A crane drum wire rope anti-loose buckle

Abstract

This utility model discloses a crane drum wire rope anti-loosening buckle, belonging to the field of crane drum technology. Its key technical features include two end plates, with a drum body rotatably connected between opposite sides of the two end plates via bearings. The surface of the drum body has a rope groove, and the surface of the rope groove is wound with the wire rope body. An anti-loosening mechanism is installed inside the left end plate, comprising a locking component and a positioning component. By setting the locking component, a bidirectional self-tightening structure can be formed by the cooperation of the inclined surface of the locking cavity inner wall and two wedge blocks. When the wire rope body is subjected to force, it will drive the wedge blocks to tighten synchronously towards the center along the inclined surface of the locking cavity. The two wedge blocks will form a clamping force on the wire rope body from both sides, and the greater the force, the more significant the clamping effect of the wedge blocks, thereby significantly improving the anti-loosening ability of the connection between the wire rope body and the drum.

Description

Technical Field

[0001] This utility model relates to the field of crane drum technology, and in particular to a crane drum wire rope anti-loosening buckle. Background Technology

[0002] A crane is a type of engineering machinery used for lifting and moving heavy objects. It is widely used in construction sites, ports, factories, and other scenarios. It lifts heavy objects and moves them to designated locations through mechanical structures. Common types include tower cranes, truck cranes, and crawler cranes. The drum is one of the core components of a crane. It is a cylindrical cylindrical structure with spiral rope grooves engraved on its surface. Its main function is to wind the wire rope. When the crane is working, the drum rotates to wind and unwind the wire rope, thereby driving the hook to rise or fall and completing the lifting and lowering operations of the heavy objects. The performance of the drum directly affects the lifting capacity, working efficiency, and safety of the crane.

[0003] Currently, although there are various methods for fixing crane drums and wire ropes, all of them pose a potential risk of wire rope detachment. Among them, the rope clamp fixing method uses bolts to tighten the wire rope, but its clamping force depends on the bolt preload. Under the continuous vibration generated by the frequent lifting and braking of the crane, the bolts are very easy to gradually loosen, which greatly reduces the restraining force of the rope clamp on the wire rope. When the wire rope is under load, it may slip out of the loose rope clamp. Although the pressure plate fixing can provide strong load-bearing capacity, it squeezes the wire rope onto the drum with bolts. Long-term alternating loads can cause bolt fatigue and loosening. At the same time, the rigid contact between the pressure plate and the wire rope is prone to local wear. The worn wire rope is more likely to detach from the pressure plate when under force. The wire rope detaching from the drum will not only cause the interruption of lifting operations and affect the construction progress, but may also cause serious safety accidents such as the falling of heavy objects, thereby endangering the safety of personnel and equipment.

[0004] To address this issue, a crane drum wire rope anti-loosening buckle is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a crane drum wire rope anti-loosening buckle, which can solve the problem that although there are various existing methods for fixing crane drums and wire ropes, they all lead to the wire rope falling off.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a crane drum wire rope anti-loosening buckle, comprising two end plates, with a drum body rotatably connected between the opposite sides of the two end plates via bearings. A rope groove is formed on the surface of the drum body, and a wire rope body is wound around the surface of the rope groove. An anti-loosening mechanism is provided inside the left end plate, comprising a locking component and a positioning component. The locking component includes a locking cavity, the inner wall of which is set as an inclined surface. Two wedge blocks are movably connected inside the locking cavity, and both wedge blocks cooperate with the inclined surface. A mounting plate is provided on the side of the wedge blocks away from the locking cavity. Through holes that cooperate with the wire rope body are formed inside both the mounting plate and the locking cavity.

[0007] Preferably, the positioning component includes a fixed arc-shaped plate, which is fixedly connected to the side of the mounting plate away from the locking cavity, and the fixed arc-shaped plate is located above the through hole.

[0008] Preferably, a threaded column is fixedly connected to the bottom of the fixed arc plate, and a movable arc plate is movably connected to the surface of the threaded column. The movable arc plate is used in conjunction with the fixed arc plate.

