Weighing hydraulic control structure of large structures based on speed control

A large-scale structure and control structure technology, applied in the direction of lifting devices, etc., can solve problems such as economic losses, tipping, and platform slipping

Inactive Publication Date: 2016-04-13
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the platform is supported by multiple points and is completely rigid structure, if the synchronous jacking control cannot be well realized during the weighing process, the rising height of each jack is different, the platform may be bent and deformed, and the platform structure will be seriously damaged. The inclination of the platform may also cause the platform to slip or even tip over, causing major economic losses

Method used

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  • Weighing hydraulic control structure of large structures based on speed control
  • Weighing hydraulic control structure of large structures based on speed control
  • Weighing hydraulic control structure of large structures based on speed control

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Embodiment Construction

[0009] The present invention will be described in detail below in conjunction with the accompanying drawings and specific examples.

[0010] Such as figure 1 As shown, the oil supply oil passages and oil return oil passages 17 - 1 , 17 - 2 of the four jacking units 1 with the same structure of the present invention can be connected with one pump station 16 .

[0011] Such as Figure 2-3 The large-scale structure weighing hydraulic control structure based on speed regulation control shown in the present invention includes four jacking units 1 with the same structure, each jacking unit 1 is installed on a bracket 14, and each bracket 14 is equipped with a pull-wire displacement sensor 13, and the pull-wire end of the pull-wire displacement sensor 13 is connected to the large structure 15 installed on the four jacking units 1 to measure the jacking and descending displacement of each jacking unit 1, Four pull-wire displacement sensors 13 are connected with the programmable logi...

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Abstract

The invention discloses a large-scale structure weighing hydraulic control structure based on speed control. The structure comprises four jacking units, wherein each jacking unit is installed on a bracket, a bracing wire displacement sensor is installed on each bracket, the bracing wire ends of the bracing wire displacement sensors are connected with a large-scale structure installed on the four jacking units, the four bracing wire displacement sensors are connected with a programmable logic controller and transmit the measured jacking and descending displacements of the jacking units to the programmable logic controller, the smallest jacking and descending displacement value output by one bracing wire displacement sensor serves as a reference value and is compared with the displacement values of the other three bracing wire displacement sensors by the programmable logic controller, and then a displacement control signal is output to the jacking units connected with the other three bracing wire displacement sensors so that the displacement values of the other three jacking units can be kept consistent with the displacement value of the reference jacking unit. The synchronous accuracy requirement can be met through the structure.

Description

technical field [0001] The invention relates to a hydraulic control structure, in particular to a hydraulic control structure for weighing large structures based on speed regulation control. Background technique [0002] The installation of offshore oil platforms is an important part of offshore engineering. The weight and center of gravity distribution of large structures are important control parameters for the offshore installation of structures. The accurate weight and center of gravity position play a decisive role in the selection of floating cranes and slings. Since the platform is supported by multiple points and is completely rigid structure, if the synchronous jacking control cannot be well realized during the weighing process, the rising height of each jack is different, the platform may be bent and deformed, and the platform structure will be seriously damaged. The tilt of the platform may also cause the platform to slip or even tip over, causing major economic l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66F3/46
Inventor 章青片成荣张育坤石云飞
Owner TIANJIN UNIV
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