Method and device for controlling discharge rate of mixer truck and mixer truck

A technology of unloading speed and control method, applied in the direction of control device, unloading device, cement mixing device, etc., can solve the problems of waste, difficult control of unloading speed, boom vibration, etc., to reduce overflow or air suction. Effect
CN102229200BInactive Publication Date: 2012-12-05SANY HEAVY IND CO LTD (CN)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SANY HEAVY IND CO LTD (CN)
Publication Date
2012-12-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

Disclosed are a method and a device for controlling the discharge rate of a mixer truck and the mixer truck, comprising the control device, wherein the control method comprises the following steps: a) acquiring sound signals by detecting the working sound emitted by pumping equipment as materials are being pumped thereby; b) processing, analyzing by sampling, and extracting features of sound signals obtained; c) calculating the material pumping rate of the pumping equipment during material pumping according to characteristics of the information obtained from step b); d) controlling the discharge rate of the mixer truck using the pumping rate obtained according to a pre-stored control strategy. The control device provided is used to realize the control method, and is easy to install, has low costs, and greatly facilitates function upgrading and retrofitting of existing mixer trucks. The mixer truck comprising the control device, when operated with the pumping equipment, can adjust its own rotation rate and discharge rate in real time, cooperating with the pumping equipment much better and reducing the occurrence of overflow or empty suction by a hopper of the pumping equipment during operation.
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Description

technical field

[0001] The invention relates to a control method applied in the field of engineering machinery, in particular to a method for controlling the unloading speed of a mixer truck. In addition, the invention also relates to a control device for the unloading speed of a mixer truck, and a mixer truck with the control device. Background technique

[0002] figure 1 Scene for concrete machinery construction. The machine on the left is a concrete transport mixer truck, and the machine on the right is a concrete pump truck. The concrete transport mixer truck transports the commercial concrete from the concrete mixing station to the construction site, and then the mixer truck pours the concrete into the hopper of the concrete pump truck, and the concrete pump truck then pumps the concrete material in the hopper to the construction site. The mixing drum 21 of the mixer truck is used for loading concrete materials. When unloading, the concrete enters the hopper 23 of th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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