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　　全网易懂 1分钟讲透机器人丝杠 仅供参考学习不做投资建议

　　The most understandable explanation on the entire network in 1 minute. Robot screw is for reference only, not for investment advice

　　前面我们讲过减速器、灵巧手；今天咱来说说；机器人的第叁个大件；

　　We have talked about reducers and dexterous hands before; Today, let's talk about it; The third major component of robots;

　　丝杠；

　　厂肠谤别飞;

　　丝杠重要到什么程度呢？；可以说机器人全身肢体运动；都离不开它；

　　To what extent is the screw important?; It can be said that robots have full body limb movements; They cannot do without it;

　　因为电机输出的是旋转动力；而胳膊腿的抬手、迈步都是；直线运动而不是绕圈运动吧；所以怎么才能把电机的旋转运动；转化为直线运动呢？；就需要丝杠；

　　Because the motor outputs rotational power; And the lifting and stepping of arms and legs are all; Straight line motion instead of circular motion, right; So how can we control the rotational motion of the motor; What about converting it into linear motion?; We need a screw;

　　下面我用大白话来解释；丝杠就是一个螺母+一根螺杆；当螺杆被电机带动；做旋转运动时；螺母就不断在螺杆上前进；就形成了直线运动；这就是普通的梯形滑动丝杠；而反之当螺母旋转；驱动螺杆做直线运动；就叫反向式丝杠；梯形丝杠的摩擦阻力；会降低传动的精度和效率；于是工程师把梯形螺纹改为；圆弧并放上珠子来减少摩擦；当螺杆旋转时珠子滚动；带动螺母向前运动；这就是滚珠丝杠；

　　I will explain in plain language below; A screw is a nut and a screw; When the screw is driven by the motor; When performing rotational motion; The nut keeps moving forward on the screw; It forms a linear motion; This is the most common trapezoidal sliding screw; On the contrary, when the nut rotates; Drive the screw to perform linear motion; It's called a reverse screw; Friction resistance of trapezoidal screw; Will reduce the accuracy and efficiency of transmission; So the engineer changed the trapezoidal thread to; Arc and place beads to reduce friction; When the screw rotates, the beads roll; Drive the nut forward; This is a ball screw;

　　传动效率能超过85%；适用手术机器人；这类高精度的操作；

　　The transmission efficiency can exceed 85%; Suitable for surgical robots; This type of high-precision operation;

　　但滚珠丝杠的缺点是每个珠子和螺杆都是点的接触；所以受点力就容易磨损；还需要润滑防尘；那让机器人干点脏活累活；这滚珠丝杠可就扛不住了；于是；工程师又把珠子改为了柱子；一字之差，却是天地之别；那滚柱丝杠又是怎么回事呢；当螺杆做旋转运动时；带动滚柱自转并沿螺杆公转；就像行星自转和公转一样；所以名字叫做行星滚柱丝杠；

　　But the disadvantage of ball screws is that each bead and screw are in point contact; So it is easy to wear out when subjected to some force; Lubrication and dust prevention are also required; Let the robot do some dirty and tiring work; This ball screw can't handle it anymore; therefore; The engineer changed the beads into pillars again; The difference of one word is the difference between heaven and earth; What's going on with the roller screw; When the screw rotates; Drive the roller to rotate and revolve along the screw; Just like the rotation and revolution of planets; So the name is planetary roller screw;

　　柱子的接触面积大；受力面积更大；多根滚柱的承载力就更强；传动效率也更高达到90%以上；所以行星滚柱丝杠传动精度高；承载大、耐冲击、寿命长；像特斯拉翱辫迟颈尘耻蝉机器人的；大臂、小臂、大腿和小腿的；14个线性执行器；用的都是反向式行星滚柱丝杠；不过这行星滚柱丝杠可娇贵着呢；

　　The contact area of the pillar is large; The force bearing area is larger; The load-bearing capacity of multiple rollers is stronger; The transmission efficiency is also higher, reaching over 90%; So the planetary roller screw transmission has high accuracy; Large load-bearing capacity, impact resistance, and long service life; Like Tesla Optimus robots; The upper arm, lower arm, thighs, and calves; 14 linear actuators; We use reverse planetary roller screws; However, this planetary roller screw is quite delicate;

　　生产工艺规格极高；目前主要被德国的舍弗勒和；日本的罢贬碍、狈厂碍等厂商垄断；

　　The production process specifications are extremely high; At present, it is mainly supported by Germany's Schaeffler and; Japanese manufacturers such as THK and NSK monopolize;

　　国产替代刚刚发力；其中主要有长盛、五洲、北特；秦川、双林、恒立液压；南方精工、贝斯特、震裕；之后视频咱扒一扒；丝杠国产替代的进度可好？；留言里告诉我；

　　Domestic substitution has just begun to gain momentum; Among them, there are mainly Changsheng, Wuzhou, and Beite; Qinchuan, Shuanglin, Hengli Hydraulic; Southern Precision, Best, Zhenyu; Afterwards, let's take a look at the video; How is the progress of domestic substitution of lead screws?; Tell me in the message;