mst-jx2.html 23.3 KB
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            <div class="st_title">智能物流部机械设计工程师(S1级)笔试</div>
            <p style="text-align: center"><span>总分:120分</span>  <span style="padding-left: 20px">闭卷:90分钟</span></p>
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                <div class="col-md-3 col-md-offset-3"><span style="color:red">*</span>姓名:<input id="userName" maxlength="30"  type="text" class="tm_input" placeholder="必填项"></div>
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                <input type="hidden" id="answerId">
                <h2 class="tm_title">一、填空题(每空2分,共26分)</h2>
                <p style="padding-left: 25px">
                    1.&nbsp;&nbsp;在齿轮传动中,已知两啮合齿轮中心距为80mm,传动比为r=3,模数为2,试问小齿轮Z<sub>1</sub>多少齿(<input name="answer" type="text" class="hx_input2">)。
                </p>
                <p style="padding-left: 25px">
                    2.&nbsp;&nbsp;选择普通平键时,键的截面尺寸(b×h)是根据(<input name="answer" type="text" class="hx_input2">)查标准来确定的,普通平键的工作面是(<input name="answer" type="text" class="hx_input2">)。
                </p>
                <p style="padding-left: 25px">
                    3.&nbsp;&nbsp;粗牙和细牙区别是(<input name="answer" type="text" class="hx_input2">),哪种自锁性更好(<input name="answer" type="text" class="hx_input2">)。
                </p>
                <p style="padding-left: 25px">
                    4.&nbsp;&nbsp;轴承6203的内径是(<input name="answer" type="text" class="hx_input2">)。
                </p>
                <p style="padding-left: 25px">
                    5.&nbsp;&nbsp;一伺服电机其额定转速为3000=r/min,输出额定力矩为1.27=Nm,其功率多少(<input name="answer" type="text" class="hx_input2">)。
                </p>
                <p style="padding-left: 25px">
                    6.&nbsp;&nbsp;材料45#的含碳量为(<input name="answer" type="text" class="hx_input2">)。
                </p>
                <p style="padding-left: 25px">
                    7.&nbsp;&nbsp;在气路系统中,气缸活塞杆伸缩速度调节一般采用(<input name="answer" type="text" class="hx_input2">)元件。
                </p>
                <p style="padding-left: 25px">
                    8.&nbsp;&nbsp;如图1所示为一辊道机,链轮1安装于电机出轴上,电机输出转速56=r/min,各齿轮齿数为Z<sub>1</sub>=15、Z<sub>2</sub>=13,滚筒直径为:76mm,货物输送速度是(<input name="answer" type="text" class="hx_input2">)m/min。
                </p>
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                    <span><img th:src="@{/answer/images/jx2_pic1.png}" style="max-width: 100%;height: auto"></span><br/>
                    <span style="color: red">(图1)</span>
                </p>
                <p style="padding-left: 25px">
                    9.&nbsp;&nbsp;如图1所示辊道机,在货物上施加一个水平与速度相反推力F=1500N,忽略摩擦阻力、加速度等,试问电机功率为(<input name="answer" type="text" class="hx_input2">)。
                </p>
                <p style="padding-left: 25px">
                    10.&nbsp;&nbsp;常用尺寸段的标准公差的大小,随基本尺寸的增大而(<input name="answer" type="text" class="hx_input2">),随公差等级的提高而(<input name="answer" type="text" class="hx_input2">)。
                </p>
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            <div>
                <h2 class="tm_title">二、单项或多项选择题(每选项2分,共22分)</h2>
                <p> 1. 焊接件一般选用下列哪些材料(<input name="answer" type="text" class="hx_input2">)。</p>
                <div class="xzt">
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">A.Q235;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">B.HT200;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">C.20#;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">D.6061。</div>
                </div>

                <p> 2. 传动轴一般选用下列哪些材料(<input name="answer" type="text" class="hx_input2">)。</p>
                <div class="xzt">
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">A.Q235;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">B.45#; </div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">C.40Cr;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">D.6061。</div>
                </div>

                <p> 3. 下列哪些材料能同时适用于线切割机、等离子数控切割机、激光切割机加工下料(<input name="answer" type="text" class="hx_input2">)。</p>
                <div class="xzt">
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">A.Q235;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">B.45#;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">C.POM;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">D.PVC。</div>
                </div>

                <p> 4. 一般工业用气的气源气压多少压力(<input name="answer" type="text" class="hx_input2">)。</p>
                <div class="xzt">
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">A.0.1MPa;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">B.6MPa;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">C.0.1Kgf;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">D.6Kgf。</div>
                </div>

                <p> 5. 在链传动中,已知大小齿轮均为13齿,中心距为150.8mm,链条节数为32节,试问是哪一种型号的链条(<input name="answer" type="text" class="hx_input2">)。</p>
                <div class="xzt">
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">A.08B;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">B.10B-2;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">C.12A;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">D.16A。</div>
                </div>

                <p> 6. 在滚珠丝杠传动中,丝杠轴承固定方式为(<input name="answer" type="text" class="hx_input2">)。</p>
                <div class="xzt">
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">A.双支点各单向固定;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">B.一支点双向固定另一端游动;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">C.两端游动支承;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">D.两端均双向固定。</div>
                </div>

                <p> 7. 圆柱齿轮传动,当齿轮直径不变,而减小模数时,可以(<input name="answer" type="text" class="hx_input2">)。</p>
                <div class="xzt">
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">A.提高轮齿的弯曲强度;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">B.提高轮齿的接触强度;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">C.提高轮齿的静强度;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">D.改善传动的平稳性。</div>
                </div>

