Processing method of spiral bevel gears for main reducers of axle housings

Abstract

The invention discloses a processing method of spiral bevel gears for main reducers of axle housings. The processing method comprises the processing methods of driving bevel gears, driven bevel gears and a motor coupling. Wherein the structural design of the driving bevel gears and the driven bevel gears is characterized in that the teeth number ratio of the driving bevel gears and the driven bevel gears is 47 to 11, the module is 4.65, the average pressure angle is 20 degrees and the midpoint helical angle is 35 degrees; and the teeth numbers of the meshed splines of a main teeth engagement sleeve,a main teeth connection sleeve and a motor engagement sleeve of the motor coupling are the same. According to the processing method disclosed by the invention, the structure of the driving bevel gears and the driven bevel gears is designed and the manufacturing procedures of gear milling and gear grinding are adopted to process the driving bevel gears and the driven bevel gears respectively, so that the processing operation is simple. In addition, the precision of the processed gears and the motor coupling is high, the engagement effect is good, the high strength of the gears is ensured and the noise of the gears in transmission is lowered.

Description

technical field [0001] The invention relates to the field of urban electric bus deceleration systems, in particular to a processing method for a spiral bevel gear and a motor coupling on the main reducer of an axle housing. Background technique [0002] The spiral bevel gear of the main reducer of the axle housing includes an active bevel gear and a passive bevel gear. The motor drives the active bevel gear to rotate, the active bevel gear drives the passive bevel gear to rotate, the passive bevel gear drives the half shaft gear to rotate, and the inner spline of the half shaft gear It is directly connected with the half shaft to drive the wheel to rotate. The active bevel gear and the passive bevel gear mesh with each other for transmission, so the degree of meshing between the active and passive bevel gears is very important. The meshing parameters between the active and passive bevel gears include gear ratio, modulus, average pressure angle and midpoint Helix angle, the ...

AI Technical Summary

Problems solved by technology

The gear ratio of the active and passive bevel gears currently designed is 41 / 10, the modulus is 3.75, the pressure angle includes 22.5, 20, 19 and other specifications, and the midpoint helix angle includes 50, 45, 35, 30, etc. Specifications, but the design and selection of the existing gear ratio, modulus, average pressure angle and midpoint helix angle lead to insufficient strength of the active and passive bevel gears in production, and the transmission noise is large