CN104131975A - Single-stage rotary vane type vacuum pump - Google Patents
Single-stage rotary vane type vacuum pump Download PDFInfo
- Publication number
- CN104131975A CN104131975A CN201410345279.7A CN201410345279A CN104131975A CN 104131975 A CN104131975 A CN 104131975A CN 201410345279 A CN201410345279 A CN 201410345279A CN 104131975 A CN104131975 A CN 104131975A
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- pump
- rotor
- rotary vane
- pump cover
- groove
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
A single-stage rotary vane type vacuum pump. The pump round face between a pump suction port and an exhaust port is provided with a groove; the groove is provided inside with a spacer; the lower right edge of the spacer contacts the outer circular surface of a rotor, and the left end of the spacer is connected with a small shaft; the left end of the small shaft is connected with a rotating arm arranged on the outer side of a left pump cover; the rotor is an eccentric one, a rotary vane is arranged at the maximum eccentric radius, and one end of the rotary vane is in contact with the inner circular surface of the pump body; the rotating shaft of the rotor is in coaxial arrangement with the inner circle of the pump body, and the left end of the rotating shaft is respectively connected with a control handwheel arranged on the outer side of the left pump cover and a rotor balance block; and the control handwheel is provided with a lug boss, the lug boss controls a spiral arm to drive the pacer to return to the groove instantly at each rotation, without touching the rotary vane. The single-stage rotary vane type vacuum pump with rotor provided with only a piece of the rotary vane has significant characteristics of large effective volume for vacuum suction, good sealing performance of rotary vane, high degree of vacuum for the container, and high speed.
Description
Technical field
The present invention relates to a kind of single-stage rotary vane type vacuum pump, especially a kind of rotor is only established the single-stage rotary vane type vacuum pump of a slice blade.
Background technique
Current domestic vacuum pump manufacturing, with regard to single-stage rotary vane type vacuum pump, in its rotor set blade generally be two, more than three or three.If the patent No. is that 2005200725337 single-stage rotary vane type vacuum pumps and the patent No. are 2009201880817 single-stage rotary vane type vacuum pumps, in its rotor, set blade is two; And a kind of small-sized single-stage rotary vane type vacuum pump that the patent No. is 2009202316412, in its rotor, set blade is just three.The single-stage rotary vane type vacuum pump of this many blades of rotor structure, its major defect be with: 1, vacuumize air-breathing actual volume little, its maximum actual volume generally can not surpass 1/2nd of vacuum pump body inner chamber actual volume; 2, rotor and pump housing inner circle eccentric setting, it is inconsistent that rotor blade and pump housing inner headed face contact sealing load everywhere, and contact sealing effect differs, and exists and lets out gas leak phenomenon.Therefore it is low to container vacuum-pumping degree, generally between 150Pa to 200Pa.
Summary of the invention
The deficiency existing for existing single-stage rotary vane type vacuum pump, the invention provides the single-stage rotary vane type vacuum pump that a kind of rotor is only established a slice blade, and it is comprised of pump case, rotor and motor.Described pump case comprises the pump housing, left pump cover, right pump cover and safety enclosure.On the described pump housing, be provided with the intakeport and the relief opening that vacuumize, on relief opening, be provided with gas-liquid separator.It is characterized in that: on the pump housing inner headed face between described intakeport and relief opening, be provided with groove, be provided with partition in groove, limit, partition bottom right contacts with described rotor outer circle face, partition left end be placed in left pump cover and right pump cover on rotating little axle be connected.Little axle left end is connected with spiral arm one end of being located at left pump cover outside, and one end of spiral arm is connected with extension spring one end again, and the other end of extension spring is fixed on left pump cover outer side surface.The described spiral arm the other end is provided with roller; Described rotor is eccentric rotor, in its maximum eccentric radius, is provided with straight trough, is provided with blade in straight trough, and blade one end contacts with pump housing inner headed face, and the other end is by the spring supporting of being located in straight trough.Rotor shaft and pump housing inner circle coaxially arrange, by left pump cover and right pump cover, supported fixing, rotating shaft left end respectively be located at left pump cover outside, the control wheel contacting with spiral arm the other end roller is connected with balancing rotor piece.Described control wheel is provided with boss.Described safety enclosure is fixed on left pump cover outer side surface.
