Ultra-deep vertical shaft crawler-type shaft sinking hanging scaffold system and using method thereof

Abstract

The invention discloses an ultra-deep vertical shaft crawler-type shaft sinking hanging scaffold system and a using method thereof. According to the system, a crawler climbing mechanism is arranged in a crawler mounting space on a shaft sinking hanging scaffold; the supporting base is installed on the outer circle face of the crawler belt supporting disc. The track oil cylinder and the swing connecting plate are connected to the supporting base and are connected with the track trolley through the trolley body connecting frame; the anti-skid tight supporting mechanism is arranged in a supporting shoe mounting space on the sinking hanging scaffold; the anti-skid tight supporting mechanism comprises a guide support and a telescopic supporting shoe assembly. The guide supporting assembly comprises a heightening support and an inner guide supporting plate. The gripper oil cylinder is connected with the anti-skid gripper through the guide connecting plate, and the inner guide supporting plate guides the movement of the outer guide connecting plate. The method comprises the following steps: fixing a construction position by jointly supporting a well wall through crawler climbing and an anti-slip supporting mechanism; and the crawler climbing mechanism is used for driving the whole sinking hanging scaffold to lift and move in a well. The shaft sinking hanging scaffold can continuously move in a shaft, and the lifting efficiency is remarkably improved compared with a stepping type shaft sinking hanging scaffold.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of mine shaft construction equipment, and particularly relates to a super-deep mine shaft crawler-type shaft sinking platform system and a use method thereof. BACKGROUND

[0002] The shaft sinking platform is a working platform for shaft sinking construction in a mine shaft, and a traditional shaft sinking platform is suspended by a ground winch steel wire rope. With the continuous increase of the shaft sinking depth, the self-weight of the steel wire rope is continuously increased, and the suspension safety factor is continuously reduced under the condition of constant terminal load, which causes the selection difficulty of the steel wire rope, a winch stabilizer and the like for the super-deep mine shaft sinking suspension. In order to solve this problem, a beam nest or a support shoe step type shaft sinking platform in-hole fixing method has appeared. This method mainly relies on the shaft wall friction of the beam nest or the support shoe shaft wall to realize the shaft wall fixing. A vertical step oil cylinder is arranged between the beam nest or the support shoe disc surfaces, the shaft sinking platform is lifted in the shaft by the alternate support of the beam nest or the support shoe disc surfaces and the extension and contraction of the step oil cylinder, and the strict synchronization requirement of the alternate support conversion and the step hydraulic oil cylinder makes the step lifting mode have a discontinuous characteristic, so that the lifting speed is low. According to the current shaft sinking construction safety regulations, the shaft sinking platform is about 12 m away from the working face during the tunneling and wall lining operation, and needs to be lifted by about 40 m to ensure the construction safety during the working face blasting. With the conversion of the shaft sinking construction process, the shaft sinking platform needs to be frequently lifted in the shaft, and the low-speed efficiency of the step lifting mode cannot meet the current construction needs.

[0003] Therefore, it is urgent to provide a super-deep mine shaft crawler-type shaft sinking platform system and a use method, which can effectively adapt to the frequent lifting requirement of the shaft sinking platform due to the process conversion. SUMMARY

[0004] In view of the problems existing in the prior art, the present application provides a super-deep mine shaft crawler-type shaft sinking platform system and a use method. The system has a compact structure, high stability, strong climbing driving force and ideal radial positioning effect, can effectively adapt to the frequent lifting and rapid continuous lifting requirements of the shaft sinking platform due to the process conversion, can effectively ensure the safety of the shaft sinking operation in the shaft, can effectively meet the current shaft construction needs, and has a simple implementation process and ideal safety. The system can realize the continuous climbing and descending operation mode of the shaft sinking platform, can significantly improve the lifting efficiency, and can realize the reliable suspension fixing of any construction position in the shaft, thereby solving the suspension problem of the shaft sinking platform for the super-deep mine shaft construction.

[0005] In order to achieve the above-mentioned purpose, the present application provides a super-deep mine shaft crawler-type shaft sinking platform system, which comprises a shaft sinking platform, a crawler climbing mechanism and an anti-skid supporting mechanism. The well sinking platform includes a track support plate and a support shoe support plate, with the support shoe support plate coaxially disposed below the track support plate; the well sinking platform is provided with multiple pairs of track mounting spaces and one or more pairs of support shoe mounting spaces along the circumferential direction; each pair of track mounting spaces and each pair of support shoe mounting spaces are relatively distributed at both ends of the radial direction of the well sinking platform. Multiple track climbing mechanisms are respectively installed in multiple track mounting spaces; each track climbing mechanism includes a support base, a track trolley, a chassis connecting frame, track cylinders, and a swing connecting plate; the support base is vertically fixedly installed on the track support plate; the track trolley is vertically arranged on the outside of the support base, and its internal drive mechanism is a hydraulic motor; the chassis connecting frame is arranged between the support base and the track trolley, and one of its outer ends is fixedly connected to the chassis of the track trolley; the two ends of the track cylinder are respectively hinged to the lower end of the support base and one end of the inner side of the chassis connecting frame; the two ends of the swing connecting plate are respectively hinged to the upper end of the support base and one end of the inner side of the chassis connecting frame. One or more pairs of anti-slip tensioning mechanisms are respectively installed in one or more pairs of support shoe installation spaces; the anti-slip tensioning mechanism includes two anti-slip tensioning units distributed circumferentially at intervals, and the anti-slip tensioning unit includes a guide support assembly and a telescopic support shoe assembly; the guide support assembly includes a raised support and an inner guide support plate, the raised support is located on the outside of the track support plate, it has an arc-shaped structure, and its lower end is fixedly connected to the upper end surface of the support shoe support plate; multiple inner guide support plates are evenly distributed circumferentially on the outer arc surface of the raised support, the length direction of the inner guide support plate extends radially, its inner end is fixedly connected to the upper end of the raised support, its outer end has a sloping structure with the outer side higher than the inner side, and the center of its outer end is open. The system includes a guide groove that slopes downwards from the outside; the telescopic support shoe assembly includes an anti-slip support shoe, an outer guide connecting plate, and support shoe cylinders; the anti-slip support shoe has an arc-shaped plate structure and is correspondingly positioned on the outer side of the upper end of the raised support; multiple outer guide connecting plates are distributed correspondingly to multiple inner guide support plates, with the outer ends of the outer guide connecting plates fixedly connected to the inner arc surface of the anti-slip support shoe, and the inner ends of the outer guide connecting plates having a sloped structure that slopes downwards from the outside, and the inner ends of the outer guide connecting plates being slidably inserted into the guide grooves; multiple support shoe cylinders are correspondingly positioned below the multiple outer guide connecting plates, with the cylinders sloped downwards from the outside, and the end of the cylinder barrel is fixedly mounted on the upper end surface of the support shoe support plate, with the end of the piston rod hinged to the lower end of the outer guide connecting plate.

