CN201391433Y - Crank-shaft piston refrigerator compressor - Google Patents
Crank-shaft piston refrigerator compressor Download PDFInfo
- Publication number
- CN201391433Y CN201391433Y CN200920037672U CN200920037672U CN201391433Y CN 201391433 Y CN201391433 Y CN 201391433Y CN 200920037672 U CN200920037672 U CN 200920037672U CN 200920037672 U CN200920037672 U CN 200920037672U CN 201391433 Y CN201391433 Y CN 201391433Y
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- China
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- bearing
- bent axle
- cylindrical shell
- cylinder frame
- piston type
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Abstract
The utility model provides an improved crank-shaft piston refrigerator compressor, which overcomes the defect existing in the bearing of the existing compressor. A bearing of the crank-shaft piston refrigerator compressor has high cost performance and excellent size stability, so as to facilitate for batch processing. The crank-shaft piston refrigerator compressor comprises a shell, a crank shaft, an air cylinder frame, a motor stator, a connecting rod, a piston and the bearing, wherein the bearing is arranged at the matching position of the bearing hole of the air cylinder frame and the crank shaft; the bearing comprises a barrel, and one end of the barrel is provided with an extension end surface; the bearing is axially provided with an expanding slot; the barrel of the bearing is sheathed in the bearing hole of the air cylinder frame; the crank shaft is arranged in the barrel of the bearing; and the expanding end surface of the bearing is matched with the top surface of the air cylinder frame and the crank shaft.
Description
Technical field
The present invention relates to a kind of bent axle piston type freezer compressor, relate in particular to a kind of compressor that adopts self oiling bearing.
Background technique
At present, the piston type freezer compressor has two kinds of solutions usually in the thrust surface and the cylinder frame contacting point of bent axle:
1, adopt ball bearing to add the underlay slice structure, to be steel ball move on cylinder frame bearing hole and upper plane that bent axle cooperates its shortcoming, and stability is not strong, and area of contact is little, and bearing capacity is lower, and ball bearing also can bring noise in addition.
2, another kind is to adopt the cylinder frame bearing hole directly to contact with bent axle, its shortcoming be this firmly-the hard way of contact, the surface of contact working condition is more abominable, causes input power and noise higher.
Summary of the invention
The utility model is to overcome the defective that existing bearing of compressor aspect exists, and a kind of improved bent axle piston type freezer compressor is provided, its bearing cost performance height of this compressor, and bearing has good dimensional stability, is convenient to batch process.
The objective of the invention is to realize by following measure:
A kind of bent axle piston type freezer compressor, comprise housing, bent axle, cylinder frame, motor stator, rotor, connecting rod, piston, bearing, bearing is arranged on cylinder frame bearing hole and bent axle cooperation place, it is characterized in that: described bearing comprises a cylindrical shell, cylindrical shell one end is provided with the extension end face, and bearing shaft is to having a telescopic chute, and described bearing cylindrical shell is sleeved in the bearing hole of cylinder frame, bent axle is packed in the bearing cylindrical shell, and bearing extension end face cooperates with cylinder frame end face and bent axle.
Be provided with the groove of ring cutting in the cylinder frame bearing hole, bearing cylindrical shell and this groove form interference fit.The length of the degree of depth of the groove of ring cutting and bearing cylindrical shell is suitable.
Form Spielpassung between bearing cylindrical shell and the bent axle.
The coaxality of bearing cylindrical shell and cylinder frame bearing hole is less than 0.03mm.
The surface of bearing of the present utility model is provided with self-lubricating layer, to guarantee bearing operation freely.Self-lubricating layer can adopt PTFE metallo-plastic layer, graphite layer, also can adopt PTFE metallo-plastic and graphite mixing layer.
