CN203477046U - Eccentric type connecting rod - Google Patents
Eccentric type connecting rod Download PDFInfo
- Publication number
- CN203477046U CN203477046U CN201320634529.XU CN201320634529U CN203477046U CN 203477046 U CN203477046 U CN 203477046U CN 201320634529 U CN201320634529 U CN 201320634529U CN 203477046 U CN203477046 U CN 203477046U
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- head
- circle
- connecting rod
- ring head
- small
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- 239000000654 additive Substances 0.000 claims description 16
- 230000000996 additive effect Effects 0.000 claims description 16
- 230000000750 progressive effect Effects 0.000 claims description 16
- 238000005057 refrigeration Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
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Abstract
The utility model relates to a part of a piston reciprocating type refrigeration compressor, in particular to an eccentric type connecting rod. The eccentric type connecting rod comprises a large circular ring head, a small circular ring head and a connecting rod body connecting the large circular ring head and the small circular ring head. The eccentric type connecting rod is characterized in that the outer contour circle centers of the large circular ring head and the small circular ring head are arranged inwards relative the respective inner contour circle centers, the structure that the thickness of the circular ring wall of the large circular ring head gradually increases from the outer end top point to two sides is formed, and the structure that the thickness of the circular ring wall of the small circular ring head gradually increases from the outer end top point to two sides is formed. The eccentric type connecting rod adopts an eccentric structure, can reduce the total length and the weight on the premise of guaranteeing that the center distance of the connecting rod is not changed and work intensity is sufficient, and therefore movement power consumption of the connecting rod in a compressor is reduced. The sealing area of an air cylinder is increased, the leakage value is reduced, the performance of the compressor is improved, and the eccentric type connecting rod is mainly applied to the piston reciprocating type refrigeration compressor.
Description
Technical field
The utility model relates to component of machine, specifically for a kind of eccentric link of piston reciprocating type refrigeration compressor.
Background technique
Piston reciprocating type refrigeration compressor mainly by: several parts such as cylinder block, bent axle, connecting rod, piston, cylinder head part, motor, housing form, his Core Feature is: the to-and-fro motion by piston comes refrigerant gas to suck cylinder recompression discharge, completes by low pressure refrigerant gas and is converted into this process of higher pressure refrigerant gas.This is one is the process that kinetic energy transforms potential energy again by electric energy conversion, and connecting rod plays an important role in this course.
Existing connecting rod is to consist of large circle head, small circle ring head and the connecting rod shank that connects large small circle ring head, and the center of circle of the inside and outside profile in large small circle ring head overlaps, therefore, the thick major part of ring wall of large small circle ring head is all thick (thicker by connecting rod shank one side).Crank throw that connects bent axle of connecting rod, one connects piston, promotes piston and move reciprocatingly under the rotation of bent axle, has completed one and has rotated the cyclic process that becomes mobile.In the system running up, the own wt of connecting rod, piston will have influence on the loss of energy, for reducing this loss, meets the large difficult point that its reliability becomes product specification when reducing connecting rod weight.
Summary of the invention
The purpose of this utility model is exactly will the bar linkage structure in piston reciprocating type refrigeration compressor be optimized, the weight saving that provides a kind of offset connecting rod to make connecting rod, thus reduce its power consumption.
Design philosophy of the present utility model is: for the connecting rod in piston reciprocating type refrigeration compressor, carry out structure optimization, research shows: in connecting rod work, suffered pressure maximum is approximately 10 times of maximum pull, be connecting rod required by tension strength much smaller, and connecting rod pulling force force bearing point is two outer ends that are positioned at the large small circle ring head of connecting rod, according to this result of study, two outer end wall thickness of the large small circle ring head of connecting rod are carried out to attenuate, to alleviate connecting rod weight, reducing its motion power consumption, is feasible.
Concrete scheme of the present utility model is: the connecting rod for pot type piston reciprocal compressor improves, and proposes following three kinds of similar schemes:
Scheme one: a kind of eccentric link, by large circle head, small circle ring head and the connecting rod shank that connects large small circle ring head, formed, it is characterized in that: setover to the inside in the interior profile center of circle relatively separately, the external frame center of circle in large and small annulus head, the annulus wall thickness forming in large circle head starts to the structure of both sides progressive additive from outer endvertex, and the annulus wall thickness in small circle ring head starts to the structure of both sides progressive additive from outer endvertex equally.
