Crank-connecting rod mechanism for refrigeration compressor

Abstract

The utility model belongs to the technical field of crank-connecting rod mechanisms, and discloses a crank-connecting rod mechanism for a refrigeration compressor, which comprises a crank body, a connecting rod body is mounted on the crank body, a piston is mounted on the connecting rod body, an air cylinder is covered outside the piston, a liquid inlet pipeline is arranged on one side of the air cylinder, and a liquid outlet pipeline is arranged on the other side of the air cylinder. A liquid inlet pipeline is arranged on the outer wall of the cylinder, a liquid outlet end of the liquid inlet pipeline is connected with an annular pipeline, the annular pipeline is wound on the outer wall of the cylinder, the liquid outlet pipeline is connected with a first liquid guide pipeline, a liquid pump is arranged on the first liquid guide pipeline, and a liquid outlet end of the liquid pump is connected with a second liquid guide pipeline. The annular pipeline is wound on the outer wall of the air cylinder, heat of the side wall of the air cylinder can be effectively transferred into a condensing agent, the infusion pump forms a circulating cooling system through the first liquid guide pipeline and the second liquid guide pipeline, the temperature of the air cylinder is effectively reduced, the efficiency and reliability of the compressor are improved, and the service life of the compressor is prolonged.

Description

Technical Field

[0001] This utility model belongs to the technical field of crank-connecting rod mechanisms, specifically relating to a crank-connecting rod mechanism for a refrigeration compressor. Background Technology

[0002] The crank-connecting rod mechanism is a common mechanical transmission mechanism that converts rotary motion into reciprocating linear motion, or vice versa. This mechanism is widely used in various mechanical devices, such as internal combustion engines, compressors, pumps, and machine tools.

[0003] In existing refrigeration compressors using crank-connecting rod mechanisms, prolonged use of the cylinder can cause the cylinder temperature to rise. High temperatures can thin the lubricating oil between the cylinder wall and the piston, leading to decreased compressor performance or even damage. Furthermore, the connection between the connecting rod and the cylinder is usually achieved through the piston and piston pin, which makes the connecting rod and cylinder prone to fatigue wear, thus increasing the risk of failure. Utility Model Content

[0004] The purpose of this invention is to provide a crank-connecting rod mechanism for a refrigeration compressor, in order to solve the problems mentioned in the background art, such as high temperature causing the lubricating oil between the cylinder wall and the piston to become thin, resulting in decreased compressor performance or even damage, and the connection between the connecting rod and the cylinder is usually achieved through the piston and piston pin, which makes the connecting rod and cylinder prone to fatigue wear.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a crank-connecting rod mechanism for a refrigeration compressor, comprising: a crank body, a connecting rod body mounted on the crank body, a piston mounted on the connecting rod body, a cylinder covering the piston, an inlet pipe on one side of the cylinder, an annular pipe connected to the outlet end of the inlet pipe, the annular pipe being wound around the outer wall of the cylinder, and an outlet pipe connected to the outlet end of the annular pipe.

[0006] Preferably, a first liquid guiding pipe is connected to the liquid outlet pipe, a liquid pump is installed on the first liquid guiding pipe, and a second liquid guiding pipe is connected to the liquid outlet end of the liquid pump, and the second liquid guiding pipe is connected to the liquid inlet pipe.

[0007] Preferably, a fan is installed on the outer wall of the cylinder, and the fan faces the second liquid guide pipe. A cover is provided outside the fan, and a cover is installed on the cover. A snap-fit ​​assembly is provided between the cover and the cover.

[0008] Preferably, the snap-fit ​​assembly includes a slot and a block, the slot being formed on the cover and the block being mounted on the cover, the slot and the block being compatible.

[0009] Preferably, a mounting plate is connected to the side wall of the connecting rod body, a through groove is provided on the mounting plate, a connecting post is provided through the through groove, and a fastening assembly is provided between the connecting post and the cylinder.

