Tool hoisting device used for shield tunneling machine

The invention discloses a tool hoisting device used for a shield tunneling machine. The tool hosting device comprises a hoisting device body. The hoisting device body comprises a hoisting shaft, a connecting plate, a rod body and a lifting hook. One end of the hosting shaft is fixedly connected with a grabbing head of a splicing device, and the other end of the hoisting shaft is fixed to the bottom of the connecting plate. One end of the rod body is fixedly connected to the side face of the connecting plate, and the other end of the rod body is connected with the lifting hook. The lifting hookcan rotate around the radial end of the rod body. When the grabbing head of the splicing device is fixedly connected with the hoisting shaft, a segment splicing and lifting device rotates and rises or falls to drive the hosing device body to change in altitude, and thus, a tool hung on the lifting hook is transferred towards a cabin of the tool hoisting device. By adoption of the design, the toolhoisting device is simple