Sleeve pup joint compensator

Abstract

The utility model relates to the technical field of compensators, and discloses a sleeve pup joint compensator which comprises a left connecting disc and a right connecting disc, an expansion joint body is arranged between the left connecting disc and the right connecting disc, two hinge frames are arranged on the right connecting disc, and positioning frames are arranged on the two hinge frames. The upper end face and the lower end face of the positioning frame are each provided with a limiting adjusting mechanism connected to the left connecting disc. The expansion joint is simple in structure and wide in applicability, the left connecting disc and the expansion joint body can conveniently swing up and down through the hinge frame and the positioning frame, swing in other ranges is limited, and the limiting adjusting mechanism arranged on the positioning frame is matched with the left connecting disc, so that the expansion joint is convenient to adjust. The compensator body can adapt to the relative displacement of the left connecting disc and the right connecting disc in the left-right direction and the front-back direction, so that the compensator body not only can perform displacement compensation in the axial direction, but also can provide additional flexibility in the circumferential direction and the transverse direction, and the more complex space displacement requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of compensators, in particular to a casing short-circuit compensator. Background Art

[0002] Casing compensators are important devices to solve pipe deformation caused by temperature changes or mechanical vibrations. They are widely used in various pipeline transportation systems in many industrial fields, such as chemical industry and metallurgy. These compensators are mainly composed of bellows and accessories such as end pipes, brackets, flanges, and conduits, which together form a complete compensation system.

[0003] As the core part of the compensator, the bellows can effectively absorb the dimensional changes of pipelines, conduits or containers caused by thermal expansion and contraction through its own effective expansion and contraction. In addition, the sleeve compensator also has the function of reducing noise and vibration, which makes them particularly important in heating systems to prevent unnecessary deformation or damage of pipelines due to temperature increases.

[0004] However, existing casing compensators have certain limitations, that is, they can usually only expand and contract in the direction of the pipeline axis to absorb unidirectional axial displacement. This means that the adaptability of existing compensators is limited for more complex spatial displacements or multi-directional stress changes. Therefore, in the face of more demanding working conditions or more complex installation environments, new types of casing compensators need to be developed to meet the growing industrial needs and technical challenges. Utility Model Content

[0005] The purpose of the utility model is to provide a casing short-circuit compensator which has wide applicability and is convenient to be installed at any position of a pipeline in view of the above problems.

[0006] In order to achieve the above-mentioned purpose, the utility model discloses a sleeve short-circuit compensator, including a left connecting plate and a right connecting plate, and its structural feature is that an expansion joint body is arranged between the left connecting plate and the right connecting plate, and hinged frames located on the front and rear sides of the expansion joint body are respectively arranged on the connecting ends of the right connecting plate and the expansion joint body, and positioning frames arranged around the expansion joint body and swinging along the axial direction of the expansion joint body are arranged on the two hinged frames, and limit adjustment mechanisms connected to the left connecting plate are respectively arranged on the upper end face and the lower end face of the positioning frame.

[0007] After adopting the above structure, by arranging articulated frames located on both sides of the expansion joint body on the right connecting plate and hingedly connecting a positioning frame on the articulated frame, the up and down swinging of the left connecting plate and the expansion joint body can be facilitated and the swinging in other ranges can be limited. The limit adjustment mechanism arranged on the positioning frame cooperates with the left connecting plate to adapt to the relative left and right displacements of the left connecting plate and the right connecting plate, thereby realizing that the compensator can not only compensate for displacement in the axial direction, but also provide additional flexibility in the circumferential and lateral directions to adapt to more complex spatial displacement requirements.

[0008] Preferably, the expansion joint body is a bellows and the two ends of the bellows are respectively vertically fixed to the inner end surfaces of the left connection plate and the right connection plate, and the outer diameter of the expansion joint body is smaller than the diameter of the left connection plate and the right connection plate. The smaller outer diameter of the expansion joint body facilitates the installation of other mechanisms for stabilizing the expansion joint body on the two connection plates and can reasonably utilize space.

