JPS60114355U

JPS60114355U - Forward/forward switching mechanism for 4-wheel drive agricultural tractors

Info

Publication number: JPS60114355U
Application number: JP279184U
Authority: JP
Inventors: 三木　博幸; 中田　裕雄; 和夫平田
Original assignee: 株式会社クボタ
Priority date: 1984-01-11
Filing date: 1984-01-11
Publication date: 1985-08-02

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

図面は本考案に係る４輪駆動型農用トラクタの前後進切
換え機構の実施例を示し、第１図は農用トラクタの全体
側面図、第２図はミッション構造　　　　、の縦断側面
図、第３図は後進伝動系の展開側面図、第４図は副変速
機構及び超減速機構の平面図である。１９・・・−・・変速軸、２０・・・−・・変速軸、２
２・・・・・・前輪用伝動軸、２３・・・・・・筒軸、
２４・・・・・・最終変速軸、Ｇ８．　Ｇ９．　Ｇ１１
．　Ｇ１２°°曲ギヤ、Ｇｌｏ−−−−−−バックギヤ
、Ｓ３・・・・・・シフトスリーブ。旦　Ｇ空　ＸＣ！７Ｉｆ力　Ｇ１１、］Ｕフ＝−ｂ−−−−３８，−、−、−１Ｇ１２　１４The drawings show an embodiment of the forward/reverse switching mechanism for a four-wheel drive agricultural tractor according to the present invention, in which Fig. 1 is an overall side view of the agricultural tractor, Fig. 2 is a longitudinal side view of the transmission structure, and Fig. 3 is a longitudinal side view of the transmission structure. FIG. 4 is a developed side view of the reverse transmission system and a plan view of the sub-transmission mechanism and the super-reduction mechanism. 19...--Shift shaft, 20...--Shift shaft, 2
2... Front wheel transmission shaft, 23... Cylindrical shaft,
24... Final gear shift shaft, G8. G9. G11
．． G12° bent gear, Glo---back gear, S3...shift sleeve. Dan G Sora XC! 7I f force G11, ] U f=-b---38,-,-,-1G12 14

Claims

[Scope of utility model registration request]

A pair of transmission shafts 19.20 are disposed concentrically abutting each other, and parallel to these transmission shafts 19.20, a front wheel transmission shaft 22 is interlocked and connected to the final transmission shaft 24. A shift sleeve S3 that can be switched between a state in which both transmission shafts 19.20 are integrally connected and a state in which the transmission shaft 20 on the lower transmission side and a gear G8 loosely fitted thereto is connected to an opposing portion of the shaft 19.20. The front wheel transmission shaft 22 has a cylindrical shaft 2 which is spline-fitted and has gears Gtt G□2 fixed to both ends.
7 gear G, which is loosely fitted to the transmission shaft 19 and one gear G1□ of the cylindrical shaft 23, is connected to the back gear G.
A forward/backward switching mechanism for a 4i-driven agricultural tractor, in which the free rotation gear G8 and the other gear G□2 of the cylindrical shaft 23 are always engaged in interlocking engagement through the gear G□2 of the cylindrical shaft 23.