CN207647728U - It is a kind of that there is the piston crank mechanism for reducing friction coefficient and loss power - Google Patents
It is a kind of that there is the piston crank mechanism for reducing friction coefficient and loss power Download PDFInfo
- Publication number
- CN207647728U CN207647728U CN201721822022.1U CN201721822022U CN207647728U CN 207647728 U CN207647728 U CN 207647728U CN 201721822022 U CN201721822022 U CN 201721822022U CN 207647728 U CN207647728 U CN 207647728U
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- piston
- connecting rod
- guide
- friction coefficient
- pin
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Abstract
It is a kind of that there is the piston crank mechanism for reducing friction coefficient and loss power, including connecting rod, piston, piston pin and fixed pin, connecting rod two end is respectively piston guide and excentric sleeve, piston side wall offers crank-guide way, piston axially offers piston pin hole, piston and piston pin bottom corresponding position offer fixed pin holes, the piston guide end sleeve has spring pad, spring pad includes upper and lower two elastic pieces and connection sheet, two elastic piece one end extend after being connect respectively with connection sheet upper and lower ends to intermediate, inclined, and it is formed and is flared in end back-flexing, elastic piece offers piston pin hole.The utility model advantage is when the bent axle drive link of compressor makes piston back and forth movement in cylinder, it can make contactless face between connecting rod and piston, it avoids piston and contacts friction with face with the direct face of connecting rod, but so that connecting rod piston guide is formed line with spring pad and contact, the input power of compressor can be reduced, noise is reduced, the performance of compressor is improved.
Description
Technical field
The utility model is related to piston rod equipment technical fields, more particularly to a kind of to have reduction friction coefficient and loss
The piston crank mechanism of power.
Background technology
Refrigeration compressor is the core and heart of refrigeration system.The ability and feature for compressing power traction determine refrigeration system
Ability and feature, in some sense, designing and matching for refrigeration system is exactly to embody the ability of compressor.Piston type pressure
Contracting machine is a kind of frequent species in refrigeration compressor, and piston crank mechanism is the important component of piston compressor.
Existing piston crank mechanism is led because height at connecting rod piston guide and piston rod well width have certain gap
Since the weight reasons of connecting rod itself make lower face and the piston rod slot of connecting rod piston guide after activation plug and connecting rod assembling
Bottom surface forming face is contacted with face, when the bent axle drive link of compressor makes piston back and forth movement in cylinder, connecting rod or so fortune
The contact surface between connecting rod and piston can be made to form friction when dynamic, therefore lead to unnecessary power attenuation, influence compressor
Rotating speed, that is to say, that reach standard output power need increase compressor input power, this to compressor efficiency, the service life,
It has a certain impact in terms of noise.
Utility model content
The utility model will solve problem of the prior art, provide a kind of work for having and reducing friction coefficient and loss power
Link mechanism is filled in, noise is reduced, improves the performance of compressor.
In order to achieve the above objectives, the technical solution adopted in the utility model is as follows：
A kind of have a piston crank mechanism for reducing friction coefficient and loss power, including connecting rod, piston, piston pin and solid
Rationed marketing, connecting rod two end are respectively piston guide and excentric sleeve, and piston side wall offers crank-guide way, and piston axially offers piston
Pin hole, piston and piston pin bottom corresponding position offer fixed pin holes, and the piston guide end sleeve has spring pad, spring pad
Including upper and lower two elastic pieces and connection sheet, two elastic piece one end connect respectively with connection sheet upper and lower ends after to intermediate, inclined
Extend, and formed and be flared in end back-flexing, elastic piece offers piston pin hole.When assembly, by two elasticity of spring pad
Piece is clipped in piston pin set upper and lower ends, is then inserted into crank-guide way, by piston pin from the piston pin hole insertion to component, with admittedly
Rationed marketing is inserted into fixed pin holes and is fixed, and at this time under the action of spring pad, piston guide is in and is not contacted with crank-guide way inner wall
Airborne, i.e., connecting rod piston guide in the piston rod slot in balanced up and down, it is centrally located, avoid piston and
Direct face contacts friction with face between connecting rod.Spring pad has the characteristics that smooth surface and high rigidity and elastic, spring pad
It is designed to arc surface with connecting rod contact position, connecting rod piston guide is made to contact friction in line with spring pad.
