A mobile heavy lift device

Abstract

This invention belongs to the field of heavy-duty lifting technology, specifically relating to a mobile heavy-duty lifting device. It includes a connecting frame and a wall-building device located beneath the connecting frame. Lifting devices are located on both sides of the connecting frame, and a moving device is located beneath each lifting device. A driving device is located on one side of each moving device. A clamping device is provided on each lifting device. This invention effectively limits horizontal deviation of the equipment through the stable cooperation between the moving wheels and the rails, combined with a mechanical limiting structure where the first guide wheels on both sides are tightly pressed against the sides of the rails. The fixed transmission ratio characteristic of the gear and rack meshing transmission ensures precise movement of the equipment along the rails with high positioning accuracy, solving the problems of movement deviation and large positional deviation in existing equipment, and improving operational accuracy.

Description

Technical Field

[0001] This invention belongs to the field of heavy-duty lifting technology, specifically relating to a mobile heavy-duty lifting device. Background Technology

[0002] In heavy-duty operations, the accuracy of mobile lifting equipment's movement, positioning precision, and operational stability directly determine operational efficiency and safety. Existing technologies suffer from several shortcomings: during movement, deviation easily occurs when the steel wheels and rails engage, and the lack of a reliable guiding structure leads to significant deviations in the equipment's position; the drive system primarily uses direct-drive wheel sets, resulting in low power transmission efficiency and insufficient positioning accuracy; the fixing method for the lifting frame is relatively simple, relying mostly on single-point or a few-point connections, and lacks a closed-loop process of pre-positioning-fitting-locking, leading to poor lifting frame stability and susceptibility to swaying or loosening under heavy loads, resulting in significant equipment vibration and high costs. Therefore, there is an urgent need to optimize the equipment's movement guidance, drive transmission, and lifting positioning structure to address these technical pain points. Summary of the Invention

[0003] In view of the above-mentioned shortcomings in the prior art, the present invention provides a mobile heavy-duty lifting device to solve the problems in the background art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A mobile heavy-duty lifting device includes a connecting frame and a wall-building device on the lower side of the connecting frame. Lifting devices are provided on both sides of the connecting frame, a moving device is provided on the lower side of the lifting device, a driving device is provided on one side of the moving device, and a clamping device is provided on the lifting device.

[0006] Furthermore, the moving device includes a rail base plate, a rail on the rail base plate, limiting plates at both ends of the rail, a buffer post on one side of the limiting plate, a moving frame on one side of the buffer post, moving wheel axles on both sides of the moving frame, moving wheels on the moving wheel axles, a fixing block on one side of the moving wheel, and a first guide wheel on the fixing block. The top of the rail is connected to the moving wheel.

[0007] Furthermore, the rail base plate is fixed to the ground, and a pad is provided between the two rail base plates. There are multiple rails, and each rail has a limiting plate at both ends. There are multiple moving wheels, and a bushing is provided between two moving wheels. The first guide wheel is rotatably connected to the shaft, the shaft is connected to the fixed block, and the first guide wheel is connected to the side of the rail.

[0008] Furthermore, the lifting device includes a support column fixedly connected to the movable frame, a lifting frame on the support column, a chain locking assembly on the lifting frame, a counterweight frame on the upper side of the chain locking assembly, a counterweight inside the counterweight frame, a lifting frame at the top of the support column, a first rotating shaft on the lifting frame, a first sprocket at one end of the first rotating shaft, a second sprocket at the other end, a second rotating shaft on one side of the second sprocket, a third sprocket on the second rotating shaft, the third sprocket being connected to a sixth sprocket via a chain, a fourth sprocket on one side of the sixth sprocket, a fifth sprocket on the other side of the sixth sprocket, the fifth sprocket being mounted on a drive rotating shaft, and the drive rotating shaft being connected to a lifting motor.

[0009] Furthermore, a second guide wheel is fixedly connected to the lifting frame and is connected to the side of the support column; a third guide wheel is fixedly connected to the counterweight frame and is connected to the side of the support column; the counterweight frame is provided with multiple chain locking components; and the support column is provided with a support module.

