CN221097188U - Multi-point contact ball bearing - Google Patents
Multi-point contact ball bearing Download PDFInfo
- Publication number
- CN221097188U CN221097188U CN202322890092.2U CN202322890092U CN221097188U CN 221097188 U CN221097188 U CN 221097188U CN 202322890092 U CN202322890092 U CN 202322890092U CN 221097188 U CN221097188 U CN 221097188U
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- inner ring
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- groove
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- 238000001125 extrusion Methods 0.000 claims description 15
- 230000006978 adaptation Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to the technical field of bearings and discloses a multipoint contact ball bearing which comprises a bearing body, wherein the bearing body comprises a bearing outer ring, a retainer and contact balls, the retainer is positioned on the inner side of the bearing outer ring, the contact balls are movably arranged in the retainer, the bearing body comprises a first bearing inner ring and a second bearing inner ring, and the first bearing inner ring is positioned on the upper side of the second bearing inner ring. When the bearing body needs to be assembled, the second bearing inner ring can be firstly placed on the inner side of the outer bearing ring, then the retainer and the contact ball are placed on the inner side of the outer bearing ring, the contact ball can be clamped with the second contact groove, then the positioning tube and the positioning clamping groove are connected together, the positioning pin can be extruded to move backwards when being contacted with the inner wall of the positioning clamping groove, the elastic element can be lengthened, when the positioning pin moves to the position of the positioning hole, the elastic element can restore to the original length, and the positioning pin can move forwards to the inside of the positioning hole, so that the whole installation operation is completed.
Description
Technical Field
The utility model relates to the technical field of bearings, in particular to a multipoint contact ball bearing.
Background
A harmonic drive transmission includes three basic components: wave generator, flexspline, rigid gear and flexible bearing. The flexible bearing is a core component, and the transmission meets the performance requirement of high reduction ratio through the elastic deformation of the bearing. The flexible bearing is in operation, the inner ring is arranged on the elliptical cam, the circular stress load is born in operation, the outer ring is arranged on the flexible gear, the flexible bearing is elastically deformed along with the rotation of the cam in operation, the circular stress load is born, the alternating stress load is born, the conventional flexible bearing is of a two-piece structure and is divided into an inner ring and an outer ring, and balls are arranged between the inner ring and the outer ring, but the structure is inconvenient for the installation of the balls and cannot be detached.
For this purpose we propose a multipoint contact ball bearing.
Disclosure of utility model
The utility model mainly solves the technical problems existing in the prior art and provides a multi-point contact ball bearing.
In order to achieve the above purpose, the multi-point contact ball bearing comprises a bearing body, wherein the bearing body comprises a bearing outer ring, a retainer and contact balls, the retainer is located on the inner side of the bearing outer ring, the contact balls are movably mounted in the retainer, the bearing body comprises a first bearing inner ring and a second bearing inner ring, the first bearing inner ring is located on the upper side of the second bearing inner ring, the first bearing inner ring and the second bearing inner ring are both located on the inner side of the retainer, a first contact groove is formed in the outer wall of the first bearing inner ring, a second contact groove is formed in the outer wall of the second bearing inner ring, the second contact groove and the first contact groove form a semicircle, the contact balls are in sliding contact with the second contact groove and the first contact groove in a movable mode, a positioning pipe is fixedly mounted at the bottom of the first bearing inner ring, a positioning clamping groove is formed in the upper side wall of the second bearing inner ring, a positioning pin is movably mounted in the inner side wall of the positioning clamping groove, the positioning pin movably penetrates through the outer wall of the positioning pipe, the positioning pin is movably clamped into the inner side surface of the positioning hole, the positioning pin is fixedly mounted on the side wall of the positioning pipe is adjacent to the connecting block, and the connecting block is fixedly mounted on the side wall of the connecting block.
Preferably, a limiting rod is fixedly arranged at the bottom of the first bearing inner ring, a limiting clamping groove is fixedly arranged on the upper side wall surface of the second bearing inner ring, the limiting clamping groove and the limiting rod are mutually matched, and the limiting rod is movably clamped into the limiting clamping groove.
