopt manual control on the existing blade machine to the lifting control of scraper bowl, the invention provides a kind of device that the road pavement building construction can be adjusted the method for blade machine bucket height automatically and be specifically designed to enforcement the method that is used for, have the advantages that thoroughly to remove road barrier thing, high efficiency behind application this method and the device.
Technical scheme of the present invention is: the automatic adjusting method of this blade machine bucket height wherein mainly comprises the steps:
At first, place the generating laser that can send the rotary laser line in the place ahead of blade machine; Then, on the scraper bowl of blade machine, place a laser pick-off tracking control unit, this laser pick-off tracking control unit has one by three visible light reception diodes in upper, middle and lower of vertical distribution laser pick-off end that constitutes and the control signal output that is connected with blade machine scraper bowl control loop, when laser rays shines upper, middle and lower three diverse locations on the laser pick-off end, the control signal output of this laser pick-off tracking control unit is exported different control signals respectively, thereby makes scraper bowl rise, be failure to actuate or descend; After this, before blade machine is not worked, adjust the height of generating laser and the elevation angle of laser beam, visible light reception diode in the middle of being positioned on laser rays that generating laser sends and the laser pick-off end is on same the straight line and parallel with the road surface of designing and constructing; After above-mentioned steps is finished, start blade machine, when the crawler belt of blade machine presses obstruction, the vertical height of scraper bowl increases on the blade machine, laser rays will shine following visible light reception diode, thereby by output output positive signal scraper bowl is descended, when laser rays recovered to shine middle diode, scraper bowl stopped to descend.
In addition, if the practice of construction road surface is that having of non-same level height is protruding, the road surface of concavity, then should increase following steps in the above methods:
Fix the height arm control that to adjust laser pick-off tracking control unit laser pick-off end height according to the pavement design absolute altitude automatically in the lower end of laser pick-off tracking control unit, then laser pick-off tracking control unit and this height arm control are fixed on the scraper bowl of blade machine jointly.Like this, the height of laser pick-off end can be adjusted automatically with protruding, the recessed degree on road surface.
Method above realizing is to realize by a kind of automatic device that is specifically designed to control blade machine bucket height, this device mainly is made up of generating laser, laser pick-off tracking control unit, described here generating laser comprises the rotatable laser body and the Laser emission control circuit that have A-frame, and the laser pick-off tracking control unit has a laser pick-off end and a control signal output and a control circuit board.Described laser pick-off end is made of the upper, middle, and lower part visible light reception diode of vertical distribution, and described control circuit board is made of top laser pick-off module, middle part laser pick-off module, bottom laser pick-off module, top time base module, middle part time base module, bottom time base module, computing amplifier comparator.Wherein, on described, in, the signal of telecommunication that produces after the three part visible light reception diode conductings is coupled respectively to top laser pick-off module through electric capacity down, middle part laser pick-off module, the electric signal input end of bottom laser pick-off module, the signal output part of above-mentioned three modules is respectively via resistance, diode is connected to the respective upper time base module, the middle part time base module, the trigger impulse input of bottom time base module, between the pulse input end and positive supply that resistance after three groups of parallel connections and electric capacity are connected to above-mentioned three time base modules respectively, the top time base module, the voltage output end of middle part time base module all is connected to the reverse input end of computing amplifier comparator through resistance, the voltage output end of bottom time base module is connected to the input in the same way of computing amplifier comparator through resistance, the output of computing amplifier comparator is as the control signal output of this circuit board, this control signal output is connected with the hydraulic control circuit of blade machine scraper bowl lifting, when its output positive signal, scraper bowl descending hydraulic control loop in the blade machine scraper bowl control loop is switched on, when its output negative signal, the scraper bowl rising hydraulic control circuit in the blade machine scraper bowl control loop is switched on.
In addition, for making this device not only can be useful on the straight road surface but also go on the scraggly road surface, can in described device, increase an automatic height arm control that is used to adjust laser pick-off end height on the laser pick-off tracking control unit, this automatic height arm control is mainly by RF transmitter, driving snake, reducer, the film turning cylinder, infrared reception tracking control unit, elevating motor, and the motor transmission that matches with motor, constitute with laser pick-off end in the laser pick-off tracking control unit drive screw that is connected that fixes, wherein the running part of mileometer is connected on an end of driving snake and the blade machine chassis, the other end is connected to the transmitting gear on the reducer, the film turning cylinder then is fixed on the reducer, rotates under the drive of its transmitting gear in reducer.
