公开(公告)号：US10801475B2

公开(公告)日：2020-10-13

申请号：US16345673

申请日：2017-11-10

Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Chenglong Wang ,  Zhiwei Qiu ,  Qingliang Zeng ,  Meng Chen ,  Zhihai Liu ,  Shumeng Ma ,  Yue Wang

IPC: F03G1/00 ,  F03G1/02 ,  F03G1/08 ,  F15B1/24 ,  H02K7/02 ,  H02K7/18 ,  H02K7/116 ,  H02K7/14 ,  F03G1/06 ,  F16H48/06

Abstract: A multi-buffer energy accumulation apparatus comprises: an energy storage cylinder, an oil tank, a first scroll spring mechanism, a second scroll spring mechanism, a hydraulic motor, differential planetary train of gearings, and a generator; wherein the energy storage cylinder comprises a hermetically sealed cylinder body, one end of the hermetically sealed cylinder body being provided with an elastic mobile device, the other end thereof being provided with an energy transmission device, and hydraulic oil is filled in the hermetically sealed cylinder body between the elastic mobile device and the energy transmission device; the hermetically sealed cylinder body, the hydraulic motor, and the oil tank are connected via an oil circuit to form a hydraulic loop; the energy transmission device is connected with the first scroll mechanism; the hydraulic motor is connected with the second scroll spring mechanism.

公开(公告)号：US12044322B1

公开(公告)日：2024-07-23

申请号：US18566716

申请日：2021-12-28

Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Ziliang Zhao ,  Zhenguo Lu ,  Hongbin Wang ,  Qingliang Zeng ,  Changjiang Li ,  Long Gao ,  Hong Song

IPC: F16K11/22 ,  F16K31/04 ,  F16K31/53

CPC classification number: F16K11/22 ,  F16K31/041 ,  F16K31/535

Abstract: A volume liquid fixed-ratio multi-batch mixing valve includes a valve body, including a first inlet liquid chamber, a second inlet liquid chamber and a mixing chamber; a first valve core, controlling liquid inflow into the first inlet liquid chamber; a second valve core, controlling liquid inflow into the second inlet liquid chamber; a liquid drainage valve core, controlling liquid drainage; a rotary shaft includes a first impeller and a second impeller. The first impeller and the second impeller alternately control flow to the first inlet liquid chamber and the second inlet liquid chamber and to the second inlet liquid chamber and the mixing chamber. The first impeller and the second impeller are symmetrically about the rotary shaft; when the first inlet liquid chamber and the second inlet liquid chamber are communicated, the second valve core closes the second inlet liquid chamber and the mixing chamber.

公开(公告)号：US11535284B2

公开(公告)日：2022-12-27

申请号：US17619263

申请日：2020-05-07

Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Chenglong Wang ,  Yifang Chen ,  Xueqian Wei ,  Xueting Wang ,  Meng Chen ,  Qingliang Zeng

IPC: B61G11/12 ,  B61G11/16 ,  B61G11/18 ,  F16F9/53 ,  F16F9/54

Abstract: An anti-impact device includes a first connector, an upper outer cylinder, a lower outer cylinder and a second connector which are sequentially connected, where a top of the lower outer cylinder is sleeved with the upper outer cylinder to be movably connected to the upper outer cylinder; an aluminum honeycomb and a magnetorheological buffer outer cylinder are arranged inside the lower outer cylinder, the aluminum honeycomb is arranged at a bottom of a lower end cover, a piston rod is arranged inside the magnetorheological buffer outer cylinder, a top end of the piston rod extends out of an upper end cover and is connected to a collision head, and the piston rod between the collision head and the upper end cover is sleeved with a return spring; and an electromagnetic coil is wound around the piston rod, a damping piston is arranged at a lower part of the piston rod.

公开(公告)号：US20240026788A1

公开(公告)日：2024-01-25

申请号：US18197894

申请日：2023-05-16

Applicant: Shandong University of Science and Technology

Inventor： Lirong Wan ,  Xiaoqi Ma ,  Qingliang Zeng ,  Zhiyuan Sun ,  Wenqian Xu ,  Zhaoji Li ,  Yanpeng Zhu ,  Baolong Chen

IPC: E21D23/04 ,  E21D23/00 ,  E21D23/16 ,  E21F17/18

CPC classification number: E21D23/0427 ,  E21D23/0047 ,  E21D23/0069 ,  E21D23/16 ,  E21F17/18

Abstract: The present disclosure relates to a hydraulic support with a quick response function for coal wall spalling, which includes a base, an upright post, a top beam, an extensible canopy, a face guard, and a vibration meter. The vibration meter is mounted on a hydraulic support, and detects a vibration signal of a coal wall in a non-contact mode. The face guard includes a primary face guard, a secondary face guard, and a tertiary face guard connected in sequence. One side, close to a coal wall, of the primary face guard is connected to a quick response device. The quick response device is in signal communication with the vibration meter. After receiving the vibration signal of the coal wall, the quick response device is abutted against the coal wall before the secondary face guard and the tertiary face guard fit the coal wall.

公开(公告)号：US11480263B2

公开(公告)日：2022-10-25

申请号：US17435704

申请日：2020-05-07

Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Chenglong Wang ,  Genyuan Miao ,  Yifang Chen ,  Xueting Wang ,  Meng Chen ,  Qingliang Zeng

IPC: F16K31/42 ,  E21D23/00 ,  E21D23/26 ,  F16K37/00 ,  H02K33/02

Abstract: Disclosed is a magnetically controlled material-based magnetorheological pilot operated safety valve for a hydraulic support. The safety valve comprises a valve body, a valve core, a reset spring, and a pilot valve; the valve core is disposed in a valve core chamber provided in the valve body, and the pilot valve is disposed in a pilot valve chamber provided in the valve body; the pilot valve includes a magnetically controlled shape memory alloy, an electromagnet, a push rod, a piston, a magnetorheological fluid control coil, and a pilot valve core, which are arranged sequentially from left to right; a plurality of magnetically controlled material control coils are provided on the electromagnet; the magnetically controlled shape memory alloy runs through the electromagnet and is then connected to the push rod, the push rod is connected to the piston, the magnetorheological fluid lies between the piston and the pilot valve core.

公开(公告)号：US10954784B2

公开(公告)日：2021-03-23

申请号：US16753801

申请日：2018-04-23

Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Kuidong Gao ,  Liqing Sun ,  Qingliang Zeng ,  Xin Zhang ,  Wenbo Xu ,  Liang Wang ,  Xiaodi Zhang

IPC: E21C31/02 ,  E21C25/10 ,  E21C25/68 ,  E21C31/08 ,  E21C35/20 ,  E21C35/22

Abstract: A shearer cutting unit with double-speed rollers includes a motor driving unit, a motor driving unit, a gear transmission unit and a roller output unit. The motor driving unit includes a left cutting motor and a right cutting motor which are both arranged in a cutting unit case and connected with the roller output unit in a transmission way through the gear transmission unit. The roller output unit comprises a middle output shaft (3-1), a far-end output shaft, a middle support frame, a middle roller, a far-end support frame and a far-end roller. A cutting roller is separated into two coaxially-rotating parts, and the two rollers can rotate in different speeds.