A pumping mechanism, pumping control method and concrete pumping equipment

Abstract

The present invention proposes a pumping mechanism and its control method. The pumping mechanism includes a first conveying cylinder, a second conveying cylinder, a distributing valve and a valve core swingably arranged in the distributing valve. The distributing valve and the One end of the first delivery cylinder communicates with the second delivery cylinder, and the valve core communicates with the feed port of the distribution valve. The valve core includes a first station, a second station and a third station. In the first station, the first conveying cylinder communicates with the feed port through the valve core, and the second conveying cylinder communicates with the discharge port of the distribution valve; at the second station, the first conveying cylinder Cylinder and the second conveying cylinder are connected with the discharge port; at the third station, the first conveying cylinder is connected with the discharge port of the distribution valve, and the second conveying cylinder communicates with the discharge port through the valve core. The feed port is connected. With the pumping mechanism of this structure, the pumping efficiency can be effectively improved, and the pumping continuity is better. In addition, the invention also proposes a concrete pumping equipment.

Description

technical field [0001] The invention relates to the field of concrete pumping, in particular to a pumping mechanism, a control method and concrete pumping equipment. Background technique [0002] In recent years, with the continuous and rapid development of my country's economy, the demand for construction machinery is also increasing. At present, my country has become the world's largest producer and seller of construction machinery. Products produced in my country, such as concrete pump trucks and other pumps Sending equipment, with its excellent performance, has long been famous at home and abroad. [0003] For concrete pumping equipment, no matter it is a concrete pump truck or a towed concrete pump, there is a common problem at present that is the continuity of pumping, that is, during the process of conveying materials, the reversing of the distribution valve will cause a flow interruption, resulting in a The discharge of the material port is sometimes large and someti...

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Problems solved by technology

[0005] The distribution valve with the above structure is more suitable for the pumping of coarse aggregate. It has good material suction performance, is easy to clean, can bear a large load, and can complete the high-pressure pumping of concrete, but it is basically not suitable for the continuity of pumping. no help

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