Sliding rope protection device for hoisting equipment

Abstract

The utility model discloses a sliding rope protection device for hoisting equipment, which comprises a hoisting bracket arranged on the hoisting equipment, and further comprises a moving mechanism for providing moving support for the hoisting bracket, a protection mechanism for protecting a sliding rope and a limiting mechanism for limiting a hoisted object, the hoisting device comprises a hoisting support, a moving mechanism, a protection mechanism and a limiting mechanism, the moving mechanism is located on the lower portion of the hoisting support, the protection mechanism is arranged on the inner side of the hoisting support, and the limiting mechanism is assembled on the side portion of the hoisting support. According to the hoisting device, the rope can be stably tensioned, the hoisting wheel set can be locked in the hoisting process so that the slipping rope can be prevented from loosening, the limiting mechanism is arranged, the situation that the slipping rope shifts relative to a hoisted object, and consequently the hoisted object and the hoisting device vibrate is avoided, and the hoisting safety is improved; and the rope breaking phenomenon caused by rope sliding due to corner damage of a hoisted object can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting equipment, in particular to a guy rope protection device for hoisting equipment. Background Art

[0002] In the prior art, in domestic wind turbine hoisting projects, the nacelle of a wind turbine is installed at the top of the wind turbine. The height of the top of the wind turbine is generally above 90m. The strong wind at high altitude has a great impact on the alignment installation of the nacelle. In order to ensure that the nacelle can be quickly and stably aligned and positioned, guy ropes are usually tied to the nacelle. Ground personnel stabilize the orientation of the nacelle by dragging the guy ropes so as to quickly align and position. When hoisting the nacelle, the wind at high altitude is strong, and the required dragging force of the guy ropes on the ground also increases accordingly. The position where the guy ropes are tied often comes into contact and friction with the sharp corners of the nacelle, and the guy ropes are easily cut off, making the function of the guy ropes fail and posing a great safety hazard to the hoisting.

[0003] The Chinese utility model patent with the application number: 202221290214.3 discloses a nacelle hoisting guy rope protection device, which includes a protective sleeve detachably installed in one of the bolt holes arranged circumferentially on the nacelle docking surface. A through hole for the guy rope to pass through is provided in the protective sleeve. After the guy rope passes through the through hole, it is tied to a fixed point inside the nacelle. One end of the through hole facing away from the fixed point inside the nacelle is a flared opening. The protective sleeve is a T-shaped structure composed of a blocking block and a plugging cylinder. The blocking block fits on the side of the nacelle docking surface facing away from the fixed point inside the nacelle. After the plugging cylinder passes through the bolt hole, a stop ring is installed. The flared opening is located inside the blocking block. External connection threads are provided on the outer wall of the plugging cylinder, and internal connection threads are provided on the inner wall of the stop ring. The stop ring and the plugging cylinder are detachably installed through threads. However, this kind of nacelle hoisting guy rope protection device protects the guy rope through the protective sleeve, its structure is too simple, the protection effect is poor, the reliability is poor by protecting the guy rope through a single protective sleeve structure, it lacks a limiting structure. As the nacelle rotates and stands upright, the bundled guy rope will move relative to the surface of the nacelle, causing the nacelle and the crane boom to vibrate, which is not conducive to safety. Moreover, the four edges and corners of the nacelle cross-section will damage the bundled guy rope, and the guy rope is prone to breakage, causing safety hazards. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a guy rope protection device for hoisting equipment.

[0005] To achieve the above purpose, the technical solution proposed by the utility model is:

[0006] A guy rope protection device for a hoisting device, comprising a hoisting bracket arranged on the hoisting device, and further comprising a moving mechanism for providing moving support for the hoisting bracket, a protection mechanism for protecting the guy rope, and a limiting mechanism for limiting the hoisted object. The moving mechanism is located at the lower part of the hoisting bracket, the protection mechanism is configured inside the hoisting bracket, and the limiting mechanism is assembled on the side part of the hoisting bracket.

