EP1454870B1 - Moyen de suspension pour un crochet de levage - Google Patents

Moyen de suspension pour un crochet de levage Download PDF

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Publication number
EP1454870B1
EP1454870B1 EP04004899A EP04004899A EP1454870B1 EP 1454870 B1 EP1454870 B1 EP 1454870B1 EP 04004899 A EP04004899 A EP 04004899A EP 04004899 A EP04004899 A EP 04004899A EP 1454870 B1 EP1454870 B1 EP 1454870B1
Authority
EP
European Patent Office
Prior art keywords
suspension means
means according
receiving ring
shank
ring
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
EP04004899A
Other languages
German (de)
English (en)
Other versions
EP1454870A3 (fr
EP1454870A2 (fr
Inventor
Manfred Stöber
Klaus-Jürgen Winter
Karl Zacharias
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.)
Demag Cranes and Components GmbH
Original Assignee
Demag Cranes and 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 and Components GmbH filed Critical Demag Cranes and Components GmbH
Publication of EP1454870A2 publication Critical patent/EP1454870A2/fr
Publication of EP1454870A3 publication Critical patent/EP1454870A3/fr
Application granted granted Critical
Publication of EP1454870B1 publication Critical patent/EP1454870B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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 suspension for load hooks, in particular for lower bottles of cables, with a shaft rotatably mounted in a recess of a support body about a vertical axis, which is supported on at least one thrust bearing and a ring surrounding the shank receiving ring on the support body, wherein the receiving ring is determined via a fuse element in the support body.
  • Such a suspension for load hook is from the German patent DE 882 606 C known.
  • the securing element is designed in the form of a plurality of tapered rollers, which are introduced into opposite and arranged in the support body and in the receiving ring circumferential grooves.
  • Suspensions for load hooks are known from practice in various embodiments. From DIN 15 411 a bottom block with two pulleys is known, in which the load hook is mounted rotatably about a vertical and a horizontal axis on a load hook suspension, which is arranged below the connecting rollers carrying the pulleys. Due to the use on the one hand of the connecting body and on the other hand, the separate load hook suspension, this known construction has a relatively large height and also many components.
  • a generic load hook suspension is from the German Patent DE 196 02 931 C2 known.
  • the shank of the load hook is mounted in a recess of the connecting roller carrying the pulleys a Unterflasche.
  • the inserted into the recess and the shaft of the load hook overlapping thrust bearing is held by tangentially extending screws in the recess, which are screwed by the pulleys ago in Tangentialnuten the bearing cage.
  • Another suspension hook is from the German Offenlegungsschrift DE 198 17 011 A1 known.
  • this known load hook suspension for a lower block of the load hook is rotatably mounted both about a vertical and about a horizontal axis.
  • the arranged in the recess of the rope pulleys bearing assembly bearing assembly for the load hook shaft in addition to the axial bearing for rotation about the vertical axis comprises a cylindrical pin, which is mounted bridging the recess rotatably mounted in the connecting body.
  • the cylindrical pin For receiving the load hook shank, the cylindrical pin has a through hole.
  • a nut is screwed and fixed so the load hook on the cylindrical pin.
  • the entire bearing assembly has a relatively large height and also consists of many non-preassembled components.
  • the present invention seeks to provide a short-built and simply constructed suspension for a load hook.
  • the shank of the load hook is mounted in a through hole of a support element and mounted on a support member consisting of the at least one thrust bearing and the receiving ring bearing assembly in the support body, that the securing element is a snap ring and that the securing element for securing the bearing assembly on the one hand engages behind an undercut of the support body and on the other hand rests against a contact surface of the receiving ring.
