性XXXX欧美老妇506070,欧美牲交40_50A欧美牲交AⅤ,老太BBWWBBWW高潮

<video id="vj3bd"></video>
<video id="vj3bd"><output id="vj3bd"><font id="vj3bd"></font></output></video><dl id="vj3bd"></dl>
<video id="vj3bd"><output id="vj3bd"><delect id="vj3bd"></delect></output></video>
<video id="vj3bd"></video><dl id="vj3bd"><output id="vj3bd"><font id="vj3bd"></font></output></dl>
<dl id="vj3bd"></dl>
<video id="vj3bd"><dl id="vj3bd"><output id="vj3bd"></output></dl></video><dl id="vj3bd"><output id="vj3bd"></output></dl>
<dl id="vj3bd"><delect id="vj3bd"></delect></dl>
<video id="vj3bd"></video>
<video id="vj3bd"></video>
<video id="vj3bd"><output id="vj3bd"><delect id="vj3bd"></delect></output></video>
<video id="vj3bd"></video>
<video id="vj3bd"><dl id="vj3bd"></dl></video>
<video id="vj3bd"></video><video id="vj3bd"><output id="vj3bd"></output></video>
<video id="vj3bd"><output id="vj3bd"><delect id="vj3bd"></delect></output></video>
<video id="vj3bd"><output id="vj3bd"><font id="vj3bd"></font></output></video><video id="vj3bd"></video><video id="vj3bd"></video>
<video id="vj3bd"></video>
<output id="vj3bd"></output>
<video id="vj3bd"></video>

禹州市宇溢環保過濾設備有限公司

新聞資訊

門式起重機齒輪安裝調整方法

發布時間:2021-3-2 15:51:14  來源:  作者:

1.用塞尺測量齒輪側向嚙合間隙,其最小值應符合有關規定,若用壓鉛法測量時,鉛絲沿齒輪外緣布絲長度不少于5個齒距,轉動齒輪,待齒輪將鉛絲壓扁后、取出,分別用千分尺測量壓扁鉛絲的厚度,其最小值應符合規定。
2.用紅丹著色法,檢查測量齒輪嚙合接觸情況,方法是:紅丹薄而均勻地涂在小齒輪的兩側齒面上,轉動高速軸,使大齒輪正反方向轉動,查看接觸痕跡,并計算出接觸的百分比,其值應符合有關規定。
3.開式齒輪的安裝調整要求同上,但接觸點精度等級可降低1-2級,可按8-9級檢查。
性XXXX欧美老妇506070,欧美牲交40_50A欧美牲交AⅤ,老太BBWWBBWW高潮