Actuator and its transmission mechanism

A technology of an actuator and a transmission mechanism, which is used in electromechanical devices, electric components, and mechanical energy control, etc., can solve the problems affecting the strength of the nut and the stopper sleeve, generate noise, and shake the stopper sleeve, so as to strengthen the strength, improve the The effect of shaking and noise reduction
CN109756069BActive Publication Date: 2022-03-18JOHNSON ELECTRIC SHENZHEN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JOHNSON ELECTRIC SHENZHEN
Publication Date
2022-03-18

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Abstract

The present invention provides an actuator and its transmission mechanism. The actuator includes a motor, an actuator and a transmission mechanism arranged between the motor and the actuator. The transmission mechanism includes a main body and an output shaft protruding from the main body. , the output shaft rotates under the drive of the motor, and the output shaft is provided with threads for driving the actuator to move axially along the output shaft, and the actuator further includes at least two arc-shaped A shaft sleeve and a stop sleeve, the at least two arc-shaped sleeves are arranged around the output shaft and spliced ​​to form an annular sleeve located between the main body and the actuator, the annular sleeve and the A gap fit is formed between the output shafts, and the stop sleeve is sleeved on the annular bushing and is interference fit with the annular bushing. The actuator of the invention has low noise and good strength.
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Description

[Technical field]

[0001] The present invention relates to an actuator and its transmission mechanism. 【Background technique】

[0002] The existing actuator includes a motor, a gearbox driven by a motor, and a gearbox, which are arranged in a stop sleeve close to one end of the gearbox of the gearbox, and a nut between the output shaft by a thread. When the output shaft is rotated by the gearbox, the nut moves straight on the output shaft to drive the load movement, such as adjusting the position of the car seat, the position of the headrest, the position of the steering wheel, and the like. However, in such an actuator structure, the stop sleeve is directly in the output shaft, so the stop sleeve and the output shaft have a large gap, and the stop sleeve will be stopped when the output shaft rotates. Shake, generate noise, and cause the nut when moving to the stop sleeve position, due to the stop sleeve skew, the end surface of the nut is not very resistant to the end surface of ...

Claims

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