Bridge crane basic questions and solutions to ensure your bridge crane work more efficiently, safely and durably. 15 common problems on bridge crane control, hoisting system, crane braking, installation and braking, etc., and suggested solutions are presented for you.
Question 1: Why does Dongqi Crane use PLC on bridge crane?
Answer: PLC is the abbreviation of programmable logic controller. Its basic structure are composed of power, CPU, memory, input/output interface circuit, function module and communication module. PLC can change the form of relay-contacts control, and can make it adjustable for electric motors' speed of every file, acceleration time and braking time according to practical conditions. PLC functions include calculating, controlling, programming, communicating, diagnosing, processing.
Because PLC has various advantages and can make heavy duty bridge overhead cranes more safety and convenient, Dongqi Enterprise apply PLC in bridge crane system. Its advantages are following.
Convenient use, simple program
Strong function, highly cost-effective
Complete hardware, convenient use for customers, strong adaptability
High reliability, strong anti-interference capability
Little work for system's design, installation and test
Little work for maintenance and convenient maintenance.
Question 2: What's the system of hoist bridge crane?
Answer: Electric hoist bridge crane mainly includes lifting mechanism, travelling mechanism (trolley travelling mechanism and bridge crane travelling mechanism) and rotating mechanism.
First is lifting mechanism, it refers to electric hoist. It is composed of driving device (electric motor), braking device (brake), transmission device (reducer) and fetching rotating dev