CN220581497U - Precise angular contact ball bearing - Google Patents

Abstract

The utility model discloses a precise angular contact ball bearing, which comprises a bearing outer ring, wherein a first inner ring component and a second inner ring component are respectively arranged on two sides of the inner wall of the bearing outer ring, a plurality of bearing balls are respectively arranged between the bearing outer ring and the first inner ring component and the second inner ring component, a limit frame is respectively arranged between two sides of the bearing outer ring by the bearing balls, a sealing component is respectively arranged between the first inner ring component and the second inner ring component and the inner wall of the bearing outer ring, and one side of the second inner ring component is fixedly and spirally connected with a threaded cap. According to the utility model, the first inner ring assembly, the second inner ring assembly and the sealing assembly are designed, so that the whole bearing is relatively simple to install and detach, and only the sealing assembly is required to be taken down when lubricating oil is added, the threaded cap is opened, and the lubricating oil is directly injected into the bearing through the through hole, so that the bearing is very convenient to use, and damage to the bearing during the disassembly is avoided.

Description

Precise angular contact ball bearing

Technical Field

The utility model relates to the technical field of bearings, in particular to a precise angular contact ball bearing.

Background

The rolling bearing is a precise mechanical element which changes sliding friction between an operating shaft and a shaft seat into rolling friction, thereby reducing friction loss, the rolling bearing generally comprises an inner ring, an outer ring, rolling bodies and a retainer, the inner ring is matched with the shaft and rotates together with the shaft, the outer ring is matched with a bearing seat to play a supporting role, the rolling bodies are uniformly distributed between the inner ring and the outer ring by means of the retainer, the shape, the size and the number of the rolling bodies directly influence the service performance and the service life of the rolling bearing, the retainer can uniformly distribute the rolling bodies and guide the rolling bodies to rotate for lubrication, wherein the angular contact ball bearing can bear radial load and axial load at the same time, can work at higher rotating speed, the larger the contact angle is, the higher the axial bearing capacity is, the contact angle is the angle between the contact point connecting line of the ball and a raceway in a radial plane and the vertical line of the bearing axis, the contact angle is generally 15 degrees under the action of axial force, and the contact angle can be increased.

In the use process of the precise angular contact ball bearing, due to the high precision of the precise angular contact ball bearing, the tightness of the precise angular contact ball bearing needs to be ensured to avoid external sundries from entering the bearing, the sealing is realized by installing a sealing cover at the joint of the precise angular contact ball bearing, but the sealing cover needs to be pried open by a screwdriver when being disassembled, and then the bearing can be damaged to a certain extent, and meanwhile, the subsequent lubricating oil adding to the bearing needs to be troublesome.

It is therefore desirable to provide a precision angular contact ball bearing that addresses the above-described issues.

Disclosure of Invention

The utility model aims to solve the technical problems that the sealing cover is arranged at the joint of the conventional precision angular contact ball bearing to realize sealing, but the sealing cover needs to be pried off by a screwdriver when being disassembled, so that the bearing is damaged to some extent, and meanwhile, the subsequent lubricating oil adding into the bearing is troublesome.

In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides a precision angular contact ball bearing, including the bearing outer ring, the inner wall both sides of bearing outer ring are provided with first inner ring subassembly and second inner ring subassembly respectively, a plurality of bearing balls are all installed between bearing outer ring and first inner ring subassembly and the second inner ring subassembly;

the bearing balls are provided with limiting frames between two sides of the bearing outer ring, sealing assemblies are arranged between the first inner ring assembly and the inner wall of the bearing outer ring, and one side of the second inner ring assembly is fixedly and spirally connected with a threaded cap.

The utility model is further provided with: the first inner ring assembly comprises a first bearing inner ring, and two first bolts are arranged on the first bearing inner ring.

Through the technical scheme, the plurality of bearing balls are placed on the outer ring of the bearing, then the limiting frame is placed on the outer ring of the bearing, and the first bearing inner ring is covered on the plurality of bearing balls.

The utility model is further provided with: the second inner ring assembly comprises a second bearing inner ring, and two second bolts are arranged on the second bearing inner ring.

Through the technical scheme, the plurality of bearing balls are placed on the other surface of the bearing outer ring, then the limiting frame is placed in a swinging mode, the second bearing inner ring is covered on the plurality of bearing balls, and then corresponding first bolts and second bolts are inserted into the first bearing inner ring and the second bearing inner ring, so that fixation is completed.

