The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2026
Filed:
Nov. 16, 2023
Nk Photonics Ltd., Taipei, TW;
Nan-Kuang Chen, Taipei, TW;
Si-Chi Chen, Taipei, TW;
Hsuan-Yu Chen, Taipei, TW;
Wan-Shan Tsao, Taipei, TW;
NK Photonics Ltd., Taipei, TW;
Abstract
A performance monitoring system for a disc cutter of a tunnel boring machine (TBM) is provided, and includes a disc cutter body, a shaft assembly and an isolation boss; the shaft assembly includes a shaft main body and a bearing spacer located on the shaft main body; a rotating mechanism is arranged in a space between the isolation boss and the bearing spacer; the rotating mechanism includes a rotator and a T-shaped extension support located between the bearing spacer and the rotator; bearing retainers of roller bearings are arranged on two sides of the T-shaped extension support; a ring-shaped grating strip is arranged on one side of the rotator close to the T-shaped extension support; a connecting component is arranged on one side of the rotator away from a rotating bearing; and a sealing assembly is arranged between the T-shaped extension support and the rotator.