JPS5589543A - Output controlling device for earth moving machine - Google Patents
Output controlling device for earth moving machineInfo
- Publication number
- JPS5589543A JPS5589543A JP16334078A JP16334078A JPS5589543A JP S5589543 A JPS5589543 A JP S5589543A JP 16334078 A JP16334078 A JP 16334078A JP 16334078 A JP16334078 A JP 16334078A JP S5589543 A JPS5589543 A JP S5589543A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- blade
- solenoid valve
- controlling device
- hydraulic cylinder
- 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
Landscapes
- Operation Control Of Excavators (AREA)
Abstract
PURPOSE: To bring forth maximum working capacity by automatically switching set up speeds according to the velocity stages in use.
CONSTITUTION: Output voltage at controlling operation unit 7 is applied to a solenoid valve 9 for switching over the valve 9. Operating fluid is supplied to a hydraulic cylinder 10 through the solenoid valve 9 for raising or lowering a blade and controlling the load on the blade 11 so as to equalize the values of detected speed Vf and set up speed Vs. When the detected speed Vf is less than the set up speed Vs, for example, deviation of voltage Δe becomes positive, and the solenoid valve 9 is switched to the other position 9a and accordingly, the hydraulic cylinder 10 is withdrawn, the blade 11 is raised decreasing the load, and the vehicular speed is increased to the set up speed Vs. As aforementioned, the maximum working capacity is always brought forth at any velocity stage.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16334078A JPS5589543A (en) | 1978-12-26 | 1978-12-26 | Output controlling device for earth moving machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16334078A JPS5589543A (en) | 1978-12-26 | 1978-12-26 | Output controlling device for earth moving machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5589543A true JPS5589543A (en) | 1980-07-07 |
JPS6160213B2 JPS6160213B2 (en) | 1986-12-19 |
Family
ID=15771998
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16334078A Granted JPS5589543A (en) | 1978-12-26 | 1978-12-26 | Output controlling device for earth moving machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5589543A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0265526A1 (en) * | 1986-04-01 | 1988-05-04 | Kabushiki Kaisha Komatsu Seisakusho | Apparatus for controlling the engine of wheeled construction machine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52142802A (en) * | 1976-05-21 | 1977-11-29 | Komatsu Mfg Co Ltd | Device for automatically controlling blade of bulldozer |
JPS5334302A (en) * | 1976-09-09 | 1978-03-30 | Kubota Ltd | Vertically moving mechanism for work apparatus of earthwork machine |
-
1978
- 1978-12-26 JP JP16334078A patent/JPS5589543A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52142802A (en) * | 1976-05-21 | 1977-11-29 | Komatsu Mfg Co Ltd | Device for automatically controlling blade of bulldozer |
JPS5334302A (en) * | 1976-09-09 | 1978-03-30 | Kubota Ltd | Vertically moving mechanism for work apparatus of earthwork machine |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0265526A1 (en) * | 1986-04-01 | 1988-05-04 | Kabushiki Kaisha Komatsu Seisakusho | Apparatus for controlling the engine of wheeled construction machine |
Also Published As
Publication number | Publication date |
---|---|
JPS6160213B2 (en) | 1986-12-19 |
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