CN211175024U

CN211175024U - Needle bearing retainer capable of bearing axial force

Info

Publication number: CN211175024U
Application number: CN201922017673.9U
Authority: CN
Inventors: 潘志顺
Original assignee: Changzhou Dongfeng Bearing Co ltd
Current assignee: Changzhou Dongfeng Bearing Co ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-08-04
Anticipated expiration: 2029-11-20

Abstract

The utility model relates to a can bear bearing holder of axial force, including the holder body, a plurality of kingpin windows that are used for installing the kingpin have evenly been seted up on the holder body, the holder body includes cyclic annular back timber and cyclic annular floorbar, the diameter of cyclic annular floorbar is greater than the diameter of cyclic annular back timber, cyclic annular floorbar is used for supporting kingpin bottom face, cyclic annular back timber is used for supporting kingpin top face, be connected through a plurality of stands between cyclic annular back timber and the cyclic annular floorbar, the stand lateral part has the caulking groove that is used for supporting the kingpin lateral part, the bottom face of two relative caulking grooves and cyclic annular back timber, form kingpin window between the top face of cyclic annular floorbar. The needle bearing retainer capable of bearing the axial force can bear dynamic load and static load through the special matching of the annular top beam, the annular bottom beam and the upright column, and can bear certain axial force, and the axial force of the shaft and the gear hole directly acts on the needle roller end face, so that the service life of the retainer is greatly prolonged.

Description

Needle bearing retainer capable of bearing axial force

Technical Field

The utility model relates to a bearing technical field especially relates to a can bear bearing holder of axial force.

Background

As shown in fig. 1, a conventional needle bearing cage includes a cage body 1 ' and a needle roller window 2 ' formed along a circumferential direction of the cage body 1 ', and a needle roller 3 ' is installed in the needle roller window 2 '. The needle roller bearing is generally used for a gearbox and is a centripetal needle roller bearing which does not bear axial force, so that the needle roller bearing is easy to fail.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can bear the dynamic load, also can bear the static load, can also bear the bearing holder of axial force simultaneously.

The utility model discloses a realize through following technical scheme: the needle roller bearing retainer capable of bearing axial force comprises a retainer body, wherein a plurality of needle roller windows used for installing needle rollers are uniformly formed in the retainer body, the retainer body comprises an annular top beam and an annular bottom beam, the diameter of the annular bottom beam is larger than that of the annular top beam, the annular bottom beam is used for supporting the bottom end face of the needle rollers, the annular top beam is used for supporting the top end face of the needle rollers, the annular top beam is connected with the annular bottom beam through a plurality of stand columns, the side portions of the stand columns are provided with caulking grooves used for supporting the side portions of the needle rollers, and the needle roller windows are formed between two opposite caulking grooves and the bottom end face of the annular top beam and the top end face of.

Preferably, the inner end face of the upright column is flush with the inner end face of the annular top beam, the outer end face of the upright column is flush with the outer end face of the annular bottom beam, the width of the outer end face of the upright column is larger than that of the inner end face of the upright column, and the outer end face of the upright column is provided with an arc-shaped oil groove which is recessed inwards along the length direction of the outer end face of the upright column.

In order to avoid the roller pins from falling out of the roller pin windows, the side parts of the upright posts are provided with trapezoidal caulking grooves.

For convenience in processing and assembly, the height of the top end surface of the upright column is lower than that of the bottom end surface of the annular top beam, and the height of the bottom end surface of the upright column is higher than that of the top end surface of the annular bottom beam.

The utility model has the advantages that: the needle bearing retainer capable of bearing the axial force can bear dynamic load and static load through the special matching of the annular top beam, the annular bottom beam and the upright column, and can bear certain axial force, and the axial force of the shaft and the gear hole directly acts on the needle roller end face, so that the service life of the retainer is greatly prolonged.

