CN114526288B

CN114526288B - Bearing convenient to dismantle

Info

Publication number: CN114526288B
Application number: CN202210083409.9A
Authority: CN
Inventors: 黄莹
Original assignee: Zhejiang Shenlong Bearing Co ltd
Current assignee: Zhejiang Shenlong Bearing Co ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2024-03-08
Anticipated expiration: 2042-01-25
Also published as: CN114526288A

Abstract

The invention relates to a bearing convenient to disassemble, which comprises: the bearing seat is provided with a mounting hole, and the inner wall of the mounting hole is provided with a plurality of first positioning holes and a plurality of second positioning holes; the bearing sleeve is arranged in the mounting hole in a sliding manner; the middle bearing assembly is rotatably arranged in the middle of the bearing sleeve; the left bearing assembly is arranged in the bearing sleeve in a sliding manner and is positioned at one side of the middle bearing assembly; the right bearing assembly is arranged in the bearing sleeve in a sliding manner and is positioned at one side of the middle bearing assembly far away from the left bearing assembly; at least one first positioning component and at least one second positioning component. The invention has the advantages that: through setting up first locating component and second locating component, make the bearing housing be convenient for with the bearing frame connection location, also convenient to detach simultaneously, and along with the improvement of axis body rotational speed, can strengthen the connection of bearing housing and bearing frame voluntarily to strengthen the stability of bearing, and after the axis body stops rotatory, first locating component and second locating component can automatic re-setting, thereby be convenient for the bearing housing dismantlement.

Description

Bearing convenient to dismantle

Technical Field

The invention relates to the field of bearings, in particular to a bearing convenient to detach.

Background

Bearings are an important component in contemporary mechanical devices. Its main function is to support the mechanical rotator, reduce the friction coefficient in the course of its movement and ensure its rotation accuracy.

The bearing only provides the support of single position for along with bearing rotational speed's improvement, stability reduces gradually, leads to the bearing to appear the condition of shake, influences the transmission of pivot, and installs a plurality of bearings, can increase the installation degree of difficulty, and dismantles also more loaded down with trivial details.

Disclosure of Invention

Based on this, it is necessary to provide a bearing which is easy to disassemble in view of the above-mentioned problems.

The invention discloses a bearing convenient to detach, which comprises: the bearing seat is provided with a mounting hole, and a plurality of first positioning holes and a plurality of second positioning holes are formed in the inner wall of the mounting hole; the bearing sleeve is arranged in the mounting hole in a sliding manner; the middle bearing assembly is rotatably arranged in the middle of the bearing sleeve; the left bearing assembly is arranged in the bearing sleeve in a sliding manner and is positioned at one side of the middle bearing assembly; the right bearing assembly is arranged in the bearing sleeve in a sliding manner and is positioned at one side of the middle bearing assembly away from the left bearing assembly; the left bearing assembly can drive the first positioning assembly to extend into the first positioning hole when moving to one side far away from the middle bearing assembly, so that the bearing sleeve is fixedly connected with the bearing seat; at least one second locating component is arranged on the bearing sleeve and matched with the right bearing component, and when the right bearing component moves to one side far away from the middle bearing component, the right bearing component can drive the second locating component to extend into the second locating hole, so that the bearing sleeve is fixedly connected with the bearing seat.

In one embodiment, an annular connecting groove is formed in the middle of the bearing sleeve, the middle bearing assembly comprises a first outer ring, a first retainer, a first steel ball and a first inner ring, and an annular sliding block connected with the annular connecting groove is arranged on the first outer ring.

In one embodiment, a first cavity, a second cavity, a third cavity and a fourth cavity which are mutually communicated are formed in the first inner ring, the first cavity is communicated with the left end face of the first outer ring, the second cavity is communicated with the right end face of the first outer ring, the third cavity is communicated with the inner side of the first outer ring and is communicated with the first cavity, the fourth cavity is communicated with the inner side of the first outer ring and is communicated with the second cavity, mediums are filled in the first cavity, the second cavity, the third cavity and the fourth cavity, a first piston block is arranged in the third cavity, when the first inner ring rotates, the first piston block can slide far away from the center direction of the first inner ring, so that the mediums enter the first cavity, a second piston block is arranged in the fourth cavity, when the first inner ring rotates, the second piston block can slide far away from the center direction, so that the second piston block can slide far away from the center direction, and the second inner ring can enter the mediums.

