A crane multi-lifting point balance adjusting device
By introducing angle adjustment components and sliding constraint components into the multi-point lifting balance adjustment device of the crane, the problems of difficult lifting angle adjustment and non-vertical wire rope are solved, thus achieving stability and safety in the lifting process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG TAISHAN HOISTING MASCH CO LTD
- Filing Date
- 2025-07-13
- Publication Date
- 2026-07-07
AI Technical Summary
Existing crane multi-point balance adjustment devices are difficult to adjust and change the lifting angle, and it is difficult to keep the wire rope and the lifting point vertical, resulting in imbalance and wire rope entanglement and deviation during the lifting process.
A crane multi-point balance adjustment device was designed, which includes an angle adjustment component and a sliding constraint component. The rotating rod drives the multi-groove plate and the balance adjustment device to rotate synchronously, changing the position of the wire rope in the lifting beam tube. The pull rope is released by the wire feeding wheel, which drives the constraint plate to move downward along the wire rope to maintain the verticality between the wire rope and the lifting point.
It enables flexible adjustment of the lifting angle and stability of the wire rope, preventing entanglement or deviation, and improving the safety and stability of crane lifting.
Smart Images
Figure CN224467350U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of balance adjustment devices, specifically a multi-point balance adjustment device for cranes. Background Technology
[0002] Cranes are often used in many large equipment installations, bridge constructions, port loading and unloading, etc., to lift large, heavy or irregularly shaped objects together. However, during multi-point lifting, uneven force on each lifting point and shift of the equipment's center of gravity can easily lead to imbalance during the lifting process, which can then cause safety accidents or equipment damage. In order to ensure the smoothness and safety of the lifting process, balance adjustment devices are usually used.
[0003] In practical use, the balance adjustment device may need to change the lifting angle of the object being lifted. Since most balance adjustment devices are fixed structures, it is difficult to adjust and change the lifting angle, which is inconvenient for practical use. At the same time, it is difficult to keep the part between the wire rope and the lifting point vertical during lifting, which may cause the wire rope to become entangled or deviate. Utility Model Content
[0004] To address the challenges of adjusting and changing the hoisting angle and maintaining the verticality of the section between the wire rope and the hoisting point, this invention aims to provide a multi-point hoisting balance adjustment device for cranes.
[0005] To solve the above technical problems, this utility model adopts the following technical solution: a multi-point balancing adjustment device for a crane, comprising a balancing adjustment device body and a placement plate, wherein an angle adjustment component is provided between the outer surface of the balancing adjustment device body and the outer surface of the placement plate, and a sliding constraint component is provided on the outer surface of the balancing adjustment device body; the angle adjustment component includes a rotating rod, a first annular groove is formed at the top of the balancing adjustment device body, an arc-shaped plate is symmetrically slidably connected inside the first annular groove, a disc is fixedly connected to the outer surface of the arc-shaped plate, the top of the disc is fixedly connected to the outer surface of the placement plate, and a motor is fixedly connected to the top of the placement plate. A first gear is fixedly connected to one end of the machine output shaft, a second gear is fixedly connected to the outer surface of the rotating rod, a multi-slot plate is fixedly connected to the top of the rotating rod, a crane lifting beam tube is rotatably connected to the outer surface of the multi-slot plate, a second annular groove is opened inside the crane lifting beam tube, a plurality of evenly distributed sliders are slidably connected inside the second annular groove, the outer surface of the sliders is fixedly connected to the outer surface of the multi-slot plate, the outer surface of the rotating rod is rotatably connected to the middle of the placement plate, the outer surface of the rotating rod is rotatably connected to the middle of the disc, the bottom end of the rotating rod is fixedly connected to the middle of the main body of the balance adjustment device, and the outer surfaces of the first gear and the second gear mesh.
