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JBT 2300-2018 回转支承国家标准pdf

2021-01-03 09:52

  ICS 53.100 P 97 备案号: 中华人民共和国机械行业标准 JB/T 2300—×××× 代替JB/T 2300—2011 回 转 支 承 Slewing bearings (报批稿) ××××-××-××发布 ××××-××-××实施 中华人民共和国工业和信息化部发布 JB/T 2300—×××× 目 次 前言 ·························································································································Ⅱ 1 范围··························································································································1 2 规范性引用文件 ··········································································································1 3 符号··························································································································1 4 分类和标记·················································································································3 4.1 形式·······················································································································3 4.2 基本参数·················································································································6 4.3 标记·······················································································································6 5 要求··························································································································6 5.1 零件·······················································································································6 5.2 总成·····················································································································19 5.3 选型计算···············································································································2 1 5.4 承载能力曲线·········································································································21 5.5 其他要求···············································································································21 6 检测方法··················································································································2 1 6.1 零件的检测············································································································2 1 6.2 总成装配精度的测量································································································2 1 7 检验规则··················································································································22 7.1 出厂检验···············································································································22 7.2 型式检验···············································································································22 7.3 判定规划···············································································································23 7.4 其他要求···············································································································23 8 标志、包装、运输与贮存 ····························································································23 8.1 标志·····················································································································23 8.2 包装·····················································································································23 8.3 运输与贮存············································································································24 附录A (资料性附录) 回转支承的选型计算方法································································25 附录B (资料性附录) 回转支承承载能力曲线···································································28 参考文献······················································································································47 Ⅰ JB/T 2300—×××× 前 言 本标准按照GB/T 1.1—2009 给出的规则起草。 本标准代替JB/T 2300—2011 《回转支承》。本标准与JB/T 2300—2011 相比,主要技术变化如下: ——修改了表7 的内容 (见表7,20 11 年版的表7 ); ——修改了表8 的内容 (见表8,20 11 年版的表8 ); ——修改了总成的内容(见5.2,20 11 年版的5.2 ); ——修改了检测方法的内容 (见第6 章,20 11 年版的第6 章); ——修改了检验规则的内容 (见第7 章,20 11 年版的第7 章); ——修改了承载能力曲线 ); ——增加了寿命试验方法(见B.3 )。 本标准由中国机械工业联合会提出。 本标准由全国土方机械标准化技术委员会 (SAC/TC 334 )归口。 本标准起草单位:马鞍山方圆精密机械有限公司、徐州罗特艾德回转支承有限公司、马鞍山统力回 转支承有限公司、天津工程机械研究院有限公司。 本标准主要起草人:鲍治国、罗霏、许丽华、邓艳芳、戴永奋、窦征。 本标准所代替标准的历次版本发布情况为: ——JB 2300—1978、JB/T 2300—1984、JB/T 2300—1999、JB/T 2300—2011 。 II JB/T 2300—×××× 回 转 支 承 1 范围 本标准规定了回转支承的符号、分类和标记、要求、检测方法、检验规则、标志、包装、运输和贮存。 本标准适用于工程机械、矿山机械、港口机械、建筑机械及其他需要两部分相对回转运动的机械用 回转支承。 2 规范性引用文件 下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件,仅注日期的版本适用于本文件。 凡是不注日期的引用文件,其最新版本(包括所有的修改单)适用于本文件。 GB/T 308.1 滚动轴承 球 第1 部分:钢球 GB/T 699 优质碳素结构钢 GB/T 1357 通用机械和重型机械用圆柱齿轮 模数 GB/T 3077 合金结构钢 GB/T 4661 滚动轴承 圆柱滚子 GB/T 5617 钢的感应淬火或火焰淬火后有效硬化层深度的测定 GB/T 6394 金属平均晶粒度测定法 GB/T 10095.1—2008 圆柱齿轮 精度制 第1 部分:轮齿同侧齿面偏差的定义和允许值 GB/T 10095.2—2008 圆柱齿轮 精度制 第2 部分:径向综合偏差与径向跳动的定义和允许值 GB/Z 18620.1—2008 圆柱齿轮 检验实施规范 第1 部分:轮齿同侧齿面的检验 GB/Z 18620.2—2008 圆柱齿轮 检验实施规范 第2 部分:径向综合偏差、径向跳动、齿厚和侧 隙的检验 JB/T 5947 工程机械 包装通用技术条件 JB/T 7940.7 油杯 技术条件 HG/T 2349 聚酰胺1010 树脂 HG/T 2811 旋转轴唇形密封圈橡胶材料 3 符号 回转支承各部位名称及符号见表1 和图1。 1 JB/T 2300—×××× 表1 各部位名称及符号 符号 名 称 符号 名 称 DL (上排)滚道中心圆直径 n 安装孔个数 DW (上排)滚动体直径 n1 油孔个数 D 1 外圈安装孔分布圆直径 dn1 外圈安装孔直径 D2 内圈安装孔分布圆直径 dn2 内圈安装孔直径 D 公称外径 dm1 外圈安装螺纹孔直径 d 公称内径 dm2 内圈安装螺纹孔直径 d1 外圈内径 L 安装孔螺纹长度 D3 内圈外径 da 齿顶圆直径 H 总高 m 模数 H 1 内、外圈高度 x 齿轮径向变位系数 h 内、外圈两端面高度差 z 齿数 DS 有效硬化层深度 b 齿宽 注:此图的外圈由上圈和下圈构成。 a) 无齿式 图1 回转支承各部位名称及符号 (以三排滚柱式回转支承为例) 2 JB/T 2300—×××× 注:此图的内圈由上圈和下圈构成。 b) 外齿式 图1 (续) 4 分类和标记 4.1 形式 4.1.1 结构形式 回转支承由套圈(内圈、外圈、上/下圈)、滚动体、隔离块、密封带和油杯等组成,按结构形式分 为四个系列: A ) 单排四点接触球式回转支承(01 系列)见图2 ; b ) 双排异径球式回转支承(02 系列)见图3,其滚动体公称直径组合为上排/下排:25/20 、30/25、 40/30 、50/40、60/50; c ) 单排交叉滚柱式回转支承(11 系列)见图4 ,其滚动体为1 ∶1 成90°交叉排列; d ) 三排滚柱式回转支承(13 系列)见图5,其滚动体公称直径组合为上排/下排/径向:25/20/16、 32/25/20、40/32/25 、45/32/25 、50/40/25 。 4.1.2 传动形式 按传动形式分为: a ) 0—无齿式; b ) 1—渐开线圆柱齿轮外齿啮合较小模数; c ) 2—渐开线圆柱齿轮外齿啮合较大模数; d ) 3—渐开线圆柱齿轮内齿啮合较小模数; e ) 4—渐开线圆柱齿轮内齿啮合较大模数。 3 JB/T 2300—×××× a) a) b) b) c) c) 注:内外圈安装孔可为光孔或螺纹孔(图3~图5 与 此注相同,螺孔形式同图2 ,并省略DW 标注)。 图2 单排四点接触球式回转支承 (01 系列) 图3 双排异径球式回转支承 (02 系列) 4 JB/T 2300—×××× a) a) b) b) c) c) 图4 单排交叉滚柱式回转支承 (11 系列) 图5 三排滚柱式回转支承 (13 系列) 5 JB/T 2300—×××× 4.1.3 安装配合形式 按安装配合形式分为: a ) 0—标准型无止口; b ) 1—标准型有止口; c ) 2—特殊型。 4.1.4 安装孔形式 按安装孔形式分为: a ) 0—内、外圈安装孔均为光孔; b ) 1—内、外圈安装孔均为螺纹孔; c ) 2—内圈安装孔为螺纹孔,外圈安装孔为光孔; d ) 3—外圈安装孔为螺纹孔,内圈安装孔为光孔。 4.2 基本参数 4.2.1 单排四点接触球式回转支承系列基本参数见表2 。 4.2.2 双排异径球式回转支承系列基本参数见表3 。 4.2.3 单排交叉滚柱式回转支承系列基本参数见表4 。 4.2.4 三排滚柱式回转支承系列基本参数见表5 。 4.3 标记 4.3.1 型号标记方法 回转支承 ×××. ××. ××××. ×× JB/T 2300 安装孔形式:0,1,2 ,3 (见4.1.4 ) 安装配合形式:0,1,2 (见4.1.3 ) 滚道中心圆直径DL ,单位为毫米(mm ) 滚动体直径DW ,单位为毫米(mm ) 传动形式:0,1,2 ,3,4 (见4.1.2 ) 结构形式:01,02,11,13 (见4.1.1 ) 4.3.2 型号标记示例 单排四点接触球式,内齿啮合较大模数,滚动体直径为40 mm ,滚道中心圆直径为1 000 mm ,标 准型有止口,内、外圈安装孔均为光孔的回转支承,其产品型号标记如下 : 回转支承 014.40.1000.10 JB/T 2300 5 要求 5.1 零件 5.1.1 滚动体 5.1.1.1 钢球应符合GB/T 308.1 的规定,其公差等级应符合表6 的规定。 5.1.1.2 圆柱滚子应符合GB/T 4661 的规定,其公差等级应选用Ⅲ级。贵州快3, 6 表 2 单排四点接触球式回转支承系列基本参数 基 本 型 号 外形尺寸 安装孔尺寸 结构尺寸 齿轮参数 外齿参数 内齿参数 序 dn1 dm1 D d H D 1 D2 L D3 d1 H 1 h b m da da 号 无齿式 外齿式 内齿式 dn2 dm2 n n1 z z mm mm mm 1 010.20.200 011.20.200 — 280 120 248 152 201 199 300 98 — — 12 3 2 010.20.224 011.20.224 — 304 144 272 176 225 223 321 105 — — 60 16 M14 28 50 40 3 010.20.250 011.20.280 — 330 170 298 202 251 249 352 86 — — 18 4 4 010.20.280 011.20.280 — 360 200 328 232 281 279 348 94 — — 2 5 010.25.315 011.25.315 013.25.315 408 222 372 258 316 314 435 85 190 40 20 5 6 010.25.355 011.25.355 013.25.355 448 262 412 298 356 354 475 93 235 49 70 60 50 7 010.25.400 011.25.400 013.25.400 493 307 457 343 401 399 528 86 276 48 24 6 8 010.25.450 011.25.450 013.25.450 543 357 507 393 451 449 576 94 324 56 011.30.500 013.30.500 5 629 123 367 74 9 010.30.500 498 012.30.500 014.30.500 6 628.8 102 368.4 62 602 398 566 434 501 10 011.25.500 013.25.500 5 629 123 367 74 10 010.25.500 499 012.25.500 014.25.500 6 628.8 102 368.4 62 18 M16 32 20 011.30.560 013.30.560 5 689 135 427 86 11 010.30.560 558 012.30.560 014.30.560 6 688.8 112 428.4 72 662 458 80 626 494 4 561 70 60 011.25.560 013.25.560 5 689 135 427 86 12 010.25.560 559 012.25.560 014.25.560 688.8 112 428.4 72 6 011.30.630 013.30.630 772.8 126 494.4 83 J 13 010.30.630 628 012.30.630 014.30.630 8 774.4 94 491.2 62 B / T 732 528 696 564 24 631 011.25.630 013.25.630 6 772.8 126 494.4 83 2 3 14 010.25.630 629 0 0 012.25.630 014.25.630 8 774.4 94 491.2 62 — x x x 7 x 8 表2 (续) J B / T 基 本 型 号 外形尺寸 安装孔尺寸 结构尺寸 齿轮参数 外齿参数 内齿参数 2

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