Force Model for Crank Group Mechanism and Analysis of Crank Arrangement
Crank group mechanism is a planar bar mechanism with over constraint. According to the characteristics of the mechanism， the static equilibrium equations of each motion component in crank group mechanism are established. And dynamic static force analysis model of crank group mechanism containing any...
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| Main Authors: | , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Transmission
2019-05-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2019.05.005 |
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| Summary: | Crank group mechanism is a planar bar mechanism with over constraint. According to the characteristics of the mechanism， the static equilibrium equations of each motion component in crank group mechanism are established. And dynamic static force analysis model of crank group mechanism containing any crank is established based on deformation coordination equation from the axial deformation of the crank. A numerical example is given to illustrate the effectiveness and convenience of the method. Influence of different arrangement of crank on the force of crank group is analyzed， taking crank group mechanism with 3 cranks as an example. The results show that the maximum force peak of crank group mechanism can be greatly reduced by the symmetrical arrangement of 2 driven crank on active crank for the crank group mechanism with 3 cranks. The analysis provide a theoretical basis for the structural design and size selection of crank group mechanism， and lay the foundation for further study of factors affecting force. |
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| ISSN: | 1004-2539 |