Piston motion speed matching method for improving concrete pumping material suction performance

A technology of piston movement and concrete pump, applied in chemical instruments and methods, pumps, pump control, etc., can solve problems such as reducing the performance of concrete suction

Active Publication Date: 2021-07-30
XIANGTAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A vacuum zone occurs between the concrete and the piston, reducing the concrete's suction properties

Method used

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  • Piston motion speed matching method for improving concrete pumping material suction performance
  • Piston motion speed matching method for improving concrete pumping material suction performance
  • Piston motion speed matching method for improving concrete pumping material suction performance

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Embodiment Construction

[0027] The invention is further described below with reference to the specific embodiments.

[0028] A method for performing speed matching method for concrete pumping suction properties, detailed steps are as follows:

[0029] (1) Provide a concrete mixture suction system;

[0030] (2) When the concrete is added to the mixture, the stirring means is activated. When the concrete is added to the mixture to the hopper, the initial movement speed V of the suction cylinder piston is set. 0 = 1M / s, let the piston start moving, pumping begins;

[0031] (3) Torque sensor detects the average torque T of the stirring blade at the current rotational speed at a certain period of time 0 , And record T in the data storage unit 0 Numerical;

[0032] More specifically, the average torque T of the piston single-absorbing time 2.5S under the stirring blade rotational speed 25R / min detected by the torque sensor 0 = 355N · m.

[0033] (4) Repeat step (3), the average torque T in the i-th cycle u...

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Abstract

The invention provides a piston motion speed matching method for improving concrete pumping material suction performance. The piston motion speed matching method mainly comprises the steps that (1) the rotating speed of stirring blades in the concrete material suction process is given, the average torque T0 of the stirring blades at the rotating speed is measured through a torque sensor, then the optimal speed of piston motion is calculated and corrected, and the piston motion speed is adjusted through a feedback adjusting module; and (2) the piston material suction motion speed is divided into three stages, namely the piston accelerated motion stage, the piston uniform motion stage and the piston decelerated motion stage. When the concrete fluidity is good, the motion speed of a piston can be increased, and the material suction frequency of the piston in unit time is increased while the material suction performance is guaranteed; and when the concrete fluidity is low, the motion speed of the piston can be decreased, the material suction amount is increased, the reversing frequency of an S pipe is decreased, abrasion of eye rings and other quick-wear parts is reduced, and energy consumption is reduced.

Description

Technical field [0001] The present invention provides a technical field of concrete pumping suction property, and more particularly to a piston moving speed matching method for concrete pumping suction property. Background technique [0002] With the rapid development of my country and the sustainable development of domestic infrastructure construction, the soaring of domestic commodity concrete industry has promoted the rapid development of construction machinery and related concrete transport machinery, providing a larger market for concrete pump trucks. Space, concrete pumping technology has been widely used. [0003] During the transportation process, due to the time and transportation of the road, the fluidity caused by the rectification of the pumping site will be affected, so after the concrete is unloaded to the pumping hopper, if the concrete is in the piston cylinder When the liquidity is too poor, when the motion speed of the piston is too large, the speed of the concr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/20F04B15/02B28C5/16B28C7/02
CPCF04B49/20F04B15/02B28C5/16B28C7/026
Inventor 曹国栋谭韬姜胜强谭援强余泉旭童政钢
Owner XIANGTAN UNIV
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