JPH0458417U - - Google Patents
Info
- Publication number
- JPH0458417U JPH0458417U JP10176790U JP10176790U JPH0458417U JP H0458417 U JPH0458417 U JP H0458417U JP 10176790 U JP10176790 U JP 10176790U JP 10176790 U JP10176790 U JP 10176790U JP H0458417 U JPH0458417 U JP H0458417U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- bearing frame
- transmission case
- oil passage
- front housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000010720 hydraulic oil Substances 0.000 claims description 8
- 239000003921 oil Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Description
第１図はこの考案の一実施例を装備したトラク
タの要部を示す縦断側面図、第２図及び第３図は
それぞれ、第１図の−線及び−線にほぼ
沿つた一部省略拡大断面図、第４図は第１図の
−線にほぼ沿つた一部省略拡大断面図、第５図
は第４図の−線にほぼ沿つた拡大断面図、第
６図は第４図の−線にほぼ沿つた一部省略断
面図、第７図は実施例の要部の一部省略横断平面
図、第８図は油圧回路を示す回路図である。
１……前部ハウジング、２……ミツシヨンケー
ス、２ａ……ボス部、３……油圧クラツチ式前後
進切替装置、４……主変速装置、５……副変速装
置、６……軸受枠、６Ａ……前側軸受板、６Ｂ…
…後側軸受板、６ａ……油路受継筒部、７Ｆ……
前進用油圧クラツチ、７Ｒ……後進用油圧クラツ
チ、８Ｆ，９Ｆ……作動油通路、８Ｒ，９Ｒ……
作動油通路、１０……クラツチ軸、１１Ｆ……作
動油通路、１１Ｒ……作動油通路、１２，１３…
…フオークシヤフト、１４，１５……フオークシ
ヤフト、１６……油圧アンロード弁、１６ａ……
弁ばね、１９……原動軸、２２……伝動軸、２３
……駆動軸、２４……変速軸、２５……中間軸、
２６……プロペラ軸、３１……ボルト、３２……
ボルト、３５Ｆ，３５Ｒ……歯車、３６Ｆ，３６
Ｒ……歯車、３７……アイドラ歯車、４２，４３
……複式同期クラツチ、５０……シフト歯車、５
２……クラツチ、５６Ｆ，５６Ｒ……環状油室、
５７……切換弁、５８Ｆ，５８Ｒ……調圧弁、６
２……弁穴、６３……穴、６５，６６……支承穴
、６７，６８……支承穴。
Fig. 1 is a longitudinal sectional side view showing the main parts of a tractor equipped with an embodiment of this invention, and Figs. 2 and 3 are enlarged views of Fig. 1 along lines - and -, respectively, with some parts omitted. 4 is a partially omitted enlarged sectional view roughly along the - line in FIG. 1, FIG. 5 is an enlarged sectional view roughly along the - line in FIG. 4, and FIG. 7 is a partially omitted cross-sectional view of the main part of the embodiment, and FIG. 8 is a circuit diagram showing a hydraulic circuit. DESCRIPTION OF SYMBOLS 1...Front housing, 2...Mission case, 2a...Boss part, 3...Hydraulic clutch type forward/reverse switching device, 4...Main transmission, 5...Sub-transmission, 6...Bearing frame , 6A...front bearing plate, 6B...
...Rear bearing plate, 6a...Oil passage connecting cylinder part, 7F...
Forward hydraulic clutch, 7R... Reverse hydraulic clutch, 8F, 9F... Hydraulic oil passage, 8R, 9R...
Hydraulic oil passage, 10... Clutch shaft, 11F... Hydraulic oil passage, 11R... Hydraulic oil passage, 12, 13...
...Forkshaft, 14, 15...Forkshaft, 16...Hydraulic unload valve, 16a...
Valve spring, 19... Driving shaft, 22... Transmission shaft, 23
... Drive shaft, 24 ... Speed change shaft, 25 ... Intermediate shaft,
26... propeller shaft, 31... bolt, 32...
Bolt, 35F, 35R...Gear, 36F, 36
R... Gear, 37... Idler gear, 42, 43
...Double synchronized clutch, 50...Shift gear, 5
2...Clutch, 56F, 56R...Annular oil chamber,
57...Switching valve, 58F, 58R...Pressure regulating valve, 6
2... Valve hole, 63... Hole, 65, 66... Support hole, 67, 68... Support hole.
