Mine hoisting device and hoisting method for offshore exploration platform

Abstract

The invention relates to the technical field of mine exploration, and discloses a mine hoisting device and a hoisting method for an offshore exploration platform, the mine hoisting device comprises a platform plate, the top of the platform plate is slidably connected with a moving table, the top of the moving table is slidably connected with a base, the top of the base is provided with a control mechanism, and the control mechanism comprises a main body frame; the main body frame is fixedly connected to the top of the base, a threaded control rod is rotatably connected to the interior of the main body frame, and a lifting block is slidably connected to the main body frame. Through the design of the control mechanism, the main body is continuously lifted in a reciprocating manner of the lifting block, the height of the lifting device cannot be limited due to the length of the column body, and compared with the situation that when the length of the column body is large, a tower and other structures matched with the length of the column body need to be adopted for lifting operation, the lifting operation is more convenient. And the structure is simpler, the cost is lower, the occupied volume is smaller, and the corresponding safety is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of mine exploration, and in particular to a mine hoisting device and a hoisting method for an offshore exploration platform. Background Art

[0002] Offshore exploration generally refers to the exploration of resources such as offshore oil. It is a technology for searching for underground oil buried in the ocean, bays, and lakes. For drilling and development within the area containing oil resources, when the drilling depth is relatively large, the column is often relatively long, and a hoisting device is often required to assist in hoisting the column.

[0003] Patent Publication No. CN211596717U discloses a hoisting device for an offshore drilling platform, including a base platform. The top of the base platform is connected and welded in a circumferential manner with a circumferential cylinder. A column is slidably embedded in the circumferential cylinder along the vertical center line. Vertical grooves are provided on both sides of the outer wall of the column along the vertical center line, and cam grooves are evenly provided in the column within the vertical grooves. Through the control of an external controller, the hoisting motor (49) can drive the hoisting gear to rotate through a chain, pulling the column to rise. During the rising process of the column, the limit rollers can perform limit processing on the column to prevent the column from shaking during hoisting, improving the safety of the device. Through the external controller, the hydraulic cylinder can drive the positioning slider to slide, and the convex block will enter the cam groove to achieve clamping. The telescopic rod and the spring can ensure the stability of the positioning slider, thereby effectively ensuring the fixation of the column and preventing accidental sliding of the column.

[0004] When the above device hoists the column, in order to avoid shaking during the lifting process, generally a gear groove is opened on the column and external gear meshing transmission is used to achieve overall lifting. However, in the actual drilling process, the column generally needs to rotate along with the drill pipe to achieve rapid drilling. Since the above hoisting device uses the method of gear tooth groove meshing, it cannot be well matched and adapted when the column needs to be rotated and hoisted, and cannot meet the hoisting requirements when the column rotates. Therefore, a mine hoisting device and a hoisting method for an offshore exploration platform are proposed herein to solve the above problems. Summary of the Invention

[0005] In order to solve the above-mentioned problems, the present invention provides a mine hoisting device.

[0006] The mine hoisting device provided by the present invention adopts the following technical solutions: A mine hoisting device includes a platform plate. A moving table is slidably connected to the top of the platform plate. A base is slidably connected to the top of the moving table. A control mechanism is provided on the top of the base; The control mechanism includes a main body frame which is fixedly connected to the top of the base. A threaded control rod is rotatably connected inside the main body frame. A lifting block is slidably connected to the main body frame. The threaded control rod penetrates through the lifting block and is threadedly connected to the lifting block. A first socket is fixedly connected to one side of the lifting block. A second socket is fixedly connected to one side wall of the main body frame. Two mounting plates are arranged on one side of the main body frame. Ring plates are rotatably connected to both mounting plates. Plug plates are fixedly connected to one side of both ring plates. The two plug plates respectively extend into the first socket and the second socket. The plug plates respectively match the first socket and the second socket. A positioning component is arranged on the ring plate; The positioning component includes two clamping plates. Both clamping plates are arranged inside the ring plate. The clamping plates extend outside the ring plate. A trapezoidal block is integrally formed at one end of the clamping plate. An outer ring plate is arranged outside the ring plate. An inner ring plate is rotatably connected to the inner side of the outer ring plate. Two control plates are integrally formed on the inner side of the inner ring plate.

