CN220791755U - Connecting rod of refrigeration compressor - Google Patents
Connecting rod of refrigeration compressor Download PDFInfo
- Publication number
- CN220791755U CN220791755U CN202322262438.4U CN202322262438U CN220791755U CN 220791755 U CN220791755 U CN 220791755U CN 202322262438 U CN202322262438 U CN 202322262438U CN 220791755 U CN220791755 U CN 220791755U
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- CN
- China
- Prior art keywords
- connecting rod
- crankshaft
- compressor
- end cap
- contact block
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005057 refrigeration Methods 0.000 title abstract description 16
- 238000005096 rolling process Methods 0.000 claims abstract description 16
- 239000003507 refrigerant Substances 0.000 claims description 7
- 238000005299 abrasion Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Compressor (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a refrigeration compressor connecting rod, which comprises a compressor connecting rod main body, a connecting rod big head and a bearing bush, wherein the bearing bush is arranged between the compressor connecting rod main body and the connecting rod big head, rolling structures are arranged at the front end face and the rear end face of the compressor connecting rod main body and the connecting rod big head, each rolling structure comprises two fixed semi-rings, the two fixed semi-rings are arranged at the edge of the bearing bush, and annular grooves are formed in the fixed semi-rings; according to the connecting rod of the refrigeration compressor, the friction between the end face of the connecting rod and the crankshaft can be reduced through the balls, so that the connecting rod can run more smoothly, the refrigeration compressor can run for a long time or at a high speed more durable, the contact blocks can be abutted against the two side walls of the crankshaft, the connecting rod cannot contact with the two side walls of the crankshaft, the number of times that the balls contact with the curved surface can be reduced through the connecting rod positioned in the middle of the crankshaft section, and the connecting rod of the compressor is not easy to damage.
Description
Technical Field
The utility model relates to the field of refrigeration compressors, in particular to a connecting rod of a refrigeration compressor.
Background
The connecting rod of the cold-shrink machine has the functions of transmitting the thrust of the refrigerating steam on the piston to the crankshaft, converting the rotary motion of the crankshaft into the reciprocating motion of the piston, transmitting the power to the piston and then doing work on the refrigerating steam, so that the quality of the connecting rod is critical to the thrust transmission between the crankshaft and the piston.
The existing connecting rod of the refrigeration compressor has certain defects, when the connecting rod rotates along with a crankshaft, the end face of the connecting rod is easy to contact with two side planes of the crankshaft, so that the surface abrasion of the connecting rod is serious, the crankshaft is in contact with the connecting rod, larger loss exists, the connecting rod can move along the axis direction of the crankshaft, if the connecting rod moves too much, the connecting rod is easier to contact with the side face of the crankshaft, or the connecting rod between the crankshaft and a piston is bent, and therefore the connecting rod is broken or abraded greatly.
Disclosure of Invention
The utility model mainly aims to provide a connecting rod of a refrigeration compressor, which can effectively solve the technical problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a refrigeration compressor connecting rod, includes compressor connecting rod main part, the big caping of connecting rod and axle bush, the axle bush sets up between compressor connecting rod main part and the big caping of connecting rod, the terminal surface department all is provided with rolling structure around compressor connecting rod main part and the big caping of connecting rod, rolling structure includes two stationary half rings, and two stationary half rings set up in the edge of axle bush, the ring channel has all been seted up to the inside of stationary half ring, and the inside of ring channel is provided with a plurality of balls, and all is provided with middle end cap between two stationary half ring tip, middle end cap and two ring channel looks block.
As a preferable technical scheme of the utility model, limiting grooves are formed in the joint surfaces of the connecting rod main body and the connecting rod large cover head of the compressor, limiting blocks are arranged on the side wall of each middle plug, and the limiting blocks are matched with the limiting grooves.
As a preferred technical scheme of the utility model, the inner part of the annular groove is matched with the shape of the ball, and the ball is in rolling connection with the annular groove.
As a preferable technical scheme of the utility model, each middle plug is internally provided with a pushing structure, the pushing structure comprises a stepped hole, the stepped hole is formed in the middle plug, a contact block and a telescopic spring are arranged in the stepped hole, one end of the telescopic spring is connected with the contact block, and a fastening bolt is arranged in the middle plug.
As a preferable technical scheme of the utility model, connecting pieces are arranged at two ends of the telescopic spring, one connecting piece is welded with the contact block, and the other connecting piece is screwed with the end part of the fastening bolt.
As a preferable technical scheme of the utility model, the contact block and the stepped hole are both in a stepped shape, and the contact block is in sliding connection with the inside of the stepped hole.
