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:
Dec. 03, 2019
Filed:
Dec. 01, 2017
China University of Mining and Technology, Xuzhou, CN;
Xuzhou Goldfluid Hydraulic Technology Development Co., Ltd, Xuzhou, CN;
Haifeng Yan, Xuzhou, CN;
Zhongbin Wang, Xuzhou, CN;
Xuliang Lu, Xuzhou, CN;
Chao Tan, Xuzhou, CN;
Lei Si, Xuzhou, CN;
Yiqiao Man, Xuzhou, CN;
Kai Fan, Xuzhou, CN;
CHINA UNIVERSITY OF MINING AND TECHNOLOGY, Xuzhou, CN;
XUZHOU GOLDFLUID HYDRAULIC TECHNOLOGY DEVELOPMENT CO., LTD, Xuzhou, CN;
Abstract
An automatic straightening device includes a fully-mechanized coal mining working face, which includes a plurality of middle troughs, and each middle trough is connected to a push-pull rod of one hydraulic support. The fully-mechanized coal mining working face is provided with the automatic straightening device. The automatic straightening device includes a flexible element rope, the tensile and compressive force sensors, and a signal processing device. Each middle trough is provided with two tensile and compressive force sensors; one end of the flexible element rope is connected to a rope extend-retract control device, and the other end of the flexible element rope sequentially passes through lifting rings to be connected to the tensile and compressive force sensors and is fixed to a positioning force bearing bolt on the outermost side.