EP1892169B1 - Undercarriage, in particular one-rail under-flange carriage, for hoisting equipment - Google Patents

Undercarriage, in particular one-rail under-flange carriage, for hoisting equipment Download PDF

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Publication number
EP1892169B1
EP1892169B1 EP07114537A EP07114537A EP1892169B1 EP 1892169 B1 EP1892169 B1 EP 1892169B1 EP 07114537 A EP07114537 A EP 07114537A EP 07114537 A EP07114537 A EP 07114537A EP 1892169 B1 EP1892169 B1 EP 1892169B1
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EP
European Patent Office
Prior art keywords
wheels
shafts
electric motor
plate
trolley
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.)
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Application number
EP07114537A
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German (de)
French (fr)
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EP1892169A3 (en
EP1892169A2 (en
Inventor
Oliver Moll
Klaus Klemens Nerger
Udo Gersemsky
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Demag Cranes and Components GmbH
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Demag Cranes and Components GmbH
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Publication of EP1892169A2 publication Critical patent/EP1892169A2/en
Publication of EP1892169A3 publication Critical patent/EP1892169A3/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61BRAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B13/00Other railway systems
    • B61B13/04Monorail systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61CLOCOMOTIVES; MOTOR RAILCARS
    • B61C13/00Locomotives or motor railcars characterised by their application to special systems or purposes
    • B61C13/04Locomotives or motor railcars characterised by their application to special systems or purposes for elevated railways with rigid rails
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C9/00Travelling gear incorporated in or fitted to trolleys or cranes
    • B66C9/02Travelling gear incorporated in or fitted to trolleys or cranes for underhung trolleys or cranes

