Telescopic loading mechanism

The invention relates to the technical field of heading machines, and discloses a telescopic loading mechanism which aims at overcoming the defects that a fan-shaped rotary telescopic mode of a loading mechanism exists and the position of a raking claw driving device is fixed, and comprises a main shovel plate body, and the main shovel plate body comprises a left side panel and a right side panel which are symmetrically arranged; a redirection chain wheel and a chain way are arranged between the left side panel and the right side panel, the left side of the left side panel is connected with a left telescopic shovel plate body and can stretch out and draw back towards the left side, the right side of the right side panel is connected with a right telescopic shovel plate body and can stretch out and draw back towards the right side, driving devices are arranged on the left side panel and the right side panel, and raking claws are installed on output shafts of the driving devices. Wherein the driving device arra