A crane track anti-sway device
By employing a hydraulically driven anti-sway mechanism and airbag clamping components on the overhead crane's running track, rapid response and flexible adaptation to the wire rope are achieved, solving the problems of poor adaptability and insufficient linkage of existing devices, and improving the anti-sway effect and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN KAIDI ENVIRONMENTAL TECHNOLOGY CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-07-03
AI Technical Summary
During the operation of existing overhead cranes, the anti-sway devices have poor adaptability, are prone to wear on the wire ropes, and lack sufficient linkage with the crane operation, resulting in poor anti-sway effect, especially posing safety hazards under heavy loads or high-speed operation.
The anti-sway mechanism adopts a gantry crane, side plates, moving components, tilting components and airbags. The horizontal push block and tilting components are driven by hydraulic telescopic rods, and the airbags are inflated to clamp the wire rope, so as to achieve rapid response and flexible clamping, and adapt to wire ropes of different diameters.
It effectively solves the problems of poor adaptability and slow response of traditional devices, improves anti-sway stability, reduces the risk of heavy object swaying and wire rope breakage, and extends the service life of wire rope.
Smart Images
Figure CN224450079U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crane operation safety equipment, and in particular to a crane track anti-sway device. Background Technology
[0002] Overhead cranes are commonly used lifting equipment in industrial production. They transfer materials by suspending heavy objects with steel wire ropes and moving them along tracks. The stable operation of the steel wire ropes directly affects the safety and accuracy of the operation.
[0003] During the operation of existing overhead cranes, the wire ropes are prone to significant swaying due to changes in lifting height, load fluctuations, or the inertia of the track. On the one hand, traditional anti-sway devices mostly use a single rigid clamping structure with a fixed clamping force, which cannot be adapted to wire ropes of different diameters. Moreover, rigid contact easily causes wear on the wire ropes, shortening their service life. On the other hand, existing devices lack a linkage mechanism with the crane's operating status, resulting in a delayed clamping response and difficulty in quickly intervening in the early stages of swaying. This leads to poor anti-sway performance, especially under heavy loads or high-speed operation scenarios, where swaying may cause the heavy objects to shake, collide with surrounding equipment, or even cause safety accidents such as wire rope breakage. Utility Model Content
[0004] In view of the problems of poor adaptability of anti-sway devices, easy wear of steel wire ropes and insufficient linkage with crane operation in the above-mentioned or existing technologies, resulting in poor anti-sway effect and thus causing safety hazards, this utility model is proposed.
[0005] To solve the above technical problems, the present invention provides the following technical solution: an anti-sway mechanism, which includes a gantry crane and a wire rope. Side plates are fixedly provided on both sides of the gantry crane. A moving component is provided on each side plate. A flipping component is provided at the lower end of the moving component. A first clamping component for clamping the wire rope to prevent swaying is provided on the opposite side of the flipping component.
[0006] The fixing mechanism includes two sets of airbags for further clamping and fixing the wire rope, each airbag being provided with a second clamping component for pushing the airbag to clamp the wire rope.
[0007] As a preferred embodiment of the anti-sway device for the overhead crane track of this utility model, the moving component includes a limiting groove opened on the inner side of the side plate, a roller is slidably arranged in the inner cavity of the limiting groove, a horizontal push block is rotatably arranged on the side of the roller away from the inner cavity of the limiting groove, and a hydraulic telescopic rod is fixedly arranged in the middle of the rear end of the horizontal push block.
[0008] As a preferred embodiment of the anti-sway device for the overhead crane track of this utility model, the overturning component includes a first connecting rod rotatably disposed at both ends of the horizontal push block, a first movable seat rotatably disposed at the end of the first connecting rod away from the horizontal push block, and a surrounding plate fixedly disposed at the end of the first movable seat away from the first connecting rod.
