Piston connecting rod structure of piston type compressor

Abstract

The piston connecting rod structure comprises a piston type compressor cylinder body and a crankshaft, the crankshaft is located on the right side of the piston type compressor cylinder body, a cylinder body sleeve cavity is formed in the right side of the piston type compressor cylinder body, and a piston is connected into the cylinder body sleeve cavity in a sliding mode. By rotating the threaded rod, the threaded rod rotates to drive the threaded sleeve to move, the threaded sleeve moves to drive the sliding block to move, the sliding block moves to drive the limiting sleeve to move, after the limiting sleeve moves rightwards, the pressing piece is not limited any more, and at the moment, the pressing piece can be pulled upwards, so that the pressing piece can be fixed. And the pressing sheet is separated from the crankshaft, so that the effect of conveniently dismounting and replacing the crankshaft is achieved.

Description

Technical Field

[0001] This utility model relates to the field of compressor piston connecting rods, specifically a piston connecting rod structure for a piston compressor. Background Technology

[0002] In industrial production and daily life, reciprocating compressors are important gas power equipment and are widely used in refrigeration, air conditioning, gas transportation and other fields. The piston connecting rod structure is the core component of the reciprocating compressor to realize the gas compression function. Its performance directly affects the working efficiency, stability and service life of the compressor. During the long-term operation of the equipment, the piston connecting rod structure may need to be maintained or replaced due to wear, failure and other reasons. The disassembly and assembly of the connecting rod is a key part of the maintenance work.

[0003] Currently, the piston connecting rod structure of common reciprocating compressors presents numerous inconveniences during disassembly and assembly. Traditional connecting rods typically employ bolt fastening or complex locating pin connections. During disassembly, maintenance personnel must use multiple tools, repeatedly tightening multiple bolts or manipulating locating pins. This cumbersome process not only consumes a significant amount of time but also easily leads to problems such as stripped bolts and jammed locating pins due to improper operation, increasing maintenance difficulty and costs. Furthermore, the complex disassembly and assembly process demands a high level of technical skill from maintenance personnel, hindering rapid repairs and routine maintenance. With the increasing demands for efficiency and convenience in equipment maintenance from industrial production, the traditional piston connecting rod structure can no longer meet practical needs. Therefore, it is necessary to design a piston connecting rod structure for reciprocating compressors to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a piston connecting rod structure for a piston compressor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a piston connecting rod structure for a piston compressor, comprising a piston compressor cylinder and a crankshaft, wherein the crankshaft is located on the right side of the piston compressor cylinder, a cylinder sleeve cavity is provided on the right side of the piston compressor cylinder, a piston is slidably connected inside the cylinder sleeve cavity, and a rotating shaft is fixedly installed on the right side of the piston by a bracket;

[0006] The crankshaft has a lower groove at the top that mates with the shaft, a pressure plate at the top of the crankshaft, an upper groove at the bottom of the pressure plate that mates with the shaft, a rod fixedly installed at the bottom of the pressure plate, the bottom end of the rod passing through the crankshaft and extending to the outside of the crankshaft, and a slot at the top of the crankshaft that mates with the rod.

[0007] Preferably, a limiting sleeve is slidably connected to the surface of the crankshaft, and the inner wall of the limiting sleeve is made of rubber and is interference-fitted with the surfaces of the crankshaft and the pressure plate, respectively.

[0008] Preferably, the crankshaft has a movable groove on its surface, and a slider is slidably connected inside the movable groove. The surface of the slider is fixedly connected to the inner side of the limiting sleeve.

[0009] Preferably, a threaded sleeve is fixedly installed on one side of the slider by opening, and a threaded rod is connected to the inside of the threaded sleeve by thread.

[0010] Preferably, both ends of the threaded rod are rotatably connected to the inner wall of the movable groove via bearing components.

[0011] Preferably, a handle is fixedly mounted on the surface of the threaded rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The piston connecting rod structure of this piston compressor, by rotating the threaded rod, drives the threaded sleeve to move, the threaded sleeve to move, the sliding block to move, the sliding block to move the limiting sleeve, after the limiting sleeve moves to the right, it no longer limits the pressure plate. At this time, the pressure plate can be pulled upward to disengage the pressure plate from the crankshaft, thereby facilitating the removal and replacement of the crankshaft.

[0014] 2. The piston connecting rod structure of this piston compressor, by providing a handle, allows the operator to easily rotate the threaded rod, improving the convenience of crankshaft removal. Furthermore, by making the inner wall of the limiting sleeve with a rubber material, the limiting sleeve will not easily move after being moved to the surface of the crankshaft and the pressure plate, thus improving the stability of the crankshaft after installation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a sectional view of the cylinder block and crankshaft structure of the piston compressor of this utility model;

[0017] Figure 3 This is a schematic diagram of the movable groove, slider, and threaded rod structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the groove, slot, and grip structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the limiting sleeve, slider, and threaded sleeve of this utility model;

[0020] Figure 6This is a schematic diagram of the pressing plate, upper groove, and insert rod structure of this utility model.

[0021] In the diagram: 1. Piston compressor cylinder; 2. Cylinder housing; 3. Piston; 4. Shaft; 5. Crankshaft; 6. Lower groove; 7. Pressure plate; 8. Upper groove; 9. Insert rod; 10. Slot; 11. Limit sleeve; 12. Movable groove; 13. Slider; 14. Threaded sleeve; 15. Threaded rod; 16. Handle. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] Please refer to Figure 1-6 As shown, this utility model provides a piston connecting rod structure for a piston compressor, including a piston compressor cylinder 1 and a crankshaft 5. The crankshaft 5 is located on the right side of the piston compressor cylinder 1. A cylinder sleeve cavity 2 is opened on the right side of the piston compressor cylinder 1. A piston 3 is slidably connected inside the cylinder sleeve cavity 2. A rotating shaft 4 is fixedly installed on the right side of the piston 3 by a bracket.

