Deep shaft large-diameter high-strength steel pipe installation operation platform device

Abstract

The utility model discloses a deep shaft large-diameter high-strength steel pipe installation operation platform device which comprises a first supporting beam and a second supporting beam which are vertically arranged in parallel, the top of the first supporting beam is fixedly connected with a seam pressing operation plate, and the center of the seam pressing operation plate is rotatably connected with a hydraulic cylinder supporting rod through a rotating mechanism. First hydraulic cylinders are arranged at the two ends of the hydraulic cylinder supporting rod, a hoisting assembly is connected to the top of the rotating mechanism through an electric chain hoist, a welding operation plate is fixedly connected to the top face of the second supporting beam, an up-down crawling ladder is arranged between the seam pressing operation plate and the welding operation plate, and a sliding rail is annularly arranged on the welding operation plate with the center of the welding operation plate as the circle center. The sliding rail is slidably connected with a welding operation room through a walking mechanism, and the bottom of each end of the first supporting beam and the bottom of each end of the second supporting beam are each provided with a limiting adjusting mechanism. The operating platform solves the problems of low efficiency, high safety risk and the like caused by the fact that a traditional operating platform is temporarily fixed through a lock.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft steel pipe installation equipment, and particularly relates to an installation operation platform device for large-diameter high-strength steel pipes in deep shafts. Background Art

[0002] Generally, the height of the diversion shaft of a hydropower station ranges from dozens of meters to hundreds of meters. When installing the penstock in the shaft, single-section steel pipes are hoisted and lowered, and assembled and welded in the shaft. Therefore, an operation platform usually needs to be built to facilitate the construction in the shaft. However, the traditional operation platform has the following difficulties during underground construction:

[0003] 1. At present, manual welding is basically used for welding steel pipes underground. However, due to the relatively thick wall thickness of high-strength steel pipes in deep shafts, the welding workload is large, and multiple workers are required for welding. The welding efficiency is low, consuming a large amount of manpower and time. Moreover, the smoke and dust generated by manual welding are difficult to disperse in the deep shaft, which is harmful to the health of the operators.

[0004] 2. Since workers need to perform high-altitude operations on the working platform, when the workers perform actions such as climbing up and down ladders, walking, seam pressing, and welding operations, the operation platform is prone to shaking, which affects the stability of the operation platform. It may bump into the inner wall of the steel pipe and damage the steel pipe, and there are also relatively large safety risks. The personal safety of the workers is difficult to guarantee, affecting the construction progress.

[0005] 3. Since fixing parts are not allowed to be welded on the inner wall of high-strength steel pipes, the operation platform must be fixed in other ways. Currently, the common method is to set up locks (such as wire rope hooks) on the top of the operation platform, and temporarily lock the operation platform at the pipe orifice of the installed steel pipe through the locks. However, affected by the locks on the pipe orifice of the installed steel pipe, the steel pipe to be installed cannot directly fall into position. It needs to stop when it reaches a position 20 cm away from the pipe orifice for alignment. After the workers enter the operation platform and climb to a height to convert the locks, the alignment of the steel pipe to be installed and the installed steel pipe is carried out. Converting the locks manually not only has a high safety risk, but also has low efficiency and high labor intensity, increasing the operation duration in the shaft and affecting the project progress. Content of the Utility Model

[0006] The purpose of the utility model is to provide an installation operation platform device for large-diameter high-strength steel pipes in deep shafts, which solves the problems of heavy manual welding operation, low efficiency, and large pollution of the traditional operation platform, solves the problems of easy shaking and high danger of the operation platform, and solves the problems of affecting the installation efficiency of steel pipes and high safety risks existing in the temporary fixation by using locks.

[0007] An installation operation platform device for large-diameter high-strength steel pipes in deep shafts includes a first support beam and a second support beam which are arranged in parallel up and down.

[0008] The top of the first support beam is fixedly connected with a seam pressing operation plate. A rotating mechanism is arranged at the center of the seam pressing operation plate. The rotating mechanism is rotatably connected with a hydraulic cylinder support rod parallel to the cross-section of the steel pipe. Both ends of the hydraulic cylinder support rod are fixedly connected with a first hydraulic cylinder. The top of the rotating mechanism is connected with a hoisting assembly through a chain electric hoist.

[0009] The top surface of the second support beam is fixedly connected with a welding operation plate. An up-and-down ladder is arranged between the seam pressing operation plate and the welding operation plate. A connecting column is fixedly connected between the center of the top of the welding operation plate and the bottom of the first support beam. The welding operation plate is circumferentially arranged with a sliding track centered on its center. A welding operation room is slidably connected to the sliding track through a traveling mechanism. An automatic submerged arc welding machine for circumferentially welding the pipe seam of the steel pipe is arranged in the welding operation room. A limit adjusting mechanism is arranged at the bottom of each end of the first support beam and the second support beam.

[0010] A further technical solution is that: there is a column located within the sliding track circle between the seam pressing operation plate and the welding operation plate. A positioning seat is arranged on the column. A positioning push rod is arranged on one side of the top of the welding operation room. A connecting claw for connecting the positioning seat is arranged on the telescopic end of the positioning push rod. A supporting wheel is arranged on one side of the top of the welding operation room close to the inner wall of the steel pipe.

[0011] A further technical solution is that: the surface of the sliding track is a smooth arc surface. The traveling mechanism includes an arc groove traveling wheel slidably connected to the sliding track. A driving motor for driving the traveling wheel to rotate is connected to the traveling wheel.

[0012] A further technical solution is that: the limit adjusting mechanism includes a support frame fixedly connected to the bottom surface of the end of the first support beam or the second support beam. A roller is rotatably connected to one side of the support frame close to the inner wall of the steel pipe through a connecting rod. A spring is fixedly connected to the other side of the support frame through a connecting groove. The other end of the spring is fixedly connected to the bottom surface of the first support beam or the second support beam.

[0013] A further technical solution is that: a triangular connecting rod is hinged to the bottom of the support frame. A support shoe is hinged to one end of the triangular connecting rod close to the inner wall of the steel pipe. A second hydraulic cylinder is hinged to the other end of the triangular connecting rod far from the inner wall of the steel pipe. The other end of the second hydraulic cylinder is fixed to the bottom of the first support beam or the second support beam through a connecting frame.

[0014] A further technical solution is that: the hoisting assembly includes a locking beam fixedly connected to the top end of the chain electric hoist. A protection cover plate is fixedly connected to the top of the locking beam. A locking mechanism is telescopically connected to each end of the locking beam. The locking mechanism includes a locking claw slidably connected to the end of the locking beam. A second limit sensor is arranged in the locking claw. A locking card slot is arranged at the bottom of the locking claw. The locking card slot is adapted to the pipe wall of the steel pipe nozzle. A driving assembly for driving the locking claw to expand and contract is connected to the locking claw.

[0015] A further technical solution is that a plurality of lateral limiting wheels are symmetrically arranged at the top of the protective cover plate.

[0016] A further technical solution is that a telescopic ladder is arranged between the protective cover plate and the welding operation plate.

[0017] A further technical solution is that the hoisting assembly further includes an automatic grab beam, and a plurality of groups of mutually adapted alignment mechanisms and grabbing mechanisms are arranged between the automatic grab beam and the protective cover plate; the alignment mechanism includes an insertion shaft arranged at the bottom of the automatic grab beam and an alignment cylinder arranged at the top of the locking beam, and a first limit sensor is arranged in the alignment cylinder; the grabbing mechanism includes a docking lifting lug arranged at the bottom of the automatic grab beam, and two grabbing ear plates arranged in parallel at the top of the locking beam, and a telescopic push rod is fixedly connected to the outside of one of the grabbing ear plates, and through holes and lifting holes for the telescopic shaft on the telescopic push rod to pass through are respectively arranged on the grabbing ear plates and the docking lifting lug.

[0018] A further technical solution is that the mouth of the alignment cylinder is arranged in a trumpet-shaped structure that gradually increases from bottom to top.

[0019] The beneficial effects of the present utility model are as follows:

[0020] 1. The overall automated operation platform has a total of three layers. The top layer is the platform locking layer, which is used for the overall installation and disassembly of the platform. The middle layer is the steel pipe seam pressing layer, which is used for the alignment and seam pressing adjustment of the steel pipes. The bottom layer is the steel pipe welding layer, which is used for the circumferential welding of the steel pipe joints after the seam pressing. The operation platform integrates components such as a hoisting assembly, a locking mechanism, a rotating mechanism, a first hydraulic cylinder, a submerged arc automatic welding machine and a supporting flux automatic recovery machine, an electro-hydraulic control system, and a limit adjustment mechanism. The automated operation of loading and unloading the platform, steel pipe seam pressing, steel pipe welding and other construction processes is realized by remote control, which improves the mechanization and automation level of underground steel pipe installation, and improves work efficiency and quality.

[0021] 2. The rotating mechanism, the hydraulic cylinder support rod and the first hydraulic steel pipe are used for the steel pipe alignment and seam pressing operation. The angle of the hydraulic cylinder support rod is adjusted by controlling the rotating mechanism, and the first hydraulic cylinder is started to push out to correct the misalignment of the steel pipe nozzle, with higher adjustment efficiency, reducing the labor burden of workers, ensuring accurate alignment of the steel pipes, and ensuring the installation quality of the steel pipes.

[0022] 3. A welding operation room equipped with a submerged arc automatic welding machine and a flux automatic recovery machine is adopted. The welding operation room circumferentially travels driven by a sliding track and a traveling mechanism. Workers can sit in the welding operation room to perform welding operations, realizing mechanized operation, greatly reducing the labor burden of welding operations, and the quality of using a submerged arc automatic welding machine is better than manual welding, without generating harmful gases and less pollution.

[0023] 4. Use the limit adjustment mechanism to adjust the position of the operating platform in the steel pipe. When the operating platform is lifted or lowered, the rollers roll on the inner wall of the steel pipe to ensure the overall stable movement of the operating platform and avoid bumping against the inner wall of the steel pipe. During the construction of the operating platform, the second hydraulic cylinder drives the support shoe to support the inner wall of the steel pipe to ensure the overall stability of the operating platform and ensure the safety of underground construction.

