Determination of the rational profile of fine-module ratchet teeth when cutting with a rack-type tool

International Conference on Mechanical Engineering, Automation and Control Systems 2018

Sharkov, O.V.^1 ; Koryagin, S.I.^1 ; Velikanov, N.L.^1

Immanuel Kant Baltic Federal University, Kaliningrad

236016, Russia^1

关键词: Design stage;    Load capacity;    Mathematical expressions;    Workpiece;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/560/1/012153/pdf
DOI  :  10.1088/1757-899X/560/1/012153

来源: IOP

【 摘 要 】

The article analyzes the mathematical expressions describing the process of shaping the edges of the outer fine-module ratchet teeth when cutting with a rack-type tool. Mathematical dependencies are received for calculating the length of straight segments of the front and back edges of ratchet teeth, allowing one to determine their rational profile at the design stage. The initial data for the calculations are: the radius of the workpiece circumference, passing through the dedendum of the internal teeth; a gradient angle of the front and back edges of the tooth and their grinding angle; ratchet engagement module. The use of fine-module ratchet teeth with a rational profile makes it possible to increase the load capacity of the ratchet engagement.