CN201531392U - Connection structure of piston and connection rod of sealed compressor - Google Patents
Connection structure of piston and connection rod of sealed compressor Download PDFInfo
- Publication number
- CN201531392U CN201531392U CN2009200770330U CN200920077033U CN201531392U CN 201531392 U CN201531392 U CN 201531392U CN 2009200770330 U CN2009200770330 U CN 2009200770330U CN 200920077033 U CN200920077033 U CN 200920077033U CN 201531392 U CN201531392 U CN 201531392U
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- China
- Prior art keywords
- piston
- bulb
- base plate
- connecting rod
- blind hole
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Abstract
The utility model discloses a connection structure of a piston and a connection rod of a sealed compressor, which comprises the connection rod, the barrel-shaped piston and a bulb. An opening ball seat is connected to the end portion of the connection rod; the bulb can be rotatably riveted inside the ball seat of the connection rod; and the bulb with the connection rod is fixed onto an inner cavity bottom plate of the piston to enable the center of the bulb to be positioned on an axis of the piston. Ball bearings are formed inside an inner cavity of the piston and at the end portion of the connection rod, but assembly process of the ball bearings is changed, namely, the bulb is fixed onto a mounting bottom plate outside the piston and riveted with the ball seat at the end portion of the connection rod, and the mounting bottom plate with the bulb and the connection rod is fixed inside the inner cavity of the piston, thereby the connection structure greatly reduces design and manufacturing difficulties of a rivet fixture between the bulb and the ball seat, and not only can greatly lower manufacturing cost, but also obtain comparatively high assembly accuracy from comparatively low fixture manufacturing cost.
Description
Technical field
The utility model relates to a kind of linkage structure of piston and connecting rod of hermetic type compressor.
Background technique
Common closed reciprocating compressor (seeing accompanying drawing 1) comprises a seal container 5, motor 6, a compressing mechanism 7, a frame 8, a bent axle 9 and a connecting rod 4, wherein, a motor 6 and a compressing mechanism 7 are arranged on seal container 5 inside, and motor 6 comprises stator and rotor; Compressing mechanism 7 comprises cylinder 70 and piston 2, and piston 2 can be free to slide along cylinder inner wall; Frame 8 supports motor 6 and compressing mechanism 7 in seal container 5; The rotating force of bent axle 9 conduct electricity motivations 6, its bottom is fixed on the central authorities of motor 6 rotors, and top has eccentric part 90, and it rotates with rotor and the eccentric part 90 on its top is supported on the frame 8; The two ends of connecting rod 4 are pivotally connected and flexibly connect with piston 2 with the eccentric part 90 of bent axle 9 respectively; Piston 2 converts rotatablely moving of bent axle 9 to respect to cylinder 70 linear reciprocating motion by connecting rod 4.
The linkage structure of the piston of hermetic type compressor and connecting rod in the prior art (seeing accompanying drawing 2) is: the inner chamber at piston 2 is provided with a ball seat 22, the fixedly connected bulb 3 in the end of connecting rod 4, this bulb 3 is to be riveted on rotationally in the ball seat 22 of piston 2 by bulb 3 with the Placement of piston 2, makes and forms a ball bearing between bulb 3 and the ball seat 22.Because ball seat 22 is made into integration with piston 2, the size restrictions of ball seat 22 makes the gap of 2 in itself and piston less, therefore rivet comparatively difficulty of jig Design, because not only will consider grip size can not interfere with piston 2, ball seat 22 when realizing riveted joint, to consider that also the intensity of riveting makes ball seat 22 can embrace bulb 3 tightly after riveted joint, make bulb 3 that axial float and circumferential becoming flexible not take place in movement process, so selecting for use with the requirement of design accuracy of anchor clamps material is all very high.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of linkage structure of piston and connecting rod of hermetic type compressor to be provided, and not only size restrictions is little for it, is convenient to realize, the riveted joint anchor clamps are designed easily.
A kind of technological scheme that realizes above-mentioned purpose is: a kind of piston of hermetic type compressor and the linkage structure of connecting rod, comprise connecting rod and bucket piston, and also comprise a bulb,
The end of described connecting rod connects the ball seat of an opening;
Described bulb is riveted in the ball seat of described connecting rod rotationally;
The described bulb that has connecting rod is fixed on the inner chamber base plate of piston, makes on the axis that is centered close to piston of bulb.
The piston of above-mentioned hermetic type compressor and the linkage structure of connecting rod, wherein,
The inner chamber diapire central authorities of described piston are axially arranged with a blind cylindrical hole or tapped blind hole;
One end of described bulb extends a cylindrical locating stud or a threaded pin, the blind hole diameter coupling of described cylindrical locating stud and described piston, the tapped blind hole coupling of described threaded pin and described piston, the other end of this bulb is riveted in the ball seat of described connecting rod rotationally;
Described locating stud interference fit ground inserts in the blind hole of described piston, the described bulb that has connecting rod is fixed on the inner chamber base plate of piston, perhaps described threaded pin is threaded in the tapped blind hole of described piston, the described bulb that has connecting rod is fixed on the inner chamber base plate of piston, and makes on the axis that is centered close to piston of bulb.