[0024] 5. A locking mechanism of a locking beam is used to replace traditional locks (such as wire rope hooks). The locking claw of the locking mechanism is provided with a locking slot that matches the wall of the steel pipe. The locking claw can be extended out of the locking beam or retracted into the locking beam under the drive of the telescopic mechanism, and cooperates with the lifting and lowering of the lifting equipment and the hoisting components to achieve locking and unlocking between the locking beam and the steel pipe. The mechanized operation is achieved through the locking mechanism, and there is no need for workers to go down the well to change locks. It has high safety and does not affect the alignment installation of the steel pipe. It is easy to operate, more efficient, and fixed and stable, ensuring the operating platform and safety.

[0025] The utility model is particularly suitable for the installation of large-diameter high-strength steel pipes with a vertical shaft chamber depth of more than 50 meters and a strength of 600MPa and above. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention is a structural schematic diagram of a deep shaft large-diameter high-strength steel pipe installation operating platform device.

[0027] Figure 2 It is a structural schematic diagram of the locking beam.

[0028] Figure 3 It is a structural schematic diagram of a seam pressing operation board.

[0029] Figure 4 It is a structural schematic diagram of the locking mechanism.

[0030] Figure 5 It is a structural diagram of the automatic beam grabbing system.

[0031] Figure 6 It is a schematic diagram of a preferred embodiment in which the gripping mechanism and the alignment mechanism are connected to each other.

[0032] Figure 7 It is a structural schematic diagram of the limit adjustment mechanism at the bottom of the first support beam.

[0033] Figure 8 This is a schematic diagram of welding operations in the welding operation room.

[0034] Figure 9 This is a schematic diagram of the welding operation room returning to the correct position.

[0035] In the figure:

[0036] 1. Shaft; 2. First support beam; 201. Seam pressing operation plate; 202. Installation column; 203. Connecting plate; 204. Hydraulic cylinder support rod; 205. First hydraulic cylinder; 206. Rotary table; 207. Rotary support; 208. Telescopic ladder; 3. Second support beam; 301. Welding operation plate; 302. Connecting column; 303. Sliding track; 304. Traveling mechanism; 305. Welding operation room; 306. Seat box; 307. Submerged arc automatic welding machine; 3071. Welding nozzle; 3072. Flux hopper; 308. Flux automatic recovery machine; 309. Roller; 310. Column; 311. Positioning seat; 312. Positioning push rod; 313. Connecting claw; 314. Up and down ladder; 4. Locking mechanism; 401. Locking claw; 402. Locking slot; 403. Driving component; 404. Connecting plate; 5. Lifting component; 501. Automatic grab beam; 502. Alignment mechanism; 5021. Insertion shaft; 5022. Alignment cylinder; 503. Grabbing mechanism; 5031. Docking lifting lug; 5032. Lifting hole; 5033. Grabbing ear plate; 5034. Telescopic push rod; 504. Lifting rope; 505. Monitoring camera; 506. Locking beam; 507. Protection cover plate; 508. Lateral limiting wheel; 6. Limit adjusting mechanism; 601. Support frame; 602. Roller; 603. Spring; 604. Triangular connecting rod; 605. Support shoe; 606. Second hydraulic cylinder; 607. Connecting frame; 7. Electro-hydraulic control system; 8. Steel pipe. Detailed implementation mode

[0037] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0038] In the description of the present utility model, it should be noted that, as terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or device referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the utility model.

[0039] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, as terms such as "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two devices. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0040] Referring to Figures 1-9 as shown, a large-diameter high-strength steel pipe installation operation platform device for deep vertical shafts includes a first support beam 2 and a second support beam 3 arranged in parallel up and down,

[0041] As Figure 3 shown, a seam pressing operation plate 201 is fixedly connected to the top of the first support beam 2. A rotating mechanism is arranged at the center of the seam pressing operation plate 201. The rotating mechanism is rotatably connected to a hydraulic cylinder support rod 204 parallel to the cross-section of the steel pipe 8. Both ends of the hydraulic cylinder support rod 204 are fixedly connected to a first hydraulic cylinder 205. The top of the rotating mechanism is connected to a hoisting assembly 5 through a chain electric hoist 209. The hoisting assembly 5 is used for the overall installation and disassembly of the platform. The chain electric hoist 209 is used for lifting and lowering the seam pressing operation plate 201 and the welding operation plate 301. Preferably, two chain electric hoists 209 are provided, one in use and one in reserve as a double insurance.

[0042] A welding operation plate 301 is fixedly connected to the top surface of the second support beam 3. A connecting column 302 is fixedly connected between the center of the top of the welding operation plate 301 and the bottom of the first support beam 2. A sliding track 303 is arranged circumferentially around the center of the welding operation plate 301. A welding operation room 305 is slidably connected to the sliding track 303 through a traveling mechanism 304. The welding operation room 305 is provided with a submerged arc automatic welding machine 307 for circumferentially welding the pipe seam of the steel pipe 8, a flux automatic recovery machine 308 for recovering the flux, and a seat box 306 for workers to sit on.