In one embodiment, the left bearing assembly comprises a second outer ring, a second retainer, a second steel ball and a second inner ring, a first piston rod is arranged on one side of the second inner ring, and the first piston rod is slidably arranged in the first cavity.

In one embodiment, the right bearing assembly comprises a third outer ring, a third retainer, a third steel ball and a third inner ring, wherein a second piston rod is arranged on one side of the third inner ring, and the second piston rod is slidably arranged in the second cavity.

In one embodiment, a plurality of first accommodating grooves are formed in the bearing sleeve in an axial direction, the first positioning components are arranged in the first accommodating grooves in a one-to-one correspondence mode, the first positioning components comprise a first rotating part, a first locking pin and a first reset spring, one end of the first rotating part is hinged to the bearing sleeve, the first locking pin penetrates through the first positioning hole, one end of the first reset spring is abutted to the bearing sleeve, the other end of the first reset spring is abutted to the first locking pin, the first reset spring can push the first locking pin to be immersed into the bearing sleeve, the movable end of the first rotating part is abutted to the first locking pin, and the second outer ring is abutted to the first rotating part.

In one embodiment, a plurality of second accommodation grooves are formed in the bearing sleeve along the axial direction, the second positioning components are arranged in the second accommodation grooves in a one-to-one correspondence mode, each second positioning component comprises a second rotating piece, a second locking pin and a second reset spring, one end of each second rotating piece is hinged to the bearing sleeve, each second locking pin penetrates through the corresponding second positioning hole, one end of each second reset spring is abutted to the bearing sleeve, the other end of each second reset spring is abutted to the corresponding second locking pin, each second reset spring can push the corresponding second locking pin to be immersed into the corresponding bearing sleeve, the movable end of each second rotating piece is abutted to the corresponding second locking pin, and when the third outer ring moves away from the first outer ring, the corresponding second rotating piece can be driven to rotate, and accordingly the corresponding second locking pin extends out of the bearing sleeve and extrudes the corresponding second reset spring.

In one embodiment, the end of the first locking pin away from the first rotating member has a first conical portion, the end of the second locking pin away from the second rotating member has a second conical portion, when the second outer ring is attached to the first outer ring, the first conical portion extends out of the bearing sleeve, and when the third outer ring is attached to the first outer ring, the second conical portion extends out of the bearing sleeve.

In one embodiment, the first inner ring is provided with a plurality of first cavities and third cavities in an annular distribution manner, a plurality of second cavities are communicated through a first annular flow channel, one first cavity is communicated with one third cavity, the first inner ring is provided with a plurality of second cavities and fourth cavities in an annular distribution manner, a plurality of fourth cavities are communicated through a second annular flow channel, one second cavity is communicated with one fourth cavity, a plurality of first piston rods are arranged on the second inner ring corresponding to the first cavities, and a plurality of second piston rods are arranged on the third inner ring corresponding to the second cavities.

In one embodiment, a first baffle ring is arranged at one end of the bearing sleeve, a second baffle ring is arranged at the other end of the bearing sleeve, the first baffle ring can be abutted to the left bearing assembly, and the second baffle ring can be abutted to the right bearing assembly.

The invention has the advantages that:

(1) The middle bearing assembly, the left bearing assembly and the right bearing assembly are arranged, so that the support of the bearing on the shaft body can be improved;

(2) The left bearing assembly and the right bearing assembly can slide in the bearing sleeve according to the rotating speed of the shaft body, so that the supporting length of the shaft body is increased, and the rotating stability of the shaft body is improved;

(3) Through setting up first locating component and second locating component, make the bearing housing be convenient for with the bearing frame connection location, also convenient to detach simultaneously, and along with the improvement of axis body rotational speed, can strengthen the connection of bearing housing and bearing frame voluntarily to strengthen the stability of bearing, and after the axis body stops rotatory, first locating component and second locating component can automatic re-setting, thereby be convenient for the bearing housing dismantlement.

