JPH0233856U - - Google Patents
Info
- Publication number
- JPH0233856U JPH0233856U JP11018088U JP11018088U JPH0233856U JP H0233856 U JPH0233856 U JP H0233856U JP 11018088 U JP11018088 U JP 11018088U JP 11018088 U JP11018088 U JP 11018088U JP H0233856 U JPH0233856 U JP H0233856U
- Authority
- JP
- Japan
- Prior art keywords
- pump
- work equipment
- oil pressure
- pilot oil
- working machine
- 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
- 238000010276 construction Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Description
第１図は本考案実施例にもとづく作業機ポンプ
のモード切換装置と油圧回路図を示す図、第２図
は従来技術にもとづく車速と作業機上下速度の説
明図、第３図は第２図における油圧回路図である
。
２……作業機ポンプ、２ａ……作業機ポンプ斜
板、３……サーボシリンダー、４……モード切換
スイツチ、６……電磁圧力制御弁、９……切換弁
、１０……ブレードシリンダー（作業機シリンダ
ー）。
Fig. 1 is a diagram showing a mode switching device and hydraulic circuit diagram of a working machine pump based on an embodiment of the present invention, Fig. 2 is an explanatory diagram of vehicle speed and working machine vertical speed based on the conventional technology, and Fig. 3 is a diagram showing a hydraulic circuit diagram of a working machine pump based on an embodiment of the present invention. FIG. 2... Work equipment pump, 2a... Work equipment pump swash plate, 3... Servo cylinder, 4... Mode selection switch, 6... Electromagnetic pressure control valve, 9... Switching valve, 10... Blade cylinder (work machine cylinder).
Claims (1)
ンプを可変容量型ポンプにすると共に流量モード
切換スイツチでパイロツト油圧を制御する電磁圧
力制御弁と、このパイロツト油圧で作動するサー
ボシリンダーを前記作業機ポンプに接続して、ポ
ンプ吐出量を制御するようにしたしたことを特徴
とする建設機械の車速と作業機のマツチングモー
ド切換装置。 In a work equipment pump driven by an engine, the pump is made into a variable displacement pump, and an electromagnetic pressure control valve that controls pilot oil pressure with a flow rate mode changeover switch and a servo cylinder operated by this pilot oil pressure are connected to the work equipment pump. A matching mode switching device for a vehicle speed of a construction machine and a working machine, characterized in that the pump discharge amount is controlled by the following steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11018088U JPH0233856U (en) | 1988-08-23 | 1988-08-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11018088U JPH0233856U (en) | 1988-08-23 | 1988-08-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0233856U true JPH0233856U (en) | 1990-03-02 |
Family
ID=31347103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11018088U Pending JPH0233856U (en) | 1988-08-23 | 1988-08-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0233856U (en) |
-
1988
- 1988-08-23 JP JP11018088U patent/JPH0233856U/ja active Pending
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