[0009] As a preferred embodiment of the anti-sway device for the overhead crane track of this utility model, the first clamping assembly includes a trapezoidal abutment block slidably disposed on the upper end of the first movable seat and abutting against the first connecting rod. A horizontal push rod is fixedly disposed in the middle of the surface of the trapezoidal abutment block away from the first connecting rod. A pressure plate for squeezing and fixing the wire rope is fixedly disposed at the end of the horizontal push rod away from the trapezoidal abutment block. An arc-shaped groove for wrapping the wire rope is opened on the surface of the pressure plate abutting against the wire rope.
[0010] As a preferred embodiment of the anti-sway device for the overhead crane running track of this utility model, wherein: the horizontal push rod movably penetrates the middle of the side wall of the enclosure, and a compression spring is sleeved on the outside of one end of the horizontal push rod penetrating the enclosure, and the two ends of the compression spring respectively abut against the back of the pressure plate and the surface of the enclosure away from the first connecting rod.
[0011] As a preferred embodiment of the anti-sway device for the overhead crane track of this utility model, the second clamping assembly includes an air pipe fixedly disposed on one side of the airbag and communicating with the inner cavity of the airbag. A cylinder is fixedly disposed at the other end of the air pipe. The inner cavity of the cylinder is communicating with the inner cavity of the air pipe, and piston rods are slidably disposed at both ends of the inner cavity of the cylinder. The piston rods are used to compress gas and deliver it into the airbag through the air inlet pipe.
[0012] As a preferred embodiment of the anti-sway device for the overhead crane track of this utility model, the second clamping assembly further includes a second connecting rod for following the movement of the surrounding plate and thus pushing the airbag to clamp the wire rope. The two ends of the second connecting rod are respectively fixedly provided with second movable seats on the back of the airbag and on the surface of the surrounding plate away from the first connecting rod.
[0013] The beneficial effects of this invention's anti-sway device for crane tracks are:
[0014] 1. Through the synergistic effect of the first clamping component and the fixing mechanism, the problems of poor adaptability and easy wear of steel wire rope in traditional anti-sway devices are effectively solved. The arc-shaped groove of the first clamping component can adapt to steel wire ropes of different diameters. Combined with the elastic buffer of the compression spring, it can avoid wear caused by rigid clamping. The air bladder of the fixing mechanism is made of flexible material. After inflation, it can adaptively wrap around the steel wire rope, further improving the adaptability to steel wire ropes of different specifications, while reducing contact friction and extending the service life of the steel wire rope.
[0015] 2. Through the coordinated action of the moving component, the flipping component, and the second clamping component, the anti-sway action and the crane's operating status are synchronized. When the hydraulic telescopic rod drives the horizontal push block to move, it can simultaneously drive the flipping component to close, the first clamping component to clamp, and the airbag to inflate, so that the anti-sway mechanism can quickly intervene in the early stage of the wire rope swaying. This solves the problem of delayed response of traditional devices. Especially in heavy load or high-speed operation scenarios, it can significantly improve anti-sway stability and reduce the safety risks of heavy object swaying, equipment collision, and wire rope breakage. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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.
[0017] Figure 1 This is a schematic diagram of the anti-sway device for the overhead crane track.
[0018] Figure 2 This is a schematic diagram showing the location of the anti-sway mechanism of the anti-sway device for the overhead crane track.
[0019] Figure 3 This is a schematic diagram showing the positional relationship between the moving component and the overturning component of the anti-sway device for the overhead crane track.
[0020] Figure 4 This is a schematic diagram showing the positional relationship between the overturning component and the first clamping component of the anti-sway device for the overhead crane track.
[0021] Figure 5 This is a schematic diagram showing the location of the second clamping component of the anti-sway device for the overhead crane track.
[0022] Figure 6 An exploded view of the three components of the anti-sway device for the overhead crane track.
