Movable lifting supporting platform for reverse flange bolt tensioner

Abstract

The invention provides a movable lifting supporting platform for a reverse flange bolt tensioner, particularly relates to the technical field of high-voltage equipment disassembly, and aims to solve the technical problem that the mounting operation of the bolt tensioner needs to completely depend on manual carrying and lifting. The device comprises a supporting frame which is vertically arranged, wherein universal pulleys are arranged at the bottom of the supporting frame; one side of the supporting frame is slidably connected with a supporting mechanism in the vertical direction, the top of a piston of the bolt tensioner is inverted and fixed to the top of the supporting mechanism through a clamping mechanism, and a fine adjustment mechanism used for adjusting the direction of the bolt tensioner is arranged between the supporting mechanism and the clamping mechanism. And the support frame is provided with a chain type lifter for controlling the lifting of the support mechanism. The bolt puller is suitable for disassembling large-diameter bolts in high-voltage equipment, and can replace manual work to accurately transfer and lift a large-weight bolt puller to a corresponding position so as to disassemble inverted reverse flange bolts.

Description

Technical Field

[0001] The present invention relates to the technical field of high-voltage equipment disassembly, and in particular to a movable lifting support platform for a reverse flange bolt tensioner. Background Art

[0002] During the maintenance and installation of high-voltage equipment, the disassembly and assembly of reverse flange bolts is an essential task. Due to its inverted design, the reverse flange nut is usually located at high altitude or in a narrow equipment frame, which poses a great challenge to the installation and operation of the bolt tensioner. As an important hydraulic tool for the efficient disassembly and assembly of flange bolts, the tensioner is far heavier than what can be lifted by manpower. In addition, due to the space limitations of the working environment, traditional mechanical auxiliary equipment such as elevators, cranes or lifts are large in size and difficult to reach the working position, resulting in the installation operation of the bolt tensioner relying entirely on manual handling and lifting, which seriously affects the progress of bolt disassembly and assembly, and also poses a greater operational safety risk.

[0003] To overcome the above problems, there is an urgent need for a device dedicated to moving and lifting bolt tensioners. The device aims to reduce manpower consumption, improve the positioning accuracy of the tensioner, and ensure operational safety through structural optimization and functional integration, so as to adapt to the auxiliary needs of the bolt disassembly and assembly process in complex working environments. Summary of the Invention

[0004] The purpose of the present invention is to provide a mobile lifting support platform for a reverse flange bolt tensioner, which is suitable for dismantling large-diameter bolts in high-voltage equipment. It can replace manual labor to accurately transfer and lift the heavy bolt tensioner to the corresponding position to remove the inverted reverse flange bolts.

[0005] The embodiments of the present invention are achieved through the following technical solutions:

[0006] A mobile lifting support platform for a reverse flange bolt tensioner, comprising a vertically arranged support frame with a universal pulley at the bottom; a support mechanism connected to one side of the support frame for sliding in a vertical direction, the top of the piston of the bolt tensioner is inverted and fixed to the top of the support mechanism by a clamping mechanism, a fine-tuning mechanism for adjusting the orientation of the bolt tensioner is provided between the support mechanism and the clamping mechanism; a chain elevator is provided on the support frame for controlling the lifting and lowering of the support mechanism.

[0007] In some embodiments, the support mechanism includes two horizontally parallel mounting rods, the mounting rods are slidably connected to the support frame, the fine-tuning mechanism is arranged between the two mounting rods, and the clamping mechanism is arranged at the top of the fine-tuning mechanism.

[0008] In some embodiments, the fine-tuning mechanism includes a mounting assembly fixedly disposed between the two mounting rods, the top of the mounting assembly is rotatably connected to a mounting plate, and the clamping mechanism is disposed on the top of the mounting plate; the outer surface of the mounting plate is surrounded by a worm gear ring, and the outer sides of the two mounting rods are respectively connected to side plates, and a worm engaged with the worm gear ring is rotatably connected between the two side plates, and the worm is driven to rotate by a motor disposed on the outer sides of the side plates.

