Hinge pin type bogie adopting single permanent magnet direct drive motor and double shafts for simultaneously driving urban rail vehicle

Abstract

The invention provides a hinge pin type bogie adopting a single permanent magnet direct drive motor and double shafts for simultaneously driving an urban rail vehicle. The hinge pin type bogie comprises a bogie framework, wherein the bogie framework is composed of side beams and a sleeper beam and integrally forms an H-shaped framework after being mounted, permanent magnet motor mounting holes are formed in the bogie framework, the motor mounting holes are formed in two sides of the sleeper beam, and the motor mounting holes are longitudinally and transversely arranged in a symmetrical manner along the bogie; an air spring mounting base is arranged on the sleeper beam, and the bogie framework is connected with a vehicle body through two air springs; and a permanent magnet direct drive motor is longitudinally arranged below the sleeper beam, outputs torque from two ends, and transmits the torque to a wheel pair through an elastic coupling and a gear box. Due to the adoption of a single-motor frame suspension type structure, the unsprung weight and the overall weight of the bogie are reduced, and the size of the bogie is also reduced; and meanwhile, a face gear is used as a transmission gear, so that the bearing capacity and the transmission stability are improved.

Description

technical field [0001] The invention relates to the field of urban rail transit, in particular to a hinge-pin bogie for an urban rail vehicle driven by a single permanent magnet direct-drive motor with two shafts at the same time. Background technique [0002] With the improvement of people's quality of life, the demand for a good environment has also increased accordingly. Most traditional rail vehicles use AC asynchronous motors to provide traction, but there are many disadvantages such as high noise, low efficiency, high cost, and many faults, which have a great impact on the environment. A new type of motor—permanent magnet motor came into being. The permanent magnet synchronous motor has the characteristics of high efficiency, high power factor, low heat generation, simple structure, small size, and low noise. The technical mode can effectively improve the utilization efficiency of the motor, thereby improving the efficiency of the entire system. [0003] Most of the e...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing urban rail vehicle bogies use dual AC motors to drive two shafts respectively for traction transmission, which increases the space occupied by the traction motors, increases the volume of the bogie, and reduces the overall weight of the bogie. will increase; in addition, how to keep the wheels controlled by the two motors at the same speed is also a difficult problem

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