Transmission for a Rail Vehicle Drive Train

Abstract

The invention concerns a transmission for the drive train of a rail vehicle having an input for connecting a drive motor of the rail vehicle; having an output for connecting the drive wheels of the rail vehicle; having a drive connection between the input and the output which forms a transmission ratio between 5 and 10. The invention is characterised in that the transmission ratio is formed by two transmission stages connected between one another in the drive connection, from which the first transmission stage has a transmission ratio between 1 and 2 and the second transmission stage connected downstream in the drive power flow after the first transmission stage from the input to the output has a transmission ratio of more than double the first transmission stage.

1 - 10 . (canceled) 
     
     
         11 . A transmission for the drive train of a rail vehicle, comprising:
 an input for connecting a drive motor of the rail vehicle;   an output for connecting the drive wheels of the rail vehicle;   a drive connection between the input and the output which forms a transmission ratio between 5 and 10;
 wherein the transmission ratio is formed by two transmission stages connected between one another in the drive connection, from which the first transmission stage has a transmission ratio between 1 and 2 and the second transmission stage connected downstream in the drive power flow after the first transmission stage from the input to the output has a transmission ratio of more than double the first transmission stage. 
   
     
     
         12 . The transmission according to  claim 11 , wherein the drive connection between the input and the output of the transmission forms a transmission ratio between 6 and 8. 
     
     
         13 . The transmission according to  claim 11 , wherein the second transmission stage has a transmission ratio between 4 and 5, in particular between 4.3 and 4.7. 
     
     
         14 . The transmission according to  claim 12 , wherein the second transmission stage has a transmission ratio between 4 and 5, in particular between 4.3 and 4.7. 
     
     
         15 . The transmission according to  claim 11 , wherein both transmission stages are formed by respectively a pair of toothed gears, in particular a pair of spur wheels. 
     
     
         16 . The transmission according to  claim 12 , wherein both transmission stages are formed by respectively a pair of toothed gears, in particular a pair of spur wheels. 
     
     
         17 . The transmission according to  claim 13 , wherein both transmission stages are formed by respectively a pair of toothed gears, in particular a pair of spur wheels. 
     
     
         18 . The transmission according to  claim 14 , wherein both transmission stages are formed by respectively a pair of toothed gears, in particular a pair of spur wheels. 
     
     
         19 . The transmission according to  claim 15 , wherein the drive connection between the input and the output is formed exclusively by both pairs of toothed gears by shafts and bearings associated to them. 
     
     
         20 . The transmission according to  claim 16 , wherein the drive connection between the input and the output is formed exclusively by both pairs of toothed gears by shafts and bearings associated to them. 
     
     
         21 . The transmission according to  claim 17 , wherein the drive connection between the input and the output is formed exclusively by both pairs of toothed gears by shafts and bearings associated to them. 
     
     
         22 . The transmission according to  claim 18 , wherein the drive connection between the input and the output is formed exclusively by both pairs of toothed gears by shafts and bearings associated to them. 
     
     
         23 . The transmission according to  claim 19 , wherein the input is formed of an input shaft, which carries an input toothed gear of the first transmission stage, the output is formed of an output shaft, which carries an output toothed gear of the second transmission stage, and moreover an intermediate shaft is provided, which carries two intermediate toothed gears, among which the first meshes with the input toothed gear and the second meshes with the output toothed gear. 
     
     
         24 . The transmission according to  claim 20 , wherein the input is formed of an input shaft, which carries an input toothed gear of the first transmission stage, the output is formed of an output shaft, which carries an output toothed gear of the second transmission stage, and moreover an intermediate shaft is provided, which carries two intermediate toothed gears, among which the first meshes with the input toothed gear and the second meshes with the output toothed gear. 
     
     
         25 . The transmission according to  claim 21 , wherein the input is formed of an input shaft, which carries an input toothed gear of the first transmission stage, the output is formed of an output shaft, which carries an output toothed gear of the second transmission stage, and moreover an intermediate shaft is provided, which carries two intermediate toothed gears, among which the first meshes with the input toothed gear and the second meshes with the output toothed gear. 
     
     
         26 . The transmission according to  claim 23 , wherein the output shaft is positioned in built-in operating condition with its rotary axis above the rotary axis of the intermediate shaft, and the first intermediate gear wheel meshing with the input toothed gear and the output toothed gear dip in particular essentially to the same depth into a common oil sump. 
     
     
         27 . A drive train for a rail vehicle, comprising:
 a drive motor for driving the rail vehicle;   drive wheels driven by the drive motor;   a transmission according to  claim 11 , in the drive power flow between the drive motor and the drive wheels;   a bogie, in which the drive wheels are mounted;   wherein the transmission is mounted on an output shaft forming the output and carrying the drive wheels and rests on the bogie by means of a torque support.   
     
     
         28 . The drive train according to  claim 27 , wherein the drive motor is mounted in the bogie, and is connected via an elastic coupling which permits elastic movements in particular in axial direction and radial direction, to the input of the transmission. 
     
     
         29 . The drive train according to  claim 27 , wherein the torque support is connected by means of at least one elastic element to the bogie and/or transmission or has such an element for transmitting the supporting force or the supporting torque. 
     
     
         30 . The drive train according to  claim 28 , wherein the torque support is connected by means of at least one elastic element to the bogie and/or transmission or has such an element for transmitting the supporting force or the supporting torque.