[0007] By adopting the above technical solution, when lifting the column body, after the column body is sequentially inserted through the two ring plates, first control the clamping plate inside the ring plate on one side of the lifting block to clamp the column body. By controlling the lifting and lowering of the lifting block in sequence, the lifting control of the column body or driving the main body to move downward can be realized. After a single lifting or lowering to the maximum operating distance of the threaded control rod, after releasing the clamping state of the clamping plate inside this ring plate, control the clamping plate inside the lower ring plate to clamp and fix the column body to maintain the height of the column body. After controlling the lifting and lowering of the lifting block, re-clamp the column body with the clamping plate inside the ring plate on the control block side. In this way, the lifting and lowering operation of the column body can be quickly realized, and through operation control, compared with using a tower structure matching the length of the column body for lifting operation when the length of the column body is relatively long, the structure is simpler, the cost is lower, the occupied volume is smaller, and the corresponding safety is higher.

[0008] Preferably, a motor is fixedly connected to the top of the main body frame. The motor is fixedly connected with a first gear through an output shaft. A second gear is fixedly connected to the outside of the threaded control rod. The first gear is arranged on one side of the second gear and the first gear meshes with the second gear.

[0009] By adopting the above technical solution, after the motor works, it drives the first gear to rotate. The first gear drives the second gear to rotate, so as to prompt the second gear to drive the threaded control rod to rotate, achieving the purpose of driving the threaded control rod by the motor work.

[0010] Preferably, an inclined groove is formed on the trapezoidal block. The control plate extends into the inclined groove and matches the inclined groove.

[0011] By adopting the above technical solution, the control board can move flexibly inside the chute, and the chute can also limit the control board at the same time, so that the end of the control board can only move along the chute inside the chute, achieving the effect of stably pressing and pushing the trapezoidal block after the control board moves.

[0012] Preferably, two auxiliary plates are fixedly connected to the top of the outer annular plate, both of the two auxiliary plates penetrate through the mounting plate, a moving plate is arranged on one side of the mounting plate, the moving plate is slidably connected to the top of the mounting plate, a first hydraulic rod is fixedly connected to one side of the moving plate, and one end of the first hydraulic rod is fixedly connected to one side wall of the mounting plate.

[0013] By adopting the above technical solution, after the first hydraulic rod works, it pushes and pulls the moving plate.

[0014] Preferably, a push-pull rod is arranged on the top of the moving plate, one end of the push-pull rod is movably connected to the top of the moving plate through a movable hinge seat, and the other end of the push-pull rod is movably connected to the inner top of the auxiliary plate through a movable hinge seat.

[0015] By adopting the above technical solution, after the moving plate moves, it drives the push-pull rod to swing, and after the push-pull plate swings, it forms a pushing and pulling effect on the auxiliary plate.

[0016] Preferably, a vertical plate is arranged on the top of the platform plate, a connecting plate is fixedly connected between the vertical plate and the main body frame, a movable plate is arranged on one side of the vertical plate, a threaded adjusting rod is rotatably connected to the movable plate, the threaded adjusting rod penetrates through the vertical plate and is threadedly connected to the vertical plate, a rotating plate is fixedly connected to one end of the threaded adjusting rod, a rectangular block is slidably connected to the movable plate, a first limiting plate is fixedly connected to the rectangular block, a second limiting plate is integrally formed on the movable plate, the second limiting plate is arranged at the bottom of the first limiting plate, and limiting grooves are formed in the first socket, the second socket and the plug board, and the first limiting plate and the second limiting plate are both matched with the limiting grooves.

[0017] By adopting the above technical solution, the user controls the rotation of the threaded adjusting rod by manipulating the rotation of the rotating plate. When the threaded adjusting rod rotates, it further drives the vertical plate to move.

[0018] Preferably, a guide plate is fixedly connected to the movable plate, and the guide plate penetrates through the vertical plate.

[0019] By adopting the above technical solution, the guide plate limits the movable plate to keep it moving stably horizontally.

