CN103899634A - Special crankshaft with double oil grooves for refrigerator compressor - Google Patents
Special crankshaft with double oil grooves for refrigerator compressor Download PDFInfo
- Publication number
- CN103899634A CN103899634A CN201410126633.7A CN201410126633A CN103899634A CN 103899634 A CN103899634 A CN 103899634A CN 201410126633 A CN201410126633 A CN 201410126633A CN 103899634 A CN103899634 A CN 103899634A
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- main shaft
- main
- oil
- auxiliary
- sidewall
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- 239000000945 filler Substances 0.000 claims description 35
- 238000011176 pooling Methods 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 239000000314 lubricant Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention relates to a special crankshaft with double oil grooves for a refrigerator compressor. The special crankshaft comprises a main shaft, a crank and a crank shaft, wherein the crank shaft is installed on the main shaft by virtue of the crank, a bottom main oil inlet and a bottom auxiliary oil inlet are respectively formed in the bottom surface of the main shaft, a side wall main oil outlet and a side wall auxiliary oil outlet are respectively formed in the middle part of the main shaft side wall, the bottom main oil inlet is communicated with the side wall main oil outlet through a main oil inlet passage formed in the main shaft, and the bottom auxiliary oil inlet is communicated with the side wall auxiliary oil outlet through an auxiliary oil inlet passage formed in the main shaft; a main shaft upper end oil inlet is formed in the upper end of the main shaft and communicated with a crank shaft oil outlet, and a main spiral rising oil groove formed by the side wall main oil outlet by virtue of the main shaft side wall is converged with an auxiliary spiral rising oil groove formed by the side wall auxiliary oil outlet by virtue of the main shaft side wall to form a mixed oil groove and then communicated with the main shaft upper end oil inlet. The special crankshaft provided by the invention has the advantages that the structural design is scientific and reasonable, friction is effectively reduced, oil pumping quantity under low revolution speed of an inverter compressor is improved, the cost is lower, and the service life of the refrigerator compressor is prolonged.
Description
Technical field
The invention belongs to bent axle field, special pair of oil groove bent axle of especially a kind of freezer compressor.
Background technique
Frequency-changeable compressor is high with its efficiency, the feature such as power saving and smooth running is applied in freezer compressor, but its cost is higher with respect to normal reciprocating piston compressor, in improving frequency-changeable compressor performance, reduce frequency-changeable compressor cost, the upper oil mass that improves frequency-changeable compressor becomes the main target of current research.For existing frequency-changeable compressor, oil if realized under low speed, need to add a upper oil draining bolt and viscosity pump, but cost compare costliness.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of freezer compressor special pair of oil groove bent axle, this crankshaft structure design science is reasonable, effectively reduce friction, improved the upper oil mass under the frequency-changeable compressor slow-speed of revolution, cost is lower, has improved the working life of freezer compressor.
The present invention solves its technical problem and is achieved through the following technical solutions:
Special pair of oil groove bent axle of a kind of freezer compressor, comprise main shaft, crank and crankshaft, crankshaft is arranged on main shaft by crank, the auxiliary filler opening of the main filler opening in bottom and bottom is offered respectively in its main shaft bottom surface, offer respectively the main oil outlet of sidewall and the auxiliary oil outlet of sidewall at main shaft sidewall middle part, the main filler opening in bottom is communicated with the main oil outlet of sidewall by the main oil inlet passage of making in main shaft, the auxiliary filler opening in bottom is communicated with the auxiliary oil outlet of sidewall by the auxiliary oil inlet passage of making in main shaft, main shaft upper end is offered main shaft upper end filler opening and is communicated with crankshaft oil outlet, the auxiliary spiral oil groove that the main spiral oil groove that the main oil outlet of sidewall is made by main shaft sidewall is made by main shaft sidewall with the auxiliary oil outlet of sidewall is communicated with main shaft upper end filler opening after pooling and mixing oil groove.
