Novel energy-saving wave compensation step bridge

Abstract

The utility model provides a novel energy-saving wave compensation step bridge which comprises a step bridge assembly and a support assembly movably connected with the step bridge assembly, and the step bridge assembly is used for providing a passage for personnel transfer between a step bridge platform and an offshore building. The support assembly comprises a supporting mechanism, and the supporting mechanism comprises a base and a suspension base which are arranged in a spaced mode. And a compensation servo electric cylinder and a self-weight auxiliary oil cylinder are arranged between the base and the suspension seat. By means of the arrangement, during compensation motion, the self-weight auxiliary oil cylinder can passively bear most of the weight of the suspension seat and the upper portion of the suspension seat according to the specified proportion according to the use requirement, so that the weight needing to be borne by the compensation servo electric cylinder is obviously reduced, then the energy consumption of active compensation is reduced, and the energy-saving target is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of offshore walkways, and in particular relates to a novel energy-saving wave-compensating walkway. Background Art

[0002] With the rapid development of the maritime industry, the transfer of personnel at sea is becoming increasingly frequent. This is typically done by transport vessels, tugboats, or fishing boats, with dedicated maintenance vessels and transport vessels accounting for only a small portion. Personnel transfer is typically accomplished using a crane cage, or by placing the transport vessel against or against an offshore structure, with disembarking personnel climbing over on their own when the opportunity presents itself. In strong winds and waves, crane operation is restricted, and cage transfer is impossible. When using a transport vessel against or against an offshore structure, there is often a significant relative rise and fall, or gap, between the transport vessel and the offshore structure, making the transfer of personnel extremely risky. Therefore, new, safer and more efficient methods are urgently needed for the transfer of personnel and materials at sea.

[0003] Abroad, active wave-compensating walkways are gradually replacing traditional personnel transfer methods and becoming the mainstream, and domestic compensation walkways are also gradually emerging. Existing offshore compensation walkways, by fixedly connecting one end to the ship deck and the other end to the offshore structure, can establish a relatively safe and stable personnel transfer channel between the transport ship and the offshore fixed structure by actively performing wave compensation movement on the walkway. During the active compensation process, the compensating electric cylinder or oil cylinder needs to perform real-time dynamic compensation for all the loads on its upper part. Since the upper load is usually large, the energy consumption of the compensation process is also very high. The emergence of this utility model helps to reduce energy consumption and realize the concept of energy conservation, emission reduction, and green environmental protection. Utility Model Content

[0004] The purpose of the present invention is to provide a method for at least solving one of the above technical problems.

[0005] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model is as follows:

[0006] A new type of energy-saving wave-compensated walking bridge, including:

[0007] A gangway assembly, used to provide a passage for personnel transfer between the gangway platform and the offshore structure;

[0008] A support assembly movably connected to the step bridge assembly;

[0009] The support assembly includes a support mechanism, and the support mechanism includes a base and a suspension seat arranged at intervals;

[0010] A compensation servo electric cylinder and a deadweight auxiliary oil cylinder are provided between the base and the suspension seat.

[0011] Preferably, the base has three hinge points located in the same plane, and connecting any two of the hinge points forms an equilateral triangle. Any hinge point is integrated with two compensating servo cylinders and one deadweight auxiliary oil cylinder.

[0012] Preferably, the support assembly further includes a control system electrical cabinet, and the control system electrical cabinet is connected to the compensation servo electric cylinder and the deadweight auxiliary oil cylinder.

[0013] Preferably, the support mechanism further includes a posture sensor, which is used to detect posture information of the ship. The posture sensor is connected to the control system cabinet and sends the posture information to the control system cabinet.

[0014] Preferably, the step bridge assembly includes a fixed step bridge and a movable step bridge, one end of the fixed step bridge is movably connected to the support assembly, and the other end is connected to the movable step bridge.

[0015] Preferably, the support assembly further includes a platform mechanism, and the platform mechanism is rotatably connected to the support mechanism.

[0016] Preferably, the platform mechanism includes a slewing flange seat and a slewing motor, a slewing support bearing is provided in the slewing flange seat, the slewing motor is fixedly connected to the slewing flange seat, the output end of the slewing motor is transmission-connected to a slewing gear, and the slewing gear is meshedly connected to the slewing support bearing;

[0017] The outer ring of the slewing support bearing is fixedly connected to the slewing flange seat, and the inner ring is fixedly connected to the suspension seat. The outer ring of the slewing support bearing is rotatably connected to the inner ring.

