Steel wire rope anti-winding type tower crane hoisting equipment

Abstract

The invention relates to the technical field of hoisting equipment, in particular to steel wire rope anti-winding type tower crane hoisting equipment which comprises a tower crane body and a sliding trolley, an electric hoist box is fixedly connected to the lower end of the sliding trolley, an electric hoist is connected into the electric hoist box, and a steel wire rope is connected to the electric hoist in a winding mode. Limiting sleeves are arranged on the peripheries of the steel wire ropes in a sleeving mode, the limiting sleeves are fixedly connected with the steel wire ropes, stress planes are arranged on the opposite sides of the two limiting sleeves, a plurality of limiting sleeve holes which are distributed at equal intervals from top to bottom are formed in the stress planes, and sliding pistons are coaxially connected into the limiting sleeve holes in a sliding mode. The end, away from the limiting sleeve, of the sliding piston is fixedly connected with a magnet plate, two opposite magnet plates have the same magnetic pole, the limiting sleeve is connected with external air supply equipment, the axis of the sliding piston is provided with an air duct, the magnet plate is provided with an air injection hole, the air injection hole is communicated with the air duct, the air injection hole is internally and fixedly connected with a pressure valve, and practicability is high.

Description

Technical Field

[0001] The invention relates to the technical field of lifting equipment, in particular to a steel wire rope anti-winding type tower crane lifting equipment. Background Art

[0002] During the lifting and hoisting operation of the tower crane, due to the long sag section of the lifting wire rope, the lifting wire ropes are easily entangled with each other due to wind or other reasons, which may affect the lifting efficiency at the least and cause safety accidents or even heavy objects falling and causing casualties.

[0003] The Chinese patent application number CN202410560532.4 discloses a tower crane hoist wire rope anti-entanglement method and device. The present invention fastens a wire parallel to the wire rope, connects the upper end of the wire to the positive and negative poles of the DC power supply, respectively, and connects the lower end of the wire together, so that the two wires form an electrical circuit. After the DC power supply is turned on, currents with opposite current directions flow through the two wires, generating two magnetic fields with opposite magnetic field forces, forming a repulsive effect, and the shorter the distance between the two wire ropes, the greater the repulsive force generated, effectively preventing the two wire ropes from approaching each other, thereby achieving an anti-entanglement effect. Compared with the prior art, the present invention solves the winding problem of the tower crane wire rope, which is conducive to improving the working efficiency of the tower crane, and can also reduce safety accidents caused by the winding of the wire rope.

[0004] The Chinese patent application number CN202420632937.X discloses an anti-sway stabilization device for a tower crane. This application fixes two extension sleeves and a support arm together by setting a rear stabilization device. The vertical plate is located in a movable groove. When the vertical plate contacts the lifting rope, the lifting rope squeezes the vertical plate to move the vertical plate in the movable groove. Since a spring and a damper are provided at the rear end of the vertical plate, the lifting rope can be buffered and limited with the cooperation of the spring and the damper, thereby reducing the swing amplitude of the lifting rope. By providing an upper arc plate and a lower arc plate on the vertical plate, when the lifting rope contacts the vertical plate, the swing of the lifting rope will be in contact with the lower arc plate. Since the lower arc plate and the upper arc plate are both arc structures, the vertical plate can be prevented from cutting the lifting rope, thereby increasing the service life of the lifting rope. However, in actual applications, the following problems still exist, specifically: 1. Although the two ropes can be repelled to a certain extent, under the action of strong torque, the ropes will deflect, resulting in the failure of the repulsive force, causing entanglement in the other direction, and also causing the ropes to rotate, which is unsafe and ineffective to use; 2. During the process of rope descent and lifting, the two ropes cannot be effectively mechanically limited as needed, and the two ends of the limit rope are limited at the same time. When used over a long distance, the middle position will still swing and entangle; 3. The rope will wear out during use. Using it in rainy weather will cause corrosion to the wire rope, shortening the service life of the rope.

[0005] Therefore, the present invention provides a wire rope anti-winding tower crane lifting equipment to solve the above problems. Summary of the invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a wire rope anti-entanglement tower crane lifting equipment, which effectively solves the problems of rope deflection and entanglement and protects the rope.

