CN104747415A - Integrated connecting rod and compressor - Google Patents
Integrated connecting rod and compressor Download PDFInfo
- Publication number
- CN104747415A CN104747415A CN201310729523.5A CN201310729523A CN104747415A CN 104747415 A CN104747415 A CN 104747415A CN 201310729523 A CN201310729523 A CN 201310729523A CN 104747415 A CN104747415 A CN 104747415A
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- connecting rod
- center line
- end surface
- axis hole
- con
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- 210000000707 wrist Anatomy 0.000 claims description 14
- 230000009471 action Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000004141 microcephaly Diseases 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Abstract
The invention relates to an integrated connecting rod and a compressor. The integrated connecting rod comprises a connecting rod body, a first connecting rod head and a second connecting rod head, wherein the connecting rod body is rod-shaped; the first connecting rod head and the second connecting rod head are respectively fixed at the two ends of the connecting rod body; the upper end surface and the lower end surface of the first connecting rod head are symmetric corresponding to the center line of the connecting rod body; the upper end surface and the lower end surface of the second connecting rod head are symmetric corresponding to the center line of the connecting rod body; a first axle hole is formed in the first connecting rod head; a second axle hole is formed in the second connecting rod head; the upper end surface and the lower end surface of the first axle hole are symmetric corresponding to the center line of the connecting rod body; and the upper end surface and the lower end surface of the second axle hole are dissymmetric corresponding to the center line of the connecting rod body so as to achieve the purpose of reducing the frictional loss.
Description
Technical field
The present invention relates to a kind of linkage structure and compressor, particularly relate to a kind of connecting rod of using within the compressor and a kind of fully closed piston compressor.
Background technique
In prior art, completely closed piston compressor generally adopts monolithic linkage structure, refers to shown in Fig. 1, and it is the schematic front view of the monolithic linkage of prior art, and monolithic linkage 100 comprises first connecting rod head 110, second connecting rod head 120 and con-rod only 130.
Described first connecting rod head 110 is symmetrical with the center line of upper and lower end face all about described con-rod only 130 of described second connecting rod head 120.Described first connecting rod head 110 is arranged the first axis hole 112, described second connecting rod head 120 is arranged the second axis hole 122.The distance S1 of the described upper-end surface of the second axis hole 122 and the center line of described con-rod only 130 equals the distance S2 of the described lower end surface of the second axis hole 122 and the center line of described con-rod only 130.
Described first connecting rod head 110 is arranged in piston, when described first connecting rod head 110 is in piston during to-and-fro motion compressed action, because bent axle exists plastic deformation, the active force of bent axle to described monolithic linkage 100 is not the centerline direction along described monolithic linkage 100, thus when causing piston to move in cylinder, also can be subject to a part of radial force, increase frictional loss.
Die cavity height by piston affects, and the height not by unrestrictedly reducing described second connecting rod head 120 realizes reducing friction area, to reach the object reducing power consumption; Otherwise described monolithic linkage 100 can be caused excessive at the play up and down of piston pin hole centerline direction, increase frictional loss on the contrary; And the die cavity height of piston reduces, piston mass increases, and can cause the increase of reciprocal inertia force.
In view of above-mentioned defect, the present inventor obtains the invention finally through long research and practice.
Summary of the invention
Based on this, be necessary to provide a kind of monolithic linkage of reducing friction loss and compressor.
A kind of monolithic linkage of the present invention, comprises con-rod only, first connecting rod head and second connecting rod head, and con-rod only is shaft-like, and first connecting rod head and second connecting rod head are separately fixed at the two ends of con-rod only,
The upper-end surface of described first connecting rod head and lower end surface are symmetrical relative to the center line of described con-rod only,
The upper-end surface of described second connecting rod head and lower end surface are symmetrical relative to the center line of described con-rod only,
Described first connecting rod head arranges the first axis hole, described second connecting rod head arranges the second axis hole;
The upper-end surface of described first axis hole and lower end surface are symmetrical relative to the center line of described con-rod only;
Upper-end surface and the lower end surface of described second axis hole are asymmetric relative to the center line of described con-rod only.
As a kind of embodiment, the center line of described first axis hole, the center line of described second axis hole are respectively perpendicular to the center line of described con-rod only.
