CN215720253U

CN215720253U - Needle bearing device

Info

Publication number: CN215720253U
Application number: CN202022320263.4U
Authority: CN
Inventors: 郑小平
Original assignee: Anhui Qianxi Precise Bearing Manufactory Co ltd
Current assignee: Anhui Qianxi Precise Bearing Manufactory Co ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2022-02-01
Anticipated expiration: 2030-10-16

Abstract

The utility model discloses a needle roller bearing device which comprises a bearing outer ring, wherein needle rollers are uniformly sleeved in the bearing outer ring; the bearing outer ring is internally sleeved with a bearing inner ring, the needle roller is abutted between the bearing outer ring and the bearing inner ring, at least one end of the bearing outer ring is uniformly provided with balls corresponding to the end part of the needle roller, and the balls are abutted between the bearing outer ring and the bearing inner ring to form a needle roller bearing device with a ball support; a ball groove is arranged between the bearing outer ring and the bearing inner ring; the ball is arranged in the ball groove and is abutted against the bearing outer ring and the bearing inner ring; the utility model provides a needle bearing device, which is characterized in that balls are additionally arranged on a needle bearing, so that the needle bearing has the good transmission effect of the ball bearing, and has the high bearing capacity effect of the needle bearing.

Description

Needle bearing device

Technical Field

The utility model relates to the technical field of bearings, in particular to a needle bearing device.

Background

Needle bearing (needle bearing) is a roller bearing with cylindrical rollers that are both thin and long with respect to their diameter. Such rollers are called needles. The bearing has high load bearing capacity despite the small section, the needle roller bearing is provided with thin and long rollers (the diameter D of the rollers is less than or equal to 5mm, the L/D is more than or equal to 2.5, and L is the length of the rollers), so the radial structure is compact, the inner diameter size and the load capacity are the same as other types of bearings, the outer diameter is the minimum, and the needle roller bearing is particularly suitable for a bearing structure with limited radial installation size.

According to different use occasions, a bearing without an inner ring or a rolling needle and retainer assembly can be selected, the surface of a shaft neck and the surface of a shell hole which are matched with the bearing are directly used as the inner rolling surface and the outer rolling surface of the bearing, and in order to ensure that the load capacity and the running performance are the same as those of a bearing with a ferrule, the hardness, the processing precision and the surface quality of the surface of a raceway of the hole of the shaft or the shell are similar to those of the raceway of a bearing ferrule. Such bearings can only withstand radial loads;

the existing needle bearing structure is stiff, and particularly has poor transmission effect relative to a ball bearing, so that the inventor provides a needle bearing device by combining various factors.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a needle bearing device to solve the above problems.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

a needle bearing device comprises a bearing outer ring, wherein needle rollers are uniformly sleeved in the bearing outer ring; the bearing inner ring is sleeved in the bearing outer ring, the needle roller is abutted between the bearing outer ring and the bearing inner ring, the ball bearings are uniformly arranged at least one end of the bearing outer ring corresponding to the end part of the needle roller and abutted between the bearing outer ring and the bearing inner ring to form a needle roller bearing device with a ball bearing support,

as a further scheme of the utility model: a ball groove is arranged between the bearing outer ring and the bearing inner ring; the ball is arranged in the ball groove and is abutted against the bearing outer ring and the bearing inner ring;

as a further scheme of the utility model: a ball retainer is arranged between the bearing outer ring and the bearing inner ring and on one side corresponding to the balls and is used for keeping the balls synchronous in the rolling process;

as a further scheme of the utility model: the outer end of one side, corresponding to the ball, between the bearing outer ring and the bearing inner ring is provided with a rubber sealing element for oil sealing and dust prevention;

as a further scheme of the utility model: balls are uniformly arranged on one end of the bearing outer ring corresponding to the end part of the needle roller, the needle roller is conical, and the conical tip faces one side of the balls; thereby facilitating oil sealing.

As a further scheme of the utility model: the two ends of the bearing outer ring are uniformly provided with balls corresponding to the end parts of the roller pins, the two ends of the roller pins are conical, and the conical tips face one side of the balls; thereby facilitating oil sealing.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model provides a needle bearing device, which is characterized in that balls are additionally arranged on a needle bearing, so that the needle bearing has the good transmission effect of the ball bearing, and has the high bearing capacity effect of the needle bearing.

Drawings

Fig. 1 is a schematic structural view of a needle bearing device.

Fig. 2 is a schematic view of a structure of a needle roller in a needle roller bearing device.

FIG. 3 is a schematic view of a further embodiment of a needle bearing assembly;

fig. 4 is a schematic view of a needle roller in a further embodiment of a needle bearing assembly.

In the figure: 1. a bearing outer ring; 2. a bearing inner ring; 3. a rubber seal; 4. a ball groove; 5. a ball bearing; 6. a ball retainer; 7. and (4) rolling needles.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The first embodiment is as follows: referring to fig. 1-2, a needle bearing device includes a bearing outer ring 1, and needles 7 are uniformly sleeved in the bearing outer ring 1; a bearing inner ring 2 is sleeved in the bearing outer ring 1, the roller pins 7 are abutted between the bearing outer ring 1 and the bearing inner ring 2, balls 5 are uniformly arranged at one end of the bearing outer ring 1 corresponding to the end portions of the roller pins 7, the balls 5 are abutted between the bearing outer ring 1 and the bearing inner ring 2 to form a roller pin bearing device supported by the balls 5, and a ball groove 4 is arranged between the bearing outer ring 1 and the bearing inner ring 2; the balls 5 are arranged in the ball grooves 4 and are abutted against the bearing outer ring 1 and the bearing inner ring 2; a ball retainer 6 is arranged between the bearing outer ring 1 and the bearing inner ring 2 at one side corresponding to the balls 5, and a rubber sealing element 3 is arranged at the outer end of one side corresponding to the balls 5 between the bearing outer ring 1 and the bearing inner ring 2 for oil sealing and dust prevention in the rolling process of the balls 5; the bearing outer ring 1 is only provided with balls 5 uniformly at one end corresponding to the end part of the needle roller 7, the needle roller 7 is conical, and the conical tip faces one side of the balls 5; oil sealing is facilitated;

example two: referring to fig. 3-4, the difference between the present embodiment and the first embodiment is:

the two ends of the bearing outer ring 1 are uniformly provided with balls 5 corresponding to the end parts of the roller pins 7, the two ends of the roller pins 7 are conical, and the conical tips face one side of the balls 5; thereby facilitating oil sealing.

The working principle of the utility model is as follows: the roller bearing has the advantages that the roller bearings are additionally arranged on the roller bearings, so that the roller bearings have the good transmission effect of the roller bearings, and the roller bearings have the high bearing capacity effect of the roller bearings.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, and the scope of protection is still within the scope of the utility model.

Claims

1. A needle bearing device comprises a bearing outer ring (1), and is characterized in that needle rollers (7) are uniformly sleeved in the bearing outer ring (1); the bearing inner ring (2) is sleeved in the bearing outer ring (1), the needle rollers (7) are abutted between the bearing outer ring (1) and the bearing inner ring (2), balls (5) are uniformly arranged at the end part, corresponding to the needle rollers (7), of at least one end of the bearing outer ring (1), and the balls (5) are abutted between the bearing outer ring (1) and the bearing inner ring (2), so that the needle roller bearing device with the ball (5) support is formed.

2. A needle bearing arrangement as claimed in claim 1, characterized in that a ball groove (4) is provided between the bearing outer ring (1) and the bearing inner ring (2); the balls (5) are arranged in the ball grooves (4) and are abutted against the bearing outer ring (1) and the bearing inner ring (2).

3. Needle bearing device according to claim 2, characterized in that a ball retainer (6) is arranged between the bearing outer ring (1) and the bearing inner ring (2) on the side corresponding to the balls (5).

4. A needle bearing arrangement as claimed in claim 3, characterized in that a rubber seal (3) is provided between the bearing outer ring (1) and the bearing inner ring (2) in correspondence of the outer end on the side of the balls (5).

5. A needle bearing arrangement according to any one of claims 1-4, characterized in that the bearing outer ring (1) is provided with balls (5) uniformly only at one end in correspondence with the end of the needle rollers (7), the needle rollers (7) being tapered with the taper towards the ball (5) side.

6. A needle roller bearing device according to any one of claims 1 to 4, characterized in that the bearing outer ring (1) is provided with balls (5) at both ends thereof corresponding to the ends of the needle rollers (7), and the needle rollers (7) are tapered at both ends thereof with the tapered ends thereof facing the balls (5).