Surface machining process of wind power gear ring
A surface processing and ring gear technology, which is applied in the field of wind power ring gear surface processing technology, can solve the problems of unable to meet market needs, limited production quantity, low processing efficiency, etc.
Active Publication Date: 2020-10-27
WAFANGDIAN BEARING GRP STATE BEARING ENG TECH RES CENT CO LTD
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Problems solved by technology
The surface quality, parallelism and runout of the inner diameter and the sliding area of the end face have high requirements. Because the product belongs to soft surface processing, the current mature technology can only be ground, but the low processing efficiency and single process limit the production quantity, which cannot meet the market demand. need
Method used
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[0036] The process flow of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0037] Such as Figure 1-4 As shown, a wind power ring gear surface processing technology uses turning instead of grinding. Turning uses a tool with a surface hardness of 26-32HRC. Through reasonable cutting depth, feed rate and line speed, the surface roughness of Rz2-4um is achieved. degree requirements; the specific process steps are:
[0038] Step 1: Acceptance of incoming materials;
[0039] Step 2: Finish turning end face C, outer diameter, first tooth platform diameter, inner diameter, first chamfer;
[0040] Step 3: Type the inner diameter;
[0041] Step 4: Finish turning end face B, second tooth platform diameter, second inner diameter, stepped surface, fillet, second chamfer;
[0042] Step 5: Rough machining of teeth;
[0043] Step 6: aging treatment;
[0044] Step 7: tooth finishing;
[0045] Step 8: Typing on the top of the toot...
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Abstract
The invention relates to the field of machining of slewing bearing products, in particular to a surface machining process of a wind power gear ring. Turning is adopted instead of grinding, a tool withthe surface hardness of 26-32 HRC is adopted for conducting turning, and through the reasonable depth of cutting, feeding quantity and linear velocity, and the surface roughness reaches Rz2 to Rz 4 micrometers. Compared with grinding, the process has the advantages that the efficiency of machining a single piece can be improved by 50%, the cost of a single piece is reduced by 30% or above, and the quality risks are lowered at the same time; the surface machining process has positive significance in preventing surface-layer burning and cracking of the product, and can also guarantee end-face run-out, planeness and other indicators of the product, and the surface roughness of the machined product meets product requirements.
Description
technical field [0001] The invention relates to the field of processing of slewing bearing products, in particular to a surface processing technology of a wind power ring gear. Background technique [0002] The yaw ring gear is one of the key components in the yaw system of wind power equipment, and its function is equivalent to a large sliding bearing. It is located at the bottom of the nacelle seat, the lower end is fixed to the tower through bolts, the upper part supports the entire nacelle through the sliding surface, and the surrounding is meshed with the output gear of the yaw reducer. Driven by the yaw motor, the whole nacelle mechanism is driven to rotate slowly, so that the impeller Accurate wind direction, in order to obtain maximum wind energy and power generation efficiency. The surface quality, parallelism and runout of the inner diameter and the sliding area of the end face have high requirements. Because the product belongs to soft surface processing, the c...
Claims
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Login to View More IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 郑晓菲于永刚赵铭张丽娜于洋李强王振刘艳芳刘学
Owner WAFANGDIAN BEARING GRP STATE BEARING ENG TECH RES CENT CO LTD