Preferably, the upper side wall surface of the first bearing inner ring is in threaded connection with a threaded column, an auxiliary groove is formed in the upper side wall surface of the threaded column, the auxiliary groove is in a regular hexagon shape, a connecting shaft is rotatably installed at the bottom of the threaded column, and the connecting shaft is in a vertical state.
Preferably, the inside movable mounting of locating tube has the connecting plate of looks adaptation, and the connecting plate is the disc, and connecting axle fixed mounting is in the upper side wall face of connecting plate.
Preferably, the bottom wall surface of the connecting plate is fixedly provided with an extrusion block, the extrusion block is rectangular, and the rear side wall surface of the extrusion block is in contact with the front side wall surface of the connecting block.
Preferably, the wall surfaces of the connecting block and the extrusion block, which are in contact with each other, are inclined surfaces, and the two inclined surfaces are in a state of being higher at the rear and lower at the front.
Preferably, the positioning tube is matched with the positioning clamping groove, and the positioning pin is matched with the inside of the positioning hole.
Advantageous effects
The utility model provides a multipoint contact ball bearing. The beneficial effects are as follows:
(1) When the bearing body is required to be assembled, the second bearing inner ring can be firstly placed on the inner side of the outer bearing ring, then the retainer and the contact ball are placed on the inner side of the outer bearing ring, the contact ball can be clamped with the second contact groove, the positioning pipe and the positioning clamping groove are connected together, the positioning pin can be extruded to move backwards when being contacted with the inner wall of the positioning clamping groove, the elastic element can be pulled to be long, and when the positioning pin moves to the position of the positioning hole, the elastic element can restore the original length, and the positioning pin can move forwards to the inside of the positioning hole, so that the whole installation operation is completed, the whole process is simple and convenient, and the installation speed is improved.
(2) The multi-point contact ball bearing is characterized in that when the bearing main body is disassembled, the tool is clamped into the auxiliary groove, the threaded column rotates positively, the connecting shaft moves downwards with the connecting plate, the extrusion block moves downwards, under the action of the two inclined surfaces of the extrusion block and the connecting block, the connecting block starts to move backwards, and finally the positioning pin leaves the inside of the positioning hole, so that the first bearing inner ring and the second bearing inner ring can be separated, the whole disassembly is convenient, and in addition, under the mutual cooperation of the limiting clamping groove and the limiting rod, the stability of the first bearing inner ring and the second bearing inner ring in connection can be improved, and the whole stability is improved.
Drawings
FIG. 1 is a perspective view of the whole of the present utility model;
FIG. 2 is a perspective view of a first bearing inner race according to the present utility model;
fig. 3 is a cut-away perspective view of the positioning tube of the present utility model.
Legend description: 1. a bearing outer ring; 2. a retainer; 3. a contact ball; 4. a first bearing inner ring; 5. a second bearing inner ring; 6. a first contact groove; 7. a second contact groove; 8. positioning holes; 9. a positioning tube; 10. a positioning pin; 11. a connecting block; 12. an elastic element; 13. a threaded column; 14. an auxiliary groove; 15. a connecting shaft; 16. a connecting plate; 17. extruding a block; 18. a limit clamping groove; 19. and a limit rod.
