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Three-level balance piston assembly

A technology of balancing pistons and assemblies, applied in the directions of brake components, control valves and bleed valves, brakes, etc., can solve the problems of heavy-duty emergency braking instability, affecting the friction coefficient or friction between the brake hub and the brake pads, etc.

Inactive Publication Date: 2012-07-04
CHANGTONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese utility model patent, two-stage point brake master valve, application number 201020208275, 201010174516 and other technologies, although they have improved many defects of the previous similar technology, but after large-scale promotion, it is found that its mechanical structure and performance design, decided Overcome the shortcomings of heavy load emergency braking instability
[0003] The key factor of the above-mentioned poor braking is that the high temperature generated by the friction between the brake hub and the brake pad during the braking process causes the brake pad to carbonize and form an enamel layer, which seriously affects the friction coefficient or friction force between the brake hub and the brake pad.

Method used

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Examples

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Embodiment

[0022] Embodiment: a three-stage balance piston assembly, including a balance piston, a spring clasp, and a push rod seat. In the cavity of the push rod body at the lower part of the balance piston, there is a disc-shaped disc on the upper periphery of the push rod seat, and the spring clasp is a cylindrical structure, and the upper wall is provided with a constriction. The diameter of the constriction is Matching the diameter of the rod body of the ejector rod base, there are three gaps connected to the shrinkage on the upper half of the side wall and the top of the spring pack, so that the upper part of the spring pack forms three protrusions, and the lower edge of the spring pack is respectively provided with three gaps. The inner and outer flanging, the three inner flangings correspond to the three gaps, the three outer flangings correspond to the three protruding parts; the web plate corresponding to the protruding parts is provided on the disc of the ejector pin seat. ho...

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Abstract

The invention relates to a three-level balance piston assembly, which comprises a balance piston, a spring wrapping clamp and a top rod base. The three-level balance piston assembly has the braking output characteristic of a 'three-step' curve, wherein three steps are named as 'three-level cadence braking'. According to the 'cadence braking' principle, compressed air can form pulses in a control pipeline and an air chamber to act on a brake pad, and an effect of acting on the brake pad by the pulses every time is equivalent to an effect of wiping the brake pad once by using a tool. Therefore, by the three-level balance piston assembly, a brake hub can be bonded with the brake pad forcefully, and the carbonization or an enamelum layer of the brake pad is also improved to a maximum degree, so that poor braking is avoided to achieve an excellent braking effect.

Description

technical field [0001] The invention relates to the technical field of automobile braking, in particular to a three-stage balance piston assembly. Background technique [0002] A survey report from Germany reminds us that according to the evaluation results of the traffic accident rate in the world, the poor braking alone accounts for about 61% of the total. China's utility model patent, two-stage point brake master valve, application number 201020208275, 201010174516 and other technologies, although they have improved many defects of the previous similar technology, but after large-scale promotion, it is found that its mechanical structure and performance design, decided Overcome the shortcomings of heavy load emergency braking instability. [0003] The key factor of the above-mentioned poor braking is that the high temperature generated by the friction between the brake hub and the brake pad during the braking process causes the brake pad to carbonize to form an enamel la...

Claims

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Application Information

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IPC IPC(8): B60T15/18
Inventor 田青锋
Owner CHANGTONG TECH
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