The invention has the beneficial effects as follows: the one, vacuumize air-breathing actual volume large, vacuumize air-breathing maximum actual volume and almost can reach the actual volume of whole vacuum pump body inner chamber; The 2nd, contact radius is consistent all the time everywhere with pump housing inner headed face for rotor blade, and contact sealing load size is constant, and contact sealing is reliable.Therefore its to increase empty intensity large, high to container vacuum-pumping degree, degree of vacuum generally can reach 200 to 250Pa, and vacuum pumping rate is also greatly improved.
Accompanying drawing explanation
Fig. 1 is A-A longitudinal section view of the present invention.
Fig. 2 is the partial cutaway left view of Fig. 1.
Fig. 3 is the B-B cross section view of Fig. 1.
In figure: 1. the pump housing, 2. rotor, 3. left pump cover, 4. right pump cover, 5. safety enclosure, 6. motor, 11. intakepories, 12. relief openings, 13. grooves, 14. little axles, 15. partitions, 16. spiral arms, 17. extension springs, 121. gas-liquid separators, 151. limits, bottom right, 161. rollers, 21. straight troughs, 22. blades, 23. springs, 24. rotating shafts, 25. control wheels, 26. balancing rotor pieces, 251. boss.
Embodiment
Embodiment as shown in Figure 1, Figure 2 and Figure 3,2 single-stage rotary vane type vacuum pumps of establishing a slice blade 22 of a kind of rotor, are comprised of pump case, rotor 2 and motor 6.Described pump case comprises the pump housing 1, left pump cover 3, right pump cover 4 and safety enclosure 5.On the described pump housing 1, be provided with the intakeport 11 and the relief opening 12 that vacuumize, on relief opening 12, be provided with gas-liquid separator 121.It is characterized in that: on the pump housing 1 inner headed face between described intakeport 11 and relief opening 12, be provided with groove 13, in groove 13, be provided with partition 15, partition 15 limits, bottom right 151 contact with described rotor 2 peripheries, partition 15 left ends be placed in left pump cover 3 and right pump cover 4 on rotating little axle 14 be connected, little axle 14 left ends are connected with spiral arm 16 one end of being located at left pump cover 3 outsides, one end of spiral arm 16 is connected with extension spring 17 one end again, and the other end of extension spring 17 is fixed on left pump cover 3 outer side surfaces.Described spiral arm 16 the other ends are provided with roller 161; Described rotor 2 is eccentric rotor, in rotor 2 maximum eccentric radius, is provided with straight trough 21, is provided with blade 22 in straight trough 21, and blade 22 one end contact with the pump housing 1 inner headed face, and blade 22 the other ends are supported mutually by the spring 23 of being located in straight trough 21.The rotating shaft 24 of rotor 2 coaxially arranges with the pump housing 1 inner circle, and rotating shaft 24 is supported fixing by left pump cover 3 and right pump cover 4, rotating shaft 24 left ends respectively be located at left pump cover 3 outsides, the control wheel 25 contacting with spiral arm 16 the other end rollers 161 is connected with balancing rotor piece 26.Described control wheel 25 is provided with boss 251.Described safety enclosure 5 is fixed on left pump cover 3 outer side surfaces.The described balancing rotor piece 26 that is loaded on control wheel 25 outsides, balance is carried out in the vibration that rotor 2 bias are caused.
Partition 15 in the present embodiment is equivalent to fixedly blade of a slice, and it is separated into the pump housing 1 inner chamber actual volume and vacuumizes air-breathing and two parts of compression exhaust together with blade 22; Under simultaneously the combination of the boss 251 of partition 15 in control wheel 25, spiral arm 16, little axle 14 is controlled and is driven, when blade 22 often turns through the pump housing 1 inner headed face groove 13, partition 15 can synchronously go back in groove 13 moment automatically, allows blade 22 by groove 13, not bump with blade 22 smoothly.When blade 22 is by after groove 13, partition 15 automatically resets rapidly again, the pump housing 1 inner chamber actual volume is separated into vacuumizes air-breathing and two parts of compression exhaust again.
