Power supply device for electrical devices which are allocated to underground machines operated by a hydraulic system

摘要

In underground working, electronic control devices, the power supply of which is effected by means of a power pack fed by alternating voltage, are used for the most varied machines, such as, for example, support shields. The energy for these control devices and also for the face lighting is supplied via a special power cable with appropriate plug connector installation. According to the invention, the cable with plug connector installation is avoided by a turbine being provided as a power supply, which turbine is operated by the hydraulic system and drives a generator used for the power supply of electronic devices and face lights.