Drawings

FIG. 1 is a schematic structural view of a needle bearing cage in the prior art;

fig. 2 is a schematic perspective view of the needle bearing retainer capable of bearing axial force according to the present invention;

fig. 3 is a top view of the needle bearing retainer of the present invention capable of bearing axial force;

fig. 4 is the structure diagram of the needle roller bearing cage capable of bearing axial force after being fully loaded with needle rollers.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined.

As shown in fig. 2 and 3, the needle bearing retainer capable of bearing axial force comprises a retainer body, wherein a plurality of needle roller windows for mounting needle rollers are uniformly formed in the retainer body, the retainer body comprises an annular top beam 4 and an annular bottom beam 5 which are coaxially arranged, the diameter of the annular bottom beam 5 is larger than that of the annular top beam 4, the annular bottom beam 5 is used for supporting the bottom end face of the needle rollers, the annular top beam 4 is used for supporting the top end face of the needle rollers, the annular top beam 4 is connected with the annular bottom beam 5 through a plurality of upright posts 6, the side portions of the upright posts 6 are provided with trapezoidal caulking grooves 8 for supporting the side portions of the needle rollers, and the needle roller windows 9 are formed between the bottom end faces of the two opposite caulking grooves 8 and the annular top beam 4 and between the top end faces of.

Specifically, the inner end surface of the upright column 6 is flush with the inner end surface of the annular top beam 4, the outer end surface of the upright column 6 is flush with the outer end surface of the annular bottom beam 5, the width of the outer end surface of the upright column 6 is larger than that of the inner end surface of the upright column 6, namely, the horizontal section of the upright column 6 is approximately in a T shape, and the outer end surface of the upright column 6 is provided with an inward-concave arc-shaped oil groove 7 along the length direction of the outer end surface; in addition, the height of the top end surface of the upright post 6 is lower than that of the bottom end surface of the annular top beam 4, and the height of the bottom end surface of the upright post 6 is higher than that of the top end surface of the annular bottom beam 5.

As shown in fig. 4, when the needle rollers 3 are installed in the needle roller windows, the top ends and the bottom ends of the needle rollers 3 are partially exposed and are not completely shielded by the annular top beams 4 and the annular bottom beams 5, so that the inner sides and the outer sides thereof can bear a certain axial force.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "side", "end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Finally, it should be noted that: the above embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a can bear needle bearing holder of axial force, includes the holder body, evenly set up a plurality of kingpin windows that are used for installing the kingpin on the holder body, its characterized in that: the retainer body comprises an annular top beam and an annular bottom beam, the diameter of the annular bottom beam is larger than that of the annular top beam, the annular bottom beam is used for supporting the bottom end face of the roller pins, the annular top beam is used for supporting the top end face of the roller pins, the annular top beam is connected with the annular bottom beam through a plurality of stand columns, the side portions of the stand columns are provided with caulking grooves used for supporting the side portions of the roller pins, and roller pin windows are formed between the two opposite caulking grooves and the bottom end face of the annular top beam and the top end face of the annular bottom beam.

2. The needle bearing cage capable of withstanding axial forces of claim 1, wherein: the inner end surface of the upright column is flush with the inner end surface of the annular top beam, and the outer end surface of the upright column is flush with the outer end surface of the annular bottom beam.

3. The needle bearing cage capable of withstanding axial forces of claim 2, wherein: the width of the outer end face of the upright column is larger than that of the inner end face of the upright column, and the outer end face of the upright column is provided with an inward-concave arc-shaped oil groove along the length direction of the outer end face of the upright column.

4. The needle bearing cage capable of withstanding axial forces of claim 1, wherein: the side part of the upright post is provided with a trapezoidal caulking groove.

5. The needle bearing cage capable of withstanding axial forces of claim 1, wherein: the height of the top end surface of the upright column is lower than that of the bottom end surface of the annular top beam, and the height of the bottom end surface of the upright column is higher than that of the top end surface of the annular bottom beam.