Bidirectional maintenance-free rotary compensator

Abstract

The utility model relates to the technical field of compensators, in particular to a bidirectional maintenance-free rotary compensator. According to the technical scheme, the inner pipe comprises an inner pipe body structure, a cylindrical gear matching column is arranged at the position, close to the right side, of the outer cylindrical face of the inner pipe body structure, the right side of the inner pipe body structure is matched with a cylindrical variable-diameter short connecting pipe body, and the left side of the gear matching column is matched with a circumferentially-distributed steel ball structure; a limiting stable supporting column is arranged on the left side of the steel ball structure, a packing flange structure with an L-shaped section is arranged outside the inner pipe body structure and located on the left side of the limiting stable supporting column, and sealing packing is arranged between the packing flange structure and the inner pipe body structure and between the packing flange structure and the limiting stable supporting column. The expansion joint has the advantages that the overall deformation range can be effectively limited when the expansion joint is used, space adjustment can be carried out on damage of the expansion joint in the using process through the fastening assembly, the expansion joint can be conveniently maintained in a two-way disassembly-free mode, and the service life is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of compensators, in particular to a two-way maintenance-free rotary compensator. Background Art

[0002] A compensator is an important structural component for installing and connecting pipeline products. A rotary compensator is a type of compensator. The existing rotary compensator body is composed of components such as bellows, flanges, and fastening screws. During use, the bearing capacity of the compensator body structure is relatively poor, and regular maintenance is required during use. The deformation amount cannot be limited during use, and the service life during use cannot be guaranteed. Content of the Utility Model

[0003] The purpose of the utility model is to provide a two-way maintenance-free rotary compensator, which is composed of multiple cooperating pipe fittings at different positions on the inner and outer sides, combined with steel balls and sealing packing. During use, it can effectively limit the overall deformation range, and through the fastening components, it can perform spatial adjustment on the damage of the compensator during use, enabling it to achieve convenient maintenance of two-way disassembly-free maintenance, with a longer service life during use. The welding position of its main body uses V-shaped grooves in different directions for welding cooperation, and the overall welding connection strength is higher and the durability is stronger.

[0004] The technical solution of the utility model is as follows:

[0005] A two-way maintenance-free rotary compensator, characterized in that: it includes an inner pipe main body structure. A cylindrical gear matching column is provided at the position on the outer cylindrical surface of the inner pipe main body structure near the right side. A cylindrical reduced-diameter short pipe main body is fitted on the right side of the inner pipe main body structure. A circumferentially distributed steel ball structure is fitted on the left side of the gear matching column. A limiting and stable support column is provided on the left side of the steel ball structure. A packing flange structure with an L-shaped cross-section is provided on the outside of the inner pipe main body structure on the left side of the limiting and stable support column. A sealing packing is provided between the packing flange structure, the inner pipe main body structure, and the limiting and stable support column. The outside of the limiting and stable support column is connected to the compensator outer pipe main body by welding. The right side of the compensator outer pipe main body is welded and connected to the reduced-diameter short pipe main body. The left side of the compensator outer pipe main body is criss-crossed and pressed tightly with the packing flange structure. A cylindrical outer sleeve combination column is welded on the left side of the compensator outer pipe main body. The outer sleeve combination column and the packing flange structure are connected together by a fastening component. The fastening component is composed of a bolt, a nut, and a fastening gasket.

[0006] Further, the gear matching column is connected to the inner pipe main body structure by welding.

[0007] Furthermore, a welded mating combined column is provided on the outer side of the reduced-diameter short pipe body. A V-shaped welding mating groove with an opening to the right is provided on the right side of the welding mating column. A welding avoidance mating inclined surface is provided at the welding position between the welded mating combined column and the compensator outer pipe body.

[0008] Furthermore, a marking fitting groove is provided on the outer side of the compensator outer pipe body.

[0009] Furthermore, the outer cylindrical surface of the outer sleeve combined column and the outer cylindrical surface of the packing flange structure are on the outer cylindrical surface of the same diameter.

[0010] The beneficial effects of the present utility model:

[0011] The present utility model is composed of multiple mating pipe fittings at different positions on the inner and outer sides, combined with steel balls and sealing packing. During use, it can effectively limit the overall deformation range, and through the fastening assembly, it can perform spatial adjustment on the damage of the compensator during use, enabling it to achieve convenient maintenance of two-way disassembly-free maintenance, with a longer service life during use. The main body welding position uses V-shaped grooves in different directions for welding mating, with higher overall welding connection strength and stronger durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a front half-sectional schematic diagram of the present utility model;