[0010] Furthermore, the clamping device includes a second cylinder connected to the lifting frame. The second cylinder is provided with an mounting cylinder, and a positioning column is provided inside the mounting cylinder. A cylinder mounting plate is provided on the lower side of the positioning column. A first cylinder is provided on the cylinder mounting plate. A clamping arm is provided on the first cylinder. The clamping arm is provided with anti-slip texture.

[0011] Furthermore, the mounting cylinder penetrates the lifting frame, and is slidably connected to the positioning column inside the mounting cylinder. The positioning column is connected to the piston rod of the second cylinder, and the cylinder mounting plate is fixedly connected to the lifting frame.

[0012] Furthermore, the driving device includes a motor plate connected to the movable frame, a drive motor is provided on the motor plate, the output shaft of the drive motor is connected to a gear, the gear meshes with a rack, the rack is mounted on a rack plate, a fixing plate is provided on the lower side of the rack plate, and a limit switch plate is provided on one side of the rack plate.

[0013] Furthermore, the limit switch plate is disposed at both ends of the rack, the limit switch plate is provided with limit switch device, and the fixing plate is fixedly connected to the ground.

[0014] Furthermore, the lifting device, moving device, driving device, and clamping device are all electrically connected to the central controller.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Through the stable cooperation between the moving wheels and the rails, coupled with the mechanical limiting structure where the first guide wheels on both sides are in close contact with the side of the rails, the horizontal deviation of the equipment is effectively limited; the fixed transmission ratio characteristics of the gear and rack meshing transmission ensure that the equipment moves precisely along the rails with high positioning accuracy, solving the problems of movement deviation and large positional deviation of existing equipment, and improving the accuracy of operation;

[0017] 2. Through a closed-loop process of pre-lifting, positioning, bonding, and locking, precise positioning is achieved by mechanical bonding between the positioning column and the support module, and then the clamping arm locks it in place, which greatly reduces the risk of shaking under heavy load; the core components are mature and common gear racks, cylinders, etc., eliminating the need for expensive precision parts, which significantly reduces manufacturing and maintenance costs.

[0018] 3. The multi-sprocket drive system, combined with a counterweight balance design, reduces the load on the lifting motor and ensures uniform and efficient power transmission. It also features multiple protection structures, including chain locking, limit switches, and buffer columns. Automated collaborative operation reduces manual intervention, improving the stability of heavy-duty operations and effectively avoiding safety hazards such as overtravel and rigid collisions, making it suitable for long-term heavy-duty operation needs. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a mobile heavy-duty lifting device according to the present invention;

[0020] Figure 2 A three-dimensional structural diagram of the left side of the lifting device;

[0021] Figure 3 A schematic diagram of the cross-sectional structure on the left side of the lifting device;

[0022] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0023] Figure 5 This is a front view of the right side of the lifting device;

[0024] Figure 6 This is a three-dimensional structural diagram of the mobile device;

[0025] Figure 7 This is a side view of the mobile device;

[0026] The reference numerals in the accompanying drawings include: 1. Moving device; 11. Moving frame; 12. Moving wheel axle; 121. Bushing; 13. Moving wheel; 14. Fixing block; 15. First guide wheel; 16. Rail; 17. Buffer column; 18. Limiting plate; 19. Rail base plate; 191. Pad plate; 2. Lifting device; 21. Lifting frame; 211. Second guide wheel; 22. Chain locking assembly; 23. Counterweight; 24. Counterweight frame; 241. Third guide wheel; 25. First rotating shaft; 251. Drive rotating shaft; 252. Lifting motor; 26. First sprocket; 2 61. Fourth sprocket; 27. Second sprocket; 271. Fifth sprocket; 28. Third sprocket; 281. Sixth sprocket; 282. Second rotating shaft; 29. ​​Support column; 291. Support module; 292. Lifting frame; 3. Connecting frame; 4. Clamping device; 41. First cylinder; 42. Cylinder mounting plate; 43. Clamping arm; 44. Second cylinder; 45. Mounting cylinder; 46. Positioning column; 5. Drive device; 51. Fixing plate; 52. Drive motor; 53. Gear; 54. Motor plate; 55. Rack plate; 56. Rack; 57. Limit switch plate; 6. Bricklaying device. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this application. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0029] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0030] In the description of this invention, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating a connection between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] Example 1:

[0032] like Figure 1-7 As shown, the present invention provides a mobile heavy-duty lifting device, including a connecting frame 3 and a wall-building device 6 provided on the lower side of the connecting frame 3, lifting devices 2 provided on both sides of the connecting frame 3, a moving device 1 provided on the lower side of the lifting device 2, a driving device 5 provided on one side of the moving device 1, and a clamping device 4 provided on the lifting device 2.

[0033] The moving device 1 includes a rail base plate 19, a rail 16 on the rail base plate 19, a limiting plate 18 at both ends of the rail 16, a buffer post 17 on one side of the limiting plate 18, a moving frame 11 on one side of the buffer post 17, moving wheel axles 12 on both sides of the moving frame 11, moving wheels 13 on the moving wheel axles 12, a fixing block 14 on one side of the moving wheel 13, a first guide wheel 15 on the fixing block 14, and the top of the rail 16 is connected to the moving wheel 13.

[0034] The rail base plate 19 is fixed on the ground. A pad 191 is provided between two rail base plates 19. There are multiple rails 16. Each rail 16 has a limiting plate 18 at both ends. There are multiple moving wheels 13. A bushing 121 is provided between two moving wheels 13. The first guide wheel 15 is rotatably connected to the shaft. The shaft is connected to the fixed block 14. The first guide wheel 15 is connected to the side of the rail 16.

[0035] Specifically, the moving device 1 is used to achieve smooth movement and prevent deviation of the equipment, with a simple structure and high reliability. The rail base plate 19 is evenly fixed to the ground with expansion bolts, providing stable support for the rails 16; a fixed pad 191 is laid between the two rail base plates 19, which can absorb vibration during equipment movement and improve the stability of movement. There are multiple rails 16 arranged in parallel on the rail base plate 19, and each rail 16 has a limit plate 18 welded to both ends to limit the movement stroke of the moving frame 11; a buffer column 17 is glued to one side of the limit plate 18. The buffer column 17 is made of polyurethane and can absorb the impact force of collision to avoid rigid collision damage to the parts. The moving frame 11 is a rectangular welded frame, and moving wheels 13 are installed on both sides through moving wheel axles 12. The moving wheels 13 roll with the top of the rails 16 and bear the entire weight of the equipment; a bushing 121 is provided between the two moving wheels 13 to ensure that the distance between the moving wheels 13 is fixed. A first guide wheel 15 is installed on a fixed block 14 on one side of the moving wheel 13. The first guide wheel 15 fits tightly against the side of the rail 16, and the horizontal deviation of the equipment is directly restricted by the mechanical structure, effectively preventing the equipment from deviating during movement.

[0036] The lifting device 2 includes a support column 29 fixedly connected to the movable frame 11. A lifting frame 21 is provided on the support column 29. A chain locking assembly 22 is provided on the lifting frame 21. A counterweight frame 24 is provided on the upper side of the chain locking assembly 22. A counterweight 23 is provided inside the counterweight frame 24. A lifting frame 292 is provided at the top of the support column 29. A first rotating shaft 25 is provided on the lifting frame 292. A first sprocket 26 is provided at one end of the first rotating shaft 25, and a second sprocket 27 is provided at the other end. A second rotating shaft 282 is provided on one side of the second sprocket 27. A third sprocket 28 is provided on the second rotating shaft 282. The third sprocket 28 is connected to a sixth sprocket 281 via a chain. A fourth sprocket 261 is provided on one side of the sixth sprocket 281, and a fifth sprocket 271 is provided on the other side of the sixth sprocket 281. The fifth sprocket 271 is mounted on a drive rotating shaft 251, which is connected to a lifting motor 252. Specifically, the lifting motor 252 is mounted on the lifting frame 292 of the support column 29 on the other side; the fourth sprocket 261, the sixth sprocket 281, and the fifth sprocket 271 are all mounted on the drive shaft 251.

[0037] A second guide wheel 211 is fixedly connected to the lifting frame 21, and the second guide wheel 211 is connected to the side of the support column 29. A third guide wheel 241 is fixedly connected to the counterweight frame 24, and the third guide wheel 241 is connected to the side of the support column 29. The counterweight frame 24 is provided with multiple chain locking components, and the support column 29 is provided with a support module 291.

