A Forging Technology of Single Oil Groove Helical Gear

Abstract

The invention belongs to the technical field of gear manufacturing, and specifically relates to a forging process of a helical gear with a single oil groove. The rolling gear machine used in the process includes a frame; It is connected with a workbench; the workbench is rotatably connected with a circular turntable, which is used to fix the gear blank; one side of the frame is fixedly connected with a No. 1 slide rail, and the No. 1 slide rail is slidably connected with a drive unit for Drive the rolling wheel to rotate and squeeze the outer circumference of the gear blank to form a tooth shape; the side of the worktable away from the rolling wheel is provided with a No. 2 slide rail, and a support unit is slidably connected to the No. 2 slide rail; a bracket is fixedly connected to the support unit The end of the bracket away from the support unit is rotatably connected with a support wheel, and the end of the support wheel away from the bracket is provided with a tapered portion, which cooperates with the outer edge shoulder of the gear; the present invention supports the outer edge shoulder of the gear through the tapered portion, reducing The deformation of the gear blank during the hobbing process improves the machining accuracy of the gear.

Description

technical field [0001] The invention belongs to the technical field of gear manufacturing, in particular to a forging process of a single oil groove helical gear. Background technique [0002] A gear is a mechanical element with gears on the rim that continuously mesh to transmit motion and power. The application of gears in transmission has appeared very early. At the end of the 19th century, the principle of generative gear cutting method and special machine tools and cutting tools using this principle appeared one after another. With the development of production, the stability of gear operation was paid more attention. The gear is a common part often used in mechanical transmission. The gear is made of high-quality high-strength alloy steel, and the surface is carburized and hardened. It has a strong bearing capacity and is durable. In practical applications, helical gears are widely used in high-speed and heavy-duty occasions due to their stable transmission, low impa...

AI Technical Summary

Problems solved by technology

[0005] In order to make up for the deficiencies of the existing technology, solve the problem that in the existing gear hobbing technology, the heated gear blank is quickly taken out of the heating furnace, and then the gear blank is installed on the rotary table, and then the gear blank is rotated and squeezed by the rolling wheel The outer edge, so that the outer edge of the gear blank is gradually extruded to form a tooth shape, and the center hole of the gear is subjected to radial pressure, so that the gear with a higher temperature will be deformed when it is strongly squeezed by the rolling wheel, which affects the machining accuracy of the gear. A kind of forging process of single oil groove helical gear proposed by the present invention

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