[0018] More preferably, the step bridge assembly further includes a telescopic mechanism, which is located between the fixed step bridge and the movable step bridge, with one end of the telescopic mechanism connected to the fixed step bridge and the other end connected to the movable step bridge.

[0019] Preferably, the telescopic mechanism comprises a telescopic motor, a pulley block and a steel cable, the pulley block comprises an active pulley and a driven pulley, and the steel cable is sleeved on the active pulley and the driven pulley;

[0020] The telescopic motor is fixedly connected to the fixed step bridge, the output end of the telescopic motor is transmission-connected to the active pulley, and the active pulley is rotationally connected to the fixed step bridge;

[0021] The driven pulley is rotatably connected to the movable step bridge.

[0022] Preferably, the telescopic mechanism comprises a telescopic motor, a sprocket set and a chain, and the chain is meshedly connected to the sprocket set;

[0023] The telescopic motor is fixedly connected to the fixed step bridge, the sprocket group includes a driving sprocket and a driven sprocket, the output end of the telescopic motor is transmission-connected to the driving sprocket, and the driving sprocket is rotationally connected to the fixed step bridge;

[0024] The driven sprocket is rotatably connected to the movable step bridge.

[0025] Beneficial effects:

[0026] This utility model provides a novel energy-saving wave-compensating walkway, comprising a walkway assembly and a support assembly movably connected to the walkway assembly. The walkway assembly is used to provide a passage for personnel movement between a platform and an offshore structure. The support assembly includes a support mechanism comprising a base and a suspension seat spaced apart. A compensating servo electric cylinder and a deadweight auxiliary oil cylinder are positioned between the base and the suspension seat. This arrangement allows the deadweight auxiliary oil cylinder to bear most of the weight of the suspension seat and its upper portion during compensating movement, significantly reducing the weight that the compensating servo electric cylinder must bear, thereby reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a three-dimensional structural diagram of a step bridge according to an embodiment of the present utility model;

[0028] Figure 2 This is a three-dimensional structural diagram of the support assembly according to an embodiment of the present utility model;

[0029] Figure 3 This is a partially exploded three-dimensional structural diagram of the support assembly according to an embodiment of the present utility model;

[0030] Figure 4 This is one of the three-dimensional structural diagrams of the step bridge assembly according to an embodiment of the present utility model;

[0031] Figure 5 This is the second three-dimensional structural diagram of the step bridge assembly according to an embodiment of the present utility model.

[0032] Reference numerals

[0033] 1- Step bridge assembly; 11- Fixed step bridge; 111- First warning light; 12- Movable step bridge; 121- Second warning light; 122- Top end; 13- Telescopic mechanism; 131- Telescopic motor; 132- Active pulley; 133- Steel cable; 1331- First connecting end; 1332- Second connecting end; 134- Driven pulley; 135- Horizontal roller group; 136- Vertical roller group; 137- Fixed plate; 2- Support assembly; 21- Platform mechanism; 213- Rotating flange seat; 2131- Rotating support bearing; 214- Rotating motor; 2141- Rotating gear; 22- Support mechanism; 221- Base; 222- Compensating servo electric cylinder; 223- Deadweight auxiliary oil cylinder; 224- Posture sensor; 225- Suspension seat; 23- Control system electrical cabinet. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0035] The technical solution of the present utility model is described in detail below with reference to specific embodiments.

