阅读说明：本技术 一种低摩擦系数的轴承材料 (Bearing material with low friction coefficient ) 是由 李进 于 2018-08-03 设计创作，主要内容包括：一种低摩擦系数的轴承材料,属于机械材料技术领域,由如下重量百分比的原料组成：超高分子量聚乙烯10～30%、碳纤维10～20%、丁腈橡胶10～20%、增塑剂1～2%、自润滑剂5～10%、氧化锌0.5～5%、硬脂酸0.1～1%、交联剂0.1～3%、抗氧剂0.2～3%、改性树脂5～10%、邻苯二甲酸二仲辛酯0.5～1%、发泡剂1～2.5%、阻燃剂0.2～0.8%。本发明组分新颖,在保持超高分子量聚乙烯自润滑性、耐磨性能的优点的同时,通过引入自润滑剂、碳纤维等组份进一步提高了耐磨性能,通过增加阻燃剂和抗氧剂组份,进一步提高了轴承的耐热性能,提高了轴承的使用寿命,进一步满足了轴承的高要求场合。(A bearing material with low friction coefficient belongs to the technical field of mechanical materials and comprises the following raw materials in percentage by weight: 10-30% of ultrahigh molecular weight polyethylene, 10-20% of carbon fiber, 10-20% of nitrile rubber, 1-2% of plasticizer, 5-10% of self-lubricating agent, 0.5-5% of zinc oxide, 0.1-1% of stearic acid, 0.1-3% of cross-linking agent, 0.2-3% of antioxidant, 5-10% of modified resin, 0.5-1% of di-sec-octyl phthalate, 1-2.5% of foaming agent and 0.2-0.8% of flame retardant. The invention has novel components, maintains the advantages of self-lubricating property and wear resistance of the ultra-high molecular weight polyethylene, further improves the wear resistance by introducing the components such as self-lubricating agent, carbon fiber and the like, further improves the heat resistance of the bearing by adding the components of flame retardant and antioxidant, prolongs the service life of the bearing, and further meets the high-requirement occasions of the bearing.)

1. The bearing material with the low friction coefficient is characterized by comprising the following raw materials in percentage by weight: 10-30% of ultrahigh molecular weight polyethylene, 10-20% of carbon fiber, 10-20% of nitrile rubber, 1-2% of plasticizer, 5-10% of self-lubricating agent, 0.5-5% of zinc oxide, 0.1-1% of stearic acid, 0.1-3% of cross-linking agent, 0.2-3% of antioxidant, 5-10% of modified resin, 0.5-1% of di-sec-octyl phthalate, 1-2.5% of foaming agent and 0.2-0.8% of flame retardant.

2. A low coefficient of friction bearing material as claimed in claim 1, wherein said low coefficient of friction bearing material is comprised of the following principle in weight percent: 15-30% of ultrahigh molecular weight polyethylene, 10-15% of carbon fiber, 10-15% of nitrile rubber, 1-1.5% of plasticizer, 5-8% of self-lubricating agent, 0.5-3.5% of zinc oxide, 0.1-0.8% of stearic acid, 0.1-2.5% of cross-linking agent, 0.2-2.5% of antioxidant, 5-8% of modified resin, 0.5-1% of di-sec-octyl phthalate, 1-1.2% of foaming agent and 0.2-0.8% of flame retardant.

3. A low coefficient of friction bearing material as claimed in claim 1, wherein said low coefficient of friction bearing material is comprised of the following principle in weight percent: 15% of ultrahigh molecular weight polyethylene, 10% of carbon fiber, 10% of nitrile rubber, 1.5% of plasticizer, 8% of self-lubricating agent, 0.5% of zinc oxide, 0.1% of stearic acid, 0.1% of cross-linking agent, 0.2% of antioxidant, 5% of modified resin, 0.5% of di-sec-octyl phthalate, 1% of foaming agent and 0.2% of flame retardant.

4. A low coefficient of friction bearing material as claimed in any one of claims 1 to 3 wherein: the foaming agent is an AC foaming agent.

5. A low coefficient of friction bearing material as claimed in any one of claims 1 to 3 wherein: the di-sec-octyl phthalate is a plasticizer.

6. A low coefficient of friction bearing material as claimed in any one of claims 1 to 3 wherein: the nitrile rubber is common nitrile rubber, hydrogenated nitrile rubber or carboxyl nitrile rubber.

7. A low coefficient of friction bearing material as claimed in any one of claims 1 to 3 wherein: the self-lubricating agent is graphite.

Technical Field

The invention belongs to the technical field of mechanical materials, relates to a bearing material, and particularly relates to a bearing material with a low friction coefficient.

Background

The bearing is a component for fixing and reducing the load friction coefficient in the mechanical transmission process. It can also be said that the member for reducing the friction coefficient during power transmission and keeping the center position of the shaft fixed when the other members are moved relative to each other on the shaft. The bearing is a lightweight part in modern mechanical equipment. Its main function is to support the mechanical rotating body to reduce the friction coefficient of mechanical load of equipment in the transmission process. The bearings can be classified into rolling bearings and sliding bearings according to the frictional properties of the moving elements.

The marine bearing mainly has two modes of water lubrication and oil lubrication, wherein the water lubrication bearing has the advantages of no pollution, low energy consumption, low friction coefficient, low price and the like compared with the oil lubrication bearing, so that the marine bearing is widely applied to ships. The water-lubricated bearing consists of a bearing outer sleeve and a bearing surface layer, wherein the bearing outer sleeve is mostly prepared from corrosion-resistant brass, and the bearing surface layer is mostly prepared from a high polymer material. The rubber and the polyurethane have excellent performance and are widely applied, but the friction performance of the material is extremely deteriorated under dry friction working conditions such as water shortage and the like in the actual use process, so that the phenomena of shaft seizure and bearing scorching are easily caused. Therefore, the material for applying the bearing needs to have self-lubricating property so as to adapt to the dry friction working condition.