[0023] In the diagram: 10. Gantry crane; 11. Wire rope; 12. Side plate; 13. Moving assembly; 131. Limiting groove; 132. Roller; 133. Horizontal push block; 134. Hydraulic telescopic rod; 14. Tilting assembly; 141. First connecting rod; 142. First movable seat; 143. Enclosure plate; 15. First clamping assembly; 151. Trapezoidal stop block; 152. Horizontal push rod; 153. Pressure plate; 154. Arc groove; 155. Compression spring; 20. Airbag; 21. Second clamping assembly; 211. Air pipe; 212. Cylinder; 213. Piston rod; 214. Second connecting rod; 215. Second movable seat. Detailed Implementation
[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0025] Example 1, referring to Figures 1-6 This is the first embodiment of the present invention. This embodiment provides an anti-sway device for a crane track, which can clamp and fix the wire rope at different lengths to prevent the wire rope from swaying significantly. It includes an anti-sway mechanism, which includes a gantry crane 10 and a wire rope 11. Side plates 12 are fixedly provided on both sides of the gantry crane 10. Each side plate 12 is provided with a moving component 13. The moving component 13 includes a limiting groove 131 opened inside the side plate 12. A roller 132 is slidably provided in the inner cavity of the limiting groove 131. A horizontal push block 133 is rotatably provided on the side of the roller 132 away from the inner cavity of the limiting groove 131. A hydraulic telescopic rod 134 is fixedly provided at the middle of the rear end of the horizontal push block 133.
[0026] Specifically, the hydraulic telescopic rod 134 in this device is preferably the long-stroke hydraulic telescopic rod 134 from Weihai Lixin Hydraulic Pneumatic Machinery Co., Ltd. However, since it is existing technology, its structural principle will not be elaborated here. The telescopic end of the hydraulic telescopic rod 134 can push the roller 132 to move laterally in the limiting slide groove 131 through the horizontal push block 133.
[0027] Furthermore, a flipping component 14 is provided at the lower end of the moving component 13. The flipping component 14 includes a first connecting rod 141 rotatably disposed at both ends of the horizontal push block 133. A first movable seat 142 is rotatably disposed at the end of the first connecting rod 141 away from the horizontal push block 133. A surrounding plate 143 is fixedly disposed at the end of the first movable seat 142 away from the first connecting rod 141.
[0028] In normal conditions, there is a certain angle between the first connecting rod 141 and the surrounding plate 143 so that when the horizontal push block 133 pushes the first connecting rod 141 to move, it can push the surrounding plate 143 downward to surround the wire rope 11 in the middle of the surrounding plate 143, and at the same time push the surrounding plate 143 to move downward along the wire rope 11.
[0029] Preferably, a first clamping component 15 for clamping and preventing the wire rope 11 from swaying is provided on the opposite side of the flipping component 14. The first clamping component 15 includes a trapezoidal abutment block 151 that is slidably disposed on the upper end of the first movable seat 142 and abuts against the first connecting rod 141. A horizontal push rod 152 is fixedly disposed in the middle of the surface of the trapezoidal abutment block 151 away from the first connecting rod 141. A pressure plate 153 for squeezing and fixing the wire rope 11 is fixedly disposed at the end of the horizontal push rod 152 away from the trapezoidal abutment block 151. An arc-shaped groove 154 for wrapping the wire rope 11 is opened on the surface of the pressure plate 153 abutting against the wire rope 11. The horizontal push rod 152 movably passes through the middle of the side wall of the enclosure 143. A compression spring 155 is sleeved on the outside of the end of the horizontal push rod 152 that passes through the enclosure 143. The two ends of the compression spring 155 abut against the back of the pressure plate 153 and the surface of the enclosure 143 away from the first connecting rod 141, respectively.
[0030] It should be noted that the gantry crane 10 and the wire rope 11 are existing structures, and their structural principles will not be elaborated here. The arc groove 154 can be set according to the number and diameter of the wire rope 11. At the same time, lubricating grease is applied to the inner cavity of the arc groove 154 to prevent friction and wear between the pressure plate 153 and the wire rope 11.
