An anti-rotation suppression structure for a crane steel wire rope

Abstract

The present invention relates to the field of cranes, and specifically relates to a suppression structure for preventing the rotation of the steel wire rope of a crane. The suppression structure is arranged on the crane main body. The crane main body has a main drum for unwinding the steel wire rope and a hook connected to the steel wire rope. The suppression structure includes a pulling rope for generating an additional pulling force on the hook and a guiding member for preventing the pulling rope from winding around the steel wire rope. The crane main body also has a secondary drum for unwinding the pulling rope. When the main drum drives the steel wire rope to unwind, the secondary drum synchronously drives the pulling rope to unwind. The present invention effectively restricts the unwinding direction of the pulling rope through the guiding member, and applies a balanced bidirectional pulling force to the hook through the synchronous operation of the main drum and the secondary drum, maintaining the stable state of the heavy object. With the pulling force of the pulling rope on the hook, the rotation of the steel wire rope during the lifting or lowering of the heavy object is indirectly prevented, ensuring that the heavy object is lifted or lowered in a stable state and avoiding the occurrence of operation accidents.

Description

Technical Field

[0001] The present invention relates to the field of cranes, and specifically to a structure for suppressing the rotation of a crane wire rope. Background Art

[0002] At present, in the daily use of cranes, since some cranes are very tall and the wire ropes are overloaded during use, the rotational stress of the wire ropes gradually accumulates. When it reaches a certain strength, the wire ropes will rotate and move. At this time, the upper end of the wire rope is wound around the drum, and the lower wire rope twists and drives the hook to rotate in the air, which is prone to accidents.

[0003] The currently disclosed Chinese patent CN220376219U, a wire rope anti-twist structure for a crane, includes a support frame. A driving motor is arranged at the upper end of the support frame, and a wire rope drum is arranged on one side of the driving motor. A driving assembly is arranged on one side of the driving motor, and an anti-twist mechanism is arranged on one side of the driving assembly. The anti-twist mechanism includes a mounting frame. The mounting frame is arranged on one side of the driving assembly. A first guide rod is movably installed inside the mounting frame. One end of the first guide rod is provided with a driving gear, a second guide rod. The second guide rod is movably installed inside the mounting frame. The driving gear is meshed with a driven gear arranged at one end of the second guide rod. Guide rollers and a guide shaft are arranged on the outer sides of the first guide rod and the second guide rod. The guide shaft is arranged inside the mounting frame. One ends of the first guide rod and the second guide rod are rotatably connected to the guide shaft through opened guide holes.

[0004] According to the above patent, in the process of winding and unwinding the wire rope drum, the above patent uses the lifting and lowering of the wire rope to drive the guide rollers on the first guide rod and the second guide rod to rotate synchronously through the anti-twist mechanism, making the winding and unwinding of the wire rope smoother and avoiding twisting and knotting. However, preventing the self-rotation of the wire rope only through the design of the guide rollers on the first guide rod and the second guide rod may have certain limitations. There is no additional mechanism to directly prevent the self-twisting of the wire rope itself. Then, when the wire rope passes through the guide rollers, although its straight path is guided, it may still rotate to a certain extent. Therefore, at present, a suppression structure that combines anti-twist measures to completely prevent the self-rotation of the wire rope in the guiding mechanism is needed. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, a structure for suppressing the rotation of a crane wire rope is provided. The present invention effectively restricts the unwinding direction of the pulling rope through a guiding member, and through the synchronous operation of the main drum and the auxiliary drum, an equalized bidirectional pulling force is applied to the hook, maintaining the stable state of the heavy object. Along with the pulling force of the pulling rope on the hook, the rotation of the wire rope during the process of lifting or lowering the heavy object is indirectly prevented, ensuring that the heavy object is lifted or lowered in a stable state and avoiding the occurrence of operating accidents.

[0006] To solve the problems of the prior art, the present invention provides a suppression structure for preventing the rotation of the steel wire rope of a crane. The suppression structure is arranged on the main body of the crane. The main body of the crane has a main drum for unwinding the steel wire rope and a hook connected to the steel wire rope. The suppression structure includes a pulling rope for generating an additional pulling force on the hook and a guiding member for preventing the pulling rope from winding around the steel wire rope. The main body of the crane also has a secondary drum for unwinding the pulling rope. The axial direction of the secondary drum is parallel to the axial direction of the main drum. When the main drum drives the steel wire rope to unwind, the secondary drum synchronously drives the pulling rope to unwind. During this process, the guiding member prevents the unwinding position of the pulling rope on the secondary drum from shifting, thereby restricting the rotation of the hook driving the steel wire rope.

