Rope breakage protector for tower crane hook

Abstract

The utility model discloses a tower crane hook broken rope protector which comprises a box body, two through holes are formed in the top of the box body, the same steel wire rope is arranged in the two through holes in a sleeved mode, a transverse groove is formed between the two through holes, a double-shaft motor is fixedly arranged in the transverse groove, and first lead screws are fixedly arranged at the two ends of the double-shaft motor. The first lead screw is in threaded connection with an extrusion block, a second lead screw is rotationally arranged in the box body, the two sides of the second lead screw are in threaded connection with moving blocks, the moving blocks are in sliding connection with the box body, a connecting rod is fixedly arranged on one side of each moving block, a guide wheel is rotationally arranged on each connecting rod, and the bottom of the steel wire rope is arranged on the guide wheel in a sleeving mode. The first lead screw is fixedly sleeved with a first belt wheel, the second lead screw is fixedly sleeved with a second belt wheel, the second belt wheel and the first belt wheel are sleeved with the same belt, a hook is arranged at the bottom of the box body, and a clamping assembly is arranged in the box body. The friction force between the steel wire rope and the box body is increased, so that the steel wire rope is not easy to slide.

Description

Technical Field

[0001] The utility model relates to the technical field of tower cranes, in particular to a tower crane large hook broken rope protector. Background Art

[0002] A tower crane is also called a tower crane. It is a rotating crane with a boom mounted on the top of a tall tower. It has a large working space and is mainly used for vertical and horizontal transportation of materials and installation of building components in housing construction. When transporting materials, a tower crane hook is required to lift the materials. The tower crane hook includes a hook body, and the hook body has left and right pulleys connected to the wire rope.

[0003] The Chinese patent document with the publication number CN217076746U discloses a box body, a rotating shaft is fixedly arranged at the bottom of the box body, a hook is fixedly arranged at the bottom of the rotating shaft, two through holes are opened at the top of the box body, a same steel wire rope is slidingly sleeved in the two through holes, a same cavity is opened between the two through holes, a bidirectional motor is fixedly arranged in the cavity, transverse screw rods are fixedly arranged at both ends of the bidirectional motor, the outer sides of the two transverse screw rods are provided with external threads rotating in opposite directions, the outer sides of the two transverse screw rods are threadedly sleeved with extrusion plates, a drive box is fixedly arranged at the front and rear sides of the box body, and a level is fixedly arranged at the top of the drive box. Through the cooperation of the bidirectional motor, the transverse screw rod, the extrusion plate and the through hole, the steel wire rope can be squeezed and fixed again.

[0004] The disadvantage of the above disclosed solution is that: the extrusion plate cooperates with the through hole to extrude the steel wire rope, and the friction between the steel wire rope and the box body is small, so the steel wire rope is prone to slide, which poses a safety hazard. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a tower crane hook broken rope protector, which increases the friction between the wire rope and the box body, makes it difficult for the wire rope to slide, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tower crane hook broken rope protector, comprising a box body, the top of the box body is provided with two through holes, the two through holes are sleeved with the same wire rope, a transverse groove is provided between the two through holes, a double-axis motor is fixedly provided in the transverse groove, both ends of the double-axis motor are fixedly provided with a first screw rod, the threads of the two first screw rods are in opposite directions, one end of the first screw rod away from the double-axis motor is rotatably connected to the box body, an extrusion block is threadedly connected to the first screw rod, a second screw rod is rotatably provided in the box body, and the second screw rod The threads on both sides rotate in opposite directions, and moving blocks are threadedly connected on both sides of the second screw rod. The moving block is slidably connected to the box body, a connecting rod is fixedly provided on one side of the moving block, a guide wheel is rotatably provided on the connecting rod, and the bottom of the wire rope is sleeved on the guide wheel, a first pulley is fixedly provided on one of the first screw rods, a second pulley is fixedly provided on the middle part of the second screw rod, the second pulley and the first pulley are sleeved with the same belt, a hook is provided at the bottom of the box body, a spirit level is fixedly provided on the top of the box body, and a clamping assembly for clamping the wire rope is provided in the box body.

[0007] Furthermore, the clamping assembly includes a connecting plate, which is fixedly arranged inside the box body, a cylinder is symmetrically fixedly arranged on the top of the connecting plate, a movable plate is fixedly arranged on the output end of the cylinder, two symmetrically arranged clamping rods are slidably arranged on the movable plate, and the two clamping rods clamp the wire rope, a symmetrically arranged support block is fixedly arranged on the top of the connecting plate, the two clamping rods are located between the two support blocks, and an articulated rod is hingedly arranged on one end of the clamping rod close to the cylinder, and the other end of the articulated rod is hingedly connected to the corresponding support block.

[0008] Furthermore, a rotating shaft is rotatably arranged at the bottom of the box, and the bottom of the rotating shaft is fixedly connected to the hook.

