The typical feature of steel structure enterprises is that the objects in the workshop are large and the ground is relatively messy. The original wire-controlled method of the crane (travelling crane), when lifting objects, the operator must follow the crane to run around. It is inevitable that the ground is stumbling due to messy objects. Workers are standing directly under or below the suspended objects, which is not safe and is common for them to be touched or even be smashed. And when workers move an object from one place to another place, it takes relatively more time, and the cable is more likely to be worn by the suspended object, and the handle switch is easy to bump, which leads to frequent replacement of cables and switch handles. This kind of replacement is one of frequent troubles, and the other is that the cost will increase from time to time.
Compared with the wire control method, the use of industrial wireless remote controller is much more convenient and safer. Wireless control workers can stand at a certain distance (the wireless control distance is usually 100 meters) to lift objects; One is to stay away from the lifting object, which is safe and convenient, and the other is to directly lift the travelling crane by remote control without running around with the crane. Because there is no time delay due to ground stumbling, work efficiency is improved to a considerable extent, and the third is to save the cost of frequent replacement of cables and handle switches.
The double-girder travelling crane can save the driver input through remote control modification, and simplify the complicated control method, that is, move the travelling crane cab that requires professional driving to the button of the crane remote controller transmitter of the ordinary worker. It can be operated by any ordinary worker without professional training. After the remote control modification, the operation method is exactly the same as that of the ordinary single-girder travelling crane remote control modification, as long as the worker knows the instruction fonts of several movements up, down, east, and west. This is the inevitable trend of the development of driving travelling cranes. It saves manpower and material cost and is convenient and safe.