Generation and Meshing Analysis of a New Type of Double Helical Gear Transmission

Liang, Dong; Luo, Tianhong; Tan, Rulong

doi:10.1155/2018/1539849

Cited by 3 publications

(4 citation statements)

References 18 publications

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“…is greater than of the spur gear for its uniform load distribution due to the curve along with the teeth and thus having a larger axis contact ratio. But here, the trial has been performed using different materials and different torque referring to the standard possible dimension and parameters as per ickel alloy MP35N is giving the best results at a torque up to So, when stress is low, and the torque is high, the working life of the helical gear increases significantly [12].Thus, the S performed in ANSYS shows the superiority of the material over other standard materials.…”

Section: Figure 5 Stress Analysismentioning

confidence: 98%

Optimization and S-N life cycle analysis of helical gear with nickel alloy MP35N

Modi

Gawande

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Gears are most critical components in mechanical power transmission systems. Helical gear is used to transmit power or torque at high speed, heavy loads with smooth and silent operation. It involves many variables including specific materials with consideration of force/stress analysis and its mechanical properties. The optimal design and its lead curve is the primary objective of the present work. The bending and surface strength of the gear tooth is considered to be the main contributors to gear failure. Thus, stress analysis on gear is vital to reduce the failures for optimal design. Analytical design for helical gear has been done with five different sets of parameters and then 3D modelling and FEM carried out with 30 cases and optimization was carried out to derive the best selection so that the fillet stress can be reduced and the life can be improved. The optimum lead curve is determined by the design of the experiment, transmission error calculation and response surface method. The results obtained in analytical design and FEM have been validated and it has been observed that by means of life it’s clear that Nickel alloy MP35N is more valuable and better material for manufacturing helical gear.

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Section: Figure 5 Stress Analysismentioning

confidence: 98%

Optimization and S-N life cycle analysis of helical gear with nickel alloy MP35N

Modi

Gawande

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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“…This load could be torques, forces or pressures. If static structural is used, the TCA is called LTCA [12,13,25,26]. The purpose is the analysis of the mechanical parameters before the real production and real working on a construction.…”

Section: Ltcamentioning

confidence: 99%

“…Generation and mathematical model of tooth profiles are proposed based on the geometric relationship. Tooth profile equations are derived considering the developed equidistance-enveloping approach [12].…”

Section: Introductionmentioning

confidence: 99%

Designing and loaded tooth contact analysis of an Archimedean worm gear drive focusing for the connecting teeth of the worm wheel by loaded torques

Bodzás

2020

Mechanics & Industry

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The cylindrical worm gear drives are widely used in different mechanical construction such as in the vehicle industry, the robotics, the medical appliances etc. The main property of them is the perpendicular and space bypass axes arrangement. Quite high transmission ratio could be achieved because of the high number of teeth of the worm-wheel and a little number of threads of the worm. More teeth are connected on the worm-wheel at the same time that is why higher loads and power could be transferred. In this research an Archimedean type cylindrical worm gear drive was designed. After the determination of the geometric parameters the computer-aided models were created for the LTCA analysis. Knowing of the kinematic motions of the elements the contact points of the wrapping surfaces could be determined by mathematical way. The necessary coordinate system's arrangements and matrixes were also determined. Different torques were applied during the LTCA. The changing of the distribution of the normal stress and normal deformation into different directions was followed on each connecting tooth of the worm-wheel by the torques. Based on the results consequences were determined by the created diagrams which contain the torques and the analysed mechanical parameter for each tooth.

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“…Huang et al 15 presented a cycloidal profile of rolling sliding contact, and found that the profile has well accuracy retention. Liang et al 16 studied a double helical gear drive with a curve element structure, and concluded that its mechanical properties are good. In order to reduce the difficulty in gear design or its size, Li et al 17 used an arc pitch curve to replace the non-circular pitch curve, and realized the simple design of a non-circular gear drive.…”

Section: Introductionmentioning

confidence: 99%

Geometric design and dynamic characteristics of a novel abnormal cycloidal gear reducer

Gong

Luo

et al. 2023

Advances in Mechanical Engineering

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A precision reducer with a high ratio and a small size is essential for precise control of the position of a robotic arm. The rotate vector (RV) is a reducer widely applied in robotic joints. However, its complex structure, over-positioning and difficult assembly restrict its application industrial robots. Herein, a novel abnormal cycloidal gear (ACG) reducer is proposed. In comparison to the RV reducer, the proposed reducer has the characteristics of compact structure, less over-positioning and high ratio. The compound tooth profile of “epicycloid-involute hypocycloid” is used as the driving teeth for improving the performance of the reducer. The operating principle, mechanism design and reduction ratio of the proposed reducer is investigated, and the design method of the ACG tooth profile is also introduced. A dynamic characteristic model is established to verify the correctness of the design method of the reducer. A prototype of the ACG reducer is fabricated by using the computer numerical control (CNC) machining technology. Results show that the ACG reducer is capable to cover a wide range of reduction ratios with a simple mechanism. The numerical and theoretical results are in agreement, which depict the structural feasibility and correctness of the design method of the reducer. The adaptation of the ACG tooth profile as the driving teeth helps in improving the performance of the reducer.

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Generation and Meshing Analysis of a New Type of Double Helical Gear Transmission

Cited by 3 publications

References 18 publications

Optimization and S-N life cycle analysis of helical gear with nickel alloy MP35N

Optimization and S-N life cycle analysis of helical gear with nickel alloy MP35N

Designing and loaded tooth contact analysis of an Archimedean worm gear drive focusing for the connecting teeth of the worm wheel by loaded torques

Geometric design and dynamic characteristics of a novel abnormal cycloidal gear reducer

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