The present invention has following advantage compared to existing technology:
PTFE metallo-plastic self oiling bearing is matrix with the metallic material, intermediate sintering porous spherical bronze powder, and it is the working surface of master's high-abrasive material as bearing that the surface is covered with PTFE.Raising along with the refrigerator efficiency level in the global range improves an urgent demand that the freezer compressor Energy Efficiency Ratio is each compressor manufacturer conscientiously.The utility model has improved compressor internal motion pair, changes metal and composite material contact friction into by original metal and Metal Contact friction, reduces consumption of compressor and noise, the working life of having improved compressor on the other hand on the one hand greatly.
The utility model has following five advantages compared to existing technology:
1, this bearing is after the secondary application of freezer compressor internal motion, and the situation without bearing can reduce input power about 6% relatively.
2, the superiority of the relative ball bearing of this bearing has been to eliminate the negative factor of the noise rising that brings after ball bearing is used.
3, this bearing has good capacity of heat transmission, and good wear-resisting property and extremely low friction factor can be provided, and improves the working life of compressor.
4, this bearing has good dimensional stability, is convenient to batch process.
5, cost performance height of the present utility model.
Description of drawings:
Fig. 1: the internal structure schematic representation of the utility model piston type freezer compressor.
Fig. 2: the local enlarged diagram of bent axle support place among Fig. 1.
Fig. 3: bearing enlarged diagram.
Among the figure: the 1-motor stator; The 2-rotor; The 3-piston; The 4-connecting rod; The 5-bent axle; The 6-bearing; The 7-cylinder frame; The 8-cylindrical shell; 9-extension end face.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing, and protection domain of the present utility model is not limited to the description content of specification, must the time to determine according to the technical scope of claim.
As shown in Figure 1, bent axle piston type freezer compressor of the present utility model, comprise housing, bent axle 5, cylinder frame 7, motor stator 1, rotor 2, connecting rod 4, piston 3, bearing 6, bearing 6 is arranged on cylinder frame bearing hole and bent axle 5 cooperation places, bearing 6 comprises a cylindrical shell 8, cylindrical shell 8 one ends are provided with extension end face 9, bearing 6 axially has a telescopic chute, described bearing cylindrical shell 8 is sleeved in the bearing hole of cylinder frame 7, bent axle 5 is sleeved in the bearing cylindrical shell 8, and bearing extension end face 9 cooperates with cylinder frame 7 end faces and bent axle 5.
Be provided with the groove of ring cutting in the cylinder frame bearing hole, this groove of bearing cylindrical shell forms interference fit, and this interference fit provides fixing effect for bearing 6.The length of the degree of depth of the groove of ring cutting and bearing cylindrical shell 8 is suitable.Form Spielpassung between bearing cylindrical shell 8 and the bent axle 5.The coaxality of bearing cylindrical shell 8 and cylinder frame 7 bearing holes is less than 0.03mm.
The surface of bearing 6 is provided with self-lubricating layer, and self-lubricating layer is a PTFE metallo-plastic layer.This PTFE metallo-plastic self oiling bearing is to be matrix with the metallic material, and the casting of intermediate sintering porous spherical bronze powder forms, and it is the working surface of master's high-abrasive material as bearing that the surface is covered with PTFE.The telescopic chute that bearing 6 is axial, promptly this telescopic chute is arranged on bearing cylindrical shell and extension end face continuously, and it forms when bearing 6 cast forms.This telescopic chute has certain contractibility, thereby has guaranteed the good fit of it and cylinder frame bearing hole and bent axle.Improved compressor internal motion pair thus,, changed metal and composite material contact friction into, also improved the working life of compressor when reducing consumption of compressor and noise greatly by original metal and Metal Contact friction.
The utility model adopts PTFE metallo-plastic self oiling bearing, because this bearing has good capacity of heat transmission, and can provide good wear-resisting property and extremely low friction factor, improves the working life of compressor.This bearing has good dimensional stability, is convenient to batch process.
