Device for automatically hoisting shield segment in shield construction and hoisting method

The invention discloses a device for automatically hoisting a shield segment in shield construction and a hoisting method. The device comprises a shield segment assembling head and a rotary hoisting assembly; the shield segment assembling head can be clamped into the rotary hoisting assembly and rotates or moves along with the rotary hoisting assembly. The rotary hoisting assembly rotates to drive the shield segment assembling head 7 to be screwed into the shield segment, and then the shield segment assembling head 7 and the shield segment assembling head 7 are hoisted to a needed station together. According to the device, a round hoisting head at the top of a traditional splicing head is machined into a square head for the first time, the friction force between the motor rotating device and the splicing head is increased, torque transmission is facilitated, and the square head can be easily clamped into a connecting device. And in cooperation with the rotary hoisting assembly, automatic operation of screwing