CN102410219A - Vertical dry type screw rod vacuum pump - Google Patents
Vertical dry type screw rod vacuum pump Download PDFInfo
- Publication number
- CN102410219A CN102410219A CN2011103782064A CN201110378206A CN102410219A CN 102410219 A CN102410219 A CN 102410219A CN 2011103782064 A CN2011103782064 A CN 2011103782064A CN 201110378206 A CN201110378206 A CN 201110378206A CN 102410219 A CN102410219 A CN 102410219A
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- pump
- screw rod
- base
- gear
- vacuum pump
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Abstract
The invention relates to the field of vacuum pumps, in particular to a vertical dry type screw rod vacuum pump, which comprises a motor, a base, gears, screw rods, two pump shafts, a pump body and a pump cover, wherein the motor is arranged on the base; a bottom plate is arranged on the upper part of the base; and the pump body and the pump cover are arranged on the bottom plate. The vacuum pump is characterized in that: a driving gear is arranged at the lower end of a motor shaft in the base and is engaged with an intermediate gear in the base; the two pump shafts of which the two ends are arranged in the base are vertically arranged on the bottom plate through bearings and are provided with a synchronous gear respectively; the intermediate gear is engaged with the synchronous gear at the lower end of one pump shaft; in the pump body on the bottom plate, the two pump shafts are provided with a vertical support respectively; piston rings are arranged on the pump shafts at the upper ends of the vertical supports; the bearings are arranged on the upper parts of the piston rings; one vertical support is provided with a right screw rod, and the other vertical support is provided with a left screw rod; the right screw rod is engaged with the left screw rod; and drain plugs are arranged on the tops of the screw rods. The vacuum pump has a simple structure and long service life and is easy to manufacture and convenient to mount and maintain.
Description
Technical field
The present invention relates to a kind of field of vacuum, specifically a kind of vertical dry screw vacuum pump.
Background technique
Screw vacuum pump has been proved to be the dry vacuum pump of function admirable; It has, and ultimate pressure is low, vacuum system is simple and direct; Active chamber does not have any medium, can obtain clean vacuum; Applied widely, environment-friendly and green or the like advantage is applied to all trades and professions more and more, replaces traditional water ring vaccum pump and oil-sealed vacuum pump.But traditional horizontal screw vacuum pump; Because two screw rod horizontal positioned of bleeding; Still use bearings at suction end,, unavoidably exist the micro oil steam leakage because bearing need lubricate and the existence of motive sealing; Can pollute vacuum environment, be not suitable for using in the demanding occasion of vacuum environment turbidity test.Because the screw rod horizontal positioned exists and gets rid of shortcomings such as not smooth, the using scope and the advantage performance of screw pump have been limited when suction condensable gas or liquid.
Summary of the invention
The objective of the invention is provides a kind of reasonable in design in order to solve the deficiency of above-mentioned technology, compact structure, quick detachable, maintenance convenience, the vertical dry screw vacuum pump of long service life.
The technological scheme that the present invention adopted is: a kind of vertical dry screw vacuum pump, include motor, base, gear, screw rod, pump shaft, the pump housing and pump cover, and motor is installed on the base; Base plate is arranged at base top, and base plate upper pump casing and pump cover is characterized in that the lower end of motor shaft is provided with actuation gear in base; With the intermediate gear engagement in the base, two pump shafts are vertically mounted on the base plate through bearing, are provided with synchromesh gear on two pump shafts of lower end in base; The synchromesh gear engagement of an intermediate gear and a pump shaft lower end in the pump housing on base plate, is respectively equipped with upright support on two pump shafts; On the pump shaft of upright support upper end, be provided with piston ring, bearing is provided with right screw rod on the top of piston ring in a upright support; Another upright support is provided with left screw rod, and right screw rod and left screw engages are provided with plug at the screw rod top.
Right screw rod of the present invention and left screw rod are uniform pitchs, also can be variable pitchs.
The two bearings of described screw rod of supports right respectively and left screw rod is positioned at the bottom of screw rod.
