Self-adaptive centering support for steam turbine pipeline flange

Abstract

The steam turbine pipeline flange self-adaptive centering support comprises a telescopic base, a first supporting seat, an adjusting assembly, a limiting assembly and a rotary driving assembly, the other end, in the first direction, of the first supporting seat is used for supporting a pipeline, the adjusting assembly comprises a bottom support and a mounting shell part, and the mounting shell part is rotationally arranged on the bottom support; the limiting assembly comprises a driving part and a telescopic rod, one end of the telescopic rod is arranged on the mounting shell, the other end of the telescopic rod is used for being inserted into a hole of the flange plate, the driving part is connected with the telescopic rod to drive the telescopic rod to stretch out and draw back, and the rotary driving assembly is connected with the mounting shell. By means of the centering support, high precision in the butt joint process is guaranteed, potential safety hazards such as poor pipeline sealing and medium leakage caused by inaccurate centering are reduced, automatic alignment of holes of a flange plate is achieved, traditional manual visual inspection and manual adjustment modes are eliminated, the problem of hole position deviation is effectively solved, and the production efficiency is improved. And therefore, stable operation of the steam turbine unit is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of auxiliary equipment for steam turbine pipeline installation, and specifically to a self-adaptive centering support for steam turbine pipeline flanges. Background Technology

[0002] In the installation of steam turbine pipelines, precise flange alignment is a crucial step in ensuring pipeline sealing performance and operational safety.

[0003] In related technologies, the alignment of flange threaded holes mainly relies on manual adjustment. Operators need to repeatedly pry the pipe or rotate the flange and visually align the holes. During this process, due to the differences in the threaded hole spacing of different flange models, existing auxiliary tools are difficult to adapt quickly and need to be frequently replaced or adjusted. At the same time, manual rotation alignment has low accuracy and is prone to hole position deviation, which leads to difficulties in bolt installation. Moreover, the alignment process is time-consuming and labor-intensive. Especially in the installation of large pipelines, the efficiency of manual operation is extremely low, and inaccurate alignment can easily cause pipeline sealing problems, media leakage and other hidden dangers, affecting the stable operation of the turbine unit. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] To address this issue, embodiments of the present invention propose an adaptive alignment bracket for turbine pipeline flanges, which solves the problems in the prior art where flange thread hole alignment relies on manual adjustment, resulting in poor adaptability, low precision, low efficiency, and potential safety hazards.

[0006] An embodiment of the present invention provides a self-adaptive centering support for a steam turbine pipeline flange, comprising a telescopic base, a first support, an adjusting component, a limiting component, and a rotary drive component. The telescopic base has a movable platform in a first direction; one end of the first support in the first direction is disposed on the movable platform, and the other end of the first support in the first direction is used to support a pipeline, the end of which has a flange; the adjusting component includes a bottom support and a mounting shell, the bottom support being disposed on the movable platform and located between the flange and the first support, and the mounting shell being rotatably disposed on the bottom support; the limiting component includes a drive member and a telescopic rod, one end of the telescopic rod in a second direction being disposed on the mounting shell, and the other end of the telescopic rod in the second direction being used to insert into a hole in the flange, the drive member being disposed on the movable platform and connected to the telescopic rod to drive the telescopic rod to extend and retract, the second direction being perpendicular to the first direction; the rotary drive component being disposed on the movable platform and connected to the mounting shell to drive the mounting shell to rotate.

[0007] The alignment bracket of this invention achieves the fixation of the flange and mounting housing of the first pipeline by precisely inserting the telescopic rod into the hole of the flange of the first pipeline. The rotation drive component drives the flange to rotate stably, ensuring high precision in the docking process and reducing safety hazards such as poor pipeline sealing and media leakage caused by misalignment. It realizes automatic alignment of the 2001 hole of the flange, eliminating the need for traditional manual observation and adjustment, effectively avoiding hole position deviation problems, and thus ensuring the stable operation of the steam turbine unit.

[0008] In some embodiments, the telescopic rod includes an outer sleeve, a rod body, a first elastic element, and an air outlet. The outer sleeve is connected to the mounting housing. One end of the rod body is slidably disposed within the outer sleeve, and the other end of the rod body is used to insert into a hole in the flange. The first elastic element is disposed within the outer sleeve and connects the rod body and the outer sleeve to generate a force on the rod body toward the mounting housing. The air outlet is disposed on the outer sleeve. The driving member includes an air inlet and an air inlet pipe. The air inlet is disposed on the moving platform, and the air inlet pipe connects the air inlet and the outer sleeve so that the air inlet can intake air into the outer sleeve through the air inlet pipe.

[0009] In some embodiments, the air intake component includes a housing, a piston, and a second elastic member. The housing is disposed on the movable platform, one end of the housing is connected to the air intake pipe, the piston is movably disposed within the housing, and the second elastic member connects the housing and the piston to form a force on the piston away from the one end of the housing.

[0010] The first support base is provided with a cavity, a first opening and a second opening. The cavity has the first opening at one end in the first direction, and the cavity has the second opening on the side adjacent to the housing in the second direction. The other end of the housing is in communication with the second opening.

[0011] The turbine pipeline flange adaptive centering support further includes a pressing assembly, which is movably disposed within the cavity and has an initial position and a pressing position. In the initial position, a portion of the pressing assembly is located outside the cavity and is used to abut against the pipeline. In the pressing position, a portion of the pressing assembly is located within the second opening and pushes the piston to compress the first elastic element to allow air to enter the outer sleeve through the air inlet pipe.

