Actuating mechanism applied to electronic parking system

The invention discloses an actuating mechanism applied to an electronic parking system. The actuating mechanism comprises a duplicate gear I, a duplicate gear II, a first shell, a second shell, a first positioning pin and an output shaft assembly, the duplicate gear I is installed on a first positioning pin, a first limiting piece is arranged on the first positioning pin, the first limiting pieceis located between the duplicate gear I and the first shell, and the first limiting piece and/or the first positioning pin are/is made of a metal material. According to the actuating mechanism appliedto the electronic parking system, the limiting piece with the large elastic modulus is arranged between the shell and the duplicate gear I, it is guaranteed that no similar impact sound is generatedin a vehicle during parking unlocking, meanwhile, the electronic parking reaction speed is increased, and noise generated by parking unlocking is reduced. 本发明公开了一种应用于电子驻车系统的执行机构，包括双联齿轮Ⅰ、双联齿轮Ⅱ、第一壳体、第二壳体、第一定位销和输出轴总成，双联齿轮Ⅰ安装在第一定位销