Electric motor and rail vehicle
An electric motor for a rail vehicle has a rotational speed sensor. The rotational speed sensor is mounted to an end shield of the electric motor. A sensor wheel for the rotational speed sensor is mounted to a clutch of the electric motor.
1. An electric motor for a rail vehicle, the electric motor comprising:
a housing;
an end shield forming an end wall of said housing and delimiting said housing to the outside;
a rotor shaft;
a coupling connecting said rotor shaft to a wheelset shaft or a gear shaft of the rail vehicle and having a motor-side part connected to said rotor shaft;
said motor-side part of the coupling being configured to rotate with the rotor shaft;
a rotational speed sensor mounted on an outer side to said end shield; and
a sensor wheel for said rotational speed sensor, said sensor wheel being mounted on said motor-side part of said coupling.
2. The electric motor according to claim 1 , wherein said end shield is a drive-side end shield of the electric motor.
3. The electric motor according to claim 1 , wherein said rotational speed sensor is fastened to a threaded blind hole of said end shield.
4. The electric motor according to claim 1 , wherein said rotational speed sensor is one of a plurality of rotational speed sensors mounted on said end shield.
5. The electric motor according to claim 4 , wherein each of said plurality of rotational speed sensors is fastened to a threaded blind hole formed in said end shield.
6. The electric motor according to claim 1 , wherein said sensor wheel has at least 150 teeth.
7. The electric motor according to claim 1 , wherein the electric motor is a water-cooled motor.
8. The electric motor according to claim 1 , wherein the electric motor has an output of at least 500 kW.
9. The electric motor according to claim 1 , wherein the electric motor has a torque of at least 9000 Nm.
10. A rail vehicle, comprising at least one electric motor according to claim 1 .
11. The rail vehicle according to claim 10 , wherein the rail vehicle is a high-speed train having a maximum speed of at least 200 km/h.