In addition, self-lubricating layer of the present utility model also can adopt graphite layer, the self-lubricating layer that can also adopt PTFE metallo-plastic and graphite blending material to make, and self-lubricating layer is coated on the surface of bearing.
Claims (7)
1, a kind of bent axle piston type freezer compressor, comprise housing, bent axle, cylinder frame, motor stator, rotor, connecting rod, piston, bearing, bearing is arranged on cylinder frame bearing hole and bent axle cooperation place, it is characterized in that: described bearing comprises a cylindrical shell, cylindrical shell one end is provided with the extension end face, and bearing shaft is to having a telescopic chute, and described bearing cylindrical shell is sleeved in the bearing hole of cylinder frame, bent axle is packed in the bearing cylindrical shell, and bearing extension end face cooperates with cylinder frame end face and bent axle.
2, bent axle piston type freezer compressor according to claim 1 is characterized in that: the groove, bearing cylindrical shell and the bearing hole formation interference fit that are provided with ring cutting at cylinder frame bearing hole inner circle wall.
3, bent axle piston type freezer compressor according to claim 2, it is characterized in that: the length of the degree of depth of the groove of described ring cutting and bearing cylindrical shell is suitable.
4, bent axle piston type freezer compressor according to claim 1 is characterized in that: form Spielpassung between bearing cylindrical shell and the bent axle.
5, bent axle piston type freezer compressor according to claim 1, it is characterized in that: the coaxality of bearing cylindrical shell and cylinder frame bearing hole is less than 0.03mm.
6, according to claim 1,2,3,4 or 5 described bent axle piston type freezer compressors, it is characterized in that: the surface of described bearing is provided with self-lubricating layer.
7, bent axle piston type freezer compressor according to claim 6, it is characterized in that: described self-lubricating layer is PTFE metallo-plastic layer or graphite layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920037672U CN201391433Y (en) | 2009-01-16 | 2009-01-16 | Crank-shaft piston refrigerator compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920037672U CN201391433Y (en) | 2009-01-16 | 2009-01-16 | Crank-shaft piston refrigerator compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201391433Y true CN201391433Y (en) | 2010-01-27 |
Family
ID=41598260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920037672U Expired - Fee Related CN201391433Y (en) | 2009-01-16 | 2009-01-16 | Crank-shaft piston refrigerator compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201391433Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103370550A (en) * | 2011-01-13 | 2013-10-23 | 惠而浦股份有限公司 | Bearing arrangement for a reciprocating refrigeration compressor |
| CN104131960A (en) * | 2014-07-25 | 2014-11-05 | 浙江美亚特精密机械有限公司 | Piston driving mechanism for refrigeration compressor |
| CN105332892A (en) * | 2014-08-11 | 2016-02-17 | 珠海格力节能环保制冷技术研究中心有限公司 | Reciprocating compressor and refrigerator with reciprocating compressor |
| CN106385117A (en) * | 2016-11-29 | 2017-02-08 | 安徽美芝制冷设备有限公司 | Motor used for compressor and compressor |
-
2009
- 2009-01-16 CN CN200920037672U patent/CN201391433Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103370550A (en) * | 2011-01-13 | 2013-10-23 | 惠而浦股份有限公司 | Bearing arrangement for a reciprocating refrigeration compressor |
| CN103370550B (en) * | 2011-01-13 | 2016-03-02 | 惠而浦股份有限公司 | For the bearing means of reciprocating type refrigeration compressor |
| CN104131960A (en) * | 2014-07-25 | 2014-11-05 | 浙江美亚特精密机械有限公司 | Piston driving mechanism for refrigeration compressor |
| CN105332892A (en) * | 2014-08-11 | 2016-02-17 | 珠海格力节能环保制冷技术研究中心有限公司 | Reciprocating compressor and refrigerator with reciprocating compressor |
| CN106385117A (en) * | 2016-11-29 | 2017-02-08 | 安徽美芝制冷设备有限公司 | Motor used for compressor and compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20180116 |