How to prevent common faults on the frequency controller of mining electric vehicles?
In order to ensure better heat dissipation of the mining motor vehicle inverter, each driver of the motor vehicle is required to park the motor car from the well below the shed under the industrial square after the coal or the gangue is discharged from the well. It is strictly forbidden to expose the motor vehicle to the sun. After that, you must brake the hand brake, return the master controller handle to the zero position, and remove the car key. At the same time, it is necessary to use the coal dust and dust of all parts of the electric blower motor car to blow clean, especially the heat dissipation air passage of the inverter, which must be carefully cleaned. At the same time, the process of cleaning the coal dust by the hair dryer is also beneficial to the removal of humid air, and it is convenient to keep the inverter. Internal renovation. Weekly scheduled full-time motor vehicle maintenance personnel should open the motor vehicle inverter to do a routine inspection, and clean the coal dust on the fan and circuit board.
The fact that some roadbed hardening in the underground cannot be changed. In order to reduce the damage of the wheelset, we further improve the quality of the track, strengthen the inspection and maintenance of the track, and adjust the track by straightening, straightening, welding the track, and adding the gauge rod. It is planned to inspect the track and ensure the safe running time of the wheel pair with high track quality. After the wheel is required to bonfire, tempering is performed to eliminate the internal stress of the wheel pair and improve the quality of the wheel pair.