[0038] Specifically, the lifting device 2 is used to achieve heavy-load lifting and lowering, and works with the clamping device to achieve stable positioning. Four support columns 29 are vertically fixed to the movable frame 11, arranged in a rectangular pattern to ensure support stability. Support modules 291 are provided on each support column 29, with multiple modules 291 arranged symmetrically among the support columns, serving as reference components for positioning and clamping. The lifting frame 21 is fitted onto the outside of the support columns 29, and a second guide wheel 211 is fixedly connected to it. The second guide wheel 211 rolls with the side of the support column 29 to ensure smooth lifting and lowering of the lifting frame 21 without jamming. A chain locking assembly 22 is installed on the lifting frame 21 to lock the lifting chain and prevent accidental loosening. A counterweight frame 24 is provided on the upper side of the chain locking assembly 22, filled with counterweights 23. The counterweight weight is 60% to 80% of the lifting load, used to balance the lifting weight. A third guide wheel 241 is fixedly connected to the counterweight frame 24. The third guide wheel 241 rolls with the side of the support column 29 to ensure smooth lifting and lowering of the counterweight frame 24. A lifting frame 292 is provided at the top of the support column 29. The first rotating shaft 25 and the second rotating shaft 282 are installed on the lifting frame 292 of the two support columns on the left. The active rotating shaft 251 and the lifting motor 252 are installed on the lifting frame 292 of the two support columns on the right. Each rotating shaft is provided with a corresponding sprocket to form a multi-sprocket transmission system. The active rotating shaft 251 is connected to the lifting motor 252 and drives the lifting frame 21 and the counterweight frame 24 to lift and lower synchronously through the chain.

[0039] The clamping device 4 includes a second cylinder 44 connected to the lifting frame 21. The second cylinder 44 has a mounting cylinder 45, inside which is a positioning post 46. A cylinder mounting plate 42 is located below the positioning post 46. A first cylinder 41 is mounted on the cylinder mounting plate 42, and a clamping arm 43 is mounted on the first cylinder 41. The clamping arm 43 has anti-slip textures. The mounting cylinder 45 penetrates the lifting frame 21 and is slidably connected to the positioning post 46. The positioning post 46 is connected to the piston rod of the second cylinder 44. The cylinder mounting plate 42 is fixedly connected to the lifting frame 21.

[0040] Specifically, the clamping device 4 is used to achieve precise positioning and stable fixation of the lifting frame 21. It has a simple structure and reliable locking. The cylinder mounting plate 42 is fixed to the lifting frame 21, and a first cylinder 41 is mounted on it. The piston rod of the first cylinder 41 is connected to the clamping arm 43, driving the clamping arm 43 to open and close. The inner side of the clamping arm 43 has serrated anti-slip textures to increase clamping friction and prevent loosening under heavy loads. The second cylinder 44 is installed inside the top square steel of the lifting frame 21. Its piston rod is fixedly connected to the positioning post 46. The positioning post 46 passes through the mounting cylinder 45, which penetrates the lifting frame 21. The positioning post 46 and the mounting cylinder 45 slide together to ensure smooth extension and retraction of the positioning post 46. The bottom end of the positioning post 46 has an arc-shaped positioning head that matches the support module 291, improving positioning and fitting accuracy.

[0041] The drive unit 5 includes a motor plate 54 connected to the movable frame 11. A drive motor 52 is mounted on the motor plate 54. The output shaft of the drive motor 52 is connected to a gear 53. The gear 53 meshes with a rack 56. The rack 56 is mounted on a rack plate 55. A fixing plate 51 is provided on the lower side of the rack plate 55. A limit switch plate 57 is provided on one side of the rack plate 55. The limit switch plate 57 is located at both ends of the rack 56 and has limit switches. The fixing plate 51 is fixedly connected to the ground.

