Anti-load hook device for tower crane

Abstract

The utility model relates to tower crane field especially uses a kind of prevent loading lifting hook device for tower crane, including lifting hook body;Still including installation support, driving motor, driving gear, driven gear, I -beam tube, adjusting assembly and limit seat, the bottom surface left side position of lifting hook body is provided with installation support, the inner surface bottom of installation support is provided with driving motor;The utility model can outwardly prop open certain distance to the lifting rope of hoisting object by setting I -beam tube and limit seat, to reduce the torsion of lifting rope when hoisting, and by setting driving motor, its output end will drive driving gear to rotate when operating, driving gear can drive the rotation of driven gear meshed with it when rotating, driven gear can drive the rotation of bottom I -beam tube when rotating, to drive limit seat to rotate, to provide an acting force opposite to the rotation of lifting rope, to avoid the rotation of lifting rope.

Description

Technical Field

[0001] This utility model relates to the field of tower cranes, and in particular to an anti-load hook device for tower cranes. Background Technology

[0002] Tower cranes, also known as tower hoists, originated in Western Europe. They are rotating cranes with their booms mounted on the upper part of a tall tower. They have a large working space and are mainly used for the vertical and horizontal transport of materials and the installation of building components in building construction. They consist of three parts: a metal structure, a working mechanism, and an electrical system. The metal structure includes the tower body, boom, and base. The working mechanism has four parts: hoisting, luffing, slewing, and traveling. The electrical system includes motors, controllers, distribution cabinets, connecting lines, signal and lighting devices, etc.

[0003] Existing tower crane anti-load hook devices do not have an external support structure for the lifting ropes. When the two lifting ropes are close together, the object may rotate due to factors such as wind force and the weight of the object during lifting, causing the lifting ropes to twist.

[0004] Therefore, to address the problem that existing anti-load hook devices for tower cranes lack an external support structure for the lifting rope, leading to the object rotating and the lifting rope twisting due to wind force and the object's own weight during lifting, an anti-load hook device for tower cranes can be designed. By incorporating an I-beam steel pipe and a limit seat, the lifting rope of the object being lifted can be stretched outward by a certain distance, thereby reducing the twisting of the lifting rope during lifting. Furthermore, by incorporating a drive motor, its output end drives the drive gear to rotate during operation. The drive gear, in turn, drives the driven gear meshing with it to rotate. The driven gear, in turn, drives the bottom I-beam steel pipe to rotate, thereby driving the limit seat to rotate. This provides a force in the opposite direction to the rotation of the lifting rope, thus preventing the lifting rope from rotating. Utility Model Content

[0005] To overcome the problem that existing tower crane anti-load hook devices do not have an external support structure for the lifting rope, which causes the object to rotate and the lifting rope to twist due to factors such as wind force and the object's own weight during lifting.

[0006] The technical solution of this utility model is as follows: a tower crane anti-load hook device, including a hook body; it also includes a mounting bracket, a drive motor, a drive gear, a driven gear, an I-beam steel pipe, an adjusting component, and a limiting seat. The mounting bracket is provided on the left side of the bottom surface of the hook body. The drive motor is provided on the bottom inner surface of the mounting bracket. The drive gear is provided at the output end of the drive motor. The driven gear is rotatably connected to the bottom surface of the hook body at the side of the drive gear. The drive gear and the driven gear mesh. The I-beam steel pipe is provided on the bottom surface of the driven gear. The adjusting component is provided at both the front and rear ends of the I-beam steel pipe. The limiting seat is provided at the end of the adjusting component away from the I-beam steel pipe.

[0007] Preferably, by setting up an I-beam steel pipe and a limiting seat, the hoisting rope of the object being hoisted can be stretched outward by a certain distance, thereby reducing the twisting of the hoisting rope during hoisting. Furthermore, by setting up a drive motor, its output end will drive the drive gear to rotate during operation. When the drive gear rotates, it can drive the driven gear meshing with it to rotate. When the driven gear rotates, it can drive the bottom I-beam steel pipe to rotate, thereby driving the limiting seat to rotate. This provides a force in the opposite direction to the rotation of the hoisting rope, thereby preventing the hoisting rope from rotating. This solves the problem that existing tower crane anti-load hook devices do not have an external support structure for the hoisting rope, which leads to the object rotating due to wind force, the weight of the object itself, etc., causing the hoisting rope to twist.

