Compressor middle body

By employing a bidirectional positioning mechanism within the compressor body, the problems of time-consuming connection hole alignment and bolt fixing during assembly are solved, achieving efficient loading and unloading and stable connection, reducing equipment operating costs and the risk of vibration loosening.

CN223536499UActive Publication Date: 2025-11-11XIANGTAN ZHENDAN COMPRESSOR CO LTD
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Patent Information

Application Number
CN202422600656.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2025-11-11
Estimated Expiration
2034-10-28

AI Technical Summary

Technical Problem

The existing compressor body requires special alignment of the connection holes and a large number of bolts during assembly, which makes the loading and unloading process time-consuming and the connection stability insufficient, making it prone to loosening due to vibration.

Method used

A bidirectional positioning mechanism is adopted, including threaded grooves and magnetic adsorption blocks between the cylinder block and the assembly plate, to achieve longitudinal and lateral positioning, simplify the assembly process and enhance the connection strength.

Benefits of technology

It significantly reduces loading and unloading time and labor, improves loading and unloading efficiency, enhances connection strength, reduces the risk of loosening due to vibration, improves equipment stability and reliability, and reduces replacement frequency and operating costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a compressor middle body, which belongs to the technical field of compressors, and comprises a cylinder body, a protective barrel is sleeved on the inner side of the cylinder body, a slide way for reserving the moving stroke of a crosshead is arranged on the inner side of the protective barrel, a containing groove is arranged at the front end of the cylinder body, and an assembly disc is fixedly connected with the outer end of the protective barrel. According to the scheme, time and labor consumed in the loading and unloading process of personnel can be remarkably reduced, the operation difficulty can be lowered, the loading and unloading work efficiency can be improved, and compared with limiting in the single direction between the assembling disc and the cylinder body in the prior art, the assembling disc and the cylinder body are not limited in the single direction. The connecting strength between the assembly disc and the cylinder body is effectively enhanced, the risk of loosening of a connecting piece caused by vibration of the compressor is effectively reduced, and therefore the stability and reliability of equipment are improved, and finally the effects of reducing the replacement frequency of the protection barrel and reducing the use cost of the equipment are achieved.
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Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and more specifically, to a compressor body. Background Technology

[0002] The compressor body mainly consists of a cylinder and a slide rail inside the cylinder. The slide rail is the part that bears the reciprocating motion of the compressor crosshead. As the crosshead moves at high speed and rubs repeatedly in the slide rail, the inner wall of the slide rail wears down, which increases the gap between the crosshead and the slide rail, causing the compressor body to vibrate and even damage the machine body.

[0003] Chinese utility model patent with announcement number CN221823990U discloses "a protective structure and a middle body". It sets the cylinder and slide of the existing compressor middle body as a detachable connection between the cylinder and the protective structure, and sets a channel on the protective structure that can replace the slide. When the channel is worn, only the protective structure needs to be replaced, thereby reducing the operating cost of the equipment.

[0004] In practical applications, the aforementioned patents also have the following problems: Firstly, a large number of bolts are required for fixing the protective structure and the cylinder during assembly. The protective structure must first be rotated to align with the connecting holes on the cylinder, and then the fasteners must be installed one by one, making the assembly and disassembly process time-consuming. Secondly, the connection between the protective structure and the cylinder in the aforementioned patent is limited to a single direction. Since the compressor continuously vibrates during operation, the connection between the protective structure and the cylinder is relatively prone to loosening, resulting in insufficient stability. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a compressor body that effectively avoids the problems of needing to specifically align the connecting holes and use a large number of bolts to fix the assembly plate and cylinder during the assembly process. This significantly reduces the time and labor spent by personnel during loading and unloading, reduces the difficulty of operation, and improves the efficiency of loading and unloading. Compared with the previous single-direction limitation between the assembly plate and cylinder, it effectively enhances the connection strength between the assembly plate and cylinder, effectively reduces the risk of loosening of the connecting parts due to compressor vibration, thereby improving the stability and reliability of the equipment, and ultimately achieving the effect of reducing the frequency of protective cylinder replacement and reducing equipment operating costs.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A compressor body includes a cylinder, with a protective sleeve fitted inside the cylinder. The protective sleeve has a slide rail on its inner side for pre-drilling the travel of a crosshead. A receiving groove is formed at the front end of the cylinder. An assembly plate is fixedly connected to the outer end of the protective sleeve. The assembly plate and the receiving groove are movably connected. A bidirectional positioning mechanism is provided between the cylinder and the assembly plate. The bidirectional positioning mechanism includes a pair of threaded grooves symmetrically distributed on the surface of the receiving groove. A pair of threaded holes with specifications matching the threaded grooves are formed on the assembly plate. Longitudinal positioning between the cylinder and the assembly plate is achieved by mounting fastening bolts at the threaded grooves and threaded holes. A pair of threaded holes distributed on the front end of the cylinder are also provided. The accommodating groove has opening positioning grooves and limiting grooves on both sides, which are interconnected. Positioning blocks are fixedly connected to both ends of the assembly plate. The positioning blocks have interconnected sliding grooves one and two. A slider is slidably connected in sliding groove one. An adsorption block one is embedded in the inner end of the slider. An adsorption block two is embedded in the inner bottom end of the limiting groove. A connecting rod is fixedly connected to the front end of the slider. The connecting rod passes through sliding groove two and is slidably connected to sliding groove two. An adjusting block is fixedly connected to the end of the connecting rod away from the slider. The lateral limiting between the cylinder and the assembly plate is achieved by the slider part being located in sliding groove one and the other part sliding into the limiting groove.

[0010] Furthermore, both adsorption block one and adsorption block two are made of magnetic material, and the magnetic poles of the two adjacent ends are opposite.

[0011] Furthermore, both the opening positioning groove and the limiting groove are parallelogram-shaped grooves, and the diameter of the limiting groove is half that of the opening positioning groove.

[0012] Furthermore, the shape of the positioning block and the size of its connecting surface are matched with the opening positioning groove, and the shape of the slider and the size of its connecting surface are matched with the limiting groove.

[0013] Furthermore, the outer surface of the slider is coated with a smooth coating that matches its shape.

[0014] Furthermore, the outer end of the adjusting block is fitted with a rubber layer that matches its shape, and the rubber layer is engraved with anti-slip texture.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) This solution can effectively avoid the problem that the assembly plate and cylinder block need to be aligned with the connection holes and a large number of bolts are needed to fix them during the assembly process. It can significantly reduce the time and labor consumed by personnel during loading and unloading, reduce the difficulty of operation, and improve the efficiency of loading and unloading.

[0018] (2) Compared with the previous single-direction limit between the assembly plate and the cylinder, the bidirectional positioning mechanism in this solution effectively enhances the connection strength between the assembly plate and the cylinder, effectively reduces the risk of loosening of the connecting parts due to compressor vibration, thereby improving the stability and reliability of the equipment, and ultimately achieving the effect of reducing the replacement frequency of the protective cylinder and reducing the cost of equipment use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure between the protective cylinder, the assembly plate, and the positioning block in this utility model;

[0020] Figure 2 This is a schematic diagram of the structure between the slider, connecting rod, and adjusting block in this utility model;

[0021] Figure 3 This is a front sectional view of the present invention;

[0022] Figure 4 This is a side sectional view of the present invention.

