阅读说明：本技术 一种紧凑型伸缩式波浪补偿装置 (Compact telescopic wave compensation device ) 是由 张葆华 谢颖 武宇 王晓飞 张园 黄彦文 秦一飞 陈杰宇 于 2021-09-30 设计创作，主要内容包括：本发明公开了一种紧凑型伸缩式波浪补偿装置,连于机架上,包括多级滑杆机构、链轮传动机构和钩头；所述多级滑杆机构的上端连于所述机架上,下端与所述钩头连接；所述链轮传动机构设于所述多级滑杆机构内并与所述多级滑杆机构连接,用以驱动所述多级滑杆机构的伸缩运动。本发明即提供了一种结构简单紧凑、便于安装且灵活性好,成本较低的紧凑型伸缩式波浪补偿装置。(The invention discloses a compact telescopic wave compensation device, which is connected to a rack and comprises a multi-stage slide bar mechanism, a chain wheel transmission mechanism and a hook head; the upper end of the multi-stage slide rod mechanism is connected to the rack, and the lower end of the multi-stage slide rod mechanism is connected with the hook head; the chain wheel transmission mechanism is arranged in the multistage slide rod mechanism, is connected with the multistage slide rod mechanism and is used for driving the multistage slide rod mechanism to do telescopic motion. The invention provides the compact telescopic wave compensation device which is simple and compact in structure, convenient to install, good in flexibility and low in cost.)

1. The utility model provides a telescopic wave compensation device of compact, links to the frame, its characterized in that: comprises a multi-stage slide bar mechanism, a chain wheel transmission mechanism and a hook head;

the upper end of the multi-stage slide rod mechanism is connected to the rack, and the lower end of the multi-stage slide rod mechanism is connected with the hook head;

the chain wheel transmission mechanism is arranged in the multistage slide rod mechanism, is connected with the multistage slide rod mechanism and is used for driving the multistage slide rod mechanism to do telescopic motion.

2. The compact telescopic wave compensator of claim 1, characterized by: the multistage slide bar mechanism comprises a fixed bar, a middle slide bar and an inner slide bar;

the upper end of the fixed rod is connected to the rack;

the upper end of the middle sliding rod is inserted into the lower end of the fixed rod;

the upper end of the inner sliding rod is inserted into the lower end of the middle sliding rod, and the lower end of the inner sliding rod is connected with the hook head.

3. The compact telescopic wave compensator of claim 2, characterized by: the chain wheel transmission mechanism comprises a driving chain wheel, a driven chain wheel and a chain;

the driving chain wheel is positioned in the middle sliding rod, and the driven chain wheel is positioned in the inner sliding rod;

the chain is sleeved on the driving chain wheel and the driven chain wheel to form transmission connection;

one side of the chain is connected with the upper end in the middle sliding rod through a first connecting block, and the other side of the chain is connected with the upper end in the inner sliding rod through a second connecting block.

4. The compact telescopic wave compensator of claim 2, characterized by: the upper end of the fixed rod is hinged with the rack.

5. The compact telescopic wave compensator of claim 3, characterized by: the driving sprocket and the driven sprocket have the same diameter.

6. The compact telescopic wave compensator of claim 3, characterized by: the circle centers of the driving chain wheel and the driven chain wheel are positioned on the axis of the multi-stage slide rod mechanism.

7. The compact telescopic wave compensator of claim 3, characterized by: the driving chain wheel is connected with a motor.

Technical Field

The invention relates to the field of marine ships, in particular to a compact telescopic wave compensation device.

Background

The crane ship is a necessary tool for offshore loading and unloading, port construction and hoisting of various offshore platforms as the most common engineering ship in ocean engineering. In the process of offshore operation, the waiting probability of offshore operation of a hoisting mechanism caused by the problems of ship wave resistance, serious hook head swinging and the like exceeds 50 percent, so that the construction period is delayed, the production efficiency is reduced, and huge economic loss is caused. Heave compensation refers to compensation and correction performed by the fluctuation of working equipment caused by sea surface fluctuation. The wave compensation technology plays an important role in offshore supply, offshore drilling, deep sea exploration and the like.

At present, the wave compensating devices for offshore cranes have several types: the system comprises an active and traction combined type compensation device, an enterprise mixed type compensation device of an oil cylinder and an energy accumulator, a follow-up device, a hydraulic buffer compensation system and a comprehensive compensation device. The hoisting mechanism in the wave compensating device generally comprises a driving device (comprising a motor, a coupling, a brake, a speed reducer, a winding drum and the like), a steel wire rope winding device (comprising a steel wire rope, a winding drum, a fixed pulley and a movable pulley), a material taking device and a safety protection device. Along with the increase of the hoisting load, the diameter of a steel wire rope is increased, the specifications of a pulley and a winding drum are increased in multiples, the working load is increased, the parameters of a lifting oil cylinder are increased, the hoisting mechanism is huge, the optimized arrangement of the mechanism is not facilitated, the weight of the hoisting mechanism is increased, and the performance of the hoisting mechanism is reduced and the manufacturing cost is increased.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a compact telescopic heave compensation device, i.e. a compact telescopic heave compensation device with simple and compact structure, easy installation, good flexibility and low cost.

In order to achieve the purpose, the invention adopts the following technical scheme:

a compact telescopic wave compensation device is connected to a frame and comprises a multi-stage slide bar mechanism, a chain wheel transmission mechanism and a hook head;

the upper end of the multi-stage slide rod mechanism is connected to the rack, and the lower end of the multi-stage slide rod mechanism is connected with the hook head;

the chain wheel transmission mechanism is arranged in the multistage slide rod mechanism, is connected with the multistage slide rod mechanism and is used for driving the multistage slide rod mechanism to do telescopic motion.