[0007] The hoisting bracket includes a support frame, a mounting cross beam, a connecting rod, and a hoisting assembly. There are two groups of the support frames, and the two groups of support frames are arranged side by side at intervals. There are two groups of the mounting cross beams, and the two groups of mounting cross beams are arranged side by side at intervals on the inner sides of the upper parts of the two groups of support frames and their two ends are respectively fixedly connected to the two groups of support frames. There are two groups of the connecting rods, and the two groups of connecting rods are symmetrically arranged on the lower sides of the two sides of the two groups of support frames and their two ends are respectively fixedly connected to the two groups of support frames. The hoisting assembly is arranged on the inner sides of the upper parts of the two groups of mounting cross beams.

[0008] The hoisting assembly includes hoisting side frames, a hoisting base, and hoisting support rods. There are two groups of the hoisting side frames, and the two groups of hoisting side frames are respectively arranged at the middle parts of the upper ends of the two groups of mounting cross beams and are fixedly connected to the mounting cross beams. The hoisting side frame is of a V-shaped side frame structure. The hoisting base is arranged at the upper ends of the two groups of hoisting side frames and is fixedly connected to the two groups of hoisting side frames. The hoisting support rods are arranged at the lower parts of the two groups of hoisting bases and penetrate through the hoisting bases and are inserted into the hoisting bases. The hoisting support rods are clamped to the hoisting bases through mounting plates.

[0009] It further includes a hoisting spring. The hoisting spring is arranged on the upper part of the hoisting support rod and is sleeved on the hoisting support rod. The upper end of the hoisting spring abuts against the hoisting base, and the lower end of the hoisting spring abuts against the hoisting support rod through a pin.

[0010] The moving mechanism includes a moving base, moving rotating shafts, and moving rollers. The moving base is arranged at the lower part of one end of the support frame and is fixedly connected to the support frame through a mounting plate. There are two groups of the moving rotating shafts, and the two groups of moving rotating shafts are symmetrically arranged on the inner sides of the two ends of the moving base and penetrate through the moving base and are fixedly connected to the moving base. There are two groups of the moving rollers, and the two groups of moving rollers are respectively arranged at the inner ends of the two groups of moving rotating shafts and are rotatably connected to the corresponding moving rotating shafts through bearings.

[0011] There are four groups of the moving mechanisms, and the four groups of moving mechanisms are respectively arranged at the lower ends of the two ends of the two groups of support frames.

[0012] The protection mechanism includes protection guide wheels, a tensioning assembly, and a locking assembly. There are two sets of the protection guide wheels, and the two sets of protection guide wheels are arranged side by side at intervals inside the two sets of mounting crossbeams and are rotatably connected to the mounting crossbeams through mounting seats. A cable chute is provided on the circumference of the protection guide wheels. The tensioning assembly is arranged at the lower part of the two sets of mounting crossbeams, and the locking assembly is configured corresponding to the tensioning assembly on the side of one of the sets of mounting crossbeams.

[0013] The tensioning assembly includes a tensioning bracket, a tensioning base, a tensioning cylinder, a protection runner, and a tensioning runner. The tensioning bracket is arranged at the bottom of the two sets of mounting crossbeams and is fixedly connected to the mounting crossbeams through mounting plates. There are two sets of the tensioning bases, and the two sets of tensioning bases are respectively arranged at the lower parts of both ends of the tensioning bracket and are fixedly connected to the tensioning bracket. A connecting frame is provided between the two sets of tensioning bases. The tensioning cylinder is arranged on one side of one of the tensioning bases and is fixedly connected to the corresponding tensioning base through the connecting frame. There are two sets of the protection runners, and the two sets of protection runners are arranged side by side at intervals on the side of the tensioning base away from the tensioning cylinder and are rotatably connected to the corresponding tensioning base through the connecting frame. The tensioning runner is arranged at the output end of the tensioning cylinder and is rotatably connected to the output end of the tensioning cylinder through a mounting seat. The tensioning runner is slidably connected to the connecting frame through the mounting seat, and the tensioning runner is arranged corresponding to the two sets of protection runners.

