新型雙齒腹齒輪嚙合測試機之研究

齒輪是機械傳動中極為重要元件，而設計、製造出低成本、低噪音、重量輕及高效率的齒輪，一直是設計製造人員所追求的目標。為了能將齒輪之傳動噪音與振動減至最低，並且使其正確傳達轉動和動力，提高齒輪之精度成為重要之課題。本論文所探討之雙齒腹測試法為工業界廣為採用之齒輪精度測定法之一，其原理為將標準齒輪與待測齒輪以無齒隙之方式，將其兩側齒腹同時進行嚙合，依據中心距變異量來檢測待測齒輪之精度。相較於其他齒輪精度量測法，此方法十分簡便且設備相對便宜。然而此種方法最大之缺點在於無法有效地鑑別齒輪誤差之種類，因此本論文所研究之新型雙齒腹測試機即可克服現有雙齒腹測試機缺點。本實驗進行具有各種誤差待測齒輪之新型雙齒腹測試，並將測試結果與電腦模擬結果之分析比對。此外，利用齒輪原理完成待測齒輪外形之逆向反推模擬程式，並進行逆向反推齒形之驗證與比對。並依據實驗之經驗與結果發展可提高傳統雙齒腹測試機誤差鑑別能力之判斷程式，以期增加雙齒腹測試法之附加價值。本論文可提高國內業界對雙齒腹齒輪嚙合測試之認識並有助於精密傳動技術之提昇，藉此達到產業升級的目的。

關鍵字

雙齒腹測試；齒輪量測；齒輪嚙合測試機

並列摘要

Gears are important components in the machinery transmission system. It is the main target to design and manufacture gears with low cost, low noise, light weight and high efficiency. Double flank testing is a method by which a test gear is rolled together, in tight mesh, with master gear. As the gear rolls, slight variations of center distance are measured and recorded as an indicator of gear quality. The double flank testing machine investigated in this study is easy and low cost, and is widely used in gear industry. However, this method can not distinguish the error type of the gear very well. Therefore, a new design of double flank testing machine which combine two encoders on the gear shafts are developed to overcome the drawback of conventional one. The test gears with errors are inspected by this new machine. Testing results are compared with computer simulation results. In this study, the relations between gear errors and the testing results are also discussed. Furthermore, the simulation which can derive the profiles of testing gears with errors are developed according to the theorem of gearing. The new design double flank tester improves its discrimination on errors of gears. The results of this study can provide the industry a significant process to establish the analysis and capacities for double flank testing.