Korean Journal of Agricultural Science (농업과학연구)

Institute of Agricultural Science, CNU (충남대학교 농업과학연구소)
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Strength analysis of the driving shift gears for a 67 kW class agricultural tractor according to tire type

  • Baek, Seung Min (Department of Smart Agriculture Systems, Chungnam National University) ;
  • Kim, Wan Soo (Department of Biosystems Machinery Engineering, Chungnam National University) ;
  • Kim, Yeon Soo (Department of Biosystems Machinery Engineering, Chungnam National University) ;
  • Baek, Seung Yun (Department of Smart Agriculture Systems, Chungnam National University) ;
  • Lee, Nam Gyu (Department of Biosystems Machinery Engineering, Chungnam National University) ;
  • Moon, Seok Pyo (Department of Biosystems Machinery Engineering, Chungnam National University) ;
  • Jeon, Hyeon Ho (Department of Smart Agriculture Systems, Chungnam National University) ;
  • Choi, Young Soo (Department of Rural and Biosystems Engineering, Chonnam National University) ;
  • Kim, Taek Jin (Research and Development Institute, Tongyang Moolsan Co., Ltd.) ;
  • Kim, Yong Joo (Department of Smart Agriculture Systems, Chungnam National University)
  • Received : 2020.10.20
  • Accepted : 2020.11.30
  • Published : 2020.12.01
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Abstract

The purpose of this study was to measure the engine torque and rotational speed of a 67 kW class agricultural tractor according to tire type during plow tillage and to analyze the gear strength of the driving shift for the tractor. A field test was performed under the condition with a single tire (Test A) and dual tires (Test B) to increase the ground width of the rear tires. A load monitoring system was developed, and the engine torque and rotational speed were measured using controller area network (CAN) communication. The engine torque and rotational speed during plow tillage were calculated as the equivalent torque and speed using Palmgren Miner's rule. As a result, the equivalent torque and speed in Test A and Test B were 181.0 Nm and 1,913 rpm and 206.1 Nm and 2,130 rpm, respectively. As the ground width of the rear tire was increased, the bending stress in Test B was about 9.9 to 10.5% higher than that of the Test A, and the contact stress was about 4.6 to 4.9% higher than that of the Test A. Under all conditions, the safety factor for the bending and contact stress was 1 or more. Thus, the driving shift gears for the dual tire type are considered safe.

Keywords

Acknowledgement

본 성과물은 교육부와 한국연구재단의 지원을 받아 수행된 사회맞춤형 산학협력 선도대학(LINC+)육성사업의 연구결과임(과제번호 2020BG015010113).

References

  1. Baek SM, Kim WS, Kim YS, Lee NG, Kim NH, Kim YJ. 2020. Analysis of the load distribution and contact safety factor of PTO gears of a 71 kW class agricultural tractor. Korean Journal of Agricultural Science 47:327-335. [in Korean] https://doi.org/10.7744/KJOAS.20200023
  2. Baek SM, Kim WS, Park SU, Kim YJ. 2019. Analysis of equivalent torque of 78 kW agricultural tractor during rotary tillage. Journal of Korea Institute of Information, Electronics, and Communication Technology 12:359-365. [in Korean] https://doi.org/10.17661/JKIIECT.2019.12.4.359
  3. Bae MH, Bae TY, Choi SK. 2016. The strength analysis of gears on hydro-mechanical continuously variable transmission for forklift. Journal of Drive and Control 13:45-51. [in Korean] https://doi.org/10.7839/ksfc.2016.13.4.045
  4. Damanauskas V, Janulevicius A. 2015. Differences in tractor performance parameters between single-wheel 4WD and dual-wheel 2WD driving systems. Journal of Terramechanics 60:63-73. https://doi.org/10.1016/j.jterra.2015.06.001
  5. Islam MN, Iqbal MZ, Kabir MSN, Jung KY, Mun DH, Chung SO. 2019. Performance evaluation of trenchless subsurface drainage piping machine. Journal of Biosystems Engineering 44:218-225. https://doi.org/10.1007/s42853-019-00032-y
  6. Jang JH. 2018. Durability analysis of compound planetary gear of hydro mechanical transmission. Master dissertation, Chungnam Univ., Daejeon, Korea. [in Korean]
  7. Kang NR, Choi IS, Lee WJ, Woo JK, Kim YK, Choi Y, Yoo SN. 2019. Sideways overturning and overturning angle test for a three-wheel riding-type cultivator. Journal of Biosystems Engineering 23:12-17.
  8. Kim TJ, Kim WS, Kim YS, Chung SO, Park SU, Hong SJ, Choi CH, Kim YJ. 2019a. Strength analysis of mechanical transmission using equivalent torque of plow tillage of an 82 kW-class tractor. Korean Journal of Agricultural Science 46:723-735. [in Korean]
  9. Kim WS, Kim YJ, Park SU, Hong SJ, Kim YS. 2019c. Evaluation of PTO Severeness for 78 kW-class tractor according to disk plow tillage and rotary tillage. Journal of Drive and Control 16:23-31. [in Korean]
  10. Kim WS, Kim YS, Kim TJ, Park SU, Choi Y, Choi IS, Kim YK, Kim YJ. 2019b. Analysis of power requirement of 78 kW class agricultural tractor according to the major field operation. Transactions of the Korean Society of Mechanical Engineers-A 43:911-922. [in Korean] https://doi.org/10.3795/KSME-A.2019.43.12.911
  11. Lee NG, Kim YJ, Kim WS, Kim YS, Kim TJ, Baek SM, Choi Y, Kim YK, Choi IS. 2020a. A study on the improvement of transmission error and tooth load distribution using micro-geometry of compound planetary gear reducer for tractor final driving shaft. Journal of Drive and Control 17:1-12. [in Korean]
  12. Lee YS, Ali M, Islam MN, Rasool K, Jang BE, Kabir MSN, Chung SO. 2020b. Theoretical analysis of bending stresses to design a sprocket for transportation part of a Chinese cabbage collector. Journal of Biosystems Engineering 45:85-93. https://doi.org/10.1007/s42853-020-00047-w
  13. Lim SJ, Kwon HJ, Kang YS, Lee PU, Kim TJ, Kim YJ, Kim YS. 2019. Power analysis of a 3-kW class motor-driven multipurpose walking-type transplanter. Journal of Biosystems Engineering 44:135-145. https://doi.org/10.1007/s42853-019-00016-y
  14. Oh YY, Kim YJ, Lee SH, Ryu JH, Kim S, Lee JT, Jun JB, Kim KY. 2018. Effects of paddy-upland rotation on soil characteristics and crop productivity in rice fields on reclaimed tidal land. Journal of Environmental Science International 27:641-650. [in Korean] https://doi.org/10.5322/JESI.2018.27.8.641
  15. Okyere FG, Qasim W, Basak JK, Khan F, Lee YJ, Park JH, Arulmozhi E, Yoon YC, Kang DS, Kim HT. 2019. Analysis of draft force requirement of a compact disc harrow and model development for future predictions. Journal of Biosystems Engineering 44:47-56. https://doi.org/10.1007/s42853-019-00003-3
  16. Park SU. 2019. Fatigue life evaluation of spiral bevel gear of transmission using agricultural workload of tractor. Ph.D. dissertation, Chungnam Univ., Daejeon, Korea. [in Korean]
  17. Park WY, Lee KS. 2001. A study on soil stress and contact pressure of tire. Journal of the Korean Society for Agricultural Machinery 26:245-252. [in Korean]
  18. Park WY, Lee KS. 2002a. The effect of dynamic load, inflation pressure and number of passes of tire on soil compaction under the tire. Journal of the Korean Society for Agricultural Machinery 27:1-10. [in Korean]
  19. Park WY, Lee KS. 2002b. The effect of tire inflation pressure on soil compaction and tractive performance of tractor. Journal of the Korean Society for Agricultural Machinery 27:491-500. [in Korean]
  20. Servadio P, Marsili A, Vignozzi N, Pellegrini S, Pagliai M. 2005. Effects on some soil qualities in central Italy following the passage of four wheel drive tractor fitted with single and dual tires. Soil and Tillage Research 84:87-100. https://doi.org/10.1016/j.still.2004.09.018
  21. Wang Z, Domier KW. 1989. Prediction of drawbar performance for a tractor with dual tires. Transactions of the ASAE 32:1529-1533. https://doi.org/10.13031/2013.31184