Compressor piston supporting ring

Abstract

The utility model relates to the technical field of supporting rings, and discloses a compressor piston supporting ring which comprises a ring body, an empty groove is formed in the surface of the ring body, an opening is formed in the surface of the ring body, the two ends of the opening of the ring body are fixedly connected with fixing blocks, and the fixing blocks are fixedly connected with the empty groove. A connecting structure is arranged between the two fixing blocks, a buffer pad is fixedly installed between the inner walls of the empty grooves, protective layers are sequentially arranged on the surface of the ring body, the connecting structure comprises a plurality of dovetail blocks fixedly connected to one fixing block, a plurality of dovetail grooves are formed in the surface of the other fixing block, and the dovetail grooves are communicated with the dovetail blocks. When the supporting ring is used, thermal expansion and cold contraction of the ring body can be buffered to a certain degree, the ring body is convenient to install, meanwhile, the supporting ring has good stability, falling and warping are avoided, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of support rings, in particular to a support ring for a compressor piston. Background Art

[0002] As an essential device in petrochemical production, a compressor needs to operate continuously and stably for a relatively long time to meet the process requirements. As a common and vulnerable part in the compressor, the reliability of the support ring severely restricts the further improvement of production efficiency. The traditional support ring expands when heated during operation, increasing the contact with the cylinder wall, that is, increasing friction, and the wear rate of the support ring is high. Therefore, there are defects that are not convenient to use.

[0003] A support ring for a reciprocating piston compressor with the publication number of CN 214787881 U includes an inner ring. The outer surface of the inner ring is fixedly provided with an outer ring. The outer surface of the inner ring is evenly provided with first limiting grooves, and the inner surface of the outer ring is evenly provided with second limiting grooves that cooperate with the first limiting grooves. By setting the inner ring and the outer ring, the support ring is formed. By setting the first limiting grooves, the second limiting grooves and the compression springs, when the inner ring expands due to heat, it can squeeze the compression springs. Because there is a gap between the inner ring and the outer ring, when the inner ring expands, it blocks the gap, so that the overall expansion degree of the inner ring after expansion is reduced. By setting the high-temperature resistant layer, the high-temperature resistant effect of the outer ring can be improved. By setting the heat insulation layer, the heat insulation effect of the outer ring can be improved. By setting the wear-resistant layer, the wear resistance of the outer ring can be improved. By setting the above structures, the support ring has the advantage of being convenient to use during use, thus reducing the labor intensity of the staff.

[0004] However, there are still some deficiencies in the above support ring during use. The buffer effect is poor and the stability is not good through the spring for buffering. Moreover, the spring is not convenient for installation and use. At the same time, the ring body is not convenient for installation. If an opening is made, it will affect the overall performance, and the opening cannot be fixed, and it is easy to fall off and warp. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a support ring for a compressor piston, which solves the problems of poor buffer effect, insufficient stability through the spring for buffering, inconvenient installation and use of the spring, inconvenient installation of the ring body, affecting the overall performance if an opening is made, inability to fix the opening, and easy to fall off and warp.

[0006] The present utility model provides the following technical solutions: A compressor piston support ring, including a ring body, wherein empty grooves are formed on the surface of the ring body, an opening is formed on the surface of the ring body, both ends of the opening of the ring body are fixedly connected with fixing blocks, a connecting structure is arranged between the two fixing blocks, a buffer pad is fixedly installed between the inner walls of the empty grooves, and a protective layer is sequentially arranged on the surface of the ring body.

[0007] Preferred technical solution one: The connecting structure includes a plurality of dovetail blocks fixedly connected to one of the fixing blocks, and a plurality of dovetail grooves are formed on the surface of the other fixing block, and the dovetail grooves match the dovetail blocks.

[0008] This solution can conveniently connect both ends of the opening of the ring body, making its stability better.

[0009] Preferred technical solution two: The connecting structure includes connecting blocks fixedly connected to the two fixing blocks, a plurality of fixed insertion balls are fixedly connected to the surface of one of the connecting blocks, and a slot is formed on the surface of the other connecting block, and the slot is in interference fit with the fixed insertion balls.

[0010] This solution can conveniently connect both ends of the opening of the ring body, making its stability better.

[0011] Preferred technical solution three: The two connecting blocks are staggered from each other, and the thickness of the two connecting blocks stacked together is the same as the thickness of the ring body.

[0012] This solution can make the surfaces of the two connecting blocks flush with the surface of the ring body, avoiding protrusions.

[0013] Preferred technical solution four: The protective layer includes a high-temperature resistant layer, a heat insulation layer, and a wear-resistant layer sequentially arranged on the surface of the ring body.

[0014] This solution can enhance the performance of the ring body, making it convenient to use.

[0015] Preferred technical solution five: The ring body is made of PEEK material, and the buffer pad is wavy.

[0016] This solution can buffer the thermal expansion and contraction of the ring body through the wavy buffer pad.

[0017] Compared with the prior art, the utility model provides a compressor piston support ring, which has the following beneficial effects: the buffer pad provided has a certain buffering effect and can always be closely attached to the piston. At the same time, through the opening, it is convenient to socket the support ring on the piston. At the same time, through the provided connection structure, the two ends of the ring body can be fixedly connected, making it stable while being convenient to install, and there will be no accidental detachment or warping. During installation, by inserting the dovetail block on one side of the opening of the ring body into the internal dovetail groove on the other side, the opening ends of the ring body are fixedly connected and closed. At the same time, it can also be fixed by inserting the fixed insertion ball on one connection block into the slot on the other connection block. There are multiple fixing methods, which are convenient to use. When the support ring is in use, it can buffer the thermal expansion and contraction of the ring body, and while being convenient to install the ring body, it also has good stability, avoiding detachment and warping, and is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a structural schematic diagram of the utility model;

[0019] Figure 2 is a structural schematic diagram of the dovetail block and dovetail groove of the connection structure of the utility model;

[0020] Figure 3 is a structural schematic diagram of the fixed insertion ball and slot of the connection structure of the utility model.

