CN-121975563-A - Ultra-sliding system and application thereof

Abstract

The invention discloses an ultra-sliding system and application thereof, relating to the technical field of tribology, comprising a friction pair, a lubricating medium and a counter-grinding pair, the friction pair comprises polyaryletherketone, the lubricating medium comprises ethylene glycol, and the pair grinding pair comprises silicon nitride and/or silicon carbide. The invention takes polyaryletherketone as a friction pair, glycol as a lubricating medium, silicon nitride and/or silicon carbide as a lubricating system formed by a counter-friction pair, has an average friction coefficient (0.0087) as low as 10 ‑3 orders of magnitude, realizes a stable super-slip phenomenon, is beneficial to reducing energy loss, improving operation accuracy and stability and prolonging the service life of mechanical parts, does not need to carry out pre-running-in treatment in advance when in use, has a friction coefficient which rapidly enters a stable state in the friction process, does not have any abnormal fluctuation or rise along with the increase of friction time, and shows excellent operation stability.

Inventors

• ZHAN SHENGPENG
• HUANG SULING
• DUAN HAITAO
• JIA DAN
• YANG TIAN
• MA LIXIN
• MA JINMING

Assignees

• 中国机械总院集团武汉材料保护研究所有限公司

Dates

Publication Date

20260505

Application Date

20260106

Claims (10)

1. 1. The ultra-slip system is characterized by comprising a friction pair, a lubricating medium and a counter-grinding pair, wherein the friction pair comprises polyaryletherketone, the lubricating medium comprises ethylene glycol, and the counter-grinding pair comprises silicon nitride and/or silicon carbide.
2. 2. A super slip system as claimed in claim 1, wherein the polyaryletherketone comprises one or more of polyetheretherketone, polyetherketone, polyetherketoneketone, polyetheretherketone and polyetherketoneketone.
3. 3. A super slip system as claimed in claim 1 wherein said friction pair comprises polyether ether ketone.
4. 4. The ultra-smooth system of claim 1, wherein said pair of grinding pairs comprises silicon nitride.
5. 5. Use of an ultra-slip system according to any one of claims 1-4 in a sliding or rotating part of a high precision machine.
6. 6. The method according to claim 5, wherein the friction pair and the counter pair are used as auxiliary materials of mechanical parts, and the lubricating medium is used as a lubricant of the mechanical parts.
7. 7. The method according to claim 5, wherein the friction pattern in the sliding or rotating part of the high-precision machine comprises point-to-surface friction and/or surface-to-surface friction.
8. 8. The method according to claim 5, wherein the linear velocity of the super-slip system is 80-150mm/s.
9. 9. The method according to claim 5, wherein the working load of the super-slip system is 40-80N.
10. 10. The method according to claim 5, wherein the working temperature of the ultra-slip system is 10-30 ℃.

Description

Ultra-sliding system and application thereof Technical Field The invention relates to the technical field of tribology, in particular to an ultra-sliding system and application thereof. Background Friction and wear are widely applied to various mechanical systems, and the construction of a lubrication system in a mechanical system is particularly important to reduce friction energy consumption, material wear and friction noise and realize precise control of the mechanical system. In a lubricating system, the friction performance is greatly influenced by a friction pair, a grinding pair and a lubricating medium, and the stability of a friction coefficient and the height of the friction coefficient in the lubricating system are key indexes for measuring the friction performance, the precision and the service life of the system. At present, materials such as polyaryletherketone, polyimide, silicon nitride and the like are widely used as friction pairs/pair grinding pairs in the fields of friction of precision machinery, instruments and meters and the like due to the advantages of self lubrication, corrosion resistance and the like, and lubricating media are of various types such as esters, alcohols and the like, but the difference of a lubricating system consisting of friction pairs, lubricating media and pair grinding pairs of different materials is remarkable and difficult to predict. Especially, the polyaryletherketone material is widely applied to tribology materials, but the friction coefficient of a lubricating system consisting of the polyaryletherketone material is limited in stability and higher in friction coefficient, so that the application of the polyaryletherketone material in mechanical systems with high requirements on friction coefficient and stability is limited. Disclosure of Invention In view of the above-mentioned shortcomings of the related art, the present invention is directed to an ultra-sliding system and application thereof. On one hand, the ultra-sliding system provided by the invention adopts the following technical scheme: an ultra-slip system comprising a friction pair comprising a polyaryletherketone, a lubricating medium comprising ethylene glycol, and a counter-friction pair comprising silicon nitride and/or silicon carbide. Preferably, the polyaryletherketone comprises one or more of polyetheretherketone, polyetherketone, polyetherketoneketone, polyetheretherketone ketone and polyetheretherketone ketone. Preferably, the friction pair comprises polyetheretherketone. Preferably, the pair of grinding pairs comprises silicon nitride. Preferably, the friction pair is polyether ether ketone, the lubricating medium is ethylene glycol, and the counter pair is silicon nitride. In another aspect, the present invention provides for the use of an ultra-slip system in a sliding or rotating component of a high precision machine. Preferably, the friction pair and the counter pair are used as auxiliary materials of mechanical parts, and the lubricating medium is used as a lubricant of the mechanical parts. Preferably, the form of friction in the sliding or rotating parts of the high precision machine comprises point-to-face friction and/or face-to-face friction. Preferably, the linear speed of the super-slip system is 80-150mm/s. Preferably, the linear speed of the super-slip system is 112mm/s. Preferably, the working load of the super-slip system is 40-80N. Preferably, the working load of the super slip system is 60N. Preferably, the working temperature of the ultra-slip system is 10-30 ℃. Preferably, the working temperature of the ultra-slip system is 25 ℃. In summary, the present invention includes at least one of the following beneficial technical effects: The lubricating system is composed of the polyaryletherketone as a friction pair, ethylene glycol as a lubricating medium and silicon nitride and/or silicon carbide as a counter-friction pair, has an average friction coefficient (0.0087) as low as 10 -3 orders of magnitude, realizes a stable super-slip phenomenon, is beneficial to reducing energy loss, improving operation accuracy and stability and prolonging the service life of mechanical parts, does not need to be subjected to pre-running-in treatment in advance during use, has a friction coefficient rapidly entering a stable state along with the increase of friction time, and has no abnormal fluctuation or rise, thereby exhibiting excellent operation stability. Drawings FIG. 1 is a graph of coefficient of friction versus time for the ultra-slip system of example 1 of the present invention; FIG. 2 is a graph of coefficient of friction versus time for a lubrication system of comparative example 1 of the present invention; FIG. 3 is a graph of coefficient of friction versus time for a lubrication system of comparative example 2 of the present invention; FIG. 4 is a graph showing the coefficient of friction versus time for the lubrication system of comparative example 3 of the present i