CN104747448B - Reduce the crankshaft structure of rolling rotor compressor oil recycle ratio - Google Patents
Reduce the crankshaft structure of rolling rotor compressor oil recycle ratio Download PDFInfo
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- CN104747448B CN104747448B CN201310727724.1A CN201310727724A CN104747448B CN 104747448 B CN104747448 B CN 104747448B CN 201310727724 A CN201310727724 A CN 201310727724A CN 104747448 B CN104747448 B CN 104747448B
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- China
- Prior art keywords
- crankshaft
- shaft part
- long shaft
- crankshaft body
- exhaust port
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Abstract
The invention discloses a kind of crankshaft structure for reducing rolling rotor compressor oil recycle ratio, i.e. this crankshaft structure includes crankshaft body, the crankshaft body includes long shaft part and short axle section, the long shaft part of the crankshaft body is provided with central exhaust port vertically, and the long shaft part of the crankshaft body is radially communicated with the cross through hole of the central exhaust port.This crankshaft structure effectively reduces the oil recycle ratio under the high rotating speed of compressor, ensures cooling system/heating capacity under high rotating speed, so as to improve the system matches ability of compressor.
Description
Technical field
The present invention relates to a kind of crankshaft structure for reducing rolling rotor compressor oil recycle ratio.
Background technology
Rolling rotor compressor in system matches, frequently appear in only increase power under high rotating speed and refrigerating/heating
The situation that ability does not increase, analysis reason are that oil recycle ratio is higher under the high rotating speed of compressor, reduce system exchange capability of heat,
Cause system matches hydraulic performance decline.
Influence of the compressor oil circulation rate to system matches performance has turned into the key technology of compressor competition, effectively reduces
Oil recycle ratio can improve system matches performance under the high rotating speed of compressor, lift compressor competitiveness.
When compressor runs at high speed, the air velocity in motor lower portion cavity is higher than the critical speed of most of drops, gas
Flow " entrainment " most of liquid drop movement and form liquid film into motor passage and attached wall, passage portion is more and " stifled due to liquid film amount
Plug ", air-flow can only be flowed up by remaining passage.
When the water conservancy diameter of tones is less than the water conservancy diameter of rotor channel, the air velocity of tones, which is less than, to be turned
The air velocity of subchannel, the jet state that middle flow velocity is high, surrounding flow velocity is low is formed, is advantageous to oil droplet to surrounding internal face
Sedimentation, attachment, are easy to the separation of cold media gas and lubricating oil on motor top.
Limited by electric machine structure, the water conservancy diameter for directly increasing rotor channel is difficult to realize, and therefore, the present invention is using bent
Axis center vent structure.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of bent axle for reducing rolling rotor compressor oil recycle ratio
Structure, this crankshaft structure effectively reduce the oil recycle ratio under the high rotating speed of compressor, ensure cooling system/heating energy under high rotating speed
Power, so as to improve the system matches ability of compressor.
In order to solve the above technical problems, the crankshaft structure that the present invention reduces rolling rotor compressor oil recycle ratio includes song
Shaft body, the crankshaft body include long shaft part and short axle section, and the long shaft part of the crankshaft body is provided with center and is vented vertically
Hole, the long shaft part of the crankshaft body are radially communicated with the cross through hole of the central exhaust port.
The crankshaft structure that rolling rotor compressor oil recycle ratio is reduced due to the present invention employs above-mentioned technical proposal, i.e.,
This crankshaft structure includes crankshaft body, and the crankshaft body includes long shaft part and short axle section, the long shaft part edge of the crankshaft body
It is axially arranged with central exhaust port, the transverse direction that the long shaft part of the crankshaft body is radially communicated with the central exhaust port is led to
Hole.This crankshaft structure effectively reduces the oil recycle ratio under the high rotating speed of compressor, ensures the refrigerating/heating energy of system under high rotating speed
Power, so as to improve the system matches ability of compressor.
Brief description of the drawings
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
Fig. 1 is the crankshaft structure schematic diagram that the present invention reduces rolling rotor compressor oil recycle ratio.
Embodiment
As shown in figure 1, the crankshaft structure that the present invention reduces rolling rotor compressor oil recycle ratio includes crankshaft body 1,
The crankshaft body 1 includes long shaft part 11 and short axle section 12, and the long shaft part 11 of the crankshaft body 1 is provided with center and is vented vertically
Hole 13, the long shaft part 11 of the crankshaft body 1 are radially communicated with the cross through hole 14 of the central exhaust port 13.