[0020] Preferably, an extension plate is integrally formed on the top of the platform plate, a second hydraulic rod is fixedly connected to the extension plate, and one end of the second hydraulic rod is fixedly connected to one side of the moving table.

[0021] By adopting the above technical solution, after the second hydraulic rod works, it pushes and pulls the moving platform, and the extension plate plays a role in supporting and fixing the second hydraulic rod.

[0022] Preferably, a third hydraulic rod is fixedly connected inside the moving platform, and one end of the third hydraulic rod is fixedly connected to the base.

[0023] By adopting the above technical solution, after the third hydraulic rod works, it horizontally pushes and pulls the base to realize the rapid horizontal movement adjustment of the base.

[0024] Another technical problem to be solved by the present invention is to provide a lifting method of the described mine hoisting device for an offshore exploration platform, including the following steps: S1. Position adjustment Before the lifting work starts, the moving platform is horizontally adjusted left and right according to the lifting position in advance, and the base is horizontally adjusted front and back to perform four-way adjustment. S2. Cylinder positioning After the cylinder to be lifted is inserted through the two ring plates, the cylinder is clamped by controlling the two clamping plates to move towards each other. The upper ring plate can move up and down, and then the cylinder is lifted after being clamped separately. During the lifting gap, the cylinder can be clamped by the clamping plate inside the lower ring plate to ensure the stability of the cylinder. S3. Cylinder lifting By controlling the rotation of the threaded control rod to further control the lifting block to perform lifting and lowering operations. At this time, when the clamping plate inside the ring plate on one side of the lifting block holds the cylinder, an upward lifting or downward pressing and moving operation can be applied to the cylinder. S4. Maintenance After the lifting work is completed, if the ring plate needs to be disassembled for maintenance, the plug board can be removed from the socket to complete the removal of the ring plate, so as to further carry out the maintenance operation.

[0025] In summary, the present invention includes the following beneficial technical effects: 1. A mine hoisting device and a lifting method for an offshore exploration platform. Through the design of the control mechanism, the main body is continuously lifted by the reciprocating movement of the lifting block. By operating in this way, the height of the hoisting device will not be limited by the length of the cylinder. Compared with the need to use structures such as towers matching the length of the cylinder for lifting operations when the cylinder is relatively long, the structure is simpler, the cost is lower, the occupied volume is smaller, and the corresponding safety is higher.

[0026] 2. A mine hoisting device and a hoisting method for an offshore exploration platform. Through the design of the positioning component, the inner annular plate can rotate inside the outer annular plate. Therefore, this device can effectively match the hoisting requirements when the column rotates itself, has a wider application range, and avoids the situation where it cannot be well matched due to the limitation of the clamping components when the column needs to rotate itself.

[0027] 3. A mine hoisting device and a hoisting method for an offshore exploration platform. By setting two ring plates, on the basis of clamping and controlling the lifting of the column by the clamping plate inside one of the ring plates, during the lifting gap, it is fixed by the clamping plate inside the other ring plate to maintain the stability of the adjusted height. While achieving the flexible adjustment function, the stability is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the structure of the present invention; Figure 2 is an exploded view of the structure of the present invention; Figure 3 is a schematic diagram of the structure of the mounting plate in the present invention; Figure 4 is a sectional view of the mounting plate in the present invention; Figure 5 is a sectional view of the ring plate in the present invention; Figure 6 is a sectional view of the main body frame in the present invention; Figure 7 is a schematic diagram of the structure of the moving platform in the present invention.

[0029] DESCRIPTION OF THE REFERENCE NUMERALS: 1. Platform plate; 2. Moving platform; 3. Base; 4. Control mechanism; 41. Main body frame; 42. Thread control rod; 43. Lifting block; 44. First socket; 45. Second socket; 46. Mounting plate; 47. Ring plate; 48. Insertion plate; 49. Motor; 491. First gear; 492. Second gear; 493. Vertical plate; 494. Connecting plate; 495. Movable plate; 496. Thread adjusting rod; 497. Rectangular block; 498. First limiting plate; 499. Second limiting plate; 481. Guide plate; 482. Second hydraulic rod; 483. Third hydraulic rod; 5. Positioning component; 51. Clamping plate; 52. Trapezoidal block; 53. Outer annular plate; 54. Inner annular plate; 55. Control plate; 56. Inclined groove; 57. Auxiliary plate; 58. Moving plate; 59. First hydraulic rod; 591. Push-pull rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following will further describe the present invention in detail with reference to the attached Figure 1 - attached Figure 7 drawings.