RF transmitter and infrared receiver are fixed on two ends, the formed plane of film turning cylinder respectively, infrared receiver is made of upper, middle, and lower part infrared receiver diode and corresponding electric control loop, circuit in its electric control loop and the laser pick-off tracking control unit in the control circuit board is identical, the positive and negative control signal of its output control respectively motor clockwise, rotate counterclockwise, rotate thereby drive screw rod, make the receiving terminal of laser pick-off tracking control unit rise or descend by motor transmission.
The present invention has following beneficial effect: owing to method and the device taked in the such scheme, can be so that the blade machine tool be adjusted the height of scraper bowl automatically according to the situation of obstruction on pavement design absolute altitude and the road surface in the process of level road, overcome like this and must rely on the drawback of carrying out manual setting after operator's range estimation in the prior art, improve operating efficiency, guaranteed construction quality.
Description of drawings:
Accompanying drawing 1 is the work schematic diagram after the present invention is applied on the blade machine;
Accompanying drawing 2 is schematic top plan view of generating laser among the present invention;
Accompanying drawing 3 is formation schematic diagrames of rotary laser trigger mechanism in the generating laser of the present invention;
Accompanying drawing 4 is composition schematic diagrames of automatic height arm control among the present invention;
Accompanying drawing 5 is the circuit theory diagrams that are used for the control circuit board on the laser pick-off tracking control unit among the present invention;
Accompanying drawing 6 is hydraulic control part schematic diagrams of blade machine;
Accompanying drawing 7 is floor map of adhesive tape.
1-generating laser among the figure, 2-laser pick-off tracking control unit, the automatic height arm control of 3-, 4-mu balanced circuit plate, 5-shell, 6-rechargeable battery, 7-wireless remote control receiving key circuit board, 8-rotary laser trigger mechanism, 9-drives the motor of Laser emission assembly rotation, the 10-driving belt, 11-rotating disk belt pulley, 13-framework, 14-Laser emission assembly, 15-guiding mechanism, 16-rectangle fixed body, the last copper coin of 17-, copper coin under the 18-, the little axle of 19-, the 21-traveller, 23-RF transmitter, 24-driving snake, the 25-reducer, the infrared reception tracking control unit of 26-, 27-housing, the 28-screw rod, 29-motor transmission, 30-elevating motor, the 31-turning cylinder, the 32-film.
The specific embodiment:
The invention will be further described below in conjunction with accompanying drawing:
The present invention mainly is the improvement of having done at the defective that existing blade machine exists in work progress.The construction road surface is scraggly often, the height of scraper bowl on the blade machine in the level road process need constantly be adjusted, it is clean in the hope of the obstruction on the road surface is removed, but because exist the error of artificial observation, make that the effect of level road is always not very good, often need to repeat construction, cause inefficiency, construction quality is not high.
Proposed following method in the present invention and solved this problem, concrete steps are:
(1) places the generating laser that can send the rotary laser line in the place ahead of blade machine.Selecting generating laser here for use, is because the intensity height and the good directionality of laser are difficult for scattering; Requiring laser can rotate emission, is to want to make that laser can form the plane of a laser scanning, so just do not require laser emitting source must with the laser pick-off source point-blank, as long as in rotation emitted laser radiation scope, just can.Certain this rotation rotates to be the best with 360 degree, but also can select a kind of generating laser of swinging emission laser for use, just difference to some extent on effect.
(2) on the scraper bowl of blade machine, place a laser pick-off tracking control unit, this laser pick-off tracking control unit has one by three visible light reception diodes in upper, middle and lower of vertical distribution laser pick-off end that constitutes and the control signal output that is connected with blade machine scraper bowl hydraulic control circuit, when laser rays shines upper, middle and lower three diverse locations on the laser pick-off end, the control signal output of this laser pick-off tracking control unit is exported different control signals respectively, thereby makes scraper bowl rise, be failure to actuate or descend.