This crankshaft structure opens up central exhaust port vertically in the long shaft part of crankshaft body, while radially opens up connection center
The cross through hole of steam vent, air-flow is set to be drained into from the long shaft part cross through hole of crankshaft body and long shaft part central exhaust port on motor
Portion, the jet state that middle flow velocity is high, surrounding flow velocity is low is formed, so as to reduce compressor oil circulation rate.
The distance between balance weight limit under the compressed machine upper cylinder cover axle journals of length L and rotor of long shaft part cross through hole
System, cross through hole should avoid the max bend position of crankshaft body, the cross sectional shape of cross through hole in the circumferential position of long shaft part
Selection with radius R should make the maximum stress of crankshaft body as small as possible, the central exhaust port diameter phi of the long shaft part of crankshaft body
It is as big as possible in the case where meeting crankshaft body intensity requirement.
Declined to a great extent using oil recycle ratio under the high rotating speed of the compressor of this crankshaft structure, cooling system amount/heating capacity is significantly
Rise, the system matches ability of compressor improves.
Claims (1)
1. a kind of crankshaft structure for reducing vertical rolling rotor compressor oil recycle ratio, including crankshaft body, the bent axle sheet
Body includes long shaft part and short axle section, and the long shaft part of the crankshaft body is provided with central exhaust port vertically, it is characterised in that：It is described
The long shaft part of crankshaft body is radially communicated with the cross through hole of the central exhaust port, so as in compressor operating, make
Air-flow drains into motor top from the cross through hole and the central exhaust port, and the middle flow velocity of formation is high, surrounding flow velocity is low penetrates
Stream mode；The selection of the cross sectional shape and radius of the cross through hole should make the maximum stress of the crankshaft body as small as possible,
The central exhaust port diameter of the long shaft part of the crankshaft body is as big as possible in the case where meeting crankshaft body intensity requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310727724.1A CN104747448B (en) | 2013-12-26 | 2013-12-26 | Reduce the crankshaft structure of rolling rotor compressor oil recycle ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310727724.1A CN104747448B (en) | 2013-12-26 | 2013-12-26 | Reduce the crankshaft structure of rolling rotor compressor oil recycle ratio |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104747448A CN104747448A (en) | 2015-07-01 |
| CN104747448B true CN104747448B (en) | 2018-03-06 |
Family
ID=53587594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310727724.1A Active CN104747448B (en) | 2013-12-26 | 2013-12-26 | Reduce the crankshaft structure of rolling rotor compressor oil recycle ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104747448B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196800B (en) * | 2020-09-29 | 2022-09-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor crankshaft, compressor pump body assembly and compressor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2913716Y (en) * | 2006-03-28 | 2007-06-20 | 西安庆安制冷设备股份有限公司 | Crankshaft of sealed rotary compressor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61187592A (en) * | 1985-02-14 | 1986-08-21 | Matsushita Electric Ind Co Ltd | Lubricating oil control device of enclosed rotary compressor |
| CN1007446B (en) * | 1985-06-27 | 1990-04-04 | 三菱电机株式会社 | Rotary compressor |
| US5322420A (en) * | 1992-12-07 | 1994-06-21 | Carrier Corporation | Horizontal rotary compressor |
| KR100286292B1 (en) * | 1993-12-15 | 2001-04-16 | 구자홍 | Lubrication oil feed apparatus for compressor |
| CN101063448A (en) * | 2006-04-24 | 2007-10-31 | 乐金电子(天津)电器有限公司 | Crankshaft structure of rotation-type compressor |
-
2013
- 2013-12-26 CN CN201310727724.1A patent/CN104747448B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2913716Y (en) * | 2006-03-28 | 2007-06-20 | 西安庆安制冷设备股份有限公司 | Crankshaft of sealed rotary compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104747448A (en) | 2015-07-01 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 201206 Jinqiao Road, Pudong New Area Jinqiao Export Processing Zone, Shanghai, 1051 Applicant after: Shanghai Haili Electrical Appliance Co. Ltd. Address before: 201206 Jinqiao Road, Pudong New Area Jinqiao Export Processing Zone, Shanghai, 1051 Applicant before: Rili Electric Appliance Co., Ltd., Shanghai |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |