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gear     
相关语句
  齿轮
     Study on the Theory and the Numerical Simulation of the Characteristics of Polymer Gear Pump
     聚合物齿轮泵特性理论研究及数值模拟
短句来源
     Study on Some Basic Problems about Carburizing-Warmextruding Technologyf or Spur Gear
     直齿圆柱齿轮渗碳—温挤压成形技术几个基本问题的研究
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     Vibration Analysis and Diagnosis on the Fault of the Gear and Rolling Element Bearing
     齿轮与滚动轴承故障的振动分析与诊断
短句来源
     The Study of Key Technologies of Gear Laser Surface Treatment
     齿轮激光表面处理的若干关键技术研究
短句来源
     Study on Opened-die Forming for High Property Spur Gear
     高性能直齿圆柱齿轮开放成形研究
短句来源
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  齿
     Study on Some Basic Problems about Carburizing-Warmextruding Technologyf or Spur Gear
     直齿圆柱齿轮渗碳—温挤压成形技术几个基本问题的研究
短句来源
     Research on Digitized Method of Conjugate Surfaces and Conjugate Crown Gear Coupling Transmission
     共轭曲面的数字化方法及共轭鼓形齿联轴器传动研究
短句来源
     Machining Error Analysis and Experiment Study of CNC Gear Shaper Based on the Kinematics of Multi-body System
     基于多体系统运动学的数控插齿机加工误差分析与实验研究
短句来源
     Study on Opened-die Forming for High Property Spur Gear
     高性能直齿圆柱齿轮开放成形研究
短句来源
     A Study on Dynamics of Helical Planetary Gear Train
     斜齿行星传动动力学研究
短句来源
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  齿轮的
     Predicting Bulk Temperatures in Gear Teeth by Finite Element Method
     用有限元法分析估算直齿轮的体积温度
短句来源
     Calculation of multiple composite gear transmission
     多公用齿轮的传动计算
短句来源
     A M-Z_1 NOMOGRAPH USED FOR DETERMINING STRAIGHT INVOLUTE GEAR MODULUS AND TEETH
     利用m—z_1线图确定渐开线直齿圆柱齿轮的模数和齿数
短句来源
     Calculation of Large Modified Involute Gear and Its Application to Design of Deck Machinery
     大变位齿轮的计算及其在甲板机械设计中的应用
短句来源
     The Programm and Analyse of the Computer Used for YM3150E Gear Hobber Processing Intermediate Wheel of High Prime Gear
     用电子计算机对YM3150E型滚齿机加工大质数齿轮的挂轮的计算与分析
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  齿轮传动
     The Optimum Design of a Double Composite Gear
     双公用齿轮传动的优化设计
短句来源
     Application of Computer to the Design of Spur Gear
     电子计算机在齿轮传动设计中的应用
短句来源
     Table of number of teeth for double composite gear transmission design
     双公用齿轮传动设计用齿数图表
短句来源
     A Deformation Analysis of Flat Flexible Gear and Its Equation of Original Curved Surface
     端面谐波齿轮传动柔轮的变形分析和原始曲面方程
短句来源
     STUDYING ON THE CALCULATION OF GEAR STRENGTH USING POCKET COMPUTER MODEL PC--1500
     在PC-1500袖珍计算机上进行齿轮传动强度设计的研究
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  gear
Results show that there can be four situations for meshing boundary line on the tooth surface of gear, namely, inexistence of meshing boundary line, a unique line, two lines, and two coincident lines.
      
Research on transmission principle and kinematics analysis for involute spherical gear
      
A new kind of transmission-type spherical gear called 'ring involute spherical gear mechanism' is introduced.
      
Compared to the famous TRALLFA spherical gear, this new spherical gear has an involute tooth profile, and a ring tooth that is distributed continuously on the surface of the sphere.
      
This allows the gear to overcome two disadvantages of the TRALLFA spherical gear: the drive principle error and the manufacturing difficulty.
      
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Here is discussed the application of differential gear mechanism for variable speed control, particularly for varying bobbin speed of flyer frames. For all three types as shown in Fig. 1, we get the same speed relationship as follows: n_z=bn_o+(1-b)n_y n_o-Constant speed of main shaft. n_y-Control speed from some speed-varying mechanism such as friction disk or belt cone. n_z-Output varying speed for some definite ends. b-Numerical constant dependent on gear ratios, given in Tab. 3 for all the three...

Here is discussed the application of differential gear mechanism for variable speed control, particularly for varying bobbin speed of flyer frames. For all three types as shown in Fig. 1, we get the same speed relationship as follows: n_z=bn_o+(1-b)n_y n_o-Constant speed of main shaft. n_y-Control speed from some speed-varying mechanism such as friction disk or belt cone. n_z-Output varying speed for some definite ends. b-Numerical constant dependent on gear ratios, given in Tab. 3 for all the three different types. Straight lines are plotted as in Fig. 2 to show the above relationship for different values of b. In Fig. 3 is given the relationship of turning moments and turning speeds at different values of b. In Fig. 4 is given the directional relationship of the mechanical power trans. mitred in the differential gear mechanism. The conclusion is: When the required speed variation is within narrow limits, the use of differential mechanism can reduce the mechanical power transmitted by the speed-varying mechanism, thus increasing its sensitivity and accuracy of control. See equation (12).

