Hydraulic control system and apparatus for split positioning of ship body

Abstract

The invention discloses a hydraulic control system and a device used for the location of a ship body by sections. Three hydraulic cylinders that are mutually orthogonal are adopted; wherein, the piston rod of a hydraulic cylinder with a displacement sensor moves up and down; the other two hydraulic cylinders push the hydraulic cylinder to move front and back as well as left and right on a horizontal plane. The moving displacement on the horizontal plane of the hydraulic cylinder the piston rod of which moves up and down is monitored and recorded by a displacement sensor; the recorded data is input into a PCL control circuit, thereby further controlling the expansion amount of the other two hydraulic cylinders to be capable of ensuring the hydraulic cylinder the piston rod of which moves up and down to make translational motion on the horizontal plane. The system and the device of the invention can adjust and control the precise positions of up and down, front and back as well as left and right of the substances arranged at the hydraulic cylinder the piston rod of which moves up and down. Location with high precision can be carried out on the ship body by sections according to the free combinations of three or multiple devices.

Description

technical field [0001] The invention relates to a hydraulic control system, in particular to a hydraulic control system and a device for section positioning of a hull. Background technique [0002] The closure of the hull sections is an important work content in the overall assembly process of the hull, and the positioning of the sections is an important part of the section closure work. The accuracy and speed of positioning are directly related to the quality of the hull construction and the ship construction cycle. Therefore, improving the accuracy and speed of hull segment positioning is of great significance for shipbuilding. [0003] Currently, this work is mainly done in the dock area. Taking segment positioning on the berth as an example, some preparatory work is required before positioning. One is to install two elastic screws at the front and rear ends of the hoisted bottom segment, and tie the other end of the screw to the berth on the berth. The second is to sel...

AI Technical Summary

Problems solved by technology

[0004] Using elastic screws and oil tops for segment positioning has two major disadvantages: first, the crane must hang the segment and keep it suspended in the air, and the elastic screw can adjust the segment, which will reduce the effective operating time of the crane

Second, whether it is the elastic screw or the oil cap, it is manual operation, which is labor-intensive and the positioning accuracy is not high.

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