[0009] Preferably, a positioning plate is fixedly connected to the bottom of the movable arc plate, the positioning plate is movably connected to the surface of the threaded column, and a positioning nut is threadedly connected to the surface of the threaded column and is located below the positioning plate.

[0010] Preferably, the inner sides of the movable arc plate, the fixed arc plate, and the wedge block are all provided with anti-slip textures, and the anti-slip textures are used in conjunction with the wire rope body.

[0011] Preferably, the mounting plate has a groove on the side near the wedge block, and a slider is slidably connected inside the groove. The slider is fixedly connected to the wedge block on the side near the wedge block.

[0012] Preferably, a limiting rod is fixedly connected inside the groove, and the slider is slidably connected to the surface of the limiting rod.

[0013] Preferably, a guide telescopic rod is movably connected inside the locking cavity on the side near the mounting plate, and the other end of the guide telescopic rod is fixedly connected to the mounting plate.

[0014] Preferably, the inside of the cylinder is provided with a rope threading hole, and the rope threading hole is used in conjunction with the wire rope body.

[0015] Preferably, the left end plate has an installation hole inside, and the locking cavity is fixedly installed inside the installation hole.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This application sets up a locking component, which utilizes the inclined surface of the inner wall of the locking cavity and the cooperation of two wedge blocks to form a two-way self-tightening structure. When the wire rope body is subjected to force, it will drive the wedge blocks to tighten synchronously towards the center along the inclined surface of the locking cavity. The two wedge blocks will form a clamping force on the wire rope body from both sides. The greater the force, the more significant the clamping effect of the wedge blocks, thereby significantly improving the anti-loosening ability of the connection between the wire rope body and the drum.

[0018] 2. This application, by setting up a positioning component, allows for the initial positioning of the wire rope body through the cooperation of the fixed arc plate and the movable arc plate. By adjusting the threaded column and the positioning nut, the position of the movable arc plate can be flexibly adjusted according to the diameter of the wire rope body, so that the fixed arc plate and the movable arc plate are closely attached to the surface of the wire rope. This not only enhances the adaptability to wire ropes of different specifications, but also provides additional constraints when the wire rope undergoes slight displacement under stress, preventing the wire rope body from slipping under vibration or impact loads, and further reducing the risk of the wire rope body falling off. Attached Figure Description

[0019] Figure 1 This is an overall structural diagram of the anti-loosening buckle for the crane drum wire rope of this utility model;

[0020] Figure 2 This is a schematic diagram showing the connection between the wire rope body and the anti-loosening mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the locking assembly of this utility model;

[0022] Figure 4 This is a schematic diagram of the mounting plate of this utility model;

[0023] Figure 5 This is a schematic diagram of the end plate and cylinder of this utility model;

[0024] Figure 6 This utility model Figure 2 Enlarged diagram of point A in the middle.

[0025] In the diagram, 1. End plate; 2. Cylinder; 3. Rope groove; 4. Wire rope body; 5. Anti-loosening mechanism; 51. Locking assembly; 511. Locking cavity; 512. Wedge block; 513. Mounting plate; 514. Through hole; 52. Positioning assembly; 521. Fixed arc plate; 522. Threaded column; 523. Moving arc plate; 524. Positioning plate; 525. Positioning nut; 6. Slide groove; 7. Slider; 8. Limiting rod; 9. Guide telescopic rod; 10. Rope threading hole; 11. Mounting hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-6 The present invention provides the following technical solution:

[0028] A crane drum wire rope anti-loosening buckle includes two end plates 1. A drum body 2 is rotatably connected between the opposite sides of the two end plates 1 via a bearing. The surface of the drum body 2 is provided with a rope groove 3, and a wire rope body 4 is wound around the surface of the rope groove 3. An anti-loosening mechanism 5 is provided inside the left end plate 1. The anti-loosening mechanism 5 includes a locking component 51 and a positioning component 52. The locking component 51 includes a locking cavity 511. The inner wall of the locking cavity 511 is set as an inclined surface. Two wedge blocks 512 are movably connected inside the locking cavity 511, and both wedge blocks 512 are used in conjunction with the inclined surface. A mounting plate 513 is provided on the side of the wedge block 512 away from the locking cavity 511. The mounting plate 513 and the locking cavity 511 are both provided with through holes 514 that are used in conjunction with the wire rope body 4.