[0006] Furthermore, in order to ensure a reliable power supply, a hydraulic pump station is also included; the hydraulic pump station is installed on the track support plate and is connected to the hydraulic motors on the support shoe cylinder, track cylinder and track trolley respectively through multiple high-pressure oil pipes.

[0007] Furthermore, in order to meet the needs of vertical shaft drilling operations, an upper working plate is also included; the upper working plate is set below the support plate and is fixedly connected to the support plate by multiple upper connecting columns.

[0008] Furthermore, in order to meet the needs of vertical shaft sinking operations, a lower working plate is also included; the lower working plate is located below the upper working plate and is fixedly connected to the upper working plate by multiple lower connecting columns.

[0009] As a preferred embodiment, the track support plate includes a ring beam and an internal support frame; the internal support frame is fixedly connected inside the ring beam, and multiple suspension points are provided on the internal support frame.

[0010] As a further preferred embodiment, the internal support frame includes a main crossbeam, longitudinal beams, auxiliary crossbeam one, and auxiliary crossbeam two; two main crossbeams are arranged opposite each other inside the ring beam, and the two ends of each main crossbeam are fixedly connected to the inner walls of both sides of the ring beam; two longitudinal beams are arranged alternately between the two main crossbeams, and the two ends of each longitudinal beam are fixedly connected to the two main crossbeams; multiple auxiliary crossbeam one are distributed alternately between the two main crossbeams, and the left end of each auxiliary crossbeam one is fixedly connected to the inner wall of the ring beam, and the right end of each auxiliary crossbeam one is fixedly connected to the longitudinal beam on the left side; multiple auxiliary crossbeam two are distributed alternately between the two main crossbeams, and the left end of each auxiliary crossbeam two is fixedly connected to the longitudinal beam on the right side, and the right end of each auxiliary crossbeam two is fixedly connected to the inner wall of the ring beam.

[0011] As a preferred embodiment, the well-drilling platform further includes multiple short columns and a circular cover plate; the multiple short columns are disposed between the track support plate and the support shoe support plate, and the upper and lower ends of the multiple short columns are fixedly connected to the track support plate and the support shoe support plate respectively; the outer diameter of the circular cover plate is larger than the outer diameter of the ring beam, and it is coaxially fixedly connected to the upper end of the ring beam; the circular cover plate has two support shoe installation notches in the portion corresponding to two support shoe installation spaces, and multiple track installation notches in the portion corresponding to multiple pairs of track installation spaces.

[0012] Furthermore, in order to enable timely detection of stall and sag, and to automatically take locking and positioning measures in real time, an acceleration sensor and a controller are also included; the acceleration sensor is installed on the drilling platform, and the controller is connected to the acceleration sensor and the hydraulic pump station respectively.

[0013] In this invention, the main body of the well-drilling platform is composed of track support plates and support shoe support plates spaced vertically. This facilitates the use of the track support plates as the mounting base for the track climbing mechanism and the support shoe support plates as the mounting base for the anti-slip tensioning mechanism. For the anti-slip tensioning mechanism, a raised support is fixedly installed on the support shoe support plate on the inner side, providing a high-level mounting base for the inner guide support plate. A guide groove is formed along the outer end of the inner guide support plate, providing a guide track for the outer guide connecting plate installed inside the anti-slip support shoe. Based on this, multiple inner guide support plates are fixedly installed on the outer side of the upper end of the raised support, and multiple outer guide connecting plates are fixedly installed on the inner side of the anti-slip support shoe. Multiple support shoe cylinders, inclined and mounted on the support shoe support plate, are hinged to the lower ends of the multiple outer guide connecting plates. The extension of the piston rods of these cylinders pushes the outer guide connecting plates to slide quickly outwards along the guide grooves on the inner guide support plates. This allows the anti-slip support shoe to act stably and efficiently against the well wall. Simultaneously, the inner guide support plates provide stable support for the anti-slip support shoe, which is tightened against the well wall. Through the combined action of the inner guide support plates and the support shoe cylinders, the anti-slip support shoe can act stably against the well wall, providing significant friction. This mechanism allows for rapid radial locking to prevent the drilling platform from stalling and sliding down in the event of slippage during lifting or lowering. For the tracked climbing mechanism, a support bracket is installed on the outer circumference of the track support plate, which provides a movable connection support base for the inner end of the swing connecting plate and the cylinder end of the track cylinder. The outer end of the vehicle body connecting frame is fixedly connected to the chassis of the tracked trolley, and the outer end of the swing connecting plate and the piston rod end of the track cylinder are connected to the inner end of the vehicle body connecting frame. This allows the extension of the track cylinder piston rod to drive the tracked trolley towards the well wall, achieving a state of contact with the well wall. Based on this, on the one hand, during the suspension and fixing process, multiple tracked climbing mechanisms can be in a state of circumferential contact with the well wall, cooperating with multiple anti-slip clamping mechanisms that circumferentially support the well wall to provide reliable suspension and fixing support force, thus achieving the suspension and fixing of the well sinking platform inside the well. On the other hand, by driving the tracked trolley with a hydraulic motor, the hydraulic motor can be used to drive the tracked trolley to move continuously during the climbing process, thereby significantly improving the descent or ascent efficiency and effectively meeting the needs of efficient and safe lifting and lowering of the well sinking platform.This invention utilizes a hydraulic motor to drive a tracked trolley for continuous movement, enabling continuous lifting and lowering of the well sinking platform within the well via multiple pairs of tracked climbing mechanisms. Simultaneously, it applies radial pressure to the anti-slip clamping mechanism using hydraulic cylinders for support shoes. This provides a safety interlocking function in case of slippage during lifting, effectively preventing the well sinking platform from slipping and sliding down. Furthermore, the invention uses track cylinders to apply radial pressure to the tracked climbing mechanism, ensuring the tracks on the tracked trolley adhere tightly to the well wall, thus guaranteeing climbing efficiency. It also facilitates the suspension and fixation of the well sinking platform within the well via multiple pairs of tracked climbing mechanisms and multiple anti-slip clamping mechanisms, providing a reliable solution to the problems of difficult suspension and low lifting efficiency of well sinking platforms in ultra-deep vertical shafts.

