Amplitude Limiting System for Insulated Aerial Work Platforms

Abstract

The invention provides an amplitude constraint system of an insulating aerial work platform. The amplitude constraint system comprises the insulating aerial work platform. The insulating aerial work platform comprises a telescopic arm, an insulating folding arm and a telescopic supporting leg. The amplitude constraint system is structurally characterized by further comprising an amplitude-variable oil cylinder, a first pressure sensor, a balance valve, a reversing valve, a flow meter, a second pressure sensor and a controller. The amplitude-variable oil cylinder is installed between the telescopic arm and the insulating folding arm. An oil pressure cavity is formed in the amplitude-variable oil cylinder. The first pressure sensor is connected with the oil pressure cavity of the amplitude-variable oil cylinder and electrically connected with the controller through signals. The balance valve is arranged on the amplitude-variable oil cylinder. The reversing valve is connected with the balance valve. The flow meter is connected between the reversing valve and the balance valve in series and electrically connected with the controller through signals. The second pressure sensor is arranged on the telescopic supporting leg and electrically connected with the controller through signals. By means of the amplitude constraint system, the problem that a hybrid type insulating aerial work platform can not restrain amplitude is solved, and the safety of aerial work is improved.

Description

technical field [0001] The invention relates to the technical field of control of high-altitude work platforms, in particular to an amplitude limiting system of an insulating high-altitude work platform. Background technique [0002] With the development of economy and society, people's requirements for power supply continue to increase, and the demand for live work is increasing. Various insulated aerial work platforms have emerged and have been widely used. Insulated aerial work platforms usually adopt a hybrid boom form in order to improve operational performance and operational safety, that is, the lower part adopts a folding arm with an auxiliary insulating end, and the upper part adopts a telescopic arm with a main insulating end at the end. Because the lower folding arm has an insulating end, it is difficult to install electronic sensors on the upper telescopic arm to monitor the operating status of the boom in real time, and then realize the function of amplitude con...

AI Technical Summary

Problems solved by technology

Because the lower folding arm has an insulating end, it is difficult to install electronic sensors on the upper telescopic arm to monitor the operating status of the boom in real time, and then realize the function of amplitude control. Therefore, the current hybrid arm insulation aerial work platforms have no amplitude. Restriction function, which can only rely on manual control to limit the operation range, which has potential safety hazards

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