Real-time leveling base for floating type well drilling derrick

Abstract

The invention provides a real-time leveling base for a floating type well drilling derrick. Four supporting oil cylinders vertically support an upper derrick structure through supporting sliding blocks, upper oil cavities of two oil cylinders on a diagonal line are directly connected through an oil pipe, and lower cavities are respectively connected with two oil cavities of leveling oil cylinders. A two-dimensional tilt sensor is used for monitoring a two-dimensional tilt angle of a derrick base in real time, a PLC controller is used for receiving a signal of the sensor and sending positive and negative electric signals with a corresponding proportion to a motor driver to ensure that an electric push rod acts according to the required direction and the speed to push pistons of the leveling cylinders to move so as to drive a group of opposite angle supporting oil cylinders connected with the leveling cylinders for lifting and descending linkage for controlling the tilt degree of a diagonal line and keeping the derrick base in a horizontal state in real time. The invention overcomes the defect of incapability of real-time leveling in a swinging environment on the sea of the traditional leveling device, realizes that the derrick is in a horizontal state because of swinging with a ship body under a sea wind wave environment, and can obtain horizontal adjustment on land.

Description

Technical field: [0001] The invention relates to an automatic leveling derrick base, which can be used as a derrick base of a drilling ship or a floating drilling platform to maintain the horizontal state of the derrick in an ocean stormy environment, and belongs to the technical field of engineering machinery control. Background technique: [0002] At present, the leveling device generally consists of a level monitor, a controller, a workbench, and telescopic supporting legs. When the workbench is in a non-horizontal state, the controller obtains the control signal of the support leg according to the tilt signal provided by the level detector, drives the support leg to move, adjusts the workbench to the level, and fixes the length of the support leg to keep the workbench in a horizontal state . However, the existing leveling devices are only aimed at the land environment with the ground as a stable base, most of which can only achieve one-time leveling, lack of real-time l...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a real-time leveling base of a floating drilling derrick, which overcomes the deficiency that the existing leveling device cannot be leveled in real time in a sea swaying environment, and realizes maintaining the level of the derrick with the swaying of the ship hull in a sea wind and wave environment state, and can also achieve level adjustment on land

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