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公开(公告)号：US4948091A
公开(公告)日：1990-08-14
申请号：US481049
申请日：1990-02-16
申请人： Ikumi Satoh , Jun Nakano , Riichiroh Harada , Tatsuhiko Koba , Yuichi Fujita , Kazumi Shima
发明人： Ikumi Satoh , Jun Nakano , Riichiroh Harada , Tatsuhiko Koba , Yuichi Fujita , Kazumi Shima
CPC分类号： F16K31/04 , F16K1/12 , F16K31/082 , H02K7/06
摘要： A motor-operated valve is constructed such that a stator is provided outside of a nonmagnetic tubular member allowing flow of a fluid, with stator coils wound around a plurality of magnetic poles, and a plurality of permanent magnets are secured to an operating surface of each magnetic pole. The permanent magnets are magnetized into a number of pole-pairs arranged at a constant pitch. A rotor is rotatably supported inside of the tubular member. A number of induction teeth are formed along the circumference of the rotor at a pitch equal to the pitch of the pole-pairs of the permanent magnets, and the total number of the induction teeth is so selected that it is different from the total number of the pole-pairs of the permenant magnets by an amount equal to an even number. A mechanism including a rotation-preventing means is also provided in the rotor for converting the rotating movement of the rotor into a linear movement of a valve member.
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公开(公告)号：US5065061A
公开(公告)日：1991-11-12
申请号：US481046
申请日：1990-02-16
申请人： Ikumi Satoh , Jun Nakano , Riichiroh Harada , Tatsuhiko Koba
发明人： Ikumi Satoh , Jun Nakano , Riichiroh Harada , Tatsuhiko Koba
摘要： An electromagnetic actuator for a valve stem comprising a stator core having concentratedly wound coils around salient poles and the stator is positioned outside of a tubular member made of a nonmagnetic material. The electromagnetic actuator for a valve stem also has a rotor provided inside the tubular member for driving a threaded operating shaft such that it operats an objective member reciprocally an electromagnetic actuator for a valve stem is further constructed such that permanent magnets, alternately magnetized into a number of pole-pairs, are arranged along the surface of each salient pole of the stator core at a constant pitch, while a number of induction teeth are formed along the circumference of the rotor at a pitch equal to the pitch of the pole-pairs of the permanent magnets. The difference between the total number of the induction teeth and the total number of the polepairs of the permanent magnets is made equal to an even number. The rotor is rotated and the operating shaft is driven when an electromagnetic actuator for a valve stem operates as a pulse motor by alternating excitation of the coils.
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公开(公告)号：US07538456B2
公开(公告)日：2009-05-26
申请号：US10562972
申请日：2004-07-08
IPC分类号： H02K41/02
CPC分类号： H02K41/03
摘要： In a moving magnet type linear actuator (10), a stator (30) having an armature (32) including a magnetic iron core (33) fixed on a stator base (31) and an armature winding (34) wound around the magnetic iron core (33); and a movable body (20) having a field permanent magnet (21) arranged oppositely to the magnetic iron core (33) through a magnetic gap and a magnetic holder (22) supporting the field permanent magnet (21) and movably arranged on the stator base (31), the magnetic holder (22) is made of a non-magnetic substance, and a magnetic back yoke (39) is arranged on the side opposite to the armature with respect to the field permanent magnet (22) to from a gap between the magnetic back yoke (39) and the field permanent magnet (21) and is fixed to supporters provided on the stator base (31). In accordance with this configuration, there is provided a moving magnet type linear actuator which can reduce the weight of the movable body to improve the accelerating performance and gives no problem about the life of linear guides.
