CN210371160U - Single-rotary-vane fluid vacuum pump - Google Patents
Single-rotary-vane fluid vacuum pump Download PDFInfo
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- CN210371160U CN210371160U CN201921390249.2U CN201921390249U CN210371160U CN 210371160 U CN210371160 U CN 210371160U CN 201921390249 U CN201921390249 U CN 201921390249U CN 210371160 U CN210371160 U CN 210371160U
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Abstract
The utility model relates to a single-rotary-vane fluid vacuum pump; comprises a pump body, a rotor and a rotor plate; a pump cavity is arranged in the pump body; the rotor is eccentrically arranged in the pump cavity; the shaft part of the rotor is provided with a chute; the rotary piece is connected with the sliding groove in a sliding manner, so that the rotor drives the rotary piece to rotate in the pump cavity through the sliding groove; the length of the inner diameter of any one of the pump cavities passing through the center of the rotor is the same as that of the rotor, so that when the rotor rotates in the pump cavity, the pump cavity is divided into 2 spaces with constantly changing volumes; the pump body is provided with an inlet and an outlet, and the pump cavity is communicated with the outside through the inlet and the outlet; when the rotary vane rotates to be vertical to the offset direction of the rotor, the inlet and the outlet are both positioned in the space on the offset side of the rotor. Because no spring is arranged, the rotor groove is internally provided with the rotary vane which is integrally enhanced to do work pressure, the clean space in the pump body is increased, the work efficiency is increased, the structure is simple, and the cost is reduced.
Description
Technical Field
The utility model relates to a vacuum pump technical field, in particular to single-rotor type fluid vacuum pump.
Background
The rotary vane (sliding vane) vacuum pump in the prior art closest to the technology of the application mainly comprises a pump body, a rotor, a rotary vane, an end cover, a spring and the like. A rotor is eccentrically arranged in the cavity of the rotary vane vacuum pump, the excircle of the rotor is tangent to the inner surface of the pump cavity (a small gap exists between the excircle of the rotor and the inner surface of the pump cavity), and two rotary vanes with springs are arranged in the rotor groove. When the rotary vane pump rotates, the top end of the rotary vane keeps contact with the inner wall of the pump cavity by virtue of centrifugal force and the tension of the spring, and the rotor rotates to drive the rotary vane to slide along the inner wall of the rotary vane vacuum pump cavity. Because the rotary vane is connected by a spring, the maximum length of the rotary vane is 1/2 of the diameter of the rotor, the effective working length of the rotary vane is not more than 1/2 of the rotary vane, and the pump has the characteristics of obviously low efficiency, insufficient pressure, high noise, high failure rate and the like as a vacuum (booster) pump due to the self condition.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the single-rotor fluid vacuum pump is simple in pump body structure and high in pressurizing strength.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a single-rotor fluid vacuum pump comprises a pump body, a rotor and a rotor plate;
a pump cavity is arranged in the pump body;
the rotor is eccentrically arranged in the pump cavity;
the shaft part of the rotor is provided with a chute;
the rotor drives the rotor to rotate in the pump cavity through the chute;
the length of the inner diameter of any one of the pump cavities passing through the center of the rotor is the same as that of the rotor, so that when the rotor rotates in the pump cavity, the pump cavity is divided into 2 spaces with constantly changing volumes; the pump body is provided with an inlet and an outlet, and the pump cavity is communicated with the outside through the inlet and the outlet; when the rotor is perpendicular to the connecting line from the center of the rotor to the tangent point of the rotor and the cavity, the inlet and the outlet are both positioned on the offset side of the rotor, and the inlet and the outlet are tangentially isolated from the cavity due to the rotor.
And the outer diameter of the rotor is attached to the cavity of the pump cavity.
The inlet and the outlet are respectively positioned on two sides of a fitting point of the outer diameter of the rotor and the cavity of the pump cavity.
Wherein, the inlet is a liquid inlet, and the outlet is a liquid outlet.
Wherein, the inlet is an air inlet, and the outlet is an air outlet.
Wherein, the bottom of the pump body is provided with a supporting seat.
The beneficial effects of the utility model reside in that: the utility model provides a single-rotor fluid vacuum pump which is used for pressurizing liquid and gas; vacuumizing gas and liquid; the gas and liquid pressure driving device is free of spring, a rotor groove is internally provided with a rotary vane, the rotary vane is integrally used for enhancing working pressure, the clean space in a pump body is enlarged, the working efficiency is increased, the structure is simple, and the cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a single-vane fluid vacuum pump according to an embodiment of the present invention in a first state;
FIG. 2 is a schematic diagram of a single-vane fluid vacuum pump according to an embodiment of the present invention in a second state;
fig. 3 is a schematic structural diagram of a third state of a single-vane fluid vacuum pump according to an embodiment of the present invention;
description of reference numerals:
1. a pump body; 11. a pump chamber; 12. an inlet; 13. and (7) an outlet. 2. A rotor; 3. rotating the sheet; 4. and (4) supporting the base.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The utility model discloses the most crucial design lies in: the rotor groove is internally provided with the rotary piece which is integrally enhanced in working pressure, the clean space in the pump body is increased, the working efficiency is increased, the structure is simple, and the cost is reduced.
