Hydraulic braking device of wind turbine generator

• Main Authors: ZHAO YALI, SHIN JUNG MOO, XU LIJIE, KANG HUSHENG, WANG WEIMIN, ZHOU HUI, PENG XIAOYAN, CHENG HAIBO, WEI JUNQIANG, XIN CHAOHONG, LING KUANG, SONG CHENGXIANG, YANG YI, YANG FENG
• Format: Patent
• Language: Chinese; English
• Published: 18.11.2022
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; WEAPONS; WIND MOTORS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

The utility model discloses a hydraulic braking device of a wind turbine generator. The hydraulic braking device comprises an oil pump, a pressure reducing valve, a first electromagnetic valve, a throttling valve, two main shaft braking oil cylinders, an external oil tank and a second electromagnetic valve, the oil pump is in pipeline connection with the first electromagnetic valve through the pressure reducing valve, a first one-way valve is arranged on a connecting pipeline of the oil pump and the pressure reducing valve, and a second one-way valve and an orifice plug are arranged on a connecting pipeline of the pressure reducing valve and the first electromagnetic valve; the first electromagnetic valve is connected with an oil cylinder pipeline through a throttling valve; the oil cylinder is connected with an external oil tank pipeline through a second electromagnetic valve. The hydraulic system has the beneficial effects that the pressure reducing valve is adopted, when hydraulic oil in a pipeline exceeds