And described main shaft bottom is provided with an oily cap, Gai Youmao center is shaped with oily cap through hole, and this oil cap through hole makes the auxiliary filler opening of the main filler opening in main shaft bottom and bottom respectively expose 2/3rds.
And described oily cap adopts interference fit to be arranged on main shaft bottom.
And, on described main shaft sidewall, offering exhaust port, this exhaust port is communicated with main oil inlet passage and auxiliary oil inlet passage respectively.
And described exhaust port is arranged on the bottom of main shaft.
Advantage of the present invention and beneficial effect are:
1, special pair of oil groove bent axle of this freezer compressor, comprise main shaft, crank and crankshaft, crankshaft is arranged on main shaft by crank, the auxiliary filler opening of the main filler opening in bottom and bottom is offered respectively in its main shaft bottom surface, offer respectively the main oil outlet of sidewall and the auxiliary oil outlet of sidewall at main shaft sidewall middle part, the main filler opening in bottom is communicated with the main oil outlet of sidewall by the main oil inlet passage of making in main shaft, the auxiliary filler opening in bottom is communicated with the auxiliary oil outlet of sidewall by the auxiliary oil inlet passage of making in main shaft, main shaft upper end is offered main shaft upper end filler opening and is communicated with crankshaft oil outlet, the auxiliary spiral oil groove that the main spiral oil groove that the main oil outlet of sidewall is made by main shaft sidewall is made by main shaft sidewall with the auxiliary oil outlet of sidewall is communicated with main shaft upper end filler opening after pooling and mixing oil groove, structure of the present invention is two oil groove design bent axles, under the slow-speed of revolution, can improve to a great extent upper oil mass, especially the requirement of oil mass on can meeting the in the situation that of 1400 revs/min, and the cost of this bent axle and common constant speed compressor bent axle is suitable, significantly reduce the cost of frequency-changeable compressor.
2, main shaft of the present invention bottom is provided with an oily cap, Gai Youmao center is shaped with oily cap through hole, this oil cap through hole makes the auxiliary filler opening of the main filler opening in main shaft bottom and bottom respectively expose 2/3rds, oil cap adopts interference fit to be arranged on main shaft bottom, when oil-feed depth minus hour, lubricant oil is played a supporting role, can effectively improve upper oil mass.
3, on main shaft sidewall of the present invention, offer exhaust port, this exhaust port is communicated with main oil inlet passage and auxiliary oil inlet passage respectively, and this exhaust port can effectively be discharged the bubble sucking in lubricant oil, oil mass in increase.
4, scientific structure design of the present invention is reasonable, effectively reduces friction, has improved the upper oil mass under the frequency-changeable compressor slow-speed of revolution, and cost is lower, has improved the working life of freezer compressor.
Brief description of the drawings
Fig. 1 is plan view of the present invention;
Fig. 2 is plan view of the present invention (broken section);
Fig. 3 is the rear view of Fig. 1;
Fig. 4 is the right elevation of Fig. 1;
Fig. 5 is the left view of Fig. 1;
Fig. 6 is the enlarged view of looking up of Fig. 3.
Embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
Special pair of oil groove bent axle of a kind of freezer compressor, comprise main shaft 5, crank 3 and crankshaft 1, crankshaft is arranged on main shaft by crank, the auxiliary filler opening 16 of the main filler opening 15 in bottom and bottom is offered respectively in its main shaft bottom surface, offer respectively the main oil outlet 13 of sidewall and the auxiliary oil outlet 14 of sidewall at main shaft sidewall middle part, the main filler opening in bottom is communicated with the main oil outlet of sidewall by the main oil inlet passage 9 of making in main shaft, the auxiliary filler opening in bottom is communicated with the auxiliary oil outlet of sidewall by the auxiliary oil inlet passage 8 of making in main shaft, main shaft upper end is offered main shaft upper end filler opening 4 and is communicated with crankshaft oil outlet 2, the auxiliary spiral oil groove 11 that the main spiral oil groove 12 that the main oil outlet of sidewall is made by main shaft sidewall is made by main shaft sidewall with the auxiliary oil outlet of sidewall is communicated with main shaft upper end filler opening after pooling and mixing oil groove 10, on main shaft sidewall, offer exhaust port 6, this exhaust port is communicated with main oil inlet passage and auxiliary oil inlet passage respectively, exhaust port is arranged on the bottom of main shaft, main shaft bottom is provided with an oily cap 7, Gai Youmao center is shaped with oily cap through hole, this oil cap through hole makes the auxiliary filler opening of the main filler opening in main shaft bottom and bottom respectively expose 2/3rds, oil cap adopts interference fit to be arranged on main shaft bottom.
