Railway switch ballast cleaning machine

A railway switch ballast cleaning machine with a digging mechanism of hollow framework: an UP guide slot and a DOWN guide slot are respectively installed in corresponding guide sleeves. A digging chain which can rotate under driving by a drive sprocket installed in the hollow cavity of the framework. The two guide sleeves connect with a horizontal expansion socket installed on the main bodywork through a chain shaft. A mixed ballast conveying belt is installed on the upper end of the framework. The drive sprocket is installed on the upper corner of the framework. The present utility model equips with framework swing (horizontal rotation) device. During operation, the decline degree of the digging bottom girder can be changed through rotation and transversal movement of the digging mechanism controlled by an oil cylinder. And thus the digging width can be changed continuously to adapt to operation requirements in railway switch area.