[0031] The present invention discloses a mine hoisting device. Refer to Figures 1-7 , which includes a platform plate 1. A moving table 2 is slidably connected to the top of the platform plate 1. A base 3 is slidably connected to the top of the moving table 2. A control mechanism 4 is arranged on the top of the base 3; The control mechanism 4 includes a main body frame 41. The main body frame 41 is fixedly connected to the top of the base 3. A threaded control rod 42 is rotatably connected inside the main body frame 41. A lifting block 43 is slidably connected to the main body frame 41. The threaded control rod 42 penetrates through the lifting block 43 and is threadedly connected to the lifting block 43. A first socket 44 is fixedly connected to one side of the lifting block 43. A second socket 45 is fixedly connected to one side wall of the main body frame 41. Two mounting plates 46 are arranged on one side of the main body frame 41. Ring plates 47 are rotatably connected to both of the two mounting plates 46. Plug plates 48 are fixedly connected to one side of both of the two ring plates 47. The two plug plates 48 respectively extend into the first socket 44 and the second socket 45. The plug plates 48 respectively match the first socket 44 and the second socket 45. A positioning component 5 is arranged on the ring plate 47; The positioning component 5 includes two clamping plates 51. Both of the two clamping plates 51 are arranged inside the ring plate 47. The clamping plates 51 extend outside the ring plate 47. A trapezoidal block 52 is integrally formed at one end of the clamping plate 51. An outer ring plate 53 is arranged outside the ring plate 47. An inner ring plate 54 is rotatably connected to the inner side of the outer ring plate 53. Two control plates 55 are integrally formed on the inner side of the inner ring plate 54. When performing a hoisting operation on the column, after passing the column through the two ring plates 47 in sequence, first control the clamping plate 51 inside the ring plate 47 on one side of the lifting block 43 to clamp the column. By controlling the lifting and lowering of the lifting block 43 in sequence, the hoisting control of the column can be realized or the main body can be driven to move downward. After a single lifting or lowering to the maximum operating distance of the threaded control rod 42, after releasing the clamping state of the clamping plate 51 inside this ring plate 47, control the clamping plate 51 inside the lower ring plate 47 to clamp and fix the column to maintain the height of the column. After controlling the lifting and lowering of the lifting block 43, clamp the column with the clamping plate 51 inside the ring plate 47 on the control block side again. In this way, the lifting and lowering operation of the column can be quickly realized, and through operation control, compared with using a tower structure matching the column length for hoisting operation when the column is relatively long, the structure is simpler, the cost is lower, the occupied volume is smaller, and the corresponding safety is higher.

[0032] A motor 49 is fixedly connected to the top of the main body frame 41. The motor 49 is fixedly connected with a first gear 491 through an output shaft. A second gear 492 is fixedly connected to the outside of the threaded control rod 42. The first gear 491 is arranged on one side of the second gear 492, and the first gear 491 meshes with the second gear 492. After the motor 49 works, it drives the first gear 491 to rotate, and the first gear 491 drives the second gear 492 to rotate. An inclined groove 56 is formed on the trapezoidal block 52. The control plate 55 extends into the inclined groove 56 and matches the inclined groove 56. The control plate 55 can move flexibly inside the inclined groove 56.

[0033] Two auxiliary plates 57 are fixedly connected to the top of the outer annular plate 53. Both of the two auxiliary plates 57 penetrate through the mounting plate 46. A moving plate 58 is arranged on one side of the mounting plate 46. The moving plate 58 is slidably connected to the top of the mounting plate 46. A first hydraulic rod 59 is fixedly connected to one side of the moving plate 58. One end of the first hydraulic rod 59 is fixedly connected to one side wall of the mounting plate 46. After the first hydraulic rod 59 works, it pushes and pulls the moving plate 58. A push-pull rod 591 is arranged on the top of the moving plate 58. One end of the push-pull rod 591 is movably connected to the top of the moving plate 58 through a movable hinge seat. The other end of the push-pull rod 591 is movably connected to the inner top of the auxiliary plate 57 through a movable hinge seat. After the moving plate 58 moves, it drives the push-pull rod 591 to swing.

