Positioning anti-swing device of tower crane
By designing the base and support components of the tower crane positioning and anti-sway device, the problem of swaying during high-altitude lifting of items is solved, improving safety and operational accuracy while simplifying the operation of the support.
Patent Information
- Application Number
- CN202520533315.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-25
AI Technical Summary
Existing tower crane positioning and anti-sway devices cannot prevent the swaying of items when they are lifted to a high altitude, leading to safety risks, structural damage, and reduced operational accuracy.
The design incorporates components such as a base, support, balance arm, sliding plate, connecting block, fixing ring, and limiting rod. The cooperation of the limiting rod and fixing ring prevents the connecting block from swaying at high altitudes, and simplifies the operation of the support through assembly and disassembly.
It effectively prevents items from swaying at high altitudes, reduces safety risks, protects equipment safety, improves operational stability and accuracy, and simplifies the assembly and disassembly process of the support frame.
Smart Images
Figure CN223866251U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tower crane technology, and in particular to a tower crane positioning and anti-sway device. Background Technology
[0002] Tower cranes, as large lifting equipment, are widely used in construction (including high-rise buildings and bridge construction), port operations (cargo loading and unloading and equipment installation and maintenance), mining (ore hoisting and equipment installation and dismantling), and industrial production (large equipment installation and workshop material handling). With advantages such as high lifting height, large working radius, and strong load-bearing capacity, they play a vital role in various fields, providing efficient transportation, precise positioning, ensuring equipment operation, reducing costs, and optimizing processes. Tower cranes are equipped with positioning and anti-sway devices to prevent objects from falling and stabilize the crane structure from a safety perspective. From an operational accuracy perspective, they help to accurately reach the target position, reduce adjustment time, and cope with the effects of wind in complex environments and working conditions, meeting special working requirements, thus comprehensively improving the safety, efficiency, and accuracy of crane operations.
[0003] Tower crane positioning and anti-sway devices generally consist of detection sensors, control devices, and actuators. The tower crane positioning and anti-sway devices acquire real-time status data such as the swing angle and acceleration of the suspended load through angle and acceleration detection sensors and transmit them to the control device. The control device processes the signals using algorithms such as Kalman filtering and then uses algorithms such as model predictive control to calculate the control quantity. The driver then drives the luffing, hoisting, and slewing actuators to reduce or eliminate the swing of the suspended load by changing the boom amplitude, hoisting speed, and boom rotation angle, respectively, ensuring safe and efficient operation.
[0004] Existing anti-sway positioning devices for some tower cranes cannot prevent swaying when items are hoisted to a height. Because these devices cannot prevent swaying, they have several drawbacks. In terms of safety, swaying poses a risk of items falling, and the additional impact and torque can damage the crane structure, reducing stability and safety, and shortening its service life. In terms of operational accuracy, swaying causes positioning deviations, affecting the quality of construction and equipment installation projects, and can also easily lead to collisions with surrounding objects, interfering with subsequent processes. Therefore, a new anti-sway positioning device for tower cranes is proposed to solve these problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a tower crane positioning and anti-sway device, which aims to improve the problem that the existing technology cannot avoid swaying when the items are lifted to a high altitude.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A tower crane positioning and anti-sway device includes a base, a bracket slidably connected to the top of the base, a counterweight boom rotatably connected to the top of the bracket, a sliding plate slidably connected to the outer side of the counterweight boom, a connecting block slidably connected to the bottom of the sliding plate, fixing rings fixedly connected to both sides of the connecting block, a limiting ring fixedly connected inside the fixing ring, a limiting rod fixedly connected inside the limiting ring, and connecting components slidably connected inside multiple brackets.
[0008] As a further description of the above technical solution:
[0009] The connecting assembly includes multiple housings, with a sliding rod slidably connected inside the housing, multiple rotating plates rotatably connected to the outside of the sliding rod, and a spring fixedly connected to the bottom of the sliding rod.
[0010] As a further description of the above technical solution:
[0011] The other end of the second spring is fixedly connected to the inside of the outer casing, and a connecting ring is fixedly connected to the outside of the outer casing;
[0012] As a further description of the above technical solution:
[0013] Multiple springs are fixedly connected to the outer side of the sliding rod, and a rotating plate is fixedly connected to the other end of each spring.
[0014] As a further description of the above technical solution:
[0015] A hollow column is fixedly connected inside the connecting block, and the outer side of the limiting rod is slidably connected inside the hollow column;
[0016] As a further description of the above technical solution:
[0017] The bottom of the connecting block is fixedly connected to a hook, and the top of the balance arm is fixedly connected to a control room;
[0018] As a further description of the above technical solution:
[0019] The outer side of the rotating plate is slidably connected to the inside of the outer casing, and the bottom of the connecting ring is slidably connected to the outer side of the bracket;
[0020] As a further description of the above technical solution:
[0021] The outer casing has a sliding groove inside, and the multiple brackets have holes inside.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, a connecting block works in conjunction with a fixing ring, which in turn works in conjunction with a limiting rod, and the limiting rod in conjunction with the limiting ring. This prevents the hook from swaying when lifting items to a height. During high-altitude operations, swaying items can cause them to fall off the hook, leading to safety accidents. Preventing swaying effectively reduces this risk, protects the safety of personnel and equipment on the ground, and also reduces the additional stress and wear on the crane's structural components caused by swaying. This reduces the likelihood of crane malfunctions or damage and ensures the safety and stability of the entire lifting operation.
