Framework apparatus based on novel primary suspension and longitudinal motor

Abstract

The invention discloses a framework apparatus based on a novel primary suspension and a longitudinal motor, and belongs to the field of framework apparatuses of railway vehicle power bogies. The apparatus comprises a bidirectional output shaft motor, four primary steel springs, four primary vertical shock absorbers, two gearboxes, two forged piece side beams, a longitudinal motor shell, four wheelset built-in primary suspension axle box devices, two side beam balance connecting rods and four shell side beam connecting columns; the bidirectional output shaft motor is coaxially and fixedly connected in the longitudinal motor shell, and the two gearboxes are rotationally and symmetrically arranged at the two ends of the longitudinal motor shell; and the front output end and the rear output end of the bidirectional output shaft motor are in transmission connection with the corresponding gearboxes through bevel gears respectively. A large amount of framework space can be saved, so that thecompact layout of the wheel set built-in primary suspension axle box devices is implemented, the control difficulty of synchronously controlling two motors is reduced, the motor control program is simplified, the electric energy utilization and conversion efficiency and the control efficiency are improved, and the energy-saving and environment-friendly properties of a train are enhanced.

Description

technical field [0001] The invention belongs to the field of frame devices for rail vehicle power bogies, and in particular relates to a frame device based on a novel primary suspension and a longitudinal motor. Background technique [0002] Rail vehicle bogies with traction motors are commonly referred to as power bogies. It is not only necessary to comprehensively consider the structural strength and flexibility of the frame as the main body of the load, and the effects of various auxiliary vibration damping components such as anti-snake shock absorbers in the design. , brake mechanism installation method and other comprehensive factors, it is also necessary to comprehensively design the suspension method of the motor of the power bogie according to the theoretical speed of the train, the bearing load, the minimum curve curvature and the road conditions such as wind, snow and flying stones according to the requirements of different models. , the placement position of the a...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the existing integral casting side beams, it is necessary to design and manufacture special casting molds, and must face many problems such as large overall mass, many casting defects, high scrap rate, and poor structural strength; the side beams of box-shaped weldments will be damaged due to welding cooling It causes complex distortion and dimension out-of-tolerance, which leads to the technical problems that must be corrected through heavy and complicated surveying and repairing operations; while the existing dual-motor form with two traction motors fixedly connected to the front and rear of the frame, its The positioning accuracy of the motor and gearbox hanger is high, the mechanical design and layout are difficult, the welding deformation is greatly affected, and it also occupies most of the space inside the conventional frame, resulting in the lack of sufficient axle box layout space inside the bogie of the prior art. As a result, the axle box can only be arranged at the two ends of the axle, which not only increases the risk of damage to the axle box, but also increases the overall structural size and turning radius of the bogie, which is not conducive to the improvement of its minimum curve passing ability; and, it is restricted Due to the structural design concept and structural limitations of the old bogies, the two-way output shaft motor as a mature technology has not been applied in the field of power bogie manufacturing; The layout space and structural form of the primary and secondary suspension devices have a very large impact, which often leads to the technical problem that the layout scheme of the old primary / secondary suspension devices cannot meet the requirements of the installation position and vibration reduction indicators. The invention provides a frame device based on a new primary suspension and a vertical motor

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