Anti-swing device for lifting appliance of wharf crane
By designing an anti-shaking device in the dock crane lift, the combination of a rotating shaft, a winding wheel and an inclination sensor, the shaking problem caused by uneven container weight during the lifting process is solved, and the stability and safety of the lifting are improved.
Patent Information
- Application Number
- CN202421284909.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-06-06
AI Technical Summary
When hoisting containers, the weight distribution of the terminal crane spreader is uneven, and it is prone to shake, which affects the lifting stability and poses certain risks.
An anti-rock device for ferry crane slings is designed, including a sling body, a sling board, an extension board, a groove, a buckle, a rotating shaft, a winding wheel and an inclination sensor. Through the design of the rotating shaft and the winding wheel, ensure the synchronous rotation of the lifting rope and avoid the tilt of the suspender plate. The inclination sensor measures the inclination angle of the spreader plate in real time. When a shaking is detected, the controller adjusts the height of the suspender rope by adjusting the motor to maintain the level of the spreader plate.
It effectively prevents the shaking of the spreader board, improves the stability and safety of the lifting, and ensures the smooth progress of the lifting process.
Smart Images
Figure CN222612777U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dock hoisting, in particular to an anti-sway device for a dock crane hoist. Background Art
[0002] In order to place the cargo on the cargo ship, the container is lifted by a crane and then placed on the cargo ship. The most important part of the crane is the spreader, which is a device for lifting heavy objects with a lifting machine. When carrying cargo, various spreaders are usually used to assist, thereby reducing the workload. Lifting ropes, hooks, lifting suction cups and other tools are often used. In the use of the spreader of the prior art dock crane, the weight distribution of the container is not uniform, and it shakes when lifting, affecting the stability of the lifting, which has certain risks. Utility Model Content
[0003] The utility model aims to provide a sling anti-sway device for a dock crane to solve the problems raised in the above-mentioned background technology.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A sling anti-sway device for a dock crane comprises a sling body and a sling plate, the top of the sling body is fixedly connected to the crane, a sling plate is arranged below the bottom of the sling body, extension plates are arranged at the centers of both sides of the sling plate, through grooves are provided at the bottoms of both side surfaces of the sling body, hanging buckles are arranged at both ends of the bottom of the sling body, an inner cavity is provided inside the sling body, a rotating shaft is arranged at the center of the inner cavity of the sling body, the other end of the rotating shaft is connected to the output end of a lifting motor, the output end of the lifting motor is fixedly connected to the back side of the sling body, two first winding wheels are arranged on both sides of the rotating shaft, a second winding wheel is arranged outside the two first winding wheels, the bottoms of the two first winding wheels and the two second winding wheels are fixedly connected to the bottom of the inner cavity of the sling body, one end of a lifting rope is fixedly connected to the top of the two extension plates, the surface of the lifting rope passes through the hanging buckle, the through groove and the second winding wheel in sequence, and the other end of the lifting rope is fixedly connected to the first winding wheel.
[0006] Preferably, a first sprocket and a second sprocket are fixedly sleeved on the surface of the rotating shaft, one of the first winding wheels is connected via a first rotating shaft, another first sprocket is fixedly sleeved on the surface of the first rotating shaft, and the two first sprockets are connected via a first chain.
[0007] Preferably, another of the first winding wheels is connected via a fourth rotating shaft, another second sprocket is fixedly sleeved on the surface of the fourth rotating shaft, and the two second sprockets are connected via a second chain.
[0008] Preferably, one of the second winding wheels is connected via a third rotating shaft, a bottom end of the third rotating shaft is connected to a second adjustment motor, and the second adjustment motor is fixedly connected to the back side of the inner cavity of the sling body.
[0009] Preferably, another of the second winding wheels is connected via a second rotating shaft, a bottom end of the second rotating shaft is connected to a first adjustment motor, and the first adjustment motor is fixedly connected to the back side of the inner cavity of the sling body.
