它(ta)们是导螺(luo)杆系(xi)列(lie)的一部分，用于(yu)使(shi)用电动(dong)(dong)(dong)机或手(shou)动(dong)(dong)(dong)手(shou)轮产生线(xian)(xian)性(xing)运动(dong)(dong)(dong)。这些(xie)螺(luo)钉(ding)通过在螺(luo)母固定的情况下转(zhuan)动(dong)(dong)(dong)螺(luo)钉(ding)或在螺(luo)钉(ding)保持在原位时(shi)转(zhuan)动(dong)(dong)(dong)螺(luo)母将(jiang)圆周(zhou)运动(dong)(dong)(dong)转(zhuan)换为线(xian)(xian)性(xing)运动(dong)(dong)(dong)。

影响所选螺(luo)(luo)杆系(xi)(xi)(xi)统(tong)(tong)(tong)类型(xing)的(de)(de)(de)因素有很多种(zhong)。滚珠丝杠系(xi)(xi)(xi)统(tong)(tong)(tong)比(bi)螺(luo)(luo)杆系(xi)(xi)(xi)统(tong)(tong)(tong)有成(cheng)效。在相(xiang)同容量水平下(xia)比(bi)较(jiao)两种(zhong)螺(luo)(luo)杆类型(xing)时; 滚珠丝杠系(xi)(xi)(xi)统(tong)(tong)(tong)比(bi)同等(deng)的(de)(de)(de)螺(luo)(luo)旋(xuan)系(xi)(xi)(xi)统(tong)(tong)(tong)需要比(bi)较(jiao)少的(de)(de)(de)马力(li)来移动相(xiang)同的(de)(de)(de)负载。然而，许多螺(luo)(luo)钉系(xi)(xi)(xi)统(tong)(tong)(tong)固有地(di)负载保(bao)持，不需要制动系(xi)(xi)(xi)统(tong)(tong)(tong)，并且还提供普遍的(de)(de)(de)引线选择以获(huo)得准确的(de)(de)(de)定位益处(chu)。当螺(luo)(luo)杆或螺(luo)(luo)母旋(xuan)转时，球被偏转到螺(luo)(luo)母的(de)(de)(de)球返回系(xi)(xi)(xi)统(tong)(tong)(tong)中(zhong)并且以连(lian)续路径行进通过返回系(xi)(xi)(xi)统(tong)(tong)(tong)到达滚珠螺(luo)(luo)母的(de)(de)(de)相(xiang)对端。

直播60多个盒子破解2020:丝杠厂家的(de)一个(ge)优(you)点是(shi)它们的(de)摩(mo)擦(ca)(ca)损失比(bi)较小，因为螺母和螺钉不会(hui)直接(jie)制成内容物。这(zhei)意(yi)味着(zhe)它们的(de)输出效率(lv)为70％至(zhi)95％，这(zhei)反(fan)过来(lai)意(yi)味着(zhe)使用(yong)滚(gun)珠丝杠的(de)线性(xing)执行(xing)器具有(you)比(bi)其(qi)对应物比(bi)较高的(de)力，速度和占(zhan)空比(bi)额定值(zhi)。较低(di)的(de)摩(mo)擦(ca)(ca)力也会(hui)减少物理磨损，使其(qi)比(bi)较具成本效益。

然而，滚珠丝杠的一个大问题是由于(yu)里面摩擦(ca)较小(xiao)而导致其反向驱动(dong)的可(ke)能(neng)性。这给线性致动(dong)器(qi)的使用者(zhe)带来了问题，因(yin)为除非使用制动(dong)系统，否则在不操作时它不能(neng)将其负(fu)载保持在适当位(wei)置。