[0012] In some embodiments, the first support base is provided with a first groove extending along the first direction, the first groove being located on the side of the cavity facing away from the housing in the second direction;

[0013] The pressing assembly includes a pressing rod, a push block, a third elastic element, a pull rod, a limiting shell, and a fourth elastic element. The pressing rod is slidably disposed in the cavity in the first direction. The pull rod passes through the first sliding groove. The limiting shell is disposed at the end of the pressing rod opposite to the first opening. A portion of the push block is slidably disposed in the limiting shell along the second direction. The push block is connected to the pull rod. The third elastic element connects the push block and the limiting shell to form a force on the push block toward the piston. The fourth elastic element connects the first support seat and the pressing rod to form a force on the pressing rod toward the first opening.

[0014] In the initial position, one end of the pressure rod is located outside the cavity and abuts against the pipe, and the push block is located inside the cavity and abuts against the other end of the pressure rod in the first direction. In the pressing position, one end of the pressure rod is located inside the first opening, and the push block is located in the second opening and abuts against the piston.

[0015] In some embodiments, the air outlet component includes an air outlet pipe, a trapezoidal plug, and a push rod. One end of the air outlet pipe is connected to the outer sleeve. The inner cavity of the air outlet pipe is provided with a trapezoidal air groove. The trapezoidal plug is inserted into the inner cavity of the trapezoidal air groove. The push rod is fixedly installed at the open end of the air outlet pipe via the trapezoidal plug.

[0016] In some embodiments, the mounting housing includes an arc-shaped housing, an arc-shaped plate, a first sliding rod, and fasteners. The arc-shaped housing is rotatably mounted on the bottom bracket and has an arc-shaped cavity. The arc-shaped plate is slidably mounted in the arc-shaped cavity and concentrically arranged with the arc-shaped housing. At least one end of the arc-shaped plate extends out of the arc-shaped cavity. The arc-shaped housing is provided with a second sliding groove that extends radially along the arc-shaped housing. The arc-shaped plate is provided with an arc-shaped groove that corresponds to the second sliding groove. The first sliding rod passes through the arc-shaped groove and the second sliding groove and is fixedly connected to the outer sleeve. The fasteners connect the arc-shaped housing and the arc-shaped plate.

[0017] In some embodiments, the arc-shaped housing is provided with a third sliding groove, the third sliding groove extending radially along the arc-shaped housing, and the third sliding groove corresponding to the arc-shaped groove.

[0018] The mounting housing further includes a push plate, a second slide rod, and an adjusting rod. The push plate is located on the side of the arc-shaped plate opposite to the telescopic rod. The push plate is provided with a fourth slide groove, which corresponds to the second slide groove. The second slide rod passes through the fourth slide groove, the arc-shaped groove, and the third slide groove. One end of the second slide rod is connected to the push rod, and the other end of the second slide rod is provided with a protrusion that abuts against the side of the push plate opposite to the arc-shaped housing. The arc-shaped housing is provided with a threaded hole. The adjusting rod is rotatably provided on the push plate and is fitted into the threaded hole of the arc-shaped housing.

[0019] In some embodiments, the second slide groove is a rectangular groove, and the first slide rod includes a rectangular protrusion, which is slidably disposed within the second slide groove.

[0020] In some embodiments, the fastener is a fastening bolt, which passes through the arc-shaped housing and abuts against the arc-shaped plate.

[0021] In some embodiments, the rotary drive assembly includes a drive motor, drive teeth, and an arc-shaped rack. The drive motor is mounted on the moving platform, and the drive teeth are provided at the output end of the drive motor. The arc-shaped rack is mounted on the arc-shaped housing and meshes with the drive teeth. Attached Figure Description

[0022] Figure 1 This is an overall schematic diagram of the adaptive centering support for the turbine pipe flange according to an embodiment of the present invention;

[0023] Figure 2 This is a partial structural schematic diagram of the adaptive centering support for the turbine pipeline flange according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the first support base, the limiting component, and the pressing component of the turbine pipeline flange adaptive centering support according to an embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the air outlet assembly of the turbine pipe flange adaptive centering support according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the first support base, limiting component, and adjusting component of the turbine pipeline flange adaptive centering support according to an embodiment of the present invention.

[0027] Figure 6 This is a cross-sectional schematic diagram of the adjustment assembly of the turbine pipe flange adaptive centering support according to an embodiment of the present invention;

[0028] Figure 7This is a schematic diagram of the adjustment assembly of the turbine pipe flange adaptive centering support according to an embodiment of the present invention;

[0029] Figure 8 This is an exploded view of the adjustment assembly of the turbine pipe flange adaptive centering support according to an embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of the first support base, limiting component, adjusting component, and rotary drive component of the turbine pipeline flange adaptive centering support according to an embodiment of the present invention;

[0031] Figure 10 This is a schematic diagram of the rotation drive assembly of the turbine pipe flange adaptive centering support according to an embodiment of the present invention;

[0032] Figure 11 This is an exploded structural diagram of the rotation drive assembly of the turbine pipe flange adaptive centering support according to an embodiment of the present invention.

[0033] Figure label:

[0034] 100. Centering bracket;

[0035] 1. Telescopic base; 11. Mobile platform;

[0036] 2. First support seat; 21. Cavity; 22. First slide groove;

[0037] 3. Adjustment component; 31. Bottom bracket; 311. Arc-shaped slide groove; 312. Connecting hole; 32. Mounting housing; 321. Arc-shaped housing; 3211. Second slide groove; 3212. Third slide groove; 322. Arc-shaped plate; 3221. Arc-shaped groove; 323. First slide rod; 3231. Rectangular protrusion; 324. Fastener; 325. Push plate; 3251. Fourth slide groove; 326. Second slide rod; 3261. Protrusion; 327. Adjustment rod;

[0038] 4. Limiting component; 41. Driving component; 411. Air intake component; 4111. Housing; 4112. Piston; 4113. Second elastic component; 412. Air intake pipe; 42. Telescopic rod; 421. Outer sleeve; 422. Rod body; 423. First elastic component; 424. Air outlet component; 4241. Air outlet pipe; 4242. Trapezoidal plug; 4243. Push rod;

[0039] 5. Rotary drive assembly; 51. Drive motor; 52. Drive gear; 53. Arc rack.

