An Active Electromagnetic Actuator for Railway Transportation Vehicles
An electromagnetic actuator and railway transportation technology, which is applied in the direction of railway car body parts, transportation and packaging, and the device for lateral relative movement between the chassis and the bogie, can solve the problems of large magnetic resistance and heavy weight, and achieve Improving the stability index and improving the effect of safety
Active Publication Date: 2021-05-11
TONGJI UNIV
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Problems solved by technology
However, there are still some problems when this solution is directly applied to railway transport vehicles. The most important problem is the power problem. The levitation electromagnet of the maglev vehicle needs to carry the full weight of the vehicle and passengers, so the coil usually needs to pass through a large current. Use wires with a large cross-sectional area or apply superconducting technology, and the weight of railway transport vehicles is greater, so it is difficult to suspend only by electromagnetic force; secondly, the problem of efficiency. The medium between the electromagnet and the armature of a maglev vehicle is air, and its magnetic resistance is large. Therefore, a large excitation current is required to establish the required magnetic induction
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Embodiment 1
[0036] An active electromagnetic actuator for railway transport vehicles, such as figure 2 and 3 As shown, it is connected in parallel with the passive secondary suspension of the railway transport vehicle, and is installed between the bogie and the car body of the railway transport vehicle, including the electromagnet assembly and the electrical equipment electrically connected with the electromagnet assembly, the electromagnet assembly It includes: an iron core 1 for connecting with the bogie end of the railway transport vehicle, an excitation coil 2 wound on the iron core 1, and an armature 3 for connecting with the car body end of the railway transport vehicle.
[0037] In this embodiment, preferably, the electromagnet assembly is arranged at the central axis of the secondary suspension. And further preferably the secondary suspension includes an air spring, the air spring includes an air spring upper cover plate 6, an air spring lower cover plate 5 and an air spring air...
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The invention relates to an active electromagnetic actuator of a railway transport vehicle, which is connected in parallel with the passive secondary suspension of the railway transport vehicle, and is installed between the bogie and the car body of the railway transport vehicle, including an electromagnet assembly and an electromagnetic The electrical equipment for the electrical connection of the iron components, the electromagnet assembly includes: the iron core used to connect with the bogie end of the railway transport vehicle, the excitation coil wound on the iron core, and used to connect with the car body end of the railway transport vehicle the armature. Compared with the prior art, the invention makes full use of the inner space of the air spring, improves the stability index of the vehicle, and improves the safety of the vehicle.
Description
technical field [0001] The invention relates to the field of dynamics and active control of railway transport vehicles, in particular to an active electromagnetic actuator for railway transport vehicles. Background technique [0002] The existing secondary suspension system of railway transport vehicles is usually an air spring, and an emergency rubber pile is usually arranged inside it to ensure the driving safety when the air spring is damaged by an external force and there is no air. However, there are many defects in the existing railway vehicle suspension system, mainly because the suspension system is a passive system, and it is difficult to meet the running stability requirements of the train when it is disturbed by different frequencies of the track only by optimizing its parameters; Secondly, the passive suspension system usually relies on the oil pressure shock absorber to convert vibration energy into heat energy for dissipation, resulting in energy waste. In the...
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IPC IPC(8): B61F5/24
CPCB61F5/245
Inventor 周劲松张展飞宫岛孙煜尤泰文
Owner TONGJI UNIV