JPS63160227U

JPS63160227U -

Info

Publication number: JPS63160227U
Application number: JP1987052731U
Authority: JP
Priority date: 1987-04-10
Filing date: 1987-04-10
Publication date: 1988-10-20
Anticipated expiration: 2002-04-10
Also published as: JPH0632438Y2

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示し、第１図はトラ
クタにおけるミツシヨンケースの要部縦断面図、
第２図は第１図のＡ―Ａ矢視断面図、第３図はス
テアリング装置と中間差動装置の切換リンクとの
連動状態を示す側面図、第４図は第３図における
Ｂ部の拡大側面図、第５図は第４図におけるＣ―
Ｃ矢視断面図、第６図は第４図におけるＤ―Ｄ矢
視断面図、第７図は第３図におけるＢ部の一部を
省略した斜視図、第８図はトラクタの動力伝動系
統図である。６……前輪、１０……後輪の差動装置、１２…
…デフ駆動歯車、１３……駆動軸、１６……制動
サイド歯車軸、１７……スリーブ、２０……中間
差動装置、２１……デイスクブレーキ、２２……
デイスクプレート、２３……メイテングプレート
、２８……駆動サイド歯車軸、３２……切換軸、
３４……切換レバー、３５……切換リンク、３６
……連動リンク、３７……連結ピン、４０……前
輪の差動装置、４５……ステアリングホイール、
４７……固定ボス、４９……移動ボス、５０……
応動機構、５３……天秤リンク、５６……ワイヤ
リンク、５８ａ……インナワイヤ、６１……連結
ロツド。 The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional view of the main part of a transmission case in a tractor;
Figure 2 is a sectional view taken along the line A--A in Figure 1, Figure 3 is a side view showing the interlocking state of the steering device and the switching link of the intermediate differential gear, and Figure 4 is a section of B in Figure 3. Enlarged side view, Figure 5 is C- in Figure 4.
6 is a sectional view taken along the line D-D in FIG. 4, FIG. 7 is a perspective view with part of part B in FIG. 3 omitted, and FIG. 8 is a tractor power transmission system. It is a diagram. 6...Front wheel, 10...Rear wheel differential, 12...
... Differential drive gear, 13 ... Drive shaft, 16 ... Brake side gear shaft, 17 ... Sleeve, 20 ... Intermediate differential gear, 21 ... Disc brake, 22 ...
Disc plate, 23... Mating plate, 28... Drive side gear shaft, 32... Switching shaft,
34...Switching lever, 35...Switching link, 36
... Interlocking link, 37 ... Connection pin, 40 ... Front wheel differential, 45 ... Steering wheel,
47... Fixed boss, 49... Moving boss, 50...
Response mechanism, 53... Balance link, 56... Wire link, 58a... Inner wire, 61... Connection rod.

Claims

[Scope of utility model registration request]

In a four-wheel drive agricultural tractor in which the front wheels and the rear wheels are driven by respective differential devices, the intermediate differential device provided in the front wheel drive path that transmits power to the front wheel differential device is in a locked state. The brake mechanism is configured to be selectively switchable between the unlocked state and the intermediate differential, and applies braking only when the intermediate differential is in the unlocked state, driving the front wheels at double speed, as a disc brake that operates in response to the turning motion of the front wheels. A four-wheel drive agricultural tractor.