Anti-swing monitoring assembly for lifting hook of marine ship crane

Abstract

The utility model discloses a marine ship crane hook anti-swing monitoring component which comprises a mounting bracket, a first bracket, a second bracket, a first encoder, a second encoder, a first guide wheel component and a second guide wheel component, the mounting bracket is arranged on a crane mechanical arm, the first bracket is hinged with the mounting bracket, the second bracket is hinged with the first bracket, and the second bracket is hinged with the second bracket. The first guide wheel assembly and the second guide wheel assembly are arranged on the first support and the second support respectively, the first encoder is used for measuring the angle position of the first support, and the second encoder is used for measuring the angle position of the second support. According to the anti-swing mechanism for the lifting hook of the marine ship crane, the swing angle of the mechanism is monitored in real time through the first encoder and the second encoder, and deviation angle information is transmitted to the controller to control the compensation mechanism to perform angle compensation, so that the influence of ship swing on the lifting hook is effectively counteracted, and the swing of goods on the lifting hook is reduced; therefore, the risks of goods damage and personnel injury are reduced.

Description

Technical Field

[0001] This utility model relates to the field of marine ship cranes, and in particular to a marine ship crane hook anti-sway monitoring component. Background Technology

[0002] With the increasing demands of near-shore engineering operations, especially the development of the offshore wind power industry in recent years, higher requirements are being placed on the cranes of offshore engineering vessels operating in near-shore areas. Existing traditional offshore cranes are prone to swaying and heave under wave action, causing the crane hook and the lifted load to swing. This can lead to collisions between the loads on the hook or with the ship's structure, causing damage; it can also cause the hook or wire rope to break, resulting in the load falling and endangering personnel safety. To ensure safety, operators need to spend more time stabilizing the hook, thus increasing operation time. Therefore, there is an urgent need for an anti-sway monitoring component to detect the relative position of the load and the boom, and to achieve anti-sway functionality through a compensation device. Utility Model Content

[0003] To address the shortcomings of the existing technology, the main objective of this utility model is to overcome these deficiencies and disclose an anti-sway monitoring component for a marine crane hook. The component includes a mounting bracket, a first bracket, a second bracket, a first encoder, a second encoder, a first guide wheel assembly, and a second guide wheel assembly. The mounting bracket is mounted on the crane's robotic arm. The first bracket is hinged to the mounting bracket, and the second bracket is hinged to the first bracket. The first guide wheel assembly and the second guide wheel assembly are respectively mounted on the first bracket and the second bracket. The first encoder measures the angular position of the first bracket, and the second encoder measures the angular position of the second bracket.

[0004] Furthermore, the mounting bracket includes a first hinge plate, a second hinge plate, and a connecting shaft. The first hinge plate and the second hinge plate are arranged parallel to each other. The ends of the first hinge plate and the second hinge plate are connected through the connecting shaft, which is connected to the crane robotic arm.

[0005] Furthermore, the first bracket includes two side rods and a crossbar. The side rods are respectively hinged to both sides of the mounting bracket, and the crossbar is connected to the two side rods. The second bracket is rotatably connected to the crossbar, and the first guide wheel assembly is disposed on the crossbar.

[0006] Furthermore, the first bracket also includes an adjusting rod and a counterweight. The adjusting rod is mounted on the side rod, the counterweight is mounted on the adjusting rod, and an adjusting nut is provided on the adjusting rod to adjust the position of the counterweight on the adjusting rod.

[0007] Furthermore, the counterweight is provided with guide holes, and the adjusting rod is provided with two adjusting nuts, which are located at the top and bottom of the counterweight, respectively.

[0008] Furthermore, two adjusting rods are arranged in parallel.

[0009] Furthermore, the first guide wheel assembly includes two first guide wheels and two gears. The two first guide wheels are arranged side by side on the first bracket via a shaft. The first guide wheels are provided with guide grooves that cooperate with the wire rope. The gears are arranged on the shaft, and the two gears mesh.