Preferably, the multistage slide bar mechanism comprises a fixed bar, a middle slide bar and an inner slide bar;

the upper end of the fixed rod is connected to the rack;

the upper end of the middle sliding rod is inserted into the lower end of the fixed rod;

the upper end of the inner sliding rod is inserted into the lower end of the middle sliding rod, and the lower end of the inner sliding rod is connected with the hook head.

Preferably, the chain wheel transmission mechanism comprises a driving chain wheel, a driven chain wheel and a chain;

the driving chain wheel is positioned in the middle sliding rod, and the driven chain wheel is positioned in the inner sliding rod;

the chain is sleeved on the driving chain wheel and the driven chain wheel to form transmission connection;

one side of the chain is connected with the upper end in the middle sliding rod through a first connecting block, and the other side of the chain is connected with the upper end in the inner sliding rod through a second connecting block.

Preferably, the upper end of the fixed rod is hinged with the rack.

Preferably, the drive sprocket and the driven sprocket have the same diameter.

Preferably, the centers of circles of the driving sprocket and the driven sprocket are located on the axis of the multi-stage slide rod mechanism.

Preferably, the driving sprocket is connected with a motor.

According to the compact telescopic wave compensation device provided by the invention, a chain wheel and chain lifting mechanism is selected according to the calculation of related industry standards of a crane under the same load calculation, the diameter of the chain wheel is 1/2-1/4 of a pulley, the arrangement form is compact, the space is fully utilized, the lifting structure is optimized, a motor drives a driving chain wheel to drive a multi-stage slide rod to move in the vertical direction, and the stroke space is saved compared with a multi-stage oil cylinder.

In addition, compare with wire rope reel hoist mechanism, chain hoist mechanism rocks the range little, and stability is higher, and the impact force that the transmission can bear is bigger, simple to operate, operation safe and reliable, and the maintenance is convenient, and the cost is lower.

Therefore, the compact telescopic wave compensation device is more convenient, economic, safe and reliable, and has important practical significance for the development of ocean engineering and offshore resources.

Drawings

FIG. 1 is a schematic view of the compact telescopic heave compensation apparatus of the present invention in an expanded state;

fig. 2 is a schematic structural view of the compact telescopic wave compensator in a collapsed state.

Detailed Description

In order to better understand the technical solutions of the present invention, the following further describes the technical solutions of the present invention with reference to the accompanying drawings and examples.

Referring to fig. 1 and 2, the compact telescopic heave compensator provided by the invention is connected to a frame 100, and comprises a multi-stage slide bar mechanism 1, a chain wheel transmission mechanism 2 and a hook head 3 as a lifting mechanism of the compact telescopic heave compensator.

The upper end of the multi-stage slide bar mechanism 1 is connected to the frame 100, and the lower end is connected with the hook head 3.

The chain wheel transmission mechanism 2 is arranged in the multistage slide bar mechanism 1, is connected with the multistage slide bar mechanism 1 and is used for driving the multistage slide bar mechanism 1 to do telescopic motion.

The multistage slide bar mechanism 1 includes a fixed bar 101, a middle slide bar 102, and an inner slide bar 103.

The upper end of the fixing rod 101 is connected to the frame 100 by a hinge.

The upper end of the middle slide bar 102 is inserted into the lower end of the fixing rod 101 and can slide along the fixing rod 101, the upper end of the inner slide bar 103 is inserted into the lower end of the middle slide bar 102 and can slide along the middle slide bar 102, and the lower end is connected with the hook head 3.

The sprocket drive mechanism 2 includes a drive sprocket 201, a driven sprocket 202, and a chain 203.

The driving sprocket 201 is located in the middle slide bar 102, and the driven sprocket 202 is located in the inner slide bar 103.

The chain 203 is sleeved on the driving sprocket 201 and the driven sprocket 203 to form a transmission connection.

One side of the chain 203 is connected with the upper end in the middle slide bar 102 through a first connecting block 4, and the other side is connected with the upper end in the inner slide bar 103 through a second connecting block 5.

The diameters of the driving sprocket 201 and the driven sprocket 202 are the same, and the centers of the driving sprocket 201 and the driven sprocket 202 are located on the axis of the multi-stage sliding rod mechanism 1.

The driving sprocket 201 is connected with a motor (not shown in fig. 1) for driving the driving sprocket 201 to operate, and the type of the motor is not limited to servo, stepping motor, etc.

Referring to fig. 1 again, the fixed link 101 is connected to the frame 100 in an articulated manner, the driving sprocket 201 drives the chain 203 to rotate and output torque, one side of the chain 203 (i.e. the left side of the chain 203 in fig. 1) is connected to the middle slide bar 102 through the first connecting block 4, so as to control the middle slide bar 102 to move in the vertical direction, and the driven sprocket 202 and the driving sprocket 201 have the same diameter and are installed at both ends of the chain 203 in the vertical direction to rotate at the same speed and direction. The other side of the chain 203 (such as the right side of the chain 203 in fig. 1) passes through the second connecting block 5 and the inner slide bar 103, the movement of the inner slide bar 103 in the vertical direction is simultaneously controlled when the chain wheel 203 rotates, and the first connecting block 4 and the second connecting block 5 ensure that the middle slide bar 102 and the inner slide bar 103 move in the vertical direction at the same speed and direction, so that the telescopic movement of the compact telescopic wave compensator in the vertical direction is realized. The inner slide bar 103 is connected to the hook head 3, and the hook head 3 is directly used to lift the weight 6.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.