Automatic Control System of Electromagnetic Vault Down-Faller

Abstract

A promising direction in the development of machines for unloading bunker devices is the use of a pulsed electric power drive having an engine with a linear path movement of the working body. At the same time, the use of capacitor sources makes it easy to implement cycles in electromagnets with different intensities of converting magnetic energy into mechanical energy and recovering magnetic energy from electrical energy and seems to be an effective means of improving the energy performance of the vault down-faller. An important indicator of a pulsed electromagnetic vault down-faller is the impact energy, which depends on the kinetic energy of its armature just before the impact with the bunker. In practice, the value of the supply voltage is chosen so as to provide the maximum value for the guaranteed destruction of the arch in the bunker. However, an excess of electrical and mechanical energy leads to overheating of the winding, reducing the mechanical resource of the moving parts of the LEME of the vault down-faller. This paper proposes an approach to the implementation of automatic impact energy correction of LEME of the vault down-faller by partitioning capacitive energy storage. The control system is equipped with automatic protection against emergency operation of LEME of the vault down-faller. In particular, when the temperature of its winding is exceeded, a screw feeder drive and an electromagnetic system are disconnected by a feedback signal from the temperature sensor.