[0014] This system features a compact structure, high stability, strong climbing drive, ideal radial positioning effect, and autonomous continuous lifting capability. It achieves long-distance descent of the well sinking platform inside the well through hydraulically driven crawler movement, revolutionizing the traditional wire rope suspension lifting method of the well sinking platform. It can effectively adapt to the frequent lifting and rapid continuous lifting requirements faced by the well sinking platform due to process changes. At the same time, it can effectively ensure the safety of well sinking operations inside the well and effectively meet the current needs of well construction.

[0015] This invention also provides a method for using an ultra-deep vertical shaft tracked drilling platform system, which includes the following steps: Step 1: At the wellhead location, use the suspension system to hoist and assemble the ultra-deep vertical shaft crawler sinking platform system using a stabilizing rope; Step Two: As the wellbore enters the normal construction cycle, when the sinking platform reaches the predetermined construction position, simultaneously control the extension of multiple support shoe cylinders in multiple anti-slip tensioning mechanisms to extend to a set length, driving multiple anti-slip support shoes to tighten the well wall in the circumferential direction. At the same time, control the extension of multiple track cylinders in multiple track climbing mechanisms to extend to a set length, driving the tracks on multiple track carriages to press tightly against the well wall in the circumferential direction. Utilize the friction between the multiple anti-slip support shoes and the tracks on the multiple track carriages and the well wall to suspend and fix the sinking platform in the predetermined construction position inside the well. After the sinking platform is fixed in position, tighten the stabilizing rope and maintain the required tension. Step 3: After completing the construction at the previously designated construction position, simultaneously control the multiple anti-slip support cylinders in the multiple anti-slip support mechanisms to retract to a set length, so that the multiple anti-slip support shoes are distributed with gaps between them and the well wall. At the same time, while keeping the tracks on the multiple tracked trolleys in close contact with the well wall, simultaneously control the multiple hydraulic motors in the multiple tracked climbing mechanisms to start working. When it is necessary to move the well sinking platform downward, drive the multiple tracked trolleys to move downward along the well wall. At the same time, during the downward movement of the well sinking platform, simultaneously lower the stabilizing rope. When it is necessary to move the well sinking platform upward, drive the multiple tracked trolleys to climb upward along the well wall. At the same time, during the upward movement of the well sinking platform, simultaneously raise the stabilizing rope. Step 4: Upon reaching the next predetermined construction position, control multiple hydraulic motors to stop working. Simultaneously, control multiple support shoe cylinders in multiple anti-slip tensioning mechanisms to extend to a set length, driving multiple anti-slip support shoes to tighten the well wall in the circumferential direction. At the same time, control multiple track cylinders in multiple track climbing mechanisms to extend to a set length, driving the tracks on multiple track carriages to press tightly against the well wall in the circumferential direction. Utilize the friction between the multiple anti-slip support shoes and the tracks on the multiple track carriages and the well wall to fix the well sinking platform at the predetermined construction position inside the well. After the well sinking platform is fixed in position, tighten the stabilizing rope and maintain the required tension. Step 5: Repeat steps 3 and 4 multiple times until construction is completed at all designated locations.

[0016] Furthermore, in order to automatically and promptly take safety measures such as positioning and locking when a stall and sag occurs during the lifting process, in steps three and five, the acceleration signal of the well sinking platform is collected in real time using an acceleration sensor. The controller determines whether a stall and sag has occurred based on the changes in the acceleration signal. When a stall and sag occurs, the controller controls the hydraulic pump station to operate, synchronously driving multiple anti-slip support cylinders in multiple anti-slip support mechanisms to extend to a set length, driving multiple anti-slip support shoes to support the well wall in the circumferential direction, thereby achieving rapid locking and positioning at the current height position.

[0017] This invention provides a method for using a tracked drilling platform system for ultra-deep vertical shafts. It employs multiple anti-slip bracing mechanisms in conjunction with multiple tracked climbing mechanisms to achieve suspended fixation of the drilling platform within the shaft, effectively ensuring the reliability of the platform's positioning. Simultaneously, it significantly reduces reliance on traditional suspension wire ropes and vehicle tension. Furthermore, the use of multiple tracked climbing mechanisms enables continuous lifting, greatly improving lifting efficiency and effectively adapting to the high-frequency lifting requirements within the shaft. This solves the problem of low lifting efficiency in traditional hydraulic cylinder stepping methods, which cannot meet the needs of rapid vertical shaft construction.

