公开(公告)号：US12018534B1

公开(公告)日：2024-06-25

申请号：US18403435

申请日：2024-01-03

Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Weiyao Guo ,  Yueying Zhang ,  Yongqiang Zhao ,  Wenjing Guo ,  Chengguo Zhang ,  Xiangyu Wang ,  Tongbin Zhao ,  Yunliang Tan

IPC: E21B7/00 ,  E21B3/02 ,  E21B19/081 ,  E21B21/01 ,  E21C37/00 ,  E21C41/18

CPC classification number: E21B19/081 ,  E21B3/02 ,  E21B21/011 ,  E21C37/00 ,  E21C41/18

Abstract: A drilling device for coal mining is provided, including a placement board. The placement board is fixedly connected to a first support pillar and a second support pillar, and the first support pillar and the second support pillar are together fixedly connected to a transmission rod; the transmission rod is connected to support rods symmetrically distributed in a limited sliding manner, and the support rods symmetrically distributed are connected to a connecting rod in a sliding manner; the connecting rod is provided with grooves evenly distributed in a circumferential direction, the grooves are fixedly connected to pneumatic telescopic blocks, and the telescopic end of each pneumatic telescopic block is fixedly connected to an arc-shaped plate. The arc-shaped plate is extended in a circumferential direction to support the drilled hole close to the drill bit, preventing the collapse of the drilling wall close to the drill bit.

公开(公告)号：US12276194B2

公开(公告)日：2025-04-15

申请号：US18818611

申请日：2024-08-29

Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Weiyao Guo ,  Linpeng Xu ,  Lexin Chen ,  Yongqiang Zhao ,  Bo Li ,  Chengzhi Xia ,  Chun Zhu ,  Gan Li ,  Lei Zhang

IPC: E21D23/04 ,  E21D15/44

Abstract: An automatic support device for resisting rock burst in mines is provided, which includes bases symmetrically distributed, sliding frames are slidably connected to the bases, hydraulic rods are fixedly connected to the bases, and telescopic ends of the hydraulic rods are fixedly connected to the adjacent sliding frames. The sliding frames are fixedly connected to brackets, and the brackets symmetrically distributed are provided with a main support plate, on which pushing rods are provided. The device can slow down the impact force of the device when rock burst occurs in the mine, at the same time, it plays a supporting role in the mine, ensuring the stability of the roof of the mine.