(3) before not working, blade machine adjusts the height of generating laser and the elevation angle of laser beam, visible light reception diode in the middle of being positioned on laser rays that generating laser sends and the laser pick-off end is on same the straight line, and is parallel to the each point design elevation of construction section.
(4) start blade machine, when the roller of blade machine presses obstruction, the vertical height of scraper bowl increases on the blade machine, laser rays will shine following visible light reception diode, thereby scraper bowl is descended by output output positive signal, when laser rays recovered to shine middle diode, scraper bowl stopped to descend.
Above method when being straight road surface on the road surface that is applied to construct effect fine, but when on the road surface that is applied to radian, during as slope, just very difficult, because when blade machine travels on the road surface that protruding or concavity are arranged, the laser that generating laser sent just is difficult to become the standard of weighing levelness again.Therefore, more perfect for making this method, need the middle following steps that add of the step of described method (2) in the above:
Fix the height arm control that to adjust laser pick-off tracking control unit laser pick-off end height according to the pavement design absolute altitude automatically in the lower end of laser pick-off tracking control unit, then laser pick-off tracking control unit and this height arm control are fixed on the scraper bowl of blade machine jointly.Thus, make the height of laser pick-off tracking control unit laser pick-off end to change with the convex-concave degree on designed road surface, when making blade machine on the non-straight road surface, the laser rays that is sent by generating laser also can keep impinging upon on the visible light diode at laser pick-off end middle part, and has guaranteed the effect that said method is used.
The realization of said method depends on a kind of special device, below just this special device is elaborated.
As shown in Figure 1, this device mainly is made up of generating laser 1, laser pick-off tracking control unit 2.
Fig. 2 is the schematic top plan view of generating laser 2, as can be seen from the figure, generating laser 2 mainly is made of rotatable laser body 8 and corresponding Laser emission control circuit, wherein mu balanced circuit plate 4 in the Laser emission control circuit and wireless remote control receiving key circuit board 7 provide the laser controlling power supply for Laser emission assembly 14 and for the motor that makes its rotation provides electrical source of power, its physical circuit constitutes conventional structure.Fig. 3 is the composition schematic diagram of rotary laser trigger mechanism 8, the motor 9 that wherein drives the rotation of Laser emission assembly drives rotating disk belt pulley 11 by driving belt 10 and rotates, thereby driving the framework 13 that is fixed on the rotating disk belt pulley 11 rotates, also just make the Laser emission assembly that is positioned at framework 13 in company with rotation, thereby realize the purpose of laser rotation emission.
Pass the outer wall of framework 13, a little axle 19 is housed, make that the rectangle fixed body 16 that is fixed with Laser emission assembly 14 can be that the low-angle rotation is done in the axle center with little axle 19, its purpose is just can depress or discharge traveller 21 by the jackscrew on the rotating and regulating mechanism 15, thereby adjusts the elevation angle of Laser emission assembly 14 emission laser.Because of framework 13 and rectangle slide block 16 are nylon material, non-conductive, so fix copper coin 17 on, copper coin 18 down respectively at the two ends up and down of rectangle fixed body 16 outsides, they communicate with the both positive and negative polarity of its inner Laser emission assembly 14 respectively.The end of following copper coin 18 by framework 13, is communicated with spring with following axle, settles the purpose of spring to be here: support rectangle fixed body 16 and make it to produce a power that makes progress to guarantee that lower shaft and following copper coin 18 are down to the pathway for electrical signals that arrives Laser emission assembly 14.A traveller that can slide up and down 21 is housed between guiding mechanism 15 and the last copper coin 17, its role is to: guarantee the level and smooth stable adjustment of guiding mechanism 15, be communicated with between guiding mechanism 15 and the last copper coin 17 so that arrive another pathway for electrical signals of Laser emission assembly.Adjustment by guiding mechanism 15, can make the rectangle fixed body 16 in the framework 13 is that the low-angle rotation is done in the axle center with little axle 19, the rotation sweep laser level that Laser emission assembly in it is sent penetrates, this structure can be made adjustment in 14 rotations of Laser emission assembly, can make the laser level Du Genggao that is sent.