[0018] This method enables continuous climbing and lowering of the well sinking platform, improving lifting efficiency and enabling reliable suspension and fixation at any construction position inside the well, thus solving the problem of suspending the well sinking platform in ultra-deep vertical shaft construction. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the assembly of the lifting platform system inside the well wall in this invention; Figure 2 yes Figure 1 Sectional view along the middle AA direction; Figure 3 yes Figure 1 Sectional view along the BB direction; Figure 4 yes Figure 3 A sectional view along line 1-1; Figure 5 yes Figure 3 Sectional view along line 2-2; Figure 6 This is a schematic diagram of the assembly of the telescopic support shoe assembly and the support shoe cylinder in this invention; Figure 7 This is an assembly diagram of the telescopic support shoe assembly and the guide support assembly in this invention; Figure 8 This is a block diagram of the control section in this invention.

[0020] In the diagram: 1. Drilling platform; 2. Track support plate; 3. Short column; 4. Support shoe support plate; 5. Track climbing mechanism; 6. Anti-slip tensioning mechanism; 7. Support shoe cylinder; 8. Anti-slip support shoe; 9. Elevating support; 10. Outer guide connecting plate; 11. Support shoe installation space; 12. Track installation space; 13. Inner guide support plate; 14. Guide groove; 15. Guide support assembly; 16. Telescopic support shoe assembly; 17. Support base. 18. Tracked trolley; 19. Tracked cylinder; 20. Body connecting frame; 21. Swing connecting plate; 22. Upper working plate; 23. Lower working plate; 24. Upper connecting column; 25. Lower connecting column; 26. Hydraulic pump station; 27. Ring beam; 28. Main crossbeam; 29. ​​Longitudinal beam; 30. Auxiliary crossbeam one; 31. Auxiliary crossbeam two; 32. Internal support frame; 33. Suspension point; 34. Stabilizing rope; 35. Well wall; 36. Round cover plate. Detailed Implementation

[0021] The present invention will be further described below.

[0022] like Figures 1 to 8 As shown, the present invention provides an ultra-deep vertical shaft tracked drilling platform system, including a drilling platform 1, a tracked climbing mechanism 5, and an anti-slip support mechanism 6; The well sinking platform 1 includes a track support plate 2 and a support shoe support plate 4, the support shoe support plate 4 being coaxially disposed below the track support plate 2; as a preferred embodiment, in order to improve the overall load-bearing strength and connection strength of the well sinking platform, the support shoe support plate is also fixedly connected to the track support plate by multiple stiffening plates; the well sinking platform 1 is provided with multiple pairs of track mounting spaces 12 and one or more pairs of support shoe mounting spaces 11 along the circumferential direction; each pair of track mounting spaces 12 and each pair of support shoe mounting spaces 11 are relatively distributed at both ends of the radial direction of the well sinking platform 1; Multiple track climbing mechanisms 5 are respectively installed in multiple track mounting spaces 12; each track climbing mechanism 5 includes a support base 17, a track trolley 18, a chassis connecting frame 20, a track cylinder 19, and a swing connecting plate 21; the support base 17 is vertically fixedly installed on the track support plate 2; the track trolley 18 is vertically arranged outside the support base 17, and its internal drive mechanism is a hydraulic motor; the chassis connecting frame 20 is arranged between the support base 17 and the track trolley 18, and one of its outer ends is fixedly connected to the chassis of the track trolley 18. The two ends of the track cylinder 19 are respectively hinged to the lower end of the support 17 and one end of the inner side of the vehicle body connecting frame 20; the two ends of the swing connecting plate 21 are respectively hinged to the upper end of the support 17 and one end of the inner side of the vehicle body connecting frame 20; specifically, the end of the cylinder of the track cylinder 19 is connected to the lower end of the support 17 through the lower hinge seat, and the end of its piston rod is hinged to one end of the inner side of the vehicle body connecting frame 20; the inner end of the swing connecting plate 21 is hinged to the upper end of the support 17, and its outer end is hinged to one end of the inner side of the vehicle body connecting frame 20. One or more pairs of anti-slip tensioning mechanisms 6 are respectively arranged in one or more pairs of support shoe installation spaces 11; the anti-slip tensioning mechanism 6 includes two anti-slip tensioning units distributed circumferentially at intervals, the anti-slip tensioning unit includes a guide support assembly 15 and a telescopic support shoe assembly 16; the guide support assembly 15 includes a raised support 9 and an inner guide support plate 13, the raised support 9 is located on the outside of the track support plate 2, it has an arc-shaped structure, and its lower end is fixedly connected to the upper end surface of the support shoe support plate 4; multiple inner guide support plates 13 are evenly distributed circumferentially on the outer arc surface of the raised support 9, the length direction of the inner guide support plate 13 extends radially, its inner end is fixedly connected to the upper end of the raised support 9, its outer end is a sloping structure with the outer side higher than the inner side, and its outer end has a guide groove 14 extending slopingly with the outer side higher than the inner side at its center; the telescopic support shoe assembly 16 includes anti-slip tensioning units 6 and 6. The system includes a sliding support shoe 8, an outer guide connecting plate 10, and a support shoe cylinder 7. The anti-slip support shoe 8 has an arc-shaped plate structure and is correspondingly set on the outer side of the upper end of the raised support 9. Preferably, the outer arc surface of the anti-slip support shoe 8 is provided with several anti-slip patterns. Alternatively, a rubber anti-slip pad can be installed on the outer arc surface of the anti-slip support shoe 8. Multiple outer guide connecting plates 10 are distributed one-to-one with multiple inner guide support plates 13. The outer end of the outer guide connecting plate 10 is fixedly connected to the inner arc surface of the anti-slip support shoe 8, and its inner end is a sloping structure with the outer side higher than the inner side. The inner end is slidably inserted into the guide groove 14. Multiple support shoe cylinders 7 are correspondingly set below the multiple outer guide connecting plates 10. The support shoe cylinder 7 is inclined with the outer side higher than the inner side. The end of its cylinder is fixedly installed on the upper end surface of the support shoe support plate 4, and the end of its piston rod is hinged to the lower end of the outer guide connecting plate 10.

