Intelligent anti-swing device for crane

By installing clamping and limiting components on the crane, and using hydraulic cylinders and motor-driven grab hooks and rubber limiting blocks, the problems of grab bucket swaying and loosening are solved, achieving stable clamping of goods and preventing them from falling, thus improving the crane's operating efficiency and safety.

CN224450077UActive Publication Date: 2026-07-03SHANDONG TAISHAN HOISTING MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG TAISHAN HOISTING MASCH CO LTD
Filing Date
2025-04-27
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

When using the grab bucket on a crane, it is common for the grab bucket to swing or loosen, causing the grabbed object to fall off, reducing work efficiency. Furthermore, the grab bucket cannot be fixed when it is grabbed, which may cause the object to tilt or fall.

Method used

An intelligent anti-sway device for cranes is adopted, including a clamping component and a limiting component. The gripper and rubber limiting block are driven by a hydraulic cylinder, a dual-head motor and a drive motor to achieve clamping of the gripper and stable limiting of the cargo, preventing swaying and loosening.

Benefits of technology

It effectively prevents the grab hook from shaking or loosening during the grabbing process, ensuring stable clamping of goods, avoiding goods falling, and improving the operating efficiency and safety of the crane.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a crane intelligence anti -sway device relates to crane relevant equipment technical field, and the utility model discloses a crosspiece is equipped with the clamping fixture subassembly on fixedly, the lower surface fixed of crosspiece is equipped with the hydraulic cylinder, the output of hydraulic cylinder is equipped with the first fixed block, the first fixed block is equipped with the grappling hook and rotates, the grappling hook is equipped with two, and the grappling hook symmetry sets up on the first fixed block, the inner rotation of grappling hook is equipped with the pivot, and the rotation connecting rod is connected between the pivot and crosspiece, the anti -shaking subassembly is equipped on the grappling hook, the utility model can make its output end connection screw rod rotate through the start double -end motor, and the rectangular block of the outer side surface sleeve of screw rod moves to one side of double -end motor, through the vertical pole can make the clamping block and the outer side surface of grappling hook be attached, prevent the phenomenon that grappling hook shakes or relaxes in the process of fetching goods transportation.
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Description

Technical Field

[0001] This utility model relates to the technical field of crane-related equipment, specifically to an intelligent anti-sway device for cranes. Background Technology

[0002] A crane is a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range. Also known as an overhead crane, gantry crane, or tire crane, its main characteristics are: the driver's cab and the lifting control cab are combined into one; it evolved from crawler cranes; and the crane's bridge runs longitudinally along tracks laid on elevated structures on both sides, making full use of the space beneath the bridge to lift materials without being obstructed by ground equipment. It is the most widely used and most numerous type of lifting machinery.

[0003] When using the grab bucket on a crane, it is common for the grab bucket to swing or loosen, causing the grabbed object to fall off. This makes it difficult for the operator to effectively control the grab bucket, greatly reducing the crane's operating efficiency. Furthermore, it is difficult to hold the grabbed object in place. For example, when grabbing a long cylindrical object, the object may tilt in different directions, causing the device to shake or even causing the object to fall. Utility Model Content

[0004] To address the common problems of swaying or loosening of the grab bucket during crane operation, which causes the grabbed object to fall off, making it difficult for operators to effectively control the grab bucket and greatly reducing the crane's operating efficiency, and to prevent the grab from securing the object (e.g., when grabbing a long cylindrical object, the object may tilt in different directions, causing the device to shake or even the object to fall), the purpose of this utility model is to provide an intelligent anti-sway device for cranes.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an intelligent anti-sway device for a crane, including a horizontal plate, a clamping assembly fixedly provided on the horizontal plate, a hydraulic cylinder fixedly provided on the lower surface of the horizontal plate, a first fixing block provided at the output end of the hydraulic cylinder, a grab hook rotatably provided on the first fixing block, two grab hooks provided and symmetrically arranged on the first fixing block, a rotating shaft rotatably provided inside the grab hook, a rotating connecting rod connected between the rotating shaft and the horizontal plate, and an anti-shake assembly provided on the grab hook;

[0006] The clamping assembly includes a fixing plate fixedly connected to the lower surface of a horizontal plate. A rectangular groove is formed on the lower surface of the fixing plate, and a lead screw is rotatably mounted in the rectangular groove. A rectangular block is threaded onto the outer surface of the lead screw, and the rectangular block slides against the inner surface of the rectangular groove. A fixing rod is fixedly mounted on the lower surface of the rectangular block, and a clamping block is fixedly mounted at the other end of the fixing rod. The clamping block movably fits against the outer surface of the hook. A dual-head motor is fixedly mounted inside the horizontal plate, and a connecting rod is provided at the output end of the dual-head motor. A circular groove is formed inside the horizontal plate, and the dual-head motor is fixedly mounted inside the circular groove. The output end of the connecting rod is fixedly connected to one end of the lead screw.

[0007] Preferably, the limiting component includes a cylinder, a grab hook inserted inside the cylinder, a second fixing block fixed inside the cylinder, a drive motor fixed on the upper surface of the second fixing block, a partition fixed on the inner surface of the cylinder near the grab hook, a screw rotatably connected between the second fixing block and the partition, the output end of the drive motor fixedly connected to the upper end of the screw, a sleeve plate threaded on the outer surface of the screw, the sleeve plate slidingly fitting against the inner surface of the cylinder, a vertical rod fixed on one side of the sleeve plate, the vertical rod movably penetrating the partition, a movable disk fixed on one side of the vertical rod, and a rubber limiting block fixed on the side of the movable disk away from the vertical rod.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] 1. This utility model can rotate the lead screw connected to its output end by starting the double-headed motor. The rectangular block sleeved on the outer surface of the lead screw moves to one side of the double-headed motor. The vertical rod can make the clamping block fit against the outer surface of the grab hook, preventing the grab hook from shaking or loosening during the grabbing and transportation of goods.

[0010] 2. This utility model can drive the screw to rotate by starting the drive motor. The rotation of the screw can cause the sleeve plate fitted on its outer surface to slide along the inner surface of the cylinder. The vertical rod can drive the moving plate to move, so that the rubber limiting block can come into contact with the goods and limit the goods to prevent them from falling. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the clamping component structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the anti-shake component structure of this utility model.

[0015] In the diagram: 1. Horizontal plate; 11. Lifting fixing component; 2. Clamping assembly; 21. Fixing plate; 22. Rectangular groove; 23. Screw; 24. Rectangular block; 25. Fixing rod; 26. Clamping block; 27. Circular groove; 28. Double-headed motor; 281. Connecting rod; 3. Hydraulic cylinder; 31. First fixing block; 32. Grab hook; 33. Rotating shaft; 34. Rotating connecting rod; 5. Limiting assembly; 51. Cylinder; 52. Second fixing block; 53. Drive motor; 54. Partition plate; 55. Screw; 56. Sleeve plate; 57. Vertical rod; 58. Moving plate; 59. Rubber limiting block. Detailed Implementation

[0016] 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.

[0017] Example: Figure 1-3 As shown, this utility model provides an intelligent anti-sway device for a crane, including a horizontal plate 1, a clamping assembly 2 fixedly mounted on the horizontal plate 1, a hydraulic cylinder 3 fixedly mounted on the lower surface of the horizontal plate 1, a lifting fixing component 11 fixedly mounted on the horizontal plate 1, a first fixing block 31 mounted at the output end of the hydraulic cylinder 3, a grab hook 32 rotatably mounted on the first fixing block 31, a rotating shaft 33 rotatably mounted inside the grab hook 32, a rotating connecting rod 34 connecting the rotating shaft 33 and the horizontal plate 1, and an anti-shake assembly 4 mounted on the grab hook 32. By activating the hydraulic cylinder 3, the first fixing block 31 is pulled upward, and in conjunction with the rotating connecting rod 34, the grab hook 32 can rotate to clamp the goods.

[0018] The clamping assembly 2 includes a fixing plate 21, which is fixedly connected to the lower surface of the horizontal plate 1. A rectangular groove 22 is formed on the lower surface of the fixing plate 21. A lead screw 23 is rotatably mounted within the rectangular groove 22. A rectangular block 24 is threaded onto the outer surface of the lead screw 23. The rectangular block 24 slides against the inner surface of the rectangular groove 22. A fixing rod 25 is fixedly mounted on the lower surface of the rectangular block 24. A clamping block 26 is fixedly mounted at the other end of the fixing rod 25. The fixing rod 25 has an "L"-shaped cross-section. The clamping block 26 and the gripper hook 3... The outer surface of 2 is movable and fits together. A double-headed motor 28 is fixedly installed inside the horizontal plate 1. The output end of the double-headed motor 28 is provided with a connecting rod 281. The output end of the connecting rod 281 is fixedly connected to one end of the lead screw 23. By starting the double-headed motor 28, the lead screw 23 connected to its output end can be rotated. The rectangular block 24 sleeved on the outer surface of the lead screw 23 moves to one side of the double-headed motor 28. The clamping block 26 can be made to fit with the outer surface of the gripper hook 32 through the vertical rod 57, so as to prevent the gripper hook 32 from shaking or loosening during the transportation of goods.

[0019] The horizontal plate 1 has a circular groove 27 inside, and the dual-head motor 28 is fixedly installed inside the circular groove 27 to facilitate the placement of the dual-head motor 28. There are two fixing plates 21, and the fixing plates 21 are symmetrically arranged on the lower surface of the horizontal plate 1 to facilitate the operation of the grab hook 32.

