US3570684A - Overhead cranes - Google Patents

Overhead cranes Download PDF

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Publication number
US3570684A
US3570684A US748401A US3570684DA US3570684A US 3570684 A US3570684 A US 3570684A US 748401 A US748401 A US 748401A US 3570684D A US3570684D A US 3570684DA US 3570684 A US3570684 A US 3570684A
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United States
Prior art keywords
trolley
load
alongside
pulley wheel
sidewall
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
US748401A
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English (en)
Inventor
William Graham Cowan
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.)
JH Carruthers and Co Ltd
Original Assignee
JH Carruthers and 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 JH Carruthers and Co Ltd filed Critical JH Carruthers and Co Ltd
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Publication of US3570684A publication Critical patent/US3570684A/en
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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
    • B66C7/00—Runways, tracks or trackways for trolleys or cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00—Trolleys or crabs, e.g. operating above runways
    • B66C11/02—Trolleys or crabs, e.g. operating above runways with operating gear or operator's cabin suspended, or laterally offset, from runway or track
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00—Trolleys or crabs, e.g. operating above runways
    • B66C11/16—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear
    • B66C11/18—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear comprising endless ropes or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C6/00—Girders, or track-supporting structures, specially adapted for cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/01—General aspects of mobile cranes, overhead travelling cranes, gantry cranes, loading bridges, cranes for building ships on slipways, cranes for foundries or cranes for public works
    • B66C2700/012—Trolleys or runways

Definitions

  • the transverse beam consists of a single longitudinal member from which a trolley having a hoist rope for receiving the load is suspended, while in an other known crane of this kind the beam consists of two spaced parallel longitudinal members and the trolley is supported on the members and the trolley is supported on the members and between same.
  • the trolley usually includes electrically-operable driving means for the trolley and an electrically-operable winding device for the hoist rope.
  • the height of the resulting combination is considerable and, if the crane is to be housed, necessitates the erection of a relatively high building for a given load lift. Moreover, the resulting combination is of necessity large, and consequently the the traversing movement of the trolley is short, that is, the floor area covered by the hoist is limited.
  • an overhead crane comprising a transverse overhead beam, a pair of carriages supporting the ends of the beam and forming with the beam a longitudinally movable structure, a trolley carried by the beam for traversing movement along the beam, poweroperable driving means for the trolley, and hoisting means including a power-operable winding device and a hoist rope extending from the'winding device and depending from the trolley to receive the load, wherein the winding device is mounted on the structure.
  • the hoisting means consists of a winding device mounted on one end carriage, a pulley wheel mounted on the second end carriage, a pair of side-by-side pulley wheels mounted on the trolley, a load receiving pulley wheel located under the trolley, and a hoist rope extending alongside the beam from the winding device, around the pulley wheel on the second carriage, alongside the beam, over the pulley wheels on the trolley in a U-loop which carries the load receiving pulley wheel, and alongside the beam to the second end carriage, the arrangement being such that the height of the load receiving pulley wheel is unaffected by the traversing movement of the trolley.
  • the beam is of box section and the trolley is mounted externally of and alongside a sidewall of the beam so as to load the beam torsionally.
  • H6. 1 is a top perspective view of an overhead crane
  • FIG. 2 is a top plan view of FIG. 1;
  • FIG. 3 is a side view of the crane
  • FIG. 4 is an enlarged sectional end view on the line A-A of FIG. 3;
  • FIG. 5 is a view corresponding to that shown in FIG. 4 of a modified trolley.
  • an overhead crane consists of a transverse overhead beam 10, a pair of carriages 11, 12 supporting the ends of the beam and forming with the beam a longitudinally movable structure, a trolley 13 carried by the beam 10 for traversing movement along the beam, and load hoisting means including a hoist rope 14 depending in loop form'from the trolley 13 with the loop engaging around a load receiving pulley wheel or snatch block 15.
  • the beam Ill as is best shown in FIG. 4, is of box section and the trolley 13 is mounted for traversing movement externally of the beam 10 alongside a sidewall 10A thereof so as to load the beam torsionally.
  • the sidewall 10A has upper and lower tracks 16, 17 on which the trolley 13 is mounted, the upper track 16 being of box section and being suspended from cantilevers 18 secured at spaced intervals to the upper face 103 of the beam 10, so as to present an inwardly facing vertically disposed bearing surface 16A to the sidewall WA.
  • the lower track 17 is also of box section and is secured to the lower portion of the sidewall 10A so as to present a horizontally disposed bearing surface 17A and a vertically disposed bearing surface 17B.
  • the trolley 13 includes a frame 21 composed of box section members carrying two spaced-apart upright load bearing wheels 19 and two spaced apart horizontal wheels 19A arranged respectively to run on the horizontally and vertically disposed bearing surfaces 17A, 17B, of the lower track 17, and two spaced-apart horizontal wheels 20 arranged to run on the bearing surface 16A of the upper track 16.
  • the frame 21 extends outwardly from the sidewall 10A to support a load bearing platform 25 carrying fore-and-aft pulley wheels 22 which support the hoist rope l4 and the snatch block 15, the dimensions of the platform 25 and the pulley wheels 22 being such that the trolley 13 is accommodated within the overall height of the beam 10.
  • the wheels 19, 19A, 20 each have rims made of resiliently compressible rubberlike material, such for example as polyurethane.
  • the stretches of the hoist rope 14 have extensions which pass in opposite directions around the pulley wheels 22 and alongside the beam 10 to the carriages 11, 12, one extension ending at and being anchored to the carriage 11 and the other extension passing first around a guide pulley 23 (FIGS. 2 and 3) on the carriage 12 and then alongside the beam 10 to power-operated winding means in the form of a winding device 24 and a driving motor thereof (so called hoist block) mounted on the inner sidewall 11B of the carriage 11 so that traversing movement of the trolley- 13 does not affect the height of the load on the hoist rope 14.
  • Power-operable driving means for traversing the trolley 13 includes a driving motor and winch 30 mounted within the carriage 12 beneath the hoist guide pulley 23, and a traversing guide pulley 30A mounted on the carriage 11.
  • a traversing rope 33 extends from the winch 30 around the guide pulley on the carriage 11, and is anchored to the frame 21 of the trolley l3,'and the other end portion of the rope 33 extends directly to and is anchored at the frame 21. In this manner an endless trolley traversing rope is formed.
  • Driving motors 31 for longitudinal movement, of the beam 10 are mounted on the inner sidewalls 11B, 12B of the end carriages 1 I, 12 and are operatively connected to the carriage wheels through reduction gearing.
  • the driving, winding, and traversing motors 31., 24, 30 are electric and are controlled from a panel 32 mounted on the inner sidewall 11B of the carriage 11.
  • a modified trolley 13' of increased load bearing capacity is shown in FIG. 5 and includes a frame 21 extending outwardly from the sidewall 10A of the beam 10 to support a load bearing platform 25' carrying spacedpairs of fore-and-aft pulley wheels 22 which support the hoist rope l4 and the snatch block 15, and the frame carries wheels 19', 19A, 20' arranged to run on the tracks 16, 17 of the beam 10 in a manner similar to that described with reference to FIG. 4. In this instance however the load bearing wheels 19 and the pulley wheels of the snatch block 15 are arranged in pairs in order to compensate for the greater load bearing capacity of the trolley.
  • the overhead beam is of inverted- U section and the trolley is mounted for traversing movement within the beam.
  • the walls of the beam may consist of I-beams, the webs of which, having been previously formed of castellated strip, have series of hexagonal apertures therein which substantially reduce the weight of the beam.
  • traversing movement of the trolley 13 is effected through the rope-and-pulley gearing by remote operation of the electrical motor and winch 30.
  • Hoisting is similarly effected through the hoist rope-and-pulley gearing by remote operation of the electrical motor and winch 2%.
  • the trolley is reduced to a simple wheeled frame carrying pulley wheels thereon and it can be made very compact so as to be readily accommodated within the overall height ofthe overhead beam.
  • the trolley can be foreshortened to an extent that permits close approach thereof to the end carriages so that the hoist covers'a maximum of floor space.
  • the trolley is small and lightweight it is possible to provide a relatively lightweight overhead beam, which means that the crane is of minimal deadweight and is economical to manufacture.
  • a crane comprising a transverse overhead beam, a pair of carriages supporting the ends of the beam and forming with the beam a longitudinally movable structure, a trolley carried by the beam for traversing movement along the beam, traverse means for moving the trolley along the beam and hoisting means for a hoist rope depending from the trolley; the improvement comprising mounting means for the trolley alongside a sidewall of the beam and externally thereof to load the beam torsionally, power operable driving means for said traverse and hoisting means mounted on said structure, said hoisting means comprising a winding device mounted on one end carriage, a pulley wheel mounted on the other end carriage, a pair of side-by-side pulley wheels mounted on the trolley, a load receiving pulley wheel located under the trolley, and a hoist rope extending alongside the beam from the winding device, around the pulley wheel on said other carriage alongside the beam, over the pulley wheels on the trolley in a U-loop which carries the load receiving pulley wheel, and alongside the beam

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
US748401A 1967-08-09 1968-07-29 Overhead cranes Expired - Lifetime US3570684A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3648167 1967-08-09
GB58851/67A GB1200075A (en) 1967-08-09 1967-12-22 Improvements in or relating to overhead cranes

Publications (1)

Publication Number Publication Date
US3570684A true US3570684A (en) 1971-03-16

Family

ID=26263135

Family Applications (1)

Application Number Title Priority Date Filing Date
US748401A Expired - Lifetime US3570684A (en) 1967-08-09 1968-07-29 Overhead cranes

Country Status (9)

Country Link
US (1) US3570684A (de)
BE (1) BE719205A (de)
DE (2) DE1781441A1 (de)
FR (1) FR1575394A (de)
GB (1) GB1200075A (de)
LU (1) LU56689A1 (de)
NL (1) NL6811299A (de)
NO (1) NO133751C (de)
SE (1) SE342027B (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3790111A (en) * 1971-10-01 1974-02-05 France Etat Apparatus for docking a helicopter
US20070240971A1 (en) * 2006-04-18 2007-10-18 Barry Kitazumi Transport System Including Vertical Rollers
US20070289843A1 (en) * 2006-04-18 2007-12-20 Barry Kitazumi Conveyor System Including Offset Section
US20080050208A1 (en) * 2006-08-25 2008-02-28 Barry Kitazumi High speed transporter including horizontal belt
US7434678B1 (en) 2007-06-14 2008-10-14 Aquest Systems Corporation Systems and methods for transport through curved conveyance sections
US7441648B1 (en) 2007-06-14 2008-10-28 Aquest Systems Corporation Systems and methods for transport through curves
WO2008130389A1 (en) * 2007-04-18 2008-10-30 Aquest Systems Corporation Integrated overhead transport system with stationary drive
NL2007278C2 (nl) * 2011-08-19 2013-02-21 Koat B V Inrichting voor het verplaatsen van lege dozen.
CN113818364A (zh) * 2021-10-14 2021-12-21 上海公路桥梁（集团）有限公司 高架桥的梁体运架装置及更换方法

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106641A (en) * 1976-03-17 1978-08-15 Algoship International Limited Universal gantry crane
DE3006611C2 (de) * 1980-02-22 1983-12-29 Siegfried 8922 Peiting Schuster Antriebsmechanismus für einen Auslegerkran
US5445282A (en) * 1989-02-17 1995-08-29 Erikkila Ky Transport means for transporting pieces three-dimensionally
FI86291C (fi) * 1989-02-17 1992-08-10 Erikkilae Ky Foerflyttningsanordning.
DE4126508A1 (de) * 1991-08-07 1993-02-11 Mannesmann Ag Kran
FI122352B (fi) 2010-01-21 2011-12-15 Konecranes Oyj Siltanosturi
WO2012019826A1 (de) * 2010-08-13 2012-02-16 Harald Stuehrenberg Vorrichtung zum verfahren von lasten mit zumindest teilweisem gewichtsausgleich
CN102180405B (zh) * 2011-04-29 2013-05-08 宁波市凹凸重工有限公司 桥门式起重机用小车
CN106081901A (zh) * 2016-08-10 2016-11-09 河南新科起重机股份有限公司 一种新型smd卷扬小车
CN107010539B (zh) * 2017-04-28 2018-12-11 烟台福皓医疗设备有限公司 一种气压过渡舱主舱用新型吊梁

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US563259A (en) * 1896-07-07 Island
US903601A (en) * 1908-05-12 1908-11-10 Lynn H Miller Traveling-crane.
FR805099A (fr) * 1935-04-12 1936-11-10 Procédé pour le séchage du bois
CA506021A (en) * 1954-09-21 J. Getz Alfred Traveling shop hoist
US2792128A (en) * 1952-02-23 1957-05-14 Mckiernan Terry Corp Unloading tower
GB921052A (en) * 1959-09-08 1963-03-13 Evan Melfyn Lewis Improvements in or relating to travelling cranes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US563259A (en) * 1896-07-07 Island
CA506021A (en) * 1954-09-21 J. Getz Alfred Traveling shop hoist
US903601A (en) * 1908-05-12 1908-11-10 Lynn H Miller Traveling-crane.
FR805099A (fr) * 1935-04-12 1936-11-10 Procédé pour le séchage du bois
US2792128A (en) * 1952-02-23 1957-05-14 Mckiernan Terry Corp Unloading tower
GB921052A (en) * 1959-09-08 1963-03-13 Evan Melfyn Lewis Improvements in or relating to travelling cranes

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3790111A (en) * 1971-10-01 1974-02-05 France Etat Apparatus for docking a helicopter
US20070240971A1 (en) * 2006-04-18 2007-10-18 Barry Kitazumi Transport System Including Vertical Rollers
US20070289843A1 (en) * 2006-04-18 2007-12-20 Barry Kitazumi Conveyor System Including Offset Section
US7445111B2 (en) 2006-04-18 2008-11-04 Aquest Systems Corporation Transport system including vertical rollers
US20080050208A1 (en) * 2006-08-25 2008-02-28 Barry Kitazumi High speed transporter including horizontal belt
WO2008130389A1 (en) * 2007-04-18 2008-10-30 Aquest Systems Corporation Integrated overhead transport system with stationary drive
US7434678B1 (en) 2007-06-14 2008-10-14 Aquest Systems Corporation Systems and methods for transport through curved conveyance sections
US7441648B1 (en) 2007-06-14 2008-10-28 Aquest Systems Corporation Systems and methods for transport through curves
NL2007278C2 (nl) * 2011-08-19 2013-02-21 Koat B V Inrichting voor het verplaatsen van lege dozen.
CN113818364A (zh) * 2021-10-14 2021-12-21 上海公路桥梁（集团）有限公司 高架桥的梁体运架装置及更换方法

Also Published As

Publication number Publication date
NO133751B (de) 1976-03-15
FR1575394A (de) 1969-07-18
DE1781441A1 (de) 1973-04-12
DE1756948A1 (de) 1971-07-01
GB1200075A (en) 1970-07-29
BE719205A (de) 1969-01-16
NL6811299A (de) 1969-02-11
SE342027B (de) 1972-01-24
LU56689A1 (de) 1968-11-18
NO133751C (de) 1976-06-23
DE1756948B2 (de) 1973-07-12
DE1756948C3 (de) 1975-04-24

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