Brake is an important part of gantry crane, which plays a controlling role in the working and stopping state of each mechanism.
The reliability of the brake is related to the whole crane.
In particular, the lifting mechanism of the brake, in an important working environment, it is necessary to use double brakes, in order to ensure that even if one brake failure, the other brake can still make the crane reliable work a cycle.
Brake is so important, we will look at some common brake failures and troubleshooting methods.
In the hoisting mechanism, we often hear about the phenomenon of "sliding hook" of gantry crane.
This phenomenon is the lifting brake out of the problem, the general problem may be the brake brake tile wear, then only need to replace a new set of brake tile.
It is also possible that the brake was not adjusted in place during the installation, requiring personnel to readjust the torque adjustment nut on the brake.
Another possibility is in the selection process, the brake is selected small, braking torque is insufficient, this time can only replace the brake.
Gantry crane brake lock can not open is a very common fault, the first check the brake coil is not burned.
If the coil burns out, the coil must be replaced and wired.
Secondly, check whether the brake friction disc because of frequent braking, resulting in high surface temperature of the friction disc and brake wheel adhesion together.
If this is the case, clean the brake wheel with gasoline and replace the friction disc. Also check that the movable hinge of the brake is not stuck. If it is, find a way to adjust and lubricate it.
If the gantry crane brake can smell a burning smell for a period of time, and this phenomenon often happens, it is likely that the brake tile and brake wheel can not fully open or gap is too small, the gap needs to be adjusted.
