Control method of mixing drum and mixing truck

A control method and mixing drum technology, which is applied in the direction of control devices, cement mixing devices, chemical instruments and methods, etc., can solve the problems of short life of the mixing drum, changes in the drum speed of the mixing drum, and a large range of engine speed changes, so as to prevent the rotation speed Frequent changes, improved service life, and guaranteed rheological properties

Active Publication Date: 2022-02-08
GUANGXI LIUGONG MASCH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the speed of the mixing drum actually used in concrete mixer trucks in the domestic market varies proportionally with the engine speed. The range of engine speed changes is large and frequent, resulting in frequent changes in the speed of the mixing drum, resulting in poor concrete homogeneity and short life of the mixing drum. And other issues

Method used

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  • Control method of mixing drum and mixing truck

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Embodiment Construction

[0020] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals designate the same or similar components or components having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0021] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or a mechanical connection. A connection can also be an electrical connection, a direct connection, or an indirect connection through an intermediary, or an internal connection between two elements or an interaction relationship between two elements. ...

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Abstract

The invention belongs to the technical field of concrete mixing, and discloses a control method of a mixing drum and a mixing truck. According to the control method of the mixing drum, when the mixing drum mixes concrete at an initial gear, the torque value of the mixing drum is detected every preset number of turns, and the difference value between the detected later detection value and the detected previous detection value is compared with a preset torque range; if the difference value between the later detection value and the previous detection value is within the preset torque range, the initial gear of the mixing drum is not adjusted, and if the difference value between the later detection value and the previous detection value is not within the preset torque range, the initial gear is adaptively adjusted. According to the control method of the mixing drum, the difference value between the later detection value and the previous detection value is compared with the preset torque range, and the initial gear is correspondingly adjusted by analyzing the comparison result, so that the rotating speed of the mixing drum can be adjusted according to the change of the torque value, and the rheological property of concrete is effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of concrete mixing, in particular to a control method of a mixing drum and a mixing truck. Background technique [0002] Concrete mixer truck is a transportation tool for transporting concrete from the concrete mixing station to the construction site. During the transportation process, the flow field of the concrete in the mixing drum changes very complicated. The fresh concrete has time-varying and thixotropic properties, that is, the rheological properties are changing all the time. During the transportation process, the mixer truck keeps rotating so that the concrete will not segregate. At present, the speed of the mixing drum actually used in concrete mixer trucks in the domestic market varies proportionally with the engine speed. The range of engine speed changes is large and frequent, resulting in frequent changes in the speed of the mixing drum, resulting in poor concrete homogeneity and short life of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28C5/42B28C5/00B28C7/02
CPCB28C5/42B28C5/422B28C5/4203B28C5/006B28C7/02
Inventor 黄虹溥卢书湘黄羽马荣李沛霖
Owner GUANGXI LIUGONG MASCH CO LTD
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