Concrete pumping equipment and control method and device thereof
A technology of concrete pumps and control methods, which is applied in pump control, mechanical equipment, liquid variable capacity machinery, etc., can solve problems such as improper control of concrete pumping equipment, and achieve proper control effects
Active Publication Date: 2013-08-14
ZOOMLION HEAVY IND CO LTD
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- Description
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Problems solved by technology
[0009] The main purpose of the present invention is to provide a concrete pumping equipment and its control method and device to solve the problem of improper control of the concrete pumping equipment when starting pumping
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[0031] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0032] Before introducing the specific implementation of the present invention, the high and low pressure conversion principle of the concrete pumping equipment will be introduced first.
[0033] figure 1 It is a schematic diagram of high and low pressure conversion of concrete pumping equipment according to related technologies, such as figure 1As shown, when the first electromagnet DT1 is energized and the first valve 10 is in the left position, the first cartridge valve 7, the second cartridge valve 8 and the third cartridge valve 9 are locked with pressure oil in the control chamber, and the second The four cartridge valves 4, the fifth cartridge valve 5 and the sixth cartridge valve 6 co...
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The invention discloses concrete pumping equipment and a control method and a control device thereof. The control method for the concrete pumping equipment comprises the following steps of: detecting a preset pumping state of a first pumping of a concrete pump when the first pumping of the concrete pump is started; detecting whether a working parameter of a second pumping is greater than a presetworking parameter value and / or detecting whether supply delay time of the concrete pump is greater than a preset supply delay time value or not when the preset pumping state of the first pumping is alow-pressure pumping, wherein the second pumping is previous to the first pumping; controlling the concrete pump to convert low-pressure pumping into high-pressure pumping when the working parameter is greater than the preset working parameter value and / or the supply delay time of the concrete pump is greater than the preset supply delay time value; and controlling the concrete pump to convert the high-pressure pumping into the low-pressure pumping when the concrete pump works for first preset time according to the high-pressure pumping. By the control method, the concrete pump can be controlled appropriately when the pumping is started.
Description
technical field [0001] The invention relates to the field of concrete pumping equipment, in particular to a concrete pumping equipment and a control method and device thereof. Background technique [0002] In the process of engineering construction, a large amount of concrete needs to be transported and poured. Traditional construction methods use trolleys, tower cranes, etc., but these methods obviously do not meet the requirements of modern engineering construction. The concrete pumping construction method has the advantages of high efficiency, good quality, and low labor intensity, and is more and more widely used in modern engineering construction. [0003] Concrete pumping equipment generally includes the following parts: pumping hydraulic system: drive the pumping cylinder, control the direction and speed of the pumping cylinder; distribution hydraulic system: drive the distribution mechanism, control the reversing of the distribution mechanism; mixing hydraulic system...
Claims
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IPC IPC(8): F04B49/00
Inventor 李沛林
Owner ZOOMLION HEAVY IND CO LTD