[0014] The locking assembly includes a locking mounting plate, a locking runner, a locking gear, and a locking tooth. The locking mounting plate is arranged corresponding to the protection runner inside the middle part of one of the support frames and is fixedly connected to the corresponding support frame. The locking runner is arranged on one side of one of the mounting crossbeams corresponding to the locking mounting plate and is rotatably connected to the corresponding mounting crossbeam. The locking gear is arranged on the side of the locking runner away from the mounting crossbeam and is fixedly connected to the locking runner. The locking gear is rotatably connected to the locking mounting plate. The locking tooth is arranged corresponding to the locking gear inside the lower part of one of the support frames and is fixedly connected to the corresponding support frame. The locking tooth is engaged with the locking gear.

[0015] The limiting mechanism includes a limiting base plate, a limiting mounting seat, and limiting claws. The limiting base plate is arranged at the end of one of the mounting crossbeams and is fixedly connected to the corresponding mounting crossbeam. The limiting base plate is located outside the corresponding support frame. The limiting mounting seat is arranged outside the middle part of the support frame away from the limiting base plate and is fixedly connected to the support frame. There are two sets of the limiting claws, and the two sets of limiting claws are respectively arranged at one end of the limiting base plate and the limiting mounting seat away from the corresponding support frame and are fixedly connected to the corresponding limiting base plate or the limiting mounting seat through pins.

[0016] The beneficial effects of the present utility model are as follows:

[0017] It is provided with a moving mechanism, which can provide stable moving support for the hoisting bracket, and the hoisting bracket has a hoisting structure to meet the hoisting requirements of the equipment. It is provided with a protection mechanism, which can stably tension the rope and lock the hoisting wheel set during hoisting to avoid the loosening of the running rope. The hoisting stability is strong, the protection effect is strong, and the reliability is good. It is provided with a limiting mechanism to prevent the running rope from moving relative to the hoisted object, causing vibration of the hoisted object and the hoisting equipment, improving the hoisting safety, and avoiding the sharp edges of the hoisted object from damaging the running rope and causing the rope breakage phenomenon, eliminating potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the structure of the hoisting bracket of the present utility model;

[0020] Figure 3 is a schematic diagram of the structure of the tensioning assembly of the present utility model;

[0021] Figure 4 is a schematic diagram of the cooperation between the limiting mechanism and the hoisting bracket of the present utility model.

[0022] In the figure: 1, support frame; 2, installation cross beam; 3, connecting rod; 4, hoisting side frame; 5, hoisting base; 6, hoisting support rod; 7, hoisting spring; 8, moving base; 9, moving rotating shaft; 10, moving roller; 11, protection guide wheel; 12, tensioning bracket; 13, tensioning base; 14, tensioning cylinder; 15, protection rotating wheel; 16, tensioning rotating wheel; 17, locking mounting plate; 18, locking rotating wheel; 19, locking gear; 20, locking tooth; 21, limiting base plate; 22, limiting mounting seat; 23, limiting claw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] A running rope protection device for hoisting equipment, including a hoisting bracket arranged on the hoisting equipment, further including a moving mechanism for providing moving support for the hoisting bracket, a protection mechanism for protecting the running rope, and a limiting mechanism for limiting the hoisted object. The moving mechanism is located at the lower part of the hoisting bracket, the protection mechanism is arranged inside the hoisting bracket, and the limiting mechanism is assembled on the side of the hoisting bracket. The schematic diagram of the overall structure of the present utility model is as Figure 1 shown.

[0025] The hoisting support includes a support frame 1, an installation cross beam 2, a connecting rod 3 and a hoisting assembly. There are two groups of support frames 1, which are arranged side by side at intervals. There are two groups of installation cross beams 2, which are arranged side by side at intervals on the inner sides of the upper parts of the two groups of support frames 1 and their two ends are respectively fixedly connected to the two groups of support frames 1. There are two groups of connecting rods 3, which are symmetrically arranged on the two sides of the lower parts of the two groups of support frames 1 and their two ends are respectively fixedly connected to the two groups of support frames 1. The hoisting assembly is arranged on the inner sides of the upper parts of the two groups of installation cross beams 2. The hoisting support is combined by the support frame 1, the installation cross beam 2, the connecting rod 3 and the hoisting assembly to form a dual-purpose hoisting structure on the hoisting equipment. Among them, the support frame 1 is used to provide installation support for the installation cross beam 2. The installation cross beam 2 is used as the cross beam structure on the hoisting support to provide installation support for the hoisting assembly and the protection mechanism. The connecting rod 3 is used to connect the two groups of support frames 1 to improve the connection stability of the hoisting support. The hoisting assembly is used as the hoisting structure on the hoisting support to meet the hoisting requirements of the hoisting equipment. The structural schematic diagram of the hoisting support of the present utility model is as Figure 2 shown.

