WO2013050354A1 - Moyen de support de charge, plus particulièrement crochet de levage - Google Patents

Moyen de support de charge, plus particulièrement crochet de levage Download PDF

Info

Publication number
WO2013050354A1
WO2013050354A1 PCT/EP2012/069428 EP2012069428W WO2013050354A1 WO 2013050354 A1 WO2013050354 A1 WO 2013050354A1 EP 2012069428 W EP2012069428 W EP 2012069428W WO 2013050354 A1 WO2013050354 A1 WO 2013050354A1
Authority
WO
WIPO (PCT)
Prior art keywords
load
housing
hook
shaft
holding element
Prior art date
Application number
PCT/EP2012/069428
Other languages
German (de)
English (en)
Inventor
Oliver Moll
Original Assignee
Demag Cranes & Components 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 Demag Cranes & Components Gmbh filed Critical Demag Cranes & Components Gmbh
Priority to BR112013032484-8A priority Critical patent/BR112013032484B1/pt
Priority to CN201280034007.4A priority patent/CN103827013B/zh
Publication of WO2013050354A1 publication Critical patent/WO2013050354A1/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
    • B66C1/34—Crane hooks

Definitions

  • the invention relates to a load-receiving means, in particular load hook, with a hook, comprising a shank, with a housing in which a recess is arranged, into which the shank protrudes, and with a partially into a radially in the shank arranged groove engaging retaining element whose outstanding part is supported on the housing.
  • load hooks are used in various areas in connection with different hoists, such as hoists or chain hoists.
  • load hooks it is customary for flexible load suspension to use a load hook, which is rotatably mounted relative to the hoist.
  • a load hook is known, the hook is suspended via two semi-annular holding parts in a housing of the load hook.
  • a shaft of the hook of the load hook on a radially encircling and annular groove, in which the two holding parts are inserted. The protruding out of the groove areas of the
  • semi-annular holding parts are supported via an annular support disc with a correspondingly shaped recess on an axial ball bearing, which is inserted into a recess of the housing of the load hook.
  • the shank of the hook is pushed so far in through the support disk up through that the groove is freely accessible.
  • the holding parts are each inserted from the side into the groove and the shaft pulled down as far out until the holding parts come into contact with the recess of the support disk.
  • the recess prevents the holding parts from being able to move laterally out of the groove of the shank.
  • a load hook is known from European published patent application EP 0 134 862 A1, the shaft of which widens in an stepped manner at an upper end to form an annular shoulder surface. About the sales area, the shaft is supported via a sleeve-shaped insert on an axial ball bearing in a housing of the load hook. As the lower opening of the housing a smaller diameter than the shoulder surface, is supported in case of failure of the insert of the hook with its shaft continues in the housing.
  • German Patent DE 32 20 253 C2 shows a rotatable load hook whose shaft has a groove for a securing ring at its upper end.
  • the circlip serves to hold a cap sleeve in position.
  • the invention is based on the object to provide a further safe load-carrying means, in particular a load hook.
  • a load handling device according to claim 1.
  • Advantageous embodiments of the invention are specified in claims 2 to 9. According to the invention, in a load-receiving means, in particular load hook, with a hook, comprising a shank, with a housing in which a
  • Diameter than the end portion and the passage opening for forming the second shoulder has a smaller diameter than the receiving space and in case of failure of the holding element, the end portion is supported on the housing.
  • the forces are safely passed from the contact surface in the support surface.
  • the contact surface of the first paragraph and the support surface of the second paragraph are each plan and are opposite each other.
  • the surface contact ensures a safe introduction of the load in the housing.
  • the retaining element is designed as a securing ring.
  • a shaft locking ring according to DIN 471 can be used. This allows a particularly cost-effective design, with a possible failure of the locking ring yet the safe
  • the groove in the shaft for the retaining ring is easy to produce. Compared to a snap ring with a round cross-section and no attack surfaces for a circlip pliers, the retaining ring is easier to assemble and disassemble.
  • the retaining element designed as a retaining ring has a rectangular cross-section.
  • the groove and the housing or the ball bearing or the support disk can thus be structurally simple in the region of the contact with the retaining ring.
  • the groove is arranged in the end region of the shaft.
  • the retaining element is supported by a bearing on the
  • the bearing can be designed differently, in particular as axial needle or axial ball bearing.
  • the bearing comprises an upper and a lower bearing shell, wherein the retaining element is supported on the upper bearing shell. It is particularly advantageous that the holding element is supported by a support disk on the bearing. As a result, the forces of the holding element are securely introduced into the camp. It is advantageous if the holding element rests with a flat underside on a flat top of the support disk.
  • the housing is composed of two halves, between which the recess is formed.
  • the fall protection according to the invention can be realized because the hook with the stepped shaft with the tapered
  • Figure 1 is a side view of a load receiving means according to the invention in partial sectional view.
  • the load receiving means 1 shown in Figure 1 is designed as a load hook and has a hook 10 and a housing 20.
  • the housing 20 is suspended at the top of a chain 50 of a chain hoist, not shown.
  • the hook 10 consists in the usual way of a U-shaped and, a hook jaw 18 limiting hook part 1 1, to which a cylindrical shaft 12 connects, extending in extension of the chain 50.
  • the shaft 12 protrudes from below into a recess 21 of the housing 20th in and is fixed there.
  • the housing 20 is in longitudinal or
  • both the shaft 12 and the passage opening 22 have a circular cross-section.
  • top and bottom refer to a quiet
  • a ball bearing 40 in the form of an axial ball bearing with rolling elements, an upper bearing shell 41 and a lower bearing shell 42 is arranged, which is supported with the latter on the housing 20.
  • an annular support plate 30 is arranged on a flat top 41 a of the upper bearing shell 41.
  • This has approximately cylindrical shape with a likewise cylindrical central recess.
  • the shaft 12 is supported by means of a holding element 31, in particular a securing ring.
  • the holding element 31 is arranged in an annular groove 13 of the shaft 12.
  • the groove 13 is
  • Holding member 31 used which has a rectangular cross-section and in the region of the two ends engagement surfaces for a circlip pliers. He lies with a flat bottom 31 a on a flat top 30 a of the support disk 30 on.
  • the shaft 12 rests indirectly on the upper bearing shell 41.
  • the ball bearing 40 is a rotation of the hook 10 about the longitudinal axis X of the shaft 12 and thus given relative to the chain 50 hanging on the housing 20.
  • the dimension of the support disk is selected so that the forces of the holding member 31 of conventional hardened material safely, ie damage in the range of a permissible surface pressure without component, can be introduced into the bearing 40 and then into the housing 20.
  • the integrally formed shaft 12 can be roughly in an upper end portion 15th and divide a lower terminal area 16 separated by a heel 14.
  • the upper end portion 15 is not formed as a nut screwed on but part of the shaft 12.
  • the diameter is larger than that of the passage opening 22.
  • the lower connection portion 16 connects with a diameter which is slightly smaller than that of Through opening 22 is and is received in this.
  • Terminal portion 16 is slightly longer than the depth of the through hole 22. Below the terminal portion 16, a collar 17 is formed on the hook mouth 1 1, whose dimensions are in turn larger than that of the through hole 22.
  • the hook 10 can neither up nor down through the
  • Through opening 22 is arranged.
  • the shoulder 14 forms a plane and annular first bearing surface 14a, which is opposite to a likewise planar second bearing surface 21 a of the housing 20.
  • a gap which ensures that the shaft 12 does not rest directly on the housing 20. If the holding element 31 should break or deform strongly and thus fail as a component, the contact surface 14 a comes to rest on the support surface 21 a, so that the hook shank 12 is supported directly on the housing 20.
  • a crash of the hook 10 is prevented and on the other hand by the - compared to the ball bearing 40 - significantly increased friction between the
  • the recess 21 has a mushroom-shaped overall.
  • the passage opening 22 can be regarded as a stem and the recess 21 as a hat.
  • the support surface 21 a is formed in the region of the cross-sectional widening.
  • the assembly of the load handling device 1 shown can be done easily and quickly.
  • the bearing 40 and then the support plate 30 are simply plugged from the top of the shaft 12 in the direction of the hook part 1 1 and subsequently secured by means of the securing ring 31.
  • the shaft 12 with the bearing 40, the support plate 30 and the holding member 31 are inserted into the part of the recess 21 of the one of the two halves of the housing 20.
  • two links of the chain 50 will be further unspecified
  • Support means may be attached to the housing instead of a hook member for receiving loads.
  • other elements may be attached to the housing instead of a hook member for receiving loads.
  • ring loops, grippers or clamps may be mentioned here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