Drawings

FIG. 1 is a perspective view of a bearing of the present invention which is easy to disassemble;

FIG. 2 is a perspective view of a readily removable bearing provided by the present invention, with the bearing housing hidden;

FIG. 3 is a top view of FIG. 2 provided in accordance with the present invention;

FIG. 4 is a cross-sectional view taken along the A-A plane of FIG. 3 in accordance with the present invention;

FIG. 5 is a cross-sectional view of the B-B surface according to FIG. 3 provided by the present invention;

FIG. 6 is a cross-sectional view taken along the C-C plane of FIG. 3 in accordance with the present invention;

FIG. 7 is a top view of a readily removable bearing according to the present invention;

FIG. 8 is a cross-sectional view of D-D according to FIG. 7 provided by the present invention;

FIG. 9 is an enlarged view of a portion of the portion at E according to FIG. 8 provided by the present invention;

fig. 10 is an exploded view of a readily removable bearing provided by the present invention, wherein the bearing housing is hidden and the bearing housing is cut away to reveal the internal structure.

In the drawing, a bearing housing 1, a mounting hole 11, a first positioning hole 111, a second positioning hole 112, a bearing housing 2, an annular connecting groove 21, a first accommodating groove 22, a second accommodating groove 23, a first stopper ring 24, a second stopper ring 25, a middle bearing assembly 3, a first outer ring 31, an annular slider 311, a first retainer 32, a first steel ball 33, a first inner ring 34, a second cavity 342, a fourth cavity 344, a second piston block 346, a left bearing assembly 4, a second outer ring 41, a second retainer 42, a second steel ball 43, a second inner ring 44, a first piston rod 45, a right bearing assembly 5, a third outer ring 51, a third retainer 52, a third steel ball 53, a third inner ring 54, a second piston rod 55, a first rotating member 61, a first locking pin 62, a first cone 621, a first return spring 63, a second rotating member 71, a second locking pin 72, a second cone 721, and a second return spring 73.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It will be understood that when an element is referred to as being "mounted" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 6 and 10, the present invention discloses a bearing convenient to disassemble, which comprises: the bearing seat 1 is provided with a mounting hole 11, and as shown in fig. 8, the inner wall of the mounting hole 11 is provided with a plurality of first positioning holes 111 and a plurality of second positioning holes 112; the bearing sleeve 2 is arranged in the mounting hole 11 in a sliding manner; the middle bearing assembly 3 is rotatably arranged in the middle of the bearing sleeve 2; the left bearing assembly 4 is arranged in the bearing sleeve 2 in a sliding manner and is positioned on one side of the middle bearing assembly 3; the right bearing assembly 5 is arranged in the bearing sleeve 2 in a sliding manner and is positioned on one side of the middle bearing assembly 3 away from the left bearing assembly 4; at least one first positioning component is arranged on the bearing sleeve 2 and is matched with the left bearing component 4, and when the left bearing component 4 moves to one side far away from the middle bearing component 3, the left bearing component 4 can drive the first positioning component to extend into the first positioning hole 111, so that the bearing sleeve 2 is fixedly connected with the bearing seat 1; at least one second positioning component is arranged on the bearing sleeve 2 and is matched with the right bearing component 5, when the right bearing component 5 moves to the side far away from the middle bearing component 3, the right bearing component 5 can drive the second positioning component to extend into the second positioning hole 112, so that the bearing sleeve 2 is fixedly connected with the bearing seat 1.

In the embodiment, 4 first positioning holes 111 and 4 second positioning holes 112,4 are formed in the bearing seat 1, the first positioning holes 111 are distributed in a ring shape, and the 4 second positioning holes 112 are also distributed in a ring shape.

Preferably, as shown in fig. 6, the middle part of the bearing housing 2 is provided with an annular connecting groove 21, the middle bearing assembly 3 includes a first outer ring 31, a first retainer 32, a first steel ball 33, and a first inner ring 34, and an annular slider 311 connected with the annular connecting groove 21 is disposed on the first outer ring 31.

Preferably, as shown in fig. 7 to 9, a first cavity (not shown), a second cavity 342, a third cavity (not shown), and a fourth cavity 344 that are mutually communicated are formed in the first inner ring 34, the first cavity is communicated with the left end face of the first outer ring 31, the second cavity 342 is communicated with the right end face of the first outer ring 31, the third cavity is communicated with the inner side of the first outer ring 31 and is communicated with the first cavity, the fourth cavity 344 is communicated with the inner side of the first outer ring 31 and is communicated with the second cavity 342, media are filled in the first cavity, the second cavity 342, the third cavity and the fourth cavity 344, a first piston block (not shown) is disposed in the third cavity, when the first inner ring 34 rotates, the first piston block can slide in a direction far away from the center of the first inner ring 34, so that the media can enter the first cavity, and when the fourth cavity 342 is disposed in the fourth cavity 342, the second piston block 346 can slide in a direction far away from the center of the first inner ring 34, so that the second piston block 346 can enter the center of the second inner ring 34.

