Mine hoisting device and hoisting method for offshore exploration platform

Abstract

The present invention relates to the field of mine exploration technology, and discloses a mine hoisting device and a hoisting method for an offshore exploration platform, comprising a platform plate, a movable platform slidably connected to the top of the platform plate, a base slidably connected to the top of the movable platform, a control mechanism provided on the top of the base, the control mechanism comprising a main body frame, the main body frame being fixedly connected to the top of the base, a threaded control rod rotatably connected to the inside of the main body frame, and a lifting block slidably connected to the main body frame. Through the design of the control mechanism, the main body is continuously lifted by the lifting block in a reciprocating manner. When operated in this manner, the height of the lifting device is not limited by the length of the column. Compared with a long column length requiring the use of a tower or other structure that matches the length of the column for lifting operations, the structure is simpler, the cost is lower, the volume occupied 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 offshore oil and other resources. It is a technology that searches for oil buried underground in oceans, bays and lakes. Drilling and development are carried out in areas containing oil resources. When the drilling depth is large, the column is often long, and a lifting device is often required to assist in lifting the column.

[0003] Patent announcement number CN211596717U discloses a lifting device for an offshore drilling platform, comprising a base, a wrapping cylinder welded to the top of the base, a column embedded in the wrapping cylinder along a vertical centerline, a vertical groove formed on both sides of the vertical centerline on the outer wall of the column, and a cam groove formed evenly on the column in the vertical groove. The lifting motor (49) can be controlled by an external controller to drive the lifting gear to rotate through a chain, thereby pulling the column up. During the process of the column rising, the limiting roller can limit the column to prevent the column from shaking during the lifting process, thereby improving the safety of the device. The hydraulic cylinder can be controlled by an external controller to drive the positioning slider to slide, and the protrusion will enter the cam groove to achieve engagement. The telescopic rod and the spring can ensure the stability of the positioning slider, thereby effectively ensuring the fixation of the column and preventing the column from accidentally sliding down.

[0004] When the above device lifts the column, in order to avoid shaking during the lifting process, a gear groove is generally opened on the column and the overall lifting is achieved through external gear meshing transmission. However, in the actual drilling process, the column generally needs to rotate with the drill pipe to achieve the purpose of rapid drilling. Since the above lifting device adopts the gear tooth groove meshing method, it will not be able to match and adapt well when the column needs to be rotated and lifted, and cannot meet the lifting requirements when the column rotates. Therefore, a mine lifting device and a lifting method for an offshore exploration platform are proposed 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 present invention provides a mine hoisting device that adopts the following technical solutions:

[0007] A mine hoisting device comprises a platform plate, a moving platform is slidably connected to the top of the platform plate, a base is slidably connected to the top of the moving platform, and a control mechanism is provided on the top of the base;

[0008] The control mechanism includes 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 inside of the main body frame, a lifting block is slidably connected to the main body frame, the threaded control rod passes through the lifting block and is connected to the lifting block by a thread, one side of the lifting block is fixedly connected to a first socket, and a second socket is fixedly connected to a side wall of the main body frame, two mounting plates are provided on one side of the main body frame, both mounting plates are rotatably connected to ring plates, one side of the two ring plates is fixedly connected to plug plates, the two plug plates extend into the first socket and the second socket respectively, the plug plates match the first socket and the second socket respectively, and a positioning component is provided on the ring plate;

[0009] The positioning assembly includes two clamping plates, both of which are arranged on the inner side of the ring plate. The clamping plates extend out of the ring plate. A trapezoidal block is integrally formed at one end of the clamping plate. An outer ring plate is provided on the outer side of 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.

[0010] By adopting the above technical solution, when the column is lifted, after the column is inserted through the two ring plates in sequence, the clamping plate on the inner side of the ring plate on one side of the lifting block is first controlled to clamp the column, and the lifting of the column can be controlled or the main body can be driven downward by controlling the lifting of the lifting block in sequence. After a single lifting or lowering to the maximum operating distance of the threaded control rod, the clamping state of the clamping plate in the ring plate is released, and the clamping plate on the inner side of the lower ring plate is controlled to clamp and fix the column to maintain the height of the column. After controlling the lifting of the lifting block, the clamping plate in the ring plate on one side of the control block is re-clamped to the column. The lifting and lowering operation of the column can be quickly realized by this reciprocating movement, and it is controlled through operation. Compared with the case where the length of the column is longer, the lifting operation is performed by using a tower or other structure that matches the length of the column. The structure is simpler, the cost is lower, the volume occupied is smaller, and the corresponding safety is higher.

[0011] Preferably, a motor is fixedly connected to the top of the main frame, the motor is fixedly connected to a first gear through an output shaft, the outside of the threaded control rod is fixedly connected to a second gear, the first gear is arranged on one side of the second gear, and the first gear is meshed with the second gear.

[0012] By adopting the above technical solution, the motor drives the first gear to rotate after operation, and the first gear drives the second gear to rotate, thereby prompting the second gear to drive the threaded control rod to rotate, thereby achieving the purpose of the motor driving the threaded control rod.

[0013] Preferably, an oblique groove is provided on the trapezoidal block, and the control board extends into the oblique groove and matches the oblique groove.

[0014] By adopting the above technical solution, the control panel can move flexibly inside the inclined slot, and the inclined slot can also limit the control panel at the same time, so that the end of the control panel can only move along the groove of the inclined slot inside the inclined slot, thereby achieving the effect of stably pressing, pushing and pulling the trapezoidal block after the control panel moves.

[0015] Preferably, two auxiliary plates are fixedly connected to the top of the outer annular plate, and both auxiliary plates pass through the mounting plate. A movable plate is provided on one side of the mounting plate, and the movable plate is slidably connected to the top of the mounting plate. A first hydraulic rod is fixedly connected to one side of the movable plate, and one end of the first hydraulic rod is fixedly connected to a side wall of the mounting plate.

[0016] By adopting the above technical solution, the first hydraulic rod pushes and pulls the movable plate after operation.

[0017] Preferably, a push-pull rod is provided on the top of the movable plate, one end of the push-pull rod is movably connected to the top of the movable 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.

[0018] By adopting the above technical solution, the movable plate moves to drive the push-pull rod to swing, and the push-pull plate swings to form a push-pull effect on the auxiliary plate.

[0019] Preferably, a vertical plate is provided on the top of the platform plate, a connecting plate is fixedly connected between the vertical plate and the main frame, a movable plate is provided on one side of the vertical plate, a threaded adjustment rod is rotatably connected to the movable plate, the threaded adjustment rod passes through the vertical plate and is threadedly connected to the vertical plate, one end of the threaded adjustment rod is fixedly connected to the rotating plate, a rectangular block is slidably connected to the movable plate, a first limit plate is fixedly connected to the rectangular block, a second limit plate is integrally formed on the movable plate, the second limit plate is arranged at the bottom of the first limit plate, and the first socket, the second socket and the plug plate are all provided with limit slots, and the first limit plate and the second limit plate are both matched with the limit slots.

[0020] By adopting the above technical solution, the user controls the rotation of the threaded adjustment rod by manipulating the rotation of the rotating plate. When the threaded adjustment rod rotates, the vertical plate is further driven to move.

[0021] Preferably, a guide plate is fixedly connected to the movable plate, and the guide plate passes through the vertical plate.

[0022] By adopting the above technical solution, the movable plate of the guide plate is limited so as to maintain stable horizontal movement.

[0023] 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 platform.

[0024] By adopting the above technical solution, the second hydraulic rod pushes and pulls the movable platform after operation, and the extension plate plays a role in supporting and fixing the second hydraulic rod.

[0025] Preferably, a third hydraulic rod is fixedly connected inside the movable platform, and one end of the third hydraulic rod is fixedly connected to the base.

[0026] By adopting the above technical solution, the third hydraulic rod pushes and pulls the base horizontally after operation, thereby realizing rapid horizontal movement and adjustment of the base.

[0027] Another technical problem to be solved by the present invention is to provide a method for using a mine hoisting device as described above for hoisting an offshore exploration platform, comprising the following steps:

[0028] S1. Position adjustment

[0029] Before starting the lifting work, adjust the horizontal left and right position of the mobile platform according to the lifting position, and adjust the horizontal front and back position of the base in advance to achieve four-way adjustment;

[0030] S2. Column positioning

[0031] After the column to be lifted passes through the two ring plates, the column is clamped by controlling the two clamping plates to move toward each other. The upper ring plate can move up and down to clamp it separately and then perform the lifting operation. During the lifting gap, the column can be clamped by the clamping plate inside the lower ring plate to ensure its stability.

