EP0686596B1 - Manually- or motor actuated hoist - Google Patents

Manually- or motor actuated hoist Download PDF

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Publication number
EP0686596B1
EP0686596B1 EP19950810353 EP95810353A EP0686596B1 EP 0686596 B1 EP0686596 B1 EP 0686596B1 EP 19950810353 EP19950810353 EP 19950810353 EP 95810353 A EP95810353 A EP 95810353A EP 0686596 B1 EP0686596 B1 EP 0686596B1
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EP
European Patent Office
Prior art keywords
drive
hoist
housing part
load carrier
shaft
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
EP19950810353
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German (de)
French (fr)
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EP0686596A1 (en
Inventor
Beat Iseli
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
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Grapha Holding AG
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Publication date
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Publication of EP0686596A1 publication Critical patent/EP0686596A1/en
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Publication of EP0686596B1 publication Critical patent/EP0686596B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B66D3/26—Other details, e.g. housings
    • 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
    • B66D3/16—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable operated by an endless chain passing over a pulley or a sprocket
    • 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 manually or motor-driven, single or multi-leg hoist with a lifting mechanism having a suspension device in which a drive roller, which drives a load carrier and is connected to a drive element, is mounted, between the drive element and a coupling connecting the drive element to the load carrier the lifting gear is arranged.
  • Such hoists resp. Pulley systems are marketed by GIS AG, CH-6247 Schötz with the type designation EM 50 and are known for transport systems and equipment in the construction industry, in warehouses, workshops for handling goods and / or for assembling machines and equipment.
  • As drive elements they have, for example, a reel wheel that can be driven manually by means of a chain or an electric motor.
  • the coupling between the drive element and the lifting gear is designed for frictional engagement, that is to say a force fit, and a link chain is often used as the load carrier, which is moved by a so-called chain sprocket as the drive roller.
  • FR - A - 1'559'938 mediates a manually operated hoist, whose housing has a suspension device, wherein a load carrier is effective within the housing driving, connected with a reel wheel as a drive member Drive roller is mounted.
  • the object of the invention is therefore a hoist of the beginning to create the type mentioned, in which the disadvantages listed are resolved and that undemanding maintenance and one demanding operation guaranteed.
  • the suspension device is formed from a housing part receiving the one-sided mounting of the drive roller of the load carrier, which drive drive is connected to the lifting gear , and which is designed as a releasably connected part of a housing part surrounding the lifting gear, i.e. corresponds to a solution that is not only suitable characterized as service-friendly, but also allows a compact design of a hoist.
  • the embodiment according to the invention proves to be particularly advantageous then when the housing part as a releasably connected Part of the housing surrounding the hoist gear is, which favors accessibility for maintenance and service becomes.
  • Hoists with a lifting gear designed as a worm gear, in which the drive member is connected to the worm shaft, can advantageously be further developed by the housing part forming the one-sided mounting of the worm wheel, the drive roller being arranged between the latter.
  • the housing part is expediently designed as a bearing shell for receiving a roller bearing and the latter is arranged separated from the worm gear by a shaft seal, so that oil bath lubrication of the worm gear designed as a lifting gear can occur.
  • a tight design or short worm shaft is preferred thereby achieve when the drive roller of the load carrier on the section of the bearing shell associated with the Worm shaft is arranged.
  • the embodiment according to the invention is also suitable for installation a load carrier or chain release tongue, for which on the A slot-like recess is provided on the underside of the housing part is.
  • the lifting device according to the invention sees as a suspension device one provided on the housing part and projecting beyond the lifting gear Hanger eyelet or an equivalent element.
  • the opening of the suspension eye is preferably approximately parallel to the axis of the drive roller, respectively. arranged the worm shaft.
  • the design of the housing part in connection with the lifting gear makes it possible to set the distance between worm gear and to make the drive roller on the worm shaft tight by only the narrow shaft seal is in between, so that due to the distance mentioned, at most a minimal one Return torque related to the center of gravity of the hoist is created by the special arrangement and training the suspension device at least approximately balanced can be.
