| 摘要 |
The housing (11) contains a pivot mounted input shaft (S1) which has an input part (14) and input cog wheel (GF1). A change-gear section has a change gear auxiliary shaft (S2,3,4) rotarily mounted in the housing which contains a rotarily mounted output shaft (S6) with output part (18). A group gear section has at least one group gear auxiliary shaft (S5,7) rotarily mounted in the housing. Each auxiliary shaft has at least one fixed cog wheel (GF2-7) and a cog wheel (GR1,2,GRR,GRA,GRBB,GRBA,GRC,GRH,GRM,GRL) fixed on the corresponding shaft by means of a coupling (C1,2,CR,CA,CB,CC,CH,CM,CL). The shafts, cog wheels and couplings combine to produce different change gear transmissions and speeds. The low and high speed groups include the lowest and highest gear output speeds respectively. The middle speed group is between the two. |
