EP0032969B1 - Grue, spécialement adaptée pour l'utilisation dans des fonderies - Google Patents

Grue, spécialement adaptée pour l'utilisation dans des fonderies Download PDF

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Publication number
EP0032969B1
EP0032969B1 EP80100649A EP80100649A EP0032969B1 EP 0032969 B1 EP0032969 B1 EP 0032969B1 EP 80100649 A EP80100649 A EP 80100649A EP 80100649 A EP80100649 A EP 80100649A EP 0032969 B1 EP0032969 B1 EP 0032969B1
Authority
EP
European Patent Office
Prior art keywords
crane
couplings
gripping device
bridge
rack
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
Application number
EP80100649A
Other languages
German (de)
English (en)
Other versions
EP0032969A1 (fr
Inventor
Herbert Grolla
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.)
Heinrich Wagner Maschinenfabrik & Co GmbH
Original Assignee
Heinrich Wagner Maschinenfabrik & Co GmbH
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 Heinrich Wagner Maschinenfabrik & Co GmbH filed Critical Heinrich Wagner Maschinenfabrik & Co GmbH
Priority to AT80100649T priority Critical patent/ATE5708T1/de
Publication of EP0032969A1 publication Critical patent/EP0032969A1/fr
Application granted granted Critical
Publication of EP0032969B1 publication Critical patent/EP0032969B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D33/00—Equipment for handling moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
    • B66C17/06—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes

Definitions

  • the invention relates to a crane, in particular for use in foundries, for moving, turning and transporting objects, in particular foundry molds that are under vacuum and manufactured using the V-method, with a crane bridge carried by two head supports, the wheels of which roll on crane rails and with at least one trolley movable on the crane bridge with a lifting device for the objects to be transported.
  • the casting cavity is delimited by a plastic film, which is pressed against the molding compound formed from loose, binder-free molding sand by a negative pressure generated inside the casting mold.
  • This process assumes that the vacuum in the molding compound is maintained until the casting solidifies.
  • the above-mentioned cranes are used in foundries to transport foundry molds or mold halves, e.g. from the molding shop to the casting station, from the casting station to the unpacking station and to transport empty molding boxes from the unpacking station back to the molding shop.
  • the mold boxes or the mold box halves must be rotated, turned, raised and lowered as required, and in addition for foundry molds using the V process, these must be connected to a vacuum source during transport.
  • the invention has for its object to provide a crane of the type mentioned in such a way that the transporting, moving, turning of objects, in particular of molds produced according to the V-process, can be carried out without manual auxiliary activity, the sequence of the processes described being able to be carried out fully automatically can.
  • At least one gear is attached to each head carrier, which meshes with a rack arranged parallel to the running rails, that the trolley is at least provided with a gear that meshes with a rack arranged on the crane bridge, that the Crane has a device for the reproducible starting of positions determined by the gears that a laterally guided gripper connected to the lifting device is attached to the trolley, which is rotatable about a vertical axis, that the gripper has two opposing and horizontally arranged couplings has that can be moved against each other and that the couplings are pivotable about a common horizontal axis.
  • the gear wheels attached to the head carriers and to the trolley which mesh with corresponding toothed racks, it is possible to move the crane reproducibly to predetermined locations on the foundry floor.
  • Due to the rigid coupling of the gripper to the trolley which can be e.g. the foundry mold boxes or the weighting weights or ladles, it is possible to accelerate, move and brake the crane bridge and the trolley at relatively high speeds without causing undesired swinging of the object to be transported.
  • the gripper itself which holds the object rigidly between two couplings, can be pivoted about a vertical axis, so that the objects can be rotated.
  • the couplings can be rotated about a horizontal axis, so that the objects, which is particularly necessary in foundry mold boxes, can be turned.
  • the gripper can be raised and lowered via the lifting device of the trolley, so that practically any point on or over the foundry hallway can be approached.
  • At least one coupling of the gripper is connected to a vacuum source via a vacuum line.
  • the foundry mold box is thus connected via the coupling to the vacuum line, so that when the foundry mold box is picked up, it is automatically supplied with negative pressure.
  • the crane according to the invention shown in FIG. 1 has two supports 1 on which supports 2 are supported, which receive the crane rails 3 and toothed racks 4 arranged parallel to these crane supports.
  • the wheels 6 of head carriers 7 roll, which are connected in a known manner via a crane bridge 5.
  • gears 8 are arranged which mesh with the racks 4.
  • the crane bridge 5 can either, as was previously the case, be driven via the rollers 6 of the head carrier 7, in which case the toothed wheels 8 which engage with the toothed racks 4 serve only for positioning the crane bridge 5 relative to the corridor floor 9.
  • the toothed wheels 8 which engage with the toothed racks 4 serve only for positioning the crane bridge 5 relative to the corridor floor 9.
  • a trolley 10 can be moved on running rails 11 on the crane bridge 5.
  • Racks 12 are arranged parallel to the running rails 11, with which toothed wheels 13 arranged on the trolley 10 mesh.
  • the trolley can be driven either via the wheels 14 or via the gears 13.
  • the gearwheels 13 serve to precisely position the trolley on the crane bridge 5.
  • a guide frame 15 is rigidly connected to the trolley 10, in which a guide frame 16 is mounted so that it can be raised and lowered.
  • This guide frame 16 is guided on all sides by guide rollers 17 so that it is connected to the trolley 10 in the direction of movement without vibration.
  • a pivot bearing 19 is used, which carries a gripper 20.
  • the gripper 20 is constructed in cross section in the form of a U-profile, the pivot bearing 19 engaging the back 21 of the U-profile.
  • the pivot bearing 19 engaging the back 21 of the U-profile.
  • the legs 22, 23, horizontally lying couplings 24, 25 are arranged, which lie opposite one another. These couplings are slidable against each other.
  • a piston 26 is attached to each clutch 24, 25, which is acted upon pneumatically or hydraulically and causes an axial displacement of the clutches.
  • a gear 27 is also attached to the clutch 24 and engages with a piston 28 in the form of a toothed rack.
  • the other coupling 25 is hollow and is connected at its free end to a hose 37 which is connected to a line 29 which is connected to a vacuum pump 30. The line 29 is guided through the pivot bearing 19, so that in any position of the gripper relative to the guide frame 16, the mold box 31 held by the couplings 24, 25 can be supplied with vacuum.
  • a rotary coupling 32 is arranged between the coupling 25 and the hose 37, which allows the coupling 25 to move relative to the hose 37. This is necessary so that the molding box 31 can be turned using the gear 27 and the screw 28.
  • the height of the legs 22, 23 of the gripper 20 are dimensioned so large that the molding box 31 and possibly other objects, such as e.g. a ladle, can be rotated freely.
  • the guide frame 16 is held by a rope 33 which is attached to a winch 34.
  • the cable winch 34 is in turn attached to the guide frame 15, which is rigidly connected to the trolley 10. With the help of the cable winch 34, the guide frame 16 and thus the gripper 20 is raised and lowered.
  • two tabs 35 are attached, each having a bore 36.
  • Two centering bolts 38 are attached to the gripper 20 at the same distance from the pivot bearing 19. When the gripper 20 is raised, the centering bolts 38 move into the bores 36 of the tabs 35, so that a pivoting about the pivot bearing during transport. 19 is excluded.
  • a gearwheel 40 is attached which meshes with a drive pinion 41 of a motor 42.
  • the gripper 20 In the lowered state of the guide frame 16, i.e. that is, when the centering bolts 38 are disengaged from the bores 36 of the tab 35, the gripper 20 can be pivoted about the vertical axis.
  • Fig. 2 shows a plan view of a crane designed according to the invention and on the floor 9 with molding and casting stations. These casting stations have a molding machine 52 with the molding stations 54 and 55. With the help of the gripper 20 of the crane, the finished lower mold halves are lifted from the mold station 54, turned through 180 ° so that the mold surface is at the top, and set down at point 59. Likewise, the finished upper box mold half is transported from the molding station 55 to point 59 and placed there on the lower mold box half already located. The mold thus completed is then transported to the individual casting stations 61 and set down.
  • these work stations can be preprogrammed so that the crane automatically transports the mold box halves or the finished casting molds to the individual stations and without the need for manual intervention, and after the casting has taken place to the further processing stations. Furthermore, the casting can also take place automatically with the aid of the crane according to the invention.

