CN101383534B - Motor for vacuum pump - Google Patents
Motor for vacuum pump Download PDFInfo
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- CN101383534B CN101383534B CN2007100127587A CN200710012758A CN101383534B CN 101383534 B CN101383534 B CN 101383534B CN 2007100127587 A CN2007100127587 A CN 2007100127587A CN 200710012758 A CN200710012758 A CN 200710012758A CN 101383534 B CN101383534 B CN 101383534B
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- pump
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- shroud sleeve
- electric motor
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Abstract
The invention relates to a vacuum pump motor which belongs to the field of a motor. The vacuum pump motor is provided with a pump body, a motor stator and a rotor; a shielding sleeve structure is used by the motor; a shielding sleeve is arranged between the motor stator and the motor rotor; and dynamic seal between a driving shaft and the pump body is converted into static seal. The invention thoroughly solves the problems of shaft seal leakage and starting impact; as the dynamic seal between the driving shaft and the pump body is converted into the static seal of the shielding sleeve, no lubrication fluid is needed and the problems of shaft seal leakage and medium pollution are also thoroughly solved; meanwhile, the problems of high frequency vibration and starting impact noise which are caused by rigid coupling are solved; the whole motor can be dissembled at random; the stator cavity of the motor can be opened at random; and the invention has the advantages of convenient maintenance, easy installation, short maintenance duration, time and labor conservation, and cost reduction. In the exhaust process, the invention can prevent the vacuum environment from being polluted, and is applied to the industries of semiconductor, petrochemical, metallurgy, food, medicine, electronics, packaging, printing, and the like.
Description
Technical field
The present invention relates to a kind of vacuum electric motor for pump, belong to machine field.
Background technology
Homemade vacuum pump is through vicennial fast development, and its main performance index (as pumping speed, limiting pressure, energy consumption, zero delivery compression ratio, pressure reduction) all reaches or approaching external advanced level.But pump operation stability, dependability and external advanced pump gap are bigger.
When motor and pump shaft passed through the positive coupling transferring power, starting-impact was bigger, even the very high noise of screaming unusually occurred, and the pump more than the pumping speed 600l/s is especially obvious.For the sealing of driving shaft, because the wearing and tearing of dither and material cause are very fast, leakage of oil, gas leak phenomenon are serious, and useful life is short, and the axle envelope needs frequent the replacing, influences ordinary production.
Summary of the invention
The invention provides a kind of vacuum electric motor for pump, thoroughly solving the axle envelope reveals and the starting-impact problem, changing the pump shaft movable sealing is the housing static seal, need not lubricating fluid, thoroughly solved the axle envelope and revealed and the medium pollution problem, dither and starting-impact noise problem that positive coupling is caused are also solved.
Technical scheme of the present invention is:
A kind of vacuum electric motor for pump has the pump housing, motor stator, rotor, and motor adopts the shroud sleeve structure, is provided with shroud sleeve between rotor and motor stator, is sealed into static seal between the driving shaft and the pump housing.
Described vacuum electric motor for pump, rotor by rotor baffle plate and screw on driving shaft.
Described vacuum electric motor for pump adopts water-cooling structure, and motor stator is tied with water cooling tube.
Described vacuum electric motor for pump, quick-release coupling is adopted at the water cooling tube two ends.
Described vacuum electric motor for pump is installed between rotor on the driving shaft and the shroud sleeve and has gap c, 0＜c≤0.2mm.
Described vacuum electric motor for pump adopts the seam location between the shroud sleeve and the pump housing.
Described vacuum electric motor for pump adopts the sealing of fluororubber O circle between the shroud sleeve and the pump housing.
Described vacuum electric motor for pump, shroud sleeve are disposable die casting structure.
Described vacuum electric motor for pump, the monitoring temperature transducer that additional real-time detected temperatures changes on the motor.
The present invention has following advantage:
1, the present invention thoroughly solves leakage of axle envelope and starting-impact problem, changing the pump shaft movable sealing is the housing static seal, need not lubricating fluid, thoroughly solved the axle envelope and revealed and a medium pollution problem, dither and starting-impact noise problem that positive coupling is caused are also solved, motor integral body can arbitrarily be dismantled, arbitrarily open the bore of stator of motor, the duration weak point is installed easily, keeped in repair to convenient for maintaining, time saving and energy saving, reduce cost.
2, it is not contaminated that the present invention can keep vacuum environment in pumping process, is applicable to industries such as semiconductor, petrochemical industry, metallurgy, food, medicine, electronics, packing, printing.
Description of drawings
Fig. 1 is an electric machine structure schematic diagram of the present invention.
Among the figure, 1, the pump housing; 2, fluororubber O circle; 3, water cooling tube; 4, motor stator; 5, rotor; 6, rotor baffle plate; 7, soket head cap screw (M8 * 30mm); 8, shroud sleeve; 9, driving shaft; 10, axle sleeve.