When the present invention works, under compressor low cruise condition, the auxiliary filler opening of the main filler opening in bottom and bottom of main shaft starts into lubricant oil, and the passage of this lubricant oil by separately enters main spiral oil groove and auxiliary spiral oil groove separately and converge to mixing oil groove from the main oil outlet of sidewall and the auxiliary oil outlet of sidewall and enter from crankshaft oil outlet and go out oil lubrication from main shaft upper end filler opening.
Claims (5)
1. special pair of oil groove bent axle of a freezer compressor, comprise main shaft, crank and crankshaft, crankshaft is arranged on main shaft by crank, it is characterized in that: the auxiliary filler opening of the main filler opening in bottom and bottom is offered respectively in main shaft bottom surface, offer respectively the main oil outlet of sidewall and the auxiliary oil outlet of sidewall at main shaft sidewall middle part, the main filler opening in bottom is communicated with the main oil outlet of sidewall by the main oil inlet passage of making in main shaft, the auxiliary filler opening in bottom is communicated with the auxiliary oil outlet of sidewall by the auxiliary oil inlet passage of making in main shaft, main shaft upper end is offered main shaft upper end filler opening and is communicated with crankshaft oil outlet, the auxiliary spiral oil groove that the main spiral oil groove that the main oil outlet of sidewall is made by main shaft sidewall is made by main shaft sidewall with the auxiliary oil outlet of sidewall is communicated with main shaft upper end filler opening after pooling and mixing oil groove.
2. special pair of oil groove bent axle of freezer compressor according to claim 1, it is characterized in that: described main shaft bottom is provided with an oily cap, Gai Youmao center is shaped with oily cap through hole, and this oil cap through hole makes the auxiliary filler opening of the main filler opening in main shaft bottom and bottom respectively expose 2/3rds.
3. special pair of oil groove bent axle of freezer compressor according to claim 2, is characterized in that: described oily cap adopts interference fit to be arranged on main shaft bottom.
4. special pair of oil groove bent axle of freezer compressor according to claim 1, is characterized in that: on described main shaft sidewall, offer exhaust port, this exhaust port is communicated with main oil inlet passage and auxiliary oil inlet passage respectively.
