CN101865779A - Flat-plate type tractor shaft weight brake detecting device with lever boosting mechanism - Google Patents
Flat-plate type tractor shaft weight brake detecting device with lever boosting mechanism Download PDFInfo
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- CN101865779A CN101865779A CN 201010198118 CN201010198118A CN101865779A CN 101865779 A CN101865779 A CN 101865779A CN 201010198118 CN201010198118 CN 201010198118 CN 201010198118 A CN201010198118 A CN 201010198118A CN 101865779 A CN101865779 A CN 101865779A
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- wheel locking
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Abstract
The invention belongs to tractor safety detecting equipment, in particular to a flat-plate type tractor shaft weight brake detecting device with a lever boosting mechanism. The detecting device sequentially comprises a left guide plate, a shaft weight detecting plate, a support plate, a brake detecting plate and a right guide plate from left to right, wherein a front wheel locking column is arranged between the shaft weight detecting plate and the support plate; a boosting lever is arranged between the support plate and the brake detecting plate, and the tail end of the boosting lever is provided with a braking force sensor; and the front wheel locking column and the boosting lever are respectively connected with an electric push rod. The direct current electric push rod for driving is safe, environmental-friendly, energy-saving and portable; the boosting lever for increasing the thrust of the electric push rod can effectively solve the problem of driving force shortage of the electric push rod; a front wheel locking device is added and locks a front wheel while detecting the brake force of a rear wheel so as to accurately detect the brake force of the rear wheel; the movable support plate is designed for being adapted to different shaft distances of different models of tractors; and by adopting a partitioning type design, the assembly and the disassembly are convenient.
Description
Technical field
The invention belongs to the tractor security detection equipment, particularly a kind of device that detects the tractor braking ability that is applicable to is specifically related to a kind of flat-plate type tractor shaft weight brake detecting device with lever boosting mechanism.
Background technology
Tractor is not only the major impetus of farmland operation, also is the major impetus of rural area transportation, and statistical data shows that to 2009, national tractor population reached 1463.3 ten thousand.China's baby tractor majority is based on transportation, and tractor driver's educational level is lower. and the road condition is poor, and the overload phenomenon is serious, and very general, and accident is more.From a large amount of crash analysis reasons, majority relates to the braking ability of tractor, and as the damping force deficiency, left and right sides damping force difference is too big etc., and the underlying cause is that farm machinery management department lacks effective checkout equipment.Therefore. for the accurate detection of tractor braking ability, can effectively eliminate accident potential, to improve the tractor state of the art, to guaranteeing the tractor safety traffic, ensure mass peasants' property and life security, promoting the continual and steady security developments of Tendency of Agricultural Machinery in Chinaization has important function and significance.
Detect at present vehicle braking performances the most commonly used two kinds of drum-type and flat braking test boards are arranged.Roller brake tester mainly is made up of damping force holder, drive unit and damping force indicating device.During test tested vehicle is reached on the monitor station, wheel is between two pairs of cylinders.Cylinder drives wheel under direct motor drive.It is motionless that be equivalent to car this moment, and move with certain speed on the road, then wheel taked braking, and the damping force of wheel acts on the cylinder, the direction of rotation of this power and cylinder.At this moment, counter-rotating to a certain degree takes place in the speed reduction unit that links to each other with cylinder (torsion case) under the effect of the moment of reaction, by device for measuring force, just can measure the numerical value that demonstrates damping force.
Flat braking test board is a kind of vehicle detecting system that integrates braking, axle weight, suspension efficient, surveys sliding multiple test function.This test board detects based on tenet of dynamic state, has taken into full account the rear axle load transfer to the influence of front axle to braking ability, thereby has had the unique advantage that reflects automobile brake perfrmance strictly according to the facts.In addition, this test board has also that the wheel surface adhesion property is fine, surface of contact to do wet degree little to the test result influence, in the braking testing process, four blocks of plates can show synchronously, explicit, being convenient to does not have characteristics such as systematic error to process analysis procedure analysis, testing result.