Claims (1)
ツシヨンケース２とを前後に連設し、前部ハウジ
ング１の後半部内に油圧クラツチ式前後進切替装
置３を設置すると共に、ミツシヨンケース２内に
機械式多段変速装置４，５を設置したトラクタに
おいて、 前部ハウジング１を後端開放のものに、またミ
ツシヨンケース２を前端開放のものに、それぞれ
形成して、ミツシヨンケース２の前端部内面上の
ボス部２ａに装着した伝動軸支持用の軸受枠６を
前部ハウジング１の後端部内に設け、油圧クラツ
チ式前後進切替え装置３における前進用及び後進
用の油圧クラツチ７Ｆ，７Ｒのための作動油通路
８Ｆ，９Ｆ，８Ｒ，９Ｒをそれぞれ上記軸受枠６
内に設けると共に、該作動油通路と上記油圧クラ
ツチを装架するクラツチ軸１０内の作動油通路１
１Ｆ，１１Ｒとを接続するための油路受継筒部６
ａを上記軸受枠６に設ける一方、機械式多段変速
装置４，５用の複数本のフオークシヤフト１２，
１３，１４，１５の前端部を上記軸受枠６に支持
させ、軸受枠６内に設けた後進用油圧クラツチ用
の上記作動油通路８Ｒ，９Ｒを機体内に連通させ
該通路の油圧をアンロードするための油圧アンロ
ード弁１６を、上記したフオークシヤフトのうち
高速段用のフオークシヤフト１５の変速作用位置
への摺動変位により該フオークシヤフトに押され
アンロード動作せしめられるように配置して上記
軸受枠６内に設けたことを特徴とするトラクタ用
トランスミツシヨン装置。[Scope of Claim for Utility Model Registration] A front housing 1 and a transmission case 2, which respectively constitute a fuselage, are connected in front and back, and a hydraulic clutch type forward/reverse switching device 3 is installed in the rear half of the front housing 1. , in a tractor in which mechanical multi-stage transmissions 4 and 5 are installed in a transmission case 2, the front housing 1 is formed with an open rear end, and the transmission case 2 is formed with an open front end, A bearing frame 6 for supporting the transmission shaft attached to the boss portion 2a on the inner surface of the front end of the transmission case 2 is provided in the rear end of the front housing 1, and is used for forward and reverse movement in the hydraulic clutch type forward/reverse switching device 3. Hydraulic oil passages 8F, 9F, 8R, and 9R for hydraulic clutches 7F and 7R are connected to the bearing frame 6, respectively.
A hydraulic oil passage 1 in the clutch shaft 10 on which the hydraulic oil passage and the hydraulic clutch are mounted.
Oil passage connecting cylinder part 6 for connecting 1F and 11R
a is provided in the bearing frame 6, while a plurality of fork shafts 12,
The front ends of 13, 14, and 15 are supported by the bearing frame 6, and the hydraulic oil passages 8R and 9R for the reverse hydraulic clutch provided in the bearing frame 6 are communicated with the inside of the aircraft to unload the hydraulic pressure in these passages. The hydraulic unloading valve 16 is arranged so as to be pushed by the forkshaft 15 for high speed among the forkshafts described above and caused to perform an unloading operation by sliding the forkshaft 15 to the shift operation position. A transmission device for a tractor, characterized in that it is provided within a bearing frame 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990101767U JP2530102Y2 (en) | 1990-09-27 | 1990-09-27 | Transmission equipment for tractors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990101767U JP2530102Y2 (en) | 1990-09-27 | 1990-09-27 | Transmission equipment for tractors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0458417U true JPH0458417U (en) | 1992-05-19 |
| JP2530102Y2 JP2530102Y2 (en) | 1997-03-26 |
Family
ID=31845487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990101767U Expired - Lifetime JP2530102Y2 (en) | 1990-09-27 | 1990-09-27 | Transmission equipment for tractors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2530102Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5772334U (en) * | 1980-10-20 | 1982-05-04 | ||
| JPS5962350U (en) * | 1982-10-16 | 1984-04-24 | ヤンマーディーゼル株式会社 | Hydraulic clutch transmission |
| JPS6261825A (en) * | 1985-09-13 | 1987-03-18 | Iseki & Co Ltd | Mission case of tractor |
-
1990
- 1990-09-27 JP JP1990101767U patent/JP2530102Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5772334U (en) * | 1980-10-20 | 1982-05-04 | ||
| JPS5962350U (en) * | 1982-10-16 | 1984-04-24 | ヤンマーディーゼル株式会社 | Hydraulic clutch transmission |
| JPS6261825A (en) * | 1985-09-13 | 1987-03-18 | Iseki & Co Ltd | Mission case of tractor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2530102Y2 (en) | 1997-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6314827B1 (en) | Transmission for a working vehicle | |
| US4294130A (en) | Transmission for tractor | |
| US4610174A (en) | Transmission for a tractor | |
| JPH0458417U (en) | ||
| JPH02138254U (en) | ||
| KR100425878B1 (en) | Transmission of tractor | |
| JPH045125U (en) | ||
| JP3993669B2 (en) | Shift operation mechanism of work vehicle | |
| JPH0880754A (en) | Transmission structure for tractor | |
| JP4439037B2 (en) | Transmission for work vehicle | |
| JP2505450Y2 (en) | Transmission structure of tractor | |
| JPH1182642A (en) | Transmission for work vehicle | |
| JP4302603B2 (en) | Tractor transmission | |
| JPH01113662U (en) | ||
| JPH05169995A (en) | Tractor transmission device | |
| GB2148419A (en) | Transmission for a riding mower | |
| JPH0249139Y2 (en) | ||
| JPS6013699Y2 (en) | agricultural tractor | |
| JPH05180307A (en) | Transmission mechanism for farm tractor | |
| JPS6311413Y2 (en) | ||
| JP5094104B2 (en) | Power transmission device for tractor | |
| JPS6339450B2 (en) | ||
| JPS5918179Y2 (en) | Hydraulic clutch type transmission device for agricultural tractors, etc. | |
| JPH0828650A (en) | Speed reduction gear of tractor | |
| JPS6116645B2 (en) |