As a kind of embodiment, the distance S1 of the upper-end surface of described second axis hole and the center line of described con-rod only is greater than the distance S2 of the lower end surface of described second axis hole and the center line of described con-rod only.
As a kind of embodiment, arrange a counter sink between the lower end surface of described second axis hole and the lower end surface of described second connecting rod head, the height of described counter sink equals S1-S2.
As a kind of embodiment, the distance S1 of the upper-end surface of described second axis hole and the center line of described con-rod only is less than the distance S2 of the lower end surface of described second axis hole and the center line of described con-rod only.
As a kind of embodiment, arrange a counter sink between the upper-end surface of described second axis hole and the upper-end surface of described second connecting rod head, the height of described counter sink equals S2-S1.
A kind of compressor of the present invention, comprises bent axle, piston, wrist pin and described monolithic linkage;
Described crankshaft installed is in the first axis hole of described monolithic linkage;
In described piston, die cavity is set; The wall of described die cavity arranges through upper pin-and-hole and lower pin-and-hole, and the center line of described upper pin-and-hole overlaps with the center line of described lower pin-and-hole;
The second connecting rod head of described monolithic linkage is arranged in described die cavity;
Described wrist pin is arranged in the second axis hole of described monolithic linkage, and the two ends of described wrist pin are placed in described upper pin-and-hole and described lower pin-and-hole respectively.
As a kind of embodiment, the center line of described upper pin-and-hole and the center line of described lower pin-and-hole are respectively perpendicular to the center line of the con-rod only of described monolithic linkage.
As a kind of embodiment, the center line of the second axis hole of described monolithic linkage overlaps with the center line of described upper pin-and-hole.
As a kind of embodiment, between the gabarit of the second connecting rod head of described monolithic linkage and the wall of described die cavity, be provided with predetermined gap.
Beneficial effect of the present invention is compared with the prior art: monolithic linkage of the present invention and compressor, by the inner asymmetric design of the second axis hole, change the position of the suffered active force in each local of monolithic linkage, reduce friction loss.Reduce the second connecting rod head of monolithic linkage and the friction area of wrist pin; Reduce the quality of the second connecting rod head of monolithic linkage simultaneously, thus reach the object of the past complex inertia mass reducing compressor.
Accompanying drawing explanation
Fig. 1 is the schematic front view of the monolithic linkage of prior art;
Fig. 2 is the schematic front view of monolithic linkage embodiment one of the present invention;
Fig. 3 is the schematic front view of the embodiment one of compressor of the present invention;
Fig. 4 is the stressed schematic diagram of the embodiment one of compressor of the present invention.
Embodiment
In order to solve the excessive problem of frictional loss that radial force causes, propose a kind of monolithic linkage of reducing friction loss and compressor realizes less frictional loss.
Below in conjunction with accompanying drawing, to above-mentioned being described in more detail with other technical characteristics and advantage of the present invention.
Refer to shown in Fig. 2, it is the schematic front view of monolithic linkage embodiment one of the present invention, and a kind of monolithic linkage 200 comprises first connecting rod head 210(connnecting rod big end), second connecting rod head 220(connecting rod small end) with con-rod only 230.Con-rod only 230 is shaft-like, and first connecting rod head 210 and second connecting rod head 220 are separately fixed at the two ends of con-rod only 230.
Line centered by Fig. 2 chain lines, the upper-end surface of first connecting rod head 210 and lower end surface are symmetrical relative to the center line of con-rod only 230, the upper-end surface of second connecting rod head 220 and the center line symmetry of lower end surface relative to con-rod only 230.That is, first connecting rod head 210 is symmetrical relative to the center line of con-rod only with the gabarit of second connecting rod head 220, and the external shape of monolithic linkage 200 is symmetrical.
The monolithic linkage 200 of external shape symmetry, does not need new mold, can use in existing mould and frock manufacturing process and be convenient to control, and is convenient to carry out the different optimization required in production according to demand.Existing connecting rod production technology can be utilized to make, be convenient to improve in actual use; And energy product that is direct and prior art is general, conveniently applies on existing compressor.
First connecting rod head 210 arranges the first axis hole 212(major part axis hole), second connecting rod head 220 is arranged the second axis hole 222(microcephaly axis hole).The upper-end surface of the first axis hole 212 and lower end surface are symmetrical relative to the center line of con-rod only 230, and upper-end surface and the lower end surface of the second axis hole 222 are asymmetric relative to the center line of con-rod only 230.
By the inner asymmetric design of the second axis hole 222, change the position of the suffered active force in each local of monolithic linkage 200, reduce friction loss.
As a kind of embodiment, the center line of the first axis hole 212, the center line of the second axis hole 222 are respectively perpendicular to the center line of con-rod only 230.
As a kind of embodiment, the distance S1 of the upper-end surface of the second axis hole 222 and the center line of con-rod only 230 is greater than the distance S2 of the lower end surface of the second axis hole 222 and the center line of con-rod only 230.
As a kind of embodiment, arrange a counter sink 224 between the lower end surface of the second axis hole 222 and the lower end surface of second connecting rod head 220, the height of counter sink 224 equals S1-S2.
S1 > S2 in the present embodiment, between the lower end surface that counter sink 224 is arranged on the second axis hole 222 and the lower end surface of second connecting rod head 220, it highly equals S1-S2.
As another kind of embodiment, the distance S1 of the upper-end surface of the second axis hole 222 and the center line of con-rod only 230 is less than the distance S2 of the lower end surface of the second axis hole 222 and the center line of con-rod only 230.
As another kind of embodiment, arrange a counter sink 224 between the upper-end surface of the second axis hole 222 and the upper-end surface of second connecting rod head 220, the height of counter sink 224 equals S2-S1.
More preferably, the lower end surface of first connecting rod head 210 is concordant with the lower end surface of second connecting rod head 220, is convenient to processing and metering.
Refer to shown in Fig. 3, it is the schematic front view of the embodiment one of compressor of the present invention, a kind of compressor 300 of the present invention, comprises bent axle 310, piston 320, wrist pin 330 and above-mentioned monolithic linkage 200.
Bent axle 310 is arranged in the first axis hole 212 of monolithic linkage 200.
Arrange die cavity 322 in piston 320, the wall of die cavity 322 arranges through upper pin-and-hole 324 and lower pin-and-hole 326, upper pin-and-hole 324 is communicated to die cavity 322 respectively with lower pin-and-hole 326, and the center line of upper pin-and-hole 324 overlaps with the center line of lower pin-and-hole 326.
Die cavity 322 mainly installs piston 320, so the shape of die cavity 322 should calculate according to the distribution of force of piston 320 and intensity distriubtion.Upper pin-and-hole 324 on piston 320 and the position of lower pin-and-hole 326, the wall thickness of piston 320 is larger.Meeting under the prerequisite by force intensity, the size of die cavity 322 should design larger as far as possible, to reduce the quality of piston, thus reduces toward complex inertia mass.
The second connecting rod head 220 of monolithic linkage 200 is arranged in the die cavity 322 of piston 320.
Wrist pin 330 is arranged in the second axis hole 222 of monolithic linkage 200, and the two ends of wrist pin 330 are placed in pin-and-hole 324 and lower pin-and-hole 326 respectively.Generally, wrist pin 330 is column, has higher intensity, and the efficiency transmitting motion is higher.
Refer to shown in Fig. 4, it is the stressed schematic diagram of the embodiment one of compressor of the present invention, and as a kind of embodiment, the center line of upper pin-and-hole 324 and the center line of lower pin-and-hole 326 are respectively perpendicular to the center line of the con-rod only 210 of monolithic linkage 200.That is, the central axis of wrist pin 330 is in the center line of the con-rod only 210 of monolithic linkage 200.
Orthogonal arrangement avoids in the reciprocating process of piston 320, and the force direction contacted with each other between parts is complicated, produces inordinate wear to local location.
In the process that compressor 300 does work, because bent axle 310 exists plastic deformation, the directed force F that bent axle 310 pairs of monolithic linkage 200 apply
jbe not the centerline direction of the con-rod only 230 along monolithic linkage 200, but there is an angle α with the center line of the con-rod only 230 of monolithic linkage 200, F
jproduce radial decomposing force F
r=F
j× sin α and axial decomposing force F
s=F
j× cos α, radial decomposing force F wherein
rthe first connecting rod head 210 of bent axle 310 and monolithic linkage 200, the radial friction between piston 320 and cylinder can be increased.