[0023] Explanation of the labels in the diagram:

[0024] 1. Cylinder body; 101. Receiving groove; 102. Threaded groove; 103. Opening positioning groove; 104. Limiting groove; 2. Protective cylinder; 201. Slide rail; 3. Assembly plate; 301. Threaded hole; 4. Fastening bolt; 5. Positioning block; 501. Slide groove one; 502. Slide groove two; 6. Sliding block; 7. Adsorption block one; 8. Adsorption block two; 9. Connecting rod; 10. Adjusting block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1:

[0029] Please see Figure 1-4 A compressor body includes a cylinder 1, a protective sleeve 2 is sleeved on the inner side of the cylinder 1, a slide 201 for reserving the movement stroke of the crosshead is provided on the inner side of the protective sleeve 2, a receiving groove 101 is opened at the front end of the cylinder 1, an assembly plate 3 is fixedly connected to the outer end of the protective sleeve 2, the assembly plate 3 and the receiving groove 101 are movably connected, and a bidirectional positioning mechanism is provided between the cylinder 1 and the assembly plate 3.

[0030] Please see Figure 3-4 The bidirectional positioning mechanism includes a pair of threaded grooves 102 symmetrically distributed on the surface of the receiving groove 101. The assembly plate 3 is provided with a pair of threaded holes 301 whose specifications match the threaded grooves 102. The longitudinal limit between the cylinder body 1 and the assembly plate 3 is achieved by mounting fastening bolts 4 at the threaded grooves 102 and the threaded holes 301.

[0031] Please see Figure 1-3The front end of the cylinder body 1 is also provided with a pair of open positioning grooves 103 and limiting grooves 104 distributed on the left and right sides of the receiving groove 101. The open positioning grooves 103 and limiting grooves 104 are interconnected. Positioning blocks 5 are fixedly connected to both ends of the assembly plate 3. The positioning blocks 5 are provided with interconnected sliding grooves 1 501 and 2 502. Sliding groove 1 501 is located at the end of the positioning block 5 near the limiting groove 104, and sliding groove 2 502 is located on the front side wall of the positioning block 5. A slider 6 is slidably connected in sliding groove 1 501. An adsorption block 7 is embedded in the inner end of the slider 6. The limiting groove 104 An adsorption block 8 is embedded in the inner bottom. Both adsorption blocks 7 and 8 are made of magnetic material, and their magnetic poles are opposite at their closest points. The opening positioning groove 103 and the limiting groove 104 are both parallelogram-shaped grooves, and the diameter of the limiting groove 104 is half that of the opening positioning groove 103. The shape and dimensions of the positioning block 5 and the connecting surface are matched with the opening positioning groove 103. The shape and dimensions of the slider 6 and the connecting surface are matched with the limiting groove 104. When assembling the protective cylinder 2, the assembly plate 3 is placed in the receiving groove 101 and the positioning block 5 is aligned with the opening. The positioning groove 103 is positioned accordingly. After the positioning block 5 is aligned with the open positioning groove 103, the threaded groove 102 and the two holes of the threaded hole 301 will also automatically align. At the same time, the slider 6 will automatically move towards the side closer to the limiting groove 104 under the influence of the magnetic attraction between the first adsorption block 7 and the second adsorption block 8. The outer surface of the slider 6 is coated with a smooth coating that matches its shape. The smooth coating is used to reduce the friction when the slider 6 slides left and right along the limiting groove 104 and the sliding groove 501, which greatly reduces the difficulty of loading and unloading the assembly plate 3 and the cylinder 1. The front end of the slider 6 is fixedly connected to a connecting... Rod 9, connecting rod 9 is set through the second slide groove 502 and is slidably connected to the second slide groove 502. An adjusting block 10 is fixedly connected to the end of the connecting rod 9 away from the slider 6. Moving the adjusting block 10 causes the connecting rod 9 and the slider 6 to move left and right. The outer end of the adjusting block 10 is fitted with a rubber layer that matches its shape. The rubber layer is engraved with anti-slip texture to increase the friction between the personnel's hands and the adjusting block 10, making it easier for the personnel to disassemble the assembly plate 3. The lateral limit between the cylinder body 1 and the assembly plate 3 is achieved by the slider 6 being partially located in the first slide groove 501 and the other part sliding into the limiting groove 104.

