JPS619648U

JPS619648U - Agricultural tractor transmission structure

Info

Publication number: JPS619648U
Application number: JP9437384U
Authority: JP
Inventors: 哲福井
Original assignee: 株式会社クボタ
Priority date: 1984-06-22
Filing date: 1984-06-22
Publication date: 1986-01-21

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

【図面の簡単な説明】[Brief explanation of drawings]

図面は本考案に係る農用トラクタのミッション構造の実
施例を示し、第１図は走行駆動系全体構成図、第２図は
油圧クラッチへの油圧操作回路図、第３図は超減速機構
を示す縦断面図、第４図は超減速機構の別実施例を示す
縦断面図、第５図は超減速機構の従来構造を示す概略構
成図である。Ｈ・・・走行変速部、Ｑ・・・ＰＴＯ変速部、Ｍ・・・
ミッションケース、Ｈ４・・・超減速機構、４Ａ・・・
デフ機構、８・・・ｐ’ｒｏ軸、９・・・伝動軸、１６
・・・最終軸、１７・・・ベベルピ二オン軸、１８・・
・大径ギヤ、１９・・・小径ギヤ、２０．２１・・・二
段ギヤ。The drawings show an embodiment of the transmission structure of an agricultural tractor according to the present invention, with Fig. 1 showing the overall configuration of the traveling drive system, Fig. 2 showing the hydraulic operation circuit for the hydraulic clutch, and Fig. 3 showing the super-deceleration mechanism. FIG. 4 is a longitudinal sectional view showing another embodiment of the super-reduction mechanism, and FIG. 5 is a schematic configuration diagram showing the conventional structure of the super-reduction mechanism. H...Traveling transmission section, Q...PTO transmission section, M...
Mission case, H4... super reduction mechanism, 4A...
Differential mechanism, 8... p'ro shaft, 9... transmission shaft, 16
...Final axis, 17...Bevel pinion axis, 18...
・Large diameter gear, 19...Small diameter gear, 20.21...Two-stage gear.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

主変速及び副変速を行う走行変速部ＨとＰＴＯ変速部Ｑ
をミッションケースＭの前部において上下に並設配備し
、前記走行変速部Ｈの変速出力をミッションケース後部
に設けた車輪駆動用デフ機構４Ａに対スるべベルピ二オ
ン１４に伝達し、ミッションケースＭの後端に設けたＰ
ＴＯ軸８と前記ＰＴＯ変速部Ｑとを前記デフ機構４Ａの
側部を通過する伝動軸９で連動連結してある農用トラク
タのミッション構造であって、前記走行変速部Ｈ（１’
）ｆｌｆｌＥ軸１６とベベルピ二オン軸１７とを相対
回転可能に突合わせ対向させるとともに、前記最終軸１
６と前記べベルピニオン軸１７とを直結する状態と、最
終軸１６の終端に設けた小径ギャ１９とベベルピ二オン
軸１７の前部に設けた大径ギャ１８とを前記ＰＴＯ系伝
動軸９に遊嵌支持した２段ギヤ２０．２１を介して減速
連動させる状態とに切換え可能な超減速機構Ｈ，を装備
した農用トラクタのミッション構造。Traveling transmission section H and PTO transmission section Q that perform main and auxiliary shifting
are arranged vertically in parallel at the front part of the mission case M, and the transmission output of the traveling transmission part H is transmitted to the bevel pinion 14 that slides against the wheel drive differential mechanism 4A provided at the rear part of the transmission case. P provided at the rear end of case M
This is a mission structure for an agricultural tractor in which a TO shaft 8 and the PTO transmission section Q are interlocked and connected by a transmission shaft 9 passing through the side of the differential mechanism 4A, and the transmission section H (1'
) The flflE shaft 16 and the bevel pinion shaft 17 are butted against each other so as to be relatively rotatable, and the final shaft 1
6 and the bevel pinion shaft 17 are directly connected, and the small diameter gear 19 provided at the end of the final shaft 16 and the large diameter gear 18 provided at the front of the bevel pinion shaft 17 are connected to the PTO system transmission shaft 9. A transmission structure of an agricultural tractor equipped with a super deceleration mechanism H that can be switched between a deceleration interlocking state and a deceleration interlocking state via a two-stage gear 20.