JPH0198260U - - Google Patents
Info
- Publication number
- JPH0198260U JPH0198260U JP19344787U JP19344787U JPH0198260U JP H0198260 U JPH0198260 U JP H0198260U JP 19344787 U JP19344787 U JP 19344787U JP 19344787 U JP19344787 U JP 19344787U JP H0198260 U JPH0198260 U JP H0198260U
- Authority
- JP
- Japan
- Prior art keywords
- blade
- valve
- main pump
- switching
- operates
- 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
- 230000007423 decrease Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は本考案一実施例の構成説明図、第２図
はメインポンプの吐出曲線図である。
Ａはブレード操作系、Ｂは切換制御手段、８は
カム、９はブレードセンシング用バルブ、１４，
１５はメインポンプ。
FIG. 1 is an explanatory diagram of the configuration of an embodiment of the present invention, and FIG. 2 is a discharge curve diagram of the main pump. A is a blade operation system, B is a switching control means, 8 is a cam, 9 is a blade sensing valve, 14,
15 is the main pump.
Claims (1)
ブレード操作弁を作動するブレード操作系と、走
行、旋回モータの回路に設けられたメインポンプ
と、メインポンプの斜板角制御回路に設けられて
切換作動によりパイロツトコントロールポンプか
らのパイロツト圧をサーボシリンダ機構に供給し
てメインポンプの斜板角を吐出油量の低下側に作
動するブレードセンシング用バルブと、前記ブレ
ード操作系によるブレード操作時に前記ブレード
センシング用バルブに切換用指令を送る切換制御
手段とを備えたことを特徴とするブレードセンシ
ング装置。 A blade operation system that operates a blade operation valve via a linking means by operating a blade operation lever, a main pump installed in the travel and swing motor circuits, and a switching operation installed in the swash plate angle control circuit of the main pump. a blade sensing valve that supplies pilot pressure from the pilot control pump to the servo cylinder mechanism to operate the swash plate angle of the main pump to the side where the amount of oil discharged decreases; and a blade sensing valve that operates the blade by the blade operating system. A blade sensing device comprising: switching control means for sending a switching command to a valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19344787U JPH0198260U (en) | 1987-12-22 | 1987-12-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19344787U JPH0198260U (en) | 1987-12-22 | 1987-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0198260U true JPH0198260U (en) | 1989-06-30 |
Family
ID=31484235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19344787U Pending JPH0198260U (en) | 1987-12-22 | 1987-12-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0198260U (en) |
-
1987
- 1987-12-22 JP JP19344787U patent/JPH0198260U/ja active Pending
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