The design of a new differentialchange over mechanism is introduced. And its main function and structural characteristics are analysed.
介绍了一种新型差速转向机构的设计，对其主要功能、结构和特点进行了分析。
2
In this paper calculation formulas of differentialchange gear raito and index change gear raito for Oerlikon and Klingelnerg bevel gear generating machines are derived.
导出奥利康和克林根贝尔格锥齿轮铣齿机差速挂轮比和分齿挂轮比计算通式；
3
Particle filters should include (or pressure differential gauge display), so as to explain when should change the filter medium, when filter service life to also shall be replaced.