Control system of vehicle-mounted hydraulic support leg and control method

Abstract

The invention relates to the field of hydraulic pressure and the field of automatic electric control, and in particular to a control system of a vehicle-mounted hydraulic support leg and a control method. The control system comprises a support leg oil cylinder; the control system comprises a hydraulic pump, a motor, a controller and a sensor; the hydraulic pump is connected with the controller andthe motor; the controller provides driving energy through an energy storage power supply; an oil inlet of the hydraulic pump is connected with a hydraulic oil tank capable of providing oil; an oil outlet of the hydraulic pump is respectively connected with a one-way valve and a safety valve; the safety valve is connected with the hydraulic oil tank through a hydraulic oil pipe; the one-way valveis connected with a reversing valve; an oil access port of the support leg oil cylinder is connected with the reversing valve through a balance valve mechanism; and the controller is connected with the sensor. Compared with the prior art, continuous and efficient current output is provided; through a control policy of reducing the rotating speed, reliability and safety are improved, and the automatic control capacity is improved; and through high cooperation of the sensors, multifunctional protecting policies are achieved, and the work under various working conditions is realized.

Description

technical field [0001] The invention relates to the field of hydraulic pressure and the field of automatic electric control control, in particular to a control system and a control method for vehicle-mounted hydraulic outriggers. Background technique [0002] At present, the vehicle-mounted hydraulic support control system is mainly divided into manual and linkage operation control and relatively intelligent leveling control technology, all of which can meet the requirements of the conventional working conditions of the vehicle-mounted hydraulic support system, but they all ignore the requirements of vehicle-mounted safety performance and the requirements of the driver or operator. Corresponding security strategy control technology after personnel misoperation; In terms of vehicle safety requirements, only the flat road surface is mainly considered to achieve support, but when a certain slope or rollover angle is not considered, the vehicle hydraulic support system is often u...

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Problems solved by technology

[0002] At present, the vehicle-mounted hydraulic support control system is mainly divided into manual and linkage operation control and relatively intelligent leveling control technology, all of which can meet the requirements of the conventional working conditions of the vehicle-mounted hydraulic support system, but they all ignore the requirements of vehicle-mounted safety performance and the requirements of the driver or operator. Corresponding security strategy control technology after personnel misoperation; In terms of vehicle safety requirements, only the flat road surface is mainly considered to achieve support, but when a certain slope or rollover angle is not considered, it is often impossible to achieve the leveling of the vehicle hydraulic support system, resulting in vehicle failure. During the support process, there will be rollover and damage to the hydraulic pump system beyond the peak working condition; secondly, it is inevitable that the driver or operator will have the habit of misoperation and random operation, so it is necessary to consider multiple control strategies and carry out mutual restraint to achieve System security and operation

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