Long screw rod fastening guide wear-resistant sleeve reciprocating impact excavating part easy to machine as well as assemble and disassemble for mining machine

The invention belongs to the field of machinery, and particularly relates to a long screw rod fastening guide wear-resistant sleeve reciprocating impact excavating part, easy to machine as well as assemble and disassemble, for a mining machine in the excavating field. Guide wear-resistant sleeve(s) is/are arranged between an impact guide part and a box body or/and between the impact guide part and a rolling friction body; impact head(s) is/are arranged at one end or two ends of the impact guide part; punching teeth are arranged on a punching tooth seat; when separated from the impact guide part, a guide screw rod passes through a guide screw rod hole and is matched with a guide nut, so that the punching tooth seat, the guide wear-resistant sleeve(s), the impact guide part and a guide rod connecting piece are fastened into an integral reciprocating impact rack; or when integrated with the impact guide part, the guide screw rod is matched with the guide nut, so that the punching tooth seat, the guide wear-resistant sleeve(s) and the guide rod connecting piece are fastened into the integral reciprocating impact rack; the guide wear-resistant sleeve(s) can be driven to make reciprocating motion by the guide rod connecting piece when supported by the rolling friction body; therefore, the practicality of the equipment can be improved, and the service life of the equipment can be prolonged.