滑动丝杠是一种利用螺纹副在丝杆和螺母之间的滑动摩擦来传递力和运动的机械元件,Ball Screw Pair Abstract: Ball screw pair is a widely used transmission element in machinery industry. This paper introduces the working principle, structure and classification of ball screw pair, and analyzes the factors affecting the transmission accuracy and service life of ball screw pair. Finally, the development direction of ball screw pair is briefly discussed. Keywords: ball screw pair, working principle, structure, classification, transmission accuracy, service life 1. Introduction Ball screw pair is a kind of transmission element which uses the rolling motion of steel balls to transfer power. It is widely used in various machinery industries due to its high transmission efficiency, high accuracy, long service life and other advantages. With the development of machinery industry, the demand for ball screw pairs is increasing day by day, and the research on ball screw pairs is becoming more and more important. 2. Working principle The working principle of ball screw pair is to convert the rotary motion of the motor into the linear motion of the nut by using the rolling motion of the steel balls. The steel balls are sandwiched between the screw and the nut, and roll back and forth along the spiral groove of the screw and the nut. The frictional resistance between the steel balls and the groove is small, so the transmission efficiency is high. 3. Structure and classification The structure of ball screw pair can be divided into three parts: screw, nut and steel ball. According to the shape of the screw, ball screw pairs can be divided into two types: cylindrical and conical. According to the structure of the return system, ball screw pairs can be divided into two types: internal circulation and external circulation. According to the accuracy of the screw and nut, ball screw pairs can be divided into three types: C0, C3 and C5. 4. Factors affecting transmission accuracy and service life The transmission accuracy and service life of ball screw pair are affected by many factors, such as manufacturing accuracy, preload, lubrication, installation accuracy and working conditions. Among them, the manufacturing accuracy of the screw and nut is the most important factor affecting the transmission accuracy and service life of the ball screw pair. The preload of the ball screw pair has a great influence on the transmission accuracy, and the appropriate preload can improve the transmission accuracy. Lubrication is also an important factor affecting the service life of ball screw pair. Proper lubrication can reduce wear and prolong the service life of ball screw pair. 5. Development direction With the development of machinery industry, the demand for ball screw pairs is increasing day by day, and the research on ball screw pairs is becoming more and more important. In order to improve the transmission accuracy and service life of ball screw pairs, it is necessary to improve the manufacturing accuracy of screws and nuts, optimize the preload and lubrication, and improve the installation accuracy. At the same time, the development of new materials and new technologies can also improve the performance of ball screw pairs. 6. Conclusion Ball screw pair is an important transmission element in machinery industry, which has the advantages of high transmission efficiency, high accuracy and long service life. The transmission accuracy and service life of ball screw pair are affected by many factors, such as manufacturing accuracy, preload, lubrication, installation accuracy and working conditions. In order to improve the performance of ball screw pairs, it is necessary to optimize the design and manufacturing, improve the installation accuracy and working conditions, and develop new materials and new technologies.,大型滚珠丝杠托架是一种用于支撑和引导滚珠丝杠的装置，通常用于机床、数控机床和其他自动化设备中,蓄能器具有快速响应、高效能和长寿命等优点，广泛应用于工业、农业、交通等领域,将两个端支撑座放在滚珠丝杠的两端，然后使用螺丝和螺母将其固定在法兰上,很我无法回答这个问题，因为没有提供足够的信息, 3. 三角形螺纹（Triangular thread）：常用于低负载、低精度和低速应用的滚珠丝杠, 4. 滚珠加工：将经过精密加工的材料进行滚珠加工，包括钻珠孔、滚珠丝杠螺纹加工、球道磨削等工艺，以使滚珠丝杠具有较高的传动效率和寿命, 重庆轧制滚珠丝杠加工需要先进行原材料的选材和预处理，然后进行螺纹加工、滚珠道加工、热处理等工序,如果磨损过度，还可能导致滚珠丝杠的断裂和故障，需要及时更换