A hook for a full-rotation tower crane

Abstract

This utility model relates to the field of lifting hook technology, specifically to a lifting hook for a full-slewing tower crane, comprising a hook body, a fixing block, a fixing plate, a rotating shaft, an adjusting reducer, a connecting rod, and a drive motor. The hook body is rotatably connected to the lower end of the fixing block. Two fixing plates are respectively mounted on two opposite sides of the fixing block by mounting bolts. The connecting rod is fixed between the two fixing plates. The rotating shaft passes through the two fixing plates. A cable connection assembly connected to the rotating shaft is mounted on the fixing plate. The adjusting reducer is mounted on the fixing block, with one end connected to the top of the hook body, and the output end of the drive motor connected to the other end of the adjusting reducer. This utility model, through the coordinated work of the fixing block, the rotating shaft, the adjusting reducer, and the drive motor, enables the hook to rotate freely on a horizontal plane and allows for precise control of the rotation angle according to actual needs, greatly improving the flexibility and convenience of lifting operations.

Description

Technical Field

[0001] This utility model relates to the field of lifting hook technology, specifically to a lifting hook for a full-slewing tower crane. Background Technology

[0002] In construction engineering and the hoisting of large components, full-slewing tower cranes are widely used as highly efficient lifting equipment in various construction scenarios. Through their slewing mechanism, tower cranes can rotate at any angle within the horizontal plane, greatly improving the flexibility and coverage of hoisting operations.

[0003] Existing full-rotation tower cranes often have fixed or limited-rotation hook structures during lifting operations, preventing free rotation of the hook while suspended. When slings become entangled or the object's posture needs adjustment during lifting, the fixed hook structure restricts operational flexibility, requiring manual intervention or rotation of the entire machine to complete the task, reducing work efficiency and increasing safety hazards.

[0004] In view of the above, in order to overcome the above technical problems, this utility model designs a lifting hook for a full-slewing tower crane, which solves the above technical problems. Utility Model Content

[0005] The technical objective of this invention is to design a lifting hook for a full-slewing tower crane to improve lifting flexibility and increase work efficiency.

[0006] To achieve the above-mentioned technical objectives, this utility model provides the following technical solution: a lifting hook for a full-slewing tower crane, comprising a hook body, a fixing block, a fixing plate, a rotating shaft, an adjusting reducer, a connecting rod, and a drive motor; The hook body is mounted on the lower end of the fixed block by a rotatable connection. There are two fixed plates, which are respectively mounted on two opposite sides of the fixed block by mounting bolts. The connecting rod is fixed between the two fixed plates. The rotating shaft passes through the two fixed plates and is rotatably connected to the fixed plates. The fixed plates are equipped with rope connecting assemblies connected to the rotating shaft. The adjusting reducer is mounted on the fixed block. One end of the adjusting reducer is connected to the top of the hook body. The drive motor is mounted inside either fixed plate. The output end of the drive motor is poweredly connected to the other end of the adjusting reducer.

[0007] Preferably, it also includes a fixed bushing, which is fixedly installed between two fixed plates, and the rotating shaft is installed on the fixed plate by rotating it inside the fixed bushing.

[0008] Preferably, the cable connection assembly includes a fixed plate mounted on the outer end of the fixed plate, the top of the mounting bolt is located on the outside of the fixed plate, the mounting bolt passes through the fixed plate, a rotating wheel is mounted on the outside of the fixed plate, a drive shaft sleeve is mounted at the center of the rotating wheel, and the drive shaft sleeve is sleeved on the outside of the rotating shaft.

[0009] Preferably, the outer end of the rotor has a concave rotating groove.

[0010] Preferably, a housing is mounted on the fixed plate and covers the outside of the drive shaft sleeve, and the housing has two passage openings.

[0011] Preferably, the two access ports are mirror-distributed along the center line of the fixing plate, both access ports are located on the upper side of the center of the rotating wheel, and the angle between the line connecting the access port and the center of the outer casing and the horizontal line is set to 30 to 60°.

[0012] The beneficial effects of this utility model are as follows: 1. This utility model, through the coordinated operation of the fixing block, rotating shaft, adjusting reducer, and drive motor, enables the hook to rotate freely on a horizontal plane, and allows for precise control of the rotation angle according to actual needs. This greatly improves the flexibility and convenience of lifting operations, avoids the difficulties of rope entanglement and posture adjustment, and significantly enhances the safety and stability of the lifting process. Furthermore, the combination of snap-fit ​​and welding fixing methods not only enhances the structural stability but also facilitates later maintenance and replacement, extending the service life of the equipment.

[0013] 2. This utility model effectively ensures the smooth operation and safety of the rope during hoisting by using the concave rotating groove on the swivel and the protective outer shell; the tight fit between the swivel, the drive bushing, and the fixed bushing ensures the smooth and efficient rotational transmission, improving the power transmission efficiency of the entire hook system; the hook has a compact structure, is easy to install, and is suitable for various complex hoisting environments, greatly meeting the high efficiency and safety requirements of modern construction and large equipment hoisting. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] The above and other aspects of the present invention will now be described by way of example only, with reference to the accompanying drawings, in which: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a schematic diagram of the installation position of the fixing plate of this utility model; Figure 4 This is a schematic diagram of the structure of the rotary wheel of this utility model.