[0009] Preferably, the articulated frame is a strip plate body vertically fixed on the inner end face of the right connecting plate, and the articulated frame body is parallel to the expansion joint body connected to the right connecting plate, and the two articulated frames are symmetrical front and back along the vertical plane where the central axis of the expansion joint body is located, and a hinge interface adapted to the positioning frame is arranged on the outer end body of the articulated frame, and the hinge interface passes through the upper end face, the lower end face and the left end face of the strip plate body, and a hinge column passing through the articulated frame body and the positioning frame body is arranged at the hinge interface.

[0010] Preferably, the positioning frame is a rectangular frame structure formed by splicing multiple strip plates, the middle plate bodies of the front and rear side plates of the positioning frame are hinged at the hinge interface of the hinge frame, and the vertical planes where the front and rear side plates of the positioning frame swing are respectively the same as the vertical planes where the hinge frames on the front and rear sides of the expansion joint body are located. By cooperating with the positioning frame and the hinge frame, the left connection plate and the right connection plate can be conveniently swung up and down relative to each other, and the swing amplitude can be limited by the hinge interface, which can effectively disperse stress and protect the expansion joint body from damage.

[0011] Preferably, the limit adjustment mechanism includes a positioning ear plate fixedly connected to the left connecting plate and an adjustable ear plate arranged on the positioning frame, and the positioning ear plate and the adjustable ear plate are provided with guide columns passing through the positioning ear plate and the adjustable ear plate. Through the cooperation of the guide column and the connecting ear plate, the right connecting plate and the left connecting plate can be stably moved left and right relative to each other, and the movable range of the compensator can be effectively and accurately adjusted.

[0012] Preferably, the guide column includes a threaded column passing through the positioning ear plate and the adjustable ear plate, and the threaded column is provided with limit nuts located at both ends of the threaded column and located at the outer end surfaces of the positioning ear plate and the adjustable ear plate, and the threaded column is sleeved with a reset spring clamped between the positioning ear plate and the inner end surface of the adjustable ear plate. By setting the reset spring on the threaded column, the tension of the expansion joint body between the positioning ear plate and the adjustable ear plate can be always maintained, which not only improves the displacement compensation efficiency of the expansion joint body, but also greatly enhances the stability and durability of the entire compensator.

[0013] Preferably, the adjustable ear plate includes an ear plate body and a steering column fixedly connected to one end of the ear plate body along the length direction of the ear plate body, a spherical joint is provided at the end of the steering column, and a fixed base fixed to the positioning frame is provided at one end of the spherical joint. The ear plate body mounted on the fixed base through the spherical joint cooperates with the guide column and the positioning ear plate, so that the compensator body can absorb and adapt to displacement and vibration in the pipeline system in all directions, greatly improving the adaptability of the compensator.

[0014] Preferably, the fixed base includes a fixing column fixedly connected to the positioning frame, the fixing column having one end away from the positioning frame being screwed with a positioning column, a spherical chamber adapted to the spherical connecting joint is arranged in the body of the screwed end of the fixing column and the positioning column, a through hole connected to the spherical chamber is arranged on the outer end surface of the positioning column, and the size of the through hole is adapted to the diameter of the steering column.

[0015] To sum up, the beneficial effects of the utility model are: the utility model has a simple structure and a wide range of applicability. By arranging an articulated frame located on both sides of the expansion joint body on the right connecting plate and hingedly connecting a positioning frame on the articulated frame, the up and down swinging of the left connecting plate and the expansion joint body can be facilitated and the swinging in other ranges can be limited. The limit adjustment mechanism arranged on the positioning frame cooperates with the left connecting plate, which can adapt to the relative left and right and front and back displacements of the left and right connecting plates and the right connecting plates, thereby realizing that the compensator body can not only compensate for displacement in the axial direction, but also provide additional flexibility in the circumferential and lateral directions to adapt to more complex spatial displacement requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0018] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of the adjustable ear plate at A in the middle.

[0019] In the figure: 1. left connecting plate; 2. right connecting plate; 3. expansion joint body; 4. articulated frame; 5. positioning frame; 6. limit adjustment mechanism; 7. hinge interface; 8. articulated column; 9. positioning ear plate; 10. adjustable ear plate; 11. guide column; 12. threaded column; 13. limit nut; 14. return spring; 15. ear plate body; 16. steering column; 17. spherical connecting joint; 18. fixed base; 19. fixed column; 20. positioning column; 21. spherical chamber; 22. through hole. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0022] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0024] like Figure 1 and Figure 2 As shown, the utility model includes a left connection plate 1 and a right connection plate 2, and an expansion joint body 3 is arranged between the left connection plate 1 and the right connection plate 2. When designed, the expansion joint body 3 is a bellows and the two ends of the bellows are respectively vertically fixed on the inner end surfaces of the left connection plate 1 and the right connection plate 2, and the outer diameter of the expansion joint body 3 is smaller than the diameter of the left connection plate 1 and the right connection plate 2. In this way, the outer diameter of the expansion joint body 3 is designed to be smaller, which can facilitate the installation of other mechanisms that stabilize the expansion joint body 3 on the two connection plates, and can reasonably utilize space and adapt to the complex environment underground.

[0025] like Figure 1 and Figure 2As shown, in a preferred embodiment of the utility model, an articulated frame 4 located on the front and rear sides of the expansion joint body 3 is respectively provided on the connecting end of the right connecting disk 2 and the expansion joint body 3, and at the same time, a positioning frame 5 arranged around the expansion joint body 3 and swinging along the axial direction of the expansion joint body 3 is provided on the two articulated frames 4. When designing, the above-mentioned articulated frame 4 is a strip plate body vertically fixed on the inner end surface of the right connecting disk 2, and the main body of the articulated frame 4 is arranged parallel to the expansion joint body 3 connected to the right connecting disk 2. At the same time, the two articulated frames 4 are symmetrical front and back along the vertical surface where the central axis of the expansion joint body 3 is located. When making, a hinge port 7 for articulating the positioning frame 5 is provided on the main body of the articulated frame 4 close to the end of the left connecting disk 1, and the hinge port 7 passes through the upper end surface, the lower end surface and the left end surface of the plate body of the articulated frame 4. At the same time, a hinge column 8 is also provided at the hinge port 7, which passes through the main body of the articulated frame 4 and the main body of the positioning frame 5 and hinges the two together.

[0026] like Figure 1 and Figure 2 As shown, in another preferred embodiment of the utility model, the above-mentioned positioning frame 5 is a rectangular frame structure formed by splicing multiple strip plates, usually using 4 strip plates with a length corresponding to the left connecting plate 1 or the diameter of the left connecting plate 1, which are vertically connected at the first position and the length of each strip plate is greater than the outer diameter of the expansion joint body 3. When making, the thickness of the front and rear side plates of the positioning frame 5 is adapted to the width of the above-mentioned hinge port 7, and the depth of the hinge port 7 along the length direction of the main body of the articulated frame 4 is greater than the width of the front and rear side plates of the positioning frame 5. The middle plate body of the front and rear side plates of the above-mentioned positioning frame 5 is hinged at the hinge port 7 of the articulated frame 4 and can swing up and down, and the amplitude of the swing is controlled by the depth of the hinge port 7. When designing, the vertical planes where the front and rear side plates of the positioning frame 5 are swung are respectively the same as the vertical planes where the articulated frames 4 on the front and rear sides of the expansion joint body 3 are located. In this way, by cooperating with the positioning frame 5 and the articulated frame 4, the left connecting plate 1 and the right connecting plate 2 can be conveniently swung up and down relative to each other, and the swing amplitude can be limited by the hinge port 7, which can effectively disperse the stress and protect the expansion joint body 3 from damage.

[0027] like Figure 1 and Figure 2 as well as Figure 3As shown, in a specific embodiment of the utility model, a limit adjustment mechanism 6 connected to the left connecting plate 1 is respectively arranged on the upper end surface and the lower end surface of the positioning frame 5, and the limit adjustment mechanism 6 includes a positioning ear plate 9 fixedly connected to the left connecting plate 1 and an adjustable ear plate 10 arranged on the positioning frame 5, and a guide column 11 passing through the positioning ear plate 9 and the adjustable ear plate 10 is arranged on the positioning ear plate 9 and the adjustable ear plate 10. When designed, the positioning ear plate 9 is a baffle plate vertically fixed to the upper end or lower end of the left connecting plate 1 and a circular hole penetrating the left and right end surfaces is arranged on the baffle plate, and the adjustable ear plate 10 is provided with a guide column 11 passing through the positioning ear plate 9 and the adjustable ear plate 10. The joint ear plate 10 is arranged at the upper end or the lower end of the positioning frame 5 and a circular hole is also arranged on the adjustable ear plate 10. The circular hole on the adjustable ear plate 10 and the central axis of the circular hole of the positioning ear plate 9 are located on the same horizontal line. During manufacturing, the above-mentioned positioning ears correspond one-to-one to the adjustable ear plate 10. The adjustable ear plate 10 includes an ear plate body 15 and a steering column 16 fixedly connected to one end of the ear plate body 15 along the length direction of the ear plate body 15. A spherical connection joint 17 is arranged at the end of the steering column 16. At the same time, a fixed base 18 fixed to the positioning frame 5 is arranged at one end of the spherical connection joint 17. Usually, the fixed base 18 includes a fixed column 19 fixed to the positioning frame 5, a positioning column 20 is screwed to one end of the fixed column 19 away from the positioning frame 5, a spherical chamber 21 adapted to the spherical joint 17 is also provided in the body of the screwed end of the fixed column 19 and the positioning column 20, and a through hole 22 connected to the spherical chamber 21 is provided on the outer end surface of the positioning column 20, and the size of the through hole 22 is adapted to the diameter of the steering column 16. In this way, the ear plate body 15 installed on the fixed base 18 through the spherical joint 17 cooperates with the guide column 11 and the positioning ear plate 9, so that the compensator body can absorb and adapt to the displacement and vibration in the pipeline system in all directions, greatly improving the adaptability of the compensator.

[0028] like Figure 1 and Figure 2 As shown, in another specific embodiment of the utility model, the guide column 11 includes a threaded column 12 passing through two circular holes on the positioning ear plate 9 and the adjustable ear plate 10, and a limiting nut 13 is provided on the threaded column 12, which is located at both ends of the threaded column 12 and located at the outer end surfaces of the positioning ear plate 9 and the adjustable ear plate 10, and a reset spring 14 is also sleeved on the threaded column 12 and clamped between the inner end surfaces of the positioning ear plate 9 and the adjustable ear plate 10. In this way, through the reset spring 14 and the two limiting nuts 13, the positioning ear plate 9 and the adjustable ear plate 10 can be clamped on the threaded column 12 and reciprocate along the length direction of the threaded column 12, so that the tension of the expansion joint body 3 between the positioning ear plate 9 and the adjustable ear plate 10 can be always maintained, which not only improves the displacement compensation efficiency of the expansion joint body 3, but also greatly enhances the stability and durability of the entire compensator.

[0029] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A bushing short-circuit compensator, comprising a left connecting plate (1) and a right connecting plate (2), characterized in that: An expansion joint body (3) is arranged between the left connecting plate (1) and the right connecting plate (2), and articulated frames (4) are respectively arranged on the connecting ends of the right connecting plate (2) and the expansion joint body (3) and are located at the front and rear sides of the expansion joint body (3). Positioning frames (5) arranged around the expansion joint body (3) and swinging along the axial direction of the expansion joint body (3) are arranged on the two articulated frames (4), and limit adjustment mechanisms (6) connected to the left connecting plate (1) are respectively arranged on the upper end surface and the lower end surface of the positioning frame (5).

2. The bushing short-circuit compensator according to claim 1, characterized in that: The expansion joint body (3) is a bellows, and the two ends of the bellows are respectively vertically fixed to the inner end surfaces of the left connecting plate (1) and the right connecting plate (2), and the outer diameter of the expansion joint body (3) is smaller than the diameter of the left connecting plate (1) and the right connecting plate (2).

3. The bushing short-circuit compensator according to claim 1, characterized in that: The articulated frame (4) is a strip plate body vertically fixed to the inner end surface of the right connecting plate (2), and the main body of the articulated frame (4) is parallel to the expansion joint main body (3) connected to the right connecting plate (2). The two articulated frames (4) are symmetrical in the front and back direction along the vertical plane where the central axis of the expansion joint main body (3) is located. The outer end body of the articulated frame (4) is provided with a hinge port (7) adapted to the positioning frame (5), and the hinge port (7) passes through the upper end surface, the lower end surface and the left end surface of the strip plate body. The hinge port (7) is provided with a hinge column (8) passing through the main body of the articulated frame (4) and the main body of the positioning frame (5).

4. The bushing short-circuit compensator according to any one of claims 1 or 3, characterized in that: The positioning frame (5) is a rectangular frame structure formed by splicing a plurality of strip plates. The middle plate bodies of the front and rear side plates of the positioning frame (5) are hinged at the hinge interface (7) of the hinge frame (4). The vertical planes where the front and rear side plates of the positioning frame (5) are swung are respectively the same as the vertical planes where the hinge frames (4) on the front and rear sides of the expansion joint body (3) are located.

5. The bushing short-circuit compensator according to claim 1, characterized in that: The limit adjustment mechanism (6) comprises a positioning ear plate (9) fixedly connected to the left connecting plate (1) and an adjustable ear plate (10) arranged on the positioning frame (5), and the positioning ear plate (9) and the adjustable ear plate (10) are provided with a guide column (11) passing through the positioning ear plate (9) and the adjustable ear plate (10).

6. The bushing short-circuit compensator according to claim 5, characterized in that: The guide column (11) comprises a threaded column (12) passing through the positioning ear plate (9) and the adjustable ear plate (10); the threaded column (12) is provided with limit nuts (13) located at both ends of the threaded column (12) and located on the outer end surfaces of the positioning ear plate (9) and the adjustable ear plate (10); the threaded column (12) is sleeved with a return spring (14) clamped between the inner end surfaces of the positioning ear plate (9) and the adjustable ear plate (10).

7. The bushing short-circuit compensator according to claim 5, characterized in that: The adjustable ear plate (10) comprises an ear plate body (15) and a steering column (16) fixedly connected to one end of the ear plate body (15) along the length direction of the ear plate body (15); a spherical connection joint (17) is provided at the end of the steering column (16); and a fixed base (18) fixed to the positioning frame (5) is provided at one end of the spherical connection joint (17).

8. The bushing short-circuit compensator according to claim 7, characterized in that: The fixed base (18) comprises a fixed column (19) fixedly connected to the positioning frame (5), and one end of the fixed column (19) away from the positioning frame (5) is screwed with a positioning column (20), and a spherical chamber (21) adapted to the spherical connecting joint (17) is arranged in the body of the screwed end of the fixed column (19) and the positioning column (20), and a through hole (22) connected to the spherical chamber (21) is arranged on the outer end surface of the positioning column (20), and the size of the through hole (22) is adapted to the diameter of the steering column (16).

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