公开(公告)号：US20040105602A1

公开(公告)日：2004-06-03

申请号：US10382505

申请日：2003-03-07

申请人： NTN CORPORATION

发明人： Masatoshi Mizutani ,  Eiji Tajima ,  Hisashi Ohtsuki ,  Takayuki Norimatsu ,  Koichi Okada ,  Toru Takahashi ,  Hiroaki Ohba ,  Katsuyuki Ikei

IPC分类号： F16C032/00 ,  F16C041/04

CPC分类号： G01P3/443 ,  F16C19/186 ,  F16C33/78 ,  F16C33/7876 ,  F16C33/7886 ,  F16C41/004 ,  F16C41/007 ,  F16C41/008 ,  F16C2326/02 ,  G01P3/487 ,  H02K7/1846

摘要： To provide a rotation detecting device with a function of transmitting a rotational speed detection signal wireless and enable the rotation detecting device to be assembled compact in size without requiring any anti-rusting treatment to a multi-pole magnet assembly and a magnetic ring assembly, the rotation detecting device includes an electric power generator (11) for generating an electric power by a relative rotation between a non-rotatable member (1) and a rotatable member (7). The electric power generator (11) includes a multi-pole magnet assembly (13) and a magnetic ring assembly (12). A wireless transmission device (14) for transmitting the rotational speed detection signal outputted by the electric power generator (11) is employed. A sealing member (18) is also employed for sealing a working space delimited between the non-rotatable member (1) and the rotatable member (7), and the multi-pole magnet assembly (13) and the magnetic ring assembly (12) of the electric power generator (11) confront with each other at a location inwardly of the sealing member (18). The sealing member (18) is mounted on the magnetic ring assembly (12) or the wireless transmission device (14) of an annular configuration.

摘要翻译： 为了提供具有无线传递转速检测信号的功能的旋转检测装置，并且使得旋转检测装置能够组装成紧凑的尺寸，而不需要对多极磁体组件和磁环组件进行任何防锈处理， 旋转检测装置包括用于通过不可旋转构件（1）和可旋转构件（7）之间的相对旋转产生电力的发电机（11）。 发电机（11）包括多极磁体组件（13）和磁环组件（12）。 采用用于发送由发电机（11）输出的转速检测信号的无线发送装置（14）。 密封构件（18）还用于密封限定在不可旋转构件（1）和可旋转构件（7）之间的工作空间，以及多极磁体组件（13）和磁环组件（12） 在所述密封构件（18）的内侧的位置处彼此面对的发电机（11）。 密封构件（18）安装在环形组件（12）或环形构造的无线传输装置（14）上。

公开(公告)号：US20030234578A1

公开(公告)日：2003-12-25

申请号：US10382656

申请日：2003-03-07

申请人： NTN CORPORATION

发明人： Toru Takahashi ,  Koichi Okada ,  Kenichi Iwamoto ,  Hiroaki Ohba

IPC分类号： B60T008/66

CPC分类号： F16C41/008 ,  B60T8/171 ,  B60T8/329 ,  F16C19/186 ,  F16C33/7886 ,  F16C41/004 ,  F16C41/007 ,  F16C2326/02 ,  G01P3/443 ,  Y10T307/74

摘要： To provide a rotation detecting device compact in structure and operable on its own electric power generating function and capable of detecting the number of revolution of a vehicle wheel even at an extremely low speed rotation of the vehicle wheel, and also an anti-skid braking system utilizing such rotation detecting device, the rotation detecting device includes an electric power generator 4, at least one magnetic sensor 23 and an electric power supply circuit 24. The electric power generator 4 in turn includes a stator 17 and a rotor 18 in the form of a multi-pole magnet having a plurality of opposite magnetic poles alternating in a direction circumferentially of the rotor 18. The magnetic sensor 23 is mounted on either the stator 17 or a support member 1 for supporting the stator 17 and is operable to detect the magnetic poles on the rotor 18. The electric power supply circuit 24 is a circuit in which the electric power generated by the electric power generator 4 is utilized as an electric power source of the magnetic sensor 23. The stator 17 is has a wireless transmitting device 5A mounted thereon for transmitting a detection signal from the magnetic sensor 23. Even this wireless transmitting device 5A utilizes the electric power generated by the electric power generator 4 as an electric power source therefor.

摘要翻译： 为了提供结构紧凑的旋转检测装置，并且能够在其自身的发电功能上操作，并且即使在车轮的极低速旋转下也能够检测车轮的转数，并且还具有防滑制动系统 利用这种旋转检测装置，旋转检测装置包括发电机4，至少一个磁传感器23和电力供应电路24.发电机4又包括定子17和转子18 具有多个相反磁极的多极磁铁，其沿着转子18的圆周方向交替。磁传感器23安装在定子17或用于支撑定子17的支撑部件1上，并且可操作以检测磁 电源电路24是由发电机4产生的电力作为电力的电路 定子17具有安装在其上的无线发送装置5A，用于发送来自磁传感器23的检测信号。即使该无线发送装置5A也利用由发电机4产生的电力作为 一种电源。

公开(公告)号：US20020130655A1

公开(公告)日：2002-09-19

申请号：US10091579

申请日：2002-03-07

申请人： NTN CORPORATION

发明人： Koichi Okada ,  Hisashi Ohtsuki ,  Akira Torii ,  Takayuki Norimatsu ,  Hiroaki Ohba ,  Toru Takahashi ,  Masatoshi Mizutani

IPC分类号： G01P003/48 ,  G01P003/54

CPC分类号： F16C41/008 ,  B60T8/171 ,  B60T8/329 ,  F16C19/184 ,  F16C33/7879 ,  F16C33/7886 ,  F16C33/7896 ,  F16C41/004 ,  F16C41/007 ,  F16C2326/02 ,  G01P3/443

摘要： A wheel support bearing assembly for rotatably supporting a wheel 13 relative to a vehicle body structure 12 includes outer and inner members 1 and 2 with dual rows of rolling elements 3 interposed therebetween. An electric generator 4 for generating an electric power as one of the inner and outer members 1 and 2 rotates relative to the other of the inner and outer members 1 and 2 is utilized. The electric generator 4 includes a coil/magnetic element combination 17, including a ring member accommodating a coil therein, and a multi-pole magnet 18. A signal outputted from the electric generator 4 and indicative of the number of revolutions of the wheel 13 is transmitted wireless by a transmitter 5. This transmitter 5 may be an annular transmitter.

摘要翻译： 用于相对于车身结构12可旋转地支撑车轮13的车轮支撑轴承组件包括外部和内部构件1和2，其中插入有两排滚动元件3。 使用用于产生作为内部构件1和外部构件2之一的电力的发电机4相对于内部构件1和外部构件2中的另一个旋转。 发电机4包括线圈/磁性元件组合17，其包括容纳线圈的环形构件和多极磁体18.从发电机4输出并指示车轮13的转数的信号是 由发射机5发送无线。该发射机5可以是环形发射机。

公开(公告)号：US20020030482A1

公开(公告)日：2002-03-14

申请号：US09911737

申请日：2001-07-25

申请人： NTN Corporation

发明人： Kenichi Iwamoto ,  Toru Takahashi ,  Koichi Okada ,  Takashi Koike ,  Yoshitaka Nagano ,  Motoharu Niki ,  Kazuyuki Inokuchi

IPC分类号： G01P003/48

CPC分类号： G01P3/443 ,  F16C19/06 ,  F16C41/007

摘要： A bearing provided with a rotation sensor comprises an outer ring, an inner ring and rolling elements, and a magnetic ring is engaged with the inner diametral surface of the outer ring. Thus, a highly reliable bearing provided with a rotation sensor exerting no bad influence on a magnetic sensor can be provided.

摘要翻译： 设置有旋转传感器的轴承包括外圈，内圈和滚动元件，并且磁环与外圈的内径表面接合。 因此，可以提供设置有对磁传感器没有不良影响的旋转传感器的高度可靠的轴承。

公开(公告)号：US20030173956A1

公开(公告)日：2003-09-18

申请号：US10387563

申请日：2003-03-14

申请人： NTN CORPORATION

发明人： Yoshio Fujikawa ,  Toru Takahashi ,  Yoshitaka Nagano ,  Takashi Koike ,  Kenichi Iwamoto

IPC分类号： G01B007/30 ,  G01P003/48

CPC分类号： G01D5/145 ,  F16C19/06 ,  F16C41/007 ,  G01D5/2457 ,  G01P3/443

摘要： To provide a compact bearing assembly equipped with a rotation sensor capable of detecting not only pulse signals for detecting the number of revolution, but also a home position signal, the bearing assembly equipped with the rotation sensor includes a rotatable member (2) and a non-rotatable member (3) with rolling elements (4) interposed between the rotatable and non-rotatable members (2) and (3) to permit the rotatable member (2) to be rotatable relative to the non-rotatable member (3). The rotatable member (2) is provided with a magnetic encoder (7) and the non-rotatable member (3) is provided with magnetic sensors (8A) to (8C). The magnetic encoder (7) includes first and second to-be-detected elements (7A) and (7B) each having a plurality of equally spaced, opposite magnetic poles defined therein so as to alternate with each other in a direction circumferentially thereof. The first to-be-detected element also has a magnetic characteristic disturbing element (15) provided at a predetermined site on a circumference of the magnetic encoder (7) for agitating a periodicity of the opposite magnetic poles. The two magnetic sensors (8A) and (8B) for detecting the first to-be-detected element (7A) are spaced in a circumferential direction a distance greater than a circumferentially extending width of the disturbing element (15), and are so positioned as to be held in substantially phase-matched relation with a cycle of repetition of the opposite magnetic poles.

摘要翻译： 为了提供一种配有旋转传感器的紧凑型轴承组件，其不仅能够检测用于检测转数的脉冲信号，而且还检测原位置信号，装配有旋转传感器的轴承组件包括可旋转构件（2） 可旋转构件（3），其中滚动元件（4）插入在可旋转和不旋转构件（2）和（3）之间，以允许可旋转构件（2）相对于不可转动构件（3）旋转。 可旋转构件（2）设置有磁编码器（7），并且不可旋转构件（3）设置有磁传感器（8A）至（8C）。 磁编码器（7）包括第一和第二待检测元件（7A）和（7B），每个元件具有限定在其中的多个等间隔的相对的磁极，以便沿其圆周方向彼此交替。 第一待检测元件还具有设置在磁性编码器（7）的圆周上的预定位置处的用于搅拌相对磁极的周期性的磁特性干扰元件（15）。 用于检测第一待检测元件（7A）的两个磁传感器（8A）和（8B）在圆周方向上间隔大于扰动元件（15）的周向延伸宽度的距离，并且被定位 以与相对磁极重复的周期基本上相位匹配的关系。