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齿轮减速机齿轮传动特点及齿轮油工作条件

齿轮减速机齿轮传动特点及齿轮油工作条件

Characteristics of gear transmission and working conditions of gear oil

(l)齿轮传动效率高,一般圆柱齿轮传动效率可达98%,与轴承相比,齿轮的当量曲线半径小,油楔条件差。

(L) the high efficiency of gear transmission, the general cylindrical gear transmission efficiency of up to 98%, compared with the bearing, the equivalent radius of the gear curve is small, poor oil wedge conditions.

(2)齿轮传动齿与齿间是线接触,因此,接触面积小,单位接触压力高。一般汽车齿轮单位接触压力可达2000-3000MPa,而双曲线齿轮更高,可达3000一4000MPa。

(2) the tooth contact between the gear and the gear teeth, therefore, the contact area is small, the unit contact pressure is high. General automotive gear unit contact pressure up to 2000-3000MPa, while the hyperbolic gear is higher, up to 3000 4000MPa.

(3)齿轮减速机传动不仅有线接触,还有滑动接触,特别是双曲线齿轮,轮齿间其有较高的相对滑动速度,一般可达8m/o左右。这在高速大负荷条件下,会使油膜变薄甚至局部破裂,导致摩擦与磨损加剧,甚至引起擦伤和咬合。

(3) the gear transmission is not only wired contact, but also the sliding contact, especially the hyperbolic gear, the gear has a relatively high sliding speed, generally up to about 8m/o. Under the condition of high speed and heavy load, the oil film becomes thinner and even partially ruptured, which leads to the increase of friction and wear, and even causes abrasions and occlusion.

(4)齿轮油的工作温度一般较内燃机油低,在很大程度上随环境温度变化而变化,车辆齿轮油油温一般不高于100’C。现代轿车采用双曲线齿轮,因其轴线偏置量较大,在车速高时会使齿轮轮面问的相对滑动速度很高,使油温达到160’C一180’C。

(4) gear oil temperature is generally relatively low engine oil, to a large extent with the ambient temperature changes, the vehicle gear oil temperature is not higher than 100 C. Modern cars use hypoid gear, because of its large amount of axis offset, relative sliding speed of the high speed makes the gear wheel surface q is high, the temperature of the oil reached 160 'C 180' C.


日期:2016/12/28 14:24:44
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