Pump tower hoisting positioning structure

Abstract

The invention relates to a pump tower hoisting positioning structure which comprises a positioning bottom frame, a pair of movable side plates arranged on the two sides of the positioning bottom frame and an upper positioning plate arranged on the movable side plates and located above a base, the clamping face of the upper positioning plate is an arc-shaped face matched with the peripheral wall of a pump liquid pipe, and the positioning bottom frame is provided with an arc-shaped positioning guide groove; the axis of the positioning guide groove coincides with the axis of the base, the movable side plate comprises a lower side plate and an upper side plate which is connected to the lower side plate in a sliding mode in the vertical direction, a sliding block which is connected to the positioning guide groove in a sliding mode is fixed to the lower end face of the lower side plate in a protruding mode, and the positioning bottom frame is provided with a rotating mechanism which drives the lower side plate to slide around the axis of the base. A lifting part for driving the upper side plate to slide is arranged between the upper side plate and the lower side plate, the upper positioning plate is slidably connected to the upper side plate in the radial direction of the liquid pumping pipe, the lower portion of the upper positioning plate is slidably connected with a supporting bottom plate in the radial direction, the sliding direction of the supporting bottom plate is parallel to the sliding direction of the upper positioning plate, and the upper end face of the supporting bottom plate abuts against the lower end face of the liquid pumping pipe.

Description

Technical Field

[0001] The present application relates to the technical field of low-temperature storage devices, and in particular to a pump tower crane positioning structure. Background Art

[0002] Liquefied Natural Gas (LNG), whose main component is methane, is recognized as the cleanest fossil energy on earth. When transporting natural gas, in order to transport it over long distances more economically, the gas is usually cooled to a low temperature and transported as liquefied gas. The liquefied cryogenic liquid is stored and transported in a special cryogenic storage tank, and a pump tower is set inside the tank as a channel for the cryogenic liquid to enter and exit the tank.

[0003] In the prior art, the pump tower includes three riser structures fixed to each other by cross beams, and the three risers are arranged in a triangular cross section. Each riser is hollow, and the three risers are respectively a liquid inlet pipe, a liquid measuring pipe, and a liquid pump pipe. The installation method of the pump tower is usually as follows: the top of the pump tower is fixed to the top wall of the storage tank, and the bottom of the liquid pump pipe is limited, and the bottom limit structure is a base for inserting the bottom of the liquid pump pipe.

[0004] During the installation of the pump tower, the upper part of the pump tower is hoisted by hoisting equipment to facilitate the docking of the pump liquid pipe and the base. During the hoisting process, the angles of the three risers need to be adjusted for alignment and fixation. In the prior art, due to the long length of the pump tower, it is often difficult to ensure efficiency and accuracy during the angle adjustment process, resulting in prolonged installation time and low overall installation efficiency. Therefore, further improvement is needed. Summary of the invention

[0005] In order to improve the installation efficiency of the pump tower, the present application provides a pump tower hoisting and positioning structure.

[0006] The present application provides a pump tower hoisting positioning structure adopts the following technical solution: A pump tower hoisting positioning structure comprises a positioning bottom frame, a pair of movable side plates arranged on both sides of the positioning bottom frame and respectively located on both sides of a pump liquid pipe, and an upper positioning plate arranged on the movable side plate and located above a base to clamp and fix the lower part of the pump liquid pipe in position, the clamping surface of the upper positioning plate is an arc surface adapted to the outer peripheral wall of the pump liquid pipe, the positioning bottom frame is provided with an arc-shaped positioning guide groove, the axis of the positioning guide groove coincides with the axis of the base, the movable side plate comprises a lower side plate and an upper side plate connected to the lower side plate along a vertical sliding manner and located above the lower side plate, the lower end surface of the lower side plate is protruding and fixed with a sliding The upper end surface of the support plate abuts against the lower end surface of the pump tube, and the upper positioning plate is provided with a second driving member that drives the support plate to slide.