[0007] The present invention comprises a tower crane body, a sliding trolley is slidably connected to the tower crane body, an electric hoist box is fixedly connected to the lower end of the sliding trolley, an electric hoist is connected inside the electric hoist box, and a steel wire rope is wound around the electric hoist; The outer periphery of the steel wire rope is sleeved with a limiting sleeve, the limiting sleeve is fixedly connected to the steel wire rope, the two limiting sleeves are provided with a force plane on the opposite side, the force plane is provided with a plurality of limiting sleeve holes distributed at equal intervals from top to bottom, the limiting sleeve holes are coaxially slidably connected with a sliding piston, the sliding piston is fixedly connected with a magnet plate at one end away from the limiting sleeve, the two opposite magnet plates have the same magnetic poles, and the limiting sleeve is connected to an external air supply device; The axis of the sliding piston is provided with an air passage, the magnet plate is provided with an air jet hole, the air jet hole is connected with the air passage, and a pressure valve is fixedly connected inside the air jet hole.

[0008] Preferably, the lower end of the electric hoist box is fixedly connected to a storage box, the steel wire rope runs through the storage box, a plurality of stacked limit frames are arranged inside the storage box, two symmetrically distributed rope sleeves are arranged inside the limit frame, and the rope sleeves are arranged outside the limit sleeve, so that the two steel wire ropes are limited by the rope sleeves and the limit frame to avoid the entanglement of the two steel wire ropes; A telescopic sleeve is connected between two symmetrical rope sleeves, and a spring is arranged on the outer sleeve of the telescopic sleeve. The two ends of the spring are respectively connected to the two rope sleeves. The rope sleeves are provided with limited rectangular grooves. Two symmetrically distributed limiting rods are fixedly connected to the inside of the storage box. The limiting rods are respectively arranged inside the rope sleeves on the same side. The limiting rods are used to limit the rope sleeves. The lower end of the limiting rod is inclined, so that the rope sleeve at the lower end slides toward the side close to the steel wire rope. The lower end of the storage box is fixedly connected to two symmetrically distributed limit boxes, the limit box is slidably connected to a support plate, the limit box is fixedly connected to an electric push rod connected to the support plate, the upper end of the support plate is fixedly connected to a pressure sensor, and the lower end surface of the support plate is inclined.

[0009] Preferably, sliding rails are provided on both sides of the storage box, and lifting frames are connected to the sliding rails for sliding up and down movement. The lifting frames are fixedly connected to arc-shaped pressing frames that match the rope sleeves, and the lifting frames drive the arc-shaped pressing frames to slide downward to achieve the squeezing of the limit frame. The upper ends of the lifting frames are fixedly connected with telescopic rods, the upper ends of the telescopic rods are slidably connected with storage sleeves, the storage sleeves and the telescopic rods are connected via springs, and the springs are in a compressed state.

[0010] Preferably, the upper and lower end surfaces of the limit frames are fixedly connected with a plurality of limit columns, and the limit columns at the upper and lower ends of two adjacent limit frames are in contact and fit, so that the two adjacent limit frames are in a clearance fit state.

[0011] Preferably, a circular groove is provided inside the limiting column, a circular magnet is fixedly connected inside the circular groove, and the magnetic poles of the circular magnets at the upper and lower ends of the limiting frame are opposite.

[0012] Preferably, the rope sleeve is made of magnetic material, and the magnet plate is used to adsorb the rope sleeve, thereby ensuring synchronous sliding of the magnet plate and the rope sleeve.

[0013] Preferably, the limit frame is divided into a left half frame and a right half frame, the left plate frame is provided with a limit hole, the right half frame is fixedly connected with a limit pin matching the limit hole, and the left half frame and the right half frame are connected by a bolt structure.

[0014] Preferably, a control module and an air supply pump are fixedly connected to the tower crane body, and the air supply pump and the electric push rod pressure sensor are both connected to the control module.

[0015] The present invention improves the existing tower crane lifting equipment and has the following beneficial effects: 1. The problem of repulsion between two steel wire ropes is effectively solved by setting the limit sleeve, sliding piston, magnet plate, jet hole, pressure valve and airway, thus avoiding entanglement. 2. By setting up the storage box, limit frame, rope sleeve, limit rod, limit rectangular groove, limit box, support plate and electric push rod and other structures, the problem of mechanical limit of wire rope is effectively solved to avoid the failure of magnetic repulsion caused by self-rotation of rope and the problem of short-distance limit of wire rope is solved; 3. By setting up structures such as sliding tracks, arc-shaped pressing frames, and telescopic rods, the problem of continuous squeezing of the limit frame is effectively solved to ensure that the limit frame can fall smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0017] Figure 2 It is a schematic diagram of the limiting sleeve and its connecting piece of the present invention.