[0040] 6. Pressing assembly; 61. Pressing rod; 62. Push block; 63. Third elastic element; 64. Pull rod; 65. Limiting shell; 66. Fourth elastic element.

[0041] 7. Second support seat;

[0042] 200, First Pipeline; 300, Second Pipeline; 2001, Flange. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0044] The following is a reference to the appendix. Figures 1 to 11 The adaptive centering support 100 for turbine pipe flanges according to an embodiment of the present invention is described in detail.

[0045] like Figure 1 As shown, the turbine pipe flange adaptive alignment support 100 of this embodiment includes a telescopic base 1, a first support 2, an adjustment assembly 3, a limiting assembly 4, and a rotation drive assembly 5. The telescopic base 1 has a first direction (e.g., Figure 1 A movable platform 11 (movable in the vertical direction) is provided. One end of a first support 2 in this first direction is mounted on the movable platform 11, and the other end of the first support 2 in this first direction is used to support a pipe, the end of which has a flange 2001. An adjusting assembly 3 includes a bottom bracket 31 and a mounting housing 32. The bottom bracket 31 is mounted on the movable platform 11 and is located between the flange 2001 and the first support 2. The mounting housing 32 is rotatably mounted on the bottom bracket 31 and is used to support the pipe and drive its rotation. A limiting assembly 4 includes a driving member 41 and a telescopic rod 42. One end of the telescopic rod 42 in a second direction is mounted on the mounting housing 32. The telescopic rod 42 in the second direction (e.g., in the vertical direction)... Figure 1 The other end of the (left and right direction) is used to be inserted into the hole of the flange 2001. The drive component 41 is provided on the moving platform 11. The drive component 41 is connected to the telescopic rod 42 to drive the telescopic rod 42 to extend and retract. The second direction is perpendicular to the first direction. The rotation drive assembly 5 is provided on the moving platform 11. The rotation drive assembly 5 is connected to the mounting housing 32 to drive the mounting housing 32 to rotate.

[0046] When using the turbine pipe flange adaptive centering support 100 of this embodiment of the invention, the centering support 100 of the invention is placed at the joint position of two pipe sections, the first pipe 200 is placed on the first support seat 2, the mounting shell 32 is located between the flange 2001 of the first pipe and the first support seat 2, and then the telescopic base 1 drives the moving platform 11 to rise, so that the first support seat 2 abuts against and supports the first pipe 200. Then, the rotary drive assembly 5 drives the mounting housing 32 to rotate, aligning the telescopic rod 42 with the hole on the flange 2001 of the first pipe 200, thus achieving automatic alignment between the telescopic rod 42 and the hole on the flange 2001. Then, the drive component 41 drives the telescopic rod 42 to extend, inserting it into the hole on the flange 2001. The telescopic rod 42 connects the flange 2001 of the first pipe 200 and the mounting housing 32 into one unit. Then, the rotary drive assembly 5 rotates, thereby driving the flange 2001 of the first pipe 200 to rotate, aligning the hole on the flange 2001 of the first pipe 200 with the hole on the flange 2001 of the second pipe 300. Then, personnel can quickly insert the fastening bolts into the holes of the two mating flanges 2001 to fix the two flanges together. After the flanges 2001 of the first pipe 200 and the second pipe 300 are connected, the telescopic base 1 drives the moving platform 11 to move downward, so that the first support 2 and the mounting shell 32 are both disengaged from the first pipe 200, and then the centering bracket 100 can be removed.

[0047] Therefore, the centering bracket 100 of this embodiment of the invention achieves the fixation of the flange 2001 and the mounting shell 32 of the first pipe 200 by precisely inserting the telescopic rod 42 into the flange 2001 hole of the first pipe 200. The rotation drive assembly 5 drives the flange 2001 to rotate stably, ensuring high precision in the docking process. This reduces reliance on manual prying and rotating of pipes, not only reducing the labor intensity of operators but also reducing human error and saving labor costs. It also reduces safety hazards such as poor pipe sealing and media leakage caused by misalignment, and achieves automatic alignment of the flange 2001 hole, eliminating the need for traditional manual visual observation and adjustment. This effectively avoids hole position deviation problems, thereby ensuring the stable operation of the steam turbine unit and making it suitable for large-scale, high-efficiency steam turbine pipeline installation scenarios.

[0048] To make the scheme of this application easier to understand, a detailed explanation will be given using the example of the first direction being the same as the up-down direction and the second direction being the same as the left-right direction. The up-down direction is as follows: Figures 1 to 6 As shown, the left and right directions are as follows Figures 1 to 6 As shown, the front and back directions are as follows Figures 1 to 6 As shown.

[0049] The turbine pipeline flange adaptive centering support 100 of this invention includes a telescopic base 1, a first support 2, an adjustment component 3, a limiting component 4, a rotation drive component 5, and a pressing component 6.

[0050] The telescopic base 1 has a moving platform 11, which is capable of moving in the vertical direction.