[0043] A limit adjusting mechanism 6 is arranged at the bottom of each end of the first support beam 2 and the second support beam 3, which can be used to support the inner wall of the steel pipe and improve the overall stability of the platform.

[0044] The rotating mechanism includes a mounting column 202 fixedly connected to the center of the seam pressing operation plate. A rotating table 206 is arranged at the top of the mounting column 202. A rotating support 207 is fixedly connected to the rotating table 206. The hydraulic cylinder support rod 204 passes through and is fixed in the rotating support 207. Specifically, the rotating table 206 can be selected from an electric rotating table or a hydraulic rotating table in the prior art. By starting the rotating table 206 to drive the hydraulic cylinder support rod 204 to rotate, and then controlling the first hydraulic cylinder 205 to rotate, so that the first hydraulic cylinder 205 is adjusted to the misaligned position of the steel pipe 8. In an embodiment, the rotating support 207 is U-shaped, including two parallel upper and lower side plates and a side plate connected between the two side plates. The bottom of the lower side plate of the rotating support 207 is fixedly connected to the top surface of the rotating table 206. The hydraulic cylinder support rod 204 horizontally passes through between the two side plates of the rotating support 207 and is fixedly connected to it. The top of the upper side plate of the rotating support 207 is fixedly connected to a connecting plate 203, and the connecting plate 203 is fixedly connected to the bottom end of the chain electric hoist 209.

[0045] As Figure 8 and Figure 9 shown, the welding operation chamber 305 is a cubic frame beam formed by square steel. The submerged arc automatic welding machine 307 is arranged on one side close to the pipe wall of the steel pipe 8 in the middle of the cubic frame beam. The flux automatic recovery machine 308 is fixedly connected to the top of the cubic frame beam. The seat box 306 is arranged on one side close to the sliding track 303 at the bottom of the cubic frame beam. In one embodiment, two groups of welding operation chambers are symmetrically arranged on the sliding track, and the traveling speeds of the two welding operation chambers are the same, and welding operations can be carried out simultaneously, improving the construction efficiency.

[0046] Specifically, the welding position of the submerged arc automatic welding machine 307 is horizontal welding. The welding nozzle 3071 of the submerged arc automatic welding machine 307 corresponds to the joint of the steel pipe 8. A flux recovery tray is arranged below the welding nozzle 3071. The submerged arc automatic welding machine 307 uses negative pressure to recover the flux at the flux recovery tray and send it into the flux hopper 3072, which can not only cover and protect the welding molten pool but also prevent flux waste. The submerged arc automatic welding machine 307 and the flux automatic recovery machine 308 adopt supporting equipment sold on the market. Preferably, a submerged arc horizontal welding device with high welding efficiency, less air and light pollution, and low requirements for the welding environment is adopted. Its specific structure and implementation principle belong to existing mature technologies and will not be elaborated here.

[0047] A column 310 located within the sliding track 303 circle is provided between the seam pressing operation plate 201 and the welding operation plate 301. A positioning seat 311 is arranged on the column 310. One side of the top of the welding operation chamber 305 is hinged with a positioning push rod 312, and a connecting claw 313 for connecting with the positioning seat 311 is arranged on the telescopic end of the positioning push rod 312. Specifically, the positioning push rod 312 is selected as an electric push rod, and a limit sensor for controlling the stroke is arranged inside the electric push rod. In one embodiment, the positioning seat 311 is a columnar structure adapted to the positioning claw 313 to facilitate the positioning claw 313 to grip the positioning seat 311. A supporting wheel 309 is arranged on one side of the top of the welding operation chamber 305 close to the inner wall of the steel pipe 8, and the supporting wheel 309 is in rolling connection with the inner wall of the steel pipe 8. Preferably, the supporting wheel 309 is made of rubber material.

[0048] The surface of the sliding track 303 is a smooth arc surface. The traveling mechanism 304 includes an arc groove traveling wheel slidably connected to the sliding track 303. A driving motor for driving the traveling wheel to rotate is connected to the traveling wheel, and the driving motor is arranged inside the seat box 306. The smooth arc surface of the sliding track 303 enables the traveling wheel to always maintain a stable connection with the sliding track 303 when the welding operation chamber 305 is in an inclined or upright state.

[0049] As Figure 8As shown, when welding operations are carried out, the telescopic end of the positioning push rod 312 extends until the roller 309 at the top of the operation chamber leans against the inner wall of the steel pipe 8. Then, manually drive the connecting claw 313 to disengage from the locking seat, and control the telescopic end of the positioning push rod 312 to retract, so that the connecting claw 313 is unlocked from the locking seat. The welding nozzle 3071 of the submerged arc automatic welding machine 307 corresponds to the joint of the steel pipe 8. By driving the driving motor to drive the traveling wheels to move, the bottom of the welding operation chamber 305 is driven to travel on the sliding track. The roller 309 at the top of the welding operation chamber 305 rolls around the inner wall of the steel pipe 8 to ensure the stable movement of the welding operation chamber 305. The submerged arc automatic welding machine 307 then performs circumferential welding, and the welding speed is the traveling speed of the traveling mechanism 304. As Figure 9 shown, when the welding operation is completed, control the telescopic end of the positioning push rod 312 to extend. After connecting the connecting claw 313 to the locking seat, control the telescopic end of the positioning push rod 312 to retract, thereby driving the position of the welding operation chamber 305 to return to the correct position.