[0007] Preferably, the steel wire rope and the pulling rope are respectively wound around the corresponding main drum and secondary drum in a spiral form. The main body of the crane is provided with a guiding rod group that can allow the guiding member to move synchronously along the axial direction of the secondary drum following the unwinding of the pulling rope. The guiding member is slidably arranged on the guiding rod group.

[0008] Preferably, the guiding member is specifically a guide roller. The end of the pulling rope is wound out from above the guide roller and fixedly connected to the hook. The guide roller is provided with a positioning fixture for clamping the pulling rope therein to prevent it from disengaging from the guiding member due to excessive rotational force of the steel wire rope.

[0009] Preferably, the positioning fixture is provided with a pair of clamping blocks for clamping the pulling rope therein, and each clamping block is fixedly connected to the guide roller.

[0010] Preferably, the positioning fixture is provided with a pair of clamping blocks for clamping the pulling rope therein. Each clamping block is movably connected to the guide roller. A sliding seat slidably connected to the guiding rod group extends in the direction of the corresponding clamping block on each guide roller. Each sliding seat has a pressing portion extending in the direction of the corresponding clamping block. A compression spring in a compressed state is fixedly connected between each pressing portion and the corresponding clamping block.

[0011] Preferably, an electromagnetic driver is provided between the sliding seat and the clamping block to ensure that the clamping block abuts against the pulling rope. The electromagnetic driver has a first magnetic ring fixedly connected to the sliding seat and a second magnetic ring fixedly connected to the clamping block. The second magnetic ring can move relative to the first magnetic ring.

[0012] Preferably, the guiding rod group is provided with a limiting member for guiding the steel wire rope to unwind in a vertical state. The limiting member is specifically guide wheels symmetrically arranged on both sides of the steel wire rope. A sliding sleeve for rotatably connecting the guide wheels is slidably arranged on the guiding rod group.

[0013] Preferably, the hook is provided with a fixing plate for connecting the wire rope and the pull rope, and the sliding sleeve is provided with a sensing element for cooperating with the fixing plate to determine whether the hook is tilted.

[0014] Preferably, the sensing element is a pressure sensor, and a horizontal plate for installing the pressure sensor is fixedly connected to the sliding sleeve. The horizontal plate is provided with a through hole for the steel wire rope to pass through. A pressure sensor is provided around the steel wire rope, and the fixed plate has a horizontal surface that can contact all the pressure sensors.

[0015] Preferably, the horizontal surface of the fixed plate has a clamping portion extending upward and capable of being embedded in a through-opening on the horizontal plate.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. The present invention effectively limits the unwinding direction of the pull rope through the guide member, and applies a balanced bidirectional pulling force to the hook through the synchronous operation of the main drum and the auxiliary drum, which not only maintains the stability of the heavy object, but also reduces the swing. As the pull rope exerts a pulling force on the hook, the rotation of the wire rope during the lifting or lowering of the heavy object is indirectly prevented, and the entanglement between the wire rope and the pull rope is avoided, ensuring that the heavy object is lifted or lowered in a stable state, and avoiding the occurrence of operation accidents.

[0018] 2. The present invention further restricts the pull rope through the positioning clamp to prevent the pull rope from escaping from the guide member. Even if the wire rope tends to rotate due to external force, the path of the pull rope is still strictly controlled, thereby indirectly suppressing the rotation of the wire rope and improving the stability of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a crane wire rope restraint structure to prevent rotation Figure 1 .

[0020] Figure 2 A schematic diagram of the three-dimensional structure of a crane wire rope restraint structure to prevent rotation Figure 2 .

[0021] Figure 3 It is a planar cross-sectional view of a restraining structure for preventing the wire rope of a crane from rotating.

[0022] Figure 4 The present invention is a partial three-dimensional cross-sectional view of a restraining structure for preventing the wire rope of a crane from rotating.

[0023] Figure 5 The present invention is a three-dimensional structural diagram of a crane wire rope, a restraining structure for preventing the wire rope from rotating, a pull rope and a guide member.

[0024] Figure 6 A plan sectional view of a steel wire rope, a pull rope, and a guide member of an anti-rotation suppression structure for a crane steel wire rope.