[0010] Preferably, a tilt sensor is provided on the top of the hanger plate.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model provides an anti-sway device for the spreader of a dock crane. During use, when the spreader plate shakes, the inclination sensor will measure the deviation of the spreader plate. At this time, the controller will start the adjustment motor of the lifting rope at a lower position to make the heights of the two lifting ropes reach the same height, thereby making the spreader plate horizontal again, effectively preventing the shaking of the utility model and improving the safety of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 It is a schematic diagram of the structure inside the main body of the sling of the utility model.
[0015] In the figure: 1. sling body; 2. through slot; 3. lifting buckle; 4. sling plate; 5. lifting motor; 6. extension plate; 7. inclination sensor; 8. rotating shaft; 9. first sprocket; 10. first chain; 11. first rotating shaft; 12. first winding wheel; 13. first adjustment motor; 14. second rotating shaft; 15. second winding wheel; 16. second adjustment motor; 17. third rotating shaft; 18. second sprocket; 19. second chain; 20. fourth rotating shaft. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0018] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0019] See also Figure 1-2 The utility model provides a technical solution: an anti-sway device for a sling of a dock crane, comprising a sling body 1 and a sling plate 4. The top of the sling body 1 is fixedly connected to the crane, a sling plate 4 is arranged below the bottom of the sling body 1, and extension plates 6 are arranged at the centers of both sides of the sling plate 4. Through grooves 2 are provided at the bottom of both sides of the sling body 1, and hanging buckles 3 are arranged at both ends of the bottom of the sling body 1. An inner cavity is provided inside the sling body 1, and a rotating shaft 8 is arranged at the center of the inner cavity of the sling body 1. The other end of the rotating shaft 8 is connected to the output end of the lifting motor 5. The output end of the lifting motor 5 is fixedly connected to the back side of the sling body 1, and two first winding wheels 12 are arranged on both sides of the rotating shaft 8. The outer sides of the two first winding wheels 12 are provided with second winding wheels 15. The bottoms of the two first winding wheels 12 and the two second winding wheels 15 are fixedly connected to the bottom of the inner cavity of the sling body 1, and the tops of the two extension plates 6 are fixedly connected to one end of the lifting rope. The surface of the lifting rope passes through the lifting buckle 3, the through groove 2, and the second winding wheel 15 in sequence, and the other end of the lifting rope is fixedly connected to the first winding wheel 12.
[0020] Furthermore, a first sprocket 9 and a second sprocket 18 are fixedly sleeved on the surface of the rotating shaft 8, one of the first winding wheels 12 is connected via a first rotating shaft 11, another first sprocket 9 is fixedly sleeved on the surface of the first rotating shaft 11, and the two first sprockets 9 are connected via a first chain 10.
[0021] Furthermore, another first winding wheel 12 is connected via a fourth rotating shaft 20 , another second sprocket 18 is fixedly sleeved on the surface of the fourth rotating shaft 20 , and the two second sprockets 18 are connected via a second chain 19 .
[0022] Furthermore, one of the second winding wheels 15 is connected via a third rotating shaft 17 , the bottom end of the third rotating shaft 17 is connected to a second adjustment motor 16 , and the second adjustment motor 16 is fixedly connected to the back side of the inner cavity of the sling body 1 .
[0023] Furthermore, another second winding wheel 15 is connected via a second rotating shaft 14 , a bottom end of the second rotating shaft 14 is connected to a first adjustment motor 13 , and the first adjustment motor 13 is fixedly connected to the back side of the inner cavity of the sling body 1 .
[0024] Furthermore, a tilt sensor 7 is provided on the top of the hanger plate 4 .
[0025] Working principle:
[0026] When the utility model is in use, the height of the sling plate 4 is raised by the rotation of the lifting motor 5. During the rotation of the lifting motor 5, the rotating shaft 8 will be rotated, and the rotation of the rotating shaft 8 will cause the first sprocket 9 and the second sprocket 18 to rotate. The rotation of the first sprocket 9 and the second sprocket 18 will cause the other first sprocket 9 and the second sprocket 18 to rotate. The rotation of the other first sprocket 9 and the second sprocket 18 will cause the first rotating shaft 11 and the fourth rotating shaft 20 to rotate. The rotation of the first rotating shaft 11 and the fourth rotating shaft 20 will cause the two first winding wheels 12 to rotate synchronously. The synchronous rotation of the two first winding wheels 12 will cause the lifting ropes on both sides to move the same distance per second, so that the sling plate 4 will not be tilted due to the different distances moved per second by the lifting ropes, thereby causing the sling to shake.
