JPH0325065U - - Google Patents
Info
- Publication number
- JPH0325065U JPH0325065U JP1989085928U JP8592889U JPH0325065U JP H0325065 U JPH0325065 U JP H0325065U JP 1989085928 U JP1989085928 U JP 1989085928U JP 8592889 U JP8592889 U JP 8592889U JP H0325065 U JPH0325065 U JP H0325065U
- Authority
- JP
- Japan
- Prior art keywords
- shift
- opening
- hydraulic
- shift shaft
- parts
- 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 13
- 238000010586 diagram Methods 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 1
Landscapes
- General Details Of Gearings (AREA)
- Gear-Shifting Mechanisms (AREA)
Description
図面は本考案に係る作業車の走行変速構造の実
施例を示し、第１図は油圧ユニツト及び油圧ユニ
ツトのミツシヨンケースへの取付状態を示す側面
図、第２図は人為変速ユニツト及び人為変速ユニ
ツトのミツシヨンケースへの取付状態を示す側面
図、第３図は油圧ユニツトをミツシヨンケースに
連結した状態を示す縦断正面図、第４図は人為変
速ユニツトをミツシヨンケースに連結した状態を
示す縦断正面図、第５図は農用トラクタの伝動系
を示す概略図、第６図は油圧ユニツトの油圧回路
図、第７図は主変速装置の両シフト軸間に設けら
れた牽制構造を示す断面図である。
８……ミツシヨンケース、８ａ……ミツシヨン
ケースの開口部、２１……人為変速ユニツト、２
２ａ，２４ａ……人為変速ユニツトの操作部、２
９，３５……変速レバー、３１……油圧ユニツト
、３２……シフト軸、３２ａ，３２ｂ……シフト
軸の係合部、４７……シフトフオーク、Ａ，Ｄ…
…ギヤ変速装置、Ｓ１，Ｓ３……ギヤ変速装置の
シフトギヤ、Ｔ１，Ｔ２，Ｔ３……油圧ユニツト
の油圧アクチユエータ。
The drawings show an embodiment of the traveling speed change structure for a work vehicle according to the present invention, and FIG. 1 is a side view showing a hydraulic unit and how the hydraulic unit is attached to the transmission case, and FIG. 2 is a side view showing the manual speed change unit and the manual speed change. Figure 3 is a side view showing how the unit is attached to the transmission case, Figure 3 is a longitudinal sectional front view showing how the hydraulic unit is connected to the transmission case, and Figure 4 is a side view showing how the manual transmission unit is connected to the transmission case. 5 is a schematic diagram showing the transmission system of the agricultural tractor, FIG. 6 is a hydraulic circuit diagram of the hydraulic unit, and FIG. 7 is a check structure provided between both shift shafts of the main transmission. FIG. 8...Mission case, 8a...Opening of the transmission case, 21...Artificial transmission unit, 2
2a, 24a...Manual transmission unit operation section, 2
9, 35... Gear shift lever, 31... Hydraulic unit, 32... Shift shaft, 32a, 32b... Shift shaft engaging portion, 47... Shift fork, A, D...
... Gear transmission, S 1 , S 3 ... Shift gear of the gear transmission, T 1 , T 2 , T 3 ... Hydraulic actuator of the hydraulic unit.
Claims (1)
ヤＳ１，Ｓ３に係合するシフトフオーク４７と、
このシフトフオーク４７を支持するシフト軸３２
とを備え、各シフト軸３２の一端を延設して、そ
の延設端側に設けられた係合部３２ａ，３２ｂを
ミツシヨンケース８の開口部８ａに臨ませると共
に、前記係合部３２ａに係合して各シフト軸３２
をスライド操作可能な油圧アクチユエータＴ１，
Ｔ２，Ｔ３を備えた油圧ユニツト３１を前記開口
部８ａに取り付ける油圧変速操作状態と、前記係
合部３２ａ，３２ｂに係合して各シフト軸３２を
スライド操作可能な操作部２２ａ，２４ａと、こ
の操作部２２ａ，２４ａ操作する変速レバー２９
，３５を備えた人為変速ユニツト２１を前記開口
部８ａに取り付ける人為変速操作状態とに切換可
能としてある作業車の走行変速構造。 a shift fork 47 that engages with shift gears S 1 and S 3 for shifting in gear transmissions A and D;
Shift shaft 32 that supports this shift fork 47
One end of each shift shaft 32 is extended so that the engaging portions 32a, 32b provided on the extended end side face the opening 8a of the mission case 8, and the engaging portion 32a each shift shaft 32
Hydraulic actuator T 1 that can be slid.
Hydraulic shift operation state in which the hydraulic unit 31 equipped with T 2 and T 3 is attached to the opening 8a, and the operating parts 22a and 24a that can engage with the engaging parts 32a and 32b to slide each shift shaft 32. and a gear shift lever 29 operated by the operation parts 22a and 24a.
, 35 is installed in the opening 8a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989085928U JPH0755404Y2 (en) | 1989-07-20 | 1989-07-20 | Work vehicle traveling speed change structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989085928U JPH0755404Y2 (en) | 1989-07-20 | 1989-07-20 | Work vehicle traveling speed change structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0325065U true JPH0325065U (en) | 1991-03-14 |
| JPH0755404Y2 JPH0755404Y2 (en) | 1995-12-20 |
Family
ID=31635300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989085928U Expired - Lifetime JPH0755404Y2 (en) | 1989-07-20 | 1989-07-20 | Work vehicle traveling speed change structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0755404Y2 (en) |
-
1989
- 1989-07-20 JP JP1989085928U patent/JPH0755404Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0755404Y2 (en) | 1995-12-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |