Megawatt ten-shunt wind power generation speed increasing box

Abstract

The invention relates to a megawatt ten-shunt wind power generation speed increasing box, which relates to the technical field of wind power generation speed increase and is a fixed shaft type multi-shunt speed increasing box using a fixed shaft driving theory as a basis and a moving shaft planet structure as a framework. The speed increasing box comprises a machine base, an input shaft, a ring gear, a duplex gear, a sun gear and a third stage speed increasing gear pair, and is characterized in that two intermediate gears are arranged between a center shaft gear of the duplex gear and the ring gear, and five shunts are divided between a driving gear and a center shaft gear sleeve, thus (2*5) ten shunts are formed. The megawatt ten-shunt wind power generation speed increasing box has the following advantages that: (1) the weight is 35 to 45 percent lighter than that of the prior product, and the shape is reduced by 40 to 50 percent; (2) a single piece is light and is convenient to assemble, disassemble and maintain; and (3) a gear slotting machine and a gear grinding machine made in China can process 5 MW model gears, and thus the manufacturing cost is greatly reduced.

Description

[technical field] [0001] The invention relates to the technical field of wind power speed-up, and relates to a megawatt-level ten-current wind power speed-up box. [Background technique] [0002] Wind energy is an inexhaustible, non-polluting, renewable energy source. It is predicted that by 2020, wind power will become the third largest energy source in my country, so there is a huge market of tens of billions of wind power gearboxes. Wind power gearbox is one of the three core technologies of wind turbines, and the current mainstream models in the world are 1.5-2MW. Since the wind power gearbox is located in a harsh environment and at an altitude of 60 to 70 meters in remote areas, strict requirements are put forward for the gearbox: the service life is 20 years, the bearing life is 130,000 hours, it is as small as possible and light as possible, and it is easy to assemble, disassemble and maintain. Several large enterprises in China have successively obtained the followi...

AI Technical Summary

Problems solved by technology

The biggest disadvantage of the connectors is the poor mechanical strength, which increases the processing error and installation error. In addition, the temperature difference between the connectors and the deformation caused by different forces are not the same.

Due to the inability to adopt oblique internal teeth + cementite fire + grinding technology like large foreign companies, there is a big gap between our products and them

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