Guangdong Zhaoqing L&v Co. Ltd.

Qingchun Yang

Yuan Jiang

Xianghuai Qiu

Hongyu Gong

Disclosed is a planetary gear transmission box, comprising a housing portion, a first planetary gear transmission stage, and a second planetary gear transmission stage, wherein the first planetary gear transmission stage comprises a first sun gear (), a first planetary carrier (), and a first ring gear; the second planetary gear transmission stage comprises a second sun gear, a second planetary carrier (), and a second ring gear (); the first sun gear () is connected to an external input element; the first planetary carrier () is connected to the second sun gear; the second planetary carrier () is connected to an output element; the transmission ratio of the gear transmission box is greater than 25; and the second planetary carrier () is directly supported on the housing portion. The locked rotor torque of the gear box is increased, such that the output rotational speed is reduced, and thus a bearing member at the output end can be omitted.

Planetary gear transmission box

The present application relates to a planet carrier assembly for a vehicle door closing actuator. The planet carrier assembly comprises a plurality of planetary gears and a planet carrier body. The planet carrier body comprises a disc portion, a cover portion and an output shaft portion, wherein the plurality of planetary gears are rotatably mounted on the disc portion via a corresponding number of mounting shafts fixed to the disc portion, one end of the mounting shaft protruding from a central hole of the planetary gear is pressed into a corresponding receiving hole on the cover portion, and the planet carrier body is further provided with a rotation locking device to prevent the cover portion from rotating circumferentially relative to the disc portion. The planet carrier assembly according to the present application has the advantages such as low cost, high strength, and simple assembly.

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Guangdong, China

Qingchun Yang