Preferably, the left bearing assembly 4 includes a second outer ring 41, a second retainer 42, a second steel ball 43, and a second inner ring 44, a first piston rod 45 is disposed on one side of the second inner ring 44, and the first piston rod 45 is slidably disposed in the first cavity.

Preferably, as shown in fig. 9, the right bearing assembly 5 includes a third outer ring 51, a third retainer 52, a third steel ball 53, and a third inner ring 54, where a second piston rod 55 is disposed on one side of the third inner ring 54, and the second piston rod 55 is slidably disposed in the second cavity 342.

Preferably, as shown in fig. 6, the bearing housing 2 is provided with a plurality of first accommodating grooves 22 along an axial direction, the first positioning components are disposed in the first accommodating grooves 22 in a one-to-one correspondence manner, the first positioning components include a first rotating member 61, a first locking pin 62 and a first return spring 63, one end of the first rotating member 61 is hinged to the bearing housing 2, the first locking pin 62 is inserted into the first positioning hole 111, one end of the first return spring 63 is abutted to the bearing housing 2, the other end of the first return spring 63 is abutted to the first locking pin 62, the first return spring 63 can push the first locking pin 62 to be immersed into the bearing housing 2, the movable end of the first rotating member 61 is abutted to the first locking pin 62, the second outer ring 41 is abutted to the first rotating member 61, and when the second outer ring 41 moves away from the first outer ring 31, the first rotating member 61 can be driven to rotate, so that the first locking pin 62 can be extruded and the first return spring 63 can extrude the first locking pin 63.

Preferably, the bearing housing 2 is provided with a plurality of second accommodating grooves 23 along an axial direction, the second positioning components are arranged in the second accommodating grooves 23 in a one-to-one correspondence manner, each second positioning component comprises a second rotating member 71, a second locking pin 72 and a second return spring 73, one end of each second rotating member 71 is hinged to the bearing housing 2, each second locking pin 72 is arranged in the corresponding second positioning hole 112 in a penetrating manner, one end of each second return spring 73 is abutted to the corresponding bearing housing 2, the other end of each second return spring 73 is abutted to the corresponding second locking pin 72, the corresponding second return spring 73 can push the corresponding second locking pin 72 to be immersed into the corresponding bearing housing 2, the corresponding movable end of each second rotating member 71 is abutted to the corresponding second locking pin 72, the corresponding third outer ring 51 is abutted to the corresponding second rotating member 71, and when the corresponding third outer ring 51 moves in a direction away from the corresponding first outer ring 31, the corresponding second rotating member 71 can be driven to rotate, and accordingly the corresponding second locking pin 72 can be pushed out of the corresponding second locking pin 72, and the corresponding second return spring 73 can be pushed out of the corresponding second locking pin 72.

Preferably, as shown in fig. 6, an end of the first locking pin 62 away from the first rotating member 61 has a first taper portion 621, an end of the second locking pin 72 away from the second rotating member 71 has a second taper portion 721, when the second outer ring 41 is attached to the first outer ring 31, the first taper portion 621 extends outside the bearing housing 2, and when the third outer ring 51 is attached to the first outer ring 31, the second taper portion 721 extends outside the bearing housing 2.

Preferably, a plurality of first cavities and third cavities are annularly distributed on the first inner ring 34, a plurality of third cavities are communicated through a first annular runner (not shown), one first cavity is communicated with one third cavity, a plurality of second cavities 342 and fourth cavities 344 are annularly distributed on the first inner ring 34, a plurality of fourth cavities 344 are communicated through a second annular runner (not shown), one second cavity 342 is communicated with one fourth cavity 344, a plurality of first piston rods 45 are arranged on the second inner ring 44 corresponding to the first cavities, and a plurality of second piston rods 55 are arranged on the third inner ring 54 corresponding to the second cavities 342.

As shown in fig. 8 and 9, the structure of the second cavity 342 and the fourth cavity 344 is shown, the second cavity 342 is communicated with the fourth cavity 344, the second piston block 346 is slidably disposed in the fourth cavity 344, and the first piston rod 45 is slidably disposed in the second cavity 342; the structures of the first chamber, the third chamber, the first piston block, and the first piston rod 45 are set in the same manner as the above-described structures.

