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Ball screw definition
Source: Bearing network time: 2013-08-27
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â—ŽThe ball screw consists of a screw, a nut and a ball. Its function is to convert the rotary motion into a linear motion; this is the further extension and development of the ball screw; the significance of this development is to change the bearing from the rolling action to the sliding action. Because of its small frictional resistance; ball screws are widely used in various industrial equipment and precision instruments.
â—Ž Ball screw is the most commonly used transmission component in machine tools and precision machinery; its main function is to convert rotary motion into linear motion; or to convert torque into axial repetitive force; together with high precision, reversibility and High power features.
â—Ž Ball screw features:
1. Compared with the sliding screw pair, the driving torque is 1/3.
Because there are many balls between the screw shaft and the nut of the ball screw pair, it can get a high rolling power. Compared with the sliding screw pair, the driving torque reaches 1/3 or less, that is, it arrives. The power required for the same sports results is 1/3 of the use of the rolling screw pair. It is very helpful in saving electricity.
2, high-precision to ensure that the ball screw pair is connected with the highest level of mechanical equipment made in Japan; especially in the grinding, assembling, viewing the factory environment of each process, the temperature 0?? Chivalry? Because of the perfect quality management system, the precision is ensured.
3, micro feed can be ball screw pair because it uses ball movement, so the starting torque is very small, will not show the squatting phenomenon like sliding movement, can ensure the completion of accurate micro feed.
4, no backlash, rigid high ball screw pair can be added to the pressure, because the pre-pressure can make the axial gap to a negative value, and then get higher rigidity (in the ball screw by adding pressure to the ball, in practice In mechanical equipment, etc., because the repulsive force of the ball can increase the rigidity of the silk mother part).
5, high-speed feed can be ball screw because of high motion power, low heat, so high-speed feed (motion) can be completed.
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