  • the storage according to the invention makes it possible to pre-assemble the entire bearing assembly prior to insertion into the recess of the support body. In addition, it requires the setting of the bearing assembly in the recess only a snap ring. The assembly is thus easy and quick to carry out, especially since it requires no special positioning of the bearing assembly to the support body and / or the recess.
  • Undercut for receiving the securing element designed as a circumferential annular groove in the supporting body.
  • the setting of the load hook shank on the support element is carried out according to a preferred embodiment of the invention via a securing element, in particular a snap ring which engages in the assembled state on the one hand an undercut at the free end of the shaft and on the other hand is arranged in a recess of the support element.
  • a securing element in particular a snap ring which engages in the assembled state on the one hand an undercut at the free end of the shaft and on the other hand is arranged in a recess of the support element.
  • the undercut for receiving the securing element is designed as a circumferential annular groove in the load hook shaft.
  • the undercut for receiving the securing element is designed as a tapering of the shank cross section pointing away from the free end of the shank.
  • the thrust bearing facing surface of the support member and / or the receiving ring is formed as a plane contact surface for the axial bearing formed in particular as an axial bearing.
  • the support element itself forms the upper bearing shell of the thrust bearing, whereby the number of components can be further reduced.
  • the load hook in addition to the rotatability about the vertical axis about a horizontal axis is pivotally mounted in the support body.
  • This additional degree of freedom the handling and possible use of an inventively mounted load hook can be significantly increased.
  • This pivotability about a horizontal axis is advantageously achieved by two arranged between the lower bearing shell of the thrust bearing and the receiving ring cylindrical rollers which form the horizontal pivot axis, wherein the cylindrical rollers are arranged opposite each other on both sides of the shank of the load hook in the bearing assembly.
  • the number of necessary for the formation of the bearing assembly according to the invention components can be further reduced in that the cylindrical rollers between the receiving ring and a lower bearing shell of the thrust bearing forming, the shaft are annularly arranged surrounding the pivot bearing ring.
  • the pivoting about the horizontal axis can be facilitated and also limited in the pivoting angle, that on the one hand in a plane perpendicular to the pivot axis between the facing surfaces of the receiving ring and the pivot bearing ring is formed a gap and on the other hand, the side walls of the through hole of the receiving ring at least in the pivoting plane of the load hook are formed conically widened in the direction of the load hook.
  • the limitation of the pivot angle is made possible in that the mutually facing surfaces of the receiving ring and the pivot bearing ring and / or the conical side walls of the through hole of the receiving ring form the pivot angle of the load hook limiting abutment surfaces.
  • the gap between the mutually facing surfaces of the receiving ring and the pivot bearing ring is advantageously designed widening in the radially outward direction.
  • the handling of the device provided with the load hook facilitating at least one recessed grip formed in the support body.
  • the example formed as a connecting body of a lower block and provided with the at least one recessed support body is easy and inexpensive to manufacture as a casting, while a with Gripping recesses provided forged load hook, as it is known from the prior art, represents a complex and expensive to be manufactured special component.
  • FIG. 1 to FIG. 5 show two embodiments of the embodiment of the suspension of a load hook 1, which is mounted in a recess 2 of a supporting body 3.
  • the support body 3 is formed as two pulleys 4 a lower block 5 supporting connecting body.
  • the entire mounted in the recess 2 of the support body 3 bearing assembly 6 is held by a securing element 12 in the recess 2 of the support body 3.
