EP0018075A1 - Vorrichtung zur Belastungsprüfung - Google Patents

Vorrichtung zur Belastungsprüfung Download PDF

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Publication number
EP0018075A1
EP0018075A1 EP80300725A EP80300725A EP0018075A1 EP 0018075 A1 EP0018075 A1 EP 0018075A1 EP 80300725 A EP80300725 A EP 80300725A EP 80300725 A EP80300725 A EP 80300725A EP 0018075 A1 EP0018075 A1 EP 0018075A1
Authority
EP
European Patent Office
Prior art keywords
bag
envelope
flexible
weight testing
bags
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
Application number
EP80300725A
Other languages
English (en)
French (fr)
Other versions
EP0018075B1 (de
Inventor
Graham Abraham Arthur
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.)
WATER WEIGHTS LIMITED
Original Assignee
WATER WEIGHTS (INTERNATIONAL) 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 WATER WEIGHTS (INTERNATIONAL) Ltd filed Critical WATER WEIGHTS (INTERNATIONAL) Ltd
Publication of EP0018075A1 publication Critical patent/EP0018075A1/de
Application granted granted Critical
Publication of EP0018075B1 publication Critical patent/EP0018075B1/de
Expired 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
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/88—Safety gear
    • B66C23/90—Devices for indicating or limiting lifting moment

Definitions

  • the present invention relates to weight testing methods and apparatus and particularly to methods and apparatus for testing the lifting strength of hoists, winches, cranes and similar lifting devices.
  • weight testing equipment has comprised heavy and bulky weights of metal or concrete having means for attachment to a carrying structure which incorporates a dynamometer or other load measuring meter which indicates the total load borne by the hoist or crane and the inertial stress due to acceleration of the rate of lifting.
  • Such testing equipment has frequently to be transported to a site or work centre for use. This can involve the transportation of weights which may be of the order of 40 tonnes or more and the storage of these weights when they are not in use. Both the transportation and storage of weights of this order creates many problems and costs.
  • a weight testing bag comprising a flexible envelope of liquid impervious material, a closable liquid outlet adjacent one end of the envelope and a liquid inlet adjacent the other end of the envelope and means for suspending the bag from a support.
  • the bag may include a plurality of flexible strengthening elements on the outside of the flexible envelope extending from the bottom of the envelope and each having means for attachment to a support.
  • the bag may further include a flexible outlet tube, the outlet tube extending from the bottom of the flexible envelope and being of a length such that its outer end can be positioned above the upper end of the flexible envelope.
  • the bag may be open topped and can then be filled easily through the open top and emptied through the flexible outlet tube.
  • the flexible outlet tube can be attached to the side of the flexible envelope with the top of the tube located adjacent the top of the envelope during the filling operation and when the bag is in use.
  • the bag can be adapted to support a second bag suspended below the first by providing a load carrying cable which extends through the flexible envelope from top to bottom, the lower end of the cable which is located outside and below the flexible element carrying means for suspending another bag therefrom and the upper end of the cable having means for attachment to a support.
  • the cable extends through a sleeve which is jointed in a fluid sealed relationship to the bottom of the flexible envelope and which extends upwardly to a point adjacent the upper end of the flexible envelope.
  • the bag In use, the bag can be transported to the site in an empty flat, folded or rolled up condition, suspended from the winch or crane to be tested and then filled with water to a predetermined level necessary for the application of the specified testing load. When the test has been completed, the bag can be emptied by lowering the flexible outlet tube, the empty bag removed from the winch, packed and transported to the next site of use.
  • a plurality of the flexible fluid impervious bags of the present invention may be suspended from a support frame comprising a node and a plurality of arms extending outwardly from the node, the arms being equiangularly spaced around the node and each arm having means adjacent its outer end for attaching a bag thereto.
  • the outer ends of the adjacent arms of the support frame may be joined by links adapted to spread a transverse load applied to any one arm equally throughout the structure and the support frame may be suspended from a single load carrying boss by a plurality of cables each of which extends from the boss and through a sleeve at or adjacent an outer end of an arm.
  • an inlet manifold may be provided on the support frame for filling the bags.
  • a weight testing bag of the present invention is indicated generally at 10.
  • the weight testing bag 10 comprises a flexible envelope 11 which is generally pear shaped and which is made from a fluid impervious material such as reinforced polyvinyl chloride or neoprene.
  • the envelope 11 is open topped at 12 and has an outlet 13 at the bottom leading to a flexible outlet tube 14.
  • the flexible outlet tube 14 is of a length such that it can be raised and attached to the side of the envelope by a strap 15 so that its upper end 16 is located above the upper end of the envelope 11.
  • the envelope 11 is supported by a plurality of strengthening straps 17 made of webbing or any other similar material.
  • the straps 17 extend from the bottom of the envelope upwardly through sleeves 18 which are attached to the outer surface of the envelope.
  • Each strap terminates in an eye 19 which is attached to a shackle 20 which is itself mounted on a support boss 21 having an upwardly extending hook 22 which enables the bag to be easily suspended from a piece of apparatus to be weight tested.
  • the hook 22 may alternatively be replaced by a conventional shackle arrangement if this is preferred.
  • a load carrying cable 23 extends through the envelope 11 from top to bottom.
  • the upper end of the cable 23 terminates in a hook 24 which can be easily attached to a hook or eye 25 which is integral with the boss 21 and the lower end of the cable 23 terminates in an eye 26 which enables a second bag to be suspended below the first bag.
  • the cable 23 extends through a sleeve 27, the bottom end of which is joined in a fluid sealed relationship to the bottom of the envelope 11 so as to form an outlet 28 at the bottom of the envelope for the cable 23.
  • the upper end of the sleeve 27 extends approximately to the upper end of the envelope 11 so that the cable is sealed from the contents of the bag at all times.
  • the bag in its unfilled condition can be attached to a winch or other piece of apparatus to be weight tested by means of the hook 22.
  • the outlet tube 14 is then attached in its upright position by means of the strap 15 and the bag can be filled with water or any other liquid through the open top of the envelope 11.
  • the capacity of the bag 10 will be known and it can be filled to an extent sufficient to provide the required weight test.
  • the bag can be quickly and easily emptied by releasing the outlet tube 14 and allowing it to fall away from the upper end of the bag.
  • the bag is then emptied under gravity through the outlet tube 14. When the bag has been emptied it can then be removed from the apparatus being tested, folded and transported to its next site of use.
  • two or more of the bags 10 may be suspended from a single hook or eye 29 and a second tier of bags suspended below the first tier from the eyes 26.
  • This spacing frame is indicated generally at 30 in Figures 5 to 7.
  • the spacing frame 30 comprises a central node 31 carrying six similar arms 32 which extend radially outwardly from the node 31.
  • the arms 32 are slotted into sockets provided in the node 31 and are equiangularly positioned around the node.
  • the outer ends of the arms 32 are joined by links 34 which are adapted to spread a load applied to any one arm equally throughout the support frame.
  • the frame 30 is suspended from a single load carrying boss 35 by a plurality of load carrying cables 36 each one of which extends from the boss 35 to an outer end of an arm 32, where it passes through a sleeve 37.
  • the end of each cable 36 carries an eye 38 from which a bag 10 can be suspended by its hook 22.
  • an empty bag 10 is suspended on a cable 36 beneath each of the six arms 32 and the boss 35 is then suspended from the piece of apparatus to be weight tested by means of a U-shaped hook 39 which extends upwardly from the boss 35.
  • a U-shaped hook 39 which extends upwardly from the boss 35.
  • the support frame 30 may therefore be provided with three inlet manifolds which are not shown but which may be mounted on the arms 32 and adapted to fill two diametrically opposite bags simultaneously. This ensures that a substantial weight imbalance cannot occur as the bags are filled.
  • a second tier of bags 10a can be suspended below the first tier of bags as shown in Figure 7.
  • the manifolds on the support frame are also preferably designed to minimise turbulence in the filling of the bags.
  • the metal components may be made as far.as possible from duralumin so as to provide a rust-resistant extremely lightweight construction in relation to the weight or mass provided when the bag or bags are filled to the required extent.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Examining Or Testing Airtightness (AREA)
EP19800300725 1979-03-07 1980-03-07 Vorrichtung zur Belastungsprüfung Expired EP0018075B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7908069 1979-03-07
GB7908069 1979-03-07

