Anti-swing device for lifting hook of crane
The hook anti-sway device, composed of a fixed plate, pulley, spring column, and counterweight, solves the problem of hook swaying, achieves stable hook suspension and safe operation, and reduces equipment costs.
Patent Information
- Application Number
- CN202520807574.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-25
AI Technical Summary
In existing technologies, the swaying of the hook affects work efficiency and poses safety hazards, and existing anti-sway technologies have not been able to completely prevent the swaying of the hook.
The hook anti-sway device consists of a fixed plate, pulleys, spring columns, and counterweights. It is fixedly installed by pulleys, the position is limited by the limiting plate, and the spring columns absorb the impact force to keep the hook suspended stably and reduce swaying.
It effectively reduces hook sway, improves operational stability and safety, increases the stability, reliability and practicality of the device, and reduces equipment costs.
Smart Images
Figure CN223950618U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-swaying of crane hooks. Background Technology
[0002] In lifting operations, hook swaying is a common problem. Hook swaying not only affects work efficiency but can also lead to safety hazards, especially in precision lifting or high-altitude operations, where a swaying hook can cause serious safety accidents. Existing crane hook anti-swaying technologies often employ complex control systems or add extra stabilizing structures, which not only increases the cost of the equipment but may also affect the overall performance and flexibility of the crane.
[0003] In existing technologies, mechanical anti-sway mechanisms include using a four-wire rope bidirectional cross-winding structure in gantry cranes, combined with movable pulleys at the four corners of the lifting device, to form a bidirectional cross-sway mechanism. This design dissipates sway energy through the relative motion and frictional resistance between the movable pulleys and the wire ropes, effectively reducing hook sway. Electronic control anti-sway technology involves using sensors to monitor the hook status in real time and adjusting the crane's operating speed and acceleration through a controller to suppress sway caused by inertial impact. It supports independent load height adjustment and can precisely control the sway angle (±0.25 degrees) based on the rope length. It is equipped with a one-button start / stop switch to achieve automatic anti-sway across the entire height range, reducing manual intervention. Operational assistance methods for anti-sway include adjusting the crane's movement rhythm (such as slow start / stop, reverse operation to counteract inertia), which can temporarily reduce hook sway, but this relies heavily on operator experience. However, none of the above technical solutions completely eliminate hook sway; therefore, further mitigation of hook sway is necessary. Utility Model Content
[0004] The technical problem to be solved by this utility model is: how to provide a crane hook anti-sway device to reduce the swaying of the hook.
[0005] The utility model adopts the technical scheme: a crane hook anti-shaking device, including two parallel structure arrangement and each piece is " convex " structure's fixed plate 1, be between two fixed plates 1 and two ends tip respectively connect two fixed plates's connecting rod 12, be between two fixed plates 1 and connect two fixed plates's clamping plate 9, be between two fixed plates 1 and connect two fixed plates's adapter device of I structure, install on connecting rod 12 and be out of two fixed plates between's pulley 2, install on adapter device's spring post 5, with spring post 5 connects and hangs the device 17, connect on the hook 6 of hanging device 17, the connecting point of connecting rod 12 and fixed plate is in the middle part of the upper end of fixed plate, the middle part of connecting rod 12 is equipped with bearing 11, pulley 2 is installed on bearing 11, pulley 2 is between two fixed plates and is parallel to each fixed plate, the adapter device includes the slide bar 3 of middle part and connects in the adapter rod 13 of slide bar 3 every end head, the both ends of each adapter rod are connected to a fixed plate, the axis of slide bar 3 is perpendicular to the axis of pulley 2, and the hanging device 17 is inverted triangular structure.
[0006] The crane hook anti-shaking device further includes a counterweight 8 and a counterweight shaft, both ends of the counterweight shaft are fixed on a fixed plate, the middle part of the counterweight 8 has a cuboid hole, and the counterweight 8 is hung on the counterweight shaft through the cuboid hole.
