Ship bridge frame wave compensation device and system

Abstract

The utility model provides a ship bridge frame wave compensation device and system and relates to the technical field of ship wave compensation, the device comprises a portal frame and wave compensation mechanisms, the portal frame and the wave compensation mechanisms are arranged above a ship body, and the two sets of wave compensation mechanisms are arranged on the two sides of the portal frame respectively. The two groups of wave compensation mechanisms are symmetrically arranged; the wave compensation mechanism comprises a wave compensation oil cylinder and winches, the wave compensation oil cylinder is arranged between the portal frame and the winches, and the winches are connected with the wave compensation oil cylinder, the portal frame and the bridge frame through steel cables, so that the technical problem of cooperation of multiple winches in cooperation in the prior art is solved; the technical effects that the control system is simplified, installation and maintenance are convenient, and cost is reduced are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ship wave compensation, in particular to a ship bridge wave compensation device and system. Background Technique

[0002] The development of the offshore engineering and shipbuilding industries has put forward higher requirements for construction equipment, especially to ensure construction safety and efficiency under complex sea conditions. As one of the key technologies to ensure the safe operation of offshore platforms and ship lifting equipment, the main function of wave compensation technology is to keep the tension of the cable or boom in the winch system constant under the action of sea waves, so as to avoid equipment damage caused by impact loads caused by waves.

[0003] The existing wave compensation technology is widely used in offshore operation platforms and lifting equipment of various ships, and adjusts the output tension of the winch in real time to adapt to the fluctuations of the sea surface. This technology usually based on the data collected by sensors, combined with preset control algorithms to dynamically adjust the operating state of the winch, so as to achieve the purpose of synchronizing with the waves, thereby reducing the instantaneous load on the cable or boom caused by sea waves.

[0004] However, in some specific application scenarios, such as the hoisting operation of large components involved in bridge construction, multiple winches are often required to work together to ensure the smooth movement of the load. At this time, the traditional single-wave compensation system is difficult to meet the requirements of multi-winch synchronous operation, because there may be different degrees of wave influence differences between different winches, resulting in difficult to achieve precise synchronous compensation, and then may cause the risk of load imbalance or even out of control. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a ship bridge wave compensation device and system to solve the technical problem of coordination in the simultaneous operation of multiple winches in the prior art.

[0006] In the first aspect, the utility model provides a ship bridge wave compensation device, including: a gantry and a wave compensation mechanism. The gantry and the wave compensation mechanism are arranged above the ship body. Two groups of wave compensation mechanisms are respectively arranged on both sides of the gantry, and the two groups of wave compensation mechanisms are symmetrically arranged;

[0007] The wave compensation mechanism includes a wave compensation oil cylinder and a winch. The wave compensation oil cylinder is arranged between the gantry and the winch. The winch is connected to the wave compensation oil cylinder, the gantry and the bridge through a steel cable.

[0008] Optionally, a limiting member is provided on the wave compensation oil cylinder. The limiting member includes a first fixed pulley, a second fixed pulley, and a third fixed pulley. The first fixed pulley is arranged above the wave compensation oil cylinder and is fixedly connected to the piston rod of the wave compensation oil cylinder; the second fixed pulley and the third fixed pulley are respectively arranged on both sides of the wave compensation oil cylinder, and the steel cable passes through the second fixed pulley, the first fixed pulley, and the third fixed pulley and is connected to the bridge.

[0009] Optionally, the wave compensation mechanism further includes a first sensor for measuring the tension of the winch, and the first sensor is fixedly arranged on the winch.

[0010] Optionally, a fourth fixed pulley is provided on the gantry. The fourth fixed pulley is arranged below the gantry, and a plurality of them are evenly arranged along the width direction of the gantry.

[0011] Optionally, a second sensor for measuring the attitude of the bridge is provided on the gantry. The second sensor is arranged below the gantry, and the acquisition area of the second sensor faces the bridge.

[0012] Optionally, a movable pulley is further included. The movable pulley is arranged between the fixed pulley and the bridge, and the movable pulley is connected to the fourth fixed pulley through a steel cable.