Referring to fig. 1 to 3, the present invention relates to a single-vane fluid vacuum pump, which includes a pump body 1, a rotor 2 and a vane rotor 3;
a pump cavity 11 is arranged in the pump body 1;
the rotor 2 is eccentrically arranged in the pump cavity 11;
the shaft part of the rotor 2 is provided with a chute;
the rotor 3 is connected with the chute in a sliding way, so that the rotor 2 drives the rotor 3 to rotate in the pump cavity 11 through the chute;
the length of any inner diameter of the pump cavity 11 passing through the center of the rotor 2 is the same as that of the rotor 3, so that when the rotor 3 rotates in the pump cavity 11, the pump cavity 11 is divided into 2 spaces with constantly changing volumes;
the pump body 1 is provided with an inlet 12 and an outlet 13, and the pump chamber 11 communicates with the outside through the inlet 12 and the outlet 13.
In the structure of the single-rotor fluid vacuum pump, the rotor 2 is eccentrically arranged in the cavity of the vacuum pump of the rotor 3, when the rotor 2 rotates, the rotor 3 which is connected with the rotor 2 in a sliding way rotates in the pump cavity 11 along with the rotor 2, the pump cavity 11 is divided into 2 spaces with constantly changing volumes, and two ends of the rotor 3 are contacted with the inner wall of the pump cavity 11; fluid is pressed into the pump cavity 11 from the inlet 12 through negative pressure, when pressurization work is performed, the rotor 2 is driven under the action of external force, the rotor 2 rotates to drive the rotary vane 3 to push the fluid to perform work, the rotary vane 3 rotates to one side, the fluid is pressed out of the outlet 13 through pressurization, namely, when a space separated by the rotary vane 3 forms negative pressure suction, the other space completes pressurization work, and when the rotary vane 3 rotates, the rotary vane slides back and forth along the sliding groove of the rotor 2, so that the continuous pressurization and suction purposes are achieved in cycles.
The utility model relates to a single-rotor fluid vacuum pump which is used for pressurizing liquid and gas; vacuumizing gas and liquid; the gas and liquid pressure driving device is free of spring arrangement, a rotor 2 is provided with a rotary vane 3 in a groove, the rotary vane 3 integrally enhances working pressure, the clean space in the pump body 1 is increased, the working efficiency is increased, the structure is simple, and the cost is reduced.
Further, in the above-mentioned single-vane fluid vacuum pump structure, the outer diameter of the rotor 2 is fitted to the cavity of the pump cavity 11.
Further, in the above structure of the single-vane fluid vacuum pump, the inlet 12 and the outlet 13 are symmetrically located on two sides of a joint point between the outer diameter of the rotor and the cavity of the pump cavity 2.
Further, in the above-mentioned single-vane fluid vacuum pump structure, the inlet 12 is a liquid inlet, and the outlet 13 is a liquid outlet.
Further, in the above-mentioned single-vane fluid vacuum pump structure, the inlet 12 is an air inlet, and the outlet 13 is an air outlet.
Further, in the above single-vane fluid vacuum pump structure, the bottom of the pump body 1 is provided with a support seat 4.
Referring to fig. 1 to 3, if the rotary plate 3 rotates counterclockwise, the upper space is significantly smaller than the lower space in the first state, and if the rotary plate 3 continues to rotate, the upper space increases and the lower space decreases, the fluid is pressed out from the outlet 13 by the rotary plate 3 acting, and meanwhile, a negative pressure is generated at the inlet 12 to press the fluid into the pump cavity 11; in the second state, the left space and the right space have the same volume, and if the rotary vane 3 continues to rotate, the right space is continuously reduced, and the left space is continuously increased; in the third state, the volume of the upper right space is smaller than the volume of the lower left space, and the inlet 12 is in the negative pressure suction process, while the outlet 13 is in the process of doing work to discharge the fluid.
