Displacement process and state control structure of hydraulic lifting of large structures
A large structure, hydraulic lifting technology, applied in the direction of fluid pressure actuation device, fluid pressure actuation system components, servo motors, etc., can solve the problem of support points without large rigidity, excessive force, no force, etc. question
Active Publication Date: 2016-01-20
TIANJIN UNIV
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Problems solved by technology
[0003] For some large-scale structures, they have the characteristics of large structure, soft rigidity, and no support points with high rigidity. Due to the unevenness of the construction site, the traditional displacement technology is used to directly displace the structure. Non-uniform force such as excessive force or no force
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[0008] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in detail:
[0009] As shown in the accompanying drawings, the process and state control structure of hydraulic lifting displacement of large structures of the present invention includes at least two groups of lifting cylinders 1 and at least two traverse hydraulic cylinders 15, and each group of lifting cylinders 1 includes two Lifting cylinders, the rod-side oil chambers of each lifting cylinder are respectively connected to the first connection port of a first three-position four-way valve 7 through the first oil supply pipeline, and the rodless side oil chambers of each lifting cylinder Respectively through the first oil return pipeline equipped with pressure sensor 2, hydraulic control check valve 3, first two-position three-way valve 4 and electro-hydraulic proportional pressure reducing valve 16 and the first three-position four-way valve 7 The second connect...
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The invention discloses a structure for controlling a hydraulic lift shifting process and state of large-scale structures. A rod side oil chamber of each lifting oil cylinder is connected with a first connector of a first three-position four-way valve, a non-rod side oil chamber of each lifting oil cylinder is connected with a second connector of the first three-position four-way valve through pipelines, a third connector of the first three-position four-way valve is connected with an oil tank, and a fourth connector of the first three-position four-way valve is connected with the oil tank; rod side oil chambers of two transverse hydraulic cylinders are connected with a first connector of a second three-position four-way valve respectively through second oil return pipelines, a second connector of the second three-position four-way valve is connected with an oil return main pipe through a third oil return pipeline, non-rod side oil chambers of the two transverse hydraulic cylinders are connected with a third connector of the second three-position four-way valve through a second oil supply pipeline of a second two-position three-way valve, and a fourth connector of the second three-position four-way valve is communicated with a main oil supply pipeline. Through the structure, the possibility of accidents is reduced.
Description
technical field [0001] The invention relates to a control structure, in particular to a hydraulic lifting displacement process and state control structure of a large structure. Background technique [0002] Since the reform and opening up, my country's economy has developed rapidly, and the oil extraction equipment in the marine industry, such as offshore platforms, jackets, drilling rigs, and offshore modular factories, has become more and more high, large, and heavy. It needs to be transported to the offshore oil exploration sea area or other places for assembly. Therefore, in view of the above situation, whether these buildings and large structures with protection value can be smoothly moved plays a key role in the whole process. [0003] For some large-scale structures, they have the characteristics of large structure, soft rigidity, and no support points with high rigidity. Due to the unevenness of the construction site, the traditional displacement technology is used t...
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IPC IPC(8): F15B11/00F15B21/00
Inventor 章青张育坤吴楠赵磊
Owner TIANJIN UNIV