A three-dimensional omni-directional displacement compensation spherical hinge type metal compensator

Abstract

The utility model provides a kind of three-dimensional omni-directional displacement compensation's ball hinge type metal compensator, belong to compensator technical field, including connecting assembly, including front connecting pipe, front flange plate fixedly connected in the end of front connecting pipe, fixedly connected in the inner wall of front connecting pipe bellows main body, fixedly connected in the end of bellows main body rear connecting pipe, and fixedly connected in the lateral wall of rear connecting pipe rear flange plate;Auxiliary assembly, including fixedly connected in the lateral wall of rear flange plate fixed plate, rotationally installed in the lateral wall of fixed plate adapter plate, fixedly connected in the lateral wall of adapter plate cover, and slidingly inserted in the inside of cover adjusting plate.The utility model has the beneficial effects that: the ball hinge type linkage structure of connecting assembly realizes angular deflection, radial offset and full-dimension compensation of axial telescoping, can cover all displacement types of pipeline system;Sleeve further adapts the circumferential torsional displacement of pipeline, and flow guide pipe and adjusting plate cooperate to eliminate turbulence phenomenon.

Description

Technical Field

[0001] This utility model belongs to the field of compensator technology, specifically relating to a ball joint type metal compensator for three-dimensional omnidirectional displacement compensation. Background Technology

[0002] In fields such as chemical engineering, heating networks, municipal water supply and drainage, and metallurgy, pipeline systems are prone to three-dimensional composite displacements in the axial, radial, and angular directions due to factors such as thermal expansion and contraction, foundation settlement, equipment vibration, and installation deviations. Metal compensators, as core components for absorbing pipeline displacement and alleviating stress concentration, directly determine the safety level of the pipeline system through their compensation capacity and operational stability.

[0003] The document with publication number CN2062002U discloses a multidimensional pipeline compensator including a compensator sleeve and an end connector. The end connector consists of three parts: the compensator sleeve, the connector pipe, and the positioning ring. The outer circumferential surface of the compensator sleeve opening is spherically raised, thereby forming a drum-shaped annular surface at the port. The drum-shaped annular surface and the connector pipe fitted on it form a universal joint. Therefore, the compensator of this utility model can perform multidimensional compensation.

[0004] However, most of the aforementioned metal compensators only support single axial expansion or small-angle angular deflection, lack radial displacement compensation capability, and cannot adapt to the composite displacement caused by the circumferential rotation of the pipeline. When the pipeline experiences three-dimensional displacement, the compensator cannot fully absorb the stress, leading to pipeline joint leakage and weld cracking. Summary of the Invention

[0005] The purpose of this invention is to provide a ball-joint type metal compensator for three-dimensional omnidirectional displacement compensation, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A ball-joint type metal compensator for three-dimensional omnidirectional displacement compensation, comprising: The connecting assembly includes a front connecting pipe, a front flange plate fixedly connected to the end of the front connecting pipe, a bellows body fixedly connected to the inner wall of the front connecting pipe, a rear connecting pipe fixedly connected to the end of the bellows body, and a rear flange plate fixedly connected to the side wall of the rear connecting pipe. The front connecting pipe communicates with the interior of the rear connecting pipe through the bellows body. The auxiliary components include a fixed plate fixedly connected to the side wall of the rear flange plate, an adapter plate rotatably mounted on the side wall of the fixed plate, a cover fixedly connected to the side wall of the adapter plate, and an adjustment plate slidably inserted into the inside of the cover. The adjustment plate has a through hole in its center for use with the rear connecting pipe.

[0007] In a preferred embodiment of this utility model, the front connecting pipe and the rear connecting pipe are rotatably mounted with sleeves for cooperation. One set of sleeves is hinged to a main connecting plate at its end, and the other set of sleeves is hinged to a secondary connecting plate at its end. The end of the main connecting plate is hinged to the end of the secondary connecting plate.

[0008] In a preferred embodiment of this utility model, the main connecting plate and the auxiliary connecting plate are symmetrically arranged on the side wall of the sleeve, and the main connecting plate has a rotating groove in the middle for use with the auxiliary connecting plate.

