Automobile speed variator of arc teeth cylindrical gear pair transmission

Abstract

The invention provides an automobile transmission which is transmitted by an arc cylindrical gear pair, belonging to the mechanical transmission technical field. The automobile transmission comprises a shell, a first shaft, a second shaft and a middle shaft which are arranged in the shell, and gears arranged on the shafts. The invention is characterized in that: the automobile transmission adopts the arc cylindrical gears with a tooth trace being an arc line, a tooth profile being an involute curve or an arc, and equal width of circumferential tooth space at reference circles of the gears. The automobile transmission has the advantages of scientific and reasonable structure, simpleness and compactness, easy production-manufacturing, low installation requirement and high transmission efficiency. Motion transmission is carried out through the arc cylindrical gear pair, speed variation is realized through the gear ratio of a driving arc cylindrical gear and a driven arc cylindrical gear, and a driven shaft outputs velocity, so that the aim of non axial transmission force component when the gears are meshed, large overlap coefficient, good teeth contact strength, smooth transmission and low noise can be achieved. The automobile transmission by using the arc cylindrical gears has higher transmission efficiency, longer service life and lower transmission noise.

Description

technical field [0001] The invention relates to a structure of an automobile transmission, which is an automobile transmission based on a spiral spur gear and belongs to the technical field of mechanical transmission. Background technique [0002] Most of the existing truck transmissions and passenger car transmissions adopt traditional gear transmission transmission mechanisms, which have three to five or more forward gears, a neutral gear and a reverse gear. It is mainly composed of a housing, a first Shaft, constant mesh gear, second shaft, intermediate shaft, reverse gear, etc. The cylindrical gears generally adopt helical cylindrical gears or spur gears. The disadvantages of the automotive transmission using spur gears are low strength, poor durability, and high noise; the disadvantages of automotive transmissions using helical gears are that the strength of the cylindrical gears is low, and there is a large axial separation when the gear pairs mesh. The supporting me...

AI Technical Summary

Problems solved by technology

The disadvantages of the automotive transmission using spur gears are low strength, poor durability, and high noise; the disadvantages of automotive transmissions using helical gears are that the strength of the cylindrical gears is low, and there is a large axial separation when the gear pairs mesh. The supporting mechanism of the transmission shaft is complex; when the car is running on abnormal road conditions, the transmission is prone to premature damage, which shortens its service life

Images