Scheme two: a kind of eccentric link, by large circle head, small circle ring head and the external frame body that connects large and small annulus head, formed, it is characterized in that: the external frame in large and small annulus head is all to consist of two sections of circular arcs, wherein the radius of arc of a section in the outer part in large circle head is greater than the radius of arc of one section of inner side, and setover to the inside in the center of circle of orthodrome, the annulus wall thickness forming in large circle head starts to the structure of both sides progressive additive from outer endvertex; The radius of arc of one section in the outer part in small circle ring head is greater than the inner side radius of arc of a section, and the center of circle of orthodrome setovers to the inside, forms the circular arc wall thickness in small circle ring head, starts to the structure of both sides progressive additive equally from outer endvertex.
Scheme three: a kind of eccentric link, by large circle head, small circle ring head and connection are large, the connecting rod shank of small circle ring head forms, it is characterized in that: setover to the inside in the external frame center of circle in large circle head or small circle ring head relatively its interior profile center of circle, forming its annulus wall thickness starts to the structure of both sides progressive additive from outer endvertex, corresponding small circle ring head or the circle of the external frame in large circle head are to consist of inside and outside two sections of circular arcs, wherein the radius of arc of a section is greater than the inner side radius of arc of a section in the outer part, and setover to the inside in the center of circle of orthodrome, and form its annulus wall thickness and start to the structure of both sides progressive additive from outer endvertex.
Above-mentioned three kinds of conceptual design principles communicate substantially, applying three kinds of schemes of the present utility model can be in the interior circular hole centre distance constant (to keep its installation dimension constant) that keeps the large small circle ring head of connecting rod, and guarantee its tensile strength, meet under the performance of its working strength requirement, by attenuate ring wall thickness, alleviate connecting rod weight, thereby reduced the power consumption of connecting rod in compressor.Meanwhile, the total length of connecting rod can shorten, and can reduce the degree of depth of connecting rod installation position R groove in cylinder block, thereby increases the sealing of cylinder, or in equal sealing situation, increases the maximum eccentricity amount of bent axle.
The utility model design is ingenious, simple in structure, the weight saving of connecting rod, and total length shortens, and is installed in compressor, can reduce power consumption, reduces compressor power consumption.
Accompanying drawing explanation
Fig. 1 is the three-dimensional plan view of the utility model structure one;
Fig. 2 is the plan view of the utility model structure one;
Fig. 3 is the plan view of the utility model structure two.
In figure: 1-large circle head, 2-small circle ring head, 3-connecting rod shank, the outer endvertex of 4-small circle ring head, the outer endvertex of 5-large circle head, 6-small circle ring head inner arc, 7-small circle ring head outer arc, 8-large circle head inner arc, 9-large circle head outer arc.
Embodiment
Example 1: referring to Fig. 3, the utility model structure two, to be formed by large circle head 1, small circle ring head 2 and the external frame body that connects large and small annulus head, particularly: the external frame in large and small annulus head is all to consist of two sections of circular arcs, wherein circular arc 9 radiuses of a section in the outer part in large circle head are greater than circular arc 8 radiuses of one section of inner side, and setover to the inside in the center of circle of orthodrome, the annulus wall thickness forming in large circle head starts to the structure of both sides progressive additive from outer endvertex 5; Circular arc 7 radiuses of one section in the outer part in small circle ring head are greater than inner side circular arc 6 radiuses of a section, and the center of circle of orthodrome setovers to the inside, form the circular arc wall thickness in small circle ring head, start to the structure of both sides progressive additive equally from outer endvertex 4.The thick relative design of ring wall at the place, large and small annulus head outer end in the present embodiment can attenuate 0.4mm.
