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SSSS tttt rrrr uuuu cccc tttt uuuu rrrr eeee o o o o ffff r r r r oooo llll llll iiii nnnn gggg b b b b eeee aaaa rrrr iiii nnnn gggg ssss 滚滚滚滚 动动动动 轴轴轴轴.

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Presentation on theme: "SSSS tttt rrrr uuuu cccc tttt uuuu rrrr eeee o o o o ffff r r r r oooo llll llll iiii nnnn gggg b b b b eeee aaaa rrrr iiii nnnn gggg ssss 滚滚滚滚 动动动动 轴轴轴轴."— Presentation transcript:

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2 SSSS tttt rrrr uuuu cccc tttt uuuu rrrr eeee o o o o ffff r r r r oooo llll llll iiii nnnn gggg b b b b eeee aaaa rrrr iiii nnnn gggg ssss 滚滚滚滚 动动动动 轴轴轴轴 承承承承 的的的的 结结结结 构构构构 TTTT yyyy pppp eeee ssss o o o o ffff r r r r oooo llll llll iiii nnnn gggg b b b b eeee aaaa rrrr iiii nnnn gggg ssss 滚滚滚滚 动动动动 轴轴轴轴 承承承承 的的的的 分分分分 类类类类 Rolling bearing codes 滚滚滚滚 动动动动 轴轴轴轴 承承承承 的的的的 代代代代 号号号号 Representation of rolling bearings 滚滚滚滚 动动动动 轴轴轴轴 承承承承 的的的的 画画画画 法法法法 轴承 Bearings 轴承请点击相应标题显示其内容

3 Structure of rolling bearings 滚动轴承的结构 Two types of bearings are used to support a shaft, i.e. sliding and rolling bearings. With small friction, high rotation flexibility and easy to maintain, rolling bearings are widely used standard components of mechanical equipment. Two types of bearings are used to support a shaft, i.e. sliding and rolling bearings. With small friction, high rotation flexibility and easy to maintain, rolling bearings are widely used standard components of mechanical equipment. 轴承分为滑动轴承和滚动轴承,用于支撑轴。滚动轴承的 摩擦阻力小,转动灵活,维修方便,是机械设备中广泛应用的 一种标准件。 轴承分为滑动轴承和滚动轴承,用于支撑轴。滚动轴承的 摩擦阻力小,转动灵活,维修方便,是机械设备中广泛应用的 一种标准件。请点击鼠标左键显示后面内容

4 1) Inner race Tightly mounted on the shaft and rotating with it. 内圈 紧密套装在轴上, 随轴旋转; 内圈 紧密套装在轴上, 随轴旋转; 请点击鼠标左键显示后面内容 The structure of rolling bearings consists of four components 滚动轴承的结构一般由四个元件组成 滚动轴承的结构一般由四个元件组成 : Structure of rolling bearings 滚动轴承的结构 Outer race 外圈 外圈 Cage Cage保持架 Inner race 内圈 内圈 Rolling elements 滚动体 滚动体 2) Outer race Mounted on the bearing’s bracket hole and fastened. 外圈 装在轴承座的孔内, 固定不动; 外圈 装在轴承座的孔内, 固定不动; 3) Rolling elements Located between the inner and outer rings. They include the inner and outer rings. They include balls, columns, and cones. balls, columns, and cones. 滚动体 形式有圆球、圆柱、圆锥等, 滚动体 形式有圆球、圆柱、圆锥等, 排列在内、外圈之间; 排列在内、外圈之间; 4) Cage Used to isolate the rolling element. 保持架 用来把滚动体隔开。 保持架 用来把滚动体隔开。

5 Types of rolling bearings 滚动轴承的分类 请点击鼠标左键显示后面内容 it bears both the radial and axial loads. Such as the (3) Radial thrust bearing it bears both the radial and axial loads. Such as the tapered roller bearing. 向心推力轴承 能同时承受径向载荷和轴向载荷, 如圆锥滚子轴承。 it only bears the axial load. Such as thrust bearings. (2) Thrust bearing it only bears the axial load. Such as thrust bearings. 推力轴承 只承受轴向载荷,如推力球轴承。 used to bear the radial load. Such as deep groove ball bearings. (1)Radial bearing used to bear the radial load. Such as deep groove ball bearings. 向心轴承 主要用于承受径向载荷,如深沟球轴承。 向心轴承 主要用于承受径向载荷,如深沟球轴承。

6 Width or height series 宽(高)度系列代号 Table 2-18 ~ Table 2-20 附录表 2-18 ~ Table 2-20 Table 2-17 附录表 2-17请点击鼠标左键显示后面内容 Rolling bearing codes 滚动轴承的代号 According to national standards, structure, dimension, tolerance degree and technical requirements are represented by the code of the rolling bearing. 按国家标准规定,滚动轴承的结构尺寸、公差等级、技术性能等特性由 按国家标准规定,滚动轴承的结构尺寸、公差等级、技术性能等特性由滚动轴承代号来表示。 The bearing type code 轴承类型代号 Dimension series code 尺寸系列代号 Inner diameter code 内径代号 Pre-code 前置代号 Base code 基本代号 Post-code 后置代号 00  d=10 mm 00  d=10 mm 01  d=12 mm 01  d=12 mm 02  d=15 mm 02  d=15 mm 03  d=17 mm 03  d=17 mm Upwards of04 : Upwards of 04 : (04 以上 ) (04 以上 ) d = xx  5 mm d = xx  5 mm The pre- and post-codes are supplementary codes.. 基本代号是轴承代号的基础 The pre- and post-codes are supplementar y codes. 前置代号、后置 代号是补充代号