[0050] The limit adjusting mechanism 6 includes a support frame 601 fixedly connected to the bottom surface of the end of the first support beam 2 or the second support beam 3. One side of the support frame 601 close to the inner wall of the steel pipe 8 is rotatably connected with a roller 602 through a connecting rod 608. The other side of the support frame 601 is fixedly connected with a spring 603 through a connecting groove 609. The other end of the spring 603 is fixedly connected to the bottom surface of the first support beam 2 or the second support beam 3. Preferably, the roller 602 is made of rubber material, and the roller 602 is in close contact with the inner wall of the steel pipe 8, playing a role of limiting and protecting.

[0051] A triangular connecting rod 604 is hinged at the bottom of the support frame 601. One end of the triangular connecting rod 604 close to the inner wall of the steel pipe 8 is hinged with a supporting shoe 605. The other end of the triangular connecting rod 604 far from the inner wall of the steel pipe 8 is hinged with a second hydraulic cylinder 606. The other end of the second hydraulic cylinder 606 is fixed to the bottom of the first support beam 2 or the second support beam 3 through a connecting frame 607. Specifically, the second hydraulic cylinder 606 is a double-acting hydraulic cylinder. When construction operations are carried out on the automated operation platform, by controlling the second hydraulic cylinder 606 to extend, the triangular connecting rod 604 is driven to push out the supporting shoe 605, so that the supporting shoe 605 tightly presses against the inner wall of the steel pipe 8, ensuring the overall stable fixation of the automated operation platform and preventing shaking. When the overall operation platform is lifted and moved, by controlling the second hydraulic cylinder 606 to retract, the triangular connecting rod 604 retracts the supporting shoe 605, so that the supporting shoe 605 disengages from the inner wall of the steel pipe 8, and the roller 602 is in close contact with the pipe wall of the steel pipe 8 for limiting, ensuring the overall stable operation of the automated operation platform and preventing bumping and shaking. Preferably, a rubber pad is provided on one side of the supporting shoe 605 close to the inner wall of the steel pipe 8, which can be used to protect the paint on the inner wall of the steel pipe 8.

[0052] A plurality of lateral limiting wheels 508 are symmetrically arranged on the top of the protection cover plate 507. Specifically, the lateral limiting wheel 508 is composed of a wheel frame and a pulley. Four lateral limiting wheels 508 are symmetrically arranged on the edge of the protection cover plate 507. The pulley is made of rubber material, which can protect the paint on the inner wall of the steel pipe 8 from being damaged during sliding. The pulley is in close contact with the pipe wall and maintains a certain elastic force to ensure smooth rising when the overall lifting of the automated operation platform. When there is a deviation, the lateral limiting wheel 508 can rise along the pipe wall of the steel pipe 8 to avoid collision between the platform and the inner wall of the steel pipe 8.

[0053] As Figure 5 shown, the hoisting assembly 5 includes a locking beam 506 fixedly connected to the top end of the chain electric hoist. The top of the locking beam 506 is fixedly connected with a protection cover plate 507. The protection cover plate 507 can prevent foreign objects from falling from the wellhead and the rock wall to protect the operation platform. The protection cover plate 507 is made of steel plate.

[0054] A locking mechanism 4 is telescopically connected to each end of the locking beam 506. The locking mechanism 4 includes a locking claw 401 slidably connected to the end of the locking beam 506. A locking card slot 402 is arranged at the bottom of the locking claw 401. The locking card slot 402 is a concave notch, which can make the locking claw 401 fit with the pipe wall of the pipe orifice of the steel pipe 8 to prevent displacement. A second limit sensor is arranged in the locking claw 401, and a driving assembly 403 for driving the locking claw 401 to expand and contract is connected to the locking claw 401.

