TRANSMISSION

摘要

A vehicle-use transmission includes: an input shaft into which a driving force from an engine is inputted; a power extraction shaft for transmitting the driving force of the input shaft to front wheels; a transmission mechanism for transmitting the driving force of the input shaft to rear wheels; and a rear-wheel intermediate shaft provided in a power transmission path between the power extraction shaft and the transmission mechanism. The rear-wheel intermediate shaft transmits the driving force through a helical gear attached to the rear-wheel intermediate shaft. Further, the rear-wheel intermediate shaft is supported by tapered roller bearings.

主权项

1. A vehicle-use transmission comprising:
an input shaft into which a driving force from an engine is inputted; a power extraction shaft for transmitting the driving force of the input shaft to front wheels; a transmission mechanism for transmitting the driving force of the input shaft to rear wheels; a rear-wheel intermediate shaft in a power transmission path between the power extraction shaft and the transmission mechanism, the rear-wheel intermediate shaft being configured to transmit the driving force through a helical gear attached to the rear-wheel intermediate shaft; and
tapered roller bearings for supporting the rear-wheel intermediate shaft, each of the tapered roller bearings including:an outer race abutting against a transmission case of the transmission;an inner race abutting against the rear-wheel intermediate shaft androllers revolving and located between the outer race and the inner race; wherein each of the tapered roller bearings is configured such that an imaginary extension of a raceway surface of the outer race, an imaginary extension of a raceway surface of the inner race, and a vertex of an imaginary cone formed by the respective roller intersect with each other at one intersection point on an imaginary longitudinal centerline of the rear-wheel intermediate shaft.