JPS5771939A - Automatic controller for excavator - Google Patents

Automatic controller for excavator

Info

Publication number
JPS5771939A
JPS5771939A JP14666780A JP14666780A JPS5771939A JP S5771939 A JPS5771939 A JP S5771939A JP 14666780 A JP14666780 A JP 14666780A JP 14666780 A JP14666780 A JP 14666780A JP S5771939 A JPS5771939 A JP S5771939A
Authority
JP
Japan
Prior art keywords
inclinometer
blade
circle
detected
center
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
Application number
JP14666780A
Other languages
Japanese (ja)
Inventor
Tetsuya Nakayama
Tomiya Tanno
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 JP14666780A priority Critical patent/JPS5771939A/en
Publication of JPS5771939A publication Critical patent/JPS5771939A/en
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/80—Component parts
    • E02F3/84—Drives or control devices therefor, e.g. hydraulic drive systems
    • E02F3/844—Drives or control devices therefor, e.g. hydraulic drive systems for positioning the blade, e.g. hydraulically
    • E02F3/845—Drives or control devices therefor, e.g. hydraulic drive systems for positioning the blade, e.g. hydraulically using mechanical sensors to determine the blade position, e.g. inclinometers, gyroscopes, pendulums

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

PURPOSE: To perform the execution of highly reliable and accurate excavation by reducing the number of parts to be controlled and also accumulated errors of testers, etc., by providing an inclinometer on the rotary center axis of a blade.
CONSTITUTION: A blade 20 is supported by a support arm 22 connected to the lower part of a circle 21. The elevating parts 23 and 23' of the circle 21 are actuated by an oil-pressure cylinder to perform the lifting and tilting of the blade 20. A support bar 24 is hung through the center of the circle 21, an inclinometer 25 by which the inclined angle of the support bar 24 from the horizon is detected is provided on the rotary axis at the center of the support 24. When the angle θ' between the rotary axis O1 and the vertical line V1 is detected by the inclinometer 25, the inclined angle θ between the horizontal face H and the plane P1 at the cross section at a right angle to the progress direction of an excavator on the excavating face can be detected.
COPYRIGHT: (C)1982,JPO&Japio
JP14666780A 1980-10-20 1980-10-20 Automatic controller for excavator Pending JPS5771939A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14666780A JPS5771939A (en) 1980-10-20 1980-10-20 Automatic controller for excavator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14666780A JPS5771939A (en) 1980-10-20 1980-10-20 Automatic controller for excavator

Publications (1)

Publication Number Publication Date
JPS5771939A true JPS5771939A (en) 1982-05-06

Family

ID=15412888

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14666780A Pending JPS5771939A (en) 1980-10-20 1980-10-20 Automatic controller for excavator

Country Status (1)

Country Link
JP (1) JPS5771939A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000036231A1 (en) * 1998-12-18 2000-06-22 Caterpillar Inc. Method and apparatus for controlling a work implement
US6278955B1 (en) 1998-12-10 2001-08-21 Caterpillar Inc. Method for automatically positioning the blade of a motor grader to a memory position
US6286606B1 (en) 1998-12-18 2001-09-11 Caterpillar Inc. Method and apparatus for controlling a work implement
FR2822861A1 (en) * 2001-03-29 2002-10-04 Bernard Lago Tractor-mounted shovel has opposite toothed and bladed edges and is reversible about horizontal axis
WO2023238504A1 (en) * 2022-06-08 2023-12-14 株式会社小松製作所 Work machinery, and method and system for controlling work machinery

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4932403A (en) * 1972-07-24 1974-03-25
JPS5282803A (en) * 1975-12-29 1977-07-11 Komatsu Mfg Co Ltd Device for automatically controlling blade of construction machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4932403A (en) * 1972-07-24 1974-03-25
JPS5282803A (en) * 1975-12-29 1977-07-11 Komatsu Mfg Co Ltd Device for automatically controlling blade of construction machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6278955B1 (en) 1998-12-10 2001-08-21 Caterpillar Inc. Method for automatically positioning the blade of a motor grader to a memory position
WO2000036231A1 (en) * 1998-12-18 2000-06-22 Caterpillar Inc. Method and apparatus for controlling a work implement
US6286606B1 (en) 1998-12-18 2001-09-11 Caterpillar Inc. Method and apparatus for controlling a work implement
FR2822861A1 (en) * 2001-03-29 2002-10-04 Bernard Lago Tractor-mounted shovel has opposite toothed and bladed edges and is reversible about horizontal axis
WO2023238504A1 (en) * 2022-06-08 2023-12-14 株式会社小松製作所 Work machinery, and method and system for controlling work machinery

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