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Rapid lifting hydraulic circuit of pile leg of hydraulic bolt type lifting system

A lifting system and hydraulic circuit technology, applied in the field of hydraulic circuit, can solve the problem of increasing the total time of platform lifting, and achieve the effect of shortening time and increasing speed

Active Publication Date: 2017-12-15
SHANGHAI HUNTER MARINE EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the existing hydraulic lifting circuit method is still used to realize the lifting action of the pile legs, as the operating water depth of the platform continues to increase, it will inevitably lead to a substantial increase in the total time of platform lifting

Method used

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  • Rapid lifting hydraulic circuit of pile leg of hydraulic bolt type lifting system
  • Rapid lifting hydraulic circuit of pile leg of hydraulic bolt type lifting system

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The following is attached figure 1 , figure 2 , a specific embodiment of the present invention will be further described in detail.

[0015] Such as figure 1 , as shown in 2, the present invention provides a rapid lifting hydraulic circuit for legs applied to a hydraulic bolt-type lifting system. The hydraulic circuit includes: motor 1, hydraulic pump 2, one-way valve 3, first electromagnetic overflow valve 4, high-pressure filter 5, cooler 6, oil return filter 7, oil tank 8, and the first O-type three-position Four-way valve 9, the second type 0 function three-position four-way valve 10, the second electromagnetic overflow valve 11, shuttle valve 12, balance valve 13, lifting cylinder group 14.

[0016] In this embodiment, the oil inlet of the hydraulic pump 2 is connected to the oil tank 8, and the oil outlet of the hydraulic pump 2 is connected to the inlet of the one-way valve 3; the outlet of the one-way valve 3 is connected to the A port of the first electroma...

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Abstract

The invention relates to a rapid pile leg lifting hydraulic circuit of a hydraulic bolt-type lifting system. The rapid pile leg lifting hydraulic circuit comprises a motor, a hydraulic pump, a magnetic overflow valve and a lifting oil cylinder group, wherein the lifting oil cylinder group is provided with a rod cavity oil way and a rodless cavity oil way, the magnetic overflow valve is connected between the rod cavity oil way and the rodless cavity oil way to form a differential regeneration loop, rapid differential motion of the lifting oil cylinder group is achieved, and the pile leg lifting speed is improved. According to the rapid pile leg lifting hydraulic circuit, the differential regeneration loop is formed between the rod cavity oil way and the rodless cavity oil way of the lifting oil cylinder group during pile leg lifting, the pile leg lifting speed is improved, the capability of the hydraulic circuit is played to the most degree, and the total platform lifting time is shortened.

Description

technical field [0001] The invention relates to a hydraulic bolt type lifting system, in particular to a hydraulic circuit for the hydraulic bolt type lifting system. Background technique [0002] The hydraulic pin-type lifting system is suitable for platforms that need frequent lifting and high speed requirements. The lifting circuit of its hydraulic system includes hydraulic oil source, lifting valve group, lifting cylinder group and other components. The hydraulic oil source realizes the lifting action by controlling the solenoid valve of the lifting valve group. [0003] In the hydraulic lifting circuit of the existing lifting system, when the piston rod of the lifting cylinder group is stretched out, the hydraulic oil source oil enters the rodless chamber of the lifting cylinder group, and the oil in the rod chamber of the lifting cylinder group returns to the oil tank, and the maximum extension of the piston rod of the lifting cylinder group The output speed depends o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/06F15B13/044F15B11/024F15B11/17E02B17/08
CPCE02B17/0809F15B11/024F15B11/17F15B13/06F15B2013/004F15B2013/0448F15B2211/20515F15B2211/20576
Inventor 张兴恩洪超徐军
Owner SHANGHAI HUNTER MARINE EQUIP CO LTD