摘要翻译： 在移动磁体型线性致动器（10）中，具有固定在定子基座（31）上的磁铁（33）的电枢（32）和缠绕在磁铁上的电枢绕组（34）的定子（30） 核心（33）; 以及具有通过磁隙与磁铁芯（33）相对配置的励磁永磁体（21）的移动体（20）和支撑励磁永磁体（21）的可动地配置在定子上的磁性保持架 基座（31），磁性保持架（22）由非磁性物质构成，磁性后轭铁（39）相对于励磁永磁体（22）配置在与电枢相反的一侧，从 磁背轭（39）与励磁永磁体（21）之间的间隙固定在设在定子基座（31）上的支架上。 根据该结构，提供一种移动磁体式线性致动器，其可以减小可移动体的重量，以提高加速性能，并且不会引起线性引导件的使用寿命。
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公开(公告)号：US20070096567A1
公开(公告)日：2007-05-03
申请号：US11637245
申请日：2006-12-12
申请人： Yasuhiro Miyamoto , Tatsuhiko Koba
发明人： Yasuhiro Miyamoto , Tatsuhiko Koba
IPC分类号： H02K41/00
摘要： In some embodiments, a moving magnet type linear slider capable of eliminating a magnet suction force caused by a linear motor to minimize the linear guide friction is provided. The field of the linear motor includes magnet track having a horizontally arranged generally U-shaped magnetic yoke and plural pairs of field permanent magnets arranged on inner opposed surfaces of the magnetic yoke with polarities arranged alternately in a longitudinal direction of the magnetic yoke, each pair of the filed permanent magnets being arranged with opposite polarities faced with each other. The armature of the linear motor includes an armature holder mounted on the side portion of the fixed base in a vertically extended manner, and a planar coreless armature holder horizontally held by the armature holder. The stroke direction length Lmg of the magnet track is set to be longer than the stroke direction length La of the armature. Furthermore, a gravity compensation spring for compensating the weight of the movable unit is provided at the bottom portion of the magnet track so as to face the fixed base.
摘要翻译： 在一些实施例中，提供了能够消除由直线电动机引起的磁吸引力以使线性引导摩擦最小化的移动磁体型线性滑块。 直线电动机的领域包括具有水平布置的大致U形磁轭的磁轨和在磁轭的纵向方向交替布置极性的磁轭的内相对表面上布置的多对场永磁体，每对 所设置的永磁体被布置成具有彼此面对的相反极性。 线性电动机的电枢包括以垂直延伸的方式安装在固定基座的侧部上的电枢保持架和由电枢架水平保持的平面无芯电枢架。 磁铁轨迹的行程方向长度L mg mg设定为长于衔铁的行程方向长度L a aα。 此外，用于补偿可动单元的重量的重力补偿弹簧设置在磁铁轨道的底部以面对固定基座。
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公开(公告)号：US07659641B2
公开(公告)日：2010-02-09
申请号：US11637245
申请日：2006-12-12
申请人： Yasuhiro Miyamoto , Tatsuhiko Koba
发明人： Yasuhiro Miyamoto , Tatsuhiko Koba
摘要： In some embodiments, a moving magnet type linear slider capable of eliminating a magnet suction force caused by a linear motor to minimize the linear guide friction is provided. The field of the linear motor includes magnet track having a horizontally arranged generally U-shaped magnetic yoke and plural pairs of field permanent magnets arranged on inner opposed surfaces of the magnetic yoke with polarities arranged alternately in a longitudinal direction of the magnetic yoke, each pair of the filed permanent magnets being arranged with opposite polarities faced with each other. The armature of the linear motor includes an armature holder mounted on the side portion of the fixed base in a vertically extended manner, and a planar coreless armature holder horizontally held by the armature holder. The stroke direction length Lmg of the magnet track is set to be longer than the stroke direction length La of the armature. Furthermore, a gravity compensation spring for compensating the weight of the movable unit is provided at the bottom portion of the magnet track so as to face the fixed base.
