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首页> 外文期刊>Advances in Mechanical Engineering >A new model for predicting the mechanical efficiency of ball screws based on the empirical equations for the friction torque of rolling bearings
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A new model for predicting the mechanical efficiency of ball screws based on the empirical equations for the friction torque of rolling bearings

机译：基于滚动轴承摩擦转矩经验方程的滚珠丝杠机械效率预测新模型

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摘要

Based on the empirical equations for the friction torque of rolling bearings, this article proposes a new model for predicting the friction torque and mechanical efficiency of ball screws. Meanwhile, a novel measuring system is constructed to obtain the mechanical efficiency of ball screws, where both the axial load and rotational speed are stable and adjustable. The experimental results at a rotational speed of 1000?r/min agree well with the theoretical values calculated by the present method, which show that the mechanical efficiency of ball screws increases with increasing axial load. Moreover, the model built in this article is more applicable to a relatively high-speed condition. The new model can be easily used to obtain the friction torque and mechanical efficiency for ball screws, which is essential for improving the performance of ball screws and the computer numerical control machine tools.
机译：基于滚动轴承摩擦力矩的经验方程，提出了一种新的滚珠丝杠摩擦力矩和机械效率预测模型。同时，构造了一种新颖的测量系统来获得滚珠丝杠的机械效率，同时轴向载荷和转速均稳定且可调。转速为1000？r / min时的实验结果与本方法计算的理论值非常吻合，表明滚珠丝杠的机械效率随轴向载荷的增加而增加。而且，本文构建的模型更适用于相对高速的情况。新模型可轻松用于获得滚珠丝杠的摩擦扭矩和机械效率，这对于改善滚珠丝杠和计算机数控机床的性能至关重要。

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