The piston of above-mentioned hermetic type compressor and the linkage structure of connecting rod wherein, also comprise ring installation base plate, and this installs the intracavity diameter coupling of the external diameter and the piston of base plate, the locating stud diameter of interior circular diameter and described bulb or threaded pin external diameter coupling;
Radially be provided with a circlip groove on the inner chamber perisporium of described piston;
Fixedlys connected in the interior circle of the locating stud insertion installation base plate of described bulb and with the installation base plate, perhaps the threaded pin of described bulb is inserted in the interior circle that base plate is installed and with the installation base plate and is fixedlyed connected, and the other end is riveted in the ball seat of described connecting rod rotationally;
The described installation base plate that has bulb and a connecting rod inserts in the blind hole of described piston with the locating stud interference fit ground of described bulb, the perhaps described installation base plate that has connecting rod and a bulb is threaded in the tapped blind hole of described piston with the threaded pin of described bulb, and in the circlip groove of described piston, be embedded the mode of a check ring, the described installation base plate that has bulb and connecting rod is fixed between the inner chamber base plate of check ring and piston, and makes on the axis that is centered close to piston of bulb.
The piston of above-mentioned hermetic type compressor and the linkage structure of connecting rod wherein, also comprise ring installation base plate, and this installs the intracavity diameter coupling of the external diameter and the piston of base plate, and interior circular diameter is less than the diameter of bulb;
Radially be provided with a circlip groove on the inner chamber perisporium of described piston, its inner chamber diapire central authorities are axially arranged with a blind cylindrical hole or tapped blind hole;
One of described bulb is sat up straight to drop on the interior circle that base plate is installed and with the surface that base plate is installed and is fixedlyed connected, and the other end is riveted in the ball seat of described connecting rod rotationally;
Another surface central authorities of described installation base plate extend one with the hollow cylinder of the blind hole coupling of described piston or with the cored screw of the tapped blind hole coupling of described piston;
The described hollow cylinder interference fit ground that has the installation base plate of bulb and connecting rod inserts in the blind hole of described piston, the cored screw that base plate perhaps is installed is threaded in the tapped blind hole of described piston, and in the circlip groove of described piston, be embedded a check ring, the described installation base plate that has bulb and connecting rod is fixed between the inner chamber base plate of check ring and piston, and makes on the axis that is centered close to piston of bulb.
The technological scheme of the piston of hermetic type compressor of the present utility model and the linkage structure of connecting rod, though still form a ball bearing at the inner chamber of piston and the end of connecting rod, yet changed the assembly technology of ball bearing, promptly rivet outside earlier bulb being fixed on the installation base plate and of piston with the ball seat of interlinking lever end, and then the installation base plate that will have bulb and connecting rod is fixed in the piston cavity, therefore greatly reduce riveted joint design of Clamping Apparatus and manufacture difficulty between bulb and the ball seat, both manufacture cost can be significantly reduced, and higher assembly precision can be in lower anchor clamps manufacture cost, obtained again.
Description of drawings
Fig. 1 is the structural representation of closed reciprocating compressor;
Fig. 2 is the schematic representation of the linkage structure of the piston of closed reciprocating compressor of prior art and connecting rod;
Fig. 3 is the schematic representation of the linkage structure of the piston of closed reciprocating compressor of the present utility model and connecting rod;
Fig. 4 is a kind of embodiment's the schematic representation of the linkage structure of the piston of closed reciprocating compressor of the present utility model and connecting rod;
Fig. 5 is another kind of embodiment's the schematic representation of the linkage structure of the piston of closed reciprocating compressor of the present utility model and connecting rod.
Embodiment
In order to understand the technical solution of the utility model better, below by embodiment particularly and be described in detail in conjunction with the accompanying drawings:
See also Fig. 3, the piston of hermetic type compressor of the present utility model and the linkage structure of connecting rod comprise connecting rod 4, bucket piston 2 and bulb 3,
The end of connecting rod 4 connects the ball seat 40 of an opening;
The bulb 3 that has connecting rod 4 is fixed on the inner chamber base plate of piston 2, makes on the axis that is centered close to piston 2 of bulb 3.