摘要翻译： 在一些实施例中，提供了能够消除由直线电动机引起的磁吸引力以使线性引导摩擦最小化的移动磁体型线性滑块。 直线电动机的领域包括具有水平布置的大致U形磁轭的磁轨和在磁轭的纵向方向交替布置极性的磁轭的内相对表面上布置的多对场永磁体，每对 所设置的永磁体被布置成具有彼此面对的相反极性。 线性电动机的电枢包括以垂直延伸的方式安装在固定基座的侧部上的电枢保持架和由电枢架水平保持的平面无芯电枢架。 磁铁轨迹的行程方向长度Lmg被设定为长于衔铁的冲程方向长度La。 此外，用于补偿可动单元的重量的重力补偿弹簧设置在磁铁轨道的底部以面对固定基座。
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公开(公告)号：US20070114854A1
公开(公告)日：2007-05-24
申请号：US10562972
申请日：2004-07-08
IPC分类号： H02K41/00
CPC分类号： H02K41/03
摘要： In a moving magnet type linear actuator (10), a stator (30) having an armature (32) including a magnetic iron core (33) fixed on a stator base (31) and an armature winding (34) wound around the magnetic iron core (33); and a movable body (20) having a field permanent magnet (21) arranged oppositely to the magnetic iron core (33) through a magnetic gap and a magnetic holder (22) supporting the field permanent magnet (21) and movably arranged on the stator base (31), the magnetic holder (22) is made of a non-magnetic substance, and a magnetic back yoke (39) is arranged on the side opposite to the armature with respect to the field permanent magnet (22) to from a gap between the magnetic back yoke (39) and the field permanent magnet (21) and is fixed to supporters provided on the stator base (31). In accordance with this configuration, there is provided a moving magnet type linear actuator which can reduce the weight of the movable body to improve the accelerating performance and gives no problem about the life of linear guides.
摘要翻译： 在移动磁体型线性致动器（10）中，具有固定在定子基座（31）上的磁铁（33）的电枢（32）和缠绕在磁铁上的电枢绕组（34）的定子（30） 核心（33）; 以及具有通过磁隙与磁铁芯（33）相对配置的励磁永磁体（21）的移动体（20）和支撑励磁永磁体（21）的可动地配置在定子上的磁性保持架 基座（31），磁性保持架（22）由非磁性物质构成，磁性后轭铁（39）相对于励磁永磁体（22）配置在与电枢相反的一侧，从 磁背轭（39）与励磁永磁体（21）之间的间隙固定在设在定子基座（31）上的支架上。 根据该结构，提供一种移动磁体式线性致动器，其可以减小可移动体的重量，以提高加速性能，并且不会引起线性引导件的使用寿命。
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公开(公告)号：US5887430A
公开(公告)日：1999-03-30
申请号：US556922
申请日：1996-04-29
申请人： Junji Hirai , Yoshio Aoyama , Yoshiji Hiraga , Hiroyuki Hamamoto , Kenji Hirose , Tatsuhiko Koba , Hideaki Wakao
发明人： Junji Hirai , Yoshio Aoyama , Yoshiji Hiraga , Hiroyuki Hamamoto , Kenji Hirose , Tatsuhiko Koba , Hideaki Wakao
CPC分类号： B25B5/061
摘要： A hydraulic source(20) comprises a hydraulic pump(62) driven by a motor(61), which operates based on the power and control data from a non-contact power feeding apparatus(30); a hydraulic tank(63); a solenoid valve(64); a relief valve(65); a hydraulic pressure gauge(66); a pilot check valve(67) for clamping and a pilot check valve(68) for unlocking that are interposed between the solenoid valve(64) and hydraulic cylinders(41a to 41d); a pressure switch(69) for clamping which is inserted into a piping for connecting the pilot valve(67) and the hydraulic cylinders(41a to 41d); and an pressure switch(70) for unclamping which is inserted into a piping for connecting the pilot check valve(68) and the hydraudic cylinders(41a to 41d). This hydraulic source is combined with a hydraulic machine for applications where jig or jigs move freely to promote automation of machining, assembly and inspection of workpieces on a moving body.
摘要翻译： PCT No.PCT / JP93 / 01255 Sec。 371日期：1996年4月29日 102（e）日期1996年4月29日PCT提交1993年9月6日PCT公布。 出版物WO94 / 28315 PCT 日期1994年12月8日液压源（20）包括由马达（61）驱动的液压泵（62），其基于来自非接触供电装置（30）的功率和控制数据进行操作; 液压箱（63）; 电磁阀（64）; 安全阀（65）; 液压表（66）; 用于夹紧的导向止回阀（67）和用于解锁的导向止回阀（68），其插入在电磁阀（64）和液压缸（41a〜41d）之间; 用于夹紧的压力开关（69）插入到用于连接先导阀（67）和液压缸（41a〜41d）的管道中; 以及用于松开的压力开关（70），其被插入到用于连接导向止回阀（68）和液压缸（41a至41d）的管道中。 该液压源与液压机组合，用于夹具或夹具自由移动的应用，以促进移动体上的工件的加工，组装和检查的自动化。
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