JPS6197457U - - Google Patents
Info
- Publication number
- JPS6197457U JPS6197457U JP18092884U JP18092884U JPS6197457U JP S6197457 U JPS6197457 U JP S6197457U JP 18092884 U JP18092884 U JP 18092884U JP 18092884 U JP18092884 U JP 18092884U JP S6197457 U JPS6197457 U JP S6197457U
- Authority
- JP
- Japan
- Prior art keywords
- travel
- pedal
- engine
- pilot pressure
- pump
- 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
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Operation Control Of Excavators (AREA)
Description
第1図は本考案一実施例の構成説明図、第2図
はオートデセル機構の構成説明図、第3図はペダ
ルストロークと圧力との関係説明図、第4図は圧
力とシリンダストロークとの関係説明図、第5図
はシリンダストロークとエンジン回転数との関係
説明図である。
6は走行操作弁、15は走行切換電磁弁、22
はオートデセル機構。
Fig. 1 is an explanatory diagram of the configuration of an embodiment of the present invention, Fig. 2 is an explanatory diagram of the configuration of the auto-deceleration mechanism, Fig. 3 is an explanatory diagram of the relationship between pedal stroke and pressure, and Fig. 4 is an explanatory diagram of the relationship between pressure and cylinder stroke. The explanatory diagram, FIG. 5, is an explanatory diagram of the relationship between cylinder stroke and engine rotation speed. 6 is a travel operation valve, 15 is a travel switching solenoid valve, 22
is an auto-deceleration mechanism.
Claims (1)
プ1からの吐出油の走行モータ12への供給の切
換えを行う走行操作弁6と、パイロツトポンプ3
からの走行操作弁6の切換用のパイロツト圧を切
換選択する走行切換電磁弁15と、パイロツトポ
ンプ3の吐出側に設けられてペダルストロークに
よりパイロツト圧を発生させる走行用ペダル18
と、走行用ペダル18のペダルストロークにより
発生したパイロツト圧により作動してエンジン3
4の回転制御を行うオードデセル機構22とを備
えたことを特徴とするホイール式のパワーシヨベ
ルのエンジン回転制御装置。 A travel operation valve 6 that switches the supply of oil discharged from the travel pump 1 rotationally driven by the engine 34 to the travel motor 12, and a pilot pump 3.
A travel switching solenoid valve 15 that switches and selects the pilot pressure for switching the travel operation valve 6 from the vehicle, and a travel pedal 18 that is provided on the discharge side of the pilot pump 3 and generates pilot pressure by a pedal stroke.
The engine 3 is actuated by the pilot pressure generated by the pedal stroke of the travel pedal 18.
4. An engine rotation control device for a wheel-type power shovel, characterized in that it is equipped with an auto-deceleration mechanism 22 for controlling the rotation of the wheel-type power shovel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1984180928U JPH0410291Y2 (en) | 1984-11-30 | 1984-11-30 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1984180928U JPH0410291Y2 (en) | 1984-11-30 | 1984-11-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6197457U true JPS6197457U (en) | 1986-06-23 |
JPH0410291Y2 JPH0410291Y2 (en) | 1992-03-13 |
Family
ID=30738487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1984180928U Expired JPH0410291Y2 (en) | 1984-11-30 | 1984-11-30 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0410291Y2 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5253189A (en) * | 1975-10-27 | 1977-04-28 | Hitachi Constr Mach Co Ltd | Controller, in hydraulic unit |
JPS5254876A (en) * | 1975-10-28 | 1977-05-04 | Caterpillar Tractor Co | Balance change valve for changing pressure which is held at central position by means of spring |
JPS5362524U (en) * | 1976-10-26 | 1978-05-26 |
-
1984
- 1984-11-30 JP JP1984180928U patent/JPH0410291Y2/ja not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5253189A (en) * | 1975-10-27 | 1977-04-28 | Hitachi Constr Mach Co Ltd | Controller, in hydraulic unit |
JPS5254876A (en) * | 1975-10-28 | 1977-05-04 | Caterpillar Tractor Co | Balance change valve for changing pressure which is held at central position by means of spring |
JPS5362524U (en) * | 1976-10-26 | 1978-05-26 |
Also Published As
Publication number | Publication date |
---|---|
JPH0410291Y2 (en) | 1992-03-13 |
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