Preferably, a first baffle ring 24 is disposed at one end of the bearing sleeve 2, a second baffle ring 25 is disposed at the other end of the bearing sleeve 2, the first baffle ring 24 can be abutted to the left bearing assembly 4, and the second baffle ring 25 can be abutted to the right bearing assembly 5.

The working mode of the invention is as follows: as shown in fig. 1, 2, 7 and 8, after the bearing housing 2 is installed in the installation hole 11, the first taper portion 621 of the first locking pin 62 extends into the first positioning hole 111, the second taper portion 721 of the second locking pin 72 extends into the second positioning hole 112, and the preliminary installation is completed, and it should be noted that the first rotating member 61 and the second rotating member 71 have a certain deformability, and after the bearing housing 2 is installed in the installation hole 11, the first taper portion 621 can extend into the first positioning hole 111, and the second taper portion 721 can extend into the second positioning hole 112, so that the preliminary positioning of the bearing housing 2 is completed;

as shown in fig. 6, the shaft body sequentially passes through the second inner ring 44, the first inner ring 34 and the third inner ring 54 to complete the installation of the shaft body, when the shaft body starts to rotate, the first inner ring 34, the second inner ring 44 and the third inner ring 54 follow the rotation of the shaft body, and as the first piston block and the second piston block 346 are subjected to centrifugal force, the first piston block and the second piston block 346 move towards the direction far away from the center of the shaft body, so that the medium in the third cavity enters the first cavity, thereby pushing the first piston rod 45 to slide along the first cavity, enabling the left bearing assembly 4 to be far away from the middle bearing assembly 3, simultaneously, the medium in the fourth cavity 344 enters the second cavity 342, enabling the second piston rod 55 to slide along the second cavity 342, enabling the right bearing assembly 5 to be far away from the middle bearing assembly 3, so as to achieve the effect of expanding the supporting section of the bearing body, and improving the stability of the shaft body during rotation, and simultaneously, when the left bearing assembly 4 slides towards the side far away from the middle bearing assembly 3, the first rotating member 61 is driven to rotate by extrusion, so as to push the first locking pin 62 is pushed to slide towards the first cavity, and the right bearing assembly 62 is pushed towards the side of the second bearing assembly 2, and the locking pin 2 is pushed towards the side of the second bearing assembly 1, and the locking pin 2 is pushed towards the second bearing assembly 2, and the locking pin 2 is positioned in depth of the bearing assembly 2.

It should be noted that the faster the rotation speed of the shaft body, the farther the left bearing assembly 4 and the right bearing assembly 5 are away from the middle bearing assembly 3, and the better the supporting effect of the shaft body is.

When the shaft body stops rotating, the first return spring 63 can push the first locking pin 62 to return, so that the first rotating member 61 reversely rotates to push the left bearing assembly 4 to be close to the middle bearing assembly 3, and similarly, the second return spring 73 can push the second locking pin 72 to return, so that the second rotating member 71 reversely rotates to push the right bearing assembly 5 to be close to the middle bearing assembly 3.

When the bearing sleeve 2 needs to be removed, the mounting hole 11 is manually moved out.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. The utility model provides a bearing convenient to dismantle which characterized in that, the bearing convenient to dismantle include:

the bearing seat is provided with a mounting hole, and a plurality of first positioning holes and a plurality of second positioning holes are formed in the inner wall of the mounting hole;

the bearing sleeve is arranged in the mounting hole in a sliding manner;

the middle bearing assembly is rotatably arranged in the middle of the bearing sleeve;

the left bearing assembly is arranged in the bearing sleeve in a sliding manner and is positioned at one side of the middle bearing assembly;

the right bearing assembly is arranged in the bearing sleeve in a sliding manner and is positioned at one side of the middle bearing assembly away from the left bearing assembly;

the left bearing assembly can drive the first positioning assembly to extend into the first positioning hole when moving to one side far away from the middle bearing assembly, so that the bearing sleeve is fixedly connected with the bearing seat;

at least one second locating component is arranged on the bearing sleeve and matched with the right bearing component, and when the right bearing component moves to one side far away from the middle bearing component, the right bearing component can drive the second locating component to extend into the second locating hole, so that the bearing sleeve is fixedly connected with the bearing seat.

2. The bearing convenient to detach according to claim 1, wherein an annular connecting groove is formed in the middle of the bearing sleeve, the middle bearing assembly comprises a first outer ring, a first retainer, a first steel ball and a first inner ring, and an annular sliding block connected with the annular connecting groove is arranged on the first outer ring.