[0013] In the figure: 1, inner pipe main body structure; 2, bolt; 3, nut; 4, fastening gasket; 5, packing flange structure; 6, outer sleeve combined column; 7, sealing packing; 8, steel ball structure; 9, compensator outer pipe body; 10, reduced-diameter short pipe body; 11, marking fitting groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] Such as Figure 1As shown in the figure, a two-way maintenance-free rotary compensator includes an inner tube main structure 1. A cylindrical gear matching column is provided at the position of the outer cylindrical surface of the inner tube main structure 1 on the right side. A cylindrical reduced-diameter short pipe main body 10 is fitted on the right side of the inner tube main structure 1. They can be fitted with different pipe materials together and are the connection structures at both ends of the compensator. A circumferentially distributed steel ball structure 8 is fitted on the left side of the gear matching column. A limiting and stable support column is provided on the left side of the steel ball structure 8, which can limit the movement structure of the compensator during use. A packing flange structure 5 with an L-shaped cross-section is provided on the outside of the inner tube main structure 1 on the left side of the limiting and stable support column. A sealing packing 7 is provided between the packing flange structure 5, the inner tube main structure 1 and the limiting and stable support column, ensuring the sealing performance of the overall connection position. The outside of the limiting and stable support column is connected to the compensator outer tube main body 9 by welding. The right side of the compensator outer tube main body 9 is welded to the reduced-diameter short pipe main body 10. The cost is lower during production and processing. Different specifications of pipeline materials can be welded for use, avoiding waste of materials. The left side of the compensator outer tube main body 9 is tightly pressed and fitted with the packing flange structure 5 in a staggered manner, enabling a staggered fusion connection effect with the welding material during welding, resulting in higher connection strength, more convenient fusion during welding, and relatively high welding efficiency. A cylindrical outer sleeve combination column 6 is welded to the left side of the compensator outer tube main body 9. The outer sleeve combination column 6 and the packing flange structure 5 are connected together by a fastening assembly. The fastening assembly consists of a bolt 2, a nut 3 and a fastening gasket 4, enabling the two main structures to be tightly combined with each other. It is composed of multiple matching pipe fittings at different positions on the inner and outer sides, combined with steel balls and sealing packing. During use, it can effectively limit the overall deformation range. And through the fastening assembly, the damage to the compensator during use can be adjusted in space, enabling it to achieve convenient maintenance of two-way disassembly-free maintenance, with a longer service life during use. The main welding position adopts V-shaped grooves in different directions for welding cooperation, with higher overall welding connection strength, stronger durability, and a wider application range during use, being able to meet the use requirements in a variety of application environments.

[0015] Preferably, the gear matching column is connected to the inner tube main structure 1 by welding, making the structural strength of the connection position higher and the cost during production and processing relatively low.

[0016] Preferably, a welding cooperation combination column is provided on the outside of the reduced-diameter short pipe main body 10. A V-shaped welding cooperation groove with an opening to the right is provided on the right side of the welding cooperation column. A welding avoidance cooperation inclined surface is provided at the welding position between the welding cooperation combination column and the compensator outer tube main body 9. During welding, the space at the welding fusion position is larger, the welding firmness is better, and the welding material is more easily fused to the welding position.

[0017] Preferably, an identification fitting groove 11 is provided on the outer side of the outer tube body 9 of the compensator, which can fit different identifications as required and ensure that the fitting does not exceed the outer side surface, thus improving the safety after fitting.

[0018] Preferably, the outer cylindrical surface of the outer sleeve combined column 6 and the outer cylindrical surface of the packing flange structure 5 are on the outer cylindrical surface of the same diameter, making the flatness of the outer structure better.

[0019] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements or substitutions can be made, and these improvements or substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A two-way maintenance-free rotary compensator, characterized in that: It includes an inner tube main body structure (1). A cylindrical gear engaging column is provided at a position on the outer cylindrical surface of the inner tube main body structure (1) near the right side. A cylindrical variable-diameter short pipe main body (10) is fitted to the right side of the inner tube main body structure (1). A circumferentially distributed steel ball structure (8) is fitted to the left side of the gear engaging column. A limiting and stable support column is provided to the left side of the steel ball structure (8). A packing flange structure (5) with an L-shaped cross-section is provided to the left side of the limiting and stable support column outside the inner tube main body structure (1). A sealing packing (7) is provided between the packing flange structure (5), the inner tube main body structure (1), and the limiting and stable support column. The outer side of the limiting and stable support column is connected to a compensator outer tube main body (9) by welding. The right side of the compensator outer tube main body (9) is welded and connected to the variable-diameter short pipe main body (10). The left side of the compensator outer tube main body (9) is staggeredly pressed and fitted to the packing flange structure (5). A cylindrical outer sleeve combined column (6) is welded to the left side of the compensator outer tube main body (9). The outer sleeve combined column (6) and the packing flange structure (5) are connected together by a fastening assembly. The fastening assembly is composed of a bolt (2), a nut (3), and a fastening gasket (4).

2. The two-way maintenance-free rotary compensator according to claim 1, characterized in that: The gear engaging column is connected to the inner tube main body structure (1) by welding.

3. The two-way maintenance-free rotary compensator according to claim 1, characterized in that: A welding fitting combined column is provided on the outer side of the variable-diameter short pipe main body (10). A V-shaped welding fitting groove with an opening to the right is provided to the right side of the welding fitting column. A welding avoidance fitting inclined surface is provided at the welding position between the welding fitting combined column and the compensator outer tube main body (9).

4. The two-way maintenance-free rotary compensator according to claim 1, characterized in that: A marking fitting groove (11) is provided on the outer side of the compensator outer tube main body (9).

5. A two-way maintenance-free rotary compensator according to claim 1, characterized in that: The outer cylindrical surfaces of the outer sleeve combined column (6) and the packing flange structure (5) are on the same outer cylindrical surface with the same diameter.

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