[0009] In some embodiments, the mounting assembly includes a mounting block fixed between the two mounting rods, a sliding block being slidably connected above the mounting block, and the sliding block slides axially perpendicular to the mounting rod; the mounting plate is rotatably connected to the top of the sliding block; the sliding block is provided with a rack at the bottom of the side close to the worm gear, and the inner side of the mounting rod is rotatably connected to a first transmission rod, one end of the first transmission rod is provided with a gear meshing with the rack, and the other end of the first transmission rod is connected to the bottom end of a vertically arranged second transmission rod through a conical gear set; the second transmission rod is rotatably arranged on the inner side of the mounting rod and a worm gear is fixed on the top, the worm gear is horizontally coplanar with the worm gear ring and matches the worm gear; the side plate is connected to the outer side of the mounting rod by a driving assembly and slides along the axial direction of the mounting rod.

[0010] In some embodiments, the two side plates are fixedly connected to an extension rod on the side away from the support frame, the outer ends of the two extension rods extend beyond the outer ends of the mounting rods and are connected through end plates, the top of the end plates are slidably connected to a sliding plate, the sliding direction of the sliding plate is parallel to the sliding direction of the sliding block, the inner side of the sliding plate is fixedly connected to a follower rod, one end of the follower rod is slidably arranged inside the sliding block; the inner side of the sliding plate is also fixedly connected to a first locking rod, the first locking rod is arranged above the follower rod, and the outer annular array of the mounting plate has a plurality of first locking holes that cooperate with the first locking rod.

[0011] In some embodiments, the drive assembly includes a telescopic cylinder fixedly arranged under the mounting rod, and the telescopic direction of the telescopic cylinder is parallel to the axial direction of the mounting rod; the outer end of the piston of the telescopic cylinder is fixedly connected to a fixing plate, and the two ends of the fixing plate extend toward the outside of the mounting rod and are fixedly connected to the bottom of the extension rod.

[0012] In some embodiments, a second locking rod is fixed to the outer end of the fixing plate, and the second locking rod is arranged horizontally. A limiting rod is vertically fixed on both sides of the support frame, and a vertical array of locking through holes matching the limiting rod is provided on the limiting rod.

[0013] In some embodiments, a mounting plate is fixedly connected between the side plates, and the mounting plate is arranged below the worm; a mounting groove with an opening facing downwards is fixedly provided at the bottom of the mounting plate, a locking plate is slidably connected in the mounting groove, one end of the locking plate is connected to the inner top end of the mounting groove through a spring, and the other end of the locking plate extends below the mounting groove and the two side edges are arc-shaped; a locking sleeve is fixedly sleeved outside the first sensing rod, and a plurality of locking grooves matched with the locking plate are uniformly distributed around the outside of the locking sleeve, and the locking grooves are arc-shaped grooves; in addition, let the maximum distance between the end of the first locking rod and the first locking hole be s1, the maximum horizontal distance between the end of the second locking rod and the locking through hole be s2, and when the worm meshes with the worm gear ring, the horizontal distance between the locking plate and the locking groove be s3, where s1, s2, and s3 satisfy the following formula: s1 < S3; s2 < s3.

[0014] In some embodiments, the clamping mechanism includes parallel clamping jaws fixedly connected to the mounting disc, and limiting components are respectively arranged on the inner sides of the two clamping plates of the parallel clamping jaws, and the limiting components include two limiting plates symmetric about the midline of the clamping plate, and the included angle between the two limiting plates is greater than or equal to 90°.

[0015] In some embodiments, a disc spring is arranged between the parallel clamping jaws and the mounting disc.

[0016] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

[0017] 1. The present invention is applicable to disassembling large-diameter bolts in high-pressure equipment, and it can replace manual labor to accurately transfer and lift a large-weight bolt stretcher to the corresponding position to remove the inverted reverse flange bolts.

[0018] 2. The present invention adopts XYZ three-axis linkage adjustment (Y-axis linear push-pull + Z-axis chain lifting + X-axis gear-rack translation), and配合 a worm and worm gear angle adjustment mechanism to实现 precise fine adjustment control of six degrees of freedom in space (position + angle), and can meet the precise alignment requirements under complex working conditions.