Example 1
A single-rotor fluid vacuum pump comprises a pump body 1, an end cover, a rotor 2 and a rotor plate 3; a pump cavity 11 is arranged in the pump body 1; the rotor 2 is eccentrically arranged in the pump cavity 11; the shaft part of the rotor 2 is provided with a chute; the rotor plate 3 is arranged in the sliding groove to slide, so that the rotor 2 drives the rotor plate 3 to rotate in the pump cavity 11; the pump body 1 is internally provided with a cavity, the inner diameter (cross section along a rotating shaft) of the cavity is non-circular, the length of any inner diameter passing through the center of the rotor 2 in the pump cavity 11 is the same as that of the rotor 3, the rotor 3 is a single complete rotor 3 and is arranged in a chute of the rotor 2, the length (cross section along the rotating shaft) of the rotor 3 is the same as that of the pump cavity 11 passing through the center of the rotor 2, and two ends of the rotor 3 are abutted against the inner wall of the cavity; the pump chamber 11 is divided into 2 spaces with constantly changing volumes; when the rotor 2 rotates and one end of the rotor 3 reaches the tangent point of the rotor 2 and the cavity, the other end of the rotor 3 is farthest away from the center of the rotor 2; when the rotor 2 rotates, the two ends of the rotor 3 alternate with each other. The pump body 1 is provided with an inlet 12 and an outlet 13, and the pump cavity 11 is communicated with the outside through the inlet 12 and the outlet 13; when the rotor 3 is perpendicular to the connecting line from the center of the rotor 2 to the tangent point of the rotor 2 and the cavity, the inlet 12 and the outlet 13 are both positioned on the offset side of the rotor 2, and the inlet 12 and the outlet 13 are isolated from the cavity by the tangency of the rotor 2. The outer diameter of the rotor 2 is smaller than the inner diameter of a pump cavity 11 passing through the center of the rotor 2; the rotor 2 is longitudinally provided with a through chute through the center of the rotor 2, and the chute penetrates through the rotor 2; the rotor 2 is eccentrically arranged in the pump cavity 11; the outer diameter of the rotor 2 is tangential to the inner surface of the pump chamber 11. The end covers are two end sealing covers of the pump body 1 (along the longitudinal direction of the rotor 2). The inlet 12 and the outlet 13 are respectively positioned at two sides of the joint point of the outer diameter of the rotor 2 and the cavity of the pump cavity 11. The inlet 12 is a liquid inlet, the outlet 13 is a liquid outlet, and the bottom of the pump body 1 is provided with a supporting seat 4.
Example 2
A single-vane fluid vacuum pump as set forth in embodiment 1, wherein the inlet is a gas inlet and the outlet is a gas outlet.
To sum up, the single-rotor fluid vacuum pump provided by the utility model is used for pressurizing liquid and gas; vacuumizing gas and liquid; the gas and liquid pressure driving device is free of spring, a rotor groove is internally provided with a rotary vane, the rotary vane is integrally used for enhancing working pressure, the clean space in a pump body is enlarged, the working efficiency is increased, the structure is simple, and the cost is reduced.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (6)
1. The single-rotor fluid vacuum pump is characterized by comprising a pump body, a rotor and a rotor plate;
a pump cavity is arranged in the pump body;
the rotor is eccentrically arranged in the pump cavity;
the shaft part of the rotor is provided with a chute;
the rotary piece is connected with the sliding groove in a sliding manner, so that the rotor drives the rotary piece to rotate in the pump cavity through the sliding groove;
the length of the inner diameter of any one of the pump cavities passing through the center of the rotor is the same as that of the rotor, so that when the rotor rotates in the pump cavity, the pump cavity is divided into 2 spaces with constantly changing volumes;
the pump body is provided with an inlet and an outlet, and the pump cavity is communicated with the outside through the inlet and the outlet.
2. A single-vane fluid vacuum pump according to claim 1, wherein the outer diameter of the rotor conforms to the cavity of the pump chamber.
3. A single vane pump according to claim 2 wherein the inlet and outlet ports are symmetrically located on either side of the point of abutment of the rotor external diameter with the chamber of the pump chamber.
4. A single vane fluid vacuum pump as claimed in claim 1 wherein the inlet is a liquid inlet and the outlet is a liquid outlet.
5. A single-vane fluid vacuum pump as claimed in claim 1, wherein the inlet is a gas inlet and the outlet is a gas outlet.
6. A single-vane fluid vacuum pump according to claim 1, wherein the bottom of the pump body is provided with a support seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921390249.2U CN210371160U (en) | 2019-08-26 | 2019-08-26 | Single-rotary-vane fluid vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921390249.2U CN210371160U (en) | 2019-08-26 | 2019-08-26 | Single-rotary-vane fluid vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210371160U true CN210371160U (en) | 2020-04-21 |
Family
ID=70252608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921390249.2U Active CN210371160U (en) | 2019-08-26 | 2019-08-26 | Single-rotary-vane fluid vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210371160U (en) |
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2019
- 2019-08-26 CN CN201921390249.2U patent/CN210371160U/en active Active
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