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:
Feb. 20, 2001
Filed:
Apr. 20, 1997
Engelbert Eisenbarth, Quierschied, DE;
Saarbergwerke Aktiengesellschaft, Saarbrücken, DE;
Abstract
The invention relates to a multipart drive shaft of a chain drive for chain scraping conveyors for heavy-duty sprags in coal mining, consisting of a main shaft with unilateral or bilateral internal gearing for receiving externally geared stub shafts for the gear connection, and a chain sprocket fastened to the main shaft for interaction with the conveyor chain band. In this invention, the chain sprocket fastened to the main shaft is constructed in multiple parts by radially running segments, and is shrink-fitted in several or all individual parts to the main shaft. In accordance with the invention, a radial division into two shrink-fitted casings and a chain drum is especially appropriate and economical.