[0018] Figure 3 For the present invention Figure 2 A partial enlarged schematic diagram in the middle.

[0019] Figure 4 It is a schematic diagram of the magnet plate and its connecting parts of the present invention.

[0020] Figure 5 For the present invention Figure 4 A partial enlarged schematic diagram of point B in the middle.

[0021] Figure 6 It is a schematic diagram of the internal structure of the storage box of the present invention.

[0022] Figure 7 It is a schematic diagram of the arc-shaped pressing frame and its connecting parts of the present invention.

[0023] Figure 8 It is a schematic diagram of the supporting plate structure of the present invention.

[0024] Fig. 9 The limiting frame and its connecting parts of the present invention are schematically shown in FIG. Figure 1 .

[0025] Fig.10 The limiting frame and its connecting parts of the present invention are schematically shown in FIG. Figure 2 .

[0026] Figure numerals: 1. tower crane body; 2. sliding trolley; 3. electric hoist box; 4. wire rope; 5. limiting sleeve; 6. force plane; 7. limiting sleeve hole; 8. sliding piston; 9. magnet plate; 10. air duct; 11. jet hole; 12. storage box; 13. limiting frame; 14. rope sleeve; 15. telescopic sleeve; 16. limiting rectangular groove; 17. limiting rod; 18. limiting box; 19. supporting plate; 20. electric push rod; 21. sliding track; 22. lifting frame; 23. arc pressing frame; 24. telescopic rod; 25. storage sleeve; 26. limiting column; 27. pressure sensor; 28. circular magnet; 29. ​​left half frame; 30. right half frame; 31. limiting hole; 32. limiting pin; 33. control module. DETAILED DESCRIPTION

[0027] The above and other technical contents, features and effects of the present invention are described in detail below with reference to the attached Figures 1 to 10 The detailed description of the embodiments will clearly show that the structural contents mentioned in the following embodiments are all based on the drawings in the specification.

[0028] Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

[0029] The present invention includes a tower crane body 1, and the tower crane body 1 is an existing tower crane equipment, which will not be described in detail here. A sliding trolley 2 is slidably connected to the tower crane body 1, and an electric hoist box 3 is fixedly connected to the lower end of the sliding trolley 2. The sliding of the sliding trolley 2 drives the electric hoist box 3 to slide synchronously. The electric hoist box 3 is internally connected to an electric hoist, and a steel wire rope 4 is wound around the electric hoist. The steel wire rope 4 is used to fix the hook, and the lifting of the hoisted object is achieved through the steel wire rope 4, thereby achieving lifting.

[0030] The outer periphery of the steel wire rope 4 is sleeved with a limiting sleeve 5, the limiting sleeve 5 and the steel wire rope 4 are fixedly connected, the steel wire rope 4 is extended and retracted while driving the limiting sleeve 5 to extend and retract synchronously, and the limiting sleeve 5 is used to effectively protect the steel wire rope 4, and the two limiting sleeves 5 are provided with a force plane 6 on the opposite side, and the force plane 6 is provided with a plurality of limiting sleeve holes 7 distributed at equal intervals from top to bottom, and the limiting sleeve holes 7 are coaxially slidably connected with a sliding piston 8 inside, and the sliding piston 8 is fixedly connected with a magnet plate 9 at one end away from the limiting sleeve 5, and the two opposite sides are provided with a force plane 6, and the force plane 6 is provided with a plurality of limiting sleeve holes 7 distributed at equal intervals from top to bottom, and the limiting sleeve holes 7 are coaxially slidably connected with a sliding piston 8, and the sliding piston 8 is fixedly connected with a magnet plate 9 at one end away from the limiting sleeve 5. The magnetic poles of the magnet plates 9 are the same. Since the magnetic poles of the magnet plates 9 are the same, a repulsive force is generated, thereby avoiding entanglement between the two limiting sleeves 5, so that there is a repulsive force between the two limiting sleeves 5. The limiting sleeve 5 is connected to an external air supply device, and the air supply to the limiting sleeve 5 is achieved through the air supply device, thereby achieving adjustment of the position of the sliding piston 8, and then achieving adjustment of the distance between the magnet plates 9, ensuring that the limiting sleeves 5 can effectively repel each other under the action of the two relative magnet plates 9, thereby avoiding entanglement of the wire rope 4.