[0055] The driving assembly 403 includes a driving push rod fixed to the bottom of the locking beam 506. A connecting plate 404 is fixedly connected to the telescopic end of the driving push rod. The top end of the connecting plate 404 is fixedly connected to the bottom of the locking claw 401. A sliding groove for the sliding of the connecting plate 404 is arranged at the bottom of each end of the locking beam 506. Specifically, the driving push rod is selected as an electric push rod, and the driving push rod is internally provided with a limit sensor for controlling the stroke. Its specific structure and electrical connection method are prior arts and will not be elaborated here. By controlling the expansion and contraction of the driving push rod, the locking claw 401 is driven to extend or retract, so that the locking mechanism 4 is located outside or inside the locking beam 506. In one embodiment, the hoisting assembly 5 further includes a plurality of groups of lifting rings fixedly connected to the protection cover plate 507 and hooks detachably connected to the lifting rings. The other end of the hook is connected to a lifting device through a steel wire rope to realize the hoisting of the locking beam 506. In another embodiment, as Figure 5 and Figure 6As shown in the figure, the hoisting assembly 5 further includes an automatic grab beam 501. The top of the automatic grab beam 501 is connected to the hoisting equipment through a hoisting rope 504. A plurality of sets of mutually adapted alignment mechanisms 502 and grasping mechanisms 503 are arranged between the automatic grab beam 501 and the protection cover plate 507. The alignment mechanism 502 includes an insertion shaft 5021 arranged at the bottom of the automatic grab beam 501 and an alignment cylinder 5022 arranged at the top of the locking beam 506. The insertion shaft 5021 and the alignment cylinder 5022 are mutually adapted, and a first limit sensor is arranged inside the alignment cylinder 5022. Specifically, the first limit sensor is arranged at the bottom of the alignment cylinder 5022. When the insertion shaft 5021 is in contact with the alignment cylinder 5022, the automatic grab beam 501 and the locking beam 506 are aligned. The first limit sensor feeds back a signal, and the hoisting equipment stops lowering. Preferably, the mouth of the alignment cylinder 5022 is set as a flared structure that gradually increases from bottom to top, which facilitates the insertion of the insertion shaft 5021 along the side wall of the mouth of the alignment cylinder 5022 into the inside of the alignment cylinder 5022, reduces the influence of the position deviation of the automatic grab beam 501 during the lowering process on the alignment of the automatic grab beam 501 and the locking beam 506, and realizes rapid alignment.

[0056] The grasping mechanism 503 includes a docking lifting lug 5031 arranged at the bottom of the automatic grab beam 501, and two grasping ear plates 5033 arranged in parallel at the top of the locking beam 506. A telescopic push rod 5034 is fixedly connected to the outside of one of the grasping ear plates 5033. Through holes and lifting holes 5032 for the telescopic shaft of the telescopic push rod 5034 to pass through are respectively arranged on the grasping ear plates 5033 and the docking lifting lug 5031. Specifically, the telescopic push rod 5034 is preferably an electric drive screw. The electric drive screw is internally provided with a limit sensor for controlling the stroke. Its specific structure and electrical connection method are both prior arts and will not be elaborated here.

[0057] In a preferred embodiment, as Figure 6 shown, monitoring cameras 505 are further arranged at both ends of the bottom of the automatic grab beam 501. The actions of the grasping mechanism 503 are monitored through the monitoring cameras 505 to further confirm whether the telescopic push rod 5034 of the grasping mechanism 503 passes through the lifting hole 5032 of the docking lifting lug 5031 and the through hole of the grasping ear plate 5033.

[0058] During the process of lowering the automatic grab beam 501 into the shaft, after the position between the automatic grab beam 501 and the locking beam 506 is aligned by inserting the insertion shaft 5021 into the alignment cylinder 5022, the telescopic push rod 5034 is started to pass through the lifting hole 5032 of the docking lifting lug 5031 and the through hole on the grasping ear plate in sequence, so as to realize the grasping action of the automatic grab beam on the locking beam 506. Through the alignment mechanism 502 and the grasping mechanism 503 of the hoisting assembly 5, remote control is realized to grab, lock or release the connection of the automatic operation platform, and the operation is mechanized, without the need to frequently go down the well, reducing the labor burden of workers.

[0059] Specifically, the locking beam 506, the first support beam 2, and the second support beam 3 adopt square tube cross beams, and the width and length of the cross beams are the same and are both smaller than the diameter of the steel pipe.

[0060] A telescopic ladder 208 is arranged between the protective cover plate 507 and the seam pressing operation plate 201, and a through opening corresponding to the outlet of the telescopic ladder 208 is provided on the protective cover plate 507. Specifically, the telescopic ladder 208 selects a commercially available telescopic ladder, such as an electric remote control telescopic folding ladder, whose bottom can be telescopically folded upward. When seam pressing operation is required, the telescopic ladder 208 is controlled to contract and fold upward; when it is necessary to move to the protective cover plate 507 on the locking beam 506, the telescopic ladder 208 is started to extend downward, and workers can reach the protective cover plate 507 through the telescopic ladder 208. A vertical ladder 314 is arranged between the seam pressing operation plate 201 and the welding operation plate 301, and a through opening corresponding to the outlet of the vertical ladder 314 is provided on the seam pressing operation plate 201.

[0061] An electro-hydraulic control system 7 is arranged on the seam pressing operation plate 201, including an electric control box, a hydraulic pump station, and a mobile power source. The hydraulic pump station provides hydraulic power for the first hydraulic cylinder 205, the second hydraulic cylinder 606, etc., and the mobile power source provides power for components such as the telescopic push rod 5034 and the driving push rod. The electric control box is provided with a PLC control system and a 5G signal transceiver for processing various feedback signals and issuing command signals to realize remote control operation and signal feedback. The specific implementation and layout of the electro-hydraulic control system 7 belong to the prior art and will not be elaborated here.

