Two-shaft transmission with transversely arranged engine
1) Structure
As shown in Figure 3-25, the structure of the two-shaft transmission with transversely arranged engine , all forward gears and reverse gears are constant mesh helical gears, and lock-ring synchronizers are used for shifting.
Figure 3-25 Structural diagram of a two-shaft transmission with the engine transversely arranged
1-Output shaft 2-Input shaft 3-Fourth gear 4-Second gear 5-Second gear; 6- Reverse gear 7 - Reverse idler gear 8 - First gear 9 - Main reducer 10 - Differential oil seal 11 - Constant velocity universal joint shaft 12 - Differential planetary gear 13 - Differential half shaft gear 14 - Main reduction gear Driven gear 15-first and second gear synchronizer 16-third and fourth gear synchronizer
2) Power transmission route
(1) First gear
As shown in Figure 3-26, the first and second synchronizers mesh the first gear with the drive gear shaft of the main reducer and lock the transmission gear on the drive gear shaft of the main reducer. The first driving gear of the input shaft gear rotates clockwise, drives the first driven gear and the driving gear shaft of the main reducer counterclockwise, and drives the driven gear of the main reducer clockwise.
Figure 3-26 First gear power transmission route
(2) Second gear
When shifting from 1st gear to 2nd gear, 1st gear and 2nd gear The synchronizer disengages the 1st gear driven gear and engages the 2nd gear driven gear. The power transmission route is shown in Figure 3-27.
Figure 3-27 Second gear power transmission route
(3) Third gear
When the second gear synchronizer engagement sleeve returns to the neutral position, The third and fourth gear synchronizers lock to third gear on the final drive gear shaft. The power transmission route is shown in Figure 3-28.
Figure 3-28 Third gear power transmission route
(4) Fourth gear
Remove the third and fourth gear synchronizer sleeves from the third gear. Move to fourth gear and lock on the final drive gear shaft. The power transmission route is shown in Figure 3-29.
Figure 3-29 Fourth gear power transmission route
(5) Reverse gear
When the shift lever is in reverse gear, the reverse idler gear and The reverse driving gear meshes with the reverse driven gear. The reverse driven gear is also the synchronizer sleeve for first and second gears, and the synchronizer sleeve has straight teeth machined along its outer edge. When the reverse idler changes the direction of rotation of the transmission gear, the car can reverse. The power transmission route is shown in Figure 3-30.
Figure 3-30 Reverse power transmission route