Zhejiang Chint Electrics Co., Ltd.

Seari Electric Technology Co., Ltd.

Skf (china) Co Ltd.

Shanghai Noark Electric Co., Ltd.

Hunan Sund Technological Corporation

Dapeng Li

He Zhu

Wei Wang

Jing Zhou

Jeffrey Wei

Shaohua Zhou

Zunyang Bai

Jie Zhu

Xiaofeng Jiang

Weihua Qian

Zhi Yang

Yuan Chen

Bi Luo

Bo Shen

Yabin Zhang

Jiqing Hu

Jinguang Zhu

Xueliang Lu

A wind turbine planet gear shaft has a shaft body with an outer surface, a segment of the outer surface being a slide bearing surface configured to form a radial slide bearing with an inner opening of a planet gear. The slide bearing surface has a first portion configured as a non-load-bearing zone and a second portion configured as a load-bearing zone and exactly one axially elongate oil pocket in the slide bearing surface, that oil pocket being located in the non-load-bearing zone. An oil supply channel in the shaft body has a first end in communication with the oil pocket, and first and second oil return channels in the slide bearing surface each have a first end at a longitudinal end of the oil pocket and a second end open to ambient air.

Wind turbine planet gear shaft and planet gear structure

A fault state indication device for a circuit breaker includes: a contact group; and a transmission assembly and an indication assembly that are mounted inside a housing. The contact group implements a normally open contact group and a normally closed contact group. The transmission assembly acts on a contact support, different open and closed states of the contact group are realized via the contact support. The indication assembly indicates a fault state, the indication assembly is linked with the circuit breaker, and carries out a corresponding state indication in response to a fault.

Fault state indication device for circuit breaker

Growing community of inventors

Shanghai, China

Dapeng Li