JPS6414432A - Excavation controller for oil-pressure shovel - Google Patents
Excavation controller for oil-pressure shovelInfo
- Publication number
- JPS6414432A JPS6414432A JP16910587A JP16910587A JPS6414432A JP S6414432 A JPS6414432 A JP S6414432A JP 16910587 A JP16910587 A JP 16910587A JP 16910587 A JP16910587 A JP 16910587A JP S6414432 A JPS6414432 A JP S6414432A
- Authority
- JP
- Japan
- Prior art keywords
- arm
- angular speed
- bucket
- angle
- beta
- 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
- 238000009412 basement excavation Methods 0.000 title 1
- 239000010727 cylinder oil Substances 0.000 abstract 2
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
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
- E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
- E02F3/437—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like providing automatic sequences of movements, e.g. linear excavation, keeping dipper angle constant
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Operation Control Of Excavators (AREA)
Abstract
PURPOSE:To keep the angle of bucket at a fixed one by a method in which the angular speed of arm is taken in as a factor for controlling the bucket at a fixed angle, and when the angular speed is increased beyond a set value, the speed of arm cylinder is reduced and the angular speed is lowered. CONSTITUTION:In a bucket control amount arithmetic unit 12, the deviation between the detected value alpha1 and target value alpha0 of bucket angle is obtained, and feedback control amount is calculated and sent out as a feedback control signal u1 to a bucket cylinder oil pressure controller 15 for controllig the angle of bucket. In an arm angular speed arithmetic unit 13, the angular speed beta'1 of arm is obtained from the varied amount of detected value beta1 of arm angle and sent out to an arm control amount arithmetic unit 14. In the unit 14, the arm angular speed beta'1 is compared with a set value beta0 by a max. arm angular speed setter 11, and when the value beta'1 is greater than the set value beta'0, a cylinder deceleration signal u2 is sent out to an arm cylinder oil pressure controller 16 and supplied to an electromagnetic proportion valve. The opening degree of the proportion valve is reduced and the speed of the arm cylinder 6 is lowered to decrease the angular speed of arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62169105A JPH0723620B2 (en) | 1987-07-06 | 1987-07-06 | Excavation control device for hydraulic excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62169105A JPH0723620B2 (en) | 1987-07-06 | 1987-07-06 | Excavation control device for hydraulic excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6414432A true JPS6414432A (en) | 1989-01-18 |
| JPH0723620B2 JPH0723620B2 (en) | 1995-03-15 |
Family
ID=15880397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62169105A Expired - Lifetime JPH0723620B2 (en) | 1987-07-06 | 1987-07-06 | Excavation control device for hydraulic excavator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0723620B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010261521A (en) * | 2009-05-08 | 2010-11-18 | Kobelco Contstruction Machinery Ltd | Electronic cushion control device of hydraulic cylinder |
| CN118327080A (en) * | 2023-01-03 | 2024-07-12 | 三一重机有限公司 | Excavator control method, device, excavator and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60181429A (en) * | 1984-02-24 | 1985-09-17 | Hitachi Constr Mach Co Ltd | Excavating angle controller for excavator |
| JPS61266740A (en) * | 1985-05-18 | 1986-11-26 | Hitachi Constr Mach Co Ltd | Control of excavation by oil-pressure shovel |
-
1987
- 1987-07-06 JP JP62169105A patent/JPH0723620B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60181429A (en) * | 1984-02-24 | 1985-09-17 | Hitachi Constr Mach Co Ltd | Excavating angle controller for excavator |
| JPS61266740A (en) * | 1985-05-18 | 1986-11-26 | Hitachi Constr Mach Co Ltd | Control of excavation by oil-pressure shovel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010261521A (en) * | 2009-05-08 | 2010-11-18 | Kobelco Contstruction Machinery Ltd | Electronic cushion control device of hydraulic cylinder |
| CN118327080A (en) * | 2023-01-03 | 2024-07-12 | 三一重机有限公司 | Excavator control method, device, excavator and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0723620B2 (en) | 1995-03-15 |
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