Anti-twist hoisting device

Abstract

The utility model relates to hoisting equipment technical field, concretely relates to a kind of anti-twist hoisting device, including crossbeam and lifting hook, steel wire rope is arranged between the crossbeam and lifting hook, one end of the steel wire rope is provided with crossbeam connection, the other end is provided with winding equipment, the fixed pulley for winding steel wire rope is provided on the crossbeam, the upper portion of the lifting hook is provided with the anti-twist module used in cooperation with fixed pulley, steel wire rope can be guided and limited using anti-twist module, avoid steel wire rope to appear rotation and deflection when hoisting operation, to further improve the stability of hoisting operation.

Description

Technical Field

[0001] This utility model relates to the field of hoisting equipment technology, and specifically to an anti-torsion hoisting device. Background Technology

[0002] In many fields such as industrial production, construction, and logistics, hoisting operations are a core material handling method, undertaking the tasks of lifting and moving heavy equipment, large components, and various materials.

[0003] In current lifting equipment systems, wire rope-based lifting structures are widely used in various lifting scenarios due to their advantages such as high strength, good flexibility, wear resistance, and relatively reasonable cost. These lifting structures typically use wire ropes as the core load-bearing and force-transmitting component; however, wire ropes are prone to twisting and skew during lifting operations.

[0004] Specifically, during hoisting operations, the wire rope, under the weight of the hoisted material, experiences a complex stress distribution. Sudden changes in stress during lifting, braking, and material attitude adjustments can easily cause the wire rope to twist. If the center of gravity of the hoisted material deviates from the wire rope's center of force, or if the operation is affected by external factors such as wind or uneven terrain, the wire rope is highly susceptible to deviating from the preset hoisting center line, resulting in skew. This rotation and skew not only cause the hoisted material to sway and rotate, affecting the accuracy of material positioning and reducing operational efficiency, but more seriously, when the degree of rotation and skew is significant, it can lead to tangling and knotting of the wire rope, or even localized overload, accelerating fatigue damage and shortening its service life. In extreme cases, it can even cause major safety accidents such as the hoisted material falling or damage to hoisting equipment, posing a serious threat to the lives of workers and the property of the company. Utility Model Content

[0005] To address the aforementioned issues, this utility model provides an anti-torsion hoisting device. The anti-torsion module guides and limits the wire rope 3, preventing it from rotating or tilting during hoisting operations, thereby improving the stability of the hoisting operation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an anti-torsion hoisting device, comprising a crossbeam and a hook, wherein a wire rope is provided between the crossbeam and the hook, one end of the wire rope is connected to the crossbeam, and the other end is provided with a winding device, a fixed pulley for winding the wire rope is provided on the crossbeam, and an anti-torsion module for cooperating with the fixed pulley is provided above the hook.

[0007] As a further improvement to the above technical solution:

[0008] The anti-torsion module includes a mounting frame, a positioning shaft for mounting a hook is provided in the middle of the mounting frame, and an anti-torsion pulley block is provided above the mounting frame.

[0009] On the center line of the fixed pulley mounting bracket, the anti-torsion pulley group includes two movable pulleys located on both sides of the fixed pulley.

[0010] Each of the movable pulleys is provided with a pivot in the middle, and the two ends of the pivot are provided with bearing seats that are connected to the mounting bracket.

[0011] The movable pulley is provided with a guide groove at its edge, and a storage groove is provided at the bottom of the guide groove. Guide arcs are provided at the connection points between the two ends of the storage groove and the guide groove.

[0012] The depth of the storage trough is 2 / 5 of the diameter of the wire rope.

[0013] An arc-shaped protective cover is provided above the fixed pulley, and support rods connected to the crossbeam are provided at both ends of the arc-shaped protective cover. The gap between the arc-shaped protective cover and the fixed pulley is smaller than the diameter of the wire rope.

[0014] The winding device includes a winding drum, one end of which is equipped with a motor, and a speed reducer is provided between the motor and the winding drum.

[0015] The beneficial effects of this utility model embodiment are as follows: The anti-torsion hoisting device includes a crossbeam and a hook. A wire rope is provided between the crossbeam and the hook. One end of the wire rope is connected to the crossbeam, and the other end is provided with a winding device. A fixed pulley for winding the wire rope is provided on the crossbeam. An anti-torsion module that works with the fixed pulley is provided above the hook. The anti-torsion module can guide and limit the wire rope, preventing the wire rope from rotating and deviating during hoisting operations, thereby improving the stability of the hoisting operation. Attached Figure Description

[0016] Figure 1 This is the front view of the present invention;

[0017] Figure 2 This is a schematic diagram of the winding module in this utility model;

[0018] Figure 3 This is a schematic diagram of the movable pulley in this utility model.

[0019] In the diagram: 1. Crossbeam; 2. Hook; 3. Wire rope; 4. Fixed pulley; 5. Mounting frame; 6. Positioning shaft; 7. Moving pulley; 8. Rotating shaft; 9. Bearing seat; 10. Guide groove; 11. Storage groove; 12. Guide arc; 13. Arc-shaped protective cover; 14. Support rod; 16. Winding drum; 17. Motor; 18. Reducer. Detailed Implementation

[0020] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0021] like Figure 1-3 As shown, the anti-torsion lifting device in this embodiment includes a crossbeam 1 and a hook 2, connected by a wire rope 3. One end of the wire rope 3 is connected to the crossbeam 1, and the other end is connected to a winding device, forming a complete lifting power transmission path. To further optimize the stress state and guiding effect of the wire rope 3, a fixed pulley 4 for winding the wire rope 3 is specially installed on the crossbeam 1. At the same time, an anti-torsion module that works with the fixed pulley 4 is set above the hook 2. The two work together to avoid torsion problems during the lifting process.