[0010] Furthermore, the second guide wheel assembly includes two second guide wheels arranged side by side on the second bracket, and the second guide wheels are provided with guide grooves that cooperate with the wire rope.

[0011] Furthermore, the first encoder is coaxially arranged with the hinge point of the first bracket and the mounting bracket, and is connected to the first bracket via a first connecting rod; the second encoder is coaxially arranged with the hinge point of the first bracket and the second bracket, and is connected to the second bracket via a second connecting rod.

[0012] The beneficial effects achieved by this utility model are:

[0013] The anti-sway mechanism for marine crane hooks uses a first and second encoder to monitor the sway angle of the mechanism in real time. This offset angle information is transmitted to the controller, which then controls the compensation mechanism to perform angle compensation. This effectively counteracts the impact of ship swaying on the hook, reducing the swaying of cargo on the hook and thus lowering the risk of cargo damage and personnel injury. Furthermore, the use of shaft encoders allows for precise detection and control of the hook's sway in the X and Y axes, achieving finer control and improving the accuracy of the anti-sway mechanism. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of an anti-sway monitoring component for a marine crane hook according to the present invention;

[0015] Figure 2 for Figure 1 A three-dimensional structural diagram from another perspective;

[0016] Figure 3 for Figure 1 The main view;

[0017] Figure 4 for Figure 3 BB section view;

[0018] Figure 5 for Figure 3Sectional view of AA;

[0019] Figure 6 for Figure 3 CC section view;

[0020] The attached figures are labeled as follows:

[0021] 1. Mounting bracket; 2. First bracket; 3. Second bracket; 4. First encoder; 5. Second encoder; 6. First guide wheel assembly; 7. Second guide wheel assembly; 11. First hinge plate; 12. Second hinge plate; 13. Connecting shaft; 21. Side rod; 22. Crossbar; 23. Adjusting rod; 24. Counterweight; 25. Adjusting nut; 26. Support plate; 41. First connecting rod; 51. Second connecting rod; 61. First guide wheel; 62. Gear; 71. Second guide wheel. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0023] A component for monitoring the anti-sway of a marine crane hook, such as Figures 1-6 As shown, the system includes a mounting bracket 1, a first bracket 2, a second bracket 3, a first encoder 4, a second encoder 5, a first guide wheel assembly 6, and a second guide wheel assembly 7. The mounting bracket 1 is mounted on the crane's robotic arm. The first bracket 2 is hinged to the mounting bracket 1, and the second bracket 3 is hinged to the first bracket 2. The first guide wheel assembly 6 and the second guide wheel assembly 7 are respectively mounted on the first bracket 2 and the second bracket 3. The first encoder 4 measures the angular position of the first bracket 2, and the second encoder 5 measures the angular position of the second bracket 3. A wire rope passes through the first guide wheel assembly 6 and the second guide wheel assembly 7 and is connected to the hook. When the ship sways, the cargo remains relatively stationary, causing the wire rope to deflect, and the first bracket 2 and the second bracket 3 to rotate accordingly. The first encoder 4 and the second encoder 5 collect angular data in real time, thereby controlling the compensation mechanism to adjust the position of the robotic arm to maintain relative stationarity between the robotic arm and the cargo.

[0024] In one embodiment, such as Figures 1-6 As shown, the mounting bracket 1 includes a first hinge plate 11, a second hinge plate 12, and a connecting shaft 13. The first hinge plate 11 and the second hinge plate 12 are arranged in parallel. The ends of the first hinge plate 11 and the second hinge plate 12 are connected by the connecting shaft 13, which is connected to the crane arm.

