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Electric parking actuator applied to drum brake

A technology of drum brakes and actuators, applied in the direction of brakes, brake transmissions, vehicle components, etc., can solve the problems of laborious operation and inability to ensure the consistency of parking force, and achieve the effect of safe and reliable parking

Pending Publication Date: 2021-08-10
上海众持汽车零部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the existing parking operating devices for vehicle drum brakes are manually operated by wire cables, the braking force is related to the operating force, and the operation is laborious, which cannot guarantee the consistency of the parking force

Method used

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  • Electric parking actuator applied to drum brake
  • Electric parking actuator applied to drum brake

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Embodiment

[0019] Example: such as Figure 1-2 As shown, the present invention provides an electric parking actuator applied to drum brakes, which includes an upper housing 1 and a lower housing 2, and a worm gear nut assembly 4 is rotatably connected to the inner surface of the lower housing 2 through a bearing 3. The internal thread of the worm wheel nut assembly 4 is connected with a screw 5, and the bottom end of the screw 5 is riveted with a steel wire cable 6, and the bottom end of the lower housing 2 and the outer surface of the steel cable 6 are provided with a sealing cover 7, and the upper The inside of the housing 1 is equipped with a motor 8, the output end of the motor 8 is fixedly connected with a worm 9, and one end of the worm 9 rotates inside the upper housing 1 through a sliding bearing 14, and the surface of the worm 9 and the surface of the worm gear nut assembly 4 The motor 8, the worm 9, the worm wheel nut assembly 4 and the screw 5 can drive the wire cable 6 to com...

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Abstract

The invention discloses an electric parking actuator applied to a drum brake. The electric parking actuator comprises an upper shell and a lower shell, the upper portion of the inner surface of the lower shell is rotationally connected with a worm gear nut assembly through a bearing, the interior of the worm gear nut assembly is in threaded connection with a lead screw, and a steel wire inhaul cable is riveted to the bottom end of the lead screw; a sealing cover is arranged at the bottom end of the lower shell and located on the outer surface of the steel wire inhaul cable, a motor is installed in the upper shell, the output end of the motor is fixedly connected with a worm, one end of the worm rotates in the upper shell through a sliding bearing, and the surface of the worm is meshed with the surface of a worm gear nut assembly. Through cooperation of the motor, the worm, the worm gear nut assembly and the lead screw, the steel wire inhaul cable can be driven to complete the parking locking function, the motor rotates reversely to complete the parking unlocking function, and it can be guaranteed that parking is safe and reliable.

Description

technical field [0001] The invention relates to the technical field of drum brakes for vehicles, in particular to an electric parking actuator applied to drum brakes. Background technique [0002] Drum brakes: Drum brakes are also called block brakes, which are achieved by pressing the brake blocks on the brake wheels; drum brakes are also called block brakes, which rely on the brake blocks on the brake wheels Brakes are achieved by pressing on the top; drum brakes are an early design of the braking system. [0003] Most of the existing parking operating devices of vehicle drum brakes are manually operated by wire cables, the braking force is related to the operating force, the operation is laborious, and the consistency of the parking force cannot be guaranteed. Contents of the invention [0004] The object of the present invention is to provide an electric parking actuator applied to a drum brake, so as to solve the problems raised in the above-mentioned background tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/74
CPCB60T13/746
Inventor 苏永胜王晓辉黄健
Owner 上海众持汽车零部件有限公司
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