Temperature Field Simulation and Experimental Study of Anti-backlash Single-Roller Enveloping Hourglass Worm Gear
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Chinese Journal of Mechanical Engineering Open Access
ORIGINAL ARTICLE
Temperature Field Simulation and Experimental Study of Anti‑backlash Single‑Roller Enveloping Hourglass Worm Gear Shisong Wang1 , Shike Wang1, Jie Wang1 and Xingqiao Deng2*
Abstract In gear transmission, temperature rise has a non-negligible impact on the accuracy, noise and transmission efficiency. However, there is no relevant research on the temperature rise of the anti-backlash single-roller enveloping hourglass worm (ASEHW) gear. To solve this problem, based on tribology principle and Hertz contact theory, the thermal power calculation method of the ASEHW gear was proposed for the first time and thermal analysis was carried out by Ansys software. The bulk temperature of the ASEHW gear under four different rotating speed (300 r/min, 600 r/min, 900 r/ min, 1200 r/min) is calculated. The main factors causing temperature rise of the ASEHW gear are analyzed theoretically. Meanwhile, an experimental study is performed to verify the simulation results and validate the theory methods. The theory presented in this paper provides a solution for the thermal power calculation of ASEHW gear. This research provides a theoretical basis for further optimization of ASEHW gear. Keywords: Roller enveloping hourglass worm gear, Finite element analysis, Temperature field 1 Introduction During the transmission of the gear, due to the relative sliding of the meshing tooth surface, an instantaneous high temperature is generated. The high temperature of this moment is called the flash temperature [1–4]. Since the teeth are constantly engaged at the meshing area, the overall temperature of the gear is increased. The overall temperature of the gear is called the bulk temperature [5–7]. The flash temperatures can cause teeth bonding, resulting in dynamic loads, noise, and increased tooth wear [8]. If the bulk temperature is too high, the thermal expansion of the gear will cause the meshing gap between the gears to become smaller, which will lead to increased power loss [9]. Since the gear temperature rise has a huge impact on the life of the reducer, the temperature rise in
*Correspondence: [email protected] 2 College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu 610059, China Full list of author information is available at the end of the article
the gear transmission process has always been a hot and difficult point for experts at home and abroad. Generally, the research methods of gear temperature rise include experimental method, simulation analysis method, experimental method and simulation analysis. Using experimental method, Mao et al. [10, 11] tested the relationship between temperature and tooth wear of a kind of polymer composite gear. Yi et al. [12] use of thermocouples to check the gear surface temperature. The above experimental method can effectively measure the gear surface temperature, but the experimental method has strict requirements on the conditions, the gear surface temperature can onl
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