CN104948464A - Oil spraying and air supplementing structure of oil spraying screw rod vacuum pump - Google Patents
Oil spraying and air supplementing structure of oil spraying screw rod vacuum pump Download PDFInfo
- Publication number
- CN104948464A CN104948464A CN201510391451.7A CN201510391451A CN104948464A CN 104948464 A CN104948464 A CN 104948464A CN 201510391451 A CN201510391451 A CN 201510391451A CN 104948464 A CN104948464 A CN 104948464A
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- CN
- China
- Prior art keywords
- vacuum pump
- oil spraying
- oil
- threaded bolt
- throttle orifice
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- 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.)
- Granted
Links
- 238000005507 spraying Methods 0.000 title abstract 7
- 230000001502 supplementing effect Effects 0.000 title abstract 2
- 238000002347 injection Methods 0.000 claims description 21
- 239000007924 injection Substances 0.000 claims description 21
- 230000000694 effects Effects 0.000 description 6
- 239000000314 lubricant Substances 0.000 description 5
- 239000011148 porous material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
- Non-Positive Displacement Air Blowers (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention provides an oil spraying and air supplementing structure of an oil spraying screw rod vacuum pump, and can solve the problems of high unit noise and large vibration of a traditional oil spraying screw rod vacuum pump under high vacuum degree. A throttle hole is formed in a main engine casing of the oil spraying screw rod vacuum pump; and a main engine cavity of the oil spraying screw rod vacuum pump is communicated with external atmosphere through the throttle hole.
Description
Technical field
The present invention relates to exhaust end base of oil injection threaded bolt vacuum pump structure field, be specially the oil spout gas supplementary structure of exhaust end base of oil injection threaded bolt vacuum pump.
Background technique
Usually, except import and export flange, exhaust end base of oil injection threaded bolt vacuum pump main frame machine chamber 3 is completely isolated with outside atmosphere, see Fig. 1, in exhaust end base of oil injection threaded bolt vacuum pump runs, when intake vacuum is higher, the noise of vacuum pump main frame, vibrations there will be remarkable lifting, and its reason is mainly that the too high meeting of intake vacuum causes rotor to tremble in machine chamber aggravation.Therefore, if main frame inside can be reduced occur that the time of condition of high vacuum degree is even avoided occurring condition of high vacuum degree situation, unit noise and vibrations can effectively be reduced.
Summary of the invention
For the problems referred to above, the invention provides the oil spout gas supplementary structure of exhaust end base of oil injection threaded bolt vacuum pump, it can solve existing exhaust end base of oil injection threaded bolt vacuum pump unit noise under condition of high vacuum degree and ring, shakes large problem.
The oil spout gas supplementary structure of exhaust end base of oil injection threaded bolt vacuum pump, is characterized in that: on exhaust end base of oil injection threaded bolt vacuum pump host machine casing, have throttle orifice, and described exhaust end base of oil injection threaded bolt vacuum pump main frame machine chamber is connected by described throttle orifice with outside atmosphere.
Further, the aperture of described throttle orifice is φ 2mm ~ φ 8mm.
Further, be communicated with by through hole between described throttle orifice with unit oil circuit.
Beneficial effect of the present invention is: it by offering the throttle orifice be connected with main frame machine chamber on exhaust end base of oil injection threaded bolt vacuum pump host machine casing, main frame machine chamber is connected with outside atmosphere, this throttle orifice to play in balancing machine chamber and the effect of air pressure between outside atmosphere, when the vacuum up of main frame internal gas and main frame internal gas pressure are lower than outside atmosphere, under the effect of pressure difference, outside atmosphere can enter inside, main frame machine chamber automatically by throttle orifice, thus avoids internal body to occur condition of high vacuum degree; And when machine chamber internal pressure kept reduces, the pressure difference of body inside and outside can improve again the flow velocity that gas enters body, therefore, throttle orifice can ensure that internal body there will not be condition of high vacuum degree, turn avoid too much gas and enters body and increase the problem of unit power consumption; And by the pore size control of throttle orifice at φ 2mm ~ φ 8mm, restriction air can be played further and enter the tolerance of body and the effect of flow velocity by throttle orifice; And unit oil circuit is communicated with by through hole with between throttle orifice, pressure difference also can make lubricant oil enter throttle orifice, thus plays the effect of lubrication noise reduction, reduces the noise vibration of the too high generation of gas flow rate, thus the noise that reduction main frame body spreads out of along throttle orifice.