[0034] A vertical plate 493 is arranged on the top of the platform plate 1. A connecting plate 494 is fixedly connected between the vertical plate 493 and the main body frame 41. An activity plate 495 is arranged on one side of the vertical plate 493. A threaded adjusting rod 496 is rotatably connected to the activity plate 495. The threaded adjusting rod 496 penetrates through the vertical plate 493 and is threadedly connected to the vertical plate 493. A rotating plate is fixedly connected to one end of the threaded adjusting rod 496. A rectangular block 497 is slidably connected to the activity plate 495. A first limiting plate 498 is fixedly connected to the rectangular block 497. A second limiting plate 499 is integrally formed on the activity plate 495. The second limiting plate 499 is arranged at the bottom of the first limiting plate 498. Limiting grooves are formed on the first socket 44, the second socket 45 and the plug board 48. Both the first limiting plate 498 and the second limiting plate 499 match the limiting grooves. The user controls the rotation of the threaded adjusting rod 496 by manipulating the rotation of the rotating plate; A guiding plate 481 is fixedly connected to the activity plate 495. The guiding plate 481 penetrates through the vertical plate 493. The guiding plate 481 limits the activity plate 495 to keep it moving stably horizontally. An extension plate is integrally formed on the top of the platform plate 1. A second hydraulic rod 482 is fixedly connected to the extension plate. One end of the second hydraulic rod 482 is fixedly connected to one side of the moving platform 2. After the second hydraulic rod 482 works, it pushes and pulls the moving platform 2. A third hydraulic rod 483 is fixedly connected to the inside of the moving platform 2. One end of the third hydraulic rod 483 is fixedly connected to the base 3. After the third hydraulic rod 483 works, it pushes and pulls the base 3 horizontally.

[0035] Another technical problem to be solved by the present invention is to provide a lifting method of a mine hoisting device for an offshore exploration platform, including the following steps: S1. Position adjustment Before the lifting work starts, the horizontal left and right position of the moving platform 2 is adjusted in advance according to the lifting position, and the horizontal front and rear position of the base 3 is adjusted to perform four-way adjustment. S2. Cylinder positioning After the cylinder to be lifted is inserted through the two ring plates 47, the cylinder is clamped by controlling the two clamping plates 51 to move towards each other. The upper ring plate 47 can move up and down, and then the lifting operation is carried out after separate clamping. During the lifting gap, the cylinder can be clamped by the clamping plate 51 inside the lower ring plate 47 to ensure the stability of the cylinder. S3. Cylinder lifting By controlling the rotation of the threaded control rod 42, the lifting block 43 is further controlled to perform lifting and lowering operations. At this time, after the clamping plate 51 inside the ring plate 47 on one side of the lifting block 43 clamps the cylinder, an upward lifting or downward pressing and moving operation can be applied to the cylinder. S4. Maintenance After the lifting work is completed, if the ring plate 47 needs to be disassembled for maintenance, the plug plate 48 can be removed from the socket, and then the ring plate 47 can be removed to further carry out the maintenance operation.