[0006] Preferably, the sliding constraint assembly includes a constraint plate, on the outer surface of which a plurality of evenly distributed steel wire ropes are slidably connected. The outer surface of the main body of the balance adjustment device has a plurality of evenly distributed through slots. A fixed rod is rotatably connected inside the through slots. A roller is fixedly connected to the outer surface of the fixed rod. A wire feeding wheel is fixedly connected to the outer surface of the fixed rod. A connecting column is fixedly connected to the bottom end of the main body of the balance adjustment device. The outer surface of the connecting column has a plurality of evenly distributed first sliding grooves. The interior of the first sliding grooves is slidably connected to the outer surface of the constraint plate. A pulling rope is fixedly connected inside the wire feeding wheel. The end of the pulling rope away from the wire feeding wheel is fixedly connected to the top of the constraint plate. The steel wire rope is located inside the crane lifting beam tube and passes through the multi-slot plate. The outer surface of the steel wire rope is in contact with the outer surface of the roller.
[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0008] 1. By setting an angle adjustment component, the rotation of the rotating rod drives the multi-groove plate and the main body of the balance adjustment device to rotate synchronously. The rotation of the multi-groove plate can drive the wire rope to rotate and change position inside the crane beam tube, so that the main body of the balance adjustment device can change the lifting angle of the object being lifted, thus improving the practicality of the device.
[0009] 2. By setting up a sliding constraint component, the rotation of the wire feeding wheel will release the pulling rope and drive the constraint plate to move downward along the wire rope, thereby ensuring that the part between the wire rope and the lifting point remains vertical and preventing the wire rope from getting tangled or deviating. Attached Figure Description
[0010] 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.
[0011] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;
[0012] Figure 2 This is a schematic cross-sectional view of the main body of the balance adjustment device proposed in this utility model;
[0013] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;
[0014] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point B;
[0015] Figure 5 This is a schematic diagram of the cross-sectional structure of the crane lifting beam tube proposed in this utility model;
[0016] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point C.
[0017] In the diagram: 1. Crane lifting beam pipe; 2. Main body of balance adjustment device; 3. Wire rope; 4. Motor; 5. Placement plate; 6. First annular groove; 7. Through groove; 8. Arc plate; 9. Disc; 10. Rotating rod; 11. Constraint plate; 12. Wire feeding wheel; 13. Fixed rod; 14. Pulling rope; 15. Roller; 16. Second gear; 17. First gear; 18. Second annular groove; 19. Sliding block; 20. Multi-groove plate; 21. Connecting column; 22. First sliding groove. Detailed Implementation
[0018] 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.
[0019] Example: Figure 1-6As shown, this utility model provides a multi-point balancing adjustment device for a crane, including a balancing adjustment device body 2 and a placement plate 5. An angle adjustment component is provided between the outer surface of the balancing adjustment device body 2 and the outer surface of the placement plate 5. A sliding constraint component is provided on the outer surface of the balancing adjustment device body 2. The angle adjustment component includes a rotating rod 10. A first annular groove 6 is opened at the top of the balancing adjustment device body 2. An arc plate 8 is symmetrically slidably connected inside the first annular groove 6. A disc 9 is fixedly connected to the outer surface of the arc plate 8. The top of the disc 9 is fixedly connected to the outer surface of the placement plate 5. A motor 4 is fixedly connected to the top of the placement plate 5. A first gear 17 is fixedly connected to one end of the output shaft of the motor 4. A second gear 16 is fixedly connected to the outer surface of the rotating rod 10. A multi-grooved plate 20 is fixedly connected to the top of the rotating rod 10. A crane lifting beam tube 1 is rotatably connected to the outer surface of the multi-grooved plate 20. The balancing adjustment device body 2 is the prior art (internally equipped with: a force sensor for real-time monitoring of the force on each lifting point, converting the force data into an electrical signal, and transmitting it to the control system for processing; a position sensor for detecting...). The displacement of the lifting points helps the control system understand the dynamic changes of the suspended object so as to adjust the balance in a timely manner. By setting a rotating rod 10, the rotation of the rotating rod 10 drives the multi-groove plate 20 and the main body 2 of the balance adjustment device to rotate synchronously. The rotation of the multi-groove plate 20 can drive the wire rope 3 to rotate and change position inside the crane beam tube 1, so that the main body 2 of the balance adjustment device can change the lifting angle of the object. The crane beam tube 1 has a second annular groove 18 inside, and multiple evenly distributed sliders are slidably connected inside the second annular groove 18. 19. The outer surface of slider 19 is fixedly connected to the outer surface of multi-grooved plate 20, allowing multi-grooved plate 20 to rotate inside crane beam tube 1. The outer surface of rotating rod 10 is rotatably connected to the middle of placement plate 5 and the middle of disk 9. The bottom end of rotating rod 10 is fixedly connected to the middle of balance adjustment device body 2, so that rotation of rotating rod 10 can drive balance adjustment device body 2 to rotate. The outer surface of first gear 17 meshes with the outer surface of second gear 16, so that rotation of first gear 17 can drive rotation of second gear 16.
