CN217271399U - Compressor connecting rod structure - Google Patents
Compressor connecting rod structure Download PDFInfo
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- CN217271399U CN217271399U CN202220646681.9U CN202220646681U CN217271399U CN 217271399 U CN217271399 U CN 217271399U CN 202220646681 U CN202220646681 U CN 202220646681U CN 217271399 U CN217271399 U CN 217271399U
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Abstract
The utility model discloses a compressor connecting rod structure, including connecting rod body and articulated spheroid, be equipped with crankshaft connection hole and spheroid connecting hole on the connecting rod body, articulated spheroid sets up in the spheroid connecting hole and is articulated with spheroid connecting hole ball, and articulated spheroid center is equipped with the piston connection hole. The utility model provides a compressor connecting rod structure increases the unlimited degree of freedom of 360 degrees orientations of connecting rod, the size required precision of reduction, and the processing cost of compressor and processing equipment's requirement reduce, and the production uniformity of compressor also has great improvement.
Description
Technical Field
The utility model belongs to the technical field of the compressor technique and specifically relates to a compressor connecting rod structure is related to.
Background
At present, the cost requirement of refrigerator customers on the compressor is higher and higher, but the performance requirement on the compressor is continuously upward at the same time, and how to reduce the cost of the compressor and simultaneously keep the performance of the compressor does not become the research and development focus of refrigerator compressor enterprises. While the design cost of the compressor is reduced, the cost control of the parts and the process is another development direction. In the design amount of the compressor, how to reduce the processing difficulty and reduce the requirements on processing equipment become the key point of part design. Therefore, the application provides a compressor connecting rod structure, can be so that the compressor connecting rod greatly increases at the degree of freedom to make the straightness that hangs down in compressor cylinder hole and bent axle hole require to reduce, reduce the processing cost of the part of compressor, improved the reliability of compressor simultaneously.
Chinese patent application publication No. CN203962319U, published as 2014, 11.26.titled "a refrigeration compressor piston driving mechanism", discloses a refrigeration compressor piston driving mechanism, which comprises a driving motor and a crankshaft connecting rod mechanism, wherein the crankshaft connecting rod mechanism comprises a crankshaft and a connecting rod connected between a crankshaft crank and a compressor piston, a crankshaft hole with a central line perpendicular to a central line of a piston cavity is arranged on a compressor cylinder seat, the crankshaft is arranged in the crankshaft hole, bearing installation parts are respectively arranged at two ends of an inner cavity of the crankshaft hole, and a radial force bearing a radial force and a composite bearing radial force bearing a radial force axial force at the same time are arranged on the bearing installation parts, so that the requirements of surface processing progress of the crankshaft and the crankshaft hole, and the energy consumption and noise of the compressor are reduced; a roller path is arranged on one end face of an outer ring of the composite bearing radial force bearing part and serves as a thrust race of the axial force bearing part, and the thrust race supports a crank part of the crankshaft. However, the connecting rod structure in the compressor still has the above problems.
Disclosure of Invention
The utility model discloses an overcome not enough among the prior art, provide a compressor connecting rod structure, increase the unlimited degree of freedom of 360 degrees orientations of connecting rod, the size precision requirement of reduction, the processing cost of compressor and the requirement of processing equipment reduce, and the production uniformity of compressor also has great improvement.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a compressor connecting rod structure, includes connecting rod body and articulated spheroid, is equipped with bent axle connecting hole and spheroid connecting hole on the connecting rod body, and articulated spheroid setting is in the spheroid connecting hole and with spheroid connecting hole ball joint, and articulated spheroid center is equipped with the piston connecting hole.
In the technical scheme, the original connecting rod is divided into the connecting rod body and the hinged sphere, and the piston connecting hole is added in the hinged sphere, so that the connecting mode of the connecting rod and the piston, and the connecting mode of the connecting rod and the eccentric shaft of the crankshaft are kept unchanged. Through the spherical hinge of connecting rod body and articulated spheroid, will increase the unlimited degree of freedom of 360 degrees directions of connecting rod, the straightness requirement that hangs down of the axis of motion of piston and the axis of rotation of bent axle at this moment reduces by a wide margin, and the while spheroid connecting hole of connecting rod, piston connecting hole and the parallel degree of bent axle connecting hole do not have the requirement basically, and the processing cost of compressor and the requirement of processing equipment reduce, and the production uniformity of compressor also has great improvement.
