EP0091978A1 - Benne preneuse à deux coquilles et un câble à usage sous-marin - Google Patents

Benne preneuse à deux coquilles et un câble à usage sous-marin Download PDF

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Publication number
EP0091978A1
EP0091978A1 EP82103291A EP82103291A EP0091978A1 EP 0091978 A1 EP0091978 A1 EP 0091978A1 EP 82103291 A EP82103291 A EP 82103291A EP 82103291 A EP82103291 A EP 82103291A EP 0091978 A1 EP0091978 A1 EP 0091978A1
Authority
EP
European Patent Office
Prior art keywords
compressed air
piston
single rope
gripper
clamshell
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.)
Withdrawn
Application number
EP82103291A
Other languages
German (de)
English (en)
Inventor
Manfred Brendecke
Jürgen Burkhardt
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.)
Preussag AG
Terex Peiner GmbH
Original Assignee
Preussag AG
Peiner Maschinen und Schraubenwerke AG
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 Preussag AG, Peiner Maschinen und Schraubenwerke AG filed Critical Preussag AG
Priority to EP82103291A priority Critical patent/EP0091978A1/fr
Publication of EP0091978A1 publication Critical patent/EP0091978A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/14—Grabs opened or closed by driving motors thereon
    • B66C3/16—Grabs opened or closed by driving motors thereon by fluid motors
    • 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
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
    • E02F3/4131—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device mounted on a floating substructure

Definitions

  • the invention relates to a single rope clamshell grab for underwater operation.
  • Such grabs are mainly used for research tasks to take soil samples from sandy and clayey sediments with phosphorite or manganese nodules at great depths.
  • the invention has for its object to provide a one-rope clamshell grab that cuts out a piece of seabed with undamaged layer composition due to large cutting forces and good digging behavior.
  • the gripper has its own energy source for opening and closing the gripper shells.
  • the energy source consists in a particularly advantageous manner of compressed air bottles.
  • That the compressed air bottle for the closing process has a greater pressure than the compressed air bottle for the opening process.
  • That the compressed air cylinders are connected to two piston / cylinder versions via control elements.
  • control elements represent a device that initiates the closing process after the gripper has been placed on the sea floor.
  • That the deceleration device consists of a piston / cylinder design, a throttle with a variable cross-section and a filter.
  • a gripper which has two gripper shells 3 and 4 hanging on a hoisting rope 2, which with the aid of two compressed air bottles 5 and 6, various control elements described and numbered in more detail below, and two piston / cylinder designs 7 and 8 can be opened and closed.
  • a suspension axis 10 slides downward in an elongated hole guide 11.
  • a on the same suspension axis rotatably mounted pendulum lever 12 also moves downwards and moves away from stops 13, so that due to the one-sided weight load a weight 14 strikes against the lever of a Kugelhahr.s 15 during further rotation about the axis 10 and this against the Force of a tension spring 16 opens.
  • the compressed air passes through a metering valve 34 into a distributor line 35 and thus onto the piston crown sides 36 and 37 of the piston / cylinder versions 7 and 8.
  • the piston rods 38 and 39 extend and initiate the closing movement of the gripper shells .
  • the pressure in the bottle 6 drops; the respective pressures can be read on a manometer 40.
  • the gripper is opened in such a way that the line 19 is first vented by actuating a ball valve 47.
  • the spring 24 pushes the piston 23 back into its starting position. With the relief of the angle lever 27 and the placement of the ball 29 on the seat 30, the connection of the lines 31 and 32 is interrupted.
  • the piston crown sides 36 and 37 are vented by actuating a ball valve 48 via a line 49.
  • a ball valve 48 As the pressure in the piston crown sides decreases, the increasing mean pressure on the piston rod sides 41 and 42, with simultaneous expansion of the mean pressure, causes the piston rods 38 and 39 to retract and thus opening the gripper shells. If there is no medium pressure, the specified pressure can be restored using a ball valve 50.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP82103291A 1982-04-20 1982-04-20 Benne preneuse à deux coquilles et un câble à usage sous-marin Withdrawn EP0091978A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP82103291A EP0091978A1 (fr) 1982-04-20 1982-04-20 Benne preneuse à deux coquilles et un câble à usage sous-marin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82103291A EP0091978A1 (fr) 1982-04-20 1982-04-20 Benne preneuse à deux coquilles et un câble à usage sous-marin

Publications (1)

Publication Number Publication Date
EP0091978A1 true EP0091978A1 (fr) 1983-10-26

Family

ID=8188995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82103291A Withdrawn EP0091978A1 (fr) 1982-04-20 1982-04-20 Benne preneuse à deux coquilles et un câble à usage sous-marin

Country Status (1)

Country Link
EP (1) EP0091978A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105181380A (zh) * 2015-10-11 2015-12-23 中国林业科学研究院资源昆虫研究所 一种水下原状土壤采样器

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR345767A (fr) * 1904-08-23 1904-12-15 Nicolas Savon Benne dragueuse pour le chargement et le déchargement de matières quelconques déposées en vrac
FR1327125A (fr) * 1962-04-02 1963-05-17 Bennes Automatiques Gallia Système de commande électro-hydraulique pour bennes preneuses, grappins multigriffes, pinces de manutention ou dispositifs équivalents
US3126115A (en) * 1964-03-24 Cable operated hydraulic actuator
US3310335A (en) * 1965-10-13 1967-03-21 Neil E Shuey Load lifting mechanism
GB1068946A (en) * 1962-12-06 1967-05-17 Fehlmann Hans Beat Improvements in or relating to a method of excavation and an apparatus for carrying it out
US3676052A (en) * 1969-11-03 1972-07-11 Us Agriculture Polypropylene glycols and substituted polypropylene glycols are used in conjunction with crosslinking agents to produce durable press fabrics with improved soil release performance
DE2341264A1 (de) * 1972-08-22 1974-02-28 Lespinasse Pierre Vorrichtung zur materialaufnahme auf dem boden von gewaessern
US3804452A (en) * 1972-08-08 1974-04-16 Etat Fr Defence Nationale Dele Lifting grapple
FR2211392A1 (fr) * 1972-12-20 1974-07-19 Saipem Spa
DE2518997B1 (de) * 1975-04-29 1976-04-29 Gruen & Bilfinger Ag An einem seilzug aufgehaengter, hydraulisch betaetigbarer greifer
US3985384A (en) * 1975-09-29 1976-10-12 Mcginnes Manufacturing Company Hydraulic apparatus for grab device
FR2390363A1 (fr) * 1977-05-09 1978-12-08 Lombardo Pierre Benne preneuse a deux machoires radio-guide
GB2062569A (en) * 1979-11-13 1981-05-28 Demag Ag Mannesmann Operating grabs

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126115A (en) * 1964-03-24 Cable operated hydraulic actuator
FR345767A (fr) * 1904-08-23 1904-12-15 Nicolas Savon Benne dragueuse pour le chargement et le déchargement de matières quelconques déposées en vrac
FR1327125A (fr) * 1962-04-02 1963-05-17 Bennes Automatiques Gallia Système de commande électro-hydraulique pour bennes preneuses, grappins multigriffes, pinces de manutention ou dispositifs équivalents
GB1068946A (en) * 1962-12-06 1967-05-17 Fehlmann Hans Beat Improvements in or relating to a method of excavation and an apparatus for carrying it out
US3310335A (en) * 1965-10-13 1967-03-21 Neil E Shuey Load lifting mechanism
US3676052A (en) * 1969-11-03 1972-07-11 Us Agriculture Polypropylene glycols and substituted polypropylene glycols are used in conjunction with crosslinking agents to produce durable press fabrics with improved soil release performance
US3804452A (en) * 1972-08-08 1974-04-16 Etat Fr Defence Nationale Dele Lifting grapple
DE2341264A1 (de) * 1972-08-22 1974-02-28 Lespinasse Pierre Vorrichtung zur materialaufnahme auf dem boden von gewaessern
FR2211392A1 (fr) * 1972-12-20 1974-07-19 Saipem Spa
DE2518997B1 (de) * 1975-04-29 1976-04-29 Gruen & Bilfinger Ag An einem seilzug aufgehaengter, hydraulisch betaetigbarer greifer
US3985384A (en) * 1975-09-29 1976-10-12 Mcginnes Manufacturing Company Hydraulic apparatus for grab device
FR2390363A1 (fr) * 1977-05-09 1978-12-08 Lombardo Pierre Benne preneuse a deux machoires radio-guide
GB2062569A (en) * 1979-11-13 1981-05-28 Demag Ag Mannesmann Operating grabs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105181380A (zh) * 2015-10-11 2015-12-23 中国林业科学研究院资源昆虫研究所 一种水下原状土壤采样器

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE FR GB IT LU NL SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: PREUSSAG AG

Owner name: PEINER MASCHINEN- UND SCHRAUBENWERKE AG

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19840202

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BURKHARDT, JUERGEN

Inventor name: BRENDECKE, MANFRED