Motor vehicle axle load testing device integrated with brake platform
A test device and motor vehicle technology, applied in the direction of measuring device, vehicle test, machine/structural component test, etc., can solve the problems of increasing labor intensity of operators, increasing device layout space, platform lifting device failure, etc., to achieve Improve test efficiency, reduce the number of parking positioning, and facilitate the use and maintenance of the effect
Inactive Publication Date: 2011-06-15
ZHEJIANG UNIV +1
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Problems solved by technology
When the axle load is large, the platform lifting device is prone to failure or jamming
[0004] In addition, most of the current testing devices use the braking force test and the axle load test as two separate devices. In this way, the braking performance test must be divided into two stations for arrangement, which increases the complexity of the device arrangement. At the same time, it also increases the number of stops during the test, increases the test time, reduces the test efficiency, and increases the labor intensity of the operator
Method used
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Embodiment Construction
[0017] The test device of the present invention has a guide frame 2 and a drum-type braking force test bench 3 placed in the guide frame 2 , a rolling bearing and a support 4 , a working cylinder 5 , and a force sensor 12 .
[0018] Figure 1 to Figure 3 The shown guide frame 2 is in the shape of a cuboid and has four inner walls; a drum-type braking force test bench 3 is placed in the center of the guide frame 2 . combine figure 1 and figure 2 It can be seen that the left and right sides of the drum type braking force test bench 3 (i.e. figure 1 The end faces of the left and right sides of the shown vehicle driving direction) are respectively welded with load-bearing plates 14, and the outer surfaces of the load-bearing plates 14 on the left and right sides are respectively fixedly equipped with two rolling bearings and supports 4. Such as figure 1 As shown, rolling bearings and brackets 4 are also fixedly installed on the front and rear end faces of the drum type brakin...
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The invention discloses a motor vehicle axle load testing device integrated with a brake platform, which comprises a guide frame, a roller type braking force testing platform, rolling bearings, supports, a working cylinder and force transducers, wherein the roller type braking force testing platform, the rolling bearing and the support are arranged in the guide frame; the roller type braking force testing platform is arranged at a central position of the guide frame; the left and right two sides of the roller type braking force testing platform are fixedly provided with bearing plates respectively; the force transducers are fixedly arranged under the bearing plates and fixedly connected with the cylinder push rod of the working cylinder; the roller type braking force testing platform and the outer sides of the bearing plates are fixedly provided with the rolling bearings and the support respectively; and the rolling bearings and the rolling bearings of the supports are contacted with the inner wall of the guide frame respectively. The device has the advantages of combined functions of braking force and axle load bearing, high test efficiency, high measurement accuracy, simple structure and easy maintenance.
Description
technical field [0001] The invention relates to a testing device for braking force and axle load of a motor vehicle. Background technique [0002] In order to ensure the safety of motor vehicles, motor vehicles must have a braking system with good performance. If the performance of the braking system is not good, there is a risk of accidents. [0003] The existing roller brake test bench is to place the wheel of the vehicle under test on the brake roller, drive the roller to rotate with a motor, and measure the force according to the force opposite to the rotation direction of the brake roller measured when the vehicle is braking. and a device indicating braking force. The wheel lifting device of the brake test bench is generally implemented by a cylinder or an air bag. When the parking position of the wheel deviates greatly from the center of the cylinder, the cylinder will bear a large lateral stress and the friction force is also large, so the effective thrust of the cyl...
Claims
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IPC IPC(8): G01M17/007G01L5/28G01G19/02
Inventor 何文华顾赟姚建松朱张才范旭辉程叶明熊树生吕胤鼎
Owner ZHEJIANG UNIV