Hydrostatically power-splitting transmission

摘要

A hydrostatically power-splitting transmission (10), particularly for agricultural and construction equipment, comprises at least two hydrostats (H2), which are hydraulically connected to each other and operate as pumps or as motors, wherein at least one of the hydrostats (H2) can be adjusted or pivoted by means of a controller (16, 20, 21; SK1, . . . SK4), mechanical coupling means (K1, K2; Z1, . . . , Z12), which couple the hydrostats (H1, H2) to an inner drive shaft (W1) and an inner driven shaft (W7), a housing (14, 31) comprising a cover (14) and a housing bottom part (31), wherein the hydrostats (H1, H2), the inner drive and driven shafts (W1, W7), and the mechanical coupling means (Z7, Z9) are disposed and attached on the bottom of the cover (14), and in the lower housing part an outer drive shaft accessible from the outside and a driven shaft are supported, which are operatively connected to the inner drive shaft or driven shaft when the housing is assembled. In such a transmission, a compact design, while simultaneously providing easy accessibility and high flexibility in the adaptation to different vehicles, is achieved in that the controller (16, 20, 21; SK1, . . . SK4) for adjustment or pivoting of the at least one hydrostat (H2) is disposed on the top of the cover (14) and acts upon the at least one hydrostat (H2) through the cover (14).

主权项

1. A hydrostatically power-splitting transmission (10, 10′) for vehicles, comprising:
at least two hydrostats (H1, H2) which are connected hydraulically to one another and operate as a pump or as a motor, at least one of the hydrostats (H1, H2) being adjustable or pivotable by means of a control (16, 20, 21; SK1, . . . , SK4); mechanical coupling means (12, K1, . . . , K4; Z1, . . . , Z12) which couple the hydrostats (H1, H2) to an inner drive shaft (W1) and to an inner take-off shaft (W7); a housing (14, 31) comprising a cover (14) and a housing lower part (31); the hydrostats (H1, H2), the inner drive and take-off shafts (W1, W7) and the mechanical coupling means (12, K1, . . . , K4; Z1, . . . , Z12) arranged and fastened on the underside of the cover (14); and an outer drive shaft (40) and take-off shaft (39) mounted in the housing lower part (31) and with the housing (14, 31) assembled, are operatively connected to the inner drive shaft (W1) or take-off shaft (W7); wherein the control (16, 20, 21; SK1, . . . , SK4) for adjusting or pivoting the at least one hydrostat (H1, H2) is arranged on the top side of the cover (14) and acts upon the at least one hydrostat (H1, H2) through the cover (14).