Dynamic modelling and contact analysis of bearing-cycloid-pinwheel transmission mechanisms used in joint rotate vector reducers

Xu, Li Xin; Chen, Bing Kui; Li, Chaoyang

doi:10.1016/j.mechmachtheory.2019.03.035

Cited by 79 publications

(48 citation statements)

References 49 publications

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“…This sort of fixation caused unsteady loads on the pins and on the sleeves, and subsequently unsteady deformation of the sliding elements. In addition, the loads in cycloidal transmission bearings are influenced by the rotational periods of output flange and crankshafts [18].…”

Section: Measurements Of the Outer Diameters Of Sliding Sleevesmentioning

confidence: 99%

Wear Assessment of Sliding Sleeves in a Single-Stage Cycloidal Drive

Żurowski¹,

Olejarczyk²,

Zaręba³

2019

Adv. Sci. Technol. Res. J.

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In the paper, the issue of sliding sleeves wear in a cycloidal transmission was addressed. The working model of a cycloidal drive was constructed and tested in the special rig, and its sleeves underwent detailed analysis afterwards. The sleeves were produced by the sintering technique out of Selfoil bronze with self-lubricating properties. In particular, their surface appearance, weight loss and dimensional changes were assessed; as additionally, the chemical content of the gearbox oil was analyzed. The differences in the sleeves wear were pointed out, related to their positions in the transmission.

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Section: Measurements Of the Outer Diameters Of Sliding Sleevesmentioning

confidence: 99%

Wear Assessment of Sliding Sleeves in a Single-Stage Cycloidal Drive

Żurowski¹,

Olejarczyk²,

Zaręba³

2019

Adv. Sci. Technol. Res. J.

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“…In view of the vibration characteristics analysis of rolling bearing, researchers have already made many achievements (Cao et al, 2018;Singh et al, 2015;Xu et al, 2019). Sassi et al (2007) gave the calculation formulae of impact force between roller and bearing defect.…”

Section: Introductionmentioning

confidence: 99%

A model-based local fault size measurement method of rolling bearing considering load influence

Liu

Chen

et al. 2021

Transactions of the Institute of Measurement and Control

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Rolling bearing local fault vibration mechanism research is the theoretical basis of advanced bearing fault diagnosis and size measurement technology. In this paper, the additional displacement and impact force excitation of inner and outer ring local faults under low speed and heavy load condition are analysed, and rolling bearing local fault vibration model is established. The simulated dual impulse characteristics have higher accuracy under low speed and heavy load condition compared with other traditional local fault models. The outer and inner ring fault simulated dual impulse interval errors are 6.7% and 1.1%, respectively. Then the local fault vibration mechanism is analysed, and the influence of heavy load condition on dual impulse characteristic is not negligible. Finally, a size measurement method of bearing local fault based on vibration model is proposed. Two sizes of outer ring fault bearing are tested in four different working conditions, and the average measurement error is 3.78%. The results show that the proposed method can overcome the influence of different working conditions and accurately measure different local fault sizes.

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“…Wang et al [9] proposed a tooth contact analysis model for an RV reducer by dividing the contact area into several differential elements to demonstrate the effects of the tooth profile modification and load on the transmission precision, mechanical properties, and transmission efficiency. Xu et al [10,11] proposed a contact dynamics model to analyze the contact dynamics of the KHV-type cycloid speed reducer while considering the effects of a turning-arm cylindrical roller. Sun et al [12] proposed a new tooth contact analysis (TCA) method based on the discrete point tooth profile for a new type of CBR (China Bearing Reducer) reducer.…”

Section: Introductionmentioning

confidence: 99%

A Semi-Analytical Load Distribution Model for Cycloid Drives with Tooth Profile and Longitudinal Modifications

Zhang

Wang

et al. 2020

Applied Sciences

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The current load distribution model for cycloid drives based on the Hertz contact stiffness typically assumes a two-dimensional planar problem without considering the tooth longitudinal modification effects, which fails to comply with the practical situation. In this paper, this issue is clarified by developing a semi-analytical load distribution model based on a three-dimensional and linear elastic solution. Unloaded tooth contact analysis is introduced to determine the instantaneous mesh information. The tooth compliance model considering tooth contact deformation is established by combining the Boussinesq force–displacement relationships in elastic half-space with an influence coefficient method. With this, the loads, contact patterns, and loaded transmission error are calculated by enforcing the compatibility and equilibrium conditions. Comparisons to predictions made with the assumption of Hertz contact stiffness are presented to demonstrate the effectiveness of the proposed model, which shows good agreement. At the end, the effect of tooth longitudinal modifications on load distributions is investigated along with various loading conditions. This study yields an in-depth understanding of the multi-tooth contact characteristics of cycloid drives and provides an effective tool for extensive parameter sensitivity analysis and design optimization studies.

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Dynamic modelling and contact analysis of bearing-cycloid-pinwheel transmission mechanisms used in joint rotate vector reducers

Cited by 79 publications

References 49 publications

Wear Assessment of Sliding Sleeves in a Single-Stage Cycloidal Drive

Wear Assessment of Sliding Sleeves in a Single-Stage Cycloidal Drive

A model-based local fault size measurement method of rolling bearing considering load influence

A Semi-Analytical Load Distribution Model for Cycloid Drives with Tooth Profile and Longitudinal Modifications

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