CN201050552Y

CN201050552Y - Conical roller bearing retainer

Info

Publication number: CN201050552Y
Application number: CNU200720071349XU
Authority: CN
Inventors: 郭长建
Original assignee: C&U Group Ltd
Current assignee: C&U Group Ltd
Priority date: 2007-06-20
Filing date: 2007-06-20
Publication date: 2008-04-23
Anticipated expiration: 2017-06-20

Abstract

The utility model relates to a conical roller bearing retainer which comprises a retainer (40). The two sides of the middle of a girder (420) in the bearing retainer (40) are convex. The utility model has the advantages that retainer not only reduces friction, but also improves lubricant, and is advantageous to reduce frictional heating and energy loss.

Description

The tapered roller bearing retainer

Technical field

The utility model relates to a kind of tapered roller bearing, relates in particular to the retainer structure of this bearing.

Background technique

As seen from Figure 1:the single-row tapered roller bearing structure is made up of outer ring 1, inner ring 2, roller 3, and retainer 4; By Fig. 2 A, Fig. 2 B as seen:totally be frame type structure, along the circumferential direction be uniform-distribution with a plurality of taper fenestras 41 that surrounded by two beams 42, fenestra keeps certain contacting with roller. retainer play the effect of guiding and isolation roller; Bearing in the running roller rolls at the raceway of Internal and external cycle; Roller also will be around the revolution of running center-diameter in rotation; The running of roller again driving bearing retainer is rotated; Thereby cause roller and retainer to produce friction; Effect owing to centrifugal force when the bearing rotating speed is higher can produce bigger friction; Thereby reduce transmission efficiency and the life-span of bearing; Comparing conical bearing with ball bearing has the effect of significant raising bearing capacity; But its low transmission efficiency is again its outstanding shortcoming

Summary of the invention

The utility model technical issues that need to address have provided a kind of tapered roller bearing retainer, are intended to solve above-mentioned defective.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model comprises: retainer; The middle both sides of the beam in the described retainer are " protruding ".

Compared with prior art, the beneficial effects of the utility model are: not only having reduced friction and also having improved simultaneously lubricatedly, having helped reducing frictional heating and energy loss.

Description of drawings

Fig. 1 is an existing conventional tapered roller bearing structural drawing;

Fig. 2 A is a retainer structural drawing among Fig. 1;

Fig. 2 B is that the K of Fig. 2 A is to view;

Fig. 3 A is the utility model structural drawing;

Fig. 3 B is that the K of Fig. 3 A is to view;

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

By Fig. 3 A, Fig. 3 B as seen: the utility model comprises: retainer 40; The middle both sides of the beam 420 in the described retainer 40 are " protruding ";

One section the length of contacting of beam 420 and roller is 40% to 60% of roller length;

Protruding the degree of depth in the middle of the beam 420 is 0.3 to 1.2mm.

The utility model is that fenestra 410 shapes of retainer are changed, make convex in the middle of the straight beam with original retainer exactly, one section contacts with roller in the middle of keeping, keep certain clearance between two ends and roller, can reduce the contact length of retainer and roller like this, simultaneously owing to, help the timely input and the exchange of oiling agent in roller two ends roller and retainer gap, so not only having reduced friction and also having improved simultaneously lubricatedly, having helped reducing frictional heating and energy loss.

Claims

1. a tapered roller bearing retainer comprises: retainer (40); It is characterized in that: the middle both sides of the beam (420) in the described retainer (40) are " protruding ".

2. tapered roller bearing retainer according to claim 1 is characterized in that: one section the length of contacting of beam (420) and roller is 40% to 60% of roller length.

3. tapered roller bearing retainer according to claim 1 and 2 is characterized in that: protruding the degree of depth in the middle of the beam (420) is 0.3 to 1.2mm.