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0409U000988,
к.т.н.
04-03-2009
o
Increasing durability of eccentric mechanism of vibratory diggers of beet harvesters by strengthening at making and repair.
Fastovets Pavlo Mycolayovych,
popup.head Molodyk Mykola Volodymyrovych
popup.opponent Булгаков Володимир Михайлович
popup.opponent Роговський Іван Леонідович
Дисертаційна робота присвячена підвищенню довговічності ексцентрикового механізму у віброприводі лемішних копачів шляхом зміцнення нерухомих з'єднань в процесі виготовлення і ремонту. Досліджено експлуатаційну надійність викопуючих агрегатів з лемішними віброкопачами і встановлено, що найменший ресурс мають шпонкові з'єднання в ексцентриковому механізмі. Розроблено математичну модель зношування шпонкового з'єднання, проаналізовано сили в з'єднаннях і оцінено трибологічні властивості контактуючих поверхонь. Запропоновано методику прогнозування ресурсу нерухомих з'єднань валів з ексцентриками і встановлено закономірності їх зношування. На основі цього розроблено пропозиції щодо підвищення ресурсу, які полягають в зменшенні допусків на розміри елементів деталей в нерухомих з'єднаннях, наплавленні на зношені поверхні тріщиностійкого вуглецевого сталевого шару і його гартуванні з низьким відпуском. Розроблено та впроваджено технологічний процес відновлення ексцентрикових валів, ефективність якого підтверджено експлуатаційними випробуваннями.
2009-03-04
2020-04-04
Updated: 2025-12-07
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