上海理工大学学报
上海理工大學學報
상해리공대학학보
2014年
6期
556-561
,共6页
汽车变速器%斜齿轮%对角修形%计算方法
汽車變速器%斜齒輪%對角脩形%計算方法
기차변속기%사치륜%대각수형%계산방법
automobile transmission%helical gear%bias%computational method
针对汽车变速器齿轮传动中的振动及噪声问题,从齿轮几何学角度出发,提出了斜齿轮副对角修形量的计算方法。根据齿轮啮合原理,建立了斜齿轮副两啮合工作齿面满足任意瞬时连续相切接触条件的啮合方程,并将方程求解转化为两啮合齿面法向间距最小以及法向量偏差最小的优化问题,从而确定了对角修形量。同时,基于 Masta 仿真平台建立目标变速器的三维模型,并根据对角修形的参数对目标齿轮副的啮合性能进行仿真试验验证。仿真试验表明,变速箱主减速齿轮副对角修形后常用工况下的传动误差明显降低,齿面载荷分布更加合理。
針對汽車變速器齒輪傳動中的振動及譟聲問題,從齒輪幾何學角度齣髮,提齣瞭斜齒輪副對角脩形量的計算方法。根據齒輪齧閤原理,建立瞭斜齒輪副兩齧閤工作齒麵滿足任意瞬時連續相切接觸條件的齧閤方程,併將方程求解轉化為兩齧閤齒麵法嚮間距最小以及法嚮量偏差最小的優化問題,從而確定瞭對角脩形量。同時,基于 Masta 倣真平檯建立目標變速器的三維模型,併根據對角脩形的參數對目標齒輪副的齧閤性能進行倣真試驗驗證。倣真試驗錶明,變速箱主減速齒輪副對角脩形後常用工況下的傳動誤差明顯降低,齒麵載荷分佈更加閤理。
침대기차변속기치륜전동중적진동급조성문제,종치륜궤하학각도출발,제출료사치륜부대각수형량적계산방법。근거치륜교합원리,건립료사치륜부량교합공작치면만족임의순시련속상절접촉조건적교합방정,병장방정구해전화위량교합치면법향간거최소이급법향량편차최소적우화문제,종이학정료대각수형량。동시,기우 Masta 방진평태건립목표변속기적삼유모형,병근거대각수형적삼수대목표치륜부적교합성능진행방진시험험증。방진시험표명,변속상주감속치륜부대각수형후상용공황하적전동오차명현강저,치면재하분포경가합리。
Aiming at noise harshness reduction during the process of gearing in automobile transmission,from the view of gear geometry,a method to compute the magnitude of bias of helical gear pair was proposed.Meshing equations of driving surfaces,satisfying the condition that the gear pair is instantaneously in tangent contact,were built based on the principle of gear meshing.The problem of solving the equations was transformed to an optimization problem of guaranteeing the minimum normal distance between meshing flanks and minimum deviation between normal vectors.Then the magnitude of bias was achieved.Meanwhile,a model of the target transmission was built with Masta simulation platform,and the computation results were verified by conducting simulation experiments on the Masta.The simulation experiments indicate that,after the bias modification of gear pair,the transmission error is reduced apparently and the distribution of load becomes more reasonable under the common working conditions.