CN102720657A - Split connecting rod for refrigeration compressor - Google Patents
Split connecting rod for refrigeration compressor Download PDFInfo
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- CN102720657A CN102720657A CN2012102073525A CN201210207352A CN102720657A CN 102720657 A CN102720657 A CN 102720657A CN 2012102073525 A CN2012102073525 A CN 2012102073525A CN 201210207352 A CN201210207352 A CN 201210207352A CN 102720657 A CN102720657 A CN 102720657A
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- connecting rod
- pin
- shaped socket
- hole
- plug
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Abstract
The invention provides a split connecting rod for a refrigeration compressor. The split linkage for the refrigeration compressor comprises a large circular post and a connecting rod. A U-shaped socket part is integrated to the outer side of the large circular post and is provided with pin column through holes and a pin through hole perpendicularly communicated with the cylinder through holes. Two ends of the connecting rod are provided with a small circular post and a plug respectively. The plug is provided with a transverse through hole and is disposed in the U-shaped socket part. A connecting pin column penetrates through the pin column through holes of the U-shaped socket part and the transverse through hole of the plug to connect the large circular post with the connecting rod, and the connecting rod pin column is connected with the transverse through hole by means of loose fit. A pin hole is reserved around one end of the connecting rod pin column, an elastic positioning pin sequentially penetrates through the pin through hole of the U-shaped socket part and the pin hole of the connecting rod pin column to position the connecting rod pin column on the U-shaped socket part, and the elastic positioning pin is connected with the pin hole by means of interference fit. The split connecting rod can be mounted in the refrigeration compressor to optimize linkage of a piston, a connecting rod and a crankshaft, and has the advantages that frictional wear of moving parts is reduced, energy efficiency of the compressor is improved, and service life of the compressor is prolonged.
Description
Technical field
The present invention relates to refrigeration compressor, particularly connect the connecting rod of bent axle and piston in the reciprocating type refrigeration compressor.
Background technique
Existing a kind of reciprocating type refrigeration compressor is described in 201010192250.1 the Chinese patent like application number, and it mainly includes housing and places the cylinder seat with cylinder in the housing, places piston, split type connecting rod, bent axle, main shaft and motor in the cylinder; Wherein, split type connecting rod includes big circular column and connecting rod, has the huge pillar hole in the big circular column and the outside is provided with a plug; One end of connecting rod is provided with little circular column, and the other end of connecting rod is provided with the U-shaped faucet section, has the pillar hole in the little circular column; In the socket of the U-shaped faucet section of the plug insertion connecting rod on the big circular column; The upper and lower side of plug of big circular column respectively has a plug half-moon groove, and the upper and lower side of the U-shaped faucet section of connecting rod also is respectively equipped with the connecting rod half-moon groove, and plug half-moon groove and connecting rod half-moon groove connect; Passing the plug half-moon groove with the suitable U type elastic circlip of plug half-moon groove and connecting rod half-moon groove is fixedly connected big circular column with the connecting rod half-moon groove with connecting rod; Suitable and the mutual butt of outer side surface of the U-shaped faucet section end face of connecting rod and big circular column, bent axle penetrate the huge pillar hole that connects major part and are connected with connecting rod, and the connection microcephaly is inserted in the inner chamber of cylinder-piston and the piston pin is passed the pillar hole that connects the microcephaly and with piston connecting rod is connected with piston; During use; Earlier the piston pin is passed pin hole and the pillar hole of little circular column on the piston, connecting rod is connected with piston, after piston is put into cylinder; Again big circular column is connected with bent axle through the huge pillar hole; Afterwards the plug on the big circular column is inserted in the U-shaped socket that connects rod end, at last U type elastic circlip is inserted in plug half-moon groove and the connecting rod half-moon groove, big circular column is fixedly connected with connecting rod; Crankshaft and piston connects through split type connecting rod the most at last; Like this, the Driving force of bent axle is passed to piston by split type connecting rod, makes piston reciprocating in cylinder.This split type connecting rod is convenient to install, and can reduce the processing cost and the machining accuracy of compressor, and its deficiency is: because inevitable machining accuracy error; The interlock of movable parts such as piston, connecting rod and bent axle is unstable unavoidably; Even the slight change of movement locus also can cause the wearing and tearing of moving element, influence the working life of compressor, therefore; For optimizing the interlock effect of piston, connecting rod and bent axle, be necessary split type connecting rod is improved.