Under the control of wireless remote control receiving key circuit 7, controlling circuit of voltage regulation 4 and the motor 9 that drives the rotation of Laser emission assembly simultaneously electric work, make generating laser 1 begin to send laser, the voltage stabilizing control signal is through guiding mechanism 15, traveller 21, last copper coin 17 arrives Laser emission assembly 14, again through following copper coin 18, spring, lower shaft is got back to the ground end of this circuit, the motor 9 that drives the rotation of Laser emission assembly simultaneously drives rotating disk belt pulley 11 with certain speed rotation by belt 10, and so just having produced one is the scanning laser line that horizontally rotates at center with the laser emitting region.
Laser pick-off tracking control unit 2 mainly is made of a laser pick-off end and a control signal output and a control circuit board.Described laser pick-off end is made of the upper, middle, and lower part visible light reception diode of vertical distribution, in this example, as shown in Figure 5, the visible light reception diode that belongs to top is meant photodiode VD1~VD5, the visible light reception diode of part is meant photodiode VD6 in belonging to, the visible light reception diode that belongs to the lower part is meant photodiode VD7~VD10, and the model of these diodes can be the 2DU2 type.In fact, the diode of selecting so many quantity is in order to make effect best, if do not consider effect, then only selects three independent diodes to get final product.Described control circuit board is made of top laser pick-off module I C1, middle part laser pick-off module I C2, bottom laser pick-off module I C3, top time base module IC4, middle part time base module C5, bottom time base module IC6, computing amplifier comparator IC7 as shown in Figure 5; In this example, top laser pick-off module I C1, middle part laser pick-off module I C2, bottom laser pick-off module I C3 can select the module of same type, as the infrared integrated circuit of CX20106A type, top time base module IC4, middle part time base module C5, bottom time base module IC6 also can select the module of same type, as NE555 type integrated circuit, computing amplifier comparator IC7 can select LA6510 type integrated circuit.As shown in Figure 5, the concrete structure of top circuit is last, in, the signal of telecommunication that produces after the three part visible light reception diode conductings is coupled respectively to top laser pick-off module I C1 through electric capacity down, middle part laser pick-off module I C2, the electric signal input end of bottom laser pick-off module I C3, the signal output part of above-mentioned three modules is respectively via resistance, diode is connected to respective upper time base module IC4, middle part time base module IC5, the pulse input end of bottom time base module IC6, between the pulse input end and positive supply that resistance after three groups of parallel connections and electric capacity are connected to above-mentioned three time base modules respectively, top time base module IC4, the voltage output end of middle part time base module IC5 all is connected to the reverse input end of computing amplifier comparator IC7 through resistance, the voltage output end of bottom time base module IC6 is connected to the input in the same way of computing amplifier comparator IC7 through resistance, the output of computing amplifier comparator IC7 is as the control signal output of this circuit board, this control signal output is connected with blade machine scraper bowl hydraulic control circuit, when its output positive signal, scraper bowl descending hydraulic control loop in the blade machine scraper bowl hydraulic control circuit is switched on, when its output negative signal, the scraper bowl decline control circuit in the blade machine scraper bowl hydraulic control circuit is switched on.For increasing the intensity of output control signal, can increase by two triodes at output and constitute amplifying stage, with at this moment two output terminals A, B as output to hydraulic control circuit output control signal, shown in the hydraulic control part schematic diagram of Fig. 6 blade machine, signal difference according to the output of A, B end, control different electromagnetic valves respectively, make different hydraulic control circuit conductings.The concrete course of work is, the scanning laser line that horizontally rotates that is sent when generating laser 1 shines among visible light reception diode VD1~VD5 one or all the time, because photodiode can produced a momentary pulse signal by light-struck moment in reverse-conducting, thereby make 1 pin of top laser pick-off module I C1 that the momentary pulse input just be arranged, amplify through preposition amplification in the IC1 and amplitude limit, bandpass filtering, detection relatively, integration, Schmidt relatively waits, by the output of 7 pin on it negative signal, 555 time base circuits that this negative pulse is exported to top time base module IC4 formation reach by peripheral cell capacitor C 5 at last, the single stabilization delay circuit that resistance R 5 is formed.Here capacitor C 5 selects to discharge and recharge the electric capacity that coefficient differs greatly, since capacitor C 5 discharge and recharge that coefficient differs greatly, the charging interval is short, discharge time is long, so when first negative pulse of 7 pin has not also been put electricity by resistance R 5 on capacitor C 5, the 2nd negative pulse come, so negative just down voltage drops to or is lower than 1/3 o'clock of supply voltage on the capacitor C 5,3 pin of top time base module IC4 become high potential.Before this, top time base module IC4 exports high potential, the b point is a zero potential, computing amplifier comparator IC7 is output as negative signal, because the output of computing amplifier comparator IC7 has been connected to the rise and fall control end of blade machine scraper bowl, when the output of computing amplifier comparator IC7 is output as when negative, the blade machine scraper bowl rises, driving laser pick-off tracking control unit 2 also rises, when rising to scan laser according to less than among photodiode VD1~VD5 any, but can shine diode VD6 or shine among diode VD7~VD10 one or all the time simultaneously, middle part time base module IC5 bottom time base module IC6 exports high potential, top time base module IC4 is output as zero, at this moment by resistance and potentiometer W1, the dividing potential drop effect of W2, the a point, b point current potential is identical, and the output of computing amplifier comparator IC7 is output as zero, and the blade machine scraper bowl is failure to actuate.When blade machine is exercised slightly high ground, the relative laser pick-off tracking control unit 2 of laser rays moves down, when the top edge of light has broken away from photodiode VD6, when only having shone part or all of among photodiode VD7~VD10, top time base module IC4, middle part time base module IC5 output all is zero, bottom time base module IC6 then exports high potential, at this moment a point current potential is zero, the b point is a high potential, then computing amplifier comparator IC7 just is output as, this positive signal descends the blade machine scraper bowl, when dropping to the rotation sweep laser rays and shone photodiode VD6 again, top time base module IC4 is input as zero, middle part time base module IC5, bottom time base module IC6 exports high potential, a, 2 current potentials of b are identical and be positive potential, computing amplifier comparator IC7 is output as zero, the blade machine scraper bowl stops lifting, and according to top program, laser pick-off tracking control unit 2 is finished the construction on straight road surface with regard to the top edge that drives level road lifting gear tracking rotation sweep laser rays.So-called tracking is meant the vertical direction on Laser Tracking controller 2 formed plane when rotation sweep generating laser 1 horizontally rotates scanning as large tracts of land, the tracking of above-below direction just.
More than be construction to straight road surface, if but when wanting to finish to raised or sunken design pavement construction, so just need in described device, increase an automatic height arm control 3 of infrared electro formula, below this device that increases is elaborated.
As shown in Figure 4, this automatic height arm control 3 is mainly by RF transmitter 23, reducer 25, driving snake 24, film turning cylinder 31, infrared reception tracking control unit 26, elevating motor 30 and the motor transmission 29 that matches with elevating motor 30, constitute with the laser pick-off end drive screw 28 that is connected that fixes in the laser pick-off tracking control unit.
Wherein the power transmission shaft of mileometer is connected on an end of driving snake 24 and the blade machine chassis, and the other end is connected to reducer 25, and film turning cylinder 31 is fixed on the reducer 25, rotates under the drive of its transmitting gear in reducer 25.Can select the ratio of travelling gear in this example, make that the ratio of velocity of rotation and the velocity of rotation of driving snake 24 of film turning cylinder 31 is 1: 100, also be wrapped in when rotating on the film turning cylinder 31 when film 32 with regard to making, the translational speed of film is 1: 100 with the ratio of the actual translational speed of blade machine.
Infrared reception tracking control unit 26 is similar to the structure of Laser Tracking controller 2, constitute by upper, middle, and lower part infrared receiver diode and corresponding electric control loop, circuit in its electric control loop and the laser pick-off tracking control unit 2 in the control circuit board is identical, the positive and negative control signal of its output control respectively elevating motor 30 clockwise, rotate counterclockwise.
