CN220227120U - Bearing lubricating structure for vacuum pump - Google Patents
Bearing lubricating structure for vacuum pump Download PDFInfo
- Publication number
- CN220227120U CN220227120U CN202321946321.1U CN202321946321U CN220227120U CN 220227120 U CN220227120 U CN 220227120U CN 202321946321 U CN202321946321 U CN 202321946321U CN 220227120 U CN220227120 U CN 220227120U
- Authority
- CN
- China
- Prior art keywords
- oil
- bearing
- vacuum pump
- oil tank
- hole
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Links
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 14
- 238000005461 lubrication Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 91
- 239000000498 cooling water Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model relates to the technical field of vacuum pumps and discloses a bearing lubricating structure for a vacuum pump, which is characterized by comprising a motor, an oil tank and a vacuum pump rotor, wherein the motor comprises a shell and a motor rotor, the shell is detachably connected with the oil tank, a shaft hole is formed in the oil tank, oil at the bottom of the oil tank centrifugally moves through rotation of a gear, and the oil enters a guide groove in the process of being thrown and flows to a bearing mounting hole through an oil guide hole so as to lubricate a bearing, and excessive oil flows into the shell and flows back to the oil tank through the oil hole, so that the bearing is always in a lubricating state, and the oil guide plate extends into the oil tank, so that the thrown oil drops onto the oil guide plate more easily and flows on the oil guide plate, and flows to the oil guide hole.
Description
Technical Field
The utility model relates to the technical field of vacuum pumps, in particular to a bearing lubrication structure for a vacuum pump.
Background
The vacuum pump is used for pumping the pumped container to obtain vacuum devices, has various types, uses different types of vacuum pumps according to different working pressure ranges and working requirements, and is sometimes used in a unit type for combining various vacuum pumps according to the performance requirements for convenience in use and the requirements of various vacuum technological processes;
the vacuum pump rotor on the vacuum pump is connected through the bearing, and after the vacuum pump works for a long time, lubrication at the bearing is difficult to keep, and the machine is stopped and lubricating oil is required to be added.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a bearing lubrication structure for a vacuum pump, which is used for always keeping lubrication at a bearing.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a bearing lubricating structure for vacuum pump, includes motor, oil tank and vacuum pump rotor, the motor includes shell and motor rotor, motor rotor with vacuum pump rotor connects, the shell with the oil tank can dismantle the connection, the shaft hole has been seted up on the oil tank, shaft hole department fixedly connected with bearing frame, set up the bearing mounting hole in the bearing frame, fixedly connected with bearing in the bearing mounting hole, vacuum pump rotor with the inner circle fixed connection of bearing, and extend into in the oil tank, be provided with the gear in the oil tank, the gear with vacuum pump rotor fixed connection, the guide slot has been seted up on the oil tank, the oil hole has still been seted up on the bearing frame, the guide slot passes through the oil hole with bearing mounting hole intercommunication, the oil hole has been seted up to the oil tank bottom, the oil hole intercommunication the oil tank with the shell.
As a further improvement of the utility model, one side of the oil tank, which is close to the gear, is detachably connected with an oil guide plate, and the oil guide plate is attached to the bearing seat.
As a further improvement of the present utility model, the oil guide plate is bent and inclined obliquely upward toward one side of the gear.
As a further improvement of the utility model, the two opposite sides of the oil guide plate are uniformly and integrally formed with baffle plates.
As a further improvement of the utility model, the baffle plates are obliquely arranged, and the two baffle plates are mutually folded towards one side of the oil guide hole.
As a further improvement of the utility model, the shell comprises an outer layer and an inner layer, a cooling cavity is formed between the outer layer and the inner layer, a water inlet and a water outlet are formed in the outer layer, and the water inlet and the water outlet are communicated with the cooling cavity.
As a further development of the utility model, the cooling chamber is spiral.
As a further improvement of the present utility model, the bottom wall of the guide groove is provided obliquely downward toward the oil guide hole side.
The utility model has the beneficial effects that: according to the utility model, oil at the bottom of the oil tank performs centrifugal movement through rotation of the gear, oil enters the guide groove in the process of being thrown, flows to the bearing mounting hole through the oil guide hole, so that the bearing is lubricated, redundant oil flows into the shell and flows back to the oil tank through the oil hole, the bearing can be ensured to be always in a lubricating state, and the oil guide plate part extends into the oil tank, so that the thrown oil drops on the oil guide plate more easily and flows on the oil guide plate, so that the oil flows to the oil guide hole.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
FIG. 3 is a schematic view of the structure of the fuel tank of the present utility model;
FIG. 4 is a schematic view of the structure of the oil guide plate according to the present utility model;
FIG. 5 is a schematic diagram of the connection structure of the oil tank, the bearing seat and the oil guide plate in the utility model;
fig. 6 is a schematic view of the structure of the bearing housing in the present utility model.
Reference numerals: 1. a motor; 11. a housing; 12. a motor rotor; 13. a cooling chamber; 14. a water inlet; 15. a water outlet; 2. an oil tank; 21. a shaft hole; 22. a gear; 24. a guide groove; 23. an oil hole; 3. a bearing seat; 31. bearing mounting holes; 32. an oil guide hole; 4. a bearing; 5. an oil guide plate; 51. a baffle; 6. a vacuum pump rotor.
Detailed Description
The utility model will now be described in further detail with reference to the drawings and examples. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
Referring to fig. 1 to 6, a bearing lubrication structure for a vacuum pump of the present embodiment includes a motor 1, an oil tank 2 and a vacuum pump rotor 6, wherein one side of the oil tank 2 facing away from the motor 1 is connected with a housing of the pump to form a seal, the vacuum pump rotor 6 extends into the pump, the motor 1 includes a housing 11 and a motor rotor 12, the motor rotor 12 is connected with the vacuum pump rotor 6, the housing 11 is detachably connected with the oil tank 2, and the housing 11 is connected with the oil tank 2 through bolts;
the oil tank 2 is provided with a shaft hole 21, the shaft hole 21 is fixedly connected with a bearing seat 3, a bearing mounting hole 31 is formed in the bearing seat 3, a bearing 4 is fixedly connected in the bearing mounting hole 31, an outer ring of the bearing 4 is fixedly connected with the bearing seat 3, the vacuum pump rotor 6 is fixedly connected with an inner ring of the bearing 4 and extends into the oil tank 2, so that the vacuum pump rotor 6 can rotate, a gear 22 is arranged in the oil tank 2, the gear 22 can be a straight gear or a helical gear, the outer diameter of the gear 22 is larger, oil is arranged in the oil tank 2, the gear 22 is driven to rotate by the vacuum pump rotor 6, and at least part of the gear 22 is contacted with the oil, so that the gear 22 can drive the oil to move in the rotating process, and the oil is thrown out;
the gear 22 is fixedly connected with the vacuum pump rotor 6, the oil tank 2 is provided with the guide groove 24, the bearing seat 3 is also provided with the oil guide hole 32, the guide groove 24 is communicated with the bearing mounting hole 31 through the oil guide hole 32, the bottom of the oil tank 2 is provided with the oil hole 23, the oil hole 23 is communicated with the oil tank 2 and the shell 11, oil can enter the guide groove 24 in the process of being thrown, and flows to the bearing mounting hole 31 through the oil guide hole 32, so that the bearing 4 is lubricated, and redundant oil can flow into the shell 11 and flow back to the oil tank 2 through the oil hole 23, so that the bearing 4 can be ensured to be always in a lubrication state.
Referring to fig. 3 and 5, an oil guide plate 5 is detachably connected to one side of the oil tank 2 near the gear 22, the oil guide plate 5 is attached to the bearing seat 3, and the oil guide plate 5 is partially extended into the oil tank 2, so that the thrown oil is more likely to drop on the oil guide plate 5 and flow on the oil guide plate 5, thereby flowing to the oil guide hole 32.
Referring to fig. 4, the oil guide plate 5 is bent and inclined obliquely upward toward the gear 22, the oil guide plate 5 includes a vertical plate and a sloping plate integrally formed with the vertical plate, the sloping plate is inclined obliquely upward and toward the gear 22, wherein the vertical plate is fixed with the oil tank 2 by bolts and is attached to the bearing housing 3, and when oil falls on the sloping plate, the oil can flow to the oil guide hole 32 by gravity.
The baffle plates 51 are integrally formed on the two opposite sides of the oil guide plate 5, so that oil is prevented from flowing out from the two opposite sides of the oil guide plate 5, and more oil can flow to the oil guide holes 32 to lubricate the bearing 4.
