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Real time discharging volume measuring method and device for concrete pump

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

Inactive Publication Date: 2008-07-16
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • 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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  • Real time discharging volume measuring method and device for concrete pump
  • Real time discharging volume measuring method and device for concrete pump
  • Real time discharging volume measuring method and device for concrete pump

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Embodiment Construction

[0030] Such as figure 1 , figure 2 , image 3 As shown, the present invention includes two drawstring type linear displacement sensors 1, 2, two switch sensors 3, 4, a hydraulic system pressure sensor 5, an input device 6, an output device 7 and a microprocessor 8. Two pull-rope linear displacement sensors 1, 2 are installed on the fixed bracket 26 of the piston concrete pump water tank, and the leading ends of the two displacement sensors 1, 2 are respectively connected to the concrete pump piston rods 17, 18 via fixed pulleys 9, 10 Connecting flanges 21, 22 with concrete cylinder pistons 23, 24; hydraulic system pressure sensor 5 is installed on the oil inlet oil circuit of pumping hydraulic system through threaded connection sleeve 25; used to determine the start time and end of each pumping stroke The two switch sensors 3 and 4 of the time are installed on the fixed bracket 26; 5 sensors tap the microprocessor 8, and the microprocessor 8 is also respectively connected w...

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Abstract

A method and system for measuring 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 device, in particular to a concrete pump real-time displacement measurement method and device. 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 method, bec...

Claims

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Application Information

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