Two-section hydraulic and mechanical compound stepless transmission device
A technology of continuously variable transmission and hydraulic machinery, which is applied to transmission devices, mechanical equipment, fluid transmission devices, etc., and can solve the problems of large mass, high cost, large mass and volume, etc.
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[0018] figure 1It is a structural schematic diagram of the present invention; as shown in the figure, the two-stage hydromechanical compound continuously variable transmission device of this embodiment includes a power input shaft 7, a power output shaft 28 and a power transmission for the power output shaft 28 to the variable speed transmission assembly of the power output shaft 28; the variable transmission assembly includes a variable hydraulic pump 3, a hydraulic motor 4 that converts the hydraulic pressure energy output by the variable hydraulic pump 3 into rotational power, a first planetary gear mechanism and a second Planetary gear mechanism; the first planetary gear mechanism can be used as a power distribution mechanism to distribute the power of the power input shaft 7 or as a speed reduction mechanism to reduce the power output of the power input shaft 7; when the first planetary gear mechanism is used as a power distribution mechanism, it can The power distributio...
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