Due to the asymmetrical design of the second axis hole 222 of the second connecting rod head 220 of monolithic linkage 200, in the present embodiment, the point of action of the active force that monolithic linkage 200 is subject to moves, F
gpoint of action on move, and the directed force F that the bent axle 310 pairs of monolithic linkage 200 apply
jpoint of action do not change, under the effect of these two power, form a turning torque, turning torque reduces radial decomposing force F
rthe frictional loss produced, thus add the working life of compressor 300, improve product reliability.
As a kind of embodiment, the center line of the second axis hole 222 of monolithic linkage 200 overlaps with the center line of upper pin-and-hole 324.Wrist pin 330 coordinates completely with the second axis hole 222 of monolithic linkage 200 after installing, and coaxial with upper pin-and-hole 324, and such force structure is stablized, and ensures that movement process is reliable.
As another kind of embodiment, between the gabarit of the second connecting rod head 220 of monolithic linkage 200 and the wall of die cavity 322, be provided with predetermined gap.As shown in Figure 3, there is gap L between the upper-end surface of the second connecting rod head 220 of monolithic linkage 200 and the inwall of die cavity 322.
In the indeclinable situation of the size design of piston 320, because the overall sizes of monolithic linkage 200 is constant, string quantity of motion of the prior art can be ensured by gap L; Define dissymmetrical structure to reduce friction loss in the inside of monolithic linkage 200 simultaneously.
Larger distance can be designed between the sidewall of the second connecting rod head 220 of monolithic linkage 200 and the inwall of die cavity 322.
Due to the design of asymmetric second axis hole 222 of the second connecting rod head 220 of monolithic linkage 200, reduce the second connecting rod head 220 of monolithic linkage 200 and the friction area of wrist pin 330; Reduce the quality of the second connecting rod head 220 of monolithic linkage 200 simultaneously, thus reach the object of the past complex inertia mass reducing compressor 300.
The above embodiment only have expressed several mode of execution of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (10)
1. a monolithic linkage, comprises con-rod only, first connecting rod head and second connecting rod head, and con-rod only is shaft-like, and first connecting rod head and second connecting rod head are separately fixed at the two ends of con-rod only, it is characterized in that,
The upper-end surface of described first connecting rod head and lower end surface are symmetrical relative to the center line of described con-rod only,
The upper-end surface of described second connecting rod head and lower end surface are symmetrical relative to the center line of described con-rod only,
Described first connecting rod head arranges the first axis hole, described second connecting rod head arranges the second axis hole;
The upper-end surface of described first axis hole and lower end surface are symmetrical relative to the center line of described con-rod only;
Upper-end surface and the lower end surface of described second axis hole are asymmetric relative to the center line of described con-rod only.
2. monolithic linkage according to claim 1, is characterized in that, the center line of described first axis hole, the center line of described second axis hole are respectively perpendicular to the center line of described con-rod only.
3. monolithic linkage according to claim 1, is characterized in that, the distance S1 of the upper-end surface of described second axis hole and the center line of described con-rod only is greater than the distance S2 of the lower end surface of described second axis hole and the center line of described con-rod only.
4. monolithic linkage according to claim 3, is characterized in that, arrange a counter sink between the lower end surface of described second axis hole and the lower end surface of described second connecting rod head, the height of described counter sink equals S1-S2.
5. monolithic linkage according to claim 1, is characterized in that, the distance S1 of the upper-end surface of described second axis hole and the center line of described con-rod only is less than the distance S2 of the lower end surface of described second axis hole and the center line of described con-rod only.
6. monolithic linkage according to claim 5, is characterized in that, arrange a counter sink between the upper-end surface of described second axis hole and the upper-end surface of described second connecting rod head, the height of described counter sink equals S2-S1.
