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1. (WO2018103535) NORMAL-PRESSURE REPLACEMENT CUTTER DISC

Pub. No.:    WO/2018/103535    International Application No.:    PCT/CN2017/112563
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Fri Nov 24 00:59:59 CET 2017
IPC: E21D 9/08
Applicants: CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO., LTD.
中铁工程装备集团有限公司
Inventors: ZHANG, Shiwei
张世伟
ZHANG, Jianian
张家年
ZHANG, Lin
张琳
Title: NORMAL-PRESSURE REPLACEMENT CUTTER DISC
Abstract:
A normal-pressure replacement cutter disc comprises a large ring (4) and a circular cutter disc. The circular cutter disc is arranged within the large ring (4) and comprises main cutter spokes (1), auxiliary cutter spokes (3), and normal-pressure replacement cutters and normal-pressure replacement scrapers (2). The circular tool disc has a radially arranged container-type structure. The main cutter spokes (1) are of a container type, and the auxiliary cutter spokes (3) are arranged radially. Both the normal-pressure replacement cutters and normal-pressure replacement scrapers (2) are disposed at the main cutter spokes (1), and cutter cylinders of the normal-pressure cutters are embedded in the containers of the main cutter spokes (1). The circular cutter disc comprises six main cutter spokes (1) and six auxiliary cutter spokes (3), alternately and evenly arranged. The normal-pressure cutter replacement disc is used to replace a seriously worn cutter while maintaining pressure, ensuring no delay in construction progress and the safety of construction workers, speeding up construction, reducing construction time, reducing construction costs, enhancing wear resistance, extending service life, monitoring operations of the cutter disc in real time, and preventing the cutter disc from being damaged in accidents.