CN214304501U - Novel bearing for turbomolecular pump - Google Patents
Novel bearing for turbomolecular pump Download PDFInfo
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- CN214304501U CN214304501U CN202023223259.2U CN202023223259U CN214304501U CN 214304501 U CN214304501 U CN 214304501U CN 202023223259 U CN202023223259 U CN 202023223259U CN 214304501 U CN214304501 U CN 214304501U
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- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a novel bearing for turbo molecular pump, including outer lane, inner circle, a plurality of ball and two holders, be provided with a plurality of pocket holes on the holder, be provided with two pocket boards in the pocket hole, the outside of outer lane is provided with the collar, be provided with a plurality of connecting hole on the inner wall of collar, be provided with the connecting block in the connecting hole, the one end of collar is provided with a plurality of screw hole, be provided with a plurality of draw-in groove on the outer wall of outer lane, draw-in groove and connecting block correspond the setting, the inboard of inner circle is provided with the rubber layer, the inboard on rubber layer is provided with the retainer plate. The pocket plate can move, the moving range of the balls can be enlarged, the mounting ring is fixed through the connecting block and the fixing bolt, the fixing mode is simple, and the rubber layer can buffer the vibration of the fixing ring.
Description
Technical Field
The utility model relates to a deep groove ball bearing technical field specifically is a novel bearing for turbo molecular pump.
Background
The turbo molecular pump is a vacuum pumping pump, the rotating speed of a rotor of the turbo molecular pump can reach tens of thousands of revolutions per second when the turbo molecular pump is used, the rotor of the molecular pump can vibrate in the rotating process, so that the bearings inside the molecular pump can vibrate together, the service life of the bearings in vibration can be greatly reduced, when the bearings are installed, in order to ensure that the bearings are fixed firmly enough, the positions for installing the bearings can be complex, the installation process is complex, the bearings are inconvenient to detach and install, and when the bearings rotate at a high speed, because the rolling units inside the bearings are clamped on the retainer, gaps between the rolling units and the retainer are small, when the bearings rotate at a high speed, the friction between the rolling units and the retainer can be large, and the rolling units are greatly damaged.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
To the not enough of prior art, the utility model provides a novel bearing for turbo molecular pump.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme:
a novel bearing for a turbo molecular pump comprises an outer ring, an inner ring, a plurality of balls and two retainers, wherein the retainers are provided with a plurality of pocket holes, the retainers are arranged between the inner ring and the outer ring, the retainers are arranged in a polygon shape and correspond to the balls, the pocket holes are arranged in the polygon shape, two pocket plates are arranged in the pocket holes, the balls are arranged between the pocket plates, the pocket plates and the pocket holes are correspondingly arranged, springs and guide posts are arranged on the outer sides of the pocket plates, guide holes are arranged on the inner walls of the pocket holes, the guide posts and the springs are arranged in the guide holes, a mounting ring is arranged on the outer side of the outer ring, a plurality of connecting holes are arranged on the inner wall of the mounting ring, connecting blocks are arranged in the connecting holes, a plurality of threaded holes are arranged at one end of the mounting ring, and the threaded holes extend to the connecting holes, the novel rubber ring is characterized in that a fixing bolt is arranged in the threaded hole, the bottom end of the fixing bolt is set to be conical, a conical groove is formed in one end, arranged in the connecting hole, of the connecting block, the conical groove and the fixing bolt are correspondingly arranged, a plurality of clamping grooves are formed in the outer wall of the outer ring, the clamping grooves and the connecting block are correspondingly arranged, the inner side of the inner ring is provided with a rubber layer, a reinforcing sheet is arranged in the middle of the rubber layer, the reinforcing sheet is arranged to be wavy, and the inner side of the rubber layer is provided with a fixing ring.
Preferably, one end of the connecting block, which is arranged in the connecting hole, is arranged in a T shape and is arranged corresponding to the fixing bolt.
In a further preferred embodiment, the inner side of the pocket plate is provided in an arc shape.
In a further preferred embodiment, both sides of the rubber layer and the inner side of the inner ring or the outer side of the stationary ring are connected by adhesion.