[0025] Figure 7 A three-dimensional sectional view of a steel wire rope, a pull rope, and a guide member of an anti-rotation suppression structure for a crane steel wire rope.

[0026] Figure 8 A three-dimensional structural schematic diagram of the first embodiment of a positioning fixture of an anti-rotation suppression structure for a crane steel wire rope.

[0027] Figure 9 A three-dimensional structural schematic diagram of the second embodiment of a positioning fixture of an anti-rotation suppression structure for a crane steel wire rope.

[0028] Figure 10 A top view of the second embodiment of a positioning fixture of an anti-rotation suppression structure for a crane steel wire rope.

[0029] In the figure, the reference numerals are: 1, crane main body; 11, main drum; 12, auxiliary drum; 13, guide rod group; 2, steel wire rope; 21, hook; 211, fixing plate member; 2111, clamping portion; 3, pull rope; 4, guide member; 41, sliding seat; 411, first magnetic ring; 412, second magnetic ring; 5, positioning fixture; 51, clamping block; 52, pressing portion; 521, compression spring; 6, limiting member; 61, sliding sleeve; 611, horizontal plate member; 62, sensing element. Detailed implementation manners

[0030] To further understand the features, technical means, and the specific purposes and functions achieved by the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific implementation manners.

[0031] See Figures 1-6 As shown, an anti-rotation suppression structure for a crane steel wire rope is provided on the crane main body 1. The crane main body 1 has a main drum 11 for unwinding the steel wire rope 2, and a hook 21 connected to the steel wire rope 2. The suppression structure includes a pull rope 3 for generating an additional pulling force on the hook 21, and a guide member 4 for preventing the pull rope 3 from winding around the steel wire rope 2. The crane main body 1 also has an auxiliary drum 12 for unwinding the pull rope 3. The axis direction of the auxiliary drum 12 is parallel to the axis direction of the main drum 11. When the main drum 11 drives the steel wire rope 2 to unwind, the auxiliary drum 12 synchronously drives the pull rope 3 to unwind. During this process, the guide member 4 prevents the unwinding position of the pull rope 3 on the auxiliary drum 12 from shifting, thereby restricting the rotation of the hook 21 driving the steel wire rope 2.

[0032] When the operation of the crane main body 1 starts, the main drum 11 begins to drive the wire rope 2 to unwind, so as to lift or lower a heavy object. Under the action of the self-weight of the object hung by the hook 21, the wire rope 2 remains in a sagging state. At the same time, the auxiliary drum 12 operates synchronously to unwind the pulling rope 3. The pulling rope 3 is guided by the guiding member 4 and unwinds along a predetermined path, applying an additional pulling force to the hook 21, forming balanced pulling forces in two directions, which helps to maintain the stability of the heavy object, reduce swinging, and make the lifting or lowering process smoother and safer. In actual operation, when the heavy object is lifted or lowered, it may have a rotating tendency due to external forces. By effectively controlling the unwinding direction and path of the pulling rope 3 through the guiding member 4, it is ensured that the movement trajectory of the pulling rope 3 is coordinated with the wire rope 2, thereby indirectly offsetting the rotating torque of the hook 21 and the wire rope 2, preventing the occurrence of rotation, ensuring the stability of the unwinding trajectory of the pulling rope 3, effectively suppressing the rotation of the wire rope 2, ensuring the independent operation between the pulling rope 3 and the wire rope 2, and avoiding entanglement between the two during winding or releasing due to the rotation of the hook 21.

[0033] See Figures 3-6 As shown, the wire rope 2 and the pulling rope 3 are respectively wound around the corresponding main drum 11 and auxiliary drum 12 in a spiral form. On the crane main body 1, there is a guiding rod group 13 that can allow the guiding member 4 to move synchronously along the axis direction of the auxiliary drum 12 following the unwinding of the pulling rope 3, and the guiding member 4 is slidably arranged on the guiding rod group 13.