[0027] In addition, during the lifting process, the inclination sensor 7 will measure the inclination angle of the sling plate 4 in real time. When the inclination angle is not zero, it means that the sling plate 4 is shaking. At this time, the controller starts the adjustment motor of the lifting rope at the lower position to make the heights of the two lifting ropes reach the same height, thereby making the sling plate 4 horizontal again, effectively preventing the shaking of the utility model and improving the safety of the utility model.
[0028] It should be noted that the height of the lifting rope at the second adjustment motor 16 is lower than the height of the first adjustment motor 13, and the inclination sensor 7 will measure that the inclination of the sling plate 4 is not zero, and then transmit it to the controller. The controller starts the second adjustment motor 16 after data analysis. The start of the second adjustment motor 16 will cause the third rotating shaft 17 to rotate. The rotation of the third rotating shaft 17 will cause the second winding wheel 15 on this side to rotate, thereby lifting the lifting rope. When the sling plate 4 is horizontal, the second adjustment motor 16 will be turned off.
[0029] Finally, it should be noted that how the controller starts the second adjustment motor 16 after data analysis uses existing technology, and its principle will not be described in detail here.
[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A sling anti-sway device for a dock crane, comprising a sling body (1) and a sling plate (4), characterized in that: The top of the sling body (1) is fixedly connected to the crane, a sling plate (4) is arranged below the bottom of the sling body (1), and extension plates (6) are arranged at the center of both sides of the sling plate (4), through grooves (2) are provided at the bottom of both side surfaces of the sling body (1), and hanging buckles (3) are arranged at both ends of the bottom of the sling body (1), an inner cavity is provided inside the sling body (1), and a rotating shaft (8) is arranged at the center of the inner cavity of the sling body (1), and the other end of the rotating shaft (8) is connected to the output end of the lifting motor (5), and the output end of the lifting motor (5) is fixedly connected to the lifting motor (5). The lifting device is fixedly connected to the back side of the lifting device body (1), two first winding wheels (12) are arranged on both sides of the rotating shaft (8), and second winding wheels (15) are arranged on the outer sides of the two first winding wheels (12). The bottoms of the two first winding wheels (12) and the two second winding wheels (15) are fixedly connected to the bottom of the inner cavity of the lifting device body (1), and the tops of the two extension plates (6) are fixedly connected to one end of the lifting rope. The surface of the lifting rope passes through the lifting buckle (3), the through groove (2), and the second winding wheel (15) in sequence, and the other end of the lifting rope is fixedly connected to the first winding wheel (12).
2. The anti-sway device for a pier crane spreader according to claim 1, characterized in that: A first sprocket (9) and a second sprocket (18) are fixedly sleeved on the surface of the rotating shaft (8), one of the first winding wheels (12) is connected via a first rotating shaft (11), another first sprocket (9) is fixedly sleeved on the surface of the first rotating shaft (11), and the two first sprockets (9) are connected via a first chain (10).
3. The anti-sway device for a pier crane spreader according to claim 2, characterized in that: Another of the first winding wheels (12) is connected via a fourth rotating shaft (20), another second sprocket (18) is fixedly sleeved on the surface of the fourth rotating shaft (20), and the two second sprockets (18) are connected via a second chain (19).
4. The anti-sway device for a pier crane spreader according to claim 1, characterized in that: One of the second winding wheels (15) is connected via a third rotating shaft (17), the bottom end of the third rotating shaft (17) is connected to a second adjustment motor (16), and the second adjustment motor (16) is fixedly connected to the back side of the inner cavity of the sling body (1).
5. The anti-sway device for a pier crane spreader according to claim 1, characterized in that: Another of the second winding wheels (15) is connected via a second rotating shaft (14), the bottom end of the second rotating shaft (14) is connected to a first adjustment motor (13), and the first adjustment motor (13) is fixedly connected to the back side of the inner cavity of the sling body (1).
6. The anti-sway device for a pier crane spreader according to claim 1, characterized in that: A tilt sensor (7) is provided on the top of the hanger plate (4).