JPS5784291A - Drag head position controller in dredger - Google Patents

Drag head position controller in dredger

Info

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
Application number
JP15815480A
Other languages
Japanese (ja)
Inventor
Naoki Noguchi
Norio Hirokawa
Masahide Murase
Nobuyoshi Yonekura
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP15815480A priority Critical patent/JPS5784291A/en
Publication of JPS5784291A publication Critical patent/JPS5784291A/en
Pending legal-status Critical Current

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
JP15815480A 1980-11-12 1980-11-12 Drag head position controller in dredger Pending JPS5784291A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938432A (en) * 1982-08-27 1984-03-02 Mitsubishi Heavy Ind Ltd Drag head depth displayer

Cited By (1)

* Cited by examiner, † Cited by third party
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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