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Automobile limit block and application thereof

A technology for limit blocks and automobiles, applied in the field of limit blocks, can solve the problems of heavy rubber materials, poor deformation ability, and reduced comprehensive product performance, and achieve the effects of wide application range, long service life and light weight of products

Inactive Publication Date: 2015-12-02
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are many deficiencies in this limit block and need to be improved
First of all, due to the poor deformation ability of rubber products, the product has high rigidity and low comfort; secondly, due to the characteristics of rubber materials, internal heat generation is serious during use, and the comprehensive performance of products is reduced; thirdly, the fatigue life of rubber materials is low. easy to crack
The above characteristics lead to poor road test performance of the rubber limit block
And compared with lightweight materials, rubber materials are heavy, which does not meet the needs of lightweight vehicles

Method used

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  • Automobile limit block and application thereof
  • Automobile limit block and application thereof
  • Automobile limit block and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Prepared from polyurethane materials such as figure 1 with figure 2 Limit block shown. The outer contour of the limit block is in the shape of a gourd, the diameter of the contour gradually decreases from bottom to top, and there are 4 annular structures protruding outward along the axial direction, which can be collapsed step by step during the load process, and can withstand more The larger the load, the greater the deformation capacity of the entity.

[0023] And, the limiting block is solid. The solid limit block guarantees the stability during loading. The density of the limit block is 500-600kg / m at 23℃ 3 .

[0024] The polyurethane material used in Example 1 is a closed-cell 1,5-naphthalene diisocyanate (NDI)-based microcellular foam material. The NDI-based microporous foam material is prepolymerized by NDI and polyol, and is formed by curing with a crosslinking agent. Because NDI contains a naphthalene ring structure and strong molecular chain rigidity, NDI-base...

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PUM

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Abstract

The invention relates to an automobile limit block. The limit block is made from a polyurethane material. The invention further relates to an application of the limit block. The limit block disclosed by the invention has the advantages of being low in density, wear-resistant, low in rigidity, and the like.

Description

Technical field [0001] The invention relates to a limit block, in particular to a vehicle limit block. The invention also relates to the application of the limit block. Background technique [0002] The limit block is a part that is installed on the leaf spring of the car to limit the movement of the frame. Rubber limit blocks are usually used in automobile leaf spring damping systems. For example, the limit blocks of the following patent inventions are all made of rubber materials: "Front spring limit block", patent number: CN303331548S; "A rubber limit block structure", patent number: CN203476934U; Rubber Limit Block for Automobile Suspension, Patent Number: CN203186016U; "Variable Rigidity Rubber Limit Block Assembly for Heavy Vehicles", Patent Number: CN202480818U; Rubber Limit Block, Patent Number: CN202418377U; Automobile Suspension System rubber limit block structure", patent number: CN201317239Y; "a limit block used in automobile rear suspension system", patent number:...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G11/10
Inventor 冯博张凤桥钟汉文宁曾雄陈国栋卜继玲
Owner ZHUZHOU TIMES NEW MATERIALS TECH