  • This fuse element 12 can, as in the pictures FIG. 1 to FIG. 5 represented, for example, be designed as a snap ring, which engages behind an undercut 13, in particular an annular groove in the support body 3.
  • the load hook 1 is rotatably supported only about the vertical axis 11 in the support body 3.
  • both the support element 7 and the receiving ring 10 have plane contact surfaces 7a, 10a against which the bearing shells of the axial bearing abut.
  • the securing element 14 receiving undercut 15 is formed as a circumferential annular groove 15a, while the undercut 15 is formed on the left half of the shaft 9 as a taper 15b of the shaft cross-section.
  • the formation of the taper 15b has the advantage that in comparison to the annular groove 15a lower notch stresses occur.
  • FIG. 2 The sectional side view according to FIG. 2 It can be seen that 3 handle recesses 17 are formed to facilitate handling in the support body.
  • the design of the recessed grips 17 on the support body 3 is particularly advantageous because a provided with recessed grips 17 supporting body 3 is easy and inexpensive to manufacture as a casting, while provided with recessed grips 17 forged load hook 1, as is known in the prior art, represents a complex and expensive to be manufactured special component.
  • FIG. 3 to FIG. 5 illustrated second embodiment for the design of the suspension of a load hook 1 differs from the embodiment described above essentially in that the load hook. 1 in addition to the rotatability about the vertical axis of rotation 11 about a horizontal axis 18 is pivotally mounted in the supporting body 3.
  • two cylindrical rollers 19 are arranged between the lower bearing shell of the axial bearing 8 and the receiving ring 10, the horizontal pivot axis 18 form, the cylindrical rollers 19 are arranged opposite each other on both sides of the shaft 9 of the load hook 1 in the bearing assembly 6.
  • the cylindrical rollers 19 between the receiving ring 10 and a lower bearing shell of the thrust bearing 8 forming, the shaft 9 annularly surrounding pivot bearing ring 20 are arranged.
  • the pivot bearing ring 20 the bearing shells of the thrust bearing 8
  • the thrust bearing 8 had its own bearing cage.
  • FIG. 4 and 5 is a concrete embodiment of the pivot bearing ring 20 and the receiving ring 10 can be seen, by which the load hook 1 on the one hand slightly on the axis 18 is pivotally on the other hand, but also the pivoting angle can be limited.
  • a gap 21 is formed in a plane perpendicular to the pivot axis 18 between the facing surfaces 10a, 20a of the receiving ring 10 and the pivot bearing ring 20, which allows pivoting of the two components 10 and 20 against each other.
  • the pivoting angle of the load hook 1 can be adjusted by the fact that the gap 21 is widening in a direction pointing radially outward.
  • This outwardly widening gap 21 can be produced in that, as in FIG. 4 and 5 shown, the contact surface 20a of the pivot bearing ring 20 relative to the contact surface 10a of the receiving ring 10 are formed inclined.
  • side walls 10b through hole of the receiving ring 10 is at least in the pivoting plane of the load hook 1 in the direction of the load hook 1 conically widened to allow the pivoting of the load hook 1.
  • the mutually facing contact surfaces 10a, 20a of the receiving ring 10 and the pivot bearing ring 20 and / or the conical side walls 10b of the receiving ring 10 thus form the Verschwenkwinkel of the load hook 1 limiting abutment surfaces.
  • Such trained suspensions for hooks 1 are characterized on the one hand by their compact design with low height and on the other hand have the advantage that the entire bearing assembly 6 can be pre-assembled outside of the support body 3.
  • For actual assembly on the support body 3 finally requires only the insertion of the shaft 9 of the load hook 1 preassembled bearing assembly 6 in the recess 2 in the support body 3 and the setting of the bearing assembly 6 via the securing element 12 on the support body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Rolling Contact Bearings (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Vehicle Body Suspensions (AREA)
  • Supports Or Holders For Household Use (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Claims (16)

