CN201679686U - Novel compressor crankshaft - Google Patents
Novel compressor crankshaft Download PDFInfo
- Publication number
- CN201679686U CN201679686U CN2009203181022U CN200920318102U CN201679686U CN 201679686 U CN201679686 U CN 201679686U CN 2009203181022 U CN2009203181022 U CN 2009203181022U CN 200920318102 U CN200920318102 U CN 200920318102U CN 201679686 U CN201679686 U CN 201679686U
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- China
- Prior art keywords
- lower shaft
- oil
- new type
- compression machine
- compressor
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- Expired - Fee Related
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Abstract
The utility model relates to a crankshaft of a refrigerating compressor, comprising an upper shaft and a lower shaft which are different. A baffle block is arranged between the upper shaft and the lower shaft. The upper shaft is provided with an upper shaft oil hole, and the lower shaft is provided with a lower shaft oil hole. The crankshaft is characterized in that the tail end of the upper side of the lower shaft oil hole is provided with a gas discharging hole; the lower side of the lower shaft oil hole is provided with an oil nozzle cavity. One gas discharging hole is arranged on the original compressor crankshaft, so the oil can be smoothly and continuously fed into the lower shaft oil hole. The oil nozzle cavity is used for installing the oil nozzle, so the coaxiality of the oil feeding nozzle and the lower shaft of the crankshaft can be well ensured; after the oil feeding nozzle is installed, the oil feeding system of the compressor is improved; as the oil feeding nozzle has thin wall, the rated power of the compressor is further decreased in running, thereby enhancing the efficiency of the compressor.
Description
Technical field
The utility model relates to a kind of compressor, especially relates to a kind of bent axle of refrigeration compressor.
Background technique
Refrigeration compressor is made of motor and two major components of piston, and the rotor of motor links to each other with a bent axle, and bent axle is divided into axle and lower shaft, wherein lower shaft and rotor machine connect, last axle links to each other with piston, the rotation of driven by motor bent axle, and by the bent axle piston motion of taking.Therefore bent axle is the main rotatable parts of compressor, and the performance of bent axle and structure are directly connected to the service behaviour of compressor.Therefore the distribution of the installation precision of bent axle and lubricant oil is all extremely important.Publication number is the bent axle that the Chinese patent of CN1427154 discloses a kind of refrigeration compressor.It is characterized in that moving for making refrigerator oil lean on centrifugal force to rise, the oil circuit of refrigerator oil forms along circumferential surface; A part is pressed into the axial region of the filled circles tubular of rotor and bearing; At an end of axial region, be eccentric in the eccentric part that axial region center and refrigerator oil oil circuit are communicated with; At the other end of axial region, and the oil pump of when axial region rotates, pumping to the oil circuit of refrigerator oil by centrifugal force.
But technique scheme still exists the oil-feed instability, installs and problem that the precision of processing is difficult to guarantee etc., has influenced compressor operating stability and working life.
Summary of the invention
The utility model mainly is the technical problem that solves the lubricant oil oil-feed instability etc. of existing in prior technology compressor crank shaft, provides a kind of lubricant oil oil-feed stable new type of compression machine crankshaft.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of new type of compression machine crankshaft, comprise axle and lower shaft on the out-of-alignment, described going up between axle and the lower shaft is provided with a block, last axle is provided with the shafting oil hole, lower shaft is provided with the lower shaft oilhole, the upside end that it is characterized in that described lower shaft oilhole is provided with vent hole, and the downside of lower shaft oilhole is provided with the oil nozzle chamber.Technological scheme original compressor crank shaft even on be provided with a vent hole, make that the oil-feed of lower shaft oilhole is more smooth, can continue oil-feed.The oil nozzle chamber is used to install oil nozzle, can better guarantee the coaxality of oil nozzle and bent axle lower shaft, install oil nozzle and can make on the compressor oil system more perfect, because last oil nozzle is a thin-wall part, compressor rated power also further reduces when operation, thereby has improved the efficient of compressor.
As preferably, described vent hole passes described block, and outlet is located at the upside of block.The upside of block does not contact with other parts after crankshaft installed is finished, and makes this vent hole to keep clear.Further guarantee the smooth and easy of oil-feed.
As preferably, the aperture of described vent hole is 1-3mm.The aperture of this vent hole is too little then to be unfavorable for oil-feed, if the aperture of vent hole is excessive, relatively large leakage of oil takes place easily then, and this programme is to have selected this scope on the basis of accurate Calculation and a large amount of experiments.
As preferably, the joint of described lower shaft and block is provided with the conical surface that play the guiding role.Play leading role when the main effect of this conical surface is the rotor hot jacket, make the easy for installation of rotor, and the position degree of installing is stable.
As preferably, the axial wall of described lower shaft is provided with a screw type finishing bathtray that is connected with described lower shaft oilhole, and the rotation direction of this finishing bathtray is opposite with the sense of rotation of bent axle.This kind structure make compressor when operation the bent axle wall tail off with the friction probability of body, thereby the friction factor that also reduces reduces input power, the raising machine performance.