Preferably, offering the oilhole of connection between the piston guide and excentric sleeve.Lubricating oil is from the inclined of bent axle
Outflow is lubricated eccentric shaft side wall and excentric sleeve inner wall at mandrel oil outlet, and lubricating oil can flow to piston by oilhole
The contact surface of guide and piston pin is lubricated.
Preferably, being provided with annular groove with oilhole corresponding position on the piston pin, it is convenient for lubricating oil circumferential flow, lubrication
Evenly comprehensively, lubricant effect is improved.
Preferably, offering counterbore at the top of the piston pin, counterbore base is less than annular groove, is offered on annular groove and counterbore
The oilhole of connection.Lubricating oil in annular groove flows into counterbore by oilhole, flowed to after overflowing piston pin outer wall and piston interface into
Row lubrication.
Preferably, being provided with chamfering slot at the upper and lower end face of the crank-guide way and the transition junctions of left and right end face, reduce
The friction of connecting rod and spring pad and piston inner wall, and two chamfering slots of lower section are conducive to the guiding outflow of lubricating oil.
Preferably, the fixed pin is in elastic construction hollow and with open slot so that the diameter of fixed pin can be with
Fixed pin holes are suitably larger than, are firmly embedded in fixed pin holes after insertion under elastic reaction.
The beneficial effects of the utility model are：When the bent axle drive link of compressor makes piston back and forth movement in cylinder
When, i.e., connecting rod piston guide when band piston side-to-side movement, can be such that nothing between connecting rod and piston connects in piston rod slot
Contacting surface avoids piston and contacts friction with face with the direct face of connecting rod, but so that connecting rod piston guide is formed line with spring pad and contact,
The input power of compressor can be reduced, noise is reduced, improves the performance of compressor.
Description of the drawings
Fig. 1 is the stereogram of the utility model；
Fig. 2 is the front view of the utility model；
Fig. 3 is the explosive view of the utility model；
Fig. 4 is the partial sectional view of the utility model；
Fig. 5 is the sectional view of the utility model；
Fig. 6 is the stereogram of spring pad in the utility model；
Fig. 7 is the front view of spring pad in the utility model；
Fig. 8 is the stereogram of piston in the utility model；
Fig. 9 is the front view of piston in the utility model；
Figure 10 is the stereogram of piston pin in the utility model；
Figure 11 is the sectional view of piston pin in the utility model；
In figure：1, connecting rod；1.1, piston guide；1.2, excentric sleeve；2, piston；2.1, crank-guide way；2.2, chamfering slot；3、
Piston pin；3.1, annular groove；3.2, counterbore；4, fixed pin；5, spring pad；5.1, elastic piece；5.2, connection sheet；100, piston pin
Hole；200, fixed pin holes；300, oilhole.
Specific implementation mode
The utility model is further described below by specific implementation mode and attached drawing.
The embodiment of the utility model is：As shown in Fig. 1-5 and Fig. 8-9, one kind having reduction friction coefficient and loss
The piston crank mechanism of power, including connecting rod 1, piston 2, piston pin 3 and fixed pin 4,1 both ends of connecting rod are respectively piston guide
1.1 and excentric sleeve 1.2,2 side wall of piston offers crank-guide way 2.1, and piston 2 is axial to offer piston pin hole 100,2 He of piston
3 bottom corresponding position of piston pin offers fixed pin holes 200.In conjunction with shown in Fig. 6-7,1.1 end of piston guide is cased with spring pad
5, spring pad 5 include upper and lower two elastic pieces 5.1 and connection sheet 5.2, two 5.1 one end of elastic piece respectively in connection sheet 5.2
Extend to intermediate, inclined after lower both ends connection, and formed and be flared in end back-flexing, elastic piece 5.1 offers piston pin hole
100。
In conjunction with shown in Fig. 5 and Figure 10-11, the oilhole 300 of connection is offered between piston guide 1.1 and excentric sleeve 1.2,
Annular groove 3.1 is provided on piston pin 3 with 300 corresponding position of oilhole, 3 top of piston pin offers counterbore 3.2,3.2 bottom of counterbore
Less than annular groove 3.1, the oilhole 300 being connected to counterbore 3.2 is offered on annular groove 3.1.