[0032] S3, column lifting

[0033] The lifting block is further controlled to perform the lifting operation by controlling the rotation of the threaded control rod. At this time, after the clamping plate inside the ring plate on one side of the lifting block maintains the clamping state of the column, the column can be lifted upward or pressed downward to move;

[0034] S4. Maintenance

[0035] After the lifting work is completed, if the ring plate needs to be disassembled for maintenance, the plug plate can be removed from the socket to complete the removal of the ring plate for further maintenance operations.

[0036] In summary, the present invention has the following beneficial technical effects:

[0037] 1. A mine hoisting device and a hoisting method for an offshore exploration platform. Through the design of a control mechanism, the main body is continuously hoisted by the reciprocating movement of a lifting block. In this way, the height of the hoisting device is not restricted by the length of the column. Compared with the case where the column is long and a tower or other structure that matches the column length is required for hoisting operations, the structure is simpler, the cost is lower, the volume occupied is smaller, and the corresponding safety is higher.

[0038] 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 lifting requirements when the column itself rotates, and has a wider range of applications. It avoids the situation where the clamping components are limited and cannot match well when the column itself needs to rotate.

[0039] 3. A mine hoisting device and a hoisting method for an offshore exploration platform. By setting two ring plates, the column can be clamped and the lifting can be controlled by the clamping plate on the inner side of one of the ring plates. During the lifting gap, the column is fixed by the clamping plate inside the other ring plate to maintain the stability of the adjusted height, thereby achieving flexible adjustment function and better stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic diagram of the structure of the present invention;

[0041] Figure 2 It is a disassembled diagram of the structure of the present invention;

[0042] Figure 3 It is a structural schematic diagram of the mounting plate in the present invention;

[0043] Figure 4 It is a cross-sectional structural diagram of the mounting plate in the present invention;

[0044] Figure 5 This is a cross-sectional structural diagram of the ring plate of the present invention;

[0045] Figure 6 It is a cross-sectional structural diagram of the main body frame in the present invention;

[0046] Figure 7 It is a structural diagram of the mobile station in the present invention.

[0047] Explanation of the accompanying drawings: 1. Platform plate; 2. Moving platform; 3. Base; 4. Control mechanism; 41. Main frame; 42. Threaded control rod; 43. Lifting block; 44. First socket; 45. Second socket; 46. Mounting plate; 47. Ring plate; 48. Insert plate; 49. Motor; 491. First gear; 492. Second gear; 493. Vertical plate; 494. Connecting plate; 495. Movable plate; 496. Threaded adjustment rod; 497. Rectangular block; 498. First limit plate; 499. Second limit plate; 481. Guide plate; 482. Second hydraulic rod; 483. Third hydraulic rod; 5. Positioning assembly; 51. Clamping plate; 52. Trapezoidal block; 53. Outer ring plate; 54. Inner ring plate; 55. Control plate; 56. Inclined groove; 57. Auxiliary plate; 58. Moving plate; 59. First hydraulic rod; 591. Push-pull rod. DETAILED DESCRIPTION

[0048] The following is combined with Figure 1 -Attached Figure 7 The present invention is described in further detail.

[0049] The present invention discloses a mine hoisting device. Figure 1-Figure 7 , including a platform plate 1, a mobile platform 2 is slidably connected to the top of the platform plate 1, a base 3 is slidably connected to the top of the mobile platform 2, and a control mechanism 4 is provided on the top of the base 3;

[0050] The control mechanism 4 includes a main frame 41, which is fixedly connected to the top of the base 3. A threaded control rod 42 is rotatably connected to the inside of the main frame 41. A lifting block 43 is slidably connected to the main frame 41. The threaded control rod 42 passes 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 a side wall of the main frame 41. Two mounting plates 46 are provided on one side of the main frame 41. Ring plates 47 are rotatably connected to the two mounting plates 46. One side of the two ring plates 47 is fixedly connected to an insert plate 48. The two insert plates 48 extend into the first socket 44 and the second socket 45 respectively. The insert plates 48 match the first socket 44 and the second socket 45 respectively. A positioning component 5 is provided on the ring plate 47.

