Oil cylinder-propelled drum type braking force test device

A testing device, a drum-type technology, applied in the direction of measuring devices, force/torque/work measuring instruments, instruments, etc., can solve the problems of high production cost, high device height, measurement error and complex structure of the whole machine, and achieve simple operation and convenient effect

Inactive Publication Date: 2010-12-08
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the detection accuracy is high and the scope of application is wide, there are measurement errors and the complex structure of the whole machine, the height of the device is high, the production cost is high, and motor vehicles can only be detected on a fixed site

Method used

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  • Oil cylinder-propelled drum type braking force test device
  • Oil cylinder-propelled drum type braking force test device
  • Oil cylinder-propelled drum type braking force test device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0017] The drum-type braking force testing device driven by the oil cylinder of the present invention is composed of a hydraulic oil cylinder 14, a rack 8, a gear 6, a gear shaft 9, two braking and testing units and the like.

[0018] The hydraulic oil cylinder 14 is fixed on the frame (not shown in the figure) by bolts, which provides driving force for the testing device of the present invention. like figure 1 and figure 2 As shown, the piston flange 12 is welded on the outer end of the piston 13 of the hydraulic cylinder 14, and the rack flange 11 is welded on the end of the rack 8 close to the hydraulic cylinder 14, the piston flange 12 and the rack The flanges 11 are connected together by bolts, nuts and gaskets 10 . Thereby, the piston 13 of the hydraulic cylinder 14 is fixedly connected with the end of the rack 8 close to the hydraulic cylinder 14, so as to ensure that the driving force provided by the hydraulic cylinder 14 can act on the rack 8 through this connectio...

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Abstract

The invention discloses an oil cylinder-propelled drum type braking force test device. A piston of a hydraulic oil cylinder of the test device is fixedly connected with one end of a rack, and the other end of the rack is engaged with a gear; a gear shaft passes through the gear; two braking and testing units are symmetrically connected with two ends of the gear shaft respectively, a first bearing and a bearing seat are arranged between each braking and testing unit and the outer end face of the gear respectively, the gear shaft passes through the first bearing and the bearing seat, and an anti-offset device is arranged beside the rack; each braking and testing unit comprises a torque sensor, a first drum and a second drum; a second bearing and a bearing seat are arranged at two ends of the rotating shafts of the first drum and the second drum respectively; and one end of the rotating shaft of the first drum is connected with one end of the torque sensor, and the other end of the torque sensor is connected with the gear shaft. The test device has the advantages of high measurement precision, small error and capability of performing mobile test.

Description

technical field [0001] The invention relates to a motor vehicle braking force testing device, in particular to a drum-type braking force testing device driven by an oil cylinder. Background technique [0002] The quality of motor vehicle braking performance is directly related to driving safety. A good and reliable braking system can ensure driving safety and avoid traffic accidents; The quality of the braking performance also affects the dynamic performance of the motor vehicle. Therefore, regular testing and mandatory maintenance of the braking performance of motor vehicles can ensure that the motor vehicles are always in good technical condition and drive safely. [0003] The motor vehicle roller reaction brake test bench widely used at present is to place the wheel of the vehicle under test on the brake roller, and use the motor to drive the roller to rotate. A device that measures and indicates braking force by means of force. Although the detection accuracy is high ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/28
Inventor 何文华曲振爱吕胤鼎顾赟李伟熊树生
Owner ZHEJIANG UNIV
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