Rubber belt conveyor and method and device for controlling tensioning system thereof

Abstract

The invention discloses a rubber belt conveyor and a method and a device for controlling a tensioning system thereof. The method for controlling the tensioning system of the rubber belt conveyor comprises the following steps executed through the tensioning system of the rubber belt conveyor: acquiring a working state parameter of the rubber belt conveyor by online monitoring and dynamic analysis; and regulating the tension according to the working state parameter, and further regulating the tension of a rubber belt of the rubber belt conveyor. By the method and the device, the tension control of the rubber belt of the rubber belt conveyor is more reasonable, and the service lives of a driver, a drum, a support roller, the rubber belt and the like of the whole rubber belt conveyor system are prolonged.

Description

Control method and device for belt conveyor and its tensioning system technical field The invention relates to the field of belt conveyors, in particular to a control method and device for a belt conveyor and its tensioning system. Background technique In the prior art, the tension control of the belt conveyor tensioning device is usually based on static calculation results, according to different international standards, such as China's GB / T17119-1997, American CEMA, German DIN22101, and international ISO5048, etc. , the calculation principle is basically the same, and the following formula is mainly used: 1. The required circular driving force on the drive roller FU=CfLg[qRO+qRU+(2qB+qG)cosδ]+qGHg+Fs Among them, Fu is the circumferential driving force; C is the coefficient; f is the friction coefficient; L is the total length of the conveyor; g is the acceleration of gravity; Partial mass; qB is the mass of the conveyor belt per meter of the load or return branch; ...

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Problems solved by technology

2. The required operating power of the conveyor

It can be seen from the above formula that even according to the static calculation, when the load (or length) of the belt conveyor changes, the required tension value is also different, so the tension calculated only according to the rated load and length is in the load (or length) It is unreasonable to maintain this tension while changing

In view of the poor dynamic tensioning effect of the tensioning device designed in the above conventional way, an automatic tensioning device for winches is also provided in the prior art

In the automatic tensioning device of the winch, considering that the tension force is only dynamically adjusted at each stage based on the static characteristics, the entire tensioning process is divided into four stages: starting, running, braking and parking. A limited range of fixed tension is set in each stage. Only when the tension generated by the belt exceeds the limited range, the tension system will be adjusted, but it cannot be dynamically adjusted in real time for the change of belt tension, so it is unreasonable and sometimes redundant. If the amount is too large, sometimes the margin is insufficient, which will lead to over-tensioning of the conveyor belt, stress fatigue or breakage, high stress on the rotating parts, excessive power consumption, etc., which will eventually cause huge waste and safety hazards. True tension effect and purpose

Aiming at the problem that the belt tension control of the belt conveyor in the prior art is not reasonable enough, resulting in a relatively short life of the belt, no effective solution has been proposed so far

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