Summary of the invention
The objective of the invention is to propose a kind of split type connecting rod that is used for refrigeration compressor; It is installed on the interlock that can optimize piston, connecting rod and bent axle in the refrigeration compressor, reduces the moving element fretting wear to reach, improves the compressor capacity usage ratio, prolongs the compressor effect in working life.
The object of the invention can be realized through following technological scheme:
The split type connecting rod that is used for refrigeration compressor; It includes big circular column and connecting rod; Have the huge pillar hole in the big circular column, the outside disjunctor of big circular column is provided with U-shaped socket portion, have in the U-shaped socket portion pin perforation with the vertical pin hole that communicates of pin perforation;
One end of connecting rod has little circular column, has the pillar hole in the little circular column, and the other end of connecting rod has plug, has the suitable cross-perforating of pin perforation of diameter and U-shaped socket portion on the plug;
The plug of connecting rod places in the U-shaped socket portion, and a connecting rod pin passes the pin perforation of U-shaped socket portion and with cross-perforating on the connecting rod big circular column is connected with connecting rod, and the connecting rod pin is that loose fit is connected with cross-perforating on the connecting rod;
The connecting rod pin has the pin jack near one end; One elastic positioning pin penetrates the pin hole of U-shaped socket portion successively and the pin jack of connecting rod pin is positioned the connecting rod pin in the U-shaped socket portion, and elastic positioning pin is that interference fit is connected with the pin hole of U-shaped socket portion.
Optimized project, the end face of said connecting rod plug end are the circular arc end face.
Install when of the present invention; Earlier pass pillar hole on pin hole and the connecting rod on the piston, connecting rod be connected with piston with the piston pin, after piston is put into cylinder; Again big circular column is connected with bent axle through its huge pillar hole; Plug with connecting rod inserts in the U-shaped socket portion of big circular column afterwards, then the connecting rod pin is passed the bearing pin perforation of U-shaped socket portion and the cross-perforating of plug, and big circular column is connected with connecting rod; At last, elastic positioning pin is penetrated the pin hole of big circular column U-shaped socket portion successively and the pin jack of connecting rod pin makes connecting rod pin location.
The present invention has following outstanding substantive distinguishing features and obvious improvement:
After the present invention is installed in the refrigeration compressor; Connecting rod just is equivalent to a cross universal joint with the U-shaped socket portion in the big circular column outside; In the linkage process; In case during connecting rod in the vertical direction stressed unstable, connecting rod is spent swing by its plug end around connecting rod pin in the vertical direction a little, to alleviate the situation of vertical unbalance stress; Moreover; In case during in the horizontal direction stressed unstable of connecting rod, connecting rod by its little circular column around the degree swing a little in the horizontal direction of piston pin, to alleviate the situation of horizontal unbalance stress; Like this; The oneself of connecting rod finely tunes effective movable part unbalance stress, understable situation of moving of having alleviated connecting rod and two ends connection thereof, and makes the fretting wear of movable part and motion noise reduce the working life of improved the compressor capacity usage ratio, having improved compressor.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is an assembling schematic representation of the present invention.
Fig. 3 is applied to the structural representation of refrigeration compressor for the present invention.
Among the figure: 1-big circular column, 10-huge pillar hole, 11-socket portion, the perforation of 110-socket, 111-pin shaft hole, 2-connecting rod pin; 20-bearing pin jack, 21-elastic positioning pin, 3-connecting rod, 31-little circular column, 310-pillar hole, 32-plug; The perforation of 320-plug, 321-plug end end face, 43-piston pin, 5-piston, 6-bent axle; 61-main shaft, 7-housing, 8-motor, 9-cylinder seat, 90-cylinder.
Embodiment
Below in conjunction with accompanying drawing the present invention is described further.