[0042] Specifically, the equipment body rests on the rails, with the rails bearing its entire weight. The rack is solely used to drive the equipment's movement, and the drive unit 5 provides precise power for the equipment's movement. This power transmission is efficient and cost-effective. The fixed plate 51 is secured to the ground foundation with expansion bolts, and the rack plate 55 is fixed to it. The rack 56 is fixedly mounted on the rack plate 55. The motor plate 54 is fixed to one side of the moving frame 11, and the drive motor 52 is mounted on it. The output shaft of the drive motor 52 is fixedly connected to the gear 53, which meshes with the rack 56 for transmission. Utilizing the fixed transmission ratio of the rack and pinion, precise movement of the equipment along the rails 16 can be achieved without complex control algorithms, resulting in high positioning accuracy. Furthermore, the rack and pinion are mature and universal components, leading to low procurement and maintenance costs. Limit switches are installed on the limit switch plates 57 at both ends of the rack 56. When the equipment reaches the end of its travel, the limit switches are triggered, stopping the drive motor 52 and providing travel limit protection.

[0043] The lifting device 2, moving device 1, driving device 5, and clamping device 4 are all electrically connected to the central controller. Specifically, the central controller is a PLC controller that can receive signals from position sensors and pressure sensors to achieve automated and coordinated control of each device; it also has a manual operation panel for manual control in special circumstances, improving the equipment's versatility and safety.

[0044] Operating principle:

[0045] The mobile positioning process involves a central controller issuing a movement command, which starts the drive motor 52. The gear 53 meshes with the rack 56, driving the mobile frame 11 to move along the rail 16. The first guide wheel 15 rolls along the side of the rail 16, limiting horizontal deviation and preventing misalignment. When the target position is reached, the drive motor 52 stops, completing precise positioning. If the limit switch is triggered, the equipment shuts down immediately. This process requires no complex control logic, has low component costs, and provides reliable positioning.

[0046] The lifting height positioning is initiated by the lifting motor 252, which drives the lifting frame 21 to rise through a multi-sprocket transmission system until it reaches a height higher than the support module 291. This height control is achieved through the variable frequency speed regulation of the lifting motor 252, eliminating the need for additional height detection equipment. The central controller controls the second cylinder 44 to extend the positioning column 46 along the mounting cylinder 45 until it reaches its full position. The lifting motor 252 then reverses, causing the lifting frame 21 to slowly descend until the positioning head at the bottom of the positioning column 46 is fully engaged with the positioning surface of the support module 291. This mechanical structure achieves precise positioning of the lifting height. Subsequently, the first cylinder 41 is activated, driving the clamping arm 43 to close. The anti-slip texture tightly engages and locks the lifting frame 21 with the support module 291, ensuring stable fixation and significantly improving stability during heavy-duty operations. The entire positioning process requires no expensive precision components, relying solely on mechanical coordination and simple control, significantly reducing equipment costs.

[0047] The central controller sets the working position, and the drive unit 5 moves the equipment along the rail 16. The first guide wheel 15 prevents deviation, and the machine stops and positions itself after reaching the target position. The lifting device 2 lifts the lifting frame 21 to a height above the support module 291. The second cylinder 44 extends the positioning column 46, and the lifting frame 21 descends, bringing the positioning column 46 into contact with the support module 291, achieving precise positioning of the lifting height. The first cylinder 41 drives the clamping arm 43 to lock the support module 291, and the chain locking assembly 22 locks the chain. The bricklaying equipment 6 performs heavy-load operations; after the operation is completed, the clamping arm 43 opens, the positioning column 46 retracts, the lifting frame 21 descends and resets, and the equipment moves to the next position or the initial position.

[0048] The above are merely embodiments of the present invention. The circuits, electronic components, and modules involved are all prior art, fully achievable by those skilled in the art, and require no further explanation. The content protected by this application does not involve improvements to the software and methods. Commonly known structures and characteristics in the solutions are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are able to access all prior art in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness of the implementation of the present invention or the practicality of the patent.