[0051] like Figure 1 As shown, the centering bracket 100 of this embodiment of the invention also includes a second support 7. The second support 7 is disposed on the mobile platform 11. There are three second support 7s. Two second support 7s are located on the left side of the mobile platform 11 and are used to support the second pipe 300. One second support 7 is located on the right side of the mobile platform 11 (which is also the right side of the first support 2) and is used to support the first pipe 200.

[0052] The adjustment assembly 3 includes a bottom bracket 31 and a mounting housing 32. The bottom bracket 31 is mounted on the moving platform 11 and is located between the flange 2001 and the first support seat 2. The mounting housing 32 is rotatably mounted on the bottom bracket 31.

[0053] like Figure 2 and Figure 3 As shown, the limiting assembly 4 includes a driving member 41 and a telescopic rod 42. One end (right end) of the telescopic rod 42 in the second direction is provided on the mounting housing 32, and the other end (left end) of the telescopic rod 42 in the second direction is used to insert into the hole of the flange 2001. The driving member 41 is provided on the moving platform 11 and is connected to the telescopic rod 42 to drive the telescopic rod 42 to extend and retract. The second direction is perpendicular to the first direction.

[0054] The telescopic rod 42 includes an outer sleeve 421, a rod body 422, a first elastic element 423, and an air outlet 424. The outer sleeve 421 is connected to the mounting housing 32. One end (right end) of the rod body 422 is slidably disposed within the outer sleeve 421, and the other end (left end) of the rod body 422 is used to insert into the hole of the flange 2001. The first elastic element 423 is disposed within the outer sleeve 421 and connects the rod body 422 and the outer sleeve 421 to generate a force on the rod body 422 toward the mounting housing 32. The air outlet 424 is disposed on the outer sleeve 421. The drive unit 41 includes an air inlet 411 and an air inlet pipe 412. The air inlet 411 is disposed on the moving platform 11, and the air inlet pipe 412 connects the air inlet 411 and the outer sleeve 421 so that the air inlet 411 can inhale air into the outer sleeve 421 through the air inlet pipe 412.

[0055] Air intake 411 introduces air into outer sleeve 421 through intake pipe 412, increasing the air pressure inside outer sleeve 421. This pushes rod 422 to extend to the left side of outer sleeve 421 and insert into the hole of flange 2001, connecting telescopic rod 42 to flange 2001. Simultaneously, first elastic element 423 is stretched. After the holes of flanges of first pipe 200 and second pipe 300 are aligned, and at least two connecting bolts are installed, the two flanges no longer require external force for hole alignment. The telescopic rod 42 can then be gradually removed from fixing flange 2001 of first pipe 200. Air exhaust 421 through exhaust 424, reducing the air pressure inside. Under the elastic force of first elastic element 423, rod 422 retracts back into outer sleeve 421, disengaging from flange 2001, thus separating telescopic rod 42 from flange 2001.

[0056] The intake component 411 includes a housing 4111, a piston 4112, and a second elastic member 4113. The housing 4111 is mounted on the moving platform 11. One end (left end) of the housing 4111 is connected to the intake pipe 412. The piston 4112 is movably disposed within the housing 4111. The second elastic member 4113 connects the housing 4111 and the piston 4112 to generate a force on the piston 4112 away from the end of the housing 4111. The first support 2 is provided with a cavity 21, a first opening, and a second opening. The cavity 21 has a first opening at one end (upper end) in a first direction, and a second opening on the side (left side) of the cavity 21 adjacent to the housing 4111 in the second direction. The other end (right end) of the housing 4111 is connected to the second opening. The pressing component 6 is movably disposed within the cavity 21 and has an initial position and a pressing position. In the initial position, a portion of the pressing component 6 is located outside the cavity 21 and is used to abut against the pipe. In the pressing position, a portion of the pressing component 6 is located within the second opening and pushes the piston 4112 to compress the first elastic member 423 to allow air to enter the outer sleeve 421 through the air inlet pipe 412.

[0057] After the centering bracket 100 is installed at the docking position of the first pipe 200 and the second pipe 300, when the moving platform 11 rises, the first pipe 200 gradually comes into contact with the pressing component 6. Under its own weight, the first pipe 200 presses down on the pressing component 6, causing the pressing component 6 to move from the initial position to the pressing position. This causes a part of the pressing component 6 to move to the left through the second opening and push the piston 4112, thereby causing the piston 4112 to push the air on its left side into the air intake pipe 412 and the outer sleeve 421, and then push the rod 422 to extend to the left.

[0058] The centering bracket 100 of the present invention links the process of pressing the first pipeline down the first support seat 2 through the pressing component 6 with the process of inserting the telescopic rod 42 into the flange 2001 hole of the first pipeline 200, thereby improving the efficiency of the connection between the telescopic rod 42 and the flange 2001 of the first pipeline 200.

[0059] Specifically, the first support 2 is provided with a first groove 22 extending along the first direction, and the first groove 22 is located on the side (right side) of the cavity 21 facing away from the housing 4111 in the second direction. The pressing assembly 6 includes a pressing rod 61, a push block 62, a third elastic element 63, a pull rod 64, a limiting shell 65, and a fourth elastic element 66. The pressing rod 61 is slidably disposed in the cavity 21 in the first direction. The pull rod 64 passes through the first sliding groove 22. The push block 62 is connected to the pull rod 64. The limiting shell 65 is disposed at the end (lower end) of the pressing rod 61 away from the first opening. A portion of the push block 62 is slidably disposed in the limiting shell 65 along the second direction. The push block 62 is connected to the pull rod 64. The third elastic element 63 connects the push block 62 and the limiting shell 65 to form a force on the push block 62 toward the piston 4112. The fourth elastic element 66 connects the wall of the cavity 21 and the pressing rod 61 to form a force on the pressing rod 61 toward the first opening. In this initial position, one end of the pressure rod 61 is located outside the cavity 21 and abuts against the pipe, and the push block 62 is located inside the cavity 21 and abuts against the other end of the pressure rod 61 in the first direction. In this pressing position, one end of the pressure rod 61 is located inside the first opening, and the push block 62 is located in the second opening and abuts against the piston 4112.

