CN203098582U

CN203098582U - Needle roller thrust bearing cage structure

Info

Publication number: CN203098582U
Application number: CN 201320051715
Authority: CN
Inventors: 刘文海
Original assignee: CHANGZHOU DONGFENG BEARING Co Ltd
Current assignee: CHANGZHOU DONGFENG BEARING Co Ltd
Priority date: 2013-01-30
Filing date: 2013-01-30
Publication date: 2013-07-31
Anticipated expiration: 2023-01-30

Abstract

The utility model discloses a needle roller thrust bearing cage structure. The structure comprises a needle roller, an inner cage and an outer cage, wherein inner cage orifices and outer cage orifices, which correspond to each other, are arranged on the inner cage and the outer cage; the inner and outer edges of the inner cage are provided with inner cage inner and outer flanges; the inner and outer edges of the outer cage are also provided with outer cage inner and outer flanges; the inner cage inner and outer flanges of the inner cage respectively extend into and are wrapped by the outer cage inner and outer flanges of the outer cage; the needle roller is installed between each orifice of the inner cage and each orifice of the outer cage; the outer cage orifice on at least one end face of the outer cage outer flange extends to the outer cage outer flange; and the extended segment of the inner cage outer flange is inserted into the outer cage orifice. The structure avoids dislocation of the cages and prolongs the service life.

Description

A kind of needle roller thrust bearing retainer structure

Technical field

The utility model relates to a kind of plane needle roller thrust bearing, is particularly useful for bearing the plane needle roller thrust bearing structure of big load.

Background technique

Traditional plane thrust needle roller thrust bearing retainer structure is that an interior retainer and outer retainer are wrapped in needle roller wherein, by interior retainer is fixed in outer retainer rib roll extrusion enlarging, but this structure because retainer is influenced by two opposite frictional force of effect is easy to take place inside and outside retainer mutual dislocation and causes damage of product, has reduced working life in the bearing rotary course.

Summary of the invention

The purpose of this utility model is to have avoided inside and outside retainer generation inconsistent phenomenon by spacing mode with two retainers are spacing together, improves the needle roller thrust bearing retainer structure in working life.

In order to achieve the above object, the technical solution of the utility model is: a kind of needle roller thrust bearing retainer structure, comprise needle roller, interior retainer and outer retainer, interior retainer and outer retainer are equipped with corresponding interior retainer fenestra and outer retainer fenestra, the outer rib of interior retainer inner retaining side that dig all oriented the same side of the inside edge of interior retainer and outer edge and interior retainer, the outer rib of outer retainer inner retaining side that dig the also oriented the same side of the inside edge of outer retainer and outer edge and outer retainer, the outer rib of the interior retainer inner retaining side of interior retainer and interior retainer stretches in the outer retainer inner retaining side and the outer rib of outer retainer of outer retainer respectively, and respectively by outer retainer inner retaining side and the outer rib parcel of outer retainer, needle roller is contained between the fenestra of the fenestra of retainer in each and outer retainer, and needle roller can rotate, its innovative point is: the outer rib of described outer retainer has at least the outer retainer fenestra on the end face to extend to the outer rib of outer retainer, and insert in the outer retainer fenestra extension of the outer rib of interior retainer.

Adopt said structure: because the back plane thrust-bearing when rotating retainer no matter in retainer still be outside retainer be subjected to bearing respectively and rotate rightabout frictional force, this frictional force converts moment of torsion to and constantly impels two retainers to produce the trend that is separated from each other, because the outer rib of described outer retainer has at least the outer retainer fenestra on the end face to extend to the outer rib of outer retainer, insert in the outer retainer fenestra extension of the outer rib of interior retainer, therefore in having prevented, outer retainer mutual dislocation, this structure also has the effect of two the retainer fenestras in accurate location simultaneously, make the gap uniformity of retainer fenestra and needle roller, improved the intensity of retainer, also be greatly improved the working life of plane needle roller thrust bearing.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the right elevation of Fig. 1.