[0032] Compared with existing technologies, this solution effectively avoids the problems of needing to specifically align the connecting holes and use a large number of bolts to fix the assembly plate 3 and cylinder 1 during the assembly process. It can significantly reduce the time and labor spent by personnel during loading and unloading, reduce the difficulty of operation, and improve the efficiency of loading and unloading. Compared with the single-direction limit between the assembly plate 3 and cylinder 1 in the previous solution, the bidirectional positioning mechanism in this solution effectively enhances the connection strength between the assembly plate 3 and cylinder 1, effectively reduces the risk of loosening of the connecting parts due to compressor vibration, thereby improving the stability and reliability of the equipment, and ultimately achieving the effect of reducing the replacement frequency of the protective cylinder 2 and reducing the cost of equipment use.

[0033] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A compressor body, comprising a cylinder (1), wherein a protective sleeve (2) is sleeved on the inner side of the cylinder (1), and a slide (201) for reserving the travel of the crosshead is provided on the inner side of the protective sleeve (2), characterized in that: The front end of the cylinder (1) is provided with a receiving groove (101), and the outer end of the protective cylinder (2) is fixedly connected with an assembly plate (3). The assembly plate (3) and the receiving groove (101) are movably connected, and a bidirectional positioning mechanism is provided between the cylinder (1) and the assembly plate (3). The bidirectional positioning mechanism includes a pair of threaded grooves (102) symmetrically distributed on the surface of the receiving groove (101). The assembly plate (3) is provided with a pair of threaded holes (301) whose specifications match the threaded grooves (102). The longitudinal positioning between the cylinder (1) and the assembly plate (3) is achieved by mounting fastening bolts (4) at the threaded grooves (102) and the threaded holes (301). The front end of the cylinder (1) is provided with a pair of open positioning grooves (103) and limiting grooves (104) distributed on the left and right sides of the receiving groove (101). The open positioning grooves (103) and limiting grooves (104) are interconnected. The left and right ends of the assembly plate (3) are fixedly connected with positioning blocks (5). The positioning blocks (5) are provided with a sliding groove one (501) and a sliding groove two (502) that are interconnected. A slider (6) is slidably connected in the sliding groove one (501). An adsorption block is embedded in the inner end of the slider (6). 1 (7), an adsorption block 2 (8) is embedded in the inner bottom end of the limiting groove (104), a connecting rod (9) is fixedly connected to the front end of the slider (6), the connecting rod (9) is set through the sliding groove 2 (502) and is slidably connected to the sliding groove 2 (502), an adjusting block (10) is fixedly connected to the end of the connecting rod (9) away from the slider (6), and the lateral limiting between the cylinder (1) and the assembly plate (3) is achieved by the slider (6) being partially located in the sliding groove 1 (501) and the other part sliding into the limiting groove (104).

2. The compressor body according to claim 1, characterized in that: Both adsorption block one (7) and adsorption block two (8) are made of magnetic material, and the magnetic poles of the two are opposite at their closest ends.

3. The compressor body according to claim 1, characterized in that: The opening positioning groove (103) and the limiting groove (104) are both parallelogram-shaped grooves, and the diameter of the limiting groove (104) is half that of the opening positioning groove (103).

4. The compressor body according to claim 3, characterized in that: The shape and dimensions of the positioning block (5) are matched with the opening positioning groove (103), and the shape and dimensions of the slider (6) are matched with the limiting groove (104).

5. The compressor body according to claim 4, characterized in that: The outer surface of the slider (6) is coated with a smooth coating that matches its shape.

6. The compressor body according to claim 1, characterized in that: The outer end of the adjusting block (10) is fitted with a rubber layer that matches its shape, and the rubber layer is engraved with anti-slip texture.

Citation Information

Patent Citations

  • Protective structure and midbody

    CN221823990U