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A control device for a heave compensator

A control device and wave compensation technology, applied to cranes and other directions, can solve problems such as poor stability, large hydraulic shock, and slow response speed of hydraulic cylinders

Inactive Publication Date: 2016-07-06
ANHUI POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electro-hydraulic control technology can be easily combined with the computer, so that the electro-hydraulic control system can make full use of the information processing ability of the computer, so that the system has more complex functions and wider adaptability; in the prior art, the hydraulic cylinder is usually used as the actuator. The hydraulic cylinder has the disadvantages of slow response speed, short stroke, relatively large hydraulic shock, poor control stability, etc., and cannot well meet the needs of wave compensation.

Method used

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  • A control device for a heave compensator
  • A control device for a heave compensator

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Embodiment Construction

[0020] The principle of the control device of the heave compensator of the present invention is to use the hydraulic motor as the actuator, and adopt force servo hydraulic control. While satisfying the alternating load on the control rope, it can also perform certain wave compensation for the speed of the hoisted goods. effect.

[0021] Such as figure 1 , figure 2 As shown, the control device of the heave compensator of the present invention includes a computer control device 1; the computer control device 1 is connected with an AD sampling module 2 and a DA control module 3; the AD sampling module 2 is connected with a force servo hydraulic control system 4 The force sensor; the DA control module 3 is electrically connected to the solenoid valve of each oil circuit of the force servo hydraulic control system 4; Composition of servo hydraulic control circuit and oil supply system;

[0022] The balance circuit / synchronous pressure maintaining circuit includes the first one-...

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Abstract

The invention discloses a control device of a heave compensator. The control device comprises a computer control device. The computer control device is connected to an AD sampling module and a DA control module. The AD sampling module is connected to a force sensor of a force servo hydraulic control system. The DA control module is electrically connected to solenoid valves of oil passages of the force servo hydraulic control system. The force servo hydraulic control system comprises a balance circuit / synchronous pressure holding circuit, a pressure-reduction throttling circuit, a force servo hydraulic control circuit and an oil supplement system. The control device of the heave compensator utilizes a hydraulic motor as an executive component, utilizes force servo hydraulic control, can fast, accurately and stably control alternating load on a rope, and can produce a certain heave compensation effect on a rate of a hung cargo.

Description

technical field [0001] The invention relates to a hydraulic control device, in particular to a control device for a heave compensator. Background technique [0002] The wave compensator is an important part of offshore engineering equipment. Its function is to reduce the impact of wind and wave motion on engineering equipment when operating at sea; with the continuous development and development of the marine field, the application range of wave compensators used in the offshore field is increasing. The more widespread, offshore construction, drilling platforms, ship replenishment, deep-sea resource exploitation and other operations must use wave compensation technology; the existing domestic closest wave compensation technology is divided into two types of compensation technology, one is the follow-up compensation method , and the other is active heave compensation control technology. [0003] The follow-up compensation method can absorb the impact well. Before and after t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/53
Inventor 王幼民严锦玉
Owner ANHUI POLYTECHNIC UNIV