[0021] In the figure: 1, ring body; 2, empty groove; 3, opening; 4, connection structure; 5, buffer pad; 6, protective layer; 7, fixed block; 8, dovetail block; 9, dovetail groove; 10, connection block; 11, fixed insertion ball; 12, slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Please refer to Figures 1-3 ,

[0023] Embodiment 1: A compressor piston support ring includes a ring body 1. An empty groove 2 is formed on the surface of the ring body 1. An opening 3 is formed on the surface of the ring body 1. Fixed blocks 7 are fixedly connected to both ends of the opening 3 of the ring body 1. A connection structure 4 is arranged between the two fixed blocks 7. A buffer pad 5 is fixedly installed between the inner walls of the empty groove 2. A protective layer 6 is sequentially arranged on the surface of the ring body 1.

[0024] Embodiment 2: The difference between this embodiment and Embodiment 1 is that, among them, the connection structure 4 includes a plurality of dovetail blocks 8 fixedly connected to one of the fixed blocks 7. A plurality of dovetail grooves 9 are formed on the surface of the other fixed block 7. The dovetail grooves 9 match the dovetail blocks 8, which is convenient to connect the two ends of the opening of the ring body 1 and makes it more stable.

[0025] Embodiment Three: The difference between this embodiment and Embodiment One is that the connecting structure 4 includes a connecting block 10 fixedly connected to two fixing blocks 7. A plurality of fixing balls 11 are fixedly connected to the surface of one connecting block 10, and a slot 12 is formed on the surface of the other connecting block 10. The slot 12 and the fixing balls 11 are in interference fit, which facilitates connecting the two ends of the opening of the ring body 1 and makes its stability better.

[0026] Embodiment Four: The difference between this embodiment and Embodiment One is that the two connecting blocks 10 are staggered from each other, and the thickness of the two overlapping connecting blocks 10 is the same as the thickness of the ring body 1, so that the surfaces of the two connecting blocks 10 are flush with the surface of the ring body 1 to avoid protrusions.

[0027] Embodiment Five: The difference between this embodiment and Embodiment One is that the protective layer 6 includes a high-temperature resistant layer, a heat insulation layer, and a wear-resistant layer sequentially arranged on the surface of the ring body 1, which enhances the performance of the ring body 1 and makes it convenient to use.

[0028] Embodiment Six: The difference between this embodiment and Embodiment One is that the ring body 1 is made of PEEK material, and the buffer pad 5 is wavy. The wavy buffer pad 5 has a buffering effect on the thermal expansion and contraction of the ring body 1.

[0029] In summary, for this compressor piston support ring, the provided buffer pad 5 has a certain buffering effect and can always closely adhere to the piston. At the same time, through the opening 3, it is convenient to sleeved the support ring on the piston. Also, through the provided connecting structure 4, the two ends of the ring body 1 can be fixedly connected, making it convenient to install and stable, and preventing accidental detachment and warping. During installation, by inserting the dovetail block 8 on one side of the opening 3 of the ring body 1 into the dovetail groove 9 on the other side, the two ends of the opening of the ring body 1 are fixedly connected and closed. At the same time, it can also be fixed by inserting the fixing balls 11 on one connecting block 10 into the slots 12 on the other connecting block 10. With multiple fixing methods, it is convenient to use. When in use, this support ring can buffer the thermal expansion and contraction of the ring body to a certain extent, and while being convenient to install the ring body, it also has good stability, avoiding detachment and warping, and is easy to use.

Claims

1. A compressor piston support ring, comprising a ring body (1), characterized in that: The surface of the ring body (1) is provided with an empty groove (2), the surface of the ring body (1) is provided with an opening (3), both ends of the opening (3) of the ring body (1) are fixedly connected with fixing blocks (7), a connecting structure (4) is arranged between the two fixing blocks (7), a buffer pad (5) is fixedly installed between the inner walls of the empty groove (2), and a protective layer (6) is sequentially arranged on the surface of the ring body (1).

2. The compressor piston support ring according to claim 1, characterized in that: The connecting structure (4) includes a plurality of dovetail blocks (8) fixedly connected to one of the fixing blocks (7), a plurality of dovetail grooves (9) are formed on the surface of the other fixing block (7), and the dovetail grooves (9) are matched with the dovetail blocks (8).

3. The compressor piston support ring according to claim 1, wherein: The connecting structure (4) includes a connecting block (10) fixedly connected to the two fixing blocks (7), a plurality of fixed insertion balls (11) are fixedly connected to the surface of one of the connecting blocks (10), a slot (12) is formed on the surface of the other connecting block (10), and the slot (12) and the fixed insertion balls (11) are in interference fit with each other.

4. A compressor piston support ring according to claim 3, characterized in that: The two connecting blocks (10) are staggered from each other, and the thickness of the superposition of the two connecting blocks (10) is the same as the thickness of the ring body (1).

5. A compressor piston support ring according to claim 1, characterized in that: The protective layer (6) includes a high-temperature resistant layer, a heat-insulating layer, and a wear-resistant layer sequentially arranged on the surface of the ring body (1).

6. The compressor piston support ring according to claim 1, characterized in that: The ring body (1) is made of PEEK material, and the buffer pad (5) is wavy.

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