Disadvantages of old traction motors


One of the reasons why the traction motor uses a complicated structure is to minimize the impact force acting on the traction motor. The traction motor is mounted on a bogie frame with minimal impact, and a damping spring is placed between the wheelset and the bogie frame. This results in a state in which the traction motor and the wheel pair are respectively operated, so that a flexible coupling must be incorporated between the two to achieve the purpose of absorbing the up and down vibration of the gear device and the bogie frame. Another reason is that in order to reduce the size and weight of the traction motor, the decanter centrifuge has to make the speed of the traction motor higher than the wheel speed. Therefore, a reduction gear device is required between the two. The traction motor is a high-speed, low-torque motor, and the reduction gear will act to amplify the torque of the traction motor. Due to the aforementioned advantages, various reduction gear arrangements and flexible couplings (generally referred to as cardan shaft drive modes) are added between the traction motor and the wheel pair, and long-term applications are obtained. Problems in the conventional method and the characteristics of the traction motor integrated with the wheel In the driving method using the aforementioned reduction gear device, there are various problems as follows: (1) maintenance and repair for gear wear and oil aging; (2) diesel flow The noise generated by the gear unit and the flexible coupling; (3) the power loss caused by the gear unit and the flexible coupling; (4) the space required to mount the gear unit and the added weight for this purpose. The basic structure of the traction motor integrated with the wheel at the research stage, the traction motor integrated with the wheel is not only a device for directly connecting the traction motor and the wheel, but also omitting the reduction gear, and also to solve the conventional A new product developed in the manner in which the aforementioned problems occurred.

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