[0062] A usage method of an installation operation platform device for large-diameter high-strength steel pipes in deep vertical shafts is as follows:

[0063] S1: Hoist the steel pipe 8 into the vertical shaft 1 and complete the butt joint with the previously installed upper section of the steel pipe 8;

[0064] S2: The hoisting assembly 5 is locked and connected to the top pipe orifice of this section of the steel pipe 8;

[0065] S3: Lower the seam pressing operation plate 201 a certain distance by the chain electric hoist, drive the rotary table 206 to rotate, adjust the first hydraulic cylinder 205 to face the staggered seam position between this section of the steel pipe 8 and the upper section of the steel pipe 8. After driving the second hydraulic cylinder 606 to extend and drive the support shoe 605 to tightly press against the inner wall of the steel pipe 8, drive the first hydraulic cylinder 205 to extend and then slowly push the pipe wall (this section of the steel pipe) at the staggered seam position until the staggered seam adjustment is completed, and drive the second hydraulic cylinder 606 to retract to drive the support shoe 605 to retreat from the inner wall of the steel pipe 8;

[0066] S4: The ring chain electric hoist lifts the seam pressing operation plate 201 by a certain distance, drives the positioning push rod 312 to extend to tilt the welding operation chamber 305 until the supporting wheel 309 leans against the inner wall of the steel pipe 8, and then precisely adjusts the position height of the welding operation plate 301 through the ring chain electric hoist until the welding nozzle 3071 of the submerged arc automatic welding machine 307 is exactly opposite to the joint position between this section of the steel pipe 8 and the previous section of the steel pipe 8. The worker lifts the connecting claw 313 to disengage it from the positioning seat 311, and drives the positioning push rod 312 to retract, and drives the second hydraulic cylinder 606 to extend to drive the supporting shoe 605 to tightly press against the inner wall of the steel pipe 8;

[0067] S5: The worker enters the welding operation chamber 305, drives the traveling mechanism 304 to drive the welding operation chamber 305 to travel uniformly on the sliding track 303, and starts the submerged arc automatic welding machine 307 to weld the joint of the steel pipe 8 until the full-ring welding operation of the joint of the steel pipe 8 is completed;

[0068] S6: The worker exits the welding operation chamber 305, drives the positioning push rod 312 to extend. After the worker lifts the connecting claw 313 and connects it to the positioning seat 311, drives the positioning push rod 312 to retract to drive the position of the welding operation chamber 305 to return to the correct position, and drives the second hydraulic cylinder 606 to retract to drive the supporting shoe 605 to retreat from the inner wall of the steel pipe 8;

[0069] S7: The lifting assembly 5 unlocks from the top pipe orifice of this section of the steel pipe 8;

[0070] S8: After hoisting the next section of the steel pipe 8 into the shaft 1 and completing the docking with this section of the steel pipe 8, repeat steps S2 - S7 to perform the installation operation of the next section of the steel pipe 8.

[0071] In step S2, the locking connection between the lifting assembly 5 and the steel pipe 8 is achieved by hanging the ring chain electric hoist at the bottom of the locking beam 506 of the lifting assembly 5, driving all the locking mechanisms 4 to extend outside the end of the locking beam 506, and then lowering the automatic grab beam 501 through the lifting equipment until the locking mechanisms 4 are fitted and connected to the pipe wall of the top pipe orifice of this section of the steel pipe 8. Then, the second limit sensor feeds back a signal to the electric control box, the lifting equipment stops lowering, the automatic grab beam 501 completes the release action of the locking beam 506 through the grabbing mechanism 503, and the lifting equipment lifts the automatic grab beam 501 to the designated position.

[0072] In step S7, the unlocking between the lifting assembly 5 and the steel pipe 8 is achieved by lowering the automatic grab beam 501 through the lifting equipment. When the alignment mechanism 502 completes the alignment action between the automatic grab beam 501 and the locking beam 506, the lifting equipment stops lowering. The automatic grab beam 501 completes the grabbing action of the locking beam 506 through the grabbing mechanism 503, the lifting equipment lifts the whole platform to the designated height, and drives all the locking mechanisms 4 to retract into the end of the locking beam 506.

[0073] The grasping action of the grasping mechanism 503 on the locking beam 506 is completed by driving the telescopic shaft to extend through the telescopic push rod 5034. The telescopic shaft sequentially passes through the suspension hole 5032 of the docking lug 5031 and the through hole of the grasping ear plate 5033. The release action of the grasping mechanism 503 on the locking beam 506 is completed by driving the telescopic shaft to retract through the telescopic push rod 5034. The telescopic shaft sequentially exits the through hole of the grasping ear plate 5033 and the suspension hole 5032 of the docking lug 5031.

[0074] The alignment action of the alignment mechanism 502 is completed by inserting the insertion shaft 5021 into the alignment cylinder 5022 and connecting with it, so as to trigger the first limit sensor to feedback a signal to the electric control box, and the lifting equipment stops lowering, realizing the alignment between the automatic beam grab 501 and the locking beam 506.