                <p> 8. 下列哪些轴承是免维护的(<input name="answer" type="text" class="hx_input2">)。</p>
                <div class="xzt">
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">A.6203;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">B.22207;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">C.30205;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">D.7004。</div>
                </div>

                <p> 9. 设计硬齿面齿轮传动,当直径一定时,常取较少的齿数,较大的模数以(<input name="answer" type="text" class="hx_input2">)。</p>
                <div class="xzt">
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">A.提高轮齿的弯曲疲劳强度;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">B.提高齿面的接触疲劳强度;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">C.减少加工切削量,提高生产率;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">D.提高轮齿抗塑性变形能力。</div>
                </div>

                <p> 10. 列哪一配合为间隙配合(<input name="answer" type="text" class="hx_input2">)。</p>
                <div class="xzt">
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">A.H7/k6;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">B.H7/g6;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">C.H7/h6;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">D.H8/n6。</div>
                </div>

                <p> 11. 现一根材料为45#悬臂梁扰度过大,可以通过下列哪种方式减少扰度(<input name="answer" type="text" class="hx_input2">)。</p>
                <div class="xzt">
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">A.通过改善截面形状;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">B.通过热处理工艺;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">C.采用屈服强度更好的材料;</div>
                    <div class="col-lg-3 col-md-6 col-sm-6 col-xs-12">D.采用弹性模量更大的材料。</div>
                </div>
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                <h2 class="tm_title">三、简答题(共27分)</h2>
                <p> 1. 一升降机构在气缸作用下实现上下升降运动,试问如何防止位于最高升降机构在断电情况在不下坠?至少说出三种解决措施。</p>
                <div style="padding:0 30px;">
                    <textarea name="answer" rows="6" class="form-control2" placeholder="这里写答案..." style="height: 120px"></textarea>
                </div>

                <p> 2. 以电机作为原动机,执行件为一往复运动机构,至少拟定三种传动机构将旋转运动转化为直线运动,并画出相应结构原理图。</p>
                <div style="padding:0 30px;">
                    <textarea name="answer" rows="6" class="form-control2" placeholder="这里写答案..." style="height: 120px"></textarea>
                </div>

                <p> 3. 设计一机构,使输送线上托盘居中对齐,至少拟定三种机构,并画出相应结构原理图。</p>
                <div style="padding:0 30px;">
                    <textarea name="answer" rows="6" class="form-control2" placeholder="这里写答案..." style="height: 120px"></textarea>
                </div>
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            <div>
                <h2 class="tm_title">四、计算题(共20分)</h2>
                <p> 1. 如图为一连杆机构,当摆杆所受F<sub>1</sub>=1000N时,顶杆F<sub>2</sub>最小产生多大克服,已知L<sub>1</sub> =500mm、L<sub>2</sub> =200mm、a=30°,忽略一切摩擦力。</p>
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                        <textarea name="answer" rows="6" class="form-control2" placeholder="这里写答案..." style="height: 160px;margin-top: 50px"></textarea>
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                <p> 2. 如图所示螺栓联结中,连杆采用4个螺栓紧固,按圆周分布,直径D=250mm,在距离中心L=500mm位置上垂直于中心线作用一外力F<sub>1</sub> =600N,试问哪个螺栓受力最大,即受力大小、方向?</p>
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                <h2 class="tm_title">五、分析题(共25分)</h2>
                <p>1. 试分析图中的结构有哪些不合理,在图中用箭头标出并说明。(15分)</p>
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                <p>2. 在小批量非标设计中,试分析图中的结构有哪些不合理,在图中用箭头标出并说明。(10分)</p>
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                    answerDetails.forEach(function(obj,index,array){
                        if(index<=23){
                            $("input[name='answer']")[index].value=obj.answer;
                            $("input[name='answer']")[index].readOnly=true;
                        }else{
                            $("textarea[name='answer']")[inputIndex].value=obj.answer;
                            $("textarea[name='answer']")[inputIndex].readOnly=true;

                            if(inputIndex==5){
                                imgSrc=obj.pic;
                                if(imgSrc!=''&&imgSrc!=undefined&&imgSrc!=null){
                                    var boxId = "#img1";
                                    addNewContentV(boxId,imgSrc);
                                }
                            }
                            if(inputIndex==6){
                                imgSrc1=obj.pic;
                                if(imgSrc1!=''&&imgSrc1!=undefined&&imgSrc1!=null){
                                    var boxId = "#img2";
                                    addNewContentV(boxId,imgSrc1);
                                }
                            }

                            inputIndex++;
                        }
                    });
                } else {

                }
            }
        });
    }
    //图片展示
    function addNewContentV(obj,imgSrcs) {
        // console.log(imgSrc)
        $(obj).html("");
        var imgSrc=imgSrcs.split(",");
        for (var a = 0; a < imgSrc.length; a++) {
            if(imgSrc[a]!=''&&imgSrc[a]!=undefined){
                var oldBox = $(obj).html();
                $(obj).html(oldBox + '<li class="content-img-list-item"><img src="' + imgSrc[a] + '" alt="">' +
                    '<div class="hide"><a index="' + a + '" class="delete-btn"><i class="gcl gcllajitong"></i></a>' +
                    '<a  index="' + a + '" class="big-btn" type="button" data-toggle="modal" data-target=".bs-example-modal-lg"><i class="gcl gclfangda"></i></a></div></li>');

            }
        }
    }
    $(document).ready(function(){
        getAnswerByPhone()
    });
</script>
<style type="text/css">
    @media print {
        .noprint{display:none;}
    }
</style>

<script type="text/javascript" th:src="@{/js/jquery.jqprint-0.3.js}" ></script>

<script type="text/javascript">
    function a(){
        $("#btn1").hide();
        $("#btn2").hide();
        $("#ddd").jqprint();
    }
</script>
</body>
</html>