[0029] In this embodiment: by setting the locking assembly 51, the locking cavity 511 serves as the basic load-bearing structure of the locking assembly 51. The inclined surface of its inner wall can precisely match the inclined surface of the wedge block 512, providing a clear force guidance trajectory for the wedge block 512. The two wedge blocks 512 are components that directly clamp the wire rope body 4. Their symmetrical distribution design can form a balanced wrapping constraint on the wire rope body 4 from both sides. Under the tension of the wire rope body 4, the wedge blocks 512 will synchronously move along the inclined surface of the locking cavity 511 towards... The center converges, utilizing the angular characteristics of the inclined plane to create a self-locking effect that tightens as force is applied. The mounting plate 513 serves a dual function of connection and guidance. The through hole 514 inside it cooperates with the through hole 514 of the locking cavity 511 to provide a smooth passage for the wire rope body 4, ensuring that the wire rope body 4 can accurately enter the locking area. This ensures that the two wedge blocks 512 can always apply clamping force to the wire rope body 4 synchronously and symmetrically, guaranteeing the stability and reliability of the locking action, thereby achieving the effect of preventing loosening.

[0030] Specifically, such as Figure 6 As shown, the positioning component 52 includes a fixed arc plate 521, which is fixedly connected to the side of the mounting plate 513 away from the locking cavity 511, and the fixed arc plate 521 is located above the through hole 514.

[0031] Specifically, such as Figure 6As shown, a threaded post 522 is fixedly connected to the bottom of the fixed arc plate 521, and a movable arc plate 523 is movably connected to the surface of the threaded post 522. The movable arc plate 523 works in conjunction with the fixed arc plate 521.

[0032] Specifically, such as Figure 6 As shown, a positioning plate 524 is fixedly connected to the bottom of the movable arc plate 523. The positioning plate 524 is movably connected to the surface of the threaded column 522. A positioning nut 525 is threadedly connected to the surface of the threaded column 522 and is located below the positioning plate 524.

[0033] Specifically, such as Figure 6 As shown, the inner sides of the movable arc plate 523, the fixed arc plate 521, and the wedge block 512 are all provided with anti-slip textures, and the anti-slip textures are used in conjunction with the wire rope body 4.

[0034] In this embodiment: By setting the positioning component 52, the fixed arc plate 521 is the basic fixing component of the positioning component 52. Its arc contour is adapted to the surface of the wire rope body 4, and can form a preliminary fit constraint on the wire rope body 4 from above. The movable arc plate 523 can form a symmetrical clamping structure with the fixed arc plate 521, and cooperates with the fixed arc plate 521 from below to wrap the wire rope body 4. Its movable characteristic allows the positioning component 52 to adapt to wire rope bodies 4 of different diameters. By adjusting the position, it ensures a tight fit with the surface of the wire rope body 4, enhancing the compatibility with wire rope bodies 4 of different specifications. The threaded column 522 can provide a track for the movable arc plate 523 to adjust its height, ensuring that the movable arc plate 523 and the fixed arc plate 521 are in close contact. The spacing can be flexibly adjusted according to the diameter of the wire rope body 4. The positioning plate 524 can transmit the locking force of the positioning nut 525 to the moving arc plate 523, so that it can stably fit against the wire rope body 4. On the other hand, it can restrict the rotation of the moving arc plate 523, ensuring that it always maintains the correct alignment with the wire rope body 4 during the adjustment process, and avoids deviation that affects the clamping effect. The positioning nut 525 can lock and fix the positioning plate 524 and the moving arc plate 523 through the threaded engagement with the threaded post 522. When tightening, the positioning nut 525 pushes the positioning plate 524 upward, driving the moving arc plate 523 to approach the fixed arc plate 521 until the two clamp the wire rope body 4, thereby ensuring the positioning reliability during long-term use.

[0035] Specifically, such as Figure 2 , Figure 4 As shown, a groove 6 is provided on the side of the mounting plate 513 near the wedge block 512, and a slider 7 is slidably connected inside the groove 6. The side of the slider 7 near the wedge block 512 is fixedly connected to the wedge block 512.

