1) tolerance group Ⅱ
第Ⅱ公差组
1.
This paper mainly discusses the effects of the cyclic error of machine tool and the error of cutter on the tooth error of gear, derives the mathematical model, and outlines the relation be- tween the tolerance group Ⅱ and the model.
这部分的主要内容是论述机床周期误差、刀具误差对齿形误差的影响,导出了有关计算的数学模型以及与第Ⅱ公差组的关系。
2) tolerance group Ⅰ
第Ⅰ公差组
3) error of type II
Ⅱ型错误,第二类误差
4) tolerance group
公差组
1.
The accuracy of cycloid gears has three kinds of tolerance groups.
摆线齿轮精度有三个公差组等级 ,其中第Ⅰ公差组的精度指标包括切向综合公差Fi′、径向综合公差Fi″、齿距累积公差Fp′和齿圈径向跳动公差Fr,对应的测量方法可借鉴渐开线齿轮的测量方法。
2.
According to the structure characteristics of cycloid gear, the accuracy items such as f i ′(tangential synthetic tolerance of neighboring teeth), f i ″(radial synthetic tolerance of neighboring teeth),± f pt (limit deviation of pitch) and f f (tooth tolerance) are regulated in the tolerance group II, F β(axial tolerance of profile) an.
根据摆线齿轮结构特点 ,第II公差组内规定了一齿切向综合公差fi′、一齿径向综合公差fi″、齿距极限偏差±fpt、齿形公差ff 等精度项目 ;第III公差组内规定了齿向公差Fβ 及齿轮接触斑点。
3.
The program is easy to operate and can be used promptly and correctly to determine the class of accuracy of the three tolerance groups, the code of limit divergence for tooth thickness, the check items and tolerance values of each tolerance item.
该软件操作简单、能迅速正确地确定齿轮三个公差组的精度等级、齿厚极限偏差代号、各公差组的检验项目及其公差值。
5) tolerance of unit ring
组成环公差
1.
During machine design, tolerance of unit ring in assembly dimension chain is usually determined by using either equal tolerance or equal accuracy method.
在机械设计中 ,装配尺寸链的组成环公差 ,一般是采用等公差法或等精度法来确定。
6) crystal form Ⅱ
第Ⅱ晶型
补充资料:再下第
【诗文】:
一夕九起嗟,梦短不到家。两度长安陌,空将泪见花。
【注释】:
【出处】:
全唐诗:卷374-35
一夕九起嗟,梦短不到家。两度长安陌,空将泪见花。
【注释】:
【出处】:
全唐诗:卷374-35
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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