[0036] In the actual operation process, when this device is used, first connect the power supply of this device. When lifting the cylinder, the cylinder is inserted through the two ring plates 47 in sequence. After the motor 49 works, it drives the connected first gear 491 to rotate. The first gear 491 drives the second gear 492 to rotate. The second gear 492 drives the threaded control rod 42 to rotate. The threaded control rod 42 drives the lifting block 43 to perform lifting and lowering movements. The lifting block 43 drives the first socket 44 to lift and lower. The first socket 44 drives the plug plate 48 inside to move. This plug plate 48 drives the connected ring plate 47 to lift and lower. Then when the lifting block 43 performs lifting and lowering movements, it can drive one side of the ring plate 47 to lift and lower, while the ring plate 47 on the side of the second socket 45 is fixed in position and cannot move. When it is necessary to clamp and fix the column area inside the ring plate 47, the first hydraulic rod 59 works to push and pull the moving plate 58. The moving plate 58 moves and drives the push-pull rod 591 at the top to swing. After the push-pull rod 591 swings, it pushes and pulls the connected auxiliary plate 57 up and down. After the auxiliary plate 57 moves up and down, it drives the outer ring plate 53 to move. The outer ring plate 53 drives the inner ring plate 54 to move. The inner ring plate 54 drives the control plate 55 to move up and down. When the bottom of the control plate 55 moves inside the inclined groove 56 on the trapezoidal block 52, it will form a squeezing effect on the trapezoidal block 52, prompting the trapezoidal block 52 to move horizontally. When the two trapezoidal blocks 52 drive the clamping plates 51 to move towards each other, the clamping plates 51 can be prompted to clamp and fix the outer surface of the column. After clamping the column with the clamping plate 51 on one side of the lifting block 43 inside the ring plate 47 through the above operations, by controlling the lifting of the lifting block 43, the lifting or downward thrust of the column can be controlled. And because the inner ring plate 54 is rotatably connected to the outer ring plate 53, during the process of controlling the lifting and lowering of the column, if the column itself is in a rotating state, the clamping plate 51 can maintain the clamping operation on the column. Based on the above steps, it is prompted that the device can effectively match the lifting requirements when the column itself rotates, with a wider application range, avoiding the situation that cannot be well matched due to the limitation of the clamping components when the column itself needs to rotate. After lifting or lowering to the maximum operating distance of the threaded control rod 42 once, release the clamping state of the clamping plate 51 inside this ring plate 47, and control the clamping plate 51 inside the lower ring plate 47 to clamp and fix the column to maintain the stable height of the column. After further controlling the lifting block 43 to lift and lower to the initial position, adjust the clamping plate 51 inside the ring plate 47 on the control block side to clamp the column again, and then continue to control the lifting block 43 to move, and repeat this operation to realize the lifting and lowering operation of the column. And through this operation for control, compared with using a tower structure that matches the column length for lifting operation when the column is relatively long, the overall height of the device is smaller, the structure is simpler, the cost brought is lower, and it has the characteristics of smaller occupied volume and higher safety. Finally, after the lifting work is completed, when it is necessary to disassemble the ring plate 47 and perform maintenance on it, the threaded adjusting rod 496 can be rotated. After the threaded adjusting rod 496 rotates, it moves. At this time, the threaded adjusting rod 496 drives the movable plate 495 to move, the movable plate 495 drives the rectangular block 497 and the second limiting plate 499 to move, and the rectangular block 497 drives the first limiting plate 498 to move. When the first limiting plate 498 and the second limiting plate 499 respectively move to one side of the two plug plates 48, the two plug plates 48 can be taken out from the first socket 44 and the second socket 45 respectively, so as to complete the removal of the ring plate 47. The convenient disassembly operation is beneficial to the development of the maintenance work on the ring plate 47 and the components on the ring plate 47, and to the quick replacement when components such as the ring plate 47 are damaged, so as to ensure the normal development of the lifting work. By setting two ring plates 47 as above, on the basis that the clamping plate 51 inside one of the ring plates 47 can clamp and control the lifting of the column body, during the lifting gap, the clamping plate 51 inside the other ring plate 47 can fix it to maintain the stability of the adjusted height. While realizing the flexible adjustment function, the stability is better.

[0037] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A mine hoisting device, comprising a platform plate, characterized in that: A mobile platform is slidably connected to the top of the platform plate, a base is slidably connected to the top of the mobile platform, and a control mechanism is arranged on the top of the base; The control mechanism includes a main body frame fixedly connected to the top of the base. A threaded control rod is rotatably connected inside the main body frame. A lifting block is slidably connected to the main body frame. The threaded control rod penetrates through the lifting block and is threadedly connected to the lifting block. A first socket is fixedly connected to one side of the lifting block. A second socket is fixedly connected to one side wall of the main body frame. Two mounting plates are arranged on one side of the main body frame. Circular plates are rotatably connected to both mounting plates. Plug plates are fixedly connected to one side of both circular plates. The two plug plates respectively extend into the first socket and the second socket. The plug plates respectively match the first socket and the second socket. A positioning component is arranged on the circular plate; The positioning component includes two clamping plates, both of which are arranged inside the circular plate. The clamping plates extend outside the circular plate. A trapezoidal block is integrally formed at one end of the clamping plate. An outer annular plate is arranged outside the circular plate. An inner annular plate is rotatably connected to the inner side of the outer annular plate. Two control plates are integrally formed on the inner side of the inner annular plate.

