EP1505032B2 - Chain hoist - Google Patents

Chain hoist Download PDF

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Publication number
EP1505032B2
EP1505032B2 EP04016876A EP04016876A EP1505032B2 EP 1505032 B2 EP1505032 B2 EP 1505032B2 EP 04016876 A EP04016876 A EP 04016876A EP 04016876 A EP04016876 A EP 04016876A EP 1505032 B2 EP1505032 B2 EP 1505032B2
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EP
European Patent Office
Prior art keywords
chain
sprocket
hoist
guide
structural unit
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.)
Not-in-force
Application number
EP04016876A
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German (de)
French (fr)
Other versions
EP1505032A3 (en
EP1505032B1 (en
EP1505032A2 (en
Inventor
Oliver Moll
Jürgen Heun
Ralf Eising
Udo Gersemsky
Bernhard Norpoth
Thilo Walloschek
Erik Appel
Klaus Wissing
Torsten Sattler
Hansjürgen LINDE
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Demag Cranes and Components GmbH
Original Assignee
Demag Cranes and Components GmbH
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Application filed by Demag Cranes and Components GmbH filed Critical Demag Cranes and Components GmbH
Publication of EP1505032A2 publication Critical patent/EP1505032A2/en
Publication of EP1505032A3 publication Critical patent/EP1505032A3/en
Publication of EP1505032B1 publication Critical patent/EP1505032B1/en
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Publication of EP1505032B2 publication Critical patent/EP1505032B2/en
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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
    • B66D3/18—Power-operated hoists
    • 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

