휠 굴삭기용 변속기의 클러치 마찰특성 분석
Analysis of the Friction Characteristics of Transmission Clutch of a Wheel Excavator
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초록
Hydraulic transmission is the main component delivering power to the drive wheels of an excavator during forward and backward movement, and it has low speed, high torque and high speed, low torque gear change ratios as a forward/backward two-speed main function. It also has additional function of ensuring that the excavator is stably fixed on the ground with the built-in parking brake during excavation operations. In this study, optimal design specifications are determined by modeling and simulating about the multi-disc-type friction clutch, which is the main component improving the reliability of the hydraulic transmission for a 14-ton wheel excavator, and the friction properties of the transmission clutch are analyzed by performing sample tests.
Abstract
Hydraulic transmission is the main component delivering power to the drive wheels of an excavator during forward and backward movement, and it has low speed, high torque and high speed, low torque gear change ratios as a forward/backward two-speed main function. It also has additional function of ensuring that the excavator is stably fixed on the ground with the built-in parking brake during excavation operations. In this study, optimal design specifications are determined by modeling and simulating about the multi-disc-type friction clutch, which is the main component improving the reliability of the hydraulic transmission for a 14-ton wheel excavator, and the friction properties of the transmission clutch are analyzed by performing sample tests.
참고문헌 (6)
- M. S. Jeong, "Development of Real-time Dynamic Analysis Program for Wheel-type Excavator", Conference of The Korean Society for Automotive Engineers, pp.760~765 (1997)
- Y. S. Cho, "Estimation of Friction Characteristics of Wet-type Multiple Disc Brakes for Axle of 14 Ton Class Wheel Excavator", Journal of the Korean Society of Tribologist and Lubrication Engineers, 23(6), pp.312~317 (2007)
- J. P. Hong, "Fundamentals of Machine Component Design", pp.511~542 (2007), Books hill
- Y. B. Lee, "Test Analysis of Parking Brake for the Track Drive Unit of Excavator", Trans of The Korean Society Mechanical Engineers(B), pp, 1157(B), pp.1157~1162 (2011)
- Y. J. Park, "Modeling and Analysis of Hydraulic System for Construction Equipment A", T, 2009, 518~519
- 장주섭, "유압식 동력조향 장치 설계를 위한 해석 모델 개발", 한국자동차공학회 논문집, 16(1), pp.158~165 (2008), 한국자동차공학회