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Double-pipe line hydraulic brake main cylinder

A technology of hydraulic braking and dual pipelines, which is applied in the field of improvement of existing automobile braking systems, can solve problems such as poor corrosion resistance, increased production costs, and reduced service life, and achieve weight reduction, cost reduction, and price reduction. cheap effect

Inactive Publication Date: 2004-03-24
徐瑞祥
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Usually, the brake master cylinder body is mostly made of gray iron, and the piston is anodized with ZL107. However, due to the lack of gray iron itself, the cylinder body will be damaged due to leakage during long-term use (with the presence of high-pressure brake oil). Defects such as oil, wear, and poor corrosion resistance lead to reduced service life. In order to improve its surface hardness, corrosion resistance and wear resistance, the piston must be anodized, which increases the production cost.

Method used

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Embodiment Construction

[0007] As shown in the figure, the dual-pipeline hydraulic brake master cylinder provided by the present invention mainly includes a cylinder block, a first piston, a second piston, a first spring, a second spring, a main cup, and an auxiliary cup , spring retaining ring and compensation hole, etc., the improvement is that the piston is provided with an axial ￠1 oil hole, and the master cylinder body and piston are composite reinforced, wear-resistant and heat-resistant , modified nylon material, and one-time die-casting molding, wherein the composition of the modified nylon material is: nylon 80-85%, glass fiber 2-3%, carbon fiber 6-7%, and the rest is NBR; Die-casting molding process The parameters are: the pressure required for injection molding is 5000MPa, the temperature required for injection molding is 250-260°C, the pressure-holding time for injection molding is 10-15 seconds, and the cooling method is air cooling.

[0008] The present invention is to the performance o...

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Abstract

The present invention relates to a double-pipeline hydraulic brake main cylinder, betonging to automobile fitting, and it mainly includes cylinder body, first piston, second piston, first spring, second sping, main rubber cup, auxiliary rubber cup, spring retainer ring and compensation hole, and its improvement lies in that on the piston an axial oil hole is set, and the described main cylinder body and pistons are made of composite reinforced wear-resistant heat-resistant modified nylon material whose composition is composed of 80-85% of nylon, 2-3% of glass fibre, 6-7% of carbon fibre and the rest butyronitrile through the process of die-casting forming treatment. Its injection forming pressure is 5000 MPa, temp. is 250-260 deg.C and pressure-retaining time is 10-15 sec. and its cooling mode is air cooling.

Description

Technical field [0001] The invention relates to a dual-pipeline hydraulic braking master cylinder, which belongs to an automobile accessory and is an improvement to the existing automobile braking system. Background technique [0002] Usually, the brake master cylinder body is mostly made of gray iron, and the piston is anodized with ZL107. However, due to the lack of gray iron itself, the cylinder body will be damaged due to leakage during long-term use (with the presence of high-pressure brake oil). Defects such as oil, wear, and poor corrosion resistance lead to reduced service life. In order to improve its surface hardness, corrosion resistance and wear resistance, the piston must be anodized, thus increasing the production cost. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art. By improving the material and internal structure of the brake master cylinder, a brake master cylinder ma...

Claims

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Application Information

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IPC IPC(8): B60T11/16B60T17/00
Inventor 徐瑞祥
Owner 徐瑞祥
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