本文讨论粗纱机差动机构中周转轮系的应用——变速控制。对于图1中三种类型的周转轮系,可以得出统一的转速关系式: n_z=bn_o+(1-b)n_y 在图2中根据上式按下同的b值作出各直线以表示其间的关系。在图3中按不同的b值作出转矩和转速之间的关系图。在图4中表示出在各种情况下周转轮系和变速装置间的功率路线图。根据(12)式我们可以得出这祥的结论:当所要求的变速范围不大时,采用了周转轮系可以使通过交速装置的功率大为减小,因而增加变速控制的灵活性和准确性。

The present article deals chiefly with the skillful utilization of gear trains in ancient China. The authors analyze chiefly three examples, all of who will be reconstructed for exhibition by the Historical Museum of China. The first example is the water-powered astronomical apparatus equipped with clock-work indicating the day of the month, which was invented by Chang Heng (张衡) in the Han dynasty, about 130 A. D. The second example is the same kind of apparatus invented by I-Hsing (一行) and Liang Ling-tsan(梁令瓒)...

The present article deals chiefly with the skillful utilization of gear trains in ancient China. The authors analyze chiefly three examples, all of who will be reconstructed for exhibition by the Historical Museum of China. The first example is the water-powered astronomical apparatus equipped with clock-work indicating the day of the month, which was invented by Chang Heng (张衡) in the Han dynasty, about 130 A. D. The second example is the same kind of apparatus invented by I-Hsing (一行) and Liang Ling-tsan(梁令瓒) in the T'ang dynasty, in the year 725 A.D. And the third example is the south-pointing carriage invented by Wu Te-jen (吴德仁) in the Sung dynasty in the year 1107 A.D. From the above examples, we see that the ancient Chinese scientists already knew the following principles: 1. by using a kind of gear train mechanism that is, by the combination of a number of toothed wheels with different number of teeth, they could obtain a regular and uniform reduction of rotary motion; 2. by using gear trains they could transmit motion from one driver to two or more different followers with different speeds and directions; 3. by putting in or taking out an idler (or an intermediate wheel) between two toothed wheels, they could make the follower connect or disconnect with the driver; 4. by putting in one or several intermediate wheels between the driver and the follower, they could easily change the direction of rotation of the follower and reduce the total space needed by the whole train; 5. by putting in one intermediate wheel between two toothed,wheels having the same number of teeth, they could get them to rotate with the same speed and direction. From all this, we can clearly see that, almost all the important principles relating to gear trains were discovered by our,ancient scientists.

本文主要叙述中国古代对于齿轮系的巧妙应用。详细地分析了三个实例,并将由中国历史博 物馆古代技术工作室把它们都复原出来,在中国历史博物馆里陈列。第一个实例是汉代张衡在公 元130年(永建五年)左右发明的水力天文仪器;第二个实例是唐代一行和梁令瓒在公元725年 (开元十三年)发明的水力天文仪器;第三个实例是宋代吴德仁在公元1107年(大观元年)发 明的指南车。 根据这三个实例,可以知道中国古代的科学家们早已掌握了下列有关齿轮系的原理:1、由 不同齿数的若干个齿轮组成一个齿轮系可以得到很规律的减速运动;2、由一个原动轮的迴 转运动,可以传达到两个,三个,甚至更多的从动轮,得到彼此不同速度不同方向的运动;3、 由一个中轮的嵌入或离开,可以任意使从动轮与原动轮联系或不联系;4、由嵌入中轮的作用, 可以任意变更从动轮迴转的方向并可大大缩小全机构所占的空间;5、两个齿数相同的齿轮,中 间嵌入一个中轮,可以使它们按同一速度和同一方向迴转等。 根据上边所说的一切,我们可以很清楚地看出,所有一般有关齿轮系的主要原理都早已被我 国古代科学家们发现了。

Based upon experimental data of the SA 261 drawing frame the 3 over 4 curve-draft system high speed drawing frame is designed. Problems such as roller setting calculation, calculation of strength and rigidity of roller, etc., were dealt with in-detail. A new weighting mechanism is introduced. As a result of the inprovements made upon the draft-gearing, these gears provide less than 1% draft variation. Finally, the general construction of the high speed drawing frame is briefly discussed.

本文系介紹三上四下曲线牽伸高速并条机設計原理。文內引用了SA261型并条机的試驗数据,对三上四下曲线牽伸作了闡述,其后討論到具体設計上問題,罗拉隔距計算,罗拉强度及剛性計算方法,并列出了必要的公式。文內介绍到:牽伸变換灵敏度小于1%的牽伸傳动設計及結構簡單的新的加压机構設計等。最后对高速并条机結构設計加以簡略的討論。

 
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