公开(公告)号：US5205613A

公开(公告)日：1993-04-27

申请号：US716849

申请日：1991-06-17

Applicant: Howard K. Brown, Jr.

Inventor： Howard K. Brown, Jr.

IPC: E21D9/087 ,  E21D9/10

CPC classification number: E21D9/1093

Abstract: A tunnel boring machine includes a cutterhead having a plurality of cutting units and being rotatable on a machine frame. Two sets of three anchor shoes float relative to the frame and are disposed circumferentially, with the anchor shoes of the two sets alternating on the frame. The two sets of three anchor shoes allow continuous advance of the tunnel boring machine. Connection between the two sets of anchor shoes and the frame is provided by two sets of three thrust cylinder bipods. One set of three thrust cylinder bipods is connected to each set of three floating anchor shoes, with one bipod attached to each anchor shoe. All of the anchor shoes in each set are interconnected by three pairs of floating gripper cylinders, with each pair of gripper cylinders longitudinally spaced on the two anchor shoes that they connect. Each of the two sets of three anchor shoes is sequentially gripped and ungripped with the tunnel wall by the attached gripper cylinders and independently of the other set of anchor shoes. The ungripped set of three anchor shoes and the frame are advanced with respect to the gripped set of three anchor shoes by the three thrust cylinder bipods connected to the gripped set of three anchor shoes.

Abstract translation: 隧道掘进机包括具有多个切割单元并可在机架上旋转的刀架。 两组三个锚定鞋相对于框架浮动并且周向地设置，两组的锚固鞋在​​框架上交替。 两套三锚鞋允许隧道掘进机连续推进。 两套锚鞋和框架之间的连接由两套三个推力缸二脚架提供。 一组三个推力缸双脚架连接到每组三个浮动锚鞋，一个双脚架连接到每个锚鞋。 每组中的所有锚鞋通过三对浮动夹持器缸相互连接，每对夹持器缸在其连接的两个锚鞋上纵向间隔开。 两组三个锚鞋中的每一个依次被夹持并且被附着的夹持器气缸与隧道壁不相配，并且独立于另一组锚固鞋。 三个锚定鞋和框架相对于夹持的三个锚定鞋组由三个推力缸二脚架连接到三个锚定鞋的夹持组一起前进。