一、齒輪的基本參數有哪些
齒(chi)(chi)(chi)(chi)輪(lun)(lun)是指輪(lun)(lun)緣上(shang)有齒(chi)(chi)(chi)(chi)輪(lun)(lun)連續嚙(nie)合傳(chuan)遞運動(dong)和動(dong)力的(de)(de)(de)(de)機(ji)械元件,在機(ji)械領域,有許(xu)多不同的(de)(de)(de)(de)參數(shu)用來表達齒(chi)(chi)(chi)(chi)輪(lun)(lun)的(de)(de)(de)(de)各(ge)種性能,基本的(de)(de)(de)(de)齒(chi)(chi)(chi)(chi)輪(lun)(lun)參數(shu)有齒(chi)(chi)(chi)(chi)數(shu)z(一(yi)個(ge)齒(chi)(chi)(chi)(chi)輪(lun)(lun)的(de)(de)(de)(de)輪(lun)(lun)齒(chi)(chi)(chi)(chi)總數(shu))、模(mo)數(shu)m(相鄰兩(liang)輪(lun)(lun)齒(chi)(chi)(chi)(chi)同側齒(chi)(chi)(chi)(chi)廓間的(de)(de)(de)(de)齒(chi)(chi)(chi)(chi)距p與圓(yuan)周率(lv)π的(de)(de)(de)(de)比值)、分度圓(yuan)直徑(jing)d(直徑(jing)為模(mo)數(shu)乘以齒(chi)(chi)(chi)(chi)數(shu)的(de)(de)(de)(de)乘積的(de)(de)(de)(de)圓(yuan))、壓力角(jiao)α(兩(liang)齒(chi)(chi)(chi)(chi)廓曲線(xian)的(de)(de)(de)(de)公法線(xian)與兩(liang)節(jie)圓(yuan)的(de)(de)(de)(de)公切(qie)線(xian)所(suo)夾的(de)(de)(de)(de)銳角(jiao))、齒(chi)(chi)(chi)(chi)高和齒(chi)(chi)(chi)(chi)厚(hou)等,其中齒(chi)(chi)(chi)(chi)數(shu)和模(mo)數(shu)是齒(chi)(chi)(chi)(chi)輪(lun)(lun)最重要的(de)(de)(de)(de)參數(shu)。
二、齒輪傳動的特點
齒(chi)輪(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)是(shi)(shi)機械工程(cheng)學的一個專業術語,是(shi)(shi)指利用兩齒(chi)輪(lun)(lun)的輪(lun)(lun)齒(chi)相互嚙(nie)合傳(chuan)(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)力和運動(dong)(dong)的機械傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong),也是(shi)(shi)應(ying)用最(zui)廣(guang)泛的一種機械傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)方式,有圓(yuan)柱(zhu)齒(chi)輪(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)、錐(zhui)齒(chi)輪(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)、行星齒(chi)輪(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)等多種。齒(chi)輪(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)的特點是(shi)(shi)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)精度高(gao)、適用范圍廣(guang)、傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)效率高(gao)、使用壽(shou)命(ming)長,不過同時齒(chi)輪(lun)(lun)的使用成本、制造和安裝的要(yao)求較高(gao),對于(yu)工作(zuo)的環境條件要(yao)求也比較嚴格,且(qie)屬于(yu)剛(gang)性傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong),減(jian)振性和抗沖擊性都(dou)不太(tai)理想。
三、齒輪模數怎么計算
模數是人們設定的一個能度量齒輪大小的參數,它是一個比值,其大小與分圓齒厚有關,齒輪模數的計算公式是:齒輪模數m=分度圓直徑d/齒數z =齒距p /圓周率π。直徑一定的情況下,模數越大說明齒越大、齒距越大,說明外形尺寸越大,強度越高,單精密度也越低,因此在實際的齒輪設計時,要根據齒輪的厚度、變位等參數以及齒輪的使用環境等,選擇正規齒輪品牌采購齒輪。
四、齒輪加工工藝過程
齒(chi)(chi)輪是許多機械設備(bei)的核心傳動(dong)部(bu)件,其加(jia)工(gong)(gong)質量的優劣對機械設備(bei)的穩定(ding)性和可靠性影響巨大,一般(ban)齒(chi)(chi)輪加(jia)工(gong)(gong)的類型有銑齒(chi)(chi)、磨(mo)齒(chi)(chi)、滾齒(chi)(chi)、插齒(chi)(chi)、剃齒(chi)(chi)、珩齒(chi)(chi)六種,加(jia)工(gong)(gong)齒(chi)(chi)輪的工(gong)(gong)藝(yi)過程主要包括毛(mao)坯(pi)處(chu)理、齒(chi)(chi)坯(pi)加(jia)工(gong)(gong)、齒(chi)(chi)形加(jia)工(gong)(gong)、熱處(chu)理、齒(chi)(chi)形精加(jia)工(gong)(gong)、齒(chi)(chi)端加(jia)工(gong)(gong)等階(jie)段。