Power branching gearbox has switching device between hydrostatic power branch, summation gearbox for selective connection of hydrostatic power branch to summation gearbox

摘要

The device has mechanical and hydrostatic power branches combined into a summation gearbox with a common drive shaft. The summation gearbox drive is connected to the power branching gearbox output via switchable planetary gears. A switching device between the hydrostatic power branch and summation gearbox enables selective connection of the hydrostatic power branch to the summation gearbox via a first or second reduction gear. The device has a mechanical (18) and a hydrostatic (17) power branch combined into a summation gearbox (19) and driven via a common drive shaft. The drive for the summation gearbox is connected to the power branching gearbox output (25) via switchable planetary gears (26,27. Four driving ranges are possible in one direction. A switching device (21) is arranged between the hydrostatic power branch and the summation gearbox for selective connection of the hydrostatic power branch to the summation gearbox via a first or second reduction gear (22,23).