[0034] The guiding rod group 13 has multiple rods on which the guiding member 4 can slide smoothly. When the operation of the crane main body 1 starts, the main drum 11 and the auxiliary drum 12 are respectively driven by driving devices (the driving devices are not shown in the figure). While the main drum 11 drives the wire rope 2 to unwind to lift or lower a heavy object, the auxiliary drum 12 also operates synchronously to release the pulling rope 3. The pulling rope 3 and the wire rope 2 work together to jointly bear the weight of the hook 21 and the heavy object, ensuring the stability of the operation. As the pulling rope 3 unwinds, the guiding member 4 slides on the guiding rod group 13, following the movement trajectory of the pulling rope 3. If the wire rope 2 rotates, this process will cause the pulling rope 3 to be subjected to an outward pulling force guided by the hook 21. Due to the setting of the guiding member 4, the movement of the pulling rope 3 being deviated from the original unwinding position by the force is restricted, the tension and direction of the pulling rope 3 are controlled, and the rotating tendency of the hook 21 and the wire rope 2 is effectively suppressed.

[0035] See Figures 3-6 As shown, the guiding member 4 is specifically a guide roller. The end of the pulling rope 3 winds out from above the guide roller and is fixedly connected to the hook 21. On the guide roller, there is a positioning fixture 5 for clamping the pulling rope 3 therein to prevent it from detaching from the guiding member 4 due to excessive rotating force of the wire rope 2.

[0036] During the operation, if the wire rope 2 generates a rotational force due to an external force, this rotational force will be transmitted to the pull rope 3 through the hook 21, causing the pull rope 3 to tend to deviate from the guiding path established by the guide roller. At this time, the positioning fixture 5 comes into play, restricting the deflection of the pull rope 3 and ensuring that it remains stably on the predetermined path of the guide roller. By using the guide roller and the positioning fixture 5 in combination, even if the wire rope 2 has a tendency to rotate under the action of an external force, the path of the pull rope 3 is still strictly controlled, thereby indirectly suppressing the rotation of the wire rope 2. The pulling direction of the pull rope 3 on the hook 21 is coordinated with the wire rope 2 and acts on the heavy object together, further stabilizing the operation process.

[0037] See Figure 5 and Figure 8 As shown, the positioning fixture 5 is provided with a pair of clamping blocks 51 that clamp the pull rope 3 therein, and each of the clamping blocks 51 is fixedly connected to the guide roller.

[0038] After the pull rope 3 passes over the guide roller and is connected to the hook 21, a pair of clamping blocks 51 restrict the pull rope 3 therein, and the pull rope 3 is maintained at the central position of the guide roller by an appropriate pressure, neither being too tight to damage the pull rope 3 nor being too loose to cause the pull rope 3 to slip during operation. No matter how the wire rope 2 moves or is affected by an external force, it always maintains a stable clamping of the pull rope 3. Even if the wire rope 2 generates a rotational force due to the dynamic change of the heavy object or an external force, the clamping blocks 51 can effectively prevent the pull rope 3 from deviating from its predetermined path due to these forces, thereby indirectly suppressing the rotation of the wire rope 2.

[0039] See Figure 5 、 Figure 9 and Figure 10 As shown, the positioning fixture 5 is provided with a pair of clamping blocks 51 that clamp the pull rope 3 therein. Each of the clamping blocks 51 is movably connected to the guide roller. A sliding seat 41 that is slidably connected to the guide rod group 13 extends in the direction of the corresponding clamping block 51 on each of the guide rollers. A pressing portion 52 that extends in the direction of the corresponding clamping block 51 is provided on each of the sliding seats 41. A compression spring 521 in a compressed state is fixedly connected between each of the pressing portions 52 and the corresponding clamping block 51.

[0040] After the pull rope 3 passes over the guide roller and is connected to the hook 21, a pair of clamping blocks 51 restrict the pull rope 3 therein. The spring in the compressed state presses the clamping blocks 51 against the pull rope 3, ensuring both the stable fixation of the pull rope 3 and avoiding the risk of damage to the pull rope 3 caused by being too tight or slipping caused by being too loose. During the operation, through the compression of the spring, the clamping state of a pair of clamping blocks 51 on the pull rope 3 is maintained, maintaining the correct guiding and stable transmission of the pull rope 3 and suppressing the rotation tendency of the wire rope 2.

[0041] See Figure 9 and Figure 10As shown, an electromagnetic driver is provided between the sliding seat 41 and the clamping block 51 to ensure that the clamping block 51 abuts against the pulling rope 3. The electromagnetic driver has a first magnetic ring 411 fixedly connected to the sliding seat 41 and a second magnetic ring 412 fixedly connected to the clamping block 51, and the second magnetic ring 412 can move relative to the first magnetic ring 411.