[0075] Enlightened by the above ideal embodiments of the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A deep shaft large diameter high strength steel pipe installation operation platform device, characterized in that: It includes a first support beam and a second support beam arranged in parallel up and down, The top of the first support beam is fixedly connected with a seam pressing operation plate, the center of the seam pressing operation plate is provided with a rotating mechanism, the rotating mechanism is rotatably connected with a hydraulic cylinder support rod parallel to the cross section of the steel pipe, both ends of the hydraulic cylinder support rod are fixedly connected with the first hydraulic cylinder, and the top of the rotating mechanism is connected with a hoisting assembly through a chain electric hoist. A welding work plate is fixedly connected to the top surface of the second support beam, an up and down ladder is arranged between the press seam work plate and the welding work plate, a connecting column is fixedly connected between the top center of the welding work plate and the bottom of the first support beam, a sliding track is circumferentially arranged on the welding work plate with its center as the center of the circle, a welding operation room is slidably connected to the sliding track through a walking mechanism, a submerged arc automatic welding machine for circumferential welding of steel pipe seams is arranged in the welding operation room, and a limit adjustment mechanism is arranged at the bottom of each end of the first support beam and the second support beam.

2. The deep shaft large diameter high strength steel pipe installation operation platform device according to claim 1 is characterized in that: A column located in the sliding track circle is arranged between the seam pressing work plate and the welding work plate, a positioning seat is arranged on the column, a positioning push rod is arranged on one side of the top of the welding operation room, a connecting claw for connecting the positioning seat is arranged on the telescopic end of the positioning push rod, and a supporting wheel is arranged on one side of the top of the welding operation room close to the inner wall of the steel pipe.

3. The deep shaft large diameter high strength steel pipe installation operation platform device according to claim 1 is characterized in that: The surface of the slide track is a smooth arc-shaped surface, and the walking mechanism comprises an arc groove walking wheel slidably connected to the slide track, and the walking wheel is connected to a driving motor for driving the walking wheel to rotate.

4. The deep shaft large diameter high strength steel pipe installation operation platform device according to claim 1 is characterized in that: The limit adjustment mechanism includes a support frame fixedly connected to the bottom surface of the end of the first support beam or the second support beam, and the support frame is rotatably connected to a roller through a connecting rod on one side close to the inner wall of the steel pipe, and the other side of the support frame is fixedly connected to a spring through a connecting groove, and the other end of the spring is fixedly connected to the bottom surface of the first support beam or the second support beam.

5. The deep shaft large diameter high strength steel pipe installation operation platform device according to claim 4 is characterized in that: A triangular connecting rod is hinged at the bottom of the support frame, a support shoe is hinged at one end of the triangular connecting rod close to the inner wall of the steel pipe, a second hydraulic cylinder is hinged at one end of the triangular connecting rod away from the inner wall of the steel pipe, and the other end of the second hydraulic cylinder is fixed to the bottom of the first support beam or the second support beam through a connecting frame.

6. The deep shaft large diameter high strength steel pipe installation operation platform device according to claim 1 is characterized in that: The lifting assembly includes a locking beam fixedly connected to the top of the chain electric hoist, a protective cover plate is fixedly connected to the top of the locking beam, a locking mechanism is telescopically connected to each end of the locking beam, the locking mechanism includes a locking claw slidably connected to the end of the locking beam, a second limit sensor is provided in the locking claw, a locking slot is provided at the bottom of the locking claw, the locking slot is adapted to the pipe wall of the steel pipe mouth, and a driving assembly is connected to the locking claw to drive the locking claw to retract and retract.

7. The deep shaft large diameter high strength steel pipe installation operation platform device according to claim 6 is characterized in that: A plurality of lateral limiting wheels are symmetrically arranged on the top of the protective cover plate.

8. The deep shaft large diameter high strength steel pipe installation operation platform device according to claim 6 is characterized in that: A telescopic ladder is arranged between the protection cover plate and the welding operation plate.

9. The deep shaft large diameter high strength steel pipe installation operation platform device according to claim 6, characterized in that: The lifting assembly also includes an automatic grab beam, and a plurality of sets of mutually adaptable alignment mechanisms and grabbing mechanisms are arranged between the automatic grab beam and the protective cover plate; the alignment mechanism includes an insertion shaft arranged at the bottom of the automatic grab beam and an alignment cylinder arranged at the top of the locking beam, and a first limit sensor is arranged in the alignment cylinder; the grabbing mechanism includes a docking ear arranged at the bottom of the automatic grab beam, and two grabbing ear plates arranged in parallel at the top of the locking beam, wherein a telescopic push rod is fixedly connected to the outer side of one of the grabbing ear plates, and a through hole and a lifting hole for the telescopic shaft on the telescopic push rod to pass through are respectively provided on the grabbing ear plate and the docking ear.

10. The deep shaft large diameter high strength steel pipe installation operation platform device according to claim 9, characterized in that: The mouth of the alignment tube is arranged as a trumpet-shaped structure which gradually increases from bottom to top.

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