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Studie zur Leistung und Dauerfestigkeit eines Nebenantriebsgetriebes mit Einzeleingang und Mehrfachausgang
Author(s) -
Lee Y.B.,
Lee G.C.,
Park J.W.,
Sung B.J.,
Yang J.D.
Publication year - 2020
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.202000097
Subject(s) - excavator , torque , automotive engineering , dynamometer , engineering , power (physics) , hydraulic fluid , hydraulic pump , rotational speed , engine power , hydraulic machinery , acceleration , durability , mechanical engineering , computer science , physics , classical mechanics , quantum mechanics , database , thermodynamics
The power take‐off (PTO) gearbox is widely used for special vehicles, large construction machinery, industrial machinery and ships, to distribute the power of a single input shaft from an engine or a motor to several shafts or to collect several shafts by single shaft power (Torque × rotation speed). The super large hydraulic excavator is equipped with a power take‐off (PTO) gearbox between the main engine and a number of pumps for the purpose of improving the fuel efficiency and improving the system efficiency. The power take‐off (PTO) gearbox of a large hydraulic excavator with a body weight of 100 ton ( = 10 5 kg) is connected with two large hydraulic pumps and one small hydraulic pump on three output shafts and different axial loads are generated depending on the working characteristics of the excavator. In this paper, we evaluated the performance and durability of a power take‐off (PTO) gearbox of a large hydraulic excavator with a 100‐ton body weight. The test evaluation criteria for non‐fault life time calculation, performance and accelerated life test were established, and the types and characteristics of acceleration test equipment were analyzed. The torque distribution with the use of the gear phase difference to maintain the gearbox output condition was investigated, and energy was saved by circulating experimental power while controlling speed and load with two electric dynamometers. We analyzed the life of the gearbox by analyzing the metal particles generated in the lubricating oil of the gearbox.