Two screw rods of the present invention is vertically mounted on the base plate, changes the placement location of bearing, removes the support of suction end screw rod fully, thoroughly eliminates the lubricant oil of suction end and the phenomenon of oil vapor seepage, becomes the vertical screw vacuum pump.It has following characteristics:
1, after two screw rods were vertically installed, the liquid of gas, condensable gas and gas-entrained was discharged from top to bottom, and except that the screw rod rotation produces the Driving force, liquid leans on the gravity of self to have the trend of moving to relief opening, and liquid is discharged faster, complete.
2, after two screw rods were vertically installed, after the screw rod rotation produced vacuum, screw rod bore the thrust that barometric pressure makes progress, and thrust offsets in the screw rod deadweight, has greatly alleviated the axial force that screw rod bore, and has prolonged the working life of bearing.
3, after two screw rods are vertically installed, compact structure, the complete machine floor space is little.
4, after two screw rods were vertically installed, dismounting was simple, and maintenance conveniently.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is an A-A view of the present invention.
Mark among the figure: 1, motor, 2, gear, 3, intermediate gear, 4, jack shaft, 5, bearing, 6, base; 7, gear, 8, bearing, 9, axle, 10, upright support, 11, left screw rod, 12, base plate; 13, bearing, 14, piston ring, 15, the pump housing, 16, plug, 17, pump cover, 18, right screw rod.
Embodiment
By Fig. 1, Fig. 2, a kind of vertical dry screw vacuum pump includes motor 1, base 6, gear 2,3,7, screw rod 11,18, pump shaft 9, the pump housing 15 and pump cover 17; Motor 1 is installed on the base 6, and base plate 12 is arranged at base 6 tops, base plate upper pump casing 15 and pump cover 17; The lower end of motor shaft is provided with actuation gear 2 in base, and with intermediate gear 3 engagements of passing through in the base on the jack shaft 4 of bearing fixing, two pump shafts 9 are vertically mounted on the base plate 12 through bearing 8; Be provided with synchromesh gear 7 on two pump shafts 9 of lower end in base, synchromesh gear 7 engagements of an intermediate gear 3 and a pump shaft lower end are in the pump housing 15 on base plate 12; Be respectively equipped with upright support 10 on two pump shafts 9, on the pump shaft of upright support upper end, be provided with piston ring 14, bearing 13 is on the top of piston ring; In a upright support, be provided with right screw rod 11; Another upright support is provided with left screw rod 18, and right screw rod and left screw engages are provided with plug 16 at screw rod 11,18 tops.
Right screw rod of the present invention and left screw rod are uniform pitchs, also can be variable pitchs.
The two bearings of described screw rod of supports right respectively and left screw rod is positioned at the bottom of screw rod, and screw rod is a cantilever structure.
Top in upright support 10 is equipped with several piston ring; Scurry into the inside of bearing 13 and bearing 8 with the gas that prevents to discharge; The infringement bearing influences the life-span, and plug 16 is installed in the top of screw rod 11,18, prevents that the gas of discharging from returning suction end under the effect of pressure reduction; Intakeport A is positioned on the pump cover 17, and relief opening B is positioned on the base 6.The present invention has simple in structure, is prone to make installation and easy to maintenance, long service life.
Claims (3)
1. a vertical dry screw vacuum pump includes motor, base, gear, screw rod, pump shaft, the pump housing and pump cover, and motor is installed on the base; Base plate is arranged at base top, and base plate upper pump casing and pump cover is characterized in that the lower end of motor shaft is provided with actuation gear in base; With the intermediate gear engagement in the base, two pump shafts are vertically mounted on the base plate through bearing, are provided with synchromesh gear on two pump shafts of lower end in base; The synchromesh gear engagement of an intermediate gear and a pump shaft lower end in the pump housing on base plate, is respectively equipped with upright support on two pump shafts; On the pump shaft of upright support upper end, be provided with piston ring, bearing is provided with right screw rod on the top of piston ring in a upright support; Another upright support is provided with left screw rod, and right screw rod and left screw engages are provided with plug at the screw rod top.
2. according to right 1 described vertical dry screw vacuum pump, it is characterized in that: described right screw rod and left screw rod are uniform pitchs, also can be variable pitchs.