Example 2: referring to Fig. 1,2, the utility model structure one, to be formed by large circle head 1, small circle ring head 2 and the connecting rod shank 3 that connects large small circle ring head, particularly: setover (eccentric distance e=0.2mm) to the inside in the interior profile center of circle relatively separately, the external frame center of circle in large and small annulus head, the annulus wall thickness forming in large circle head starts to the structure of both sides progressive additive from outer endvertex 5, and the annulus wall thickness in small circle ring head starts to the structure of both sides progressive additive from outer endvertex 4 equally.The thick relatively former design attenuate of ring wall at the large and small annulus head outer end in the present embodiment place 0.2mm.
The utility model can also mix example 1,2 two kinds of structural types of example to take, and as the small circle ring head of connecting rod is pressed to example 1 structural design, large circle head is by example 2 structural designs; Or the small circle ring head of connecting rod is pressed to example 2 structural designs, and large circle head is by example 1 structural design.
Claims (3)
1. eccentric link, by large circle head, small circle ring head and the connecting rod shank that connects large small circle ring head, formed, it is characterized in that: setover to the inside in the interior profile center of circle relatively separately, the external frame center of circle in large and small annulus head, the annulus wall thickness forming in large circle head starts to the structure of both sides progressive additive from outer endvertex, and the annulus wall thickness in small circle ring head starts to the structure of both sides progressive additive from outer endvertex equally.
2. eccentric link, by large circle head, small circle ring head and the external frame body that connects large and small annulus head, formed, it is characterized in that: the external frame in large and small annulus head is all to consist of two sections of circular arcs, wherein the radius of arc of a section in the outer part in large circle head is greater than the radius of arc of one section of inner side, and setover to the inside in the center of circle of orthodrome, the annulus wall thickness forming in large circle head starts to the structure of both sides progressive additive from outer endvertex; The radius of arc of one section in the outer part in small circle ring head is greater than the inner side radius of arc of a section, and the center of circle of orthodrome setovers to the inside, forms the circular arc wall thickness in small circle ring head, starts to the structure of both sides progressive additive equally from outer endvertex.
3. eccentric link, by large circle head, small circle ring head and connection are large, the connecting rod shank of small circle ring head forms, it is characterized in that: setover to the inside in the external frame center of circle in large circle head or small circle ring head relatively its interior profile center of circle, forming its annulus wall thickness starts to the structure of both sides progressive additive from outer endvertex, corresponding small circle ring head or the circle of the external frame in large circle head are to consist of inside and outside two sections of circular arcs, wherein the radius of arc of a section is greater than the inner side radius of arc of a section in the outer part, and setover to the inside in the center of circle of orthodrome, and form its annulus wall thickness and start to the structure of both sides progressive additive from outer endvertex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320634529.XU CN203477046U (en) | 2013-10-15 | 2013-10-15 | Eccentric type connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320634529.XU CN203477046U (en) | 2013-10-15 | 2013-10-15 | Eccentric type connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477046U true CN203477046U (en) | 2014-03-12 |
Family
ID=50225380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320634529.XU Expired - Lifetime CN203477046U (en) | 2013-10-15 | 2013-10-15 | Eccentric type connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477046U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141600A (en) * | 2014-07-01 | 2014-11-12 | 安徽美芝制冷设备有限公司 | Compressor connecting rod and production method thereof |
| CN107939819A (en) * | 2017-11-06 | 2018-04-20 | 三海洋重工有限公司 | Drag link mechanism and crane |
-
2013
- 2013-10-15 CN CN201320634529.XU patent/CN203477046U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141600A (en) * | 2014-07-01 | 2014-11-12 | 安徽美芝制冷设备有限公司 | Compressor connecting rod and production method thereof |
| CN107939819A (en) * | 2017-11-06 | 2018-04-20 | 三海洋重工有限公司 | Drag link mechanism and crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210615 Address after: No.6, East Jinshan Avenue, Huangshi economic and Technological Development Zone, Huangshi City, Hubei Province Patentee after: Huangshi Dongbei Compressor Co.,Ltd. Address before: 435006 No.6, east of Huangjinshan Avenue, Huangshi economic and Technological Development Zone, Hubei Province Patentee before: Huangshi Dongbei Electrical Appliance Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |
|
| CX01 | Expiry of patent term |