JPS5589543A - Output controlling device for earth moving machine - Google Patents

Output controlling device for earth moving machine

Info

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
Application number
JP16334078A
Other languages
Japanese (ja)
Other versions
JPS6160213B2 (en
Inventor
Keishiro Kurihara
Masakazu Moritoki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP16334078A priority Critical patent/JPS5589543A/en
Publication of JPS5589543A publication Critical patent/JPS5589543A/en
Publication of JPS6160213B2 publication Critical patent/JPS6160213B2/ja
Granted legal-status Critical Current

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positive, and the solenoid valve 9 is switched to the other position 9a and accordingly, the hydraulic cylinder 10 is withdrawn, the blade 11 is raised decreasing the load, and the vehicular speed is increased to the set up speed Vs.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
JP16334078A 1978-12-26 1978-12-26 Output controlling device for earth moving machine Granted JPS5589543A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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