Title:
DEVICE FOR MEASURING EQUIVALENT FRICTION COEFFICIENT OF ROLLING BEARING
Document Type and Number:
WIPO Patent Application WO/2020/088431
Kind Code:
A1
Abstract:
A device for measuring the equivalent friction coefficient of a rolling bearing, comprising a machine body (9), a rotary shaft system, a sliding seat (10), a rotational velocity sensor and a data acquisition/processing/calculation/display system. The rotary shaft system comprises a mandrel (13) and a support bearing supporting the mandrel (13); the support bearing is an air-floating spindle assembly or a measured rolling bearing; the rotational velocity sensor is used to monitor the rotational angular velocity of the mandrel (13); the data acquisition/processing/calculation/display system collects and processes a rotational angular velocity signal of the mandrel (13) that is monitored by the rotational velocity sensor, so as to obtain the numerical relationship between the angular velocity of the mandrel (13) under no power conditions and time, the numerical relationship between the total kinetic energy of the rotary shaft system and time, and the numerical relationship between the friction power and the angular velocity of the measured rolling bearing; and the data acquisition/processing/calculation/display system calculates and displays the equivalent friction torque and equivalent friction coefficient of the measured rolling bearing. The present measuring device has the ability to rapidly and precisely measure the equivalent friction torque and equivalent friction coefficient of the rolling bearing.
Inventors:
REN CHENGZU (CN)
HE CHUNLEI (CN)
YAN CHUANBIN (CN)
CHEN GUANG (CN)
GE XIANG (CN)
CHEN YANG (CN)
JIN XINMIN (CN)
HE CHUNLEI (CN)
YAN CHUANBIN (CN)
CHEN GUANG (CN)
GE XIANG (CN)
CHEN YANG (CN)
JIN XINMIN (CN)
Application Number:
PCT/CN2019/113880
Publication Date:
May 07, 2020
Filing Date:
October 29, 2019
Export Citation:
Assignee:
UNIV TIANJIN (CN)
International Classes:
G01M13/04
Domestic Patent References:
| WO2004031601A1 | 2004-04-15 |
Foreign References:
| CN208999098U | 2019-06-18 | |||
| CN208999099U | 2019-06-18 | |||
| CN208999097U | 2019-06-18 | |||
| CN109238707A | 2019-01-18 | |||
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| CN109238709A | 2019-01-18 | |||
| CN109540516A | 2019-03-29 | |||
| CN207992022U | 2018-10-19 | |||
| CN105738113A | 2016-07-06 | |||
| CN108663210A | 2018-10-16 | |||
| JP2000192979A | 2000-07-11 |
Attorney, Agent or Firm:
BEI & OCEAN (CN)
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