  • the cylindrical bearing bore of the housing part in upper radius with a radial guide groove for an as Link chain, round steel or roller chain trained load carriers Mistake.
  • the housing part is preferably made of more wear-resistant Steel made while the rest of the part of the lifting gear can be made of a light alloy.
  • the housing part has a cylindrical attachment, which proves to be production-friendly, the scope of overlapping radial and face plane, also with different diameters, on the other housing part of the Lifting gear adjacent sealing surfaces is formed.
  • the sealing surfaces can achieve absolute tightness be coated with a known sealant.
  • cylindrical mounting device arranged coaxially to the bearing bore is, so that with a single clamping process one machining can be achieved by turning.
  • FIG. 1 and 2 show a complete hoist designated 1, which has a round steel chain as the load carrier 2, which is driven by an electric motor as the drive element 3.
  • the motor housing 4 is partially connected to the housing 5 of the releasably attached lifting gear 6.
  • a worm gear is provided as the lifting gear 6, the worm shaft 7 of which is drive-connected to the drive shaft 8.
  • the worm shaft 7 is hollow and is coaxially penetrated by the extended drive shaft 8.
  • the ends of the worm shaft 7 and the drive shaft 8 opposite the drive element 3 are connected by a friction clutch 9, which interrupts the drive connection to the drive element 3 when the load carrier is overloaded.
  • the adjustable drive connection of the friction clutch 9 consisting of two clutch parts 10, 11 is created by a compression spring 12 which presses against the clutch part 10 by a nut 13 on the motor shaft end formed with a thread 14.
  • the coupling parts 10, 11 are each firmly connected by wedges to the drive elements 7, 8 assigned to them.
  • a braking device 15 is arranged on the friction clutch side of the lifting gear 6, the fixed part 16 of which is firmly connected to the housing 5 of the lifting gear 6, while the rotating part, a disk 17, is coupled to the coupling part 11 on the worm shaft 7.
  • Reference numeral 15 indicates an electromagnetically actuated braking device, of which the pressing ring 18 required for brake ventilation or braking effect can be seen in FIG. 2.
  • the worm shaft 7 is mounted on its outside in the housing 5 of the lifting gear 6, while the continuous motor shaft 8 rotates on the one hand at the coupling end within the worm shaft 7 provided with a cylindrical bore and on the motor side in the common housing wall of the drive member 3 and the lifting gear.
  • the housing 5 of the lifting gear 6 is provided with a shaft seal 20, 21 acting on the drive shaft 8 and the worm shaft 7 with respect to the drive member 3 and the friction clutch 9.
  • a housing part 23 of the lifting gear 6 is provided as the suspension device 22 of the lifting device 1, which has a hanging part 24 projecting above the lifting device 1.
  • 3 illustrates the suspension device 22 as an individual part.
  • the suspension device 22 has, in the area of the housing part 23, the one-sided mounting of the drive roller 25 or drive nut of the guided round steel chain which is connected to the lifting gear 6, the drive roller 25 being firmly connected to the shaft 26 of the driven worm wheel 27 for this purpose.
  • the housing part 23 thus forms part of the worm gear designed as a lifting gear 6 and is detachably connected to it (shown in the figures).
  • the housing part 23 is designed in the manner of a bearing shell for receiving a roller bearing 28 of the shaft 26, so that, as shown in FIG. 1, a compact design is achieved which has a large positive effect on the hoist 1.
  • the underside of the housing part 23 is formed with a slot-like recess 29, which is penetrated by a load carrier release tongue 30.
  • the suspension part 24 of the suspension device 22 has an eyelet-like opening, respectively.
  • a suspension eye 31 which runs approximately parallel to the axis of the shaft 26 or the drive roller 25. 1 is located between a vertical plane lying in the axis of rotation of the worm shaft 7 and one which runs through the longitudinal central axis of the round steel chain designed as a load carrier 2, the eyelet section of the suspension device 22 preferably closer to the vertical plane of the load carrier 2 and on the other hand between a through the load string of the load carrier perpendicular to the axis of the worm shaft 7, respectively.
  • Drive shaft 8 and a vertical extending through the center of gravity (S) of the hoist lying in the axis of the worm shaft 7 is arranged.
  • the housing part 23 surrounding the drive roller 25 through a bore has, in the upper radius, a radial guide groove 32 which extends over the load carrier 2 and into which the load carrier 2 is partially immersed.
  • This guide groove 32 forms the impetus for the steel formation of the suspension device.
  • the housing part 23 Concentric to the bore of the rolling bearing 28, the housing part 23 has a cylindrical attachment device 33, which is formed on the circumference by overlapping radial and face-end, also with different diameters, sealing sections 34 abutting the housing 5 (see FIG. 1).
  • the cylindrical attachment device 33 is arranged coaxially with the roller bearing 28.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)
  • General Details Of Gearings (AREA)

Description

Die Erfindung betrifft ein hand- oder motorisch angetriebenes, ein- oder mehrsträngiges Hebezeug mit einem eine Aufhängevorrichtung aufweisenden Hubgetriebe in welchem eine einen Lastträger förderwirksam antreibende, mit einem Antriebsorgan verbundene Antriebsrolle gelagert ist, wobei zwischen dem Antriebsorgan und einer das Antriebsorgan mit dem Lastträger antriebsverbindenden Kupplung das Hubgetriebe angeordnet ist.The invention relates to a manually or motor-driven, single or multi-leg hoist with a lifting mechanism having a suspension device in which a drive roller, which drives a load carrier and is connected to a drive element, is mounted, between the drive element and a coupling connecting the drive element to the load carrier the lifting gear is arranged.

Solche Hebezeuge resp. Flaschenzüge werden von der GIS AG, CH-6247 Schötz mit der Typenbezeichnung EM 50 vertrieben und sind bekannt bei Transportanlagen und -einrichtungen im Baugewerbe, in Lagern, Werkstätten zum Umschlag von Waren und/oder zur Montage von Maschinen und Einrichtungen.
Als Antriebsorgane weisen sie beispielsweise ein mittels Kette von Hand antreibbares Haspelrad oder einen Elektromotor auf. Die Kupplung zwischen Antriebsorgan und Hubgetriebe ist sicherheitshalber für einen Reibungsschluss, also kraftschlüssig ausgelegt und als Lastträger wird oft eine Gliederkette verwendet, die von einer sog. Kettennuss als Antriebsrolle bewegt wird. Such hoists resp. Pulley systems are marketed by GIS AG, CH-6247 Schötz with the type designation EM 50 and are known for transport systems and equipment in the construction industry, in warehouses, workshops for handling goods and / or for assembling machines and equipment.
As drive elements, they have, for example, a reel wheel that can be driven manually by means of a chain or an electric motor. For safety's sake, the coupling between the drive element and the lifting gear is designed for frictional engagement, that is to say a force fit, and a link chain is often used as the load carrier, which is moved by a so-called chain sprocket as the drive roller.

Die FR - A - 1'559'938 vermittelt ein manuell betätigbares Hebezeug, dessen Gehäuse eine Aufhängevorrichtung aufweist, wobei innerhalb des Gehäuses eine einen Lastträger förderwirksam antreibende, mit einem Haspelrad als Antriebsorgan verbundene Antriebsrolle gelagert ist.FR - A - 1'559'938 mediates a manually operated hoist, whose housing has a suspension device, wherein a load carrier is effective within the housing driving, connected with a reel wheel as a drive member Drive roller is mounted.

Nebst einer erstrebenswerten kompakten Bauweise und einer direkten Antriebseinwirkung ist von Bedeutung, dass die durch die Aufhängevorrichtung an Trägern befestigten Hebezeuge sich selbsttätig in eine ideale Gleichgewichtslage ausrichten. Insbesondere das Ausbalancieren des Hebezeuges um die Achse des Antriebsorgans stellt hohe Ansrüche, weil u.a. der Verschleiss der mit dem Lastträger zusammenwirkenden Elemente und die Funktionsfähigkeit sowie der Betriebslärm des Hebezeuges davon betroffen sind.In addition to a desirable compact design and a direct Impact is important that through the suspension device is attached to girders align automatically in an ideal equilibrium position. In particular balancing the hoist around the axis of the Drive organs make high demands because, among other things the wear the elements interacting with the load carrier and the functionality as well as the operating noise of the hoist thereof are affected.

Aufgabe der Erfindung ist es somit, ein Hebezeug der eingangs genannten Art zu schaffen, bei dem die aufgeführten Nachteile behoben sind und das einen anspruchslosen Unterhalt und einen anforderungsreichen Betrieb gewährleistet.The object of the invention is therefore a hoist of the beginning to create the type mentioned, in which the disadvantages listed are resolved and that undemanding maintenance and one demanding operation guaranteed.

Erfindungsgemäss wird diese Aufgabe dadurch gelöst, dass die Aufhängevorrichtung aus einem die einseitige Lagerung der mit dem Hubgetriebe antriebsverbundenen Antriebsrolle des Lastträgers aufnehmenden Gehäuseteils gebildet ist, der als lösbar verbundenes Teilwerk eines das Hubgetriebe umgebenden Gehäuseteils ausgebildet ist , also einer Lösung entspricht, die sich nicht nur als servicefreundlich auszeichnet, sondern auch eine kompakte Ausgestaltung eines Hebezeuges erlaubt.According to the invention, this object is achieved in that the suspension device is formed from a housing part receiving the one-sided mounting of the drive roller of the load carrier, which drive drive is connected to the lifting gear , and which is designed as a releasably connected part of a housing part surrounding the lifting gear, i.e. corresponds to a solution that is not only suitable characterized as service-friendly, but also allows a compact design of a hoist.

Besonders vorteilhaft erweist sich die erfindungsgemässe Ausführung dann, wenn das Gehäuseteil als lösbar verbundenes Teilwerk des das Hubgetriebe umgebenden Gehäuses ausgebildet ist, wodurch die Zugänglichkeit für Unterhalt und Service begünstigt wird. The embodiment according to the invention proves to be particularly advantageous then when the housing part as a releasably connected Part of the housing surrounding the hoist gear is, which favors accessibility for maintenance and service becomes.

Hebezeuge mit einem als Schneckengetriebe ausgebildeten Hubgetriebe, bei dem das Antriebsorgan mit der Schneckenwelle verbunden ist, kann dadurch vorteilhaft weiterausgestaltet werden, indem der Gehäuseteil die einseitige Lagerung des Schnekkenrades bildet, wobei zwischen letzteren die Antriebsrolle angeordnet ist.
Zweckmässigerweise ist der Gehäuseteil als Lagerschale zur Aufnahme eines Wälzlagers ausgebildet und letzteres von dem Schneckengetriebe durch eine Wellendichtung abgetrennt angeordnet, sodass eine Oelbadschmierung des als Hubgetriebe ausgebildeten Schneckengetriebes entstehen kann.Hoists with a lifting gear designed as a worm gear, in which the drive member is connected to the worm shaft, can advantageously be further developed by the housing part forming the one-sided mounting of the worm wheel, the drive roller being arranged between the latter.
The housing part is expediently designed as a bearing shell for receiving a roller bearing and the latter is arranged separated from the worm gear by a shaft seal, so that oil bath lubrication of the worm gear designed as a lifting gear can occur.

Eine enge Bauweise resp. kurze Schneckenwelle lässt sich vorzugsweise dadurch erreichen, wenn die Antriebsrolle des Lastträgers an dem der Lagerschale zugeordneten Abschnitt der Schneckenwelle angeordnet ist.A tight design or short worm shaft is preferred thereby achieve when the drive roller of the load carrier on the section of the bearing shell associated with the Worm shaft is arranged.

Die erfindungsgemässe Ausführung eignet sich auch zum Einbau einer Lastträger- bzw. Kettenablösezunge, für welche an der Unterseite des Gehäuseteils eine schlitzartige Ausnehmung vorgesehen ist.The embodiment according to the invention is also suitable for installation a load carrier or chain release tongue, for which on the A slot-like recess is provided on the underside of the housing part is.

Als Aufhängevorrichtung sieht das erfindungsgemässe Hebezeug eine an dem Gehäuseteil vorgesehene, über das Hubgetriebe vorstehende Aufhängeöse oder ein zweckgleiches Element vor.The lifting device according to the invention sees as a suspension device one provided on the housing part and projecting beyond the lifting gear Hanger eyelet or an equivalent element.

Vorzugsweise ist die Oeffnung der Aufhängeöse etwa parallel zur Achse der Antriebsrolle resp. der Schneckenwelle angeordnet.The opening of the suspension eye is preferably approximately parallel to the axis of the drive roller, respectively. arranged the worm shaft.

Bedeutungsvoll für das Funktionieren des Hebezeuges ist die richtige Anordnung der Aufhängevorrichtung an dem Hebezeug zu dessen Ausbalancierung, zur Vermeidung eines hohen Verschleisses an dem Lastträger oder den mit ihm zusammenwirkenden Elementen wie Antriebsrolle und Führung des Lastträgers im Gehäuseteil, wozu die Aufhängeöse einerseits in dem durch eine in der Drehachse der Schneckenwelle des Hubgetriebes und eine in der durch den Lastträger verlaufenden, parallelen Vertikalebene gebildeten Zwischenraum, näher bei der durch den Lastträger verlaufenden Vertikalebene, und andererseits zwischen einer durch den Laststrang des Lastträgers senkrecht zur Achse der Schneckenwelle und einer durch den in der Achse der Schneckenwelle liegenden Schwerpunkt (S) des Hebezeuges verlaufenden Vertikalen angeordnet ist. This is important for the functioning of the hoist correct arrangement of the suspension device on the hoist its balance, to avoid high wear on the load carrier or the elements interacting with it such as drive roller and load carrier guidance in the housing part, why the hanging loop on the one hand in the in the axis of rotation of the worm shaft of the lifting gear and one in the parallel through the load carrier Vertical space formed, closer to that through the vertical plane extending the load carrier, and on the other hand between one through the load string of the load carrier perpendicular to the axis of the worm shaft and one through the in center of gravity (S) of the hoist extending vertical is arranged.

Die Ausgestaltung des Gehäuseteils in Verbindung mit dem Hubgetriebe macht es möglich, den Abstand zwischen Schneckenrad und Antriebsrolle an der Schneckenwelle eng zu gestalten, indem nurmehr die schmale Wellendichtung dazwischen liegt, sodass durch den genannten Abstand allenfalls ein minimales Rückstellmoment auf die Schwerpunktlage des Hebezeuges bezogen entsteht, das durch die besondere Anordnungsweise und Ausbildung der Aufhängevorrichtung wenigstens annähernd ausgeglichen werden kann.The design of the housing part in connection with the lifting gear makes it possible to set the distance between worm gear and to make the drive roller on the worm shaft tight by only the narrow shaft seal is in between, so that due to the distance mentioned, at most a minimal one Return torque related to the center of gravity of the hoist is created by the special arrangement and training the suspension device at least approximately balanced can be.

Um den Lastträger auf der Antriebsrolle zuverlässig bewegen zu können, ist die zylindrische Lagerbohrung des Gehäuseteils im oberen Halbmesser mit einer radialen Führungsnut für einen als Gliederkette, Rundstahl oder Rollenkette ausgebildeten Lastträger versehen.To reliably move the load carrier on the drive roller can, the cylindrical bearing bore of the housing part in upper radius with a radial guide groove for an as Link chain, round steel or roller chain trained load carriers Mistake.

Dementsprechend ist der Gehäuseteil vorzugsweise aus verschleissfesterem Stahl hergestellt, während der übrige Teil des Hubgetriebes aus einer Leichtmetalllegierung sein kann.Accordingly, the housing part is preferably made of more wear-resistant Steel made while the rest of the part of the lifting gear can be made of a light alloy.

Zur weiteren Abdichtung des Hubgetriebes gegen Oelverluste, besitzt der Gehäuseteil eine zylindrische Anbauvorrichtung, die sich als fertigungsfreundlich erweist, deren Umfang durch sich übergreifende radiale und stirnseitig plane, auch mit unterschiedlichen Durchmessern, an dem anderen Gehäuseteil des Hubgetriebes anliegende Dichtungsflächen ausgebildet ist. Zur Erzielung einer absoluten Dichtheit können die Dichtungsflächen mit einer bekannten Dichtungsmasse bestrichen werden.To further seal the lifting gear against oil loss, the housing part has a cylindrical attachment, which proves to be production-friendly, the scope of overlapping radial and face plane, also with different diameters, on the other housing part of the Lifting gear adjacent sealing surfaces is formed. For The sealing surfaces can achieve absolute tightness be coated with a known sealant.

Zur einfachen Herstellung trägt auch das Merkmal bei, dass die zylindrische Anbauvorrichtung koaxial zur Lagerbohrung angeordnet ist, sodass mit einem einmaligen Aufspannvorgang eine spanabhebende Bearbeitung durch Drehen erreicht werden kann.The feature that the cylindrical mounting device arranged coaxially to the bearing bore is, so that with a single clamping process one machining can be achieved by turning.

Anschliessend wird das erfindungsgemässe Hebezeug unter Bezugnahme auf die Zeichnung, auf die bezüglich aller in der Beschreibung nicht näher erwähnten Einzelheiten (siehe auch Dubbel, 16. Aufl./1987) ausdrücklich verwiesen wird, erläutert. Es zeigen:

Fig. 1
einen Querschnitt durch ein erfindungsgemässes Hebezeug an der Schneckenwelle eines als Hubgetriebe ausgebildeten Schneckengetriebes,
Fig. 2
einen Längsschnitt durch die Schneckenwelle des Hubgetriebes gemäss Fig. 1 und
Fig. 3
eine Seitenansicht der Aufhängevorrichtung des erfindungsgemässen Hebezeuges gemäss Fig. 1.
The lifting device according to the invention is then explained with reference to the drawing, to which express reference is made to all details not mentioned in the description (see also Dubbel, 16th edition / 1987). Show it:
Fig. 1
2 shows a cross section through a lifting device according to the invention on the worm shaft of a worm gear designed as a lifting gear,
Fig. 2
a longitudinal section through the worm shaft of the lifting gear according to FIGS. 1 and
Fig. 3
2 shows a side view of the suspension device of the lifting device according to the invention as shown in FIG. 1.