Elevating motor 30 drives screw rod 28 by motor transmission 29 and moves up and down, because screw rod 28 be with the laser pick-off tracking control unit in the laser pick-off end be fixed together, so the rising of screw rod 28 or following general who has surrendered make the vertical height of a series of photodiodes in the space in the laser pick-off end change, and this variation is to carry out according to the design elevation on road surface, and specific explanations is as follows:
The film 32 that is wrapped on the film turning cylinder 31 obtains by a kind of special method, at first to the specific design absolute altitude be reflected to scale on the film according to the width of the ratio of film turning cylinder 31 and blade machine travel speed and selected film and the ratio of screw rod adjustment height are definite, produce the film on one section pending road surface then according to design elevation, the part that design elevation point is above covers with light screening material.Be a concrete explanation of making film below:
When the ratio of the travel speed of the transmission speed of film and blade machine is 1: 100, the width of light belt is 1: 10 o'clock with the ratio of the adjustment height of automatic height arm control 3, draw long 1/100 of this highway section physical length that is according to the each point absolute altitude in this given highway section of design drawing earlier, the wide figure that dwindles for this highway section actual elevation numerical value 1/10, as shown in Figure 7, C, D, E, F, G is 5 absolute altitudes at 50 meters at interval, connect CD respectively with straight dotted line, DE, EF, FG, doing the perpendicular bisector of these four straight dotted lines then, is the radius CDE that draws with two intersection point before and after in these four perpendicular bisectors again, two continuous curve C DEFG of EFG.
In actual applications, automatic height arm control 3 is fixed on the scraper bowl of blade machine, the below of laser pick-off tracking control unit 2, fix doing the laser pick-off end that slides up and down in screw rod on it 28 and the laser pick-off tracking control unit 2, at this moment, the driving snake 24 that links to each other with the running part of the mileometer of blade machine drives film turning cylinders 31 by coupled reducer 25, thereby make the film of making according to the absolute altitude of highway section actual conditions 32, pass through infrared transmitter 23 with 10 meters every kilometer speed, the altitude signal that departs from laser scanning line of record is corresponding one by one with the design elevation of this highway section each point on the film 32, by the emitted light of infrared transmitter because be subjected to blocking of shading light part on the film 32, will raise according to the design elevation of this highway section each point or reduce, thereby make the different tracking control signal control elevating motor 30 of infrared reception tracking control unit 26 outputs, elevating motor 30 is by motor transmission 29, screw rod 28 drives the laser pick-off end in the laser pick-off tracking control units 2, follows the tracks of the top edge of the infrared light that sees through at light belt all the time.Its circuit diagram is identical with Fig. 5, control principle is identical with the control principle of laser pick-off tracking control unit, just by three integrated infrared rays receiving integrate circuits replacement laser pick-off integrated circuit block CX2016A wherein, the infrared emission circuit is then identical with the common remote controller circuit.
When level road machinery is constructed to designed straight highway section, the rotation sweep laser rays that at first is parallel to design surface according to the design elevation setting, rotation sweep generating laser 1 is launched the laser rays greater than 180 degree scan angles during work, also can be designed to the generating laser of 360 degree rotations if desired, laser pick-off tracking control unit 2 can receive in the effective range of its scanning whenever and wherever possible follows the tracks of control, and the control construction is followed the tracks of in many receptions simultaneously, do not keeping off under the prerequisite of scanning ray mutually, so can convenient and swift the construction in the straight road surface of designed large tracts of land accurately.
When need be to designed each point absolute altitude when do not construct in point-blank highway section, draw long 1/100 of this road section length that is according to the design elevation of this highway section each point in advance, wide is horizontal absolute altitude 1/15 curve map in this highway section, CDEFG section curve as shown in Figure 7, the straight dotted line that connects CEG is the center line of light belt, again according to the required width of light belt produce on the material of printing opacity with the same curve of CDEFG section on the film 32 of light tight, following printing opacity.
