公开(公告)号：US4565956A

公开(公告)日：1986-01-21

申请号：US658466

申请日：1984-10-09

申请人： Peter Zimmermann ,  John W. Teape

发明人： Peter Zimmermann ,  John W. Teape

IPC分类号： H02K29/00 ,  H02P6/06 ,  H02P25/03 ,  H02P25/034 ,  H02P5/28

CPC分类号： H02P25/03 ,  H02P25/034

摘要： To provide for fast response of a servo drive with a synchronous machine in which the same torque is available over the entire rotational range of the machine regardless of angular position of the rotor, phase currents to phase windings, preferably three-phase, are controlled in dependence on required torque, and steered to the respective phase windings by a rotor position transducer in such a manner that the sum of all the phase currents remains constant, and is connected to the respective phase windings, in pulses, during an electrical angular range when induced armature counter electromotive force voltages in the respective phase windings, which have an essentially trapezoidal shape, are in their flat or unvarying range within the voltage distribution during revolution of the rotor. Thus, currents are supplied to the phase windings only when the counter EMF voltages are essentially constant. A full-wave bridge-type current supply is suitable, using semiconductor switches, which are suitably controlled to steer currents to the respective phase windings, thus reducing commutating losses since only one of the semiconductor switches is switched ON or OFF, the remaining semiconductor switches functioning only as current steering elements.

摘要翻译： 为了提供伺服驱动器与同步电机的快速响应，其中在整个转子的整个旋转范围内可以获得相同的扭矩，而不管转子的角位置如何，相电流到相绕组，优选三相的控制在 依赖于所需的转矩，并且以转子位置传感器转向相应的相绕组，使得所有相电流的和保持恒定，并且在电角度范围内以脉冲方式连接到相应的相绕组， 具有大致梯形形状的各相绕组中的感应电枢反电动势电压在转子旋转期间的电压分布内处于平坦或不变的范围内。 因此，仅当反电势电压基本恒定时才将电流提供给相绕组。 全波桥式电流源适合使用半导体开关，其适当地被控制以将电流转向相应的相绕组，从而减少换向损耗，因为只有一个半导体开关被接通或断开，其余的半导体开关 仅用作当前的转向元件。

公开(公告)号：US4640320A

公开(公告)日：1987-02-03

申请号：US651873

申请日：1984-09-18

申请人： Gerald Avison ,  John W. Teape ,  Paul H. F. Willer

发明人： Gerald Avison ,  John W. Teape ,  Paul H. F. Willer

IPC分类号： B25B31/00 ,  B65B13/02 ,  B65B13/34 ,  B65B27/06 ,  B65D63/10 ,  B21F9/02

CPC分类号： B65D63/1063 ,  B65B13/027 ,  Y10S206/82 ,  Y10T24/1498

摘要： A gun for applying cable ties includes a pinch wheel for acting on the flat tail of the tie to drive the tie from the gun, the tie being guided (as it is advanced, tail-first) around a nose loop guide. The tie finishes with its head engaged with a threader which is then lifted to lift the tie head and thus cause the tail to pass through the head aperture, become interlocked therein and project from the lower side of the head. Then the threader is lowered to lower the head and engage the projecting end of the tail with a pinch wheel which serves to tension the tie. The ties are fed from a bandolier of side-by-side ties in which they are interconnected at their heads and tail tips by continuous strips running along the edges of the bandolier, successive ties being cut from the bandolier while leaving the two strips intact.

摘要翻译： 用于施加电缆扎带的枪包括夹紧轮，用于作用在领带的平尾上以从枪驱动绑带，领带被引导（沿着先进的，先尾先后）围绕鼻环引导件。 领带结束，其头部与穿线器相结合，然后将穿线器提起以提起领带头，从而使尾部穿过头部孔口，变得互锁并从头部的下侧突出。 然后，穿线器被降下以降低头部并且用用于张紧系带的夹紧轮与尾部的突出端接合。 领带是从一个并肩关系的腰带送来的，它们的头部和尾部通过沿着带式鞋边缘的连续条带相互连接，连续的领带从带式带上切下，同时保持两条条带的完整。