[0026] The hoisting assembly includes hoisting side frames 4, a hoisting base 5 and hoisting support rods 6. There are two groups of hoisting side frames 4, which are respectively arranged in the middle of the upper ends of the two groups of installation cross beams 2 and are fixedly connected to the installation cross beams 2. The hoisting side frame 4 is a V-shaped side frame structure. The hoisting base 5 is arranged at the upper ends of the two groups of hoisting side frames 4 and is fixedly connected to the two groups of hoisting side frames 4. The hoisting support rod 6 is arranged at the lower parts of the two groups of hoisting bases 5 and penetrates through the hoisting base 5 and is inserted into the hoisting base 5. The hoisting support rod 6 is clamped to the hoisting base 5 through a mounting plate. The hoisting assembly is combined by the hoisting side frames 4, the hoisting base 5 and the hoisting support rods 6 to be used as the hoisting structure on the hoisting support to meet the hoisting requirements of the hoisting equipment. Among them, the hoisting side frame 4 is used to provide installation support for the hoisting base 5. The hoisting base 5 is used to provide installation support for the hoisting support rod 6 and jointly form the hoisting structure on the hoisting support with the hoisting side frame 4 to meet the hoisting requirements of the hoisting equipment. The hoisting support rod 6 is used as a telescopic support rod structure on the hoisting base 5 to meet the adjustable connection requirements between the hoisting tool of the hoisting equipment and the hoisting base 5.

[0027] It further includes a hoisting spring 7. The hoisting spring 7 is arranged on the upper part of the hoisting support rod 6 and is sleeved on the hoisting support rod 6. The upper end of the hoisting spring 7 abuts against the hoisting base 5, and the lower end of the hoisting spring 7 abuts against the hoisting support rod 6 through a pin. Among them, the hoisting spring 7 is used as an elastic structure between the hoisting support rod 6 and the hoisting base 5 to meet the buffer connection requirements between the hoisting tool of the hoisting equipment and the hoisting base 5.

[0028] The moving mechanism includes a moving base 8, a moving rotating shaft 9, and moving rollers 10. The moving base 8 is arranged at the lower part of one end of the support frame 1 and is fixedly connected to the support frame 1 through a mounting plate. There are two sets of moving rotating shafts 9, which are symmetrically arranged at the inner sides of both ends of the moving base 8 and penetrate through the moving base 8 and are fixedly connected to the moving base 8. There are two sets of moving rollers 10, and the two sets of moving rollers 10 are respectively arranged at the inner ends of the two sets of moving rotating shafts 9 and are rotatably connected to the corresponding moving rotating shafts 9 through bearings. There are four sets of moving mechanisms, and the four sets of moving mechanisms are respectively arranged at the lower ends of both sides of the two support frames 1. The moving mechanism is configured through the cooperation of the moving base 8, the moving rotating shaft 9, and the moving rollers 10 to form the moving structure at the lower part of the hoisting bracket, so as to jointly form a moving overhead crane structure with the hoisting bracket, thereby forming a dual-purpose hoisting structure to meet the hoisting requirements and moving requirements of the hoisting equipment. Among them, the moving base 8 is used as the installation structure at the lower part of the support frame 1, so as to provide installation support for the moving rotating shaft 9. The moving rotating shaft 9 is used to provide installation support for the moving rollers 10. The moving rollers 10 are used to provide moving support for the support frame 1 through the moving rotating shaft 9 and the moving base 8, so as to meet the moving requirements of the hoisting bracket.

