Inner rotor direct drive structure of suspended monorail train

Abstract

The invention provides a direct-driven structure of the inner rotor of a suspended monorail train, which comprises a frame of a bogie. The frame of the bogie includes a side frame, a beam, and a center platform of the frame. An air spring and a corbel are arranged on the center platform of the frame. Horizontal pull rods are arranged on the front and rear sides of the bolster, and the bolster is press-fitted on the air spring. The suspension device is a four-bar linkage mechanism; An inner rotor type permanent magnet motor is provided between the horizontal running wheels to provide rotational power for the running wheels. The present invention uses an inner rotor type direct drive motor as the driving device of the bogie, which greatly improves the energy conversion efficiency and reduces The size of the motor and the calorific value of the motor are reduced, the structure of the bogie is simplified, the reliability is increased, the maintenance cost is reduced, and the noise caused by the operation of the bogie is reduced.

Description

technical field [0001] The invention belongs to the technical field of urban rail transit, in particular to an inner rotor direct-driven structure of a suspended monorail train. Background technique [0002] With the continuous acceleration of urbanization in our country, urban traffic problems are facing more and more severe tests. The existing urban public transportation system has been unable to completely solve the problem of traffic congestion in the city. Vigorously developing urban public rail transit is an option to solve the problem of traffic congestion, but the construction cost of the subway is high, the construction period is long, and there are certain requirements for the terrain, and the construction process will cause serious damage to the existing infrastructure of the city. big impact. As a medium-capacity urban rail transit, the suspended monorail can avoid the above problems. [0003] Suspended monorail transportation has the following advantages: sho...

AI Technical Summary

Problems solved by technology

The main problems are: the efficiency of the AC motor is low under the operating condition of low speed

Since the excitation magnetic field is generated by the excitation coil, the size of the motor is relatively large, and the heat is serious, and the gearbox is used for deceleration, which makes the overall structure of the bogie complex and increases maintenance costs. Loss, thus reducing the efficiency of the drive, and the noise is larger when vibrating

[0005] And the longitudinal distance of some suspended monorail guide wheels is too long, which is not conducive to the passage of curves

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