刮板输送机减速器浮动油封早期失效控制研究-机械工程专业论文.docxVIP

万方数据 万方数据 Subject : Research on Early Failure of Floating Seal Used in Reducer of Scraper Conveyor Specialty : HYPERLINK /dict_result.aspx?searchword=%e6%9c%ba%e6%a2%b0%e5%b7%a5%e7%a8%8bamp;tjType=sentenceamp;styleamp;t=mechanical%2Bengineering Mechanical Engineering Name : Liu Jiangang (signature) Instructor : Kou Farong (signature) Liu Guoliang (signature) ABSTRACT The planetary reducer is one of the most important driving part of scraper conveyor, much attention has been paid to its quality. but in recent years, the floating seal of the output of reducer often happen leakage, This phenomenon has seriously restricted the overall quality of scraper conveyor equipment to improve. If in the early days of leakage is not resolved in time, with the development of the leakage condition, because of the severe lack of oil caused damage gear、bearings and other key parts failure, finally make reducer scrap.This paper aims to solve the problem of scraper conveyor drive reducer long-term oil leakage occurs, in-depth analysis and Research on its. Scraper conveyor reducer has a variety of seal types, This paper focuses on the leakage problem of floating seal of the output end.We study the working principle of float seal, combined with the analysis of the causes of the leakage, find out the existing problems of the assembling process、 inspection means and other aspects, put forward the corresponding technical improvement measures. Then selected 4290 type floating seal and the seal chamber, analyzing structural features, to establish a two-dimensional model of sealing parts.First, by analyzing the movement and force, and theoretical calculations, get the reasonable gap value. In order to reflect the actual working conditions and technical conditions, we make a large number of simulation experiments, the experimental data and theoretical data to do comparative analysis. Then we designed a testing device, do the tracking, recording, verification, analysis, get the most reason