[0007] By adopting the above technical solution, under normal conditions, the supporting bottom plate slides and protrudes out of the lower inner wall of the upper positioning plate. When installing the pump tower, the positioning bottom frame is first moved to the installation position, and the upper part of the pump liquid pipe is lifted by the lifting equipment so that the lower end surface of the pump liquid pipe is located above the base and the supporting bottom plate. Then the first driving member drives the upper positioning plate to slide in the direction close to the pump liquid pipe, so that the clamping surfaces of the two upper positioning plates abut against the outer peripheral wall of the pump liquid pipe, and the upper end surface of the supporting bottom plate abuts against the lower end surface of the pump liquid pipe, so as to clamp and position the pump liquid pipe. After the pump liquid pipe and the base are coaxial, the lifting member drives the upper side plate to move up, thereby bringing The first positioning plate and the supporting bottom plate are moved upward together so that the lifting rope of the lifting equipment is in a relaxed state, and then the movable side plate is driven to slide around the axis of the base through the rotating mechanism, so that the upper positioning plate and the pump tower can rotate and slide around the axis of the pump liquid pipe together, thereby adjusting the position of the other two risers. After the adjustment is completed, the upper side plate moves downward and resets, and the second driving member drives the supporting bottom plate to slide away from the pump liquid pipe. After the support for the lower end of the pump liquid pipe is removed, the lifting equipment moves downward, and the pump liquid pipe moves downward relative to the upper positioning plate due to its own weight, so that the lower part of the pump liquid pipe is coaxially inserted into the inner hole of the base, effectively improving the installation efficiency of the pump tower.

[0008] Preferably, the upper part of the upper positioning plate is slidably connected with a stop rod along the sliding direction of the supporting base plate, and the lower side wall of the pump liquid pipe is provided with a stop hole for the stop rod to be inserted, and there are multiple stop holes and they are symmetrically distributed around the axis of the pump liquid pipe, and a linkage part located between the upper positioning plate and the upper side plate is provided between the stop rod and the supporting base plate.

[0009] By adopting the above technical solution, in the initial state, one end portion of the supporting base plate protrudes from the clamping surface of the upper positioning plate, and the stop plug rod does not extend out of the clamping surface of the upper positioning plate. When the lower end surface of the pump liquid tube abuts against the upper end surface of the supporting base plate, the movable side plate is first driven by the rotating mechanism to slide around the base axis, so that the upper positioning plate is rotated and adjusted relative to the pump liquid tube, so that the stop plug rod and the stop plug hole are aligned, and the second driving member drives the supporting base plate to slide in the direction close to the pump liquid tube, thereby driving the stop plug rod to slide and be inserted into the stop plug hole through the linkage member, effectively limiting the relative rotation of the upper positioning plate and the pump liquid tube, ensuring that the pump liquid tube remains stable during the adjustment process. After that, the lifting member drives the upper side plate to move up, thereby driving the first positioning plate and the supporting bottom plate to move up together, so that the lifting rope of the lifting equipment is in a relaxed state, and again drives the movable side plate to slide around the axis of the base through the rotating mechanism, so that the upper positioning plate and the pump tower can rotate and slide around the axis of the pump liquid pipe together, thereby adjusting the position of the other two risers. After the adjustment is completed, the upper side plate moves down and resets, and the second driving member drives the supporting bottom plate to slide away from the pump liquid pipe, so that the supporting bottom plate and the stop rod retract. After the support for the lower end of the pump liquid pipe is removed, the lifting equipment moves down, and the pump liquid pipe moves down relative to the upper positioning plate due to its own weight, so that the lower part of the pump liquid pipe is coaxially inserted in the inner hole of the base.

[0010] Preferably, the linkage member comprises a fixed vertical rod fixedly connected between the stop plug rod and the supporting base plate.

[0011] By adopting the above technical solution, the fixed vertical rod connects the stop rod and the supporting base plate as one, so that when the supporting base plate slides radially under the drive of the second driving member, the stop rod can be driven to slide synchronously, ensuring the coordinated movements of the stop rod and the supporting base plate. When the supporting base plate slides toward the direction close to the pump liquid pipe, the stop rod can be accurately inserted into the stop socket, effectively limiting the relative rotation between the upper positioning plate and the pump liquid pipe, thereby improving the positioning accuracy and stability during the installation of the pump tower.

[0012] Preferably, the end of the stop rod located on one side of the pump fluid pipe is provided with a positioning laser transmitter for emitting laser to the stop socket, and the end of the stop rod located on the other side of the pump fluid pipe is provided with a positioning laser receiver.

[0013] By adopting the above technical solution, an alignment laser transmitter and an alignment laser receiver are arranged at the end of the stop rod, which can accurately determine the position of the stop socket by transmitting and receiving laser signals before the stop rod is inserted into the stop socket, thereby effectively improving the alignment accuracy of the stop rod and the stop socket and improving the alignment efficiency.

[0014] Preferably, the upper positioning plate is provided with a mounting groove on the side wall near the pump liquid pipe, the upper positioning plate is provided with a resistance increasing sac fixed to the inner wall of the mounting groove, the upper positioning plate is fixedly connected to the side wall away from the pump liquid pipe with a mounting plate, the mounting plate is fixedly connected to an air regulating box, the inner cavity of the air regulating box is sealed and slidably connected with a piston plate which divides the inner cavity into a first chamber and a second chamber, the first chamber is located at one end of the air regulating box close to the upper positioning plate, the end surface of the air regulating box close to the upper positioning plate is provided with a sliding hole connected to the first chamber, the piston plate is fixedly connected with a movable rod which passes through the sliding hole, a connecting arm located between the air regulating box and the upper positioning plate is fixedly connected between the movable rod and the stop plug rod, the air regulating box is provided with an air pipe connected between the second chamber and the inner cavity of the resistance increasing sac, when the stop plug rod is inserted into the stop plug hole, the resistance increasing sac is in a deflated state and thus retracts into the mounting groove.