  1. Suspension pour crochet de charge, notamment pour moufles inférieurs de palans, ladite suspension comportant un arbre (9) qui est monté dans un évidement (2) d'un corps de support (3) de façon à pouvoir tourner autour d'un axe vertical (11) et qui s'appuie sur le corps de support (3) par le biais d'au moins un palier axial (8) et par le biais d'une bague de réception (10) entourant annulairement l'arbre (9), la bague de réception (10) étant immobilisée dans le corps de support (3) au moyen d'un élément de sécurité (12),
    caractérisée en ce que
    l'arbre (9) du crochet de charge (1) étant logé dans un perçage traversant d'un élément d'appui (7) et étant monté sur palier dans le corps de support (3) au moyen d'un ensemble formant palier (6) constitué de l'élément d'appui (7), de l'au moins un palier axial (8) et de la bague de réception (10), en ce que l'élément de sécurité (12) est un circlips et en ce que, pour sécuriser l'ensemble formant palier (6), l'élément de sécurité (12) s'engage d'une part en arrière d'une contre-dépouille (13) du corps de support (3) et porte d'autre part contre une surface d'appui de la bague de réception (10).
  2. Suspension selon la revendication 1, caractérisée en ce que la contre-dépouille (13) dans le corps de support (3) est conformée en gorge annulaire périphérique destinée à recevoir l'élément sécurité (12).
  3. Suspension selon la revendication 1 ou 2, caractérisée en ce que l'arbre (9) du crochet de charge (1) est immobilisé au niveau de l'élément d'appui (7) au moyen d'un élément de sécurité, notamment d'un circlips, qui s'engage, une fois monté, d'une part en arrière d'une contre-dépouille (15) à l'extrémité libre de l'arbre (9) et qui est disposé d'autre part dans une cavité (16) de l'élément d'appui (7).
  4. Suspension selon la revendication 3, caractérisée en ce que la contre-dépouille (15) destinée à recevoir l'élément de sécurité (14) est conformée en gorge annulaire périphérique (15a).
  5. Suspension selon la revendication 4, caractérisée en ce que la contre-dépouille (15) destinée à recevoir l'élément de sécurité (14) est conformée en amincissement (15b) de la section d'arbre pointant depuis l'extrémité libre de l'arbre (9).
  6. Suspension selon au moins l'une des revendications 1 à 5, caractérisée en ce que l'élément d'appui (7) et/ou la bague de réception (10) présente une surface d'appui plane (7a, 10a) destinée au palier axial (8) conformé notamment en palier axial à aiguilles.
  7. Suspension selon au moins l'une des revendications 1 à 5, caractérisée en ce que l'élément d'appui (7) forme la coque de palier supérieure du palier axial (8).
  8. Suspension selon au moins l'une des revendications 1 à 7, caractérisée en ce que le crochet de charge (1) est monté dans le corps de support (3) de façon à pouvoir en plus pivoter autour d'un axe horizontal (18).
  9. Suspension selon la revendication 8, caractérisée en ce que deux rouleaux cylindriques (19), disposés entre la coque de palier inférieure du palier axial (8) et la bague de réception (10), forment l'axe de pivotement horizontal (18), les rouleaux cylindriques (19) étant disposés des deux côtés, opposés l'un à l'autre, de l'arbre (9) du crochet de charge (1) dans l'ensemble formant palier (6).
  10. Suspension selon la revendication 9, caractérisé en ce que les rouleaux cylindriques (19) sont disposés entre la bague de réception (10) et une bague de palier pivotante (20) entourant annulairement l'arbre (9) et formant la coque de palier inférieure du palier axial (8).
  11. Suspension selon la revendication 10, caractérisée en ce qu'une fente (21) est ménagée dans un plan perpendiculaire à l'axe de pivotement (18) entre les surfaces (10a, 20a), dirigées l'une vers l'autre, de la bague de réception (10) et la bague de palier pivotante (20).
  12. Suspension selon la revendication 11, caractérisée en ce que la fente (21) est conformée de façon à s'évaser dans une direction dirigée radialement vers l'extérieur.
  13. Suspension selon au moins l'une des revendications 9 à 12, caractérisée en ce que des parois latérales (10b) du perçage traversant de la bague de réception (10) sont conformées de façon s'évaser en cône au moins dans le plan de pivotement du crochet de charge (1) en direction du crochet de charge (1).
  14. Suspension selon au moins l'une des revendications 9 à 13, caractérisée en ce que les surfaces (10a, 20a), dirigées l'une vers l'autre, de la bague de réception (10) et de la bague de palier pivotante (20) et/ou les parois latérales coniques (10b) de la bague de réception (10) forment des surfaces d'appui limitant l'angle de pivotement du crochet de charge (1).
  15. Suspension selon au moins l'une des revendications 1 à 14, caractérisée en ce que au moins une poignée noyée (17) est conformée dans le corps de support (3).
  16. Suspension selon au moins l'une des revendications 1 à 15, caractérisée en ce que le corps de support (3) est un corps de liaison supportant deux poulies (4) d'un moufle inférieur (5).
EP04004899A 2003-03-06 2004-03-03 Moyen de suspension pour un crochet de levage Expired - Lifetime EP1454870B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10310087 2003-03-06
DE10310087A DE10310087A1 (de) 2003-03-06 2003-03-06 Aufhängung für Lasthaken

