Overturning type elevator hydraulic system based on loading opening independent control

Abstract

The invention provides an overturning type elevator hydraulic system based on loading opening independent control. The overturning type elevator hydraulic system based on loading opening independent control comprises an oil tank, a metering pump, a first overflow valve, an oil supply valve group, a hydraulic lock valve group, a sequence valve group and an executing mechanism, wherein the oil tankis used for storing the hydraulic oil required by the hydraulic system; the metering pump is used for providing hydraulic oil at a constant flow rate for the hydraulic system; the first overflow valveis used for enabling the hydraulic system to realize overflow at a constant pressure; the oil supply valve group is used for supplying oil for the hydraulic system, and controlling the executing mechanism to move; the hydraulic lock valve group is used for closing an oil channel; the sequence valve group is used for controlling the sequence of extending and contracting of the executing mechanism;and the executing mechanism comprises a valve hydraulic cylinder, a lock bolt hydraulic cylinder, an overturning hydraulic cylinder, a hoisting touch spring cylinder, an induction lock bolt spring cylinder and a top drive discharging spring cylinder. Through the adoption of the overturning type elevator hydraulic system based on loading opening independent control disclosed by the invention, theproblem that at present, the hydraulic system of the overturning elevator cannot well meet all kinds of functional requirements of the overturning elevator is solved; the function requirements of a valve, a lock bolt, overturning and the like are realized; a hoisting touch signal, a sensing lock bolt closing signal, and a top drive discharging signal can be detected through a hydraulic pipeline, so that automatic control of elevator operation is realized.

Description

technical field [0001] The invention relates to the technical field of hydraulic transmission and control, in particular to a hydraulic system that utilizes the independent control technology of the load port to realize various functional requirements of a reversible elevator. Background technique [0002] As one of the key equipment in the process of onshore oil exploration and development, the elevator is mainly used to lift pipe tools such as drill pipe, tubing and casing. Lifting out or running in drilling tools, tubing and casing. The more common form of elevators is the manual mechanical type. The manual mechanical elevators are all manually operated, which requires frequent replacement, low operating efficiency, heavy labor and no guarantee of work safety. [0003] Therefore, a hydraulic reversible elevator appeared. Its main principle is to rely on hydraulic drive to realize the safe opening and closing of the elevator valve and latch, and the reversing of the eleva...

AI Technical Summary

Problems solved by technology

[0005] The invention discloses a flip-type elevator hydraulic system based on the independent control of the load port, which solves the problem that the current flip-type elevator hydraulic system cannot well meet various functional requirements of the flip-type elevator, and realizes , overturning and other functional requirements, and can detect the lifting touch signal, the sensor latch closing signal, and the top drive lowering signal through the hydraulic pipeline, so as to realize the automatic control of the elevator operation

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