-
公开(公告)号：EP0350196B2
公开(公告)日：1996-10-09
申请号：EP89306532.6
申请日：1989-06-27
CPC分类号： B03C1/18 , B03C1/12 , B03C1/247 , Y02P70/171
-
公开(公告)号：EP0350196A2
公开(公告)日：1990-01-10
申请号：EP89306532.6
申请日：1989-06-27
CPC分类号： B03C1/18 , B03C1/12 , B03C1/247 , Y02P70/171
摘要： A drum-like rotor having numerous, closely spaced, elongated rows forms of permanent magnets arranged end-to-end and secured to the outer surface of the rotor, produces a high-density, rapidly reversing magnetic field in a band-like zone which is spaced a short distance from,and extends along the length of,the rotor outer surface. The magnetic field induces eddy currents in pieces of different metals passed through the zone which produces repulsive magnetic forces of different intensities in different metal pieces, and thus, magnetically separates such pieces. The rows of magnets, in their radial direction, are alternatingly thicker and thinner,so that the outer surface of the thinner rows are depressed relative to their adjacent thicker rows. The outer surface of the magnets of each thicker row have a polarity which is opposite to the polarity of their next adjacent thicker row magnets, and the direction of the magnetic polarity of the magnets of the thicker rows are radial relative to the rotor. The side edges of the magnets of the thinner rows have the same polarity as the polarity of the outer surfaces of their adjacent thicker row magnets. The directions of the magnetic polarity of the thinner row magnets are generally circumferential, relative to the rotor. Thus, magnetic flux flows transversely through each of the thinner row magnets and then radially outwardly through their adjacent thicker row magnets, returning over the exposed surfaces of the thinner row magnets to the next adjacent row of thicker magnets and, therefore, radially inwardly of the rotor and transversely of the thinner row. Thus, the direction of the magnetic flux flow through the zone changes as the successive thicker and thinner rows pass alongside of the zone as the rotor rotates.
摘要翻译： 具有多个紧密间隔的细长行形式的鼓形转子，永久磁铁的形式被端对端并且固定到转子的外表面，在带状区域中产生高密度，快速反转的磁场， 与转子外表面隔开很短的距离并沿其长度延伸。 磁场感应通过该区域的不同金属片的涡流，其在不同的金属片中产生不同强度的排斥磁力，因此磁性地分离这些片。 磁体排在其径向上交替地变得更厚和更薄，使得较薄排的外表面相对于它们相邻的更厚的行被压下。 每个较厚行的磁体的外表面具有与其下一个较厚的行磁体的极性相反的极性，较厚行的磁体的磁极的方向相对于转子是径向的。 较薄行的磁体的侧边缘具有与其相邻的较厚排磁体的外表面的极性相同的极性。 较薄排磁体的磁极方向相对于转子大体上是周向的。 因此，磁通量横向流过每个更薄的行磁体，然后径向向外通过其相邻较厚的行磁体，将较薄排磁体的暴露表面返回到下一个相邻的较厚磁体行，并因此在径向向内 转子和较薄排的横向。 因此，当转子旋转时，流过该区域的磁通量的方向随着连续的更厚和更薄的排沿着该区域而越过。
-
公开(公告)号：EP0350196B1
公开(公告)日：1993-12-22
申请号：EP89306532.6
申请日：1989-06-27
CPC分类号： B03C1/18 , B03C1/12 , B03C1/247 , Y02P70/171
-
公开(公告)号：EP0350196A3
公开(公告)日：1990-12-19
申请号：EP89306532.6
申请日：1989-06-27
CPC分类号： B03C1/18 , B03C1/12 , B03C1/247 , Y02P70/171
摘要： A drum-like rotor having numerous, closely spaced, elongated rows forms of permanent magnets arranged end-to-end and secured to the outer surface of the rotor, produces a high-density, rapidly reversing magnetic field in a band-like zone which is spaced a short distance from,and extends along the length of,the rotor outer surface. The magnetic field induces eddy currents in pieces of different metals passed through the zone which produces repulsive magnetic forces of different intensities in different metal pieces, and thus, magnetically separates such pieces. The rows of magnets, in their radial direction, are alternatingly thicker and thinner,so that the outer surface of the thinner rows are depressed relative to their adjacent thicker rows. The outer surface of the magnets of each thicker row have a polarity which is opposite to the polarity of their next adjacent thicker row magnets, and the direction of the magnetic polarity of the magnets of the thicker rows are radial relative to the rotor. The side edges of the magnets of the thinner rows have the same polarity as the polarity of the outer surfaces of their adjacent thicker row magnets. The directions of the magnetic polarity of the thinner row magnets are generally circumferential, relative to the rotor. Thus, magnetic flux flows transversely through each of the thinner row magnets and then radially outwardly through their adjacent thicker row magnets, returning over the exposed surfaces of the thinner row magnets to the next adjacent row of thicker magnets and, therefore, radially inwardly of the rotor and transversely of the thinner row. Thus, the direction of the magnetic flux flow through the zone changes as the successive thicker and thinner rows pass alongside of the zone as the rotor rotates.
-
-
-
搜索结果
4 条记录 (耗时 0.011 秒)