[0036] See also Figure 1 The embodiment of the present invention discloses an active wave compensation walkway, including a walkway assembly 1 and a support assembly 2. The walkway assembly 1 is used to provide a passage for personnel transfer between the walkway platform and the offshore structure. One end of the support assembly 2 is welded to the deck and the other end is movably connected to the walkway assembly 1. The support assembly 2 includes a platform mechanism 21 and a support mechanism 22. The platform mechanism 21 is rotatably connected to the support mechanism 22. Please refer to Figure 2 The support mechanism 22 includes a base 221 and a suspension base 225, which are spaced apart. A compensating servo cylinder 222 and a deadweight auxiliary oil cylinder 223 are disposed between the base 221 and the suspension base 225. One end of the compensating servo cylinder 222 and the deadweight auxiliary oil cylinder 223 are fixedly connected to the base 221, and the other end is fixedly connected to the suspension base 225. In the prior art, only the compensating servo cylinder 222 is disposed between the base 221 and the suspension base 225. During compensatory movement, the compensating servo cylinder 222 needs to bear the entire weight of the suspension base 225 and its upper portion, resulting in high energy consumption. However, in this embodiment, during compensatory movement, the deadweight auxiliary oil cylinder 223 can bear most of the weight of the suspension base 225 and its upper portion, significantly reducing the weight that the compensating servo cylinder 222 needs to bear, thereby reducing energy consumption.

[0037] Specifically, if Figure 2As shown, the base 221 has three hinge points located in the same plane. Connecting any two hinge points forms an equilateral triangle. Any hinge point is integrated with two compensating servo cylinders 222 and a deadweight auxiliary oil cylinder 223. The triangular hinge points make the structure of the base 221 stable, and since each hinge point is integrated with the compensating servo cylinder 222 and the deadweight auxiliary oil cylinder 223, it has a high degree of freedom and can adapt to waves with different flow directions and / or flow speeds; the more the deadweight auxiliary oil cylinder 223 bears the upper weight, the less weight will be allocated to the compensating servo cylinder 222, and the lower the power consumption of the compensating servo cylinder 222 during active compensation.

[0038] Please also refer to Figure 2 and Figure 3The support assembly 2 also includes a control system cabinet 23, which is connected to the oil cylinder and / or electric cylinder. The support mechanism 22 also includes a posture sensor 224. The posture sensor 224 is used to detect the posture information of the ship. The posture sensor 224 is connected to the control system cabinet 23 and sends the posture information to the control system cabinet 23. The posture sensor 224 can cooperate with the control system cabinet 23 to adjust the support mechanism 22 in real time, so that the platform mechanism 21 and the step bridge assembly 1 remain relatively stable at all times, that is, the control system cabinet 23 can control the oil cylinder and / or electric cylinder to actively compensate for the position of the suspension 225. Among them, the compensation servo electric cylinder 222 is the core power of active compensation. It receives action instructions from the control system cabinet 23. When the ship's posture changes, it actively compensates the suspension 225 for its posture, so that it maintains a relatively stable spatial posture and position. The deadweight auxiliary oil cylinder 223 is a passive load-bearing device and is the core of the equipment to achieve ultra-low power consumption operation. The rear chamber of the deadweight auxiliary oil cylinder 223 is connected to the accumulator (not shown in the figure). By changing the pressure setting of the accumulator, different load-bearing capacities of the deadweight auxiliary oil cylinder 223 can be set. The platform mechanism 21 includes a slewing flange seat 213 and a slewing motor 214. A slewing support bearing 2131 is provided in the slewing flange seat 213. The slewing motor 214 is fixedly connected to the slewing flange seat 213. The output end of the slewing motor 214 is transmission-connected to the slewing gear 2141, and the slewing gear 2141 is meshedly connected to the slewing support bearing 2131. The outer ring of the slewing support bearing 2131 is fixedly connected to the slewing flange seat 213, and the inner ring is fixedly connected to the suspension seat 225. The outer ring and the inner ring of the slewing support bearing 2131 are rotatably connected. Specifically, when the output end of the slewing motor 214 drives the slewing gear 2141 to rotate, the slewing gear 2141 rotates along the inner gear ring of the slewing support bearing 2131, and the slewing flange seat 213 and all the equipment thereon perform slewing motion. When the rotation direction of the rotary motor 214 is changed, the rotation direction of the rotary gear 2141 also changes accordingly, causing the outer ring of the rotary support bearing 2131, the rotary flange 213, and all the equipment mounted thereon to change their rotation direction. This arrangement allows the platform mechanism 21 to rotate at any horizontal angle relative to the support mechanism 22, expanding the applicability of the step bridge of the present invention.

