CN1862020A - Paw type dry vacuum pump - Google Patents
Paw type dry vacuum pump Download PDFInfo
- Publication number
- CN1862020A CN1862020A CN 200510069027 CN200510069027A CN1862020A CN 1862020 A CN1862020 A CN 1862020A CN 200510069027 CN200510069027 CN 200510069027 CN 200510069027 A CN200510069027 A CN 200510069027A CN 1862020 A CN1862020 A CN 1862020A
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- rotor
- vacuum pump
- pawl
- stage
- driving
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Abstract
A claw dry vacuum pump includes a pump body, first stage to fourth stage claw rotor pairs and a baffle in the pump, driving and driven shafts and driving and driven gears for fixing and driving the rotor pairs, a coupling connected between the driving shaft and the motor, a top cap, a top bearing cap, an air-vent and an air inlet. The phase angles of the rotor pairs located each stage cavity are zero.
Description
Technical field
The present invention relates to a kind of dry vacuum pump.
Background technique
The structure of existing claw shape dry type vacuum pump can be 97226078.1 twin-stage claw rotor oil-free vacuum pump Patent document data referring to the patent No..This twin-stage claw rotor oil-free vacuum pump is to adopt paired claw rotor structure, by its transmission that is meshing with each other, to through rotor synchronous opposite direction be compressed from the gas that air-inlet cavity enters, be discharged to the next stage suction port from relief opening, next stage repeats the process of upper level, thereby reaches the purpose that vacuumizes.Above-mentioned vacuum pump has been widely used in industries such as chemical industry, space flight because the interior unlubricated wet goods advantage of pump chamber can be extracted condensable gas such as water vapor, alcohol efficiently out.Described twin-stage claw rotor oil-free vacuum pump exists following shortcoming: 1, when pump intake pressure was higher, actual pumping speed was less relatively; 2, gas channel is longer, and power consumpiton is bigger; 3, running is after several years, and gas channel needs to clean.
Summary of the invention
The purpose of this invention is to provide a kind of claw shape dry type vacuum pump, can solve and shorten gas move distance in pump, improve the technical problems such as pumping speed of inlet pressure section.
The structure of claw shape dry type vacuum pump of the present invention comprises: the rotor of first to fourth utmost point is to reaching dividing plate, fix and drive right master and slave moving axis of rotor and driving and driven gear, connecting coupling, top cover, top bearing cap and row, suction port between driving shaft and the motor in the pump housing of first to fourth utmost point, the pump housing; Described rotor is to being twin-stage pawl type, and first order rotor is to being positive pawl, and second level rotor is to being anti-pawl, and third level rotor is to being positive and negative, and fourth stage rotor is to being anti-pawl.
Aforesaid a kind of claw shape dry type vacuum pump, the described rotor that is positioned at cavitys at different levels is a zero degree to the phase angle.
Claw shape dry type vacuum pump of the present invention is compared with traditional technology, has advantage and good effect is as follows: can shorten gas move distance in pump effectively, and, reduced the gas flow resistance significantly, improve the pumping speed of inlet pressure section effectively, reduced the power consumpiton of motor.The gas channel and the technology that have reduced each cavity dividing plate are stifled, have reduced the external leakage of gas.
Description of drawings
Fig. 1 is the plan view of the embodiment of the invention.
Fig. 2 is the plan view of the embodiment of the invention.
Fig. 3 is the left view of the embodiment of the invention.
Fig. 4 to Fig. 7 is the first order pump housing of the present invention and the right fundamental diagram of rotor.
Fig. 8 to Figure 11 is the second level of the present invention pump housing and the right fundamental diagram of rotor.
Figure 12 to Figure 15 is the third level pump housing of the present invention and the right fundamental diagram of rotor.
Figure 16 to Figure 19 is the fourth stage pump housing of the present invention and the right fundamental diagram of rotor.
Embodiment
Specific embodiments of the invention are referring to Fig. 1 to Fig. 3, among Fig. 1, this device by the first order pump housing 1, primary rotor to 2, first order dividing plate 3, the second level pump housing 4, second level rotor to 5, third level dividing plate 6, the third level pump housing 7, third level rotor to 8, the fourth stage pump housing 9, fourth stage rotor to 10, driving shaft 11, driving gear 12, driven gear 13, top cover 19, apical axis water cover 20, relief opening 101 and suction port 104 form jointly.Described driving shaft 11 is connected by the output shaft of coupling 15 with motor 16, and driving wheel 12 on the driving shaft 11 and follower engagement, follower drive driven shaft 17 motions.Described motor 11 is realized being fixedly connected by the link press span 14 and the pump housing.
Described rotor at different levels is a twin-stage pawl formula to 2,5,8,10, and is individually fixed on driving shaft 11 and the driven shaft 17.
Fig. 2 is a plan view of the present invention, and 105 is the air outlet among the figure, and Fig. 3 is a left view of the present invention.
Working principle of the present invention is as follows:
1, as shown in Figure 4, gas 103 enters by suction port 104 in cavitys at different levels, rotor to 102 synchronous opposite direction effect under, pressurized gas 103 is discharged gas by relief opening 101, directly enters in the next stage pump housing.Be discharged to the fourth stage pump housing successively, discharge by relief opening.
