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        Two types of transmission machinery
        發布日期:2014-11-21 
        Transmission machinery What does that mean? The first is based on a literal understanding of a mechanical, followed with a mechanical transmission function, then what is driving it? Transmission is the use of mechanical power transmission and motion transfer. Mechanical transmission in mechanical engineering is widely used in many forms, there are two ways.
         
        Since it is a mechanical transmission of power, then the friction force is one of them. By friction between mechanical power transmission and motion friction drive, including belt drive, rope drive and friction wheel drive and so on. Easy to implement friction drive CVT, spiral bevel gear reducer large can adapt spacing larger drive shaft occasions, can also play a role overload slip cushioning and protection gear, but this is generally not used for power transmission occasion , parallel shaft helical gear reducer can not guarantee the exact ratio.
         
        Another is the engagement between forces generated. Gear reducer active member and follower engagement engagement or by passing middleware meshing transmission power or movement, including gear, chain drive, screw drive and harmonic drive and so on. Meshing transmission can be used in the case of high-power transmission more accurate, but the general requirements for manufacturing high precision and fitting accuracy.

         

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        偷看撒尿PISSINGVIDEOS露脸,PISSING厕所撒尿1WC女厕所,偷拍粉嫩25位美女厕所图片