[0015] By adopting the above technical solution, in the initial state, one end portion of the supporting base plate protrudes from the clamping surface of the upper positioning plate, the stop plug rod does not extend out of the clamping surface of the upper positioning plate, and the resistance-increasing sac is in a normal state. At this time, the resistance-increasing sac is not exposed from the clamping surface of the upper positioning plate, so as to avoid the resistance-increasing sac body from hindering the relative movement between the upper positioning plate and the pump liquid pipe, so as to facilitate the alignment adjustment of the stop plug rod and the stop socket. When the second driving member drives the supporting base plate to slide toward the direction close to the pump liquid pipe and drives the stop plug rod to slide and be inserted into the stop socket, the piston plate slides toward the direction close to the pump liquid pipe. , which increases the volume of the second chamber, and extracts the gas in the resistance-increasing bladder through the air pipe, so that the resistance-increasing bladder is in a deflated state. When the second driving member drives the supporting bottom plate to slide away from the pump liquid tube and retract into the clamping surface of the upper positioning plate, the piston plate slides away from the pump liquid tube, so that the volume of the second chamber is reduced, and the gas is squeezed into the resistance-increasing bladder through the air pipe, thereby causing the resistance-increasing bladder to expand and the outer wall of the resistance-increasing bladder to press against the outer wall of the pump liquid tube, effectively reducing the possibility of the pump liquid tube rotating around its own axis during the process of moving downward and inserting it into the base.

[0016] Preferably, the mounting groove is an arc-shaped groove, and the resistance-increasing sac is correspondingly arranged in an arc shape. The resistance-increasing sac is provided with a anti-rotation rib protruding from the outer peripheral wall near the pump liquid tube, and the length direction of the anti-rotation rib is arranged vertically. There are multiple anti-rotation ribs and they are spaced apart around the axis of the resistance-increasing sac.

[0017] By adopting the above technical solution, a plurality of anti-rotation ridges are spaced around the axis of the resistance-increasing sac and extend vertically, which effectively increases the anti-rotation friction between the resistance-increasing sac and the pump liquid pipe, preventing the pump liquid pipe from rotating during the process of descending relative to the upper positioning plate, thereby ensuring accurate positioning during the installation of the pump tower.

[0018] Preferably, it also includes a lower positioning plate arranged on the movable side plate and located below the upper positioning plate to clamp and fix the base. The lower positioning plate is connected to the lower side plate by radial sliding along the base. The clamping surface of the lower positioning plate is an arc-shaped surface adapted to the upper outer peripheral wall of the base. The lower side plate is provided with a third driving member for driving the lower positioning plate to slide.

[0019] By adopting the above technical solution, the two lower positioning plates clamp the base, so that after the two upper positioning plates clamp the pump liquid pipe, the pump liquid pipe and the base are in a coaxial state, thereby improving the installation accuracy.

[0020] Preferably, the rotating mechanism includes a pair of arc-shaped racks respectively fixedly connected to the lower outer walls of the two lower side plates, a transmission gear rotatably connected to the positioning bottom frame and meshing with the arc-shaped rack, and a driving motor fixedly connected to the positioning bottom frame and driving the transmission gear to rotate, and the arc-shaped rack and the base are coaxial.