7 请点击鼠标左键显示后面内容. Example 1. Bearings 6206 Rolling bearing codes 滚动轴承的代号 6 2 06 Inner diameter code ( inner diameter=inner diameter code×5 ) representing 30mm. 。 轴承内径代号(内径尺寸 = 内径代号 ×5 )表示公称内径 30mm 。 Dimension series code, “(0)2” is width series code 0,Dimension series code 2,“0”omitted. 轴承尺寸系列代号, “ (0)2 ” 表示宽度系列代号 0, 直径系列代号 2, “ 0 ” 省略不标注。 Type code, “6”is the deep groove ball bearing. 轴承类型代号, “ 6 ” 表示深沟球轴承。 Specified symbol: Bearings 6206 GB/T 276 — 1994 滚动轴承 规定标记为:滚动轴承 6206 GB/T 276 — 1994 Example 2. Bearing 51210 5 12 10 Inside diameter code, d=10×5=50mm 轴承内径代号, d=10×5mm=50mm 。 Dimension series code, “12” represents the height series code 1 and the diameter series code 2. 轴承尺寸系列代号, “ 12 ” 表示高度系列代号 1 ,直径系列代号 2 。 Type code, “5” is thrust ball bearing. 轴承类型代号, “ 5 ” 表示推力球轴承。 Specified symbol: Bearings 51210 GB/T 301 — 1995 滚动轴承 规定标记为:滚动轴承 51210 GB/T 301 — 1995

8 Being a standard component, there is no need to draw rolling bearings. The Being a standard component, there is no need to draw rolling bearings. The assembly drawing can be drafted according to simplified representation specified in the relevant national standard. in the relevant national standard. When drafting, the external diameter D, inner diameter d and width B should first When drafting, the external diameter D, inner diameter d and width B should first be found out after consulting the National Standard following bearing codes. be found out after consulting the National Standard following bearing codes. Other dimensions can be drawn proportionally to the primary dimensions. Other dimensions can be drawn proportionally to the primary dimensions. 滚动轴承是标准件, 不需要画零件图。在画装配图时可根据国家标准所规 滚动轴承是标准件, 不需要画零件图。在画装配图时可根据国家标准所规定的规定画法或简化画法表示。 画图时,应根据轴承代号由国家标准中查出轴承的外径 D 、内径 d 、宽度 B 画图时,应根据轴承代号由国家标准中查出轴承的外径 D 、内径 d 、宽度 B等几个主要尺寸,然后,将其他部分的尺寸,按与主要尺寸的比例关系画出。 请点击鼠标左键显示后面内容 Representation of rolling bearings 滚 动 轴 承 的 画 法 滚 动 轴 承 的 画 法 Row deep groove ball bearing Row thrust ball bearing Tapered roller bearing 深沟球轴承 推力球轴承 圆锥滚子轴承 ( 60000 型) GB/T 276—1994 ( 50000 型) GB/T 301—1995 ( 30000 型) GB/T 297—1994 画图方法 画图方法 画图方法 画图方法 画图方法

9 If the primary structure of the rolling bearing needs to be represented in a more detailed way, a specified representation can be adopted when drawing the assembly. If on the contrary the primary structure of the rolling bearing needs to be represented in a simple way, the simplified representation can be used. If the primary structure of the rolling bearing needs to be represented in a more detailed way, a specified representation can be adopted when drawing the assembly. If on the contrary the primary structure of the rolling bearing needs to be represented in a simple way, the simplified representation can be used. 在装配图中, 需要较详细地表达滚动轴承的主要结构时, 可采用规定画法 ; 仅需要简单地表达滚动轴承的主要结构时, 可采用简化画法(特征画法)。 在装配图中, 需要较详细地表达滚动轴承的主要结构时, 可采用规定画法 ; 仅需要简单地表达滚动轴承的主要结构时, 可采用简化画法(特征画法)。 请点击鼠标左键显示后面内容 Representation of rolling bearings 滚动轴承的画法 滚动轴承的画法 英国图例

10 本 章 结 束 谢谢您的认真学习! 前一页

11 Row deep groove ball bearing ( Type 60000 ) 深沟球轴承( 60000 型) 深沟球轴承( 60000 型) Simplified representation 简化画法 Specified representation 规定画法 Structure of bearings 结构型式

12 Row thrust ball bearing ( Type 51000 ) 推力球轴承( 51000 型) Simplified representation 简化画法 Specified representation 规定画法 Structure of bearings 结构型式

13 Tapered roller bearing ( Type30000 ) 圆锥滚子轴承( 30000 型) Structure of bearings 结构型式 Simplified representation 简化画法 Specified representation 规定画法

14 Types and codes of bearing 轴承的类型及代号 Code ( 代号 ) Types of bearings ( 轴承类型 ) 0 Double row angular contact ball bearing( 双列角接触球轴承 ) 1 Self-aligning ball bearing( 调心球轴承 ) 2 Self-aligning roller bearing and thrust self-aligning roller bearing ( 调心滚子轴承和推力调 心滚子轴承 ) 3 Tapered roller bearing( 圆锥滚子轴承 ) 4 Double row deep groove ball bearing( 双列深沟球轴承 ) 5 Row thrust ball bearing ( 推力球轴承 ) 6 Row deep groove ball bearing( 深沟球轴承 ) 7 Angular contact ball bearing( 角接触球轴承 ) 8 Row thrust column roller bearing( 推力圆柱滚子轴承 ) N Row column roller bearing, double or multiple rows represented by “NN”( 圆柱滚子轴承 双列或多列用字母 NN 表示 ) U External spherical surface ball bearing( 外球面球轴承 ) QJ Four-point contact ball bearing( 四点接触球轴承 )

15 Representation of rolling bearings 滚动轴承的画法 滚动轴承的画法


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