Definitions

  • the invention relates to a chain hoist with a sprocket for the positive transmission of the lifting force on the chain and arranged in the region of the sprocket chain guide for guiding the chain, in particular round link chain on the sprocket, the chain guide, the sprocket and the chain combined to form a unit are that the assembly is mounted in total at a mounting on the chain hoist and the assembly is solved in total during disassembly of the chain hoist.
  • chain hoists of the type described above are known. These chain hoists have a chain guide for trouble-free circulation of the chain around the sprocket, which ensures that the chain links do not get caught or jammed. To reduce the wear of the chain, it is lubricated over the entire length.
  • the chain, the chain guide and the sprocket are still subject to natural wear, which makes it necessary to replace the worn chain, the chain guide and the sprocket from time to time depending on the intensity of use of the chain hoist and depending on the size of the manipulated loads. Also can be disturbed by lengths of the chain links due to permanent material expansions over time of the positive circulation of the chain to the sprocket, so that the sprocket is more worn. As part of regular maintenance intervals, all wearing parts are therefore checked and, if necessary, replaced.
  • an electric chain hoist which consists essentially of a housed in a transmission housing gearbox, which is driven on the input side by an electric motor.
  • the transmission On the output side, the transmission has an output shaft on which a sprocket rotatably arranged for a round link chain rotation.
  • the sprocket is surrounded by a chain guide, which contains on both sides of the sprocket rectilinear chain guide tracks, between which an ejector is arranged.
  • the chain guide is designed as a housing and consists of two identical housing halves, which are assembled along a parting line. Furthermore, the housing halves are attached to an end wall of the transmission housing.
  • the housing halves are held together by two transverse screws, which are screwed from opposite sides in extensions. Accordingly, the housing halves are brought separately to the sprocket to the end wall and only then bolted there in this position.
  • the sprocket, the chain and the chain guide thus form a structural unit only in the operating state of the chain hoist.
  • the German utility model DE 92 02 881 U1 corresponds to the preamble of claim 1.
  • the present invention is based on the object to provide a chain hoist, which has an improved life of wearing parts, such as chain, sprocket and chain guide.
  • a chain hoist with a sprocket for the positive transmission of the lifting force on the chain and arranged in the range of the chain wheel chain guide for guiding the chain, in particular round link chain on the sprocket wherein the chain guide, the sprocket and chain combined to form a unit are that the assembly is mounted on a total of assembly on the chain hoist and the assembly is achieved in total disassembly of the chain hoist, improved life of wearing parts such as chain, sprocket and chain guide while simplified assembly and disassembly of these wearing parts achieved in that the chain guide floating on the sprocket and with the sprocket in it Engaged chain is stored.
  • Dismantling of individual parts of the chain set is eliminated as well as the removal of the complete pulley. Rather, the assembly is assembled and dismantled. A worn assembly is replaced only by a new prefabricated unit.
  • the inventive set formation and handling of the wear parts as a unit simplify the assembly and disassembly considerably and help to save costs, both during production and during maintenance and repair work.
  • the sprocket, the chain guide and the chain are coordinated so that they wear approximately evenly and thus are to be replaced at about the same time.
  • the screwing the chain guide with the housing of the chain hoist allows the floating attachment to the sprocket and the chain, a favorable orientation of the chain guide the sprocket and the chain, so that the wear behavior is favored. Obligations from the chain drive are no longer transmitted to the housing, but caught within the chain guide.
  • the chain guide in the direction of rotation of the sprocket seen against the chain hoist, in particular its gear housing, secured against rotation. As a result, the floating bearing of the chain guide is not repealed
  • the assembly is additionally supplemented by a Entflechterblech with holes for carrying out the Lastrums and the empty strand of the chain and end pieces at the ends of the chain.
  • at least one buffer and the chain can be added to the chain set in the region of the end piece and the hook harness, which are pushed onto the chain and attached thereto.
  • FIG. 1 is an interchangeable and referred to as chain set assembly 1 of the invention shown in a schematic overview simplified.
  • 2 with a chain guide for a chain 3 is referred to, with its housing 2a, the chain 3, a round link chain, surrounds and leads.
  • a sprocket is recognizable, which is arranged on an output shaft 16 of a transmission of the chain hoist and chain bags and grooves on the circumference of the sprocket 4, the lifting force of the chain hoist 7 transmits positively to the chain 2.
  • an end piece 5 is fixed, which in the chain memory 10, not shown here (see FIG. 2 ) enters.
  • the end piece 5 consists of two halves which engage around at least partially form-fitting several adjacent chain links and are detachably or permanently connected to each other. As attachment types caulking or riveting are used.
  • a hook harness 6 is arranged at the opposite end of the chain 3.
  • an unillustrated end piece 5 is fixed, which is positively enclosed by the halves of the hook harness 6.
  • the chain guide 2 consists of a longitudinally split housing 2a, which is made of plastic. The shell-shaped halves of the housing 2a are screwed together at 9. Before screwing the sprocket 4 and the chain 3 are inserted in one half of the housing 2a.
  • FIG. 1 It can be seen that a common in chain hoists Entflechterblech 20, with corresponding but not shown holes for the implementation of the load strand and the slack side of the chain 3 belongs to the unit 1.
  • This Entflechterblech 20 has the task to perform the Lasttrum and the backbone of the chain 3 at entry and exit in or from the sprocket 4 and to prevent entanglement of Lasttrum and Leertrum.
  • This debarker sheet 20 is screwed in the course of assembly of the unit 1 from below to the housing 22 of the transmission 12.
  • the chain hoist 7 represents a total. Visible this is suspended by means of the suspension 13 at a fixed point, not shown. With 11, a motor of the chain hoist 7 is designated at 12 whose transmission is indicated, the housing 22 can be seen.
  • the chain memory 10 is suspended below the chain hoist 7, in particular below the sprocket 4, for receiving the slack side of the chain 3. Laterally, the chain hoist 7, in particular the area of the chain set 1 and an adjacent installation space 21, is closed by a cover 14.
  • This cover 14 is detachably connected to the chain hoist 7 and can be removed for assembly or disassembly of the assembly.
  • the cover 14 is shown broken on its front to represent the mounting position of the interchangeable unit 1 can.
  • FIG. 3 shows an enlarged detail of FIG. 2 from the field of interchangeable assembly 1.
  • the assembly 1 consists essentially - as already to the FIG. 1 described - from the chain guide 2, the chain 3, the sprocket 4 - this can come the hook harness 5, the end pieces 6, the buffer 8 and the Entflechterblech 20.
  • the assembly 1, in particular its chain guide 2 and the sprocket 4 located therein and the associated portion of the chain 3 from the side into the open and adjacent to the drive shaft 16 mounting space 21 is inserted.
  • the housing 22 is slotted and thus open at the bottom, so that the load and the slack side and the Entflechterblech 20 can be moved into their installed position.
  • the sprocket 4 is pushed together with the chain guide 4 and the chain 3 on the shaft 16 of the transmission 12 and secured with a locking ring 18 on the shaft.
  • a arranged on the chain guide housing 2a pin 17 engages the housing of the chain hoist 7 and secures the assembly 1 against rotation on the shaft 16.
  • a ball bearing can be seen, with which the shaft 16 is mounted in the gear housing.
  • the front side of the shaft 16 is closed by a cover 19 which is latchingly inserted in an opening of the chain guide housing 2a.

Description

Die Erfindung betrifft einen Kettenzug mit einem Kettenrad zur formschlüssigen Übertragung der Hubkraft auf die Kette und einer im Bereich des Kettenrades angeordneten Kettenführung zur Führung der Kette, insbesondere Rundgliederkette, auf dem Kettenrad, wobei die Kettenführung, das Kettenrad und die Kette zu einer Baueinheit derart zusammengefasst sind, dass die Baueinheit insgesamt bei einer Montage am Kettenzug befestigt wird und die Baueinheit insgesamt bei einer Demontage vom Kettenzug gelöst wird.The invention relates to a chain hoist with a sprocket for the positive transmission of the lifting force on the chain and arranged in the region of the sprocket chain guide for guiding the chain, in particular round link chain on the sprocket, the chain guide, the sprocket and the chain combined to form a unit are that the assembly is mounted in total at a mounting on the chain hoist and the assembly is solved in total during disassembly of the chain hoist.