[0021] By adopting the above technical solution, the driving motor drives the transmission gear to rotate. Since the arc-shaped rack is engaged with the transmission gear and the arc-shaped rack is fixed to the lower outer wall of the lower side plate, the movable side plate can be driven to rotate around the base axis.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: Under normal conditions, the support bottom plate slides and protrudes out of the lower inner wall of the upper positioning plate. When installing the pump tower, first move the positioning bottom frame to the installation position, and lift the upper part of the pump liquid pipe by the lifting equipment so that the lower end surface of the pump liquid pipe is located above the base and the support bottom plate. Then the first driving member drives the upper positioning plate to slide in the direction close to the pump liquid pipe, so that the clamping surfaces of the two upper positioning plates abut against the outer peripheral wall of the pump liquid pipe, and the upper end surface of the support bottom plate abuts against the lower end surface of the pump liquid pipe, so as to clamp and position the pump liquid pipe. After the pump liquid pipe and the base are coaxial, the lifting member drives the upper side plate to move up, thereby driving the first positioning plate The upper side plate is moved upward together with the supporting bottom plate so that the lifting rope of the lifting equipment is in a relaxed state. Subsequently, the movable side plate is driven to slide around the axis of the base through the rotating mechanism, so that the upper positioning plate and the pump tower can rotate and slide around the axis of the pump liquid pipe together, thereby adjusting the positions of the other two risers. After the adjustment is completed, the upper side plate is moved downward and reset, and the second driving member drives the supporting bottom plate to slide away from the pump liquid pipe. After the support for the lower end of the pump liquid pipe is removed, the lifting equipment is moved downward, and the pump liquid pipe moves downward relative to the upper positioning plate due to its own weight, so that the lower part of the pump liquid pipe is coaxially inserted into the inner hole of the base, effectively improving the installation efficiency of the pump tower; In the initial state, one end portion of the supporting base plate protrudes from the clamping surface of the upper positioning plate, the stop plug rod does not extend out of the clamping surface of the upper positioning plate, and the resistance-increasing sac is in a normal state. At this time, the resistance-increasing sac is not exposed from the clamping surface of the upper positioning plate, so as to avoid the resistance-increasing sac body from hindering the relative movement between the upper positioning plate and the pump liquid pipe, so as to facilitate the alignment adjustment of the stop plug rod and the stop plug hole. When the second driving member drives the supporting base plate to slide toward the direction close to the pump liquid pipe and drives the stop plug rod to slide and be inserted into the stop plug hole, the piston plate slides toward the direction close to the pump liquid pipe, so that the second The volume of the chamber increases, and the gas in the resistance increasing bladder is extracted through the air pipe, so that the resistance increasing bladder is in a deflated state. When the second driving member drives the supporting bottom plate to slide toward the pump liquid pipe and retract into the clamping surface of the upper positioning plate, the piston plate slides away from the pump liquid pipe, so that the volume of the second chamber decreases, and the gas is squeezed into the resistance increasing bladder through the air pipe, thereby causing the resistance increasing bladder to expand and the outer wall of the resistance increasing bladder to press against the outer wall of the pump liquid pipe, effectively reducing the possibility of the pump liquid pipe rotating around its own axis during the process of moving downward and inserting it into the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The present invention is a schematic diagram of the overall structure of a pump tower crane positioning structure.

[0024] Figure 2 It is a structural diagram of the rotating mechanism.

[0025] Figure 3 It is a structural diagram of the transmission component.

[0026] Figure 4 It is a structural schematic diagram of the upper positioning plate.

[0027] Figure 5 It is a schematic diagram of the structure of the drag-enhancing bladder.

[0028] Description of the accompanying drawings: 10, pump liquid pipe; 101, stopper plug hole; 20, liquid inlet pipe; 30, liquid measuring tube; 40, base; 1, positioning bottom frame; 11, arc-shaped arm; 12, horizontal arm; 13, positioning guide groove; 2, movable side plate; 21, lower side plate; 22, upper side plate; 23, vertical guide rod; 24, jack; 25, third oil cylinder; 26, first oil cylinder; 3, upper positioning plate; 31, upper guide rod; 32, supporting bottom plate; 33, second oil cylinder; 34, stopper plug rod; 34 1. Alignment laser transmitter; 342. Alignment laser receiver; 35. Fixed vertical rod; 36. Resistance-increasing capsule; 361. Anti-rotation ridge; 37. Mounting plate; 38. Air regulating box; 381. Piston plate; 382. First chamber; 383. Second chamber; 384. Movable rod; 385. Connecting arm; 39. Air pipe; 4. Lower positioning plate; 41. Lower guide rod; 5. Rotating mechanism; 51. Arc rack; 52. Transmission gear; 53. Driving motor; 54. Transmission assembly. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-5 This application is described in further detail.

[0030] The present application embodiment discloses a pump tower hoisting positioning structure, referring to Figure 1 It includes a positioning bottom frame 1, a pair of movable side plates 2 arranged on both sides of the positioning bottom frame 1 and respectively located on both sides of the pump liquid pipe 10, an upper positioning plate 3 arranged on the movable side plate 2 and located above the base 40 to clamp and fix the lower part of the pump liquid pipe 10, and a lower positioning plate 4 arranged on the movable side plate 2 and located below the upper positioning plate 3 to clamp and fix the base 40.

