| 摘要 |
<p>The drive apparatus of a tractor comprises an engine (E), a main clutch (2) and a power shift change-speed transmission (1). The main clutch (2) is mounted downstream of the power shift transmission (1). Owing to the lower inertia involved in changing the speed ratio of the transmission (1) with the clutch (2) so disposed, a lower change-speed shift force is necessary. This allows the power shift means of the transmission (1) to be made smaller. The drive apparatus further comprises an auxiliary change- speed mechanism 3 incorporating a reversing means, and a super- reduction mechanism 4. The clutch 2 is automatically operated, and two or four wheel drive is possible. A power take-off shaft 12 is driven through a change speed mechanism 10 and a clutch 11. <IMAGE></p> |
