What should be paid attention to in the pre-tightening method of the ball screw? The editor thinks that this should be treated according to the pure transmission situation. Generally, the transmission is required to be flexible and a certain return gap is allowed. However, the reverse gap is generally not too large and kept at a few wire. Most choices are made of single nuts, which are relatively cheap in price and more flexible in transmission. In the case of precision transmission that does not require a backlash, double nut pre-tightening is required. The double nut can adjust the pre-tightening force, maintain the strength, and repeat the adjustment. In addition, it should be noted that when the stroke space is limited, the offset preload can be selected. This method has a relatively small preload and is not convenient for repeated adjustments. It is generally not selected in the selection process.
The main function of the ball screw is to convert the rotary motion into linear motion. It has the advantages of high precision and high efficiency. The ball screw is the most commonly used transmission element in tool machinery and precision machinery. Its main function is to convert the rotary motion. Into linear motion, or convert torque into axial repetitive force, at the same time it has the characteristics of high precision, reversibility and high efficiency. Due to its low frictional resistance, ball screws are widely used in various industrial equipment and precision instruments.