Claims (9)

1. Grue destinée, en particulier, à être utilisée dans les fonderies, pour déplacer, retourner et transporter des objets (31), en particulier des moules de fonderie sous vide, confectionnés selon le procédé V, grue munie d'un pont de grue (5), qui est porté par deux sommiers (7), et dont les galets (6) roulent sur des rails de grue (3), et d'au moins un chariot porte-treuil (10), pouvant coulisser sur le pont de grue (5), et muni d'un dispositif de levage (34) des objets (31 ) à transporter, et caractérisée par le fait que,. sur chaque sommier (7), est disposée au moins une roue dentée (8), qui engrène avec une crémaillère (4), disposée parallèlement aux rails (3), que le chariot porte-treuil (10) est muni d'au moins une roue dentée (13), qui engrène avec une crémaillère (12), disposée sur le pont de grue (5), que la grue présente un dispositif pour l'amener de façon reproductible dans des positions fixées par les roues dentées (8, 13) et les crémaillères (4, 12), qu'au chariot porte-treuil (10) est fixé un dispositif de prise (20), qui est guidé latéralement de tous les côtés, est relié au dispositif de levage (34), et peut tourner autour d'un axe vertical (19), que le dispositif de prise (20) présente deux accouplements (24, 25), qui sont opposés l'un à l'autre, sont disposés horizontalement, et peuvent se déplacer l'un relativement à l'autre, et que les dits accouplements peuvent tourner autour d'un axe commun, horizontal.
2. Grue selon la revendication 1, caractérisée par le fait que l'un au moins des accouplements (25) est raccordé, par l'intermédiaire d'un tuyau à dépression (37, 29), à une source de dépression (30).
3. Grue selon la revendication 2, caractérisée par le fait que la source de dépression est une pompe à vide (30), reliée au dispositif de prise (20).
4. Grue selon l'une quelconque des revendications 1 à 3, caractérisée par le fait que le dispositif de prise (20) est fixé, de manière à pouvoir tourner, à un châssis de guidage (16), guidé latéralement dans un cadre de guidage (15), et que, sur le dispositif de prise (20), sont prévues des broches de centrage (38) et, sur le cadre de guidage (15), des perforations (36) correspondantes destinées aux broches de. centrage (38).
5. Grue selon l'une quelconque des revendications 1 à 4, caractérisée par le fait que le dispositif de prise (20) est relié au châssis de guidage (16) par l'intermédiaire d'un palier de rotation (19), disposé verticalement.
6. Grue selon la revendication 5, caractérisée par le fait que le tuyau à dépression (29) passe à travers le palier de rotation (19).
7. Grue selon l'une quelconque des revendications 1 à 6, caractérisée par le fait que t'un au moins des deux accouplements (24, 25) est muni d'un entraînement de rotation (27, 28).
8. Grue selon l'une quelconque des revendications 1 à 7, caractérisée par le fait que l'entraînement de rotation (27, 28) est formé d'une crémaillère (28), réalisée sous la forme d'une tige de piston, et d'un pignon (27), solidaire en rotation de l'accouplement (24).
9. Grue selon l'une quelconque des revendications 1 à 7, caractérisée par le fait que les deux accouplements (24, 25) peuvent coulisser l'un par rapport à l'autre grâce à des vérins à double effet (42, 43).
EP80100649A 1980-01-04 1980-02-08 Grue, spécialement adaptée pour l'utilisation dans des fonderies Expired EP0032969B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80100649T ATE5708T1 (de) 1980-01-04 1980-02-08 Kran, insbesondere fuer den einsatz in giessereien.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3000176 1980-01-04
DE19803000176 DE3000176A1 (de) 1980-01-04 1980-01-04 Kran, insbesondere fuer den einsatz in giessereien

Publications (2)

Publication Number Publication Date
EP0032969A1 EP0032969A1 (fr) 1981-08-05
EP0032969B1 true EP0032969B1 (fr) 1983-12-28

Family

ID=6091536

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80100649A Expired EP0032969B1 (fr) 1980-01-04 1980-02-08 Grue, spécialement adaptée pour l'utilisation dans des fonderies

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EP (1) EP0032969B1 (fr)
AT (1) ATE5708T1 (fr)
DE (1) DE3000176A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2075800B1 (es) * 1993-10-14 1998-07-16 Torres Martinez M Instalacion para el transporte y volteo de grandes piezas.
DE29618409U1 (de) * 1996-10-22 1997-01-09 Haas Holzzerkleinerungs Und Fo Befüllanlage mit einer mobilen Befülleinrichtung
DE19704967C2 (de) * 1997-01-28 1999-08-05 Mannesmann Ag Portalkran, insbesondere zum Errichten von Bauwerken
CN109455482A (zh) * 2018-09-14 2019-03-12 广汽丰田汽车有限公司 一种自动搬运吊具
CN109399466B (zh) * 2018-12-29 2021-07-13 河南省大方重型机器有限公司 一种压力铸造系统及其压力铸造搬运起重机
CN110790191A (zh) * 2019-11-11 2020-02-14 安徽省华腾农业科技有限公司 一种冰的装卸装置
CN113003429B (zh) * 2021-02-23 2022-12-02 机械工业第九设计研究院股份有限公司 一种汽车生产线用可升降吊具

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE154684C (fr) * 1903-11-09
DE135047C (fr) *
AT215634B (de) * 1960-04-28 1961-06-12 Wiener Brueckenbau Tiefofenkran
FR1477359A (fr) * 1966-04-26 1967-04-14 Bofors Ab Dispositif de levage et de retournement pour les châssis de moules de fonderie
US4151922A (en) * 1977-03-14 1979-05-01 Wean United, Inc. Slab cooling device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR588420A (fr) * 1924-01-08 1925-05-07 Perfectionnement à la manoeuvre de translation des appareils de levage automatique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE135047C (fr) *
DE154684C (fr) * 1903-11-09
AT215634B (de) * 1960-04-28 1961-06-12 Wiener Brueckenbau Tiefofenkran
FR1477359A (fr) * 1966-04-26 1967-04-14 Bofors Ab Dispositif de levage et de retournement pour les châssis de moules de fonderie
US4151922A (en) * 1977-03-14 1979-05-01 Wean United, Inc. Slab cooling device

Also Published As

Publication number Publication date
EP0032969A1 (fr) 1981-08-05
DE3000176A1 (de) 1981-07-09
ATE5708T1 (de) 1984-01-15

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