[0029] The protection mechanism includes protection guide wheels 11, a tensioning assembly, and a locking assembly. There are two sets of protection guide wheels 11, and the two sets of protection guide wheels 11 are arranged side by side at intervals inside the two mounting crossbeams 2 and are rotatably connected to the mounting crossbeams 2 through mounting seats. The circumferences of the protection guide wheels 11 are provided with rope chute tracks. The tensioning assembly is arranged at the lower part of the two mounting crossbeams 2, and the locking assembly is arranged corresponding to the tensioning assembly on the side of one of the mounting crossbeams 2. The protection mechanism is configured through the cooperation of the protection guide wheels 11, the tensioning assembly, and the locking assembly to form a rope protection structure, so as to protect the running rope during the hoisting process. Among them, the protection guide wheels 11 are used to protect and guide the running rope through the rope chute tracks on their circumferences during the hoisting process. The tensioning assembly is used to tension the running rope during the hoisting process. The locking assembly is used to lock the running rope during the hoisting process to prevent the running rope from loosening. The structural schematic diagram of the tensioning assembly of the present utility model is as Figure 3 shown.

[0030] The tensioning assembly includes a tensioning bracket 12, a tensioning base 13, a tensioning cylinder 14, a protection runner 15 and a tensioning runner 16. The tensioning bracket 12 is arranged at the bottom of two groups of mounting crossbeams 2 and is fixedly connected to the mounting crossbeam 2 through a mounting plate. There are two groups of tensioning bases 13, and the two groups of tensioning bases 13 are respectively arranged at the lower parts of both ends of the tensioning bracket 12 and are fixedly connected to the tensioning bracket 12. A connecting frame is arranged between the two groups of tensioning bases 13. The tensioning cylinder 14 is arranged on one side of one of the tensioning bases 13 and is fixedly connected to the corresponding tensioning base 13 through the connecting frame. There are two groups of protection runners 15, and the two groups of protection runners 15 are arranged side by side and at intervals on one side of the tensioning base 13 far from the tensioning cylinder 14 and are rotatably connected to the corresponding tensioning base 13 through the connecting frame. The tensioning runner 16 is arranged at the output end of the tensioning cylinder 14 and is rotatably connected to the output end of the tensioning cylinder 14 through a mounting seat. The tensioning runner 16 is slidably connected to the connecting frame through the mounting seat. The tensioning runner 16 is arranged corresponding to the two groups of protection runners 15. The tensioning assembly cooperates with the tensioning bracket 12, the tensioning base 13, the tensioning cylinder 14, the protection runner 15 and the tensioning runner 16 to tension and adjust the trailing rope during the hoisting process to ensure that the trailing rope is always in a stable state. Among them, the tensioning bracket 12 is used to provide a mounting support for the tensioning base 13 to mount the tensioning base 13 at the lower part of the mounting crossbeam 2. The tensioning base 13 is used to provide a mounting support for the connecting frame, so as to provide a mounting support for the tensioning cylinder 14 and the protection runner 15 through the connecting frame. The tensioning cylinder 14 is used to provide a mounting support for the tensioning runner 16 and drive the tensioning runner 16 to move horizontally through the telescopic movement of its output end. The protection runner 15 is used as a fixed pulley structure in the tensioning wheel set to provide a fixed rotational support for the trailing rope. The tensioning runner 16 is used to move horizontally along the connecting frame under the action of the output end of the tensioning cylinder 14, so as to adjust the distance between it and the two groups of protection runner 15 brackets, and further realize the tensioning adjustment of the trailing rope to ensure that the trailing rope is always in a stable state.