[0013] Optionally, a fixing member for fixedly connecting to the bridge is provided on the movable pulley, and the fixing member is arranged below the movable pulley.

[0014] Optionally, a connecting member for connecting to the bridge is provided on the fixing member, and the connecting member is arranged at one end of the fixing member away from the movable pulley.

[0015] Optionally, a movable pulley is arranged between adjacent fourth fixed pulleys.

[0016] In a second aspect, the present invention provides a ship bridge wave compensation system, including the ship bridge wave compensation device as described above and a control device;

[0017] The control device is respectively connected to the winch, the wave compensation oil cylinder, the first sensor, and the second sensor.

[0018] For the ship bridge wave compensation device and system provided by the present invention, by arranging the gantry and the wave compensation mechanism above the ship body, two sets of wave compensation mechanisms are respectively arranged on both sides of the gantry and are symmetrically arranged; the wave compensation mechanism includes a wave compensation oil cylinder and a winch. The wave compensation oil cylinder is arranged between the gantry and the winch, and the winch is connected to the wave compensation oil cylinder, the gantry, and the bridge through a steel cable, thus solving the technical problem of coordination when multiple winches work together; by connecting with the bridge through a steel cable, the swinging direction of the bridge is relatively flexible; by arranging the wave compensation oil cylinder on the ship body, it is convenient for installation and maintenance. Description of the Drawings

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Schematic diagram of a wave compensation device for a ship bridge provided by an embodiment of the present invention;

[0021] Figure 2 Schematic diagram of a wave compensation system for a ship bridge provided by an embodiment of the present invention.

[0022] Icons: 100 - ship main body; 200 - gantry; 300 - bridge; 400 - winch; 500 - wave compensation oil cylinder; 600 - steel cable; 710 - first fixed pulley; 720 - second fixed pulley; 730 - third fixed pulley; 740 - fourth fixed pulley; 750 - movable pulley; 800 - bridge trunnion. Specific embodiments

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the present invention claimed, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] Figure 1 Schematic diagram of a wave compensation device for a ship bridge provided by an embodiment of the present invention, as Figure 1As shown in the figure, the device includes: a gantry 200 and a wave compensation mechanism. Among them, the gantry 200 and the wave compensation mechanism are arranged above the ship body. Two sets of wave compensation mechanisms are respectively arranged on both sides of the gantry 200, and the two sets of wave compensation mechanisms are symmetrically arranged; the wave compensation mechanism includes a wave compensation oil cylinder 500 and a winch 400. The wave compensation oil cylinder 500 is arranged between the gantry 200 and the winch 400. The winch 400 is connected to the wave compensation oil cylinder 500, the gantry 200 and the bridge 300 through a steel cable 600.

[0027] Specifically, a first wave compensation mechanism is arranged on one side of the gantry 200, and a second wave compensation mechanism is arranged on the other side. Among them, the wave compensation oil cylinder 500 of the wave compensation mechanism is arranged between the winch 400 and the gantry 200. The steel cable 600 on the winch 400 passes through the wave compensation oil cylinder 500 and is fixedly connected to the bridge 300 through the gantry 200. By rising or falling the piston rod of the wave compensation oil cylinder 500, the tension of the steel cable 600 is adjusted to ensure that the bridge 300 can be constructed normally under the condition that the ship body 100 fluctuates greatly.

[0028] In the present utility model, under the working condition that the ship body 100 sways and undulates with the wind and waves in strong winds and waves, by determining the lifting force of the wave compensation oil cylinder 500 according to the pulling force of the winch 400, the steel cable 600 is always kept at the required tension to ensure the normal construction of the bridge 300, that is, to ensure that the bridge 300 always remains approximately horizontal when descending. By keeping the tension of the steel cable 600 through the wave compensation oil cylinder 500, the frequent retracting and releasing of the steel cable 600 are avoided, the control operation is simplified, and the cost of the wave compensation device is reduced, and the technical problem of the coordinated work of multiple winches 400 is solved.

