Rolling needle roller block type automobile differential characterized by arbitrary tooth difference internal cam shock waves

Abstract

The invention discloses a rolling needle roller block type automobile differential characterized by arbitrary tooth difference internal cam shock waves, belongs to the technical field of mechanical transmission and provides a novel automobile differential. According to the automobile differential, a straight tooth bevel gear is arranged outside an external tooth inner multiphase internal cam, a multiphase internal cam is arranged in the external tooth inner multiphase internal cam, and rolling needle roller blocks are in multi-tooth meshing with the external tooth inner multiphase internal cam, a left half shaft frame and a right half shaft center wheel and are in rolling contact connection; power is input through the bevel gear outside the external tooth inner multiphase internal cam and transmitted to the rolling needle roller blocks through the external tooth inner multiphase internal cam, and the rolling needle roller blocks transmit the power to the left half shaft frame fixedly connected with a left wheel and the right half shaft center wheel fixedly connected with a right wheel, so that the differential speed of the left wheel and the right wheel is realized. According to the automobile differential, a planetary gear system in a conventional automobile differential is omitted, the structure is compact, the size is small, the weight is light, multi-tooth meshing is adopted, the contact ratio is large, the bearing capability is high, the transmission efficiency is high, and the automobile differential can be widely applied to various wheeled vehicles, such as automobiles, engineering vehicles and the like, requiring differentials.

Description

technical field [0001] The invention relates to a cam shock wave needle roller block type automobile differential with arbitrary tooth difference, which is used for the differential speed of wheeled vehicles and belongs to the technical field of mechanical transmission. Background technique [0002] At present, the commonly used automotive differentials use a planetary gear system composed of multiple straight-toothed bevel gears to achieve the purpose of differential speed. Although this system can realize the differential speed of the left and right axle shafts of the car, there are many components in the system. , large axial and radial dimensions, large volume, and heavy weight, especially for heavy-duty vehicles, in order to achieve differential speed and transmit sufficient power, the volume and weight will further increase; straight bevel gear transmission is also It has the disadvantages of low coincidence, low bearing capacity, low transmission efficiency, difficult...

AI Technical Summary

Problems solved by technology

[0002] At present, the commonly used automotive differentials use a planetary gear system composed of multiple straight-toothed bevel gears to achieve the purpose of differential speed. Although this system can realize the differential speed of the left and right axle shafts of the car, there are many components in the system. , large axial and radial dimensions, large volume, and heavy weight, especially for heavy-duty vehicles, in order to achieve differential speed and transmit sufficient power, the volume and weight will further increase; straight bevel gear transmission is also It has the disadvantages of low coincidence, low load capacity, low transmission efficiency, difficult processing of straight bevel gears, and poor manufacturability.

Images