一.滑动轴承的特性目前,农用小型柴油机所采用的滑动轴承种类和特性如表1所列。可以看出,从小型轻量、耐久性及烧伤性的提高方面考虑,多采用铜基或铝基合金双层或三层薄壁轴承。农用柴油机(2000—3000转/分)轴承的比压,主轴承、连杆轴承为300—450公斤/厘米~2,活塞销轴承为550—650公斤/厘米~2。最近由于制造厂对滑动轴承做了大量改进,故使得轴承的许用最高比压可提高5—10%。 I. Characteristics of Plain Bearings Currently, the types and characteristics of plain bearings used in agricultural small diesel engines are listed in Table 1. It can be seen from the small size, light weight, durability and burns to improve the consideration of the use of more copper or aluminum alloy double or three thin-walled bearings. Agricultural diesel engine (2000-3000 r / min) bearing pressure, the main bearing, connecting rod bearing 300-450 kg / cm ~ 2, piston pin bearing 550-650 kg / cm ~ Recently, due to a large number of plain bearings made a lot of improvements to the factory, it allows the maximum permissible bearing pressure can be increased 5-10%.