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Transmission Characteristics and Experiment of Hydraulic–Mechanical Transmission of Cotton Picker

Author

Listed:
  • Huajun Chen

    (College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China
    These authors contributed equally to this work.)

  • Meng Wang

    (College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China
    Key Laboratory of Modern Agricultural Machinery, Xinjiang Production and Construction Corps, Shihezi 832003, China
    These authors contributed equally to this work.)

  • Xiangdong Ni

    (College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China)

  • Xiangchao Meng

    (College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China)

  • Wenqing Cai

    (College of Information Science and Technology, Shihezi University, Shihezi 832003, China)

  • Yiqing Li

    (College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China)

  • Baoyu Zhai

    (College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China)

  • Hongbin He

    (College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China)

  • Yuyang Wang

    (School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, China)

Abstract

To overcome the issue of unstable speed output encountered by cotton pickers operating in harsh environments and subject to frequent external load fluctuations, a hydraulic–mechanical transmission (HMT) for cotton pickers is proposed in this study. By analyzing the driving system of the cotton picker, a Lavira-based HMT scheme is developed. The matching characteristics of the HMT speed ratio are analyzed, a continuity and smoothness test of the speed ratio of the changing segment is carried out, and the influence law of smoothness of the HMT changing segment is discussed. The results show that the HMT system effectively satisfies the driving speed requirements for both field harvesting and road transportation of cotton pickers. The HMT speed ratio is continuously controllable and the design is reasonable. The HMT load torque and the oil pressure in the main oil circuit have a significant impact on the smoothness indicators of speed reduction and dynamic load. Additionally, the flow rate of the governor valve has a notable effect on the smoothness indicator of sliding friction power. However, the engine’s output speed has no significant influence on the HMT’s smoothness. This research can provide theoretical support for the development and design of cotton picker gearboxes and the transmission characteristics and experimental research of off-road vehicle gearboxes.

Suggested Citation

  • Huajun Chen & Meng Wang & Xiangdong Ni & Xiangchao Meng & Wenqing Cai & Yiqing Li & Baoyu Zhai & Hongbin He & Yuyang Wang, 2024. "Transmission Characteristics and Experiment of Hydraulic–Mechanical Transmission of Cotton Picker," Agriculture, MDPI, vol. 14(8), pages 1-19, July.
    • Handle: RePEc:gam:jagris:v:14:y:2024:i:8:p:1250-:d:1445193
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    References listed on IDEAS

    as
    1. Hyoung-Jong Ahn & Young-Jun Park & Su-Chul Kim & Chanho Choi, 2023. "Theoretical Calculations and Experimental Studies of Power Loss in Dual-Clutch Transmission of Agricultural Tractors," Agriculture, MDPI, vol. 13(6), pages 1-16, June.
    Full references (including those not matched with items on IDEAS)

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