Disclosure of Invention

Aiming at solving the defects that the friction coefficient of a bearing prepared by the traditional bearing material is large, the temperature is easy to rise after the bearing is operated at high speed, lubricating grease is melted, the wear resistance is further reduced, the service life of the bearing is influenced and the like, the invention provides the bearing material with low friction coefficient, and the bearing can obtain higher wear resistance by changing the components of the bearing material and can meet the use requirements of high-requirement occasions.

The technical scheme of the invention is as follows: the bearing material with the low friction coefficient is characterized by comprising the following raw materials in percentage by weight: 10-30% of ultrahigh molecular weight polyethylene, 10-20% of carbon fiber, 10-20% of nitrile rubber, 1-2% of plasticizer, 5-10% of self-lubricating agent, 0.5-5% of zinc oxide, 0.1-1% of stearic acid, 0.1-3% of cross-linking agent, 0.2-3% of antioxidant, 5-10% of modified resin, 0.5-1% of di-sec-octyl phthalate, 1-2.5% of foaming agent and 0.2-0.8% of flame retardant.

The bearing material with the low friction coefficient is prepared from the following principles in percentage by weight: 15-30% of ultrahigh molecular weight polyethylene, 10-15% of carbon fiber, 10-15% of nitrile rubber, 1-1.5% of plasticizer, 5-8% of self-lubricating agent, 0.5-3.5% of zinc oxide, 0.1-0.8% of stearic acid, 0.1-2.5% of cross-linking agent, 0.2-2.5% of antioxidant, 5-8% of modified resin, 0.5-1% of di-sec-octyl phthalate, 1-1.2% of foaming agent and 0.2-0.8% of flame retardant.

The bearing material with the low friction coefficient is prepared from the following principles in percentage by weight: 15% of ultrahigh molecular weight polyethylene, 10% of carbon fiber, 10% of nitrile rubber, 1.5% of plasticizer, 8% of self-lubricating agent, 0.5% of zinc oxide, 0.1% of stearic acid, 0.1% of cross-linking agent, 0.2% of antioxidant, 5% of modified resin, 0.5% of di-sec-octyl phthalate, 1% of foaming agent and 0.2% of flame retardant.

The foaming agent is an AC foaming agent.

Di-sec-octyl phthalate is used as a plasticizer.

The nitrile rubber is common nitrile rubber, hydrogenated nitrile rubber or carboxyl nitrile rubber.

The self-lubricating agent is graphite.

The invention has the beneficial effects that: the bearing material with the low friction coefficient is novel in component, maintains the advantages of self-lubricating property and wear resistance of the ultra-high molecular weight polyethylene, further improves the wear resistance by introducing the components such as the self-lubricating agent and the carbon fiber, further improves the heat resistance of the bearing by adding the components of the flame retardant and the antioxidant, prolongs the service life of the bearing, and further meets the high-requirement occasions of the bearing.

Detailed Description

The invention is further illustrated by the following examples:

a bearing material with low friction coefficient is composed of the following raw materials in percentage by weight: 10-30% of ultrahigh molecular weight polyethylene, 10-20% of carbon fiber, 10-20% of nitrile rubber, 1-2% of plasticizer, 5-10% of self-lubricating agent, 0.5-5% of zinc oxide, 0.1-1% of stearic acid, 0.1-3% of cross-linking agent, 0.2-3% of antioxidant, 5-10% of modified resin, 0.5-1% of di-sec-octyl phthalate, 1-2.5% of foaming agent and 0.2-0.8% of flame retardant.

Further, the bearing material with low friction coefficient is composed of the following principles in percentage by weight: 15-30% of ultrahigh molecular weight polyethylene, 10-15% of carbon fiber, 10-15% of nitrile rubber, 1-1.5% of plasticizer, 5-8% of self-lubricating agent, 0.5-3.5% of zinc oxide, 0.1-0.8% of stearic acid, 0.1-2.5% of cross-linking agent, 0.2-2.5% of antioxidant, 5-8% of modified resin, 0.5-1% of di-sec-octyl phthalate, 1-1.2% of foaming agent and 0.2-0.8% of flame retardant.

Further, the bearing material with low friction coefficient is composed of the following principles in percentage by weight: 15% of ultrahigh molecular weight polyethylene, 10% of carbon fiber, 10% of nitrile rubber, 1.5% of plasticizer, 8% of self-lubricating agent, 0.5% of zinc oxide, 0.1% of stearic acid, 0.1% of cross-linking agent, 0.2% of antioxidant, 5% of modified resin, 0.5% of di-sec-octyl phthalate, 1% of foaming agent and 0.2% of flame retardant.

Further, the blowing agent is an AC blowing agent.

Furthermore, di-sec-octyl phthalate is used as a plasticizer.

Further, the nitrile rubber is common nitrile rubber, hydrogenated nitrile rubber or carboxyl nitrile rubber.

Further, the self-lubricant is graphite.

The invention has novel components, maintains the advantages of self-lubricating property and wear resistance of the ultra-high molecular weight polyethylene, further improves the wear resistance by introducing the components such as self-lubricating agent, carbon fiber and the like, further improves the heat resistance of the bearing by adding the components of flame retardant and antioxidant, prolongs the service life of the bearing, and further meets the high-requirement occasions of the bearing.