Compared with the prior art, the utility model has the following beneficial effects: the rolling structure is arranged in the utility model, when the connecting rod rotates on the crankshaft, the side wall of the connecting rod is easy to contact with the two side walls of the crankshaft, the friction between the end surface of the connecting rod and the crankshaft can be reduced through the balls, so that the connecting rod can run more smoothly, and the refrigerating compressor can run more durable in long time or high speed;
be provided with pushing structure, the connecting rod is when rotating along the axis direction of bent axle easily and remove, can contact the piece and support the bent axle both sides wall to make the connecting rod can not contact with the both sides wall of bent axle, the connecting rod that is located the bent axle section centre can reduce the number of times that the ball contacted with the curved surface, and the connecting rod of compressor is difficult to damage.
Drawings
FIG. 1 is a schematic view of the overall structure of a connecting rod of a refrigeration compressor according to the present utility model;
FIG. 2 is a schematic diagram of a rolling and pushing arrangement for a refrigerant compressor connecting rod of the present utility model;
FIG. 3 is a schematic view showing a rolling structure of a connecting rod of a refrigeration compressor according to the present utility model;
fig. 4 is an internal schematic view of a pushing structure of a connecting rod of a refrigeration compressor according to the present utility model.
In the figure: 1. a compressor connecting rod main body; 2. a connecting rod big head; 3. bearing bush; 4. a rolling structure; 5. a pushing structure; 41. a stationary half ring; 42. an annular groove; 43. a ball; 44. a middle plug; 45. a limiting block; 46. a limit groove; 51. a stepped hole; 52. a contact block; 53. a telescopic spring; 54. and (5) fastening a bolt.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
As shown in fig. 1-4, a connecting rod of a refrigeration compressor comprises a connecting rod main body 1, a connecting rod big end cap 2 and a bearing bush 3, wherein the bearing bush 3 is arranged between the connecting rod main body 1 and the connecting rod big end cap 2, rolling structures 4 are arranged at the front end face and the rear end face of the connecting rod main body 1 and the connecting rod big end cap 2, each rolling structure 4 comprises two fixed semi-rings 41, each fixed semi-ring 41 is arranged at the edge of the bearing bush 3, annular grooves 42 are formed in each fixed semi-ring 41, a plurality of balls 43 are arranged in each annular groove 42, middle plugs 44 are arranged between the ends of each fixed semi-ring 41, the middle plugs 44 are clamped with the two annular grooves 42, when the connecting rod rotates on a crankshaft, the side walls of the connecting rod are easy to contact with two side walls of the crankshaft, friction between the end faces of the connecting rod and the crankshaft can be reduced through the balls 43, so that the connecting rod runs more smoothly, and the refrigeration compressor runs for a long time or runs at a high speed.
In this embodiment, the joint surface between the compressor connecting rod main body 1 and the connecting rod big end cap 2 is provided with a limiting groove 46, the side wall of each middle plug 44 is provided with a limiting block 45, the limiting blocks 45 are matched with the limiting groove 46, and the mutually matched fixed semi-rings 41 are limited by the limiting blocks 45, so that the relative rotation of the fixed semi-rings 41 during the rotation of the crankshaft in the bearing bush 3 is avoided.
In this embodiment, the shape of the ball 43 is adapted to the inside of the annular groove 42, and the ball 43 is in rolling connection with the annular groove 42, and the ball 43 contacts with two side walls of the crankshaft, so that the connecting rod rotates on the crankshaft more smoothly.
In this embodiment, the inside of every middle end cap 44 all is provided with pushing structure 5, pushing structure 5 includes shoulder hole 51, shoulder hole 51 is seted up in the inside of middle end cap 44, and the inside of shoulder hole 51 is provided with contact block 52 and extension spring 53, the one end of extension spring 53 is connected with contact block 52, the inside of middle end cap 44 is provided with fastening bolt 54, the connecting rod is easy to remove along the axis direction of bent axle when rotating, can contact block 52 butt bent axle both sides wall, thereby make the connecting rod can not contact with the both sides wall of bent axle, the number of times that ball 43 and curved surface contact can be reduced to the connecting rod that is located the middle of the bent axle section, the connecting rod of compressor is difficult to damage.
In this embodiment, two ends of the extension spring 53 are provided with connecting pieces, one connecting piece is welded with the contact block 52, the other connecting piece is screwed with the end of the fastening bolt 54, and the contact block 52 is connected through the extension spring 53 and the connecting piece, so that the contact block 52 can float normally.
In this embodiment, the contact block 52 and the stepped hole 51 are both stepped, the contact block 52 is slidably connected with the inside of the stepped hole 51, and the compressed contact block 52 will abut against two curved side walls, so that the connecting rod is at the middle position of the crankshaft.