In a further preferred mode, the connecting block is arranged in the clamping groove, and one end of the connecting block is arranged in a triangular shape.
In a further preferred embodiment, the threaded hole is provided in a T-shape.
In a further preferred mode, the upper end and the lower end of the pocket plate are provided with sliding grooves.
In a further preferred mode, the outer side of the outer ring is provided with a limiting strip, the inner side of the mounting ring is provided with a limiting groove, and the limiting strip is arranged in the limiting groove.
(III) advantageous effects
Compared with the prior art, the utility model provides a novel bearing for turbo molecular pump possesses following beneficial effect:
the utility model discloses in the time of the inner circle is rotatory, can make the ball roll round the inner circle, and then make two pocket boards in the pocket hole keep away from each other, increase the home range of ball, reduce the friction between ball and the pocket board, make the wearing and tearing of ball alleviate, polygonal pocket hole makes the pocket board also be the polygon, the area of contact between pocket board and the ball reduces greatly, the friction of pocket board and ball also can reduce greatly, guiding hole protection spring, the guide post can also transmit the elasticity of spring when playing the guide effect, the collar is installed on turbo molecular pump, the inboard of collar is installed to the outer lane, make the connecting block fixed through the bottom of fixing bolt, make the connecting block fix in the draw-in groove, fix the outer lane inside the collar, the connected mode is simple, firm, and simple structure, the axle of molecular pump is fixed to the centre of retainer plate, the rubber layer between retainer plate and the inner circle can alleviate vibrations when the axle of molecular pump shakes, avoid too strong vibration.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic front view of the retainer of the present invention;
FIG. 3 is a schematic top view of the cross-sectional structure of the present invention;
FIG. 4 is a schematic structural view of a mounting ring of the present invention;
FIG. 5 is a schematic structural diagram of a middle rubber layer according to the present invention;
FIG. 6 is an enlarged view of a portion of A in FIG. 1;
fig. 7 is an enlarged view of a portion of B in fig. 3.
In the figure: 1. an outer ring; 2. an inner ring; 3. a ball bearing; 4. a holder; 5. a pocket hole; 6. a pocket plate; 7. a spring; 8. a guide post; 9. a guide hole; 10. a mounting ring; 11. connecting holes; 12. connecting blocks; 13. a threaded hole; 14. fixing the bolt; 15. a tapered groove; 16. a card slot; 17. a rubber layer; 18. a reinforcing sheet; 19. a stationary ring; 20. a chute; 21. a limiting strip; 22. a limiting groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example (b):
referring to fig. 1-7, a novel bearing for a turbomolecular pump includes an outer ring 1, an inner ring 2, a plurality of balls 3, and two cages 4, wherein the cages 4 are provided with a plurality of pockets 5, the cages 4 are disposed between the inner ring 2 and the outer ring 1, the cages 4 are disposed in a polygonal shape and correspond to the balls 3, the pockets 5 are disposed in a polygonal shape, two pocket plates 6 are disposed in the pockets 5, the balls 3 are disposed between the pocket plates 6, the pocket plates 6 and the pockets 5 are disposed correspondingly, springs 7 and guide posts 8 are disposed on outer sides of the pocket plates 6, guide holes 9 are disposed on inner walls of the pockets 5, the guide posts 8 and the springs 7 are disposed in the guide holes 9, a mounting ring 10 is disposed on outer side of the outer ring 1, a plurality of connection holes 11 are disposed on inner walls of the mounting ring 10, connection blocks 12 are disposed in the connection holes 11, one end of the mounting ring 10 is provided with a plurality of screw hole 13, screw hole 13 extends to connecting hole 11, be provided with fixing bolt 14 in the screw hole 13, fixing bolt 14's bottom sets up to the toper, connecting block 12 sets up the one end in connecting hole 11 and is provided with tapered groove 15, tapered groove 15 and fixing bolt 14 correspond the setting, be provided with a plurality of draw-in groove 16 on the outer wall of outer lane 1, draw-in groove 16 and connecting block 12 correspond the setting, the inboard of inner circle 2 is provided with rubber layer 17, the centre of rubber layer 17 is provided with reinforcing plate 18, reinforcing plate 18 sets up to wavy, the inboard of rubber layer 17 is provided with retainer plate 19.