Moyen de support de charge, plus particulièrement crochet de levage (1), comprenant un crochet (10) pourvu d'une tige (12), un boîtier (20) comportant un évidement (21) dans lequel la tige (12) dépasse, et un élément de maintien (31) qui s'engage partiellement dans une rainure (13) disposée radialement dans la tige (12) et dont la partie dépassante s'appuie contre le boîtier (20).
PCT/EP2012/069428 2011-10-04 2012-10-02 Moyen de support de charge, plus particulièrement crochet de levage WO2013050354A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR112013032484-8A BR112013032484B1 (pt) 2011-10-04 2012-10-02 dispositivo de suporte de carga
CN201280034007.4A CN103827013B (zh) 2011-10-04 2012-10-02 吊货装置，尤其是吊钩

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011054148.9A DE102011054148B4 (de) 2011-10-04 2011-10-04 Lastaufnahmemittel, insbesondere Lasthaken
DE102011054148.9 2011-10-04

Publications (1)

Publication Number Publication Date
WO2013050354A1 true WO2013050354A1 (fr) 2013-04-11

Family

ID=46963745

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/069428 WO2013050354A1 (fr) 2011-10-04 2012-10-02 Moyen de support de charge, plus particulièrement crochet de levage

Country Status (4)

Country Link
CN (2) CN202558457U (fr)
BR (1) BR112013032484B1 (fr)
DE (1) DE102011054148B4 (fr)
WO (1) WO2013050354A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011054148B4 (de) * 2011-10-04 2015-10-22 Terex Mhps Gmbh Lastaufnahmemittel, insbesondere Lasthaken
CN104773651A (zh) * 2015-01-29 2015-07-15 象王重工股份有限公司 可防止旋转卡阻的大吨位吊钩

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0134862A1 (fr) 1983-07-26 1985-03-27 Elephant Chain Block Company Limited Crochet de charge pour un dispositif de levage
DE3220253C2 (de) 1981-05-30 1986-04-10 F.T. Industries Co., Ltd., Fukuyama, Hiroshima Drehbarer Lasthaken für Hebezeuge
US4708382A (en) * 1987-01-20 1987-11-24 Cooper Industries Separable lifting hook
DE10310086A1 (de) * 2003-03-06 2004-09-23 Demag Cranes & Components Gmbh Aufhängung für Lasthaken
DE102005023990A1 (de) * 2004-07-07 2006-02-16 Demag Cranes & Components Gmbh Aufhängung eines Lasthakens
DE102009017718A1 (de) 2009-04-11 2010-10-21 Demag Cranes & Components Gmbh Lastaufnahmemittel, insbesondere eine Unterflasche eines Hebezeuges

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10310087A1 (de) * 2003-03-06 2004-09-23 Demag Cranes & Components Gmbh Aufhängung für Lasthaken
DE102011054148B4 (de) * 2011-10-04 2015-10-22 Terex Mhps Gmbh Lastaufnahmemittel, insbesondere Lasthaken

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3220253C2 (de) 1981-05-30 1986-04-10 F.T. Industries Co., Ltd., Fukuyama, Hiroshima Drehbarer Lasthaken für Hebezeuge
EP0134862A1 (fr) 1983-07-26 1985-03-27 Elephant Chain Block Company Limited Crochet de charge pour un dispositif de levage
US4708382A (en) * 1987-01-20 1987-11-24 Cooper Industries Separable lifting hook
DE10310086A1 (de) * 2003-03-06 2004-09-23 Demag Cranes & Components Gmbh Aufhängung für Lasthaken
DE102005023990A1 (de) * 2004-07-07 2006-02-16 Demag Cranes & Components Gmbh Aufhängung eines Lasthakens
DE102009017718A1 (de) 2009-04-11 2010-10-21 Demag Cranes & Components Gmbh Lastaufnahmemittel, insbesondere eine Unterflasche eines Hebezeuges

Also Published As

Publication number Publication date
DE102011054148A1 (de) 2013-04-04
CN202558457U (zh) 2012-11-28
CN103827013A (zh) 2014-05-28
BR112013032484B1 (pt) 2021-02-02
BR112013032484A2 (pt) 2017-02-21
DE102011054148B4 (de) 2015-10-22
CN103827013B (zh) 2016-11-02

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