【简答题】![](https://cos-cdn.shuashuati.com/shuashuati-web/2024-0521-0905-00/logo-new-ad743.png)
已知:某车间一台QD10-19.5A6吊钩桥式起重机其起升机构布置和钢丝绳缠绕如右图,吊钩和动滑轮组重量q=2.2kN,起升电机额定功率Pe=22kW,额定转速ne=968rpm,减速器减速比i=31.5m,卷筒绳槽底直径D=400mm,钢丝绳直径d=14mm,机构总效率η=0.9。
求:
(1)起升速度;
(2)如果起升速度提高为16.5m/s,选择减速器的减速比,并初步确定原有电动机是否适用(稳态负载平均系数G=0.8)
![](https://cdn.shuashuati.com/imgs/c3182f28d98d48aa188c0a3c1d25b4c1.jpg)
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参考答案:
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参考解析:
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