用双隐层BP人工神经网络，建立了丝杆螺母副的磨损率与滑动速度关系的数学模型。
By the use of double hidden layered BP artificial neural network a mathematical model of relationship between wear rate of screw-nut pair and sliding speed is established.
本文用双隐层BP人工神经网络建立了丝杆螺母副表面边界膜温度特性的磨损自补偿数学模型。
The BP neural network used in the temperature characteristic of the boundary film on the screw-nut pairs surface in the wear-self-compensation system was established.
用BP人工神经网络建立了重载丝杆螺母副的摩擦学特性与载荷之间关系的磨损自补偿数学模型。
The BP neural network used the wear-self-compensation mathematics model of the relationship of tribology characteristic with load of the heavy load screw-nut pairs was established.
当垂直刀架下降时，由于摩擦力阻碍其下降，使丝杆的上螺旋面螺母的下螺旋面相接触，丝杆螺母的间隙在下面。
When the vertical turret decline, due to friction hinder its decline, the screw on helical screw nut under the physiognomy contact screw nut in the space below.
主要由框架、闸板、丝杆、螺母等零件构成，用手转动手轮使丝杆带着丝杆螺母和闸板沿水平方向往复运动，达到闸门的启闭目的。
It is mainly made up of frame, gate board, screw pole, nut etc. Rotate the handwheel by hand, then the screw pole drives the nut gate board move in horizontal to fro to open close the valve.
转动手轮使丝杆带动丝杆螺母和闸板沿水平方向往复运动，达到闸门的启闭目的，同时密封副在闸板运动中阻拦粉尘不进入传动腔内，无外漏污染。
Rotate the handwheel driving the pole and nut reciprocate in horizontal. At the same time the seal can prevent dust from entering driving body and out-leakage pollution does not exist.
上阀杆通过丝口旋在横膈膜止动螺母里。
配德国产双螺母自动消隙滚珠丝杆，进口直线导轨。
Germany double nuts automatic ball screw with imported linear guide rail.
注射成型装置包括基体螺母(2)及旋入基体螺母(2)中的工艺丝杆(4)和两个定位螺母(1)。
The injection moulding device comprises a substrate nut (2), a process screw rod (4) screwed into the substrate nut (2), and two positioning nuts (1).
这时螺母没有托住丝杆以及整个刀架部件的重量，由于摩擦阻力的作用而不下落。
Then screw nut did not try to jack up the entire turret components and the weight, the role without friction whereabouts.
本实用新型为左右立柱加顶部横梁的桥式结构，螺母丝杆升降装置沿立柱上下移动。
The utility model is of bridge type structure of right and left upright pillars adding top beam, the lifting device with nut screw mandrel is moving along the upright pillars.
伺服电机的输出轴固定齿形带副的带齿皮带轮，齿形带副的皮带轮与螺母丝杆副的螺母一体；
The electric cord transverse robot joint features that toothed belt pulley of the toothed belt pair is fixed on the output shaft of the servo motor and is integrated with the nut of nut-screw pair;
伺服电机的输出轴固定齿形带副的带齿皮带轮，齿形带副的皮带轮与螺母丝杆副的螺母一体；
The electric cord transverse robot joint features that toothed belt pulley of the toothed belt pair is fixed on the output shaft of the servo motor and is integrated with the nut of nut-screw pair;
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