Research results of planetary roller screw transmission for high-precision mechanisms

Boyko, Stoimenov; Golovenkin, E. N.; Silivanov, R. P.; Lekanov, A. V.; Melkomukov, A. A.

doi:10.1088/1757-899x/734/1/012032

Cited by 3 publications

(3 citation statements)

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“…The GDU (Figure 3) is developed as a modular transformer of a rotary input movement to a secured specified linear motion. Studies on space-qualified screw mechanisms can be found in [16][17][18]. A modified ball screw from August Steinmeyer GmbH was chosen for the GDU.…”

Section: Gripper Drive Unitmentioning

confidence: 99%

Design and testing of mechanical gripping tools for On Orbit assembling

Mulsow,

Dabrowski,

Mallwitz

et al. 2024

J. Phys.: Conf. Ser.

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On-orbit servicing, assembly and manufacturing (OSAM) opens a new frontier for robotic systems. A gripping tool for such applications must meet several requirements of space mechanics, such as safety, precision and reliability, while functioning in space conditions. This paper presents a development cycle of such tools designed for the assembly of a small satellite antenna on the International Space Station. Two different grippers, driven by a common drive unit, are presented, conforming to a Multi-Purpose-Tool (MPT) for orbital robotic systems and meeting the requirements of a defined OSAM mission. Both design drivers and concepts and specific component selection are described. Proposed mechanical solutions for safe gripping of objects including space tribology aspects are covered. To adapted to operations not foreseen, the grippers and the drive unit can be reconfigured. The tool architecture presented promotes modularity, scalability, reusability and convertibility of designs, thus facilitating rapid integration in similar missions. A test campaign for critical requirements will be in place to ensure reliable performance of the tools for use in the space environment.

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Section: Gripper Drive Unitmentioning

confidence: 99%

Design and testing of mechanical gripping tools for On Orbit assembling

Mulsow,

Dabrowski,

Mallwitz

et al. 2024

J. Phys.: Conf. Ser.

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“…Based on new theory and mechanism, Morozov and Zhdanov 43 explored new types of the PRSM considering geometric parameters, thread helix angles, and roller diameter ratios. Boyko et al 44 designed a high-precision mechanism with split nut for aerospace communication equipment. The important parameters such as transmission accuracy, axial stiffness and working lifetime of the PRSM were obtained through experiments.…”

Section: Errors Analysismentioning

confidence: 99%

Review on errors and transmission characteristics of the planetary roller screw mechanism

Cheng,

Zu,

Zhou

2024

Proceedings of the Institution of Mechanical Engineers, Part C:

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The planetary roller screw mechanism, a novel high-performance electromechanical servo drive component, holds a central position in leading-edge equipment, attracting significant attention within the engineering community. This paper conducts a comprehensive review of current research and recent breakthroughs in the analysis of errors and transmission characteristics associated with the planetary roller screw mechanism. Drawing on the unique attributes of this mechanism, the analysis of errors is undertaken from two distinct angles: motion errors and machining errors. A foundational examination of the bearing characteristics of this mechanism serves as the cornerstone for assessing its transmission properties. The report delves into the impact on transmission performance from the perspectives of both accuracy and efficiency. In this study, each model and related literature are exhaustively described and examined in detail. Furthermore, we critically evaluate the key discoveries emanating from various models and numerical simulations, shedding light on potential future directions in the realm of errors and transmission characteristics of the planetary roller screw mechanism.

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“…(Jones, 2013). Owning to its superior characteristics, PRSM has been widely used in aerospace (Blinov et al, 2019), satellites (Boyko et al, 2020), radio telescopes (Mamaev et al, 2015), oil exploration (Parker et al, 2018), medical equipment (Rosenberg et al, 1982) and many other fields. With the rapid development of mechatronics, particularly the electro-mechanical actuator (EMA), the application of PRSM will be further expanded.…”

Section: Introductionmentioning

confidence: 99%

A roller taper modification method for load distribution optimization of planetary roller screw mechanism

Wei

Zhou³

et al. 2022

JAMDSM

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Planetary roller screw mechanism (PRSM) is a novel high-performance linear transmission device. The non-uniformity of load distribution over PRSM threads is a vital problem severely affecting its load-carrying capacity and service performance. This work aims to develop a PRSM load distribution improvement approach with good manufacturability and general applicability. A roller taper modification method for load distribution optimization is proposed based on the deformation compatibility and force equilibrium, then the roller grinding experiment is carried out. Finally, the effects of external load and thread number on load sharing optimization are analyzed to examine the applicability. The results show that the maximum reduction in load sharing coefficient reaches 31.4% after roller taper modification under the case studied. The taper modification of roller threads could be rapidly implemented by only adjusting the roller grinding angle. The roller grinding experiment results agree well with the theoretical values, and the maximum error is no more than 2 μm. As the external load and thread number change, the improvement approach still works well. The proposed method has been verified by comparisons with finite element simulations and available references. This work can provide theoretical guidance for the optimal design of PRSM and has good engineering application prospects.

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Research results of planetary roller screw transmission for high-precision mechanisms

Cited by 3 publications

References 1 publication

Design and testing of mechanical gripping tools for On Orbit assembling

Design and testing of mechanical gripping tools for On Orbit assembling

Review on errors and transmission characteristics of the planetary roller screw mechanism

A roller taper modification method for load distribution optimization of planetary roller screw mechanism

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