CN101881299A

CN101881299A - Plastic oscillating bearing

Info

Publication number: CN101881299A
Application number: CN 201010234217
Authority: CN
Inventors: 孙志华; 马赞兵
Original assignee: ZHEJIANG CHANGSHENG SLIDING BEARING CO Ltd; JIASHAN CHANGSHENG PLASTIC BEARING TECHNOLOGY Co Ltd
Current assignee: ZHEJIANG CHANGSHENG SLIDING BEARING CO Ltd; JIASHAN CHANGSHENG PLASTIC BEARING TECHNOLOGY Co Ltd
Priority date: 2010-07-20
Filing date: 2010-07-20
Publication date: 2010-11-10

Abstract

The invention discloses a plastic oscillating bearing, which has the advantages of high precision, light weight, simple manufacture technology, low cost, long service life and convenient installation and use. The plastic oscillating bearing comprises an inner ball, the middle of which is provided with a through hole, wherein the inner ball is externally provided with a shell of an inner ball surface hole which is matched with the inner ball; and the shell is made from engineering plastics. The plastic oscillating bearing is characterized in that the shell is provided with a jointed seam which is penetrated through the inner surface and the outer surface of the shell. As being wholly made from the plastics, the plastic oscillating bearing has the advantages of better corrosion resistance, self-lubricating property and wear-resisting property, low nose, good cushioning property and light weight. With the elastic deformation of the jointed seam and the shell which is made from the engineering plastics, the inner ball is smoothly and fast arranged in the shell, the shell is arranged in a bearing seat hole when the bearing is used, and the jointed seam hardly influence the use performance of the oscillating bearing. Therefore, the plastic oscillating bearing ingeniously and simply realizes the desire that the plastic oscillating bearing can be made from the engineering plastics.

Description

Plastic oscillating bearing

Technical field

The present invention relates to joint shaft bearing, relate in particular to a kind of plastic oscillating bearing made from engineering plastics.

Background technique

Common joint shaft bearing is the endosphere that through hole is arranged by the centre, and the outside of endosphere is shaped on the shell that matches with endosphere and forms.Traditional joint shaft bearing is to be made by metallic material, utilizes the heat or the cold deformation of metallic material shell, and endosphere is fixed in the shell.The joint shaft bearing machining accuracy of this metal is low, Heavy Weight, and distortion is big, working life is short.Because engineering plastics are in light weight, low cost of manufacture, abrasion resistance properties is good, many artificers attempt to utilize these advantages of engineering plastics to make joint shaft bearing, and engineering plastics are thermoplastic materials, just can't redeformation allow endosphere enter into shell aperture behind the casing forming outside, therefore patent 200810150773.2 engineering plastic spherical plain bearing sheathing materials are arranged, interior ball material and forming method thereof, disclosed manufacture method is to inject endosphere earlier, then endosphere is put into outer casing mold as inserts and inject shell, engineering plastic spherical plain bearing after the injection moulding is put into baking oven to heat up several times, the circulation reprocessing of insulation and cooling makes endosphere can rotate in shell.Though can make endosphere moving in this way in the shell transfer, but complex process, manufacturing efficiency is low, the manufacture cost height, and because plastic plasticity is big, when the composition of plastics, heating or different endosphere clamping stagnation or loose excessively, the precision of processing and difficult quality guarantee of all might causing of chilling temperature in the course of working with speed.

Summary of the invention,

The object of the present invention is to provide a kind of precision height, in light weight, manufacturing process is simple, cost is low, long service life, plastic oscillating bearing easy to install and use.

In order to achieve the above object, the technological scheme of plastic oscillating bearing is: the endosphere that through hole is arranged in the middle of it comprises, the outside of endosphere is shaped on the shell of the endosphere face that matches with endosphere, shell is made with engineering plastics, it is characterized in that being shaped on shell a piece that connects inner surface of outer cover and outer surface.

Described endosphere is made with engineering plastics.

Above-mentioned engineering plastics are meant polyoxymethylene or polyphenylene sulfide or polyether-ether-ketone or nylon 66 or nylon 46 or any middle reinforcing fiber or the solid lubricant of adding in polyoxymethylene, polyphenylene sulfide, polyether-ether-ketone, nylon 66 and nylon 46.Described reinforcing fiber is meant glass fibre.Described solid lubricant is meant teflon or molybdenum disulfide or graphite.