[0009] In a preferred embodiment of this utility model, the sleeve sidewall is equipped with a set screw for use with the front connecting pipe and the rear connecting pipe, and the main connecting plate and the auxiliary connecting plate are symmetrically arranged on the outside of the corrugated pipe body.

[0010] As a preferred embodiment of this utility model, the auxiliary component further includes a guide tube threadedly connected to the center of the adjustment plate, a spring fixedly connected to the side wall of the adjustment plate, and a mounting plate fixedly connected to the end of the cover. The end of the spring is fixedly connected to the inner wall of the mounting plate, and the center of the mounting plate is provided with a guide hole for use with the guide tube.

[0011] As a preferred embodiment of this utility model, a lever is slidably inserted into the side wall of the cover, the end of the lever is connected to the side wall of the adjustment plate by bolts, and the side wall of the cover is provided with a clearance groove for cooperating with the lever.

[0012] In a preferred embodiment of this utility model, the mounting plate has a guide post threadedly connected to its side wall, a slider is adapted to be installed on the middle side wall of the guide post, the end of the lever is bolted to the side wall of the slider, and the end of the fixing plate extends above the slider.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the ball-joint linkage structure of the connecting components realizes full-dimensional compensation for angular deflection, radial offset and axial expansion and contraction, which can cover all displacement types of the pipeline system; the rotation capability of the sleeve is further adapted to the circumferential torsional displacement of the pipeline, and the set screw on the side wall of the sleeve can accurately limit the rotation range of the main and auxiliary connecting plates, control the deformation of the bellows body within the design threshold, and avoid fatigue damage caused by excessive stretching or compression; the guide pipe and the adjusting plate of the auxiliary component move synchronously to maintain coaxiality with the rear connecting pipe, guide the medium to flow smoothly through the compensator along the axis, and eliminate turbulence; the spring between the adjusting plate and the mounting plate can buffer the impact of pipeline vibration and displacement adjustment, and absorb vibration energy; the spring's restoring force can also make the adjusting plate quickly return to its position; the sleeve set screw and the lever can be directly operated outside the compensator, and the compensation range and the position of the guide pipe can be adjusted without disassembly to adapt to changes in pipeline displacement conditions; the guiding structure of the guide column and the slider ensures accurate sliding of the adjusting plate, and the linkage design of the ball-joint connecting plate makes the compensator and the pipeline respond synchronously to displacement, avoiding local stress concentration. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the present invention from a downward viewing angle; Figure 3 This is a side view of the present invention. Figure 4 This is a schematic diagram of the internal structure of this utility model.

[0015] In the diagram: 100, connecting assembly; 101, front connecting pipe; 102, front flange plate; 103, bellows body; 104, rear connecting pipe; 105, rear flange plate; 106, sleeve; 107, main connecting plate; 108, secondary connecting plate; 200, auxiliary assembly; 201, fixing plate; 202, adapter plate; 203, cover; 204, adjusting plate; 205, guide pipe; 206, spring; 207, mounting plate; 208, lever; 209, guide post; 210, slider. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example

[0019] Reference Figure 1-4 This is an embodiment of the present utility model, which provides a ball-joint type metal compensator for three-dimensional omnidirectional displacement compensation, comprising: The connecting assembly 100 includes a front connecting pipe 101, a front flange plate 102 fixedly connected to the end of the front connecting pipe 101, a bellows body 103 fixedly connected to the inner wall of the front connecting pipe 101, a rear connecting pipe 104 fixedly connected to the end of the bellows body 103, and a rear flange plate 105 fixedly connected to the side wall of the rear connecting pipe 104. The front connecting pipe 101 communicates with the interior of the rear connecting pipe 104 through the bellows body 103. The auxiliary component 200 includes a fixed plate 201 fixedly connected to the side wall of the rear flange plate 105, a transition plate 202 rotatably mounted on the side wall of the fixed plate 201, a cover 203 fixedly connected to the side wall of the transition plate 202, and an adjustment plate 204 slidably inserted into the inside of the cover 203. The adjustment plate 204 has a through hole at its center for use with the rear connecting pipe 104.