[0039] For further information, please also refer to Figure 4 and Figure 5The step bridge assembly 1 includes a fixed step bridge 11 and a movable step bridge 12. One end of the fixed step bridge 11 is movably connected to the support assembly 2, and the other end is slidably connected to the movable step bridge 12. The step bridge assembly 1 also includes a telescopic mechanism 13. The telescopic mechanism 13 includes a telescopic motor 131, a pulley group and a steel cable 133. The pulley group includes an active pulley 132 and a driven pulley 134. The steel cable 133 is sleeved on the active pulley 132 and the driven pulley 134; the telescopic motor 131 is fixedly connected to the fixed step bridge 11, and the output end of the telescopic motor 131 is transmission-connected to the active pulley 132. The pulley 132 is rotatably connected to the fixed step bridge 11; the driven pulley 134 is rotatably connected to the movable step bridge 12, and a fixed plate 137 is fixed on the movable step bridge 12. The two ends of the same steel cable 133 are defined as a first connecting end 1331 and a second connecting end 1332, and the first connecting end 1331 and the second connecting end 1332 are both fixedly connected to the fixed plate 137. In this arrangement, the output end of the telescopic motor 131 drives the active pulley 132 to rotate, the active pulley 132 drives the steel cable 133 to move, and the steel cable 133 further drives the driven pulley 134 to rotate. Figure 4 The first connection end 1331 is the front traction point of the steel cable 133, and the second connection end 1332 is the rear traction point of the steel cable 133. The active pulley 132 drives the steel cable 133 so that the front traction point of the steel cable 133 actively moves forward, and the rear traction point of the steel cable 133 moves forward independently. At this time, the movable step bridge 12 extends relative to the fixed step bridge 11; similarly, the active pulley 132 drives the steel cable 133 so that the rear traction point of the steel cable 133 actively moves backward, and the front traction point of the steel cable 133 moves backward independently. At this time, the movable step bridge 12 retracts relative to the fixed step bridge 11. In order to ensure that the steel cable 133 can move smoothly, the telescopic mechanism 13 of the embodiment of the present invention also includes a guide roller. Figure 4 The installation position of the middle guide roller is divided into a transverse roller group 135 and a vertical roller group 136, wherein the bracket of the transverse roller group 135 is configured as a triangle, and a roller is provided at each vertex of the triangular bracket, which can be used to support the steel cable 133.

[0040] It can be understood that, in addition to the above-mentioned telescopic motor 131, pulley group and steel cable 133, the connection method between the fixed step bridge 11 and the movable step bridge 12 can also be a telescopic motor 131, a chain and a sprocket, wherein the chain and the sprocket are meshed and transmitted, and the transmission method is similar to the transmission of the pulley group and the steel cable 133, which will not be further elaborated here; in addition, a telescopic electric cylinder or a telescopic oil cylinder can be provided, one end of the telescopic electric cylinder or the telescopic oil cylinder is fixedly connected to the fixed step bridge 11, and the other end is fixedly connected to the movable step bridge 12. In this way, when the telescopic electric cylinder or the telescopic oil cylinder is extended, the movable step bridge 12 extends relative to the fixed step bridge 11. Similarly, when the telescopic electric cylinder or the telescopic oil cylinder contracts, the movable step bridge 12 retracts relative to the fixed step bridge 11. Such transformation methods all fall within the protection scope of the present invention.

[0041] Preferably, the step bridge assembly 1 further includes a warning light, which is used to remind people whether they can pass through the step bridge. Specifically, Figure 5 As shown, a first warning light 111 is provided on the side of the fixed walkway 11 away from the movable walkway 12, and a second warning light 121 is provided on the side of the movable walkway 12 away from the fixed walkway 11. The "first" in the first warning light 111 and the "second" in the second warning light 121 are only used to distinguish the two, and do not represent two different devices. More preferably, the first warning light 111 and the second warning light 121 in the embodiment of the present invention are both configured as sound and light alarm lights, and the rules of traffic lights can be adopted. When at least one of the two lights is red, passage is prohibited. When both lights are green, it is a passable state. At this time, personnel can transfer between the platform and the offshore structure via the telescopic walkway. The movable walkway 12 is also provided with a top end 122. The top end 122 is fixedly installed on one side of the second warning light 121 on the movable walkway 12. The top end 122 can be connected to a designated device at a designated position, effectively enhancing the stability of the walkway.