[0019] 3. The present invention designs a three-stage linkage locking mechanism (first / second locking rod + locking plate), and通过 the mathematical relationship of s1 < s3, s2 < s3 to ensure the locking sequence logic. Only by adjusting the expansion and contraction amount of the piston of the same telescopic cylinder can triple interlocks of angle - height - horizontal position and direct switching of the fine adjustment direction be formed, effectively preventing accidental displacement during the operation.

[0020] 4. The present invention adopts a compound transmission structure (bevel gear set + worm and worm gear + gear-rack), and配合 an electric control hydraulic drive system to实现 rapid switching of the power transmission path, and has both large torque output and fine adjustment capabilities.

[0021] 5. The clamping mechanism of the present invention can be applied to bolt tensioners of various specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A side view of a movable lifting support platform for a reverse flange bolt tensioner provided in an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the internal structure of a support mechanism of a mobile lifting support platform for a reverse flange bolt tensioner provided in an embodiment of the present invention when adjusting the rotation angle of the bolt tensioner;

[0025] Figure 3 A schematic diagram of the internal structure of a support mechanism of a mobile lifting support platform for a reverse flange bolt tensioner provided in an embodiment of the present invention when adjusting the left and right positions of the bolt tensioner;

[0026] Figure 4 A schematic diagram of the internal structure of a support mechanism of a mobile lifting support platform for a reverse flange bolt tensioner provided in an embodiment of the present invention when fully locked;

[0027] Figure 5 This is a top view of the clamping mechanism of a mobile lifting support platform of a reverse flange bolt tensioner provided in an embodiment of the present invention.

[0028] Icons: 1. Support frame; 2. Bolt tensioner; 3. Chain hoist; 4. Mounting rod; 5. Mounting plate; 6. Worm gear ring; 7. Side plate; 8. Worm; 9. Motor; 10. Mounting block; 11. Sliding block; 12. Rack; 13. First drive rod; 14. Gear; 15. Tapered gear set; 16. Second drive rod; 17. Worm gear; 18. Extension rod; 19. End plate; 20. Sliding plate; 21. Follower Rod; 22. First locking rod; 23. First locking hole; 24. Telescopic cylinder; 25. Fixed plate; 26. Second locking rod; 27. Limit rod; 28. Locking through hole; 29. ​​Mounting plate; 30. Mounting slot; 31. Locking plate; 32. Spring; 33. Locking sleeve; 34. Locking slot; 35. Parallel clamp; 36. Clamp; 37. Limit plate; 38. Disc spring; 39. Control box; 40. Pressure sensor. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0032] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does 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 cannot be understood as a limitation on the present invention.

[0033] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific contexts.

[0034] See Figure 1-Figure 5As shown, this embodiment provides a mobile lifting support platform for a reverse flange bolt tensioner 2, including a vertically arranged support frame 1 with four universal pulleys at the bottom; a control box 39 is provided on the support frame 1, and a support mechanism is slidably connected to one side of the support frame 1 in a vertical direction, and a handle for transfer is provided on the other side of the support frame 1; the top of the piston of the bolt tensioner 2 is inverted and fixed to the top of the support mechanism through a clamping mechanism, and a fine-tuning mechanism for adjusting the orientation of the bolt tensioner 2 is provided between the support mechanism and the clamping mechanism; a chain elevator 3 for controlling the lifting and lowering of the support mechanism is provided on the support frame 1; the chain elevator 3 and the fine-tuning mechanism are respectively electrically connected to the industrial PLC inside the control box 39.

[0035] Furthermore, the support mechanism includes two horizontally parallel mounting rods 4, the mounting rods 4 are slidably connected to the support frame 1, the fine-tuning mechanism is arranged between the two mounting rods 4, and the clamping mechanism is arranged at the top of the fine-tuning mechanism.

