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:
May. 10, 2022
Filed:
Nov. 12, 2021
China University of Mining and Technology, Xuzhou, CN;
Anye Cao, Xuzhou, CN;
Yaoqi Liu, Xuzhou, CN;
Chengchun Xue, Xuzhou, CN;
Guifeng Wang, Xuzhou, CN;
Geng Li, Xuzhou, CN;
Wu Cai, Xuzhou, CN;
Siyuan Gong, Xuzhou, CN;
Linming Dou, Xuzhou, CN;
CHINA UNIVERSITY OF MINING AND TECHNOLOGY, Xuzhou, CN;
Abstract
A similar simulation experimental device of hydraulic energy-absorbing roadway support is provided. A similar model is placed in a model box, a roadway is excavated in the similar model, and hydraulic energy-absorbing support devices are placed in the roadway on the periphery of the roadway. Front and rear ends of the hydraulic energy-absorbing support device are connected to supporting plates, left and right sides of the model box are provided with horizontal hydraulic cylinders, and front ends of the horizontal hydraulic cylinders are connected to pressure plates. One or several cushion blocks are placed at the top of the model box, and an upper pressure plate is placed above the cushion block(s). Vertical hydraulic cylinders are installed at both ends of the upper pressure plate. An impact rod passing through the upper pressure plate is placed above the cushion block to apply vertical impact load to the similar model.