To investigate the mechanical characteristics of Caragana korshinskii stem sawing and determine the optimal sawing parameters for supporting the subsequent optimization and improvement of shearing equipment, a self-designed branch sawing test platform was used in this study. Single-factor experiments were conducted to examine the effects of stem diameter, cutting speed, feeding speed, cutting angle, and saw blade tooth count on the peak cutting force and cutting power of the branches. Building upon the results of the single-factor experiments, a Box-Behnken central composite experimental design was employed. Selecting cutting speed, feeding speed, cutting angle, and saw blade tooth count as experimental factors, a multi factor experiment was carried out with peak cutting force and cutting power of branches as target values, and a regression model was established. The experimental results showed that the peak cutting force increased with the increase of stem diameter, while it exhibited an initial increase followed by a decrease with the increase of cutting speed, feeding speed, cutting angle, and saw blade tooth count. Similarly, the cutting power increased with the increase of stem diameter, but initially decreased and then increased with the increase of cutting speed, feeding speed, cutting angle, and saw blade tooth count. Multi-objective optimization analysis of the regression model yielded the optimal combination of parameters: cutting speed of 45.7 m/s, feeding speed of 0.32 m/s, cutting angle of 8.3°, and tooth count of 104. Under these conditions, the peak cutting force was 7.02 N and the cutting power was 181.57 W. The deviation between the predicted value and the actual value of the peak cutting force and cutting power was 1.9% and 2.2%, respectively. The results of this experiment provide valuable reference for the design of efficient and low-energy consumption Caragana korshinskii shearing equipment.
CHEC, ZHANGM, YANGW,et al.Dissimilarity in radial growth and response to drought of Korshinsk peashrub (Caragana korshinskii Kom.) under different management practices in the western Loess Plateau[J].Frontiers in Plant Science,2024,15:11.
[2]
SHENJ, WANGX, WANGL,et al.Spatiotemporal characteristics of seed rain and soil seed bank of artificial Caragana korshinskii Kom.forest in the Tengger Desert,China[J].Journal of Arid Land,2024,16(4):550-566.
[3]
LIW, ZHANGS, ZHANGT,et al.Bacterial cellulose production from ethylenediamine pretreated Caragana korshinskii Kom[J].Industrial Crops and Products,2021,164:113340.
[4]
徐海洋,王靖.柠条平茬收获机械现状及发展趋势[J].农机科技推广,2024(2):28-30.
[5]
XUH Y, WANGJ.The current status and development trends of mechanized harvesting of Caragana species[J].Agriculture Machinery Technology Extension,2024(2):28-30.
WUK, SONGY P.Research progress analysis of crop stalk cutting theory and method[J].Transactions of the Chinese Society for Agricultural Machinery,2022,53(6):1-20.
KANGF, TONGS Y, ZHANGH S,et al.Analysis and experiments of reciprocating cutting parameters for apple tree branches[J].Transactions of the Chinese Society of Agricultural Engineering,2020,36(16):9-16.
LIUJ Q, ZHANGT Y, JINP,et al.Optimization of sawtooth structure parameters for electric chain saws based on Design-Expert[J].Forest Engineering,2024,40(2):142-150.
SHUY, GENGX Y, SONGY P,et al.Design of saw-cutting apple pruning machine with clamping,mechanism[J].Journal of Chinese Agricultural Mechanization,2018,39(8):9-16.
HOUJ L, JIANGT, WUY Q,et al.Design and experiment of wheat straw cutting reciprocating test bench[J].Transactions of the Chinese Society for Agricultural Machinery,2014,45(S1):101-106.
ZHOUR, SHENR F, CHENX,et al.Design and simulation of the hydraulic walking system of the harvester based on AMESim[J].Forest Engineering,2022,38(2):87-94.
BOS W, LIY X, WANGH B.Design and experiment of shrub cutting experimental device with circular saws[J].Journal of Agricultural Mechanization Research,2023,45(5):165-172.
[24]
FEKIAČJ, SVORENJ, GÁBORÍKJ,et al.Reducing the energy consumption of circular saws in the cutting process of plywood[J].Coatings,2022,12(1):55.
[25]
KRILEKJ, ŤAVODOVÁM, KOVÁČJ,et al.Impact of irregular tooth pitch of circular saw blades on power for wood cross-cutting[J].Drvna Industrija,2020,71(1):3-11.
[26]
TURCHETTAS, SORRENTINOL.Forces and wear in high-speed machining of granite by circular sawing[J].Diamond and Related Materials,2019,100:8.
[27]
LIW, ZHANGZ, PENGX,et al.The influences of circular saws with sawteeth of mic-zero-degree radial clearance angles on surface roughness in wood rip sawing[J].Annals of Forest Science,2017,74(2):9.
[28]
XIEL, WANGJ, CHENGS,et al.Optimisation and dynamic simulation of a conveying and top breaking system for whole-stalk sugarcane harvesters[J].Biosystems Engineering,2020,197:156-169.
[29]
VUV D, NGOQ H, NGUYENT T,et al.Multi-objective optimisation of cutting force and cutting power in chopping agricultural residues[J].Biosystems Engineering,2020,191:107-115.
[30]
YUM, WANGB, JIP,et al.Study on the dynamic stability of circular saw blade during medium density fiberboard sawing process with thermo-mechanical coupling[J].Computers and Electronics in Agriculture,2023,211:11.
[31]
NDUMIAJ N, KANGM, BELLOZ A,et al.Microstructure and wear mechanism of FeCrMoCBWNb coating deposited by arc-spraying and its application on 65Mn steel blades[J].Surface and Coatings Technology,2024,492:16.
YANGL, ZHANGY, HEZ Y,et al.Design and experiment of the rotating shear picking device for green Sichuan peppers[J].Transactions of the Chinese Society of Agricultural Engineering,2024,40(3):72-83.
ZHANGL, TONGS Q, KANGF,et al.Analysis and experiments of cutting blade parameters for grape branches[J].Forest Engineering,2022,38(2):95-104.
[36]
GAOY, WANGY, KANGF,et al.Multi-objective optimization of cross-section integrity rate and sawing power consumption in sawing Caragana korshinskii Kom.branches[J].Industrial Crops and Products,2023,193:14.
LIUJ M, ZHAOJ, ZHANGJ Z,et al.Cutting constitutive equation and its parameter measurement of oil tree peony stem[J].Journal of Beijing Forestry University,2020,42(11):138-144.