[0020] The limiting component 5 includes a cylinder 51, inside which a hook 32 is inserted. A second fixing block 52 is fixed inside the cylinder 51, and a drive motor 53 is fixed to the upper surface of the second fixing block 52. A partition 54 is fixed to the inner surface of the cylinder 51 near the hook 32. A screw 55 is rotatably mounted between the second fixing block 52 and the partition 54. The output end of the drive motor 53 is fixedly connected to the upper end of the screw 55. A sleeve 56 is threaded onto the outer surface of the screw 55, and the sleeve 56 slides against the inner surface of the cylinder 51. The sleeve 56 is fixedly provided with a vertical rod 57 on one side, which movably passes through the partition 54. A movable disk 58 is fixedly provided on one side of the vertical rod 57, and a rubber limiting block 59 is fixedly provided on the side of the movable disk 58 away from the vertical rod 57. The drive motor 53 can be started to drive the screw 55 to rotate. The rotation of the screw 55 can cause the sleeve 56, which is sleeved on its outer surface, to slide along the inner surface of the cylinder 51. The vertical rod 57 can drive the movable disk 58 to move, so that the rubber limiting block 59 can come into contact with the goods and limit the goods to prevent them from falling.

[0021] Two vertical rods 57 are provided, and the vertical rods 57 are symmetrically arranged on one side of the sleeve plate 56 to improve the stability during connection.

[0022] Working principle: When in use, this utility model can be activated by starting the hydraulic cylinder 3 to pull the first fixed block 31 upward, and in conjunction with the rotating connecting rod 34, the grab hook 32 can be rotated to clamp the goods.

[0023] Then, by starting the dual-head motor 28, the output end of the lead screw 23 can be rotated. The rectangular block 24 sleeved on the outer surface of the lead screw 23 moves to one side of the dual-head motor 28. The vertical rod 57 can make the clamping block 26 fit against the outer surface of the grab hook 32, preventing the grab hook 32 from shaking or loosening during the grabbing and transportation of goods.

[0024] Alternatively, the drive motor 53 can be started to drive the screw 55 to rotate. The rotation of the screw 55 can cause the sleeve plate 56, which is fitted on its outer surface, to slide along the inner surface of the cylinder 51. The vertical rod 57 can drive the moving disk 58 to move, so that the rubber limiting block 59 can come into contact with the goods, limit the goods, and prevent the goods from falling.

[0025] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A crane intelligent anti-swing device comprising a cross plate (1), characterized in that, A clamping assembly (2) is fixedly provided on the horizontal plate (1). A hydraulic cylinder (3) is fixedly provided on the lower surface of the horizontal plate (1). A first fixing block (31) is provided at the output end of the hydraulic cylinder (3). A grab hook (32) is rotatably provided on the first fixing block (31). There are two grab hooks (32), and the grab hooks (32) are symmetrically arranged on the first fixing block (31). A rotating shaft (33) is rotatably provided inside the grab hook (32). A rotating connecting rod (34) is connected between the rotating shaft (33) and the horizontal plate (1). An anti-shake assembly (4) is provided on the grab hook (32). The clamping assembly (2) includes a fixing plate (21), which is fixedly connected to the lower surface of the horizontal plate (1). A rectangular groove (22) is provided on the lower surface of the fixing plate (21). A lead screw (23) is rotatably provided in the rectangular groove (22). A rectangular block (24) is threaded on the outer surface of the lead screw (23). The rectangular block (24) slides against the inner surface of the rectangular groove (22). A fixing rod (25) is fixedly provided on the lower surface of the rectangular block (24). A clamping block (26) is fixedly provided at the other end of the fixing rod (25). The clamping block (26) is movably against the outer surface of the grab hook (32). A double-headed motor (28) is fixedly provided inside the horizontal plate (1). A connecting rod (281) is provided at the output end of the double-headed motor (28). The output end of the connecting rod (281) is fixedly connected to one end of the lead screw (23).

2. A crane intelligent anti-swing device according to claim 1, characterized in that, The outer side of the grab hook (32) is provided with a limiting component (5), the limiting component (5) includes a cylinder (51), the grab hook (32) is inserted inside the cylinder (51), a second fixing block (52) is fixed inside the cylinder (51), a drive motor (53) is fixed on the upper surface of the second fixing block (52), a partition plate (54) is fixed on the inner surface of the cylinder (51) near the grab hook (32), and a screw (55) is rotatably provided between the second fixing block (52) and the partition plate (54). The output end of the drive motor (53) is fixedly connected to the upper end of the screw (55). A sleeve plate (56) is threaded on the outer surface of the screw (55). The sleeve plate (56) slides against the inner surface of the cylinder (51). A vertical rod (57) is fixedly provided on one side of the sleeve plate (56). The vertical rod (57) moves through the partition plate (54). A movable disk (58) is fixedly provided on one side of the vertical rod (57). A rubber limiting block (59) is fixedly provided on the side of the movable disk (58) away from the vertical rod (57).

3. A crane intelligent anti-swing device according to claim 1, characterized in that, The horizontal plate (1) has a circular groove (27) inside, and the dual-head motor (28) is fixedly installed inside the circular groove (27).

4. A crane intelligent anti-swing device according to claim 1, characterized in that, Two fixing plates (21) are provided, and the fixing plates (21) are symmetrically arranged on the lower surface of the horizontal plate (1).

5. The intelligent anti-sway device for a crane as described in claim 1, characterized in that, The cross-sectional shape of the fixing rod (25) is "L".

6. A crane intelligent anti-swing device according to claim 2, characterized in that, There are two vertical rods (57), and the vertical rods (57) are symmetrically arranged on one side of the sleeve plate (56).