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Metering method and system for real time discharge volume of piston type concrete pump

A concrete pump and displacement measurement technology, which is applied in pump testing, liquid variable capacity machinery, machine/engine, etc., can solve the problems of time-consuming, frequent measurement and unrealistic, etc., and achieve the effect of improving measurement accuracy

Inactive Publication Date: 2007-06-27
ZHEJIANG UNIV
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  • Application Information

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Problems solved by technology

Not only time-consuming, frequent measurement is not realistic

Method used

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  • Metering method and system for real time discharge volume of piston type concrete pump
  • Metering method and system for real time discharge volume of piston type concrete pump
  • Metering method and system for real time discharge volume of piston type concrete pump

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Embodiment Construction

[0029] As shown in Fig. 1 and Fig. 2, the present invention comprises two drawstring type linear displacement sensors 1,2, two switch sensors 3,4, two concrete cylinder pressure sensors 5,6, input device 7, output device 8 and Microprocessor 25; two stay-rope linear displacement sensors 1,2 are mounted on the fixed support 26 of the piston concrete pump water tank, and the stay rope ends of the two displacement sensors 1 and 2 are respectively connected to the respective pulleys 9 and 10 Concrete pump piston rods 17, 18 and concrete cylinder pistons 23, 24 on the connecting flanges 21, 22; two concrete cylinder pressure sensors 5, 6 are respectively installed on the pistons 23, 24 at one end of the rodless cavity of the respective concrete cylinders 13, 14 On; two switch sensors 3,4 for determining the start time and end time of each pumping stroke are installed on the fixed bracket 26; six sensors tap the microprocessor 25, and the microprocessor 25 is also used for The input...

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Abstract

A method and system for metering the real-time displacement volume of a piston-type concrete pump is disclosed. Said method includes such steps as measuring the piston displace of concrete cylinder and the pressure of concrete cylinder, analyzing the measured piston displace signal as reference and the pressure signal, calculating the real-time pumping coefficient, finding out the modification to calculated result according to the information contained in the pressure signal of hydraulic system, and metering the real-time displacement of concrete pump.

Description

technical field [0001] The invention relates to a flow measurement method and system, in particular to a real-time displacement measurement method and system of a piston concrete pump. Background technique [0002] The mixing and pumping of concrete are usually carried out in two places far apart, and the mixing, transportation and construction parties are often three different units. In the construction machinery leasing industry, the party at a disadvantage due to information asymmetry—the construction user—puts forward an urgent need for a displacement metering system (mainly the displacement metering system with the pump truck) to make up for this deficiency. There is also a demand for displacement metering systems in the monitoring of pump (truck) operation status, construction management and construction quality, and evaluation of pump truck quality. A typical example is: when pouring the foundation with cement slurry (or lime slurry) or driving piles with deep mixing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B51/00
Inventor 李伟刘会勇顾大强
Owner ZHEJIANG UNIV
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