论坛 › 浙江 › 福利｜今天是《机械设计基本》的复习提纲

nqkk58 发表于 2024-8-4 11:44:24

福利｜今天是《机械设计基本》的复习提纲

    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">机械设计<span style="color: black;">基本</span>复习提纲</span></strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;"><span style="color: black;">1、</span><span style="color: black;">选取</span>题</span></strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">1</span><span style="color: black;">带传动在工作中产生弹性滑动的<span style="color: black;">原由</span>是</span><span style="color: black;"><span style="color: black;"> C </span></span><span style="color: black;">。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"> A. </span><span style="color: black;">带与带轮之间的摩擦系数较小</span><span style="color: black;"> B. </span><span style="color: black;">带绕过带轮产生了离心力</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"> C. </span><span style="color: black;">带的弹性与紧边和松边存在拉力差</span><span style="color: black;"> D. </span><span style="color: black;">带传递的中心距大</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">2</span><span style="color: black;">带传动<span style="color: black;">不可</span><span style="color: black;">保准</span>准确的传动比，其<span style="color: black;">原由</span>是</span><span style="color: black;"><span style="color: black;"> C </span></span><span style="color: black;">。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"> A. </span><span style="color: black;">带容易变形和磨损</span><span style="color: black;"> B. </span><span style="color: black;">带在带轮上<span style="color: black;">显现</span>打滑</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"> C. </span><span style="color: black;">带传动工作时<span style="color: black;">出现</span>弹性滑动</span><span style="color: black;"> D. </span><span style="color: black;">带的弹性变形不符合虎克定律</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">3</span><span style="color: black;">带张紧的目的是</span><span style="color: black;"><span style="color: black;"> D </span></span><span style="color: black;">。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"> A. </span><span style="color: black;">减轻带的弹性滑动</span><span style="color: black;"> B. </span><span style="color: black;"><span style="color: black;">加强</span>带的寿命</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"> C. </span><span style="color: black;">改变带的运动方向</span><span style="color: black;"> D. </span><span style="color: black;">使带<span style="color: black;">拥有</span><span style="color: black;">必定</span>的初拉力</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">4</span><span style="color: black;">与平带传动相比较，</span><span style="color: black;">V</span><span style="color: black;">带传动的优点是</span><span style="color: black;"><span style="color: black;"> D </span></span><span style="color: black;">。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"> A. </span><span style="color: black;">传动效率高</span><span style="color: black;"> B. </span><span style="color: black;">带的寿命长</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"> C. </span><span style="color: black;">带的价格便宜</span><span style="color: black;"> D. </span><span style="color: black;">承载能力大</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">5</span><span style="color: black;">螺纹副中一个零件相<span style="color: black;">针对</span>另一个转过一圈时，它们沿轴线方向相对移动的距离是</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;"> A </span></span><span style="color: black;">。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A.</span><span style="color: black;">线数</span><span style="color: black;">螺距</span><span style="color: black;"> B. </span><span style="color: black;">一个螺距</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"> C. </span><span style="color: black;">线数</span><span style="color: black;">导程</span><span style="color: black;"> D. </span><span style="color: black;">导程／线数</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">6</span><span style="color: black;">用于薄壁零件连接的螺纹，应采用</span><span style="color: black;"><span style="color: black;"> A </span></span><span style="color: black;">。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"> A. </span><span style="color: black;">三角形细牙螺纹</span><span style="color: black;"> B. </span><span style="color: black;">梯形螺纹</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"> C. </span><span style="color: black;">锯齿形螺纹</span><span style="color: black;"> D. </span><span style="color: black;">多线的三角形粗牙螺纹</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">10</span><span style="color: black;">7</span><span style="color: black;">标准中螺纹的</span><span style="color: black;"><span style="color: black;"> B </span></span><span style="color: black;">定为公<span style="color: black;">叫作</span>直径。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"> A. </span><span style="color: black;">螺纹中径</span><span style="color: black;"> B. </span><span style="color: black;">螺纹大径</span><span style="color: black;"> C. </span><span style="color: black;">螺纹小径</span><span style="color: black;"> D. A</span><span style="color: black;">、</span><span style="color: black;">B</span><span style="color: black;">、</span><span style="color: black;">C</span><span style="color: black;">三者均可</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">8</span><span style="color: black;">凸轮<span style="color: black;">公司</span>中的压力角<span style="color: black;">指的是</span></span><span style="color: black;">__A_____</span><span style="color: black;">间的夹角。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A.</span><span style="color: black;">凸轮上接触点的法线与从动件的运动方向</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">B. </span><span style="color: black;">凸轮上接触点的法线与该点线速度</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">C.</span><span style="color: black;">轮上接触点的切线与从动件的运动方向</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">9</span><span style="color: black;">普通平键连接传递动力是靠</span><span style="color: black;">___B____</span><span style="color: black;">。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A</span><span style="color: black;">.</span><span style="color: black;">两侧面的摩擦力</span><span style="color: black;"> B.</span><span style="color: black;">两侧面的挤压力</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">C. </span><span style="color: black;">上下面的挤压力</span><span style="color: black;"> D.</span><span style="color: black;">上下面的摩擦力</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">10</span><span style="color: black;">螺纹连接是一种</span><span style="color: black;">___</span><span style="color: black;"><span style="color: black;">A</span></span><span style="color: black;">___</span><span style="color: black;">。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A.</span><span style="color: black;">可拆连接</span><span style="color: black;"> B.</span><span style="color: black;">不可拆连接</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"> C.</span><span style="color: black;"><span style="color: black;">拥有</span>防松<span style="color: black;">安装</span>的为不可拆连接，否则为可拆连接</span><span style="color: black;">D.</span><span style="color: black;"><span style="color: black;">拥有</span>自锁性能的为不可拆连接，否则可拆</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">11</span><span style="color: black;">一对齿轮要正确啮合，它们的</span><span style="color: black;">___</span><span style="color: black;"><span style="color: black;">C</span></span><span style="color: black;">____</span><span style="color: black;"><span style="color: black;">必要</span>相等，</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"> A.</span><span style="color: black;">直径</span><span style="color: black;"> B.</span><span style="color: black;">宽度</span><span style="color: black;"> C.</span><span style="color: black;">模数</span><span style="color: black;"> D.</span><span style="color: black;">齿数</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">12</span><span style="color: black;">一个齿轮上的圆有</span><span style="color: black;">____B___</span><span style="color: black;">。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A</span><span style="color: black;">.</span><span style="color: black;">齿顶圆和齿根圆</span><span style="color: black;"> B.</span><span style="color: black;">齿顶圆，分度圆，基圆和齿根圆</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">C</span><span style="color: black;">.</span><span style="color: black;">齿顶圆，分度圆，基圆，节圆，齿根圆</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">13 </span><span style="color: black;"><span style="color: black;">按照</span>轴的承载情况，___A__的轴<span style="color: black;">叫作</span>为转轴。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A.</span><span style="color: black;">既承受弯矩又承受转矩 B.只承受弯矩不承受转矩</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">C.</span><span style="color: black;">不承受弯矩只承受转矩 D.承受<span style="color: black;">很强</span>的轴向载荷</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">14 </span><span style="color: black;">为<span style="color: black;">加强</span>轮齿的弯曲疲劳强度，下列<span style="color: black;">办法</span>中，最好的<span style="color: black;">办法</span>是__D___。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A.</span><span style="color: black;">模数不变，<span style="color: black;">增加</span>齿数 　 B.模数不变，增大中心距</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">C. </span><span style="color: black;">模数不变，增大直径 D.增大模数，相应减少齿数</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">15</span><span style="color: black;">在<span style="color: black;">通常</span>传递动力的机械中，<span style="color: black;">重点</span>采用_C___传动。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A.</span><span style="color: black;">平带 B.同步带 C.V带 D.圆形带</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">16 </span><span style="color: black;">带传动中，v1为主动轮圆周速度、v2为从动轮圆周速度、v为带速，这些速度之间存在的关系是___B__。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A.v1=v2=v B.v1&gt;v&gt;v2 C.v1&lt;v&lt;v2 D.v1=v&gt;v2 </span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">17</span><span style="color: black;">与其他<span style="color: black;">公司</span>相比，凸轮<span style="color: black;">公司</span>最大的优点是（</span><span style="color: black;"> A </span><span style="color: black;">）。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A</span><span style="color: black;">．可实现<span style="color: black;">各样</span>预期的运动规律</span><span style="color: black;"> B</span><span style="color: black;">．便于润滑</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">C</span><span style="color: black;">．制造方便，易<span style="color: black;">得到</span>较高的精度</span><span style="color: black;"> D</span><span style="color: black;">．从动件的行程可<span style="color: black;">很强</span></span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">18</span><span style="color: black;">压力角<span style="color: black;">指的是</span>凸轮轮廓曲线上某点的（</span><span style="color: black;"> D </span><span style="color: black;">）。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A. </span><span style="color: black;">切线与从动杆速度方向之间的夹角</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">B. </span><span style="color: black;">速度方向与从动杆速度方向之间的夹角</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">C. </span><span style="color: black;">法线方向与从动杆速度方向之间的夹角</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">D. </span><span style="color: black;">法线方向与从动杆速度方向之间夹的锐角</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">19</span><span style="color: black;">圆柱齿轮传动中，当齿轮直径不变，而减小齿轮的模数时，<span style="color: black;">能够</span></span><span style="color: black;">__B_____</span><span style="color: black;">。</span><span style="color: black;">A</span><span style="color: black;">．<span style="color: black;">加强</span>齿轮的弯曲强度</span><span style="color: black;"> B</span><span style="color: black;">．<span style="color: black;">加强</span>齿面的接触强度</span><span style="color: black;">C</span><span style="color: black;">．改善齿轮传动的<span style="color: black;">安稳</span>性</span><span style="color: black;"> D</span><span style="color: black;">．减少齿轮的塑性变形</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">20</span><span style="color: black;">在减速蜗杆传动中，用</span><span style="color: black;">__D_____</span><span style="color: black;">来计算传动比</span><span style="color: black;">i</span><span style="color: black;">是错误的。</span><span style="color: black;">A. <img src="http://mmbiz.qpic.cn/mmbiz/93UDickOteicOtPsGhv6Y7qcDaCel7lD8Jl7SL4ATpZfJX7z2L1RVZ4zpjlL5OzxTXHX1ByfcDw2MduyFBHVOqrQ/0?wx_fmt=gif&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1" style="width: 50%; margin-bottom: 20px;">B. <img src="http://mmbiz.qpic.cn/mmbiz/93UDickOteicOtPsGhv6Y7qcDaCel7lD8Jtx9MjicCsm0W2MicuV1ufSLLfsLMPth0iaPPOR6Xxq4OJjmz32YXjmQtA/0?wx_fmt=gif&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1" style="width: 50%; margin-bottom: 20px;">C.<img src="http://mmbiz.qpic.cn/mmbiz/93UDickOteicOtPsGhv6Y7qcDaCel7lD8JeGjtSIZvVHxZyYEaV81mFLqLqWKcSvaTQnbSBBWiaRYxkw8zPemNtibg/0?wx_fmt=gif&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1" style="width: 50%; margin-bottom: 20px;">D. <img src="http://mmbiz.qpic.cn/mmbiz/93UDickOteicOtPsGhv6Y7qcDaCel7lD8J9XklXPtRCJFav94NIqRuzIO9ibLMIpviaiaugh5k2DbO2Eb3uEd6VdNDA/0?wx_fmt=gif&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1" style="width: 50%; margin-bottom: 20px;"></span><span style="color: black;">21</span><span style="color: black;">增大轴在剖面过渡处的圆角半径，其优点是</span><span style="color: black;">__D_____</span><span style="color: black;">。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A. </span><span style="color: black;">使零件的轴向定位比较<span style="color: black;">靠谱</span></span><span style="color: black;"> B. </span><span style="color: black;">使轴的加工方便</span><span style="color: black;">C. </span><span style="color: black;">使零件的轴向固定比较<span style="color: black;">靠谱</span></span><span style="color: black;"> D. </span><span style="color: black;">降低应力集中，<span style="color: black;">加强</span>轴的疲劳强度</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">22</span><span style="color: black;">滚动轴承中，<span style="color: black;">能够</span>缺少某一部分，但</span><span style="color: black;">__ C____</span><span style="color: black;">是不<span style="color: black;">能够</span>缺少的。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">A</span><span style="color: black;">．</span><span style="color: black;">内圈</span><span style="color: black;"> B</span><span style="color: black;">．外圈</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">C</span><span style="color: black;">．</span><span style="color: black;">滚动体</span><span style="color: black;"> D</span><span style="color: black;">．保持架</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">23</span><span style="color: black;"><span style="color: black;">针对</span>开式齿轮传动，在工程设计中，<span style="color: black;">通常</span></span><span style="color: black;"> __D____</span><span style="color: black;">。</span><span style="color: black;">A</span><span style="color: black;">．按接触强度设计齿轮尺寸，再验算弯曲强度</span><span style="color: black;">B</span><span style="color: black;">．只需按接触强度设计</span><span style="color: black;">C</span><span style="color: black;">．按弯曲强度设计齿轮尺寸，再验算接触强度</span><span style="color: black;">D</span><span style="color: black;">．只需按弯曲强度设计</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;"><span style="color: black;">2、</span>填空题</span></strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">1</span><span style="color: black;">滚动轴承轴系支点轴向固定的结构型式是：（</span><span style="color: black;">1</span><span style="color: black;">）</span><span style="color: black;"><span style="color: black;">两端单向固定</span></span><span style="color: black;">；（</span><span style="color: black;">2</span><span style="color: black;">）</span><span style="color: black;"><span style="color: black;">一端游动；一端固定</span></span><span style="color: black;">；（</span><span style="color: black;">3</span><span style="color: black;">）</span><span style="color: black;"><span style="color: black;">两端游动</span></span><span style="color: black;">。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">2</span><span style="color: black;">在链传动中，当两链轮的轴线在同一平面时，应将</span><span style="color: black;"><span style="color: black;">紧</span></span><span style="color: black;">边<span style="color: black;">部署</span>在上面，</span><span style="color: black;"><span style="color: black;">松</span></span><span style="color: black;">边<span style="color: black;">部署</span>在下面。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">3</span><span style="color: black;">在滚子链的结构中，内链板与套筒之间、外链板与销轴之间采用</span><span style="color: black;"><span style="color: black;">过盈</span></span><span style="color: black;"><span style="color: black;">协同</span>，滚子与套筒之间、套筒与销轴之间采用</span><span style="color: black;"><span style="color: black;">间隙</span></span><span style="color: black;"><span style="color: black;">协同</span>。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">4</span><span style="color: black;"><span style="color: black;">其中</span>心距<span style="color: black;">不可</span>调节时，可采用张紧轮将带张紧，张紧轮<span style="color: black;">通常</span>应放在</span><span style="color: black;"><span style="color: black;">松边</span></span><span style="color: black;">的内侧，<span style="color: black;">这般</span><span style="color: black;"><span style="color: black;">能够</span>使带只受</span></span><span style="color: black;"><span style="color: black;">单向</span></span><span style="color: black;">弯曲。为避免过分影响</span><span style="color: black;"><span style="color: black;">小</span></span><span style="color: black;">带轮上的包角，张紧轮应<span style="color: black;">尽可能</span>靠近</span><span style="color: black;"><span style="color: black;">大</span></span><span style="color: black;">带</span><span style="color: black;">轮。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">5</span><span style="color: black;">带传动工作时，若主动轮的圆周速度为</span><span style="color: black;">，从动轮的圆周速度为</span><span style="color: black;">，带的线速度为</span><span style="color: black;">，则它们的关系为V1</span><span style="color: black;"><span style="color: black;">〉</span></span><span style="color: black;"> V</span><span style="color: black;">，</span><span style="color: black;"><span style="color: black;">V</span>2</span><span style="color: black;"> &lt; </span><span style="color: black;">V</span><span style="color: black;">。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">6</span><span style="color: black;">在正常<span style="color: black;">状况</span>下，弹性滑动只<span style="color: black;">出现</span>在带</span><span style="color: black;"><span style="color: black;">离开</span></span><span style="color: black;">主、从动轮时的那一部分接触弧上。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">7</span><span style="color: black;">在带传动中，弹性滑动是</span><span style="color: black;"><span style="color: black;">不可</span></span><span style="color: black;">避免的，打滑是</span><span style="color: black;"><span style="color: black;"><span style="color: black;">能够</span></span></span><span style="color: black;">避免的。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">8</span><span style="color: black;">普通螺纹的公<span style="color: black;">叫作</span>直径指的是螺纹的</span><span style="color: black;"><span style="color: black;">大径</span></span><span style="color: black;">，计算螺纹的摩擦力矩时<span style="color: black;">运用</span>的是螺纹的</span><span style="color: black;"><span style="color: black;">中径</span></span><span style="color: black;">，计算螺纹危险截面时<span style="color: black;">运用</span>的是螺纹的<span style="color: black;">　小径　</span>。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">9</span><span style="color: black;">在常用螺纹牙型中，</span><span style="color: black;"><span style="color: black;">矩形</span></span><span style="color: black;">形螺纹的传动效率最高，</span><span style="color: black;"><span style="color: black;">三角形</span></span><span style="color: black;">形螺纹的自锁性最好。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">10</span><span style="color: black;"><span style="color: black;">根据</span>滚动轴承所受载荷<span style="color: black;">区别</span>，滚动轴承可分为</span><span style="color: black;"><span style="color: black;">向心轴承</span></span><span style="color: black;">、</span><span style="color: black;"><span style="color: black;">推力轴承</span></span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">和</span><span style="color: black;"><span style="color: black;">向心推力轴承</span></span><span style="color: black;">三大类。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">11</span><span style="color: black;">在蜗杆传动中，<span style="color: black;">通常</span>蜗杆头数取</span><span style="color: black;">Z1=_</span><span style="color: black;"><span style="color: black;">1.</span></span><span style="color: black;"><span style="color: black;">、</span></span><span style="color: black;"><span style="color: black;">2</span></span><span style="color: black;"><span style="color: black;">、</span></span><span style="color: black;"><span style="color: black;">4 </span></span><span style="color: black;">__</span><span style="color: black;">，蜗杆头数越少，自锁性越</span><span style="color: black;">_</span><span style="color: black;">好</span><span style="color: black;">__</span><span style="color: black;">；</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">12</span><span style="color: black;">蜗杆传动的失效常常<span style="color: black;">出现</span>于</span><span style="color: black;">__</span><span style="color: black;"><span style="color: black;">蜗轮轮齿</span></span><span style="color: black;">___</span><span style="color: black;">上。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">13</span><span style="color: black;">滚动轴承的内圈与轴颈的<span style="color: black;">协同</span>采用</span><span style="color: black;"><span style="color: black;">基孔制</span></span><span style="color: black;">，滚动轴承的外圈与轴承座的<span style="color: black;">协同</span>采用</span><span style="color: black;"><span style="color: black;">基轴制</span></span><span style="color: black;">。