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Brake clearance manual regulating arm device of external lock tooth-shaped structure

A manual adjustment and brake clearance technology, applied in the direction of the slack adjuster, etc., can solve the problems of severe impact, damage to the adjustment shaft, failure, etc., and achieve the effect of improving reliability

Active Publication Date: 2014-08-06
绍兴铁安汽配制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the severe and frequent reciprocating impact of the braking force and reverse thrust of the worm gear on the worm and the adjustment shaft during the braking process, the "locking" device on the adjustment shaft is destroyed, resulting in the failure of the "locking"
The second is to install a "locking" device on the two matching surfaces of the adjustment arm housing and the worm. This device does solve the problem of "locking", but it is difficult for assembly and repair personnel to adjust the gap by their own strength.

Method used

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  • Brake clearance manual regulating arm device of external lock tooth-shaped structure
  • Brake clearance manual regulating arm device of external lock tooth-shaped structure
  • Brake clearance manual regulating arm device of external lock tooth-shaped structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Such as Figure 1-Figure 5 As shown, the brake clearance manual adjusting arm device of a kind of outer locking tooth structure of the present invention comprises adjusting arm housing (1), worm (2), elastic material: (steel spring (3a), steel sheet Shrapnel (3b), high-pressure rubber pad (3c)) dustproof protective cover (4), adjustment shaft connecting bolt (5), worm gear (6), adjustment shaft (7), tooth structure on the adjustment shaft (8), Adjust the toothing (9) on the arm housing. The worm (2) and the worm wheel (6) are respectively installed in the worm groove and the worm wheel hole of the adjusting arm housing; the adjusting shaft (7) is installed through the center hole of the center line of the adjusting arm housing (1) and the worm (2) . The rear side of the adjustment shaft (7) is connected with the elastic substance (3) by the assembly bolt (5).

Embodiment 2

[0021] Such as figure 1 As shown, the tooth profile of the tooth structure (9) provided at the front of the adjusting arm housing (1) is cast, the number of teeth is 10 teeth, the height of the teeth is 2.5 mm, and the modulus of the teeth is 2 modules. The elastic device arranged at the rear of the adjustment arm housing (1) is a steel spring (3a), and its elastic pressure is 8N.m. The size of the toothed structure on the adjusting shaft (7) matches the size of the toothed structure (9) on the housing of the adjusting arm.

Embodiment 3

[0023] Such as Figure 5 As shown, the toothed structure of the adjusting arm housing (1) front portion is extruded in vivo and then press-fitted to complete, the number of teeth is 7 teeth, the height of the teeth is 4 mm, and the modulus of the teeth is 3 modules. The elastic device arranged at the rear of the adjustment arm housing (1) is a high-strength rubber pad (3c) and its adjustment pressure is 10N.m.

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Abstract

The invention provides a brake clearance manual regulating arm device of an external lock tooth-shaped structure. The brake clearance manual regulating arm device aims to overcome the defects in the prior art. According to the structure, a locking device of a tooth-shaped structure is arranged on the front side outside a regulating arm shell (1), the surface, matched with the front portion outside the regulating arm shell (1), of a regulating shaft (7) is also provided with a symmetrical tooth-shaped structure, so that mutual matching and locking are achieved, and matching and locking force of the two tooth-shaped structures is provided by elastic materials arranged on the rear portion outside the regulating arm shell (1). When a worm regulating shaft is rotated forward and reversely, symmetrical teeth of the two tooth-shaped structures overcome pressing force generated by an elastic structure, and move from the tooth bottoms to the tooth tops, cross the tooth tops and return to the tooth bottom to be matched. At the moment, the worm regulating shaft (7) slides back and forth in a worm (2), a brake regulating arm of the device has the advantages of achieving tighter locking and easy regulation, and sensitivity, reliability and safety of the brake system are further improved.

Description

technical field [0001] The invention relates to a brake gap manual adjustment arm device with an outer lock tooth structure in a freight car brake system. Background technique [0002] In the existing freight vehicle braking system, the manual adjustment arm of the vehicle brake clearance is an important part of the braking system. Its main function is to adjust the braking clearance, transmit the braking torque, and take on the functions of braking and returning. This requires the adjustment arm mechanism to be able to adjust the brake clearance during work, that is, the assembly and repair personnel can easily adjust it under their own strength conditions, but it can be self-locked when the brake is working, and the phenomenon of slipping cannot occur. When braking, the brake adjustment arm can be quickly moved to form a brake; when the brake is over, the adjustment arm can be quickly returned to release the brake. At the same time, it is required that the device should ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/48
Inventor 戎华庆朱仕丰戎华丰戎正甲
Owner 绍兴铁安汽配制造有限公司