In one embodiment, the inner chamber diapire central authorities of piston 2 are axially arranged with a blind cylindrical hole 20;
The cylindrical locating stud 30 of the one end extension one of bulb 3 and the blind hole 20 diameters coupling of piston 2, the other end of this bulb 3 is riveted in the ball seat 40 of connecting rod 4 rotationally;
The bulb 3 that has connecting rod 4 is fixed on the inner chamber base plate of piston 20 in the mode in the blind hole 20 of its locating stud 30 interference fit ground insertion piston 2, makes on the axis that is centered close to piston 2 of bulb 3.
In another embodiment, the inner chamber diapire central authorities of piston 2 are axially arranged with a tapped blind hole 20 ';
The threaded pin 30 ' of the one end extension one of bulb 3 and the tapped blind hole 20 ' coupling of piston 2, the other end of bulb 3 is riveted in the ball seat 40 of connecting rod 4 rotationally;
The mode that the bulb 3 that has a connecting rod 4 is threaded into its threaded pin 30 ' in the tapped blind hole 20 ' of piston 2 is fixed on the inner chamber base plate of piston 2, makes on the axis that is centered close to piston 2 of bulb 3.
In the 3rd embodiment (consulting Fig. 4), the piston of hermetic type compressor of the present utility model and the linkage structure of connecting rod comprise that also one installs base plate 1, this installs the intracavity diameter coupling of the external diameter and the piston 2 of base plate 1, locating stud 30 diameters interior garden 10 and bulb 3 or threaded pin 30 ' external diameter coupling;
Radially be provided with a circlip groove 21 on the inner chamber perisporium of piston 2,
The locating stud 30 of bulb 3 inserts in the interior circle 10 that base plate 1 is installed and with installation base plate 1 fixedlys connected, perhaps the threaded pin 30 ' of bulb 3 is inserted in the interior circle 10 that base plate 1 is installed and with installation base plate 1 and is fixedlyed connected, and the other end is riveted in the ball seat 40 of connecting rod 4 rotationally;
Have in the blind hole 20 of installation base plate 1 with the locating stud 30 interference fit ground insertion piston 2 of bulb 3 of bulb 3 and connecting rod 4, the installation base plate 1 that perhaps has connecting rod 4 and a bulb 3 is threaded in the tapped blind hole 20 ' of piston 2 with the threaded pin 30 ' of bulb 3, and in the circlip groove 21 of piston 2, be embedded the mode of a check ring 23, the installation base plate 1 that has bulb 3 and connecting rod 4 is fixed between the inner chamber base plate of check ring 23 and piston 2, and makes on the axis that is centered close to piston 2 of bulb 3.
Also can take to extend a hollow cylinder 11 or be cored screw 11 ' (consulting Fig. 5) in the surface central authorities that base plate 1 is installed, one of bulb 3 is sat up straight to drop on the interior circle 10 that base plate 1 is installed and with another surface that base plate 1 is installed and is fixedlyed connected, and the other end of bulb 3 is riveted in connecting rod 4 ball seats 40 rotationally; The hollow cylinder 11 interference fit ground that will have the installation base plate 1 of bulb 3 and connecting rod 4 inserts in the blind hole 20 of piston 2, the cored screw 11 ' that perhaps will have the installation base plate 1 of bulb 3 and connecting rod 4 is threaded in the tapped blind hole 20 ' of piston 2, and by in the circlip groove 21 of piston 2, being embedded a check ring 23, the installation base plate 1 that has bulb 3 and connecting rod 4 is fixed between the inner chamber base plate of check ring 23 and piston 2, and makes on the axis that is centered close to piston 2 of bulb 3.
The piston of hermetic type compressor of the present utility model with the assembly technology of the linkage structure of connecting rod is: bulb is fixedlyed connected with the mode that base plate employing welding is installed earlier, adopt special-purpose riveted joint anchor clamps that the ball seat of bulb and interlinking lever end is riveted rotationally again, the installation base plate that will have bulb and connecting rod then is fixed on the inner chamber base plate of piston by check ring.
The technological scheme of the piston of hermetic type compressor of the present utility model and the linkage structure of connecting rod, though still form a ball bearing at the inner chamber of piston and the end of connecting rod, yet changed the assembly technology of ball bearing, be about to the end that ball seat is arranged on connecting rod, bulb is made as independently part, increase again independently in addition and one a base plate and a check ring are installed, rivet outside earlier bulb being fixed on the installation base plate and of piston with the ball seat of interlinking lever end, and then the installation base plate that will have bulb and connecting rod is fixed in the piston cavity, therefore greatly reduce riveted joint design of Clamping Apparatus and manufacture difficulty between bulb and the ball seat, both manufacture cost can be significantly reduced, and higher assembly precision can be in lower anchor clamps manufacture cost, obtained again.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model the above embodiment's variation, modification.
Claims (4)
1. the linkage structure of the piston of a hermetic type compressor and connecting rod comprises connecting rod and bucket piston, it is characterized in that, also comprises a bulb,
The end of described connecting rod connects the ball seat of an opening;
Described bulb is riveted in the ball seat of described connecting rod rotationally;
The described bulb that has connecting rod is fixed on the inner chamber base plate of piston, makes on the axis that is centered close to piston of bulb.
