8+8 keeps off position gearbox

The utility model discloses a 8+8 keeps off position gearbox, including providing four main speed change mechanism that keep off the position, the height keeps off speed change mechanism and keeps off speed change mechanism around and, main speed change mechanism adopts synchronous ware to shift. The utility model discloses it is synchronous promptly to make the two part rotational speeds that will hang the knot reach unanimity in the effect of in -process through frictional force of shifting gears, and the component of puting into gear does not have the entering of impact meshing, and synchronous ware makes and shifts gears easily, and the increment face of shifting gears does not receive the damage, effectively lengthens the life of gearbox. 本实用新型公开了种8+8挡位变速箱,包括提供四个挡位的主变速机构，高低挡变速机构以及前后挡变速机构，所述主变速机构采用同步器换挡。本实用新型在换挡过程中通过摩擦力的作用使要挂结的两零件转速达到致即同步，挂挡元件无冲击进入啮合,同步器使换挡轻易，换挡齿端面不受损伤,有效延长变速箱的使用寿命。