Pressure regulating method and system for concrete pumping apparatus, and concrete pumping apparatus

Abstract

Disclosed are a pressure regulating method and system for a concrete pumping device and a concrete pumping device, wherein the system comprises a constant pressure pump (1), a pressure sensor (2) for acquiring a pumping pressure value and the change of rate in the pumping pressure, a pressure regulating valve (4) connected to the constant pressure pump (1) and for regulating the distributing pressure output by the constant pressure pump (1), a controller (3) connected between the pressure sensor (2) and the pressure regulating valve (4) and for receiving the pumping pressure value and the changing rate in the pumping pressure obtained by the pressure sensor (2) and for controlling the degree of opening of the pressure regulating valve (4) according to the pumping pressure value and the changing rate in the pumping pressure, and an oscillating oil cylinder (6) connected to the constant pressure pump (1) and for obtaining the distributing pressure output by the constant pressure pump (1) and a pressurized oil from an energy reservoir (5) so as to obtain a reversing pressure for urging a distributing valve. The present solution can achieve, by means of intelligently regulating the distributing pressure output by the constant pressure pump, reduced longitudinal impact on the whole vehicle during a distribution reversing, so as to prolong the service life of hardware devices and save energy.

Description

technical field [0001] The invention relates to the field of concrete machinery, in particular to a pressure regulating method and system for concrete pumping equipment and the concrete pumping equipment. Background technique [0002] With the rapid development of my country's infrastructure, the development and growth of the concrete machinery industry in various places is also unprecedented. How to reduce the vibration during the pumping process, and how to improve the service life of the device and the pumping efficiency are directly related to the economic benefits of the pump truck users. [0003] At present, the existing technology often uses the maximum fixed distribution pressure value to control the distribution reversing. At this time, the distribution reversing will produce a longitudinal impact on the vehicle, and the impact will be kept at the maximum, which increases the mechanical parts of the system. Wear and tear, resulting in a certain waste of energy. ...

AI Technical Summary

Problems solved by technology

[0008] The main purpose of the present invention is to provide a pressure regulating method and system for concrete pumping equipment and concrete pumping equipment to solve the problem of concrete pumping due to the use of fixed distribution pressure for control during the working process of the pumping machinery in the above related technologies. The problem of large loss of equipment hardware components and failure to meet energy saving requirements

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