Preferably, the upper and lower ends of the hinge ball protrude through the ball connection hole. The structure can avoid the interference of the piston connecting pin and the connecting rod when the hinged ball body rotates.
Preferably, a communicating groove is formed in the side wall of the hinged sphere and communicates the piston connecting hole in the hinged sphere with the outside. The communicating groove enables the hinged ball body to have certain elasticity, the hinged ball body is deformed inwards to reduce the appearance volume when the hinged ball body is installed, the hinged ball body is convenient to install into the ball body connecting hole, and the hinged ball body rebounds to be normal after the hinged ball body is installed. Meanwhile, the communicating groove also plays a role in communicating the inside and the outside of the hinged ball body, so that lubricating oil can conveniently enter the inside from the outside, and the lubrication is convenient.
Preferably, a connecting through hole is formed in the connecting rod body, and two ends of the connecting through hole are respectively connected with the sphere connecting hole and the crankshaft connecting hole. The structure can make the lubricating oil conveyed from the crankshaft enter the sphere connecting hole through the connecting through hole, so that the lubricating effect is improved.
Preferably, the communication groove faces the connection through hole. The structure is convenient for lubricating oil in the connecting through hole to enter the inner side of the hinged ball body.
Preferably, the hinged ball body is in interference fit with the ball body connecting hole. At the connecting rod normal operating in-process, articulated spheroid almost need not relative movement with the connecting rod body, only need carry out self-adaptation adjustment when the installation, because the existence in intercommunication groove, even articulated spheroid and spheroid connecting hole interference fit do not influence the installation yet, and can reduce rocking and noise of connecting rod operation in-process through interference fit.
Preferably, the piston connecting device further comprises a piston connecting pin, the piston connecting pin is arranged in the piston connecting hole, and the piston connecting pin is rotatably connected with the piston connecting hole.
Preferably, the outer surface of the hinged sphere is provided with a plurality of oil storage shallow grooves. The structure can increase the oil storage effect of the outer surface of the hinged ball body, and further increase the lubricating effect.
The beneficial effects of the utility model are that: (1) the infinite degree of freedom in the 360-degree direction of the connecting rod is increased, the requirement on size precision is lowered, the processing cost of the compressor and the requirement on processing equipment are lowered, and the production consistency of the compressor is greatly improved. (2) The connecting groove enables the hinged ball body to have certain elasticity, installation is convenient, the connecting groove also plays a role in connecting the inside and the outside of the hinged ball body, and lubricating oil can conveniently enter the inside from the outside and can be conveniently lubricated.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a sectional view taken along line a-a in fig. 1.
In the figure: the connecting rod comprises a connecting rod body 1, a crankshaft connecting hole 1.1, a sphere connecting hole 1.2, a connecting through hole 1.3, a hinged sphere 2, a piston connecting hole 2.1, a communicating groove 2.2 and a piston connecting pin 3.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
Example 1:
as shown in fig. 1 and 2, a compressor connecting rod structure includes a connecting rod body 1, a hinge sphere 2 and a plug connecting pin, the connecting rod body 1 is provided with a crankshaft connecting hole 1.1 and a sphere connecting hole 1.2, the hinge sphere 2 is disposed in the sphere connecting hole 1.2 and is in spherical hinge with the sphere connecting hole 1.2, the upper and lower ends of the hinge sphere 2 protrude out of the sphere connecting hole 1.2, and the center of the hinge sphere 2 is provided with a piston connecting hole 2.1. The piston connecting pin 3 is arranged in the piston connecting hole 2.1, and the piston connecting pin 3 is rotatably connected with the piston connecting hole 2.1.
In the technical scheme, the original connecting rod is divided into the connecting rod body 1 and the hinged sphere 2, and the piston connecting hole 2.1 is additionally arranged in the hinged sphere 2, so that the connecting mode of the connecting rod and the piston, and the connecting rod and the eccentric shaft of the crankshaft is kept unchanged. Through the spherical hinge of the connecting rod body 1 and the hinge ball body 2, the infinite degree of freedom in the 360-degree direction of the connecting rod is increased, the verticality requirement of the motion axis of the piston and the rotation axis of the crankshaft is greatly reduced, meanwhile, the parallelism of the ball connecting hole 1.2 of the connecting rod, the piston connecting hole 2.1 and the crankshaft connecting hole 1.1 is basically not required, the processing cost of the compressor and the requirement of processing equipment are reduced, and the production consistency of the compressor is greatly improved.