[0031] In order to better enable the repulsive force between the two limit sleeves 5, an air passage 10 is opened at the axis of the sliding piston 8, and an air jet hole 11 is opened on the magnet plate 9. The air jet hole 11 is connected to the air passage 10, and a pressure valve is fixedly connected to the inside of the air jet hole 11. Under the action of the pressure valve, the sliding piston 8 first slides to the farthest end and then continuously pressurizes. The pressure valve opens and pressurizes and blows air onto the opposite force-bearing plane 6, thereby avoiding a large repulsive force between the two limit sleeves 5 and avoiding entanglement between the two limit sleeves 5.

[0032] During the specific implementation of this embodiment, the steel wire rope 4 is stretched according to actual needs, and the air supply device is used to supply air to the air duct 10. During the air supply process, the sliding piston 8 slides and drives the magnet plate 9 to slide synchronously. The two relative magnet plates 9 repel each other. At the same time, when the sliding piston 8 slides to the farthest end, the pressure valve opens, and air flows in opposite directions between the two magnet plates 9, thereby causing a reverse force to occur between the limiting sleeves 5, thereby further ensuring the repulsive force between the limiting sleeves 5 and avoiding the repulsive force between the steel wire ropes 4.

[0033] The lower end of the electric hoist box 3 is fixedly connected to a storage box 12, and the steel wire rope 4 passes through the storage box 12. A plurality of stacked limit frames 13 are arranged inside the storage box 12, and two symmetrically distributed rope loops 14 are arranged inside the limit frame 13. The rope loop 14 is sleeved on the outside of the limit sleeve 5, and the two steel wire ropes 4 are limited by the rope loop 14 and the limit frame 13 to avoid the entanglement of the two steel wire ropes 4. The multi-level limit of the limit sleeve 5 is achieved by a plurality of the limit frames 13. When the steel wire rope 4 is extended downward, a plurality of the limit frames 13 limit the limit sleeve 5 in sections to avoid the deflection or shaking of the limit sleeve 5, which causes the entanglement of the two limit strips.

[0034] A telescopic sleeve 15 is connected between the two symmetrical rope loops 14, and the outer sleeve of the telescopic sleeve 15 is provided with a spring, and the two ends of the spring are respectively connected to the two rope loops 14, and the distance between the two rope loops 14 is adjusted by the telescopic sleeve 15 and the spring, so as to clamp and release the rope loop 14 and the limiting sleeve 5, and the rope loop 14 is provided with a limited rectangular groove 16, and the storage box 12 is fixedly connected with two symmetrically distributed limiting rods 17, and the limiting rods 17 are respectively penetrated in the rope loops 14 on the same side, and the rope loop 14 is limited by the limiting rod 17. 14 is in a state of being disengaged from the limiting sleeve 5 under the limiting action of the limiting rod 17, ensuring that the limiting sleeve 5 can pass smoothly. The lower end of the limiting rod 17 is in an inclined plane, so that the rope sleeve 14 at the lower end slides toward the side close to the steel wire rope 4. Under the joint action of the inclined plane and the spring, the rope sleeve 14 slides toward the side of the limiting sleeve 5, and the rope sleeve 14 and the limiting sleeve 5 fit together. At the same time, during the sliding process of the limiting sleeve 5, the magnet block fits together with the rope sleeve 14, thereby driving the rope sleeve 14 and the limiting frame 13 of the lowest layer to slide down synchronously, and then pass through the limiting frame 13. The rope sleeve 14 limits the limiting sleeve 5 of the sliding part.

[0035] In order to support the limit frame 13 and ensure that the limit frame 13 can fall one by one, the lower end of the storage box 12 is fixedly connected to two symmetrically distributed limit boxes 18, and the limit box 18 is slidably connected to a support plate 19. The limit box 18 is fixedly connected to an electric push rod 20 connected to the support plate 19. The upper and lower ends of the support plate 19 are fixedly connected to pressure sensors 27. The lower end surface of the support plate 19 is inclined. The support plate 19 is realized by the electric push rod 20. The support plate 19 is driven by the pressure sensor 27, and the lower end of the support plate 19 is inclined, so that when the limit frame 13 slides upward, the limit frame 13 can better enter the storage box 12. At the same time, it is connected to the electric push rod 20 through the pressure sensor 27, and the electric push rod 20 is controlled by the pressure sensor 27. When the limit frame 13 is in contact with the pressure sensor 27, the support plate 19 is stored in the limit box 18, thereby ensuring that the limit frame 13 can pass smoothly.