[0022] The anti-torsion module includes a mounting frame 5, with a positioning shaft 6 located in the middle of the mounting frame 5. The positioning shaft 6 is used to mount the hook 2, thereby ensuring a stable connection between the hook 2 and the module. An anti-torsion pulley system is installed above the mounting frame 5, with the fixed pulley 4 positioned precisely on the centerline of the mounting frame 5. This layout effectively ensures the overall force balance of the device. The anti-torsion pulley system specifically consists of two movable pulleys 7, which are symmetrically distributed on both sides of the fixed pulley 4, forming a symmetrical force-bearing structure. Each movable pulley 7 has a rotating shaft 8 in the middle, and bearing seats 9 are installed at both ends of the rotating shaft 8. The bearing seats 9 are directly connected to the mounting frame 5, thereby realizing the flexible rotation of the movable pulley 7. In addition, a guide groove 10 is opened at the edge of the movable pulley 7. The guide groove 10 is used to guide the direction of the wire rope 3 and prevent the wire rope 3 from deviating. At the bottom of the guide groove 10, a storage groove 11 is also provided. The depth of the storage groove 11 is 2 / 5 of the diameter of the wire rope 3, which can reliably limit the wire rope 3 and prevent it from deviating from the track during movement. At the same time, the connection between the two ends of the storage groove 11 and the guide groove 10 is machined with guide arcs 12. This design can significantly reduce the friction between the wire rope 3 and the components during movement and extend the service life of the wire rope 3.

[0023] To protect the fixed pulley 4 and the wire rope 3 from external interference and damage, an arc-shaped protective cover 13 is installed above the fixed pulley 4. Support rods 14 are fixed to both ends of the arc-shaped protective cover 13, and the support rods 14 are tightly connected to the crossbeam 1 to ensure the stable installation of the protective cover and prevent it from loosening during operation. Furthermore, the gap between the arc-shaped protective cover 13 and the fixed pulley 4 is smaller than the diameter of the wire rope 3. This design effectively prevents the wire rope 3 from falling off the fixed pulley 4 and also blocks external impurities from entering the operating area of ​​the fixed pulley 4, preventing impurities from affecting the normal operation of the fixed pulley 4.

[0024] The winding equipment, as the core component providing power for the winding and unwinding of the wire rope 3, has a core component called the winding drum 16. The end of the wire rope 3 is fixedly connected to the winding drum 16. The winding and unwinding operations of the wire rope 3 are achieved by the forward and reverse rotation of the winding drum 16, thereby controlling the lifting and lowering of the hook 2. A motor 17 is equipped at one end of the winding drum 16, which provides stable power for the rotation of the winding drum 16. At the same time, a reducer 18 is set between the motor 17 and the winding drum 16. The reducer 18 can adjust the output speed of the motor 17 according to the actual lifting requirements, ensuring that the winding drum 16 operates at a suitable speed, ultimately ensuring the stability and safety of the entire lifting process.

[0025] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0028] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A twist prevention hoisting device, characterized by: It includes a crossbeam (1) and a hook (2), with a wire rope (3) between the crossbeam (1) and the hook (2). One end of the wire rope (3) is connected to the crossbeam (1), and the other end is equipped with a winding device. A fixed pulley (4) for winding the wire rope (3) is provided on the crossbeam (1), and an anti-torsion module that works with the fixed pulley (4) is provided above the hook (2).

2. Anti-twist hoisting device according to claim 1, characterized in that The anti-torsion module includes a mounting bracket (5), a positioning shaft (6) for mounting the hook (2) is provided in the middle of the mounting bracket (5), and an anti-torsion pulley block is provided above the mounting bracket (5).

3. Anti-twist hoisting device according to claim 2, characterized in that On the center line of the fixed pulley (4) mounting bracket (5), the anti-torsion pulley group includes two movable pulleys (7) located on both sides of the fixed pulley (4).

4. Anti-twist hoisting device according to claim 3, characterized in that Each of the movable pulleys (7) is provided with a pivot (8) in the middle, and the two ends of the pivot (8) are provided with bearing seats (9) that are connected to the mounting bracket (5).

5. The anti-twist hoisting device according to claim 3, characterized in that: The movable pulley (7) is provided with a guide groove (10) at its edge, and a storage groove (11) is provided at the bottom of the guide groove (10). Guide arcs (12) are provided at the connection between the two ends of the storage groove (11) and the guide groove (10).

6. The anti-torsion hoisting device according to claim 5, characterized in that: The depth of the storage trough (11) is 2 / 5 of the diameter of the wire rope (3).

7. The anti-twist hoist of claim 1, wherein: An arc-shaped protective cover (13) is provided above the fixed pulley (4). Support rods (14) connected to the crossbeam (1) are provided at both ends of the arc-shaped protective cover (13). The gap between the arc-shaped protective cover (13) and the fixed pulley (4) is smaller than the diameter of the wire rope (3).

8. The anti-twist hoist of claim 1, wherein: The winding device includes a winding drum (16), one end of which is provided with a motor (17), and a reducer (18) is provided between the motor (17) and the winding drum (16).

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