Coal mine crusher capable of automatically changing cutter

A coal mine pulverizer capable of automatically replacing cutters comprises a pulverizing unit used for pulverizing coal mine and a cutter replacing unit used for replacing blades of the pulverizing unit, the pulverizing unit comprises two spindles arranged in parallel, and a plurality of detachable cutter holder assemblies are installed on the spindles. The tool changing unit further comprises clamping assemblies and telescopic claws which are in one-to-one correspondence with the main shafts. Segmented automatic tool changing of the pulverizer can be achieved. 一种自动换刀的煤矿粉碎机，包括有用于粉碎煤矿的粉碎单元和用于更换粉碎单元刀片的换刀单元，粉碎单元包括有两根相互平行设置的主轴，主轴上均安装有若干可拆卸的刀座组件，换刀单元还包括有与主轴一一对应的夹持组件和伸缩爪。它可以实现粉碎机的分段自动换刀。