[0023] To facilitate the supply of power to the hydraulic motors on the support shoe cylinder 7, track cylinder 9, and track carriage 18, a hydraulic pump station 26 is also included. The hydraulic pump station 26 is installed on the track support plate 2 and is connected to the hydraulic motors on the support shoe cylinder 7, track cylinder 19, and track carriage 18 respectively through multiple high-pressure oil pipes.

[0024] As an alternative, it also includes well drilling equipment such as water tanks and horizontal pumps required for construction operations. These well drilling equipment can be mounted on the track support plate 2, or on the support shoe plate 4, or on the upper working plate 22 and the lower working plate 23.

[0025] In order to meet the needs of shaft sinking operations, an upper working plate 22 is also included; the upper working plate 22 is located below the support plate 4 and is fixedly connected to the support plate 4 by multiple upper connecting columns 24.

[0026] To meet the needs of vertical shaft drilling operations, a lower working plate 23 is also included; the lower working plate 23 is located below the upper working plate 22 and is fixedly connected to the upper working plate 22 by multiple lower connecting columns 25.

[0027] Of course, in order to meet different work needs, an additional work plate can be set below the lower work plate 23 on the basis of the upper work plate 22 and the lower work plate 23.

[0028] As a preferred embodiment, the track support plate 2 includes a ring beam 27 and an internal support frame 32; the internal support frame 32 is fixedly connected to the inside of the ring beam 27, and the internal support frame 32 is provided with multiple suspension points 33, which are connected to the stabilizing rope suspension system.

[0029] As a further preferred embodiment, the internal support frame 32 includes a main crossbeam 28, longitudinal beams 29, an auxiliary crossbeam 1 30, and an auxiliary crossbeam 2 31; two main crossbeams 28 are arranged opposite each other inside the ring beam 27, and both ends of each main crossbeam 28 are fixedly connected to the inner walls of both sides of the ring beam 27; two longitudinal beams 29 are arranged spaced apart between the two main crossbeams 28, and both ends of each longitudinal beam 29 are fixedly connected to the two main crossbeams 28; multiple auxiliary crossbeams... Auxiliary beams 30 are distributed alternately between the two main crossbeams 28, and the left end of each auxiliary crossbeam 3 is fixedly connected to the inner wall of the ring beam 27, and the right end of each auxiliary crossbeam 3 is fixedly connected to the left longitudinal beam 29; multiple auxiliary crossbeams 31 are distributed alternately between the two main crossbeams 28, and the left end of each auxiliary crossbeam 31 is fixedly connected to the right longitudinal beam 29, and the right end of each auxiliary crossbeam 31 is fixedly connected to the inner wall of the ring beam 27.

[0030] As a preferred embodiment, the well-drilling platform 1 further includes multiple short columns 3 and a circular cover plate 36; the multiple short columns 3 are disposed between the track support plate 2 and the support shoe support plate 4, and the upper and lower ends of the multiple short columns 3 are fixedly connected to the track support plate 2 and the support shoe support plate 4 respectively; the outer diameter of the circular cover plate 36 is larger than the outer diameter of the ring beam 27, and it is coaxially fixedly connected to the upper end of the ring beam 27; the circular cover plate 36 has two support shoe installation notches in the portion corresponding to the two support shoe installation spaces 11, and multiple track installation notches in the portion corresponding to the multiple pairs of track installation spaces 12.

[0031] As a preferred embodiment, there are two pairs of track climbing mechanisms 5, that is, the number of track climbing mechanisms 5 is four, and the number of anti-slip tensioning mechanisms 6 is also four.

[0032] Of course, in order to protect the driving force of the track climbing mechanism, the number of track climbing mechanisms 5 can be determined according to the equipment and suspended load arranged on the well sinking platform. The track climbing mechanism 5 can be set to three, four or five pairs. As a preferred option, the anti-slip bracing mechanism 6 can be set to three or four sets. In this way, the entire device can be effectively prevented from falling and causing a safety accident. It can provide reliable safety protection for track climbing failure and the safety of the well sinking platform when it is fixed in the well.

[0033] In order to enable timely detection of stall and descent, and to automatically take locking and positioning measures in real time, an acceleration sensor and a controller are also included; the acceleration sensor is installed on the well sinking platform 1, and the controller is connected to the acceleration sensor and the hydraulic pump station respectively.

[0034] As a preferred option, the support plate 4, the upper working plate 22, and the lower working plate 23 can all adopt a structural beam structure similar to that of the track support plate 2 to meet the lifting and lowering needs of well drilling equipment such as lifting platforms, mini excavators, and umbrella drills.