[0020] The sliding constraint assembly includes a constraint plate 11, on the outer surface of which multiple evenly distributed steel wire ropes 3 are slidably connected. The outer surface of the balance adjustment device body 2 has multiple evenly distributed through slots 7, with a fixed rod 13 rotatably connected inside each slot 7. A roller 15 is fixedly connected to the outer surface of the fixed rod 13, and a feed wheel 12 is fixedly connected to the outer surface of the fixed rod 13. A connecting post 21 is fixedly connected to the bottom of the balance adjustment device body 2. The outer surface of the connecting post 21 has multiple evenly distributed first sliding grooves 22, which are slidably connected to the outer surface of the constraint plate 11. By setting the constraint plate 11, the rotation of the feed wheel 12 releases the pulling rope 1. 4. The constraint plate 11 moves downward along the wire rope 3, thus ensuring that the part between the wire rope 3 and the lifting point remains vertical. A pull rope 14 is fixedly connected inside the wire feeding wheel 12. The end of the pull rope 14 away from the wire feeding wheel 12 is fixedly connected to the top of the constraint plate 11. Rotating the wire feeding wheel 12 can release the pull rope 14, which can drive the constraint plate 11 to slide downward. The wire rope 3 is located inside the crane lifting beam tube 1 and passes through the multi-grooved plate 20. Rotating the multi-grooved plate 20 can drive the wire rope 3 to rotate and change position inside the crane lifting beam tube 1. The outer surface of the wire rope 3 contacts the outer surface of the roller 15. Extending the wire rope 3 can drive the roller 15 to rotate.
[0021] Working principle: When the main body 2 of the balance adjustment device needs to change the lifting angle of the object being hoisted, the operator starts the motor 4. The output shaft of the motor 4 rotates, which drives the first gear 17 to rotate. The rotation of the first gear 17 drives the second gear 16 to rotate. The rotation of the second gear 16 drives the rotating rod 10 to rotate in the middle of the placement plate 5 and the disc 9. The rotation of the rotating rod 10 drives the multi-groove plate 20 and the main body 2 of the balance adjustment device to rotate synchronously. The rotation of the multi-groove plate 20 drives the slider 19 to slide along the inside of the second annular groove 18. At the same time, the rotation of the multi-groove plate 20 can drive the wire rope 3 to rotate and change its position inside the crane lifting beam tube 1. The rotation of the main body 2 of the balance adjustment device will cause the arc plate 8 to slide along the inside of the first annular groove 6. Thus, the main body 2 of the balance adjustment device can change the lifting angle of the object being hoisted, improving the practicality of the device.
