TAPERED SPIRAL TYPE PIPE JACKING MACHINE

The present invention discloses a tapered spiral type pipe jacking machine, which relates to the pipe jacking construction technology field and comprises: annular silo, middle-section shell, spindle head, spindle, electric motor, cutting device and conveying device; The annular silo is fixedly connected to the spindle head, the spindle head is connected to an end of the spindle and rotates together with the spindle, the other end of the spindle is inserted into the middle-section shell and connected to the output terminal of the electric motor, the electric motor is arranged in the middle-section shell, the cutting device is fixedly connected to the outside of the annular silo, and multiple conveying baffles are arranged slantly in the annular silo at the circumferential direction and used for conveying the soil from the bottom of the annular silo to its top so that the soil will fall; The conveying device is arranged right under the falling soil from the top of the annular silo and used for conveying the soil out. This invention has the advantages of a simple and compact structure and a high soil clearing efficiency.