Transmission mechanism of an integrated cable-type electronic parking brake

Abstract

The invention relates to a transmission mechanism of an integral type pull-rope type electronic parking brake, comprising a motor. The motor is arranged on a motor installing cover which carries out matching and positioning with an installing shell of a speed reducing mechanism by via an inner ring surface of the motor installing cover; the motor is connected with a motor gear shaft which is matched with two speed reducing gears by a gear; the two speed reducing gears are connected by a spline and are fixed with two speed reducing gear shafts; the two speed reducing gear shafts are matched with four speed reducing gears which are connected by splines and are fixed with a screw shaft; the right end of the screw shaft is connected with a special nut by saw-toothed inner threads; the right end of the special nut is connected with a pull rope head connector by threads; and the outer assembling surface of the special nut is matched with an inner hole of the pull rope limiting mechanism by clearance fit. In the transmission mechanism, the motor is used for replacing mechanical operation, faster and more convenient parking braking is provided, and automatic control is easily realized.

Description

technical field [0001] The invention relates to an automobile parking brake device, in particular to a transmission mechanism of an integrated cable type electronic parking brake. Background technique [0002] At present, the parking brake of most cars mostly adopts the manual parking brake, and its disadvantages are as follows: 1. The hand brake needs to be pulled after parking, which increases the labor intensity of the driver, and it is a physical effort for female drivers. Second, when starting on a slope, it is necessary to rely on the driver to operate the hand brake, accelerator, and clutch correctly at the same time to start smoothly, which increases the difficulty of driving; third, when parking on a slope, if the hand brake is not in place , the car may run backwards on the ramp, causing an accident; four, the handbrake operating handle affects the cab space, and the handbrake pull wire is arranged relatively long, which is difficult to arrange. [0003] With the ...

AI Technical Summary

Problems solved by technology

[0002] At present, the parking brake of most cars mostly adopts the manual parking brake, and its disadvantages are as follows: 1. The hand brake needs to be pulled after parking, which increases the labor intensity of the driver, and it is a physical effort for female drivers. Second, when starting on a slope, it is necessary to rely on the driver to operate the hand brake, accelerator, and clutch correctly at the same time to start smoothly, which increases the difficulty of driving; third, when parking on a slope, if the hand brake is not in place , the car may drive backwards on the ramp, causing an accident; 4. The handbrake operating handle affects the space of the cab, and the layout of the handbrake cable is relatively long, which is difficult to arrange.

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