2, the moving line of gas as shown in Figure 1, the gas motion route is, behind the cavity 201 that suction port 101 arrives in the first order pump housing 1, to 2 compressions, be discharged to cavity 401 positions in the first order dividing plate by rotor, arrive the cavity 501 of the second level pump housing then, arrive the cavity 701 of the third level pump housing by the cavity 601 of dividing plate, then, be followed successively by cavity 801 to 901, discharge by relief opening 105 to the fourth stage pump housing.
3, the right motion of rotor is to drive coupling 15 by motor 16, drives main shaft 11, by gear mesh driving gear 12 and driven gear 13, drives driven shaft 17, drive simultaneously rotor to 1, rotor to 2, rotor to 3, rotor discharges gas successively to 4.
Rotor at different levels of the present invention is to working principle, can join the principle schematic under 4 to Figure 19 the level Four rotor different rotary state.
Claims (2)
1, a kind of claw shape dry type vacuum pump is characterized in that its structure comprises: the rotor of first to fourth utmost point is to reaching dividing plate, fix and drive right master and slave moving axis of rotor and driving and driven gear, connecting coupling, top cover, top bearing cap and row, suction port between driving shaft and the motor in the pump housing of first to fourth utmost point, the pump housing; Described rotor is to being twin-stage pawl type, and first order rotor is to being positive pawl, and second level rotor is to being anti-pawl, and third level rotor is to being positive and negative, and the 4th utmost point rotor is to being anti-pawl.
2, a kind of claw shape dry type vacuum pump as claimed in claim 1 is characterized in that: the described rotor that is positioned at cavitys at different levels is a zero degree to the phase angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510069027 CN1862020A (en) | 2005-05-10 | 2005-05-10 | Paw type dry vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510069027 CN1862020A (en) | 2005-05-10 | 2005-05-10 | Paw type dry vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1862020A true CN1862020A (en) | 2006-11-15 |
Family
ID=37389528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510069027 Pending CN1862020A (en) | 2005-05-10 | 2005-05-10 | Paw type dry vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1862020A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985939A (en) * | 2010-11-30 | 2011-03-16 | 东北大学 | Dry vacuum pump with shaft end dynamic seal structure |
| CN101985937A (en) * | 2010-11-30 | 2011-03-16 | 东北大学 | Triaxial claw vacuum pump |
| CN101985936A (en) * | 2010-11-30 | 2011-03-16 | 东北大学 | Asymmetric claw type vacuum pump |
| CN102064630A (en) * | 2010-04-02 | 2011-05-18 | 陶维君 | Generator convenient for extruding extended arm of force |
| CN102278311A (en) * | 2010-06-12 | 2011-12-14 | 中国科学院沈阳科学仪器研制中心有限公司 | Structure of rotor and shaft of multilevel dry type vacuum pump and application thereof |
| CN109113998A (en) * | 2018-09-18 | 2019-01-01 | 世通海泰泵业（天津）股份有限公司 | It vacuumizes and uses driving device |
| CN110966265A (en) * | 2018-09-28 | 2020-04-07 | 党祎贤 | Vacuum pump for collection and injection |
| CN116517826A (en) * | 2023-04-25 | 2023-08-01 | 北京通嘉宏瑞科技有限公司 | Rotor assembly and pump body structure |
-
2005
- 2005-05-10 CN CN 200510069027 patent/CN1862020A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064630A (en) * | 2010-04-02 | 2011-05-18 | 陶维君 | Generator convenient for extruding extended arm of force |
| CN102278311A (en) * | 2010-06-12 | 2011-12-14 | 中国科学院沈阳科学仪器研制中心有限公司 | Structure of rotor and shaft of multilevel dry type vacuum pump and application thereof |
| CN101985939A (en) * | 2010-11-30 | 2011-03-16 | 东北大学 | Dry vacuum pump with shaft end dynamic seal structure |
| CN101985937A (en) * | 2010-11-30 | 2011-03-16 | 东北大学 | Triaxial claw vacuum pump |
| CN101985936A (en) * | 2010-11-30 | 2011-03-16 | 东北大学 | Asymmetric claw type vacuum pump |
| CN101985939B (en) * | 2010-11-30 | 2012-06-27 | 东北大学 | Dry vacuum pump with shaft end dynamic seal structure |
| CN101985936B (en) * | 2010-11-30 | 2012-06-27 | 东北大学 | Asymmetric claw type vacuum pump |
| CN101985937B (en) * | 2010-11-30 | 2012-10-17 | 东北大学 | Triaxial claw vacuum pump |
| CN109113998A (en) * | 2018-09-18 | 2019-01-01 | 世通海泰泵业（天津）股份有限公司 | It vacuumizes and uses driving device |
| CN110966265A (en) * | 2018-09-28 | 2020-04-07 | 党祎贤 | Vacuum pump for collection and injection |
| CN116517826A (en) * | 2023-04-25 | 2023-08-01 | 北京通嘉宏瑞科技有限公司 | Rotor assembly and pump body structure |
| CN116517826B (en) * | 2023-04-25 | 2024-03-22 | 北京通嘉宏瑞科技有限公司 | Rotor assembly and pump body structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |