CN201090443Y - Single-stage rotary blade type mechanical vacuum pump - Google Patents
Single-stage rotary blade type mechanical vacuum pump Download PDFInfo
- Publication number
- CN201090443Y CN201090443Y CNU2007201028743U CN200720102874U CN201090443Y CN 201090443 Y CN201090443 Y CN 201090443Y CN U2007201028743 U CNU2007201028743 U CN U2007201028743U CN 200720102874 U CN200720102874 U CN 200720102874U CN 201090443 Y CN201090443 Y CN 201090443Y
- Authority
- CN
- China
- Prior art keywords
- cylindrical cavity
- cylindrical
- pump
- vacuum pump
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Rotary Pumps (AREA)
Abstract
The utility model relates to a mechanical vacuum pump, in particular to a single-stage sliding vane rotary mechanical vacuum pump. A cylindrical hollow cavity is arranged in the pump body, an air inlet pipe is arranged at one side in the cylindrical cavity, and a cylindrical rotor contacted with the wall of the cylindrical cavity is eccentrically arranged in the cylindrical cavity. Two grooves are arranged on the cylindrical rotor, two rotary sliding vanes are respectively arranged in the grooves and a spring is arranged between the two rotary sliding vanes. An air outlet is arranged on the cylindrical cavity and along the lengthways axis on the top of the pump; and an air outlet valve is arranged on the air outlet. The influence of the noxious space on the peak pumping speed and the ultimate vacuum is eliminated by the utility model which has high production efficiency.
Description
Technical field:
The utility model relates to a kind of oil-sealed rotary pump, particularly relates to a kind of single-stage rotary-vane pump.
Background technique:
At present, the internal structure of rotary-vane pump all is designed to: a cylindrical cavity is arranged in the pump, one side of cylindrical cavity is installed into feed channel, in the position of departing from pump longitudinal axis several angle drain tap is installed, an eccentric cylindrical rotor of installing is housed in the cylindrical cavity, and the top of cylindrical rotor remains with cavity wall and contacts, and has two grooves on the rotor, two blades are installed in the groove, a spring is arranged between blade.When rotor rotates, slide along the inwall of cavity all the time in the top of two blades, and whole cavity is placed in the fuel tank.When work, rotor banding blade and is constantly rotated, and just has gas constantly to get rid of the effect of bleeding of finishing.The rotating speed of rotor is generally about 450 rev/mins.If obviously the rotating speed of rotor is fast more, then pumping speed is big more, but guarantees very difficulty of sealing under high rotating speed.Because the outlet valve reveal is installed on the cylindrical cavity, between pushing up, it and pump can form a clearance space, and this clearance space directly influences the maximum pumping speed and the ultimate vacuum of pump.Manufacturing efficiency is low.
Summary of the invention:
Goal of the invention of the present utility model is intended to solve maximum pumping speed and the ultimate vacuum that clearance space in the prior art directly influences pump, cause the low problem of manufacturing efficiency, a kind of longitudinal axis position that the relief opening position is arranged on pump is provided, eliminate clearance space, the single-stage rotary-vane pump of enhancing productivity that can be bigger.
Realize the foregoing invention purpose by the following technical solutions: a kind of single-stage rotary-vane pump, be provided with a cylindrical cavity in its pump housing, one side of cylindrical cavity is equipped with admission line, be installed in the cylindrical cavity with the contacted cylindrical rotor off-centre of cylindrical cavity inwall, have two grooves on this cylindrical rotor, be separately installed with blade in each groove, be provided with spring between two blades, it is characterized in that: be provided with relief opening in longitudinal axis position, pump top, cylindrical cavity upper edge, drain tap is installed on the relief opening.
Adopt technique scheme, compare with existing single-stage rotary-vane pump, the utility model is installed the relief opening position and is changed the longitudinal axis position that the relief opening position is arranged on pump into by original side, eliminated the influence of clearance space, can greatly improve the maximum pumping speed and the ultimate vacuum of pump maximum pumping speed and ultimate vacuum; Can be bigger enhance productivity.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure, admission line 1, cylindrical rotor 2, blade 3, arrow 4, cylindrical cavity 5, relief opening 6, drain tap 7.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Referring to accompanying drawing 1, a kind of sigle-stage AC rotary-vane pump has a cylindrical cavity 5 as stator in its pump housing, a side of cylindrical cavity 5 is installed into feed channel 1, along the longitudinal axis position that pump pushes up relief opening 6 is set at cylindrical cavity, drain tap 7 is installed on the relief opening 6.An eccentric cylindrical rotor 2 of installing is housed in the cylindrical cavity 5, and the top of cylindrical rotor 2 contacts with the cylindrical cavity inwall all the time.Have two grooves on the cylindrical rotor 2,3 of blade 3, two blades are installed respectively in each groove a spring.When cylindrical rotor 2 arrow 4 directions when rotation in Fig. 1, the top of two blades 3 under the control of spring all the time the inwall along cylindrical cavity 5 slide owing to there is not clearance space to produce, so the manufacturing efficiency height.
Claims (1)
1. single-stage rotary-vane pump, be provided with a cylindrical cavity in its pump housing, one side of cylindrical cavity is equipped with admission line, be installed in the cylindrical cavity with the contacted cylindrical rotor off-centre of cylindrical cavity inwall, have two grooves on this cylindrical rotor, be separately installed with blade in each groove, be provided with spring between two blades, it is characterized in that: be provided with relief opening in longitudinal axis position, pump top, cylindrical cavity upper edge, drain tap is installed on the relief opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201028743U CN201090443Y (en) | 2007-10-26 | 2007-10-26 | Single-stage rotary blade type mechanical vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201028743U CN201090443Y (en) | 2007-10-26 | 2007-10-26 | Single-stage rotary blade type mechanical vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090443Y true CN201090443Y (en) | 2008-07-23 |
Family
ID=39862204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201028743U Expired - Fee Related CN201090443Y (en) | 2007-10-26 | 2007-10-26 | Single-stage rotary blade type mechanical vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090443Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678560A (en) * | 2011-03-18 | 2012-09-19 | Ulvac机工株式会社 | Oil rotary vacuum pump |
| CN103233895A (en) * | 2013-05-11 | 2013-08-07 | 燕京啤酒(玉林)有限公司 | Rotary vane type vacuum pump discharge filtering mechanism |
| CN103867439A (en) * | 2014-01-01 | 2014-06-18 | 周汉忠 | Sliding-vane rotary vacuum pump |
| CN109827446A (en) * | 2018-12-24 | 2019-05-31 | 陕西能源麟北发电有限公司 | A kind of method and vacuum pump system improving thermal power plant's generating set circulation thermal efficiency |
-
2007
- 2007-10-26 CN CNU2007201028743U patent/CN201090443Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678560A (en) * | 2011-03-18 | 2012-09-19 | Ulvac机工株式会社 | Oil rotary vacuum pump |
| CN102678560B (en) * | 2011-03-18 | 2015-03-04 | Ulvac机工株式会社 | Oil rotary vacuum pump |
| CN103233895A (en) * | 2013-05-11 | 2013-08-07 | 燕京啤酒(玉林)有限公司 | Rotary vane type vacuum pump discharge filtering mechanism |
| CN103867439A (en) * | 2014-01-01 | 2014-06-18 | 周汉忠 | Sliding-vane rotary vacuum pump |
| CN109827446A (en) * | 2018-12-24 | 2019-05-31 | 陕西能源麟北发电有限公司 | A kind of method and vacuum pump system improving thermal power plant's generating set circulation thermal efficiency |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201090443Y (en) | Single-stage rotary blade type mechanical vacuum pump | |
| RU2008142373A (en) | VALVE PUMP WITH VOLUME CONTROL | |
| CN202117928U (en) | Capacitance variable type rotary compressor | |
| CN2816434Y (en) | Vortex-adding chamber structure for water pump | |
| CN201090445Y (en) | Two-stage rotary blade type mechanical vacuum pump | |
| CN201241825Y (en) | High pressure and high flow vane type oil pump with porous oil inlet and outlet | |
| CN201568302U (en) | Synchronous-rotation compressing machine with rotary air inlet, air outlet and exhaust valve | |
| CN204164031U (en) | A kind of impeller of centrifugal air compressor | |
| CN204140136U (en) | Vaned deceleration pneumatic motor | |
| CN202391484U (en) | Adjustable steam-supplementing mechanism for steam turbine | |
| CN201865709U (en) | Blade type pneumatic motor | |
| CN200978812Y (en) | Pneumatic sand-discharging filth-discharging submersible pump | |
| CN201428595Y (en) | Double variable quantity blade pump | |
| CN207315648U (en) | One kind is with gear-driven compressor | |
| CN201003414Y (en) | Pneumatic motor | |
| CN203532251U (en) | Slide sheet compressor with engine body bypass air transmission amount | |
| CN203867921U (en) | Improved vertical water ring vacuum pump | |
| CN201428593Y (en) | Variable quantity blade pump | |
| CN203867625U (en) | Slip sheet expansion machine with fluid smoothness | |
| CN204371761U (en) | A kind of micro-resistance impeller for chemical centrifugal pump | |
| CN203978836U (en) | A kind of vacuum pump for high-pressure common rail direct injection diesel engine | |
| CN202348665U (en) | Modified oil seal type two-stage vacuum pump | |
| CN212691460U (en) | Oil outlet channel structure of variable displacement oil pump | |
| CN215370236U (en) | A kind of compressor | |
| CN202833139U (en) | Constant flow vane pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |