US2932413A - Systems for handling articles inside a fluidtight chamber - Google Patents

Systems for handling articles inside a fluidtight chamber Download PDF

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Publication number
US2932413A
US2932413A US709587A US70958758A US2932413A US 2932413 A US2932413 A US 2932413A US 709587 A US709587 A US 709587A US 70958758 A US70958758 A US 70958758A US 2932413 A US2932413 A US 2932413A
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US
United States
Prior art keywords
shaft
vertical
carriage
shafts
chamber
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Expired - Lifetime
Application number
US709587A
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English (en)
Inventor
Chanut Laurent Urbain
Dardy Gabriel Roger
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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Commissariat a lEnergie Atomique CEA
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Application filed by Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
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Publication of US2932413A publication Critical patent/US2932413A/en
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Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F7/00—Shielded cells or rooms
    • G21F7/06—Structural combination with remotely-controlled apparatus, e.g. with manipulators
    • G21F7/067—Transferring devices within cells or boxes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • 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
    • B66C2700/017—Installations characterised by their destination or by the load-engaging element for as far as the trolley is essential

Definitions

  • Such a system is particularly useful in nuclear energy plants where itis necessary to handle relatively heavy vessels which contain irradiated materials and which are temporarily stored up in chambers which must be fiuidtight for obvious safety reasons.
  • said shaft lower ends carrying transmission means capable-when the shaft lower end is at one of said lower levels, of; cooperating with means carried by said bridge for controllingthe positionof said carriagethereon, said vertical shaftbeing then driven in rotation by-power means displaceable on the top of said ceiling so as to be able to becoupled with any of said vertical shafts, said transmission means being further capable, when said shaft lower end is at .one of said lower levels, of cooperating with means carried by said carriage for placing said hoisting member exactly in line with the vertical shaft at the lower end of which said transmissionmeans is mounted, said transmission means being also capable, when the shaft lower three lower levels and to drive it in rotation at each of said levels. 7
  • Fig. l is a transverse vertical section of the chamber provided with the system according to this invention.
  • Fig. 2 is a partial plan view in section on the line II'-II of Fig. l. I i
  • Fig. 3 is a'longitudinal vertical sectionof the chamber with the system according to the invention.
  • Fig. 4 shows, on an enlarged scale, a vertical section of the carriage of the travelling crane, in the absence of a container.
  • Fig. 5 is a section on the line VV of Fig. 4, with a container in position.
  • Fig. 6 is a plan view in section on the line VI-YI of Fig.4.
  • Fig. 7 is a sectional view on the line VII-VII of Fig. 6.
  • Fig. 8 shows, on a still larger scale, a vertical section on the line V1HVIlI of Fig. 5.
  • Fig. 9 is a sectional view on the line IXIX of Fig. 8.
  • Figs. 10 and ll show,'in plan view, the means for centering the hoisting mechanism with respect to the sockets of the chamber.
  • Fig. 12 is a vertical sectional view onthe line XII- XII of Fig. 8.
  • Fig. l3 is a vertical section on the line XIII-XIII of Fig. 8. v
  • Fig.' 14 is a vertical section on the line XIVXIV of Fig. 8.
  • the storing chamber 1, illustrated by Figs. 1 and 3, includes vertical walls 2 and 3, a ceiling 4 and a floor 5.
  • Two runways 8 (Fig. 3) are provided along the two vertical walls 3 for supporting, through rollers 9, the ends of the bn'dgeor girder 10 of a travelling crane.
  • the two chains 11 are simultaneously driven by two power means 15 located in fixed position on the top of ceiling 4 so that the bridge, whatever be the direction of its displacement, is driven by the top portions of the chains, the lower portions of said chains being stretched by 'counterweights 16 guided in fixed frames 17 (Fig. 1)
  • Bridge 10 carries two rails or tracks 13 on which bear I insupports 25 rigid with bridge 10 and in line with each end isat another lower level, of couplingsaid hoisting topface of said ceiling being adaptedto bring the shaft which is in line with the carriage ,suc cess ively tosaid other, are driven, on each of said supports, through bevel gearings 26, horizontal shafts 27-48, and bevel gearings 29 interposed-between shafts 28-and a vertical shaft 30 the topend of which is provided witha fork joint 31.
  • the vertical plane in which shafts 24 are located is ofifset, with respectto the middle plane of carriage. 20, by a distance equal to that existing between two adjacent rows of sockets 6.
  • Carriage 20 (Figs. 1 and 3), which is in the form of a rectangular frame, carries, suspended therein through two pairs of rectilinear ball rolling tracks 33 and 34, a casing 32. These tracks, which are located one above the other, permit horizontal displacements of limited amplitude of casing 32 with respect to the carriage in two horizontal directions at right angles to each other. 7
  • the top portion 35 of casing 32 contains the hoisting mechanism.
  • a sleeve 36 mounted inside casing 32 (Figs. 4 and is hanging through a ball socket joint '37 from a transverse member 38 itself pivoted about the axis 39 of a bar 48 to each of the ends of which there is fixed a chain 41.
  • Sleeve 36 (Figs. 4 and 5) carries three hooking levers 53 pivoted about horizontal axes 54 fixed with respect to said sleeve 36, said axes being at 120 to one another.
  • the hooks 55 of said levers 53 are adapted to engage under an inner flange 56 of a container 7.
  • levers 53about their respective axes 54 is controlled by a device mounted under transverse member 38 and shown in plan view on Fig. 6.
  • Pinion 61 (Fig. 4) is mounted between two discs of a slightly greater diameter which compel said pinion 61 to slide along shaft 62 when disc 58 is moving vertically.
  • the shaft of worm 52 carries a bevel pinion 64 which meshes with a bevel pinion 65 fixed on a hollow shaft 66 rigid with a circular plate 67.
  • bevel pinion 63 carried by vertical shaft 62 which controls the hooking levers 53, meshes with a pinion 68 fixed on a horizontal shaft 69 carrying at its other end a second bevel pinion 70 in mesh with a pinion 71 rigid with a hollow shaft 72, coaxially mounted in the hollow shaft 66 and provided at its top end with a notched disc or plate 73.
  • Rotation of the two hollow shafts 66 and 72 is controlled by any of the vertical shafts 74.
  • vertical shafts 74 are mounted in the ceiling 4 of chamber 1, each on the vertical of the center of a corresponding socket 6.
  • Each. of said vertical shafts 74 is provided, at its top end, with a portion of square cross-section 75, adapted to be brought into engagement with a coupling member belonging to one of the two power means 76 and 77 displaceable on the top of the ceiling.
  • each of said vertical shafts 74 can be caused to slide with respect to said ceiling so as to occupy any of a plurality of positions corresponding to difierent levels, these vertical displacements being controlled by a mechanism (not shown) included in each of the power means 76 and 77.
  • said shafts 74 At its lower end, eacliof said shafts 74 is provided with coupling means constituted by a transverse bar 78 (Fig. 8) on which are mounted, about vertical axes 79, two rollers 80.
  • coupling means constituted by a transverse bar 78 (Fig. 8) on which are mounted, about vertical axes 79, two rollers 80.
  • rollers 80 are brought into engagement, either (first case hereinafter referred to) with the means for controlling the displacement of carriage 20 on bridge 10, or (second case hereinafter referred to) with the hoisting mechanism.
  • rollers 80 are engaged in the fork joint 31 of shaft 30 (-Fig. 3) and the rotation of shaft 74 is transmitted, through gearing 29, shafts 27, 28 and gearings 26, to shafts 24 either of which, in mesh through the pins 22 of its disc 23 with rack 21, controls the translatory displacements of carriage 20 along travelling bridge '10.
  • shaft 74 is controlled by a movable power unit 77
  • rollers 80 are engaged in notches 81 provided in an annular member 82 rigid with circular plate 67 (Fig. 8), and the rotation of shaft 74 is transmitted, through hollow shaft 66 and gearing 64-65, to worm 52, which controls the displacements of the hoisting chains.
  • Each of these rolling tracks includes a return device (Figs. 6 and 7) constituted by two antagonistic springs 83 bearing, on the one hand upon a projection 84 carried by a bar 85 which maintains the proper distance between two balls 33 or 34, and on the other hand against abutments 86, fixed with respect to the rolling track.
  • the action of these springs tends to keep casing 32 in a mean center position with respect to carriage 20.
  • a frame 87 (Fig. 8) in which is provided an aperture 88 the shape of which is shown in plan view (and surrounded by cross-hatchings) in Figs. 10 and 11.
  • rollers 80 When rollers 80 are inscribed in aperture 88, a rotation of 90 imparted to bar 78 by the movable power unit 77, brings rollers 80 into contact with the edge of aperture 88 and thus returns the axis 0 of annular member 82, which can move with respect to carriage 20 owing to the provision of rolling tracks 33 and 34, into coincidence with the axis of shaft 74, as shown by Fig; 11.
  • a further downward displacement B of bar 78 then permits of engaging the rollers 80 in annular member 82, and therefore of driving this member 82 in rotation,
  • a third downward displacement C of bar 78 brings rollers 80into a circular recess 89 provided at the lower end of annular member 82, whereby this annular member- 82 ceases to be driven in rotation whereas bar 78 comes into engagement, through projections 105, with the notches of circular plate 73, the rotation movement of shaft 74 being then transmitted to pinion '61, which controls the hooking levers 53, by means of hollow shaft 72; pinions 71-70, horizontal shaft 69, pinions 68, 63 and shaft 62.
  • Safety means are provided in order to control the correct succession of the respective operations which are to be performed.
  • a rod 90' (Fig. 8), centered in hollow shaft 72, bears, at its lower end, on a roller 91 mounted at the end of a'leverj92(Fig. 13) which controls, by means of two toothed sectors 93 and 94, a shaft 95 which carries, at
  • a pawl 96 intended to mesh with a notch 97 provided in the periphery of a disc 98 keyed on the'shaft of worm 52 (Fig. 12).
  • the other end of shaft 95 carries a flat member 99 provided with a notch 100 intended to engage on a sleeve 101 fixed on shaft 69 and having curved edges 102 concentric with shaft 95 (Fig. 14).
  • Rod 90 is controlled by the downward movement of bar 78. After a displacement of A+a, the vertical shaft 74 moves rod 90 downwardly so that, when rollers 80 are in engagement with annular member 82, pawl 96 is disengaged from disc 98 and permits the shaft of worm 52 to rotate, whereas, after a displacement b in addition to the downward displacement B, member 99 releases shaft 69 and permits the operation of hooking levers 53.
  • Bar 78 must not be allowed to move upwardly into the centering position as long as rollers 80, in engagement with annular member 82, are not disposed along the line which corresponds to the beginning or to the end of the hoisting movement. Accordingly, frame 87- carries two projections 103 intended to control the direction of bar 78 the upper wings of which are provided with corresponding notches 104 (Fig. 11).
  • Travelling bridge and carriage 20 being in any given position, it is desired to displace a container 7 engaged in a given socket 6.
  • the travelling bridge 10 is brought above a corresponding row of sockets by means of the two fixed power units located on the side toward which the bridge is to be moved.
  • Carriage is then moved transversely on bridge 10, by means of the movable power unit 76, to come above the socket that has been chosen.
  • the movable power unit 76 is coupled with a vertical shaft 74 of the row of shafts adjoining that located above the bridge, this shaft being then lowered so as to bring rollers 80 into engagement with the fork joint 31 of the shaft 30 which controls the movements of translation of the carriage.
  • the movable power unit 77 is then coupled with the vertical shaft 74 now located above carriage 20.
  • a system for handling articles located in said chamber and adapted to fit in said sockets which system comprises,in combination, runways extending above said floor along said two parallel walls respectively and at the same level, a bridge transverse to said runways mounted to travel thereon, a carriage mounted to run along said bridge, a plurality of shafts extending in fluidtight fashion through said ceiling, so that the lower ends of said shafts are in said chamber, means for coupling the lower ends of said shafts with said bridge whereby rotation of said shafts produces transversing of said bridge, power means mounted in fixed position on the top face of saidceiling for driving said shafts from the outside of said chamber, a plurality of vertical shafts extending in fluidtight fashion through said ceiling, each of said last mentioned shafts being in line with one of said vertical sockets respectively, each of
  • a system according to claim 1. in which the transmission means mounted at the lower ends of said vertical shafts include a bar fixed to said shafts and extending on either side thereof at right angles/thereto, and rollers mounted 'at the ends of said bar about vertical axes, said two rollers being diametrically opposed with respect to the corresponding vertical shaft.
  • hooking. means are constituted by hooked levers pivoted to said hoisting member aboutrespective' horizontal axes, further including rolling means for movably supporting said member with respect 'to-said carriage to permit limited horizontal displacements of said member with respect to said carriage, and a part rigid with said member forming a cam adapted to cooperate with said rollers and constituting the means for placing said member exactly in line with a vertical shaft.
  • the means for coupling the hoisting means with a vertical shaft include a casing mounted in said carriage, a transverse member vertically movable in said casing'and supporting said hoisting member, chains fixed to said transverse member, sprocket wheels,”journalled in said cas'ing'and in cooperating engagement withsaid wheels, an annular member rotatable about a vertical axis with respect to said casing, said -annular.member being provided with notches adapted to cooperate with said rollers, aridspeed reducing gear means interposed between said annular member and said sprocket wheels.
  • said hooking means are constituted by hooked levers pivoted to said hoisting member about respective horizontal'axes, said means for having said hooking means operated from said transmission means including rollers carried by the upper ends of said hooked levers, a disc rotatable about a vertical axis with respect to said carriage and slidable vertically with respect thereto together with said hoisting member, said disc being provided with cam surfaces in cooperating engagement with said last mentioned rollers, and gear means slidable vertically with respect to said carriage for transmitting the rotating movement of said transmission means to said disc.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Centrifugal Separators (AREA)
  • Manipulator (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
US709587A 1957-01-21 1958-01-17 Systems for handling articles inside a fluidtight chamber Expired - Lifetime US2932413A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1065147X 1957-01-21

Publications (1)

Publication Number Publication Date
US2932413A true US2932413A (en) 1960-04-12

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ID=9602141

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US709587A Expired - Lifetime US2932413A (en) 1957-01-21 1958-01-17 Systems for handling articles inside a fluidtight chamber

Country Status (6)

Country Link
US (1) US2932413A (no)
BE (1) BE564137A (no)
CH (1) CH347904A (no)
DE (1) DE1065147B (no)
FR (1) FR1164899A (no)
GB (1) GB833831A (no)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4126232A (en) * 1977-06-02 1978-11-21 Westinghouse Electric Corp. Electrical switchboard apparatus with integral traveling lifting mechanism
US4733783A (en) * 1986-03-25 1988-03-29 Benedict Engineering Company, Inc. Multidirectional material handling support and shuttle systems

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1175369B (de) * 1960-12-21 1964-08-06 Krupp Ardelt Gmbh Einrichtung zum Ein- und Ausbauen eines Geraetes in einen bzw. aus einem Kernreaktor
NL289158A (no) * 1962-02-20
IT712415A (no) * 1964-07-28
FR2487106A1 (fr) * 1980-07-15 1982-01-22 Commissariat Energie Atomique Installation de remplacement d'un organe d'un circuit de fluide contamine et procede de remplacement de cet organe
CN108545619B (zh) * 2018-07-05 2024-04-12 江西飞达电气设备有限公司 一种杠杆式起重限制器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4126232A (en) * 1977-06-02 1978-11-21 Westinghouse Electric Corp. Electrical switchboard apparatus with integral traveling lifting mechanism
US4733783A (en) * 1986-03-25 1988-03-29 Benedict Engineering Company, Inc. Multidirectional material handling support and shuttle systems

Also Published As

Publication number Publication date
DE1065147B (de) 1959-09-10
GB833831A (en) 1960-05-04
BE564137A (no)
FR1164899A (fr) 1958-10-15
CH347904A (fr) 1960-07-31

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