成考院校在线答案
- 2022-09-12 [判断] <p class="MsoNormal">3、<span style="font-family:宋体">凸轮机构中，减小滚子半径、增大基圆半径，可以避免运动失真。（</span><span lang="EN-US"> </span><span style="font-family:宋体">）</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>
- 2022-09-12 [判断] <p class="MsoNormal">13、<span style="font-family:宋体">斜齿轮的当量的齿形相当于斜齿轮的法面齿形。（</span><span lang="EN-US"> </span><span style="font-family:宋体">）</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>
- 2022-09-12 [判断] <p class="MsoNormal">11、<span style="font-family:宋体">链节距越大，链速也越不均匀。（</span><span lang="EN-US"> </span><span style="font-family:宋体">）</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>
- 2022-09-12 [判断] <p class="MsoNormal">2、<span style="font-family:宋体">若渐开线齿轮传动的中心距增大，则传动比随之改变。（</span><span lang="EN-US"> </span><span style="font-family:宋体">）</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>
- 2022-09-12 [判断] <p class="MsoNormal">19、<span style="font-family:宋体">一般情况下，滚子轴承比球轴承的承载能力大。（</span><span lang="EN-US"> </span><span style="font-family:宋体">）</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>
- 2022-09-12 [判断] <p class="MsoNormal">12、<span style="font-family:宋体">因为基圆内没有渐开线，所以渐开线齿轮的齿根圆必须设计得比基圆大。（</span><span lang="EN-US"> </span><span style="font-family:宋体">）</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>
- 2022-09-12 [判断] <p class="MsoNormal">9、<span style="font-family:宋体">其他条件不变，若作用在球轴承上的当量动载荷增加一倍，则该轴承的基本额定寿命将降至原来的一半。（</span><span lang="EN-US"> </span><span style="font-family:宋体">）</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>
- 2022-09-12 [判断] <p class="MsoNormal">6、<span style="font-family:宋体">机构处于死点位置时，其传动角等于</span><span lang="EN-US">9</span><span lang="EN-US" style="font-family:宋体">0</span><span style="font-family:Microsoft Yahei;color:black">°</span><span style="font-family:宋体">，压力角等于</span><span lang="EN-US">0</span><span style="font-family:Microsoft Yahei;color:black">°</span><span style="font-family:宋体">。（</span><span lang="EN-US"> </span><span style="font-family:宋体">）</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>
- 2022-09-12 [判断] <p class="MsoNormal">15、<span style="font-family:宋体">用合金钢代替碳钢可以提高轴的刚度和强度。（</span><span lang="EN-US"> </span><span style="font-family:宋体">）</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>
- 2022-09-12 [判断] <p class="MsoNormal">18、<span style="font-family:宋体">平键的两侧面为工作面。（</span><span lang="EN-US"> </span><span style="font-family:宋体">）</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>