CN2195654Y

CN2195654Y - Oscillating bearing

Info

Publication number: CN2195654Y
Application number: CN 94228129
Authority: CN
Inventors: 刘正明
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-27
Filing date: 1994-03-27
Publication date: 1995-04-26
Anticipated expiration: 2004-03-27

Abstract

The utility model discloses an oscillating bearing, which is provided with a reinforcing composite layer. The utility model is composed of an outer ring (1) and an inner ring (5). The utility model is characterized in that a globular bronze powder middle layer (3) is clamped between the steel basal body layer (2) of the outer ring (1) and a plastic sliding surface layer (4) which is composed of modified polyoxyalkylene methylene (polyoxymethylene). The oscillating bearing has the advantages of abrasion resistance, heat resistance, strong bearing capacity and good dimensional stability; various metallic and non-metallic oscillating bearings can be replaced by the utility model. The utility model is especially suitable for being used under the conditions of low speed, heavy load, wobbling, etc.

Description

Oscillating bearing

The utility model relates to a kind of sliding contact bearing, particularly a kind of joint shaft bearing.

Existing joint shaft bearing is various in style.Standard GB 304 has been introduced the structural type of joint shaft bearing commonly used among the 4-88.In these joint shaft bearings, the slidingsurface of its outer ring, what have is one deck sintered bronze composite material, what have is one deck modified glass-fiber reinforced plastic.In these surface layers, though the fiberglass plastic surface layer has frictional behaviour preferably, exist shortcomings such as intensity is low, heat radiation is bad, size is unstable, working life is not long, make it can only be used in the not high and unessential occasion of ask for something.Though and bronze is that frictional behaviour is a kind of preferably in the metallic material, performance neither be very satisfactory, and the price comparison costliness, thereby this structure applications scope is narrower, is only limited to undersized bearing.

The purpose of this utility model is the deficiency that will overcome above-mentioned prior art, provide a kind of its outer ring have better heat dispersion, than the joint shaft bearing of high-wear resistance and strong bearing capacity composite bed.

The purpose of this utility model is achieved in that a kind of joint shaft bearing, comprises outer ring and inner ring, it is characterized in that, accompanies spherical bronze powder mesosphere between the steel base layer of outer ring and the plastics slidingsurface layer that constitutes with modification polyoxymethylenes (polyoxymethylene).

The utility model is compared with existing joint shaft bearing, have anti-attrition, wear-resisting, heat-resisting, advantage such as thermal diffusivity is good, bearing capacity is strong, dimensional stability is good, thereby can replace various metals, nonmetal joint shaft bearing comprehensively, be particularly suitable under conditions such as low-speed heave-load, swing, using.

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is the utility model structural representation.

As shown in Figure 1, the utility model is made of outer ring (1) and inner ring (5).The structure of outer ring (1) is divided into three layers again, and base layer (2) is a material with the 45# steel; Mesosphere (3) by specification is: the 8-3 tin bronze, and the 40-60 order, the spherical bronze powder of sphere diameter 0.5mm is a material, sintering is on steel base; Slidingsurface layer (4) is to be polyoxymethylenes (polyoxymethylene) 94.8% by weight ratio, and is plumbous 0.5%, after graphite 4.7% mixes, is pressed into one with mesosphere (3) under melted state.Three layers thickness is followed successively by 20:1:1 than from the inside to the outside.The outer ring (1) that strengthens composite bed that has of making is cooperated with inner ring (5), promptly constitute the utility model joint shaft bearing.

Claims

1, a kind of joint shaft bearing comprises outer ring (1) and inner ring (5), it is characterized in that, accompanies spherical bronze powder mesosphere (3) between the steel base layer (2) of outer ring (1) and the slidingsurface layer (4) that constitutes with modification polyoxymethylenes plastics.