[0031] When the gantry crane 10 lifts heavy objects via the wire rope 11, in order to prevent the wire rope 11 from swinging significantly due to its long length, the hydraulic telescopic rod 134 is activated so that its telescopic end pushes the horizontal push block 133 to move closer to the wire rope 11. The horizontal push block 133 drives the roller 132 to slide horizontally synchronously in the inner cavity of the limit slide groove 131, ensuring the stability of the horizontal push block 133 during its movement.
[0032] As the horizontal push block 133 moves, the first connecting rods 141 at both ends will move accordingly. Since there is a certain angle between the first connecting rod 141 and the enclosure plate 143 under normal conditions, the two enclosure plates 143 will gradually close and abut against each other under the push of the first connecting rod 141, and gradually surround the steel wire rope 11 in the middle of the enclosure plate 143. At this time, the first movable seat 142 will drive the enclosure plate 143 to move downward, and the enclosure plate 143 will move downward along the steel wire rope 11, forming a preliminary enclosure and restriction on the steel wire rope 11.
[0033] During the movement of the first link 141, it will abut against the trapezoidal stop 151 and push the trapezoidal stop 151 to move closer to the wire rope 11. The trapezoidal stop 151 drives the horizontal push rod 152 to move synchronously. The horizontal push rod 152 pushes the pressure plate 153 closer to the wire rope 11. As the pressure plate 153 moves, the compression spring 155 will be gradually compressed, generating a reverse elastic force. When the pressure plate 153 contacts the wire rope 11, the arc groove 154 will wrap around the wire rope 11. Under the elastic force of the compression spring 155, the pressure plate 153 will form a stable clamping force on the wire rope 11, clamping and fixing the wire rope 11, thereby effectively limiting the swing amplitude of the wire rope 11.
[0034] When it is necessary to adjust the length of the wire rope 11 or lower a heavy object, the hydraulic telescopic rod 134 retracts, causing the horizontal push block 133 to move away from the wire rope 11, and the roller 132 slides in the opposite direction within the limiting groove 131. The first connecting rod 141 then moves in the opposite direction, the thrust on the trapezoidal stop block 151 disappears, and the compression spring 155 pushes the pressure plate 153, the horizontal push rod 152, and the trapezoidal stop block 151 to move in the opposite direction, causing the pressure plate 153 to separate from the wire rope 11 and releasing the clamping of the wire rope 11. At the same time, the first movable seat 142 drives the surrounding plate 143 to move upward, releasing the enclosure restriction on the wire rope 11, so that the wire rope 11 can move freely for adjustment during lifting operations.
[0035] Through this working process, the anti-sway mechanism can clamp and surround the wire rope 11 in a timely manner during the lifting process, effectively preventing the wire rope 11 from swinging significantly due to its long length, and ensuring the safety and stability of the lifting operation.
[0036] Example 2, refer to Figures 1-6 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a fixing mechanism for the anti-sway device of the crane running track, which solves the problem of preventing large swaying amplitude due to the long length of the wire rope during the lifting process. It includes a fixing mechanism, which includes two sets of airbags 20 for further clamping and fixing the wire rope 11. Each airbag 20 is provided with a second clamping component 21 for pushing the airbag 20 to clamp the wire rope 11.
[0037] The second clamping assembly 21 includes an air pipe 211 fixedly disposed on one side of the airbag 20 and communicating with the inner cavity of the airbag 20. A cylinder 212 is fixedly disposed at the other end of the air pipe 211. The inner cavity of the cylinder 212 is communicating with the inner cavity of the air pipe 211, and piston rods 213 are slidably disposed at both ends of the inner cavity of the cylinder 212. The piston rods 213 are used to compress gas and deliver it into the airbag 20 through the air inlet pipe 211. The second clamping assembly 21 also includes a second connecting rod 214 for moving with the surrounding plate 143 and thus pushing the airbag 20 to clamp the steel wire rope 11. The two ends of the second connecting rod 214 are rotatably disposed with second movable seats 215 respectively fixedly disposed on the back of the airbag 20 and on the surface of the surrounding plate 143 away from the first connecting rod 141.
