EP0684206B1 - Engin de levage à actionnement par main ou par moteur - Google Patents

Engin de levage à actionnement par main ou par moteur Download PDF

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Publication number
EP0684206B1
EP0684206B1 EP19950810326 EP95810326A EP0684206B1 EP 0684206 B1 EP0684206 B1 EP 0684206B1 EP 19950810326 EP19950810326 EP 19950810326 EP 95810326 A EP95810326 A EP 95810326A EP 0684206 B1 EP0684206 B1 EP 0684206B1
Authority
EP
European Patent Office
Prior art keywords
lifting
shaft
brake
lifting gear
driving
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
EP19950810326
Other languages
German (de)
English (en)
Other versions
EP0684206A1 (fr
Inventor
Anton Grob
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.)
Grapha Holding AG
Original Assignee
Grapha Holding AG
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 Grapha Holding AG filed Critical Grapha Holding AG
Publication of EP0684206A1 publication Critical patent/EP0684206A1/fr
Application granted granted Critical
Publication of EP0684206B1 publication Critical patent/EP0684206B1/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
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/12—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/04—Driving gear manually operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/18—Power-operated hoists
    • B66D3/20—Power-operated hoists with driving motor, e.g. electric motor, and drum or barrel contained in a common housing

Definitions

  • the invention relates to a hand or motor operated Hoists, such as pulley blocks or electric hoists, whose load carriers via a lifting gear having a drive roller at the output end is non-positively connected to a drive element, wherein the drive shaft of the drive member is the hub of a drive wheel of the lifting gear coaxially penetrates.
  • Lifting devices of this type are used, among other things, in warehouses and workshops or repair and service companies as well as for handling goods with a lower weight.
  • Such hoists are often attached to a frame that can be moved on a crane runway, a so-called trolley, or are movably arranged on a pivotable boom designed as a crane runway.
  • Hall cranes, gantry cranes, construction cranes etc. are also equipped with such hoists.
  • hoists Due to the universal use of such hoists, practical handling and a compact design with high reliability are required. In addition, it is important that these hoists have an even weight distribution compared to the suspension device, especially if they are attached to a hook-like device or an eyelet.
  • a hoist with the features mentioned above is disclosed EP - A - 0 284 807 as an electric train with a housing, in an electric motor with a sliding anchor for ventilation a braking device, and a reduction or. Lifting gear is arranged. On an output shaft as a spur gear trained lifting gear is a chain sprocket attached, partially by a load carrier from chain links is entwined. The actuation of the braking device takes place by axially moving the armature by means of a compression spring in the de-energized state of the electric motor. Due to the lack Self-locking of the helical gear unit with hanging load high reliability is placed on the braking device.
  • the object of the present invention is to provide a hoist to perform the type mentioned above, the above-mentioned Have advantages and their construction a high level of operational reliability guaranteed.
  • the Drive shaft as a worm shaft provided as a lifting gear Worm gear is designed, being as a drive member a manual drive in the form of a reel wheel or Motors, preferably electric motors, can be used.
  • a manual drive in the form of a reel wheel or Motors preferably electric motors.
  • the coupling part attached to the hollow shaft forms expediently the driven part of a lifting brake, the one connected to the housing of the lifting gear stationary part is completed.
  • the design according to the invention allows the lifting brake to be designed as a disc, band or shoe brake.
  • the drive shaft is preferably on that of the drive member opposite end in the in the housing of the jack stored hollow shaft.
  • FIG. 1 to 3 show a hoist designated 1 for lifting loads by means of a chain designed as a load carrier 2, of which two chain links 3 engaging in the driven chain sprocket 4 determined as the drive roller 4 can be seen in FIG. 2.
  • the chain sprocket 4 is part of a gear shaft 5, which is firmly connected to a driven wheel — here worm wheel 6 of a worm gear 7.
  • the gear shaft 5 is supported at both ends in a housing 8 of the worm gear 7, which is referred to as a lifting gear 9.
  • Reference number 10 shows a so-called chain detaching tongue which separates the chain strands (not shown).
  • Fig. 1 shows the hoist 1 in its essential parts.
  • the worm shaft 16 is designed as a hollow shaft 17, which is coaxially penetrated by the drive shaft 11.
  • the bearing of the drive shaft is provided on the one hand at the front ends of the motor 12 and at the opposite end in the hollow shaft 17, which in turn is mounted in the housing 8 of the lifting gear 9.
  • seals 18 are provided for sealing the housing 8 of the lifting gear.
  • the housing 8 of the lifting gear 9 ends in a flange-like manner for fastening a disc brake 19 and electrical control parts (not visible) which are protected by a cover 20 which can be screwed onto the housing 8.
  • the two-part friction clutch 14 fastened to the ends of the drive shaft 11 and the hollow shaft 17 has an axially immovable first coupling part 21 which is wedged onto the hollow shaft 17 and a second coupling part 22 which is also axially displaceably fastened to the drive shaft 11, both of which have an annular shape are and the mutually facing end faces are provided with clutch linings 23.
  • a permanent frictional engagement of the coupling parts 21, 22 forms a compression spring 24 clamped behind the second coupling part 22, the effect of which can be adjusted by a nut 25 on an extension of the drive shaft 11 designed as a thread 26.
  • a lock nut 27 secures nut 25.
  • the lifting brake designed as a disc or multi-disc brake 19 consists of a stationary part 28 as a housing in which annular plates 29 are anchored against rotation and the first coupling part 21, which forms the hub of a driven plate 30 immersed between the stationary plates 29.
  • a bushing 31 also shown in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Gear Transmission (AREA)

