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A brake gap manual adjustment arm device with external locking tooth structure

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

Active Publication Date: 2017-06-20
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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  • A brake gap manual adjustment arm device with external locking tooth structure
  • A brake gap manual adjustment arm device with external locking tooth structure
  • A brake gap manual adjustment arm device with external locking tooth structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Such as Figure 1-Figure 5 As shown, the brake gap manual adjustment arm device of a kind of outer lock tooth structure of the present invention comprises adjustment 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 8 on the adjustment shaft, tooth structure 9 on the housing of the adjustment arm. 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 rear side of the adjustment shaft 7 is connected with the elastic material 3 by the assembly bolt 5 .

Embodiment 2

[0021] Such as figure 1 As shown, the tooth shape of the tooth structure 9 provided at the front of the adjustment 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 adjusting 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 tooth structure of the front part of the adjustment arm housing 1 is extruded in vivo and then press-fitted. 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 whose adjustment pressure is 10N.m.

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Abstract

The object of the present invention is to overcome the disadvantages of the prior art, and provide a brake gap manual adjustment arm device with an external locking tooth structure. In this structure, a locking device with a toothed structure is provided on the front side of the outside of the adjustment arm housing (1), and a symmetrical tooth shape is also provided on the adjustment shaft (7) that coincides with the front of the outside of the adjustment arm housing (1). structure, in order to achieve mutually coincident locking, the coincident locking force of the two tooth structures comes from the elastic material arranged outside the rear of the adjusting arm housing (1). When the worm adjustment shaft is rotated forward and reverse, the two symmetrical teeth overcome the pressing force generated by the elastic structure and move from the bottom of the tooth to the top of the tooth, and cross the top of the tooth to return to the bottom of the tooth. At this time, the worm adjustment shaft (7) slides back and forth in the worm (2), and the brake adjustment arm of the device has the advantages of tighter lock and easier adjustment, which further improves the sensitivity, reliability and safety of the braking system. sex.

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 Patents(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