Embodiment
With reference to figure 1 and Fig. 2; A kind of split type connecting rod that is used for refrigeration compressor; It includes big circular column 1 and connecting rod 3; Have huge pillar hole 10 in the big circular column 1, the outside disjunctor of big circular column 1 is provided with U-shaped socket portion 11, have in the U-shaped socket portion 11 pin perforation 110 with the pin perforation 110 vertical pin holes that communicate 111;
One end of connecting rod 3 has little circular column 31; Has pillar hole 310 in the little circular column 31; The other end of connecting rod 3 has plug 32; The pin that has diameter and U-shaped socket portion 11 on the plug 32 110 suitable cross-perforatings 320 of boring a hole, the end face 321 of plug 32 ends of connecting rod 3 is the circular arc end face;
The plug 32 of connecting rod 3 places in the U-shaped socket portion 11 of big circular column 1; The pin perforation 110 that one connecting rod pin 2 passes U-shaped socket portion 11 is connected big circular column 1 with the cross-perforating 320 of connecting rod 3 with connecting rod 3, connecting rod pin 2 is connected for loose fit with the cross-perforating 320 of connecting rod 3;
Has pin jack 20 near connecting rod pin 2 one ends; One elastic positioning pin 21 penetrates the pin hole 111 of U-shaped socket portion 11 successively and the pin jack 20 of connecting rod pin 2 is positioned connecting rod pin 2 in the U-shaped socket portion 11, and elastic positioning pin 21 is connected for interference fit with the pin hole 111 of U-shaped socket portion 11.
In conjunction with reference to figure 3; With present embodiment be applied to refrigeration compressor the time, earlier pass pin hole and the pillar hole 310 on the connecting rod 3 on the piston 5 with piston pin 43, connecting rod 3 is connected with piston 5; After piston 5 is put into cylinder 90; Again big circular column 1 is connected with bent axle 6 through its huge pillar hole 10, the plug 32 with connecting rod 3 inserts in the U-shaped mouth of U-shaped socket portion 11 on the big circular column 1 afterwards, then connecting rod pin 2 is passed the bearing pin perforation 110 of U-shaped socket portion 11 and the cross-perforating 320 of plug 32; Big circular column 1 is connected with connecting rod 3; The end face 321 of the plug end of connecting rod 3 does not contact with the outer side surface of big circular column 1, and is last, and elastic positioning pin 21 is penetrated the pin hole 111 of U-shaped socket portion 11 and the pin jack 20 of connecting rod pin 2 makes connecting rod pin 2 location successively.
During refrigeration compressor work; Piston 5, split type connecting rod, bent axle 6 threes constitute a linked system; This linked system is when running; In case in the vertical direction occurs stressed when unstable, the connecting rod 3 in the linked system can be spent swing around connecting rod pin 2 in the vertical directions a little by its plug 32 ends, to eliminate the situation of the vertical unbalance stress of each parts in the linked system; Moreover; In case during in the horizontal direction stressed unstable; Connecting rod 3 can be around piston pin 43 degree swing a little in the horizontal direction, to eliminate the situation of the horizontal unbalance stress of each parts in the linked system, so by its little circular column 31; Connecting rod 3 is equivalent to a cross universal joint in said linked system; Finely tune effective each movable part unbalance stress, understable situation of moving alleviated through the oneself on vertical direction or substantially horizontal, make the fretting wear and the motion noise of the movable part of connecting rod and connection thereof reduce the working life of improve the compressor capacity usage ratio, having improved compressor.
Claims (2)
1. the split type connecting rod that is used for refrigeration compressor; It includes big circular column (1) and connecting rod (3), has huge pillar hole (10) in the big circular column (1), and an end of connecting rod (3) has little circular column (31); Have pillar hole (310) in the little circular column (31), it is characterized in that:
The outside disjunctor of big circular column (1) is provided with U-shaped socket portion (11), have in the U-shaped socket portion (11) pin perforation (110) with pin perforation (110) the vertical pin holes that communicate (111);
The other end of connecting rod (3) has plug (32), has pin perforation (110) suitable plug cross-perforating (320) of diameter and U-shaped socket portion (11) on the plug (32);
The plug (32) of connecting rod (3) places in the U-shaped socket portion (11); One connecting rod pin (2) passes the pin perforation (110) of U-shaped socket portion (11) and the plug cross-perforating (320) of connecting rod (3) is connected big circular column (1) with connecting rod (3), and connecting rod pin (2) is connected for loose fit with cross-perforating (320) on the connecting rod (3);
The connecting rod pin has pin jack (20) near (2) one ends; One elastic positioning pin (21) penetrates the pin hole (111) of U-shaped socket portion (11) successively and the pin jack (20) of connecting rod pin (2) is positioned connecting rod pin (2) in the U-shaped socket portion (11), and elastic positioning pin (21) is connected for interference fit with the pin hole (111) of U-shaped socket portion (11).