[0020] The front connecting pipe 101 and the rear connecting pipe 104 are seamless metal pipes (carbon steel / stainless steel), which are connected to the external pipeline through the front flange plate 102 and the rear flange plate 105 respectively, to achieve a rigid connection between the compensator and the pipeline system. The corrugated pipe body 103 is fixed between the inner walls of the front and rear connecting pipes. It adopts a multi-layer metal corrugated structure and has the flexible deformation capability of axial expansion and contraction, angular deflection and radial offset. It is the core carrier of displacement compensation. The front and rear connecting pipes achieve internal medium communication through the corrugated pipe body. The flexible characteristics of the corrugated pipe can absorb the foundation displacement of the pipeline system and avoid pipeline stress concentration caused by rigid connection. The fixing plate 201 is fixed to the side wall of the rear flange plate 105. The adapter plate 202 is rotatably installed on the side wall of the fixing plate and can rotate around the axis of the fixing plate to adapt to the circumferential displacement of the rear connecting pipe. The cover 203 is fixed to the side wall of the adapter plate and is an open metal frame. The adjusting plate 204 is slidably inserted into the inside of the cover and has a through hole in the center that matches the rear connecting pipe 104 (the rear connecting pipe passes through the through hole) and can slide along the cover.

[0021] Specifically, the front connecting pipe 101 and the rear connecting pipe 104 are rotatably mounted with matching sleeves 106. One set of sleeves 106 is hinged to the end of a main connecting plate 107, and the other set of sleeves 106 is hinged to the end of a secondary connecting plate 108. The end of the main connecting plate 107 is hinged to the end of the secondary connecting plate 108.

[0022] Among them, the sleeve 106 is symmetrically and rotatably installed on the outer side wall of the front connecting pipe 101 and the rear connecting pipe 104, and can rotate around the axis of the connecting pipe. The side wall is equipped with a set screw to lock the relative position of the sleeve and the connecting pipe. One set of sleeve ends are hinged to the main connecting plate 107, and the other set of sleeve ends are hinged to the auxiliary connecting plate 108. The end of the main connecting plate is hinged to the end of the auxiliary connecting plate, and the main connecting plate has a rotating groove in the middle that cooperates with the auxiliary connecting plate. The two are symmetrically distributed on the outside of the corrugated pipe body to form a ball joint linkage structure.

[0023] Furthermore, the main connecting plate 107 and the auxiliary connecting plate 108 are symmetrically arranged on the side wall of the sleeve 106, and the main connecting plate 107 has a rotating groove in the middle for use with the auxiliary connecting plate 108.

[0024] The hinged joint and rotating groove design of the main and auxiliary connecting plates can realize rotational offset, which, together with the circumferential rotation of the sleeve, covers the full-dimensional displacement compensation needs of the pipeline in the axial, radial and angular directions. At the same time, it limits the deformation range of the bellows to prevent excessive stretching / compression from causing fatigue damage to the bellows.

[0025] Furthermore, the sleeve 106 is equipped with set screws on its sidewalls for use with the front connecting pipe 101 and the rear connecting pipe 104, and the main connecting plate 107 and the auxiliary connecting plate 108 are symmetrically arranged on the outside of the corrugated pipe body 103.

[0026] The set screw is used to lock the relative position of the sleeve 106 with the front connecting tube 101 and the rear connecting tube 104, and is applied to scenarios where relative stability is required.

[0027] Preferably, the auxiliary component 200 also includes a guide tube 205 threadedly connected to the center of the adjustment plate 204, a spring 206 fixedly connected to the side wall of the adjustment plate 204, and a mounting plate 207 fixedly connected to the end of the cover 203. The end of the spring 206 is fixedly connected to the inner wall of the mounting plate 207, and the center of the mounting plate 207 is provided with a guide hole for use with the guide tube 205.

[0028] The guide pipe 205 is threaded to the center of the adjusting plate 204 and coaxially arranged with the rear connecting pipe 104. It adopts a streamlined metal pipe structure and can move synchronously with the adjusting plate. It is used to guide the medium in the pipeline to flow smoothly through the compensator and avoid the medium turbulence and impact on the inner wall of the compensator caused by the deformation of the bellows. The mounting plate 207 is fixed to the end of the cover 203 and has a guide hole in the center that cooperates with the guide pipe (the guide pipe passes through the guide hole). One end of the spring 206 is fixed to the side wall of the adjusting plate 204 and the other end is fixed to the inner wall of the mounting plate 207. It is in a natural compression state and can buffer the impact force when the adjusting plate slides. At the same time, it provides the adjusting plate with the reset force to prevent the adjusting plate from shifting due to pipeline vibration.

