CN215333417U - Oil-free vacuum pump - Google Patents
Oil-free vacuum pump Download PDFInfo
- Publication number
- CN215333417U CN215333417U CN202121385803.5U CN202121385803U CN215333417U CN 215333417 U CN215333417 U CN 215333417U CN 202121385803 U CN202121385803 U CN 202121385803U CN 215333417 U CN215333417 U CN 215333417U
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- end cover
- rotor
- vacuum pump
- oil
- hole
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Abstract
The utility model discloses an oil-free vacuum pump, which comprises an end cover and a vacuum pump body fixedly connected with the end cover through a screw rod, and is characterized in that: the two ends of the end cover are respectively provided with a slotted hole structure, a rotor which is connected with the two slotted hole structures and penetrates through the end cover is arranged in the end cover, a rotor groove is arranged on the outer ring of the rotor, and a graphite sliding sheet structure is arranged in the rotor groove. The utility model can solve the defects in the prior art, has simple structure, is more environment-friendly and is easy to maintain.
Description
Technical Field
The utility model relates to an oil-free vacuum pump.
Background
The vacuum pump drives the rotor to rotate through the belt pulley, the sliding vane in the rotor groove moves along the inner wall of the pump body, and air is discharged from the outlet through an eccentric structure, so that the purpose of vacuumizing is achieved, the traditional vacuum pump adopts a carbon fiber sliding vane, oil lubrication is needed during operation, waste oil is discharged during each work, and the environment is polluted; the applicant provides further improvement on the basis and designs an oil-free vacuum pump to meet the requirements of the existing market.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides an oil-free vacuum pump which is simple in structure, more environment-friendly and easy to maintain.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model provides an oil-free vacuum pump, including the end cover, with the end cover passes through screw rod fixed connection's the vacuum pump body, its characterized in that: the two ends of the end cover are respectively provided with a slotted hole structure, a rotor which is connected with the two slotted hole structures and penetrates through the end cover is arranged in the end cover, a rotor groove is arranged on the outer ring of the rotor, and a graphite sliding sheet structure is arranged in the rotor groove.
The graphite sliding vane structure comprises an end cover sliding vane and a rotor sliding vane, wherein the outer side face of the end cover sliding vane is connected with an end cover, the inner side face of the end cover sliding vane is connected with a vacuum pump body and the rotor sliding vane, and the outer ring face of the rotor sliding vane is connected with the vacuum pump body.
The utility model is further optimized, the slotted hole structure comprises a first through hole, a second through hole and a third through hole, the first through hole is provided with a deep groove ball bearing, and the third through hole is provided with a framework oil seal which is in contact with the rotor.
The utility model is further optimized, the outer side surface of the deep groove ball bearing is also provided with an elastic retainer ring for holes, and the deep groove ball bearing is connected with the rotor in a supporting manner.
The utility model is further optimized, and a plurality of cylindrical pins are arranged between the end cover and the end cover sliding sheet.
The utility model is further optimized, one end of the rotor extends out of the end cover and is connected with the belt pulley structure in a penetrating mode, and the diameter of the part of the rotor in the belt pulley structure is gradually reduced.
The utility model is further optimized, the belt pulley structure comprises a belt pulley main body and a hexagonal flange nut for fixing the rotor, and a gap is reserved between the belt pulley structure and the end cover.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model relates to an oil-free vacuum pump, which comprises an end cover and a vacuum pump body fixedly connected with the end cover through a screw rod, and is characterized in that: the two ends of the end cover are respectively provided with a slotted hole structure, a rotor which is connected with the two slotted hole structures and penetrates through the end cover is arranged in the end cover, a rotor groove is arranged on the outer ring of the rotor, and a graphite sliding sheet structure is arranged in the rotor groove. According to the utility model, the traditional structure is changed, the graphite slip sheet structure is arranged, the graphite slip sheets are adopted inside, lubricating oil is not required to be added during working, and the graphite slip sheet structure is more environment-friendly and easy to maintain.
Therefore, the utility model can overcome the defects in the prior art, has simple structure, is more environment-friendly and is easy to maintain.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.
In the drawings:
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the present invention.
In the figure: 1. an end cap; 2. framework oil seal; 3. a circlip for a hole; 4. a deep groove ball bearing; 5. a cylindrical pin; 6. end cover sliding sheets; 7. a vacuum pump body; 8. a rotor slip sheet; 9. a rotor; 10. a pulley body; 11. a hexagonal flange nut; 12. a rotor slot; 13. a first through hole; 14. a second through hole; 15. a third via.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1-2, the present invention is an oil-free vacuum pump, which comprises an end cap 1 and a vacuum pump body 7 fixedly connected with the end cap 1 through a screw, and is characterized in that: the structure of the graphite sliding vane is characterized in that two ends of the end cover 1 are respectively provided with a slotted hole structure, a rotor 9 which is connected with the two slotted hole structures and penetrates through the end cover 1 is arranged inside the end cover 1, a rotor groove 12 is arranged on the outer ring of the rotor 9, and a graphite sliding vane structure is arranged in the rotor groove 12. According to the utility model, the traditional structure is changed, the graphite slip sheet structure is arranged, the graphite slip sheets are adopted inside, lubricating oil is not required to be added during working, and the graphite slip sheet structure is more environment-friendly and easy to maintain.
