WO2024020698A1 - Appareil de levage - Google Patents

Appareil de levage Download PDF

Info

Publication number
WO2024020698A1
WO2024020698A1 PCT/CA2023/051021 CA2023051021W WO2024020698A1 WO 2024020698 A1 WO2024020698 A1 WO 2024020698A1 CA 2023051021 W CA2023051021 W CA 2023051021W WO 2024020698 A1 WO2024020698 A1 WO 2024020698A1
Authority
WO
WIPO (PCT)
Prior art keywords
arms
another
pair
lifting
guide
Prior art date
Application number
PCT/CA2023/051021
Other languages
English (en)
Inventor
Tony Guo
Original Assignee
Carego Tek Inc.
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 Carego Tek Inc. filed Critical Carego Tek Inc.
Publication of WO2024020698A1 publication Critical patent/WO2024020698A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/28—Duplicate, e.g. pivoted, members engaging the loads from two sides
    • B66C1/30—Duplicate, e.g. pivoted, members engaging the loads from two sides and also arranged to grip the sides of the loads
    • B66C1/32—Duplicate, e.g. pivoted, members engaging the loads from two sides and also arranged to grip the sides of the loads of piled or stacked articles
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
    • B66C9/14—Trolley or crane travel drives

Definitions

  • the invention relates to the field of overhead cranes.
  • Forming one aspect of the invention is apparatus for use with an overhead crane.
  • the overhead crane is of the type having: a pair of runway beams each having an end truck mounted thereto for translational movement; a bridge frame connecting the end trucks; a trolley mounted to the bridge frame for movement therealong; a winch arrangement connected to the trolley; and a wire rope arrangement extending from the winch arrangement.
  • the apparatus comprises a pair of stabilizing bars, a sheave arrangement, a frame, a pair of sleeves, a pair of lifting arms and a pair of guide arms.
  • the stabilizing bars project downwardly from the trolley.
  • the sheave arrangement in use, has the wire rope arrangement passing therethough use and is suspended thereby.
  • the frame is suspended from the sheave arrangement.
  • the sleeves project upwardly from the frame and are adapted such that, upon retraction of the wire rope, the sleeves are engaged by the stabilizing bars.
  • the lifting arms project downwardly from the frame, are spaced apart from one another along a principal axis that is horizontal and are mounted for movement along the principal axis between: an extended position whereat the lifting arms are relatively distal to one another; and a retracted position whereat the lifting arms are relatively proximal to one another.
  • the guide arms project downwardly from the frame, are spaced apart from one another along a secondary axis that is horizontal and perpendicular to the principal axis and are mounted for movement therealong between: an extended position whereat the guide arms are relatively distal to one another; and a retracted position whereat the guide arms are relatively proximal to one another.
  • the lifting arms can terminate in a pair of reentrant lips.
  • the lifting arms can project downwardly beyond the guide arms; the lifting arms can be adapted to support the underside of a pallet for transport by the crane; and the guide arms can be adapted to support a product borne by the pallet against tipping during transport.
  • the sleeves can be spaced apart from one another in the direction of the secondary axis.
  • each guide arm can terminate in a lip, the lips of the guide arms being adapted to assume a reentrant position.
  • the lifting arms can be adapted to support the underside of a plate for transport by the crane; and the lips of the guide arms, when in the reentrant position, can be adapted to support the edges of the plate against flexure during transport.
  • the sheave arrangement can comprises a sheave block disposed between the sleeves.
  • the sheave arrangement can comprise two pairs of sheave blocks, the pairs of sheave blocks being spaced apart from one another in the direction of the secondary axis, the blocks of the pair being spaced apart from one another in the direction of the primary axis.
  • each guide arm can have a limit switch positioned proximal to the reentrant lip, the limit switches of the guide arms being orientated towards one another and adapted to arrest inward movement of the guide arms when a load is operatively centered therebetween.