Publications (3)

Publication Number Publication Date
EP1454870A2 EP1454870A2 (fr) 2004-09-08
EP1454870A3 EP1454870A3 (fr) 2004-10-06
EP1454870B1 true EP1454870B1 (fr) 2011-01-19

Family

ID=32797877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04004899A Expired - Lifetime EP1454870B1 (fr) 2003-03-06 2004-03-03 Moyen de suspension pour un crochet de levage

Country Status (6)

Country Link
US (1) US7219937B2 (fr)
EP (1) EP1454870B1 (fr)
CN (1) CN100402405C (fr)
AT (1) ATE495997T1 (fr)
DE (2) DE10310087A1 (fr)
ES (1) ES2358796T3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005062333B4 (de) 2005-12-24 2011-04-14 Demag Cranes & Components Gmbh Lasthaken
DE102009017718A1 (de) 2009-04-11 2010-10-21 Demag Cranes & Components Gmbh Lastaufnahmemittel, insbesondere eine Unterflasche eines Hebezeuges
EP2388227B1 (fr) * 2010-05-20 2015-01-21 Rotzler Gmbh + Co. Kg Crochet de grue doté d'un agencement du poids de crochet
DE102011054148B4 (de) * 2011-10-04 2015-10-22 Terex Mhps Gmbh Lastaufnahmemittel, insbesondere Lasthaken
CN102701094A (zh) * 2012-06-28 2012-10-03 河南省黄河防爆起重机有限公司 钢丝绳纽绕应力释放机构
DE102012108486A1 (de) * 2012-09-11 2014-03-13 RIW-Maschinenbau GmbH Lastaufnahmevorrichtung, insbesondere Unterflasche für ein Hebezeug
US10280055B2 (en) * 2017-05-02 2019-05-07 William von Eberstein Ball joint lifting assembly and method
CN109437027B (zh) * 2018-12-19 2023-09-26 厦门厦工中铁重型机械有限公司 一种盾构机刀具吊装装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE725114C (de) * 1939-09-27 1942-09-14 Maschb Act Ges Vorm Beck & Hen Lasthaken fuer Krane o. dgl.
FR920416A (fr) * 1945-09-28 1947-04-08 Dispositif d'attache de câble pour appareils de levage et autres applications
US2625005A (en) * 1947-06-12 1953-01-13 Keller Tool Co Hoist hook assembly
US2500459A (en) * 1948-05-24 1950-03-14 William S Hoover Work supporting attachment for hoists
DE882606C (de) 1951-05-12 1953-07-09 Heuer Hammer Schwerschmieden B Haken
US2823944A (en) * 1955-08-18 1958-02-18 Heppenstall Co Movable load supporting device
SE410214B (sv) * 1978-04-11 1979-10-01 Bergs Smide Ab K A Kullagerlekare
US4708382A (en) * 1987-01-20 1987-11-24 Cooper Industries Separable lifting hook
DD274806A1 (de) * 1988-08-12 1990-01-03 Freiberger Zellstoff Papier Hakentraverse fuer doppelhaken
CN2199971Y (zh) * 1993-02-09 1995-06-07 刘永德 刚性吊钩组
CN2176352Y (zh) * 1993-12-11 1994-09-07 张玉锦 新型封闭式吊钩装置
CN2218170Y (zh) * 1994-11-23 1996-01-24 钟宗勇 锤重吊钩头
DE19602931C2 (de) * 1996-01-18 2001-04-26 Mannesmann Ag Unterflasche
DE19817011C2 (de) * 1998-04-17 2000-04-06 Stahl R Foerdertech Gmbh Seilhakenanordnung
CN2516519Y (zh) * 2002-01-17 2002-10-16 徐建 新型封闭式吊钩

Also Published As

Publication number Publication date
DE10310087A1 (de) 2004-09-23
DE502004012117D1 (de) 2011-03-03
US20040189033A1 (en) 2004-09-30
ES2358796T3 (es) 2011-05-13
EP1454870A3 (fr) 2004-10-06
CN1530317A (zh) 2004-09-22
ATE495997T1 (de) 2011-02-15
US7219937B2 (en) 2007-05-22
EP1454870A2 (fr) 2004-09-08
CN100402405C (zh) 2008-07-16

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