During construction, the rotation sweep laser rays is arranged on the top of the corresponding actual grade elevation point of CEG point, straight line parallel with 3, laser pick-off tracking control unit 2 will be from this light of motion tracking, because the height of the transparent surface each point of being drawn on the film is corresponding with the height that the actual each point in this highway section departs from laser rays, when so machinery is constructed in the CDE highway section, automatically height arm control descends with respect to the laser pick-off tracking control unit, elongation just, the D point descends at most, and rise in the EFG section, the F point rises at most, that is to say that the laser pick-off tracking control unit remains on the fixing plane, rely on to increase or dwindle the construction requirement that distance between level road device and the laser pick-off tracker adapts to differing heights in this highway section.
In the method and device of above continuously and quickly measuring automatic control level degree, the laser scanning transmitter is to adopt the mode of laser module rotation to scan, also can adopt laser is projected on the tilting mirror, the tilting mirror rotation produces scanning ray, also can be designed to left-right swing type scanning, the laser pick-off tracking control unit is the mode that adopts two-sided reception, and Fig. 4 only demonstrates the front, the back side does not show, so that satisfy the needs of mechanical backward going construction.Can also be designed to multiaspect, just omnibearing laser pick-off tracking control unit, construction makes it to be more convenient for.
When road pavement was constructed, the rotation sweep generating laser 1 that is fixed on the tripod sent the fan-like pattern of horizontal scan angle greater than 180 degree, and through the laser of ovennodulation, the laser pick-off tracking control unit can not receive tracking in fan-like pattern scanning laser line zone.Because of the vertical height of this light is to determine according to the design elevation in this highway section, thereby fix, so the laser pick-off tracking control unit carries out tracking on the vertical direction to fan-shaped scanning ray, also just equal the level road device all the time according to laser scanning line height in construction.

Claims (4)

1, a kind of automatic adjusting method of blade machine bucket height is characterized in that comprising following steps:
(1) places one in the place ahead of blade machine and can send the generating laser (1) that horizontally rotates laser rays;
(2) on the scraper bowl of blade machine, place a laser pick-off tracking control unit (2), this laser pick-off tracking control unit has one by three visible light reception diodes in upper, middle and lower of vertical distribution laser pick-off end that constitutes and the control signal output (A that is connected with blade machine scraper bowl hydraulic control circuit, B), when laser rays shines upper, middle and lower three diverse locations on the laser pick-off end, control signal output (the A of this laser pick-off tracking control unit, B) export different control signals respectively, thereby make scraper bowl rise, be failure to actuate or descend;
(3) before blade machine is not worked, adjust the height of generating laser (1) and the elevation angle of laser beam, make the visible light reception diode that is positioned at the centre on laser rays that generating laser sends and the laser pick-off end be on same the straight line and be parallel to the work road surface;
(4) start blade machine, when the roller of blade machine presses obstruction, scraper bowl on the blade machine is lifted simultaneously, laser rays will shine following visible light reception diode, thereby scraper bowl is descended by output output positive signal, when laser rays recovered to shine middle diode, scraper bowl stopped to descend.
2,, it is characterized in that adding in the step (2) therein following steps according to the automatic adjusting method of the described blade machine bucket height of claim 1:
Fix one in the lower end of laser pick-off tracking control unit (2) and can adjust the height arm control that laser pick-off tracking control unit (2) is gone up laser pick-off end height automatically, then laser pick-off tracking control unit and this height arm control are fixed on the scraper bowl of blade machine jointly according to the pavement design absolute altitude.
3, a kind of automatic device that is used to control the blade machine bucket height, it is characterized in that: this device is by generating laser (1), laser pick-off tracking control unit (2) is formed, described generating laser comprises rotatable laser body (8) and Laser emission control circuit, laser pick-off tracking control unit (2) has a laser pick-off end and a control signal output and a control circuit board, described laser pick-off end is by on the vertical distribution, in, three part visible light reception diodes constitute down, and described control circuit board is by top laser pick-off module (IC1), middle part laser pick-off module (IC2), bottom laser pick-off module (IC3), top time base module (IC4), middle part time base module (IC5), bottom time base module (IC6), computing amplifier comparator (IC7) constitutes; On described, in, the signal of telecommunication that produces after the three part visible light reception diode conductings is coupled respectively to top laser pick-off module (IC1) through electric capacity down, middle part laser pick-off module (IC2), the electric signal input end of bottom laser pick-off module (IC3), the signal output part of above-mentioned three modules is respectively via resistance, diode is connected to respective upper time base module (IC4), middle part time base module (IC5), the pulse-triggered input of bottom time base module (IC6), between the pulse input end and positive supply that resistance after three groups of parallel connections and electric capacity are connected to above-mentioned three time base modules respectively, top time base module (IC4), the voltage output end of middle part time base module (IC5) all is connected to the reverse input end of computing amplifier comparator (IC7) through resistance, the voltage output end of bottom time base module (IC6) is connected to the input in the same way of computing amplifier comparator (IC7) through resistance, the output of computing amplifier comparator (IC7) is as the control signal output of this circuit board, this control signal output is connected with blade machine scraper bowl hydraulic control circuit, when its output positive signal, scraper bowl descending hydraulic control loop in the blade machine scraper bowl hydraulic control circuit is switched on, when its output negative signal, the scraper bowl decline control circuit in the blade machine scraper bowl hydraulic control circuit is switched on.