[0007] The clamping plate 9 is two inverted L-shaped plates in a symmetrical structure, the upper plate of each clamping plate is on the left side or the right side of the lower part of the fixed plate, the lower plate of each clamping plate has a through hole 10, and each clamping plate is connected to a limiting device through the through hole 10, the limiting device includes a limiting plate 4 and a positioning rod 14, the positioning rod 14 is an L-shaped rod, one end of which is clamped with a through hole, and the other end is fixedly connected with the limiting plate 4.
[0008] The limiting plate 4 is a cuboid plate with a hollow middle part.
[0009] The crane hook anti-shaking device further includes a connecting plate 7 between the two fixed plates 1, both ends of the connecting plate 7 are connected to the two fixed plates.
[0010] The hanging device 17 includes a front plate, a rear plate, a top plate, an auxiliary connecting rod, and a hook shaft, the top plate, the auxiliary connecting rod, and the hook shaft are all between the front plate and the rear plate, and the end heads of the top plate, the auxiliary connecting rod, and the hook shaft are all connected to the front plate and the rear plate, the top plate is connected to the lower part of the spring post 5, and the hook 6 is installed on the hook shaft.
[0011] The spring post 5 comprises a base 15, a post 20 coaxial with the base 15, a spring 19 sleeved on the post, a sleeve ring 21 at the top of the post 20, a post handle 22 at the bottom of the post 20, the base 15 is a stepped cylinder with a cylindrical cavity in the inside, an inner edge 16 on the inside upper portion of the base 15, the spring 19 is between the post handle 22 and the inner edge 16, the sleeve ring 21 is sleeved on the sliding rod 3, and the base 5 is connected with the hanging device 17.
[0012] The crane device has the advantages that: firstly, the device is installed on the lifting hook system of the crane before the crane operation; secondly, when the crane starts to operate, the lifting hook slides on the sliding rod through the pulley and is limited by the limiting plate, thereby reducing shaking; then, when the lifting hook is subjected to external force, the spring post plays a damping role, absorbs impact force, and keeps the stable suspension of the lifting hook; finally, after the operation is completed, the lifting hook and the suspended articles are safely put down, and the device is removed or reserved for next use.
[0013] The device can fix and install the pulley through the fixed plate, support the device through the pulley, ensure normal use of the device, fix and install the structure below the device through the fixed plate, make the device more stable as a whole, increase the stability of the device, slide and install the structure below the device through the sliding rod and the limiting plate, adjust the position of the device as required, limit the device through the limiting plate, prevent the device from falling, increase the reliability and convenience of the device, elastically support the hook through the spring post, make the device more stably suspend articles, and increase the practicality of the device. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the overall structure schematic view of the utility model;
[0015] Figure 2 It is the pulley installation schematic view of the utility model;
[0016] Figure 3 It is the structure schematic view of the limiting plate and the adapter device of the utility model;
[0017] Figure 4 It is the connection schematic view of the spring post and the adapter device of the utility model;
[0018] Figure 5 It is the structure schematic view of the spring post of the utility model;
[0019] Wherein, 1, fixed plate, 2, pulley, 3, slide bar, 4, limit plate, 5, spring column, 6, hook, 7, connecting plate, 8, counterweight, 9, clamping plate, 10, through hole, 11, bearing, 12, connecting rod, 13, adapter rod, 14, positioning rod, 15, base, 16, inner edge, 17, hanging device, 18, mounting hole, 19, spring, 20, upright, 21, collar, 22, handle. DETAILED DESCRIPTION
[0020] As Figures 1-5 shown, a crane hook anti-shake device, comprising two fixed plates arranged in parallel structure and each in "convex" structure, a connecting rod 12 between the two fixed plates 1 and the two ends of the connecting rod 12 are connected to the two fixed plates, a clamping plate 9 between the two fixed plates 1 and connected to the two fixed plates, an adapter device in I-shaped structure between the two fixed plates 1 and connected to the two fixed plates, a pulley 2 mounted on the connecting rod 12 and out of the two fixed plates, a spring column 5 mounted on the adapter device, a hanging device 17 connected to the spring column 5, a hook 6 connected to the hanging device 17.
[0021] The shape of the fixed plate 1 is as shown in Figure 1 , the connecting rod 12 is as shown in Figure 2 , the connecting point of the connecting rod 12 and the fixed plate is in the middle of the upper end of the fixed plate, the middle of the connecting rod 12 is provided with a bearing 11, the bearing 11 is provided with a pulley 2, and the pulley 2 is between the two fixed plates and parallel to each fixed plate. In use, the pulley 2 is connected to the steel wire rope (on the crane).
[0022] As Figure 2 shown, the adapter device includes a slide bar 3 in the middle and an adapter rod 13 connected to each end of the slide bar 3, and the two ends of each adapter rod are connected to a fixed plate.
[0023] The axis of the slide bar 3 is perpendicular to the axis of the pulley 2, and the hanging device 17 is in inverted triangular structure.
[0024] As Figure 1 and Figure 3 shown, the hanging device 17 includes a front plate, a rear plate, a top plate, an auxiliary connecting rod, and a hook shaft, and the top plate, the auxiliary connecting rod, and the hook shaft are all between the front plate and the rear plate and the ends are connected to the front plate and the rear plate, and the front plate and the rear plate are symmetrical and parallel, as Figure 4 The top plate is provided with a mounting hole 18, the top plate is connected to the lower part of the spring column 5, and the hook shaft is provided with a hook 6.
[0025] As Figure 2As shown, the crane hook anti-shake device further comprises a counterweight 8 and a counterweight shaft, both ends of the counterweight shaft are fixed on a fixed plate, the middle part of the counterweight 8 has a cuboid hole, and the counterweight 8 is hung on the counterweight shaft through the cuboid hole. The purpose of the counterweight 8 is to reduce the swing. The counterweight shaft can rotate around its axis, and there are many such rotating structures in the prior art, which will not be described in detail here, and the counterweight 8 and the counterweight shaft are fixed together. In one embodiment, the end of the counterweight shaft is dumbbell-shaped, which clamps the fixed plate while leaving a gap, and the diameter of the central connecting handle of the dumbbell-shaped counterweight shaft is smaller than the inner diameter of the opening of the fixed plate at the connection point of the dumbbell-shaped counterweight shaft and the fixed plate. In this way, the counterweight shaft can rotate without slipping out.
[0026] The clamping plate 9 is a pair of symmetrical inverted L-shaped plates, the upper plate of each clamping plate is located on the left side or the right side of the lower part of the fixed plate, the lower plate of each clamping plate has a through hole 10, and each clamping plate is connected with a limiting device through the through hole 10. The limiting device comprises a limiting plate 4 and a positioning rod 14, the positioning rod 14 is an L-shaped rod, one end of which is clamped with a through hole and the other end is fixedly connected with the limiting plate 4. The upper plate and the lower plate of the clamping plate are both cuboid plates, as shown in the figure. Figure 3 In one embodiment, the upper plate has two symmetrical structures welded on both sides of the lower part of the fixed plate. The positioning rod 14 of the limiting device is used for connection, and the limiting device is used for limiting the large-angle movement of the hanging device.
[0027] The limiting plate 4 is a cuboid plate with a hollow middle part. The hollow limiting plate 4 can reduce the weight, and can also be used without being hollow.
[0028] The crane hook anti-shake device further comprises a connecting plate 7 between the two fixed plates 1 and connected to the two fixed plates at both ends, the connecting plate 7 has two and is located on both sides of the pulley 2. The connecting plate 7 is located at the two shoulders of the fixed plate, and is used for reinforcing the connection of the fixed plate.
[0029] The connection mode of the utility model is one of welding, bolt connection, hanging connection and slot connection, or a mixture of several modes.
