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The ball screw drive efficiency as high as 85% -95%, the traditional sliding screw the vice 2-4 times , As shown in Figure,
Therefore, in order to be able to get a smaller torque of a larger force can also be converted into linear motion by the rotation (reversible movement).
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Point of contact for the ball screw rolling movement, the work of a small frictional resistance, high sensitivity, vibration-free start-up, low-speed without crawling, it can control the precision micro-feed.
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Ball screw movement in the smaller temperature rise, and the elimination of axial pre-clearance and pre-tensile screw to compensate for the thermal elongation, it will be higher positioning accuracy and repeat positioning accuracy. |
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Ball rolling contact have been considered by the Department sclerosis (HRc58-63) to deal with, and with the precision grinding, high antifatigue, rolling friction and Morocco minimal consumption of high precision and the life-maintaining.
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As the movement smooth, responsive, non-blocking, non-slip, with several sets of the same ball screw drive at the same time, deputy several of the same components or devices that can be better synchronized movement. |
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And other mechanical transmission, hydraulic drive, ball screw lower failure rate, repair and maintenance is also very simple, just the general lubrication and dust. Special occasions can be no lubrication in the work of the state. |
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