During assembling the refrigerating compressor, the two ends of the compressor connecting rod main body 1 are respectively connected with the crankshaft and the piston, wherein the crankshaft is fixed through the compressor connecting rod main body 1 and the connecting rod big end cap 2, a layer of bearing bush 3 is sleeved on the surface of the crankshaft, at the moment, the crankshaft of the refrigerating compressor rotates to drive the connecting rod to move, the end part of the compressor connecting rod main body 1 and the connecting rod big end cap 2 are easy to float along the axis direction of the crankshaft, so that the positions of the compressor connecting rod main body 1 and the connecting rod big end cap 2 are contacted with the two side walls of the crankshaft, as the rolling structures 4 are arranged on the front end surface and the rear end surface of the compressor connecting rod main body 1, at the moment, the balls 43 in the fixing semi-ring 41 are contacted with the middle plane of the crankshaft, the balls 43 roll in the annular groove 42, the connecting rod is reduced to be contacted with the middle plane of the crankshaft by the balls 43, the middle plug 44 between the fixed semi-rings 41 can prevent the balls 43 from exposing from the inside of the annular groove 42, and is clamped with the limiting groove 46 through the limiting block 45, so that the fixed semi-rings 41 are prevented from rotating, the side walls of the connecting rod are easily contacted with the two side walls of the crankshaft when the connecting rod rotates on the crankshaft, the friction between the end faces of the connecting rod and the crankshaft can be reduced through the balls 43, the connecting rod can run more smoothly, the refrigeration compressor is more durable in long-time running or high-speed running, when the connecting rod approaches to the two side walls of the two sides of the crankshaft, the contact blocks 52 are firstly contacted with the side walls of the crankshaft, the compressed telescopic springs 53 push the contact blocks 52, so that the contact between the connecting rod and the side walls of the crankshaft is reduced, the connecting rod is easy to move along the axial direction of the crankshaft when rotating, the contact blocks 52 can abut against the two side walls of the crankshaft, so that the connecting rod cannot contact with the two side walls of the crankshaft, the connecting rod located in the middle of the crank shaft section can reduce the number of times the balls 43 contact the curved surface, and the connecting rod of the compressor is not easily damaged.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. A refrigerant compressor connecting rod, characterized by: including compressor connecting rod main part (1), big end of cover of connecting rod (2) and axle bush (3), axle bush (3) set up between compressor connecting rod main part (1) and big end of cover of connecting rod (2), terminal surface department all is provided with rolling structure (4) around compressor connecting rod main part (1) and the big end of cover of connecting rod (2), rolling structure (4) include two stationary half rings (41), and two stationary half rings (41) set up in the edge of axle bush (3), annular groove (42) have all been seted up to the inside of stationary half rings (41), and the inside of annular groove (42) is provided with a plurality of balls (43), and all is provided with middle end cap (44) between two stationary half rings (41) tip, middle end cap (44) and two annular groove (42) looks block.
2. A refrigerant compressor connecting rod as set forth in claim 1, wherein: limiting grooves (46) are formed in the joint surface of the compressor connecting rod main body (1) and the connecting rod big end cap (2), limiting blocks (45) are arranged on the side wall of each middle plug (44), and the limiting blocks (45) are matched with the limiting grooves (46).
3. A refrigerant compressor connecting rod as set forth in claim 2, wherein: the interior of the annular groove (42) is matched with the shape of the ball (43), and the ball (43) is in rolling connection with the annular groove (42).
4. A refrigerant compressor connecting rod as set forth in claim 1, wherein: every the inside of middle end cap (44) all is provided with promotion structure (5), promote structure (5) including shoulder hole (51), shoulder hole (51) are seted up in the inside of middle end cap (44), and the inside of shoulder hole (51) is provided with contact block (52) and expansion spring (53), and the one end and the contact block (52) of expansion spring (53) are connected, and the inside of middle end cap (44) is provided with fastening bolt (54).
5. A refrigerant compressor connecting rod as set forth in claim 4, wherein: connecting pieces are arranged at two ends of the telescopic spring (53), one connecting piece is welded with the contact block (52), and the other connecting piece is screwed with the end part of the fastening bolt (54).
6. A refrigerant compressor connecting rod as set forth in claim 5, wherein: the contact block (52) and the stepped hole (51) are in a stepped shape, and the contact block (52) is in sliding connection with the inside of the stepped hole (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322262438.4U CN220791755U (en) | 2023-08-23 | 2023-08-23 | Connecting rod of refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322262438.4U CN220791755U (en) | 2023-08-23 | 2023-08-23 | Connecting rod of refrigeration compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220791755U true CN220791755U (en) | 2024-04-16 |
Family
ID=90632560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322262438.4U Active CN220791755U (en) | 2023-08-23 | 2023-08-23 | Connecting rod of refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220791755U (en) |
-
2023
- 2023-08-23 CN CN202322262438.4U patent/CN220791755U/en active Active
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