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

Abstract

A pumping stroke control method for a viscous material double-cylinder pump includes the following steps: step 1 according to material condition parameters of predetermined type of to-be-conveyed viscous material, determining a target pumping stroke of the viscous material double-cylinder pump corresponding to the material condition parameters; and step 2 adjusting the current actual pumping stroke (L) of the viscous material double-cylinder pump to be the target pumping stroke by adjusting the volume of hydraulic oil contained in a communication cavity (5) of viscous material double-cylinder pump. In addition, the invention further provides pumping equipment for viscous material. The pumping equipment for viscous material is capable of achieving stepless regulation of pumping stroke of the viscous material double-cylinder pump, and enables a viscous material conveying cylinder to effectively avoid shortage of absorbed material, thereby improving pumping material absorbing efficiency and saving energy. The pumping equipment for viscous material is simple in structure, convenient to operate, and capable of remarkably prolonging service life of a conveying piston due to the fact that invalid stroke of the conveying piston is effectively reduced.

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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