[0016] In the diagram: 1. Hook body; 2. Fixing block; 3. Mounting bolt; 4. Fixing plate; 5. Rotating shaft; 6. Adjusting reducer; 7. Connecting rod; 8. Fixing bushing; 9. Fixing disc; 10. Rotating wheel; 11. Rotating groove; 12. Drive bushing; 13. Housing; 14. Through port; 15. Drive motor. Detailed Implementation

[0017] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0018] like Figures 1 to 4 As shown, a lifting hook for a full-slewing tower crane includes a hook body 1, a fixing block 2, a fixing plate 4, a rotating shaft 5, an adjusting reducer 6, a connecting rod 7, and a drive motor 15; The hook body 1 is mounted on the lower end of the fixed block 2 by a rotatable connection. There are two fixed plates 4, and the two fixed plates 4 are respectively mounted on two opposite sides of the fixed block 2 by mounting bolts 3. The connecting rod 7 is fixed between the two fixed plates 4. The rotating shaft 5 passes through the two fixed plates 4 and is rotatably connected to the fixed plates 4. The fixed plate 4 is equipped with a rope connection assembly connected to the rotating shaft 5. The adjusting reducer 6 is mounted on the fixed block 2. One end of the adjusting reducer 6 is connected to the top of the hook body 1. The drive motor 15 is mounted inside any fixed plate 4. The output end of the drive motor 15 is poweredly connected to the other end of the adjusting reducer 6.

[0019] The hook body 1 serves as the main structural component that bears the lifting load, while the fixing block 2 serves as the core support component of the equipment, used to achieve stable support for the overall structure. The rotating connection between the hook body 1 and the fixing block 2 enables the hook body 1 to rotate. The mounting bolts 3 pass through the fixing plate 4 and are fixed inside the fixing block 2 to ensure its stability during lifting operations.

[0020] The lower end of the fixed plate 4 is connected to the fixed block 2 in a rectangular shape, while the upper end of the fixed plate 4 is connected to the rotating shaft 5 in an arc shape, which helps to match the rotational movement of the rotating shaft 5.

[0021] The drive motor 15 is used to control the rotation of the hook body 1 on the fixed block 2. The adjustable reducer 6 has a reduction gear set inside, which can convert the high-speed rotation power of the drive motor 15 into a low-speed, high-torque output suitable for the rotation of the hook body 1. This not only improves the control accuracy and safety performance of the hook rotation, but also extends the service life of the entire transmission system. The adjustable reducer 6 can meet the precise adjustment requirements of the hook rotation speed and torque of the full-slewing tower crane in complex construction environments.

[0022] The adjustable reducer 6 is installed on the fixed plate 4 by snap-fit ​​or welding, which ensures the tightness of the installation and facilitates later maintenance and replacement.

[0023] It also includes a fixed bushing 8, which is fixedly installed between two fixed plates 4, and the rotating shaft 5 is installed on the fixed plate 4 by rotating it inside the fixed bushing 8.

[0024] The connecting rod 7 and the fixing plate 4 are installed by welding or bolting to improve the strength and durability of the overall structure; the fixing bushing 8 can also be fixedly connected to the fixing plate 4 by welding or bolting, which not only ensures the firmness of the installation, but also facilitates disassembly and maintenance in the future.

[0025] The cable connection assembly includes a fixed plate 9 installed on the outer end of the fixed plate 4, the top of the mounting bolt 3 is located on the outside of the fixed plate 9, the mounting bolt 3 passes through the fixed plate 9, a rotating wheel 10 is installed on the outside of the fixed plate 9, a drive shaft sleeve 12 is installed at the center of the rotating wheel 10, and the drive shaft sleeve 12 is sleeved on the outside of the rotating shaft 5; a rotating groove 11 with an inward concave structure is opened at the outer end of the rotating wheel 10.

[0026] The swivel wheel 10 serves as the direct connection component between this device and the tower crane suspension system. The rope of the tower crane suspension system is sleeved on the rotating groove 11 of the swivel wheel 10. The action of the tower crane suspension system in winding and unwinding the rope can drive this device to move up and down. The rotating groove 11 of the wheel 10 has good guidance and stability, which can effectively guide the rope to move smoothly on the wheel 10. The concave rotating groove 11 increases the contact area between the rope and the wheel 10, preventing the rope from slipping or jumping out of the groove during operation.

