非正交弧线齿面齿轮齿面设计及根切研究
Abstract: Non-orthogonal gear tooth surface design and root cutting rearch is a hot point in gear design and manufacture. Firstly, this paper introduces the concept of non-orthogonal gear tooth surface design and its application, then it expounds the characteristic and principle of non-orthogonal involute helical gear tooth profile design. At the same time, it expounds the method of designing a non-orthogonal gear tooth root cutting. Finally, a ca study is carried out to demonstrate the application and effectiveness of non-orthogonal gear tooth surface design and root cutting design.抄底逃顶
Key words: Non-orthogonal gear; involute helical gear; tooth profile design; root cutting design
1 Introduction
欧洲历史 Gear manufacturing is the field of technology and engineering dealing with the design, manufacture, installation and maintenance of gears. Recently, non-orthogonal gear is widel其他英语
y ud in various machinery, such as ship drive system, industrial robot and so on. Non-orthogonal gear has the features of small bulk, high transmission accuracy, large transmission ratio and strong carrying capacity. Therefore, non-orthogonal gear is widely ud in various machinery, such as ship drive system, industrial robot and so on.
Non-orthogonal gear tooth surface design is a key point in the design and manufacture of non-orthogonal gear. It includes basic parameters, tooth profile design and root cutting design. The non-orthogonal gear tooth surface design must consider the meshing requirement between the teeth of the gear pair and the transmission accuracy requirements of the gear pair. In order to improve the performance of non-orthogonal gear, it is necessary to design the tooth surface to meet the requirements.
2 Non-orthogonal gear tooth surface design
2.1 Basic parameters
保护鸟类的宣传语 The basic parameters of non-orthogonal gear tooth surface design include the number
缝美家美缝剂
of teeth, the module, the helix angle, the pressure angle and the gear center distance. The number of teeth is the total number of teeth of the gear. The module is the distance between two adjacent teeth, and the unit is mm. The helix angle is the angle between the helix of the gear and the axial direction. The pressure angle is the angle between the line of action and the normal line of the gear. The gear center distance is the distance between the two centers of the gears after meshing.
2.2 Tooth profile design
The tooth profile of non-orthogonal gear is generally designed by involute helix parameters. The involute helical tooth profile of non-orthogonal gear is a curve generated when the generating circle is presd along a non-orthogonal helix. The involute helical tooth profile of non-orthogonal gear consists of a pitch circle and an involute line. The basic parameters of the pitch circle include the pitch circle diameter D, the helix angle γ, the pressure angle α and the number of teeth. The involute line is compod of the addendum circle, the inner side circle and the dedendum circle. The basic parameters of
the involute line include the addendum circle diameter d, the inner side circle diameter d1, the dedendum circle diameter d2 and the tooth length lt.少阴石
2.3 Root cutting design
The root cutting of the non-orthogonal gear is generally designed by the helix angle, the pressure angle and the gear center distance. The root cutting of the non-orthogonal gear includes the top height ht, the bottom height hb and the root cutting depth h. The top height is the distance from the top of the tooth to the top surface of the gear. The bottom height is the distance from the bottom of the tooth to the bottom surface of the gear. The root cutting depth is the distance from the root cutting surface of the tooth to the root surface of the gear.
医保卡怎么使用 3 Ca study
In order to verify the effectiveness of the non-orthogonal gear tooth surface design and root cutting design, the following ca study is given. The parameters of the non-orthogo
nal gear are given as follows: the number of teeth n=16, the module m=4mm, the helix angle γ=20°, the pressure angle α=20°. The gear center distance is a=16mm.
According to the given design parameters, the involute helical gear tooth profile is designed. The basic parameters are as follows: the pitch circle diameter D=64mm, the addendum circle diameter d=4mm, the inner side circle diameter d1=58mm, the dedendum circle diameter d2=68mm, the tooth length lt=14mm. Then, the root cutting is designed. The root cutting parameters are as follows: the top height ht=2mm, the bottom height hb=4mm, the root cutting depth h=2mm.
4 Conclusion
In this paper, non-orthogonal gear tooth surface design and its root cutting design are studied. In order to improve the performance of non-orthogonal gear, it is necessary to design the non-orthogonal gear tooth surface. First, the basic parameters of the non-orthogonal gear are given. Then, the involute helical gear tooth profile is designed according to the given parameters. Finally, the root cutting of the non-orthogonal gear is d
esigned. A ca study is given to verify the effectiveness of the design propod in this paper. The results show that the non-orthogonal gear tooth surface design and root cutting design propod in this paper can meet the design requirements of the non-orthogonal gear.。
康熙的女儿