The utility model is further provided with: two threaded holes corresponding to the second bolt and the first bolt are respectively formed in the first bearing inner ring and the second bearing inner ring, and the first bolt and the second bolt are distributed in a crossing mode.

Through above-mentioned technical scheme, accomplish fixedly through second bolt and first bolt, first bolt and second bolt cross distribution make its connection more firm.

The utility model is further provided with: grooves corresponding to the bearing balls are formed in the outer wall of the first bearing inner ring, the outer wall of the second bearing inner ring and the inner wall of the bearing outer ring.

Through above-mentioned technical scheme, the recess plays spacing effect to the bearing ball, and the bearing ball plays the supporting role to the rotation between first bearing inner ring and second bearing inner ring and the bearing outer ring, and when receiving longitudinal and lateral effort, disperse on first bearing inner ring and second bearing inner ring and the bearing outer ring through two sets of bearing balls.

The utility model is further provided with: an L-shaped through hole corresponding to the threaded cap is formed in one side of the second bearing inner ring.

According to the technical scheme, the threaded cap is opened, lubricating oil is injected into the threaded cap, and the threaded cap is filled among the plurality of bearing balls.

The utility model is further provided with: the sealing assembly comprises a rubber sealing ring clamped on the inner wall of the outer ring of the bearing, and two fixing clamping strips are fixedly connected to the outer wall of the rubber sealing ring.

Through the technical scheme, the rubber sealing rings are pressed on the two sides of the outer ring of the bearing finally, and then the clamping and fixing are completed through the fixing clamping strips

The utility model is further provided with: the inner wall of the bearing outer ring is provided with two grooves corresponding to the fixing clamping strips.

Through above-mentioned technical scheme, guaranteed through fixed card strip with seal assembly card at the outer ring inner wall of bearing accomplish fixedly, when adding lubricating oil later, directly take off can.

The beneficial effects of the utility model are as follows:

according to the utility model, the first inner ring assembly, the second inner ring assembly and the sealing assembly are designed, so that the whole bearing is relatively simple to install and detach, and the whole bearing is prevented from being damaged during detachment by only opening the threaded cap and directly injecting the lubricating oil into the bearing through the through hole.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

FIG. 3 is an exploded view of the present utility model;

fig. 4 is a partial construction view of the mounting step of the present utility model.

In the figure: 1. an outer ring of the bearing; 2. a first inner ring assembly; 21. a first bearing inner ring; 22. a first bolt; 3. a second inner ring assembly; 31. a second bearing inner ring; 32. a second bolt; 4. bearing balls; 5. a limiting frame; 6. a seal assembly; 61. a rubber seal ring; 62. fixing the clamping strips; 7. a screw cap.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.

Referring to fig. 1 to 4, a precision angular contact ball bearing comprises a bearing outer ring 1, a first inner ring assembly 2 and a second inner ring assembly 3 are respectively arranged on two sides of the inner wall of the bearing outer ring 1, the first inner ring assembly 2 comprises a first bearing inner ring 21, two first bolts 22 are arranged on the first bearing inner ring 21, a plurality of bearing balls 4 are arranged on the bearing outer ring 1, a limit frame 5 is then arranged on the first bearing inner ring 21, the first bearing inner ring 21 covers the plurality of bearing balls 4, the second inner ring assembly 3 comprises a second bearing inner ring 31, two second bolts 32 are arranged on the second bearing inner ring 31, a plurality of bearing balls 4 are arranged on the other surface of the bearing outer ring 1, a limit frame 5 is then arranged on the second bearing inner ring 31, corresponding first bolts 22 and second bolts 32 are inserted on the first bearing inner ring 21 and the second bearing inner ring 31, two threaded holes corresponding to the second bolts 32 and the first bolts 22 are respectively formed in the first bearing inner ring 21 and the second bearing inner ring 31 after the fixing is finished, the first bolts 22 and the second bolts 32 are distributed in a crossing way, the fixing is finished through the second bolts 32 and the first bolts 22, the first bolts 22 and the second bolts 32 are distributed in a crossing way, so that the connection is firmer, a plurality of bearing balls 4 are arranged between the bearing outer ring 1 and the first inner ring assembly 2 and the second inner ring assembly 3, grooves corresponding to the bearing balls 4 are formed in the outer wall of the first bearing inner ring 21, the outer wall of the second bearing inner ring 31 and the inner wall of the bearing outer ring 1, the grooves play a limiting role on the bearing balls 4, the bearing balls 4 play a supporting role on the rotation between the first bearing inner ring 21 and the second bearing inner ring 31 and the bearing outer ring 1, dispersed to the first 21 and second 31 bearing inner ring and the bearing outer ring 1 by two sets of bearing balls 4 when subjected to longitudinal and transverse forces;