[0029] In an optional embodiment, a limiting member is provided on the wave compensation oil cylinder 500. The limiting member includes a first fixed pulley 710, a second fixed pulley 720 and a third fixed pulley 730. The first fixed pulley 710 is arranged above the wave compensation oil cylinder 500 and is fixedly connected to the piston rod of the wave compensation oil cylinder 500; the second fixed pulley 720 and the third fixed pulley 730 are respectively arranged on both sides of the wave compensation oil cylinder 500. The steel cable 600 passes through the second fixed pulley 720, the first fixed pulley 710 and the third fixed pulley 730 and is connected to the bridge 300.

[0030] Specifically, in order to facilitate better contact between the steel cable 600 and the wave compensation oil cylinder 500, a limiting member is provided on the wave compensation oil cylinder 500. The steel cable 600 is fixed on the wave compensation oil cylinder 500 through the limiting member, and the tension of the steel cable 600 is maintained by using the lifting force of the wave compensation oil cylinder 500.

[0031] The first fixed pulley 710, the second fixed pulley 720, and the third fixed pulley 730 of the limiting member are all provided with limiting grooves, and the steel cable 600 passes under the second fixed pulley 720, above the first fixed pulley 710, under the third fixed pulley 730, and under the gantry 200 to be connected to the bridge 300.

[0032] In an alternative embodiment, the wave compensation mechanism further includes a first sensor for measuring the tension of the winch 400, and the first sensor is fixedly arranged on the winch 400.

[0033] Specifically, the tension value of the winch 400 is obtained through the first sensor to determine the lifting force value of the wave compensation oil cylinder 500, so that the steel cable 600 always maintains tension to ensure that the bridge 300 can operate normally when the ship body 100 fluctuates greatly.

[0034] In an alternative embodiment, a fourth fixed pulley 740 is provided on the gantry 200. The fourth fixed pulley 740 is arranged under the gantry 200, and a plurality of them are evenly arranged along the width direction of the gantry 200.

[0035] In an alternative embodiment, the device further includes a movable pulley 750. The movable pulley 750 is arranged between the fixed pulley and the bridge 300, and the movable pulley 750 is connected to the fourth fixed pulley 740 through the steel cable 600.

[0036] Specifically, a plurality of fourth fixed pulleys 740 are evenly arranged along the width direction under the gantry 200. Generally, the number of the fourth fixed pulleys 740 is an even number.

[0037] The movable pulley 750 is located under the fourth fixed pulley 740 and between two adjacent fourth fixed pulleys 740. The movable pulley 750 is connected to the bridge 300, and the steel cable 600 passes through a plurality of fourth fixed pulleys 740 and a plurality of movable pulleys, thus forming a serpentine structure.

[0038] In an alternative embodiment, a fixing member for fixedly connecting with the bridge 300 is provided on the movable pulley 750, and the fixing member is arranged under the movable pulley 750.

[0039] In an alternative embodiment, a connecting member for connecting with the bridge 300 is provided on the fixing member, and the connecting member is arranged at one end of the fixing member away from the movable pulley 750.

[0040] Specifically, a plurality of movable pulleys 750 are fixedly connected to the upper surface of the bridge 300 through the fixing member, and the steel cable 600 is fixedly connected to the bridge 300 through the fourth fixed pulley 740 and the movable pulley 750, thereby driving the bridge 300 to move.

[0041] In an alternative embodiment, a second sensor for measuring the attitude of the gantry 300 is provided on the gantry 200. The second sensor is arranged below the gantry 200, and the acquisition area of the second sensor faces the gantry 300.

[0042] Specifically, the second sensor is used to detect the attitude of the gantry 300, and the attitude of the gantry 300 is adjusted by the wave compensation device so that it always remains approximately horizontal.

[0043] The specific use process of the ship gantry wave compensation device in the present utility model:

[0044] According to the working conditions requirements, the first wave compensation device and the second wave compensation device are respectively arranged on both sides of the gantry 200 of the ship main body 100. The first wave compensation oil cylinder 500 is located between the gantry 200 and the first winch 400, and the first winch 400 is fixed on the ship main body 100 according to the working conditions requirements. The second wave compensation oil cylinder 500 is located between the gantry 200 and the second winch 400, and the second winch 400 is fixed on the ship main body 100 according to the working conditions requirements. The first winch 400, the first wave compensation oil cylinder 500 and the second winch 400, the second wave compensation oil cylinder 500 are arranged in a mirror image with respect to the gantry 200. One end of the steel cable 600 is fixedly connected to the first winch 400, and the other end is fixedly connected to the second winch 400 through the first wave compensation oil cylinder 500, a plurality of fourth fixed pulleys 740, a plurality of movable pulleys 750 and the second wave compensation oil cylinder 500.

