US3863511A - Apparatus for opening the sand discharging door for hopper barges - Google Patents

Apparatus for opening the sand discharging door for hopper barges Download PDF

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Publication number
US3863511A
US3863511A US404792A US40479273A US3863511A US 3863511 A US3863511 A US 3863511A US 404792 A US404792 A US 404792A US 40479273 A US40479273 A US 40479273A US 3863511 A US3863511 A US 3863511A
Authority
US
United States
Prior art keywords
door
sand
soil
shaft
opening
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.)
Expired - Lifetime
Application number
US404792A
Other languages
English (en)
Inventor
Keizo Kikui
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.)
Mitsui Engineering and Shipbuilding Co Ltd
Original Assignee
Mitsui Engineering and Shipbuilding Co 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 Mitsui Engineering and Shipbuilding Co Ltd filed Critical Mitsui Engineering and Shipbuilding Co Ltd
Application granted granted Critical
Publication of US3863511A publication Critical patent/US3863511A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/28—Barges or lighters
    • B63B35/30—Barges or lighters self-discharging
    • B63B35/306—Barges or lighters self-discharging discharging through dump-gates on the bottom or sides of the barge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2075—Coaxial drive motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • F16H25/2454—Brakes; Rotational locks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18576—Reciprocating or oscillating to or from alternating rotary including screw and nut
    • Y10T74/18704—Means to selectively lock or retard screw or nut

Definitions

  • the present invention relates to apparatus for openidly opened by gravity of sand or soil when the locking mechanism for the door is released.
  • all amount of sand or soil in a hopper is rapidly discharged in a short time. If sand or soil is dropped on the sludge deposite layer in the conventional manner, the dropped sand or soil sinks in the sludge deposite layer and the surface of deposited sand layer is covered by sludge. Consequently there is formed again a sludge deposite layer.
  • the object of the present invention is to provide apparatus for opening the sand discharging door for hopper barges which may discharge the sand little by little to form a sand sheet on the surface of the sludge deposite layer. lf weight of the sand sheet is less than the pressure endurance limit of the sludge deposite layer, the above difficulties do not arise.
  • numeral 1 designates a tension bar joined to the sand discharging door.
  • the end of the tension bar is joined to a prismatic cylinder 2 which is supported to be slidable and not rotatable by a guide 3, and a shaft 5 having a helical groove 4 is inserted into the cylinder 2.
  • Balls 6 are rotatably engaged with the helical groove 4 and the groove provided inside wall of the cylinder 2.
  • the shaft 5 is supported by bearings 7, 8 and has a flange 9 abutting on the side wall of the bearing 7.
  • the end of the shaft 5 is connected to an oil motor 10 for rotating it. It is also provided with a brake means 11.
  • FIG. 1 shows a condition where the sand discharging door is closed, with the brake 11 working to lock the shaft 5.
  • the brake 11 is loosened, whereby the tension bar 1 and cylinder 2 are forced to move to the left by the weight of the sand.
  • the movement of the cylinder 2 causes to rotate the shaft 5 because of engagement of its helical groove 4 with the balls 6, thereby the cylinder 2 and the tension bar 1 is very slowly moved, so that the door is slowly and gradually opened.
  • the door opening speed can be controlled by adjusting the brake 11.
  • the oil motor 10 is operated to rotate the shaft 5 in the opposite direction to the said rotation in opening operation, whereby the cylinder 2 is moved to the right to close the door.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
US404792A 1972-10-12 1973-10-09 Apparatus for opening the sand discharging door for hopper barges Expired - Lifetime US3863511A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1972118140U JPS5154231Y2 (en, 2012) 1972-10-12 1972-10-12

Publications (1)

Publication Number Publication Date
US3863511A true US3863511A (en) 1975-02-04

Family

ID=14729041

Family Applications (1)

Application Number Title Priority Date Filing Date
US404792A Expired - Lifetime US3863511A (en) 1972-10-12 1973-10-09 Apparatus for opening the sand discharging door for hopper barges

Country Status (6)

Country Link
US (1) US3863511A (en, 2012)
JP (1) JPS5154231Y2 (en, 2012)
DE (1) DE2351170A1 (en, 2012)
FR (1) FR2202808A1 (en, 2012)
GB (1) GB1447285A (en, 2012)
NL (1) NL7313855A (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1840310A1 (en) * 2006-03-31 2007-10-03 Valeo Sicherheitssysteme GmbH Adjusting device having a spindle drive

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2504884A1 (fr) * 1981-05-04 1982-11-05 Maurras Jean Winch de wishbone
DE19832306C2 (de) * 1998-06-19 2003-03-27 Weber Hydraulik Gmbh Vorrichtung mit einer Steuerstange und mit einem von dieser betätigten Steuerhebel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US465724A (en) * 1891-12-22 Sand-scow
US2627355A (en) * 1947-07-12 1953-02-03 Murray & Tregurtha Inc Cargo carrier
US3398484A (en) * 1965-06-04 1968-08-27 Katsumura Toru Car door actuator
US3426715A (en) * 1967-08-29 1969-02-11 Valentino L Balbi Refuse disposal system and apparatus
US3465604A (en) * 1967-04-20 1969-09-09 Harlan Moore Drive mechanism for drilling apparatus and the like

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US465724A (en) * 1891-12-22 Sand-scow
US2627355A (en) * 1947-07-12 1953-02-03 Murray & Tregurtha Inc Cargo carrier
US3398484A (en) * 1965-06-04 1968-08-27 Katsumura Toru Car door actuator
US3465604A (en) * 1967-04-20 1969-09-09 Harlan Moore Drive mechanism for drilling apparatus and the like
US3426715A (en) * 1967-08-29 1969-02-11 Valentino L Balbi Refuse disposal system and apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1840310A1 (en) * 2006-03-31 2007-10-03 Valeo Sicherheitssysteme GmbH Adjusting device having a spindle drive
WO2007113273A1 (en) * 2006-03-31 2007-10-11 Valeo Sicherheitssysteme Gmbh Adjusting device having a spindle drive

Also Published As

Publication number Publication date
FR2202808A1 (en, 2012) 1974-05-10
GB1447285A (en) 1976-08-25
JPS4973184U (en, 2012) 1974-06-25
DE2351170A1 (de) 1974-04-18
NL7313855A (en, 2012) 1974-04-16
JPS5154231Y2 (en, 2012) 1976-12-24

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