JPS6289349U - - Google Patents
Info
- Publication number
- JPS6289349U JPS6289349U JP18156685U JP18156685U JPS6289349U JP S6289349 U JPS6289349 U JP S6289349U JP 18156685 U JP18156685 U JP 18156685U JP 18156685 U JP18156685 U JP 18156685U JP S6289349 U JPS6289349 U JP S6289349U
- Authority
- JP
- Japan
- Prior art keywords
- switching valve
- valve
- pump
- variable displacement
- control
- 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
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Operation Control Of Excavators (AREA)
- Control And Safety Of Cranes (AREA)
- Jib Cranes (AREA)
- Fluid-Pressure Circuits (AREA)
Description
図は本考案の１実施例を示す油圧回路図である
。
２は可変容量ポンプ、３は制御ポンプ、４は吐
出ライン、５は走行用切換弁、６は切換弁、７は
走行モータ、１３は制御ライン、１５は前後進操
作弁、１６，１７はパイロツトライン、１８はシ
ヤトル弁、１９はフイードバツクライン、２０は
アクチユエータを示す。
The figure is a hydraulic circuit diagram showing one embodiment of the present invention. 2 is a variable displacement pump, 3 is a control pump, 4 is a discharge line, 5 is a travel switching valve, 6 is a switching valve, 7 is a travel motor, 13 is a control line, 15 is a forward/reverse operation valve, 16 and 17 are pilots. 18 is a shuttle valve, 19 is a feedback line, and 20 is an actuator.
Claims (1)
様にし、可変容量ポンプからの吐出ラインにパイ
ロツト式走行用切換弁及び切換弁を設け、走行用
切換弁に走行モータ、切換弁にクレーン用アクチ
ユエータを接続し、前記制御ポンプに接続される
制御ラインに前後進操作弁を設け該操作弁と前記
走行用切換弁とを２本のパイロツトラインで接続
すると共に両パイロツトライン間にシヤトル弁を
設け、前記可変容量ポンプの容量変更用アクチユ
エータに接続されたフイードバツクラインをシヤ
トル弁を介し制御ラインに接続したことを特徴と
するホイール式建設機械の油圧回路。 The control pump is driven together with the variable displacement pump, and the discharge line from the variable displacement pump is equipped with a pilot-type traveling switching valve and a switching valve, and the traveling switching valve is connected to the traveling motor, and the switching valve is connected to the crane actuator. , a forward/reverse operating valve is provided in a control line connected to the control pump, the operating valve and the travel switching valve are connected by two pilot lines, and a shuttle valve is provided between both pilot lines, and the variable displacement A hydraulic circuit for a wheel-type construction machine, characterized in that a feedback line connected to an actuator for changing the capacity of a pump is connected to a control line via a shuttle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18156685U JPS6289349U (en) | 1985-11-26 | 1985-11-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18156685U JPS6289349U (en) | 1985-11-26 | 1985-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6289349U true JPS6289349U (en) | 1987-06-08 |
Family
ID=31126550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18156685U Pending JPS6289349U (en) | 1985-11-26 | 1985-11-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6289349U (en) |
-
1985
- 1985-11-26 JP JP18156685U patent/JPS6289349U/ja active Pending
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