[0008] Preferably, the adjustment assembly includes an adjustment rod and a damping spring; the adjustment rod is slidably connected to both the front and rear surfaces of the I-beam, and two symmetrical damping springs are provided at the end of the adjustment rod away from the I-beam, and the end of the damping spring away from the I-beam is connected to the limit seat.

[0009] Preferably, the adjusting assembly also includes fastening bolts; symmetrical fastening bolts are threaded through the upper and lower surfaces of the I-beam, and the ends of the fastening bolts are in contact with the adjusting rod.

[0010] Preferably, a base plate is welded to the upper part of the outer surface of the mounting bracket, the top surface of the base plate is welded to the bottom surface of the hook body, and support blocks are provided on both the left and right sides of the bottom surface of the base plate.

[0011] Preferably, a rotating shaft is rotatably connected to the upper part of the outer surface of the hook body. Blocks are connected to the front and rear sides of the outer surface of the rotating shaft. A return spring is provided on the outer surface of the rotating shaft between the blocks. One end of the return spring is in contact with the block, and the other end of the return spring is in contact with the hook body.

[0012] Preferably, the end of the stop block away from the pivot is provided with a slot, and the outer surface of the hook body is provided with a positioning groove near the tip.

[0013] Preferably, the bottom of the inner surface of the hook body is provided with an anti-slip pad, which is made of rubber.

[0014] The beneficial effects of this utility model are: 1. By setting up an I-beam steel pipe and a limit seat, the hoisting rope can be stretched outward by a certain distance, thereby reducing the twisting of the hoisting rope during hoisting. Furthermore, by setting up a drive motor, its output end will drive the drive gear to rotate during operation. When the drive gear rotates, it can drive the driven gear meshing with it to rotate. When the driven gear rotates, it can drive the bottom I-beam steel pipe to rotate, thereby driving the limit seat to rotate. This provides a force in the opposite direction to the rotation of the hoisting rope, thus preventing the hoisting rope from rotating. This solves the problem that the existing anti-load hook device for tower cranes does not have an external support structure for the hoisting rope, which leads to the object rotating due to wind force, the weight of the object, etc., causing the hoisting rope to twist. Attached Figure Description

[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of an anti-load hook device for a tower crane according to this utility model. Figure 2 The diagram shown is a three-dimensional structural schematic of the drive gear of an anti-load hook device for a tower crane according to this utility model. Figure 3 The diagram shown is a three-dimensional structural schematic of an anti-load hook device adjustment component for a tower crane according to this utility model. Figure 4 The diagram shown is a three-dimensional structural schematic of the return spring of the anti-load hook device for a tower crane according to this utility model. Figure 5 The diagram shown is a three-dimensional structural schematic of the anti-load hook device stop block for a tower crane according to this utility model.

[0016] Explanation of reference numerals in the attached drawings: 1. Hook body; 2. Mounting bracket; 3. Drive motor; 4. Drive gear; 5. Driven gear; 6. I-beam steel pipe; 71. Adjusting rod; 72. Damping spring; 73. Fastening bolt; 8. Limit seat; 9. Base plate; 10. Support block; 11. Rotating shaft; 12. Stop block; 13. Return spring; 14. Slot; 15. Positioning slot; 16. Anti-slip pad. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Please see Figures 1-5This utility model provides an embodiment: an anti-load hook device for tower cranes, including a hook body 1; it also includes a mounting bracket 2, a drive motor 3, a drive gear 4, a driven gear 5, an I-beam steel pipe 6, an adjusting assembly, and a limiting seat 8. The mounting bracket 2 is located on the left side of the bottom surface of the hook body 1. The drive motor 3 is located at the bottom of the inner surface of the mounting bracket 2. The drive gear 4 is located at the output end of the drive motor 3. The driven gear 5 is rotatably connected to the bottom surface of the hook body 1 at the side of the drive gear 4. The drive gear 4 and the driven gear 5 mesh. The bottom surface of the driven gear 5 is provided with an I-beam steel pipe 6. Adjustment components are provided at both ends of the pipe 6. A limit seat 8 is provided at the end of the adjustment component away from the I-beam pipe 6. By setting the I-beam pipe 6 and the limit seat 8, the hoisting rope of the hoisted object can be spread outward by a certain distance, thereby reducing the twisting of the hoisting rope during hoisting. In addition, by setting the drive motor 3, its output end will drive the drive gear 4 to rotate during operation. When the drive gear 4 rotates, it can drive the driven gear 5 meshing with it to rotate. When the driven gear 5 rotates, it can drive the bottom I-beam pipe 6 to rotate, thereby driving the limit seat 8 to rotate, thus providing a force opposite to the rotation of the hoisting rope, thereby preventing the hoisting rope from rotating.

