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Brushing device and spraying head assembly of concrete spraying machine

A concrete sprayer and sprinkler technology, which is applied in shaft equipment, earthwork drilling, construction material processing, etc., can solve problems such as concrete rebound and concrete slump, and achieve the effect of improving spraying efficiency

Active Publication Date: 2012-05-09
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the influence of spraying distance, concrete aggregate ratio and other factors, if the above method of direct spraying concrete is used, it is very likely that the sprayed concrete will collapse due to aerodynamic interference before the concrete is completely solidified.
In addition, the sprayed concrete cannot be completely attached to the sprayed surface, which will inevitably cause the concrete to rebound

Method used

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  • Brushing device and spraying head assembly of concrete spraying machine
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  • Brushing device and spraying head assembly of concrete spraying machine

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Embodiment Construction

[0035] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0036] In the present invention, unless stated otherwise, the orientation words "up, down, left, and right" usually refer to the boom of the concrete sprayer, and the orientation words "front and rear" are usually It means that when the concrete sprayer is working, the one close to the spraying surface is the front, and the one away from the spraying surface is the rear.

[0037] The concrete sprayer brushing device of the present invention can be preferably applied to the spray head assembly of various wet concrete sprayers, but it is not limited to this scope of application. The concrete sprayer uses the brushing device to make the nozzle assembly perform bru...

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Abstract

The invention discloses a brushing device of a concrete spraying machine, comprising a first rotary driving piece (30) and a rotary piece (40), wherein one side of the rotary piece (40) is connected with the output end of the first rotary driving piece (30), and the end surface of the other side of the rotary piece (40) is provided with a plurality of eccentric installing positions; a connecting shaft (13) is selectively arranged on one eccentric installing position; and if the connecting shaft (13) is positioned at different eccentric installing positions, included angles between the axis of the connecting shaft (13) and the rotary axis of the rotary piece (40) are different. In addition, the invention also discloses a spraying head assembly of the concrete spraying machine provided with the brushing device. The brushing device and the spraying head assembly with the same can be adjusted to suitable brushing angles according to different spraying surfaces so as to spray concrete, so that the rebound rate of concrete and the caving of uncured concrete are reduced, and further the spraying efficiency of the concrete is improved.

Description

technical field [0001] The invention relates to the field of concrete construction, in particular to a brushing device of a concrete sprayer and a nozzle assembly of a concrete sprayer using the brushing device. Background technique [0002] Concrete spraying machine is a construction machinery equipment that uses compressed air to continuously transport concrete mixture and sprays it onto the spraying surface to form a supporting structure and strengthen and protect the surface of the building. At present, the commonly used concrete sprayers are dry concrete sprayer and wet concrete sprayer. Among them, the wet concrete spraying machine has been widely used because of its small concrete rebound, low dust content in the air, and low harm to the human body. [0003] The nozzle assembly of the existing wet concrete sprayer usually adjusts the position of the nozzle assembly according to the spray surface, and sprays the spray surface continuously after the position is determi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/04E04F21/08E21D11/10
Inventor 郭岗闫琼刘小明刘健宁
Owner ZOOMLION HEAVY IND CO LTD
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