2. the split type connecting rod that is used for refrigeration compressor according to claim 1 is characterized in that: the end face (321) of connecting rod (3) plug (32) end is the circular arc end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102073525A CN102720657A (en) | 2012-06-21 | 2012-06-21 | Split connecting rod for refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102073525A CN102720657A (en) | 2012-06-21 | 2012-06-21 | Split connecting rod for refrigeration compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102720657A true CN102720657A (en) | 2012-10-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102073525A Pending CN102720657A (en) | 2012-06-21 | 2012-06-21 | Split connecting rod for refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102720657A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3111947A1 (en) * | 1981-03-26 | 1982-10-28 | Danfoss A/S, 6430 Nordborg | Reciprocating compressor, in particular for enclosed small refrigerating machines |
| DE3842766A1 (en) * | 1987-12-17 | 1989-06-29 | Brasil Compressores Sa | PISTON COMPRESSOR FOR SMALL REFRIGERATORS |
| WO1995011382A1 (en) * | 1993-10-19 | 1995-04-27 | Empresa Brasileira De Compressores S/A.-Embraco | A two-piece connecting rod for a reciprocating hermetic compressor |
| DE4418113A1 (en) * | 1994-05-24 | 1995-12-07 | Danfoss Compressors Gmbh | Connecting rod for piston compressor |
| JP2002243038A (en) * | 2001-02-16 | 2002-08-28 | Matsushita Refrig Co Ltd | Connecting device of piston and connecting rod of compressor |
| JP2004300933A (en) * | 2003-03-28 | 2004-10-28 | Sanyo Electric Co Ltd | Reciprocating piston compressor |
| KR20050119478A (en) * | 2004-06-16 | 2005-12-21 | 주식회사 대우일렉트로닉스 | A structure for connecting a piston and a shaft of hermetic compressors for refrigerators |
| DE102006028617B3 (en) * | 2006-06-22 | 2008-02-21 | Danfoss Compressors Gmbh | Piston compressor e.g. refrigerant compressor, has connecting rod that is connected with crank eye via hinge arrangement that has connection geometrics, where one geometry is inserted into wall of receiving area of other connection geometry |
| CN201433889Y (en) * | 2008-12-22 | 2010-03-31 | 加西贝拉压缩机有限公司 | Split connecting rod applied to refrigeration compressor |
| CN202756202U (en) * | 2012-06-21 | 2013-02-27 | 广州万宝集团压缩机有限公司 | Split type connecting rod for refrigeration compressor |
-
2012
- 2012-06-21 CN CN2012102073525A patent/CN102720657A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3111947A1 (en) * | 1981-03-26 | 1982-10-28 | Danfoss A/S, 6430 Nordborg | Reciprocating compressor, in particular for enclosed small refrigerating machines |
| DE3842766A1 (en) * | 1987-12-17 | 1989-06-29 | Brasil Compressores Sa | PISTON COMPRESSOR FOR SMALL REFRIGERATORS |
| WO1995011382A1 (en) * | 1993-10-19 | 1995-04-27 | Empresa Brasileira De Compressores S/A.-Embraco | A two-piece connecting rod for a reciprocating hermetic compressor |
| DE4418113A1 (en) * | 1994-05-24 | 1995-12-07 | Danfoss Compressors Gmbh | Connecting rod for piston compressor |
| JP2002243038A (en) * | 2001-02-16 | 2002-08-28 | Matsushita Refrig Co Ltd | Connecting device of piston and connecting rod of compressor |
| JP2004300933A (en) * | 2003-03-28 | 2004-10-28 | Sanyo Electric Co Ltd | Reciprocating piston compressor |
| KR20050119478A (en) * | 2004-06-16 | 2005-12-21 | 주식회사 대우일렉트로닉스 | A structure for connecting a piston and a shaft of hermetic compressors for refrigerators |
| DE102006028617B3 (en) * | 2006-06-22 | 2008-02-21 | Danfoss Compressors Gmbh | Piston compressor e.g. refrigerant compressor, has connecting rod that is connected with crank eye via hinge arrangement that has connection geometrics, where one geometry is inserted into wall of receiving area of other connection geometry |
| CN201433889Y (en) * | 2008-12-22 | 2010-03-31 | 加西贝拉压缩机有限公司 | Split connecting rod applied to refrigeration compressor |
| CN202756202U (en) * | 2012-06-21 | 2013-02-27 | 广州万宝集团压缩机有限公司 | Split type connecting rod for refrigeration compressor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121010 |