Chapter 2 Transmission Section 3 Synchronizer 1.The Shift Process of Transmissions Without Synchronizers 1.1 Shifting Slide Gear 10 Figure 2-5 Transmission driving mechanism diagram of Shanghai-50 tractors 1.Ist shaft 2.Sliding gears of 2rd and 3nd gear 3.2nd shaft 4.Sliding gears of Ist and reverse gear 5.Sun gear 6.Shift sleeve 7.Planetary carrier 8.Annular gear 9.Driving gear of Ist gear 10.Back gear 11.Driving gear of 2nd gear 12.Intermediate shaft 13.Constant mesh gear of intermediate shaft 14.Constant mesh gear of2nd shaft 15.Gearing shaft 16.Planetary gear 机械电子工程学原 Automobile and Tractor Northwest A&F UniversityAutomobile and Tractor Northwest A&F University Chapter 2 Transmission 1. The Shift Process of Transmissions Without Synchronizers 1.1 Shifting Slide Gear Figure 2-5 Transmission driving mechanism diagram of Shanghai-50 tractors 1.1st shaft 2. Sliding gears of 2rd and 3nd gear 3. 2nd shaft 4. Sliding gears of 1st and reverse gear 5. Sun gear 6. Shift sleeve 7. Planetary carrier 8. Annular gear 9. Driving gear of 1st gear 10. Back gear 11. Driving gear of 2nd gear 12. Intermediate shaft 13. Constant mesh gear of intermediate shaft 14. Constant mesh gear of 2nd shaft 15. Gearing shaft 16. Planetary gear Section 3 Synchronizer