Control system and method for concrete machine

Abstract

The invention discloses a control system and a control method for a concrete machine, and the system and the method relate to the technical field of mechanical equipment. According to the control system, the input end of a main oil pump is communicated with an oil tank, and the output end of the main oil pump is communicated with the input end of a first reversing valve; the output end of the first reversing valve is selectively communicated with a pumping system or a jib hydraulic system; the input end of a jib pump is communicated with the oil tank, and the output end of the jib pump is communicated with the input end of a second reversing valve; and the output end of the second reversing valve is selectively communicated with the jib hydraulic system or the oil tank. According to the control system and the control method for the concrete machine, because the reversing valves are arranged on an output pipeline of the main oil pump, the main oil pump is enabled to supply oil to the jib hydraulic system solely or together with the jib pump when the jib hydraulic system acts solely, so that the characteristic of large displacement of the main oil pump is fully utilized, the driving rotating speed of a driving device can be significantly reduced, and the energy consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of mechanical equipment, in particular to a control system and method for concrete machinery. Background technique [0002] In the prior art, the pump set of a concrete machine with a boom (such as a concrete pump truck) usually includes a main oil pump and a boom pump. Among them, the main oil pump supplies oil to the pumping system and drives the pumping system to output concrete; the boom pump supplies oil to the boom system and drives the boom and outriggers to move. The pumping system and the boom system generally work independently without interfering with each other. [0003] In the actual construction process, due to the small displacement of the boom pump itself, the engine speed is generally set higher during the movement of the boom to ensure sufficient flow output to meet the movement speed of the boom. However, for the engine, the corresponding fuel consumption under high-speed conditions is r...

AI Technical Summary

Problems solved by technology

However, for the engine, the corresponding fuel consumption under high-speed conditions is relatively high, which is not conducive to energy saving; at the same time, the limitation of the displacement of the boom pump itself leads to a relatively limited output flow of the boom pump, which will make the multi-section boom During linkage (simultaneous action), the action is slow, which affects the working efficiency

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