[0060] During the process of placing the first pipe 200 on the first support 2, the first pipe 200 presses down the pressing rod 61, thereby pushing the pressing rod 61, the push block 62, the pull rod 64, the third elastic element 63 and the limiting shell 65 to move downwards. The fourth elastic element 66 is gradually stretched. When the first pipe 200 abuts against the upper side of the first support 2, the upper end of the pressing rod 61 moves down to the first opening, and the push block 62 moves to the second opening, so that the push block 62 has space to move to the left. Then, under the action of the elastic force of the third elastic element 63, the push block 62 is pushed to move to the left, thereby moving the push block 62 into the housing 4111 and pushing the piston 4112 to move to the left, realizing the intake of air into the telescopic rod 42 and realizing the extension of the telescopic rod 42. After the first pipe 200 and the second pipe 300 are connected, the abutment between the first pipe 200 and the first support 2 is released. Then, the pull rod 64 is pulled to the right, thereby driving the push rod 4243 to move to the right and reset the push rod 4243 into the cavity 21. The third elastic element 63 is compressed and reset. Then, under the action of the fourth elastic element 66, the pressure rod 61, the push block 62, the third elastic element 63, the pull rod 64 and the limiting shell 65 move upward and reset. The upper end of the pressure rod 61 extends out of the first opening, thus preparing for the next pipe connection.

[0061] It should be noted that although the process of the first pipe 200 being pressed down to the first support seat 2 and the process of the telescopic rod 42 extending into the flange 2001 hole of the first pipe 200 are linked, the extension process of the telescopic rod 42 takes place after the first pipe 200 is pressed down to the first support seat 2. Furthermore, the extension of the telescopic rod 42 requires time. The process of the rotary drive assembly 5 driving the mounting housing 32 to rotate to align the telescopic rod 42 with the flange 2001 of the first pipe 200 can be carried out simultaneously with the extension of the telescopic rod 42. If the telescopic rod 42 has already extended and abutted against the end face of the flange 2001 but has not entered the hole of the flange 2001, the rotary drive assembly 5 continues to drive the mounting housing 32 to rotate, and simultaneously drives the telescopic rod 42 to rotate. When the telescopic rod 42 is aligned with the hole, under the action of the air pressure in the outer sleeve 421, the rod body 422 of the telescopic rod 42 can extend into the hole, realizing the insertion of the telescopic rod 42 into the hole. This operation can reduce the difficulty of manually aligning the telescopic rod 42 and the hole of the flange 2001.

[0062] Specifically, the downward pressure rod 61 is a T-shaped rod, such as... Figure 3 As shown.

[0063] like Figure 4 As shown, the air outlet component 424 includes an air outlet pipe 4241, a trapezoidal plug 4242, and a push rod 4243. One end of the air outlet pipe 4241 is connected to the outer sleeve 421. The inner cavity of the air outlet pipe 4241 is provided with a trapezoidal air groove. The trapezoidal plug 4242 is inserted into the inner cavity of the trapezoidal air groove. The push rod 4243 is fixedly installed at the open end of the trapezoidal plug 4242. Moving the push rod 4243 can move the trapezoidal plug 4242, adjusting the tightness of the trapezoidal plug 4242 on the trapezoidal air groove, thereby adjusting the air outlet speed of the air outlet pipe 4241, which in turn can adjust the exhaust speed of the outer sleeve, adjust the retraction speed of the telescopic rod 42, and control the retraction time of the telescopic rod 42.

[0064] When the telescopic rod 42 needs to retract, the push rod 4243 is pulled to the right to increase the gap between the trapezoidal plug 4242 and the trapezoidal air groove, thereby venting the outer sleeve 421. This causes the rod body 422 to move to the right and reset under the action of the first elastic element 423, thus separating the rod body 422 from the hole of the flange 2001.

[0065] Specifically, the connection point between the outer sleeve 421 and the air outlet pipe 4241 has a gap with the right end of the rod 422, so as not to affect the normal retraction of the rod 422.

[0066] Furthermore, the air outlet pipe 4241 is an L-shaped pipe and includes a first pipe section and a second pipe section. The first pipe section is connected to the outer sleeve 421, and the second pipe section extends along the second direction and faces the arc-shaped shell 32. The inner cavity of the second pipe section is provided with a trapezoidal air groove.

[0067] Specifically, there are three telescopic rods 42, which share a common air inlet 411. That is, the air inlet 411 is connected to three air inlet pipes 412, which are respectively connected to the outer sleeves 421 of the three telescopic rods 42. The three telescopic rods 42 correspond to different holes on the flange 2001, thereby increasing the stability of the telescopic rods 42 when they are inserted into the flange 2001, which ensures the stability of the flange 2001 of the first pipe 200 and improves the efficiency of bolting the flanges of the two pipes.