2. The mine hoisting device according to claim 1, characterized in that: A motor is fixedly connected to the top of the main body frame. A first gear is fixedly connected to the output shaft of the motor. A second gear is fixedly connected to the outside of the threaded control rod. The first gear is arranged on one side of the second gear and meshes with the second gear.

3. A mine hoisting device according to claim 1, characterized in that: An inclined groove is formed on the trapezoidal block. The control plate extends into the inclined groove and matches the inclined groove.

4. A mine hoisting device according to claim 1, characterized in that: Two auxiliary plates are fixedly connected to the top of the outer annular plate. Both auxiliary plates penetrate through the mounting plate. A moving plate is arranged on one side of the mounting plate. The moving plate is slidably connected to the top of the mounting plate. A first hydraulic rod is fixedly connected to one side of the moving plate. One end of the first hydraulic rod is fixedly connected to one side wall of the mounting plate.

5. The mine hoisting device according to claim 4, characterized in that: A push-pull rod is arranged on the top of the moving plate. One end of the push-pull rod is movably connected to the top of the moving plate through a movable hinge seat. The other end of the push-pull rod is movably connected to the top of the inner side of the auxiliary plate through a movable hinge seat.

6. The mine hoisting device according to claim 1, wherein: A vertical plate is arranged on the top of the platform plate. A connecting plate is fixedly connected between the vertical plate and the main body frame. A movable plate is arranged on one side of the vertical plate. A threaded adjusting rod is rotatably connected to the movable plate. The threaded adjusting rod penetrates through the vertical plate and is threadedly connected to the vertical plate. A rotating plate is fixedly connected to one end of the threaded adjusting rod. A rectangular block is slidably connected to the movable plate. A first limiting plate is fixedly connected to the rectangular block. A second limiting plate is integrally formed on the movable plate. The second limiting plate is arranged at the bottom of the first limiting plate. Limiting grooves are formed on the first socket, the second socket and the plug plate. The first limiting plate and the second limiting plate both match the limiting grooves.

7. A mine hoisting device according to claim 6, characterized in that: A guide plate is fixedly connected to the movable plate. The guide plate penetrates through the vertical plate.

8. A mine hoisting device according to claim 1, characterized in that: An extension plate is integrally formed on the top of the platform plate. A second hydraulic rod is fixedly connected to the extension plate. One end of the second hydraulic rod is fixedly connected to one side of the mobile platform.

9. The mine hoisting device according to claim 1, characterized in that: A third hydraulic rod is fixedly connected inside the mobile platform. One end of the third hydraulic rod is fixedly connected to the base.

10. A lifting method for a mine hoisting device used in an offshore exploration platform according to any one of claims 1-9, characterized in that: Including the following steps: S1. Position adjustment Before the lifting work starts, the mobile station is adjusted horizontally left and right according to the lifting position in advance, and the base is adjusted horizontally forward and backward to perform four-way adjustment; S2. Cylinder positioning After the cylinder to be lifted is inserted through the two ring plates, the cylinder is clamped by controlling the two clamping plates to move towards each other. The upper ring plate can move up and down, and then it is lifted after being clamped separately. During the lifting gap, the cylinder can be clamped by the clamping plate inside the lower ring plate to ensure the stability of the cylinder; S3. Cylinder lifting By controlling the rotation of the threaded control rod to further control the lifting block to perform lifting and lowering operations. At this time, after the clamping plate inside the ring plate on one side of the lifting block holds the cylinder in a clamped state, an upward lifting or downward pressing and moving operation can be applied to the cylinder; S4. Maintenance After the lifting work is completed, if it is necessary to disassemble and maintain the ring plate, the plug can be removed from the socket to complete the removal of the ring plate, so as to further carry out the maintenance operation.

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