Chain wheel wrench and vacuum coating structure

The utility model discloses a chain wheel wrench and a vacuum coating structure, and relates to the technical field of chain wheels. The shafting structure is used for disassembling or installing a vacuum pump, the shafting structure comprises a bearing and a crankset with a sawtooth structure, and the crankset wrench comprises a crankset wrench body and a crankset handle. The chain wheel wrench body comprises a semi-arc structure, the lower end of the chain wheel wrench body is connected with the chain wheel handle, at least one side of the upper end of the chain wheel wrench body is of a chain wheel sawtooth structure, and the chain wheel sawtooth structure is used for being embedded with the chain wheel; a disc shoulder of the crankset abuts against the outer ring of the bearing, the crankset handle is rotated to drive the crankset wrench body so that the crankset can rotate, and disassembly or installation of the shafting structure is completed. 本实用新型公开一种牙盘扳手及真空镀膜结构，涉及牙盘技术领域。用于拆解或安装真空泵的轴系结构，所述轴系结构包括轴承和具有锯