[0024] 2. In this utility model, the outer shell is used in conjunction with a sliding rod, the sliding rod is used in conjunction with a rotating plate, and the rotating plate is used in conjunction with a spring, thereby enabling the assembly or disassembly of multiple brackets. This assembly and disassembly method only requires sliding the sliding rod, and the brackets can be connected or separated through the cooperation of the rotating plate and the spring. There is no need to use complicated tools or perform tedious operation steps, which greatly improves work efficiency and saves assembly and disassembly time. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a tower crane positioning and anti-sway device proposed in this utility model;
[0026] Figure 2 This is a structural schematic diagram of the support frame for a tower crane positioning and anti-sway device proposed in this utility model;
[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0028] Figure 4 for Figure 2 Enlarged view of point B in the middle.
[0029] Legend:
[0030] 1. Base; 2. Bracket; 3. Balance boom; 4. Control room; 5. Sliding plate; 6. Connecting block; 7. Fixing ring; 8. Restricting ring; 9. Restricting rod; 10. Hollow column; 11. Hook; 12. Outer shell; 13. Sliding rod; 14. Spring 1; 15. Rotating plate; 16. Spring 2; 17. Connecting ring. Detailed Implementation
[0031] 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.
[0032] Reference Figure 1, Figure 2 and Figure 4 This utility model provides an embodiment of a tower crane positioning and anti-sway device, comprising a sturdy and durable base 1 made of high-strength steel, with a precision slide rail on its top, allowing parts to slide smoothly along the slide rail. Multiple brackets 2 are slidably connected to the top of the base 1, the brackets 2 being cuboid in shape, with evenly spaced circular holes inside. The dimensions of these holes are precisely designed to facilitate the installation of subsequent connecting components. A counterweight boom 3 is rotatably connected to the top of the brackets 2 via a specially designed rotating shaft. This rotating shaft can withstand a large torque, ensuring the counterweight boom 3 can rotate flexibly. A control room 4 is fixedly connected to the top of the counterweight boom 3. The control room 4 is ergonomically designed, providing operators with a comfortable working environment and good visibility.
[0033] The outer side of the balance boom 3 is equipped with a track, and the sliding plate 5 is slidably connected on the track by rollers to ensure smooth and precise sliding. The bottom of the sliding plate 5 is slidably connected to a connecting block 6, which is connected by a slider and a steel cable, allowing for flexible adjustment of the height position. The bottom of the connecting block 6 is firmly connected to a hook 11, which is made of high-toughness alloy steel and can safely bear heavy objects. The inside of the connecting block 6 is fixedly connected to a hollow column 10, which provides guidance for the sliding of the limiting rod 9. The two sides of the connecting block 6 are fixedly connected to fixing rings 7, which are used to install parts and provide an installation base for the limiting rod 9.
[0034] A limiting ring 8 is fixedly connected inside the fixed ring 7. The limiting ring 8 can limit the range of motion of the limiting rod 9. The limiting rod 9 is fixedly connected inside the limiting ring 8. When the connecting block 6 descends, the limiting rod 9 slides downward accordingly, which can effectively prevent the connecting block 6 from swaying at high altitude. The outer side of the limiting rod 9 is slidably connected inside the hollow column 10. The hollow column 10 can guide the sliding direction of the limiting rod 9. Multiple brackets 2 are slidably connected inside the connecting components.
[0035] Reference Figures 1 to 3 The connecting assembly includes multiple housings 12, which are made of high-strength plastic and have good pressure resistance and wear resistance. The interior of the housing 12 is provided with a sliding groove, the size of which is precisely matched with the sliding rod 13 to ensure that the sliding rod 13 can slide smoothly in it. The sliding rod 13 is slidably connected inside the housing 12. The sliding of the sliding rod 13 in the sliding groove can control the position of the rotating plate 15. Multiple rotating plates 15 are rotatably connected to the outside of the sliding rod 13. The rotating plates 15 can rotate around the sliding rod 13 to realize the connection and separation with the bracket 2.