3. according to right 1 described vertical dry screw vacuum pump, it is characterized in that: the two bearings of described screw rod of supports right respectively and left screw rod is positioned at the bottom of screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103782064A CN102410219A (en) | 2011-11-24 | 2011-11-24 | Vertical dry type screw rod vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103782064A CN102410219A (en) | 2011-11-24 | 2011-11-24 | Vertical dry type screw rod vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102410219A true CN102410219A (en) | 2012-04-11 |
Family
ID=45912486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103782064A Pending CN102410219A (en) | 2011-11-24 | 2011-11-24 | Vertical dry type screw rod vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102410219A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948463A (en) * | 2015-07-29 | 2015-09-30 | 宋东方 | Vertical screw vacuum pump |
| CN105626522A (en) * | 2016-03-23 | 2016-06-01 | 河北维普真空设备有限公司 | Special vertical lower cantilever hollow screw rod vacuum pump for pharmaceutical chemical engineering |
| CN110374869A (en) * | 2019-06-21 | 2019-10-25 | 杭州萨莫雷斯科技有限公司 | A kind of vertical screw vacuum pump and its working method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5924855A (en) * | 1995-06-21 | 1999-07-20 | Sihi Industry Consult Gmbh | Screw compressor with cooling |
| CN1415055A (en) * | 1999-12-27 | 2003-04-30 | 莱博尔德真空技术有限责任公司 | Screw vaccum pump with coolant circuit |
| US20030161749A1 (en) * | 2002-02-28 | 2003-08-28 | Teijin Seiki Co., Ltd. | Vacuum exhausting apparatus |
| CN1768206A (en) * | 2003-02-24 | 2006-05-03 | 里奇勒·托马斯绍普夫海姆有限公司 | Rotary piston pump |
| JP2009092039A (en) * | 2007-10-11 | 2009-04-30 | Nabtesco Corp | Two-stage screw type vacuum pump |
| CN201344126Y (en) * | 2008-11-21 | 2009-11-11 | 山东伯仲真空设备有限公司 | Oil-less dry type screw vacuum pump |
| CN201739178U (en) * | 2010-05-11 | 2011-02-09 | 淄博特士德真空设备科技有限公司 | Novel vacuum pump |
| CN202326237U (en) * | 2011-11-24 | 2012-07-11 | 威海智德真空科技有限公司 | Vertical dry type screw vacuum pump |
-
2011
- 2011-11-24 CN CN2011103782064A patent/CN102410219A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5924855A (en) * | 1995-06-21 | 1999-07-20 | Sihi Industry Consult Gmbh | Screw compressor with cooling |
| CN1415055A (en) * | 1999-12-27 | 2003-04-30 | 莱博尔德真空技术有限责任公司 | Screw vaccum pump with coolant circuit |
| US20030161749A1 (en) * | 2002-02-28 | 2003-08-28 | Teijin Seiki Co., Ltd. | Vacuum exhausting apparatus |
| CN1768206A (en) * | 2003-02-24 | 2006-05-03 | 里奇勒·托马斯绍普夫海姆有限公司 | Rotary piston pump |
| JP2009092039A (en) * | 2007-10-11 | 2009-04-30 | Nabtesco Corp | Two-stage screw type vacuum pump |
| CN201344126Y (en) * | 2008-11-21 | 2009-11-11 | 山东伯仲真空设备有限公司 | Oil-less dry type screw vacuum pump |
| CN201739178U (en) * | 2010-05-11 | 2011-02-09 | 淄博特士德真空设备科技有限公司 | Novel vacuum pump |
| CN202326237U (en) * | 2011-11-24 | 2012-07-11 | 威海智德真空科技有限公司 | Vertical dry type screw vacuum pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948463A (en) * | 2015-07-29 | 2015-09-30 | 宋东方 | Vertical screw vacuum pump |
| CN105626522A (en) * | 2016-03-23 | 2016-06-01 | 河北维普真空设备有限公司 | Special vertical lower cantilever hollow screw rod vacuum pump for pharmaceutical chemical engineering |
| CN110374869A (en) * | 2019-06-21 | 2019-10-25 | 杭州萨莫雷斯科技有限公司 | A kind of vertical screw vacuum pump and its working method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120411 |