Definitions

  • the invention relates to a Einschienenunterflansch suspension for hoists with multiple wheels, which run on a rail, of which at least two seen in the direction of travel of the chassis are arranged behind one another via a common electric motor driven.
  • the chassis consists essentially of a U-shaped frame and four wheels, which are movable on the lower flange of an I-shaped rail.
  • the wheels each have a flange, with which the wheels are guided on the outside of the lower flange.
  • the four wheels Seen in the longitudinal direction of the rail, the four wheels are divided in the manner of a four-wheel vehicle in a right pair and a left pair. Within the pairs, the two left and two right wheels are arranged at a distance and behind each other. In addition, one of the two pairs is driven by an electric motor.
  • the driven pair of wheels each have a revolving sprocket, which is arranged in the region of the outer circumference of the wheel flanges of the wheels.
  • the sprockets of the two driven wheels are drivingly connected to each other via an arranged between the driven wheels gear.
  • This gear meshes with the two sprockets of the driven wheels and is mounted on an output shaft of a transmission that is seen in the longitudinal direction of the rail and thus seen in the direction of travel of the chassis laterally attached to the frame.
  • the frame is thus between gear and gear.
  • the electric motor is flanged to the transmission.
  • the frame with the wheels surrounds the rail from below u-shaped and has a bolt-shaped cross-beam on which the chain hoist is suspended centrally.
  • the width of the frame can be changed so that the chassis can be adjusted to the width of different I-shaped rails.
  • the invention is based on the object to provide a chassis, especially Einschienenunterflansch suspension for hoists, which is wear and low noise even in dirty environment.
  • the wheels Due to the direct drive of the wheels via shafts, the wheels can be formed without a revolving sprocket.
  • the wheels with the sprockets of the ring gear in the Abroll Scheme of the wheels resulting in dirt due to contamination to higher wear and higher noise, especially at high speeds leads.
  • the diameter of the wheels is reduced compared to wheels with sprockets, so that the wheelbase within the chassis can be chosen shorter and thus the cornering of the chassis is favored. Also, a double-wheel drive can be realized.
  • a separation of the wheels from the gears is achieved in that the waves are mounted on a side plate of the chassis. This also facilitates lubrication of the gears without adversely affecting the transmission of the driving forces of the wheels to the rail by lubricant.
  • one of the waves is extended beyond the gear out and is drivingly connected via a gear to the electric motor, wherein the intermediate gear takes over the power transmission to the second shaft.
  • the intermediate gear is mounted on an intermediate shaft, which is drivingly connected to the electric motor.
  • a translation is also provided in the form of a mounted on the intermediate shaft gear ratio, which meshes with a drivingly connected to the electric motor drive gear.
  • the electric motor is mounted on the housing part. Another training provides that the electric motor over a Transmission acts on the waves.
  • the landing gear consist essentially of a U-shaped frame with two driven wheels and two non-driven wheels, the frame has a right side shield and an opposite left side shield, which has a cross-beam to the U-shaped frame are mounted together on the respective inner sides of the side plates and roll on the lower flange of the rail.
  • the wheels can be performed without flanges and the wheelbase be chosen smaller.
  • FIG. 1 shows a sectional view of a chassis 1 for a chain hoist, not shown, or a head support of a crane.
  • the chassis 1 consists essentially of a frame 2 and four wheels 3, of which a right wheel 3r and a left wheel 31 are visible.
  • the frame 2 is designed substantially U-shaped and engages from below an I-shaped rail 4 in the region of the lower flange 4u and adjacent web 4s.
  • the frame 2 consists of a left side plate 51 and a right Side plate 5r, on which the wheels 3r and 31 are mounted and which are connected to each other via a cross-beam 6.
  • the side plates 5l and 5r central and below in each case a bore 7, through which the bolt-shaped cross-beam 6 is performed.
  • the transverse traverse 7 thus connects the two side plates 5l and 5r to the frame 2.
  • the cross-beam 6 is fixed in the longitudinal direction by rings 8, which rest against the respective sides of the side plates 51 and 5r.
  • the side plates 51 and 5r can be adjusted to the width of the lower flange 4u of the rail 4 via the cross-beam 6 with the rings 8.
  • the wheels 3 run on the top of the lower flange 4u of the I-shaped rail 4 from.
  • the wheels 3 have no flanges, since the frame 2 are guided over guide rollers 9 on the lateral longitudinal sides of the lower flange 4u.
  • the guide rollers 9 are for this purpose rotatably mounted about vertical axes on the side plates 5l and 5r. The vertical axes are then vertically aligned when the rail 4 is horizontal.
  • FIG. 1 can be seen that only the left wheels 3l are driven by a flanged to the left side plate 5l via a gear 23 electric motor 10.
  • FIG. 2 is a sectional view from above of the chassis 1 after FIG. 1 shown in a first embodiment.
  • the left wheels 3l and the right wheels 3r are rotatably mounted one behind the other and at a distance from each other on the respective side plate 5l and 5r.
  • the left side shield 51 and the right side shield 5r each have two hubs 11 which extend starting from the rail 4 facing inside 5i to the rail 4 and to the opposite right side shield 5r.
  • On the outer circumference of the hubs 11 each have a bearing 12, preferably ball bearings, pushed, each carrying one of the wheels 3.
  • the hubs 11 on the right side shield 5r are formed as full hubs, whereas the hubs 11 on the left side shield 5l are hollow hubs.
  • central bores 13 are provided in the left wheels 3 l, into which shafts 14 a and 14 b are inserted.
  • the shafts 14a and 14b may be held in a form-fitting manner via multi-tooth connections or press-fit connections in the bores 13.
  • the bores 13 may also be provided in the right wheels 3r, but have no function there.
  • the shafts 14a and 14b are mounted via a further bearing 15 in a housing part 20.
  • the housing part 20 is flat against the left side shield 51 and is screwed thereto.
  • a gear 16a and 16b are respectively arranged on the shafts 14a and 14b via conventional shaft and hub connection types.
  • the outer diameter of the gears 16a and 16b is the same.
  • an intermediate gear 17 is arranged, which meshes with the gears 16a and 16b.
  • the intermediate gear 17 is supported on an intermediate shaft 18 which is arranged in parallel and in line with the shafts 14a and 14b.
  • the intermediate shaft 18 is mounted at both ends in each case in a bearing 19, preferably a ball bearing.
  • the bearings 19 are mounted in the walls of the housing part 20.
  • This housing part 20 receives the gears 16a and 16b, the shafts 14a and 14b, the intermediate gear 17 and the intermediate shaft 18.
  • the gear formed by the gears 16a and 16b and the intermediate gear 17 is thus completed and can thus be provided with an oil or grease filling.
  • the housing part 20 is formed here closed in itself and can thus be grown as a modular component to the left side plate 5l.
  • the housing part 20 could also be lid-like and the left side plate 51 cup-shaped. This could be the other way around.
  • first shaft 14a is extended from the left wheel 3l beyond the gear 16a and protrudes out of the housing part 20.
  • the housing part 20 has a corresponding bore 24.
  • the protruding end of the shaft 14 a is connected to the gear 23 with the electric motor 10, which is fixed to the outside of the housing part.
  • the first shaft 14a in this embodiment is the Output shaft of the transmission 23rd
  • the guide rollers 9 are shown, which are mounted on the left side plate 5l and on the right side plate 5r and seen in the longitudinal direction L of the rail 4 are arranged in front of the front and behind the rear of the left wheels 31 and the right wheels 3l.
  • FIG. 3 is a sectional view of the left side plate 5l after FIG. 1 shown in a second embodiment.
  • the second embodiment is substantially identical to the first embodiment, so that reference is made to the description there. Only the differences are described below.
  • the electric motor 10 is not directly connected to the first shaft 14a, but has on the output side a drive gear 21 which meshes with a transmission gear 22 fixed on the intermediate shaft 18.
  • the first shaft 14a has the same length as the second shaft 14b.
  • no gear 23 is provided.
  • the shafts 14a and 14b are mounted via bearings 15 in the left side plate 51, which has for this purpose on its inside round recesses, of which the bearings 15 are partially surrounded.
  • the housing part 20 is here like a lid and the left side plate 51 cup-shaped. This could be the other way around. Also here could the housing part 20 - as in FIG. 2 shown - formed closed and can thus be attached to the left side plate 5l as a modular component.
  • shafts 14a and 14b and the left wheels 3l are integrally formed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • General Details Of Gearings (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The chassis (1) has left and right wheels (3l, 3r) located at right and left side plates (5r, 5l) and running on a rail (4). The wheels arranged in series are seen in a driving direction of the chassis, where the wheels are driven by an electric motor (10). The wheels are drivingly connected to shafts, where the shafts are coaxially aligned to a rotation axis of the wheels. The right and left plates have hubs projected at an inner side, on which the wheels are mounted. Gear wheels are mounted on the shafts and mesh with one another over an intermediate gear wheel.

Description

Die Erfindung betrifft ein Einschienenunterflansch-Fahrwerk für Hebezeuge mit mehreren Rädern, die auf einer Schiene ablaufen, von denen mindestens zwei in Fahrtrichtung des Fahrwerkes gesehen hintereinander angeordnet über einen gemeinsamen Elektromotor antreibbar sind.The invention relates to a Einschienenunterflansch suspension for hoists with multiple wheels, which run on a rail, of which at least two seen in the direction of travel of the chassis are arranged behind one another via a common electric motor driven.

Aus dem deutschen Gebrauchsmuster DE 84 34 418 U1 ist ein derartiges Fahrwerk bekannt. Das Fahrwerk besteht im Wesentlichen aus einem u-förmigen Rahmen und vier Rädern, die auf dem Unterflansch einer I-förmigen Schiene verfahrbar sind. Die Räder weisen jeweils einen Spurkranz auf, mit dem die Räder an der Außenseite des Unterflansches geführt werden. In Längsrichtung der Schiene gesehen sind die vier Räder nach Art eines Vierradfahrzeuges in ein rechtes Paar und ein linkes Paar aufgeteilt. Innerhalb der Paare sind die beiden linken beziehungsweise beide rechten Räder mit Abstand und hintereinander angeordnet. Außerdem ist eines der beiden Paare mittels eines Elektromotors angetrieben. Hierfür weist das angetriebene Paar der Räder jeweils einen umlaufenden Zahnkranz auf, der im Bereich des Außenumfangs der Spurkränze der Räder angeordnet ist. Die Zahnkränze der beiden angetriebenen Räder sind antriebstechnisch über ein zwischen den angetriebenen Rädern angeordnetes Zahnrad miteinander verbunden. Dieses Zahnrad kämmt also mit den beiden Zahnkränzen der angetriebenen Räder und ist auf einer Abtriebswelle eines Getriebes befestigt, dass in Längsrichtung der Schiene und somit in Fahrtrichtung des Fahrwerkes gesehen seitlich an dem Rahmen befestigt ist. Der Rahmen befindet sich somit zwischen Getriebe und Zahnrad. Antriebseitig ist an dem Getriebe der Elektromotor angeflanscht. Außerdem umgreift der Rahmen mit den Rädern die Schiene von unten u-förmig und weist eine bolzenförmige Quertraverse auf, an der zentral der Kettenzug aufgehängt ist. Über die Quertraverse kann die Breite des Rahmens verändert werden, so dass das Fahrwerk auf die Breite unterschiedlicher I-förmiger Schienen eingestellt werden kann.From the German utility model DE 84 34 418 U1 is known such a chassis. The chassis consists essentially of a U-shaped frame and four wheels, which are movable on the lower flange of an I-shaped rail. The wheels each have a flange, with which the wheels are guided on the outside of the lower flange. Seen in the longitudinal direction of the rail, the four wheels are divided in the manner of a four-wheel vehicle in a right pair and a left pair. Within the pairs, the two left and two right wheels are arranged at a distance and behind each other. In addition, one of the two pairs is driven by an electric motor. For this purpose, the driven pair of wheels each have a revolving sprocket, which is arranged in the region of the outer circumference of the wheel flanges of the wheels. The sprockets of the two driven wheels are drivingly connected to each other via an arranged between the driven wheels gear. This gear meshes with the two sprockets of the driven wheels and is mounted on an output shaft of a transmission that is seen in the longitudinal direction of the rail and thus seen in the direction of travel of the chassis laterally attached to the frame. The frame is thus between gear and gear. Drive side, the electric motor is flanged to the transmission. In addition, the frame with the wheels surrounds the rail from below u-shaped and has a bolt-shaped cross-beam on which the chain hoist is suspended centrally. About the crossbeam, the width of the frame can be changed so that the chassis can be adjusted to the width of different I-shaped rails.

Des Weiteren ist aus dem deutschen Patent DE 34 18 800 C1 ein ähnliches auf dem Unterflansch einer I-förmigen Schiene, insbesondere Hängebahnschiene, verfahrbares Fahrwerk bekannt. Dieses Fahrwerk unterscheidet sich im Wesentlichen von dem zuvor beschriebenen Fahrwerk dadurch, dass es anstatt der vier Räder nur zwei gegenüberliegend angeordnete Räder mit Spurkränzen aufweist. Eines der beiden Räder ist über einen Elektromotor mit einem Getriebe angetrieben. Hierfür ist das Getriebe mit seiner Abtriebswelle direkt mit der Achse des angetriebenen Rades verbunden.Furthermore, from the German patent DE 34 18 800 C1 a similar on the lower flange of an I-shaped rail, in particular overhead rail, movable chassis known. This chassis differs essentially from the chassis described above in that instead of the four wheels it has only two oppositely arranged wheels with flanges. One of the Both wheels are driven by an electric motor with a gearbox. For this purpose, the transmission is connected with its output shaft directly to the axis of the driven wheel.

Aus dem deutschen Gebrauchsmuster DE 1 902 712 ist bereits ein EinschienenUnterflansch-Fahrwerk für Hängekrane bekannt, dessen insgesamt vier Laufräder in Fahrtrichtung gesehen hintereinander und gegenüberliegend angeordnet sind. Die Laufräder sind an einem rechten und linken Seitenschild, insbesondere dessen Innenseite, gelagert. Der Antrieb der Laufräder erfolgt über eine durch die Seitenschilde auf deren Rückseite geführte Antriebswelle, die über Zahnräder eines Getriebes mit einem Elektromotor verbunden sind. Die Zahnräder des Getriebes sind über ein Gehäuse verkapselt und somit vor Verschmutzungen geschützt.From the German utility model DE 1 902 712 is already a monorail flange landing gear for overhead cranes known whose total of four wheels seen in the direction of travel are arranged one behind the other and opposite. The wheels are on a right and left side plate, in particular the inside, stored. The drive of the wheels via a guided through the side shields on the back drive shaft, which are connected via gears of a transmission with an electric motor. The gears of the gearbox are encapsulated by a housing and thus protected from contamination.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zu Grunde, ein Fahrwerk, insbesondere Einschienenunterflansch-Fahrwerk für Hebezeuge, zu schaffen, das auch in schmutziger Umgebung verschleiß- und geräuscharm ist.Based on this prior art, the invention is based on the object to provide a chassis, especially Einschienenunterflansch suspension for hoists, which is wear and low noise even in dirty environment.

Diese Aufgabe wird durch ein Fahrwerk, insbesondere Einschienenunterflansch-Fahrwerk für Hebezeuge, mit den Merkmalen des Anspruches 1 gelöst. Vorteilhafte Ausgestaltungen des Fahrwerks sind in den Ansprüchen 2 bis 11 angegeben.This object is achieved by a chassis, in particular Einschienenunterflansch suspension for hoists, with the features of claim 1. Advantageous embodiments of the chassis are given in claims 2 to 11.

Bei einem Einschienenunterflansch-Fahrwerk für Hebezeuge mit mehreren an einem rechten und einem linken Seitenschild gelagerten Rädern, die auf einer Schiene ablaufen, von denen mindestens zwei in Fahrtrichtung des Fahrwerkes gesehen hintereinander angeordnet über einen gemeinsamen Elektromotor antreibbar sind, wird eine Optimierung des Fahrwerkes dadurch erreicht, dass die angetriebenen Räder antriebsmäßig mit Wellen verbunden sind und die Wellen von dem Elektromotor angetrieben sind, die Wellen koaxial zur Drehachse der angetriebenen Räder ausgerichtet sind, das rechte Seitenschild und das linke Seitenschild jeweils an einer Innenseite hervorstehende Naben aufweisen, auf denen die Räder gelagert sind, die Naben für die angetriebenen Räder hohl sind, die Wellen durch die Naben und das zugehörige Seitenschild durchgeführt sind und auf den Wellen und an der den angetriebenen Rädern gegenüberliegenden Außenseite des Seitenschildes jeweils ein Zahnrad gelagert ist, die über ein Zwischenzahnrad miteinander kämmen. Hierdurch wird auch eine besonders einfache Lagerung der Räder an den Seitenschildern erreicht. Durch den Direktantrieb der Räder über Wellen können die Räder ohne einen umlaufenden Zahnkranz ausgebildet werden. Außerdem liegt bei den Rädern mit den Zahnkränzen der Zahnkranz im Abrollbereich der Räder, was in Folge von Verschmutzungen zu einem höheren Verschleiß und höheren Laufgeräuschen, insbesondere bei hohen Geschwindigkeiten, führt. Außerdem verringert sich der Durchmesser der Räder gegenüber Rädern mit Zahnkränzen, so dass der Radstand innerhalb des Fahrwerks kürzer gewählt werden kann und somit die Kurvengängigkeit des Fahrwerks begünstigt wird. Auch kann ein Doppelradantrieb realisiert werden.In a Einschienenunterflansch suspension for hoists with several mounted on a right and a left side plate wheels that run on a rail, at least two of which seen in the direction of travel of the chassis are arranged behind each other driven by a common electric motor, an optimization of the chassis is achieved in that the driven wheels are drivingly connected to shafts and the shafts are driven by the electric motor, the shafts are aligned coaxially with the axis of rotation of the driven wheels, the right side shield and the left side shield each have inner protruding hubs on which the wheels are mounted are, the hubs for the driven wheels are hollow, the waves are performed by the hubs and the associated side plate and on the shafts and on the driven wheels opposite the outside of the side plate each have a gear is mounted, the practice r an intermediate gear mesh with each other. This also makes a particularly simple storage of the wheels to the Side signs reached. Due to the direct drive of the wheels via shafts, the wheels can be formed without a revolving sprocket. In addition, in the wheels with the sprockets of the ring gear in the Abrollbereich of the wheels, resulting in dirt due to contamination to higher wear and higher noise, especially at high speeds leads. In addition, the diameter of the wheels is reduced compared to wheels with sprockets, so that the wheelbase within the chassis can be chosen shorter and thus the cornering of the chassis is favored. Also, a double-wheel drive can be realized.

Eine Trennung der Räder von den Zahnrädern wird dadurch erreicht, dass die Wellen an einem Seitenschild des Fahrwerks gelagert sind. Dies erleichtert auch eine Schmierung der Zahnräder ohne die Übertragung der Antriebskräfte der Räder auf die Schiene durch Schmiermittel negativ zu beeinflussen.A separation of the wheels from the gears is achieved in that the waves are mounted on a side plate of the chassis. This also facilitates lubrication of the gears without adversely affecting the transmission of the driving forces of the wheels to the rail by lubricant.

Konstruktiv besonders einfach ist vorgesehen, dass eine der Wellen über das Zahnrad hinaus verlängert ist und antriebsmäßig über ein Getriebe mit dem Elektromotor verbunden ist, wobei das Zwischenzahnrad die Kraftübertragung auf die zweite Welle übernimmt.Particularly simple design is provided that one of the waves is extended beyond the gear out and is drivingly connected via a gear to the electric motor, wherein the intermediate gear takes over the power transmission to the second shaft.

Alternativ ist konstruktiv besonders einfach vorgesehen, dass das Zwischenzahnrad auf einer Zwischenwelle gelagert ist, die antriebsmäßig mit dem Elektromotor verbunden ist. Bei dieser Lösung ist auch zusätzlich eine Übersetzung vorgesehen in Form eines auf der Zwischenwelle gelagerten Übersetzungszahnrades, das mit einem antriebsmäßig mit dem Elektromotor verbundenen Antriebszahnrad kämmt.Alternatively, it is particularly simple to constructively provide that the intermediate gear is mounted on an intermediate shaft, which is drivingly connected to the electric motor. In this solution, a translation is also provided in the form of a mounted on the intermediate shaft gear ratio, which meshes with a drivingly connected to the electric motor drive gear.

Durch die zuvor beschriebene Trennung der Räder von den Zahnrädern kann einfach vorgesehen werden, dass mindestens die Zahnräder und das Zwischenzahnrad von einem Gehäuseteil umschlossen sind, das an dem Seitenschild des Rahmens befestigt ist. Durch das Gehäuseteil können die Laufgeräusche der Zahnräder minimiert und einfach eine Öl- oder Fettschmierung der Zahnräder vorgesehen werden.By the above-described separation of the wheels from the gears can be easily provided that at least the gears and the intermediate gear are enclosed by a housing part which is fixed to the side plate of the frame. Through the housing part of the running noise of the gears can be minimized and easy oil or grease lubrication of the gears are provided.

In einer Ausgestaltung ist vorgesehen, dass an dem Gehäuseteil der Elektromotor gelagert ist. Eine weitere Ausbildung sieht vor, dass der Elektromotor über ein Getriebe auf die Wellen wirkt.In one embodiment, it is provided that the electric motor is mounted on the housing part. Another training provides that the electric motor over a Transmission acts on the waves.

Konstruktiv einfach ist, dass die Wellen und die angetriebenen Räder einteilig ausgebildet sind.Constructively simple is that the shafts and the driven wheels are integrally formed.

In einer Ausgestaltung wird vorgeschlagen, dass das Fahrwerk im Wesentlichen aus einem u-förmigen Rahmen mit zwei angetriebenen Rädern und zwei nicht angetriebenen Rädern besteht, der Rahmen ein rechtes Seitenschild und ein gegenüberliegendes linkes Seitenschild aufweist, die über eine Quertraverse zu dem u-förmigen Rahmen miteinander verbunden an den jeweiligen Innenseiten der Seitenschilder gelagert sind und auf dem Unterflansch der Schiene abrollen.In one embodiment, it is proposed that the landing gear consist essentially of a U-shaped frame with two driven wheels and two non-driven wheels, the frame has a right side shield and an opposite left side shield, which has a cross-beam to the U-shaped frame are mounted together on the respective inner sides of the side plates and roll on the lower flange of the rail.

Dadurch dass das Fahrwerk über seitlich an der Schiene ablaufende Führungsrollen geführt ist, können die Räder ohne Spurkränze ausgeführt werden und der Radstand kleiner gewählt werden.The fact that the chassis is guided over running laterally on the rail guide rollers, the wheels can be performed without flanges and the wheelbase be chosen smaller.

Nachfolgend wird die Erfindung an Hand von zwei in einer Zeichnung dargestellten Ausführungsbeispielen näher erläutert. Es zeigen:

Figur 1
eine Schnittansicht eines Fahrwerk an einer I-förmigen Schiene,
Figur 2
eine Schnittansicht von oben des Fahrwerk nach Figur 1 in einer ersten Ausführungsform und
Figur 3
eine Schnittansicht des angetriebenen Teils des Fahrwerk nach Figur 1 in einer zweiten Ausführungsform
The invention will be explained in more detail with reference to two embodiments shown in a drawing. Show it:
FIG. 1
a sectional view of a chassis on an I-shaped rail,
FIG. 2
a sectional view from the top of the chassis to FIG. 1 in a first embodiment and
FIG. 3
a sectional view of the driven part of the chassis after FIG. 1 in a second embodiment

Die Figur 1 zeigt eine Schnittansicht eines Fahrwerks 1 für einen nicht dargestellten Kettenzug oder einen Kopfträger eines Krans. Das Fahrwerk 1 besteht im Wesentlichen aus einem Rahmen 2 und vier Rädern 3, von denen ein rechtes Rad 3r und ein linkes Rad 31 sichtbar sind.The FIG. 1 shows a sectional view of a chassis 1 for a chain hoist, not shown, or a head support of a crane. The chassis 1 consists essentially of a frame 2 and four wheels 3, of which a right wheel 3r and a left wheel 31 are visible.

Der Rahmen 2 ist im Wesentlichen u-förmig ausgestaltet und umgreift von unten eine I-förmige Schiene 4 im Bereich deren Unterflansch 4u und angrenzenden Steg 4s. Außerdem besteht der Rahmen 2 aus einem linken Seitenschild 51 und einem rechten Seitenschild 5r, an dem die Räder 3r und 31 gelagert sind und die über eine Quertraverse 6 miteinander verbunden sind. Hierfür weisen die Seitenschilder 5l und 5r zentral und
unten jeweils eine Bohrung 7 auf, durch die die bolzenförmige Quertraverse 6 durchgeführt ist. Die Quertravese 7 verbindet somit die beiden Seitenschilder 5l und 5r zu dem Rahmen 2. Im Bereich der Bohrung 7 ist die Quertraverse 6 in deren Längsrichtung durch Ringe 8 festgelegt, die sich an den jeweiligen Seiten der Seitenschilder 51 und 5r anlegen. Über die Quertraverse 6 mit den Ringen 8 können somit die Seitenschilder 51 und 5r auf die Breite des Unterflansches 4u der Schiene 4 eingestellt werden.
The frame 2 is designed substantially U-shaped and engages from below an I-shaped rail 4 in the region of the lower flange 4u and adjacent web 4s. In addition, the frame 2 consists of a left side plate 51 and a right Side plate 5r, on which the wheels 3r and 31 are mounted and which are connected to each other via a cross-beam 6. For this purpose, the side plates 5l and 5r central and
below in each case a bore 7, through which the bolt-shaped cross-beam 6 is performed. The transverse traverse 7 thus connects the two side plates 5l and 5r to the frame 2. In the region of the bore 7, the cross-beam 6 is fixed in the longitudinal direction by rings 8, which rest against the respective sides of the side plates 51 and 5r. Thus, the side plates 51 and 5r can be adjusted to the width of the lower flange 4u of the rail 4 via the cross-beam 6 with the rings 8.

Die Räder 3 laufen auf der Oberseite des Unterflansches 4u der I-förmigen Schiene 4 ab. Außerdem weisen die Räder 3 keine Spurkränze auf, da der Rahmen 2 über Führungsrollen 9 an den seitlichen Längsseiten des Unterflansches 4u geführt werden. Die Führungsrollen 9 sind hierfür um vertikale Achsen drehbar an den Seitenschildern 5l und 5r gelagert. Die vertikalen Achsen sind dann vertikal ausgerichtet, wenn die Schiene 4 horizontal verläuft.The wheels 3 run on the top of the lower flange 4u of the I-shaped rail 4 from. In addition, the wheels 3 have no flanges, since the frame 2 are guided over guide rollers 9 on the lateral longitudinal sides of the lower flange 4u. The guide rollers 9 are for this purpose rotatably mounted about vertical axes on the side plates 5l and 5r. The vertical axes are then vertically aligned when the rail 4 is horizontal.

Auch ist der Figur 1 zu entnehmen, das nur die linken Räder 3l über einen an dem linken Seitenschild 5l über ein Getriebe 23 angeflanschten Elektromotor 10 angetrieben sind.Also is the FIG. 1 can be seen that only the left wheels 3l are driven by a flanged to the left side plate 5l via a gear 23 electric motor 10.

In der Figur 2 ist eine Schnittansicht von oben des Fahrwerks 1 nach Figur 1 in einer ersten Ausführungsform gezeigt. Es ist ersichtlich, dass in Längsrichtung L der Schiene 4 gesehen die linken Räder 3l und die rechten Räder 3r hintereinander und mit Abstand untereinander an dem jeweiligen Seitenschild 5l und 5r drehbar befestigt sind. Hierfür weisen das linke Seitenschild 51 und das rechte Seitenschild 5r jeweils zwei Naben 11 auf, die sich ausgehend von der der Schiene 4 zugewandten Innenseite 5i sich zur Schiene 4 beziehungsweise zu dem gegenüberliegenden rechten Seitenschild 5r erstrecken. Auf den Außenumfang der Naben 11 ist jeweils ein Lager 12, vorzugsweise Kugellager, aufgeschoben, das jeweils eines der Räder 3 trägt. Die Naben 11 an dem rechten Seitenschild 5r sind als Vollnaben ausgebildet, wohingegen die Naben 11 an dem linken Seitenschild 5l Hohlnaben sind.In the FIG. 2 is a sectional view from above of the chassis 1 after FIG. 1 shown in a first embodiment. It can be seen that seen in the longitudinal direction L of the rail 4, the left wheels 3l and the right wheels 3r are rotatably mounted one behind the other and at a distance from each other on the respective side plate 5l and 5r. For this purpose, the left side shield 51 and the right side shield 5r each have two hubs 11 which extend starting from the rail 4 facing inside 5i to the rail 4 and to the opposite right side shield 5r. On the outer circumference of the hubs 11 each have a bearing 12, preferably ball bearings, pushed, each carrying one of the wheels 3. The hubs 11 on the right side shield 5r are formed as full hubs, whereas the hubs 11 on the left side shield 5l are hollow hubs.

Um die linken Räder 31 des linken Seitenschildes 51 antreiben zu können, sind in den linken Räder 3l zentralen Bohrungen 13 vorgesehen, in die Wellen 14a und 14b eingesteckt sind. Die Wellen 14a und 14b können formschlüssig über Vielzahnverbindungen oder Pressverbindungen in den Bohrungen 13 gehalten sein. Um baugleiche linke und rechte Räder 31 und 3r zu verwenden, können die Bohrungen 13 auch in den rechte Rädern 3r vorgesehen sein, haben dort aber keine Funktion.In order to be able to drive the left wheels 31 of the left side shield 51, central bores 13 are provided in the left wheels 3 l, into which shafts 14 a and 14 b are inserted. The shafts 14a and 14b may be held in a form-fitting manner via multi-tooth connections or press-fit connections in the bores 13. In order to use structurally identical left and right wheels 31 and 3r, the bores 13 may also be provided in the right wheels 3r, but have no function there.

Die Wellen 14a und 14b sind über ein weiteres Lager 15 in einem Gehäuseteil 20 gelagert. Das Gehäuseteil 20 liegt flächig an dem linken Seitenschild 51 an und ist mit diesem verschraubt. Im Anschluss an das Lager 15 ist auf die Wellen 14a und 14b über übliche Wellen- und Nabenverbindungsarten jeweils ein Zahnrad 16a und 16b angeordnet. Der Außendurchmesser der Zahnräder 16a und 16b ist gleich. Um die Zahnräder 16a und 16b, insbesondere Stirnräder, antriebsmäßig miteinander zu verbinden, ist zwischen den Zahnrädern 16a und 16b ein Zwischenzahnrad 17 angeordnet, das mit den Zahnrädern 16a und 16b kämmt. Das Zwischenzahnrad 17 ist auf einer Zwischenwelle 18 gelagert, die parallel und in einer Linie mit den Wellen 14a und 14b angeordnet ist. Außerdem ist die Zwischenwelle 18 an beiden Enden jeweils in einem Lager 19, vorzugsweise einem Kugellager, gelagert. Die Lager 19 sind in den Wänden des Gehäuseteils 20 gelagert. Dieses Gehäuseteil 20 nimmt die Zahnräder 16a und 16b, die Wellen 14a und 14b, das Zwischenzahnrad 17 und die Zwischenwelle 18 auf. Das von den Zahnrädern 16a und 16b sowie dem Zwischenzahnrad 17 gebildete Getriebe ist somit abgeschlossen und kann somit mit einer Öl- oder Fettfüllung versehen werden.The shafts 14a and 14b are mounted via a further bearing 15 in a housing part 20. The housing part 20 is flat against the left side shield 51 and is screwed thereto. Subsequent to the bearing 15, a gear 16a and 16b are respectively arranged on the shafts 14a and 14b via conventional shaft and hub connection types. The outer diameter of the gears 16a and 16b is the same. In order to drivingly connect the gears 16a and 16b, in particular spur gears, between the gears 16a and 16b, an intermediate gear 17 is arranged, which meshes with the gears 16a and 16b. The intermediate gear 17 is supported on an intermediate shaft 18 which is arranged in parallel and in line with the shafts 14a and 14b. In addition, the intermediate shaft 18 is mounted at both ends in each case in a bearing 19, preferably a ball bearing. The bearings 19 are mounted in the walls of the housing part 20. This housing part 20 receives the gears 16a and 16b, the shafts 14a and 14b, the intermediate gear 17 and the intermediate shaft 18. The gear formed by the gears 16a and 16b and the intermediate gear 17 is thus completed and can thus be provided with an oil or grease filling.

