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Research and Test of Three-Pulley Noncircular Synchronous Pulley Transmission Mechanism with Minimum Slack
- Source :
- Chinese Journal of Mechanical Engineering, Vol 34, Iss 1, Pp 1-13 (2021)
- Publication Year :
- 2021
- Publisher :
- SpringerOpen, 2021.
-
Abstract
- The noncircular synchronous belt drive mechanism has demonstrated certain achievements and has been used in special fields. Research regarding noncircular synchronous belt drive mechanisms has focused on optimization design and kinematic analysis in China, whereas two pulley noncircular synchronous belt transmissions have been developed overseas. However, owing to the noncircular characteristics of the belt pulley, the real-time variation in the belt length slack during the transmission of the noncircular synchronous belt is significant, resulting in high probabilities of skipping and vibration. In this study, a noncircular tensioning pulley is added to create a stable three-pulley noncircular synchronous belt driving mechanism and a good synchronous belt tensioning, with no skipping; hence, the non-uniform output characteristic of the driven pulley is consistent with the theoretical value. In the circular noncircular noncircular three-pulley noncircular synchronous belt mechanism, the pitch curve of the driving synchronous belt pulley is circular, whereas those of the driven synchronous belt and tensioning pulleys are noncircular. To minimize the slack of the belt length of the synchronous belt and the constraint of the concavity and circumference of the tensioning pulley, an automatic optimization model of the tensioning pulley pitch curve is established. The motion simulation, analysis, and optimization code for a three-belt-pulley noncircular synchronous belt drive mechanism is written, and the variation in belt length slack under different speed ratios is analyzed based on several examples. The testbed for a circular–noncircular–noncircular three-pulley noncircular synchronous belt transmission mechanism is developed. The test shows that the three-pulley noncircular synchronous belt drives well. This study proposes an automatic optimization algorithm for the tensioning pulley pitch curve of a noncircular synchronous belt transmission mechanism; it yields a stable transmission of the noncircular synchronous belt transmission mechanism as well as non-uniform output characteristics.
- Subjects :
- Non-uniform speed transmission characteristics
0209 industrial biotechnology
business.product_category
Computer science
lcsh:Mechanical engineering and machinery
lcsh:Ocean engineering
0211 other engineering and technologies
02 engineering and technology
Kinematics
Belt drive
Industrial and Manufacturing Engineering
Pulley
020901 industrial engineering & automation
Control theory
lcsh:TC1501-1800
Slack calculation model
lcsh:TJ1-1570
021106 design practice & management
Optimization algorithm
Motion simulation
Mechanical Engineering
Noncircular synchronous belt drive
Vibration
Mechanism (engineering)
Transmission (telecommunications)
business
Subjects
Details
- Language :
- English
- ISSN :
- 21928258 and 10009345
- Volume :
- 34
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Chinese Journal of Mechanical Engineering
- Accession number :
- edsair.doi.dedup.....7c006ffa7a1a5d301321311a4a2dcaf4