CN2112031U

CN2112031U - Needle roller bearing for a universal joint

Info

Publication number: CN2112031U
Application number: CN 91202827
Authority: CN
Inventors: 廖益龙
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-02-21
Filing date: 1991-02-21
Publication date: 1992-08-05

Abstract

A universal joint needle bearing is mainly characterized in that a cross-shaped oil passage 32 with a round hole 10 at the center is arranged on the bottom end face 30 of a hole of an inner shell of the bearing, wherein a round groove 20 is symmetrically arranged at the four corners of the cross-shaped oil passage to the inner shell hole diameter wall according to the center, and a needle roller 31 is arranged on the round groove 20.

Description

Roller pin bearing of gymbal

The utility model relates to and a kind ofly has oil leab and be used for needle bearing on the universal joint.

Universal joint is a kind of movable joint, and needle bearing is housed on it usually, makes two pushing shafts can adapt to torsion angle sleekly, universal joint is except with the passing of time use weares and teares, be difficult at ordinary times breaking down,, should often add the lubricant oil of annotating appropriateness with regard to maintenance work.

General lubricant oil add notes, be that the ball bolt from universal joint body edge end injects, it is suitable lubricated that needle bearing is obtained.And general needle bearing accept lubricated after because the unlubricated oil duct of its inner casing, lubricant oil is difficult for entering the needle roller of needle bearing, needle roller is easily produced with its cross axle rub.

Again, the shell of general traditional cross axle and needle bearing assembling is placed on cross axle according to circumference by arranging after the stickiness of lubricating cream is clung most needle roller posts mostly, is inserted in shell again.This kind fit needs skillful skill, just can not push up oblique needle roller post, and the lubricating cream that is adhered to easily overflows unnecessary amount if amount is more when needle roller is inserted shell, cause cost, and man-hour is all high and complicated.

The purpose of this utility model provides a kind ofly guarantees that the needle roller of needle bearing and the cross axle of needle roller and universal joint obtain preferable lubrication effect, and can be assemblied in the needle bearing on the cross axle of universal joint easily.

The technical solution of the utility model is central authorities to be set be the cross oil duct of circular hole on the inner casing bottom end of bearing, and wherein the quadripolar corners of cross oil duct is symmetrical arranged a circular chase to inner casing aperture wall according to the center.Needle roller on circular chase, and constitutes structure of the present utility model according to circumferential arrangement.So structure makes lubricant oil flow on the needle roller of needle bearing along the cross oil duct.

Further set forth the utility model below in conjunction with embodiment and accompanying drawing.

Fig. 1 is the floor map of general universal joint.

Fig. 2 is the part exploded view in addition of universal joint and the schematic perspective view of the mutual assembly of two pushing shafts thereof.

Fig. 3 is a schematic perspective view of the present utility model.

Fig. 4 can demonstrate the circular chase schematic representation of needle roller and cross oil duct and outer shroud for the inner casing bottom end of the utility model needle bearing.

As shown in Figure 1, wherein the A part shows the plane generalized section that oil circuit flows to for the utility model needle bearing device on knuckle centre.

Consult Fig. 2, the cross axle 11 of general universal joint 1 is inserted in leakproof ring 2, be inserted in needle bearing 3 then, buckle into ring-type spring folder 4 on needle bearing 3, and two pushing shafts 5 being two forked circular holes 51, is needle bearing 3 sockets that are institute's socket on the cross axle 11 of cross and universal joint 1, so, two pushing shafts 5 are borrowed the needle roller 31 of the marshalling that is provided with on the round wall periphery on the inwall of needle bearing 3, obtain slick and sly adaptation windup-degree.

The inner casing bottom end 30 of the utility model needle bearing 3 be provided with central authorities for the cross oil duct 32(of circular hole 10 as shown in Figure 3) an and circular chase 20, needle roller 31 is arranged on the circular chase 20, (as Fig. 3, shown in Figure 4), when lubricant oil injects from the ball bolt, lubricant oil enters each circular hole 12 of the cross axle 11 of universal joint 1, ooze out into the inner casing (consulting Fig. 2) of needle bearing 3 by circular hole 12, infiltrate the needle roller 31 of needle bearing 3 respectively through cross oil duct 32 and circular chase 20, lubricated universal joint 11 when revolution just can make the needle roller 31 of needle bearing 3 and the cross-axis head 11 of socket obtain preferable lubrication effect.

Circular chase 20 on the above-mentioned needle bearing 3 is that cross oil duct 32 quadripolar corners form according to the center symmetric design at wall place, inner casing aperture, the furrow width of this circle chase 20 is slightly larger than the radial diameter of needle roller 31, so with needle roller 31 device when the inner casing of needle bearing 3, put according to circumferential arrangement, wherein, one of this needle roller 31 is rectified the propping up and the adhesion of lubricant oil of furrow width of the circular chase 20 of feeling better, and can not produce the phenomenon that needle roller 31 comes off.

The utlity model has oil leab and be used for the needle bearing of universal joint, solved needle roller and cross axle defective easy to wear on the universal joint, can not only reach better lubricant effect, and assembling easily, reduce work hours, and reduced production cost.

Claims

1, a kind of needle bearing of universal joint, it is characterized in that being provided with on the inner casing bottom end (30) of bearing (3) central authorities and be the cross oil duct (32) of circular hole (10), wherein the quadripolar corners at cross oil duct (32) is symmetrical arranged a circular chase (20) to inner casing aperture wall according to the center, needle roller (31) according to circumferential arrangement on circular chase (20).

2, the needle bearing of a kind of universal joint as claimed in claim 1 is characterized in that the furrow width of circular chase (20) is slightly larger than the radial diameter of needle roller (31).