Drive arrangement and braking system

Abstract

The utility model relates to vehicle technical field, concretely relates to a drive device and braking system, the drive device includes drive component, moving part, transmission part and positioning component, drive component includes stator and rotor, stator has installation cavity, and the rotor rotatablely is located in the installation cavity, and one end of moving part is located in the installation cavity and is connected with the rotor to move under the rotation of the rotor, transmission part includes lead screw and nut, and the rotor has the center hole, and moving part has the positioning cavity and is set to the open mouth, and one end of lead screw is in the center hole interference fit, and the other end of lead screw is fitted in the positioning cavity, and the nut is fitted in the outer periphery of lead screw and is connected with moving part, and the positioning component includes the first positioning ring, and the first positioning ring interference fit is in the outer periphery of the other end of lead screw, and the outer peripheral surface of first positioning ring and the inner peripheral surface of positioning cavity clearance fit, the drive device of the utility model embodiment can reduce the eccentric swing amount of piston, improve user experience, and simple structure.

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