[0036] Specifically, such as Figure 4As shown, a limiting rod 8 is fixedly connected inside the slide groove 6, and the slider 7 is slidably connected to the surface of the limiting rod 8.

[0037] Specifically, such as Figure 4 As shown, a guide telescopic rod 9 is movably connected inside the locking cavity 511 on the side near the mounting plate 513, and the other end of the guide telescopic rod 9 is fixedly connected to the mounting plate 513.

[0038] In this embodiment: Through the above settings, the slide groove 6 and the slider 7 can form a sliding guide structure, which can ensure that the two wedge blocks 512 can only move in the direction of approaching or moving away from the wire rope body 4 under the action of the inclined surface of the locking cavity 511, avoiding the wedge blocks 512 from deflecting or misaligning due to uneven force, ensuring that the two wedge blocks 512 always symmetrically clamp the wire rope body 4, making the clamping force evenly distributed, and preventing locking failure caused by unilateral loosening. The limiting rod 8 can further enhance the guidance and limiting of the slider 7. On the one hand, the limiting rod 8 restricts the lateral sway of the slider 7 in the slide groove 6, ensuring that the slider 7 slides stably along a straight line, avoiding the wedge blocks 512 from getting stuck or deviating during the movement. On the other hand, the limiting rod 8 provides additional support for slider 7, enhancing the overall rigidity of the sliding structure. Under long-term high-frequency stress or vibration conditions, it can reduce the wear of the groove 6 and slider 7, extend the service life of the structure, and maintain guiding accuracy. The function of the guide telescopic rod 9 is to position and guide the relative position of the mounting plate 513 and the locking cavity 511. When the wedge block 512 is subjected to force and causes the mounting plate 513 to move, the guide telescopic rod 9 can limit the displacement direction of the mounting plate 513, ensuring that the mounting plate 513 always remains coaxial with the locking cavity 511, avoiding the deviation of the wire rope threading angle caused by the tilt of the mounting plate 513, thereby affecting the clamping effect of the wedge block 512 and improving the overall stability of the anti-loosening mechanism 5.

[0039] Specifically, such as Figure 5 As shown, the inside of the cylinder 2 is provided with a rope hole 10, and the rope hole 10 is used in conjunction with the wire rope body 4.

[0040] Specifically, such as Figure 5 As shown, the left end plate 1 has a mounting hole 11 inside, and the locking cavity 511 is fixedly installed inside the mounting hole 11.

[0041] In this embodiment: With the above settings, the rope hole 10 is the channel through which the wire rope body 4 passes through the cylinder 2. Its main function is to provide a hidden path for the wire rope body 4, and to provide a stable rope foundation for the locking action of the subsequent anti-loosening mechanism 5. The mounting hole 11 can provide precise installation positioning for the locking cavity 511. By fixing the locking cavity 511 in the mounting hole 11, the relative position between the locking cavity 511 and the cylinder 2 and the wire rope body 4 can be ensured to be accurate, ensuring that the wire rope body 4 can smoothly pass through each component and enter the locking area. At the same time, the mounting hole 11 can also provide a firm support for the locking cavity 511, and transfer the wire rope tension borne by the locking cavity 511 to the end plate 1, dispersing the force and preventing the locking cavity 511 from loosening or deforming due to excessive force on its own, thereby ensuring the overall stability of the anti-loosening mechanism 5.