Publications (2)

Publication Number Publication Date
EP0018075A1 true EP0018075A1 (de) 1980-10-29
EP0018075B1 EP0018075B1 (de) 1985-10-30

Family

ID=10503699

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800300725 Expired EP0018075B1 (de) 1979-03-07 1980-03-07 Vorrichtung zur Belastungsprüfung

Country Status (3)

Country Link
EP (1) EP0018075B1 (de)
DE (1) DE3071206D1 (de)
GB (1) GB2047414B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0169063A1 (de) * 1984-07-17 1986-01-22 Water Weights Limited Tragmodul und Baugruppe für Beladungstestsäcke
GB2288668A (en) * 1994-03-11 1995-10-25 Water Weights Ltd Weight testing apparatus
FR2768225A1 (fr) * 1997-09-10 1999-03-12 Pb Ems Sac souple impermeable, pour essai de charge en suspension
EP1034414A1 (de) * 1997-11-25 2000-09-13 Choon Loong Chong Verfahren und vorrichtung zur herstellung einer last
CN103754468A (zh) * 2014-01-09 2014-04-30 无锡沃特力材料科技有限公司 起重机用试重水袋
WO2014177920A1 (en) * 2013-05-03 2014-11-06 Atrac Inc. Proof load bag system and method
CN106226101A (zh) * 2016-07-30 2016-12-14 青岛蓝天创先科技服务有限公司 一种可折叠的桥式起重机静荷载试验配重水袋及吊架
CN108398178A (zh) * 2018-01-17 2018-08-14 山东钢铁集团日照有限公司 一种大量程行车秤快捷校验方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133896B (en) * 1983-01-19 1986-06-25 Structure Flex Limited Load testing by water bags
US4640328A (en) * 1984-05-16 1987-02-03 Arney D B Collapsible liquid container particularly for transportation by helicopter
GB2163859B (en) * 1984-07-17 1988-02-10 Water Weights Ltd Weight testing apparatus
DE69524449D1 (de) * 1995-09-21 2002-01-17 Water Weights Ltd Vorrichtung zur belastungsprüfung
US6494103B1 (en) 1997-11-25 2002-12-17 Chong Choon Loong Load creation apparatus and method
NO329390B1 (no) * 2009-07-28 2010-10-11 Mongstad Test Eiendom As Beholder til bruk som vannvekt og eventuelt for lagring og transport av vaesker, og anvendelser derav
DE102013219072A1 (de) * 2013-09-23 2015-03-26 Wacker Chemie Ag Verwendung von flexiblen Behältern zur Lagerung von Flüssigkeiten

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10466C (de) * Aktien-Gesellschaft für Eisenindustrie und Brückenbau, vorm. J. C. harkort in Duisburg Träger-Probirmaschine
DE759995C (de) * 1940-10-31 1953-01-05 Gottlob Dr-Ing Barner Verfahren und Vorrichtung zum Erkennbarmachen der Spannungs-verteilung an Konstruktions- und Maschinenteilen
GB783407A (en) * 1956-05-31 1957-09-25 Us Rubber Co Improvements in collapsible container
CH362980A (fr) * 1959-07-30 1962-06-30 Ets Poliet & Chausson Réservoir souple pour produits pulvérulents et granuleux
DE976872C (de) * 1953-12-08 1964-07-02 Hans Liebherr Kippsicherung fuer leichte Turmdrehkrane
FR1484956A (fr) * 1966-06-27 1967-06-16 Dispositif destiné aux essais de charge, notamment pour le contrôle de la résistance de constructions, de véhicules automobiles, bascules ou autres
DE1756844A1 (de) * 1968-05-27 1970-08-20 Schwermaschb S M Kirow Veb Justageeinrichtung fuer Lastmomentensicherungen und Pruefbelastungen an ortsveraenderlichen Drehkranen
DE1911962A1 (de) * 1969-03-10 1970-09-17 Gerhard Reuter Einrichtung zum UEberpruefen von UEberlastsicherungen an Hebezeugen
DE2140779A1 (de) * 1971-08-13 1973-03-01 Pietzsch Ludwig Verfahren und vorrichtung zum bestimmen der grenzbelastungen von auslegerkranen
FR2296171A1 (fr) * 1974-12-27 1976-07-23 Delattre Levivier Elements modulaires pour constitution de charges d'epreuve, et charges realisees au moyen de ces elements
DE2804404A1 (de) * 1978-02-02 1979-08-09 Erwin Fischer Ballastsack mit definiertem gewicht