Aus dem deutschen Patent DE 198 49 693 sind beispielsweise Kettenzüge der eingangs beschriebenen Art bekannt. Diese Kettenzüge weisen zum störungsfreien Umlauf der Kette um das Kettenrad eine Kettenführung auf, die sicherstellt, dass sich die Kettenglieder nicht verhaken oder verklemmen. Um den Verschleiß der Kette zu mindern, wird diese über die gesamte Länge geschmiert.From the German Patent DE 198 49 693 For example, chain hoists of the type described above are known. These chain hoists have a chain guide for trouble-free circulation of the chain around the sprocket, which ensures that the chain links do not get caught or jammed. To reduce the wear of the chain, it is lubricated over the entire length.

Die Kette, die Kettenführung und auch das Kettenrad unterliegen dennoch einem natürlichen Verschleiß, der je nach der Nutzungsintensität des Kettenzuges und je nach der Größe der zu manipulierenden Lasten einen Austausch der verschlissenen Kette, der Kettenführung und auch des Kettenrades von Zeit zu Zeit erforderlich macht. Auch kann durch Längen der Kettenglieder aufgrund bleibender Werkstoffdehnungen mit der Zeit der formschlüssige Umlauf der Kette um das Kettenrad gestört werden, so dass das Kettenrad stärker verschlissen wird. Im Rahmen regelmäßiger Wartungsintervalle werden deshalb alle Verschleißteile überprüft und gegebenenfalls ausgetauscht. Bei den bekannten Kettenzügen bedeutet der Austausch, beispielsweise der Kette und des Kettenrades einen erheblichen Aufwand, der darin besteht, dass nach Abnehmen des Kettenzuges von seiner Aufhängung, der Motor und weitere Kleinteile zu demontieren sind, um an die Verschleißteile zu gelangen. Diese Arbeiten sind sehr zeitintensiv und aufwendig. Die Verfügbarkeit des Kettenzugs wird dadurch beeinträchtigt. Die Wartungskosten sind aufgrund der erforderlichen Arbeitszeit hoch. Gleichermaßen aufwendig ist die Montage des Kettenzuges bei dessen Fertigung im Werk; demgemäß sind die Fertigungskosten beachtlich hoch.The chain, the chain guide and the sprocket are still subject to natural wear, which makes it necessary to replace the worn chain, the chain guide and the sprocket from time to time depending on the intensity of use of the chain hoist and depending on the size of the manipulated loads. Also can be disturbed by lengths of the chain links due to permanent material expansions over time of the positive circulation of the chain to the sprocket, so that the sprocket is more worn. As part of regular maintenance intervals, all wearing parts are therefore checked and, if necessary, replaced. In the known chain hoists the replacement, for example, the chain and the sprocket means a considerable effort, which is that after removing the chain hoist from its suspension, the engine and other small parts are to be dismantled to get to the wear parts. These works are very time consuming and expensive. The availability of the chain hoist is affected. The maintenance costs are high due to the required working hours. Equally expensive is the assembly of the chain hoist during its manufacture in the factory; Accordingly, the production costs are considerably high.

Aus der deutschen Offenlegungsschrift DE 37 10 331 A1 ist bereits ein Elektrokettenzug bekannt, der im Wesentlichen aus einem in einem Getriebegehäuse untergebrachten Getriebe besteht, das eingangsseitig von einem Elektromotor angetrieben wird. Ausgangsseitig weist das Getriebe eine Ausgangswelle auf, auf der drehfest ein Kettenrad für eine Rundgliederkette drehfest angeordnet ist. Das Kettenrad ist von einer Kettenführung umgeben, die beidseitig des Kettenrades geradlinig verlaufende Kettenführungsbahnen enthält, zwischen denen ein Auswerfer angeordnet ist. Die Kettenführung ist als Gehäuse ausgebildet und besteht aus zwei exakt gleichen Gehäusehälften, die längs einer Trennfuge zusammengesetzt sind. Des Weiteren sind die Gehäusehälften an einer Stirnwand des Getriebegehäuses befestigt. Um eine Montage des Gehäuses an der Stirnwand zu erleichtern, sind die Gehäusehälften von zwei Querschrauben zusammengehalten, die von entgegen gesetzten Seiten in Fortsätze eingedreht sind. Entsprechend werden die Gehäusehälften getrennt um das Kettenrad an die Stirnwand herangebracht und erst anschließend dort in dieser Position verschraubt. Das Kettenrad, die Kette und die Kettenführung bilden somit nur im Betriebszustand des Kettenzuges eine Baueinheit aus. Das deutsche Gebrauchsmuster DE 92 02 881 U1 entspricht dem Oberbegriff des Anspruchs 1.From the German Offenlegungsschrift DE 37 10 331 A1 an electric chain hoist is already known, which consists essentially of a housed in a transmission housing gearbox, which is driven on the input side by an electric motor. On the output side, the transmission has an output shaft on which a sprocket rotatably arranged for a round link chain rotation. The sprocket is surrounded by a chain guide, which contains on both sides of the sprocket rectilinear chain guide tracks, between which an ejector is arranged. The chain guide is designed as a housing and consists of two identical housing halves, which are assembled along a parting line. Furthermore, the housing halves are attached to an end wall of the transmission housing. To facilitate mounting of the housing to the end wall, the housing halves are held together by two transverse screws, which are screwed from opposite sides in extensions. Accordingly, the housing halves are brought separately to the sprocket to the end wall and only then bolted there in this position. The sprocket, the chain and the chain guide thus form a structural unit only in the operating state of the chain hoist. The German utility model DE 92 02 881 U1 corresponds to the preamble of claim 1.

Der vorliegenden Erfindung liegt die Aufgabe zu Grunde, einen Kettenzug zu schaffen, der eine verbesserte Standzeit von Verschleißteilen, wie Kette, Kettenrad und Kettenführung aufweist.The present invention is based on the object to provide a chain hoist, which has an improved life of wearing parts, such as chain, sprocket and chain guide.

Diese Aufgabe wird mit einem Kettenzug nach den Merkmalen des Anspruches der vorliegenden Erfindung gelöst. In der Unteransprüchen 2 bis 4 sind vorteilhafte Ausgestaltungen der Erfindung angegeben.This object is achieved with a chain hoist according to the features of the claim of the present invention. In the dependent claims 2 to 4 advantageous embodiments of the invention are given.

Erfindungsgemäß wird bei einem Kettenzug mit einem Kettenrad zur formschlüssigen Übertragung der Hubkraft auf die Kette und einer im Bereich des Kettenrades angeordneten Kettenführung zur Führung der Kette, insbesondere Rundgliederkette, auf dem Kettenrad, wobei die Kettenführung, das Kettenrad und die Kette zu einer Baueinheit derart zusammengefasst sind, dass die Baueinheit insgesamt bei einer Montage am Kettenzug befestigt wird und die Baueinheit insgesamt bei einer Demontage vom Kettenzug gelöst wird, eine verbesserte Standzeit von Verschleißteilen wie Kette, Kettenrad und Kettenführung bei gleichzeitig vereinfachter Montage und Demontage dieser Verschleißteile dadurch erreicht, dass die Kettenführung schwimmend auf dem Kettenrad und der mit dem Kettenrad im Eingriff befindlichen Kette gelagert ist. Eine Demontage von Einzelteilen des Kettensets entfällt ebenso, wie das Abnehmen des kompletten Flaschenzuges. Vielmehr wird die Baueinheit insgesamt montiert und demontiert. Eine verschlissene Baueinheit wird nur durch eine neue vorgefertigte Baueinheit ausgetauscht. Die erfindungsgemäße Setbildung und Handhabung der Verschleißteile als Baueinheit vereinfachen die Montage und Demontage erheblich und helfen Kosten, sowohl bei der Fertigung als auch bei Wartungs- und Reparaturarbeiten zu sparen. Auch sind das Kettenrad, die Kettenführung und die Kette so aufeinander abgestimmt, dass diese etwa gleichmäßig verschleißen und somit etwa zum gleichen Zeitpunkt auszutauschen sind. In Abkehr von der üblichen Verschraubung der Kettenführung mit dem Gehäuse des Kettenzuges gestattet die schwimmende Befestigung auf dem Kettenrad und der Kette, eine günstige Ausrichtung der Kettenführung dem Kettenrad und der Kette, so dass das Verschleißverhalten begünstigt wird. Zwänge aus dem Kettentrieb werden nicht mehr an das Gehäuse übertragen, sondern innerhalb der Kettenführung aufgefangen.According to the invention in a chain hoist with a sprocket for the positive transmission of the lifting force on the chain and arranged in the range of the chain wheel chain guide for guiding the chain, in particular round link chain on the sprocket, wherein the chain guide, the sprocket and chain combined to form a unit are that the assembly is mounted on a total of assembly on the chain hoist and the assembly is achieved in total disassembly of the chain hoist, improved life of wearing parts such as chain, sprocket and chain guide while simplified assembly and disassembly of these wearing parts achieved in that the chain guide floating on the sprocket and with the sprocket in it Engaged chain is stored. Dismantling of individual parts of the chain set is eliminated as well as the removal of the complete pulley. Rather, the assembly is assembled and dismantled. A worn assembly is replaced only by a new prefabricated unit. The inventive set formation and handling of the wear parts as a unit simplify the assembly and disassembly considerably and help to save costs, both during production and during maintenance and repair work. Also, the sprocket, the chain guide and the chain are coordinated so that they wear approximately evenly and thus are to be replaced at about the same time. In contrast to the usual screwing the chain guide with the housing of the chain hoist allows the floating attachment to the sprocket and the chain, a favorable orientation of the chain guide the sprocket and the chain, so that the wear behavior is favored. Obligations from the chain drive are no longer transmitted to the housing, but caught within the chain guide.

In weiterer Ausgestaltung ist die Kettenführung in Umlaufrichtung des Kettenrades gesehen gegenüber dem Kettenzug, insbesondere dessen Getriebegehäuse, verdrehgesichert. Hierdurch wird die schwimmende Lagerung der Kettenführung an sich nicht aufgehobenIn a further embodiment, the chain guide in the direction of rotation of the sprocket seen against the chain hoist, in particular its gear housing, secured against rotation. As a result, the floating bearing of the chain guide is not repealed

In vorteilhafter Ausgestaltung ist die die Baueinheit zusätzlich um ein Entflechterblech mit Bohrungen zur Durchführung des Lastrums und des Leertrums der Kette und Endstücken an den Enden der Kette ergänzt. Als weitere Bauteile können dem Kettenset im Bereich des Endstücks und des Hakengeschirrs jeweils mindestens ein Puffer und die Kette zugefügt werden, die auf die Kette aufgeschoben und daran befestigt werden.In an advantageous embodiment, the assembly is additionally supplemented by a Entflechterblech with holes for carrying out the Lastrums and the empty strand of the chain and end pieces at the ends of the chain. As further components, at least one buffer and the chain can be added to the chain set in the region of the end piece and the hook harness, which are pushed onto the chain and attached thereto.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend beschrieben.An embodiment of the invention is illustrated in the drawing and will be described below.

Es zeigen:

Figur 1
die zur Erfindung gehörende auswechselbare Baueinheit (Kettenset) in der Zusammenstellung,
Figur 2
den teilweise aufgebrochenen Kettenzug der Erfindung mit der auswechselbaren Baueinheit und
Figur 3
eine vergrößerte Darstellung der erfindungsgemäßen auswechselbaren Baueinheit.
Show it:
FIG. 1
the interchangeable assembly (chain set) belonging to the invention in the compilation,
FIG. 2
the partially broken chain of the invention with the interchangeable unit and
FIG. 3
an enlarged view of the interchangeable assembly according to the invention.

In Figur 1 ist eine auswechselbare und als Kettenset bezeichnete Baueinheit 1 der Erfindung in einer schematischen Übersicht vereinfacht dargestellt. Mit 2 ist eine Kettenführung für eine Kette 3 bezeichnet, die mit ihrem Gehäuse 2a die Kette 3, eine Rundgliederkette, umgreift und führt. Bei 4 ist ein Kettenrad erkennbar, das auf einer Ausgangswelle 16 eines Getriebes des Kettenzuges angeordnet ist und über Kettentaschen und Nuten am Umfang des Kettenrades 4 die Hubkraft des Kettenzuges 7 formschlüssig auf die Kette 2 überträgt. Am in der Zeichnung rechten Ende der Kette 3 ist ein Endstück 5 befestigt, das in den hier nicht dargestellten Kettenspeicher 10 (siehe Figur 2) einläuft. Das Endstück 5 besteht aus zwei Hälften, die zumindest teilweise formschlüssig mehrere benachbarte Kettenglieder umgreifen und lösbar oder dauerhaft miteinander verbunden sind. Als Befestigungsarten kommen Verstemmen oder Vernieten zum Einsatz. Am entgegen gesetzten Ende der Kette 3 ist ein Hakengeschirr 6 angeordnet. Auch an diesem Ende der Kette 3 ist ein nicht dargestelltes Endstück 5 befestigt, das von den Hälften des Hakengeschirrs 6 formschlüssig umschlossen wird. Im Bereich des Hakengeschirrs 6 und des Endstücks 5 beziehungsweise der beiden Endstücke 5 sind auf der der Kettenführung 2 zugewandten Seite sind jeweils auf der Kette 3 Puffer 8 angeordnet. Die Kettenführung 2 besteht aus einem längsgeteilten Gehäuse 2a, das aus Kunststoff hergestellt ist. Die schalenförmigen Hälften des Gehäuses 2a sind bei 9 zusammengeschraubt. Vor dem Zusammenschrauben werden in eine Hälfte des Gehäuses 2a das Kettenrad 4 und die Kette 3 eingelegt.In FIG. 1 is an interchangeable and referred to as chain set assembly 1 of the invention shown in a schematic overview simplified. 2 with a chain guide for a chain 3 is referred to, with its housing 2a, the chain 3, a round link chain, surrounds and leads. At 4, a sprocket is recognizable, which is arranged on an output shaft 16 of a transmission of the chain hoist and chain bags and grooves on the circumference of the sprocket 4, the lifting force of the chain hoist 7 transmits positively to the chain 2. At the right in the drawing end of the chain 3, an end piece 5 is fixed, which in the chain memory 10, not shown here (see FIG. 2 ) enters. The end piece 5 consists of two halves which engage around at least partially form-fitting several adjacent chain links and are detachably or permanently connected to each other. As attachment types caulking or riveting are used. At the opposite end of the chain 3, a hook harness 6 is arranged. Also at this end of the chain 3, an unillustrated end piece 5 is fixed, which is positively enclosed by the halves of the hook harness 6. In the region of the hook harness 6 and the end piece 5 and the two end pieces 5 are on the chain guide 2 side facing each buffer 3 8 are arranged. The chain guide 2 consists of a longitudinally split housing 2a, which is made of plastic. The shell-shaped halves of the housing 2a are screwed together at 9. Before screwing the sprocket 4 and the chain 3 are inserted in one half of the housing 2a.

Außerdem ist der Figur 1 zu entnehmen, dass ein bei Kettenzügen übliches Entflechterblech 20, mit entsprechenden aber nicht dargestellten Bohrungen für die Durchführung des Lasttrums und des Leertrums der Kette 3 zu der Baueinheit 1 gehört. Dieses Entflechterblech 20 hat die Aufgabe das Lasttrum und das Leertrum der Kette 3 bei Ein- und Auslauf in beziehungsweise von dem Kettenrad 4 zu führen und ein Verfangen von Lasttrum und Leertrum zu verhindern. Dieses Entflechterblech 20 wird im Zuge der Montage der Baueinheit 1 von unten an das Gehäuse 22 des Getriebes 12 angeschraubt.In addition, the FIG. 1 It can be seen that a common in chain hoists Entflechterblech 20, with corresponding but not shown holes for the implementation of the load strand and the slack side of the chain 3 belongs to the unit 1. This Entflechterblech 20 has the task to perform the Lasttrum and the backbone of the chain 3 at entry and exit in or from the sprocket 4 and to prevent entanglement of Lasttrum and Leertrum. This debarker sheet 20 is screwed in the course of assembly of the unit 1 from below to the housing 22 of the transmission 12.

In Figur 2 ist der Kettenzug 7 insgesamt darstellt. Erkennbar ist dieser mittels der Aufhängung 13 an einem nicht dargestellten Festpunkt aufgehängt. Mit 11 ist ein Motor des Kettenzuges 7 bezeichnet, bei 12 ist dessen Getriebe angedeutet, dessen Gehäuse 22 erkennbar ist. Der Kettenspeicher 10 ist unterhalb des Kettenzuges 7, insbesondere unterhalb des Kettenrades 4, zur Aufnahme des Leertrums der Kette 3 aufgehängt. Seitlich ist der Kettenzug 7, insbesondere der Bereich des Kettensets 1 und eines hieran angrenzenden Einbauraums 21, mit einer Abdeckung 14 verschlossen. Diese Abdeckung 14 ist lösbar mit dem Kettenzug 7 verbunden und kann für die Montage oder Demontage der Baueinheit abgenommen werden. Die Abdeckung 14 ist auf seiner Vorderseite aufgebrochen dargestellt, um die Einbaulage der auswechselbaren Baueinheit 1 darstellen zu können.In FIG. 2 is the chain hoist 7 represents a total. Visible this is suspended by means of the suspension 13 at a fixed point, not shown. With 11, a motor of the chain hoist 7 is designated at 12 whose transmission is indicated, the housing 22 can be seen. The chain memory 10 is suspended below the chain hoist 7, in particular below the sprocket 4, for receiving the slack side of the chain 3. Laterally, the chain hoist 7, in particular the area of the chain set 1 and an adjacent installation space 21, is closed by a cover 14. This cover 14 is detachably connected to the chain hoist 7 and can be removed for assembly or disassembly of the assembly. The cover 14 is shown broken on its front to represent the mounting position of the interchangeable unit 1 can.