Embodiment
As shown in Figure 1, vacuum electric motor for pump structure of the present invention is as follows: it comprises motor stator 4 and is positioned at the stator can tube 8 of motor stator 4, rotor 5 is fixed on the driving shaft 9 by rotor baffle plate 6 and soket head cap screw 7, separate by shroud sleeve 8 between rotor 5 and the motor stator 4, can adopt the seam location between the shroud sleeve 8 and the pump housing 1, seal with fluororubber O circle 2 between the pump housing 1 and the shroud sleeve 8, rotor 5 is positioned at stator can 8 inside and does not contact, the gap that has 0.02mm, rotor need detect through dynamic balancing, and amount of unbalance is less than 1gmm.Shroud sleeve 8 forms for disposable die casting, guarantees sealing effectiveness, takes out from motor easily, makes easy to maintenance.Be the problem that effectively solves that the motor feels hot, motor stator 4 outsides are tied with water cooling tube 3, realize the cooling to motor effectively, in the course of normal operation, have certain water-cooled always.Motor integral body can arbitrarily be dismantled, and arbitrarily opens the bore of stator of motor, and convenient for maintaining is installed easily, keeped in repair the duration weak point, and is time saving and energy saving, reduces cost.Can add the monitoring temperature transducer of real-time its variations in temperature of detection on the motor of the present invention.
When adopting motor power of the present invention to connect, rotor drives driving shaft 9 and rotates, vacuum is pumped in shroud sleeve 8 inside, this moment, rotor 5 was at internal vacuum chamber, and motor stator 4 is static seal between the pump housing 1 and the motor in the vacuum chamber outside, there are not traditional movable sealing and leakage problem in the total, do not have the movable sealing problem between the driving shaft 9 and the pump housing 1, there is not the impacting start problem that is rigidly connected in no shaft coupling knot in the structure.
Claims (6)
1. vacuum electric motor for pump, has the pump housing, motor stator, rotor, it is characterized in that: motor adopts the shroud sleeve structure, between rotor and motor stator, be provided with shroud sleeve, separate by shroud sleeve between rotor and the motor stator, be installed between rotor on the driving shaft and the shroud sleeve and have gap c, 0＜c≤0.2mm, be sealed into the shroud sleeve static seal between the driving shaft and the pump housing, adopt the seam location between the shroud sleeve and the pump housing, adopt the sealing of fluororubber O circle between the shroud sleeve and the pump housing, vacuum is pumped in shroud sleeve inside, no shaft coupling knot in the structure.
2. by the described vacuum electric motor for pump of claim 1, it is characterized in that: rotor by rotor baffle plate and screw on driving shaft.
3. by the described vacuum electric motor for pump of claim 1, its feature is at hand: adopt water-cooling structure, motor stator is tied with water cooling tube.
4. by the described vacuum electric motor for pump of claim 3, it is characterized in that: quick-release coupling is adopted at the water cooling tube two ends.
5. by the described vacuum electric motor for pump of claim 1, it is characterized in that: shroud sleeve is disposable die casting structure.
6. by the described vacuum electric motor for pump of claim 1, it is characterized in that: the monitoring temperature transducer that additional real-time detected temperatures changes on the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100127587A CN101383534B (en) | 2007-09-07 | 2007-09-07 | Motor for vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100127587A CN101383534B (en) | 2007-09-07 | 2007-09-07 | Motor for vacuum pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101383534A CN101383534A (en) | 2009-03-11 |
| CN101383534B true CN101383534B (en) | 2011-06-29 |
Family
ID=40463215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100127587A Active CN101383534B (en) | 2007-09-07 | 2007-09-07 | Motor for vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101383534B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931263A (en) * | 2019-03-08 | 2019-06-25 | 西安航天动力研究所 | A kind of dry type shielding vacuum pump |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280965B (en) * | 2010-06-12 | 2013-07-24 | 中国科学院沈阳科学仪器股份有限公司 | Shield motor for vacuum pump |
| CN103107647B (en) * | 2011-11-11 | 2015-06-03 | 中国科学院沈阳科学仪器股份有限公司 | Motor for dry-type vacuum pump |
| CN113809882B (en) * | 2021-08-16 | 2023-11-14 | 浙江维朋制冷设备有限公司 | Vacuum pump power assembly |
-
2007
- 2007-09-07 CN CN2007100127587A patent/CN101383534B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931263A (en) * | 2019-03-08 | 2019-06-25 | 西安航天动力研究所 | A kind of dry type shielding vacuum pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101383534A (en) | 2009-03-11 |
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| C14 | Grant of patent or utility model | ||
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Address after: Hunnan Shenyang 110168 Liaoning province Xinyuan street, No. 1 Patentee after: Shenyang Scientific Apparatus Co., Ltd. of Chinese Academy of Sciences Address before: Hunnan Shenyang 110168 Liaoning province Xinyuan street, No. 1 Patentee before: Shenyang Scientific Instrument Research & Mfg. Center Co., Ltd., C.A.S |
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| CP01 | Change in the name or title of a patent holder |