[0068] like Figures 5 to 8 As shown, the mounting housing 32 includes an arc-shaped housing 321, an arc-shaped plate 322, a first sliding rod 323, and a fastener 324. The arc-shaped housing 321 is rotatably mounted on the bottom support 31. The arc-shaped housing 321 has an arc-shaped cavity, and the arc-shaped plate 322 is slidably disposed in the arc-shaped cavity and concentrically arranged with the arc-shaped housing 321. At least one end of the arc-shaped plate 322 extends out of the arc-shaped cavity. The arc-shaped housing 321 is provided with a second sliding groove 3211, which extends radially along the arc-shaped housing 321. The arc-shaped plate 322 is provided with an arc-shaped groove 3221, which corresponds to the second sliding groove 3211. The first sliding rod 323 passes through the corresponding arc-shaped groove 3221 and the second sliding groove 3211. The first sliding rod 323 is fixedly connected to the outer sleeve 421. The fastener 324 connects the arc-shaped housing and the arc-shaped plate 322.

[0069] For different models of flanges 2001, their diameters and hole positions are different. When the diameter of the flange 2001 of the first pipe 200 being connected changes, the fastener 324 can be removed first, allowing the arc plate 322 to rotate relative to the arc shell. Pulling the arc plate 322 causes it to rotate upwards or downwards. Since the first sliding rod 323 is located in both the arc groove 3221 and the second sliding groove 3211, and the second sliding groove 3211 is a groove along the radial direction of the arc shell 321, when the arc plate 322 rotates, it can drive the first sliding rod 323 to move towards or away from the center along the second sliding groove 3211. Correspondingly, when the first sliding rod 323 moves towards the center, the corresponding diameter decreases, allowing the telescopic rod 42 to adapt to flanges 2001 with smaller diameters. When the first sliding rod 323 moves away from the center, the corresponding diameter increases, allowing the telescopic rod 42 to adapt to flanges 2001 with larger diameters. This allows for the adjustment of the position of the telescopic rod 42 to accommodate the mating of flanges 2001 of different diameters.

[0070] Specifically, fastener 324 is a fastening bolt, which passes through the arc-shaped housing 321 and abuts against the arc-shaped plate 322.

[0071] The arc-shaped housing 321 is provided with a plurality of third sliding grooves 3212, which extend radially along the arc-shaped housing 321, and the third sliding grooves 3212 correspond to the arc-shaped grooves 3221. The mounting housing 32 further includes a push plate 325, a second slide rod 326, and an adjusting rod 327. The push plate 325 is located on the side (right side) of the arc-shaped plate 322 away from the telescopic rod 42. The push plate 325 is provided with a fourth slide groove 3251, which corresponds to the second slide groove 3211. The second slide rod 326 passes through the fourth slide groove 3251, the arc-shaped groove 3221, and the third slide groove 3212. One end (left end) of the second slide rod 326 is connected to the push rod 4243, and the other end (right end) of the second slide rod 326 is provided with a protrusion 3261 and abuts against the side of the push plate 325 away from the arc-shaped housing 321. That is, the protrusion 3261 is located on the right side of the second slide rod 326. The arc-shaped housing 321 is provided with a threaded hole. The push plate 325 is rotatably provided with an adjusting rod 327, which is fitted into the threaded hole of the arc-shaped housing 321.

[0072] If it is necessary to adjust the air outlet speed of the air outlet pipe 4241, the adjusting rod 327 is rotated to move it partially in or out of the threaded hole. This causes the push plate 325 to move closer to the arc-shaped housing 321 (push plate 325 moves to the left) or away from the arc-shaped housing 321 (push plate 325 moves to the right). This, in turn, pushes the push rod 4243 to move to the left or pull it to the right, so that the push rod 4243 controls the position of the trapezoidal blockage 4242 within the trapezoidal air groove of the air outlet pipe 4241. The gas outlet gap between the trapezoidal plug 4242 and the trapezoidal gas groove is adjusted. As the gas in the inner cavity of the outer sleeve 421 of the telescopic rod 42 is discharged through the gas outlet pipe 4241, the rod body 422 of the telescopic rod 42 begins to retract under the tension of the first elastic element 423. The retraction time can be controlled by adjusting the gas outlet gap, so that after the telescopic rod 42 completes the insertion of the hole of the flange 2001 and the fixing of the flanges of the two pipes, the telescopic rod 42 and the flange 2001 are automatically separated.

[0073] Therefore, the centering bracket 100 of this invention adjusts the radial position of the telescopic rod through the arc plate and arc groove, adapting to the position and spacing of holes in different types of flanges without frequent tool changes. The air output speed can be controlled as a whole through the adjusting rod, adapting to the centering requirements under different working conditions, reducing manual adjustment time. Especially in the installation of large pipelines, it significantly improves the operating efficiency and solves the problems of poor adaptability and time-consuming and laborious traditional auxiliary tools.

[0074] The second slide groove 3211 is a rectangular groove, and the first slide rod 323 includes a rectangular protrusion 3231, which is slidably disposed within the second slide groove 3211. The cooperation between the rectangular protrusion 3231 and the second slide groove 3211 guides the movement of the rectangular protrusion 3231, which in turn guides the movement of the first slide rod 323. This ensures that when the arc plate 322 is pulled and the first slide rod 323 is moved through the arc groove 3221, the first slide rod 323 moves radially along the arc shell 321, thereby ensuring the accuracy of the radial position adjustment of the telescopic rod 42 in the arc shell 321.

[0075] Specifically, after the centering bracket 100 is installed under the two pipes that need to be connected, with the first support seat 2 supporting the first pipe 200, the upper side of the arc-shaped housing 321 is adjacent to the first pipe 200, and the arc-shaped housing 321 does not serve as a component supporting the first pipe 200.

