公开(公告)号：US20230182255A1

公开(公告)日：2023-06-15

申请号：US18164691

申请日：2023-02-06

申请人： TIANJIN UNIVERSITY

发明人： Chengzu REN ,  Chunlei HE ,  Guang CHEN ,  Chuanbin YAN ,  Xinmin JIN ,  Kun GENG ,  Yongxiang SU ,  Jing ZHANG ,  Weifeng LIU ,  Lei LIANG

IPC分类号： B24B5/37

CPC分类号： B24B5/37

摘要： A grinding tool kit, apparatus and method for finish machining of a rolling surface of a bearing roller. The apparatus comprises a main machine, an external circulation system, a grinding tool kit and a grinding tool kit clamp. A configuration of the main machine comprise a grinding strip assembly rotary type and a grinding sleeve rotary type. The external circulation system comprises a collection unit (41), a sorting unit (42), a feeding unit (43) and a transmission subsystem. The grinding tool kit comprises a grinding sleeve (21) remaining coaxial during working, and a grinding strip assembly penetrating through the grinding sleeve (21), an inner surface of the grinding sleeve (21) is provided with a first spiral groove (211); and the grinding strip assembly comprises a plurality of grinding strips (22), front surfaces of which are provided with linear grooves (221) or second spiral grooves distributed in a circumferential columnar array.

公开(公告)号：US20210278337A1

公开(公告)日：2021-09-09

申请号：US17239656

申请日：2021-04-25

申请人： TIANJIN UNIVERSITY

发明人： Chengzu REN ,  Chunlei HE ,  Chuanbin YAN ,  Guang CHEN ,  Xiang GE ,  Yang CHEN ,  Xinmin JIN

IPC分类号： G01N19/02

摘要： Disclosed is an equivalent friction coefficient measurement apparatus for a rolling bearing. The apparatus comprises a machine body, a rotary shafting, a sliding seat, a rotational velocity sensor and a data acquisition/processing/calculation/display system. The rotary shafting comprises a mandrel and two support bearings supporting the mandrel. The support bearings are configured as air-floating spindle assemblies or measured rolling bearings or the air-floating spindle assembly and the measured rolling bearing. The rotational velocity sensor is configured to monitor an angular velocity of gyration of the mandrel. The data acquisition/processing/calculation/display system is configured to acquire and process the angular velocity of gyration signal of the mandrel monitored by the rotational velocity sensor, acquire a numerical relationship between the angular velocity of the mandrel and time under a condition of no power, and calculate a numerical relationship between the total kinetic energy of the rotary shafting and time.