[0029] It should be noted that a lever 208 is slidably inserted into the side wall of the cover 203. The end of the lever 208 is bolted to the side wall of the adjusting plate 204. The side wall of the cover 203 is provided with a clearance groove for use with the lever 208. A guide post 209 is threadedly connected to the side wall of the mounting plate 207. A slider 210 is fitted onto the middle side wall of the guide post 209. The end of the lever 208 is bolted to the side wall of the slider 210. The end of the fixing plate 201 extends above the slider 210.

[0030] The cover 203 has a sliding insert rod 208 on its side wall, with its end bolted to the side wall of the adjusting plate 204. The side wall of the cover has a clearance groove for the rod to slide. The side wall of the mounting plate 207 is threaded to a guide post 209. The slider 210 is fitted and installed on the middle side wall of the guide post. The end of the rod 208 is bolted to the side wall of the slider. The end of the fixing plate 201 extends above the slider. Moving the rod can drive the adjusting plate to slide along the cover. The guide post and the slider provide guidance for the rod, ensuring accurate sliding of the adjusting plate and axial displacement compensation of the connecting pipe after fitting.

[0031] In use, the compensator is connected to the pipeline system via the front flange plate 102 and the rear flange plate 105. The medium in the pipeline flows through the front connecting pipe 101, the bellows body 103, and the rear connecting pipe 104. When the pipeline experiences axial displacement due to thermal expansion and contraction, the bellows body expands and contracts axially to compensate. If the pipeline experiences radial or angular displacement, the sleeve 106 rotates synchronously with the connecting pipe, and the main connecting plate 107 and the auxiliary connecting plate 108 rotate around the hinge point (the rotation groove is adapted to the swing angle of the auxiliary connecting plate), causing the front and rear connecting pipes to make three-dimensional spatial displacement adjustments, accurately absorbing the radial / angular displacement of the pipeline. According to the designed displacement of the pipeline, the set screw on the side wall of the sleeve 106 is tightened to lock the position of the sleeve, limiting the rotation range of the main and auxiliary connecting plates, preventing the bellows body from cracking due to excessive deformation, and improving the service life of the compensator. When the rear connecting pipe rotates circumferentially with the pipeline, the adapter plate 202 rotates synchronously around the fixed plate 201, causing the cover and the adjusting plate to match the circumferential angle of the rear connecting pipe. If the rear connecting pipe has axial displacement, the lever 208 is moved, and the slider 210 slides along the guide post 209, causing the adjusting plate 204 to move along the cover 203, so that the central through hole of the adjusting plate is always in contact with the rear connecting pipe, ensuring that the guide pipe 205 is coaxial with the rear connecting pipe. When the pipeline medium flows through the compensator, the guide pipe 205 guides the medium to flow smoothly along the axis, reducing the impact of turbulence on the corrugated pipe body and reducing the noise and energy loss of the medium flow. The spring 206 buffers the sliding impact of the adjusting plate, and at the same time, when the pipeline displacement is reset, it drives the adjusting plate to return to its position, avoiding the misalignment of the guide pipe and the rear connecting pipe, which would cause medium leakage.

[0032] In summary, the ball-joint linkage structure of the connecting components achieves full-dimensional compensation for angular deflection, radial offset, and axial expansion and contraction, covering all displacement types of the pipeline system. The rotation capability of the sleeve further adapts to the circumferential torsional displacement of the pipeline, and the set screw on the side wall of the sleeve 106 can precisely limit the rotation range of the main and auxiliary connecting plates, controlling the deformation of the bellows body 103 within the design threshold and avoiding fatigue damage caused by excessive stretching or compression. The guide pipe 205 of the auxiliary component moves synchronously with the adjusting plate 204 to maintain coaxiality with the rear connecting pipe 104, guiding the medium to flow smoothly through the compensator along the axis. The system eliminates turbulence; the spring 206 between the adjusting plate 204 and the mounting plate 207 buffers the impact of pipeline vibration and displacement adjustment, absorbing vibration energy; the spring's restoring force also allows the adjusting plate to quickly return to its original position; the sleeve set screw and lever 208 can be directly operated from outside the compensator, allowing adjustment of the compensation range and guide pipe position without disassembly, adapting to changes in pipeline displacement conditions; the guiding structure of the guide column 209 and the slider 210 ensures precise sliding of the adjusting plate 204; the linkage design of the ball joint connecting plate enables the compensator and pipeline displacement to respond synchronously, avoiding local stress concentration.

