The design of the main transmission requirements
1. Spindle of milling machine must have enough speed range and speed, to meet the requirements of actual use
2. The main motor and drive mechanism must supply and deliver enough power and torque, and has higher transmission efficiency
3. The implementation must have enough accuracy, stiffness, earthquake and less than permission limit of thermal deformation and temperature rise
4. The noise should be within the scope of the permit
5. Operation to lightweight flexible, fast, safe and reliable, and to facilitate adjustment and maintenance
6. Simple structure, good lubrication and sealing, easy processing and assembly, the cost is low.