Accompanying drawing explanation
Fig. 1 existing exhaust end base of oil injection threaded bolt vacuum pump main frame partial schematic diagram;
Fig. 2 is the oil spout gas supplementary structure schematic diagram of exhaust end base of oil injection threaded bolt vacuum pump of the present invention.
Embodiment
See Fig. 2, the oil spout gas supplementary structure of exhaust end base of oil injection threaded bolt vacuum pump of the present invention, it has throttle orifice 2 on exhaust end base of oil injection threaded bolt vacuum pump host machine casing 1, and exhaust end base of oil injection threaded bolt vacuum pump main frame machine chamber 3 is connected by throttle orifice 2 with outside atmosphere; The aperture of throttle orifice 2 is φ 2mm ~ φ 8mm.When the vacuum up of main frame internal gas and main frame internal gas pressure are lower than outside atmosphere, under the effect of pressure difference, outside atmosphere can enter inside, main frame machine chamber automatically by throttle orifice 2, thus avoids internal body to occur condition of high vacuum degree; And when machine chamber internal pressure kept reduces, the pressure difference of body inside and outside can improve again the flow velocity that gas enters body, therefore throttle orifice can ensure that internal body there will not be condition of high vacuum degree, turn avoid too much gas and enters body and increase the problem of unit power consumption.
Be communicated with by through hole 6 between throttle orifice 2 with set lubricant oil road 5, pressure difference also can make lubricant oil enter throttle orifice, lubricant oil can lubricate gas and throttling pore inwall, reduce friction, thus the noise that the too high generation noise vibration of minimizing gas flow rate, reduction main frame spread out of along throttling pore, namely play the effect of lubrication noise reduction.
In Fig. 2,4 illustrate for outside atmosphere flows to, and 7 is that lubricant oil flows to signal.
Claims (3)
1. the oil spout gas supplementary structure of exhaust end base of oil injection threaded bolt vacuum pump, is characterized in that: on exhaust end base of oil injection threaded bolt vacuum pump host machine casing, have throttle orifice, and described exhaust end base of oil injection threaded bolt vacuum pump main frame machine chamber is connected by described throttle orifice with outside atmosphere.
2. the oil spout gas supplementary structure of the exhaust end base of oil injection threaded bolt vacuum pump according to claim, is characterized in that: the aperture of described throttle orifice is φ 2mm ~ φ 8mm.
3. the oil spout gas supplementary structure of the exhaust end base of oil injection threaded bolt vacuum pump according to claim, is characterized in that: described throttle orifice is communicated with by through hole with unit oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510391451.7A CN104948464B (en) | 2015-07-07 | 2015-07-07 | The oil spout gas supplementary structure of exhaust end base of oil injection threaded bolt vavuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510391451.7A CN104948464B (en) | 2015-07-07 | 2015-07-07 | The oil spout gas supplementary structure of exhaust end base of oil injection threaded bolt vavuum pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104948464A true CN104948464A (en) | 2015-09-30 |
| CN104948464B CN104948464B (en) | 2017-12-08 |
Family
ID=54163409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510391451.7A Active CN104948464B (en) | 2015-07-07 | 2015-07-07 | The oil spout gas supplementary structure of exhaust end base of oil injection threaded bolt vavuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104948464B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906008A (en) * | 2017-11-16 | 2018-04-13 | 宁波市鄞州堃信工业产品设计有限公司 | A kind of screw air compressor fueling injection equipment |