Claims (4)

  1. Engin de levage à actionnement manuel ou motorisé (1), tel que moufles ou palans électriques, dont le porte-charge (2) est relié par adhérence, via un engrenage de levage (9) comportant en l'extrémité motrice un rouleau de commande (4), à un organe d'entraínement, l'arbre de transmission (11) de l'organe d'entraínement traversant ce faisant coaxialement le moyeu d'une roue de commande (15) de l'engrenage de levage (9), caractérisé en ce que la roue de commande (15) de l'engrenage de levage (9) est conçue sous forme d'un arbre à vis sans fin creux (16) d'un engrenage à vis sans fin.
  2. Engin de levage selon la revendication 1, caractérisé en ce qu'un élément d'accouplement (21) fixé à l'arbre à vis sans fin creux (16) est conçu comme élément d'un frein de levage (19).
  3. Engin de levage selon la revendication 2, caractérisé en ce que le frein de levage (19) est conçu sous forme d'un frein à disque ou d'un frein à bande.
  4. Engin de levage selon l'une des revendications 1 à 3, caractérisé en ce que l'arbre de transmission (11) est logé en l'extrémité opposée à l'organe d'entraínement dans l'arbre à vis sans fin (16) placé dans un carter (8) de l'engrenage de levage (9).
EP19950810326 1994-05-26 1995-05-17 Engin de levage à actionnement par main ou par moteur Expired - Lifetime EP0684206B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH01632/94A CH687874A5 (de) 1994-05-26 1994-05-26 Hand- oder motorisch betriebenes Hebezeug.
CH163294 1994-05-26
CH1632/94 1994-05-26

Publications (2)

Publication Number Publication Date
EP0684206A1 EP0684206A1 (fr) 1995-11-29
EP0684206B1 true EP0684206B1 (fr) 2000-07-26

Family

ID=4214989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950810326 Expired - Lifetime EP0684206B1 (fr) 1994-05-26 1995-05-17 Engin de levage à actionnement par main ou par moteur

Country Status (3)

Country Link
EP (1) EP0684206B1 (fr)
CH (1) CH687874A5 (fr)
DE (1) DE59508596D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19927847C1 (de) * 1999-06-18 2000-10-12 Hoffmann Foerdertechnik Gmbh W Lastsicherndes Bremskupplungssystem für kraftangetriebene Hebezeuge, insbesondere für Elektrokettenzüge

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR572415A (fr) * 1923-01-11 1924-06-05 Perfectionnements aux élévateurs ou palans à chaînes
DE1431962A1 (de) * 1967-01-20 1969-05-29 Hoffmann & Co Kg Durch einen Elektromotor angetriebene Kettenwinde
JPS5939694A (ja) * 1982-08-25 1984-03-05 株式会社キト− 巻上兼牽引装置
DE3710332C1 (de) * 1987-03-28 1988-07-21 Stahl R Foerdertech Gmbh Elektrozug

Also Published As

Publication number Publication date
EP0684206A1 (fr) 1995-11-29
CH687874A5 (de) 1997-03-14
DE59508596D1 (de) 2000-08-31

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