[0031] Reference Figure 1 , Figure 2 The positioning bottom frame 1 includes a pair of arc-shaped arc-shaped arms 11 and a cross arm 12 fixedly connected between the rear ends of the two arc-shaped arms 11, so that the front end of the positioning bottom frame 1 is open, the two arc-shaped arms 11 are symmetrically arranged, and the positioning bottom frame 1 is detachably connected to the bottom wall of the storage tank by bolts. The upper end surface of the arc-shaped arm 11 is provided with an arc-shaped positioning guide groove 13, and the positioning guide grooves 13 on the two arc-shaped arms 11 are coaxial and located on the same circular path.

[0032] The movable side panel 2 includes a lower side panel 21 and an upper side panel 22 which is vertically slidably connected to the lower side panel 21 and is located above the lower side panel 21. A slider which is slidably connected to the positioning guide groove 13 is protruded and fixed on the lower end surface of the lower side panel 21. A vertical guide rod 23 which is slidably inserted in the lower side panel 21 is fixedly connected to the lower end surface of the upper side panel 22. A lifting member for driving the upper side panel 22 to slide is arranged between the upper side panel 22 and the lower side panel 21. In the present embodiment, the lifting member is a jack 24 which is fixedly connected to the lower side panel 21. The telescopic rod of the jack 24 is fixedly connected to the upper side panel 22.

[0033] The arc-shaped arm 11 is provided with a rotating mechanism 5 for driving the lower side plate 21 to slide around the axis of the base 40. The rotating mechanism 5 includes a pair of arc-shaped racks 51 respectively fixedly connected to the lower outer walls of the two lower side plates 21, a transmission gear 52 rotatably connected to the arc-shaped arm 11 and meshed with the arc-shaped racks 51, and a driving motor 53 fixedly connected to the arc-shaped arm 11 and driving the transmission gear 52 to rotate. The driving motor 53 is a servo motor. The arc-shaped rack 51 and the base 40 are coaxial. In this embodiment, two driving motors 53 are correspondingly provided. In other embodiments, the driving motor 53 drives one of the transmission gears 52 to rotate. Figure 3 A transmission assembly 54 for driving the two transmission gears 52 to rotate in the same direction is provided between the two transmission gears 52 . The transmission assembly 54 can adopt a plurality of sprockets in combination with a chain structure or a plurality of pulleys in combination with a transmission belt structure to realize the rotation of the two transmission gears 52 .

[0034] Reference Figure 2 The lower positioning plate 4 is connected to the lower side plate 21 by sliding along the radial direction of the base 40. The clamping surface of the lower positioning plate 4 is an arc surface adapted to the outer peripheral wall of the upper part of the base 40. The outer side wall of the lower positioning plate 4 is fixedly connected with a lower guide rod 41 that is slidingly penetrated through the lower side plate 21. The lower side plate 21 is provided with a third driving member that drives the lower positioning plate 4 to slide. In this embodiment, the third driving member is a third oil cylinder 25. The cylinder body of the third oil cylinder 25 is fixedly connected to the outer side wall of the lower side plate 21. The piston rod of the third oil cylinder 25 penetrates the lower side plate 21 and is fixedly connected to the outer side wall of the lower positioning plate 4.

[0035] The upper positioning plate 3 is connected to the upper side plate 22 by sliding along the radial direction of the pump liquid pipe 10. The clamping surface of the upper positioning plate 3 is an arc surface adapted to the outer peripheral wall of the pump liquid pipe 10. The outer side wall of the upper positioning plate 3 is fixedly connected with an upper guide rod 31 that is slidingly penetrated through the upper side plate 22. The upper side plate 22 is provided with a first driving member that drives the upper positioning plate 3 to slide. In this embodiment, the first driving member is a first oil cylinder 26. The cylinder body of the first oil cylinder 26 is fixedly connected to the outer side wall of the upper side plate 22. The piston rod of the first oil cylinder 26 penetrates the upper side plate 22 and is fixedly connected to the outer side wall of the upper positioning plate 3.

[0036] Reference Figure 2 , Figure 4 The lower part of the upper positioning plate 3 is connected to a support base plate 32 for supporting the pump liquid pipe 10 in a radially sliding manner. The lower side wall of the upper positioning plate 3 is provided with a through groove for the support base plate 32 to slide through. The sliding direction of the support base plate 32 is parallel to the sliding direction of the upper positioning plate 3. The upper end surface of the support base plate 32 abuts against the lower end surface of the pump liquid pipe 10. The upper positioning plate 3 is provided with a second driving member for driving the support base plate 32 to slide. In this embodiment, the second driving member is a second oil cylinder 33. The cylinder body of the second oil cylinder 33 is fixedly connected to the lower outer wall of the upper positioning plate 3, and the piston rod of the second oil cylinder 33 is fixedly connected to the end of the support base plate 32 outside the upper positioning plate 3.