[0036] Furthermore, the fine-tuning mechanism includes a mounting assembly fixedly arranged between the two mounting rods 4, the top of the mounting assembly is rotatably connected to a mounting plate 5, and the clamping mechanism is arranged on the top of the mounting plate 5; the outer surface of the mounting plate 5 is surrounded by a worm gear ring 6, and the outer sides of the two mounting rods 4 are respectively connected to side plates 7, and a worm 8 meshing with the worm gear ring 6 is rotatably connected between the two side plates 7, and the worm 8 is driven to rotate by a motor 9 arranged on the outer side of the side plate 7.

[0037] Furthermore, the mounting assembly includes a mounting block 10 fixed between the two mounting rods 4, and a sliding block 11 is slidably connected above the mounting block 10, and the sliding block 11 slides axially perpendicular to the mounting rod 4; the mounting plate 5 is rotatably connected to the top of the sliding block 11; the sliding block 11 is provided with a rack 12 at the bottom of the side close to the worm gear 8, and the inner side of the mounting rod 4 is rotatably connected to a first transmission rod 13, one end of the first transmission rod 13 is provided with a gear 14 meshing with the rack 12, and the other end of the first transmission rod 13 is connected to the bottom end of a vertically arranged second transmission rod 16 through a conical gear set 15; the second transmission rod 16 is rotatably arranged on the inner side of the mounting rod 4 and a worm gear 17 is fixed on the top, and the worm gear 17 is horizontally coplanar with the worm gear ring 6 and matches the worm gear 8; the side plate 7 is connected to the outer side of the mounting rod 4 by a driving assembly along the axial direction of the mounting rod 4.

[0038] Furthermore, the two side plates 7 are fixedly connected with an extension rod 18 on the side away from the support frame 1, and the outer ends of the two extension rods 18 extend beyond the outer end of the mounting rod 4 and are connected through an end plate 19. The top of the end plate 19 is slidably connected with a sliding plate 20, and the sliding direction of the sliding plate 20 is parallel to the sliding direction of the sliding block 11. The inner side of the sliding plate 20 is fixedly connected with a follower rod 21, and one end of the follower rod 21 is slidably arranged inside the sliding block 11; the inner side of the sliding plate 20 is also fixedly connected with a first locking rod 22, and the first locking rod 22 is arranged above the follower rod 21, and the outer annular array of the mounting plate 5 has a plurality of first locking holes 23 that cooperate with the first locking rod 22.

[0039] Furthermore, the driving assembly includes a telescopic cylinder 24 fixedly arranged under the mounting rod 4, and the telescopic direction of the telescopic cylinder 24 is parallel to the axial direction of the mounting rod 4; the outer end of the piston of the telescopic cylinder 24 is fixedly connected to a fixing plate 25, and the two ends of the fixing plate 25 extend toward the outside of the mounting rod 4 and are fixedly connected to the bottom of the extension rod 18.

[0040] Furthermore, a second locking rod 26 is fixed to the outer end of the fixing plate 25, and the second locking rod 26 is arranged horizontally. A limiting rod 27 is vertically fixed on both sides of the support frame 1, and a plurality of locking through holes 28 matching the limiting rod 27 are vertically arrayed on the limiting rod 27.

[0041] Furthermore, a mounting plate 29 is fixedly connected between the side plates 7, and the mounting plate 29 is arranged below the worm 8; a mounting groove 30 with an opening facing downward is fixedly provided at the bottom of the mounting plate 29, and a locking plate 31 is slidably connected in the mounting groove 30, one end of the locking plate 31 is connected to the inner top end of the mounting groove 30 through a spring 32, and the other end of the locking plate 31 extends to the bottom of the mounting groove 30 and the edges on both sides are arc-shaped; a locking sleeve 33 is fixedly sleeved on the outside of the first sensor rod, and the locking sleeve A plurality of locking grooves 34 are evenly distributed around the outer side of 33 and cooperate with the locking plate 31, and the locking grooves 34 are arc-shaped grooves; in addition, assuming that the maximum distance between the end of the first locking rod 22 and the first locking hole 23 is s1, the maximum horizontal distance between the end of the second locking rod 26 and the locking through hole 28 is s2, and when the worm 8 is engaged with the worm gear ring 6, the horizontal distance between the locking plate 31 and the locking groove 34 is s3, where s1, s2 and s3 satisfy the following formula: s1<S3; s2<s3.

[0042] Furthermore, the clamping mechanism includes a parallel clamp 35 fixedly connected to the mounting plate 5 and electrically connected to the industrial PLC in the control box 39, and the parallel clamp 35 adopts a pneumatic parallel clamp 35; the inner sides of the two clamps 36 of the parallel clamp 35 are respectively provided with a limit assembly, and the limit assembly includes two limit plates 37 symmetrical along the center line of the clamp 36, and the angle between the two limit plates 37 is greater than or equal to 90°.

[0043] Furthermore, a plurality of overlapping butterfly springs 32 are provided between the parallel clamping jaws 35 and the mounting plate 5 .

[0044] In some other embodiments, different from the above embodiment, a pressure sensor 40 electrically connected to the industrial PLC inside the control box 39 is further provided at the bottom end of the locking plate 31 .

[0045] The specific operation process and working principle of the present invention are as follows:

[0046] Before performing the bolt tensioning and disassembly operation, the corresponding model of bolt tensioner 2 is first clamped by the parallel clamping jaws 35, wherein the limit plate 37 is used to fix and limit the bolt tensioner 2, and then the corresponding pipelines of the bolt tensioner 2 are connected and inspected.

[0047] First, the staff uses the handle to move the support frame 1 to the bottom of the reverse flange nut to be removed, then places the sleeve for tightening the nut into the bolt tensioner 2, lifts the bolt tensioner 2 to the corresponding height position through the chain lift 3, and then fine-tunes the position of the bolt tensioner 2.

[0048] See also Figure 1 As shown, assuming that the linear direction in which the worker pushes the support frame 1 is the Y axis, the left and right direction of the worker is the X axis, and the vertical direction is the Z axis.

[0049] First, to fine-tune the position of the bolt tensioner 2 in the Y-axis direction, the staff can directly push the support frame 1 forward or backward, and then lock the position of the support frame 1 through the brake provided by the universal pulley.

[0050] Then, for fine-tuning the position of the bolt tensioner 2 in the Z-axis direction, the staff adjusts it again through the chain lift 3.

[0051] Then, the staff adjusts the expansion and contraction of the piston of the telescopic cylinder 24 through the control box 39, so that the side plate 7 drives the worm 8 to move; first, the side plate 7 is moved until the worm 8 engages with the worm gear ring 6 on the outside of the mounting plate 5, and then the staff drives the worm 8 forward or reverse by controlling the forward or reverse rotation of the motor 9, thereby driving the entire mounting plate 5 to rotate along its own axis, thereby adjusting the angle of the bolt tensioner 2, the purpose of which is to rotate the notch on the bolt tensioner 2 for screwing the sleeve to an angle that is convenient for the staff to operate. When the bolt tensioner 2 stretches the bolt to be removed, the bolt produces axial deformation, which in turn creates a certain gap between the nut and the bolt. At this time, the staff inserts the screw rod into the sleeve through the notch to screw the nut.

[0052] For fine-tuning the X-axis position: After the angle of the bolt tensioner 2 is adjusted, the operator adjusts the extension and contraction of the piston of the telescopic cylinder 24 through the control box 39, causing the side plate 7 to drive the worm 8 to move. This causes the worm 8 to move closer to the support frame 1, disengaging the worm 8 from the worm gear ring 6. Simultaneously, the piston of the telescopic cylinder 24 drives the first locking rod 22 on the inner side of the sliding plate 20 to move closer to the support frame 1. When the worm 8 moves to engage with the worm gear 17 on the second transmission rod 16, the first locking rod 22 has penetrated into the corresponding first locking hole 23, completing the locking of the angle of the bolt tensioner 2. At the same time, the second locking rod 26 also penetrates into the corresponding second locking hole at the corresponding height, thereby simultaneously locking the height of the bolt tensioner 2. Then the staff controls the motor 9 to rotate again, thereby driving the gear 14 to rotate through the second transmission rod 16, the tapered gear set 15 and the first transmission rod 13, and the gear 14 drives the rack 12 to move, thereby driving the sliding block 11 to slide along the mounting block 10, thereby achieving fine-tuning of the position of the bolt tensioner 2 in the X-axis direction.