But roller brake tester and flat braking test board have the following disadvantages:
1, the roller brake tester structure is comparatively complicated, mostly is by motor-driven cylinder and reducing gear, drives torque arm then, is transformed into measuring mechanism again, the cost height, and quality is big, and volume is big, is unfavorable for the layout of mobile detection line.
2, at roller brake tester when detecting vehicle braking performances, it is bigger influenced by equipment and detection method, and vehicle front wheel brake power is difficult to measure, and easily vehicle braking performances is made erroneous judgement.
3, existing flat braking test board causes its test duration shorter because vehicle must its fast braking on test board, can't test the circle variation of damping force in the process of wheel, and the consistance of testing result is relatively poor.
4, when flat braking test board was tested, the time that measurement stops on test board was very short, therefore was difficult to the sticking of brakes power of stable testing.
5, vehicle performance and the environment for use owing to automobile and tractor exists than big-difference, and the principle of the tractor braking performance test platform of comparatively using always at present and standard mostly design with reference to common vehicle, so the testing result error is bigger.
Summary of the invention
The present invention is directed to the shortcoming that roller brake tester and flat braking test board exist, a kind of flat-plate type tractor shaft weight brake detecting device with lever boosting mechanism is provided.
The technical solution used in the present invention is: this pick-up unit from left to right is followed successively by left guided plate, axle re-detection plate, back up pad, braking check-out console and right guided plate, in the both sides of axle re-detection plate first lateral groove and the 3rd lateral groove are set respectively, a side of braking check-out console is provided with second lateral groove; Between axle re-detection plate and back up pad, front wheel locking column is set, between back up pad and braking check-out console, boosting lever is set, and the damping force sensor is installed at the end of boosting lever; The front wheel locking electric pushrod that is connected with front wheel locking column is set in first lateral groove, the braking that is connected with boosting lever is set in second lateral groove detects electric pushrod; The first front wheel locking slide block and the second front wheel locking slide block are set respectively in two ends, first lateral groove and the 3rd lateral groove of front wheel locking column.
On the described first front wheel locking slide block and the second front wheel locking slide block pressure transducer is set all.
The surface working of described braking check-out console is a water chestnut shape washboard.
Described back up pad is made up of two-ply up and down, adopts the length of the form change back up pad of pull, to adapt to the disalignment distance of different tractors.
The present invention has the following advantages:
(1) adopt the direct current drive push rod to drive safety, environmental protection, energy-conservation, light;
(2) adopt the permanent force-increasing mechanism of lever to increase the expulsive force of electric pushrod, can effectively remedy electric pushrod and drive hypodynamic problem;
(3) increase the front wheel locking device, when detecting rear-wheel braking force with front wheel locking, to detect rear-wheel braking force accurately;
(4) design activity back up pad is with the different wheelbase of the tractor that adapts to different model;
(5) adopt sectional type design, easy accessibility.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is an overall scheme of erection of the present invention.
Fig. 3 is a front view of the present invention.
Number in the figure:
1-left side guided plate; 2-axle re-detection plate; 3-first lateral groove; The 4-first front wheel locking slide block; The 5-back up pad; 6-front wheel locking electric pushrod; 7-brakes check-out console; The right guided plate of 8-; 9-second lateral groove; 10-damping force sensor; The 11-boosting lever; The 12-braking detects electric pushrod; The 13-second front wheel locking slide block; The 14-front wheel locking column; 15-the 3rd lateral groove.
Embodiment
The invention provides a kind of flat-plate type tractor shaft weight brake detecting device with lever boosting mechanism, the present invention will be further described below by the drawings and specific embodiments.
