Rail vehicle drive with a brake device

Abstract

A drive of a rail vehicle includes two drive wheels and a wheel set shaft which connects the drive wheels for rotation about an axis. A dynamoelectric machine includes a shaft extending axially parallel to the wheel set shaft and mounted for rotation about a further axis. A transmission connects the shaft of the dynamoelectric machine and the wheel set shaft by a non-positive fit. Placed between the dynamoelectric machine and the transmission is a coupling which is configured for direct attachment of a brake disk of a braking apparatus which is arranged between the transmission and the dynamoelectric machine.

Claims

1. A drive of a rail vehicle, said drive comprising: two drive wheels; a wheel set shaft connecting the drive wheels for rotation about an axis; a dynamoelectric machine including a shaft extending axially parallel to the wheel set shaft and mounted for rotation about a further axis; a transmission configured to connect the shaft of the dynamoelectric machine and the wheel set shaft by a non-positive fit; a coupling placed between the dynamoelectric machine and the transmission; and a braking apparatus arranged between the transmission and the coupling or between the coupling and the dynamoelectric machine, said braking apparatus including a brake disk directly fastened to the coupling.

2. The drive of claim 1, further comprising a bearing assembly arranged between the drive wheels for support of the wheel set shaft.

3. The drive of claim 1, further comprising a bearing assembly arranged outside the drive wheels for support of the wheel set shaft.

4. The drive of claim 1, wherein the transmission is configured as a gearwheel transmission.

5. The drive of claim 1, wherein the transmission is configured as a single-stage spur gearing.

6. A bogie, comprising a drive; said drive comprising two drive a wheel set, shaft connecting the drive wheels for rotation about an axis, a dynamoelectric machine including a shaft extending axially parallel to the wheel set shaft and mounted for rotation about a further axis, a transmission configured to connect the shaft of the dynamoelectric machine and the wheel set shaft by a non-positive fit, a coupling placed between the dynamoelectric machine and the transmission, and a braking apparatus arranged between the transmission and the coupling or between the coupling and the dynamoelectric machine, said braking apparatus including a brake disk directly fastened to the coupling.

7. The bogie of claim 6, wherein the drive includes a bearing assembly arranged between the drive wheels for support of the wheel set shaft.

8. The bogie of claim 6, wherein the drive includes a bearing assembly arranged outside the drive wheels for support of the wheel set shaft.

9. The bogie of claim 6, wherein the transmission is configured as a gearwheel transmission.

10. The bogie of claim 6, wherein the transmission is configured as a single-stage spur gearing.

11. A rail vehicle, comprising a bogie, said bogie comprising a drive, said drive comprising two drive wheels, a wheel set shaft connecting the drive wheels for rotation about an axis, a dynamoelectric machine including a shaft extending axially parallel to the wheel set shaft and mounted for rotation about a further axis, a transmission configured to connect the shaft of the dynamoelectric machine and the wheel set shaft by a non-positive fit, a coupling placed between the dynamoelectric machine and the transmission, and a braking apparatus arranged between the transmission and the coupling or between the coupling and the dynamoelectric machine, said braking apparatus including a brake disk directly fastened to the coupling.

12. The rail vehicle of claim 11, wherein the drive includes a bearing assembly arranged between the drive wheels for support of the wheel set shaft.

13. The rail vehicle of claim 11, wherein the drive includes a bearing assembly arranged outside the drive wheels for support of the wheel set shaft.

14. The rail vehicle of claim 11, wherein the transmission is configured as a gearwheel transmission.

15. The rail vehicle of claim 11, wherein the transmission is configured as a single-stage spur gearing.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention and further advantageous embodiments thereof will now be described in greater detail by reference to an exemplary embodiment; in the figures:

(2) FIG. 1 shows a drive with an inside-bearing mounted bogie,

(3) FIG. 2 shows a drive with an outside-bearing mounted bogie.

DETAILED DESCRIPTION OF THE EMBODIMENTS

(4) FIG. 1 shows a drive 1 of a bogie, for example, of a traction vehicle or a locomotive (not shown in detail) in plan view, wherein two drive wheels 2 are connected by a wheel set shaft 3, mounted rotatably about an axis 11. The bearings 14 are herein arranged within the two drive wheels 2. The wheel set shaft 3 is herein driven by means of a transmission 4, wherein the transmission 4 is constructed by means of a large gear which encompasses the wheel set shaft and is connected thereto for conjoint rotation, and a pinion which is situated substantially in axial extension of the axis 12 of a motor shaft 13.

(5) Provided between the pinion and the motor shaft 13 is at least one coupling 5, 9, which can compensate for both an axial and/or a radial and/or an angular offset of the motor shaft 13 and the transmission input shaft on installation and/or operation of the drive. Ideally, the axis 12 of the motor shaft 13 and the axis of the transmission input shaft align axially.

(6) Advantageously, the transmission 4 is configured as a single-stage cylindrical gear transmission in order to utilize optimally the space conditions between the drive wheels 2.

(7) The motor shaft 13 and the transmission input shaft are connected to one another by one or more couplings 5, 9not shown in this case. The braking apparatus 6 is herein space-savingly arranged either on the motor side and/or on the transmission side. A braking effect comes about in that, by means of a braking impulse of a control device, the braking apparatus 6 presses brake pads against the brake disk 7 and so initiates a braking process. Herein, a braking torque is caused which is conducted via the couplings 5, 9 and the pinion to the large gear of the transmission 4 and thereby brakes the wheel set shaft 3. The braking torque is supported against the motor housing or the transmission housing which are each mechanically connected to the bogie 10. The motor 8 itself is mounted by suitable devices to the bogie 10.

(8) The transmission housing is supported, particularly in the region of its pinion, by means of elastic spring elements, on the bogie 10. The spring elements can be mechanically connected, for example, by means of a C-bracket to the bogie 10.

(9) Advantageously, the brake disk can be constructed, in particular in the region of the motor shaft 13 close to the axis, such that an internal ventilation of the motor 8 is at least assisted thereby.

(10) FIG. 2 shows a further drive 1 in plan view, wherein two drive wheels 2 are also connected by a wheel set shaft 3, mounted rotatably about an axis 11. The bearings 14 are herein arranged outside the two drive wheels 2 and supported on the bogie 10 (not shown in detail). Otherwise, the construction of the drive of FIG. 2 matches that of the drive of FIG. 1. The arrangement of the brake device 6 and its control is also identical.

(11) Also notable is that, with an otherwise identical arrangement of the drive, structural space 15 has been gained, particularly with the outside-bearing mounted bogie 10, and can prove advantageous for a larger, that is, axially longer drive between the two drive wheels 2.

(12) In the context of redundancy, two or more brake devices 6 which, in particular, have their own control device, are to be provided between the motor 8 and the transmission input side.