[0051] The positioning assembly 5 includes two clamping plates 51, both of which are arranged on the inner side of the ring plate 47. The clamping plates 51 extend out of the outside of the ring plate 47, and one end of the clamping plate 51 is integrally formed with a trapezoidal block 52. An outer ring plate 53 is provided on the outer side of the ring plate 47, and 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 the column is lifted, the column is sequentially inserted through the two ring plates 47. First, the clamping plate 51 on the inner side of the ring plate 47 on one side of the lifting block 43 is controlled to clamp the column. By controlling the lifting of the lifting block 43, the lifting or lowering of the column can be achieved. Drive the main body downward, and after a single lift or drop to the maximum operating distance of the threaded control rod 42, release the clamping state of the clamping plate 51 in the ring plate 47, control the clamping plate 51 on the inner side of the lower ring plate 47 to clamp and fix the column to maintain the height of the column, and control the lifting block 43 to lift and lower, and then re-clamp the column with the clamping plate 51 in the ring plate 47 on one side of the control block. In this way, the lifting and lowering operation of the column can be quickly realized by reciprocating, and it is controlled through operation. Compared with the case where the length of the column is long, the use of a tower or other structure that matches the length of the column for lifting operation has a simpler structure, lower cost, smaller volume, and correspondingly higher safety.

[0052] A motor 49 is fixedly connected to the top of the main frame 41, and the motor 49 is fixedly connected to the first gear 491 through the output shaft. The outside of the threaded control rod 42 is fixedly connected to the second gear 492. The first gear 491 is arranged on one side of the second gear 492, and the first gear 491 is engaged 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 opened on the trapezoidal block 52, and the control board 55 extends into the inclined groove 56 and matches the inclined groove 56. The control board 55 can move flexibly inside the inclined groove 56.

[0053] Two auxiliary plates 57 are fixedly connected to the top of the outer annular plate 53, and the two auxiliary plates 57 both pass through the mounting plate 46. A movable plate 58 is provided on one side of the mounting plate 46, and the movable 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 movable plate 58, and one end of the first hydraulic rod 59 is fixedly connected to a side wall of the mounting plate 46. After the first hydraulic rod 59 works, it pushes and pulls the movable plate 58. A push-pull rod 591 is provided on the top of the movable plate 58, and one end of the push-pull rod 591 is movably connected to the top of the movable plate 58 through a movable hinge seat, and 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 movable plate 58 moves, it drives the push-pull rod 591 to swing.

[0054] A vertical plate 493 is provided on the top of the platform plate 1, and a connecting plate 494 is fixedly connected between the vertical plate 493 and the main frame 41, and a movable plate 495 is provided on one side of the vertical plate 493, and a threaded adjustment rod 496 is rotatably connected to the movable plate 495, and the threaded adjustment rod 496 passes through the vertical plate 493 and is connected to the vertical plate 493 by a thread, and one end of the threaded adjustment rod 496 is fixedly connected to the rotating plate, and a rectangular block 497 is slidably connected to the movable plate 495, and a first limiting plate 498 is fixedly connected to the rectangular block 497, and a second limiting plate 499 is integrally formed on the movable plate 495, and the second limiting plate 499 is arranged at the bottom of the first limiting plate 498, and the first socket 44, the second socket 45 and the plug plate 48 are all provided with limiting slots, and the first limiting plate 498 and the second limiting plate 499 are matched with the limiting slots, and the user controls the rotation of the threaded adjustment rod 496 by manipulating the rotation of the rotating plate;

[0055] A guide plate 481 is fixedly connected to the movable plate 495, and the guide plate 481 passes through the vertical plate 493. The guide plate 481 and the movable plate 495 are limited to maintain stable horizontal movement. An extension plate is integrally formed on the top of the platform plate 1, and 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 mobile platform 2. After the second hydraulic rod 482 is working, it pushes and pulls the mobile platform 2. A third hydraulic rod 483 is fixedly connected to the inside of the mobile platform 2, and one end of the third hydraulic rod 483 is fixedly connected to the base 3. After the third hydraulic rod 483 is working, it pushes and pulls the base 3 horizontally.

[0056] Another technical problem to be solved by the present invention is to provide a method for hoisting a mine hoisting device for an offshore exploration platform, comprising the following steps:

[0057] S1. Position adjustment

[0058] Before the lifting work begins, the horizontal left and right position of the movable platform 2 is adjusted according to the lifting position, and the horizontal front and back position of the base 3 is adjusted in advance, thereby achieving four-way adjustment;

[0059] S2. Column positioning

[0060] After the column to be lifted passes through the two ring plates 47, the column is clamped by controlling the two clamping plates 51 to move toward each other. The upper ring plate 47 can move up and down to clamp the column separately and then perform the lifting operation. During the lifting gap, the clamping plate 51 inside the lower ring plate 47 can be used to clamp the column to ensure its stability.

[0061] S3, column lifting

[0062] By controlling the rotation of the threaded control rod 42, the lifting block 43 is further controlled to perform the lifting operation. At this time, the clamping plate 51 inside the ring plate 47 on one side of the lifting block 43 maintains a clamping state on the column, and can apply an upward lifting or downward pressure to move the column;

[0063] S4. Maintenance

[0064] 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 to complete the removal of the ring plate 47 for further maintenance operations.

[0065] In actual operation, when this device is used, first, the device is connected to the power supply. When the column is lifted, the column is sequentially inserted through the two ring plates 47. 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 move up and down, the lifting block 43 drives the first socket 44 to move up and down, the first socket 44 drives the internal plug-in plate 48 to move, and this plug-in plate 48 drives the connected ring plate 47 to move up and down. When the lifting block 43 moves up and down, it can drive the ring plate 47 on one side to move up and down, while the ring plate 47 on the side of the second socket 45 is fixed in position and cannot be moved.

[0066] When it is necessary to clamp and fix the column area inside the ring plate 47, the first hydraulic rod 59 works and pushes and pulls the movable plate 58, and the movable plate 58 moves and drives the push-pull rod 591 on 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, and the outer ring plate 53 drives the inner ring plate 54 to move, and 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 an extrusion effect on the trapezoidal block 52, prompting the trapezoidal block 52 to move horizontally. When the two trapezoidal blocks 52 drive the clamping plate 51 to move toward each other, the clamping plate 51 can be prompted to clamp and fix the outer surface of the column;

[0067] After the clamping plate 51 on the inner side of the ring plate 47 of the lifting block 43 is controlled separately by the above operation to clamp the column, the column can be controlled to be lifted or applied with a downward thrust by controlling the lifting block 43. Moreover, since the inner ring plate 54 is rotatably connected to the outer ring plate 53, during the process of controlling the lifting 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, the device can effectively match the lifting requirements when the column itself rotates, and has a wider range of applications, avoiding the situation where the clamping parts are limited and cannot be well matched when the column itself needs to rotate. After the operating distance, the clamping state of the clamping plate 51 in the circle plate 47 is released, and the clamping plate 51 inside the lower circle plate 47 is controlled to clamp and fix the column to maintain a stable height of the column. After further controlling the lifting block 43 to rise and fall to the initial position, the clamping plate 51 in the circle plate 47 on one side of the control block is readjusted to clamp the column, and then the lifting block 43 is continued to be controlled to move. This operation is repeated to realize the lifting operation of the column, and this operation is controlled. Compared with the case where the length of the column is long and a tower structure such as a tower structure matching the length of the column is used for lifting operation, the overall height of the device is smaller, the structure is simpler, the cost is lower, and it has the characteristics of smaller occupied volume and higher safety.

