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[CN 202010156216.2] stepless speed change method of hydraulic mechanical transmission
[CN 202010156216.2] Title of stepless speed change method of hydromechanical transmission: Application number of stepless speed change method of hydromechanical transmission: CN 202010156216.2 Applicant: Yangzhou Weibang Garden Machinery Co., Ltd. Application Date: 2020-3-9 Patent Type: Invention Application The present invention relates to a stepless speed change method of hydromechanical transmission, in which a gear is fixed on a shaft and drives a hydraulic pump; Gear tee is connected to shaft one through clutch one, or connected to the transmission housing through clutch 2; gear 5 is connected to shaft 1 through clutch 3; sun gear 1 and sun gear 2 are fixedly installed on shaft 2 and are driven by hydraulic motor 1, and hydraulic motor 2 can also drive shaft 4; The forward mode includes forward section I to section IV with gradually increasing speed. When forward section I: clutch 2 is combined with locking planet carrier 1, gear 1 drives the hydraulic pump to run, the hydraulic pump drives the hydraulic motor one and the hydraulic motor two to rotate. The hydraulic motor one drive shaft 2. the sun gear one and the sun gear two to rotate in the forward direction. The sun gear one drives the inner ring gear 1. the planet carrier two and the shaft four to rotate in the reverse direction through the planetary gear one.; The hydraulic motor two also drives the shaft four to rotate in the reverse direction through the gear ten. The invention can realize a large torque and speed range, stable transmission and high efficiency, and uninterrupted power throughout the whole process.
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