The Study Of Belt Conveyer's Controlling System

Belt conveyer, which is used mainly to transport the lumpish, granular, or loose materials and pieces of goods, is a kind of continuous conveyance equipment , so it is applied widely in the industry production. The aim of this system is to solve the overstocking material s' problem of belt "conveyer in the smashing workshop of the Pangang Group. It is a kind of interchangeable system with multiple functions in intellectual diagnosing and controlling the belt conveyer' s breakdown.This system is composed of the signal testing unit (including leaning wheel unit and sensor unit), the signal handling and analyzing unit (SZO type digital analyzing instrument with multiple function in intellectual diagnosing and controlling) and the digital display, alarming and controlling unit (including DSB-113 type digitally early warning and alarming unit with multiple function and controlling point). The signal testing unit examines directly the production parameter - the belt' s velocity and sends out electrical signal similar to sine wave. The signal handling and analyzing unit disposes of the sensor' s output signal by amplifying, plasticisering A/D transforming and measuring and displays it digitally. After the alarming and controlling unit compares the testing signal with the standard one and analyses, it will show the normal production situation or alarm at the abnormal state and control the related equipments if it is necessary.The paper has elaborated the working principle and applied circuit of this system' s every unit, and introduced the component part of this system and the operating situation in the laboratory or on the spot.