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Shoe gap regulator for railway vehicle

A technology for brake shoe clearance and rail vehicles, which is applied in the field of brake shoe clearance adjusters for rail vehicles, can solve the problems of high cost, complex shape of parts, high machining requirements, etc., and achieve the effect of improving efficiency and reducing friction

Active Publication Date: 2013-09-25
NANJING CRRC PUZHEN HAITAI BRAKE EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to realize the automatic adjustment of the gap, the current brake regulator is designed with complex mechanism principles and parts shapes, which requires high machining requirements, resulting in high costs.

Method used

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  • Shoe gap regulator for railway vehicle
  • Shoe gap regulator for railway vehicle
  • Shoe gap regulator for railway vehicle

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Embodiment Construction

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0028] Such as figure 1 , figure 2 As shown, the brake shoe clearance adjuster for rail vehicles consists of: a box body 3, a wedge block 1, a cross shaft 10, an adjustment sleeve 7, and a screw rod 8, and the screw rod 8 is threadedly connected to the adjustment sleeve 7 Inside the first nut 15 and the second nut 13, the first nut 15 is located in front of the second nut 13, and the first nut 15 and the second nut 13 are respectively sleeved with a first return compression spring 16 and a second return compression spring 20, The cross shaft 10 is keyed to the adjustment sleeve 7, and the brake shoe clearance adjuster also includes: a limit sleeve 14 placed ...

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Abstract

The invention relates to a shoe gap regulator for a railway vehicle. The shoe gap regulator comprises a box, a wedge-shaped block, a cross shaft, a regulating sleeve, a screw, a limiting sleeve and limiting plugs, wherein the regulating sleeve and the limiting sleeve are provided with first inserting grooves and second inserting grooves respectively in the axial direction, the limiting plugs are correspondingly inserted into the first inserting grooves and the second inserting grooves, and the contacting surface of the limiting sleeve is matched with the contacting surface a first nut in a gear meshed mode to form a first tooth-shaped clutch mechanism. When a first reset compression spring is compressed, the first nut and the limiting sleeve are separated. The contacting surface of the rear end of a second nut is matched with the contacting surface a brake supporting block in a gear meshed mode to form a second tooth-shaped clutch mechanism, the brake supporting block is fixed inside the regulating sleeve, and when a second reset compression spring is compressed, the second nut and the brake supporting block are separated. According to the shoe gap regulator, a traditional gap regulating mechanism is changed, various functions of the shoe gap regulator are achieved through the simple and reliable mechanisms, and reliability is high.

Description

technical field [0001] The invention relates to a brake shoe gap adjuster for a rail vehicle, which is used for an actuator of the braking force of the rail vehicle and belongs to the technical field of the rail vehicle braking system. Background technique [0002] During the braking process of rail vehicles, due to the wear of brake shoes and brake pads, the piston stroke of the brake cylinder will continue to increase. In order to maintain the reliability of the braking force, it is generally required that the unit brake has the function of automatically adjusting the gap. When the brake shoe or brake pad wears, the brake shoe gap adjuster can ensure that the gap between the brake shoe and the tread of the wheel or between the brake pad and the brake disc remains constant. In order to realize the automatic adjustment of the gap, the current brake regulator is designed with complex mechanism principles and parts shapes, which requires high machining requirements, resulting...

Claims

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Application Information

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IPC IPC(8): B61H15/00
Inventor 吴明赵朱新宇臧传相庞淑娟
Owner NANJING CRRC PUZHEN HAITAI BRAKE EQUIP CO LTD
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