Motor direct-driving bogie

Abstract

The invention relates to a motor direct-driving bogie comprising a framework, wherein the framework is provided with a traction device, a foundation brake device, a secondary spring and a wheel set driving system; the wheel set driving system comprises a driving motor, an axle passing through a central hole formed in the driving motor and two wheels arranged at two sides of the axle; the framework comprises side beams located at two sides and a beam fixedly connected with the side beams located at two sides, and the bottoms of the side beams are fixedly provided with supporting plates; and the foundation brake device is fixedly arranged on the supporting plates and the side beams. By using the motor direct-driving bogie, a wheel set is directly driven by the motor, and a gearbox and a shaft coupling are not needed to be mounted, so that the weight of the driving system is greatly reduced, the energy utilization efficiency is increased, and the noise under a vehicle is reduced. Due to the adoption of a fixing way of the foundation brake device, the load of the beam is reduced, and the stress of the framework is more reasonable.

Description

technical field [0001] The invention relates to a bogie, in particular to a motor direct drive bogie. Background technique [0002] The wheel-set drive system is one of the most important parts of the train bogie. The torque generated by the motor drives the wheel-set axle, which is the source of traction power for the train. At present, limited by the structural space and the weight of the motor itself, the motor rotates at a high speed and generates a small torque, while the wheel set rotates at a low speed and requires a large driving torque. This contradiction is solved by the gear transmission system; the gear box pinion It is connected with the output shaft of the motor, and the large gear is installed on the axle of the wheel set. The small torque generated by the motor is amplified by the reduction gear transmission system and then directly drives the wheel set; due to the addition of a gear transmission system, the structural cost and the maintenance cycle of the wh...

AI Technical Summary

Problems solved by technology

At present, limited by the structural space and the weight of the motor itself, the motor rotates at a high speed and generates a small torque, while the wheel set rotates at a low speed and requires a large driving torque. This contradiction is solved by the gear transmission system; the gear box pinion It is connected with the output shaft of the motor, and the large gear is installed on the axle of the wheel set. The small torque generated by the motor is amplified by the reduction gear transmission system and then directly drives the wheel set; due to the addition of a gear transmission system, the structural cost and the maintenance cycle of the whole life The cost increases, the transmission efficiency is reduced, the noise is increased, and the wheelbase of the bogie is increased, which affects the curve passing performance of the train

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