Flat-plate type tractor shaft weight brake detecting device with lever boosting mechanism
A technology of a force boosting mechanism and a detection device, which is used in the testing of machines/structural components, measuring devices, and vehicle testing, etc., can solve the problems of poor consistency of test results, large error in test results, and large volume, so as to make up for the drive Insufficient force, easy disassembly and assembly
Inactive Publication Date: 2012-01-11
CHINA AGRI UNIV
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Problems solved by technology
[0006] 1. The structure of the drum-type brake test bench is relatively complicated. Most of them are driven by the motor to drive the drum and the deceleration mechanism, then drive the torsion bar, and then switch to the measuring mechanism. The cost is high, the quality is large, and the volume is large, which is not conducive to the layout of the mobile detection line.
[0007] 2. When testing the braking performance of the vehicle on the drum brake test bench, it is greatly affected by the equipment and testing methods, and it is difficult to measure the braking force of the front wheel of the vehicle, so it is easy to make a misjudgment of the braking performance of the vehicle
[0008] 3. The existing flat-plate brake test bench has a short test time due to the rapid braking of the vehicle on the test bench, and it is impossible to test the change of the braking force during the rotation of the wheel, and the consistency of the test results is poor.
[0009] 4. When testing on a flat brake test bench, the measurement stays on the test bench for a short time, so it is difficult to test a stable braking drag force
[0010] 5. Due to the large difference in the performance and use environment of automobiles and tractors, the principles and standards of the tractor braking performance test benches commonly used at present are mostly based on the design of ordinary vehicles, so the test results have large errors
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[0027] The present invention provides a flat-bed tractor axle load braking detection device with a lever booster mechanism. The present invention will be further described with reference to the drawings and specific implementation methods below.
[0028] like figure 1 As shown, the detection device from left to right is the left guide plate 1, the axle load detection plate 2, the support plate 5, the brake detection plate 7 and the right guide plate 8, and the second One side groove 3 and the third side groove 15, the second side groove 9 is set on one side of the brake detection plate 7; the front wheel locking cylinder 14 is set between the axle load detection plate 2 and the support plate 5, A booster lever 11 is set between the brake detection plate 7, and a braking force sensor 10 is installed at the end of the booster lever 11; a front wheel lock electric motor connected to the front wheel lock cylinder 14 is set in the first side groove 3 The push rod 6 is provided in ...
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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 [0001] The invention belongs to tractor safety testing equipment, in particular to a device suitable for testing tractor braking performance, in particular to a flat tractor axle load braking testing device with a lever booster mechanism. Background technique [0002] Tractors are not only the main driving force for farmland operations, but also the main driving force for rural transportation. Statistics show that by 2009, the number of tractors in the country reached 14.633 million units. Most of the small tractors in our country are mainly used for transportation, and the educational level of the operators is low. The road conditions in rural areas are poor, overloading is serious, and it is very common, and there are many accidents. From the analysis of a large number of accidents, most of them are related to the braking performance of the tractor, such as insufficient braking force, too large difference between the left and right braking forces, etc. The ...
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IPC IPC(8): G01M17/007G01L5/28
Inventor王书茂杨伟平王新段娜
OwnerCHINA AGRI UNIV