Detailed Description
1-3, As shown in the drawings, the multipoint contact ball bearing comprises a bearing body, the bearing body comprises a bearing outer ring 1, a retainer 2 and a contact ball 3, the retainer 2 is located in the inner side of the bearing outer ring 1, the contact ball 3 is movably mounted in the retainer 2, the bearing body comprises a first bearing inner ring 4 and a second bearing inner ring 5, the first bearing inner ring 4 is located at the upper side position of the second bearing inner ring 5, the first bearing inner ring 4 and the second bearing inner ring 5 are both located at the inner side position of the retainer 2, a first contact groove 6 is formed in the outer wall of the first bearing inner ring 4, a second contact groove 7 is formed in the outer wall of the second bearing inner ring 5, the second contact groove 7 and the first contact groove 6 form a semicircle, the contact ball 3 is close to the first bearing inner ring 4 and the outer wall of the second bearing inner ring 5 and is movably mounted with the second contact groove 7 and the first contact groove 6 in a sliding contact mode, a positioning pipe 9 is fixedly mounted at the bottom of the first bearing inner ring 4, a positioning clamping groove is formed in the upper side wall surface of the second bearing inner ring 5, a positioning clamping groove 9 is movably clamped in the positioning pipe 9, a positioning hole 8 is formed in the inner wall of the positioning clamping groove 9, an inner wall of the positioning pipe 9 is movably clamped in the positioning pipe is movably, a positioning connecting block 10 is movably mounted in the positioning pipe is fixedly connected with the positioning block 10, a cylindrical positioning pin 10 is fixedly connected with the positioning block 11, the positioning block 11 is fixedly connected with the positioning block 11, and the positioning block is fixedly connected with the positioning block 11.
The bottom fixed mounting of bearing inner race one 4 has gag lever post 19, and bearing inner race two 5's upper side wall face fixed mounting has spacing draw-in groove 18, and spacing draw-in groove 18 and gag lever post 19 all are cylindrically, and spacing draw-in groove 18 and gag lever post 19 all mutually support, and the inside of spacing draw-in groove 18 is gone into to gag lever post 19 activity card.
The upper side wall surface of the first bearing inner ring 4 is in threaded connection with a threaded column 13, an auxiliary groove 14 is formed in the upper side wall surface of the threaded column 13, the auxiliary groove 14 is in a regular hexagon shape, a connecting shaft 15 is rotatably arranged at the bottom of the threaded column 13, the connecting shaft 15 is in a vertical state, and the connecting shaft 15 is in a cylindrical shape.
The inside movable mounting of registration arm 9 has looks adaptation connecting plate 16, and connecting plate 16 is the disc, and connecting axle 15 fixed mounting is in the upper side wall face of connecting plate 16.
The bottom wall surface of the connecting plate 16 is fixedly provided with an extrusion block 17, the extrusion block 17 is rectangular, and the rear side wall surface of the extrusion block 17 and the front side wall surface of the connecting block 11 are in contact with each other.
The wall surfaces of the connecting block 11 and the pressing block 17 which are in contact with each other are inclined surfaces, and the two inclined surfaces are in a state of being high at the rear and low at the front.
The positioning tube 9 is matched with the positioning clamping groove, and the positioning pin 10 is matched with the inside of the positioning hole 8.
The working principle of the invention is as follows:
In the use process of the utility model, when the bearing body is required to be assembled, the second bearing inner ring 5 can be firstly placed on the inner side of the bearing outer ring 1, then the retainer 2 and the contact ball 3 are placed on the inner side of the bearing outer ring 1, the contact ball 3 can be clamped with the second contact groove 7, then the positioning pipe 9 and the positioning clamping groove are connected together, the positioning pin 10 can be pressed and moved backwards when contacting with the inner wall of the positioning clamping groove, the elastic element 12 can be elongated, when the positioning pin 10 moves to the position of the positioning hole 8, the elastic element 12 can restore the original length, and the positioning pin 10 can move forwards to the inside of the positioning hole 8, so that the whole installation operation is completed.