[0025] Specifically, the crankshaft 5 has a lower groove 6 at its top that mates with the rotating shaft 4. A pressure plate 7 is positioned above the crankshaft 5, and an upper groove 8 at the bottom of the pressure plate 7 mates with the rotating shaft 4. A rod 9 is fixedly installed at the bottom of the pressure plate 7, with its bottom end penetrating the crankshaft 5 and extending to the outside of the crankshaft 5. A slot 10 at the top of the crankshaft 5 mates with the rod 9. A limiting sleeve 11 is slidably connected to the surface of the crankshaft 5. A movable groove 12 is formed on the surface of the crankshaft 5, and a slider 13 is slidably connected inside the movable groove 12. The surface of the slider 13 is fixedly connected to the inner side of the limiting sleeve 11. A threaded sleeve 14 is fixedly installed on one side through an opening. A threaded rod 15 is connected to the inside of the threaded sleeve 14. Both ends of the threaded rod 15 are rotatably connected to the inner wall of the movable groove 12 through bearing components. By setting the threaded rod 15 and rotating the threaded rod 15, the threaded rod 15 rotates and drives the threaded sleeve 14 to move. The movement of the threaded sleeve 14 drives the slider 13 to move. The movement of the slider 13 drives the limiting sleeve 11 to move. After the limiting sleeve 11 moves to the right, it no longer limits the pressure plate 7. At this time, the pressure plate 7 can be pulled upward to disengage the pressure plate 7 from the crankshaft 5, thereby facilitating the removal and replacement of the crankshaft 5.

[0026] The threaded rod 15 is fixedly mounted with a handle 16. The inner wall of the limiting sleeve 11 is made of rubber and is interference-fitted with the surfaces of the crankshaft 5 and the pressure plate 7. By setting the handle 16, the operator can easily rotate the threaded rod 15, which improves the convenience of removing the crankshaft 5. Furthermore, by making the inner wall of the limiting sleeve 11 of rubber, the limiting sleeve 11 will not easily move after being moved to the surfaces of the crankshaft 5 and the pressure plate 7, which improves the stability of the crankshaft 5 after installation.

[0027] Working principle: This utility model is a piston connecting rod structure for a piston compressor. By rotating the threaded rod 15, the threaded rod 15 rotates and drives the threaded sleeve 14 to move. The movement of the threaded sleeve 14 drives the slider 13 to move. The movement of the slider 13 drives the limiting sleeve 11 to move. After the limiting sleeve 11 moves to the right, it no longer limits the pressure plate 7. At this time, the pressure plate 7 can be pulled upward to disengage it from the crankshaft 5, thereby facilitating the removal and replacement of the crankshaft 5. At the same time, by setting the handle 16, the operator can easily rotate the threaded rod 15, which improves the convenience of removing the crankshaft 5. Furthermore, by making the inner wall of the limiting sleeve 11 with rubber material, the limiting sleeve 11 will not easily move after moving to the surface of the crankshaft 5 and the pressure plate 7, which improves the stability of the crankshaft 5 after installation.

[0028] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A piston connecting rod structure for a piston compressor, comprising a piston compressor cylinder (1) and a crankshaft (5), characterized in that: The crankshaft (5) is located on the right side of the piston compressor cylinder (1). A cylinder sleeve cavity (2) is opened on the right side of the piston compressor cylinder (1). A piston (3) is slidably connected inside the cylinder sleeve cavity (2). A rotating shaft (4) is fixedly installed on the right side of the piston (3) by a bracket. The crankshaft (5) has a lower groove (6) at the top that cooperates with the shaft (4). A pressure plate (7) is provided above the crankshaft (5). The bottom of the pressure plate (7) has an upper groove (8) that cooperates with the shaft (4). A plug rod (9) is fixedly installed at the bottom of the pressure plate (7). The bottom end of the plug rod (9) passes through the crankshaft (5) and extends to the outside of the crankshaft (5). The top of the crankshaft (5) has a slot (10) that cooperates with the plug rod (9).

2. The piston connecting rod structure of a piston compressor according to claim 1, characterized in that: The crankshaft (5) is slidably connected to a limiting sleeve (11), the inner wall of which is made of rubber and is interference-fitted with the surfaces of the crankshaft (5) and the pressure plate (7).

3. The piston connecting rod structure of a piston compressor according to claim 2, characterized in that: The crankshaft (5) has a movable groove (12) on its surface. A slider (13) is slidably connected inside the movable groove (12). The surface of the slider (13) is fixedly connected to the inside of the limiting sleeve (11).

4. The piston connecting rod structure of a piston compressor according to claim 3, characterized in that: A threaded sleeve (14) is fixedly installed on one side of the slider (13) by opening, and a threaded rod (15) is threadedly connected inside the threaded sleeve (14).

5. The piston connecting rod structure of a piston compressor according to claim 4, characterized in that: Both ends of the threaded rod (15) are rotatably connected to the inner wall of the movable groove (12) via bearing components.

6. The piston connecting rod structure of a piston compressor according to claim 4, characterized in that: A handle (16) is fixedly mounted on the surface of the threaded rod (15).

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