Plastic oscillating bearing according to such scheme is made because integral body is made of plastic, have corrosion resistance, self-lubricating property and extraordinary wear-resisting property preferably, and noise is low, shock absorption is good, lightweight advantage.On shell, be shaped on a piece that connects inner surface of outer cover and outer surface, when endosphere is installed, shell firmly drawn back, it is big that piece becomes, and makes the inner ball surface aperture of shell greater than the endosphere outer rim, after endosphere is put into shell, piece closes up, and endosphere just is fixed in the shell.It utilizes the resiliently deformable of engineering plastics shell, and smoothly and apace endosphere is contained in the shell, and shell is installed in the bearing saddle bore in use, and piece is had no effect to the usability of joint shaft bearing.Ingenious and realized the hope that people all the time attempt to make with engineering plastics joint shaft bearing simply.This product can be widely used in the mechanical devices such as chemical industry, medicine, instrument, instrument, Aeronautics and Astronautics, food processing.

Description of drawings

Fig. 1 is the plan view of endosphere;

Fig. 2 is the plan view of shell;

Fig. 3 is the plan view of plastic oscillating bearing;

Fig. 4 is the left view of Fig. 3;

Fig. 5 is that shell draws back, and piece becomes the phase diagram when placing endosphere greatly.

Among the figure: 1, through hole; 2, endosphere; 3, endosphere face; 4, shell; 5, piece.

Embodiment

The present invention is further described by the following embodiment.

The endosphere 2 that it has through hole 1 in the middle of comprising as shown in Figure 1, the shell 4 that the outside of endosphere 2 is shaped on the endosphere face 3 that matches with endosphere 2 as shown in Figure 2, shell 4 usefulness engineering plastics are made, and are shaped on a piece 5 that connects inner surface of outer cover and outer surface on shell 4.The erection drawing of endosphere 2 and shell 4 as shown in Figure 3, Figure 4, described endosphere 2 usefulness engineering plastics are made.Wherein make shell 4 and endosphere 2 used engineering plastics mainly are meant polyoxymethylene or polyphenylene sulfide or polyether-ether-ketone or nylon 66 or nylon 46 etc., also can be in polyoxymethylene, polyphenylene sulfide, polyether-ether-ketone, nylon 66 and nylon 46 any in add reinforcing fiber or solid lubricant.Described reinforcing fiber is meant glass fibre etc.Described solid lubricant is meant teflon or molybdenum disulfide or graphite etc.

When endosphere 2 is installed, shell 4 is firmly drawn back, piece 5 becomes big, makes 3 mouthfuls in the endosphere face of shell 4 greater than endosphere 2 outer rims, and endosphere 2 is put into shell 4 as shown in Figure 5, after close up piece again.

Claims

1. plastic oscillating bearing has the endosphere of through hole in the middle of it comprises, the outside of endosphere is shaped on the shell of the endosphere face that matches with endosphere, and shell is made with engineering plastics, it is characterized in that being shaped on shell a piece that connects inner surface of outer cover and outer surface.

2. plastic oscillating bearing according to claim 1 is characterized in that described endosphere makes with engineering plastics.

3. plastic oscillating bearing according to claim 1 is characterized in that described engineering plastics are meant polyoxymethylene or polyphenylene sulfide or polyether-ether-ketone or nylon 66 or nylon 46 or any middle reinforcing fiber or the solid lubricant of adding in polyoxymethylene, polyphenylene sulfide, polyether-ether-ketone, nylon 66 and nylon 46.

4. plastic oscillating bearing according to claim 2 is characterized in that making the used engineering plastics of endosphere and is meant polyoxymethylene or polyphenylene sulfide or polyether-ether-ketone or nylon 66 or nylon 46 or any middle reinforcing fiber or the solid lubricant of adding in polyoxymethylene, polyphenylene sulfide, polyether-ether-ketone, nylon 66 and nylon 46.

5. according to claim 3 and 4 described plastic oscillating bearings, it is characterized in that described reinforcing fiber is meant glass fibre.

6. according to claim 3 and 4 described plastic oscillating bearings, it is characterized in that described solid lubricant is meant teflon or molybdenum disulfide or graphite.