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New Transmission Gear Train for Bulldozers
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English
Abstract
A higher versatility is required from medium size bulldozers as vehicles other than large size bulldozers. Therefore the design concept of the transmission for medium size bulldozers has to be changed to that of large size bulldozers. We adopted combination of high capacity torque convertor and low reduction (high output speed) cross ratio gear train for medium size bulldozers' transmission.
We also evaluated the advantages and disadvantages of rotating clutches, and decided not to use the rotating clutches in new transmission for medium size bulldozers, because of their disadvantages. By these design concepts and material technology, we can reduce the transmission size and improve the efficiency.
Authors
Citation
Sato, M., Kuse, T., Nakamura, M., and Hisamura, T., "New Transmission Gear Train for Bulldozers," SAE Technical Paper 911881, 1991, https://doi.org/10.4271/911881.Also In
References
- Lloids F.A. Anderson J.N. Bowles L.S. “Effects of Operating Conditions on Performance of Wet Friction Materials: A Guide to Material Selection” SAE 881280 1988
- Nakamura K. Mihara K. Kibayashi Y. Naito T. “Improvement on The Fatigue Strength of Case Hardend Gears by A New Heat Treatment Process” SAE 821102 1982
- Akamatsu Y. Tsushima N. Goto T. Hibi K. Itoh K. “Improvement of Roller Bearing Fatigue Life by Surface Roughness Modification” SAE 910958 1991
- Okawa S. Kuse T. Kawasaki N. Shibata A. Yamasita M. “Elasticity in Important Factor of Wet Friction Material” SAE International Off-Highway & Powerplant Congress September 1991
- Sunayama N. Iizuka T. Kato Y. “Study about Transient Thermal Analysis for Transmission Disc Clutches at Engage On/Off” SAE 891783 1989
- Kusaka K. Ohkula Y. “A Transmission Control System for Construction Machinery” SAE 901557 1990