A new model to estimate friction torque in a ball screw system[A].Eeo-Design:Teehnologies and Green Energy,2004.333-346.Olaru D, Puiu O C, Balan L C, et al. A new model to estimate friction torque in a ball screw system [C] // Product Engineering. Eeo-Design~ Teehnologies and ...
A modeling method for predicting friction torque of the preload double-nut ball screw based on thermal elastohydrodynamic lubrication Ball screw has become a key functional component commonly used in actuators of high-end machine tools because of its high transmission efficiency, low envi... J Zhao...
Taking into account the influence of the error in the contact points of balls and the groove on the contact force, the influence of manufacturing errors of grooves on friction torque was analyzed. The view that the manufacturing errors of groove in ball screw mechanism affect the value of the...
The variation tendency of the film thickness is similar to that of the screw speed, while the evolution of the friction torque at ball-screw interface is dependent on the ball spin speed. Compared to the ball-nut interface, the friction coefficient is higher on the ball-screw interface. ...
A torque transfer mechanism is provided for controlling the magnitude of a clutch engagement force exerted on a multi-plate clutch assembly that is operably disposed between a first rotary and a second rotary member. The torque transfer mechanism includes a clutch actuator assembly for generating and...
Cage type cage with ball screw PROBLEM TO BE SOLVED: To provide a ball screw with a cage type holder which can improve a torque performance by preventing the interference between the holder and a piece, the collision to a ball and the biting into the ball. 梶田 敏治,矢部 孝之,佐藤 ...
grey wolf optimization algorithm; P-PI cascade controller; dual-ball-screw feed drive system; dynamic characteristic parameter; characteristic variation; flexible coupling model MSC: 93C95 1. Introduction 1.1. Background of the Research Motion inaccuracy has been a limiting factor in high-precision ...
The stiffness of the individual kinematic joints (screw nut joints and bearing joints) of the feed system and the tension/compression and torque stiffnesses of the screw shaft on both sides of the nuts are the most significant factors affecting the dynamics of the system. Therefore, the ...
The ball screw is widely used in theX,Y, andZaxes of high-speed and high-precision machine tools; its importance is self-evident. Its dynamic characteristics directly affect the fatigue life of the mechanism, the bandwidth of the servo system [1,2,3], the positioning accuracy of the machin...
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