| 摘要 |
PURPOSE:To make it possible to employ clutches of same capacity by providing each of hydraulic speed change clutch mechanisms transmitting the rotation of a second main speed change shaft to a first main speed change shaft with the speed decreasing or increasing between the two main speed change shafts provided with a plurality sets of hydraulic speed change clutch mechanisms between each of the shafts. CONSTITUTION:In a mission case 4, an input shaft 7, first and second main speed change shafts S1 and S2, sub-speed change shaft S3, PTO shaft S4, and front wheel drive shaft S5 are arranged in parallel to each other, and the clutch shaft 20 of a main clutch 17 having a sprocket 18 transmitting engine power from the input shaft 7 through a chain is disengageably arranged in the side of one end of the first main speed change shaft 31. And the clutch shaft 20 and second main speed change shaft S2 are connected to each other at a revolution ratio of 1:1 through gears G13 and G23. And a low velocity hydraulic speed change clutch 39 for transmitting the rotation of the second main speed change shaft S2 to the first main speed change shaft S1 with the speed decreasing or increasing and 4 stage speed and backward speed change clutch 54 are arranged between the first and second main speed change shafts S1 and S2 respectively.
|