[0019] Please see Figures 1-4 In this embodiment, the adjustment assembly includes an adjustment rod 71 and damping springs 72. The adjustment rod 71 is slidably inserted into both the front and rear surfaces of the I-beam 6. Two symmetrical damping springs 72 are provided at the end of the adjustment rod 71 away from the I-beam 6. The end of the damping springs 72 away from the I-beam 6 is connected to the limiting seat 8. By setting the adjustment rod 71, the distance between the two limiting seats 8 can be adjusted, thereby adjusting the spreading distance. Furthermore, by setting the damping springs 72, a certain buffering effect can be provided, thereby improving the stability of the hoisting. The adjustment assembly also includes fastening bolts 73. Threaded connections are passed through both the upper and lower surfaces of the I-beam 6. Symmetrical fastening bolts 73 are attached, with the ends of the fastening bolts 73 engaging with the adjusting rod 71. By setting the fastening bolts 73, after adjusting the extension distance of the adjusting rod 71, the fastening bolts 73 can be tightened to fix the position of the adjusting rod 71 and prevent loosening during use. A base plate 9 is welded to the upper end of the outer surface of the mounting bracket 2. The top surface of the base plate 9 is welded to the bottom surface of the hook body 1. Support blocks 10 are set on both the left and right sides of the bottom surface of the base plate 9. By setting the base plate 9 and the support blocks 10, the fixing strength between the mounting bracket 2 and the hook body 1 can be improved, thereby improving stability.

[0020] Please see Figures 1-5In this embodiment, a rotating shaft 11 is rotatably connected to the upper part of the outer surface of the hook body 1. Stops 12 are connected to the front and rear sides of the outer surface of the rotating shaft 11. A return spring 13 is disposed on the outer surface of the rotating shaft 11 between the stops 12. One end of the return spring 13 is in contact with the stop 12, and the other end is in contact with the hook body 1. By setting the stops 12, the phenomenon of hook detachment during hoisting can be avoided. Furthermore, when it is necessary to remove the hoisting rope, simply pressing the stops 12 will remove the rope, and releasing the hand will return the hook to its original position. The spring 13 will drive the stop block 12 to automatically reset. The end of the stop block 12 away from the rotating shaft 11 has a slot 14. The outer surface of the hook body 1 has a positioning groove 15 near the tip. By setting the slot 14 and the positioning groove 15, the position of the stop block 12 can be restricted to prevent the end of the stop block 12 from sliding out of the hook body 1. The bottom of the inner surface of the hook body 1 is provided with an anti-slip pad 16. The anti-slip pad 16 is made of rubber. By setting the anti-slip pad 16, the friction between it and the lifting rope can be increased, thereby improving the stability of the lifting.

[0021] During operation, the distance between the two limit seats 8 can be adjusted by setting the adjusting rod 71, thereby adjusting the spreading distance. The damping spring 72 provides a certain buffering effect, thereby improving the stability of the hoisting. After adjusting the extension distance of the adjusting rod 71, the fastening bolt 73 can be tightened to fix the position of the adjusting rod 71 and prevent loosening during use. The base plate 9 and the support block 10 can improve the fixing strength between the mounting bracket 2 and the hook body 1, thereby improving stability. The stop block 12 can prevent the hook from disengaging during hoisting. When it is necessary to remove the hoisting rope, simply press the stop block 12 to remove the hoisting rope. When you release your hand, the return spring 13 will drive the stop block 12 to automatically return to its original position. The slot 14 and the positioning slot 15 can restrict the position of the stop block 12 to prevent the end of the stop block 12 from slipping out of the hook body 1. The anti-slip pad 16 can increase the friction between the stop block 12 and the hoisting rope, thereby improving the stability of the hoisting.