| WO2018171551A1 (en) * | 2017-03-20 | 2018-09-27 | 珠海格力电器股份有限公司 | Slide valve for compressor and screw compressor having same |
| CN108825503A (en) * | 2018-08-31 | 2018-11-16 | 重庆开山压缩机有限公司 | The making-up air device of exhaust end base of oil injection threaded bolt formula vacuum pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6165087A (en) * | 1984-09-05 | 1986-04-03 | Hitachi Ltd | Oil free screw type vacuum pump |
| JPH0343692A (en) * | 1989-07-07 | 1991-02-25 | Shinko Seiki Co Ltd | Oil supply device in oil rotation vacuum pump |
| CN201092959Y (en) * | 2007-09-28 | 2008-07-30 | 珠海格力电器股份有限公司 | Rotary compressor for increasing enthalpy by utilizing muffling hole air injection |
| CN203297103U (en) * | 2013-06-14 | 2013-11-20 | 南通市红星空压机配件制造有限公司 | Movable air intake control valve of screw air compressor |
| CN204003451U (en) * | 2014-07-16 | 2014-12-10 | 南通市红星空压机配件制造有限公司 | A kind of screw-rod air compressor gas valve |
| CN205047430U (en) * | 2015-07-07 | 2016-02-24 | 无锡压缩机股份有限公司 | Oil spout screw vacuum pump's oil spout tonifying qi structure |
-
2015
- 2015-07-07 CN CN201510391451.7A patent/CN104948464B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6165087A (en) * | 1984-09-05 | 1986-04-03 | Hitachi Ltd | Oil free screw type vacuum pump |
| JPH0343692A (en) * | 1989-07-07 | 1991-02-25 | Shinko Seiki Co Ltd | Oil supply device in oil rotation vacuum pump |
| CN201092959Y (en) * | 2007-09-28 | 2008-07-30 | 珠海格力电器股份有限公司 | Rotary compressor for increasing enthalpy by utilizing muffling hole air injection |
| CN203297103U (en) * | 2013-06-14 | 2013-11-20 | 南通市红星空压机配件制造有限公司 | Movable air intake control valve of screw air compressor |
| CN204003451U (en) * | 2014-07-16 | 2014-12-10 | 南通市红星空压机配件制造有限公司 | A kind of screw-rod air compressor gas valve |
| CN205047430U (en) * | 2015-07-07 | 2016-02-24 | 无锡压缩机股份有限公司 | Oil spout screw vacuum pump's oil spout tonifying qi structure |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018171551A1 (en) * | 2017-03-20 | 2018-09-27 | 珠海格力电器股份有限公司 | Slide valve for compressor and screw compressor having same |
| US11313369B2 (en) | 2017-03-20 | 2022-04-26 | Gree Electric Appliances, Inc. Of Zhuhai | Slide valve for compressor and screw compressor with slide valve |
| CN107906008A (en) * | 2017-11-16 | 2018-04-13 | 宁波市鄞州堃信工业产品设计有限公司 | A kind of screw air compressor fueling injection equipment |
| CN107906008B (en) * | 2017-11-16 | 2019-04-05 | 宁波市鄞州堃信工业产品设计有限公司 | A kind of screw air compressor fueling injection equipment |
| CN108825503A (en) * | 2018-08-31 | 2018-11-16 | 重庆开山压缩机有限公司 | The making-up air device of exhaust end base of oil injection threaded bolt formula vacuum pump |
| CN108825503B (en) * | 2018-08-31 | 2024-01-23 | 重庆开山流体机械有限公司 | Air supplementing device of oil injection screw type vacuum pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104948464B (en) | 2017-12-08 |
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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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171019 Address after: 214145 Jiangsu city of Wuxi province new Wu Quhong Hill Street Tin Co Road No. 199 Applicant after: WUXI XIYA COMPRESSOR CO.,LTD. Address before: 214145 Jiangsu Province, Wuxi City District Hongshan Photoelectric Industrial Park (co Tin Road No. 199) Applicant before: WUXI COMPRESSOR Co.,Ltd. |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: The fuel injection and gas filling structure of the fuel injection screw vacuum pump Granted publication date: 20171208 Pledgee: Wuxi Xinwu sub branch of Agricultural Bank of China Ltd. Pledgor: WUXI XIYA COMPRESSOR CO.,LTD. Registration number: Y2024980010540 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |