CN103883616A

CN103883616A - Sectional rolling body type ringless bearing structure

Info

Publication number: CN103883616A
Application number: CN201410084805.9A
Authority: CN
Inventors: 姚振红
Original assignee: Suzhou Jiederui Precision Machinery Co Ltd
Current assignee: Suzhou Jiederui Precision Machinery Co Ltd
Priority date: 2014-03-10
Filing date: 2014-03-10
Publication date: 2014-06-25

Abstract

The invention discloses a sectional rolling body type ringless bearing structure, which comprises a retainer and a rolling body, wherein multiple continuous rolling needle grooves are formed in the retainer, the rolling body is arranged in the rolling needle grooves and composed of multiple connected rolling structures. Compared with the prior art, a rolling needle body in the ringless bearing is arranged in a sectional manner; through the structure, the pressure can be effectively shared by multiple small rolling needles; clearances among the small rolling needles can be used for containing dust in the mechanical structure to prevent the dust from polluting other devices.

Description

A kind of segmentation rolling body type is without circle bearing structure

Technical field

The present invention relates to a kind of rolling element structure composition without Internal and external cycle bearing, particularly a kind of segmentation rolling body type is without circle bearing structure.

Background technique

Use without circle bearing is usually more accurate, a kind of live bearing without outer ring and inner ring without circle bearing, usually directly contact other mechanical parts, wear and tear larger, also damage than being easier to, usually under larger pressure, rotate, this bearing is the support as fixing needle roller by the retainer in plain bearing only, therefore, needle roller is exposedly directly to contact with other mechanical parts outside, in long-term work, can be infected with foreign material and dust in much equipment, cause occurring wearing and tearing and the damage of mechanical parts.

This bearing is in the past worked for a long time and is understood unstable wear under this environment, there is cut or bad hole in needle roller outer wall surface, these cuts or bad hole are just more prone to sneak into foreign material, and such vicious circle meeting causes the stuck of needle roller, and other mechanical parts even wear and tear.

Summary of the invention

The technical issues that need to address of the present invention are for above-mentioned the deficiencies in the prior art, and provide one both can prevent that rolling element was stuck, also can effectively hold the segmentation rolling body type of dust and foreign material without circle bearing structure.

For solving the problems of the technologies described above, the technical solution used in the present invention is:

A kind of segmentation rolling body type, without circle bearing structure, comprises the retainer with some continuous needle roller grooves, and is arranged on the rolling element in needle roller groove, and described rolling element is made up of some connected rolling structures;

Multiple connected rolling structures are arranged side by side, and size is identical, and each rolling element is independent rotational structure.

As preferred version further, described rolling structure is needle roller body; Needle roller body is cylindrical structural, or trapezium structure, and the external wall of needle roller also can make arcuate structure.

As preferred version further, described rolling structure is rolling ball body; Each rolling ball body is fixed by independent spheroid cover.

As preferred version further, described rolling element is made up of 3-5 rolling structure.

As preferred version further, the spacing between two adjacent rolling structures is 0.1mm-0.3mm.

Beneficial effect

Compared with prior art, a kind of segmentation rolling body type of the present invention is without circle bearing structure, rolling element is made up of some connected rolling structures, multiple rolling structures form kinetoplast jointly, each rolling structure can rotate separately, multiple rolling structures are jointly stressed, avoid single rolling element due to stuck or damage and the phenomenon that cannot rotate, multiple rolling structures, one of them damage or stuck, other rolling structure still can be rotated further, keep normal work, lubricant oil can be injected in the gap having between multiple rolling structures, reduce wearing and tearing, also can hold the foreign material or the dust that accumulate for a long time, avoid foreign material or dust to fly in other precision equipment parts, cause larger damage,

Rolling structure is needle roller body or rolling ball body, and these two kinds of common structures can meet the use under multiple condition substantially;

Rolling element is made up of 3-5 rolling structure, both can meet the structure of multiple rolling structures, also has enough clearance space conditions to hold foreign material and dust;

Spacing between two adjacent rolling structures is 0.1mm-0.3mm, guarantees the compact type of its structure itself, and excessive spacing can cause the link that connects adjacent two rolling structures to be subject to excessive torsion.

A kind of segmentation rolling body type of the present invention, without circle bearing structure, by the structure of segmented, improves rolling structure in the past, has stronger wear resistance and adaptability.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Wherein, 1-needle roller groove, 2-retainer, 3-rolling structure.

Embodiment

Describe the preferred technical solution of the present invention in detail below in conjunction with accompanying drawing.

As shown in the figure, a kind of segmentation rolling body type without circle bearing structure, comprise the retainer 2 with some continuous needle roller grooves 1, and be arranged on the rolling element in needle roller groove 1, described rolling element is made up of some connected rolling structures 3; Some rolling structures 3 connect side by side.

Described rolling structure 3 is needle roller body.

Described rolling structure 3 is rolling ball body.

Described rolling element is made up of 3-5 rolling structure 3.

Spacing between two adjacent rolling structures 3 is 0.1mm-0.3mm.

A kind of segmentation rolling body type of the present invention is without circle bearing structure, come choice for use needle roller body or rolling ball body according to actual working environment, in the situation that working environment more totally seals, can use needle roller body, under this environment, there is no dust and foreign material, the structural bearing capacity of needle roller body is greater than rolling ball body, can keep working life more of a specified duration.

And comparing under exposed environments, choice for use rolling ball body, uses the surface of contact of rolling ball body and exterior mechanical parts relatively little, and it rotates the obstruct that is not vulnerable to foreign material or dust granule, can avoid significantly wearing and tearing, reserves larger space.

Also the collocation mounting type that can select needle roller body and rolling ball body to mix under common working environment, can keep like this needle roller body and rolling ball body jointly a little, but need more manufacturing process.

Claims

1. segmentation rolling body type, without a circle bearing structure, comprises the retainer (2) with some continuous needle roller grooves (1), and is arranged on the rolling element in needle roller groove (1), it is characterized in that: described rolling element is made up of some connected rolling structures (3).

2. a kind of segmentation rolling body type according to claim 1, without circle bearing structure, is characterized in that: described rolling structure (3) is needle roller body.

3. a kind of segmentation rolling body type according to claim 1, without circle bearing structure, is characterized in that: described rolling structure (3) is rolling ball body.

4. a kind of segmentation rolling body type according to claim 1, without circle bearing structure, is characterized in that: described rolling element is made up of 3-5 rolling structure (3).

5. a kind of segmentation rolling body type according to claim 1, without circle bearing structure, is characterized in that: the spacing between adjacent two rolling structures (3) is 0.1mm-0.3mm.