Automatic gearbox for vehicle gear

Abstract

The invention relates to an automatic gearbox for a vehicle gear. The automatic gearbox is provided with conical gear rows with the number of teeth gradually fluctuated; constant mesh lifting speed multi-gear large speed range can be automatically converted; in the rows of driving and driven gear pairs, the number of teeth of the two adjacent gears is approximate and the rotating speed is approximate so as to realize gear change gently and smoothly; a plurality of circular arc curved surface grooves are formed in an internal hole of a moveable sleeve arrangement output gear on a pipe shaft; the grooves correspond to a group of pin shafts and enter an internal cavity of the pipe shaft; when a moving rod in the internal cavity of the pipe shaft and a linked cam do axial displacement, the cam pushes the group of pin shafts to slide into the grooves of the internal hole of the gear; the output gear is combined with the pipe shaft to drive at the same speed; and the moving rod does forward and backward one-gear or multi-gear displacement under the action of a screw pair or a hydraulic rod, or an internal hole in the cam is adopted to make rolling spiral transmission to be controlled discontinuously or continuously to move a distance so as to realize automatic gear shifting speed change, wherein the pin shaft is combined with the grooves of the internal hole of the gear only by 3 to 4 mm. Due to inertia and the approximate rotating speed of the two adjacent gears, the gear is changed smoothly with comfortable travelling, safety and reliability. The vehicle gear automatic gearbox has double advantages of gear transmission and stepless speed change.

Description

technical field [0001] The car transmission system converts the speed and torque from the power input transmission, and then transmits it to the differential and half shafts to drive the wheels. [0002] An automatic gear transmission for automobiles, which has a conical master-slave gear row with numerous logarithms, a small difference between adjacent speeds and a rise and fall of the highest and lowest speeds up to ten times, which satisfies the best match for various road conditions. [0003] The power is first input into the planetary gear set for forward, reverse or neutral shift, and the spline drive shaft is connected with the planetary carrier of the planetary gear set to form a coaxial type. A row of driving gears is connected to the driving shaft, which is constantly meshing with the output gear row of the looper on a parallel tube shaft. The inner holes of each output gear are made into multiple arc surface grooves, and are supported on their respective bearings. ...

AI Technical Summary

Problems solved by technology

Since the friction force is generated by a huge pressing force, the pressurizing device consumes kinetic energy, the efficiency is low, the life is short, the transmitted power is limited, the transmission temperature rises, and the use cost is high

[0007] The shifting ranges of the above-mentioned various automobile transmissions are small, their matching is not perfect, and the power and economy still need to be improved.

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