JPS5784291A - Drag head position controller in dredger - Google Patents
Drag head position controller in dredgerInfo
- Publication number
- JPS5784291A JPS5784291A JP15815480A JP15815480A JPS5784291A JP S5784291 A JPS5784291 A JP S5784291A JP 15815480 A JP15815480 A JP 15815480A JP 15815480 A JP15815480 A JP 15815480A JP S5784291 A JPS5784291 A JP S5784291A
- Authority
- JP
- Japan
- Prior art keywords
- drag
- drag head
- rate
- retractive
- draft
- 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
Abstract
PURPOSE: To constantly hold the drag head at the proper location in such a way that retractive rate and retractive rate of drag head suspending rope and drag arm suspending rope are automatically controlled by means of arithmetic results on the basis of draft changes of the hull which are detected by a sensor.
CONSTITUTION: A drag head 1 is made to be able to be controlled on the basis of draft changes of the hull, in other words, data of draft changes which are obtained from a draft sensor 2 are given to an arithmetic part 9, retractive rate and tractive rate of a drag arm suspending rope 7 are arithmetically operated by the arithmetic part 9, this arithmetic result is transferred to a winch 10, subsequently winches 11, 12 are operated, by which lift and descent of the drag head 1 and the drag arm 4, and the drag head is constantly retained at the proper position. In addition, 13, 15 denote a hydraulic ram cylinder and an accumulator, and these integrate a swell compensater.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15815480A JPS5784291A (en) | 1980-11-12 | 1980-11-12 | Drag head position controller in dredger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15815480A JPS5784291A (en) | 1980-11-12 | 1980-11-12 | Drag head position controller in dredger |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5784291A true JPS5784291A (en) | 1982-05-26 |
Family
ID=15665438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15815480A Pending JPS5784291A (en) | 1980-11-12 | 1980-11-12 | Drag head position controller in dredger |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5784291A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5938432A (en) * | 1982-08-27 | 1984-03-02 | Mitsubishi Heavy Ind Ltd | Drag head depth displayer |
-
1980
- 1980-11-12 JP JP15815480A patent/JPS5784291A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5938432A (en) * | 1982-08-27 | 1984-03-02 | Mitsubishi Heavy Ind Ltd | Drag head depth displayer |
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