公开(公告)号：US4891077A

公开(公告)日：1990-01-02

申请号：US263371

申请日：1988-10-27

申请人： Thomas P. Roll ,  Dwight E. Booth

发明人： Thomas P. Roll ,  Dwight E. Booth

IPC分类号： B23K26/00 ,  B23K26/36 ,  B23K26/38 ,  F16D27/112 ,  F16D27/14 ,  H02K49/00

CPC分类号： F16D27/14 ,  B23K26/384 ,  F16D27/112 ,  F16D2027/008 ,  F16D2250/00 ,  Y10S148/903 ,  Y10T29/49075

摘要： A method of forming slots in the metal coupling disc (e.g., the armature or rotor) of an electomagnetic coupling such as a clutch or brake. The method is carried out by effecting relative movement between the coupling disc and a laser beam to cause the beam to melt portions of the disc and thereby form slots through the disc. The laser beam is defocused relative to the disc in order to enable a relatively low powered laser beam to form relatively wide slots in the disc. A pressurized jet of gas is directed against the disc immediately adjacent the beam and acts to blast metal from the slots and assist in the formation of wide slots.

摘要翻译： 在诸如离合器或制动器的电磁耦合的金属联接盘（例如，电枢或转子）中形成槽的方法。 该方法通过实现耦合盘和激光束之间的相对运动来实现，以使光束熔化盘的部分，从而通过盘形成槽。 激光束相对于光盘散焦，以便能够使相对低功率的激光束在光盘中形成相对较宽的狭缝。 加压的气体射流被引导靠近光束的光盘，并且用于从槽中喷射金属并且有助于形成宽的槽。

公开(公告)号：US4567975A

公开(公告)日：1986-02-04

申请号：US581279

申请日：1984-02-17

申请人： Thomas P. Roll

发明人： Thomas P. Roll

IPC分类号： B23Q9/00 ,  F16D27/112 ,  F16D48/06 ,  F16D27/00

CPC分类号： F16D27/112 ,  B23Q9/0021 ,  F16D48/064 ,  F16D2027/002 ,  F16D2027/008 ,  F16D2500/1022 ,  F16D2500/5029 ,  F16D2500/50293 ,  F16D2500/70223 ,  F16D2500/70229 ,  F16D2500/70418 ,  F16D2500/7042 ,  F16D2500/7061

摘要： An apparatus and method is provided for energizing a multiple-turn winding of an electromagnetic coupling having an armature and a rotor separated by an air gap; in response to the closure of the air gap, the energization of the winding is reduced so as to reduce the torque coupling between the armature and rotor. By reducing the initial torque coupling between the armature and rotor the frictional vibrations of the coupling--which occur during engagement of the armature and rotor and which generate audible noise--are reduced and the coupling engages more smoothly and quietly. Preferably, the energization of the winding is reduced in response to the increased magnetic inductance of the winding resulting from the closure of the air gap between the armature and rotor. Also, the torque coupling between the armature and rotor is preferably minimized in response to the increased magnetic inductance so as to provide 100% slippage upon initial contact of the rotor with the armature. From the reduced energization of the winding occurring after the closure of the air gap, the energization of the winding is controlled to gradually increase to full torque coupling and 0% slippage. To further reduce the audible noise upon engagement of the armature and rotor, the flux gaps in both the armature and rotor are composed of non-magnetic areas which are asymmetrically positioned in the magnetic material comprising the armature and rotor. By asymmetrically positioning the non-magnetic areas, the audible noise from the vibrations of the armature and rotor is reduced; the vibrations are caused by the frictional slippage between the armature and rotor upon their initial engagement.

摘要翻译： 提供一种装置和方法，用于激励具有由气隙隔开的电枢和转子的电磁耦合的多匝绕组; 响应于气隙的关闭，绕组的通电被减小，以便减小电枢和转子之间的扭矩耦合。 通过减小电枢和转子之间的初始转矩耦合，减小了在电枢和转子接合期间发生并产生可听见噪声的耦合的摩擦振动，并且耦合更平稳和安静地接合。 优选地，响应于由于电枢和转子之间的气隙的关闭导致的绕组的增加的磁感应而减小绕组的通电。 此外，电枢和转子之间的扭矩耦合优选地响应于增加的磁感应而最小化，以便在转子与电枢的初始接触时提供100％的滑动。 从关闭气隙后发生的绕组通电减少，控制绕组的通电，逐渐增加到全转矩耦合和0％滑动。 为了在电枢和转子接合时进一步降低可听见的噪音，电枢和转子两者中的磁通间隙由非磁性区域组成，这些非磁性区域不对称地位于包括电枢和转子的磁性材料中。 通过不对称地定位非磁性区域，来自电枢和转子的振动的可听见的噪声减小; 振动是由于电枢和转子在其初始接合时的摩擦滑动引起的。