[0038] Specifically, the airbag 20 is made of polyurethane material, but since it is existing technology, its structural principle will not be described in detail here. The piston rods 213, which are respectively slidably set at both ends of the cylinder 212, are fixedly connected to the inner cavities of the two surrounding plates 143. This allows the piston rods 213 to compress gas as they move with the surrounding plates 143 to inflate the airbag 20, thereby providing a better fixation and wrapping effect for the steel wire rope 11. At the same time, it also limits the two surrounding plates 143, allowing them to move vertically and longitudinally under the push of the first connecting rod 141. After the airbag 20 inflates and wraps the steel wire rope 11, it can assist the pressure plate 153 and the arc groove 154 in aligning and clamping the steel wire rope 11.
[0039] In use, refer to Example 2. Figures 1-6 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a fixing mechanism for the anti-sway device of the crane running track, which solves the problem of preventing large swaying amplitude due to the long length of the wire rope during the lifting process. It includes a fixing mechanism, which includes two sets of airbags 20 for further clamping and fixing the wire rope 11. Each airbag 20 is provided with a second clamping component 21 for pushing the airbag 20 to clamp the wire rope 11.
[0040] The second clamping assembly 21 includes an air pipe 211 fixedly disposed on one side of the airbag 20 and communicating with the inner cavity of the airbag 20. A cylinder 212 is fixedly disposed at the other end of the air pipe 211. The inner cavity of the cylinder 212 is communicating with the inner cavity of the air pipe 211, and piston rods 213 are slidably disposed at both ends of the inner cavity of the cylinder 212. The piston rods 213 are used to compress gas and deliver it into the airbag 20 through the air inlet pipe 211. The second clamping assembly 21 also includes a second connecting rod 214 for moving with the surrounding plate 143 and thus pushing the airbag 20 to clamp the steel wire rope 11. The two ends of the second connecting rod 214 are rotatably disposed with second movable seats 215 respectively fixedly disposed on the back of the airbag 20 and on the surface of the surrounding plate 143 away from the first connecting rod 141.
[0041] Specifically, the airbag 20 is made of polyurethane material, but since it is existing technology, its structural principle will not be described in detail here. The piston rods 213, which are respectively slidably set at both ends of the cylinder 212, are fixedly connected to the inner cavities of the two surrounding plates 143. This allows the piston rods 213 to compress gas as they move with the surrounding plates 143 to inflate the airbag 20, thereby providing a better fixation and wrapping effect for the steel wire rope 11. At the same time, it also limits the two surrounding plates 143, allowing them to move vertically and longitudinally under the push of the first connecting rod 141. After the airbag 20 inflates and wraps the steel wire rope 11, it can assist the pressure plate 153 and the arc groove 154 in aligning and clamping the steel wire rope 11.
[0042] When in use, as the enclosure 143 gradually closes under the push of the first connecting rod 141, the piston rod 213, which is fixedly connected to the enclosure 143, moves synchronously toward the middle of the cylinder 212. As the piston rods 213 at both ends of the cylinder 212 squeeze inward at the same time, the gas in the cylinder 212 is compressed and transported to the airbag 20 through the air pipe 211. As the gas is injected, the polyurethane airbag 20 begins to expand and gradually wraps around the steel wire rope 11.
[0043] At this time, the airbag 20 utilizes the properties of flexible materials to achieve full circumferential wrapping of the steel wire rope 11, forming a more comprehensive constraint than the pressure plate 153; at the same time, the inflated airbag 20 can adapt to changes in the outer diameter of the steel wire rope 11, and can maintain stable contact pressure even if there is a diameter tolerance; and through the linkage structure of the second connecting rod 214 and the second movable seat 215, the expansion process of the airbag 20 can generate a reverse support force on the enclosure plate 143, ensuring that the two enclosure plates 143 always maintain parallel movement and avoid tilting caused by uneven force.
[0044] When the anti-sway restraint needs to be released, the hydraulic telescopic rod 134 retracts, causing the enclosure 143 to separate. At this time, the piston rod 213 moves outward with the enclosure 143, creating a negative pressure in the cylinder 212. The gas in the airbag 20 flows back to the cylinder 212 through the air pipe 211, causing the airbag 20 to contract and detach from the steel wire rope 11. Throughout the process, the inflation and deflation of the airbag 20 is completely synchronized with the opening and closing of the enclosure 143, requiring no additional control.
[0045] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A swing-preventing device for a crown block running track, characterized by: include, The anti-sway mechanism includes a gantry crane (10) and a wire rope (11). Side plates (12) are fixedly provided on both sides of the gantry crane (10). A moving component (13) is provided on each side plate (12). A flipping component (14) is provided at the lower end of the moving component (13). A first clamping component (15) for clamping the wire rope (11) to prevent swaying is provided on the opposite side of the flipping component (14). The fixing mechanism includes two sets of airbags (20) for further clamping and fixing the wire rope (11), and each airbag (20) is provided with a second clamping component (21) for pushing the airbag (20) to clamp the wire rope (11).
2. The sway-prevention device for a crown block running track according to claim 1, characterized in that: The moving component (13) includes a limiting slide groove (131) opened inside the side plate (12). A roller (132) is slidably arranged in the inner cavity of the limiting slide groove (131). A horizontal push block (133) is rotatably arranged on the side of the roller (132) away from the inner cavity of the limiting slide groove (131). A hydraulic telescopic rod (134) is fixedly arranged at the middle of the rear end of the horizontal push block (133).
3. The sway prevention device for a crown block running track according to claim 1, wherein: The flipping assembly (14) includes a first connecting rod (141) rotatably disposed at both ends of the horizontal push block (133). A first movable seat (142) is rotatably disposed at the end of the first connecting rod (141) away from the horizontal push block (133). A surrounding plate (143) is fixedly disposed at the end of the first movable seat (142) away from the first connecting rod (141).
4. The swing prevention device for a crown block running track according to claim 1, wherein: The first clamping assembly (15) includes a trapezoidal abutment block (151) slidably disposed on the upper end of the first movable seat (142) and abutting against the first connecting rod (141). A horizontal push rod (152) is fixedly disposed in the middle of the surface of the trapezoidal abutment block (151) away from the first connecting rod (141). A pressure plate (153) for squeezing and fixing the wire rope (11) is fixedly disposed at the end of the horizontal push rod (152) away from the trapezoidal abutment block (151). An arc-shaped groove (154) for wrapping the wire rope (11) is opened on the surface of the pressure plate (153) abutting against the wire rope (11).
5. The anti-sway device for crane running track as described in claim 4, characterized in that: The horizontal push rod (152) moves through the middle of the side wall of the enclosure (143). A compression spring (155) is sleeved on the outside of one end of the horizontal push rod (152) that passes through the enclosure (143). The two ends of the compression spring (155) abut against the back of the pressure plate (153) and the surface of the enclosure (143) away from the first connecting rod (141), respectively.
6. The swing prevention device for a crown block running track according to claim 1, wherein: The second clamping assembly (21) includes an air tube (211) fixedly disposed on one side of the airbag (20) and communicating with the inner cavity of the airbag (20). A cylinder (212) is fixedly disposed at the other end of the air tube (211). The inner cavity of the cylinder (212) is communicating with the inner cavity of the air tube (211), and piston rods (213) are slidably disposed at both ends of the inner cavity of the cylinder (212). The piston rods (213) are used to compress the gas and deliver it into the airbag (20) through the air inlet pipe (211).
7. The overhead trolley track anti-sway device of claim 6, wherein: The second clamping assembly (21) further includes a second link (214) for moving with the enclosure (143) and thus pushing the airbag (20) to clamp the wire rope (11). The second link (214) has a second movable seat (215) rotatably provided at both ends, which is fixedly provided on the back of the airbag (20) and on the side of the enclosure (143) away from the first link (141).