Concrete pump truck variable pump control method and concrete pump truck

Abstract

The invention discloses a method for controlling a variable pump of a novel concrete pump truck. The method comprises the following steps: 1, starting a power system so as to enable a distribution system and a stirring system to begin to work, and enabling a controller to respectively and automatically detect whether a pumping system and a boom system work or not; 2, when both of the pumping system and the boom system are detected to work, adjusting the displacement of the variable pump of the pumping system by using the controller so as to enable the variable pump to be adjusted to run in low power and small displacement; 3, when the boom system is detected not to work, adjusting the displacement of the variable pump of the pumping system by using the controller so as to enable the variable pump to be adjusted to run in high power and large displacement. According to the method provided by the invention, the controller automatically detects whether the pumping system and the boom system work or not; when the boom system does not work, the controller adjusts the displacement of the pumping system so as to realize the high power and large displacement output of the pumping system; therefore, the power of the boom system, which does not run, is distributed to the variable pump of the pumping system for use, and all power of the power system is utilized to the utmost extent.

Description

technical field [0001] The invention belongs to the technical field of concrete, and in particular relates to a variable pump control method of a concrete pump truck and a concrete pump truck. Background technique [0002] In order to make the construction machinery work smoothly, sometimes it is necessary to make the variable pump of the construction machinery run at constant power, which is usually achieved by setting constant power control for the variable pump. For example, in a concrete boom pump truck, in order to ensure continuous and stable concrete delivery and achieve a relatively maximum delivery volume of concrete, it is usually necessary to adapt the working power of the variable pump to the power of the power unit that drives the variable pump, and make the variable pump Operate with the appropriate power and constant power. In the existing concrete boom pump truck, it is usually realized by installing a constant power valve block on the variable pump. The co...

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Problems solved by technology

As a result, power is wasted when the boom system is not in use, resulting in no energy saving

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