[0035] In this invention, the main body of the well-drilling platform is composed of track support plates and support shoe support plates spaced vertically. This facilitates the use of the track support plates as the mounting base for the track climbing mechanism and the support shoe support plates as the mounting base for the anti-slip tensioning mechanism. For the anti-slip tensioning mechanism, a raised support is fixedly installed on the support shoe support plate on the inner side, providing a high-level mounting base for the inner guide support plate. A guide groove is formed along the outer end of the inner guide support plate, providing a guide track for the outer guide connecting plate installed inside the anti-slip support shoe. Based on this, multiple inner guide support plates are fixedly installed on the outer side of the upper end of the raised support, and multiple outer guide connecting plates are fixedly installed on the inner side of the anti-slip support shoe. Multiple support shoe cylinders, inclined and mounted on the support shoe support plate, are hinged to the lower ends of the multiple outer guide connecting plates. The extension of the piston rods of these cylinders pushes the outer guide connecting plates to slide quickly outwards along the guide grooves on the inner guide support plates. This allows the anti-slip support shoe to act stably and efficiently against the well wall. Simultaneously, the inner guide support plates provide stable support for the anti-slip support shoe, which is tightened against the well wall. Through the combined action of the inner guide support plates and the support shoe cylinders, the anti-slip support shoe can act stably against the well wall, providing significant friction. This mechanism allows for rapid radial locking to prevent the drilling platform from stalling and sliding down in the event of slippage during lifting or lowering. For the tracked climbing mechanism, a support bracket is installed on the outer circumference of the track support plate, which provides a movable connection support base for the inner end of the swing connecting plate and the cylinder end of the track cylinder. The outer end of the vehicle body connecting frame is fixedly connected to the chassis of the tracked trolley, and the outer end of the swing connecting plate and the piston rod end of the track cylinder are connected to the inner end of the vehicle body connecting frame. This allows the extension of the track cylinder piston rod to drive the tracked trolley towards the well wall, achieving a state of contact with the well wall. Based on this, on the one hand, during the suspension and fixing process, multiple tracked climbing mechanisms can be in a state of circumferential contact with the well wall, cooperating with multiple anti-slip clamping mechanisms that circumferentially support the well wall to provide reliable suspension and fixing support force, thus achieving the suspension and fixing of the well sinking platform inside the well. On the other hand, by driving the tracked trolley with a hydraulic motor, the hydraulic motor can be used to drive the tracked trolley to move continuously during the climbing process, thereby significantly improving the descent or ascent efficiency and effectively meeting the needs of efficient and safe lifting and lowering of the well sinking platform.This invention utilizes a hydraulic motor to drive a tracked trolley for continuous movement, enabling continuous lifting and lowering of the well sinking platform within the well via multiple pairs of tracked climbing mechanisms. Simultaneously, it applies radial pressure to the anti-slip clamping mechanism using hydraulic cylinders for support shoes. This provides a safety interlocking function in case of slippage during lifting, effectively preventing the well sinking platform from slipping and sliding down. Furthermore, the invention uses track cylinders to apply radial pressure to the tracked climbing mechanism, ensuring the tracks on the tracked trolley adhere tightly to the well wall, thus guaranteeing climbing efficiency. It also facilitates the suspension and fixation of the well sinking platform within the well via multiple pairs of tracked climbing mechanisms and multiple anti-slip clamping mechanisms, providing a reliable solution to the problems of difficult suspension and low lifting efficiency of well sinking platforms in ultra-deep vertical shafts.

[0036] This system features a compact structure, high stability, strong climbing drive, ideal radial positioning effect, and autonomous continuous lifting capability. It achieves long-distance descent of the well sinking platform inside the well through hydraulically driven crawler movement, revolutionizing the traditional wire rope suspension lifting method of the well sinking platform. It can effectively adapt to the frequent lifting and rapid continuous lifting requirements faced by the well sinking platform due to process changes. At the same time, it can effectively ensure the safety of well sinking operations inside the well and effectively meet the current needs of well construction.

[0037] This invention also provides a method for using an ultra-deep vertical shaft tracked drilling platform system, which includes the following steps: Step 1: At the wellhead location, use the suspension system to hoist and assemble the ultra-deep vertical shaft crawler sinking platform system via the stabilizing rope 34. Step 2: When the wellbore enters the normal construction cycle and the sinking platform 1 reaches the predetermined construction position, the multiple anti-slip support mechanisms 6 simultaneously control the extension of multiple support shoe cylinders 7 to a set length, driving multiple anti-slip support shoes 8 to support the well wall 35 in the circumferential direction. At the same time, the multiple track cylinders 19 in multiple track climbing mechanisms 5 are controlled to extend to a set length, driving the tracks on multiple track carriages 18 to press tightly against the well wall 35 in the circumferential direction. The friction between the multiple anti-slip support shoes 8 and the tracks on the multiple track carriages 18 and the well wall 35 is used to suspend and fix the sinking platform 1 in the predetermined construction position inside the well. After the sinking platform 1 is fixed in position, the stabilizing rope 34 is tightened and the required tension is maintained. Step 3: After completing the construction at the previously predetermined construction position, simultaneously control the multiple anti-slip support mechanisms 6 to retract the multiple support shoe cylinders 7 to a set length, so that the multiple anti-slip support shoes 8 are spaced apart from the well wall 35. At the same time, while keeping the tracks of the multiple tracked trolleys 18 in close contact with the well wall 35, simultaneously control the multiple hydraulic motors in the multiple tracked climbing mechanisms 5 to start working. When it is necessary to move the sinking platform 1 downward, drive the multiple tracked trolleys 18 to move downward along the well wall 34. At the same time, during the downward movement of the sinking platform 1, simultaneously lower the stabilizing rope 34. When it is necessary to move the sinking platform 1 upward, drive the multiple tracked trolleys 18 to climb upward along the well wall 34. At the same time, during the upward movement of the sinking platform 1, simultaneously raise the stabilizing rope 34. Step 4: Upon reaching the next predetermined construction position, control multiple hydraulic motors to stop working. Simultaneously, control multiple support shoe cylinders 7 in multiple anti-slip tensioning mechanisms 6 to extend to a set length, driving multiple anti-slip support shoes 8 to tighten the well wall 35 in the circumferential direction. At the same time, control multiple track cylinders 19 in multiple track climbing mechanisms 5 to extend to a set length, driving the tracks on multiple track carriages 18 to press tightly against the well wall 35 in the circumferential direction. Utilize the friction between the multiple anti-slip support shoes 8 and the tracks on the multiple track carriages 18 and the well wall 35 to fix the drilling platform 1 at the predetermined construction position inside the well. After the drilling platform 1 is fixed in position, tighten the stabilizing rope 34 and maintain the required tension. Step 5: Repeat steps 3 and 4 multiple times until construction is completed at all designated locations.