[0045] The first sensor located on the first winch 400 is used to obtain the tension of the first winch 400. According to the tension of the first winch 400, the lifting force of the first wave compensation oil cylinder 500 is determined. Similarly, the first sensor located on the second winch 400 is used to obtain the tension of the second winch 400. According to the tension of the second winch 400, the lifting force of the second wave compensation oil cylinder 500 is determined. Through the lifting force of the wave compensation oil cylinder 500, in the case where the ship main body 100 fluctuates greatly, the steel cable 600 always maintains a constant tension to ensure the normal construction of the gantry 300, and the steel cable 600 is connected to the gantry 300 through the movable pulley 750. The steel cable 600 does not limit the swinging direction of the gantry 300 and is relatively flexible; the wave compensation oil cylinder 500 is arranged on the ship main body 100, which is convenient for installation and maintenance.

[0046] Figure 2 It is a structural schematic diagram of a ship gantry wave compensation system provided by the present utility model, as Figure 2As shown in the figure, the system includes the above-mentioned ship bridge wave compensation device and control device. Among them, the control device is respectively connected to the winch 400, the wave compensation cylinder 500, the first sensor and the second sensor. One end of the bridge 300 is connected to the ship body 100 through the bridge trunnion 800, and the other end is connected to the movable pulley 750 in the ship bridge 300 wave compensation device.

[0047] Specifically, the tension of the winch 400 and the attitude of the bridge 300 are obtained through the first sensor and the second sensor. According to the attitude of the bridge 300, the winch 400 is controlled to act so that the bridge 300 is in a horizontal state. According to the tension of the winch 400, the lifting force of the wave compensation cylinder 500 is determined to keep the steel cable 600 under a constant tension.

[0048] In an optional implementation, the ship bridge 300 wave compensation device includes: a gantry 200 and a wave compensation mechanism. The gantry 200 and the wave compensation mechanism are arranged above the ship body. Two sets of wave compensation mechanisms are respectively arranged on both sides of the gantry 200, and the two sets of wave compensation mechanisms are symmetrically arranged; the wave compensation mechanism includes a wave compensation cylinder 500 and a winch 400. The wave compensation cylinder 500 is arranged between the gantry 200 and the winch 400. The winch 400 is connected to the wave compensation cylinder 500, the gantry 200 and the bridge 300 through a steel cable 600.

[0049] In an optional implementation, a limiting member is provided on the wave compensation cylinder 500. The limiting member includes a first fixed pulley 710, a second fixed pulley 720 and a third fixed pulley 730. The first fixed pulley 710 is arranged above the wave compensation cylinder 500 and is fixedly connected to the piston rod of the wave compensation cylinder 500; the second fixed pulley 720 and the third fixed pulley 730 are respectively arranged on both sides of the wave compensation cylinder 500. The steel cable 600 passes through the second fixed pulley 720, the first fixed pulley 710 and the third fixed pulley 730 and is connected to the bridge 300.

[0050] In an optional implementation, the wave compensation mechanism further includes a first sensor for measuring the tension of the winch 400. The first sensor is fixedly arranged on the winch 400.

[0051] In an optional implementation, a fourth fixed pulley 740 is provided on the gantry 200. The fourth fixed pulley 740 is arranged below the gantry 200, and a plurality of them are uniformly arranged along the width direction of the gantry 200.

[0052] In an optional implementation, a second sensor for measuring the attitude of the bridge 300 is provided on the gantry 200. The second sensor is arranged below the gantry 200, and the acquisition area of the second sensor faces the bridge 300.

[0053] In an alternative embodiment, a movable pulley 750 is further included. The movable pulley 750 is disposed between the fixed pulley and the bridge 300, and the movable pulley 750 is connected to the fourth fixed pulley 740 through a steel cable 600.