[0076] like Figure 9 As shown, the rotary drive assembly 5 includes a drive motor 51, a drive tooth 52, and an arc-shaped rack 53. The drive motor 51 is mounted on the moving platform 11, and the output end of the drive motor 51 is provided with the drive tooth 52. The arc-shaped rack 53 is mounted on the arc-shaped housing 321, and the arc-shaped rack 53 meshes with the drive tooth 52.

[0077] Specifically, such as Figure 10 and Figure 11 As shown, the bottom bracket 31 is provided with an arc-shaped slide groove 311 and a connecting hole 312. The mounting shell 32 is rotatably disposed in the arc-shaped slide groove 311. The connecting hole 312 is located at the bottom of the arc-shaped slide groove 311. The rotation drive assembly 5 is disposed on the moving platform 11. The arc-shaped shell 321 is rotatably disposed in the arc-shaped slide groove 311. The drive gear 52 is connected to the arc-shaped rack 53 in the connecting hole 312 to drive the mounting shell 32 to rotate.

[0078] The drive motor 51 is located on the upper side of the housing 4111 of the air intake component 411. The output end of the drive motor 51 drives the fixedly connected drive gear 52 to rotate in the connecting hole 312 opened in the middle of the lower end of the arc-shaped slide groove 311. Since the drive gear 52 meshes with the arc-shaped rack 53, the rotation of the drive gear 52 will drive the arc-shaped rack 314 and the arc-shaped housing 321 to slide along the trajectory of the arc-shaped slide groove 311. The rotation of the arc-shaped housing 21 drives the telescopic rod 42 and related components to rotate together through the first planning rod 323. The telescopic end of the telescopic rod 42 is inserted into the hole of the flange 2001 of the first pipe 200, thereby driving the flange 2001 and the first pipe 200 fixed thereto to rotate slowly, realizing the automatic alignment of the hole of the flange 200.

[0079] During this process, the drive teeth 52 at the output end of the drive motor 51 are kept misaligned with the air intake pipe 412 to prevent the drive teeth 52 from getting caught in or abrading the wall of the air intake pipe 412 when rotating, thus ensuring the safety and stability of the device operation. Once the holes on the flange 2001 are aligned, the drive motor 51 is turned off, and the arc-shaped housing 21 and related components stop rotating, allowing subsequent bolt connection operations to proceed.

[0080] In use, first, adjust the telescopic rod 42 to a position that matches the hole spacing of the flange 2001 to be connected by adjusting component 3. Then, start the rotary drive component 5 to rotate the mounting housing 32 to automatically align the telescopic rod 42 with the hole of the flange 2001 of the first pipe 200. Then, insert the telescopic rod 42 into the hole of the flange 2001 of the first pipe 200. Then, start the rotary drive component 5 to rotate the mounting housing 32 to align the hole of the flange 2001 of the first pipe 200 with the hole of the flange 2001 of the second pipe 300.

[0081] Specifically, the first elastic element, the second elastic element, the third elastic element, and the fourth elastic element are all springs.

[0082] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0083] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0084] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0085] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0086] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0087] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A self-adaptive centering support (100) for a steam turbine pipe flange, characterized in that, include: Telescopic base (1), the telescopic base (1) having a movable platform (11) movable in a first direction; A first support base (2) is provided at one end on the mobile platform (11) in the first direction, and the other end of the first support base (2) in the first direction is used to support the pipe, the end of the pipe having a flange (2001). Adjustment assembly (3), the adjustment assembly (3) includes a bottom bracket (31) and a mounting housing (32), the bottom bracket (31) is disposed on the moving platform (11), the bottom bracket (31) is located between the flange (2001) and the first support base (2), and the mounting housing (32) is rotatably disposed on the bottom bracket (31); The limiting component (4) includes a driving member (41) and a telescopic rod (42). One end of the telescopic rod (42) in the second direction is disposed on the mounting housing (32), and the other end of the telescopic rod (42) in the second direction is used to insert into the hole of the flange (2001). The driving member (41) is disposed on the moving platform (11). The driving member (41) is connected to the telescopic rod (42) to drive the telescopic rod (42) to extend and retract. The second direction is perpendicular to the first direction. and A rotary drive assembly (5) is disposed on the mobile platform (11) and is connected to the mounting housing (32) to drive the mounting housing (32) to rotate.

2. The turbine pipe flange adaptive centering support (100) according to claim 1, characterized in that, The telescopic rod (42) includes an outer sleeve (421), a rod body (422), a first elastic element (423), and an air outlet (424). The outer sleeve (421) is connected to the mounting shell (32). One end of the rod body (422) is slidably disposed inside the outer sleeve (421), and the other end of the rod body (422) is used to insert into the hole of the flange (2001). The first elastic element (423) is disposed inside the outer sleeve (421) and connects the rod body (422) and the outer sleeve (421) to form a force on the rod body (422) toward the mounting shell (32). The air outlet (424) is disposed on the outer sleeve (421). The drive unit (41) includes an air intake component (411) and an air intake pipe (412). The air intake component (411) is disposed on the mobile platform (11), and the air intake pipe (412) connects the air intake component (411) and the outer sleeve (421) so that the air intake component (411) can intake air into the outer sleeve (421) through the air intake pipe (412).