As shown in Figure 1, this pick-up unit from left to right is followed successively by left guided plate 1, axle re-detection plate 2, back up pad 5, braking check-out console 7 and right guided plate 8, first lateral groove 3 and the 3rd lateral groove 15 are set respectively in the both sides of axle re-detection plate 2, and a side of braking check-out console 7 is provided with second lateral groove 9; Between axle re-detection plate 2 and back up pad 5, front wheel locking column 14 is set, between back up pad 5 and braking check-out console 7, boosting lever 11 is set, and damping force sensor 10 is installed at the end of boosting lever 11; The front wheel locking electric pushrod 6 that is connected with front wheel locking column 14 is set in first lateral groove 3, the braking that is connected with boosting lever 11 is set in second lateral groove 9 detects electric pushrod 12; In two ends, first lateral groove 3 and the 3rd lateral groove 15 of front wheel locking column 14, the first front wheel locking slide block 4 and the second front wheel locking slide block 13 are set respectively.Axle re-detection plate 2 mainly is to detect tractor shaft weight and the tractor front-wheel is carried out locking, and braking check-out console 7 mainly is to detect the maximum static brake power of tractor brake.Back up pad 5 mainly contains two boards and forms, divide two-layer up and down, can adopt the length of the form change back up pad of pull, to adapt to the disalignment distance of different tractors, the front and back wheel that guarantees tractor is all respectively on axle re-detection plate 2 and braking check-out console 7, to guarantee finishing braking and the heavy detection of axle accurately.The contact portion that detects electric pushrod 12 promotion boosting lever 11 parts and boosting lever 11 promotion braking check-out consoles 7 in braking all adopts roller, transfers sliding contact to the contact of rolling, the consumption of reducing friction.
The front and back wheel shaft is heavy main by 4 LOAD CELLS measurements under the axle re-detection plate 2.Front wheel locking is primarily aimed at a lot of tractors does not have front wheel brake to design, for the tractor that does not have front wheel brake, if lack the front wheel locking device, can't measure the damping force of its trailing wheel, because front-wheel can be along with braking the impetus that detects electric pushrod 12 and rotating backward, and this moment, tested trailing wheel still was not braked check-out console 7 drives, and can't detect the damping force of trailing wheel.
The course of work of the present invention is: tractor travels from right guided plate 8 and goes up monitor station, and front-wheel stops during the position of trailing wheel arrival braking check-out console 7, and brake pedal is floored to an arrival axle re-detection plate 2, brakes.At this moment, front wheel locking electric pushrod 6 begins action, promotes the first front wheel locking slide block 4 and the second front wheel locking slide block 13, and promotes front wheel locking column 14 up to front wheel locking column 14 contact front tyres.Detect by the pressure transducer on the first front wheel locking slide block 4 and the second front wheel locking slide block 13 and to have certain pretightning force between front tyre and the front wheel locking column, draw back to stop front-wheel, front wheel locking electric pushrod 6 stops action then.Braking detection electric pushrod 12 begins to promote boosting lever 11 thereupon, and boosting lever 11 promotes braking check-out consoles 7, and braking check-out console 7 drives detected trailing wheel rotation, just can detect the damping force of tractor then by damping force sensor 10.For preventing the influence of wheel-slip to testing result, the surface working of braking check-out console 7 is a water chestnut shape washboard, to increase the adhesion between table top and wheel.Axle re-detection plate 2 weighs through the out-of-date axle that just can detect its wheel at wheel.Real work is to need two monitor stations to detect simultaneously, can realize the detection to tractor shaft weight, damping force.
This pick-up unit adopts piecemeal assembly unit, and each parts adopts the mode that is threaded to connect and assembles, easy disassembly and carrying.
