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Hydraulic power unit system capable of automatically controlling and distributing oil quantity and jacking and falling method of hydraulic power unit system

A technology of linkage control system and hydraulic pump station, applied in the field of hydraulic jacking, can solve the problems of limited precise control of jack displacement and so on

Active Publication Date: 2015-09-02
SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the lifting operation process of traditional thin jacks, the lifting operation of multiple thin jacks is controlled at the same time through the PLC system and displacement sensors, resulting in limited accurate control of the displacement between multiple jacks

Method used

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  • Hydraulic power unit system capable of automatically controlling and distributing oil quantity and jacking and falling method of hydraulic power unit system
  • Hydraulic power unit system capable of automatically controlling and distributing oil quantity and jacking and falling method of hydraulic power unit system
  • Hydraulic power unit system capable of automatically controlling and distributing oil quantity and jacking and falling method of hydraulic power unit system

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Embodiment Construction

[0050] See attached Figure 1-19 As shown, this embodiment provides a three-stage double-acting self-fitting hydraulic jack 7 and a hydraulic pump station system 44 for automatically controlling and distributing oil. The external structure of each three-stage double-acting self-fitting hydraulic jack 7 consists of a first-stage piston cylinder 6, a second-stage piston cylinder 5, a third-stage piston cylinder 1, an external oil cylinder 43, and a digital flowmeter 8 (equipped with Digital flowmeter data line 22) and oil cylinder oil inlet 9 are composed together, such as figure 1 with Figure 15 As shown, the second stage piston cylinder 5 and the third stage piston cylinder 1 are arranged inside the first stage piston cylinder 6. The oil volume automatic control and distribution hydraulic pump station system 44 is configured by installing multiple three-stage double-acting self-fitting hydraulic jacks 7 of the same type and specifications between the bridge girder body 35 and t...

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Abstract

The invention provides a hydraulic power unit system capable of automatically controlling and distributing oil quantity and a jacking and falling method of the hydraulic power unit system. The hydraulic power unit system comprises a linkage control system. The linkage control system is connected with a plurality of PLC hydraulic power units which are in one-to-one correspondence and a PLC adjusting oilway distributor through integrated data lines. The high-pressure oil pipe output ends and the data ports of the PLC hydraulic power units are respectively connected with the oil input end and the data port of the PLC adjustable oilway distributor. The PLC adjustable oilway distributor is connected with at least one digital flowmeter of a hydraulic jack through one single data line and is connected to the oil inlet of the hydraulic jack through a high-pressure oil pipe, the PLC adjustable oilway distributor reads the dynamic oil quantity information of the hydraulic jack and generates a control instruction according to a preset program so as to adjust the opening and closing of the oil supply lines in the PLC adjustable oilway distributor, and precise control of displacement of multiple jacks is achieved.

Description

Technical field [0001] The invention relates to the technical field of hydraulic jacking, and in particular to a hydraulic pump station system for automatic oil volume control and distribution and a jacking and falling method. Background technique [0002] In the process of bridge jacking construction, traditional hydraulic jacks are composed of cylinders, pistons, sealing rings, bases, hydraulic oil and other components, together with Programmable Logic Controller (PLC) system, balanced oil distributor and high-pressure oil pipes , Hydraulic oil single-acting oil pump and precise displacement monitoring device (displacement sensor) to realize the synchronous lifting and lowering operation of the whole or partial components of the bridge. At present, most of the upper beam structures of elevated bridges use hollow slab beams, box beams, trough beams and T-shaped plate beams, and the main structure of the supporting beam body is the cover beam, and rubber supports are set between ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00
Inventor 黄铭丰叶梅宋道军蒋韵旸计晓萍任东斌吴申王春晖
Owner SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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