推荐回答(3个)
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THK滚珠丝杆球保持器型精密滚珠丝杠SBN、SBK、HBN型,结构与特长:球保持器型滚珠丝杠使用球保持器,可消除钢球之间的碰撞和相互摩擦并提高润滑脂的保持性,因而实现了低噪音、低扭矩变动以及长期运行而免维护。另外,理想的钢球循环构造、循环部的强度增加以及球保持器的采用,使此滚珠丝杠具有优越的高速性。
THK丝杆标准库存精密滚珠丝杠轴端未加工品BIF、BNFN、MDK、MBF、BNF型,通过将精密滚珠丝杠的标准丝杠轴切割成普通长度,从而大规模地制造这一类型的滚珠丝杠。可以非常容易地进行丝杠轴端的加工。为满足各种要求的用途,THK提供的各种型号的滚珠丝杠具有不同类型的螺母∶双螺母型(BNFN型)、单螺母型(BNF型)、错位予压螺母型(BIF型)和微型滚珠丝杠(MDK型和MBF型)。
THK螺母丝杆标准库存精密滚珠丝杠轴端完成品BNK型,为了满足节省空间的要求,此型号的滚珠丝杠有标准化了的丝杠轴和螺母。将丝杠轴末端按支撑单元进行了标准化。安装形状除BNK0401、0501和0601是固定-自由之外,其它都是固定-支撑,并与马达直接相联的结构。丝杠轴和螺母的形状都为小型设计。与其他滚珠丝杆一样,如THK滚珠丝杆、上银滚珠丝杆、银泰滚珠丝杆、TBI滚珠丝杆如果与支撑单元、螺母座配套使用,就能直接装配。从而,能简单地获得高精度的进给装置。
THK滚珠螺母精密滚珠丝杠BIF型、DIK型、BNFN型、DKN型、BLW型、BNF型、DK型、MDK型、BLK/WGF型、BNT型,您可以从各种螺母类型和丝杠轴导程的组合中,选择符合使用条件的轴径和导程的组合。螺母类型包括回流管螺母(代表了系列中种类最为丰富的类型)、紧凑型单螺母和大导程端盖螺母。轴端未加工的丝杠轴类型,其丝杠轴按标准长度来进行批量制造;轴端完成加工的丝杠轴类型,在其中丝杠轴经过加工以配合相应的支撑单元。这2种类型均作为标准件提供。
THK滚珠丝杆精密螺母旋转式滚珠丝杠DIR、BLR型,标准导程的螺母旋转式滚珠丝杠DIR型,是把单螺母滚珠丝杠与支撑轴承一体化的螺母旋转式滚珠丝杠装置。其螺母为使用循环器方式的钢球循环结构,钢球沿着安装在螺母内部的循环器沟槽移动到相邻的滚动面,然后在负荷区域循环,从而进行无限滚动运动。此外,作为错位予压螺母,在单个螺母的中央部,给左右两方的螺纹以相位差,使轴向间隙达到负值(予压状态)。与其他滚珠丝杆一样,如THK滚珠丝杆、上银滚珠丝杆、银泰滚珠丝杆、TBI滚珠丝杆,与传统的双螺母型(2个螺母之间插有调整片的方式)相比,既小型又能获得平滑流畅的运动。
THK丝杆精密滚珠丝杠滚珠花键BNS-A、BNS、NS-A、NS型,滚珠丝杠滚珠花键是在一根轴上交叉开设了滚珠丝杠沟槽和滚珠花键沟槽的行程、旋转装置。并且滚珠丝杠和滚珠花键的螺母外圆上分别直接装入了专用支撑轴承。通过使螺母、花键母旋转或停止,只用一根轴就能够进行3种(旋转、直线和螺旋)形式的运动。其用途包括,水平多关节机器人的Z轴、装配机器人、自动装载机、加工中心机的ATC装置等,最适合于旋转运动与直线运动的组合装置。
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