Framework apparatus based on novel damping structure

Abstract

The invention discloses a framework apparatus based on a novel damping structure, and belongs to the field of framework devices of railway vehicle power bogies. The apparatus comprises a bidirectionaloutput shaft motor, four primary steel springs, four primary vertical dampers, two anti-snaking dampers, two secondary vertical dampers, two gear boxes, two forged piece side beams, a longitudinally-arranged motor shell, two side beam balance connecting rods, two combined connecting seats, four wheel set built-in primary suspension axle box devices, an n-shaped anti-side-rolling torsion bar mechanism and four shell side beam connecting columns. According to the invention, a large amount of framework space can be saved, the compact layout of the wheel set built-in primary suspension axle box devices is implemented, the programming difficulty of synchronously controlling two motors is reduced, the motor control program is simplified, the electric energy utilization and conversion efficiencyand 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 vibration-absorbing structure. Background technique [0002] Rail vehicle bogies with traction motors are commonly called power bogies. Power bogies usually adopt a two-stage suspension system. The first suspension device is composed of a series of steel springs 9 and a series of vertical shock absorbers 10; The main structure of the suspension device is composed of an anti-snaking shock absorber 11, a secondary vertical shock absorber 12 and an anti-rolling torsion bar 13. The design of power bogie not only needs to comprehensively consider the structural strength and flexibility of the main body of the load-bearing frame, the effect of various auxiliary damping components such as anti-snake dampers, and the installation method of the braking mechanism, but also needs to be aimed at According to the requireme...

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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 vibration-absorbing structure

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