Damping coupling

Abstract

The invention discloses a damping coupling which comprises a flange plate, a driven piece, a disk hub, a damping disk and damping springs, wherein the flange plate is connected with the driven piece through a first rivet; the disk hub consists of a disk hub web plate and a disk hub core plate; a disk hub core at the left side of the disk hub web plate is sleeved with a first damping washer; a disk hub core at the right side of the disk hub web plate is sequentially sleeved with a second damping washer, a positioning washer, a butterfly-shaped spring and a damping disk from left to right; the driven piece, the disk hub web plate and the damping disk are provided with elongated holes in corresponding positions in the circumferential direction; the damping springs are arranged in the elongated holes; the driven piece, the disk hub and the damping disk are connected through a second rivet; and the disk hub can rotate an angle alpha relative to the driven piece and the damping disk. The invention can effectively cut down the gear shift impact of a transmission, reduce adverse effects of the vibration of a transmission system on an electromotor and improve the reliability and the service life of the electromotor and parts of the transmission system.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a vibration-damping coupling used in electric automobiles, which is used for coupling between electric motors and transmissions. Background technique [0002] The connection between the electric motor and the transmission of an electric vehicle generally adopts a rigid coupling, because it does not need to shift gears, there is no impact vibration caused by shifting, and the vibration of the transmission system has less obvious influence on the motor. With the increasingly rich theory of electric vehicles, the transmission is replaced by a two-speed or multi-speed transmission with automatic shifting, and the shifting inevitably produces shocks, and the rigid coupling cannot absorb the vibration generated during work between the electric motor and the transmission Impact; moreover, the vibration of the transmission system itself will also have an adverse effect on the motor, ...

AI Technical Summary

Problems solved by technology

With the increasingly rich theory of electric vehicles, the transmission is replaced by a two-speed or multi-speed transmission with automatic shifting, and the shifting inevitably produces shocks, and the rigid coupling cannot absorb the vibration generated during work between the electric motor and the transmission impact; moreover, the vibration of the transmission system itself will also have an adverse effect on the motor, and will also reduce the reliability and life of the motor and transmission system components

Due to the compact structure of electric vehicles, various types of ordinary elastic couplings cannot be directly selected due to reliability and axial and radial dimensions.

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