CN2269491Y

CN2269491Y - Rubber metal composite parts for ball joints

Info

Publication number: CN2269491Y
Application number: CN 96235366
Authority: CN
Inventors: 陈孟平
Original assignee: Shida Plastic Industrial Co ltd Zhuzhou
Current assignee: Zhuzhou Times New Material Technology Co Ltd
Priority date: 1996-07-27
Filing date: 1996-07-27
Publication date: 1997-12-03
Anticipated expiration: 2006-07-27

Abstract

The utility model relates to a rubber metal composite part for ball joints. The outer surface of a ball-shaped body is composite with a rubber layer on which a metal steel jacket is composite. The utility model utilizing the design can form a flexible no-wear structure which not only can bear large warp-direction load, but also can satisfy the performances in a turning and a deflecting directions. Meanwhile, due to the adoption of the structural form of a trivalve type casing, the utility model can effectively eliminate internal stress generated by the different heat coefficients of rubber and metal so as to greatly enhance the reliability and the qualified rate of products, and can be widely applied to various devices of various locomotives, and particularly high-speed locomotives to be used for shock absorption and buffering.

Description

Ball-joint class rubber-metal composite component

The utility model relates to the rubber-metal composite component of a kind of damping, buffering usefulness, is mainly used in locomotive particularly in the various devices of express locomotive.

Along with locomotive develops to direction at a high speed, the suffered vibration of locomotive will come acutely more.In order to reach the purpose of speed-raising, it is particularly important that the application of yielding rubber element just seems.Old-fashioned rigidity connection set has not satisfied needs, and simple rubber ring and rubber pad, though also play the damping, buffering effect, but for the performance of reversing with deflection direction, but there is significant limitation, also be difficult to satisfy the damping, buffering needs of all kinds of devices on the bullet train, thereby necessary the improvement.

The purpose of this utility model is exactly the deficiency at above steel construction piece and simple rubber ring, a kind of novel warp-wise rigidity, axial torsion taken into account proposed, and the rubber-metal composite component of deflection characteristic, with traction stability that satisfies locomotive and the requirement that moment of torsion transmits.

Implementing the technology implementation scheme that the utility model proposed is to adopt overcoat to be divided into the structure of three lobes, can eliminate because of the different internal stresss that produce with the metal fever coefficient of rubber.Location status after press-fiting according to the utility model simultaneously, leave and take the mode of certain pre compressed magnitude before taking to be unkitted, and the method for enforcement overcoat and mandrel original state decentraction, make the center of the utility model after guaranteeing center of effort and press-fit the utility model under certain pre-compression force overlap.

The utility model will be further described below in conjunction with accompanying drawing;

Fig. 1 is the utility model form structure schematic representation;

Fig. 2 is the utility model axial section view.

The utility model is the composite component of a metal body (1) and rubber product body (2) as can be seen from accompanying drawing, it is characterized in that, mandrel of the present utility model (3) middle part is a spheroid (4), the external layer of spheroid (4) by hot vulcanization compound one deck rubber layer (2), compound again a metal steel bushing (1) on rubber layer (2), the profile of metal steel bushing (1) is cylindric, its inner chamber and rubber layer (2) are compound to be one, and metal steel bushing (1) is that 120 ° of five equilibrium arcs of three lobes piece constitutes, after metal steel bushing (1) is compounded on the rubber layer (2), its arc core and mandrel (3) decentraction, and the also mutual decentraction of metal steel bushing (1) three lobe, this mainly is because rubber layer of the present utility model (2) leaves the pre compressed magnitude of 1.5～15mm in diametric(al), overlapping in after the utility model can guarantee center of effort and press-fit the utility model after certain pre-compression force is installed, the distinguish jointing of this external the utility model metal-coating (1) three lobe respectively has a technology breach (6) that 1～10mm is wide.Press-fit in order to of the present utility model.

Claims

1, ball-joint class rubber-metal composite component, be the composite component of metal body (1) with rubber product body (2), it is characterized in that, mandrel of the present utility model (3) middle part is a spheroid (4), the external layer of spheroid (4) compound one deck rubber layer (2), compound again a metal steel bushing (1) on rubber layer (2), the profile of metal steel bushing (1) is cylindric, the inner chamber (5) of metal steel bushing (1) is compound with rubber layer (2) to be one, and metal steel bushing (1) is that 120 ° of five equilibrium arcs of three lobes piece constitutes, after metal steel bushing (1) is compounded on the rubber layer (2), its arc core and mandrel (3) decentraction, and the also mutual decentraction of metal steel bushing (1) three lobe.

2, composite component according to claim 1 is characterized in that rubber layer of the present utility model (2) leaves the pre compressed magnitude of 1.5～15mm in diametric(al).