CN201982516U

CN201982516U - Roller bearing cage

Info

Publication number: CN201982516U
Application number: CN2011201214921U
Authority: CN
Inventors: 杨龙; 杜啸啸
Original assignee: LUOYANG MEIHANG AUTOMOBILE PARTS CO Ltd
Current assignee: LUOYANG MEIHANG AUTOMOBILE PARTS CO Ltd
Priority date: 2011-04-22
Filing date: 2011-04-22
Publication date: 2011-09-21
Anticipated expiration: 2021-04-22

Abstract

A roller bearing cage relates to the field of bearings, and comprises a cage body with a plurality of pockets, wherein grooves are arranged on all the inner walls of the pockets corresponding to the outer cylindrical surfaces of the rollers, and the openings at the two ends of the grooves correspond to the upper and the lower end surfaces of the cage body respectively; and the cage can enable the surfaces of the rollers to be effectively lubricated during the working of the bearing, so as to prevent the running service life of the bearing from being shortened due to the excessively unlubricated rolling of the rollers.

Description

A kind of roller bearing retainer

[technical field]

The utility model relates to field of bearings, especially relates to a kind of roller bearing retainer that is used for roller bearing.

[background technique]

Known, retainer is an important component part of bearing, it mainly acts on is that a plurality of rolling elements with in the bearing are equally spaced, and drives a plurality of rolling elements and roll on correct raceway simultaneously, runs foul of each other and rubs to prevent to produce between a plurality of rolling elements when the bearing working; With the segmented retainer is example: bearing is under normal operative condition, installed and the influence of working strength, retainer in the bearing can be subjected to bigger impact force, if run into the inadequate situation of rolling element surface lubrication again, retainer very easily deforms or fracture phenomena because of frictional force is excessive, promptly finally causes bearing to scrap because of the drought rolling of crossing of rolling element; At present, bearing generally is divided into ball bearing and roller bearing by its inner rolling element pattern; With regard to roller bearing, it generally is the surface that the grease that will be used to lubricate earlier is coated on a plurality of rollers respectively uniformly, a plurality of rollers is assembled to respectively in the corresponding retainer pocket hole, and finally is assembled into bearing; Because the pocket hole inwall that existing retainer contacts with roller is even surface, therefore, such coating method very easily causes the grease of roller surface to be positioned at retainer in bearing working and scrapes stripping in the edge in the retainer pocket hole of two ends end face up and down, and can't carry out effective lubricating to the roller in the retainer pocket hole, thereby very easily make roller produce rigid friction at the long-time inwall that rolls back and retainer pocket hole, not only influence the running life of bearing, but also very easily caused bearing to scrap.

[summary of the invention]

In order to overcome the deficiency in the background technique, the utility model discloses a kind of roller bearing retainer, described retainer can make the roller surface in the bearing obtain effective lubricating in bearing working, thereby has avoided bearing to cross the phenomenon generation that the drought rolling influences the reduction of bearing operation life-span because of roller.

To achieve these goals, the utility model adopts following technological scheme:

A kind of roller bearing retainer, described retainer comprise the retainer body that is provided with a plurality of pockets hole; The inwall of the corresponding roller outer cylinder in described pocket hole is equipped with groove, and the corresponding respectively retainer body end face at two ends up and down that is positioned at of groove openings at two ends.

Described roller bearing retainer, the four sides inwall in described pocket hole is equipped with groove, and the corresponding respectively retainer body end face at two ends up and down that is positioned at of groove openings at two ends.

Owing to adopt aforesaid technological scheme, the utlity model has following beneficial effect:

Described roller bearing retainer, by effectively having avoided roller in retainer during high speed scroll at the groove of pocket hole inwall setting, the pocket bore edges is to the stripping of scraping of roller surface lubricant grease, thereby makes the roller in the roller bearing have preferable lubricating condition; When roller bearing runs up, the lubricant grease that described groove not only can make roller surface flow in the groove along the opening of groove, the roller surface that is positioned at the pocket hole is carried out fully lubricated, but also can play the effect of effective storage lubricant grease; In addition, described groove has also reduced the area of contact between roller and the retainer pocket hole, has effectively reduced frictional force, makes the on-stream vibrating noise that reduced of roller bearing after the assembling, improve the stationarity of running, thereby prolonged the running life of roller bearing.

[description of drawings]

Fig. 1 is a schematic representation of the present utility model.

Among the figure: 1, retainer body; 2, pocket hole; 3, groove.

[embodiment]

Can explain the utility model in more detail by the following examples, open the purpose of this utility model is intended to protect all changes and improvements in the utility model scope, and the utility model is not limited to the following examples;

1 described roller bearing retainer in conjunction with the accompanying drawings, described retainer comprise the retainer body 1 that is provided with many outer pocket holes 2; The inwall of a plurality of pockets hole 2 corresponding roller outer cylinders is equipped with groove 3 on the described retainer body 1, and the corresponding respectively end face that is positioned at retainer body two ends about in the of 1 of groove 3 openings at two ends on 2 inwalls of pocket hole, be that roller is when high speed scroll, lubricant grease on the roller outer cylinder can flow into groove 3 inside by groove 3 openings at two ends, thereby the roller outer cylinder that contacts with pocket hole 2 inwalls is carried out lubricated fully; For further improving the lubricating function of described retainer to roller, can on the inwall of the four sides in pocket hole 2, be provided with groove 3, the corresponding respectively end face that is positioned at retainer body two ends about in the of 1 of while groove 3 openings at two ends, because the outer cylinder of corresponding roller and pocket hole 2 inwalls of two ends end face all are provided with groove 3, so when roller rolls, the lubricant grease that is coated with on the outer cylinder of roller and the two ends end face can both flow in the groove 3 by corresponding grooves 3 openings at two ends, has promptly reached the effect that can all be lubricated each outer surface of roller.

When implementing roller bearing retainer described in the utility model, only need described retainer is assembled in the corresponding roller bearing, promptly can be when this roller bearing runs up, the roller surface that contacts pocket hole 2 inwalls is carried out lubricated fully by the lubricant grease of inserting in advance or flowing in the described groove 3, simultaneously, described groove 3 has also reduced the area of contact between roller and the pocket hole 2, effectively reduced retainer suffered frictional force in bearing runs up, thus corresponding running life that prolongs roller bearing.

Carefully not stating in the above content is prior art partly, does not state so run business into particular one.

Claims

1. roller bearing retainer, described retainer comprises the retainer body (1) that is provided with a plurality of pockets hole (2), it is characterized in that: the inwall of the corresponding roller outer cylinder in described pocket hole (2) is equipped with groove (3), and groove (3) openings at two ends respectively correspondence be positioned at retainer body (1) end face at two ends up and down.

2. roller bearing retainer according to claim 1 is characterized in that: the four sides inwall in described pocket hole (2) is equipped with groove (3), and groove (3) openings at two ends respectively correspondence be positioned at retainer body (1) end face at two ends up and down.