2. the linkage structure of the piston of hermetic type compressor according to claim 1 and connecting rod is characterized in that,
The inner chamber diapire central authorities of described piston are axially arranged with a blind cylindrical hole or tapped blind hole;
One end of described bulb extends a cylindrical locating stud or a threaded pin, the blind hole diameter coupling of described cylindrical locating stud and described piston, the tapped blind hole coupling of described threaded pin and described piston, the other end of this bulb is riveted in the ball seat of described connecting rod rotationally;
Described locating stud interference fit ground inserts in the blind hole of described piston, the described bulb that has connecting rod is fixed on the inner chamber base plate of piston, perhaps described threaded pin is threaded in the tapped blind hole of described piston, the described bulb that has connecting rod is fixed on the inner chamber base plate of piston, and makes on the axis that is centered close to piston of bulb.
3. the linkage structure of the piston of hermetic type compressor according to claim 2 and connecting rod, it is characterized in that, also comprise ring installation base plate, this installs the intracavity diameter coupling of the external diameter and the piston of base plate, the locating stud diameter of interior circular diameter and described bulb or threaded pin external diameter coupling;
Radially be provided with a circlip groove on the inner chamber perisporium of described piston;
Fixedlys connected in the interior circle of the locating stud insertion installation base plate of described bulb and with the installation base plate, perhaps the threaded pin of described bulb is inserted in the interior circle that base plate is installed and with the installation base plate and is fixedlyed connected, and the other end is riveted in the ball seat of described connecting rod rotationally;
The described installation base plate that has bulb and a connecting rod inserts in the blind hole of described piston with the locating stud interference fit ground of described bulb, the perhaps described installation base plate that has connecting rod and a bulb is threaded in the tapped blind hole of described piston with the threaded pin of described bulb, and in the circlip groove of described piston, be embedded the mode of a check ring, the described installation base plate that has bulb and connecting rod is fixed between the inner chamber base plate of check ring and piston, and makes on the axis that is centered close to piston of bulb.
4. the linkage structure of the piston of hermetic type compressor according to claim 1 and connecting rod is characterized in that, also comprises ring installation base plate, and this installs the intracavity diameter coupling of the external diameter and the piston of base plate, and interior circular diameter is less than the diameter of bulb;
Radially be provided with a circlip groove on the inner chamber perisporium of described piston, its inner chamber diapire central authorities are axially arranged with a blind cylindrical hole or tapped blind hole;
One of described bulb is sat up straight to drop on the interior circle that base plate is installed and with the surface that base plate is installed and is fixedlyed connected, and the other end is riveted in the ball seat of described connecting rod rotationally;
Another surface central authorities of described installation base plate extend one with the hollow cylinder of the blind hole coupling of described piston or with the cored screw of the tapped blind hole coupling of described piston;
The described hollow cylinder interference fit ground that has the installation base plate of bulb and connecting rod inserts in the blind hole of described piston, the cored screw that base plate perhaps is installed is threaded in the tapped blind hole of described piston, and in the circlip groove of described piston, be embedded a check ring, the described installation base plate that has bulb and connecting rod is fixed between the inner chamber base plate of check ring and piston, and makes on the axis that is centered close to piston of bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200770330U CN201531392U (en) | 2009-06-25 | 2009-06-25 | Connection structure of piston and connection rod of sealed compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200770330U CN201531392U (en) | 2009-06-25 | 2009-06-25 | Connection structure of piston and connection rod of sealed compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201531392U true CN201531392U (en) | 2010-07-21 |
Family
ID=42526796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200770330U Expired - Fee Related CN201531392U (en) | 2009-06-25 | 2009-06-25 | Connection structure of piston and connection rod of sealed compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201531392U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003414A (en) * | 2015-07-31 | 2015-10-28 | 江苏白雪电器股份有限公司 | Hermetic compressor |
| CN108302010A (en) * | 2018-03-06 | 2018-07-20 | 加西贝拉压缩机有限公司 | A kind of piston rod device for refrigeration compressor |
-
2009
- 2009-06-25 CN CN2009200770330U patent/CN201531392U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003414A (en) * | 2015-07-31 | 2015-10-28 | 江苏白雪电器股份有限公司 | Hermetic compressor |
| CN108302010A (en) * | 2018-03-06 | 2018-07-20 | 加西贝拉压缩机有限公司 | A kind of piston rod device for refrigeration compressor |
| CN108302010B (en) * | 2018-03-06 | 2020-07-28 | 加西贝拉压缩机有限公司 | Piston connecting rod device for refrigeration compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100721 Termination date: 20110625 |