As preferably, both sides, lower end, described oil nozzle chamber are provided with a symmetrical locating slot.This locating slot is used to process crank off-centre, has prolonged the machining benchmark locating point, and the parallelism of crank and main shaft is got better protection.
The beneficial effect that brings of the present utility model is, solved the technical problem of the lubricant oil oil-feed instability etc. of existing in prior technology compressor crank shaft, realized that a kind of lubricant oil oil-feed is stable, installed and easy to process, the precision height, the new type of compression machine crankshaft of working stability.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is a kind of sectional views of the present utility model;
Accompanying drawing 3 is a kind of left views of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: as Fig. 1, Fig. 2, shown in Figure 3, the utility model is a kind of new type of compression machine crankshaft, comprise axle and lower shaft on the out-of-alignment, described going up between axle and the lower shaft is provided with a block, the joint of lower shaft and block is provided with the conical surface that play the guiding role, the axial wall of lower shaft is provided with a screw type oil groove 2 that is connected with described lower shaft oilhole, and the rotation direction of this oil groove is opposite with the sense of rotation of bent axle.Last axle is provided with shafting oil hole 1, and lower shaft is provided with the lower shaft oilhole, and the upside end of described lower shaft oilhole is provided with vent hole 3, and vent hole passes described block, and the upside of block is located in outlet, and its aperture is 3mm.The downside of lower shaft oilhole is provided with oil nozzle chamber 4, and both sides, lower end, oil nozzle chamber are provided with a symmetrical locating slot 5.
The technical program is provided with a vent hole on the basis of original compressor crank shaft, the upside of block does not contact with other parts after crankshaft installed is finished, and makes this vent hole to keep clear.Further guarantee the smooth and easy of oil-feed.The oil nozzle chamber is used to install oil nozzle, can better guarantee the coaxality of oil nozzle and bent axle lower shaft, install oil nozzle and can make on the compressor oil system more perfect, because last oil nozzle is a thin-wall part, compressor rated power also further reduces when operation, thereby has improved the efficient of compressor.
So it is stable to the utlity model has oil-feed, install and easy to process, the precision height, working stability makes with the life-span and feature such as grows.
Claims (8)
1. new type of compression machine crankshaft, comprise axle and lower shaft on the out-of-alignment, described going up between axle and the lower shaft is provided with a block, last axle is provided with shafting oil hole (1), lower shaft is provided with the lower shaft oilhole, the upside end that it is characterized in that described lower shaft oilhole is provided with vent hole (3), and the downside of lower shaft oilhole is provided with oil nozzle chamber (4).
2. a kind of new type of compression machine crankshaft according to claim 1 is characterized in that described vent hole passes described block, and outlet is located at the upside of block.
3. a kind of new type of compression machine crankshaft according to claim 1 and 2, the aperture that it is characterized in that described vent hole is 1-3mm.
4. a kind of new type of compression machine crankshaft according to claim 1 is characterized in that the joint of described lower shaft and block is provided with the conical surface that play the guiding role.
5. according to claim 1 or 2 or 4 described a kind of new type of compression machine crankshafts, it is characterized in that the axial wall of described lower shaft is provided with a screw type finishing bathtray that is connected with described lower shaft oilhole, the rotation direction of this finishing bathtray is opposite with the sense of rotation of bent axle.
6. a kind of new type of compression machine crankshaft according to claim 3 is characterized in that the axial wall of described lower shaft is provided with a screw type finishing bathtray that is connected with described lower shaft oilhole, and the rotation direction of this finishing bathtray is opposite with the sense of rotation of bent axle.
7. according to claim 1 or 2 or 4 described a kind of new type of compression machine crankshafts, it is characterized in that both sides, lower end, described oil nozzle chamber are provided with a symmetrical locating slot.
8. a kind of new type of compression machine crankshaft according to claim 5 is characterized in that both sides, lower end, described oil nozzle chamber are provided with a symmetrical locating slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203181022U CN201679686U (en) | 2009-12-23 | 2009-12-23 | Novel compressor crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203181022U CN201679686U (en) | 2009-12-23 | 2009-12-23 | Novel compressor crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201679686U true CN201679686U (en) | 2010-12-22 |
Family
ID=43344730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203181022U Expired - Fee Related CN201679686U (en) | 2009-12-23 | 2009-12-23 | Novel compressor crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201679686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720660A (en) * | 2012-06-21 | 2012-10-10 | 广州万宝集团压缩机有限公司 | Integrated oil pumping mechanism for refrigerator compressor |
-
2009
- 2009-12-23 CN CN2009203181022U patent/CN201679686U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720660A (en) * | 2012-06-21 | 2012-10-10 | 广州万宝集团压缩机有限公司 | Integrated oil pumping mechanism for refrigerator compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hangzhou Qianjiang Compressor Co., Ltd. Assignor: Hangzhou Qianjiang Refrigeration Group Co., Ltd. Contract record no.: 2011330001199 Denomination of utility model: Novel compressor crankshaft Granted publication date: 20101222 License type: Exclusive License Record date: 20111010 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20141223 |
|
| EXPY | Termination of patent right or utility model |