JPS6241227U

JPS6241227U -

Info

Publication number: JPS6241227U
Application number: JP13369085U
Authority: JP
Priority date: 1985-08-30
Filing date: 1985-08-30
Publication date: 1987-03-12
Also published as: JPH0243782Y2

Description

[Brief explanation of the drawing]

第１図は本考案に係るトラクターの全体概略側
面図、第２，３図は第１図の―線並びに―
線に沿う部分拡大断面図、第４図はそのトラン
スミツシヨン機構を展開して示す拡大断面平面図
、第５図は従来の機構を模式化して示す側断面図
、第６図は同じく断面正面図である。Ｔ……トラクター機体、Ｓ１……クラツチハウ
ジング、Ｓ２……トランスミツシヨンケース、Ｈ
……間隔高さ、Ｘ，Ｙ，Ｚ……仮想三角形の頂点
、１０……エンジン、１１……クランクシヤフト
、１６……フロアー、２０……ステツプ、２３…
…入力メインシヤフト、２７……クラツチ、３７
……走行変速用カウンターシヤフト、３８……Ｐ
ＴＯ変速用カウンターシヤフト、２３ａ，３７ａ
，３８ａ……中空軸、３７ｂ，３８ｂ……中実軸
、３６，３９，５０……ギヤ。 Figure 1 is an overall schematic side view of the tractor according to the present invention, and Figures 2 and 3 are the lines and lines of Figure 1.
Fig. 4 is an enlarged sectional plan view showing the transmission mechanism developed, Fig. 5 is a side sectional view schematically showing the conventional mechanism, and Fig. 6 is a front cross-sectional view. It is a diagram. T...Tractor body, S1...Clutch housing, S2...Transmission case, H
... Interval height, X, Y, Z ... Vertex of virtual triangle, 10 ... Engine, 11 ... Crankshaft, 16 ... Floor, 20 ... Step, 23 ...
...Input main shaft, 27...Clutch, 37
...Countershaft for traveling speed change, 38...P
TO shifting countershaft, 23a, 37a
, 38a... hollow shaft, 37b, 38b... solid shaft, 36, 39, 50... gear.

Claims

[Claims for Utility Model Registration] 1. The input main shaft 23 to which the rotational power of the engine 10 is intermittently transmitted by the clutch 27, and the gear 36 on the main shaft 23 and the gear 36 on the main shaft 23 for rotation and rotation, for traveling transmission and PTO transmission. In a transmission mechanism in which the two countershafts 37 and 38 are mounted in a parallel horizontal state, the remaining two vertices Y and Z of the virtual triangle are the main shaft 23 and the top vertex X. A transmission mechanism for a tractor, characterized in that both countershafts 37 and 38 are arranged in a left-right and right-handed manner so as to be located below the rotational axis of the crankshaft 11. 2. The input main shaft 23 is a hollow shaft 23a, and the front portions of both countershafts 37, 38 for traveling speed change and PTO speed change are both front hollow shafts 37a, 38a, and the front hollow shafts 37a, 38a are A transformer for a tractor according to claim 1, characterized in that gears 39 and 50, which are spline-fitted to each other, are meshed with a gear 36 integrally formed at the rear end of the main shaft 23. Mission mechanism. 3. Input main shaft 23 and both countershafts 37, 38 for traveling speed change and PTO speed change
Let the virtual triangle formed by and be an isosceles triangle, and both countershafts 37,
38 front hollow shafts 37a, 38a and gears 39, 50 spline-fitted to the hollow shafts 37a, 38a, respectively, are defined as the same, as described in claim 1 of the utility model registration claim. tractor transmission mechanism.