3. The turbine pipeline flange adaptive centering support (100) according to claim 2, characterized in that, The air intake component (411) includes a housing (4111), a piston (4112), and a second elastic member (4113). The housing (4111) is disposed on the moving platform (11). One end of the housing (4111) is connected to the air intake pipe (412). The piston (4112) is movably disposed inside the housing (4111). The second elastic member (4113) connects the housing (4111) and the piston (4112) to form a force on the piston (4112) away from the one end of the housing (4111). The first support base (2) is provided with a cavity (21), a first opening and a second opening. The cavity (21) has the first opening at one end in the first direction and the second opening at the side of the cavity (21) adjacent to the housing (4111) in the second direction. The other end of the housing (4111) is connected to the second opening. The turbine pipe flange adaptive centering support (100) further includes a pressing assembly (6), which is movably disposed within the cavity (21) and has an initial position and a pressing position. In the initial position, a portion of the pressing assembly (6) is located outside the cavity (21) and is used to abut against the pipe. In the pressing position, a portion of the pressing assembly (6) is located within the second opening and pushes the piston (4112) to compress the first elastic element (423) to allow air to enter the outer sleeve (421) through the air inlet pipe (412).

4. The turbine pipe flange adaptive centering support (100) according to claim 3, characterized in that, The first support base (2) is provided with a first groove (22) extending along the first direction, and the first groove (22) is located on the side of the cavity (21) facing away from the housing (4111) in the second direction; The pressing assembly (6) includes a pressing rod (61), a push block (62), a third elastic element (63), a pull rod (64), a limiting shell (65), and a fourth elastic element (66). The pressing rod (61) is slidably disposed in the cavity (21) in the first direction. The pull rod (64) passes through the first sliding groove (22). The limiting shell (65) is disposed at the end of the pressing rod (61) away from the first opening. A portion of the push block (62) is slidably disposed in the limiting shell (65) in the second direction. The push block (62) is connected to the pull rod (64). The third elastic element (63) connects the push block (62) and the limiting shell (65) to form a force on the push block (62) toward the piston (4112). The fourth elastic element (66) connects the first support seat (2) and the pressing rod (61) to form a force on the pressing rod (61) toward the first opening. In the initial position, one end of the pressure rod (61) is located outside the cavity (21) and abuts against the pipe, and the push block (62) is located inside the cavity (21) and abuts against the other end of the pressure rod (61) in the first direction. In the pressing position, one end of the pressure rod (61) is located inside the first opening, and the push block (62) is located in the second opening and abuts against the piston (4112).

5. The turbine pipe flange adaptive centering support (100) according to claim 2, characterized in that, The air outlet component (424) includes an air outlet pipe (4241), a trapezoidal plug (4242), and a push rod (4243). One end of the air outlet pipe (4241) is connected to the outer sleeve (421). The inner cavity of the air outlet pipe (4241) is provided with a trapezoidal air groove. The trapezoidal plug (4242) is inserted into the inner cavity of the trapezoidal air groove. The push rod (4243) is fixedly installed at the opening end of the trapezoidal plug (4242).

6. The turbine pipeline flange adaptive centering support (100) according to claim 5, characterized in that, The mounting housing (32) includes an arc-shaped housing (321), an arc-shaped plate (322), a first sliding rod (323), and a fastener (324). The arc-shaped housing (321) is rotatably mounted on the bottom bracket (31). The arc-shaped housing (321) has an arc-shaped cavity. The arc-shaped plate (322) is slidably mounted in the arc-shaped cavity and is concentrically arranged with the arc-shaped housing (321). At least one end of the arc-shaped plate (322) extends out of the arc-shaped cavity. The arc-shaped housing (321) is provided with a second sliding groove (324). 11) The second slide groove (3211) extends radially along the arc-shaped shell (321), and the arc-shaped plate (322) is provided with an arc-shaped groove (3221). The arc-shaped groove (3221) and the second slide groove (3211) correspond to each other. The first slide rod (323) passes through the arc-shaped groove (3221) and the second slide groove (3211). The first slide rod (323) is fixedly connected to the outer sleeve (421). The fastener (324) connects the arc-shaped shell and the arc-shaped plate (322).

7. The turbine pipeline flange adaptive centering support (100) according to claim 6, characterized in that, The arc-shaped housing (321) is provided with a third sliding groove (3212), which extends radially along the arc-shaped housing (321). The third sliding groove (3212) corresponds to the arc-shaped groove (3221). The mounting housing (32) further includes a push plate (325), a second slide rod (326), and an adjusting rod (327). The push plate (325) is located on the side of the arc-shaped plate (322) away from the telescopic rod (42). The push plate (325) is provided with a fourth slide groove (3251), which corresponds to the second slide groove (3211). The second slide rod (326) passes through the fourth slide groove (3251), the arc-shaped groove (3221), and the third slide rod (327). Inside the slide groove (3212), one end of the second slide rod (326) is connected to the push rod (4243), and the other end of the second slide rod (326) is provided with a protrusion (3261) and abuts against the side of the push plate (325) away from the arc-shaped housing (321). The arc-shaped housing (321) is provided with a threaded hole, and the push plate (325) is rotatably provided with the adjusting rod (327). The adjusting rod (327) is fitted into the threaded hole of the arc-shaped housing (321).

8. The turbine pipe flange adaptive centering support (100) according to claim 6, characterized in that, The second slide groove (3211) is a rectangular groove, and the first slide rod (323) includes a rectangular protrusion (3231), which is slidably disposed in the second slide groove (3211).

9. The turbine pipe flange adaptive centering support (100) according to claim 6, characterized in that, The fastener (324) is a fastening bolt, which passes through the arc-shaped housing (321) and abuts against the arc-shaped plate (322).

10. The turbine pipe flange adaptive centering support (100) according to claim 1, characterized in that, The rotary drive assembly (5) includes a drive motor (51), a drive tooth (52), and an arc rack (53). The drive motor (51) is mounted on the moving platform (11). The output end of the drive motor (51) is provided with the drive tooth (52). The arc rack (53) is mounted on the arc-shaped shell (32). The arc rack (53) meshes with the drive tooth (52).

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