5. special pair of oil groove bent axle of freezer compressor according to claim 4, is characterized in that: described exhaust port is arranged on the bottom of main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126633.7A CN103899634A (en) | 2014-03-31 | 2014-03-31 | Special crankshaft with double oil grooves for refrigerator compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126633.7A CN103899634A (en) | 2014-03-31 | 2014-03-31 | Special crankshaft with double oil grooves for refrigerator compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103899634A true CN103899634A (en) | 2014-07-02 |
Family
ID=50991150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410126633.7A Pending CN103899634A (en) | 2014-03-31 | 2014-03-31 | Special crankshaft with double oil grooves for refrigerator compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103899634A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697337A (en) * | 2016-02-04 | 2016-06-22 | 广州万宝集团压缩机有限公司 | Self-adaptive oil supply crankshaft |
| CN105736315A (en) * | 2016-02-04 | 2016-07-06 | 广州万宝集团压缩机有限公司 | Hybrid power crank shaft for refrigeration compressor |
| EP3514384A1 (en) * | 2018-01-19 | 2019-07-24 | Nidec Global Appliance Germany GmbH | Crankshaft |
| CN115199507A (en) * | 2021-04-14 | 2022-10-18 | 安徽美芝制冷设备有限公司 | Crankshaft, variable frequency compressor and refrigeration equipment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6429686A (en) * | 1988-07-08 | 1989-01-31 | Hitachi Ltd | Sealed type scroll compressor |
| US6102160A (en) * | 1998-05-15 | 2000-08-15 | Copeland Corporation | Compressor lubrication |
| CN1497177A (en) * | 2002-10-21 | 2004-05-19 | 松下冷机株式会社 | Reciprocating electric compressor |
| US20040219048A1 (en) * | 2002-09-11 | 2004-11-04 | Takeshi Tsuchiya | Scroll fluid machine |
| CN1788161A (en) * | 2004-05-28 | 2006-06-14 | 松下电器产业株式会社 | Hermetically sealed compressor |
| CN201165958Y (en) * | 2007-12-20 | 2008-12-17 | 广州冷机股份有限公司 | Crankshaft structure of compressor for refrigeration |
| JP2009167954A (en) * | 2008-01-18 | 2009-07-30 | Panasonic Corp | Hermetic compressor |
| JP2012052494A (en) * | 2010-09-03 | 2012-03-15 | Panasonic Corp | Hermetically sealed compressor |
| CN203835936U (en) * | 2014-03-31 | 2014-09-17 | 扎努西电气机械天津压缩机有限公司 | Special double oil groove crankshaft for refrigerator compressor |
-
2014
- 2014-03-31 CN CN201410126633.7A patent/CN103899634A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6429686A (en) * | 1988-07-08 | 1989-01-31 | Hitachi Ltd | Sealed type scroll compressor |
| US6102160A (en) * | 1998-05-15 | 2000-08-15 | Copeland Corporation | Compressor lubrication |
| US20040219048A1 (en) * | 2002-09-11 | 2004-11-04 | Takeshi Tsuchiya | Scroll fluid machine |
| CN1497177A (en) * | 2002-10-21 | 2004-05-19 | 松下冷机株式会社 | Reciprocating electric compressor |
| CN1788161A (en) * | 2004-05-28 | 2006-06-14 | 松下电器产业株式会社 | Hermetically sealed compressor |
| CN201165958Y (en) * | 2007-12-20 | 2008-12-17 | 广州冷机股份有限公司 | Crankshaft structure of compressor for refrigeration |
| JP2009167954A (en) * | 2008-01-18 | 2009-07-30 | Panasonic Corp | Hermetic compressor |
| JP2012052494A (en) * | 2010-09-03 | 2012-03-15 | Panasonic Corp | Hermetically sealed compressor |
| CN203835936U (en) * | 2014-03-31 | 2014-09-17 | 扎努西电气机械天津压缩机有限公司 | Special double oil groove crankshaft for refrigerator compressor |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697337A (en) * | 2016-02-04 | 2016-06-22 | 广州万宝集团压缩机有限公司 | Self-adaptive oil supply crankshaft |
| CN105736315A (en) * | 2016-02-04 | 2016-07-06 | 广州万宝集团压缩机有限公司 | Hybrid power crank shaft for refrigeration compressor |
| CN105697337B (en) * | 2016-02-04 | 2017-10-31 | 广州万宝集团压缩机有限公司 | A kind of adaptive fuel feeding bent axle |
| EP3514384A1 (en) * | 2018-01-19 | 2019-07-24 | Nidec Global Appliance Germany GmbH | Crankshaft |
| WO2019141784A1 (en) * | 2018-01-19 | 2019-07-25 | Nidec Global Appliance Germany Gmbh | Crankshaft |
| CN111836963A (en) * | 2018-01-19 | 2020-10-27 | 思科普有限责任公司 | crankshaft |
| CN115199507A (en) * | 2021-04-14 | 2022-10-18 | 安徽美芝制冷设备有限公司 | Crankshaft, variable frequency compressor and refrigeration equipment |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140702 |