[0030] The spring column 5 comprises a base 15, a column 20 coaxial with the base 15, a spring 19 sleeved on the column, a sleeve ring 21 at the top of the column 20, a column handle 22 at the bottom of the column 20, and a stepped cylinder with a cylindrical hollow inside the base 15. The inner side of the base 15 has an inner edge 16, and the spring 19 is located between the column handle 22 and the inner edge 16; the sleeve ring 21 is sleeved on the sliding rod 3, and the base 5 is connected with the hanging device 17.
[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A crane hook anti-swing device, characterized in that: The crane hook anti-shaking device comprises two fixed plates (1) arranged in parallel structure and each in "convex" structure, a connecting rod (12) between the two fixed plates (1) and having two ends connected to the two fixed plates respectively, a clamping plate (9) between the two fixed plates (1) and connected to the two fixed plates, an adapter device in I-shaped structure between the two fixed plates (1) and connected to the two fixed plates, a pulley (2) mounted on the connecting rod (12) and out of the two fixed plates, a spring column (5) mounted on the adapter device, a hanging device (17) connected to the spring column (5), and a hook (6) connected to the hanging device (17), wherein the connecting point of the connecting rod (12) and the fixed plate is at the middle of the upper end of the fixed plate, the middle of the connecting rod (12) is provided with a bearing (11), the bearing (11) is provided with the pulley (2), the pulley (2) is between the two fixed plates and parallel to each fixed plate, the adapter device comprises a slide rod (3) at the middle and an adapter rod (13) connected to each end of the slide rod (3), and each end of the adapter rod is connected to one fixed plate, the axis of the slide rod (3) is perpendicular to the axis of the pulley (2), and the hanging device (17) is in inverted triangular structure.
2. A crane hook anti-swing device according to claim 1, characterised in that: The crane hook anti-shaking device further comprises a counterweight (8) and a counterweight shaft, two ends of the counterweight shaft are fixed on one fixed plate respectively, the middle of the counterweight (8) is provided with a cuboid hole, and the counterweight (8) is hung on the counterweight shaft through the cuboid hole.
3. A crane hook anti-swing device according to claim 1, characterised in that: The clamping plate (9) is two inverted L-shaped plates in symmetrical structure, the upper plate of each clamping plate is at the left side or the right side of the lower part of the fixed plate, the lower plate of each clamping plate is provided with a through hole (10), each clamping plate is connected to one limiting device through the through hole (10), the limiting device comprises a limiting plate (4) and a positioning rod (14), the positioning rod (14) is an L-shaped rod, one end of the positioning rod (14) is clamped with one through hole, and the other end of the positioning rod (14) is fixedly connected with the limiting plate (4).
4. A crane hook anti-swing device according to claim 3, characterised in that: The limiting plate (4) is a cuboid plate and hollow in the middle.
5. A crane hook anti-swing device according to claim 1, characterized in that: The crane hook anti-shaking device further comprises a connecting plate (7) between the two fixed plates (1) and having two ends connected to the two fixed plates respectively, the connecting plate (7) has two and is arranged at the two sides of the pulley (2) respectively.
6. A crane hook anti-swing device according to claim 1, characterised in that: The hanging device (17) comprises a front plate, a rear plate, a top plate, an auxiliary connecting rod and a hook shaft, the top plate, the auxiliary connecting rod and the hook shaft are all between the front plate and the rear plate and have ends connected to the front plate and the rear plate, the top plate is connected with the lower part of the spring column (5), and the hook shaft is provided with the hook (6).
7. A crane hook anti-swing device according to claim 1, characterized in that: The spring column (5) comprises a base (15), a stand column (20) coaxial with the base (15), and a spring (19) sleeved on the stand column, the top of the stand column (20) is provided with a sleeve ring (21), the bottom of the stand column (20) is provided with a column handle (22), the base (15) is a stepped cylinder with a cylindrical cavity in the inside, the inside of the base (15) is provided with an inner edge (16) at the upper part, the spring (19) is between the column handle (22) and the inner edge (16), the sleeve ring (21) is sleeved on the slide rod (3), and the base (15) is connected with the hanging device (17).