Wherein, it in conjunction with shown in Fig. 8-9, is provided with down at the upper and lower end face of crank-guide way 2.1 and the transition junctions of left and right end face
Chamfered groove 2.2.
In addition, fixed pin 4 is in elastic construction hollow and with open slot.
The foregoing is merely the structure features of specific embodiment of the utility model, but the utility model to be not limited to
This, the utility model can be used on similar product, and any those skilled in the art is in the field of the utility model, institute
The changes or modifications of work all cover among the scope of the claims of the utility model.
Claims (6)
1. a kind of having the piston crank mechanism for reducing friction coefficient and loss power, including connecting rod（1）, piston（2）, piston pin
（3）And fixed pin（4）, connecting rod（1）Both ends are respectively piston guide（1.1）And excentric sleeve（1.2）, piston（2）Side wall opens up
There is crank-guide way（2.1）, piston（2）Axially offer piston pin hole（100）, piston（2）And piston pin（3）It opens bottom corresponding position
Equipped with fixed pin holes（200）, it is characterised in that：The piston guide（1.1）End is cased with spring pad（5）, spring pad（5）Including
Upper and lower two elastic pieces（5.1）And connection sheet（5.2）, two elastic pieces（5.1）One end respectively with connection sheet（5.2）Upper and lower ends
Extend to intermediate, inclined after connection, and is formed and be flared in end back-flexing, elastic piece（5.1）Offer piston pin hole（100）.
2. a kind of piston crank mechanism with reduction friction coefficient and loss power according to claim 1, feature
It is：The piston guide（1.1）And excentric sleeve（1.2）Between offer the oilhole of connection（300）.
3. a kind of piston crank mechanism with reduction friction coefficient and loss power according to claim 2, feature
It is：The piston pin（3）Upper and oilhole（300）Corresponding position is provided with annular groove（3.1）.
4. a kind of piston crank mechanism with reduction friction coefficient and loss power according to claim 3, feature
It is：The piston pin（3）Top offers counterbore（3.2）, counterbore（3.2）Bottom is less than annular groove（3.1）, annular groove（3.1）On
It offers and counterbore（3.2）The oilhole of connection（300）.
5. a kind of piston crank mechanism with reduction friction coefficient and loss power according to claim 1, feature
It is：The crank-guide way（2.1）Upper and lower end face and left and right end face transition junctions at be provided with chamfering slot（2.2）.
6. a kind of piston crank mechanism with reduction friction coefficient and loss power according to claim 1, feature
It is：The fixed pin（4）In elastic construction hollow and with open slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721822022.1U CN207647728U (en) | 2017-12-23 | 2017-12-23 | It is a kind of that there is the piston crank mechanism for reducing friction coefficient and loss power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721822022.1U CN207647728U (en) | 2017-12-23 | 2017-12-23 | It is a kind of that there is the piston crank mechanism for reducing friction coefficient and loss power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207647728U true CN207647728U (en) | 2018-07-24 |
Family
ID=62878300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721822022.1U Expired - Fee Related CN207647728U (en) | 2017-12-23 | 2017-12-23 | It is a kind of that there is the piston crank mechanism for reducing friction coefficient and loss power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207647728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271250A (en) * | 2018-12-04 | 2020-06-12 | 安徽美芝制冷设备有限公司 | Piston assembly and compressor |
-
2017
- 2017-12-23 CN CN201721822022.1U patent/CN207647728U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271250A (en) * | 2018-12-04 | 2020-06-12 | 安徽美芝制冷设备有限公司 | Piston assembly and compressor |
| CN111271250B (en) * | 2018-12-04 | 2021-10-08 | 安徽美芝制冷设备有限公司 | Piston assembly and compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180724 Termination date: 20201223 |