3. The bearing convenient to detach according to claim 2, wherein a first cavity, a second cavity, a third cavity and a fourth cavity which are mutually communicated are formed in the first inner ring, the first cavity is communicated with the left end face of the first outer ring, the second cavity is communicated with the right end face of the first outer ring, the third cavity is communicated with the inner side of the first outer ring and is communicated with the first cavity, the fourth cavity is communicated with the inner side of the first outer ring and is communicated with the second cavity, mediums are filled in the first cavity, the second cavity, the third cavity and the fourth cavity, a first piston block is arranged in the third cavity, and when the first inner ring rotates, the first piston block can slide away from the center direction of the first inner ring, so that the mediums enter the first cavity, a second piston block is arranged in the fourth cavity, and when the first inner ring rotates, the second piston block can slide away from the center direction of the first inner ring, so that the second piston block can slide away from the center direction of the first inner ring.

4. The easy-to-disassemble bearing according to claim 3, wherein the left bearing assembly comprises a second outer ring, a second retainer, a second steel ball and a second inner ring, a first piston rod is arranged on one side of the second inner ring, and the first piston rod is slidably arranged in the first cavity.

5. The easy-to-disassemble bearing of claim 4, wherein the right bearing assembly comprises a third outer ring, a third retainer, a third steel ball and a third inner ring, a second piston rod is arranged on one side of the third inner ring, and the second piston rod is slidably arranged in the second cavity.

6. The easy-to-detach bearing according to claim 5, wherein a plurality of first receiving grooves are formed in the bearing housing along an axial direction, the first positioning components are arranged in the first receiving grooves in a one-to-one correspondence manner, the first positioning components comprise a first rotating member, a first locking pin and a first return spring, one end of the first rotating member is hinged to the bearing housing, the first locking pin penetrates through the first positioning hole, one end of the first return spring is abutted to the bearing housing, the other end of the first return spring is abutted to the first locking pin, the first return spring can push the first locking pin to be immersed into the bearing housing, the movable end of the first rotating member is abutted to the first locking pin, and the second outer ring is abutted to the first rotating member, when the second outer ring moves away from the first direction, the first rotating member can be driven to rotate, so that the first locking pin stretches out of the first locking pin, and the first return spring extrudes the bearing housing.

7. The easy-to-detach bearing according to claim 6, wherein a plurality of second receiving grooves are formed in the bearing housing along an axial direction, the second positioning assemblies are arranged in the second receiving grooves in a one-to-one correspondence manner, each second positioning assembly comprises a second rotating member, a second locking pin and a second return spring, one end of each second rotating member is hinged to the bearing housing, each second locking pin penetrates through the corresponding second positioning hole, one end of each second return spring is abutted to the bearing housing, the other end of each second return spring is abutted to the corresponding second locking pin, each second return spring can push the corresponding second locking pin to sink into the corresponding bearing housing, the movable end of each second rotating member is abutted to the corresponding second locking pin, and each third outer ring is abutted to the corresponding second rotating member, when each third outer ring moves away from the corresponding first outer ring, the second rotating member can be driven to rotate, and accordingly the corresponding second locking pin extends out of the corresponding second locking pin and extrudes the corresponding second return spring.

8. The easy-to-disassemble bearing according to claim 7, wherein the end of the first locking pin away from the first rotating member has a first tapered portion, the end of the second locking pin away from the second rotating member has a second tapered portion, the first tapered portion extends outside the bearing housing when the second outer ring is attached to the first outer ring, and the second tapered portion extends outside the bearing housing when the third outer ring is attached to the first outer ring.

9. The bearing convenient to detach according to claim 8, wherein a plurality of first cavities and third cavities are annularly distributed on the first inner ring, a plurality of second cavities are communicated with one third cavity through a first annular flow channel, a plurality of second cavities and fourth cavities are annularly distributed on the first inner ring, a plurality of second cavities are communicated with one fourth cavity through a second annular flow channel, a plurality of first piston rods are arranged on the second inner ring corresponding to the first cavities, and a plurality of second piston rods are arranged on the third inner ring corresponding to the second cavities.

10. The easy-to-disassemble bearing of claim 1, wherein a first stop ring is provided at one end of the bearing housing, a second stop ring is provided at the other end of the bearing housing, the first stop ring being capable of abutting against the left bearing assembly, and the second stop ring being capable of abutting against the right bearing assembly.