A hydraulic plug-type oil cylinder lifting system

A lifting system and pin-type technology, applied in the direction of fluid pressure actuating device, servo motor, servo motor assembly, etc., can solve the problems of high cost and complicated lifting system of self-elevating platform, so as to reduce production cost and simplify control. The effect of the oil circuit

Active Publication Date: 2015-07-29
WUHAN MARINE MACHINERY PLANT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of complex lifting system and high cost of the self-elevating platform, the embodiment of the present invention provides a hydraulic bolt type cylinder lifting system

Method used

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  • A hydraulic plug-type oil cylinder lifting system
  • A hydraulic plug-type oil cylinder lifting system

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Embodiment

[0032] The embodiment of the present invention provides a hydraulic plug-type oil cylinder lifting system, such as figure 1 and figure 2 As shown, the lifting system includes: a first lifting cylinder 141, a first upper pin cylinder 101, a first lower pin cylinder 102, a three-position four-way reversing valve 2, a two-position four-way reversing valve 3, a first cartridge Valve 171, the first two-position three-way pilot valve 181 and three-position four-way electro-hydraulic reversing valve 6; the first oil port of the two-position four-way reversing valve 3 communicates with the oil inlet 24 of the lifting system, and the two-position four-way The second oil port of the directional reversing valve 3 is closed, the third oil port of the 2-position 4-way reversing valve 3 communicates with the oil inlet port of the first 2-position 3-way pilot valve 181, and the first 2-position 3-way pilot valve 181 The first oil outlet of the first cartridge valve 171 is connected with th...

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PUM

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Abstract

The invention discloses a hydraulic plug pin type oil cylinder jacking system, and belongs to the field of self-elevating platform hydraulic jacking systems. The hydraulic plug pin type oil cylinder jacking system comprises a first jacking oil cylinder, a first upper plug pin oil cylinder, a first lower plug pin oil cylinder, a three-position four-way reversing valve, a two-position four-way reversing valve, a first cartridge valve, a first two-position three-way pilot valve and a three-position four-way electric hydraulic reversing valve. The first oil port of the two-position four-way reversing valve is communicated with the oil inlet of the jacking system, the second oil port of the two-position four-way reversing valve is closed, the third oil port of the two-position four-way reversing valve is communicated with the oil inlet of the first two-position three-way pilot valve, the first oil outlet of the first two-position three-way pilot valve is communicated with the control oil port of the first cartridge valve, and the second oil outlet of the first two-position three-way pilot valve is communicated with an oil tank. According to the hydraulic plug pin type oil cylinder jacking system, due to the fact that the number of valve banks adopted is small, the control oil pipeline of the hydraulic plug pin type oil cylinder jacking system is simplified, and production cost is reduced.

Description

technical field [0001] The invention relates to the field of hydraulic lifting systems, in particular to a hydraulic bolt type oil cylinder lifting system. Background technique [0002] Jack-up drilling platform, also known as pile-foot drilling platform, is the most widely used drilling platform at home and abroad. The jack-up platform includes platform mechanism, pile legs, lifting mechanism and living building. When the jack-up platform is operating , the legs extend to the bottom of the sea and stand on the seabed. The jack-up platform uses the legs to support the hull of the platform, and keeps the bottom of the platform mechanism away from the sea surface for a certain distance; when the jack-up platform is towed, the legs are retracted, and the platform mechanism in a floating state. [0003] In the prior art, there is a hydraulic lifting system for a self-installation oil production platform, specifically a hydraulic plug-type lifting system used in the lifting proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/16F15B13/02
Inventor 刘利明徐兵王荣军刘智雄
Owner WUHAN MARINE MACHINERY PLANT
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