[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$frko5JtnK_eDnZISOVQL31FLKfJ4hEjhSDQl518Cf25s":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":14,"question":21,"related":22,"source":32,"type":104},[],"2025-11-08 23:23:55",230958561,[8,9,10,11,12,13],"增大小齿轮分度圆直径d1","采用正传动","降低齿面硬度","减低粗糙度,提高加工精度","d1不变,增大齿数","增大齿宽",{"count":15,"courseId":16,"courseImg":17,"courseName":18,"workId":19,"workName":20},305,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_47648557","第一章中国国防","提高轮齿接触疲劳强度的措施有",[23,34,43,52,61,69,78,86,94,105],{"answer":24,"createTime":5,"id":25,"options":26,"question":31,"source":32,"type":33},[],230958552,[27,28,29,30],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff14b1f247150b3928cd460694682a578.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1ea4165ded7d7d9eb274052c965446a8.png\">","b1=b2","d1=d2","一对标准直齿圆柱齿轮接触强度相等的条件是","v1",0,{"answer":35,"createTime":5,"id":36,"options":37,"question":42,"source":32,"type":33},[],230958553,[38,39,40,41],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd058a46ce6d7863eebb062bdf0e90c4d.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4e6942dec97050664c0af86d74506194.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F92ac5bd4432d9599af4c365727ec2f4d.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff94aff0f59d9137083b27ebbddc12488.png\">","一标准直齿圆柱齿轮传动,其他条件均不变,仅将齿轮的宽度增大一倍,则轮齿的齿根弯曲应力\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5ced4c8aff804bdac2c11e5cdb057005.png\">与原来的\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2d559ec12ffd477d1f9b68452536e67d.png\">相比较,有",{"answer":44,"createTime":5,"id":45,"options":46,"question":51,"source":32,"type":33},[],230958554,[47,48,49,50],"提高齿轮的接触疲劳强度","提高轮齿的弯曲疲劳强度","弯曲与接触强度都不变","弯曲与接触强度都提高","直齿圆柱齿轮设计中,若中心距不变,增大模数m,则",{"answer":53,"createTime":5,"id":54,"options":55,"question":60,"source":32,"type":33},[],230958555,[56,57,58,59],"相同","第2个比第1个大","第1个比第2个大","承载能力与模数无关","两个齿轮的材料、齿宽、齿数都相同,模数m1=2mm,模数m2=4mm,则它们的弯曲强度",{"answer":62,"createTime":5,"id":63,"options":64,"question":68,"source":32,"type":33},[],230958556,[65,48,66,67],"改善传动的平稳性","提高齿面的接触疲劳强度","提高轮齿的静强度","对于圆柱齿轮传动,保持齿轮的分度圆直径不变而减小模数时,可以",{"answer":70,"createTime":5,"id":71,"options":72,"question":77,"source":32,"type":33},[],230958557,[73,74,75,76],"弯曲强度和接触强度均提高","弯曲强度不变,接触强度提高","弯曲强度和接触强度均不变","弯曲强度提高,接触强度不变","设计一对齿轮传动时,若保持传动比和齿数不变而增大模数,则齿轮的",{"answer":79,"createTime":5,"id":80,"options":81,"question":85,"source":32,"type":33},[],230958558,[82,38,83,84],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fea0f215e9b2d1ce65115c3ea7bd4a47b.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F306834e3c5b390c351d2527d49819141.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F50e86a6767e27caf714f1ceaa8077acb.png\">","一标准直齿圆柱齿轮传动,其他条件均不变,仅将齿轮的齿数增大一倍,则轮齿的齿根弯曲应力\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5ced4c8aff804bdac2c11e5cdb057005.png\">与原来的\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2d559ec12ffd477d1f9b68452536e67d.png\">相比较,有",{"answer":87,"createTime":5,"id":88,"options":89,"question":93,"source":32,"type":33},[],230958559,[90,91,92],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F831432eb073e9912d250a2e37dd8d19a.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff4de7da70ecfd8c07100d9a1aa59df97.png\">","比较\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9d2357b8d8541a4040ec947589b95e25.png\">和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F33baca055819870e5d0a53d40cadc83c.png\">较大者强度高","比较两个齿轮的接触强度,可以用 来判别",{"answer":95,"createTime":5,"id":96,"options":97,"question":103,"source":32,"type":104},[],230958560,[98,99,100,101,102,13],"增大模数","减小齿根过渡圆角半径","负变位","提高齿面硬度","降低表面粗糙度,减小加工损伤","提高齿根弯曲疲劳强度的措施有",1,{"answer":106,"createTime":5,"id":6,"options":107,"question":21,"source":32,"type":104},[],[8,9,10,11,12,13]]