[0036] In order to ensure that the limit frame 13 is in a continuously downwardly pressed state so that the limit frame 13 has a downward sliding force, sliding rails 21 are provided on both sides of the storage box 12, and the sliding rails 21 are internally connected with a lifting frame 22 for sliding up and down. The lifting frame 22 is fixedly connected with an arc-shaped pressing frame 23 that cooperates with the rope loop 14. The lifting frame 22 drives the arc-shaped pressing frame 23 to slide downward to achieve the squeezing of the limit frame 13.

[0037] The upper end of the lifting frame 22 is fixedly connected with a telescopic rod 24, and the upper end of the telescopic rod 24 is slidably connected with a storage sleeve 25. The storage sleeve 25 and the telescopic rod 24 are connected by a spring, and the spring is in a compressed state. The telescopic rod 24, the spring and the arc-shaped pressing frame 23 are used to squeeze the limit frame 13.

[0038] In order to better ensure that the limit frames 13 fall one by one and enable the support plate 19 to be reset in time to support the adjacent limit frames 13, the upper and lower end surfaces of the limit frames 13 are fixedly connected with a plurality of limit columns 26, and the limit columns 26 at the upper and lower ends of two adjacent limit frames 13 are in contact and fit, so that the two adjacent limit frames 13 are in a clearance fit state, ensuring that the support plate 19 can effectively support the limit frames 13, even if it is reset to the lower end of the limit frames 13, and also preventing the limit frames 13 from falling off.

[0039] In order to ensure the stacking stability between the limit frames 13 and to ensure that the limit frames 13 will not fall off, a circular groove is opened inside the limit column 26, and a circular magnet 28 is fixedly connected inside the circular groove. The magnetic poles of the circular magnet 28 at the upper and lower ends of the limit frame 13 are opposite, thereby ensuring that two adjacent limit frames 13 can be effectively adsorbed to ensure the overall stability.

[0040] The rope sleeve 14 is made of magnetic material, and the magnet plate 9 is used to adsorb the rope sleeve 14, thereby ensuring synchronous sliding of the magnet plate 9 and the rope sleeve 14, and effectively ensuring the stability of the fit between the rope sleeve 14 and the magnet plate 9.

[0041] In order to facilitate the disassembly, replacement and maintenance of the limit frame 13, the limit frame 13 is divided into a left half frame 29 and a right half frame 30. The left plate frame is provided with a limit hole 31, and the right half frame 30 is fixedly connected with a limit pin 32 that cooperates with the limit hole 31. The left half frame 29 and the right half frame 30 are connected by a bolt structure. Through the arrangement of the left half frame 29 and the right half frame 30, the limit frame 13 can be better disassembled, which is convenient for subsequent replacement and maintenance.

[0042] The tower crane body 1 is fixedly connected with a control module 33 and an air supply pump, and the air supply pump, the electric push rod 20 and the pressure sensor 27 are all connected to the control module 33, and the control module 33 is used to control the air supply pump, the electric push rod 20 and the pressure sensor 27.

[0043] When the present invention is used in practice, the steel wire rope 4 is stretched according to actual needs, and the air supply device is used to supply air to the air passage 10. During the air supply process, the sliding piston 8 slides and drives the magnet plate 9 to slide synchronously. The two relative magnet plates 9 repel each other. At the same time, when the sliding piston 8 slides to the farthest end, the pressure valve is opened, and air flows in opposite directions appear between the two magnet plates 9, thereby causing reverse forces to occur between the limiting sleeves 5, thereby further ensuring the repulsive force between the limiting sleeves 5 and avoiding the repulsive force between the steel wire ropes 4. At the same time, during the sliding process of the steel wire rope 4, the cooperation of the magnet plate 9 and the rope sleeve 14 drives the limiting frame 13 to slide synchronously, and the rope sleeve 14 and the limiting frame 13 are used to effectively limit the limiting sleeve 5, thereby avoiding the problem of entanglement of the limiting sleeve 5.

[0044] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A steel wire rope anti-entanglement tower crane lifting equipment, comprising a tower crane body (1), characterized in that: The tower crane body (1) is slidably connected to a trolley (2), the lower end of the trolley (2) is fixedly connected to an electric hoist box (3), the electric hoist box (3) is internally connected to an electric hoist, and a steel wire rope (4) is wound around the electric hoist; The outer periphery of the steel wire rope (4) is sleeved with a limiting sleeve (5), the limiting sleeve (5) and the steel wire rope (4) are fixedly connected, the two limiting sleeves (5) are provided with a force plane (6) on the opposite side, the force plane (6) is provided with a plurality of limiting sleeve holes (7) distributed at equal intervals from top to bottom, the limiting sleeve holes (7) are coaxially slidably connected with a sliding piston (8), the sliding piston (8) is fixedly connected with a magnet plate (9) at one end away from the limiting sleeve (5), the two opposite magnet plates (9) have the same magnetic poles, and the limiting sleeve (5) is connected to an external air supply device; The sliding piston (8) is provided with an air passage (10) at its axis, the magnet plate (9) is provided with an air jet hole (11), the air jet hole (11) is connected to the air passage (10), and a pressure valve is fixedly connected to the inside of the air jet hole (11).