[0009] Furthermore, the clamping rod includes a sliding rod, one end of which is slidably mounted on the movable plate, the top of one end of the sliding rod is hingedly connected to the hinge rod, and the other end of the sliding rod is fixedly provided with a clamping plate, which is an arc-shaped structure adapted to the steel wire rope.

[0010] Furthermore, an anti-slip pad is fixedly provided on the inner side of the clamping plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] A first pulley is provided through a fixed sleeve on the first screw rod, a second pulley is provided through a fixed sleeve in the middle of the second screw rod, and the same belt is provided on the second pulley and the first pulley. The double-axis motor drives the first screw rod to rotate, and the first screw rod drives the two extrusion blocks to move away from each other, and the two extrusion blocks respectively cooperate with the corresponding fixed through holes to extrude and fix the wire rope. The rotation of the first screw rod also drives the first pulley to rotate, the first pulley drives the second pulley to rotate through the belt, the second pulley drives the second screw rod to rotate, the second screw rod drives the two moving blocks to move away from each other, the two moving blocks respectively drive the two guide wheels to move away from each other, and the two guide wheels drive the wire rope to contact the inner wall of the box body, so that the guide wheels cooperate with the inner wall of the box body to further extrude and fix the wire rope. When the wire rope breaks and causes the box body to tilt, the extrusion position of the wire rope is increased, thereby increasing the friction between the wire rope and the box body, the wire rope is not easy to slide, and the material is prevented from falling, reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0015] Figure 3 A cross-sectional view of the structure of the utility model from another perspective;

[0016] Figure 4 It is a three-dimensional diagram of the structural clamping assembly of the utility model.

[0017] In the figure: 1. box; 2. level; 3. wire rope; 4. double-axis motor; 5. first screw rod; 6. extrusion block; 7. first pulley; 8. belt; 9. connecting plate; 10. cylinder; 11. second pulley; 12. second screw rod; 13. moving block; 14. connecting rod; 15. guide wheel; 16. moving plate; 17. clamping rod; 18. hinged rod; 19. rotating shaft; 20. hook. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-Figure 4The utility model provides a technical solution: a tower crane hook broken rope protector, comprising a box body 1, a level 2 is fixedly installed on the top of the box body 1, a rotating shaft 19 is rotatably installed on the bottom of the box body 1, and a hook 20 is fixedly installed on the bottom of the rotating shaft 19. Two through holes are provided on the top of the box body 1, and the same steel wire rope 3 is sleeved in the two through holes. A transverse groove is provided between the two through holes, and the top of the transverse groove is connected to the outside of the box body 1 for easy maintenance. A double-axis motor 4 is fixedly installed in the transverse groove, and first screw rods 5 are fixedly installed at both ends of the double-axis motor 4, and the threads of the two first screw rods 5 are opposite. One end of the first screw rod 5 away from the double-axis motor 4 is rotatably installed with the box body 1, and an extrusion block 6 is threadedly connected to the first screw rod 5, and the extrusion block 6 cooperates with the through hole to extrude the steel wire rope 3, thereby increasing the friction between the steel wire rope 3 and the through hole.

[0020] A second screw rod 12 is rotatably installed in the box body 1. The second screw rod 12 is arranged horizontally. The threads on both sides of the second screw rod 12 are in opposite directions. Both sides of the second screw rod 12 are threadedly connected with moving blocks 13. The moving blocks 13 are installed in a sliding manner with the box body 1. A connecting rod 14 is fixedly installed on one side of the moving block 13. A guide wheel 15 is rotatably installed on the connecting rod 14. The bottom of the wire rope 3 is sleeved on the outer periphery of the two guide wheels 15. A first pulley 7 is fixedly sleeved on the outer periphery of one of the first screw rods 5, and a receiving groove for accommodating the first pulley 7 is provided on the box body 1. A second pulley 11 is fixedly sleeved in the middle of the second screw rod 12. The second pulley 11 and the first pulley 7 are sleeved with the same belt 8. A through hole is provided at the bottom of the transverse groove to allow the belt 8 to pass through.

[0021] A clamping assembly for clamping the steel wire rope 3 is installed in the box body 1. The clamping assembly includes a connecting plate 9, which is fixedly installed inside the box body 1 and is located above the guide wheel 15. A through hole is provided on the connecting plate 9 to allow the belt 8 to pass through. A cylinder 10 is symmetrically fixedly installed on the top of the connecting plate 9, and a moving plate 16 is fixedly installed on the output end of the cylinder 10. Two symmetrically arranged clamping rods 17 are slidably installed on the moving plate 16, and the two clamping rods 17 clamp the steel wire rope 3.

[0022] The top of the connecting plate 9 is fixedly mounted with symmetrically arranged support blocks, and the two clamping rods 17 are located between the two support blocks. The clamping rod 17 is hingedly mounted with an articulated rod 18 at one end close to the cylinder 10, and the other end of the articulated rod 18 is hingedly mounted with the corresponding support block, and the articulated rod 18 is arranged obliquely.

