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High-speed rotor drop rub protection self-lubricating support method

A technology of high-speed rotors and supporting methods, which is applied in the direction of lubricating compositions, bearings, bearing components, etc., can solve problems such as oxidation failure of lubricating coatings, and achieve the effects of reducing friction, reducing wear rate, and reducing wear

Inactive Publication Date: 2012-05-02
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the huge frictional heat generated by the high-speed rotor drop can cause the oxidation of the lubricating coating to fail

Method used

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  • High-speed rotor drop rub protection self-lubricating support method
  • High-speed rotor drop rub protection self-lubricating support method
  • High-speed rotor drop rub protection self-lubricating support method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Step 1. Preparation of self-lubricating material

[0027] Grinding 50% epoxy resin, 20% molybdenum disulfide and 5% graphite for 30 min, adding 7.5% polyamide and 12.5% ​​DDM for 30 min, and finally adding 5% butanone Grind further to ensure that the components are mixed evenly;

[0028] Step 2. Preparation of laminated substrate

[0029] (1) Self-lubricating laminated surface

[0030] Put the first circular silicon steel sheet 3 with an outer diameter of 60mm, inner diameter of 35mm, and thickness of 0.35mm, and the second annular silicon steel sheet 4 of an outer diameter of 60mm, inner diameter of 32mm, and thickness of 0.35mm, into alcohol and acetone in sequence, and ultrasonically clean them for 10 minutes each to remove For surface oil and other attachments, dry in a vacuum oven at 120°C for 2 hours, and use a spray gun to evenly spray the self-lubricating material on both sides of the circular silicon steel sheet 3 and the circular silicon steel sheet 4 at 0.2...

Embodiment 2

[0033] Step 1. Preparation of self-lubricating material

[0034]Grinding 50% epoxy resin, 20% molybdenum disulfide and 5% graphite for 30 min, then adding 7.5% polyamide and 12.5% ​​DDM for 30 min, and finally adding 5% diluent The ketone is further ground to ensure that the components are mixed evenly;

[0035] Step 2. Preparation of laminated substrate

[0036] With textured surface

[0037] Process the texture at the inner edge of the ring sheet with a thickness of 0.35 mm, that is, process the first silicon steel sheet 6 with an outer diameter of 60 mm and an inner diameter of 35 mm; then process the second silicon steel sheet 7 with a thickness of 0.35 mm into The outer diameter is 60mm, the inner diameter is 35mm, and the inner edge is processed with a 1×1mm rectangular texture with a uniform distribution angle of 18°. The first silicon steel sheet 6 and the second silicon steel sheet 7 are placed in alcohol and acetone in sequence, and ultrasonic cleaning is performed...

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Abstract

The invention discloses a high-speed rotor drop rub protection self-lubricating support method, which comprises the following steps of: preparing a self-lubricating material; adhering a laminated matrix; and filling the self-lubricating material in grooves or array micro-pits of the laminated matrix to obtain a self-lubricating support. Aiming at the drop rub process of a high-speed bearing rotor, an embedded self-lubricating surface is formed, the surface of the support is self-lubricated, and a flexible self-lubricating material can relieve vortex motion brought by the impact to a support bearing during drop of the rotor, and protects the surface of the rotor.

Description

technical field [0001] The invention relates to the technical field of rotor drop and friction protection, in particular to a self-lubricating support method for high-speed rotor drop and friction protection. Background technique [0002] The development of modern machinery in the direction of high parameters is inseparable from the support of advanced supporting components. Therefore, active electromagnetic bearing (AMB) technology has been developed rapidly. However, the anti-shock ability of the active electromagnetic bearing is weak. In the case of instability of the power system such as power failure or bearing overload, the rotor will fall due to failure and rub against the rotor shaft and the bearing. Excessive impact load induces self-excited vibration of the rotor system, and the rotor and bearing surfaces are damaged due to friction under the action of excessive drop speed and drop load. Therefore, it is necessary to protect the electromagnetic bearing system. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C32/04F16C33/00C10M103/00
Inventor 张东亚董光能毛军红
Owner XI AN JIAOTONG UNIV