Torsion damper gear

Abstract

The invention discloses a torsion damper gear. The torsion damper gear comprises a transmission gear, a transmission shaft, a locknut, a sliding block and a spring, wherein the transmission gear is provided with an axial inner hole; an inner spline is arranged on the hole wall of the inner hole; the right end of the transmission shaft is axially fixed in the inner hole of the transmission gear through a first bearing and a second bearing; the locknut is spirally arranged at the left end of the transmission shaft in a penetrating mode and locked to the left end of the transmission gear; the sliding block is arranged on the transmission shaft in the inner hole in a sleeving mode; an outer spline is arranged on the outer wall of the sliding block; the outer spline is matched with the inner spline so that the sliding block can move in the axial direction of the transmission shaft; the sliding block is stressed to slide along the transmission shaft during deceleration or acceleration; the spring is arranged on the transmission shaft in a sleeving mode and located between the transmission shaft and the sliding block; and the spring absorbs impact force when the sliding block makes contact with the right end of the transmission shaft. Through the torsion damper gear, the problems of insensitivity, impact and abnormal sounds of gearboxes in the transmission process during decelerationand then acceleration are solved.

Description

Technical field [0001] The invention relates to the field of electric gearboxes, and more specifically, to a torque damping gear. Background technique [0002] The power output of the electric motor of a new energy vehicle or hybrid vehicle is transmitted to the wheels through many levels of gears, and there is a certain gap between each gear. Many gears will accumulate a large gap from the input including spline connection to the wheel. Under normal driving conditions, when the car is decelerated and then accelerated, the gap should be eliminated before the normal output power when the reverse force is applied between the gears and then the forward force is applied. At the moment when the gap is eliminated and the power output, there will be frustration, impact, and abnormal noise, which will seriously affect the driving experience and the normal wear of the transmission gear and various connecting parts. The application of the existing ordinary gearbox structure to electric m...

AI Technical Summary

Problems solved by technology

At the moment when the gap is eliminated and the power is output, there will be setbacks, impacts, and abnormal noises, which will seriously affect the driving experience and the normal wear of the gearbox gears and various connecting parts.

The existing ordinary gearbox structure cannot shield this defect when it is applied to electric motor vehicles. Due to the different structures of new energy vehicles of various structures, this defect exists more or less

Images