[0010] Preferably, the fastening assembly includes a mounting block, a threaded groove, and an external thread. The mounting block is fixed to the outer wall of the cylinder, the threaded groove is formed on the mounting block, and the external thread is formed on the outer wall of the connecting column. The threaded groove and the external thread are compatible with each other.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) This utility model cools the cylinder by setting up an annular pipe, a liquid pump, a first liquid guide pipe and a second liquid guide pipe. When in use, the annular pipe is wrapped around the outer wall of the cylinder, which can effectively transfer the heat of the cylinder side wall to the refrigerant. The liquid pump forms a circulating cooling system through the first liquid guide pipe and the second liquid guide pipe, which effectively reduces the temperature of the cylinder, improves the efficiency and reliability of the compressor, reduces wear, extends the service life of the compressor, and saves costs.

[0013] (2) By setting a connecting column, threaded groove and external thread, this utility model strengthens the connection between the connecting rod body and the cylinder. When in use, the connecting column is screwed on, and the interaction between the threaded groove and the external thread is used to tighten the connection between the connecting column and the mounting block, thereby strengthening the connection between the connecting rod body and the cylinder, improving the output power and torque of the compressor, reducing the noise and vibration generated during the operation of the compressor, and extending the service life of the compressor. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the fan of this utility model;

[0016] Figure 3 This is a schematic diagram of the mounting plate of this utility model;

[0017] Figure 4 for Figure 2 Enlarged view of part A in the image;

[0018] Figure 5 for Figure 3 Enlarged view of part B in the image;

[0019] In the diagram: 1. Crank body; 2. Connecting rod body; 3. Piston; 4. Cylinder; 5. Inlet pipe; 6. Annular pipe; 7. Outlet pipe; 8. First liquid guide pipe; 9. Pump; 10. Second liquid guide pipe; 11. Fan; 12. Cover; 13. Cover; 14. Slot; 15. Block; 16. Mounting plate; 17. Through groove; 18. Connecting column; 19. Mounting block; 20. Threaded groove; 21. External thread. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 As shown, this utility model provides the following technical solution: a crank-connecting rod mechanism for a refrigeration compressor, comprising: a crank body 1, a connecting rod body 2 mounted on the crank body 1, a piston 3 mounted on the connecting rod body 2, a cylinder 4 covering the piston 3, an inlet pipe 5 provided on one side of the cylinder 4, an annular pipe 6 connected to the outlet end of the inlet pipe 5, and the annular pipe 6 wrapped around the outer wall of the cylinder 4, and an outlet pipe 7 connected to the outlet end of the annular pipe 6.

[0022] Furthermore, a first liquid guiding pipe 8 is connected to the liquid outlet pipe 7, a liquid pump 9 is installed on the first liquid guiding pipe 8, and the liquid outlet end of the liquid pump 9 is connected to a second liquid guiding pipe 10, and the second liquid guiding pipe 10 is connected to the liquid inlet pipe 5.

[0023] Furthermore, a fan 11 is installed on the outer wall of the cylinder 4, and the fan 11 faces the second liquid guide pipe 10. A cover 12 is provided outside the fan 11, and a cover 13 is installed on the cover 12. A snap-fit ​​assembly is provided between the cover 12 and the cover 13.

[0024] Furthermore, the snap-fit ​​assembly includes a slot 14 and a block 15. The slot 14 is formed on the cover 12, and the block 15 is mounted on the cover 13. The slot 14 and the block 15 are compatible with each other.

[0025] Through the above technical solution:

[0026] In operation, refrigerant is introduced into the annular pipe 6 through the inlet pipe 5. The annular pipe 6 is wrapped around the outer wall of the cylinder 4, effectively transferring heat from the side wall of the cylinder 4 to the refrigerant. Then, the pump 9 is started, and the pump 9 discharges the refrigerant in the outlet pipe 7 through the first liquid guide pipe 8. After passing through the second liquid guide pipe 10, it is reintroduced into the inlet pipe 5, thus forming a circulating cooling system. When the refrigerant passes through the second liquid guide pipe 10, the fan 11 is started, and the fan 11 blows airflow into the second liquid guide pipe 10. The airflow accelerates the heat dissipation rate of the refrigerant in the second liquid guide pipe 10, ensuring the heat dissipation effect of the refrigerant. The circulating cooling can effectively reduce the temperature of the cylinder 4, improve the efficiency and reliability of the compressor, reduce wear, extend the service life of the compressor, and save costs. When it is necessary to inspect the fan 11, the cover 13 is pulled, the locking block 15 is disengaged from the locking slot 14, and then the cover 13 is removed to facilitate the inspection of the fan 11.

