Lifting balance monitoring control system for heavy-duty dump trucks and monitoring control method

Abstract

The invention relates to the technical field of heavy-duty dump trucks, and in particular to a lifting balance monitoring control system for the heavy-duty dump trucks and a monitoring control method.The system comprises a PLC (Programmable Logic Controller) control correction system and a hydraulic system, wherein the PLC control correction system comprises a displayer and a PLC controller and also comprises a tilting angle sensor, a lifting angle sensor and a displacement sensor which are connected with an IO (Input Output) port of the PLC controller; the hydraulic system comprises a frontdirect-pushing hydraulic cylinder, a correction hydraulic cylinder, a hydraulic oil tank and a hydraulic pump; an air-controlled distribution valve, a medium-stop switching electromagnetic reversing valve, a descending switching electromagnetic reversing valve, a lifting control valve and an electromagnetic multi-way reversing valve are arranged on the pipelines for connecting the hydraulic oil tank with the front direct-pushing hydraulic cylinder and the correction hydraulic cylinder; and the PLC controller is connected with the air-controlled distribution valve, the medium-stop switching electromagnetic reversing valve, the descending switching electromagnetic reversing valve, the electromagnetic multi-way reversing valve and the lifting control valve to control the air-controlled distribution valve, the medium-stop switching electromagnetic reversing valve, the descending switching electromagnetic reversing valve, the electromagnetic multi-way reversing valve and the lifting controlvalve. The system has the beneficial effects that the tilting angle of a heavy-duty dump truck is always kept within an alarm angle range, thereby avoiding the occurrence of rollover accidents.

Description

technical field [0001] The invention relates to the technical field of heavy-duty dump trucks, in particular to a lifting balance monitoring and control system and a monitoring and control method for heavy-duty dump trucks. Background technique [0002] With the rapid development of my country's economic construction, the popularization of heavy-duty dump trucks and the continuous progress of automobile technology, heavy-duty dump trucks have penetrated into various fields of national economic construction, and have become an important transportation in my country's road transportation industry, construction industry, open-pit mining and other industries. For transportation equipment, the demand for various heavy-duty dump trucks, especially the front-top straight-top dump truck, is increasing, and the demand for the length of the dump truck body is also increasing. The heavy-duty dump truck with a container length of more than 8 meters Unloading trucks has become mainstream. ...

AI Technical Summary

Problems solved by technology

However, since the working environment of heavy-duty dump trucks is mostly construction sites, mountains, open-pit mining stockyards and other operating areas, the road surface is rough and uneven, which makes the unloading environment of heavy-duty dump trucks poor. At this time, due to the high center of gravity of the vehicle, the dump truck is prone to rollover accidents during the lifting process, and the lifting risk of the vehicle is relatively high. So how to monitor and control the lifting balance of the heavy-duty dump truck to effectively avoid heavy dump trucks? Rollover accidents during the lifting process of unloading trucks have become problems that professional technicians need to solve

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