Embodiment

The embodiment who provides below in conjunction with accompanying drawing is described in further detail the utility model.

Referring to Fig. 1, shown in 2, a kind of needle roller thrust bearing retainer structure, comprise needle roller 1, interior retainer 2 and outer retainer 3, interior retainer 2 and outer retainer 3 are equipped with corresponding interior retainer fenestra 2-1 and outer retainer fenestra 3-1, the outer rib 2-3 of interior retainer inner retaining side 2-2 that dig all oriented the same side of the inside edge of interior retainer 2 and outer edge and interior retainer, the outer rib 3-3 of outer retainer inner retaining side 3-2 that dig the also oriented the same side of the inside edge of outer retainer 3 and outer edge and outer retainer, the outer rib 2-3 of the interior retainer inner retaining side 2-2 of interior retainer 2 and interior retainer stretches in the outer retainer inner retaining side 3-2 and the outer rib 3-3 of outer retainer of outer retainer 3 respectively, and respectively by outer retainer inner retaining side 3-2 and the outer rib 3-3 parcel of outer retainer, needle roller 1 is contained between the fenestra 3-1 of the fenestra 2-1 of retainer 2 in each and outer retainer 3, and needle roller 1 can rotate, the outer rib 3-3 of described outer retainer has at least the outer retainer fenestra 3-1 on the end face to extend to the outer rib 3-3 of outer retainer, and insert in the outer retainer fenestra 3-1 extension of the outer rib 2-3 of interior retainer.

Referring to Fig. 1, shown in 2, the working principle that the utility model uses be plain thrust bearing when rotating retainer no matter in retainer 2 or outside retainer 3 be subjected to bearing respectively and rotate rightabout frictional force, this frictional force converts moment of torsion to and constantly impels two retainers to produce the trend that is separated from each other, because the outer rib 3-3 of described outer retainer has at least the outer retainer fenestra 3-1 on the end face to extend to the outer rib 3-3 of outer retainer, insert in the outer retainer fenestra 3-1 extension of the outer rib 2-3 of interior retainer, thereby two retainer mutual dislocation have been prevented, and the gap is very little between the extension of the outer rib 2-3 of interior retainer and the outer retainer fenestra 3-1, the effect that also has two the retainer fenestras in accurate location simultaneously, make the gap uniformity of retainer fenestra and needle roller 1, improved the intensity of retainer, also be greatly improved the working life of plane needle roller thrust bearing.

Claims

1. needle roller thrust bearing retainer structure, comprise needle roller (1), interior retainer (2) and outer retainer (3), interior retainer (2) and outer retainer (3) are equipped with corresponding interior retainer fenestra (2-1) and outer retainer fenestra (3-1), the outer rib (2-3) of interior retainer inner retaining side (2-2) that dig all oriented the same side of the inside edge of interior retainer (2) and outer edge and interior retainer, the outer rib (3-3) of outer retainer inner retaining side (3-2) that dig the also oriented the same side of the inside edge of outer retainer (3) and outer edge and outer retainer, the outer rib (2-3) of the interior retainer inner retaining side (2-2) of interior retainer (2) and interior retainer stretches in the outer retainer inner retaining side (3-2) and the outer rib (3-3) of outer retainer of outer retainer (3) respectively, and respectively by outer retainer inner retaining side (3-2) and outer rib (3-3) parcel of outer retainer, needle roller (1) is contained between the fenestra (3-1) of the fenestra (2-1) of retainer (2) in each and outer retainer (3), and needle roller (1) can rotate, it is characterized in that: the outer rib (3-3) of described outer retainer has at least the outer retainer fenestra (3-1) on the end face to extend to the outer rib (3-3) of outer retainer, and insert in the outer retainer fenestra (3-1) extension of the outer rib (2-3) of interior retainer.