Dual-rotor excitation combination retarder

Abstract

The invention relates to the technical field of automobile part equipment, and especially relates to a dual-rotor excitation combination retarder. The dual-rotor excitation combination retarder provided by the invention comprises a rotation shaft, a permanent magnetic subunit and an electro-excitation subunit. The permanent magnetic subunit comprises an outer stator core and an outer rotor core fixedly connected with the rotation shaft. The outer rotor core is equipped with a permanent magnet corresponding to the outer stator core. The intersection area of the permanent magnet and the outer stator core can be adjusted to change the magnetic flux of a stator, thereby adjusting a brake torque. The electro-excitation subunit comprises an inner stator core and an inner rotor core fixedly connected with the rotation shaft. An electro-excitation coil is arranged on the inner rotor core. The access current of the electro-excitation coil can be adjusted to realize stepless adjustment of the brake torque. According to the retarder, the permanent magnetic subunit and the electro-excitation subunit are combined; through adoption of dual-rotor brake, the action response is fast; electromagnetism and heat load in relatively large ranges can be selected; and further the power density and braking efficiency of the retarder are greatly improved.

Description

technical field [0001] The invention relates to the technical field of auto parts equipment, in particular to a dual-rotor excitation combined retarder, in particular to a dual-rotor excitation combined retarder capable of improving power density and braking performance, and capable of adjusting the braking torque. Background technique [0002] As an important auxiliary braking device for automobiles, the retarder has a significant effect on automobile braking, can reduce the heat decay of wheel brakes, improve the safety and comfort of vehicle driving, and can extend the service life of the braking system, transmission system and tires. Life expectancy, reduce the cost of vehicle use, and improve the environmental protection of automobiles. According to the characteristics of braking operation, there are two main problems in the existing vehicle retarder: on the one hand, compared with the vehicle without auxiliary braking device, the overall mass of the vehicle must increa...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a dual-rotor excitation combined retarder that can improve power density and braking performance, and can adjust the magnitude of the braking torque, so as to solve the problem that the existing retarder cannot adjust the braking torque, which is difficult Considering the problem of braking performance at low speed and high speed

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