2. The steel wire rope anti-winding tower crane lifting equipment according to claim 1, characterized in that: The lower end of the electric hoist box (3) is fixedly connected to a storage box (12), the steel wire rope (4) passes through the storage box (12), a plurality of stacked limiting frames (13) are arranged inside the storage box (12), two symmetrically distributed rope sleeves (14) are arranged inside the limiting frame (13), and the rope sleeve (14) is sleeved on the outside of the limiting sleeve (5), and the two steel wire ropes (4) are limited by the rope sleeve (14) and the limiting frame (13), so as to avoid the two steel wire ropes (4) from being entangled; A telescopic sleeve (15) is connected between the two symmetrical rope sleeves (14), and the outer sleeve of the telescopic sleeve (15) is provided with an elastic A spring, the two ends of the spring are respectively connected to the two rope sleeves (14), the rope sleeves (14) are each provided with a limited rectangular groove (16), the storage box (12) is internally fixedly connected with two symmetrically distributed limiting rods (17), the limiting rods (17) are respectively inserted into the rope sleeves (14) on the same side, the rope sleeves (14) are limited by the limiting rods (17), the lower end of the limiting rod (17) is inclined, so that the rope sleeve (14) at the lower end slides toward the side close to the steel wire rope (4); The lower end of the storage box (12) is fixedly connected to two symmetrically distributed limit boxes (18), the limit box (18) is slidably connected to a support plate (19) inside, the limit box (18) is fixedly connected to an electric push rod (20) connected to the support plate (19), the upper and lower ends of the support plate (19) are fixedly connected to pressure sensors (27), and the lower end surface of the support plate (19) is inclined.

3. The steel wire rope anti-winding tower crane lifting equipment according to claim 2, characterized in that: Sliding rails (21) are provided on both sides of the storage box (12), and lifting frames (22) are connected to the sliding rails (21) for sliding upward and downward movement. The lifting frames (22) are fixedly connected to an arc-shaped pressing frame (23) that matches the rope sleeve (14), and the lifting frames (22) drive the arc-shaped pressing frame (23) to slide downward, thereby squeezing the limiting frame (13); The upper ends of the lifting frames (22) are fixedly connected to telescopic rods (24), and the upper ends of the telescopic rods (24) are slidably connected to There is a storage sleeve (25), the storage sleeve (25) and the telescopic rod (24) are connected via a spring, and the spring is in a compressed state.

4. The steel wire rope anti-winding tower crane lifting equipment according to claim 3, characterized in that: The upper and lower end surfaces of the limit frame (13) are fixedly connected to a plurality of limit columns (26), and the limit columns (26) at the upper and lower ends of two adjacent limit frames (13) are in contact and fit, so that the two adjacent limit frames (13) are in a clearance fit state.

5. The steel wire rope anti-winding tower crane lifting equipment according to claim 4, characterized in that: A circular groove is provided inside the limiting column (26), a circular magnet (28) is fixedly connected inside the circular groove, and the magnetic poles of the circular magnet (28) at the upper and lower ends of the limiting frame (13) are opposite.

6. The steel wire rope anti-winding tower crane lifting equipment according to claim 4, characterized in that: The rope sleeve (14) is made of a magnetic material, and the magnet plate (9) is used to adsorb the rope sleeve (14), thereby ensuring synchronous sliding of the magnet plate (9) and the rope sleeve (14).

7. The steel wire rope anti-winding tower crane lifting equipment according to claim 4, characterized in that: The limit frame (13) is divided into a left half frame (29) and a right half frame (30), the left plate frame is provided with a limit hole (31), the right half frame (30) is fixedly connected with a limit pin (32) matching with the limit hole (31), and the left half frame (29) and the right half frame (30) are connected by a bolt structure.

8. The steel wire rope anti-winding tower crane lifting equipment according to claim 4, characterized in that: A control module (33) and an air supply pump are fixedly connected to the tower crane body (1); the air supply pump, the electric push rod (20) and the pressure sensor (27) are all connected to the control module (33).

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