  • each lifting arm can have a limit switch positioned proximal to the reentrant lip, the limit switches of the lifting arms being orientated towards one another and adapted to arrest inward movement of the lifting arms when a load is operatively captured therebetween.
  • the apparatus can further comprise a principal rack and pinion mechanism providing for said movement of the lifting arms between the extended and retracted position, the principal rack and pinion mechanism comprising a pinion and, for each lifting arm, a rack.
  • the apparatus can further comprise a secondary rack and pinion mechanism providing for said movement of the guide arms between the extended and retracted position, the secondary rack and pinion mechanism comprising a pinion and, for each guide arm, a rack.
  • FIG 1 is apparatus according to an example embodiment of the invention
  • FIG. 2 is an end view of the apparatus of FIG. 1;
  • FIG. 3 is a bottom view of the apparatus of FIG. 1, with some parts removed for clarity;
  • FIG. 4 is an enlarged partial x-ray view of encircled area 4 of FIG. 3;
  • FIG. 5 is an enlarged partial x-ray view of a portion of encircled area 5 of FIG. 1;
  • FIG. 6 is a side view of the apparatus of FIG 1. positioned to grasp a plate and spacers positioned thereupon;
  • FIG. 7 is an end view of the apparatus of FIG. 1 in gripping receipt of a plate and spacers positioned thereupon;
  • FIG. 8 is a view similar to FIG. 6 showing the load suspended
  • FIG. 9 is a view similar to FIG. 7, showing the load fully elevated and the stabilizer bars received by the sleeves;
  • FIG. 10 is a side view of the structure of FIG. 9;
  • FIG. 11 is a side view of apparatus 20' according to another example embodiment of the invention.
  • FIG. 12 is an end view of the apparatus of FIG. 11;
  • FIG. 13A is an end view of the apparatus of FIG. Il in use and positioned about a palletized load to be lifted.
  • FIG. 13B is a side view of the structure of FIG. 13A;
  • FIG. 14A is a view similar to FIG. 13B, positioned at an elevation to grasp the load;
  • FIG. 14B is an end view of the structure of FIG. 14A;
  • FIG. 15A is a view similar to FIG. 14A, wherein the guide arms have been retracted against the load (coil);
  • FIG. 15B is an end view of the structure of FIG. 15A;
  • FIG. 16A is a view similar to FIG. 15A, wherein the lifting arms have been retracted against the pallet;
  • FIG. 16B is an end view of the structure of FIG. 16A;
  • FIG. 16C is an enlarged view of encircled area 16C of FIG. 16B;
  • FIG. 17A is a view similar to FIG 16B, in receipt of the load
  • FIG. 17B is a side view of the structure of FIG. 17A;
  • FIG. 17C is an enlarged view of encircled area 17C of FIG. 17A;
  • FIG. 18A is a view similar to FIG. 17A, with the load above the floor;
  • FIG. 18B is a side view of the structure of FIG. 18A;
  • FIG. 19A is a view similar to FIG. 18A, with the load fully elevated such that the stabilizing bars are received by the sleeves;
  • FIG. 19B is a side view of the structure of FIG. 19A.
  • each example embodiment is for use by an overhead crane having:
  • FIG 1 The first embodiment is shown in FIG 1 and the second embodiment is shown in FIG 11.
  • the stabilizing bars are elongate and terminate in tapered, conical ends
  • the sheave arrangement will be understood to be adapted to receive and be suspended by the wire rope arrangement of the crane used.
  • the frame is connected to the sheave arrangement and thereby adapted to be suspended thereby and defines a principal axis X-X and a secondary axis Y-Y.
  • Laser distance measurement sensors 40 are disposed beneath the main frame to detect the free space beneath.
  • the frame also carries an inclinometer 41. This information can, of course, be used to assist in positioning of the frame.
  • the sleeves project upwardly from the frame, each including a lower cylindrical portion 42 having an inner diameter adapted for a clearance fit with a stabilizing bar and upper, outwardly flared portion 44.
  • the lifting arms are spaced apart from one another along the principal axis, extend downwardly from the frame and terminate in a pair of reentrant lips 46.
  • Each lifting arm has a limit switch 48 positioned proximal to the reentrant lip, the limit switches of the lifting arms being orientated towards one another.
  • Each lifting arm also has a load detector 50 positioned proximal to the reentrant lip and presenting towards the frame.
  • Each lifting arm also has a pair of photo eyes 52 disposed above and below the reentrant lip, which again provides information useful when positioning the crane at the correct elevation.
  • the guide arms are spaced apart from one another along the secondary axis, each extending downwardly from the frame to a free end 54.
  • Each guide arm has a limit switch 57 positioned disposed adjacent the free end, the limit switches of the guide arms being orientated towards one another.
  • the principal rack and pinion mechanism comprises a pair of pinions (not shown) and, for and associated with each lifting arm, a pair of racks 56.
  • the pinion is driven by a brake motor, gear reducer, sprocket and chain and toque limiter clutch and includes an encoder and travel limit sensors, all not shown.
  • the secondary rack and pinion mechanism comprises (not shown) a pinion and, for and associated with each guide arm, a rack.
  • the pinion is driven by a brake motor, gear reducer, sprocket and chain and toque limiter clutch.
  • FIGS 1-5 in detail, in this embodiment:
  • each guide arm terminates in a lip 60, the lips of the guide arms being adapted to assume a reentrant position
  • the lifting arms are adapted to support the underside of a plate
  • the sheave arrangement comprises two pairs of sheave blocks 62, the pairs of sheave blocks being spaced apart from one another in the direction of the secondary axis, the blocks of the pair being spaced apart from one another in the direction of the primary axis.
  • the sheave blocks are directly reeved to the hoists to keep the lifter and lifted load level even if loaded unevenly.
  • FIGS. 6-10 are illustrative of the manner in which this embodiment is used.
  • this embodiment is used with a crane wherein the rope arrangement includes four lifts.
  • each of the lifts is engaged with a respective one of the sheave blocks and the stabilizing bars are connected to extend downwardly from the trolley.
  • the primary rack and pinion mechanism is activated to draw the lift arms together until both limit switches have engaged, wherein the frame will be operatively centered, with reference to the primary axis to the plate, as shown in FIG. 7.
  • the winch arrangement is activated, to draw the plate towards the trolley.
  • lips 60 assume the reentrant position to support the edges of the plate against sway, as shown in FIG. 8.
  • the inclinometer coacts with the load detectors to arrest movement of the cable if the conditions are such that it appears the plate is not fully engaged by the lips or is blocked against movement, for example, by an adjacent plate. Absent issues of this sort, the winch draws the frame upwardly, as indicated in FIG. 8, until the stabilizer bars are received by the sleeves, as illustrated in FIGS. 9 and 10, at which point, the load (plate 64 and dunnage/spacers positioned thereon) is horizontally transported by the crane.
  • FIGS 11-12 in this embodiment 20':
  • the sleeves are spaced apart from one another in a horizontal direction that is 45°to the secondary axis;
  • the sheave arrangement comprises a sheave block 66 disposed at the intersection of the principal and secondary axis.
  • Figures 13A-19B are illustrative of the manner in which this embodiment is used. [0047] More particularly, this embodiment is used with a crane wherein the rope arrangement includes a single lift.
  • the lift is engaged with the sheave block 66 and the stabilizing bars are again mounted to the trolley to extend downwardly therefrom.
  • the primary rack and pinion mechanism is activated to draw the lifting arms together until both limit switches have engaged, wherein the frame will be operatively centered, with reference to the primary axis to the plate, as shown in FIG. 16A-16B.
  • the winch arrangement is activated, to draw the pallet towards the trolley.
  • the inclinometer coacts with the load detectors to arrest movement of the cable if the conditions are such that it appears the pallet is not fully engaged by the lips or is blocked against movement, for example, by an adjacent plate. Absent issues of this sort, the winch draws the frame upwardly until the stabilizer bars are received by the sleeves as indicated by the sequence of FIGS 16A-19B.
  • the load can be transported by the crane and deposited by following the foregoing steps in reverse.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)