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10466C (de) * Aktien-Gesellschaft für Eisenindustrie und Brückenbau, vorm. J. C. harkort in Duisburg Träger-Probirmaschine
DE759995C (de) * 1940-10-31 1953-01-05 Gottlob Dr-Ing Barner Verfahren und Vorrichtung zum Erkennbarmachen der Spannungs-verteilung an Konstruktions- und Maschinenteilen
DE976872C (de) * 1953-12-08 1964-07-02 Hans Liebherr Kippsicherung fuer leichte Turmdrehkrane
GB783407A (en) * 1956-05-31 1957-09-25 Us Rubber Co Improvements in collapsible container
CH362980A (fr) * 1959-07-30 1962-06-30 Ets Poliet & Chausson Réservoir souple pour produits pulvérulents et granuleux
FR1484956A (fr) * 1966-06-27 1967-06-16 Dispositif destiné aux essais de charge, notamment pour le contrôle de la résistance de constructions, de véhicules automobiles, bascules ou autres
DE1756844A1 (de) * 1968-05-27 1970-08-20 Schwermaschb S M Kirow Veb Justageeinrichtung fuer Lastmomentensicherungen und Pruefbelastungen an ortsveraenderlichen Drehkranen
DE1911962A1 (de) * 1969-03-10 1970-09-17 Gerhard Reuter Einrichtung zum UEberpruefen von UEberlastsicherungen an Hebezeugen
DE2140779A1 (de) * 1971-08-13 1973-03-01 Pietzsch Ludwig Verfahren und vorrichtung zum bestimmen der grenzbelastungen von auslegerkranen
FR2296171A1 (fr) * 1974-12-27 1976-07-23 Delattre Levivier Elements modulaires pour constitution de charges d'epreuve, et charges realisees au moyen de ces elements
DE2804404A1 (de) * 1978-02-02 1979-08-09 Erwin Fischer Ballastsack mit definiertem gewicht

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0169063A1 (de) * 1984-07-17 1986-01-22 Water Weights Limited Tragmodul und Baugruppe für Beladungstestsäcke
GB2288668A (en) * 1994-03-11 1995-10-25 Water Weights Ltd Weight testing apparatus
GB2288668B (en) * 1994-03-11 1997-03-26 Water Weights Ltd Weight testing apparatus
FR2768225A1 (fr) * 1997-09-10 1999-03-12 Pb Ems Sac souple impermeable, pour essai de charge en suspension
WO1999012838A1 (fr) * 1997-09-10 1999-03-18 Pb Ems Sac souple impermeable, pour essai de charge en suspension
EP1034414A1 (de) * 1997-11-25 2000-09-13 Choon Loong Chong Verfahren und vorrichtung zur herstellung einer last
EP1034414A4 (de) * 1997-11-25 2001-10-24 Choon Loong Chong Verfahren und vorrichtung zur herstellung einer last
WO2014177920A1 (en) * 2013-05-03 2014-11-06 Atrac Inc. Proof load bag system and method
CN103754468A (zh) * 2014-01-09 2014-04-30 无锡沃特力材料科技有限公司 起重机用试重水袋
CN106226101A (zh) * 2016-07-30 2016-12-14 青岛蓝天创先科技服务有限公司 一种可折叠的桥式起重机静荷载试验配重水袋及吊架
CN108398178A (zh) * 2018-01-17 2018-08-14 山东钢铁集团日照有限公司 一种大量程行车秤快捷校验方法

Also Published As

Publication number Publication date
DE3071206D1 (en) 1985-12-05
GB2047414B (en) 1983-02-09
GB2047414A (en) 1980-11-26
EP0018075B1 (de) 1985-10-30

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