[0022] When balanced hoisting is required, the force sensor and position sensor inside the main body 2 of the balance adjustment device will monitor the force and displacement of each hoisting point in real time, so as to control the extension of the wire rope 3 to adjust the balance. The extension of the wire rope 3 will pass through the inside of the multi-groove plate 20 and drive the roller 15 to rotate. The rotation of the roller 15 will drive the fixed rod 13 to rotate. The rotation of the fixed rod 13 will drive the wire feeding wheel 12 to rotate. The rotation of the wire feeding wheel 12 will release the pulling rope 14. The release of the pulling rope 14 will cause the constraint plate 11 to move downward along the wire rope 3. The movement of the constraint plate 11 will move along the inside of the first sliding groove 22 on the connecting column 21, thereby ensuring that the part between the wire rope 3 and the hoisting point remains vertical and preventing the wire rope 3 from getting tangled or deviating.
[0023] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0024] 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 multi-point balancing adjustment device for a crane, comprising a main body (2) of the balancing adjustment device and a placement plate (5), characterized in that: An angle adjustment component is provided between the outer surface of the main body (2) of the balance adjustment device and the outer surface of the placement plate (5), and a sliding constraint component is provided on the outer surface of the main body (2) of the balance adjustment device. The angle adjustment assembly includes a rotating rod (10). The top of the main body (2) of the balance adjustment device is provided with a first annular groove (6). An arc plate (8) is symmetrically slidably connected inside the first annular groove (6). A disc (9) is fixedly connected to the outer surface of the arc plate (8). The top of the disc (9) is fixedly connected to the outer surface of the placement plate (5). A motor (4) is fixedly connected to the top of the placement plate (5). A first gear (17) is fixedly connected to one end of the output shaft of the motor (4). A second gear (16) is fixedly connected to the outer surface of the rotating rod (10). A multi-slot plate (20) is fixedly connected to the top of the rotating rod (10). A crane lifting beam pipe (1) is rotatably connected to the outer surface of the multi-slot plate (20).
2. The crane multi-point balance adjustment device as described in claim 1, characterized in that, The sliding constraint assembly includes a constraint plate (11), on the outer surface of the constraint plate (11) are slidably connected a plurality of evenly distributed steel wire ropes (3), on the outer surface of the main body (2) of the balance adjustment device are provided with a plurality of evenly distributed through grooves (7), inside the through grooves (7) are rotatably connected a fixed rod (13), on the outer surface of the fixed rod (13) are fixedly connected a roller (15), on the outer surface of the fixed rod (13) are fixedly connected a wire feeding wheel (12), at the bottom end of the main body (2) of the balance adjustment device are fixedly connected a connecting column (21), on the outer surface of the connecting column (21) are provided a plurality of evenly distributed first sliding grooves (22), inside the first sliding grooves (22) are slidably connected to the outer surface of the constraint plate (11).
3. A crane multi-point balance adjustment device as described in claim 2, characterized in that, The inside of the wire feeding reel (12) is fixedly connected to a pull rope (14), and the end of the pull rope (14) away from the wire feeding reel (12) is fixedly connected to the top of the constraint plate (11).
4. The crane multi-point balance adjustment device as described in claim 1, characterized in that, The crane lifting beam tube (1) has a second annular groove (18) inside, and a number of evenly distributed sliders (19) are slidably connected inside the second annular groove (18). The outer surface of the sliders (19) is fixedly connected to the outer surface of the multi-groove plate (20).
5. A crane multi-point balance adjustment device as described in claim 1, characterized in that, The outer surface of the rotating rod (10) is rotatably connected to the middle of the placement plate (5), the outer surface of the rotating rod (10) is rotatably connected to the middle of the disc (9), and the bottom end of the rotating rod (10) is fixedly connected to the middle of the main body (2) of the balance adjustment device.
6. A crane multi-point balance adjustment device as described in claim 1, characterized in that, The outer surface of the first gear (17) meshes with the outer surface of the second gear (16).
7. A crane multi-point balance adjustment device as described in claim 2, characterized in that, The wire rope (3) is located inside the crane lifting beam tube (1) and passes through the multi-groove plate (20).
8. A crane multi-point balance adjustment device as described in claim 2, characterized in that, The outer surface of the wire rope (3) is in contact with the outer surface of the roller (15).