JPH03119658U - - Google Patents
Info
- Publication number
- JPH03119658U JPH03119658U JP2968990U JP2968990U JPH03119658U JP H03119658 U JPH03119658 U JP H03119658U JP 2968990 U JP2968990 U JP 2968990U JP 2968990 U JP2968990 U JP 2968990U JP H03119658 U JPH03119658 U JP H03119658U
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- solenoid valve
- temperature
- pressure port
- speed change
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims 2
- 239000010687 lubricating oil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
Landscapes
- Gear-Shifting Mechanisms (AREA)
Description
第１図はこの考案の実施例を示す一部構成図、
第２図ＡとＢは同じくそれぞれシフトバルブの高
温時での排気ポートを示す一部断面図とそのＡ−
Ａ断面図、第３図ＡとＢは同じくそれぞれシフト
バルブの低温時での排気ポートを示す一部断面図
とそのＢ−Ｂ断面図である。
１……ギヤシフトユニツト、２……トランスミ
ツシヨン、３……チエンジレバーユニツト、４…
…チエンジレバー、５……コントロールボツクス
、９……シフト動作用エアシリンダ、１０，１１
……シフトバルブ、２０……排気ポート、２５…
…形状記憶合金製スプリング、２６……プレート
。
FIG. 1 is a partial configuration diagram showing an embodiment of this invention.
Figures 2A and 2B are a partial cross-sectional view showing the exhaust port of the shift valve at high temperature, and its A-
A sectional view, and FIGS. 3A and 3B are a partial sectional view showing the exhaust port of the shift valve at a low temperature, and a BB sectional view thereof, respectively. 1... Gear shift unit, 2... Transmission, 3... Change lever unit, 4...
...Change lever, 5...Control box, 9...Air cylinder for shift operation, 10, 11
...Shift valve, 20...Exhaust port, 25...
...Shape memory alloy spring, 26...plate.
Claims (1)
号に変換してコントロール装置に伝え、コントロ
ール装置で電磁弁を介して流体圧シリンダの駆動
を制御し、トランスミツシヨンをチエンジレバー
の指示どおりにギヤシフトさせるトランスミツシ
ヨンの変速操作装置において、前記電磁弁のシフ
ト動作時に流体圧シリンダからの流体を逃がす排
圧ポートに、トランスミツシヨン内の潤滑油温を
感知して高温時に排圧ポート径を収縮させる絞り
手段を設けたことを特徴とするトランスミツシヨ
ンの変速操作装置。 The operation of the change lever installed in the driver's cab is converted into an electrical signal and transmitted to the control device, which controls the drive of the hydraulic cylinder via a solenoid valve, and shifts the transmission into gear according to the change lever instructions. In the transmission speed change operation device, the temperature of the lubricating oil in the transmission is sensed in the exhaust pressure port that releases fluid from the fluid pressure cylinder during the shift operation of the solenoid valve, and the diameter of the exhaust pressure port is contracted when the temperature is high. A transmission speed change operation device characterized by being provided with a throttle means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2968990U JPH03119658U (en) | 1990-03-23 | 1990-03-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2968990U JPH03119658U (en) | 1990-03-23 | 1990-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03119658U true JPH03119658U (en) | 1991-12-10 |
Family
ID=31532440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2968990U Pending JPH03119658U (en) | 1990-03-23 | 1990-03-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03119658U (en) |
-
1990
- 1990-03-23 JP JP2968990U patent/JPH03119658U/ja active Pending
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