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;"><span style="color: black;">3、</span>简答题</span></strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">1、</span><span style="color: black;">带传动中，带打滑和弹性滑动有何区别？</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">弹性滑动和打滑是两个截然<span style="color: black;">区别</span>的概念。打滑<span style="color: black;">指的是</span>过载<span style="color: black;">导致</span>的全面滑动，是带传动的失效形式，是<span style="color: black;">能够</span>避免的。而弹性滑动是<span style="color: black;">因为</span>拉力差<span style="color: black;">导致</span>的，只要传递圆周力，就必然会<span style="color: black;">出现</span>弹性滑动，<span style="color: black;">因此</span>弹性滑动是不<span style="color: black;">能够</span>避免的。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">2、</span><span style="color: black;">齿轮的失效形式有<span style="color: black;">那些</span>？采取什么<span style="color: black;">办法</span><span style="color: black;">能够</span>减缓失效<span style="color: black;">出现</span>？</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">（</span><span style="color: black;">1</span><span style="color: black;">）</span><span style="color: black;">轮齿折断</span><span style="color: black;">对轮齿进行淬火，或适当降低齿轮材料的硬度，<span style="color: black;">加强</span>其韧性</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">（2）</span><span style="color: black;">齿面疲劳点蚀</span><span style="color: black;"><span style="color: black;">加强</span>齿面硬度，降低齿面粗糙度</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">（3）</span><span style="color: black;">齿面胶合</span><span style="color: black;"><span style="color: black;">加强</span>齿面硬度，降低齿面粗糙度</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">（4）</span><span style="color: black;">齿面磨损</span><span style="color: black;">改开式传动为闭式传动</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">（</span><span style="color: black;">5</span><span style="color: black;">）齿面塑性变形</span><span style="color: black;">减少载荷及摩擦力</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;"><span style="color: black;">4、</span>计算题</span></strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">2</span><span style="color: black;">、在图示的轮系中，已知各轮齿轮为Z1=Z2’=30，Z2=Z3=25，ZH=100，Z4=20。求传动比i14。（10分）</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><img src="http://mmbiz.qpic.cn/mmbiz/93UDickOteicOtPsGhv6Y7qcDaCel7lD8JTicauVKUmAxvQnO1F4cZictKQKeMHZicsZzhRc6rAdLaSAXERID1S5ia7w/640?wx_fmt=jpeg&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">解：H，4<span style="color: black;">构成</span>定轴轮系；齿轮1、2-2’、3和H <span style="color: black;">构成</span>周转轮系</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="http://mmbiz.qpic.cn/mmbiz/93UDickOteicOtPsGhv6Y7qcDaCel7lD8JxNKMQE8OQ7QyNzAzOm1w7icibWbKlictQO6l8FUCtaRic5qDB8TQFQ60HQ/0?wx_fmt=gif&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1" style="width: 50%; margin-bottom: 20px;"></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;"><span style="color: black;">5、</span>改错题</span></strong></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">1</span><span style="color: black;">、指出图4-2中的结构错误(在有错处画○编号，并分析错误<span style="color: black;">原由</span>)，并在轴心线下侧画出其正确结构图。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"> <img src="http://mmbiz.qpic.cn/mmbiz/93UDickOteicOtPsGhv6Y7qcDaCel7lD8J5rbPcyhRbtDn3RgKOEbic0OuP8TOjmwp3LYMu8uQmd1c0hnO9viafk3Q/640?wx_fmt=jpeg&amp;tp=webp&amp;wxfrom=5&amp;wx_lazy=1&amp;wx_co=1" style="width: 50%; margin-bottom: 20px;"></span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">答：①固定轴肩端面与轴承盖的轴向间距太小。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">②轴承盖与轴之间应有间隙。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">③轴承内环和套简装不上，<span style="color: black;">亦</span>拆不下来。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">④轴承安装方向不对。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">⑤轴承外圈内与壳<span style="color: black;">身体</span>壁间应有5-8mm间距。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">⑥与轮毂相配的轴段长度应<span style="color: black;">少于</span>轮毂长。</span></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">⑦轴承内圈拆不下来。</span></p>

情迷布拉格 发表于 2024-8-25 03:19:48

楼主果然英明！不得不赞美你一下！

nqkk58 发表于 2024-9-26 04:41:50

我完全同意你的看法，期待我们能深入探讨这个问题。

wrjc1hod 发表于 2024-11-3 01:57:00

“BS”（鄙视的缩写）‌

m5k1umn 发表于 2024-11-10 00:19:51

我赞同你的看法，你的智慧让人佩服，谢谢分享。

7wu1wm0 发表于 2024-11-10 22:05:05

外链论坛的成功举办，是与各位领导、同仁们的关怀和支持分不开的。在此，我谨代表公司向关心和支持论坛的各界人士表示最衷心的感谢！

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