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:
Jan. 06, 2009
Filed:
Aug. 04, 2007
Fu-yuan Cheng, Taichung, TW;
Chih-hsien Chao, Taichung, TW;
Fu-Yuan Cheng, Taichung, TW;
Chih-Hsien Chao, Taichung, TW;
Hiwin Mikrosystem Corp., Taichung, TW;
Abstract
A clearance eliminating structure for a shaft of a direct drive torque motor comprises: a body, a direct drive torque motor, a bearing assembly and an adjustment nut. The main shaft includes a plurality of stages which are used to positioning the torque motor and the bearing assembly, and then torque motor and the bearing assembly are used to position the body. The main shaft is formed at the end with threads for enabling the adjustment nut to press tightly against the respective components on the main shaft. When the present invention is used on the assembly of the direct drive torque motor, which can not only simplify the assembly operation, improve the reliability, but also eliminate the clearance of the main shaft to increase the service life of the product.