Control system and control method of landing legs

Abstract

The invention discloses a control system of landing legs. The landing legs at least comprise a fixed landing leg, a movable landing leg, a hydraulic cylinder and a proportional electromagnetic valve, wherein the fixed landing leg and the movable landing leg are mutually nested; the hydraulic cylinder is arranged between the fixed landing leg and the movable landing leg and used for driving the fixed landing leg and the movable landing leg to relatively stretch; the proportional electromagnetic valve is connected with the hydraulic cylinder and used for controlling the stretching speed of the movable landing leg. The control system comprises a sensor system and a controller coupled to the sensor system, wherein the sensor system is used for detecting the relative position of the fixed landing leg and the movable landing leg; the controller is coupled to the proportional electromagnetic valve and used for outputting a corresponding control signal to the proportional electromagnetic valve according to the detected opposite position, so as to control the stretching speed of the movable landing leg. The invention also discloses a control method corresponding to the control system of the landing legs. In the manner, the stretching speed of the movable landing leg relative to the fixed landing leg can be controlled and adjusted according to the relative position of the fixed landing leg and the movable landing leg detected by the sensor system.

Description

technical field [0001] The invention relates to the field of mechanical equipment, in particular to a control system and a control method for an outrigger. Background technique [0002] At present, the horizontal outrigger oil cylinder used in construction machinery and equipment uses a three-position four-way switch solenoid valve to control the oil in and out of the oil cylinder, and then controls the expansion and contraction of the horizontal outrigger. Proximity switches are installed on the fixed outriggers of the frame to check whether the horizontal outriggers are fully extended and half-extended, and there are sensor blocks that are fully extended and half-extended on the movable outriggers. The outriggers are telescopic to a fully extended or half-extended position. [0003] The oil in and out of the outrigger cylinder is controlled by a switch solenoid valve, which can only control the expansion and contraction of the outriggers, and the speed of expansion and co...

AI Technical Summary

Problems solved by technology

[0003] The oil in and out of the outrigger cylinder is controlled by a switch solenoid valve, which can only control the expansion and contraction of the outriggers, and the speed of expansion and contraction cannot be adjusted, so that it is easy to overshoot when the outriggers are half-extended, and it is difficult to achieve accurate half-extended working conditions. It has a lot to do with your experience. If you have insufficient experience, it is easy to cause danger if you carry out half-extended loading in the non-half-extended position.

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