[0022] Through the above steps, by setting the I-beam steel pipe 6 and the limiting seat 8, the hoisting rope of the hoisted object can be stretched outward by a certain distance, thereby reducing the twisting of the hoisting rope during hoisting. Furthermore, by setting the drive motor 3, its output end will drive the drive gear 4 to rotate during operation. When the drive gear 4 rotates, it can drive the driven gear 5 meshing with it to rotate. When the driven gear 5 rotates, it can drive the bottom I-beam steel pipe 6 to rotate, thereby driving the limiting seat 8 to rotate. This provides a force opposite to the rotation of the hoisting rope, thereby preventing the hoisting rope from rotating. This solves the problem that the existing anti-load hook device for tower cranes does not have an external support structure for the hoisting rope, which causes the object to rotate due to wind force, the weight of the object, etc., during hoisting, resulting in the twisting of the hoisting rope.

Claims

1. A device for preventing the loading of a hook of a tower crane, comprising a hook body (1); characterized in that: It also includes a mounting bracket (2), a drive motor (3), a drive gear (4), a driven gear (5), an I-beam (6), an adjustment assembly, and a limit seat (8). The mounting bracket (2) is located on the left side of the bottom surface of the hook body (1). The drive motor (3) is located at the bottom of the inner surface of the mounting bracket (2). The drive gear (4) is located at the output end of the drive motor (3). The driven gear (5) is rotatably connected to the bottom surface of the hook body (1) at the side position of the drive gear (4). The drive gear (4) meshes with the driven gear (5). The I-beam (6) is located on the bottom surface of the driven gear (5). The adjustment assembly is located at both ends of the I-beam (6). The limit seat (8) is located at the end of the adjustment assembly away from the I-beam (6).

2. A load preventing hook device for a tower crane according to claim 1, characterized in that: The adjustment assembly includes an adjustment rod (71) and a damping spring (72); the adjustment rod (71) is slidably connected to both the front and rear surfaces of the I-beam (6), and two symmetrical damping springs (72) are provided at the end of the adjustment rod (71) away from the I-beam (6), and the end of the damping spring (72) away from the I-beam (6) is connected to the limit seat (8).

3. A load preventing hook device for a tower crane according to claim 2, characterized in that: The adjustment assembly also includes fastening bolts (73); the upper and lower surfaces of the I-beam (6) are threaded with symmetrical fastening bolts (73), and the ends of the fastening bolts (73) are in contact with the adjustment rod (71).

4. The anti-load hook device for a tower crane according to claim 1, characterized in that: The top surface of the mounting bracket (2) is welded with a base plate (9). The top surface of the base plate (9) is welded to the bottom surface of the hook body (1). Support blocks (10) are provided on both the left and right sides of the bottom surface of the base plate (9).

5. The anti-load hook device for a tower crane according to claim 1, characterized in that: A rotating shaft (11) is rotatably connected to the upper part of the outer surface of the hook body (1). Blocks (12) are connected to the front and rear sides of the outer surface of the rotating shaft (11). A return spring (13) is provided on the outer surface of the rotating shaft (11) between the blocks (12). One end of the return spring (13) is in contact with the block (12), and the other end of the return spring (13) is in contact with the hook body (1).

6. The anti-load hook device for a tower crane according to claim 5, characterized in that: The end of the stop block (12) away from the rotating shaft (11) is provided with a slot (14), and the outer surface of the hook body (1) near the tip is provided with a positioning slot (15).

7. The anti-load hook device for a tower crane according to claim 1, characterized in that: The bottom of the inner surface of the hook body (1) is provided with an anti-slip pad (16), which is made of rubber.

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