The work objective is to introduce the visualization of the project main parameters into the design methodology to accelerate the adoption of constructive solutions while maintaining the geometric dimensions accuracy and their reference to the technical require-ments. The task methodology provides the usability of program-ming, and the parameter analysis of worm gears that determine their performance. The calculation results are formed in arrays which serve as the basis for constructing two types of charts. For obtaining graphs of the functions of center distance from the transmitted torque, the most used formulas for the design calculation of worm gears on the contact endurance for the averaged values of the load ratios, gear ratios and the initial parameters of the gearing are used. The data are divided into three groups of materials with the appropriate allowable stresses, and into two kinds of worm profiles (line and not line). To gain the functionality of sliding velocities from the center distance, the velocities for lists of standard center distances and gear ratios are calculated. The results are a group of charts based on center distance up to 500 mm covering the entire standardized range from torques up to 20,000 Nm. The second group of graphs (dependences of sliding speeds from the center distance) is made for gear ratios up to 80, with rotational speed of worm 750, 1000 and 1500 rpm. The recommendations for selection by standard depending on the set rotation frequency of the worm are developed. The work performed allows concluding that graphs of the mutual dependence between parameters, geometry, loads, and kinematics of the worm gears create a range of rendering capabilities for a good scope of the main parameters selection. Depending on the application area, the graph parameters can be extended or stretched to the desired range without changing the principle of construction. The application of the described graphs allows a de-veloper to reduce significantly the calculations cycle of slip speed and spacing under the contact endurance condition closed on the properties of the chosen transfer materials.
worm gear, worm, slip rate, angle of ascent, degree of accuracy, transfer geometric parameters, transfer kinematics.
В разных источниках для проектного расчета червячных передач по исходным данным (мощность и частота вращения на червяке, передаточное число или эквивалентный набор параметров) используются формулы расчета межосевого расстояния [1–7] или делительного диаметра червячного колеса [8, 9] по главному условию работоспособности — контактной выносливости. Для проведения проектного расчета в настоящей работе использована формула межосевого расстояния, позволяющая быстрее уточнить его по стандарту.
Цель работы — представить расчет червячной передачи в графической интерпретации, позволяющей визуализировать обзор множества вариантов червячных передач для выбора наиболее подходящего техническому заданию. Такой подход сокращает объем подготавливаемых данных для расчета основных параметров, время выбора рационального варианта и соответствует направлению визуализации методов проектирования конструкций.
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