[0042] When the electromagnetic driver controls the current to make the first magnetic ring 411 repel the second magnetic ring 412, this process precisely controls the pressure of the clamping block 51 on the pulling rope 3, realizing dynamic adjustment. During the operation process, according to the actual load on the pulling rope 3, the electromagnetic driver can adjust in real time, automatically increasing or decreasing the clamping force of the clamping block 51 on the pulling rope 3, avoiding the situation that the compression degree of the compression spring 521 does not meet the requirements. When it is necessary to enhance the clamping to prevent the pulling rope 3 from slipping, the electromagnetic force is enhanced to make the second magnetic ring 412 move away from the first magnetic ring 411, and vice versa to reduce the clamping force, further strengthening the stability of the pulling rope 3 between a pair of clamping blocks 51 and suppressing the rotation of the steel wire rope 2.

[0043] See Figures 4-7 As shown, a limiting member 6 for guiding the steel wire rope 2 to unwind in a vertical state is provided on the guide rod group 13. The limiting member 6 is specifically a guide wheel symmetrically arranged on both sides of the steel wire rope 2, and a sliding sleeve 61 for the guide wheel to be rotatably connected thereto is slidably provided on the guide rod group 13.

[0044] When the main drum 11 starts to drive the steel wire rope 2 to unwind, the steel wire rope 2 passes through the guide wheel. The function of the guide wheel is to guide the steel wire rope 2 to unwind in the vertical direction, avoiding deflection or disorder of the steel wire rope 2 during the unwinding process. As the steel wire rope 2 is released or recovered, the sliding of the sliding sleeve 61 on the guide rod group 13 allows the guide wheel to follow the movement track of the steel wire rope 2, always maintaining effective guidance for the steel wire rope 2, ensuring the stability of the contact point between the guide wheel and the steel wire rope 2 when the length of the steel wire rope 2 changes, and maintaining the vertical state of the steel wire rope 2.

[0045] See Figures 6-9 As shown, the hook 21 has a fixing plate member 211 for connecting the steel wire rope 2 and the pulling rope 3, and an induction element 62 for cooperating with the fixing plate member 211 to judge whether the hook 21 is tilted is provided on the sliding sleeve 61.

[0046] Before the crane main body 1 operates, the fixing plate member 211 and the sensing element 62 on the sliding sleeve 61 are kept in a triggering state of relative position. If the hook 21 tilts beyond the preset angle, the relative position between the fixing plate member 211 and the sensing element 62 changes. This change will be captured by the sensing element 62. The tilt information detected by the sensing element 62 is converted into an electrical signal and transmitted in real time to the driving devices of the main drum 11 and the auxiliary drum 12. According to the received signal, the unwinding states of the wire rope 2 and the pulling rope 3 are adjusted until the fixing plate member 211 is adjusted to a horizontal state, avoiding the tilt of the hook 21. At this time, both the wire rope 2 and the pulling rope 3 are in a taut state, which is the initial unwinding state of the wire rope 2 and the pulling rope 3. During the operation process, as the wire rope 2 and the pulling rope 3 unwind synchronously, the fixing plate member 211 is always kept in a horizontal state, thereby stabilizing the heavy object on the hook 21.

[0047] See Figures 6-9 As shown, the sensing element 62 is specifically a pressure sensor. A horizontal plate member 611 for installing the pressure sensor is fixedly connected to the sliding sleeve 61. The horizontal plate member 611 is provided with a through hole for the wire rope 2 to pass through. One such pressure sensor is provided around the wire rope 2. The fixing plate member 211 has a horizontal plane that can contact all the pressure sensors.

[0048] Before the operation starts, by adjusting the contact between the fixing plate member 211 and all the pressure sensors, a reference state is formed. At this time, the readings of the four pressure sensors are balanced, indicating that the hook 21 is in a horizontal position. If the hook 21 tilts, the relative position between the fixing plate member 211 and the horizontal plate member 611 changes, resulting in a change in the pressure distribution received by the pressure sensors. Specifically, when the hook 21 tilts in a certain direction, the pressure sensor on the lower side will record a decrease in pressure due to the reduction of the contact surface, while the pressure sensor on the higher side will record an increase in pressure due to the increase of the contact surface. The pressure sensors convert these pressure changes into electrical signals and send them to the driving device in real time. According to the signal differences of the pressure sensors, the main drum 11 and the auxiliary drum 12 are automatically driven to adjust the tensions of the wire rope 2 and the pulling rope 3, so that the hook 21 returns to the horizontal state. During the operation, the unwinding speeds of the wire rope 2 and the pulling rope 3 are controlled to be the same.

