Title:
PRECISION RETENTIVITY AND FATIGUE LIFE TESTING DEVICE FOR RV REDUCER
Document Type and Number:
WIPO Patent Application WO/2022/105458
Kind Code:
A1
Abstract:
A precision retentivity and fatigue life testing device for an RV reducer, comprising a worktable (1), a mounting support base (2), a mounting support upper pressure plate (3), a servomotor (4), a mounting fixed disc (5), an RV reducer (6) to be tested, a temperature sensor (7), an extension arm (8), an analog swing arm (9), two counterweight blocks, i.e., a first counterweight block (10) and a second counterweight block (10'), a first displacement sensor (11), a sensor support (12), a sensor protection rack (13), a detection rod (14), and a second displacement sensor (15). According to the device, the counterweight blocks (10, 10') on the tail end of the analog swing arm (9) are used to simultaneously apply a variable load torque and load bending moment to said RV reducer (6). The first displacement sensor (11) is disposed below the first counterweight block (10), and is used for measuring the positioning precision and the repeated positioning precision of said RV reducer (6). The second displacement sensor (15) is disposed below the detection rod (14), and is used for measuring the bending stiffness of said RV reducer (6). The precision retentivity, the fatigue life, and the wear rule of said RV reducer (6) are measured by means of operation of the specified time, thereby providing a test foundation for theoretical research of the wear rule and the accelerated life of said RV reducer (6).
Inventors:
JI SHUTING (CN)
ZHANG YUEMING (CN)
LI WEIHAO (CN)
ZHANG YUEMING (CN)
LI WEIHAO (CN)
Application Number:
PCT/CN2021/121983
Publication Date:
May 27, 2022
Filing Date:
September 30, 2021
Export Citation:
Assignee:
UNIV BEIJING TECHNOLOGY (CN)
International Classes:
G01M13/00
Foreign References:
| CN112504670A | 2021-03-16 | |||
| CN109443757A | 2019-03-08 | |||
| CN111307447A | 2020-06-19 | |||
| CN209624050U | 2019-11-12 | |||
| CN109357867A | 2019-02-19 | |||
| CN108287072A | 2018-07-17 | |||
| CN101441477A | 2009-05-27 | |||
| KR20100000548A | 2010-01-06 |
Other References:
ZHANG YUE-MING, JI, YONG-HU，JI, FEI SHU-TING，ZHAO: "Life Calculation and Accelerated Life Test of RV Reducer ", MACHINERY DESIGN ＆ MANUFACTURE, no. 8, 1 August 2020 (2020-08-01), pages 270 - 274, XP055931396, DOI: 10.19356/j.cnki.1001-3997.2020.08.064
Attorney, Agent or Firm:
BEIJING SIHAI TIANDA INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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