[0031] The locking assembly includes a locking mounting plate 17, a locking rotating wheel 18, a locking gear 19, and a locking tooth 20. The locking mounting plate 17 is correspondingly arranged at the inner middle part of one set of support frames 1 corresponding to the protection rotating wheel 15 and is fixedly connected to the corresponding support frame 1. The locking rotating wheel 18 is correspondingly arranged on one side of one set of mounting crossbeams 2 corresponding to the locking mounting plate 17 and is rotatably connected to the corresponding mounting crossbeam 2. The locking gear 19 is arranged on the side of the locking rotating wheel 18 away from the mounting crossbeam 2 and is fixedly connected to the locking rotating wheel 18. The locking gear 19 is rotatably connected to the locking mounting plate 17. The locking tooth 20 is correspondingly arranged at the lower inner part of one set of support frames 1 corresponding to the locking gear 19 and is fixedly connected to the corresponding support frame 1. The locking tooth 20 is engaged with the locking gear 19. The teeth on the locking gear 19 are arranged obliquely clockwise. The locking assembly cooperates with the locking mounting plate 17, the locking rotating wheel 18, the locking gear 19, and the locking tooth 20 to lock the trailing rope during the hoisting process to prevent the trailing rope from loosening. Among them, the locking mounting plate 17 is used to cooperate with the mounting crossbeam 2 to provide installation support for the locking rotating wheel 18 and the locking gear 19. The locking rotating wheel 18 is used to jointly provide rotating support for the trailing rope with the tensioning assembly. The locking gear 19 is used to jointly form a support wheel structure with locking function with the locking rotating wheel 18. The locking tooth 20 is used to jointly lock and unlock the locking rotating wheel 18 with the locking gear 19, so as to lock or unlock the trailing rope. During the hoisting process, the locking tooth 20 can be engaged with the locking gear 19 to lock the locking rotating wheel 18, thereby locking the trailing rope to prevent the trailing rope from loosening.

[0032] The limiting mechanism includes a limiting base plate 21, a limiting mounting seat 22, and a limiting claw 23. The limiting base plate 21 is arranged at the end of one set of mounting crossbeams 2 and is fixedly connected to the corresponding mounting crossbeam 2. The limiting base plate 21 is located outside the corresponding support frame 1. The limiting mounting seat 22 is arranged at the outer middle part of the support frame 1 away from the limiting base plate 21 and is fixedly connected to the support frame 1. There are two groups of limiting claws 23. The two groups of limiting claws 23 are respectively arranged at one end of the limiting base plate 21 and the limiting mounting seat 22 away from the corresponding support frame 1 and are fixedly connected to the corresponding limiting base plate 21 or limiting mounting seat 22 through pins. The limiting mechanism cooperates with the limiting base plate 21, the limiting mounting seat 22, and the limiting claw 23 to form a limiting structure on the hoisting bracket to limit the hoisted object during the hoisting process. Among them, the limiting base plate 21 and the limiting mounting seat 22 are used as the limiting mounting structures on the two groups of support frames 1, so as to respectively provide installation support for the two groups of limiting claws 23. The limiting claw 23 is used as an adjustable limiting structure on the support frame 1. The installation angle of the limiting claw 23 can be adjusted by adjusting the angle between the limiting claw 23 and the limiting base plate 21 or the limiting mounting seat 22, so as to limit hoisted objects with different structures. The schematic diagram of the cooperation between the limiting mechanism of the present utility model and the hoisting bracket is as Figure 4 shown.

[0033] Working principle:

[0034] When a hoisting operation needs to be carried out on a hoisted object, select the corresponding hoisting method according to the hoisting requirements of the object. Linear hoisting can be achieved through the hoisting assembly, or horizontal hoisting can be achieved by the cooperation of the moving mechanism and the hoisting bracket. Then, adjust the installation angle of the limit claw 23 according to the shape and specifications of the hoisted object. The hoisting cable is guided by the protection guide wheel 11 and is successively arranged around the outside of one set of protection rotating wheels 15, the tensioning rotating wheel 16 and the other set of protection rotating wheels 15, and then bypasses the locking rotating wheel 18 and binds the hoisted object. During the hoisting process, the tensioning state of the hoisting cable can be adjusted by adjusting the distance between the tensioning rotating wheel 16 and the protection rotating wheel 15, and the cooperation state between the locking teeth 20 and the locking gear 19 can be changed to make them engage or disengage with each other to lock or unlock the hoisting cable. During the hoisting process, the limiting mechanism limits the hoisted object to prevent the hoisted object from moving around, improving the hoisting stability.

[0035] The beneficial effects of the present utility model are as follows: It is provided with a moving mechanism, which can provide stable moving support for the hoisting bracket, and the hoisting bracket has a hoisting structure to meet the hoisting requirements of the equipment. It is provided with a protection mechanism, which can stably tension the rope and can lock the hoisting wheel set during the hoisting process to avoid the loosening of the cable. The hoisting stability is strong, the protection effect is strong, and the reliability is good. It is provided with a limiting mechanism to prevent the cable from moving relative to the hoisted object, causing the vibration of the hoisted object and the hoisting equipment, improving the hoisting safety, and can avoid the sharp edges of the hoisted object from damaging the cable and causing the phenomenon of broken cable, eliminating potential safety hazards.

[0036] The above has described in detail an embodiment of the present utility model, but the content is only the preferred embodiment of the present utility model and cannot be considered as limiting the scope of implementation of the present utility model. All equivalent changes and improvements made according to the scope of the application of the present utility model should still fall within the scope covered by the patent of the present utility model.

Claims

1. A rope slip protection device for a hoisting device, comprising a hoisting bracket, the hoisting bracket being arranged on the hoisting device, characterized in that: It also includes a moving mechanism for providing mobile support for the lifting bracket, a protective mechanism for protecting the slipping rope, and a limiting mechanism for limiting the lifting object. The moving mechanism is located at the lower part of the lifting bracket, the protective mechanism is arranged on the inner side of the lifting bracket, and the limiting mechanism is installed on the side of the lifting bracket.

2. A rope slip protection device for hoisting equipment according to claim 1, characterized in that: The hanging bracket comprises a support frame (1), a mounting crossbeam (2), a connecting rod (3) and a hanging assembly, wherein the support frame (1) is provided with two groups, and the two groups of the support frames (1) are arranged side by side and spaced apart, the mounting crossbeam (2) is provided with two groups, and the two groups of the mounting crossbeam (2) are arranged side by side and spaced apart on the upper inner sides of the two groups of the support frames (1), and the two ends thereof are respectively fixedly connected to the two groups of the support frames (1), the connecting rod (3) is provided with two groups, and the two groups of the connecting rod (3) are symmetrically arranged on both sides of the lower parts of the two groups of the support frames (1), and the two ends thereof are respectively fixedly connected to the two groups of the support frames (1), and the hanging assembly is arranged on the upper inner sides of the two groups of the mounting crossbeam (2).

3. A rope slip protection device for hoisting equipment according to claim 2, characterized in that: The lifting assembly comprises a lifting side frame (4), a lifting base (5) and a lifting support rod (6). The lifting side frame (4) is provided with two groups. The two groups of the lifting side frames (4) are respectively arranged at the middle of the upper ends of the two groups of the mounting cross beams (2) and are fixedly connected to the mounting cross beams (2). The lifting side frame (4) is a V-shaped side frame structure. The lifting base (5) is arranged at the upper ends of the two groups of the lifting side frames (4) and is fixedly connected to the two groups of the lifting side frames (4). The lifting support rod (6) is arranged at the lower parts of the two groups of the lifting bases (5) and passes through the lifting bases (5) and is plugged into the lifting bases (5). The lifting support rod (6) is clamped with the lifting base (5) through a mounting plate.

4. A rope slip protection device for hoisting equipment according to claim 3, characterized in that: It also includes a hanging spring (7), which is arranged on the upper part of the hanging support rod (6) and is sleeved with the hanging support rod (6), the upper end of the hanging spring (7) is in contact with the hanging base (5), and the lower end of the hanging spring (7) is in contact with the hanging support rod (6) via a latch.

5. A rope slip protection device for hoisting equipment according to claim 4, characterized in that: The moving mechanism comprises a moving base (8), a moving shaft (9) and a moving roller (10); the moving base (8) is arranged at the lower part of one end of the support frame (1) and is fixedly connected to the support frame (1) via a mounting plate; the moving shaft (9) is provided with two groups, the two groups of moving shafts (9) are symmetrically arranged at the inner sides of both ends of the moving base (8) and penetrate the moving base (8) and are fixedly connected to the moving base (8); the moving roller (10) is provided with two groups, the two groups of moving rollers (10) are respectively arranged at the inner ends of the two groups of moving shafts (9) and are rotatably connected to the corresponding moving shafts (9) via bearings.

6. A rope slip protection device for hoisting equipment according to claim 5, characterized in that: Four groups of moving mechanisms are provided, and the four groups of moving mechanisms are respectively arranged at two ends of the lower part of the two groups of support frames (1).

7. A rope slip protection device for hoisting equipment according to claim 6, characterized in that: The protection mechanism comprises a protection guide wheel (11), a tensioning assembly and a locking assembly. The protection guide wheel (11) is provided with two groups. The two groups of protection guide wheels (11) are arranged side by side and spaced apart inside the two groups of mounting beams (2) and are rotatably connected to the mounting beams (2) through mounting seats. A rope slide is provided around the wheel of the protection guide wheel (11). The tensioning assembly is arranged at the lower part of the two groups of mounting beams (2). The locking assembly is arranged on the side of one group of mounting beams (2) corresponding to the tensioning assembly.

8. A rope slip protection device for hoisting equipment according to claim 7, characterized in that: The tensioning assembly comprises a tensioning bracket (12), a tensioning base (13), a tensioning cylinder (14), a protective wheel (15) and a tensioning wheel (16); the tensioning bracket (12) is arranged at the bottom of two groups of the mounting beams (2) and is fixedly connected to the mounting beams (2) via a mounting plate; the tensioning base (13) is provided with two groups, the two groups of the tensioning base (13) are respectively arranged at the lower part of the two ends of the tensioning bracket (12) and are fixedly connected to the tensioning bracket (12); a connecting frame is provided between the two groups of the tensioning base (13); the tensioning cylinder (14) is arranged on one side of one group of the tensioning base (13) The protective rotating wheel (15) is fixedly connected to the corresponding tensioning base (13) through a connecting frame. Two groups of protective rotating wheels (15) are arranged in parallel and spaced apart on a side of the tensioning base (13) away from the tensioning cylinder (14) and are rotatably connected to the corresponding tensioning base (13) through the connecting frame. The tensioning rotating wheel (16) is arranged at the output end of the tensioning cylinder (14) and is rotatably connected to the output end of the tensioning cylinder (14) through a mounting seat. The tensioning rotating wheel (16) is slidably connected to the connecting frame through a mounting seat. The tensioning rotating wheel (16) is arranged correspondingly to the two groups of protective rotating wheels (15).

9. A rope slip protection device for hoisting equipment according to claim 8, characterized in that: The locking assembly comprises a locking mounting plate (17), a locking rotating wheel (18), a locking gear (19) and a locking latch (20); the locking mounting plate (17) is arranged on the inner side of the middle part of one group of the supporting frames (1) corresponding to the protection rotating wheel (15) and is fixedly connected to the corresponding supporting frame (1); the locking rotating wheel (18) is arranged on one side of one group of the mounting cross beams (2) corresponding to the locking mounting plate (17) and is rotatably connected to the corresponding mounting cross beam (2); the locking gear (19) is arranged on a side of the locking rotating wheel (18) away from the mounting cross beam (2) and is fixedly connected to the locking rotating wheel (18); the locking gear (19) is rotatably connected to the locking mounting plate (17); the locking latch (20) is arranged on the lower inner part of one group of the supporting frames (1) corresponding to the locking gear (19) and is fixedly connected to the corresponding supporting frame (1); and the locking latch (20) is engaged with the locking gear (19).

10. A rope slip protection device for hoisting equipment according to claim 9, characterized in that: The limiting mechanism comprises a limiting substrate (21), a limiting mounting seat (22) and a limiting claw (23); the limiting substrate (21) is arranged at the end of one group of the mounting beams (2) and is fixedly connected to the corresponding mounting beam (2); the limiting substrate (21) is located on the outside of the corresponding support frame (1); the limiting mounting seat (22) is arranged on the outside of the middle part of the support frame (1) away from the limiting substrate (21) and is fixedly connected to the support frame (1); two groups of limiting claws (23) are provided; the two groups of limiting claws (23) are respectively arranged at one end of the limiting substrate (21) and the limiting mounting seat (22) away from the corresponding support frame (1) and are fixedly connected to the corresponding limiting substrate (21) or the limiting mounting seat (22) through a latch.

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