[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fyywE5A_STgLNyq81ljHLsnKO2wklAzeZXdjuyjnWcEg":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":28,"type":29},[],"2023-11-26 21:12:29",108849924,[8,9,10,11],"轴径和轴承表面之间有相对滑动","轴颈和轴承间构成楔形间隙","润滑油温度不超过50℃","充分供应润滑油",{"courseId":13,"courseImg":14,"courseName":15},"fa4366003be1ac9e5939c2386fd44089","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F46f72f01a3196334d3fdd3a9e67fe863.png","机械设计","动压滑动轴承能建立油压的条件中,不必要的条件是",[18,30,39,48,57,66,75,78,87,96],{"answer":19,"createTime":20,"id":21,"options":22,"question":27,"source":28,"type":29},[],"2023-11-26 21:12:28",108849907,[23,24,25,26],"带绕过带轮产生了离心力","带传递的中心距大","带与带轮之间的摩擦系数较小","带的弹性与紧边和松边存在拉力差","带传动在工作中产生弹性滑动的原因是( )","v1",0,{"answer":31,"createTime":20,"id":32,"options":33,"question":38,"source":28,"type":29},[],108849910,[34,35,36,37],"45钢齿面高频淬火","40Cr调质","适当增大模数m","铸钢ZG310-570","一对45钢调质齿轮,过早的发生了齿面点蚀,更换时可用( )的齿轮代替",{"answer":40,"createTime":20,"id":41,"options":42,"question":47,"source":28,"type":29},[],108849912,[43,44,45,46],"先按弯曲强度条件计算","先按磨损条件计算","先按胶合条件计算","先按接触强度条件计算","对于齿面硬度HB≤350的闭式齿轮传动设计时一般( )",{"answer":49,"createTime":20,"id":50,"options":51,"question":56,"source":28,"type":29},[],108849914,[52,53,54,55],"增加","不变","减小","增加或减小","在标准蜗轮传动中,蜗杆头数一定,加大蜗杆特性系数将使传动效率",{"answer":58,"createTime":5,"id":59,"options":60,"question":65,"source":28,"type":29},[],108849917,[61,62,63,64],"由调质改为淬火","齿轮负变位","适当增加齿宽","直径不变增大模数","在下面的各种方法中,( )_不能增加齿轮轮齿的弯曲疲劳强度",{"answer":67,"createTime":5,"id":68,"options":69,"question":74,"source":28,"type":29},[],108849922,[70,71,72,73],"轴承精度等级与结构特点","轴承游隙组别与精度等级","轴承的厂牌名称","对轴承制造提出的特殊要求","滚动轴承代号由三段组成,其中后段为补充代号,用来表示( )",{"answer":76,"createTime":5,"id":6,"options":77,"question":16,"source":28,"type":29},[],[8,9,10,11],{"answer":79,"createTime":5,"id":80,"options":81,"question":86,"source":28,"type":29},[],108849929,[82,83,84,85],"应力计算","硬度计算","寿命计算","静强度计算","一般转速的滚动轴承,其主要失效形式是疲劳点蚀,因此应进行轴承的( )",{"answer":88,"createTime":5,"id":89,"options":90,"question":95,"source":28,"type":29},[],108849933,[91,92,93,94],"变位系数","斜齿轮的螺旋角","模数","齿数","轮齿弯曲强度计算中齿形系数与()无关",{"answer":97,"createTime":5,"id":98,"options":99,"question":104,"source":28,"type":29},[],108849939,[100,101,102,103],"带的紧边拉力","带的松边拉力","带传递的功率和小带轮转速","带的线速度","选取V带型号,主要取决于( )"]