Motor car axle for low floor bogie

Abstract

The invention discloses a motor car axle for a low floor bogie, which comprises an axle body and a wheel seat which is symmetrically arranged on the two ends of the axle body, two axle necks are respectively arranged on one side of each wheel sat depart from the axle body, two bearing seats are respectively arranged on one side of the wheel seat close to the axle body, annular grooves are all arranged on the external circumference of each bearing seat, a gear box installation interface is arranged on one of the axle necks, and another one axle neck is provided with a brake disc installation interface. The motor car axle for the low floor bogie can save space, can further reduce height of a low floor car, enables the low floor car to more safely and comfortably run, further can greatly improve anti-fatigue ability of the bearing seat, and prolongs service. Furthermore, the motor car axle for the low floor bogie further can reduce strain during the press assembly process of wheels, can conveniently push back the wheels, and is excellent in centering of the wheels after being pressed to assemble.

Description

technical field [0001] The invention relates to a motor vehicle axle, in particular to a motor vehicle axle for a low-floor bogie. Background technique [0002] The motor vehicle axle used for the bogie of low-floor vehicles is the core part of low-floor vehicles and plays an important role in ensuring the safety of vehicle operation. [0003] The low-floor bogie motor vehicle axle is a new type of axle developed and designed according to our company's key project - low-floor tram project. [0004] Since there are few low-floor lines in China at present, there are few researches on the core components of low-floor vehicles. Therefore, it is necessary to conduct an in-depth study on the axle. This patent conducts in-depth research on the characteristics of low-floor vehicles, comprehensively considers the operating characteristics of low-floor vehicles, and designs the motor vehicle axles that meet the application requirements. [0005] The motor car axle in the prior art ...

AI Technical Summary

Problems solved by technology

[0006] 1. The bearing seat of the existing motor vehicle axle has poor fatigue resistance. Due to the poor line conditions of the low-floor vehicle, the bearing seat is subjected to severe stress, and the bearing seat is prone to fatigue cracks. Fatigue cracks in the bearing seat may cause the bearing seat to break , endangering the driving safety of the vehicle

[0007] 2. The gearbox and brake disc seat of the existing axle are installed on the axle body of the axle, so that the installation space of the axle body of the low-floor axle is limited, which will interfere with the frame, and the height of the frame from the rail surface will increase

[0008] 3. In the prior art, the wheel seat and the wheel are cylindrically fitted, which is prone to strain during the press-fitting process, and it is inconvenient to remove the wheel, and the press-fitted wheel is also prone to misalignment

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