CN219472332U - Flexible sealing structure of vacuum pump - Google Patents
Flexible sealing structure of vacuum pump Download PDFInfo
- Publication number
- CN219472332U CN219472332U CN202320156469.9U CN202320156469U CN219472332U CN 219472332 U CN219472332 U CN 219472332U CN 202320156469 U CN202320156469 U CN 202320156469U CN 219472332 U CN219472332 U CN 219472332U
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- rotor
- rotary vane
- rotary
- vacuum pump
- roller
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Abstract
The utility model discloses a flexible sealing structure of a vacuum pump, which belongs to the technical field of vacuum pumps and comprises a rotor, wherein the rotor is eccentrically arranged in a pump cavity, and is characterized in that: the rotor is provided with a plurality of groups of rotary blades, the rotary blades are of arc structures, the inner ends of the rotary blades are connected with the rotor through hinge devices, the inner sides of the rotary blades are connected with the rotor through spring devices, and the outermost ends of the rotary blades are provided with roller devices. The arc-shaped rotary vane is adopted in the vacuum pump, and is folded and unfolded through the hinge device and the spring device, and the rotary vane does not directly slide with the rotor, so that abrasion in the telescoping process of the rotary vane is avoided, and the service life of the rotary vane is prolonged; the roller device is additionally arranged at the outermost end of the rotary vane, and the roller device can change the friction between the outermost end of the rotary vane and the inner wall of the pump body into rolling friction, so that the rotor is more lubricated in movement, and the abrasion and the motor energy consumption are reduced.
Description
Technical Field
The utility model belongs to the technical field of vacuum pumps, and particularly relates to a flexible sealing structure of a vacuum pump.
Background
The rotary vane vacuum pump is a vacuum pump comprising stator and rotor, the rotor of the rotary vane vacuum pump is eccentrically installed in the pump cavity, and at least two rotary vanes contacting with the inner wall of the pump body are installed on the rotor.
As shown in fig. 1, which shows the internal structure of the existing rotary vane vacuum pump, when the rotor rotates, the rotary vane divides the pump cavity into chambers with different sizes, thereby completing the suction; however, the rotary vane of the existing rotary vane vacuum pump is movably arranged in the rotor groove, the rotary vane slides in and slides out in the groove along with rotation, abrasion of the rotary vane is large in the working process, the suction effect of the vacuum pump is affected, the top end of the rotary vane always keeps contact with the inner wall of the pump body, friction force is large in the rotation process, on one hand, energy consumption of a motor is large, and on the other hand, the service life of the rotary vane is also affected.
Disclosure of Invention
The utility model aims to provide a flexible sealing structure of a vacuum pump, which aims to solve the problem of the prior vacuum pump in the use process in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a flexible seal structure of vacuum pump, includes the rotor, the rotor eccentric mounting is in the pump chamber, be provided with plural set of rotary vane on the rotor, the rotary vane is the arc structure, the inner and the rotor of rotary vane pass through hinge device and are connected, the inboard of rotary vane passes through spring device and is connected with the rotor, the outermost end of rotary vane is provided with roller device.
Preferably, the rotary blades are provided with three groups.
Preferably, the radius of the rotary vane is the same as that of the rotor, and a rotary vane groove matched with the rotary vane is formed in the position of the rotary vane of the rotor.
Preferably, the roller device comprises a roller fixing frame, a roller rotating pin shaft and a roller.
Preferably, the spring device comprises a support seat, a spring and a spring seat pin.
Preferably, the hinge device comprises a hinge pin shaft and a hinge shaft sleeve.
Compared with the prior art, the utility model has the beneficial effects that:
the arc-shaped rotary vane is adopted in the vacuum pump, and is folded and unfolded through the hinge device and the spring device, and the rotary vane does not directly slide with the rotor, so that abrasion in the telescoping process of the rotary vane is avoided, and the service life of the rotary vane is prolonged; the roller device is additionally arranged at the outermost end of the rotary vane, and the roller device can change the friction between the outermost end of the rotary vane and the inner wall of the pump body into rolling friction, so that the rotor is more lubricated in movement, and the abrasion and the motor energy consumption are reduced.
Drawings
FIG. 1 is a schematic view of a rotor seal structure of the present prior art rotary vane pump;
FIG. 2 is a schematic view of a rotor seal structure according to the present utility model;
fig. 3 is a schematic view of a rotary vane structure according to the present utility model.
In the figure: 1. a rotor; 2. a rotary vane; 3. a roller device; 31. a roller; 32. a roller fixing frame; 33. the idler wheel rotates the pin shaft; 4. a spring device; 41. a support base; 42. a spring seat; 43. a spring; 44. a spring seat; 5. a hinge device; 51. a hinge shaft sleeve; 52. hinge pin.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, a flexible sealing structure of a vacuum pump comprises a rotor 1, wherein the rotor 1 is eccentrically arranged in a pump cavity, a plurality of groups of rotary blades 2 are arranged on the rotor 1, the rotary blades 2 are of arc structures, the inner ends of the rotary blades 2 are connected with the rotor 1 through hinge devices 5, the inner sides of the rotary blades 2 are connected with the rotor 1 through spring devices 4, and roller devices 3 are arranged at the outermost ends of the rotary blades 2.
As shown in fig. 2-3, the rotary vane 2 of the scheme is connected with the rotor 1 through the hinge device 5 and the spring device 4, the rotary vane 2 does not directly slide with the rotor 1, so that abrasion in the expansion process of the rotary vane 2 is avoided, the service life of the rotary vane 2 is prolonged, meanwhile, the roller device 3 is additionally arranged at the outermost end of the rotary vane 2, and friction between the outermost end of the rotary vane 2 and the inner wall of the pump body can be changed into rolling friction by the roller device 3, so that the rotor 1 moves more lubricationally, and abrasion and motor energy consumption are reduced.
Further, the rotary vane 2 is provided with three groups.
According to the technical scheme, the pump cavity is divided into three chambers by the three groups of rotary blades 2 and the rotor 1, and as the rotor 1 rotates, the air in the exhausted chamber is compressed, so that the exhaust valve is pushed away to exhaust, and the air in the inlet chamber is gradually expanded to present negative pressure, so that the air in the target container is pumped out.
Further, the radius of the rotary vane 2 is the same as that of the rotor 1, and the rotor 1 is provided with a rotary vane groove matched with the rotary vane 2 at the position of the rotary vane 2.
Further, the roller device 3 includes a roller fixing frame 32, a roller rotating pin 33, and a roller 31.
Further, the spring device 4 comprises a support seat 41, a spring seat 43, a spring 43 and a spring seat 43 pin.
Further, the hinge device 5 includes a hinge pin 52 and a hinge sleeve 51.
Working principle: the rotary vane 2 of this scheme is connected with rotor 1 through hinge device 5 and spring device 4, and the rotary vane 2 itself does not directly take place to slide with rotor 1 to avoided the wearing and tearing of the flexible process of rotary vane 2, thereby promoted the life of rotary vane 2, the roller device 3 is installed to the outer end of rotary vane 2 additional simultaneously, and roller device 3 can let the friction of the outer end of rotary vane 2 and the pump body inner wall become rolling friction, thereby makes rotor 1 motion more lubricated, reduces wearing and tearing and motor energy consumption.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a flexible seal structure of vacuum pump, includes the rotor, the eccentric mounting of rotor is in the pump chamber, its characterized in that: the rotor is provided with a plurality of groups of rotary blades, the rotary blades are of arc structures, the inner ends of the rotary blades are connected with the rotor through hinge devices, the inner sides of the rotary blades are connected with the rotor through spring devices, and the outermost ends of the rotary blades are provided with roller devices.
2. A flexible sealing structure of a vacuum pump according to claim 1, wherein: the rotary vane is provided with three groups.
3. A flexible sealing structure of a vacuum pump according to claim 1, wherein: the radius of the rotary vane is the same as that of the rotor, and a rotary vane groove matched with the rotary vane is formed in the position of the rotary vane of the rotor.
4. A flexible sealing structure of a vacuum pump according to claim 1, wherein: the roller device comprises a roller fixing frame, a roller rotating pin shaft and a roller.
5. A flexible sealing structure of a vacuum pump according to claim 1, wherein: the spring device comprises a supporting seat, a spring and a spring seat pin shaft.
6. A flexible sealing structure of a vacuum pump according to claim 1, wherein: the hinge device comprises a hinge pin shaft and a hinge shaft sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320156469.9U CN219472332U (en) | 2023-02-08 | 2023-02-08 | Flexible sealing structure of vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320156469.9U CN219472332U (en) | 2023-02-08 | 2023-02-08 | Flexible sealing structure of vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219472332U true CN219472332U (en) | 2023-08-04 |
Family
ID=87467573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320156469.9U Active CN219472332U (en) | 2023-02-08 | 2023-02-08 | Flexible sealing structure of vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219472332U (en) |
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2023
- 2023-02-08 CN CN202320156469.9U patent/CN219472332U/en active Active
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