公开(公告)号：US20220299403A1

公开(公告)日：2022-09-22

申请号：US17835914

申请日：2022-06-08

Applicant: BEIJING UNIVERSITY OF TECHNOLOGY

Inventor： Shuting Ji ,  Yueming Zhang ,  Weihao Li

IPC: G01M13/027

Abstract: The invention relates to a device for testing the precision retaining ability and fatigue life of RV reducer. The device includes a workbench, a mounting bracket base, a upper pressure plate for the mounting bracket, a servo motor, a mounting fixed sleeve, a tested RV reducer, a temperature sensor, an extension arm, a simulated swing arm, two counterweight blocks named the first and second counterweight block, the first displacement sensor, a sensor holder, a sensor protector, a detection rod, and the second displacement sensor. The device is equipped with two counterweight blocks at the end of the simulated swing arm to simultaneously provide variable loaded torque and loaded bending moment to the RV reducer. The first displacement sensor is placed under the counterweight block to measure the positioning accuracy and repeat positioning accuracy of RV reducer. The second displacement sensor is placed under the detection rod to measure the bending stiffness of RV reducer. After running for a specified time, the precision retaining ability, fatigue life and wear rule of RV reducer are tested. The invention provides an experimental basis for theoretical research on the wear rule and accelerated life of RV reducer.

公开(公告)号：US11921003B2

公开(公告)日：2024-03-05

申请号：US17835914

申请日：2022-06-08

Applicant: BEIJING UNIVERSITY OF TECHNOLOGY

Inventor： Shuting Ji ,  Yueming Zhang ,  Weihao Li

IPC: G01M13/04 ,  G01M13/027

CPC classification number: G01M13/027

Abstract: The invention relates to a device for testing the precision retaining ability and fatigue life of RV reducer. The device includes a workbench, a mounting bracket base, a upper pressure plate for the mounting bracket, a servo motor, a mounting fixed sleeve, a tested RV reducer, a temperature sensor, an extension arm, a simulated swing arm, two counterweight blocks named the first and second counterweight block, the first displacement sensor, a sensor holder, a sensor protector, a detection rod, and the second displacement sensor. The device is equipped with two counterweight blocks at the end of the simulated swing arm to simultaneously provide variable loaded torque and loaded bending moment to the RV reducer. The first displacement sensor is placed under the counterweight block to measure the positioning accuracy and repeat positioning accuracy of RV reducer. The second displacement sensor is placed under the detection rod to measure the bending stiffness of RV reducer. After running for a specified time, the precision retaining ability, fatigue life and wear rule of RV reducer are tested. The invention provides an experimental basis for theoretical research on the wear rule and accelerated life of RV reducer.