DES0027464MA

DES0027464MA -

Info

Publication number: DES0027464MA
Authority: DE

Description

Pa T ENTAKSi¹R IJCII F.:Pa T ENTAKSi ¹ R IJCII F .:

1. Isolierende Wellenkupplung, insbesondere für Oberleitungs-Omnibusse mit Kardanwellenantrieb, dadurch gekennzeichnet, daß als Kupplung ein topfartig ausgebildeter und über den Nabenstumpf geschobener Isolierteil verwendet wird.1. Isolating shaft coupling, especially for overhead line omnibuses with cardan shaft drive, characterized in that the coupling is a pot-shaped and over the Hub stump pushed insulating part is used.

2. Wellenkupplung nach Anspruch 1, dadurch gekennzeichnet, daß der Isolierteil gleichzeitig« als Riemenscheibe ausgebildet ist.2. Shaft coupling according to claim 1, characterized characterized in that the insulating part is designed as a belt pulley at the same time.

3. Wellenkupplung nach Anspruch. 1 und 2, dadurch gekennzeichnet, daß in. den. Isolierteil Platten eingelegt sind, die mit Gewinden, für die Befestigungsschrauben, versehen, sind.3. Shaft coupling according to claim. 1 and 2, characterized in that in. The. Insulating part Plates are inserted, which are provided with threads for the fastening screws.

4. Wellenkupplung nach Anspruch 3, dadurch gekennzeichnet, daß die mit Gewinden, versehenen Platten, die Form etwa eines Halbringes haben und daß ihre Enden auf halbe Stärke gebracht und so· ausgebildet sind, daß sie sich überlappen.4. Shaft coupling according to claim 3, characterized characterized in that the threaded plates are in the form of a half-ring and that their ends are cut to half the thickness and so designed that they are overlap.

5. Wellenkupplung nach Anspruch 4, dadurch gekennzeichnet, daß die Platten an den sich überlappenden Enden mit Bohrungen zur Auf-5. Shaft coupling according to claim 4, characterized in that the plates are attached to the overlapping ends with holes for

■ nähme von Bolzen versehen sind.■ would be provided by bolts.

6. Wellenkupplung nach Anspruch 3, dadurch gekennzeichnet, daß die Platten an. der dem Motorwellenstumpf zugekehrten Seite statt in Form eines Kreisringes in Form eines Vieleckes ausgebildet sind.6. Shaft coupling according to claim 3, characterized in that the plates on. the that Motor shaft stub facing side instead of in the form of a circular ring in the form of a polygon are trained.

Angezogene. Druckschriften:Dressed. Publications:

Deutsche Patentanmeldung F 5495 VIIId/201.German patent application F 5495 VIIId / 201.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

S 27464 VHIb/201S 27464 VHIb / 201

The invention relates to an isolating shaft coupling, such as those between the drive motor shaft and the cardan shaft in the case of electric Trolleybuses used to ground the vehicle body against the traction motor electrically isolate. According to the invention, a cup-shaped and designed as a coupling The insulating part pushed over the hub stub is used. This makes the

ίο Isoilierkupplung reached, d. i.e., the removal of the Cardan joint from Fahrmötorschildlager is reduced, so that the forces that occur are smaller and the shield bearing is no longer so heavily used. At the same time is through the pot-like Formation of the insulating part achieves a dust-tight encapsulation of the traction motor shaft stub, so that no more insulation faults due to dust deposits on the one facing the shaft, as was previously the case Side of the insulating part can occur.

An embodiment of an isolating shaft coupling according to the invention is shown in FIGS Fig. Ι and 2 of the drawing.

Fig. Ι shows a longitudinal section in the axial direction along the line I-I (Fig. 2),

Fig. 2 shows a cross section along the line II-II (Fig. I).

On the motor shaft stub 1 is the Hub flange 2, which is held by the nut 3 and the locking plate 4. The cup-shaped The insulating part 5 is pushed over the hub flange 2 or only over the motor shaft stub 1 and with it the. Screws 6 or 6 "on the hub flange 2 or attached to the universal joint 7. A part of the outer surface of the insulating part 5 is according to the further invention designed as a pulley 8 and can be used, for example, to drive auxiliary machines or the like. Can be used. This results in a further reduction in the overall length of the isolating coupling causes.

In order to ensure a largely unbreakable fastening of the insulating part 5 on the hub flange 2 or on the universal joint 7, plates 9, which are preferably made of hard metal and are provided with a thread for the screws 6 and 6 ″, can be inserted into the insulating part 5. For easier assembly, it is advantageous that the plates 9 have the shape of approximately a half-ring and that their ends g _{a are brought} to half the thickness and are designed so that they overlap. At the overlap points, the plates can be provided with bores 10 for receiving bolts io _a , which are used to adjust and connect the two plate halves during assembly. In order to have to transmit the torques to be transmitted not only by the contact pressure of the insulating element 5 on the hub flange 2 or on the universal joint 7, the plates 9 on the side 9j facing the motor shaft stub 1 instead of in the form of a circular ring in the shape of a polygon being. As a result, a power transmission at the edges of this polygon is achieved at the same time. To avoid breaking points at the corner points of this polygon, the plates 9 can be provided with small bores g _{c at the corner points.}

The invention is not limited to the illustrated embodiment. It is also possible, for example, to produce the isolating part 5 from two parts which are put together, for example, along the dash-dotted line 11. This results in an outer part 1 i _a for transmitting the torque and an inner part iij which keeps the interior free of dust.