[0053] After the fine adjustment is completed, the piston of the telescopic cylinder 24 is controlled to retract, and the side plate 7 drives the worm 8 to disengage from the worm wheel 17. When the side plate 7 moves to the mounting plate 29 above the locking sleeve 33, the locking plate 31 engages with the corresponding locking groove 34, thereby locking the rotation of the second transmission rod 16. Furthermore, since the maximum distance between the end of the first locking rod 22 and the first locking hole 23 is s1, and the maximum horizontal distance between the end of the second locking rod 26 and the locking through hole 28 is s2, when the worm 8 is engaged with the worm gear ring 6, the horizontal distance between the locking plate 31 and the locking groove 34 is s3, where s1, s2, and s3 satisfy the following formulas: s1 < S3; s2 < s3. Therefore, the first locking rod 22 and the first locking hole 23, as well as the first and second locking rods and the second locking hole, are all locked together, thus fully locking the entire bolt tensioner 2.

[0054] In addition, it is worth mentioning that when the bolt tensioner 2 stretches the bolt, downward pressure will be generated on the support mechanism, affecting the service life of the support mechanism. The disc spring 38 can effectively absorb this pressure and reduce its impact on the support mechanism.

[0055] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A mobile lifting support platform for a reverse flange bolt tensioner, characterized in that: The invention comprises a support frame (1) which is arranged vertically and has a universal pulley at the bottom; a support mechanism is connected to one side of the support frame (1) by sliding in the vertical direction; the piston top of the bolt tensioner (2) is inverted and fixed to the top of the support mechanism by a clamping mechanism; a fine adjustment mechanism for adjusting the orientation of the bolt tensioner (2) is provided between the support mechanism and the clamping mechanism; and a chain elevator (3) is provided on the support frame (1) for controlling the lifting and lowering of the support mechanism.

2. The mobile lifting support platform for reverse flange bolt tensioner according to claim 1 is characterized in that: The support mechanism comprises two horizontally parallel mounting rods (4), the mounting rods (4) are slidably connected to the support frame (1), the fine-tuning mechanism is arranged between the two mounting rods (4), and the clamping mechanism is arranged at the top end of the fine-tuning mechanism.

3. The mobile lifting support platform for reverse flange bolt tensioner according to claim 2 is characterized in that: The fine-tuning mechanism comprises a mounting assembly fixedly arranged between the two mounting rods (4); the top of the mounting assembly is rotatably connected to a mounting plate (5); the clamping mechanism is arranged on the top of the mounting plate (5); the outer surface of the mounting plate (5) is surrounded by a worm gear (17) ring; the outer sides of the two mounting rods (4) are respectively connected to side plates (7); a worm (8) meshing with the worm gear (17) ring is rotatably connected between the two side plates (7); the worm (8) is driven to rotate by a motor (9) arranged on the outer sides of the side plates (7).

4. The reverse flange bolt tensioner movable lifting support platform according to claim 3 is characterized in that: The mounting assembly comprises a mounting block (10) fixed between the two mounting rods (4); a sliding block (11) is slidably connected to the top of the mounting block (10); the sliding block (11) slides in an axial direction perpendicular to the mounting rod (4); the mounting plate (5) is rotatably connected to the top of the sliding block (11); the sliding block (11) is provided with a rack (12) at the bottom of a side close to the worm (8); the inner side of the mounting rod (4) is rotatably connected to a first transmission rod (13), and one end of the first transmission rod (13) is provided with a The rack (12) is meshed with a gear (14), and the other end of the first transmission rod (13) is connected to the bottom end of a vertically arranged second transmission rod (16) through a tapered gear set (15); the second transmission rod (16) is rotatably arranged on the inner side of the mounting rod (4) and a worm gear (17) is fixedly arranged on the top end, and the worm gear (17) and the worm gear (17) are horizontally coplanar with the tooth ring of the worm gear (17) and match the worm (8); the side plate (7) is connected to the outer side of the mounting rod (4) by a driving component and slides along the axial direction of the mounting rod (4).

5. The movable lifting support platform for the reverse flange bolt tensioner according to claim 4 is characterized in that: The two side plates (7) are fixedly connected with an extension rod (18) on a side away from the support frame (1), the outer ends of the two extension rods (18) extend beyond the outer end of the mounting rod (4) and are connected through an end plate (19), the top of the end plate (19) is slidably connected with a sliding plate (20), the sliding direction of the sliding plate (20) is parallel to the sliding direction of the sliding block (11), the inner side of the sliding plate (20) is fixedly connected with a follower rod (21), one end of the follower rod (21) is slidably arranged inside the sliding block (11); the inner side of the sliding plate (20) is also fixedly connected with a first locking rod (22), the first locking rod (22) is arranged above the follower rod (21), and the outer annular array of the mounting plate (5) has a plurality of first locking holes (23) that match the first locking rod (22).

6. The movable lifting support platform for the reverse flange bolt tensioner according to claim 5 is characterized in that: The driving assembly comprises a telescopic cylinder (24) fixedly arranged below the mounting rod (4), wherein the telescopic direction of the telescopic cylinder (24) is parallel to the axial direction of the mounting rod (4); the outer end of the piston of the telescopic cylinder (24) is fixedly connected to a fixing plate (25), and both ends of the fixing plate (25) extend toward the outside of the mounting rod (4) and are fixedly connected to the bottom of the extension rod (18).

7. The reverse flange bolt tensioner movable lifting support platform according to claim 6, characterized in that: The outer ends of the fixing plates (25) are fixed with second locking rods (26), which are arranged horizontally. Limiting rods (27) are vertically fixed on both sides of the support frame (1), and the limiting rods (27) are vertically arrayed with a plurality of locking through holes (28) that match the limiting rods (27).

8. The mobile lifting support platform for reverse flange bolt tensioner according to claim 7, characterized in that: A mounting plate (29) is fixedly connected between the side plates (7), and the mounting plate (29) is arranged below the worm (8); a mounting groove (30) with an opening facing downward is fixedly provided at the bottom of the mounting plate (29), and a locking plate (31) is slidably connected in the mounting groove (30), one end of the locking plate (31) is connected to the inner top end of the mounting groove (30) through a spring (32), and the other end of the locking plate (31) extends to the bottom of the mounting groove (30) and has arc-shaped edges on both sides; a locking sleeve (33) is fixedly sleeved on the outside of the first sensing rod, and the locking sleeve ( A plurality of locking grooves (34) are uniformly distributed around the outer side of the locking plate (31) and matched with the locking plate (33), and the locking grooves (34) are arc-shaped grooves; in addition, assuming that the maximum distance between the end of the first locking rod (22) and the first locking hole (23) is s1, the maximum horizontal distance between the end of the second locking rod (26) and the locking through hole (28) is s2, and when the worm (8) is engaged with the tooth ring of the worm wheel (17), the horizontal distance between the locking plate (31) and the locking groove (34) is s3, wherein s1, s2 and s3 satisfy the following formula: s1<S3; s2<s3.

9. A movable lifting support platform for a reverse flange bolt tensioner according to any one of claims 3 to 8, characterized in that: The clamping mechanism comprises a parallel clamping jaw (35) fixedly connected to the mounting plate (5), and the inner side surfaces of the two clamping plates (36) of the parallel clamping jaw (35) are respectively provided with a limiting assembly, and the limiting assembly comprises two limiting plates (37) symmetrical along the center line of the clamping plate (36), and the angle between the two limiting plates (37) is greater than or equal to 90°.

10. The reverse flange bolt tensioner movable lifting support platform according to claim 9, characterized in that: A butterfly spring (32) is provided between the parallel clamping jaws (35) and the mounting plate (5).

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