4, a kind of automatic device that is used to control the blade machine bucket height according to claim 3, it is characterized in that: described device also comprises an automatic height arm control (3) that is used to adjust laser pick-off end height on the laser pick-off tracking control unit, and described automatic height arm control (3) is mainly by RF transmitter (23), reducer (25), driving snake (24), film turning cylinder (31), infrared reception tracking control unit (26), elevating motor (30), and the motor transmission (29) that matches with elevating motor (30), constitute with laser pick-off end in the laser pick-off tracking control unit drive screw (28) that is connected that fixes;
Wherein the power transmission shaft of mileometer is connected on driving snake (24) one ends and the blade machine chassis, and the other end is connected to reducer (25), and film turning cylinder (31) is fixed on the reducer (25), rotates under the drive of its transmitting gear in reducer (25);
Infrared reception tracking control unit (26) is made of upper, middle, and lower part infrared receiver diode and corresponding electric control loop, circuit in its electric control loop and the laser pick-off tracking control unit (2) in the control circuit board is identical, the positive and negative control signal of its output control respectively elevating motor (30) clockwise, rotate counterclockwise.
CNB2004100441994A 2004-12-31 2004-12-31 Blade machine bucket height automatic adjusting method and device thereof Expired - Fee Related CN100357528C (en)

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CN110658512A (en) * 2019-11-08 2020-01-07 深圳职业技术学院 Laser range finder device capable of fully automatically accommodating and adjusting height of triangular support
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CN102691325A (en) * 2012-06-12 2012-09-26 中联重科股份有限公司 Grab bucket stop rope controller, control system and control method as well as continuous wall grab bucket
CN102870543A (en) * 2012-10-15 2013-01-16 江苏省丰垒果蔬特种机械研制有限公司 Compass-laser positioning multifunctional Chinese yam harvester
CN102870543B (en) * 2012-10-15 2016-01-20 江苏省丰垒果蔬特种机械研制有限公司 compass laser positioning multifunctional Chinese yam harvester
CN103938668A (en) * 2013-02-07 2014-07-23 常州华达科捷光电仪器有限公司 Slope cutting machine and control system thereof
US20140368638A1 (en) * 2013-06-18 2014-12-18 National Applied Research Laboratories Method of mobile image identification for flow velocity and apparatus thereof
CN106500603A (en) * 2016-10-27 2017-03-15 中国冶集团有限公司 A kind of slidingtype infrared ray absolute altitude control and measure device and measuring method
CN110658512A (en) * 2019-11-08 2020-01-07 深圳职业技术学院 Laser range finder device capable of fully automatically accommodating and adjusting height of triangular support
CN110658512B (en) * 2019-11-08 2022-11-18 深圳职业技术学院 Laser range finder device capable of fully automatically accommodating and adjusting height of triangular support
CN112083395A (en) * 2020-08-12 2020-12-15 陈泽雄 Laser radar scanning method, system, device and storage medium
CN115324136A (en) * 2022-10-17 2022-11-11 厦工(三明)重型机器有限公司 Bulldozer with flatness controlled by laser
CN115324136B (en) * 2022-10-17 2022-12-13 厦工(三明)重型机器有限公司 Bulldozer with flatness controlled by laser

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