Hydraulic system for pile driving barge

A technology of hydraulic system and piling ship, applied in the field of hydraulic system, can solve problems such as large pressure shock, and achieve the effects of small pressure shock, low vibration and noise, and stable depressurization process

Inactive Publication Date: 2017-03-15
CCCC SECOND HARBOR ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned problems in the prior art, the present invention provides a hydraulic system for piling ships, which solves the problem of large pressure shocks when the system is boosted and unloaded. Stable pressure and pressure relief, small pressure shock

Method used

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  • Hydraulic system for pile driving barge
  • Hydraulic system for pile driving barge
  • Hydraulic system for pile driving barge

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Experimental program
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Effect test

Embodiment 1

[0037] Such as figure 1 As shown, the hydraulic system for the piling ship in Embodiment 1 of the present invention includes a hydraulic pump oil supply circuit, and the hydraulic pump oil supply circuit includes two pressure and power compound control variable pumps, and the two pressure and power compound control The variable pumps are connected in parallel, and the oil ports on the oil discharge pipelines of the two pressure and power compound controlled variable pumps are each connected in parallel with a pressure buffer control valve group; the pressure buffer control valve group includes a first pilot relief valve 2. The first decompression valve 5, the first fixed orifice 24, the first adjustable orifice 25, the first one-way valve 26 and the first electromagnetic reversing valve 21;

[0038] The structure and connection method of the two pressure and power compound control variable pumps are the same, and the structure, technical parameters and connection method of the...

Embodiment 2

[0041] Such as figure 1 As shown, the hydraulic system for the piling ship in Embodiment 2 of the present invention includes a hydraulic pump oil supply circuit, and the hydraulic pump oil supply circuit includes two pressure and power compound control variable pumps, and the two pressure and power compound control The variable pumps are connected in parallel, and the oil ports on the oil discharge pipelines of the two pressure and power compound controlled variable pumps are each connected in parallel with a pressure buffer control valve group; the pressure buffer control valve group includes a first pilot relief valve 2. The first decompression valve 5, the first fixed orifice 24, the first adjustable orifice 25, the first one-way valve 26 and the first electromagnetic reversing valve 21;

[0042] Such as figure 2 As shown, the hydraulic pump oil supply circuit also includes a load sensitive pressure control valve group, the load sensitive pressure control valve group is c...

Embodiment 3

[0046] Such as Figures 1 to 4 As shown, the hydraulic system for piling ships in Embodiment 3 of the present invention includes a hydraulic pump oil supply circuit, a ship-moving winch control circuit, and a pile frame luffing hydraulic cylinder control circuit; The oil circuit generally includes the fuel tank, the main oil supply circuit, the total pressure oil circuit, the total oil drain circuit, the total oil return circuit and the hydraulic control circuit, specifically including the control oil main pipe Pk, the oil return main pipe T, the oil drain main pipe L and the pressure oil Manager P et al.

[0047] The oil supply circuit of the hydraulic pump is composed of two pressure and power compound control variable pumps 28 and 37, the pressure buffer control valve groups 6 and 23, the load sensitive pressure control valve groups 27 and 35 to which the above variable pumps belong respectively; and one The constant pressure variable pump 1 and its associated electromagne...

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Abstract

The invention provides a hydraulic system for a pile driving barge. The hydraulic system for the pile driving barge comprises a hydraulic pump oil supplying loop which consists of a constant-pressure variable pump and a control valve set of the constant-pressure variable pump, wherein an oil absorbing port of the constant-pressure variable pump communicates with an oil tank which is used for supplying oil; the hydraulic pump oil supplying loop further comprises at least two pressure and power combined control variable pumps which are interconnected in parallel; oil ports in oil draining pipelines of the pressure and power combined control variable pumps are connected with pressure buffering control valve sets; each pressure buffering control valve set comprises a first pilot overflowing valve, a first pressure reduction valve, a first fixed throttling port, a first adjustable throttling port, a first one-way valve and a first electromagnetic reversing valve. The hydraulic system for the pile driving barge can be started with no load, is stable to increase and release pressure, can be automatic to adjust matched power, and is constant in tension of a steel cable in releasing during barge moving. The hydraulic system for the pile driving barge has the advantages of being small in pressure impact, low in vibration and noise, obvious in energy saving effect, small in calorific value, and accurate to position in pile driving.

Description

technical field [0001] The invention belongs to the field of pressure control, in particular to a hydraulic system for a piling ship. Background technique [0002] The piling barge is the leading equipment for the construction of underwater pile foundations such as bridges, wharves, and water conservancy projects. It is characterized by large installed power, complex structure, and harsh working environment. At present, the equipment such as the ship moving winch and pile frame of the existing piling ships at home and abroad are all driven by hydraulic pressure, and their hydraulic systems include hydraulic pump oil supply circuits and so on. [0003] Due to the high working pressure and large required flow of the hydraulic system of the piling ship, in the oil supply circuit of the hydraulic pump, a large displacement pressure and power compound control variable pump is usually used to supply oil. In order to prevent the high-power diesel engine from starting with load, an...

Claims

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Application Information

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IPC IPC(8): F15B11/10F15B13/02
CPCF15B11/10F15B13/021F15B2211/20546F15B2211/20576
Inventor 陈晓玉向勇罗农程正样邹智勇万会雄周平杨殿龙胡亮万高段勇
Owner CCCC SECOND HARBOR ENG
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