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Second piston member of brake master cylinder assembly

A technology for piston parts and brake master cylinders, which is applied in the direction of brakes, vehicle parts, brake transmissions, etc., can solve the problems of large number of assembly parts, many assembly links, and low assembly efficiency, so as to achieve high efficiency and reduce assembly Links, the effect of improving assembly efficiency

Pending Publication Date: 2021-02-19
JILIN DONGGUANG AOWEI AUTOMOBILE BRAKE SYST
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a second piston part of a brake master cylinder assembly to solve the existing problems of large number of assembly parts, many assembly links, low assembly efficiency and high cost

Method used

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  • Second piston member of brake master cylinder assembly
  • Second piston member of brake master cylinder assembly
  • Second piston member of brake master cylinder assembly

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Embodiment Construction

[0010] Such as figure 1 As shown, it consists of a second piston 1 and a second piston spring 2, wherein one end of the second piston spring 2 is interference fit with the boss 101 of the second piston 1 for axial positioning, and the other end of the second piston spring 2 It is used for clearance fit with the inner boss of the main cylinder body 3 bottom.

[0011] The present invention optimizes the structure of the joint between the second piston and the second piston spring, and determines that the technical solution is changed from the original clearance fit to the interference fit. figure 2 As shown, the clearance fit with the second piston spring realizes the axial limit, and the whole second piston part realizes the axial positioning under the action of the installation force of the booster transmitted from the first piston part 4, which satisfies the requirements of the brake master cylinder assembly. performance requirements.

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Abstract

The invention relates to a second piston part of a brake master cylinder assembly, and belongs to parts of plunger type brake master cylinders in the technical field of automobile brake systems. The second piston member is composed of a second piston and a second piston spring, one end of the second piston spring is in interference fit with a boss of the second piston for axial limiting, and the other end of the second piston spring is used for being in clearance fit with a boss in the bottom of a master cylinder body. The second piston member has the advantages that the structure is novel, compared with a conventional second piston member, the second piston member disclosed by the invention has the advantages that a spring limiting base and a small gasket in the second piston member are omitted, the processes of point riveting and size inspection are reduced, and higher low-cost property and higher efficiency are achieved; and the modular standard design can be applied to various types of plunger type brake master cylinders, the brake performance is not affected, the assembly links are reduced, the assembly efficiency is improved, the cost is reduced, and the cost performance is good.

Description

technical field [0001] The invention relates to components of a plunger-type brake master cylinder in the technical field of automobile brake systems, in particular to a second piston part of a brake master cylinder assembly. Background technique [0002] Existing conventional plunger brake master cylinders for automobile braking, such as Figure 4 Shown, its parts and components are mainly made up of main cylinder body 3, first piston part 4, second piston part, main leather cup, auxiliary leather cup etc. Wherein the conventional second piston part structure such as image 3 As shown, it is composed of the second piston 1, the second piston spring 2, the spring limit seat 5, and the small washer 6, wherein the small washer is riveted with the second piston, and the second piston spring relies on the spring limit seat and the second piston spring. The radial position is limited by the clearance fit of the piston. This part preloads the second piston spring to realize the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/12B60T17/02
CPCB60T13/12B60T17/02
Inventor 石喜娟倪维海杨圣文林森李泽明李丕雷王富辉
Owner JILIN DONGGUANG AOWEI AUTOMOBILE BRAKE SYST
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