7. a compressor, comprises bent axle, piston and wrist pin, it is characterized in that, also comprises the monolithic linkage described in any one of claim 1 to 6;
Described crankshaft installed is in the first axis hole of described monolithic linkage;
In described piston, die cavity is set; The wall of described die cavity arranges through upper pin-and-hole and lower pin-and-hole, and the center line of described upper pin-and-hole overlaps with the center line of described lower pin-and-hole;
The second connecting rod head of described monolithic linkage is arranged in described die cavity;
Described wrist pin is arranged in the second axis hole of described monolithic linkage, and the two ends of described wrist pin are placed in described upper pin-and-hole and described lower pin-and-hole respectively.
8. compressor according to claim 7, is characterized in that, the center line of described upper pin-and-hole and the center line of described lower pin-and-hole are respectively perpendicular to the center line of the con-rod only of described monolithic linkage.
9. compressor according to claim 7, is characterized in that, the center line of the second axis hole of described monolithic linkage overlaps with the center line of described upper pin-and-hole.
10. compressor according to claim 7, is characterized in that, is provided with predetermined gap between the gabarit of the second connecting rod head of described monolithic linkage and the wall of described die cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310729523.5A CN104747415B (en) | 2013-12-25 | 2013-12-25 | Monolithic linkage and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310729523.5A CN104747415B (en) | 2013-12-25 | 2013-12-25 | Monolithic linkage and compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104747415A true CN104747415A (en) | 2015-07-01 |
| CN104747415B CN104747415B (en) | 2018-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310729523.5A Active CN104747415B (en) | 2013-12-25 | 2013-12-25 | Monolithic linkage and compressor |
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| CN (1) | CN104747415B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5612080A (en) * | 1979-07-09 | 1981-02-05 | Hitachi Ltd | Full-enclose type motor-driven compressor |
| CN201148959Y (en) * | 2007-12-27 | 2008-11-12 | 杭州钱江制冷集团有限公司 | Compressor connection lever |
| CN201953607U (en) * | 2011-02-24 | 2011-08-31 | 黄石东贝电器股份有限公司 | Asymmetric connecting rod applied to refrigeration compressor |
| CN202732278U (en) * | 2012-07-25 | 2013-02-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Connecting rod component of piston compressor and piston compressor |
| CN202768326U (en) * | 2012-07-12 | 2013-03-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Compression assembly and compressor comprising the same |
| CN202900571U (en) * | 2012-10-22 | 2013-04-24 | 杭州钱江压缩机有限公司 | Connecting rod structure of compressor |
| CN203670155U (en) * | 2013-12-25 | 2014-06-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Integrated connecting rod and compressor |
-
2013
- 2013-12-25 CN CN201310729523.5A patent/CN104747415B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5612080A (en) * | 1979-07-09 | 1981-02-05 | Hitachi Ltd | Full-enclose type motor-driven compressor |
| CN201148959Y (en) * | 2007-12-27 | 2008-11-12 | 杭州钱江制冷集团有限公司 | Compressor connection lever |
| CN201953607U (en) * | 2011-02-24 | 2011-08-31 | 黄石东贝电器股份有限公司 | Asymmetric connecting rod applied to refrigeration compressor |
| CN202768326U (en) * | 2012-07-12 | 2013-03-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Compression assembly and compressor comprising the same |
| CN202732278U (en) * | 2012-07-25 | 2013-02-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Connecting rod component of piston compressor and piston compressor |
| CN202900571U (en) * | 2012-10-22 | 2013-04-24 | 杭州钱江压缩机有限公司 | Connecting rod structure of compressor |
| CN203670155U (en) * | 2013-12-25 | 2014-06-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Integrated connecting rod and compressor |
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| Publication number | Publication date |
|---|---|
| CN104747415B (en) | 2018-08-10 |
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Effective date of registration: 20181119 Address after: 519070 golden hill road, Qianshan, Zhuhai, Guangdong Co-patentee after: GREE GREEN REFRIGERATION TECHNOLOGY CENTER Co.,Ltd. OF ZHUHAI Patentee after: GREE ELECTRIC APPLIANCES,Inc.OF ZHUHAI Address before: 519070 science and technology building, 789 Jinji Road, Qianshan, Zhuhai, Guangdong Patentee before: GREE GREEN REFRIGERATION TECHNOLOGY CENTER Co.,Ltd. OF ZHUHAI |