Study on kinematic characteristics of planetary multistage face gears transmission

Hu, Qingchun; Chen, Xingbin; Xu, Zhongyang; Mai, Qianli; Zhu, Chune

doi:10.1177/0954407019855908

Cited by 8 publications

(2 citation statements)

References 28 publications

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“…e multistage face gear pair consists of a series of singlestage face gears meshing with cylindrical gears. A face gear double crown constructed from a straight tooth surface was previously proposed to prevent interference by unsynchronized motion between various face gears within the same cylindrical gear, improve contact characteristics, and achieve stable transmission, which was verified by experiment [19,20].…”

Section: Structural Model and Contact Relationship Of Multistage Crowmentioning

confidence: 92%

Study on Impact Characteristics of Multistage Double Crown Face Gear Pairs considering Ratio Switching under Variable Conditions

Chen

Min

Zhang

et al. 2020

Shock and Vibration

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This paper presents a new transmission mechanism with multistage face gears as the core components for realizing variable speeds with differential meshing. To improve face gear transmission smoothness, suppress meshing resonance, reduce noise, and optimize power transmission performance during the gear shifting process, load distribution between meshing teeth during the transmission process and impact loads during various shifting stages must be determined. Herein, we present a gear impact model considering double crown gear meshing configuration, contact deformation, variable working conditions, and jump impact at meshing points. A single-stage face gear pair is considered as object that the impact characteristics are comparatively studied under four conditions: with/without load and constant/variable speed. The results were used to analyze transient characteristics of the crown gear under contact deformation or frequent shifting impact. Based on this, the impact characteristics of multistage face gear pairs between ratio switching were extendedly investigated under four input conditions: constant/variable torque or constant/variable speed. The results were used to determine the meshing force and impact force fluctuation characteristics of multistage face gear pairs while adapting to various loads and continuous acceleration/deceleration. The proposed model can be beneficial to evaluate the feasibility of multistage gear structures with crown configuration and to obtain boundary conditions for transmission systems.

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Section: Structural Model and Contact Relationship Of Multistage Crowmentioning

confidence: 92%

Study on Impact Characteristics of Multistage Double Crown Face Gear Pairs considering Ratio Switching under Variable Conditions

Chen

Min

Zhang

et al. 2020

Shock and Vibration

Self Cite

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“…In recent years, the demands of mechanical transmission systems have increased to meet the higher performance requirements (e.g., thrust-to-weight ratio, reliability, and service life) in modern aerospace, ship, and automobile industry sectors. The surface quality of gears, as the key components of the above mentioned transmission systems, plays a crucial in uence on the service performance of whole systems [1][2][3][4]. At present, the grinding process is usually applied as the nal procedure to raise the dimension accuracy and surface integrity of gears [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

On the grinding performance of alumina wheels in ultrasonic vibration–assisted grinding of hardened GCr15 steel

Qiu

Zhao

Cao

et al. 2022

Int J Adv Manuf Technol

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Composite manufacturing with multiple energy elds is an important source of processing technology innovation. In this work, comparative experiments on the conventional grinding (CG) and ultrasonic vibration-assisted grinding (UVAG) of hardened GCr15 steel were conducted with WA wheel. The grinding wheel wear patterns and chips were characterized. In addition, grinding force, force ratio, and ground surface quality were investigated to evaluate wheel performance. Results illustrate that the interaction between abrasive grains and workpiece in UVAG process has the characteristics of high frequency and discontinuity. The wear property of abrasive grains is changed and the grinding force is decreased because the generation of micro-fracture in abrasive grains improves the grinding wheel self-sharpening.Better surface quality is obtained, the surface roughness is reduced by up to 18.96%, and the number of defects on the machined surface is reduced through the superior reciprocating ironing of UVAG.Accordingly, WA wheel performance is improved by UVAG.

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Dynamic characteristics and load-sharing performance of concentric face gear split-torque transmission systems with time-varying mesh stiffness, flexible supports and deformable shafts

et al. 2021

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Study on kinematic characteristics of planetary multistage face gears transmission

Cited by 8 publications

References 28 publications

Study on Impact Characteristics of Multistage Double Crown Face Gear Pairs considering Ratio Switching under Variable Conditions

Study on Impact Characteristics of Multistage Double Crown Face Gear Pairs considering Ratio Switching under Variable Conditions

On the grinding performance of alumina wheels in ultrasonic vibration–assisted grinding of hardened GCr15 steel

Dynamic characteristics and load-sharing performance of concentric face gear split-torque transmission systems with time-varying mesh stiffness, flexible supports and deformable shafts

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