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[CN 201710299592.5] Three-stage hydro-mechanical stepless transmission device for loader
[CN 201710299592.5] Title of a three-stage hydraulic-mechanical stepless transmission device for loaders: Application number of a three-stage hydraulic-mechanical stepless transmission device for loaders: CN 201710299592.5 Applicant: Beijing University of Technology Application Date: 2017-5-2 Patent Type: Application for the Invention The present invention discloses a three-stage hydraulic-mechanical compound stepless transmission device for loaders, which includes three hydraulic-mechanical sections and can improve low-speed transmission efficiency. The transmission device specifically includes: an input part, a hydraulic speed control circuit, a dividing and merging mechanism, a hydraulic machinery section I fixed-axis gear transmission mechanism, a hydraulic machinery section II fixed-axis gear transmission mechanism, a hydraulic machinery section III fixed-axis gear transmission mechanism, and a reverse gear Mechanism and output part. The transmission device adopts a planetary mechanism for the confluence of hydraulic power and mechanical power, and is formed by the continuous connection of three hydraulic mechanical sections in the form of torque convergence. The first section is used for starting, the second section is used for low-speed working conditions, and the third section is used for high-speed walking. There are two reverse working conditions, namely reverse hydraulic machinery I and reverse hydraulic machinery II. Due to the combination of hydraulic power and mechanical power, it can ensure high transmission efficiency and low fuel consumption during operation and transition.
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