[0042] In summary, the present invention provides a novel energy-saving wave-compensating walkway, comprising a walkway assembly 1 and a support assembly 2 movably connected to the walkway assembly 1. The walkway assembly 1 is used to provide a passage for personnel movement between a platform and an offshore structure. The support assembly 2 includes a support mechanism 22, which comprises a base 221 and a suspension 225 spaced apart. A compensating servo cylinder 222 and a deadweight auxiliary oil cylinder 223 are disposed between the base 221 and the suspension 225. With this arrangement, during compensating movement, the deadweight auxiliary oil cylinder 223 can bear most of the weight of the suspension 225 and its upper portion, significantly reducing the weight that the compensating servo cylinder 222 needs to bear, thereby reducing energy consumption.

[0043] The above describes in detail an embodiment of a novel energy-saving heave-compensating walkway provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is intended only to facilitate understanding of the core concept of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A new type of energy-saving wave compensation walking bridge, characterized in that: include: A gangway assembly, used to provide a passage for personnel transfer between the gangway platform and the offshore structure; A support assembly movably connected to the step bridge assembly; The support assembly includes a support mechanism, and the support mechanism includes a base and a suspension seat arranged at intervals; A compensation servo electric cylinder and a deadweight auxiliary oil cylinder are provided between the base and the suspension seat.

2. The wave-compensating walking bridge according to claim 1, characterized in that: The base has three hinge points located in the same plane. Connecting any two of the hinge points forms an equilateral triangle. Any hinge point is integrated with two compensating servo electric cylinders and a deadweight auxiliary oil cylinder.

3. The wave-compensating walking bridge according to claim 1 or 2, characterized in that: The support assembly further includes a control system electrical cabinet, which is connected to the compensation servo electric cylinder and the deadweight auxiliary oil cylinder.

4. The wave-compensating walking bridge according to claim 3, characterized in that: The support mechanism further includes a posture sensor, which is used to detect posture information of the ship. The posture sensor is connected to the control system cabinet and sends the posture information to the control system cabinet.

5. The wave-compensating walking bridge according to claim 1, characterized in that: The step bridge assembly includes a fixed step bridge and a movable step bridge. One end of the fixed step bridge is movably connected to the support assembly, and the other end is connected to the movable step bridge.

6. The wave-compensating walking bridge according to claim 1, characterized in that: The support assembly further includes a platform mechanism, which is rotatably connected to the support mechanism.

7. The wave-compensating walking bridge according to claim 6, characterized in that: The platform mechanism includes a slewing flange seat and a slewing motor. A slewing support bearing is provided in the slewing flange seat. The slewing motor is fixedly connected to the slewing flange seat. The output end of the slewing motor is transmission-connected to a slewing gear. The slewing gear is meshedly connected to the slewing support bearing. The outer ring of the slewing support bearing is fixedly connected to the slewing flange seat, and the inner ring is fixedly connected to the suspension seat. The outer ring of the slewing support bearing is rotatably connected to the inner ring.

8. The wave-compensating walking bridge according to claim 5, characterized in that: The step bridge assembly also includes a telescopic mechanism, which is located between the fixed step bridge and the movable step bridge. One end of the telescopic mechanism is connected to the fixed step bridge, and the other end is connected to the movable step bridge.

9. The wave-compensating walking bridge according to claim 8, characterized in that: The telescopic mechanism includes a telescopic motor, a pulley block and a steel cable, the pulley block includes a driving pulley and a driven pulley, and the steel cable is sleeved on the driving pulley and the driven pulley; The telescopic motor is fixedly connected to the fixed step bridge, the output end of the telescopic motor is transmission-connected to the active pulley, and the active pulley is rotationally connected to the fixed step bridge; The driven pulley is rotatably connected to the movable step bridge.

10. The wave-compensating walking bridge according to claim 8, characterized in that: The telescopic mechanism includes a telescopic motor, a sprocket set and a chain, wherein the chain is meshedly connected to the sprocket set; The telescopic motor is fixedly connected to the fixed step bridge, the sprocket group includes a driving sprocket and a driven sprocket, the output end of the telescopic motor is transmission-connected to the driving sprocket, and the driving sprocket is rotationally connected to the fixed step bridge; The driven sprocket is rotatably connected to the movable step bridge.

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