Claims

1. A mobile heavy lift hoisting apparatus characterized by: Including connecting frame (3) and connecting frame (3) lower side is equipped with wall building equipment (6), the both sides of connecting frame (3) are equipped with lifting device (2), lifting device (2) lower side is equipped with moving device (1), and one side of moving device (1) is equipped with driving device (5), lifting device (2) is equipped with clamping device (4) on it; The lifting device (2) includes a support column (29) fixedly connected with the moving frame (11), a lifting frame (21) provided on the support column (29), a chain locking assembly (22) provided on the lifting frame (21), a counterweight frame (24) provided on the upper side of the chain locking assembly (22), a counterweight (23) provided in the counterweight frame (24), a lifting frame (292) provided at the top of the support column (29), a first rotating shaft (25) provided on the lifting frame (292), a first sprocket (26) provided at one end of the first rotating shaft (25), a second sprocket (27) provided at the other end of the first rotating shaft (25), a second rotating shaft (282) provided at one side of the second sprocket (27), a third sprocket (28) provided on the second rotating shaft (282), the third sprocket (28) connected with the sixth sprocket (281) through a chain, a fourth sprocket (261) provided at one side of the sixth sprocket (281), a fifth sprocket (271) provided at the other side of the sixth sprocket (281), the fifth sprocket (271) provided on the driving rotating shaft (251), and the driving rotating shaft (251) connected with the lifting motor (252); The lifting frame (21) is fixedly connected with a second guide wheel (211), the second guide wheel (211) is connected with the side surface of the support column (29), the counterweight frame (24) is fixedly connected with a third guide wheel (241), the third guide wheel (241) is connected with the side surface of the support column (29), a plurality of chain locking assemblies are provided on the counterweight frame (24), and a support module (291) is provided on the support column (29); The clamping device (4) includes a second cylinder (44) connected with the lifting frame (21), an installation cylinder (45) provided on the second cylinder (44), a positioning column (46) provided in the installation cylinder (45), a cylinder mounting plate (42) provided on the lower side of the positioning column (46), a first cylinder (41) provided on the cylinder mounting plate (42), a clamping arm (43) provided on the first cylinder (41), and anti-skid lines provided on the clamping arm (43); The installation cylinder (45) penetrates the lifting frame (21), the installation cylinder (45) is slidingly connected with the positioning column (46) inside, the positioning column (46) is connected with the piston rod of the second cylinder (44), and the cylinder mounting plate (42) is fixedly connected on the lifting frame (21).

2. A mobile heavy lift hoisting apparatus as claimed in claim 1, characterised in that: The mobile device (1) comprises a rail base plate (19) provided with rails (16), the rails (16) are provided with limiting plates (18) at both ends, the limiting plates (18) are provided with buffer columns (17) on one side, the buffer columns (17) are provided with a mobile frame (11) on one side, the mobile frame (11) is provided with mobile wheel shafts (12) on both sides, the mobile wheel shafts (12) are provided with mobile wheels (13), the mobile wheels (13) are provided with fixed blocks (14) on one side, the fixed blocks (14) are provided with first guide wheels (15), and the rails (16) are connected with the mobile wheels (13) at the top.

3. A mobile heavy lift hoisting apparatus as claimed in claim 2, characterised in that: The rail base plate (19) is fixed on the ground, and a spacer plate (191) is arranged between the two rail base plates (19), the rails (16) are provided with a plurality of rails (16), the limiting plates (18) are arranged at both ends of each rail (16), the mobile wheels (13) are provided with a plurality of mobile wheels (13), the shaft sleeves (121) are arranged between the two mobile wheels (13), the first guide wheels (15) are rotatably connected with the shafts, the shafts are connected with the fixed blocks (14), and the first guide wheels (15) are connected with the side surfaces of the rails (16).

4. A mobile heavy lift hoisting apparatus as claimed in claim 1, characterised in that: The driving device (5) comprises a motor plate (54) connected with the mobile frame (11), the motor plate (54) is provided with a driving motor (52), the output shaft of the driving motor (52) is connected with a gear (53), the gear (53) is engaged with a rack (56), the rack (56) is installed on a rack plate (55), the lower side of the rack plate (55) is provided with a fixed plate (51), and one side of the rack plate (55) is provided with a limit switch plate (57).

5. A mobile heavy lift hoisting apparatus as claimed in claim 4, characterised in that: The limit switch plate (57) is arranged at both ends of the rack (56), the limit switch plate (57) is provided with a limit switch, and the fixed plate (51) is fixedly connected with the ground.

6. A mobile heavy lift hoisting apparatus as claimed in claim 1, characterised in that: The lifting device (2), the mobile device (1), the driving device (5) and the clamping device (4) are electrically connected with the central controller.

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