A MECHANIC PRESSURE-HYDRAULIC PRESSURE COMBINED TRANSMISSION MECHANISM AND A MECHANIC POWER-HYDRAULIC POWER COMBINED TRANSMISSION MECHANISM
Kind Code:
A1
Abstract:
The present invention discloses a mechanic pressure-hydraulic pressure combined transmission mechanism and a mechanic power-hydraulic power combined transmission mechanism. The mechanic pressure-hydraulic pressure combined transmission mechanism comprises a differential (7), a variable hydraulic pump (5), a hydraulic line (28), a hydraulic motor (18) and a planetary gearbox (17), which are sequentially connected with an engine (2) and driven by it. Furthermore, the differential (7) directly connects with and drives the planetary gearbox (17). The differential (7) distributes the total power input by the engine (2) to the variable hydraulic pump (5) and the planetary gearbox (17), and then drives them. The planetary gearbox (17) gathers the mechanical power flow distributed and transmitted by the differential (7) and the hydraulic power flow transmitted by the hydraulic motor (18), and then outputs the gathered power. When this mechanic pressure-hydraulic pressure combined transmission mechanism is mounted on a vehicle, the vehicle both can rapidly run in mechanic pressure transmission mode, and also can run with infinitely variable speeds in mechanic pressure-hydraulic pressure combined transmission mode. The mechanism has features such as small mounting space, high transmissionefficiency and low oil consumption.