Device and method for measuring friction torque of rolling bearing based on optical fiber sensing
A rolling bearing and friction torque technology, applied in the field of bearing measurement, can solve problems such as complex structure and difficult dynamic monitoring, and achieve the effects of reducing purchase cost and use cost, fast and accurate measurement, and convenient installation
Pending Publication Date: 2022-07-05
HENAN UNIV OF SCI & TECH
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Problems solved by technology
[0004] In order to solve the problem that the existing bearing friction torque measurement device has a complex structure and is difficult to dynamically monitor the friction torque, the purpose of the present invention is to provide a measurement device and method for the friction torque of rolling bearings based on optical fiber sensing. The measurement device has a volume Small size, corrosion resistance, easy installation, low cost and other advantages, can quickly and accurately measure the friction torque of rolling bearings
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Embodiment 1
[0042] This embodiment provides a method for measuring friction torque of a rolling bearing. figure 1 A deep groove ball bearing is shown as an example, but the method can also be used to measure other rolling bearings such as angular contact ball bearings, cylindrical roller bearings, etc.; e.g. figure 1 As shown in the structure, the measuring device includes a deep groove ball bearing, a collar 1 with a connecting beam 2, and a moment balance ring 3, wherein the density and elastic modulus of the materials for making the beam collar 1 and the moment balance ring 3 should be as small as possible. The processing size of the collar 1 should form an interference fit with the outer ring of the bearing, and the designed width of the moment balance ring 3 is slightly larger than the beam width of the connecting beam 2; Before assembling the test device, use the adhesive to fix the FBG to the connecting beam 2 the middle position of , such as figure 2 Install the deep groove ba...
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The invention relates to a rolling bearing friction torque measuring device and method based on optical fiber sensing, the measuring device comprises a rotating shaft, a rolling bearing, an FBG sensor, a lantern ring with a connecting beam and a torque balancing ring, the inner ring of the rolling bearing is installed on the rotating shaft, the lantern ring is in interference fit with the outer ring of the rolling bearing, and the FBG sensor is installed on the rotating shaft. A plurality of connecting beams are arranged along the tangential direction of the lantern ring, an FBG sensor is adhered to each connecting beam, the tail end of each connecting beam is inserted into a slotted hole of the corresponding torque balancing ring for fixing, when the bearing outer ring generates micro motion under the action of friction torque, the torque is transmitted to the external torque balancing ring by the connecting beams, and the connecting beams can generate elastic deformation, so that the FBG sensor can be detected. The friction torque of the rolling bearing is obtained by measuring and calculating deformation through the FBG sensor, the measuring device has the advantages of being simple in structure, small in size, resistant to corrosion, easy to install and the like, the measuring method is easy to operate, and the friction torque of the rolling bearing can be rapidly and accurately measured.
Description
technical field [0001] The invention relates to the technical field of bearing measurement, in particular to a device and method for measuring friction torque of a rolling bearing based on optical fiber sensing. Background technique [0002] Bearings are important mechanical standard parts, mainly used to transmit motion and bear loads, and their performance directly affects the efficiency, accuracy and even life of rotating machinery. Bearings generally include an inner ring, an outer ring and rolling elements. The friction torque generated by the interaction of the three components during operation is an important indicator for evaluating bearing performance. Therefore, it is necessary to measure the friction torque during the operation of the bearing. [0003] Because the friction torque of the bearing is relatively small, the traditional measurement method is difficult to measure or accurately measure the friction torque of the bearing, and the measurement of the frictio...
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Login to View More IPC IPC(8): G01L5/00G01M13/04
CPCG01L5/0009G01M13/04
Inventor 董艳方马亚飞陈非凡邱明李军星杨传猛庞晓旭
Owner HENAN UNIV OF SCI & TECH