Claims (1)
1. a single-stage rotary vane type vacuum pump, by pump case, rotor and motor form, described pump case comprises the pump housing, left pump cover, right pump cover and safety enclosure, on the described pump housing, be provided with the intakeport and the relief opening that vacuumize, on relief opening, be provided with gas-liquid separator, it is characterized in that: on the pump housing inner headed face between described intakeport and relief opening, be provided with groove, in groove, be provided with partition, limit, partition bottom right contacts with described rotor outer circle face, partition left end be placed in left pump cover and right pump cover on rotating little axle be connected, little axle left end is connected with spiral arm one end of being located at left pump cover outside, one end of spiral arm is connected with extension spring one end again, the other end of extension spring is fixed on left pump cover outer side surface, the described spiral arm the other end is provided with roller, described rotor is eccentric rotor, in its maximum eccentric radius, be provided with straight trough, in straight trough, be provided with blade, blade one end contacts with pump housing inner headed face, and the other end is by the spring supporting of being located in straight trough, rotor shaft and pump housing inner circle coaxially arrange, by left pump cover and right pump cover, supported fixing, rotating shaft left end respectively be located at left pump cover outside, the control wheel contacting with spiral arm the other end roller is connected with balancing rotor piece, described control wheel is provided with boss, and described safety enclosure is fixed on left pump cover outer side surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410345279.7A CN104131975A (en) | 2014-07-17 | 2014-07-17 | Single-stage rotary vane type vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410345279.7A CN104131975A (en) | 2014-07-17 | 2014-07-17 | Single-stage rotary vane type vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104131975A true CN104131975A (en) | 2014-11-05 |
Family
ID=51804781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410345279.7A Pending CN104131975A (en) | 2014-07-17 | 2014-07-17 | Single-stage rotary vane type vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104131975A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014989A (en) * | 2016-07-03 | 2016-10-12 | 南通广兴气动设备有限公司 | Spinning vacuum pump |
| CN106050652A (en) * | 2016-07-27 | 2016-10-26 | 王鼎兴 | Disc pump with elastic return rods |
| WO2017129028A1 (en) * | 2016-01-29 | 2017-08-03 | 南通广兴气动设备有限公司 | Spinning air pump |
| CN112112799A (en) * | 2020-09-08 | 2020-12-22 | 青岛大学 | Inner rotor swinging scraper device used as pump or motor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB273439A (en) * | 1926-05-07 | 1927-07-07 | William George Hay | Improvements in rotary pumps |
| GB274402A (en) * | 1926-05-07 | 1927-07-21 | William George Hay | Improvements in rotary pumps |
| GB628239A (en) * | 1947-09-26 | 1949-08-24 | Basil Dixon Bate | Improvements relating to rotary pumps |
| GB876857A (en) * | 1956-12-11 | 1961-09-06 | Basic Products Corp | Improvements in or relating to rotary vacuum pumps |
| US3302869A (en) * | 1963-04-26 | 1967-02-07 | Tchen Ni Kia | Multi-purpose rotary machine |
| CN1482362A (en) * | 2003-02-12 | 2004-03-17 | Rotary pump | |
| CN203939709U (en) * | 2014-07-17 | 2014-11-12 | 南通广兴气动设备有限公司 | A kind of single-stage rotary vane type vacuum pump |
-
2014
- 2014-07-17 CN CN201410345279.7A patent/CN104131975A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB273439A (en) * | 1926-05-07 | 1927-07-07 | William George Hay | Improvements in rotary pumps |
| GB274402A (en) * | 1926-05-07 | 1927-07-21 | William George Hay | Improvements in rotary pumps |
| GB628239A (en) * | 1947-09-26 | 1949-08-24 | Basil Dixon Bate | Improvements relating to rotary pumps |
| GB876857A (en) * | 1956-12-11 | 1961-09-06 | Basic Products Corp | Improvements in or relating to rotary vacuum pumps |
| US3302869A (en) * | 1963-04-26 | 1967-02-07 | Tchen Ni Kia | Multi-purpose rotary machine |
| CN1482362A (en) * | 2003-02-12 | 2004-03-17 | Rotary pump | |
| CN203939709U (en) * | 2014-07-17 | 2014-11-12 | 南通广兴气动设备有限公司 | A kind of single-stage rotary vane type vacuum pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017129028A1 (en) * | 2016-01-29 | 2017-08-03 | 南通广兴气动设备有限公司 | Spinning air pump |
| CN106014989A (en) * | 2016-07-03 | 2016-10-12 | 南通广兴气动设备有限公司 | Spinning vacuum pump |
| CN106050652A (en) * | 2016-07-27 | 2016-10-26 | 王鼎兴 | Disc pump with elastic return rods |
| CN112112799A (en) * | 2020-09-08 | 2020-12-22 | 青岛大学 | Inner rotor swinging scraper device used as pump or motor |
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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 |
Application publication date: 20141105 |