[0037] The upper portion of the upper positioning plate 3 is slidably connected with a stop plug rod 34 along the sliding direction of the support bottom plate 32. The side wall of the upper positioning plate 3 is provided with a through hole for the stop plug rod 34 to slide through. The stop plug rod 34 is located above the support bottom plate 32. The lower side wall of the pump liquid pipe 10 is provided with a stop plug hole 101 for the stop plug rod 34 to be inserted. There are multiple stop plug holes 101 and they are symmetrically distributed around the axis of the pump liquid pipe 10. A linkage member located between the upper positioning plate 3 and the upper side plate 22 is provided between the stop plug rod 34 and the support bottom plate 32. In this embodiment, the linkage member is a fixed vertical rod 35 fixedly connected between the stop plug rod 34 and the support bottom plate 32. An installation hole is axially opened at the end of the stop rod 34 close to the pump liquid pipe 10, and a positioning laser transmitter 341 for emitting laser to the stop hole 101 is fixed in the installation hole of the stop rod 34 on one side of the pump liquid pipe 10, and an alignment laser receiver 342 is fixed in the installation hole of the stop rod 34 on the other side of the pump liquid pipe 10.

[0038] Reference Figure 4 , Figure 5 The upper positioning plate 3 is provided with a mounting groove on the side wall near the pump liquid pipe 10. The mounting groove is an arc-shaped groove. The upper positioning plate 3 is provided with a resistance-increasing capsule 36 fixed to the inner wall of the mounting groove. The resistance-increasing capsule 36 is correspondingly arranged in an arc shape. The resistance-increasing capsule 36 is provided with a rotation-stopping rib 361 protruding from the outer peripheral wall near the pump liquid pipe 10. The length direction of the rotation-stopping rib 361 is arranged vertically. There are multiple rotation-stopping ribs 361 and they are spaced around the axis of the resistance-increasing capsule 36. The upper part of the side wall of the upper positioning plate 3 away from the pump liquid pipe 10 is fixedly connected with a mounting plate 37 located above the upper side plate 22. The lower end surface of the mounting plate 37 is fixedly connected with a gas regulating box 38 located above the upper side plate 22. The inner cavity of the gas regulating box 38 is sealed and slidably connected with a piston plate 381 that divides the inner cavity into a first chamber 382 and a second chamber 383. The first chamber 382 is located at one end of the gas regulating box 38 close to the upper positioning plate 3. The end surface of the gas regulating box 38 close to the upper positioning plate 3 is provided with a sliding hole connected to the first chamber 382, ​​and the piston plate 381 is fixedly connected with a movable rod 384 passing through the sliding hole, and the inner diameter of the sliding hole is larger than the outer diameter of the movable rod 384. A connecting arm 385 located between the gas regulating box 38 and the upper positioning plate 3 is fixedly connected between the movable rod 384 and the stop plug rod 34.

[0039] The air regulating box 38 is provided with an air pipe 39 connected between the second chamber 383 and the inner cavity of the resistance increasing sac 36. In the initial state, one end portion of the support base plate 32 protrudes from the clamping surface of the upper positioning plate 3, the stop plug rod 34 is retracted in the through hole and does not extend out of the clamping surface of the upper positioning plate 3, the resistance increasing sac 36 is in a normal state, and the resistance increasing sac 36 is not exposed to the clamping surface of the upper positioning plate 3; when the second oil cylinder 33 drives the support base plate 32 to slide toward the direction close to the pump liquid pipe 10, driving the stop plug rod 34 to slide and insert in the stop plug hole 101, the piston plate 381 moves toward the direction close to the pump liquid pipe 10 The second cylinder 33 drives the support base plate 32 to slide toward the pump fluid pipe 10 and retract into the clamping surface of the upper positioning plate 3, and the piston plate 381 slides away from the pump fluid pipe 10, so that the volume of the second chamber 383 is reduced, and the gas is squeezed into the resistance increasing bladder 36 through the air pipe 39, so that the resistance increasing bladder 36 is expanded and the outer wall of the resistance increasing bladder 36 is pressed against the outer peripheral wall of the pump fluid pipe 10.