[0068] Finally, after the lifting work is completed, if the ring plate 47 needs to be disassembled and maintained, the threaded adjustment rod 496 can be rotated, and the threaded adjustment rod 496 can be moved after being rotated. At this time, the threaded adjustment rod 496 drives the movable plate 495 to move, and 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 are moved to one side of the two plug-in plates 48 respectively, the two plug-in plates 48 can be taken out from the first socket 44 and the second socket 45 respectively. In this way, the removal of the ring plate 47 is completed. The convenient disassembly operation is conducive to the maintenance of the ring plate 47 and the components on the ring plate 47, and when the ring plate 47 and other components are damaged, they can be quickly replaced to ensure the normal development of the lifting work. By setting two ring plates 47, the column can be clamped and the lifting can be controlled by the clamping plate 51 on the inner side of one of the ring plates 47. In the gap between lifting, it is fixed by the clamping plate 51 in the other ring plate 47 to keep the adjusted height stable, realizing flexible adjustment function while having better stability.

[0069] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mine hoisting device, comprising a platform plate, characterized in that: The top of the platform plate is slidably connected to a moving platform, the top of the moving platform is slidably connected to a base, and the top of the base is provided with a control mechanism; The control mechanism includes a main body frame, the main body frame is fixedly connected to the top of the base, the main body frame is rotatably connected to the inside of the main body frame, and a lifting block is slidably connected to the main body frame, the threaded control rod passes through the lifting block and is connected to the lifting block by a thread, one side of the lifting block is fixedly connected to the first socket, and a second socket is fixedly connected to a side wall of the main body frame, two mounting plates are provided on one side of the main body frame, the two mounting plates are rotatably connected to ring plates, one side of the two ring plates is fixedly connected to an insert plate, the two insert plates extend into the first socket and the second socket respectively, and the insert plates are matched with the first socket and the second socket respectively, the top of the main frame is fixedly connected to a motor, the motor is fixedly connected to a first gear through an output shaft, the outside of the threaded control rod is fixedly connected to a second gear, the first gear is arranged on one side of the second gear, and the first gear is meshed with the second gear, and a positioning assembly is provided on the ring plate; The camming plate is fixedly mounted on the outside of the frame, and the camming plate is pivotally connected to the top of the frame by a bolt, and the bolt has a round shank to move relative to the top of the frame.

2. A mine hoisting device according to claim 1, characterized in that: The trapezoidal block is provided with an oblique slot, and the control board extends into the oblique slot and matches the oblique slot.

3. A mine hoisting device according to claim 1, characterized in that: The top of the platform plate is provided with a vertical plate, and a connecting plate is fixedly connected between the vertical plate and the main frame. A movable plate is provided on one side of the vertical plate, and a threaded adjustment rod is rotatably connected to the movable plate. The threaded adjustment rod passes through the vertical plate and is connected to the vertical plate by a thread. One end of the threaded adjustment rod is fixedly connected to the rotating plate, and a rectangular block is slidably connected to the movable plate. The rectangular block is fixedly connected to the first limit plate, and a second limit plate is integrally formed on the movable plate. The second limit plate is arranged at the bottom of the first limit plate, and the first socket, the second socket and the plug plate are all provided with limit slots, and the first limit plate and the second limit plate both match the limit slots.

4. A mine hoisting device according to claim 3, characterized in that: A guide plate is fixedly connected to the movable plate, and the guide plate passes through the vertical plate.

5. 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, and one end of the second hydraulic rod is fixedly connected to one side of the moving platform.

6. A mine hoisting device according to claim 1, characterized in that: A third hydraulic rod is fixedly connected inside the movable platform, and one end of the third hydraulic rod is fixedly connected to the base.

7. A method for hoisting an offshore exploration platform using a mine hoisting device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Position adjustment Before starting the lifting work, adjust the horizontal left and right position of the mobile platform according to the lifting position, and adjust the horizontal front and back position of the base in advance to achieve four-way adjustment; S2. Column positioning After the column to be lifted passes through the two ring plates, the column is clamped by controlling the two clamping plates to move toward each other. The upper ring plate can move up and down to clamp it separately and then perform the lifting operation. During the lifting gap, the column can be clamped by the clamping plate inside the lower ring plate to ensure its stability. S3, column lifting The lifting block is further controlled to perform the lifting operation by controlling the rotation of the threaded control rod. At this time, after the clamping plate inside the ring plate on one side of the lifting block maintains the clamping state of the column, the column can be lifted upward or pressed downward to move; S4. Maintenance After the lifting work is completed, if the ring plate needs to be disassembled for maintenance, the plug plate can be removed from the socket to complete the removal of the ring plate for further maintenance operations.

Images