In the use process, when the bearing main body is disassembled, the tool is clamped into the auxiliary groove 14, the threaded column 13 rotates positively, the connecting shaft 15 can drive the connecting plate 16 to move downwards, the extrusion block 17 can move downwards, under the action of the two inclined surfaces of the extrusion block 17 and the connection block 11, the connection block 11 starts to move backwards, and finally the positioning pin 10 leaves the inside of the positioning hole 8, so that the first bearing inner ring 4 and the second bearing inner ring 5 can be separated, the whole disassembly is convenient, and in addition, under the mutual matching of the limiting clamping groove 18 and the limiting rod 19, the stability of the connection of the first bearing inner ring 4 and the second bearing inner ring 5 can be improved.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a multi-point contact ball bearing, includes the bearing body, and the bearing body includes bearing outer lane (1), holder (2) and contact ball (3), and holder (2) are located the inboard of bearing outer lane (1), and contact ball (3) movable mounting is in the inside of holder (2), its characterized in that: the bearing body comprises a first bearing inner ring (4) and a second bearing inner ring (5), the first bearing inner ring (4) is positioned at the upper side of the second bearing inner ring (5), the first bearing inner ring (4) and the second bearing inner ring (5) are both positioned at the inner side of the retainer (2), a first contact groove (6) is formed in the outer wall of the first bearing inner ring (4), a second contact groove (7) is formed in the outer wall of the second bearing inner ring (5), the second contact groove (7) and the first contact groove (6) form a semicircle, the contact ball (3) is close to the first bearing inner ring (4) and the second bearing inner ring (5), the outer wall of the first bearing inner ring (4) is movably contacted with the second contact groove (7) and the first contact groove (6), a positioning pipe (9) is fixedly arranged at the bottom of the first bearing inner ring (4), a positioning clamping groove is formed in the upper side wall surface of the second bearing inner ring (5), a positioning clamping groove is formed in the inner wall of the positioning pipe (9), a positioning hole (8) is formed in the inner wall of the positioning pipe (9), a positioning pin (10) is movably clamped in the positioning clamping groove, a positioning pin (10) is movably clamped in the positioning pin (10) and is movably clamped in the positioning groove, the positioning pin (10) is fixedly clamped in the inner side wall of the positioning groove (10) and is fixedly clamped in the positioning pin (10) and fixedly arranged on the inner side surface (10) and is fixedly positioned on the inner side surface (10, an elastic element (12) is fixedly arranged on the surface of the front side wall surface of the connecting block (11) and the surface close to the inner wall of the positioning tube (9).
2. The multi-point contact ball bearing of claim 1, wherein: the bottom of the first bearing inner ring (4) is fixedly provided with a limiting rod (19), the upper side wall surface of the second bearing inner ring (5) is fixedly provided with a limiting clamping groove (18), the limiting clamping groove (18) and the limiting rod (19) are mutually matched, and the limiting rod (19) is movably clamped into the limiting clamping groove (18).
3. The multi-point contact ball bearing of claim 1, wherein: the bearing is characterized in that the upper side wall surface of the first bearing inner ring (4) is in threaded connection with a threaded column (13), an auxiliary groove (14) is formed in the upper side wall surface of the threaded column (13), the auxiliary groove (14) is in a regular hexagon shape, a connecting shaft (15) is rotatably arranged at the bottom of the threaded column (13), and the connecting shaft (15) is in a vertical state.
4. A multi-point contact ball bearing according to claim 3, wherein: the inside movable mounting of registration arm (9) has connecting plate (16) of looks adaptation, and connecting plate (16) are the disc, and connecting axle (15) fixed mounting is in the upper side wall face of connecting plate (16).
5. The multi-point contact ball bearing of claim 4, wherein: the bottom wall surface of the connecting plate (16) is fixedly provided with an extrusion block (17), the extrusion block (17) is rectangular, and the rear side wall surface of the extrusion block (17) and the front side wall surface of the connecting block (11) are in contact with each other.
6. The multi-point contact ball bearing of claim 5, wherein: the wall surfaces of the connecting block (11) and the extrusion block (17) which are in contact with each other are inclined surfaces, and the two inclined surfaces are in a state of being high at the back and low at the front.
7. The multi-point contact ball bearing of claim 1, wherein: the positioning tube (9) is matched with the positioning clamping groove, and the positioning pin (10) is matched with the inside of the positioning hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322890092.2U CN221097188U (en) | 2023-10-27 | 2023-10-27 | Multi-point contact ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322890092.2U CN221097188U (en) | 2023-10-27 | 2023-10-27 | Multi-point contact ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221097188U true CN221097188U (en) | 2024-06-07 |
Family
ID=91326781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322890092.2U Active CN221097188U (en) | 2023-10-27 | 2023-10-27 | Multi-point contact ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221097188U (en) |
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2023
- 2023-10-27 CN CN202322890092.2U patent/CN221097188U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |