CN213270710U

CN213270710U - Roller combined bearing

Info

Publication number: CN213270710U
Application number: CN202021049291.0U
Authority: CN
Inventors: 毛子铃; 舒进明
Original assignee: Zhejiang Bom Precision Bearing Co ltd
Current assignee: Zhejiang Bom Precision Bearing Co ltd
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-05-25
Anticipated expiration: 2030-06-09

Abstract

The utility model discloses a gyro wheel combination bearing, including the inner circle, its characterized in that: the wheel shaft is integrally arranged on the inner ring, the front end of the wheel shaft is provided with a connector, and the front end of the connector is provided with an internal thread or an external thread used for being connected with adjacent parts. The utility model has the advantages of it is following and effect: through setting up the shaft of circle integration on the inner circle, can make this roller bearing and outside connection precision higher, effectively avoided causing the uncertain change of bearing inside crosstalk amount because of the cooperation error of bearing and shaft, guaranteed the effective work play of bearing. Meanwhile, the hobbing on the outer ring is coated with plastic, so that the contact area and the friction resistance of two materials are effectively increased, and the structure is more stable.

Description

Roller combined bearing

Technical Field

The utility model relates to a bearing technical field, in particular to gyro wheel combination bearing.

Background

In the roller bearing in the prior art, because the bearing inner ring is in interference fit with the shaft, and then the shaft is connected with the adjacent part through the bolt, the requirement of the bearing is difficult to meet due to the control of the interference fit amount when the bearing is installed and matched, and the shaft is easy to incline slightly when being connected with an external part, the installation precision of the bearing is reduced, so that the use flexibility of the bearing is reduced, the effective operation life is shortened, and the use reliability is difficult to ensure.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a gyro wheel combination bearing of high accuracy.

The above technical purpose of the present invention can be achieved by the following technical solutions: the roller combination bearing comprises an inner ring and an outer ring, wherein a wheel shaft is integrally arranged on the inner ring, a connector is arranged at the front end of the wheel shaft, and an internal thread or an external thread used for being connected with an adjacent part is arranged at the front end of the connector.

Further setting the following steps: the outer wall of the inner ring and the inner wall of the outer ring are both provided with annular grooves, and a plurality of balls are arranged between the annular grooves.

Further setting the following steps: the outer ring is located the both sides of ring channel and the other end that the relative connector on the inner circle all is provided with the seal groove, be provided with two relative sealing washers in the seal groove.

Further setting the following steps: the sealing ring comprises a main body, wherein a rolling groove is formed in one opposite side of the main body, and an outer convex layer is formed in the other opposite side of the main body.

Further setting the following steps: both sides of the front end of the connecting body are provided with cutting grooves.

Further setting the following steps: the outer wall of the outer ring is provided with a plurality of hobbing teeth arranged along the axial direction, and rubber coating rings are arranged outside the hobbing teeth.

Further setting the following steps: an inner ring groove is formed in the inner wall of the rubber wrapping ring, and a concave-convex layer is arranged on the surface of the inner ring groove.

To sum up, the utility model discloses following beneficial effect has: through setting up the shaft of circle integration including, realized the installation design of exempting from between bearing and the axle, effectively avoided causing the destruction of bearing effective work play because of the cooperation problem for this gyro wheel bearing is higher with outside connection accuracy, has reduced installation cost. Meanwhile, the hobbing on the outer ring is coated with plastic, so that the contact area between the outer ring and the plastic coating layer is increased, the friction resistance is increased, the structure is more stable, the mutual creeping between the outer ring of the bearing and the outer coating layer is effectively avoided, and the service life of the bearing is greatly prolonged.

Drawings

Fig. 1 is an exploded view of a roller assembly bearing.

In the figure: 1. an inner ring; 2. a wheel axle; 3. a linker; 4. a cylindrical groove; 5. an internal thread; 6. An outer ring; 7. an annular groove; 8. a ball bearing; 9. a sealing groove; 10. a seal ring; 11. a main body; 12. Rolling a groove; 13. an outer convex layer; 14. grooving; 15. hobbing; 16. wrapping a rubber ring; 17. an inner ring groove; 18. a relief layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A roller combination bearing comprises an inner ring 1 and an outer ring 6, wherein a cylindrical wheel shaft 2 is integrally arranged at one end of the inner ring 1 facing outwards, a connecting body 3 with a smaller radius than the wheel shaft 2 is arranged at the front end of the wheel shaft 2, a cylindrical groove 4 is arranged at the front end of the connecting body 3, and an internal thread 5 is arranged on the inner wall of the cylindrical groove 4; the front end of the connecting body 3 may also be provided with an external thread. Therefore, the roller combined bearing can be stably connected with adjacent parts, the small-amplitude inclination degree of the roller combined bearing relative to the traditional mode is reduced, the precision during high-speed rotation is increased, and the reliability of the roller combined bearing is ensured. Two opposite cutting grooves 14 are arranged on two sides of the front end of the connecting body 3, so that the connecting body can be conveniently and continuously linked with the outside.

An annular groove 7 is formed in the outer wall of the inner ring 1 and the inner wall of the outer ring 6, and a plurality of balls 8 are clamped between the annular grooves 7 of the inner ring 6 and the annular grooves 7 of the outer ring 6. And sealing grooves 9 are formed in two sides of the annular groove 7 on the outer ring 6, one end, opposite to the connecting body 3, of the inner ring 1 is provided with one sealing groove 9, and a sealing ring 10 is arranged in each sealing groove 9 of the outer ring 6. When the inner ring and the outer ring 6 are combined, one sealing ring 10 is embedded into the sealing groove 9 of the inner ring 1, and the inner wall of the other sealing ring 10 is abutted against the outer wall of the connecting body 3. The sealing rings 10 comprise main bodies 11, rolling grooves 12 are formed in opposite sides of the main bodies 11 of the two sealing rings 10, and the balls 8 roll in the rolling grooves 12. The other side of the body 11 is provided with an outer convex layer 13.

The outer wall of the outer ring 6 is provided with a plurality of gear hobbing 15, the gear hobbing 15 extends along the axial direction of the outer ring 6, and a rubber coating ring 16 is arranged outside the gear hobbing 15. Be provided with inner ring groove 17 on the inner wall of rubber coating ring 16, be provided with concave-convex layer 18 on the inner ring groove 17, concave-convex layer 18 and gear hobbing 15 mutually support to it is more stable to make rubber coating ring 16 and outer lane 6's connection.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a gyro wheel combination bearing, includes inner circle and outer lane, its characterized in that: the integrative shaft that is provided with in the inner circle, the front end of shaft is provided with the connector, and the front end of connector is provided with the internal thread or the external screw thread that are used for being connected with adjacent part, all is provided with the ring channel on the outer wall of inner circle and the inner wall of outer lane, is provided with a plurality of balls between the ring channel, the other end that lies in the both sides of ring channel and the interior relative connector of circle on the outer lane all is provided with the seal groove, be provided with two relative sealing washers in the seal groove.

2. The roller assembly bearing of claim 1, wherein: the sealing ring comprises a main body, wherein a rolling groove is formed in one opposite side of the main body, and an outer convex layer is formed in the other opposite side of the main body.

3. The roller assembly bearing of claim 1, wherein: both sides of the front end of the connecting body are provided with cutting grooves.

4. The roller assembly bearing of claim 1, wherein: the outer wall of the outer ring is provided with a plurality of hobbing teeth arranged along the axial direction, and rubber coating rings are arranged outside the hobbing teeth.

5. The roller assembly bearing of claim 4, wherein: an inner ring groove is formed in the inner wall of the rubber wrapping ring, and a concave-convex layer is arranged on the surface of the inner ring groove.