精密齒輪傳動裝置設計

摘    要

齒輪傳動執(zhí)行旋轉軸之間的動力和運動的傳遞。齒輪傳動有著悠久的歷史，他的應用范圍非常廣泛，因而導致建立了龐大的齒輪制造業(yè)。精密齒輪傳動是近年來發(fā)展起來的另一特殊分支。隨著科學技術和社會經濟的發(fā)展，到本世紀后期，精密齒輪傳動的理論與實踐均趨于成熟，并得到廣泛應用，近幾十年，在新技術革命的推動下 特別是伴隨著微電子技術和計算機技術的進步，精密齒輪傳動幾乎已遍及社會的各個領域，精密齒輪傳動在機械制造行業(yè)中應用廣泛，同時，精密齒輪傳動系統(tǒng)的應用對國防、工業(yè)生產、交通運輸甚至家庭生活都作出了巨大貢獻，它的發(fā)展勢必影響一個國家國民經濟的發(fā)展。
本文針對精密齒輪傳動過程中出現的回差和傳動誤差等問題，對精密齒輪裝置的軸、齒輪進行了受力分析和計算，計算了軸的疲勞強度安全系數。并應用AUTOCAD2004軟件繪制了部分零件圖，作了詳細的尺寸標注和說明，手工繪制了齒輪傳動裝置的裝配圖，并進行傳動誤差和回差分析，分析并歸納出齒輪傳動誤差和傳動回差計算公式，以此為依據計算出傳動鏈的回差和傳動誤差，得出減少回差和傳動誤差的措施。

關鍵詞：精密齒輪傳動，傳動鏈，回差，傳動誤差

 ABSTRACT

The gear drive execution the transmission between rotation axis's power and movement transmission.The gear drive has the glorious history, his application scope is widespread,thus caused to establish the huge gear manufacturing industry.The precision gear drive is another special branch which the recent years developed.Along with the science and technology and social economy's development, to this century later period, the precision gear drive's theory and the practice tends to be mature, and obtains the widespread application, in the recent several dozens years, specially are following the microelectronic technology and the computer technology progress under the new technological revolution's impetus, the precision gear drive has spread social nearly each domain, the precision gear drive applies widely in the machine manufacture profession, simultaneously, the precision gear drive system's application to the national defense, the industrial production, the transportation family life has even made the great contribution, its development will affect a country national economy inevitably the development.
    Major study content in the paper is described the retuin defference and transmission error in the precision gear drive process.To the precision gear system's axis and the gear,the the stress analysis and the computation has been carried on, the axis fatigue strength safety coefficient has been calculated.And the partial detail drawings has been drawn up using the AUTOCAD2004 software, has made the detailed size marking and the explanation, the handwork has drawn up tooth gear's assembly drawing, and carries on the transmission error and returns to the difference analysis, analyzes and induces the gear drive error and the transmission returns to the difference formula, calculates the transmission chain take this as the basis to return difference and the transmission error, obtains reduces difference and transmission error's measure.

Key words：precision gear drive, the transmission chain, return difference,  transmission error

目   錄

中文摘要 Ⅰ
ABSTRACT Ⅱ
1緒論 1
  1.1 本文的目的和意義 1
  1.2.國內外研究現狀 2
  1.3 本文的主要研究方向 4
2 結構設計和理論計算  5
  2.1 減速器的設計概述 5
  2.2 結構設計 6
 2.3齒輪、齒輪軸和軸承的選用和計算 6
2.3.1齒輪的設計和校核 6
     2.3.2 傳動軸的設計和校核 13
2.4 本章小結 18
3 傳動鏈回差和傳動誤差公式的推導和計算 19
  3.1 傳動鏈的回差計算公式的推導 19
     3.1.1回差的概念 19
3.1.2影響回差的因素分析 19
  3.2 傳動鏈回差的計算 24
3.2.1回差的計算 24
3.2.2 減少回差的措施 25
  3.3 傳動誤差的計算公式的推導 27
     3.3.1單向傳動誤差的概念 27
 3.3.2單個齒輪的單向傳動誤差概率統(tǒng)計法及數字特征 27
3.3.3結論 30
  3.4 傳動鏈的傳動誤差計算 30
3.4.1 傳動誤差的計算 30
3.4.2 減少傳動誤差的措施 31
3.5本章小結 33
4 結束語 34
參考文獻 35