RESEARCH ON COMB BRUSH HARVESTER AND DAMAGE MECHANISM TO MATERIAL: A REVIEW
DOI : https://doi.org/10.35633/inmateh-69-07
Mechanized harvesting of crops is an important link in the field of agricultural engineering, and brush harvesting is a common way of harvesting. The comb brush device is divided into four types: comb tooth type, roller spring finger type, belt comb finger type, and rod comb finger type. Picking rate and breakage rate are the indexes to evaluate the advantages and disadvantages of comb brush harvesting devices. How to improve the picking rate and reduce breakage rate is of great significance to the popularization of the devices. To improve the picking rate, the design of comb teeth should conform to the growth characteristics of crops. In this study, the application of four comb brush devices in harvesting different crops was introduced, working principles and advantages and disadvantages were summarized. Meanwhile, the research status of a variable finger spacing device was summarized. In addition, to study fruit damage caused by brush devices during harvesting, three common analysis methods were summarized, namely finite element method, discrete element method, and text analysis method. The application situations and key steps were listed, and the modeling methods of material fruit in simulation analysis were summarized. The review is intended to provide a reference for improving the harvesting effect of comb brush device. In the future, with the deepening combination of agronomy and agricultural machinery technology, comb brush harvesters will be more widely used.
Abstract in Chinese