Johnson Electric S.a.

Johnson Medtech (hk) Limited

Hua Hu

Mohanlal Ramadoss

Thomas Roschke

Carl Henric Andreas Svensson

Yuefu Zhu

Xiaowen Xian

A transmission includes a transmission case provided with an internal gear an inner wall thereof and a multistage planetary gear mechanism housed in the transmission case. Each stage of the multistage planetary gear mechanism includes a retainer, a sun gear and a plurality of planetary gears mounted on the retainer. The plurality of the planetary gears in the last planetary gear stage of the multistage planetary gear mechanism includes four planetary gears annularly arranged between the corresponding sun gear and the inner gear in an uneven manner.

Transmission, and powered actuator using the same

A planetary gear transmission has a gearbox, multiple stages of planetary gears, and an output shaft. Except for the last stage, each planetary gear stage shares a common first internal gear ring. Each stage has a sun gear, a planet carrier, and multiple planet gears. The sun gear of each stage, except for the first stage is integrally formed with or fixed to the planet carrier of an immediately preceding stage. The last stage of the transmission has a second internal gear ring. The planet gears of the last stage mesh with the second internal gear ring. The second internal gear ring includes a support portion, and the output shaft passes through and is rotatably supported by the support portion.

Planetary gear transmission

Growing community of inventors

Shenzhen, China

Hua Hu