[0033] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0034] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0035] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A ball-joint type metal compensator for three-dimensional omnidirectional displacement compensation, comprising a connecting assembly (100) and an auxiliary assembly (200), characterized in that: The connecting assembly (100) includes a front connecting pipe (101), a front flange plate (102) fixedly connected to the end of the front connecting pipe (101), a bellows body (103) fixedly connected to the inner wall of the front connecting pipe (101), a rear connecting pipe (104) fixedly connected to the end of the bellows body (103), and a rear flange plate (105) fixedly connected to the side wall of the rear connecting pipe (104). The front connecting pipe (101) communicates with the interior of the rear connecting pipe (104) through the bellows body (103). The auxiliary component (200) includes a fixing plate (201) fixedly connected to the side wall of the rear flange plate (105), a transition plate (202) rotatably mounted on the side wall of the fixing plate (201), a cover (203) fixedly connected to the side wall of the transition plate (202), and an adjusting plate (204) slidably inserted into the inside of the cover (203). The adjusting plate (204) has a through hole in the center that cooperates with the rear connecting pipe (104).

2. The ball-joint type metal compensator for three-dimensional omnidirectional displacement compensation according to claim 1, characterized in that: The front connecting pipe (101) and the rear connecting pipe (104) are rotatably mounted with sleeves (106) for use. One set of sleeves (106) is hinged to a main connecting plate (107) at the end, and another set of sleeves (106) is hinged to a secondary connecting plate (108) at the end. The end of the main connecting plate (107) is hinged to the end of the secondary connecting plate (108).

3. A ball-joint type metal compensator for three-dimensional omnidirectional displacement compensation according to claim 2, characterized in that: The main connecting plate (107) and the secondary connecting plate (108) are symmetrically arranged on the side wall of the sleeve (106), and the main connecting plate (107) has a rotating groove in the middle that cooperates with the secondary connecting plate (108).

4. A ball-joint type metal compensator for three-dimensional omnidirectional displacement compensation according to claim 3, characterized in that: The sleeve (106) is equipped with a set screw that works in conjunction with the front connecting pipe (101) and the rear connecting pipe (104) on its side wall. The main connecting plate (107) and the auxiliary connecting plate (108) are symmetrically arranged on the outside of the corrugated pipe body (103).

5. A ball-joint type metal compensator for three-dimensional omnidirectional displacement compensation according to claim 1, characterized in that: The auxiliary component (200) also includes a guide tube (205) threadedly connected to the center of the adjustment plate (204), a spring (206) fixedly connected to the side wall of the adjustment plate (204), and a mounting plate (207) fixedly connected to the end of the cover (203). The end of the spring (206) is fixedly connected to the inner wall of the mounting plate (207), and the center of the mounting plate (207) is provided with a guide hole that cooperates with the guide tube (205).

6. A ball-joint type metal compensator for three-dimensional omnidirectional displacement compensation according to claim 5, characterized in that: A lever (208) is slidably inserted into the side wall of the cover (203). The end of the lever (208) is connected to the side wall of the adjustment plate (204) by bolts. The side wall of the cover (203) is provided with a clearance groove that cooperates with the lever (208).

7. A ball-joint type metal compensator for three-dimensional omnidirectional displacement compensation according to claim 6, characterized in that: The mounting plate (207) has a guide post (209) threadedly connected to its side wall. A slider (210) is fitted onto the middle side wall of the guide post (209). The end of the lever (208) is bolted to the side wall of the slider (210), and the end of the fixing plate (201) extends above the slider (210).

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