Wheel set driving system of light rail vehicle, bogie and light rail vehicle
A drive system and bogie technology, applied in bogies, railway braking systems, transmission devices driven by electric motors, etc., can solve the problem of high impact force between wheels and rails, and limit the use of permanent magnet direct drive motors for light rail vehicles, etc. question
Pending Publication Date: 2022-07-08
北京轨道交通技术装备集团有限公司
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Problems solved by technology
[0003] However, due to the greater unsprung mass brought by the permanent magnet direct drive motor, the impact force between the wheel and the rail is relatively high, resulting in the running speed of light rail vehicles using permanent magnet direct drive motors generally lower than 80 kilometers (km) / hour (h), thereby limiting the scope of use of light rail vehicles using permanent magnet direct drive motors
Method used
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[0028] see figure 1 A schematic diagram of the three-dimensional structure of the wheelset drive system of a light rail vehicle shown, figure 2 A cutaway view of the wheelset drive system of the light rail vehicle shown and image 3 The top view of the wheelset drive system of the light rail vehicle is shown. This embodiment proposes a wheelset drive system of the light rail vehicle, which is installed on the bogie of the light rail vehicle. The wheelset drive system of the light rail vehicle includes: an axle 6. Two elastic wheels 4, permanent magnet direct drive motor 1, motor pull rod 5 and braking device.
[0029] The axle is installed on the bogie, the two elastic wheels are respectively installed at both ends of the axle, the permanent magnet direct drive motor is in interference fit with the axle, and one end of the motor pull rod is connected to the axle. The permanent magnet direct drive motor is connected, and the other end of the motor pull rod is connected with ...
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The invention provides a wheel set driving system of a light rail vehicle, a bogie and the light rail vehicle. Two elastic wheels are installed at the two ends of an axle respectively, a first distance exists between one side of a permanent magnet direct drive motor in interference fit with the axle and the elastic wheel on the same side, and a second distance exists between the other end of the permanent magnet direct drive motor and the elastic wheel on the same side; wherein the first distance is greater than the second distance; the brake device is installed between one side, with the first distance, of the permanent magnet direct drive motor on the axle and the elastic wheels, the distances between the installed permanent magnet motor and the elastic wheels on the two sides are unequal, and therefore the permanent magnet motor is biased, enough space is reserved for installing the brake device on the axle, and the brake device can be installed on the axle through the brake device. The elastic wheels are adopted to reduce the wheel rail impact force of the light rail vehicle in the running process, so that the safety of the light rail vehicle at the running speed of 100 km / h can be guaranteed.
Description
technical field [0001] The present invention relates to the technical field of light rail vehicles, in particular, to a wheelset drive system, a bogie and a light rail vehicle of a light rail vehicle. Background technique [0002] At present, since the permanent magnet direct drive motor is used in the bogie installed with the permanent magnet direct drive motor, the transmission devices such as gearboxes and couplings can be omitted. Compared with the traditional bogie, the energy utilization rate is higher and the environmental pollution is less. and lower noise. [0003] However, due to the larger unsprung mass brought by the permanent magnet direct drive motor, the impact force between the wheel and the rail is high, resulting in the running speed of the light rail vehicle using the permanent magnet direct drive motor is generally lower than 80 kilometers (km) / hour (h), thereby limiting the use of light rail vehicles using permanent magnet direct drive motors. SUMMARY...
Claims
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Login to View More IPC IPC(8): B61C9/50B61F5/50B61H5/00
CPCB61C9/50B61F5/50B61H5/00Y02T30/00
Inventor 张丽朱戡王业刘东坡张洪赵锋樊强穆晓军姜明昊
Owner 北京轨道交通技术装备集团有限公司