[0049] See Figure 6 and Figure 7 As shown, the horizontal plane of the fixing plate member 211 has a clamping portion 2111 that extends upward and can be embedded into the through hole on the horizontal plate member 611.

[0050] After the fixed plate member 211 remains parallel to the horizontal plate member 611 after adjustment, the clamping portion 2111 can be inserted into the through hole on the horizontal plate member 611. At this time, the pressures sensed by all the pressure sensors are the same, which is beneficial to accurately control the balance state of the hook 21 before operation.

[0051] In the present invention, the guiding member 4 effectively restricts the unwinding direction of the pulling rope 3. Through the synchronous operation of the main drum 11 and the auxiliary drum 12, an equalized bidirectional pulling force is applied to the hook 21, which not only maintains the stable state of the heavy object but also reduces the swing. Along with the pulling force of the pulling rope 3 on the hook 21, it indirectly prevents the rotation of the steel wire rope 2 during the process of lifting or lowering the heavy object, avoids the entanglement between the steel wire rope 2 and the pulling rope 3, ensures that the heavy object is lifted or lowered in a stable state, and avoids the occurrence of operation accidents.

[0052] The above embodiments only represent one or several implementation manners of the present invention, and the description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A structure for preventing a crane wire rope from rotating, the structure being provided on a crane body, the crane body comprising a main drum for unwinding the wire rope and a hook connected to the wire rope; It is characterized in that The restraining structure includes a pull rope for generating additional pulling force on the hook, and a guide for preventing the pull rope from being entangled with the wire rope. The crane body also has an auxiliary drum for unwinding the pull rope, and the axis direction of the auxiliary drum is parallel to the axis direction of the main drum. The wire rope and the pull rope are respectively wound in a spiral form on the corresponding main drum and auxiliary drum. The crane body is provided with a guide rod group that can allow the guide member to move synchronously along the axis direction of the auxiliary drum following the unwinding of the pull rope. The guide member is slidably arranged on the guide rod group. The guide member is specifically a guide roller, the end of the pull rope is wound around the top of the guide roller and fixedly connected to the hook, and the guide roller is provided with a positioning clamp for clamping the pull rope therein to prevent it from escaping from the guide member due to excessive rotational force of the wire rope; The positioning clamp is provided with a pair of clamping blocks for clamping the pull rope therein, each of the clamping blocks is movably connected to the guide roller, and each guide roller has a slide extending in the direction of the corresponding clamping block and slidably connected to the guide rod group, and each slide has a pressing portion extending in the direction of the corresponding clamping block, and a compression spring in a compressed state is fixedly connected between each pressing portion and the corresponding clamping block; An electromagnetic driver is provided between the slide and the clamping block to ensure that the clamping block contacts the pull rope. The electromagnetic driver has a first magnetic ring fixedly connected to the slide and a second magnetic ring fixedly connected to the clamping block. The second magnetic ring can move relative to the first magnetic ring.

2. The anti-rotation suppression structure for a crane wire rope according to claim 1, wherein, The guide rod group is provided with a limiter for guiding the wire rope to unwind in a vertical state. The limiter is specifically a guide wheel symmetrically arranged on both sides of the wire rope. The guide rod group is slidably provided with a sliding sleeve connected thereto for the guide wheel to rotate.

3. The anti-rotation suppression structure for a crane wire rope according to claim 2, characterized in that, The hook is provided with a fixing plate for connecting the steel wire rope and the pull rope, and the sliding sleeve is provided with a sensing element for cooperating with the fixing plate to judge whether the hook is tilted.

4. A suppression structure for preventing rotation of a crane wire rope according to claim 3, characterized in that, The sensing element is specifically a pressure sensor. A horizontal plate for installing the pressure sensor is fixedly connected to the sliding sleeve. The horizontal plate has a through hole for the steel wire rope to pass through. A pressure sensor is arranged around the steel wire rope. The fixed plate has a horizontal surface that can contact all the pressure sensors.

5. A suppression structure for preventing rotation of a crane wire rope according to claim 4, characterized in that, A clamping portion is provided on the horizontal surface of the fixing plate and extends upward and can be embedded in a through-hole on the horizontal plate.

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