Abstract

Une paire de barres de stabilisation font saillie vers le bas à partir du chariot d'une grue. Le câble métallique de la grue passe, à l'utilisation, à travers une poulie. Un cadre est suspendu à la poulie. Une paire de manchons font saillie vers le haut depuis le cadre. Lors de la rétraction du câble, les manchons viennent en prise avec les barres. Une paire de bras de levage font saillie vers le bas depuis le cadre, ces bras étant espacés le long d'un axe principal horizontal et montés en vue de se déplacer le long dudit axe, entre une position étendue dans laquelle les bras sont éloignés ; et une position rétractée dans laquelle les bras sont proches. Une paire de bras de guidage font saillie vers le bas depuis le cadre, ces bras étant espacés le long d'un axe secondaire horizontal perpendiculaire à l'axe principal et montés en vue de se déplacer le long de celui-ci, entre une position étendue dans laquelle ces bras sont éloignés et une position rétractée dans laquelle ces bras sont proches.
PCT/CA2023/051021 2022-07-28 2023-07-28 Appareil de levage WO2024020698A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202263393080P 2022-07-28 2022-07-28
US63/393,080 2022-07-28

Publications (1)

Publication Number Publication Date
WO2024020698A1 true WO2024020698A1 (fr) 2024-02-01

Family

ID=89704784

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2023/051021 WO2024020698A1 (fr) 2022-07-28 2023-07-28 Appareil de levage

Country Status (1)

Country Link
WO (1) WO2024020698A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3051321A (en) * 1959-11-23 1962-08-28 Pacific Coast Eng Co Gantry type crane assembly
FR1406737A (fr) * 1964-07-21 1965-07-23 Pacific Coast Eng Co équipement de manutention rapide pour conteneurs
US3655232A (en) * 1968-06-20 1972-04-11 Ghislain Antoine Jean Marie Ma Gripper for handling heavy products and specifically horizontal-axis coils
KR0181387B1 (ko) * 1996-08-30 1999-04-15 권오율 롤 이송용 복합통 조립체
KR20030052148A (ko) * 2001-12-20 2003-06-26 주식회사 포스코 천정 크레인용 와이어 킹크 방지장치
KR101820794B1 (ko) * 2016-08-17 2018-01-22 신비앤텍 주식회사 오버헤드 호이스트 이송장치의 그립퍼 유닛
CN110980496A (zh) * 2019-12-19 2020-04-10 河钢乐亭钢铁有限公司 一种自动定位轧辊吊具及使用方法
CN215325556U (zh) * 2021-11-22 2021-12-28 佛山市金科机械设备有限公司 一种夹箱码垛机构

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3051321A (en) * 1959-11-23 1962-08-28 Pacific Coast Eng Co Gantry type crane assembly
FR1406737A (fr) * 1964-07-21 1965-07-23 Pacific Coast Eng Co équipement de manutention rapide pour conteneurs
US3655232A (en) * 1968-06-20 1972-04-11 Ghislain Antoine Jean Marie Ma Gripper for handling heavy products and specifically horizontal-axis coils
KR0181387B1 (ko) * 1996-08-30 1999-04-15 권오율 롤 이송용 복합통 조립체
KR20030052148A (ko) * 2001-12-20 2003-06-26 주식회사 포스코 천정 크레인용 와이어 킹크 방지장치
KR101820794B1 (ko) * 2016-08-17 2018-01-22 신비앤텍 주식회사 오버헤드 호이스트 이송장치의 그립퍼 유닛
CN110980496A (zh) * 2019-12-19 2020-04-10 河钢乐亭钢铁有限公司 一种自动定位轧辊吊具及使用方法
CN215325556U (zh) * 2021-11-22 2021-12-28 佛山市金科机械设备有限公司 一种夹箱码垛机构

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