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公开(公告)号：US3857610A
公开(公告)日：1974-12-31
申请号：US41868873
申请日：1973-11-23
Applicant: JARVA INC
Inventor： SNYDER L
Abstract: A tunneling machine is disclosed which includes a cutter head rotatable in a first direction and in a second direction opposite the first direction. Inside roller cutters and gage (or outside) roller cutters are mounted on the head for cutting or crushing the end face of the tunnel. Each gage cutter is provided with a novel gage scraper means for clearing materials from the path of the gage cutter whether the head is rotated in the first or in the second direction.
Abstract translation: 公开了一种隧道掘进机，其包括可沿第一方向和与第一方向相反的第二方向旋转的切割头。 内部滚子切割器和量规（或外部）滚子切割器安装在头部上用于切割或破碎隧道的端面。 每个量具切割器设置有新的量规刮刀装置，用于从头部切割器的路径清除材料，无论头部是在第一方向还是在第二方向上旋转。
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公开(公告)号：US3722957A
公开(公告)日：1973-03-27
申请号：US3722957D
申请日：1971-04-05
Applicant: JARVA INC
CPC classification number: E21D9/104
Abstract: A tunneling machine includes a support frame, a rotatable cutter head, and inside roller cutters and gage roller cutters for cutting or crushing the end face of a tunnel. Each gage cutter has a gage scraper with a scraper blade engaging the tunnel surface for clearing materials from the path of the gage cutter. A spring biases the scraper blade toward the tunnel surface, and the scraper blade is pivotally mounted with respect to the cutter head for movement toward and away from the tunnel surface along an arcuate path. A bolt head in the arcuate path provides an adjustable stop for preventing excessive outward travel of the scraper blade when a void is encountered in the tunnel surface. The bolt also provides a release means to displace the scraper blade away from the tunnel surface to permit removal of the scraper blade.
Abstract translation: 隧道机包括支撑框架，可旋转切割头，以及用于切割或压碎隧道端面的内侧滚子切割器和量规滚轮切割器。 每个量具切割器具有刮刀，其具有与隧道表面接合的刮刀，用于从量规切割器的路径清除材料。 弹簧将刮刀朝向隧道表面偏压，并且刮刀相对于刀头枢转地安装，以沿着弓形路径朝向和远离隧道表面移动。 弧形路径中的螺栓头提供可调节的止挡件，用于防止在隧道表面中遇到空隙时刮刀的过度向外移动。 螺栓还提供了释放装置，以将刮刀从隧道表面移开以允许刮刀刮除。
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