[0042] Working principle: First, the end of the wire rope body 4 is passed through the rope hole 10 inside the drum 2, and then continues to pass through the mounting hole 11 of the left end plate 1, the through hole 514 of the locking cavity 511, and the through hole 514 of the mounting plate 513 until a suitable length is exposed. Then, the positioning nut 525 is rotated, causing the positioning nut 525 to push the positioning plate 524 and move the moving arc plate 523 upward. The moving arc plate 523 will cooperate with the fixed arc plate 521 to clamp the wire rope body 4 from the upper and lower sides. When the crane is working, the drum 2 rotates through the bearing to drive the wire rope body 4 to retract and extend. When the wire rope body 4 bears a load, the wire rope body 4 will drive the mounting plate 513 to move closer to the locking cavity 51. The movement of one side of the 1 causes the two wedge blocks 512 to converge towards the center synchronously along the inclined surface of the locking cavity 511. Then, the two wedge blocks 512 will form a clamping force on the wire rope body 4 from both sides. The greater the force, the more significant the clamping effect of the wedge blocks 512, thus producing a self-locking effect that tightens as the force increases. The locking component 51 can prevent the wire rope body 4 from loosening through the self-locking action of the wedge blocks 512 and the inclined surface. The positioning component 52 can further restrict the axial movement of the wire rope body 4 through the cooperation of the fixed arc plate 521 and the movable arc plate 523. The two work together to form a dual protection of dynamic locking and static positioning, thereby achieving the effect of preventing the wire rope body 4 from loosening.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A crane drum wire rope anti-loose buckle comprising two end plates (1), characterized in that: A cylinder (2) is rotatably connected between two end plates (1) on opposite sides via a bearing. The surface of the cylinder (2) is provided with a rope groove (3), and a steel wire rope body (4) is wound around the surface of the rope groove (3). An anti-loosening mechanism (5) is provided inside the left end plate (1). The anti-loosening mechanism (5) includes a locking assembly (51) and a positioning assembly (52). The locking assembly (51) includes a locking cavity (511). The inner wall of the locking cavity (511) is set as an inclined surface. Two wedge blocks (512) are movably connected inside the locking cavity (511), and both wedge blocks (512) are used in conjunction with the inclined surface. An mounting plate (513) is provided on the side of the wedge block (512) away from the locking cavity (511). The mounting plate (513) and the locking cavity (511) are both provided with through holes (514) that are used in conjunction with the steel wire rope body (4).

2. A crane drum wire rope anti-loose buckle according to claim 1, characterized in that: The positioning component (52) includes a fixed arc plate (521), which is fixedly connected to the side of the mounting plate (513) away from the locking cavity (511) and is located above the through hole (514).

3. The anti-loosening buckle for crane drum wire rope according to claim 2, characterized in that: The bottom of the fixed arc plate (521) is fixedly connected to a threaded column (522), and the surface of the threaded column (522) is movably connected to a movable arc plate (523). The movable arc plate (523) is used in conjunction with the fixed arc plate (521).

4. The anti-loosening buckle for crane drum wire rope according to claim 3, characterized in that: The bottom of the movable arc plate (523) is fixedly connected to a positioning plate (524), the positioning plate (524) is movably connected to the surface of the threaded column (522), the surface of the threaded column (522) is threadedly connected to a positioning nut (525), and the positioning nut (525) is located below the positioning plate (524).

5. A crane drum wire rope anti-loosening buckle according to claim 3, characterized in that: The inner sides of the movable arc plate (523), the fixed arc plate (521) and the wedge block (512) are all provided with anti-slip textures, and the anti-slip textures are used in conjunction with the wire rope body (4).

6. The anti-loosening buckle for crane drum wire rope according to claim 1, characterized in that: The mounting plate (513) has a groove (6) on the side near the wedge block (512), and a slider (7) is slidably connected inside the groove (6). The slider (7) is fixedly connected to the wedge block (512) on the side near the wedge block (512).

7. A crane drum wire rope anti-loosening buckle according to claim 6, characterized in that: The sliding groove (6) is fixedly connected to a limiting rod (8), and the slider (7) is slidably connected to the surface of the limiting rod (8).

8. The anti-loosening buckle for crane drum wire rope according to claim 1, characterized in that: The locking cavity (511) is movably connected to the guide telescopic rod (9) on the side near the mounting plate (513), and the other end of the guide telescopic rod (9) is fixedly connected to the mounting plate (513).

9. A crane drum wire rope anti-loosening buckle according to claim 1, characterized in that: The cylinder (2) has a rope hole (10) inside, and the rope hole (10) is used in conjunction with the wire rope body (4).

10. A crane drum wire rope anti-loosening buckle according to claim 1, characterized in that: The left end plate (1) has an installation hole (11) inside, and the locking cavity (511) is fixedly installed inside the installation hole (11).

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