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Drum brake wearing clearance tracker and brake cylinder stroke test bed

A drum brake and wear clearance technology, which is applied in the testing of machine/structural components, instruments, vehicles, etc., can solve the problems of difficult analysis of automatic clearance adjustment mechanism, lack of automatic clearance adjustment mechanism test and detection methods, etc. The effect of improving design and manufacturing quality

Pending Publication Date: 2018-09-18
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual production, there is a lack of testing and detection methods for automatic gap adjustment mechanisms, and it is difficult to analyze automatic gap adjustment mechanisms.

Method used

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  • Drum brake wearing clearance tracker and brake cylinder stroke test bed
  • Drum brake wearing clearance tracker and brake cylinder stroke test bed
  • Drum brake wearing clearance tracker and brake cylinder stroke test bed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The test bench is mainly composed of a machine base 1 , a bearing frame 2 , a displacement adjustment assembly 3 , a specimen support 4 and a computer control system 5 . The test piece support 4 is installed on the machine base 1 and is responsible for installing the drum brake or brake cylinder, and the fixture 19 is replaced according to different brakes; the fixture 21 is replaced according to different brake cylinders. The inclined iron A11 is in complete contact with the inclined surface of the inclined iron B12. The servo motor 8 drives the lead screw 10 to rotate, the lead screw 10 drives the screw nut, and the oblique iron A11 is connected with the screw nut to move up and down. The inclined iron B12 is fixed on the moving plate 13, the moving plate 13 moves horizontally along the guide column 7, a linear bearing 15 is installed between the moving plate 13 and the guide column 7, and the moving plate 13 is equipped with a simulated brake drum 16 or a simulated b...

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PUM

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Abstract

The invention discloses a drum brake wearing clearance tracker and brake cylinder stroke test bed, which is mainly used for the performance test of a hydraulic drum brake wearing clearance tracker anda pneumatic brake cylinder stroke brake cylinder. The test bed is mainly formed by a machine base (1), a bearing frame (2), a displacement adjustment assembly (3), a test piece support (4) and a computer control system (5), and is characterized in that the test piece support (4) is arranged on the machine base (1); the bearing frame (2) is formed by two side vertical plates (6) and four guide pillars (7); and the displacement adjustment assembly (3) is mainly formed by a servo motor (8), a ball screw (10), tapered iron A (11), tapered iron B (12), a moving plate (13) and a displacement sensor(14).

Description

technical field [0001] The invention belongs to a drum brake wear clearance tracker and a brake cylinder stroke test bench, which is mainly used for performance testing of a hydraulic drum brake wear tracker and a pneumatic drum brake brake cylinder. Background technique [0002] In the process of driving, the car often needs to brake to slow down or stop. Due to the frequent use of the brake, the brake shoes are worn, resulting in an increase in the gap between the brake and the brake drum. If the clearance is too large, the stroke of the brake pedal is too large, which seriously affects the braking performance of the whole vehicle and reduces the driving safety. [0003] The gap adjustment of drum brakes is mostly automatic. However, in actual production, there is a lack of test and detection methods for the automatic clearance adjustment mechanism, so it is difficult to analyze the automatic clearance adjustment mechanism. [0004] In order to test and test the automat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007G01M13/00G01B11/14
CPCG01B11/14G01M13/00G01M17/007
Inventor 付明刚刘学峰胡伟苏广平丛春梅
Owner JILIN UNIV
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