Claims (4)
1. be with the flat-plate type tractor shaft weight brake detecting device of lever boosting mechanism, it is characterized in that, this pick-up unit from left to right is followed successively by left guided plate (1), axle re-detection plate (2), back up pad (5), braking check-out console (7) and right guided plate (8), first lateral groove (3) and the 3rd lateral groove (15) are set respectively in the both sides of axle re-detection plate (2), and a side of braking check-out console (7) is provided with second lateral groove (9); Between axle re-detection plate (2) and back up pad (5), front wheel locking column (14) is set, between back up pad (5) and braking check-out console (7), boosting lever (11) is set, and damping force sensor (10) is installed at the end of boosting lever (11); The front wheel locking electric pushrod (6) that is connected with front wheel locking column (14) is set in first lateral groove (3), the braking that is connected with boosting lever (11) is set in second lateral groove (9) detects electric pushrod (12); The first front wheel locking slide block (4) and the second front wheel locking slide block (13) are set respectively in two ends, first lateral groove (3) and the 3rd lateral groove (15) of front wheel locking column (14).
2. the flat-plate type tractor shaft weight brake detecting device of band lever boosting mechanism according to claim 1 is characterized in that, on the described first front wheel locking slide block (4) and the second front wheel locking slide block (13) pressure transducer is set all.
3. the flat-plate type tractor shaft weight brake detecting device of band lever boosting mechanism according to claim 1 is characterized in that, the surface working of described braking check-out console (7) is a water chestnut shape washboard.
4. the flat-plate type tractor shaft weight brake detecting device of band lever boosting mechanism according to claim 1, it is characterized in that, described back up pad (5) is made up of two-ply up and down, adopts the length of the form change back up pad of pull, to adapt to the disalignment distance of different tractors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101981181A CN101865779B (en) | 2010-06-03 | 2010-06-03 | Flat-plate type tractor shaft weight brake detecting device with lever boosting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101981181A CN101865779B (en) | 2010-06-03 | 2010-06-03 | Flat-plate type tractor shaft weight brake detecting device with lever boosting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101865779A true CN101865779A (en) | 2010-10-20 |
| CN101865779B CN101865779B (en) | 2012-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101981181A Expired - Fee Related CN101865779B (en) | 2010-06-03 | 2010-06-03 | Flat-plate type tractor shaft weight brake detecting device with lever boosting mechanism |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4011751A (en) * | 1976-02-27 | 1977-03-15 | Applied Power Inc. | Brake tester |
| WO1991019176A1 (en) * | 1990-06-05 | 1991-12-12 | Hunter Engineering Company | Plate brake tester apparatus and method |
| EP0462675A1 (en) * | 1990-06-21 | 1991-12-27 | Sugiura N.V. | Plate brake tester |
| CN2189312Y (en) * | 1994-01-07 | 1995-02-08 | 郭敬文 | Equipment for testing braking force of vehicles |
| CN2216244Y (en) * | 1995-06-15 | 1995-12-27 | 北京欧林特汽车设备高科技有限公司 | Brake performance tester for vehicle |
-
2010
- 2010-06-03 CN CN2010101981181A patent/CN101865779B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4011751A (en) * | 1976-02-27 | 1977-03-15 | Applied Power Inc. | Brake tester |
| WO1991019176A1 (en) * | 1990-06-05 | 1991-12-12 | Hunter Engineering Company | Plate brake tester apparatus and method |
| EP0462675A1 (en) * | 1990-06-21 | 1991-12-27 | Sugiura N.V. | Plate brake tester |
| CN2189312Y (en) * | 1994-01-07 | 1995-02-08 | 郭敬文 | Equipment for testing braking force of vehicles |
| CN2216244Y (en) * | 1995-06-15 | 1995-12-27 | 北京欧林特汽车设备高科技有限公司 | Brake performance tester for vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 《农业机械学报》 20040930 谈黎虹，应霞芳，荆文明 搓板式与滚筒式制动力测试台的测试比较 36-38 第35卷, 第5期 2 * |
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| Publication number | Publication date |
|---|---|
| CN101865779B (en) | 2012-01-11 |
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Granted publication date: 20120111 Termination date: 20130603 |