Pumping mechanism, pumping control method and concrete pumping equipment

Abstract

The invention provides a pumping mechanism and a control method thereof. The pumping mechanism comprises a first conveying cylinder, a second conveying cylinder, a distribution valve and a spool which is arranged in the distribution valve in a swinging manner. The distribution valve is communicated with one end of the first conveying cylinder and one end of the second conveying cylinder; the spool is communicated with a feed inlet of the distribution valve and comprises a first work station, a second station and a third station. In the first station, the first conveying cylinder is communicated with the feed inlet, and the second conveying cylinder is communicated with a discharge outlet of the distribution valve. In the second station, the first conveying cylinder and the second conveying cylinder are both communicated with a discharge outlet. In the third cylinder, the first conveying cylinder is communicated with the discharge outlet of the distribution valve, and the second conveying cylinder is communicated with the feed inlet through the spool. The pumping efficiency of the pumping mechanism can be increased effectively and the pumping continuity can be improved. The invention further provides 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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