[0054] In an alternative embodiment, a fixing member for fixedly connecting with the bridge 300 is provided on the movable pulley 750, and the fixing member is disposed below the movable pulley 750.

[0055] In an alternative embodiment, a connecting member for connecting with the bridge 300 is provided on the fixing member, and the connecting member is disposed at an end of the fixing member away from the movable pulley 750.

[0056] In an alternative embodiment, a movable pulley 750 is disposed between adjacent fourth fixed pulleys 740.

[0057] A wave compensation system for a ship bridge of the present utility model has the following beneficial effects:

[0058] 1. Only two winches need to take in and pay out the steel cable to maintain locking at a fixed position, and other functions are realized by the wave compensation cylinders, solving the problem of the coordinated operation of the two winches;

[0059] 2. The wave compensation control system is relatively simple. As long as the lifting force of the wave compensation cylinder is determined, there is no need to randomly change the tension of the winch and frequently take in and pay out the steel cable;

[0060] 3. Determining the lifting force of the wave compensation cylinder through the pulling force of the winch to replace the constant tension winch reduces the cost of the entire wave compensation system for the control system relatively.

[0061] In the description of the present utility model, it should be noted that in addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0062] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wave compensation device for a ship bridge, characterized in that, Comprising: A gantry and a wave compensation mechanism, the gantry and the wave compensation mechanism are arranged above the ship body, two groups of the wave compensation mechanisms are respectively arranged on both sides of the gantry, and the two groups of the wave compensation mechanisms are symmetrically arranged; The wave compensation mechanism includes a wave compensation oil cylinder and a winch, the wave compensation oil cylinder is arranged between the gantry and the winch, and the winch is connected to the wave compensation oil cylinder, the gantry and the bridge through a steel cable.

2. The ship bridge wave compensation device according to claim 1, characterized in that, A limiting member is arranged on the wave compensation oil cylinder, the limiting member includes a first fixed pulley, a second fixed pulley and a third fixed pulley, the first fixed pulley is arranged above the wave compensation oil cylinder and is fixedly connected to the piston rod of the wave compensation oil cylinder; the second fixed pulley and the third fixed pulley are respectively arranged on both sides of the wave compensation oil cylinder, and the steel cable passes through the second fixed pulley, the first fixed pulley and the third fixed pulley and is connected to the bridge.

3. The ship bridge wave compensation device according to claim 1, characterized in that, The wave compensation mechanism further includes a first sensor for measuring the pulling force of the winch, and the first sensor is fixedly arranged on the winch.

4. The ship bridge wave compensation device according to claim 1, characterized in that, A fourth fixed pulley is arranged on the gantry, the fourth fixed pulley is arranged below the gantry, and a plurality of them are evenly arranged along the width direction of the gantry.

5. The ship bridge wave compensation device according to claim 1 or 4, characterized in that: A second sensor for measuring the attitude of the bridge is arranged on the gantry, the second sensor is arranged below the gantry, and the acquisition area of the second sensor faces the bridge.

6. The ship bridge wave compensation device according to claim 4, characterized in that, It further includes a movable pulley, the movable pulley is arranged between the fixed pulley and the bridge, and the movable pulley is connected to the fourth fixed pulley through the steel cable.

7. The ship bridge wave compensation device according to claim 6, characterized in that, A fixing member for fixedly connecting with the bridge is arranged on the movable pulley, and the fixing member is arranged below the movable pulley.

8. The ship bridge wave compensation device according to claim 7, characterized in that, A connecting member for connecting with the bridge is arranged on the fixing member, and the connecting member is arranged at one end of the fixing member away from the movable pulley.

9. The ship bridge wave compensation device according to claim 6 or 7, characterized in that, The movable pulley is arranged between adjacent fourth fixed pulleys.

10. A ship bridge wave compensation system, characterized in that, Comprising a ship bridge wave compensation device and a control device as described in any one of claims 1-9 above; The control device is respectively connected to the winch, the wave compensation oil cylinder, the first sensor and the second sensor.

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