In this embodiment, one end of the connecting block 12 disposed in the connecting hole 11 is provided in a T shape and is disposed corresponding to the fixing bolt 14. The connecting block 12 with one end in a T shape can be fixed in the connecting hole 11 and cannot be separated from the connecting hole 11, so that the connecting block 12 is prevented from being lost after falling out of the connecting hole 11.
In this embodiment, the inner side of the pocket plate 6 is provided in an arc shape. The arc-shaped pocket plate 6 inner side can clamp the rolling ball between the pocket plates 6, so that the rolling ball can be clamped between the pocket plates 6.
In the present embodiment, both sides of the rubber layer 17 and the inner side of the inner ring 2 or the outer side of the fixing ring 19 are connected by bonding. The rubber layer 17 may be fixed to the stationary ring 19 and the inner ring 2 by bonding, and the rubber layer 17, the stationary ring 19, and the inner ring 2 may be rotated in synchronization with each other.
In this embodiment, the connecting block 12 is disposed in the slot 16, and one end of the connecting block is triangular. At the end of the triangular connecting block 12, the clamping groove 16 is arranged corresponding to the connecting block 12, the clamping groove 16 is also triangular, and the triangular connecting block 12 enables the connecting block 12 to easily leave from the clamping groove 16.
In the present embodiment, the threaded hole 13 is provided in a T shape. The T-shaped holes allow the ends of the fixing bolts 14 to be embedded in the mounting ring 10, keeping the surface of the mounting ring 10 flat and more aesthetically pleasing.
In this embodiment, the pocket plate 6 is provided at upper and lower ends thereof with slide grooves 20. The chute 20 and the guide post 8 make the fixing of the pocket plate 6 in the pocket 5 more stable, and if the guide post 8 is accidentally separated from the guide hole 9, the chute 20 also fixes the pocket plate 6.
In this embodiment, the outer side of the outer ring 1 is provided with a limiting strip 21, the inner side of the mounting ring 10 is provided with a limiting groove 22, and the limiting strip 21 is arranged in the limiting groove 22. The limiting strip 21 and the limiting groove 22 can ensure that the connecting block 12 can be inserted into the clamping groove 16.
The working principle is as follows:
to sum up, when in use, the outer ring 1 is inserted into the mounting ring 10, because the end of the connecting block 12 is triangular, the outer ring 1 can easily push the connecting ring into the connecting hole 11, when the outer ring 1 enters the mounting ring 10 and the connecting block 12 is already inserted into the slot 16, the fixing bolt 14 is inserted into the threaded hole 13, the bottom of the fixing bolt 14 contacts the connecting block 12, one end of the connecting block 12 in the connecting hole 11 has a tapered groove 15, the tapered groove 15 is semi-conical, so that the bottom of the fixing bolt 14 can be inserted to avoid the fixing bolt 14 from being clamped by the connecting block 12, the fixing bolt 14 pushes the connecting block 12 out of the connecting hole 11, the connecting block 12 is inserted into the slot 16, after the fixing bolt 14 enters the threaded hole 13 completely, the connecting block 12 is fixed by the fixing bolt 14 and cannot be pulled out of the slot 16, when the outer ring 1 is disassembled, the fixing bolt 14 is pulled out, the connecting block 12 can move, the connecting block 12 can be pulled out from the clamping groove 16, because one end of the connecting block 12 inserted into the clamping groove 16 is triangular, the outer ring 1 can be directly pulled out, the shaft of the turbo molecular pump is inserted into the fixed ring 19 and fixed, after the molecular pump is started, the fixed ring 19, the rubber layer 17 and the inner ring 2 synchronously rotate, when the shaft of the molecular pump vibrates, the rubber layer 17 can buffer the vibration of the shaft of the molecular pump, the reinforcing ring in the rubber layer 17 can increase the strength of the rubber layer 17, so that the rubber layer 17 is not easy to damage, when the inner ring 2 rotates, the balls 3 can rotate, the ball 3 rotates to enable the pocket plate 6 to move to two sides of the balls 3, the moving range of the balls 3 is expanded, the guide column 8 is inserted into the guide hole 9 and enables the spring 7 to be compressed, in order to enable the pocket plate 6 to better move, the retainer 4 is polygonal, the number of edges is the same as the number of the balls 3, the guiding hole 9 can protect spring 7, and the guide post 8 can enough play the effect of direction, also can play the effect of the elasticity of transmission spring 7, and the existence of spout 20 makes the fixed of pocket board 6 more stable, avoids guide post 8 to break away from in the direct pocket 5 of following of back from the guiding hole 9.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a novel bearing for turbo molecular pump, includes outer lane (1), inner circle (2), a plurality of ball (3) and two holder (4), be provided with a plurality of pockets (5) on holder (4), holder (4) set up between inner circle (2) and outer lane (1), its characterized in that: the ball bearing is characterized in that the retainer (4) is polygonal and corresponds to the balls (3), the pocket hole (5) is polygonal, two pocket plates (6) are arranged in the pocket hole (5), the balls (3) are arranged between the pocket plates (6), the pocket plates (6) and the pocket hole (5) are correspondingly arranged, a spring (7) and a guide post (8) are arranged on the outer side of the pocket plate (6), a guide hole (9) is formed in the inner wall of the pocket hole (5), the guide post (8) and the spring (7) are arranged in the guide hole (9), a mounting ring (10) is arranged on the outer side of the outer ring (1), a plurality of connecting holes (11) are formed in the inner wall of the mounting ring (10), a connecting block (12) is arranged in the connecting holes (11), a plurality of threaded holes (13) are formed in one end of the mounting ring (10), the utility model discloses a fixing device for the automobile seat, including connecting hole (11), screw hole (13), connecting block (12), taper groove (15) and fixing bolt (14), the bottom of fixing bolt (14) sets up to the toper, the one end that connecting block (12) set up in connecting hole (11) is provided with taper groove (15), taper groove (15) and fixing bolt (14) correspond the setting, be provided with a plurality of draw-in groove (16) on the outer wall of outer lane (1), draw-in groove (16) and connecting block (12) correspond the setting, the inboard of inner circle (2) is provided with rubber layer (17), the centre on rubber layer (17) is provided with reinforcing plate (18), reinforcing plate (18) set up to wavy, the inboard of rubber layer (17) is provided with retainer plate (19).
2. The novel bearing for a turbomolecular pump according to claim 1, wherein: one end of the connecting block (12) arranged in the connecting hole (11) is T-shaped and is arranged corresponding to the fixing bolt (14).
3. The novel bearing for a turbomolecular pump according to claim 1, wherein: the inner side of the pocket plate (6) is arc-shaped.
4. The novel bearing for a turbomolecular pump according to claim 1, wherein: the two sides of the rubber layer (17) are connected with the inner side of the inner ring (2) or the outer side of the fixed ring (19) in an adhesion mode.
5. The novel bearing for a turbomolecular pump according to claim 1, wherein: one end of the connecting block (12) arranged in the clamping groove (16) is triangular.
6. The novel bearing for a turbomolecular pump according to claim 1, wherein: the threaded hole (13) is T-shaped.
7. The novel bearing for a turbomolecular pump according to claim 1, wherein: the upper end and the lower end of the pocket plate (6) are provided with sliding chutes (20).
8. The novel bearing for a turbomolecular pump according to claim 1, wherein: the outer side of the outer ring (1) is provided with a limiting strip (21), the inner side of the mounting ring (10) is provided with a limiting groove (22), and the limiting strip (21) is arranged in the limiting groove (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023223259.2U CN214304501U (en) | 2020-12-28 | 2020-12-28 | Novel bearing for turbomolecular pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023223259.2U CN214304501U (en) | 2020-12-28 | 2020-12-28 | Novel bearing for turbomolecular pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214304501U true CN214304501U (en) | 2021-09-28 |
Family
ID=77862897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023223259.2U Expired - Fee Related CN214304501U (en) | 2020-12-28 | 2020-12-28 | Novel bearing for turbomolecular pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214304501U (en) |
-
2020
- 2020-12-28 CN CN202023223259.2U patent/CN214304501U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210928 |