Composite processing technology for a series of washers for wind power generators and bearings

Abstract

The name of the present invention is a series of washers for wind power generators and bearings and their composite processing technology. The invention belongs to the technical field of grinding of gaskets and gasket parts. It mainly solves existing problems. Its main features are: the gasket is made of 20# steel plate, the surface layer of the gasket with a depth of 0.6~0.9MM is the surface layer with a hardness of 55~62HRC after carburizing and quenching, tempering furnace heat treatment, and the hardness of the core is 28~33HRC; the process is to 20# steel plate is cut into strip-shaped straight material section, stamped, shot peened, outer diameter soft grinding and flat end surface grinding, carburizing and quenching and tempering heat treatment, centerless outer cylindrical grinding, demagnetization cleaning and cleaning anti-corrosion rust. It has the characteristics of less processing steps, low processing cost, high material utilization rate, high production efficiency, and is suitable for mass production. It is mainly used for the processing of series wind turbines and bearing gaskets and their composite processes.

Description

technical field [0001] The invention belongs to the technical field of grinding of gaskets and gasket parts. It specifically relates to a series of gaskets for wind-driven generators and bearings and their composite processing technology, in particular to a series of gaskets for wind-driven generators and their composite processing technology. Background technique [0002] The Sinovel Wind Power Division of Dalian Heavy Industry Crane Group is mainly responsible for the production of 3 MW wind turbines. The output has increased steadily in recent years. In 2011, it plans to produce 2,500 wind turbines. In addition to 1.5 MW wind turbines, Sinovel is now focusing on R&D and production of 3 MW wind turbines, which are currently the mainstream models in the wind power market. A 3 MW wind turbine uses 4 yaw drives and 3 pitch drives. At present, the components of Sinovel's first batch of 3 MW units mainly rely on imports. There are 36 washers with 5 specifications in the yaw ...

AI Technical Summary

Problems solved by technology

[0007]C. The wall thickness of the gasket (outer diameter minus half of the inner diameter) is greater than 16MM. It cannot be cut by turning, but can only be cut by sawing, so the material utilization rate is very low. (For example: gasket size: outer diameter 87MM, inner diameter 48MM, height 4MM, sawing consumable material 3MM, flat end surface 1MM, grinding 0.5MM, so that at least one product is consumed); in addition, gasket size: outer diameter 72MM, For products with an internal diameter of 42MM and a height of 3MM, it is very difficult to process and clamp, so only a single-head surface grinder can be used, and the processing cost has increased significantly

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