Framework device based on longitudinal motor and novel central pin boss

Abstract

The invention discloses a framework device based on a longitudinal motor and a novel center pin boss, and belongs to the field of railway vehicle bogie framework devices. The device comprises a bidirectional output shaft motor, two anti-snaking shock absorbers, two secondary vertical shock absorbers, two gear boxes and two secondary transverse shock absorbers, and the device is characterized by further comprising two forged piece side beams, a longitudinal motor shell, a center traction base mechanism, two side beam balance connecting rods, four shell side beam connecting columns and a traction base fixing and shock absorbing mechanism; the bidirectional output shaft motor is coaxially and fixedly connected into the longitudinal motor shell, and the two gear boxes 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 gear boxes through bevel gears respectively. A large amount of framework space can be saved, a motor control program can be simplified, the electric energy utilization and conversion efficiency and the control efficiency are improved, and the energy-saving and environment-friendly attributes of a train are enhanced.

Description

technical field [0001] The invention belongs to the field of rail vehicle bogie frame devices, in particular to a frame device based on a longitudinal motor and a novel center pin seat. Background technique [0002] Rail vehicle bogies with traction motors are commonly known as power bogies. Power bogies usually use a two-stage suspension system. The primary suspension device is used for vibration reduction between the axle and the frame, and the secondary suspension device is used to reduce the vibration of the frame. Complex vibrations with the vehicle body. The primary suspension device of the power bogie is usually a conventional press-fit axle box mechanism 16 with a primary steel spring; Rod 11, secondary lateral shock absorber 12 and zigzag fifth wheel etc. known damping and damping devices are formed. [0003] The design of power bogie not only needs to consider the structural strength and damping characteristics of each shock absorber one by one according to the s...

AI Technical Summary

Problems solved by technology

[0012] In order to solve the existing integral casting side beams, it is necessary to design and manufacture special casting molds, and must face large overall mass, many casting defects, high scrap rate, and poor structural strength; box-type weldment side beams will cause complex problems due to welding cooling Distortion, deformation and dimension out-of-tolerance lead to technical problems that must be corrected through heavy and complicated surveying and repairing operations; while the existing dual-motor form of two traction motors fixedly connected to the front and rear of the frame, the motor and gear The positioning accuracy of the box hanger is high, the mechanical design and layout are difficult, the influence of welding deformation is great, 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, resulting in axle boxes. It 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, subject to the old The structural design concept and structural limitations of the bogie, as a mature technology, the two-way output shaft motor has not been applied in the field of power bogie manufacturing; and solving different train design speed requirements or different side beam structures will also affect the primary suspension device. The layout space and structural form of the secondary suspension device have a very large impact. Unreasonable design schemes will prevent the secondary suspension device from achieving the best vibration reduction and damping characteristics, but will strengthen the negative vibration characteristics of the car body and increase The noise of the car body and the fatigue strength of the structure weaken the service life of the electric frame or the motor, and even lead to the technical problem that the secondary suspension device cannot lack flexible installation space due to interference with the Z-shaped fifth wheel and other components. The present invention provides a Frame device based on vertical motor and new center pin seat

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