Comprehensively analyze the research data related to gear machining deformation. In order to realize the prediction of machining deformation of super large spur bevel gear, it is necessary to study a series of theoretical and technical problems, such as the prediction of cutting accuracy of a single split body,...
The existing research on the subdivision machining of large gear is mainly aimed at large cylindrical gear. Niu Yanfang and Li Weijun analyzed the structural characteristics, processing technology and processing method of large gear ring, and put forward specific measures to preliminarily control the deformation of super large split...
In order to verify the machining accuracy of the studied process, taking the machining of large module cylindrical gear as an example, an example is verified and analyzed. 1. Cylindrical gear design scheme The gear to be processed in this paper is a large module cylindrical gear. The design...
After heat treatment, the large spur gear blank enters the processing stage. Before this link is officially carried out, it is necessary to select appropriate processing tools. CNC machining machine tool is the most critical tool in the modern processing of spur gears. It has the advantages of high...
Large gears generally refer to gears with gear modulus > 16 mm, which are widely used in heavy machinery such as engineering machinery, mining, metallurgy and so on. There are many kinds of large gears, such as spur gear, arc gear, bevel gear, etc. At present, there are two...
Heat treatment is not only a heating and cooling process of workpiece, but also a process of stress generation and release. The theory of heat treatment proves that the shape of the workpiece surface has a great influence on the defects caused by heat treatment. Before heat treatment, the...
Steel casting defects are common. Large gears are steel castings in terms of material, and various defects often appear. Before the large cast steel gear has no milling teeth, its defects are easy to deal with, as long as it is cleaned and repaired by welding. As for the...
The method of electric arc furnace primary smelting + LF refining is adopted for liquid steel smelting. In order to improve the purity of molten steel, reduce harmful inclusions and refine grains, the following measures are mainly taken in the molten steel smelting process: ① Internal control chemical composition...
Large gear is the core transmission part of mining mill, and its reliability is related to the safety and stability of the whole equipment. With the continuous increase of equipment specifications and transmission power, the large gear is also developing towards large-scale. Its diameter has exceeded 10 m and...
The involute profile is involute, and the helical profile is involute. From the perspective of engineering, in order to understand the error characteristics of a surface, it is often realized by investigating the accuracy of the characteristic line network composed of two families of curves. There are four families...