Electromechanical parking brake cylinder and brake system

Abstract

The invention provides an electromechanical parking brake cylinder and a brake system. The electromechanical parking brake cylinder comprises a cylinder body assembly which is provided with a channel;a transmission assembly is located in the cylinder body assembly and comprises a transmission lead screw, and the transmission lead screw is connected with the cylinder body assembly in a relative movement mode; the transmission nut is in transmission connection with the transmission lead screw, the transmission nut penetrates through the channel, and the transmission nut is in relative movementconnection with the channel; the elastic assembly is located in the cylinder body assembly, the outer side of the transmission lead screw is sleeved with the elastic assembly, the elastic assembly acts on the transmission lead screw, and the elastic assembly is connected with the transmission nut in a relatively rotating mode; the electromagnetic clutch is connected with the transmission nut and the cylinder body assembly; and the transmission shaft is connected with the transmission nut through the overrunning clutch. According to the electromechanical parking brake cylinder provided by the invention, energy can be automatically output for parking brake when power is lost; the parking brake cylinder is compact in structure and small in occupied vehicle bottom space.

Description

technical field [0001] The invention belongs to the field of rail train brakes, in particular to an electromechanical parking brake cylinder and a brake system. Background technique [0002] Due to the current development trend of intelligentization, networking, light weight and miniaturization of rail trains, the demand for electromechanical brake cylinders is becoming more and more extensive. However, the existing electromechanical brake cylinders do not have the parking function, and the traditional parking brake cylinders cannot meet the requirements. [0003] Second, refer to the attached figure 1 , is the existing pneumatic or hydraulic brake cylinder with parking brake cylinder, including pneumatic or hydraulic brake cylinder 1', parking brake cylinder 2' and wedge body 3', the transmission of pneumatic or hydraulic brake cylinder 1' The structure and the transmission structure of the parking brake cylinder 2' are vertically connected vertically through the wedge-sh...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problem that the existing electromechanical brake cylinder does not have the parking function and the existing parking brake cylinder cannot be applied to the electromechanical brake cylinder, the present invention provides a parking brake cylinder, which is suitable for electromechanical braking The cylinder can automatically output energy for parking braking when power is off, meeting the needs of intelligent and networked rail trains; and the parking brake cylinder provided by the present invention has a compact structure, occupies a small space at the bottom of the vehicle, and meets the requirements of lightweight rail trains. need

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