[0027] Please see Figure 1 , Figure 3 and Figure 5 As shown, a mounting plate 16 is connected to the side wall of the connecting rod body 2. A through groove 17 is provided on the mounting plate 16. A connecting post 18 passes through the through groove 17. A fastening assembly is provided between the connecting post 18 and the cylinder 4.

[0028] Furthermore, the fastening assembly includes a mounting block 19, a threaded groove 20, and an external thread 21. The mounting block 19 is fixed on the outer wall of the cylinder 4, the threaded groove 20 is formed on the mounting block 19, and the external thread 21 is formed on the outer wall of the connecting column 18. The threaded groove 20 and the external thread 21 are compatible with each other.

[0029] Through the above technical solution:

[0030] In use, the connecting post 18 is passed through the through groove 17, and then the connecting post 18 is screwed on. Through the interaction of the threaded groove 20 and the external thread 21, the connecting post 18 and the mounting block 19 are fastened, thereby strengthening the connection between the connecting rod body 2 and the cylinder 4. By strengthening the connection between the connecting rod body 2 and the cylinder 4, the output power and torque of the compressor can be improved. This is because a more robust connection can more effectively convert the reciprocating motion of the piston 3 into the rotational motion of the crankshaft, reducing the risk of failure due to fatigue, wear or impact, reducing maintenance costs, and reducing the noise and vibration generated during compressor operation. It can also improve the durability of the connection between the connecting rod body 2 and the cylinder 4, enabling it to withstand high-load operation for a longer period of time.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crank-connecting rod mechanism for a refrigeration compressor, characterized in that, include: A crank body (1) is provided, a connecting rod body (2) is mounted on the crank body (1), a piston (3) is mounted on the connecting rod body (2), a cylinder (4) is covered by the piston (3), an inlet pipe (5) is provided on one side of the cylinder (4), an annular pipe (6) is connected to the outlet end of the inlet pipe (5), and the annular pipe (6) is wrapped around the outer wall of the cylinder (4), and an outlet pipe (7) is connected to the outlet end of the annular pipe (6).

2. The crank-connecting rod mechanism for a refrigeration compressor according to claim 1, characterized in that: The liquid outlet pipe (7) is connected to a first liquid guide pipe (8), and a liquid pump (9) is installed on the first liquid guide pipe (8). The liquid outlet end of the liquid pump (9) is connected to a second liquid guide pipe (10), and the second liquid guide pipe (10) is connected to the liquid inlet pipe (5).

3. The crank-connecting rod mechanism for a refrigeration compressor according to claim 2, characterized in that: A fan (11) is installed on the outer wall of the cylinder (4), and the fan (11) faces the second liquid guide pipe (10). A cover (12) is provided outside the fan (11), and a cover (13) is installed on the cover (12). A snap-fit ​​assembly is provided between the cover (12) and the cover (13).

4. The crank-connecting rod mechanism for a refrigeration compressor according to claim 3, characterized in that: The snap-fit ​​assembly includes a slot (14) and a snap block (15). The slot (14) is formed on the cover (12), and the snap block (15) is installed on the cover (13). The slot (14) and the snap block (15) are compatible with each other.

5. A crank-connecting rod mechanism for a refrigeration compressor according to claim 4, characterized in that: A mounting plate (16) is connected to the side wall of the connecting rod body (2). A through groove (17) is provided on the mounting plate (16). A connecting post (18) passes through the through groove (17). A fastening assembly is provided between the connecting post (18) and the cylinder (4).

6. A crank-connecting rod mechanism for a refrigeration compressor according to claim 5, characterized in that: The fastening assembly includes a mounting block (19), a threaded groove (20), and an external thread (21). The mounting block (19) is fixed on the outer wall of the cylinder (4). The threaded groove (20) is formed on the mounting block (19), and the external thread (21) is formed on the outer wall of the connecting column (18). The threaded groove (20) and the external thread (21) are compatible.

Images