[0025] In one embodiment, such as Figures 1-6As shown, the first bracket 2 includes two side rods 21 and a crossbar 22. The two side rods 21 are hinged to both sides of the mounting bracket 1, respectively. Specifically, the side rods 21 are rotatably connected to the first hinge plate 11 and the second hinge plate 12, respectively. The two ends of the crossbar 22 are fixedly connected to the ends of the side rods 21, making the side rods 21 and the crossbar 22 an integral structure. The second bracket 3 is rotatably mounted on the crossbar 22, and the first guide wheel assembly 6 is mounted on the crossbar 22.

[0026] In the above embodiments, such as Figures 1-6 As shown, the first support 2 also includes an adjusting rod 23 and a counterweight 24. The adjusting rod 23 is mounted on the side rod 21, and the counterweight 24 is mounted on the adjusting rod 23. An adjusting nut 25 is mounted on the adjusting rod 23, and the position of the counterweight 24 on the adjusting rod 23 is adjusted by the adjusting nut 25. Specifically, the counterweight 24 has a guide hole, through which it slides on the adjusting rod 23. Two adjusting nuts 25 are mounted on the adjusting rod 23, located at the top and bottom of the counterweight 24, respectively. The adjustment steps are as follows: First, rotate the top adjusting nut away from the counterweight 24. The counterweight 24, due to its own weight, is supported by the bottom adjusting nut 25. Adjusting the bottom adjusting nut 25 adjusts the position of the counterweight 24 on the adjusting rod 23, so that the first support 2 is in a balanced state, i.e., the guiding direction of the first guide wheel assembly 6 and the second guide wheel assembly 7 is vertical. Then, tighten the top adjusting nut 25 to fix the counterweight 25.

[0027] In the above embodiments, such as Figures 1-6 As shown, two adjusting rods 23 are arranged in parallel. This improves the stability of the connection between the counterweight 24 and the first support 2.

[0028] In one embodiment, such as Figures 1-6 As shown, the first guide wheel assembly 6 includes two first guide wheels 61 and two gears 62. The two first guide wheels 61 are arranged side by side on the first bracket 2 via a shaft. Each first guide wheel 61 has a guide groove that engages with the wire rope. The gears 62 are mounted on the shaft, and the two gears 62 mesh. The wire rope passes through the guide grooves of the two first guide wheels 61, and the gears 62 cause the first guide wheels 61 to rotate synchronously.

[0029] Specifically, a support plate 26 is provided on the crossbar 22, and an installation space is provided between the support plate 26 and the crossbar 22. The first guide wheel assembly 6 is installed within the installation space to protect the guide wheels. Additionally, this improves the connection stability of the second bracket 3. Specifically, the second bracket 3 is rotatably connected to both the crossbar 22 and the support plate 26. The second guide wheel assembly 7 is mounted on the second bracket 3 and located below the first guide wheel assembly 6.

[0030] In one embodiment, such as Figures 1-6As shown, the second guide wheel assembly 7 includes two second guide wheels 71 arranged side by side on the second bracket, and each second guide wheel 71 is provided with a guide groove that cooperates with the wire rope. The wire rope passes through the guide grooves of the two second guide wheels 71.

[0031] In one embodiment, such as Figures 1-6 As shown, the first encoder 4 is coaxially arranged with the hinge point of the first bracket 2 and the mounting bracket 1, and is connected to the first bracket 2 through the first connecting rod 41. Specifically, the first connecting rod 41 is parallel to the side rod 21. One end of the first connecting rod 41 is fixed to the side rod 21, and the other end is connected to the acquisition end of the first encoder 4. When the first bracket 2 rotates, the first encoder 4 is driven to move through the first connecting rod 41 to acquire the current angular position of the first bracket 2, so as to feed back to the controller to control the compensation mechanism to perform angle compensation.

[0032] The second encoder 5 is coaxially arranged with the hinge points of the first bracket 2 and the second bracket 3, and is connected to the second bracket 3 through the second connecting rod 51. Similarly, when the second bracket 3 rotates, the second encoder 5 is driven to move through the second connecting rod 51 to collect the current angular position of the second bracket 3, and the compensation mechanism is controlled by the controller to perform angle compensation.