Die Figur 3 zeigt eine Ausschnittsvergrößerung von Figur 2 aus dem Bereich der auswechselbaren Baueinheit 1. Die Baueinheit 1 besteht im Wesentlichen - wie bereits zu der Figur 1 beschrieben - aus der Kettenführung 2, der Kette 3, dem Kettenrad 4 - hierzu können das Hakengeschirr 5, die Endstücke 6, die Puffer 8 und das Entflechterblech 20 kommen. Für die Montage wird die Baueinheit 1, insbesondere dessen Kettenführung 2 und das darin befindliche Kettenrad 4 und der zugehörige Abschnitt der Kette 3 von der Seite in den offen und an die Antriebswelle 16 angrenzenden Einbauraum 21 eingeschoben. Im Bereich des Einbauraums 21 ist das Gehäuse 22 geschlitzt und somit nach unten offen, so dass auch das Lastrum und das Leertrum sowie das Entflechterblech 20 in ihre Einbaulage bewegt werden können. Anschließend wird das Kettenrad 4 zusammen mit der Kettenführung 4 und der Kette 3 auf die Welle 16 des Getriebes 12 geschoben und mit einem Sicherungsring 18 auf der Welle gesichert. Ein an dem Kettenführungsgehäuse 2a angeordneter Zapfen 17 greift in das Gehäuse des Kettenzuges 7 ein und sichert die Baueinheit 1 gegen Verdrehung auf der Welle 16. Bei 15 ist ein Kugellager erkennbar, mit dem die Welle 16 im Getriebegehäuse gelagert ist. Die Stirnseite der Welle 16 ist durch einen Deckel 19 verschlossen, der rastend in einer Öffnung des Kettenführungsgehäuses 2a eingesteckt ist.The FIG. 3 shows an enlarged detail of FIG. 2 from the field of interchangeable assembly 1. The assembly 1 consists essentially - as already to the FIG. 1 described - from the chain guide 2, the chain 3, the sprocket 4 - this can come the hook harness 5, the end pieces 6, the buffer 8 and the Entflechterblech 20. For assembly, the assembly 1, in particular its chain guide 2 and the sprocket 4 located therein and the associated portion of the chain 3 from the side into the open and adjacent to the drive shaft 16 mounting space 21 is inserted. In the region of the installation space 21, the housing 22 is slotted and thus open at the bottom, so that the load and the slack side and the Entflechterblech 20 can be moved into their installed position. Subsequently, the sprocket 4 is pushed together with the chain guide 4 and the chain 3 on the shaft 16 of the transmission 12 and secured with a locking ring 18 on the shaft. A arranged on the chain guide housing 2a pin 17 engages the housing of the chain hoist 7 and secures the assembly 1 against rotation on the shaft 16. At 15, a ball bearing can be seen, with which the shaft 16 is mounted in the gear housing. The front side of the shaft 16 is closed by a cover 19 which is latchingly inserted in an opening of the chain guide housing 2a.

Zum Auswechseln der Kette 3 oder des Kettenrades 4 beziehungsweise eines anderen Verschleißteiles wird nicht mehr das Gehäuse 2a der Kettenführung 2 geöffnet und demontiert, sondern die gesamte Baueinheit 1, bestehend aus Kettenführung 2, der Kette 3, dem Kettenrad 4, dem Hakengeschirr 5 und dem Endstück 6, den Puffern 8 und dem Entflechterblech 20, wird nach Öffnen des Deckels 19, Lösen des Entflechterblechs 20 und Lösen des Sicherungsringes 18 von der Welle 16 abgezogen und gegen eine andere Baueinheit 1 ausgetauscht, die in umgekehrter Reihenfolge auf die Welle 16 aufgeschoben und dort mit dem Sicherungsring 18 fixiert wird.To replace the chain 3 or the sprocket 4 or a other wear part is no longer opened and dismantled the housing 2a of the chain guide 2, but the entire assembly 1, consisting of chain guide 2, the chain 3, the sprocket 4, the hook harness 5 and the tail 6, the buffers 8 and the Entflechterblech 20, is withdrawn after opening the lid 19, releasing the Entflechterblechs 20 and releasing the locking ring 18 of the shaft 16 and replaced with another unit 1, which is pushed in the reverse order on the shaft 16 and fixed there with the retaining ring 18.

Claims (4)

  1. Chain hoist having a chain sprocket (4) for transmitting the lifting force to the chain (3) by positive interengagement and having a chain guide (2), arranged in the region of the chain sprocket (4), for guiding the chain (3), and in particular a round-link chain, on the chain sprocket (3), the chain guide (2), the chain sprocket (4) and the chain (3) being combined into a structural unit (1) in such a way that the structural unit (1) is fastened as a whole to the chain hoist (7) at the time of a fitting operation and the structural unit (1) is released as a whole from the chain hoist at the time of a removal operation, characterised in that the chain guide (2) is mounted to float on the chain sprocket (4) and on the chain (3) which is in engagement with the chain socket (4).
  2. Chain hoist according to claim 1, characterised in that, looking in the direction of rotation of the chain sprocket (4), the chain guide (2) is secured against turning relative to the chain hoist (7), and in particular relative to the gearbox housing (22) thereof, by means of a spigot (17).
  3. Chain hoist according to claim 1 or 2, characterised in that the structural unit (1) has, in addition, an untwisting plate (20) having holes for the load-carrying run and non-load-carrying run of the chain (3) to pass through, and an end-piece (5) arranged at one end of the chain (3) and a hook assembly (6) arranged at the other end of the chain (3).
  4. Chain hoist according to claim 3, characterised in that at least one buffer (8) is slid onto the chain (3) in the region of each of the end-piece (5) and the hook assembly (6) and is fastened thereto, and the buffers (8) are also parts of the structural unit (1).
EP04016876A 2003-08-01 2004-07-16 Chain hoist Not-in-force EP1505032B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10335984 2003-08-01
DE10335984A DE10335984B4 (en) 2003-08-01 2003-08-01 chain

Publications (4)

Publication Number Publication Date
EP1505032A2 EP1505032A2 (en) 2005-02-09
EP1505032A3 EP1505032A3 (en) 2006-05-17
EP1505032B1 EP1505032B1 (en) 2008-05-21
EP1505032B2 true EP1505032B2 (en) 2011-05-04

Family

ID=33547107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04016876A Not-in-force EP1505032B2 (en) 2003-08-01 2004-07-16 Chain hoist

Country Status (4)

Country Link
US (1) US20050043132A1 (en)
EP (1) EP1505032B2 (en)
CN (1) CN1579921A (en)
DE (2) DE10335984B4 (en)

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Publication number Priority date Publication date Assignee Title
CA2603178A1 (en) 2005-12-08 2007-06-14 Canimex Inc. Chain guide and drive mechanism including the same
DE102010047704A1 (en) 2010-10-06 2012-04-12 Demag Cranes & Components Gmbh Hoist with a toothed belt as a suspension element
DE102015102140A1 (en) 2015-02-13 2016-08-18 Terex MHPS IP Management GmbH Arrangement of an electric drive motor, a transmission and a rotary encoder, in particular for a cable pull
CN104709494B (en) * 2015-03-18 2017-02-01 浙江双友物流器械股份有限公司 Chain type tensioner
US11548769B2 (en) 2018-07-30 2023-01-10 Toyota Motor Engineering & Manufacturing North America, Inc. Chain link adapter

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US3596879A (en) † 1968-10-22 1971-08-03 Aluminum Products Inc Chain hoist
DE9202881U1 (en) † 1992-03-05 1992-07-09 Yale Industrial Products Gmbh, 5620 Velbert, De
DE10019044A1 (en) † 2000-04-18 2001-11-08 Kasimir Sowka Chain hoist guide has chain-holder, sprocket wheel, shaft, run-in plate, and opening

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Publication number Priority date Publication date Assignee Title
US1670734A (en) * 1924-10-01 1928-05-22 Manning Maxwell & Moore Inc Electric hoist
JPS5227808Y2 (en) * 1973-05-14 1977-06-24
GB8516149D0 (en) * 1985-06-26 1985-07-31 Hogg J P C Lifting tackle
DE3710332C1 (en) * 1987-03-28 1988-07-21 Stahl R Foerdertech Gmbh Electric train
DE3710331A1 (en) * 1987-03-28 1988-10-13 Stahl R Foerdertech Gmbh Electric chain pulley block
JPH0776078B2 (en) * 1991-10-31 1995-08-16 象印チエンブロック株式会社 Lever type traction machine
US5318483A (en) * 1993-05-14 1994-06-07 American Longwall Face Conveyors, Inc. Sprocket with asymmetrical teeth for mining conveyors
DE19530891C2 (en) * 1995-08-14 1999-11-18 Mannesmann Ag Hoist that is operated with a traction device
DE19849693C2 (en) * 1998-10-28 2001-02-22 Stahl R Foerdertech Gmbh Chain hoist with suspension on the chain sprocket housing
DE19849995A1 (en) * 1998-10-30 2000-05-11 Stahl R Foerdertech Gmbh Hoist for monorail suspension trolleys with a low overall height

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596879A (en) † 1968-10-22 1971-08-03 Aluminum Products Inc Chain hoist
DE9202881U1 (en) † 1992-03-05 1992-07-09 Yale Industrial Products Gmbh, 5620 Velbert, De
DE10019044A1 (en) † 2000-04-18 2001-11-08 Kasimir Sowka Chain hoist guide has chain-holder, sprocket wheel, shaft, run-in plate, and opening

Also Published As

Publication number Publication date
EP1505032A3 (en) 2006-05-17
EP1505032B1 (en) 2008-05-21
DE502004007204D1 (en) 2008-07-03
DE10335984B4 (en) 2005-09-22
CN1579921A (en) 2005-02-16
DE10335984A1 (en) 2005-03-10
US20050043132A1 (en) 2005-02-24
EP1505032A2 (en) 2005-02-09

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