| 摘要 |
transport engineering. SUBSTANCE: proposed gearbox has housing 1, coaxially mounted input shaft 2 and output shaft 3 and countershaft 4 installed in parallel to input and output shafts. Input shaft gear 5 is fixed on shaft. Three countershaft gears 7, 8, 9 fixed on countershaft are in meshing with gears 10, 11, 12 of output shaft. Reverse gear 13 secured on countershaft 4 is meshing with gear 16 of output shaft 3 through additional reverse gear or cluster of two reverse gears 14, 15. Two three-position shifter sleeves b, C are installed between output shaft gears. One member 17 of twin sleeve is arranged on gear 10 of output shaft 3. Other member 18 is located on gear 6 freely fitted on countershaft 4. Members are connected by fork 19. It is permitted to install one member on input shaft gear and other member, on countershaft gear. EFFECT: simplified design of gearbox, reduced metal usage. 2 dwg
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