[0036] Multiple springs 14 are fixedly connected to the outer side of the sliding rod 13. The springs 14 have strong elasticity and can provide an outward ejection force for the rotating plate 15. The other end of the springs 14 is fixedly connected to the rotating plate 15. When the sliding rod 13 slides, the springs 14 can push the rotating plate 15 to move. The outer side of the rotating plate 15 is slidably connected to the inside of the outer shell 12. When the bracket 2 is not connected, the rotating plate 15 can be stored in the outer shell 12. The bottom of the sliding rod 13 is fixedly connected to the second spring 16. The second spring 16 can play a buffering role when the sliding rod 13 is compressed to avoid excessive displacement. The other end of the second spring 16 is fixedly connected to the inside of the outer shell 12 to provide fixed support for the second spring 16. The outer side of the outer shell 12 is fixedly connected to the connecting ring 17. The connecting ring 17 is used to cooperate with the bracket 2 to enhance the stability of the connection. The bottom of the connecting ring 17 is slidably connected to the outside of the bracket 2 and can be moved and adjusted on the outside of the bracket 2.
[0037] Working principle: When the operator needs to assemble the bracket 2, multiple brackets 2 can be stacked. Then, the sliding rod 13 is slid into the hole inside the bracket 2. When the sliding rod 13 slides into the hole inside the bracket 2, multiple rotating plates 15 slidably connected inside the outer shell 12 will be squeezed into the inner wall of the bracket 2. When the rotating plate 15 passes through the hole inside the bracket 2, the rotating plate 15 will be pushed out of the inner shell 12 by the compressed spring 14, so that the outer side of the rotating plate 15 is lower than the outer side of the bracket 2. At this time, the rotating plate 15... The cooperation of the 5 and the connecting ring 17 can bind the two brackets 2 together, thereby connecting the two brackets 2. When it is necessary to separate the two brackets 2, the sliding rod 13 can be pressed into the inside of the outer shell 12, so that the sliding rod 13 slides into the inside of the outer shell 12. By moving the multiple rotating plates 15 together into the inside of the outer shell 12, the multiple rotating plates 15 will be compressed into the inside of the sliding rod 13 by the inner wall of the outer shell 12, so that the rotating plates 15 slide into the inside of the outer shell 12 again. At this time, the sliding rod 13 can be removed from the inside of the bracket 2, thereby realizing the disassembly or installation of the bracket 2.
[0038] Once the tower crane is assembled, the items can be lifted to the designated location. When the connecting block 6 is lowered, both sides of the connecting block 6 will be pulled down at the same time, and the limiting rod 9 inside the fixing ring 7 will also be pulled down. As it slides down, the limiting rod 9 will also be pulled down. At this time, the limiting rod 9 can be used to prevent the connecting block 6 from swaying at high altitude. The limiting rod 9 will be fixed inside the fixing ring 7 by the limiting ring 8.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 positioning and anti-sway device for a tower crane, comprising a base (1), characterized in that: The base (1) is slidably connected to the top of a bracket (2), the top of the bracket (2) is rotatably connected to a balance arm (3), the outer side of the balance arm (3) is slidably connected to a sliding plate (5), the bottom of the sliding plate (5) is slidably connected to a connecting block (6), the two sides of the connecting block (6) are fixedly connected to a fixing ring (7), the inside of the fixing ring (7) is fixedly connected to a limiting ring (8), the inside of the limiting ring (8) is fixedly connected to a limiting rod (9), and multiple brackets (2) are slidably connected to a connecting assembly.
2. The tower crane positioning and anti-sway device according to claim 1, characterized in that: The connecting assembly includes multiple housings (12), with a sliding rod (13) slidably connected inside the housing (12), multiple rotating plates (15) rotatably connected to the outside of the sliding rod (13), and a spring (16) fixedly connected to the bottom of the sliding rod (13).
3. A tower crane positioning and anti-sway device according to claim 2, characterized in that: The other end of the second spring (16) is fixedly connected to the inside of the outer shell (12), and a connecting ring (17) is fixedly connected to the outside of the outer shell (12).
4. A tower crane positioning and anti-sway device according to claim 2, characterized in that: Multiple springs (14) are fixedly connected to the outside of the sliding rod (13), and a rotating plate (15) is fixedly connected to the other end of the springs (14).
5. A tower crane positioning and anti-sway device according to claim 2, characterized in that: A hollow column (10) is fixedly connected inside the connecting block (6), and the outer side of the limiting rod (9) is slidably connected inside the hollow column (10).
6. A tower crane positioning and anti-sway device according to claim 1, characterized in that: The bottom of the connecting block (6) is fixedly connected to a hook (11), and the top of the balance arm (3) is fixedly connected to a control room (4).
7. A tower crane positioning and anti-sway device according to claim 3, characterized in that: The outer side of the rotating plate (15) is slidably connected to the inside of the outer shell (12), and the bottom of the connecting ring (17) is slidably connected to the outer side of the bracket (2).
8. A tower crane positioning and anti-sway device according to claim 2, characterized in that: The interior of the outer shell (12) is provided with a sliding groove, and the interior of the plurality of brackets (2) is provided with holes.