| 摘要 |
PURPOSE: A transmission assembly of a tractor is provided to conveniently substitute or repair parts by having separated casings capable of being divided into several parts. CONSTITUTION: A transmission assembly of a tractor includes a first casing(1) horizontally laid and having a gear array of a main shaft(10) and an auxiliary shaft(20) in the shape of square frame, and a second casing(100) of a "£" shaped frame opened toward the first casing and supporting a main power shaft(50) connected to the auxiliary shaft of the first casing and an outer power output shaft(60) connected to the main shaft of the first casing, wherein the main shaft has a connection shaft part(10') outwardly protruded and rotatably fixed by a bearing(14), a connecting gear(70) is mounted outside the connection shaft part by engaging a gear tooth part(70') a gear(21) of the auxiliary shaft and has a spline shaft part(71) forward, an outside power output part(60) is mounted to the spline shaft part by inserting a spline cone part(61) fixed at a shaft sectional part(60'), and an inserting hole(22) of the auxiliary shaft inserted by the main power shaft and a shaft sectional part(50') of the main shaft are coupled together when assembling the first and second casings, wherein adjust pins formed on a wall of the casings are fitted in pin holes and outwardly protruded brackets of the casings are fixed by bolts so that a multi-divisional transmission assembly is achieved.
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