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Combined type heave compensating device

A wave compensation and compound technology, applied in cranes and other directions, can solve problems such as high energy consumption and energy consumption

Inactive Publication Date: 2013-04-10
NANJING NAUTICAL INSTR PLANT NO 2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The advantage of this kind of compensation device is that the compensation range can be very large, but the disadvantage is that it consumes energy all the time, and the energy consumption is very large. It has a lot of power and heating problems when used in deep sea with large undulations.

Method used

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  • Combined type heave compensating device

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Embodiment Construction

[0011] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0012] see figure 1 , the present invention includes base plate 8, two winches 2 used as lifting and lowering base plate 8, oil cylinder pulley block and base 1, oil cylinder pulley block includes steel wire rope, fixed pulley 3, movable pulley 4 and plunger type wave compensating oil cylinder, each The winches 2 are respectively connected to the base plate 8 through wire ropes. The plunger type wave compensation oil cylinder is installed on the base 1. The outer position switch 10 and the inner position switch 9 are also fixed on the base 1. The plunger type wave compensation oil cylinder includes a cylinder body 5 and the plunger 6 that can move in the cylinder 5, the fixed pulley 3 is fixed on the bottom of the cylinder 5, the movable pulley 4 ...

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Abstract

The invention discloses a combined type heave compensating device, comprising a base plate and a winch used for lifting the base plate; wherein the winch is connected with the base plate by virtue of a cylinder pulley block, the cylinder pulley block comprises a fixed pulley, a movable pulley and a plunger type heave compensating cylinder as well as a pedestal, the plunger type heave compensatingcylinder is arranged on the pedestal, the plunger type heave compensating cylinder comprises a cylinder body and a plunger which can move in the cylinder body, the fixed pulley is fixed at the bottomend of the cylinder body, the movable pulley is arranged on the plunger, the cylinder body is connected with an energy accumulator by virtue of an oil pipe, the pedestal is respectively fixed with anouter side position switch and an inner side position switch which are used for starting drift compensation, and the plunger is provided with a support which can touch the outer side position switch and the inner side position switch. The invention combines active compensation and passive compensation and has the advantages of low energy consumption and wide compensation range.

Description

technical field [0001] The invention relates to a heave compensation device, in particular to a compound heave compensation device. Background technique [0002] Heave compensation, that is, constant tension device, is currently being widely used in various ships, especially engineering ships. For example, the rake suction head or hinge suction head on a rake suction or hinge suction dredger works poorly when the contact force with the river bottom is too small, and when the contact force with the river bottom is too large, it will be overloaded and unable to work. The best working contact force at the bottom is often to use constant tension traction on the suction head (that is, the gravity of the suction head minus the constant tension is the best working contact force). This constant traction tension is generally provided with a heave compensator. [0003] There are two types of heave compensators: active compensation and passive compensation. Passive compensation consi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/53
Inventor 何志欣沈大明丁汝森孙平徐建忠许爱军
Owner NANJING NAUTICAL INSTR PLANT NO 2
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