The baffles 51 are obliquely arranged, and the two baffles 51 are mutually folded towards one side of the oil guide hole 32, so that oil can flow towards the oil guide hole 32, and the baffles have a folding effect on the oil.
Referring to fig. 2, the casing 11 includes an outer layer and an inner layer, a cooling cavity 13 is formed between the outer layer and the inner layer, a water inlet 14 and a water outlet 15 are formed on the outer layer, the water inlet 14 and the water outlet 15 are all communicated with the cooling cavity 13, the casing 11 is cooled through the cooling cavity 13, the motor 1 is prevented from being excessively high in temperature, cooling water is introduced into the water inlet 14, and after flowing through the cooling cavity 13, the cooling water flows out from the water outlet 15.
The cooling cavity 13 is spiral, the cooling length of the cooling cavity 13 is prolonged, and only one water inlet 14 and one water outlet 15 are needed.
As shown in fig. 3, the bottom wall of the guide groove 24 is inclined downward toward the oil guide hole 32, and may serve as a guide, so that oil can flow toward the oil guide hole 32 by gravity when it drops onto the bottom wall of the guide groove 24.
The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (8)
1. A bearing lubricating structure for a vacuum pump is characterized in that: comprises a motor (1), an oil tank (2) and a vacuum pump rotor (6), the motor (1) comprises a housing (11) and a motor rotor (12), the motor rotor (12) is connected with the vacuum pump rotor (6), the shell (11) is detachably connected with the oil tank (2), the oil tank (2) is provided with a shaft hole (21), the shaft hole (21) is fixedly connected with a bearing seat (3), a bearing mounting hole (31) is arranged in the bearing seat (3), a bearing (4) is fixedly connected in the bearing mounting hole (31), the vacuum pump rotor (6) is fixedly connected with the inner ring of the bearing (4), and extends into the oil tank (2), a gear (22) is arranged in the oil tank (2), the gear (22) is fixedly connected with the vacuum pump rotor (6), the oil tank (2) is provided with a guide groove (24), the bearing seat (3) is also provided with an oil guide hole (32), the guide groove (24) is communicated with the bearing mounting hole (31) through the oil guide hole (32), an oil hole (23) is formed in the bottom of the oil tank (2), and the oil hole (23) is communicated with the oil tank (2) and the shell (11).
2. The bearing lubrication structure for a vacuum pump according to claim 1, wherein: one side of the oil tank (2) close to the gear (22) is detachably connected with an oil guide plate (5), and the oil guide plate (5) is attached to the bearing seat (3).
3. The bearing lubrication structure for a vacuum pump according to claim 2, wherein: the oil guide plate (5) is bent and inclined obliquely upward toward one side of the gear (22).
4. The bearing lubrication structure for a vacuum pump according to claim 2, wherein: baffle plates (51) are uniformly formed on two opposite sides of the oil guide plate (5).
5. The bearing lubrication structure for a vacuum pump according to claim 4, wherein: the baffles (51) are obliquely arranged, and two baffles (51) are mutually folded towards one side of the oil guide hole (32).
6. The bearing lubrication structure for a vacuum pump according to claim 1, wherein: the shell (11) comprises an outer layer and an inner layer, a cooling cavity (13) is formed between the outer layer and the inner layer, a water inlet (14) and a water outlet (15) are formed in the outer layer, and the water inlet (14) and the water outlet (15) are communicated with the cooling cavity (13).
7. The bearing lubrication structure for a vacuum pump according to claim 6, wherein: the cooling cavity (13) is spiral.
8. The bearing lubrication structure for a vacuum pump according to claim 1, wherein: the bottom wall of the guide groove (24) is arranged obliquely downwards towards one side of the oil guide hole (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321946321.1U CN220227120U (en) | 2023-07-24 | 2023-07-24 | Bearing lubricating structure for vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321946321.1U CN220227120U (en) | 2023-07-24 | 2023-07-24 | Bearing lubricating structure for vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220227120U true CN220227120U (en) | 2023-12-22 |
Family
ID=89187422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321946321.1U Active CN220227120U (en) | 2023-07-24 | 2023-07-24 | Bearing lubricating structure for vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220227120U (en) |
-
2023
- 2023-07-24 CN CN202321946321.1U patent/CN220227120U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |