DD287749B5 - Arrangement for mounting the torque stuets of paddlewheels - Google Patents

Description

For this 2 pages drawings

The invention relates to an arrangement for supporting the torque arm of paddlewheels, which can be used in single and multi-engine main drives of paddle wheels to optimize the transmission running behavior. Torque-assisted transmissions are rotatable on the output shaft and in the respective supporting structure via a displacement pin in the longitudinal direction of the torque arm adjustable (DD-PS 81 828). With this technically conventional arrangement, changes in length on the torque arm resulting from torque fluctuations and the resulting vertical deformations of the transmission torque arm can be compensated without force. A disadvantage of this solution that movements at the end of the torque arm in the transverse direction can not be absorbed without force due to the axial forces occurring during the pivoting movement of the blade wheel. They are expressed in horizontal bends of the gearbox, torque arm and displacement boeing. Furthermore, there is the recently metrologically proven disadvantage that the occurring during pivoting Üuerverformungen influence the width load distributions in the transmission and thus the entire running and operating behavior of the transmission. Furthermore, it is known that by incorporating the torque arm via an elastic package coupling is trying to eliminate this negative influence. The disadvantage, however, is that because of the non-linear behavior of the rubber pact no force-free compensation can take place.

From DE-PS 976 678 a bucket wheel excavator is known in which is provided for receiving the force acting on the gear housing back pressure forces, a torque arm whose end is hinged to a bolt which is mounted in two seated on the Schaufelradausleger bearings such that it can be displaced in the direction parallel to the axis of rotation of the impeller. This design allows only a force-free adjustable mounting of the torque arm in the transverse direction. When working the paddle wheel, the gear housing can perform certain movements, which are caused by the elastic deflections of the support structure.

In this bucket wheel excavator, the torque arm is mounted so that it can not be force-adjusted in the transverse direction and is hinged to a bolt. This joint is not capable of the forces occurring in practice, for. For example, with a drive power of 1 000 kW and a 7 m long torque arm, a reaction force of 273 kN acts on this joint, which also applies to the bearing of the bolt.

Another significant disadvantage of this solution is that the transverse deformations occurring during pivoting of the bucket wheel boom adversely affect the width load distributions in the transmission.

The invention has for its object to provide an arrangement for supporting the torque arm of Schaufelradgetrieben, wherein the Schaufelradgetriebe is rotatably mounted on the Schaufelradwelle, and the torque arm is movably mounted in the structure of the Schaufelradauslegers by means of a Verlagerungsbolzen, in both the longitudinal and allows in the transverse direction a force-free adjustable mounting of the torque arm in the structure, and is eliminated by the metrologically proven pivotal influence on the width of the teeth in the transmission output stage and optimized running behavior of the transmission is secured.

According to the invention the object is achieved in that the displacement pin is rigidly secured to the torque arm and is guided force-adjustable adjustable both in the longitudinal direction and in the transverse direction to the torque arm. To guide the displacement pin in the transverse direction of the displacement pin is enclosed by a displacement part and guided in a flat or circular sliding guide.

Another variant for guiding the displacement pin in the transverse direction is that the displacement pin is enclosed by a displacement part, which is transversely guided in a bolt.

According to a proposed third variant, the displacement bolt is enclosed by a displacement part, which is arranged in a swinging manner on the supporting structure of the bucket wheel boom.

The inventive solution ensures that transverse movements at the end of the torque arm, resulting from deformations of the Schaufelradwelle resulting from axial forces on the blade during the process, are absorbed by the setting movement on the displacement pin force-free and the transmission contains no additional Gehäuseverformungen

 The invention will be explained in more detail below. In the accompanying drawing show

Fig. 1: a schematic representation of the transmission arrangement

Fig. 2: a storage variant in which the displacement pin is enclosed by a displacement part, in a schematic representation

Fig. 3: a storage variant in which the displacement part is guided in a bolt, in a schematic representation and Fig. 4: a storage variant, in which the displacement part is arranged to oscillate on the supporting structure of a bucket wheel excavator, in a schematic representation.

The paddle wheel transmission 1 with drive motor 2 and clutch 3 is connected to the paddle wheel 5 in a torsionally rigid manner via the gear drive shaft, which is supported on the separately mounted paddle wheel shaft 4. The bearing of the torque-assisted transmission at the end of the torque arm in the structure of the Schaufelradauslegers via a displacement pin 6. Now occur during excavating axial forces on the impeller 5, which lead to a deformation of the Schaufelradwelle 4, arise at the end of the torque arm in addition to the movements in the longitudinal direction Movements in the transverse direction. A force-free recording of these transverse movements of the displacement pin is possible with the storage variants shown in Figures 2 to 4.

Figure 2 shows the arrangement where the displacement pin 6 is enclosed by the displacement part 7 and can adjust force-free on the guide in the transverse direction.

This sliding can be performed flat or circular.

Another variant is shown in FIG. Here, the sliding takes place through a guided through the displacement part 7 bolt. 8

In Figure 4, the displacement part 7 is shown with the displacement pin 6 oscillating on the support structure of the Schaufelradauslegers.

reference numeral

1 paddle wheel gearbox

2 drive motor

3 clutch

4 bucket wheel shaft

5 paddle wheel

6 displacement bolts

7 shift part

Claims (4)

1. Arrangement for supporting the torque arm of Schaufelradgetrieben, wherein the Schaufelradgetriebe is rotatably mounted on the Schaufelradwelle, and the torque arm is movably supported in the structure of the Schaufelradauslegers by means of a Verlagerungsbolzen, characterized in that the displacement pin (6) is rigidly secured to the torque arm and is guided force-adjustable both in the longitudinal direction and in the transverse direction to the torque arm. 2. Arrangement according to claim 1, characterized in that for guiding the displacement pin (6) in the transverse direction of the displacement pin (6) by a displacement part (7) is enclosed and is guided in a flat or circular sliding guide. 3. Arrangement according to claim 1, characterized in that for guiding the displacement pin (6) in the transverse direction of the displacement pin (6) by a displacement part (7) is enclosed, which is transversely guided in a bolt (8). 4. Arrangement according to claim 1, characterized in that for guiding the displacement pin in the transverse direction of the displacement pin (6) by a displacement part (7) is enclosed, which is arranged swinging on the supporting structure of the Schaufelradauslegers.