High power locomotive transmission device

Abstract

The invention provides a high power locomotive transmission device, including a bull gear fixing sheathing on an axle and a gear box installed on the outside of the bull gear. A pinion is meshed with the bull gear, the pinion limits the axial position with the bull gear by a limiting device, and the limiting device and the bull gear are in sliding contact. According to the transmission device provided by the invention, the pinion limits the axial position with the bull gear by the limiting device; the limiting device withstands the axial force, which is supposed to be withstood by the pinion shaft and a motor shaft support position; the axial force is withstood by bull gear through the limiting device, and the bull gear is directly sheathed to the axle; and contact of the wheel set and the wheel rail, larger axial force can be to withstood. Therefore, the transmission device provided in the invention can avoid the axial force on the pinion shaft and motor shaft support position, and has improved ability to withstand the axial force, so that it is possible to use helical gear with larger helical angle.

Description

technical field [0001] The invention relates to the technical field of rail transit locomotive driving devices, in particular to a high-power locomotive transmission device. Background technique [0002] The driving device is the core part of the locomotive. Whether the driving device can work normally is related to the running quality of the locomotive. At present, the driving device of low-speed and high-power locomotives basically adopts the axle-holding suspension method, especially for high-power freight locomotives with a speed of less than 120km / h. . The shaft-holding suspension driving device mostly adopts one-stage gear transmission, and the arrangement of the pinion is very important. The pinion can be arranged in a cantilever beam structure. This arrangement causes the pinion shaft and the motor bearing to be subjected to a huge bending moment when the pinion transmits the load, which is not conducive to the smooth transmission of the load, and the tooth directio...

AI Technical Summary

Problems solved by technology

The usual practice is to set a deep groove ball bearing capable of bearing axial force at the support on one side of the pinion, but the structure is complex, the cost is high, and the axial load capacity of the ball bearing is limited, so it is impossible to use a helix with a large helix angle. Gears, which limit the improvement of the load-carrying capacity of helical gears

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