[0040] The implementation principle of the pump tower hoisting positioning structure of the embodiment of the present application is as follows: in the initial state, one end portion of the supporting bottom plate 32 protrudes from the clamping surface of the upper positioning plate 3, the stop plug rod 34 does not extend from the clamping surface of the upper positioning plate 3, and the resistance-increasing capsule 36 is in a normal state. When installing the pump tower, first move the positioning bottom frame 1 to the installation position, and the piston rod of the third oil cylinder 25 is extended to drive the lower positioning plate 4 to slide toward the base 40, so that the two lower positioning plates 4 are clamped on the base 40, and the positioning bottom frame 1 is fixed after the lower positioning plate 4 is clamped and positioned on the base 40; The upper part of the pump liquid pipe 10 is lifted by the lifting rope of the lifting equipment, so that the lower end surface of the pump liquid pipe 10 is located above the base 40 and the supporting bottom plate 32, and then the piston rod of the first oil cylinder 26 is extended to drive the upper positioning plate 3 to slide toward the pump liquid pipe 10, so that the clamping surfaces of the two upper positioning plates 3 are attached to the outer peripheral wall of the pump liquid pipe 10, and the upper end surface of the supporting bottom plate 32 is in contact with the lower end surface of the pump liquid pipe 10, so as to clamp and position the pump liquid pipe 10, so that the pump liquid pipe 10 and the base 40 are coaxial; Then, the movable side plate 2 is driven to slide around the axis of the base 40 through the rotating mechanism 5, so that the upper positioning plate 3 is rotated and adjusted relative to the pump liquid pipe 10. After the stop plug rod 34 and the stop plug hole 101 are aligned through the cooperation of the alignment laser transmitter 341 and the alignment laser receiver 342, the movable side plate 2 stops rotating, and the piston rod of the second oil cylinder 33 contracts to drive the supporting bottom plate 32 to slide toward the pump liquid pipe 10, thereby driving the stop plug rod 34 to slide and be inserted into the stop plug hole 101 through the fixed vertical rod 35, effectively limiting the relative rotation of the upper positioning plate 3 and the pump liquid pipe 10. At this time, the resistance-increasing capsule 36 is in a deflated state; Then the jack 24 drives the upper side plate 22 to move upward, thereby driving the first positioning plate and the supporting bottom plate 32 to move upward together, so as to lift the pump tower. At this time, the lifting rope of the lifting equipment is in a relaxed state, and the movable side plate 2 is driven to slide around the axis of the base 40 through the rotating mechanism 5 again, so that the upper positioning plate 3 and the pump tower can rotate and slide around the axis of the pump liquid pipe 10 together, so as to adjust the position of the other two risers. After the adjustment is completed, the upper side plate 22 moves downward to reset, and the lifting rope of the lifting equipment resumes the lifting state of the pump tower; When the upper side plate 22 moves downward, the piston rod of the second oil cylinder 33 extends to drive the support bottom plate 32 to slide inwardly into the through groove away from the pump liquid pipe 10. After the support for the lower end of the pump liquid pipe 10 is removed, the fixed vertical rod 35, the stop plug rod 34, the connecting arm 385, and the movable rod 384 cooperate to drive the piston plate 381 to slide inwardly away from the pump liquid pipe 10, so that the volume of the second chamber 383 is reduced, and the gas is squeezed into the resistance-increasing sac 36 through the air pipe 39, so that the resistance-increasing sac 36 expands and the resistance-increasing sac 36 is increased. The outer wall of the body 36 is pressed against the outer peripheral wall of the pump liquid pipe 10, and the lifting rope of the lifting equipment moves downward. The pump liquid pipe 10 moves downward relative to the upper positioning plate 3 due to its own weight, so that the lower part of the pump liquid pipe 10 is coaxially inserted into the inner hole of the base 40, and the outer wall of the resistance-increasing sac 36 is pressed against the outer peripheral wall of the pump liquid pipe 10, effectively reducing the possibility of the pump liquid pipe 10 rotating around its own axis during the process of moving downward and being inserted into the base 40; after the pump tower is installed, the piston rod of the first oil cylinder 26 is reset, the piston rod of the third oil cylinder 25 is reset, and the positioning bottom frame 1 can be removed.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pump tower crane positioning structure, characterized in that: The invention comprises a positioning bottom frame (1), a pair of movable side plates (2) arranged on both sides of the positioning bottom frame (1) and respectively located on both sides of the pump liquid pipe (10), and an upper positioning plate (3) arranged on the movable side plate (2) and located above the base (40) to clamp and fix the lower part of the pump liquid pipe (10), wherein the clamping surface of the upper positioning plate (3) is an arc surface adapted to the outer peripheral wall of the pump liquid pipe (10), the positioning bottom frame (1) has an arc-shaped positioning guide groove (13), the axis of the positioning guide groove (13) coincides with the axis of the base (40), the movable side plate (2) comprises a lower side plate (21) and an upper side plate (22) vertically slidably connected to the lower side plate (21) and located above the lower side plate (21), the lower end surface of the lower side plate (21) protrudes and is fixed with a sliding connection to the positioning guide groove The bottom frame (13) is provided with a rotating mechanism (5) for driving the lower side plate (21) to slide around the axis of the base (40); a lifting member for driving the upper side plate (22) to slide is provided between the upper side plate (22) and the lower side plate (21); the upper positioning plate (3) is connected to the upper side plate (22) by radial sliding along the pump liquid pipe (10); the upper side plate (22) is provided with a first driving member for driving the upper positioning plate (3) to slide; the lower part of the upper positioning plate (3) is connected to the supporting bottom plate (32) by radial sliding; the sliding direction of the supporting bottom plate (32) is parallel to the sliding direction of the upper positioning plate (3); the upper end surface of the supporting bottom plate (32) abuts against the lower end surface of the pump liquid pipe (10); and the upper positioning plate (3) is provided with a second driving member for driving the supporting bottom plate (32) to slide.

