Simple large reversal resistant lifting gear reducer of automobile seat

Abstract

The invention discloses a simple large reversal resistant lifting gear reducer of an automobile seat. The lifting gear reducer comprises a case cover (1), an output gear (2), a planetary gear (4), a cross sliding plate (5), a chute ring (6), an off-axis turbine (7), a rotatory shaft (9) and a gear box (10). By adopting the device composed of the components, during working, a motor drives the off-axis turbine to rotate through a worm to conduct turbine speed reduction movements, and the off-axis turbine drives the planetary gear to conduct small tooth difference speed reduction movements along inner teeth of the output gear; when the output gear tends to reverse under the effect of external force, the cross sliding plate having extremely high self-locking ability for resisting reverse high torque and a mechanism of the chute ring stop the planetary gear from generating reversal; and by combining the technical scheme of turbine speed reduction, the cross sliding plate and a self-locking mechanism resistant to reverse high torque of the chute ring, and large speed ratio of small tooth difference speed reduction, the lifting gear reducer of the automobile seat realizes the purposes of simple structure, low cost and high self-locking ability for resisting the reverse high torque.

Description

technical field [0001] The invention relates to a deceleration device for a micro-motor, in particular to a simple anti-big reversal lifting reducer for a car seat lifting motor for deceleration and boosting. Background technique [0002] The lifting of the car seat is driven by a permanent magnet DC micro-motor through a reducer with deceleration and boosting force. The reducer used for lifting and lowering the car seat will be referred to as the lifting reducer below. Since the lifting reducer requires a large reduction speed ratio, it is therefore , the lifting reducer in the prior art adopts the following two types, one is a planetary gear reducer, and the other is a reducer with a small tooth difference; among them, the planetary gear reducer has a complex structure and poor self-locking ability against large reverse torque, An additional locking clutch device is required to cooperate with the work, and the cost is high; the structure of the small-tooth difference reduc...

AI Technical Summary

Problems solved by technology

[0002] The lifting of the car seat is driven by a permanent magnet DC micro-motor through a reducer with deceleration and boosting force. The reducer used for lifting and lowering the car seat will be referred to as the lifting reducer below. Since the lifting reducer requires a large reduction speed ratio, it is therefore , the lifting reducer in the prior art adopts the following two types, one is a planetary gear reducer, and the other is a reducer with a small tooth difference; among them, the planetary gear reducer has a complex structure and poor self-locking ability against large reverse torque, An additional locking clutch device is required to cooperate with the work, and the cost is high; the structure of the small-tooth difference reducer is relatively simple, but the self-locking ability against large reverse torque is also weak, and an additional locking clutch device is also required to cooperate with the work; therefore, the existing technology has complex structures, Problems and deficiencies of poor self-locking ability against reverse large torque and high cost

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