JPS6412964U

JPS6412964U -

Info

Publication number: JPS6412964U
Application number: JP1987093484U
Authority: JP
Priority date: 1987-06-19
Filing date: 1987-06-19
Publication date: 1989-01-24

Description

[Brief explanation of the drawing]

第１図は本考案を適用した農業用トラクタの側
面図、第２図はミツシヨンケース内の動力伝達装
置を示す縦断面図、第３図は第２図の一部拡大図
である。１……車体フレーム、２……前輪、３……後輪
、４……エンジン、５……プロペラシヤフト、６
……ミツシヨンケース、７……主変速ケース、８
……中間ケース、９……副変速ケース、１０……
後車軸、１１……前輪駆動プロペラシヤフト、１
２……油圧シリンダ、１３……リフトアーム、１
４……座席、１５……ハンドル、１６……主クラ
ツチケース、１７……主クラツチ、１８……１速
変速段、１９……２速変速段、２０……３速変速
段、２１……４速兼後進変速段、２２……副変速
装置、２３……差動装置、２４……歯車、２５…
…ＰＴＯ変速装置、２６……歯車伝動装置、２７
……油圧ポンプ、２８……制御ケース、２９……
中間壁、３０……油圧ポンプ、３１……歯車、３
２……ボールベアリング、３３……ニードル軸受
、３４……主油通路、３５……ニードル軸受、３
６……３速被駆動歯車、３７……３速駆動歯車、
３８……２速被駆動歯車、３９……ニードル軸受
、４０……４速被駆動歯車、４１……ニードル軸
受、４２……後進被駆動歯車、４３……ニードル
軸受、４４……セレクタ、４５……被駆動歯車、
４６……ニードル軸受、４７……軸受部、４８…
…給油通路、４９……給油孔、５０……給油孔、
５１……前壁、５２……給油パイプ、５３……給
油口、５４……油通路、Ｓ１……入力軸、Ｓ２…
…ＰＴＯ軸、Ｓ３……前輪駆動軸、Ｓ４……主軸
、Ｓ５……主変速カウンタ軸、Ｓ６……最終軸、
Ｓ７……ＰＴＯ変速軸、Ｓ８……ポンプ駆動軸、
Ｓ９……ポンプ駆動軸。 FIG. 1 is a side view of an agricultural tractor to which the present invention is applied, FIG. 2 is a longitudinal sectional view showing a power transmission device within a transmission case, and FIG. 3 is a partially enlarged view of FIG. 2. 1... Body frame, 2... Front wheel, 3... Rear wheel, 4... Engine, 5... Propeller shaft, 6
...Mission case, 7...Main transmission case, 8
...Intermediate case, 9...Sub-transmission case, 10...
Rear axle, 11...Front wheel drive propeller shaft, 1
2...Hydraulic cylinder, 13...Lift arm, 1
4... Seat, 15... Handle, 16... Main clutch case, 17... Main clutch, 18... 1st gear, 19... 2nd gear, 20... 3rd gear, 21... 4th speed/reverse gear stage, 22... Sub-transmission device, 23... Differential device, 24... Gear, 25...
...PTO transmission, 26...Gear transmission, 27
... Hydraulic pump, 28 ... Control case, 29 ...
Intermediate wall, 30... Hydraulic pump, 31... Gear, 3
2... Ball bearing, 33... Needle bearing, 34... Main oil passage, 35... Needle bearing, 3
6...3rd speed driven gear, 37...3rd speed driving gear,
38... 2nd speed driven gear, 39... Needle bearing, 40... 4th speed driven gear, 41... Needle bearing, 42... Reverse driven gear, 43... Needle bearing, 44... Selector, 45 ...driven gear,
46... Needle bearing, 47... Bearing section, 48...
... Oil supply passage, 49 ... Oil supply hole, 50 ... Oil supply hole,
51... Front wall, 52... Oil supply pipe, 53... Oil supply port, 54... Oil passage, S1... Input shaft, S2...
...PTO axis, S3...Front wheel drive shaft, S4...Main shaft, S5...Main shift counter shaft, S6...Final shaft,
S7...PTO speed change shaft, S8...pump drive shaft,
S9...Pump drive shaft.

Claims

[Scope of utility model registration request]

In a vehicle power transmission device comprising a transmission shaft having a gear transmission disposed inside a transmission case, the transmission shaft has an intermediate portion supported on the case wall via a bearing portion, and a shaft is attached to the shaft center portion of the transmission shaft over almost its entire length. A main oil passage is bored in the axial direction, and an oil supply passage that opens to the bearing portion is provided in the case wall, and a radial oil supply passage that branches from the main oil passage and communicates with the oil supply passage is provided in the transmission shaft. An oil supply structure characterized in that a hole is provided and the main oil passage is communicated with each bearing of a plurality of loosely fitted gears arranged on the speed change shaft along both sides of the bearing part. .