Design and Simulation Research on a New Type of Movable Wedge – Ball Overrunning Clutch

Wang, Peng; Li, Ping Kang; Kong, Ling Liang

doi:10.4028/www.scientific.net/amm.556-562.1362

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…Plenty of contemporary created and studying machines are now equipped with overrunning clutches [1][2][3][4]. Most of them require dynamic load estimation, which needs information about driving elements torsion stiffness, wear etc.…”

Section: Actuality and Statement Of The Problemmentioning

confidence: 99%

Safety-overrunning clutch elastic torque operation characteristic study

Protsenko,

Malashchenko,

Kłysz

et al. 2023

Diagnostyka

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The article deals with ball-type safety-overrunning clutches' elastic characteristics in overload mode. Main semi-couplings geometric parameters, particularly ball stroke and semi-couplings twisted angles, affecting operation speed and clutch elastic torque considered and obtained expressions for this parameters determination. Main clutch parts force interaction features in the final overload operation period analyzed and ratios for the clutch final period load are obtained. Based on current and previous studies, the expressions for elastic torque in the overload operation period are estimated. Obtained results could become the tool for the dynamics analysis of studied clutch-equipped driving operation during the clutch reengagement in overload mode. It is shown the expedience of using in high-speed driving clutches with large values of grooves to clutch axis inclination angle to decrease dynamic loads in driving, because in little and middle angles values provide nosedive dropping of final stage torque which can become a source of intense oscillations in the driving equipped with clutch in overload mode.

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Section: Actuality and Statement Of The Problemmentioning

confidence: 99%

Safety-overrunning clutch elastic torque operation characteristic study

Protsenko,

Malashchenko,

Kłysz

et al. 2023

Diagnostyka

View full text Add to dashboard Cite

show abstract

Design and Test of a New Type of Overrunning Clutch

Xue

Wang²,

Chen³

et al. 2022

Machines

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The overrunning clutch, or freewheel, is a kind of universal part with a one-way drive character, and is widely used in machinery. Typical roller overrunning clutches and sprag overrunning clutches have shortcomings such as low load bearing capacity, low torsional stiffness, and short life. For these reasons, studies on high-performance overrunning clutches have always been the focus of researchers. In this paper, a new type of double arc sprag overrunning clutch is proposed that overcomes the disadvantages of poor transmission capacity and low rigidity found in traditional overrunning clutches. The mechanical model of the double arc sprag overrunning clutch is established, the calculation formulas of the overrunning clutch engagement conditions and overrunning conditions are deduced, and the forces of the outer ring, roller, and inner star wheel of the overrunning clutch are also deduced. The contact stress and transmission torque of the overrunning clutch are compared with those of the roller overrunning clutch and the sprag overrunning clutch. The results show that the proposed overrunning clutch has the largest load capacity, which is 5.75 times that of the roller type overrunning clutch, and 2.1 times that of the sprag type overrunning clutch. The experiment shows that the proposed overrunning clutch has reliable bonding conditions in the oil-free and oil-immersed state, and the overrunning condition is sensitive, which indicates the effectiveness of the double arc sprag overrunning clutch. The roller overrunning clutch and double arc sprag overrunning clutch with the same geometric parameters are designed and manufactured, and the torsional stiffness test of the three types of overrunning clutches is carried out. The results show that the torsional stiffness of the double arc sprag overrunning clutch is the largest, which is 4.6 times of the roller overrunning clutch and 6.2 times of the sprag overrunning clutch.

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Design and Simulation Research on a New Type of Movable Wedge – Ball Overrunning Clutch

Cited by 2 publications

References 3 publications

Safety-overrunning clutch elastic torque operation characteristic study

Safety-overrunning clutch elastic torque operation characteristic study

Design and Test of a New Type of Overrunning Clutch

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