Overhead working vehicle getting on and off automatic interlocking control system and control method thereof

Abstract

The invention discloses an overhead working vehicle getting on and off automatic interlocking control system and a control method thereof. The system comprises a getting off landing leg control systemand a getting on arm rest control system. The getting off landing leg control system comprises a hydraulic pump, a getting off valve bank and a landing leg oil cylinder. The getting on arm rest control system comprises a getting on valve bank, a variable-amplitude oil cylinder, a telescopic oil cylinder an a rotation mechanism motor. The getting off valve bank comprises a getting on and off oil way switching valve, a landing leg oil cylinder telescopic control valve and multiple groups of landing leg oil cylinder selection valves. The getting on valve bank comprises a load-sensitive port LS electronic control unloading valve, a variable-amplitude oil cylinder control valve, a telescopic oil cylinder control valve and an arm rest rotation control valve. Overhead working vehicle getting onand off automatic interlocking control can be achieved, the situation that operators cannot fall to the ground due to movement limiting in a platform is avoided, and the stability of an overhead working vehicle and the use safety of the overhead working staff are improved.

Description

technical field [0001] The invention relates to the technical field of aerial work vehicles, in particular to an automatic interlocking control system for getting on and off the aerial work vehicle and a control method thereof. Background technique [0002] The aerial work vehicle is generally divided into the operation of getting off the car and the operation of getting on the car. The operation of getting off the car refers to the telescopic operation of the outriggers. Aerial work vehicles need to carry people to work at high altitudes, so the stability of the vehicle is highly required to avoid safety accidents caused by tipping. [0003] The stability of the bodywork is ensured by getting off the hydraulic outriggers. If you directly operate the movements of the upper arm frame without extending the outriggers, it may cause the center of gravity of the vehicle to deviate, which may lead to dangerous accidents such as rollover; another situation is that when the outrigg...

AI Technical Summary

Problems solved by technology

The problem with this technical solution is: when the outriggers are not properly supported or soft legs occur, all actions of getting off / on the car are restricted; Therefore, if the outriggers are not stretched, the vehicle can only be locked to prevent the boom from moving, and the automatic interlock function of getting on and off the vehicle cannot be realized, which also has a large hidden danger; When getting off the car, it is also impossible to extend the outriggers to ensure the stability of the body, and the car is also in a restricted state and cannot be closed when getting on the car, which leads to long-term occupation of the on-site work road and the inability of the staff on the platform to fall back to the ground and other problems.

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