Das Gehäuseteil 20 ist hier in sich geschlossen ausgebildet und kann somit als modulares Bauteil an das linke Seitenschild 5l angebaut werden. Das Gehäuseteil 20 könnte auch deckelartig und das linke Seitenschild 51 topfförmig ausgebildet sein. Dies könnte auch umgekehrt sein.The housing part 20 is formed here closed in itself and can thus be grown as a modular component to the left side plate 5l. The housing part 20 could also be lid-like and the left side plate 51 cup-shaped. This could be the other way around.

Außerdem ist die erste Welle 14a von dem linken Rad 3l über das Zahnrad 16a hinaus verlängert und ragt aus dem Gehäuseteil 20 heraus. Das Gehäuseteil 20 weist eine entsprechende Bohrung 24 auf. Das herausragende Ende der Welle 14a ist mit dem Getriebe 23 mit dem Elektromotor 10 verbunden, das an der Außenseite des Gehäuseteils befestigt ist. Die erste Welle 14a ist in dieser Ausführungsform die Abtriebswelle des Getriebes 23In addition, the first shaft 14a is extended from the left wheel 3l beyond the gear 16a and protrudes out of the housing part 20. The housing part 20 has a corresponding bore 24. The protruding end of the shaft 14 a is connected to the gear 23 with the electric motor 10, which is fixed to the outside of the housing part. The first shaft 14a in this embodiment is the Output shaft of the transmission 23rd

Des Weiteren sind in der Figur 2 die Führungsrollen 9 dargestellt, die an dem linken Seitenschild 5l und an dem rechten Seitenschild 5r gelagert sind und in Längsrichtung L der Schiene 4 gesehen vor dem vorderen und hinter dem hinteren der linken Räder 31 beziehungsweise der rechten Räder 3l angeordnet sind.Furthermore, in the FIG. 2 the guide rollers 9 are shown, which are mounted on the left side plate 5l and on the right side plate 5r and seen in the longitudinal direction L of the rail 4 are arranged in front of the front and behind the rear of the left wheels 31 and the right wheels 3l.

In der Figur 3 ist eine Schnittansicht des linken Seitenschilds 5l nach Figur 1 in einer zweiten Ausführungsform gezeigt. Die zweite Ausführungsform stimmt im Wesentlichen mit der ersten Ausführungsform überein, so dass auf die dortige Beschreibung Bezug genommen wird. Nachfolgend werden nur die Unterschiede beschrieben. In der zweiten Ausführungsform ist der Elektromotor 10 nicht direkt mit der ersten Welle 14a verbunden, sondern weist abtriebsseitig ein Antriebszahnrad 21 auf, das mit einen auf der Zwischenwelle 18 befestigtem Übersetzungszahnrad 22 kämmt. Hierbei weist die erste Welle 14a die gleiche Länge wie die zweite Welle 14b auf. Somit ist kein Getriebe 23 vorzusehen. Die Wellen 14a und 14b sind über Lager 15 in den linken Seitenschild 51 gelagert, das hierfür an seiner Innenseite runde Aussparungen aufweist, von denen die Lager 15 teilweise umgeben sind.In the FIG. 3 is a sectional view of the left side plate 5l after FIG. 1 shown in a second embodiment. The second embodiment is substantially identical to the first embodiment, so that reference is made to the description there. Only the differences are described below. In the second embodiment, the electric motor 10 is not directly connected to the first shaft 14a, but has on the output side a drive gear 21 which meshes with a transmission gear 22 fixed on the intermediate shaft 18. Here, the first shaft 14a has the same length as the second shaft 14b. Thus, no gear 23 is provided. The shafts 14a and 14b are mounted via bearings 15 in the left side plate 51, which has for this purpose on its inside round recesses, of which the bearings 15 are partially surrounded.

Das Gehäuseteil 20 ist hier deckelartig und das linke Seitenschild 51 topfförmig ausgebildet. Dies könnte auch umgekehrt sein. Auch könnte hier das Gehäuseteil 20 - wie in Figur 2 gezeigt - geschlossen ausgebildet und kann somit als modularen Bauteil an das linke Seitenschild 5l angebaut werden.The housing part 20 is here like a lid and the left side plate 51 cup-shaped. This could be the other way around. Also here could the housing part 20 - as in FIG. 2 shown - formed closed and can thus be attached to the left side plate 5l as a modular component.

Auch sind die Wellen 14a und 14b und die linken Räder 3l einteilig ausgebildet.Also, the shafts 14a and 14b and the left wheels 3l are integrally formed.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

  • 1 Fahrwerk1 suspension
  • 2 Rahmen2 frames
  • 3 Rad3 wheel
  • 3l linkes Rad3l left wheel
  • 3r rechtes Rad3r right wheel
  • 4 Schiene4 rail
  • 4s Steg4s footbridge
  • 4u Unterflansch4u bottom flange
  • 5a Außenseite5a outside
  • 5r rechtes Seitenschild5r right side shield
  • 5i Innenseite5i inside
  • 5l linkes Seitenschild5l left side shield
  • 6 Quertraverse6 crossbeam
  • 7 Bohrung7 hole
  • 8 Ring8 ring
  • 9 Führungsrolle9 leadership role
  • 10 Elektromotor10 electric motor
  • 11 Nabe11 hub
  • 12 Lager12 bearings
  • 13 Bohrung13 hole
  • 14a Welle14a wave
  • 14b Welle14b wave
  • 15 Lager15 bearings
  • 16a Zahnrad16a gear
  • 16b Zahnrad16b gear
  • 17 Zwischenzahnrad17 idler gear
  • 18 Zwischenwelle18 intermediate shaft
  • 19 Lager19 bearings
  • 20 Gehäuseteil20 housing part
  • 21 Antriebszahnrad21 drive gear
  • 22 Übersetzungszahnrad22 translation gear
  • 23 Getriebe23 gears
  • 24 Bohrung24 hole
  • L LängsrichtungL longitudinal direction

Claims (11)

  1. Single-rail bottom-flange-running trolley for hoisting equipment, having a plurality of wheels (3) mounted on a left-hand and a right-hand side-plate (5r, 5l), which wheels (3) run on a rail (4) and of which wheels (3) at least two are arranged one behind another looking in the direction of travel of the trolley (1) and can be driven by a common electric motor (10), characterised in that the driven wheels (31) are connected, for driving purposes, to shafts (14a, 14b), the shafts (14a, 14b) are driven by the electric motor (10), the shafts (14a, 14b) are co-axially aligned with the axes of rotation of the driven wheels (31), the right-hand side-plate (5r) and the left-hand side-plate (51) each have, on an inside face (5i), projecting bosses (11) on which the wheels (31, 3r) are mounted, the bosses (11) for the driven wheels (31) are hollow, the shafts (14a, 14b) pass through the bosses (11) and the associated side-plate (51, 5r), and there are on mounted on the shafts (14a, 14b), on the outer side (5a) opposite from the driven wheels (31) of the side-plate (51, 5r), respective gears (16a, 16b) which mesh with one another via an intermediate gear (17).
  2. Trolley according to claim 1, characterised in that the shafts (14A, 14B) are mounted in the left-hand side-plate (51) of the trolley.
  3. Trolley according to claim 2, characterised in that one of the shafts (14a, 14b) extends beyond the gear (16a, 16b) and is connected to the electric motor (10) by a gearbox (23) for driving purposes.
  4. Trolley according to claim 2, characterised in that the intermediate gear (17) is mounted on an intermediate shaft (18) which is connected to the electric motor (10) for driving purposes.
  5. Trolley according to claim 4, characterised in that there is mounted on the intermediate shaft (18) a transmission gear (22) which, for driving purposes, meshes with the drive gear (21) connected to the electric motor (10).
  6. Trolley according to one of claims 2 to 5, characterised in that at least the gears (16a, 16b) and the intermediate gear (17) are enclosed by a housing member (20) which is fastened to the side-plate (51) of the frame (2).
  7. Trolley according to claim 6, characterised in that the electric motor (10) is mounted on the housing member (20).
  8. Trolley according to one of claims 1 to 7, characterised in that the electric motor (10) acts on the shafts (14a, 14b) via a gearbox (23).
  9. Trolley according to one of claims 1 to 8, characterised in that the shafts (14a, 14b) and the driven wheels (31) are formed to be in one piece with one another.
  10. Trolley according to one of claims 1 to 9, characterised in that the trolley (1) comprises in essence a U-shaped frame (5) having two driven wheels (31) and two undriven wheels (3r), the frame (2) has a right-hand side-plate (5r) and, situated opposite, a left-hand side-plate (51) which are connected together by means of a crossmember (6) to form the U-shaped frame (2), the frame (2) fits round a I-shaped rail (4) from below and the wheels (31, 3r) are mounted on the respective inside faces (5i) of the side-plates (51, 5r) and roll on the bottom flange (4u) of the rail (4).
  11. Trolley according to one of claims 1 to 10, characterised in that the trolley (1) is guided by guide rollers (9) which run against the rail laterally.
EP07114537A 2006-08-25 2007-08-17 Undercarriage, in particular one-rail under-flange carriage, for hoisting equipment Active EP1892169B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006039812A DE102006039812B3 (en) 2006-08-25 2006-08-25 Monorail bottom flange-chassis for e.g. chain hoist, of crane, has wheels drivingly connected to shafts, which are coaxially aligned to rotation axis of wheels, and plates with hubs projected at inner side, on which wheels are mounted

Publications (3)

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EP1892169A2 EP1892169A2 (en) 2008-02-27
EP1892169A3 EP1892169A3 (en) 2008-11-26
EP1892169B1 true EP1892169B1 (en) 2010-07-21

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Country Status (4)

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US (1) US7739960B2 (en)
EP (1) EP1892169B1 (en)
AT (1) ATE474757T1 (en)
DE (2) DE102006039812B3 (en)

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Also Published As

Publication number Publication date
US20080047919A1 (en) 2008-02-28
ATE474757T1 (en) 2010-08-15
DE102006039812B3 (en) 2008-02-21
DE502007004456D1 (en) 2010-09-02
EP1892169A3 (en) 2008-11-26
US7739960B2 (en) 2010-06-22
EP1892169A2 (en) 2008-02-27

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