Fragment edge excavating mechanism of multifunctional ballast cleaning machine

The utility model relates to a fragment edge excavating mechanism of a multifunctional ballast cleaning machine. The fragment edge excavating mechanism of the multifunctional ballast cleaning machine comprises a horizontal guide sleeve, a horizontal guide sleeve oil cylinder, vertical guide sleeves, vertically telescopic oil cylinders, scraper pans, conveyer belt frames, conveyer belts and a motor, wherein the vertical guide sleeves are installed on the two sides of the horizontal guide sleeve, one end of the horizontal guide sleeve oil cylinder is connected to the horizontal guide sleeve in a pin joint mode, the other end of the horizontal guide sleeve oil cylinder abuts against the vertical guide sleeves, the scraper pans are arranged at the bottoms of the vertical guide sleeves, the vertically telescopic oil cylinders are arranged between the vertical guide sleeves and the scraper pans respectively, the conveyer belt frames are installed on one sides of the vertical guide sleeves respectively, and the conv