Reaming and sucking type spiral conveyor capable of preventing cutter head from caking

Abstract

The invention provides a reaming and sucking type spiral conveyor capable of preventing a cutter head from caking. The conveyor comprises a pair of reaming and sucking mechanisms arranged in a soil bin of a shield tunneling machine, and one end of each reaming and sucking mechanism is fixedly arranged on the inner wall of the soil bin through a support bearing; the other end of each reaming and sucking mechanism is in transmission connection with a rotating shaft of the spiral conveyor for conveying muck in the soil bin through a transmission mechanism; each reaming and sucking mechanism comprises a rotating rod, and a spiral stirring belt used for stirring the muck in the soil bin is arranged on each rotating rod; a pressure sensor is further arranged in the soil bin; and a driving motorand the pressure sensor are electrically connected to a controller; and each spiral stirring belt is fixedly arranged on the corresponding rotating rod through a supporting rod, and a gap is formed between each spiral stirring belt and the corresponding rotating rod. According to the structure, the muck in the soil bin can be fully stirred, so that the muck keeps good fluidity, the muck is discharged outwards through the spiral conveyor, and the tunneling efficiency of the shield tunneling machine is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of shield tunneling machinery and equipment, and in particular relates to a hinged suction screw conveyor for preventing cake formation on a cutter head. Background technique [0002] With the vigorous advancement of subway construction, the shield machine has become the preferred equipment for subway tunnel construction. However, due to the complex ground conditions, the shield machine often has mud cakes on the cutter head, which seriously affects the construction progress. When the mud cake occurs on the cutterhead, the previous method is to stop the machine immediately and use special drilling tools such as jacks to manually clean the mud cake. It takes 8 to 10 hours to clean the mud cake, and even in a tunnel less than 1 kilometer Shut down 6~10 times to manually clean up the mud cake, which seriously caused the delay of the construction period and the increase of the cost. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0002] With the vigorous advancement of subway construction, the shield machine has become the preferred equipment for subway tunnel construction. However, due to the complex ground conditions, the shield machine often has mud cakes on the cutter head, which seriously affects the construction progress.

When the mud cake occurs on the cutterhead, the previous method is to stop the machine immediately and use special drilling tools such as jacks to manually clean the mud cake. It takes 8 to 10 hours to clean the mud cake, and even in a tunnel less than 1 kilometer Shut down 6~10 times to manually clean up the mud cake, which seriously caused the delay of the construction period and the increase of cost

Images