2. A pump tower hoisting positioning structure according to claim 1, characterized in that: The upper portion of the upper positioning plate (3) is slidably connected to a stop plug rod (34) along the sliding direction of the supporting bottom plate (32); a stop plug hole (101) for inserting the stop plug rod (34) is provided on the lower side wall of the pump liquid pipe (10); a plurality of stop plug holes (101) are provided and are symmetrically distributed around the axis of the pump liquid pipe (10); and a linkage member located between the upper positioning plate (3) and the upper side plate (22) is provided between the stop plug rod (34) and the supporting bottom plate (32).

3. A pump tower hoisting positioning structure according to claim 2, characterized in that: The linkage member comprises a fixed vertical rod (35) fixedly connected between the stop plug rod (34) and the supporting bottom plate (32).

4. A pump tower hoisting and positioning structure according to claim 2, characterized in that: An alignment laser emitter (341) for emitting laser light to the stop socket (101) is provided at the end of the stop plug rod (34) located on one side of the pump liquid pipe (10), and an alignment laser receiver (342) is provided at the end of the stop plug rod (34) located on the other side of the pump liquid pipe (10).

5. A pump tower hoisting and positioning structure according to claim 2, characterized in that: The upper positioning plate (3) is provided with a mounting groove on a side wall close to the pump liquid pipe (10), and the upper positioning plate (3) is provided with a resistance increasing sac (36) fixed to the inner wall of the mounting groove. The side wall of the upper positioning plate (3) away from the pump liquid pipe (10) is fixedly connected to a mounting plate (37), and the mounting plate (37) is fixedly connected to a gas regulating box (38). The inner cavity of the gas regulating box (38) is sealingly and slidably connected to a piston plate (381) that divides the inner cavity into a first chamber (382) and a second chamber (383). The first chamber (382) is located at one end of the gas regulating box (38) close to the upper positioning plate (3), and the gas regulating box (38) is close to the upper positioning plate (3). The end surface of the positioning plate (3) is provided with a sliding hole connected to the first chamber (382); the piston plate (381) is fixedly connected with a movable rod (384) passing through the sliding hole; a connecting arm (385) located between the air regulating box (38) and the upper positioning plate (3) is fixedly connected between the movable rod (384) and the stop plug rod (34); the air regulating box (38) is provided with an air pipe (39) connected between the second chamber (383) and the inner cavity of the resistance increasing sac (36); when the stop plug rod (34) is inserted into the stop plug hole (101), the resistance increasing sac (36) is in a deflated state and is retracted into the mounting groove.

6. A pump tower hoisting and positioning structure according to claim 5, characterized in that: The mounting groove is an arc-shaped groove, and the resistance-increasing sac (36) is arranged in an arc shape accordingly. The resistance-increasing sac (36) is provided with a rotation-stopping ridge (361) protruding from the outer peripheral wall close to the pump liquid tube (10), and the length direction of the rotation-stopping ridge (361) is arranged vertically. A plurality of rotation-stopping ridges (361) are arranged and are spaced apart around the axis of the resistance-increasing sac (36).

7. A pump tower hoisting and positioning structure according to claim 1, characterized in that: It also includes a lower positioning plate (4) arranged on the movable side plate (2) and located below the upper positioning plate (3) to clamp and fix the base (40), the lower positioning plate (4) being connected to the lower side plate (21) by radial sliding along the base (40), the clamping surface of the lower positioning plate (4) being an arcuate surface adapted to the upper peripheral wall of the base (40), and the lower side plate (21) being provided with a third driving member for driving the lower positioning plate (4) to slide.

8. The pump tower hoisting positioning structure according to claim 1, characterized in that: The rotating mechanism (5) comprises a pair of arc-shaped racks (51) respectively fixedly connected to the lower outer walls of the two lower side plates (21), a transmission gear (52) rotatably connected to the positioning bottom frame (1) and meshing with the arc-shaped racks (51), and a driving motor (53) fixedly connected to the positioning bottom frame (1) and driving the transmission gear (52) to rotate. The arc-shaped rack (51) and the base (40) are coaxial.

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