[0023] The clamping rod 17 includes a sliding rod, one end of which is slidably sleeved on the moving plate 16, and the top of the sliding rod near the cylinder 10 is hingedly mounted with the hinge rod 18. A clamping plate is fixedly mounted on the other end of the sliding rod, and the clamping plate is an arc-shaped structure adapted to the steel wire rope 3. An anti-slip pad is fixedly mounted on the inner side of the clamping plate to increase the friction between the clamping plate and the steel wire rope 3.

[0024] The working principle of a tower crane hook broken rope protector provided by the utility model is as follows:

[0025] When the steel wire rope 3 breaks, the box 1 will tilt, and the level can be monitored by the level meter 2. When tilting occurs, the dual-axis motor 4 and the cylinder 10 will be automatically turned on. The cylinder 10 drives the moving plate 16 to move toward the direction of the steel wire rope 3, and the two clamping rods 17 are respectively approached to each other through the corresponding hinge rods 18, so that the clamping plates on the two clamping rods 17 are close to each other to clamp and fix the steel wire rope 3, so as to prevent the objects from falling and causing safety hazards.

[0026] The double-axis motor 4 drives the first screw rod 5 to rotate, and the first screw rod 5 drives the two extrusion blocks 6 to move away from each other. The two extrusion blocks 6 respectively cooperate with the corresponding fixing through holes to extrude and fix the steel wire rope 3.

[0027] The rotation of the first screw rod 5 also drives the first pulley 7 to rotate, the first pulley 7 drives the second pulley 11 to rotate through the belt 8, the second pulley 11 drives the second screw rod 12 to rotate, the second screw rod 12 drives the two moving blocks 13 to move away from each other, the two moving blocks 13 respectively drive the two guide wheels 15 to move away from each other, the two guide wheels 15 drive the wire rope 3 to contact the inner wall of the box body 1, so that the guide wheels 15 cooperate with the inner wall of the box body 1 to further squeeze and fix the wire rope 3, increase the squeezing position of the wire rope 3, so that the wire rope 3 is not easy to slide, reducing the safety hazard.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tower crane hook broken rope protector, comprising a box (1), characterized in that: The top of the box body (1) is provided with two through holes, the same steel wire rope (3) is sleeved in the two through holes, a transverse groove is provided between the two through holes, a double-axis motor (4) is fixedly provided in the transverse groove, first screw rods (5) are fixedly provided at both ends of the double-axis motor (4), the threads of the two first screw rods (5) are in opposite directions, one end of the first screw rod (5) away from the double-axis motor (4) is rotatably connected to the box body (1), an extrusion block (6) is threadedly connected to the first screw rod (5), a second screw rod (12) is rotatably provided in the box body (1), the threads of the two sides of the second screw rod (12) are in opposite directions, and the two sides of the second screw rod (12) are threadedly connected to a moving block (13), and the moving block (13) is slidably connected to the box body (1), a connecting rod (14) is fixedly provided on one side of the moving block (13), a guide wheel (15) is rotatably provided on the connecting rod (14), the bottom of the wire rope (3) is sleeved on the guide wheel (15), a first pulley (7) is fixedly sleeved on one of the first screw rods (5), a second pulley (11) is fixedly sleeved on the middle part of the second screw rod (12), the second pulley (11) and the first pulley (7) are sleeved with the same belt (8), a hook (20) is provided at the bottom of the box body (1), a level (2) is fixedly provided on the top of the box body (1), and a clamping assembly for clamping the wire rope (3) is provided in the box body (1).

2. The tower crane hook broken rope protector according to claim 1 is characterized in that: The clamping assembly comprises a connecting plate (9), the connecting plate (9) is fixedly arranged inside the box body (1), a cylinder (10) is symmetrically fixedly arranged on the top of the connecting plate (9), a movable plate (16) is fixedly arranged at the output end of the cylinder (10), two symmetrically arranged clamping rods (17) are slidably arranged on the movable plate (16), the two clamping rods (17) clamp the wire rope (3), a symmetrically arranged supporting block is fixedly arranged on the top of the connecting plate (9), the two clamping rods (17) are both located between the two supporting blocks, an articulated rod (18) is hingedly arranged at one end of the clamping rod (17) close to the cylinder (10), and the other end of the articulated rod (18) is hingedly connected to the corresponding supporting block.

3. The tower crane hook broken rope protector according to claim 1 is characterized in that: A rotating shaft (19) is rotatably provided at the bottom of the box body (1), and the bottom of the rotating shaft (19) is fixedly connected to a hook (20).

4. The tower crane hook broken rope protector according to claim 2 is characterized in that: The clamping rod (17) comprises a sliding rod, one end of which is slidably mounted on the movable plate (16), the top of one end of the sliding rod is hingedly connected to the hinge rod (18), and the other end of the sliding rod is fixedly provided with a clamping plate, which is an arc-shaped structure adapted to the steel wire rope (3).

5. The tower crane hook broken rope protector according to claim 4 is characterized in that: An anti-slip pad is fixedly arranged on the inner side of the clamping plate.

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