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Optical fiber speed measuring device and speed measuring method of high-speed rolling bearing cage with inner and outer rings rotating simultaneously

A technology for bearing cages and speed measuring devices, which is applied to devices using optical methods, etc., can solve the problems of not being able to measure the rotational speed of rolling bearing cages, and not being able to measure slippage, etc.

Active Publication Date: 2017-11-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the existing method of measuring the rotating speed of the bearing cage, the present invention needs to change the structure of the bearing cage, and cannot measure the rotating speed of the rolling bearing cage in which the inner and outer rings rotate at the same time and cannot measure the slippage

Method used

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  • Optical fiber speed measuring device and speed measuring method of high-speed rolling bearing cage with inner and outer rings rotating simultaneously
  • Optical fiber speed measuring device and speed measuring method of high-speed rolling bearing cage with inner and outer rings rotating simultaneously
  • Optical fiber speed measuring device and speed measuring method of high-speed rolling bearing cage with inner and outer rings rotating simultaneously

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Experimental program
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specific Embodiment approach 1

[0037] Specific implementation mode 1: refer to figure 1 and Figure 5 This embodiment is specifically described. The high-speed rolling bearing cage optical fiber speed measuring device with the inner and outer rings rotating at the same time described in this embodiment includes a display 1, a counter 2, an optical fiber amplifier 3, a transmitting end fiber 4, a receiving end fiber 5, and an arrangement fiber. 6. Outer ring installation tooling 7, rolling bearing 8, outer ring dragging device 9, inner ring dragging device 10, No. 1 speed measuring device 11, No. 2 speed measuring device 12, transceiver end fixing device 13, No. 1 shaft 14 and No. 2 axis 15,

[0038] The outer ring installation tooling 7 is provided with a plurality of through holes. The center of the outer ring installation tooling 7 is the center of the plurality of through holes, and the center is evenly distributed along the circumferential direction. An optical fiber is embedded in each through hole to...

specific Embodiment approach 2

[0044] Specific embodiment 2: This embodiment further describes the high-speed rolling bearing cage optical fiber speed measuring device with the inner and outer rings rotating at the same time as described in specific embodiment 1. In this embodiment, it also includes a power supply, which is used to supply the entire The test device is powered.

specific Embodiment approach 3

[0045] Specific implementation mode three: refer to image 3 and Figure 4 This embodiment is specifically described. This embodiment is a speed measurement method implemented by the high-speed rolling bearing cage optical fiber speed measurement device in which the inner and outer rings are simultaneously rotated as described in the specific embodiment 1. It includes the following steps:

[0046] The outer ring drag device 9 is used to drive the No. 1 shaft 14 to rotate, and the inner ring drag device 10 is used to drive the No. 2 shaft 15 to rotate.

[0047] The optical signal emitted by the optical fiber amplifier 3 is sent out through the optical fiber 4 at the transmitting end, and is scattered by the optical fiber 6 arranged on the outer ring installation tool 7 to form a stable light spot. The fiber 5 at the receiving end receives the optical signal of the fiber 5 at the receiving end through the fiber amplifier 3, and the generated pulse signal is amplified and proces...

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Abstract

The invention discloses a high-speed rolling bearing cage optical fiber speed measuring device and a speed measuring method in which the inner and outer rings rotate simultaneously, and relates to the fields of bearing speed measurement and operating state monitoring. The invention aims to solve the problem that the existing method for measuring the rotating speed of the bearing cage needs to change the structure of the bearing cage, and cannot measure the rotating speed of the rolling bearing cage in which the inner and outer rings rotate at the same time and cannot measure slippage. The outer ring drag device of the present invention drives the No. 1 shaft to rotate, and the inner ring drag device drives the No. 2 shaft to rotate. The No. 1 speed measuring device and the No. 2 speed measuring device respectively measure the speed of the outer ring drag device and the inner ring drag device. The optical signal generated by the optical fiber amplifier is sent out through the optical fiber at the transmitting end, scattered by the optical fiber arranged on the outer ring installation tool to form a stable spot, and received by the optical fiber at the receiving end through the rolling bearing, and the optical signal received by the optical fiber amplifier is amplified. Generate a pulse signal to the counter, and the output of the counter is connected to the input of the display. It can be used in condition monitoring of high-speed rolling bearings.

Description

technical field [0001] The invention relates to an optical fiber speed measuring device and a speed measuring method of a high-speed rolling bearing cage. It belongs to the field of bearing speed measurement and running state monitoring. Background technique [0002] Main shaft bearings of aero-engines often operate under high-speed and light-load conditions, and are typical representatives of rolling bearings used in extremely harsh and special conditions. Due to the high-speed and high-temperature working conditions, the failure mode of aviation bearings is different from that of conventional bearings. Among them, slippage is one of the most common reasons for the failure and failure of high-speed and light-load aviation bearings. The slip phenomenon that occurs during the operation of high-speed rolling bearings will cause wear and early failure of the bearing inner ring and rolling element surface, which will have a great impact on the normal operation of the rolling be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P3/36
Inventor 郑德志束坤王黎钦古乐赵小力
Owner HARBIN INST OF TECH
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