[0038] In order to automatically and promptly take safety measures such as positioning and locking in case of stalling and sliding during the lifting process, in steps three and five, the acceleration signal of the well sinking platform 1 is collected in real time by the acceleration sensor. The controller determines whether stalling and sliding has occurred based on the change of the acceleration signal. When stalling and sliding occurs, the controller controls the hydraulic pump station 26 to operate, and synchronously drives multiple support shoe cylinders 7 in multiple anti-slip support mechanisms 6 to extend to a set length, and drives multiple anti-slip support shoes 8 to support the well wall 35 in the circumferential direction, so as to achieve rapid locking and positioning at the current height position.

[0039] This invention provides a method for using a tracked drilling platform system for ultra-deep vertical shafts. It employs multiple anti-slip bracing mechanisms in conjunction with multiple tracked climbing mechanisms to achieve suspended fixation of the drilling platform within the shaft, effectively ensuring the reliability of the platform's positioning. Simultaneously, it significantly reduces reliance on traditional suspension wire ropes and vehicle tension. Furthermore, the use of multiple tracked climbing mechanisms enables continuous lifting, greatly improving lifting efficiency and effectively adapting to the high-frequency lifting requirements within the shaft. This solves the problem of the low lifting efficiency of traditional hydraulic cylinder stepping methods, which cannot meet the needs of rapid vertical shaft construction.

[0040] This method enables continuous climbing and lowering of the well sinking platform, improving lifting efficiency and enabling reliable suspension and fixation at any construction position inside the well, thus solving the problem of suspending the well sinking platform in ultra-deep vertical shaft construction.

Claims

1. A crawler-type shaft sinking platform system for ultra-deep vertical shafts, comprising a shaft sinking platform (1), characterized in that, It also includes a track climbing mechanism (5) and an anti-slip tensioning mechanism (6); the well sinking platform (1) includes a track support plate (2) and a support shoe support plate (4), the support shoe support plate (4) being coaxially arranged below the track support plate (2); the well sinking platform (1) is provided with multiple pairs of track mounting spaces (12) and one or more pairs of support shoe mounting spaces (11) along the circumferential direction; each pair of track mounting spaces (12) and each pair of support shoe mounting spaces (11) are relatively distributed at both ends of the well sinking platform (1) in the radial direction; Multiple track climbing mechanisms (5) are respectively arranged in multiple track mounting spaces (12); the track climbing mechanism (5) includes a support base (17), a track trolley (18), a vehicle body connecting frame (20), a track cylinder (19), and a swing connecting plate (21); the support base (17) is vertically fixed on the track support plate (2); the track trolley (18) is vertically arranged on the outside of the support base (17), and its internal drive mechanism The motor is a hydraulic motor; the vehicle body connecting frame (20) is set between the support support (17) and the tracked trolley (18), and one of its outer ends is fixedly connected to the chassis of the tracked trolley (18); the two ends of the track cylinder (19) are respectively hinged to the lower end of the support support (17) and one end of the inner side of the vehicle body connecting frame (20); the two ends of the swing connecting plate (21) are respectively hinged to the upper end of the support support (17) and one end of the inner side of the vehicle body connecting frame (20); One or more pairs of anti-slip tensioning mechanisms (6) are respectively set in one or more pairs of support shoe installation spaces (11); the anti-slip tensioning mechanism (6) includes two anti-slip tensioning units distributed sequentially in the circumferential direction, the anti-slip tensioning unit includes a guide support assembly (15) and a telescopic support shoe assembly (16); the guide support assembly (15) includes a raised support (9) and an inner guide support plate (13), the raised support (9) is located on the outside of the track support plate (2), it has an arc structure, and its lower end is fixedly connected to the upper end surface of the support shoe support plate (4); multiple inner guide support plates (13) are evenly distributed in the circumferential direction on the outer arc surface of the raised support (9), the length direction of the inner guide support plate (13) extends in the radial direction, its inner end edge is fixedly connected to the upper end of the raised support (9), its outer end edge is a sloping structure with the outer side higher than the inner side, and the center of its outer end edge is provided with an outer high inner side. The guide groove (14) extends with a low inclination; the telescopic support shoe assembly (16) includes an anti-slip support shoe (8), an outer guide connecting plate (10) and a support shoe cylinder (7); the anti-slip support shoe (8) has an arc-shaped plate structure and is correspondingly set on the outer side of the upper end of the raised support (9); multiple outer guide connecting plates (10) are distributed one-to-one with multiple inner guide support plates (13), the outer end of the outer guide connecting plate (10) is fixedly connected to the inner arc surface of the anti-slip support shoe (8), its inner end is a sloping structure with the outer side higher than the inner side, and its inner end is slidably inserted into the guide groove (14); multiple support shoe cylinders (7) are correspondingly set below multiple outer guide connecting plates (10), the support shoe cylinder (7) is inclined with the outer side higher than the inner side, the end of its cylinder is fixedly installed on the upper end surface of the support shoe support plate (4), and the end of its piston rod is hinged to the lower end of the outer guide connecting plate (10).

2. The ultra-deep vertical shaft crawler-type well sinking platform system according to claim 1, characterized in that, It also includes a hydraulic pump station (26); the hydraulic pump station (26) is installed on the track support plate (2) and is connected to the hydraulic motors on the support shoe cylinder (7), track cylinder (19) and track trolley (18) respectively through multiple high-pressure oil pipes.

3. A crawler-type shaft sinking platform system for ultra-deep vertical shafts according to claim 1 or 2, characterized in that, It also includes an upper working plate (22); the upper working plate (22) is located below the support plate (4) and is fixedly connected to the support plate (4) by multiple upper connecting columns (24).

4. The ultra-deep vertical shaft crawler-type well sinking platform system according to claim 3, characterized in that, It also includes a lower working plate (23); the lower working plate (23) is located below the upper working plate (22) and is fixedly connected to the upper working plate (22) by multiple lower connecting columns (25).

5. The ultra-deep vertical shaft crawler-type well sinking platform system according to claim 4, characterized in that, The track support plate (2) includes a ring beam (27) and an internal support frame (32); the internal support frame (32) is fixedly connected to the inside of the ring beam (27), and multiple suspension points (33) are provided on the internal support frame (32).