Die Fig. 1 und 2 zeigen ein mit 1 bezeichnetes komplettes Hebezeug, das als Lastträger 2 eine Rundstahlkette aufweist, die von einem Elektromotor als Antriebsorgang 3 angetrieben ist. Das Motorgehäuse 4 ist teilweise mit dem Gehäuse 5 des lösbar befestigten Hubgetriebes 6 verbunden. Als Hubgetriebe 6 ist ein Schneckengetriebe vorgesehen, dessen Schneckenwelle 7 mit der Antriebswelle 8 antriebsverbunden ist. Zu diesem Zweck ist die Schneckenwelle 7 hohl ausgebildet und wird von der verlängerten Antriebswelle 8 koaxial durchsetzt. Die dem Antriebsorgan 3 gegenüberliegenden Enden der Schneckenwelle 7 und der Antriebswelle 8 sind durch eine Reibungskupplung 9 verbunden, die bei Überlastung an dem Lastträger die Antriebsverbindung zum Antriebsorgan 3 unterbricht. Die einstellbare Antriebsverbindung der aus zwei Kupplungsteilen 10,11 bestehenden Reibungskupplung 9 entsteht durch eine Druckfeder 12, die durch eine Mutter 13 auf dem mit einem Gewinde 14 ausgebildeten Motorwellenende gegen den Kupplungsteil 10 drückt. Die Kupplungsteile 10,11 sind jeweils durch Keile mit den ihnen zugeordneten Antriebselementen 7,8 fest verbunden.
Überdies ist auf der Reibungskupplungsseite des Hubgetiebes 6 eine Bremsvorrichtung 15 angeordnet, deren feststehender Teil 16 mit dem Gehäuse 5 des Hubgetriebes 6 fest verbunden ist, während der drehende Teil, eine Scheibe 17, mit dem Kupplungsteil 11 an der Schneckenwelle 7 gekuppelt ist. Bezugszeichen 15 deutet auf eine elektromagnetisch betätigbare Bremsvorrichtung hin, von welcher in Fig. 2 der zur Bremslüftung oder Bremswirkung erforderliche Anpressring 18 erkennbar ist. Näher auf die Reibungskupplung 9 und die als Lamellen- oder Scheibenbremse ausgebildete Bremsvorrichtung 15 einzutreten, erweist sich als überflüssig, denn sie sind dem Stand der Technik entnehmbar.1 and 2 show a complete hoist designated 1, which has a round steel chain as the load carrier 2, which is driven by an electric motor as the drive element 3. The motor housing 4 is partially connected to the housing 5 of the releasably attached lifting gear 6. A worm gear is provided as the lifting gear 6, the worm shaft 7 of which is drive-connected to the drive shaft 8. For this purpose, the worm shaft 7 is hollow and is coaxially penetrated by the extended drive shaft 8. The ends of the worm shaft 7 and the drive shaft 8 opposite the drive element 3 are connected by a friction clutch 9, which interrupts the drive connection to the drive element 3 when the load carrier is overloaded. The adjustable drive connection of the friction clutch 9 consisting of two clutch parts 10, 11 is created by a compression spring 12 which presses against the clutch part 10 by a nut 13 on the motor shaft end formed with a thread 14. The coupling parts 10, 11 are each firmly connected by wedges to the drive elements 7, 8 assigned to them.
In addition, a braking device 15 is arranged on the friction clutch side of the lifting gear 6, the fixed part 16 of which is firmly connected to the housing 5 of the lifting gear 6, while the rotating part, a disk 17, is coupled to the coupling part 11 on the worm shaft 7. Reference numeral 15 indicates an electromagnetically actuated braking device, of which the pressing ring 18 required for brake ventilation or braking effect can be seen in FIG. 2. To step closer to the friction clutch 9 and the brake device 15, which is designed as a multi-disk or disc brake, has proven to be superfluous, since they can be found in the prior art.

Die Schneckenwelle 7 ist an ihrer Aussenseite im Gehäuse 5 des Hubgetriebes 6 gelagert, während die durchgehende Motorwelle 8 einerseits am Kupplungsende innerhalb der mit einer zylindrischen Bohrung versehenen Schneckenwelle 7 und motorseits in der gemeinsamen Gehäusewand von Antriebsorgan 3 und Hubgetriebe drehbar ruht.
Darüberhinaus ist das Gehäuse 5 des Hubgetriebes 6 hinsichtlich Antriebsorgan 3 und Reibungskupplung 9 mit jeweils einer auf die Antriebswelle 8 und die Schneckenwelle 7 einwirkenden Wellendichtung 20,21 versehen.The worm shaft 7 is mounted on its outside in the housing 5 of the lifting gear 6, while the continuous motor shaft 8 rotates on the one hand at the coupling end within the worm shaft 7 provided with a cylindrical bore and on the motor side in the common housing wall of the drive member 3 and the lifting gear.
In addition, the housing 5 of the lifting gear 6 is provided with a shaft seal 20, 21 acting on the drive shaft 8 and the worm shaft 7 with respect to the drive member 3 and the friction clutch 9.

Als Aufhängevorrichtung 22 des Hebezeuges 1 ist ein Gehäuseteil 23 des Hubgetriebes 6 vorgesehen, der einen über das Hebezeug 1 vorstehenden Aufhängeteil 24 aufweist. Fig. 3 veranschaulicht die Aufhängevorrichtung 22 als Einzelteil. Die Aufhängevorrichtung 22 weist im Bereich des Gehäuseteils 23 die einseitige Lagerung der mit dem Hubgetriebe 6 antriebsverbundenen Antriebsrolle 25 bzw. Antriebsnuss der geführten Rundstahlkette auf, wobei hierzu die Antriebsrolle 25 mit der Welle 26 des angetriebenen Schneckenrades 27 fest verbunden ist. Der Gehäuseteil 23 bildet somit Teilwerk des als Hubgetriebe 6 ausgebildeten Schneckengetriebes und ist mit diesem lösbar verbunden (aus den Figuren ersichtlich). Zwischen der Antriebsrolle 25 und dem Schneckenrad 27 befindet sich eine im Gehäusteil 23 befestigte und auf die Welle 26 zwischen den Gehäuseteilen 5,23 des Hubgetriebes 6 wirkende Dichtung 35 zur Sicherung des Schmiermittels für das Schneckengetriebe. Auf der gegenüberliegenden Seite ist die Welle 26 des Schneckenrades 27 im Gehäuse 5 des Hubgetriebes 6 gelagert.
Der Gehäuseteil 23 ist nach der Art einer Lagerschale zur Aufnahme eines Wälzlagers 28 der Welle 26 ausgestaltet, sodass gemäss Darstellung in Fig. 1 eine kompakte Bauweise zustande kommt, die sich auf das Hebezeug 1 in hohem Masse positiv auswirkt.
Die Unterseite des Gehäuseteils 23 ist mit einer schlitzartigen Ausnehmung 29 ausgebildet, die von einer Lastträgerablösezunge 30 durchsetzt wird.
Der Aufhängeteil 24 der Aufhängevorrichtung 22 weist eine ösenartige Öffnung resp. eine Aufhängeöse 31 auf, die etwa parallel zur Achse der Welle 26 bzw. der Antriebsrolle 25 verläuft.
Die Aufhängeöse 31 bzw. deren zugeordneter Abschnitt an dem laschenartigen Aufhängeteil 24 befindet sich gemäss Fig. 1 zwischen einer in der Drehachse der Schneckenwelle 7 liegenden Vertikalebene und einer solchen, die durch die Längsmittelachse der als Lastträger 2 ausgebildeten Rundstahlkette verläuft, wobei der Oesenabschnitt der Aufhängevorrichtung 22 vorzugsweise näher zur Vertikalebene des Lastträgers 2 und andererseits zwischen einer durch den Laststrang des Lastträgers senkrecht zur Achse der Schneckenwelle 7 resp. Antriebswelle 8 und einer durch den in der Achse der Schneckenwelle 7 liegenden Schwerpunkt (S) des Hebezeuges verlaufenden Vertikalen angeordnet ist.
Der die Antriebsrolle 25 durch eine Bohrung umgebende Gehäuseteil 23 weist im oberen Halbmesser eine über dem Lastträger 2 verlaufende radiale Führungsnut 32 auf, in die der Lastträger 2 teilweise eintaucht.
Diese Führungsnut 32 bildet den Anstoss zur stählernen Ausbildung der Aufhängevorrichtung. Konzentrisch zur Bohrung des Wälzlagers 28 weist der Gehäuseteil 23 eine zylindrische Anbauvorrichtung 33 auf, die am Umfang durch sich überdeckende radiale und stirnseitig plane, auch mit unterschiedlichen Durchmessern, an dem Gehäuse 5 anliegende Dichtungsabschnitte 34 ausgebildet ist (siehe Fig. 1). Die zylindrische Anbauvorrichtung 33 ist koaxial zum Wälzlager 28 angeordnet.A housing part 23 of the lifting gear 6 is provided as the suspension device 22 of the lifting device 1, which has a hanging part 24 projecting above the lifting device 1. 3 illustrates the suspension device 22 as an individual part. The suspension device 22 has, in the area of the housing part 23, the one-sided mounting of the drive roller 25 or drive nut of the guided round steel chain which is connected to the lifting gear 6, the drive roller 25 being firmly connected to the shaft 26 of the driven worm wheel 27 for this purpose. The housing part 23 thus forms part of the worm gear designed as a lifting gear 6 and is detachably connected to it (shown in the figures). Between the drive roller 25 and the worm wheel 27 there is a seal 35 fastened in the housing part 23 and acting on the shaft 26 between the housing parts 5, 23 of the lifting gear 6 to secure the lubricant for the worm gear. On the opposite side, the shaft 26 of the worm wheel 27 is mounted in the housing 5 of the lifting gear 6.
The housing part 23 is designed in the manner of a bearing shell for receiving a roller bearing 28 of the shaft 26, so that, as shown in FIG. 1, a compact design is achieved which has a large positive effect on the hoist 1.
The underside of the housing part 23 is formed with a slot-like recess 29, which is penetrated by a load carrier release tongue 30.
The suspension part 24 of the suspension device 22 has an eyelet-like opening, respectively. a suspension eye 31 which runs approximately parallel to the axis of the shaft 26 or the drive roller 25.
1 is located between a vertical plane lying in the axis of rotation of the worm shaft 7 and one which runs through the longitudinal central axis of the round steel chain designed as a load carrier 2, the eyelet section of the suspension device 22 preferably closer to the vertical plane of the load carrier 2 and on the other hand between a through the load string of the load carrier perpendicular to the axis of the worm shaft 7, respectively. Drive shaft 8 and a vertical extending through the center of gravity (S) of the hoist lying in the axis of the worm shaft 7 is arranged.
The housing part 23 surrounding the drive roller 25 through a bore has, in the upper radius, a radial guide groove 32 which extends over the load carrier 2 and into which the load carrier 2 is partially immersed.
This guide groove 32 forms the impetus for the steel formation of the suspension device. Concentric to the bore of the rolling bearing 28, the housing part 23 has a cylindrical attachment device 33, which is formed on the circumference by overlapping radial and face-end, also with different diameters, sealing sections 34 abutting the housing 5 (see FIG. 1). The cylindrical attachment device 33 is arranged coaxially with the roller bearing 28.

Claims (13)

  1. Manually or motor driven single or multi strand hoist (1) having a hoist drive (6) which has a suspension device (22) and in which a drive roller (25) is mounted that drives a load carrier to effect carrying and that is connected to a drive means (3), the hoist drive (6) being arranged between the drive means (3) and a clutch (9) which drivingly connects the drive means to the load carrier (2), characterised in that the suspension device (22) is formed by a housing part (23) that receives at one side the mounting of the drive roller (25) for the load carrier (2), being the drive roller (25) that is drivingly connected to the hoist drive (6), the housing part (23) being constructed as a releasably connected mechanism part of a housing part (5) that encloses the hoist drive (6).
  2. Hoist according to claim 1 having a hoist drive constructed as a worm drive, characterised in that the housing part (23) forms the mounting at one side for the worm wheel (27).
  3. Hoist according to claim 2, characterised in that the housing part (23) is constructed as a bearing shell to receive a roller bearing (28) and the latter is arranged so as to be separated from the worm drive (7, 27) by a shaft seal (35).
  4. Hoist according to claim 3, characterised in that the drive roller (25) for the load carrier (2) is arranged at the section of the shaft (26) of the worm wheel (27) being the section that is associated with the bearing shell.
  5. Hoist according to claim 4, characterised in that the housing part (23), at its underside, has a slot like clearance (29) for the passage of a load carrier separator tongue (30).
  6. Hoist according to one of claims 1 to 5, characterised in that the housing part (23) has a suspension eye (31) or the like which projects above the hoist drive (6).
  7. Hoist according to claim 6, characterised in that the opening of the suspension eye (31) is arranged about parallel to the axis of the drive roller (25) respectively the shaft (26) of the worm wheel (27).
  8. Hoist according to claims 6 and 7, characterised in that the suspension eye (31) is arranged, on the one hand, in the intermediate space formed by a vertical plane passing through the rotation axis of the worm shaft (7) of the hoist drive (6) and a parallel vertical plane passing through the load carrier (2), nearer to the vertical plane passing through the load carrier (2), and, on the other hand, between a vertical passing through the load strand of the load carrier (2) perpendicularly to the axis of the drive shaft (8) and a vertical passing through the centre of gravity (S) of the hoist (1) disposed on the axis of the drive shaft (8).
  9. Hoist according to claim 3, characterised in that the shaft seal (35) secured in the housing part (23) is arranged between the drive roller (25) and the worm wheel (27).
  10. Hoist according to claim 4, characterised in that a cylindrical bore of the housing part (23) which is provided for mounting the shaft (26) at one side, has a radial guide groove (32) arranged in its upper radius for the load carrier (2) constructed as a link chain or as a round steel chain.
  11. Hoist according to claim 10, characterised in that the housing part (23) respectively the suspension device (22) is made of steel.
  12. Hoist according to claim 1, characterised in that the housing part (23) has a cylindrically constructed extension device (33) whose periphery is made up of overlapping sealing sections (34) which are radial and at the end face planar and adjoin the housing (5).
  13. Hoist according to claim 12, characterised in that the cylindrical extension device (33) is arranged coaxially with respect to the mounting bore respectively to the roller bearing (28).
EP19950810353 1994-06-10 1995-05-30 Manually- or motor actuated hoist Expired - Lifetime EP0686596B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH1840/94 1994-06-10
CH184094 1994-06-10
CH184094A CH687873A5 (en) 1994-06-10 1994-06-10 Hand- or motor-driven hoist.

Publications (2)

Publication Number Publication Date
EP0686596A1 EP0686596A1 (en) 1995-12-13
EP0686596B1 true EP0686596B1 (en) 2000-08-09

Family

ID=4219835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950810353 Expired - Lifetime EP0686596B1 (en) 1994-06-10 1995-05-30 Manually- or motor actuated hoist

Country Status (3)

Country Link
EP (1) EP0686596B1 (en)
CH (1) CH687873A5 (en)
DE (1) DE59508619D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112249886A (en) * 2020-09-01 2021-01-22 广东韶钢松山股份有限公司 Transmission clamp mounting and dismounting device and using method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB902544A (en) * 1960-04-12 1962-08-01 Lifting Gear Products Engineer Improvements in electric chain hoists
GB1196792A (en) * 1967-03-13 1970-07-01 Lifting Gear Products Engineer An Improvement in or relating to Hand Chain Operated Pulley Blocks.
US3628115A (en) * 1969-06-02 1971-12-14 Uni Light Hoist And Reel Inc Variable-speed hoist control
GB2115367A (en) * 1982-11-04 1983-09-07 Libero Donati An improved electric chain block or hoist

Also Published As

Publication number Publication date
EP0686596A1 (en) 1995-12-13
CH687873A5 (en) 1997-03-14
DE59508619D1 (en) 2000-09-14

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