Pumping stroke control method for viscous material double-cylinder pump and pumping equipment for viscous material

Abstract

A pump stroke control method for a twin-cylinder pump for viscous materials, comprising the following steps: first, determining, according to predetermined condition parameters for a viscous material to be conveyed, a target pump stroke for a twin-cylinder pump for viscous materials corresponding to said parameters; second, by means of adjusting the volume of hydraulic oil in a through-cavity (5 ) of the twin-cylinder pump for viscous materials, adjusting the actual pump stroke (L) of said pump to said target pump stroke. Also provided is a pumping device for viscous materials. The present pump stroke control method is able effectively to implement stepless adjustment of the pump stroke of twin-cylinder pumps for viscous materials, thus allowing the materials-conveying cylinder to avoid a situation of insufficient materials uptake, and thereby increasing pump uptake efficiency while saving energy. The pumping device is structurally simple and easy to operate, and, by reducing the number of invalid strokes of the conveying piston, extends the service life of same.

Description

technical field [0001] The invention relates to a method for controlling the pumping of viscous materials, in particular to a method for controlling the pumping stroke of a double-cylinder pump for viscous materials. In addition, the present invention also relates to a viscous material pumping device applying the pumping stroke control method. Background technique [0002] Viscous materials such as mud and concrete are commonly used building materials in engineering and construction fields. Viscous material double-cylinder pumps such as concrete pumps (also known as "concrete delivery pumps" or "concrete pumping devices") are a kind of engineering The construction machinery pumping device widely used in construction, the main structure of this kind of viscous material double cylinder pump is similar to the commonly used concrete pump, which mainly uses the pressure to continuously transport the viscous material along the pipeline, and generally can be driven by an electric m...

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Problems solved by technology

However, this control method is only to optimize the overall working performance of the concrete pump, and the control is complicated, and it is not targeted at the problem of insufficient suction of the concrete delivery cylinder due to different concrete material conditions, which leads to a decrease in pumping efficiency

[0007] It can be seen from the above description that the main disadvantage of the concrete pump in the prior art is that when the concrete pump pumps fluid concrete with different material parameters, under some working conditions, the concrete delivery cylinder may not absorb enough material, but the main Oil cylinders and concrete delivery cylinders still operate according to one or two fixed strokes, resulting in low concrete pumping efficiency and large energy waste. Both are in the working state with reduced pumping efficiency

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