as shown in fig. 1-4, the plurality of bearing balls 4 are respectively provided with a limiting frame 5 between two sides of the bearing outer ring 1, a sealing component 6 is respectively provided between the first inner ring component 2 and the second inner ring component 3 and the inner wall of the bearing outer ring 1, the sealing component 6 comprises a rubber sealing ring 61 clamped on the inner wall of the bearing outer ring 1, the outer wall of the rubber sealing ring 61 is fixedly connected with two fixing clamping strips 62, finally the rubber sealing ring 61 is pressed on two sides of the bearing outer ring 1, the clamping and fixing are further completed through the fixing clamping strips 62, the inner wall of the bearing outer ring 1 is provided with two grooves corresponding to the fixing clamping strips 62, the sealing component 6 is clamped on the inner wall of the bearing outer ring 1 through the fixing clamping strips 62, the sealing component 6 can be directly removed when the bearing outer ring 1 is dismounted later, one side of the second inner ring component 3 is fixedly and spirally connected with a threaded cap 7, one side of the second inner ring 31 is provided with an L-shaped through hole corresponding to the threaded cap 7, the threaded cap 7 is opened, lubricating oil is injected into the bearing ball 4, and the bearing balls 4 are filled.

When the utility model is used, a plurality of bearing balls 4 are placed on the bearing outer ring 1, then a limiting frame 5 is arranged on the bearing outer ring, a first bearing inner ring 21 is covered on the plurality of bearing balls 4, a plurality of bearing balls 4 are placed on the other surface of the bearing outer ring 1, then the limiting frame 5 is arranged on the bearing outer ring, a second bearing inner ring 31 is covered on the plurality of bearing balls 4, then corresponding first bolts 22 and second bolts 32 are inserted on the first bearing inner ring 21 and the second bearing inner ring 31 to finish fixation, finally rubber sealing rings 61 are pressed on two sides of the bearing outer ring 1, further the clamping fixation is finished through fixing clamping strips 62, and when lubricating oil is added later, filling can be finished through holes only by directly taking down a threaded cap 7.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (8)

1. The utility model provides a precision angular contact ball bearing, includes bearing outer ring (1), its characterized in that: a first inner ring component (2) and a second inner ring component (3) are respectively arranged on two sides of the inner wall of the bearing outer ring (1), and a plurality of bearing balls (4) are respectively arranged between the bearing outer ring (1) and the first inner ring component (2) and the second inner ring component (3);

the bearing balls (4) are arranged between two sides of the bearing outer ring (1) respectively, a limiting frame (5) is arranged between the first inner ring component (2) and the second inner ring component (3) and the inner wall of the bearing outer ring (1), a sealing component (6) is arranged between the first inner ring component and the inner wall of the bearing outer ring (1), and one side of the second inner ring component (3) is fixedly and spirally connected with a threaded cap (7).

2. The precision angular contact ball bearing of claim 1, wherein: the first inner ring assembly (2) comprises a first bearing inner ring (21), and two first bolts (22) are arranged on the first bearing inner ring (21).

3. The precision angular contact ball bearing of claim 2, wherein: the second inner ring assembly (3) comprises a second bearing inner ring (31), and two second bolts (32) are arranged on the second bearing inner ring (31).

4. A precision angular contact ball bearing according to claim 3, wherein: two threaded holes corresponding to the second bolts (32) and the first bolts (22) are respectively formed in the first bearing inner ring (21) and the second bearing inner ring (31), and the first bolts (22) and the second bolts (32) are distributed in a crossing mode.

5. A precision angular contact ball bearing according to claim 3, wherein: grooves corresponding to the bearing balls (4) are formed in the outer wall of the first bearing inner ring (21), the outer wall of the second bearing inner ring (31) and the inner wall of the bearing outer ring (1).

6. A precision angular contact ball bearing according to claim 3, wherein: an L-shaped through hole corresponding to the threaded cap (7) is formed in one side of the second bearing inner ring (31).

7. The precision angular contact ball bearing of claim 1, wherein: the sealing assembly (6) comprises a rubber sealing ring (61) clamped on the inner wall of the bearing outer ring (1), and two fixing clamping strips (62) are fixedly connected to the outer wall of the rubber sealing ring (61).

8. The precision angular contact ball bearing of claim 7, wherein: the inner wall of the bearing outer ring (1) is provided with two grooves corresponding to the fixing clamping strips (62).