Example 2:
as shown in fig. 1 and 2, on the basis of embodiment 1, the hinge ball 2 is in interference fit with the ball connecting hole 1.2. The side wall of the hinged sphere 2 is provided with a communicating groove 2.2, and the communicating groove 2.2 communicates the piston connecting hole 2.1 on the hinged sphere 2 with the outside. The connecting rod is characterized in that a connecting through hole 1.3 is formed in the connecting rod body 1, two ends of the connecting through hole 1.3 are respectively connected with a sphere connecting hole 1.2 and a crankshaft connecting hole 1.1, and the communicating groove 2.2 faces the connecting through hole 1.3. The outer surface of the hinged sphere 2 is provided with a plurality of oil storage shallow grooves.
The communicating groove 2.2 enables the hinged ball body 2 to have certain elasticity, when the hinged ball body 2 is installed, the hinged ball body 2 deforms inwards to reduce the appearance volume, the hinged ball body is conveniently installed into the ball body connecting hole 1.2, and the hinged ball body 2 rebounds to be normal in size after being installed. Simultaneously, the communicating groove 2.2 also plays a role in communicating the inside and the outside of the hinged ball body 2, so that lubricating oil can enter the inside from the outside, and the lubrication is facilitated. At the connecting rod normal operating in-process, articulated spheroid 2 need not relative movement with connecting rod body 1 almost, only need carry out self-adaptation adjustment when the installation, because the existence of intercommunication groove 2.2, even articulated spheroid 2 and spheroid connecting hole 1.2 interference fit, do not influence the installation yet, and can reduce rocking and noise of connecting rod operation in-process through interference fit.
The beneficial effects of the utility model are that: (1) the infinite degree of freedom in the 360-degree direction of the connecting rod is increased, the requirement on size precision is lowered, the processing cost of the compressor and the requirement on processing equipment are lowered, and the production consistency of the compressor is greatly improved. (2) The communicating groove 2.2 enables the hinged ball 2 to have certain elasticity, so that the installation is convenient, the communicating groove 2.2 also plays a role in communicating the inside and the outside of the hinged ball 2, and lubricating oil can enter the inside from the outside and is convenient to lubricate.
Claims (8)
1. A compressor connecting rod structure is characterized by comprising a connecting rod body and a hinged ball body, wherein a crankshaft connecting hole and a ball body connecting hole are formed in the connecting rod body, the hinged ball body is arranged in the ball body connecting hole and is in ball hinge connection with the ball body connecting hole, and a piston connecting hole is formed in the center of the hinged ball body.
2. The connecting rod structure of compressor as claimed in claim 1, wherein the upper and lower ends of the hinge ball protrude through the ball coupling hole.
3. The compressor connecting rod structure according to claim 1 or 2, wherein the side wall of the hinge ball is provided with a communication groove communicating the piston connection hole of the hinge ball with the outside.
4. The connecting rod structure of compressor as claimed in claim 3, wherein the connecting rod body has a connecting through hole therein, and both ends of the connecting through hole are connected to the ball connecting hole and the crank connecting hole, respectively.
5. The compressor connecting rod structure as set forth in claim 4, wherein the communication groove faces the connection through hole.
6. A compressor connecting rod structure in accordance with claim 3, wherein said hinge ball is interference-fitted with the ball connecting hole.
7. The connecting rod structure of compressor as claimed in claim 1 or 2, further comprising a piston connecting pin disposed in the piston connecting hole, the piston connecting pin being rotatably connected to the piston connecting hole.
8. A compressor connecting rod structure in accordance with claim 1 or 2, wherein said hinge ball has a plurality of oil storage grooves formed on an outer surface thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220646681.9U CN217271399U (en) | 2022-03-23 | 2022-03-23 | Compressor connecting rod structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220646681.9U CN217271399U (en) | 2022-03-23 | 2022-03-23 | Compressor connecting rod structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217271399U true CN217271399U (en) | 2022-08-23 |
Family
ID=82870995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220646681.9U Active CN217271399U (en) | 2022-03-23 | 2022-03-23 | Compressor connecting rod structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217271399U (en) |
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2022
- 2022-03-23 CN CN202220646681.9U patent/CN217271399U/en active Active
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