According to the utility model, the graphite sliding vane structure comprises an end cover sliding vane 6 and a rotor sliding vane 8, wherein the outer side surface of the end cover sliding vane 6 is connected with an end cover 1, the inner side surface of the end cover sliding vane 6 is connected with a vacuum pump body 7 and the rotor sliding vane 8, and the outer ring surface of the rotor sliding vane 8 is connected with the vacuum pump body 7. According to the utility model, the rotor sliding sheet 8 moves along the inner wall of the pump body to discharge air from the outlet, and the end cover sliding sheet 6 and the rotor sliding sheet 8 are both supported by graphite, so that lubricating oil is not required to be added during working, and the pump is more environment-friendly and easy to maintain.
In the utility model, the groove hole structure comprises a first through hole 13, a second through hole 14 and a third through hole 15, wherein the first through hole 13 is provided with a deep groove ball bearing 4, and the third through hole 15 is provided with a framework oil seal 2 contacting with a rotor 9.
In the utility model, the outer side surface of the deep groove ball bearing 4 is also provided with an elastic retainer ring 3 for holes, and the deep groove ball bearing 4 is connected with the rotor 9 in a supporting way.
In the utility model, a plurality of cylindrical pins 5 are arranged between the end cover 1 and the end cover sliding sheet 6. The cylindrical pin 5 in the utility model enables the fixing effect between the end cover 1 and the end cover slide sheet 6 to be better.
In the utility model, one end of the rotor 9 extends out of the end cover 1 and is connected with a belt pulley structure in a penetrating way, and the diameter of the rotor 9 at the part of the belt pulley structure is gradually reduced. The belt pulley structure provides power for the vacuum pump.
In the utility model, the belt pulley structure comprises a belt pulley main body 10 and a hexagonal flange nut 11 for fixing the rotor 9, and a gap is reserved between the belt pulley structure and the end cover 1.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an oil-free vacuum pump, including the end cover, with the end cover passes through screw rod fixed connection's the vacuum pump body, its characterized in that: the two ends of the end cover are respectively provided with a slotted hole structure, a rotor which is connected with the two slotted hole structures and penetrates through the end cover is arranged in the end cover, a rotor groove is arranged on the outer ring of the rotor, and a graphite sliding sheet structure is arranged in the rotor groove.
2. An oil-free vacuum pump as claimed in claim 1, wherein: the graphite slip sheet structure comprises an end cover slip sheet and a rotor slip sheet, wherein the outer side face of the end cover slip sheet is connected with an end cover, the inner side face of the end cover slip sheet is connected with a vacuum pump body and the rotor slip sheet, and the outer annular face of the rotor slip sheet is connected with the vacuum pump body.
3. An oil-free vacuum pump as claimed in claim 1, wherein: the slotted hole structure comprises a first through hole, a second through hole and a third through hole, wherein a deep groove ball bearing is arranged on the first through hole, and a framework oil seal in contact with the rotor is arranged on the third through hole.
4. An oil-free vacuum pump as claimed in claim 3, wherein: and the outer side surface of the deep groove ball bearing is also provided with an elastic retainer ring for holes, and the deep groove ball bearing is connected with the rotor in a supporting manner.
5. An oil-free vacuum pump as claimed in claim 2, wherein: and a plurality of cylindrical pins are arranged between the end cover and the end cover sliding sheet.
6. An oil-free vacuum pump as claimed in claim 1, wherein: one end of the rotor extends out of the end cover and is connected with the belt pulley structure in a penetrating mode, and the diameter of the rotor at the part of the belt pulley structure is gradually reduced.
7. An oil-free vacuum pump as claimed in claim 6, wherein: the belt pulley structure comprises a belt pulley main body and a hexagonal flange nut for fixing the rotor, and a gap is reserved between the belt pulley structure and the end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121385803.5U CN215333417U (en) | 2021-06-22 | 2021-06-22 | Oil-free vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121385803.5U CN215333417U (en) | 2021-06-22 | 2021-06-22 | Oil-free vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215333417U true CN215333417U (en) | 2021-12-28 |
Family
ID=79560098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121385803.5U Active CN215333417U (en) | 2021-06-22 | 2021-06-22 | Oil-free vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215333417U (en) |
-
2021
- 2021-06-22 CN CN202121385803.5U patent/CN215333417U/en active Active
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