[0027] As the direct drive component of the tower crane suspension system, the swivel wheel 10 can move the entire hook structure up and down through the movement of the rope under the driving force of the tower crane suspension system. In order to ensure that the swivel wheels 10 on both sides move at the same speed and thus improve stability, the drive bushing 12 is fastened to the shaft 5, so that the two swivel wheels 10 rotate synchronously. The drive bushing 12 not only connects the swivel wheels 10 and the shaft 5, but also improves the stability of rotation and transmission efficiency. Through this structural setting, the traction force of the tower crane suspension system is transmitted to the hook body 1 via the swivel wheels 10 and the drive bushing 12, and then through the shaft 5 to ensure the synchronicity of both sides, thus achieving precise control of the hook movement and further improving the flexibility and efficiency of the full-slewing tower crane lifting operation.

[0028] A housing 13 is mounted on the fixed plate 9 and covers the outside of the drive shaft sleeve 12. Two passage ports 14 are opened on the housing 13.

[0029] The outer casing 13 is circular, conforming to the overall contour of the rotating mechanism, and covers and protects the wheel 10. Two passageways 14 allow ropes to pass through, guiding the ropes to connect with the fixed disc 9. The dimensions of the passageways 14 are designed to match the rope diameter, ensuring smooth rope passage while effectively preventing jamming or wear during swaying. This outer casing 13 structure not only improves the overall safety and protection level of the device but also optimizes the working path of the ropes, providing strong support for the continuity and reliability of hoisting operations.

[0030] Two access ports 14 are mirror-distributed along the center line of the fixed plate 4. Both access ports 14 are located on the upper side of the center of the rotating wheel 10. The angle between the line connecting the access port 14 and the center of the outer shell 13 and the horizontal line is set to 30 to 60°.

[0031] The two through-holes 14 are mirror-distributed, which helps the rope to maintain a balanced distribution when entering and exiting the housing 13, avoiding uneven force on one side that could lead to uneven load or wear on the rotating mechanism.

[0032] The angle of the opening 14 on the outer casing 13 is within a reasonable range of inclination. This angle facilitates the smooth passage of the rope through the fixed plate 4 and into the rotating groove 11 of the wheel 10, and also effectively guides the rope to run in a specific direction, reducing bending stress and improving smooth operation and service life. Simultaneously, this inclined arrangement helps prevent the rope from shaking or dislodging under high loads, further enhancing the stability and safety of the overall hoisting system, making it suitable for high-efficiency operations in complex construction environments.

[0033] Various modifications to this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be given the broadest scope consistent with the principles and novel features disclosed herein. Although one or more exemplary embodiments of this disclosure have been described with reference to the accompanying drawings, those skilled in the art will understand that various changes in form and detail may be made therein without departing from the spirit and scope of this disclosure as defined by the appended claims.

Claims

1. A lifting hook for a full-slewing tower crane, characterized in that, It includes a hook body (1), a fixing block (2), a fixing plate (4), a rotating shaft (5), an adjusting reducer (6), a connecting rod (7), and a drive motor (15); The hook body (1) is mounted on the lower end of the fixed block (2) by a rotating connection. There are two fixed plates (4), and the two fixed plates (4) are respectively mounted on two opposite sides of the fixed block (2) by mounting bolts (3). The connecting rod (7) is fixed between the two fixed plates (4). The rotating shaft (5) passes through the two fixed plates (4) and is rotatably connected to the fixed plate (4). The fixed plate (4) is equipped with a rope connection assembly connected to the rotating shaft (5). The adjusting reducer (6) is mounted on the fixed block (2). One end of the adjusting reducer (6) is connected to the top of the hook body (1). The drive motor (15) is mounted inside any fixed plate (4). The output end of the drive motor (15) is connected to the other end of the adjusting reducer (6).

2. The lifting hook for a full-slewing tower crane according to claim 1, characterized in that: It also includes a fixed bushing (8), which is fixedly installed between two fixed plates (4), and the rotating shaft (5) is installed on the fixed plate (4) by rotating it inside the fixed bushing (8).

3. A lifting hook for a full-slewing tower crane according to claim 1, characterized in that: The cable connection assembly includes a fixed plate (9) installed on the outer end of the fixed plate (4), the top of the mounting bolt (3) is located on the outside of the fixed plate (9), the mounting bolt (3) passes through the fixed plate (9), a rotating wheel (10) is installed on the outside of the fixed plate (9), a drive shaft sleeve (12) is installed at the center of the rotating wheel (10), and the drive shaft sleeve (12) is sleeved on the outside of the rotating shaft (5).

4. A lifting hook for a full-slewing tower crane according to claim 3, characterized in that: The outer end of the wheel (10) is provided with a rotating groove (11) with an inward concave structure.

5. A lifting hook for a full-slewing tower crane according to claim 3, characterized in that: The fixed plate (9) is equipped with a housing (13) covering the outside of the drive shaft sleeve (12), and the housing (13) has two passages (14).

6. A lifting hook for a full-slewing tower crane according to claim 5, characterized in that: The two access ports (14) are mirror-distributed along the center line of the fixed plate (4). Both access ports (14) are located on the upper side of the center of the rotating wheel (10). The angle between the line connecting the access port (14) and the center of the outer shell (13) and the horizontal line is set to 30 to 60°.

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