[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fK-AwE74uF1ocfOOcurWLJbYxyRzrwgtWKAOGzLqvLV0":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":17,"related":18,"source":28,"type":68},[],"2025-12-03 12:39:11",217517832,[8,9],"正确","错误",{"count":11,"courseId":12,"courseImg":13,"courseName":14,"workId":15,"workName":16},11,"aacdb7ee1d6292ea00604f45ce53bed5","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fdd42b8d75c4694358d0d0d763b302e92.jpg","机械设计基础","work_45852929","蜗杆传动","蜗轮常用较贵重的青铜材料制造是因为青铜抗胶合和耐磨,减磨性能好",[19,30,39,47,56,65,69,74,79,84],{"answer":20,"createTime":21,"id":22,"options":23,"question":27,"source":28,"type":29},[],"2025-09-21 11:41:49",217517827,[24,25,26],"采用高强度合金钢","提高蜗杆的硬度","增大蜗杆直径系数q值","为提高蜗杆的刚度应采取的措施是( )","v1",0,{"answer":31,"createTime":21,"id":32,"options":33,"question":38,"source":28,"type":29},[],217517828,[34,35,36,37],"ma1=mt2=m","&alpha;a1=&alpha;t2=&alpha;","&beta;1=&plusmn;&beta;2","螺旋线方向相同","蜗杆与蜗轮正确啮合条件中,没有______",{"answer":40,"createTime":21,"id":41,"options":42,"question":46,"source":28,"type":29},[],217517829,[43,44,45],"端面","法面","轴面","阿基米德圆柱蜗杆的______模数,应符合标准数值",{"answer":48,"createTime":21,"id":49,"options":50,"question":55,"source":28,"type":29},[],217517830,[51,52,53,54],"钢和铸铁","钢和青铜","钢和铝合金","钢和钢","蜗杆传动较为理想的材料组合是______",{"answer":57,"createTime":21,"id":58,"options":59,"question":64,"source":28,"type":29},[],217517831,[60,61,62,63],"单头.小导程角","单头.大导程角","多头.小导程角","多头.大导程角","起重吊物用的手动蜗杆传动装置,宜采用______蜗杆",{"answer":66,"createTime":5,"id":6,"options":67,"question":17,"source":28,"type":68},[],[8,9],3,{"answer":70,"createTime":21,"id":71,"options":72,"question":73,"source":28,"type":68},[],217517833,[8,9],"蜗杆传动的转速比n1∕n2等于其分度圆直径的反比d2∕d1",{"answer":75,"createTime":21,"id":76,"options":77,"question":78,"source":28,"type":68},[],217517834,[8,9],"两轴线空间交错成90度的蜗杆传动中,蜗杆和蜗轮螺旋方向应相同",{"answer":80,"createTime":21,"id":81,"options":82,"question":83,"source":28,"type":68},[],217517835,[8,9],"标准普通圆柱蜗杆转动的中心距是a=m(z1+z2)\u002F2",{"answer":85,"createTime":21,"id":86,"options":87,"question":88,"source":28,"type":68},[],217517836,[8,9],"蜗轮常用较贵重的青铜材料制造是因为青铜抗胶合和耐磨,减摩性能好"]