公开(公告)号：US11873718B1

公开(公告)日：2024-01-16

申请号：US18144180

申请日：2023-05-06

Applicant: Zhejiang University City College

Inventor： Zhi Ding ,  Yingtao Hu ,  Zhen Wang ,  Chao Ding ,  Huiping Tang ,  Liangpeng Che

IPC: E21D9/06 ,  E21D9/087 ,  E21D9/11 ,  E21D9/093

CPC classification number: E21D9/0621 ,  E21D9/0873 ,  E21D9/093 ,  E21D9/112

Abstract: A propulsion control device of a 3D printing-based tunnel boring machine, includes two propulsion control modules, and each of which includes tunnel support assemblies, a propulsion control assembly and a barrel body, where a propulsion sliding sleeve is arranged on an outer surface, and several tunnel support assemblies are arranged on an outer side of each propulsion sliding sleeve. Support plates on the two propulsion control modules alternately rise to support a 3D printed tunnel pipe. In the propulsion control module with the support plates in a closed state, a propulsion hydraulic cylinder controls a propulsion hydraulic cylinder extending end to contract, so as to pull the propulsion sliding sleeve to a front section of the barrel body; and in the propulsion control module with the support plates in a support state, the barrel body continuously advances relative to the propulsion sliding sleeve.