6. The ultra-deep vertical shaft crawler-type well sinking platform system according to claim 5, characterized in that, The internal support frame (32) includes a main crossbeam (28), longitudinal beams (29), auxiliary crossbeam one (30), and auxiliary crossbeam two (31); two main crossbeams (28) are arranged opposite each other inside the ring beam (27), and the two ends of each main crossbeam (28) are fixedly connected to the inner walls of both sides of the ring beam (27); two longitudinal beams (29) are arranged alternately between the two main crossbeams (28), and the two ends of each longitudinal beam (29) are fixedly connected to the two main crossbeams (28); multiple auxiliary crossbeams (31) 30) The auxiliary beams are distributed between the two main beams (28) at intervals, and the left end of each auxiliary beam (3) is fixedly connected to the inner wall of the ring beam (27), and the right end of each auxiliary beam (3) is fixedly connected to the left longitudinal beam (29); multiple auxiliary beams (31) are distributed between the two main beams (28) at intervals, and the left end of each auxiliary beam (31) is fixedly connected to the right longitudinal beam (29), and the right end of each auxiliary beam (31) is fixedly connected to the inner wall of the ring beam (27).

7. The ultra-deep vertical shaft crawler-type well sinking platform system according to claim 6, characterized in that, The well drilling platform (1) also includes multiple short columns (3) and a circular cover plate (36); the multiple short columns (3) are arranged between the track support plate (2) and the support shoe support plate (4), and the upper and lower ends of the multiple short columns (3) are fixedly connected to the track support plate (2) and the support shoe support plate (4) respectively; the outer diameter of the circular cover plate (36) is larger than the outer diameter of the ring beam (27), and it is coaxially fixedly connected to the upper end of the ring beam (27). The circular cover plate (36) has two support shoe installation notches in the part corresponding to the two support shoe installation spaces (11), and multiple track installation notches in the part corresponding to multiple pairs of track installation spaces (12).

8. The ultra-deep vertical shaft crawler-type well sinking platform system according to claim 4, characterized in that, It also includes an acceleration sensor and a controller; the acceleration sensor is mounted on the well drilling platform (1), and the controller is connected to the acceleration sensor and the hydraulic pump station respectively.

9. A method of using an ultra-deep vertical shaft tracked drilling platform system, comprising the ultra-deep vertical shaft tracked drilling platform system as described in any one of claims 1 to 8, characterized in that, Includes the following steps: Step 1: At the wellhead location, use the suspension system to hoist and complete the assembly of the ultra-deep vertical shaft crawler sinking platform system via the stabilizing rope (34); Step 2: When the wellbore enters the normal construction cycle and the well sinking platform (1) reaches the predetermined construction position, the multiple support shoe cylinders (7) in the multiple anti-slip tensioning mechanisms (6) are simultaneously controlled to extend to a set length, driving the multiple anti-slip support shoes (8) to tighten the well wall (35) in the circumferential direction. At the same time, the multiple track cylinders (19) in the multiple track climbing mechanisms (5) are controlled to extend to a set length, driving the tracks on the multiple track carriages (18) to press against the well wall (35) in the circumferential direction. The friction between the multiple anti-slip support shoes (8) and the tracks on the multiple track carriages (18) and the well wall (35) is used to suspend and fix the well sinking platform (1) in the predetermined construction position in the well. After the well sinking platform (1) is fixed in position, the stabilizing rope (34) is tightened and the required tension is maintained. Step 3: After completing the construction at the previous predetermined construction position, simultaneously control the multiple anti-slip support mechanisms (6) to retract the multiple support shoe cylinders (7) to a set length, so that the multiple anti-slip support shoes (8) are in a gap distribution state with the well wall (35). At the same time, while keeping the tracks on the multiple tracked trolleys (18) in close contact with the well wall (35), simultaneously control the multiple hydraulic motors in the multiple tracked climbing mechanisms (5) to start working. When it is necessary to move the sinking platform (1) downward, drive the multiple tracked trolleys (18) to move downward along the well wall (34). At the same time, during the downward movement of the sinking platform (1), simultaneously lower the stabilizing rope (34). When it is necessary to move the sinking platform (1) upward, drive the multiple tracked trolleys (18) to climb upward along the well wall (34). At the same time, during the upward movement of the sinking platform (1), simultaneously raise the stabilizing rope (34). Step 4: Upon reaching the next predetermined construction position, control multiple hydraulic motors to stop working. Simultaneously, control multiple anti-slip support mechanisms (6) to extend multiple support shoe cylinders (7) to a set length, driving multiple anti-slip support shoes (8) to support the well wall (35) in the circumferential direction. At the same time, control multiple track cylinders (19) in multiple track climbing mechanisms (5) to extend to a set length, driving multiple track carriages (18) to press the tracks against the well wall (35) in the circumferential direction. Utilize the friction between the multiple anti-slip support shoes (8) and the tracks on the multiple track carriages (18) and the well wall (35) to fix the drilling platform (1) at the predetermined construction position inside the well. After the drilling platform (1) is fixed in position, tighten the stabilizing rope (34) and maintain the required tension. Step 5: Repeat steps 3 and 4 multiple times until construction is completed at all designated locations.

10. The method of using a crawler-type shaft sinking platform system for ultra-deep vertical shafts according to claim 9, characterized in that, In steps three and five, the acceleration signal of the drilling platform (1) is collected in real time using an acceleration sensor. The controller determines whether a stall or slide occurs based on the change in the acceleration signal. When a stall or slide occurs, the controller controls the hydraulic pump station (26) to operate, and synchronously drives multiple anti-slip support mechanisms (6) to extend multiple support shoe cylinders (7) to a set length, and drives multiple anti-slip support shoes (8) to support the well wall (35) in the circumferential direction, so as to achieve rapid locking and positioning of the current height position.

Images