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An ultra-miniature rotor dynamic balance test pendulum

An ultra-miniature rotor and roller technology, which is used in static/dynamic balance testing, machine/structural component testing, measuring devices, etc. light weight effect

Active Publication Date: 2018-02-23
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a dynamic balance test pendulum for ultra-miniature rotors, which is used to solve the problem in the prior art that the measurement of the dynamic unbalance of ultra-miniature rotors is easy to exceed the measurement range

Method used

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  • An ultra-miniature rotor dynamic balance test pendulum
  • An ultra-miniature rotor dynamic balance test pendulum
  • An ultra-miniature rotor dynamic balance test pendulum

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Experimental program
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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0030] Such as Figure 2-4 As shown, the ultra-miniature rotor dynamic balance test pendulum of the present invention includes: a roller stop 1, a roller support seat 2, a MEMS circuit board that is a roller support plate 3, a MEMS sensor wire 4, a MEMS sensor 5, and a pendulum elastic Strut 6, pendulum base 7, stop fixed rod positioning bolt 8, stop fixed rod 9, roller stop fixed nut 10.

[0031] Wherein, the swing frame base 7 is fixed on the test system plane, and its upper surface is provided with 4 mounting holes for installing the swing frame elastic support rod 6 and 1 positioning hole for fixing the L-shaped stop fixing rod 9, 4 The bottom of the elastic support rod 6 of the root swing frame is adhered and installed on the base 7 of the swing frame. The MEMS circuit board 3 is welded to the top of the elastic strut 6 by means of electric welding as ...

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Abstract

The invention relates to an ultra-miniature rotor dynamic balance test pendulum, which includes a support platform, on which a clamping structure for clamping the rollers to be tested is arranged, and the support platform is supported on an elastic support member; An acceleration sensor is provided, and the acceleration sensor is used for connecting with the vibration signal measurement system through wires. The ultra-miniature rotor dynamic unbalance is measured by the acceleration sensor arranged on the support platform, so that the measurement range is wider than that of the laser displacement sensor, and the vibration amplitude will not be too large to exceed the measurement range during the measurement process.

Description

technical field [0001] The invention belongs to the technical field of mechanical dynamics and vibration testing, and in particular relates to an ultra-miniature rotor dynamic balance testing pendulum. Background technique [0002] According to statistics, under normal working conditions, the main cause of failure of high-speed rolling bearings is no longer fatigue spalling, but surface damage and corrosion, which account for more than 70% of the total failure rate. Common faults mainly include high-speed light-load skidding, scratches, high-temperature jamming, cage fracture, wear, etc. The above problems cannot be effectively improved by improving the accuracy of bearing parts such as roundness, waviness and roughness. [0003] The diameter of the miniature cylindrical roller in the high-speed precision rolling bearing is ≤10mm, the length-to-diameter ratio is close to 1:1, the mass is 3-5g, the unbalanced mass is ≤10mg, the surface is smooth and the drive is difficult. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M1/16
Inventor 李济顺隋新马喜强崔咏马伟薛玉君司东宏杨芳余永健李丽红韩红彪师树谦方靖文
Owner HENAN UNIV OF SCI & TECH