[0033] When using this utility model, such as Figures 1-6 As shown, the monitoring component is installed at the end of the robotic arm. A steel wire rope passes through the first guide wheel assembly 6 and the second guide wheel assembly 7 and connects to the hook, which is used to suspend cargo. When the ship experiences a horizontal position shift, the first guide wheel assembly 6 and the second guide wheel assembly 7 drive the first support 2 and the second support 3 to rotate. The first encoder 4 and the second encoder 5 collect the angular positions of the first support 2 and the second support 3, and feed the data back to the controller. The controller then controls the compensation mechanism to adjust the horizontal position of the robotic arm, causing the encoders of the first encoder 4 and the second encoder 5 to return to their original positions, thus providing an anti-sway function.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of implementation of the present utility model. Any modifications or equivalent substitutions to the present utility model without departing from the spirit and scope thereof should be covered within the protection scope of the claims of the present utility model.

Claims

1. A sway monitoring component for a marine crane hook, characterized in that, The system includes a mounting bracket, a first bracket, a second bracket, a first encoder, a second encoder, a first guide wheel assembly, and a second guide wheel assembly. The mounting bracket is mounted on the crane's robotic arm. The first bracket is hinged to the mounting bracket, and the second bracket is hinged to the first bracket. The first guide wheel assembly and the second guide wheel assembly are respectively mounted on the first bracket and the second bracket. The first encoder is used to measure the angular position of the first bracket, and the second encoder is used to measure the angular position of the second bracket.

2. The anti-sway monitoring component for a marine crane hook according to claim 1, characterized in that, The mounting bracket includes a first hinge plate, a second hinge plate, and a connecting shaft. The first hinge plate and the second hinge plate are arranged parallel to each other. The ends of the first hinge plate and the second hinge plate are connected by the connecting shaft, which is connected to the crane's robotic arm.

3. The anti-sway monitoring component for a marine crane hook according to claim 1, characterized in that, The first bracket includes two side rods and a crossbar. The side rods are hinged to both sides of the mounting bracket, and the crossbar is connected to the two side rods. The second bracket is rotatably connected to the crossbar, and the first guide wheel assembly is mounted on the crossbar.

4. The anti-sway monitoring component for a marine crane hook according to claim 3, characterized in that, The first bracket also includes an adjusting rod and a counterweight. The adjusting rod is mounted on the side rod, and the counterweight is mounted on the adjusting rod. An adjusting nut is provided on the adjusting rod, and the position of the counterweight on the adjusting rod is adjusted by the adjusting nut.

5. The anti-sway monitoring component for a marine crane hook according to claim 4, characterized in that, The counterweight is provided with guide holes, and the adjusting rod is provided with two adjusting nuts, which are located at the top and bottom of the counterweight, respectively.

6. The anti-sway monitoring component for a marine crane hook according to claim 4, characterized in that, Two adjusting rods are arranged in parallel.

7. The anti-sway monitoring component for a marine crane hook according to claim 1, characterized in that, The first guide wheel assembly includes two first guide wheels and two gears. The two first guide wheels are arranged side by side on the first bracket via a shaft. The first guide wheels are provided with guide grooves that cooperate with the wire rope. The gears are arranged on the shaft and the two gears mesh.

8. The anti-sway monitoring component for a marine crane hook according to claim 1, characterized in that, The second guide wheel assembly includes two second guide wheels arranged side by side on the second bracket, and the second guide wheels are provided with guide grooves that cooperate with the wire rope.

9. The anti-sway monitoring component for a marine crane hook according to claim 1, characterized in that, The first encoder is coaxially arranged with the hinge point of the first bracket and the mounting bracket, and is connected to the first bracket through a first connecting rod; the second encoder is coaxially arranged with the hinge point of the first bracket and the second bracket, and is connected to the second bracket through a second connecting rod.

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