Basic theory and design method of variable shaft angle line gear mechanism

Chen, Yang-zhi (author), He, Chao (author), Lyu, Yue-ling (author)

In this paper, a novel line gear mechanism is proposed; it is called the variable shaft angle line gear mechanism (VSALGM). VSALGM has two rotational degrees of freedom, one is the rotation of the two gears with a constant transmission ratio, and the other is the relative swing of the two gears shafts. First, a novel contact model of VSALGM composed of one driven contact curve and one driving line teeth working surface (DLTWS) was proposed. With the concept, the basic design equations for VSALGM were derived on the basis of the space curve meshing theory of line gear. Moreover, the design criterion of pressure angle for VSALGM was analysed and proposed on the basis of the contact model. A basic design method for VSALGM was thus developed. A design example was given, and prototypes were manufactured using three-dimensional (3D) printing. Kinematic experiments and gear contact spot testing were carried out on a self-made kinematic test rig by the prototypes. The results show that the VSALGM designed in this paper can achieve a continuous, smooth and stable meshing transmission while the shaft angle is continuously changed within its setting range.

• Language: English
• Keywords: line gear, variable shaft angle, degree of freedom, pressure angle, space curve meshing theory
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2021
• Number of pages: Str. 352-362
• Numbering: Vol. 67, no. 7/8
• PID: 20.500.12556/RUL-130970
• UDC: 621.8(045)
• ISSN on article: 0039-2480
• DOI: 10.5545/sv-jme.2021.7216
• COBISS.SI-ID: 76894723
• Publication date in RUL: 20.09.2021

Record is a part of a journal

• Title: Strojniški vestnik
• Shortened title: Stroj. vestn.
• Publisher: Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
• ISSN: 0039-2480
• COBISS.SI-ID: 762116

Secondary language

• Language: Slovenian
• Title: Osnovna teorija in metoda za konstruiranje linijskih zobniških mehanizmov z variabilnim kotom gredi
• Keywords: linijski zobniki, variabilen kot gredi, prostostna stopnja, ubirni kot, teorija prostorske ubirnice, kinematični eksperiment, zobniški prenos