专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5256952A Magnetic bearing control method and apparatus 失效
标题翻译：磁轴承控制方法及装置
公开(公告)号：US5256952A
公开(公告)日：1993-10-26
申请号：US889997
申请日：1992-05-29
申请人： Mitsuho Yoneyama , Osami Matsushita , Naohiko Takahashi , Yasuo Fukushima
发明人： Mitsuho Yoneyama , Osami Matsushita , Naohiko Takahashi , Yasuo Fukushima
IPC分类号： F16C32/04 , F16C39/06 , F16F15/18 , G05B5/01 , G05B21/02 , H02K7/09
CPC分类号： F16F15/18 , F16C32/0451 , G05B21/02 , G05B5/01
摘要： A control method and apparatus for suppressing the vibration components of a magnetic bearing. According to this invention, a vibration wave is sampled at pulses synchronized with the rotation of a rotor, the vibration waveform sampled values at each revolution are averaged, and only the frequency components synchronized with the rotation frequency of the rotor are extracted from the vibration waveform. In addition, the extracted components are subjected to Fourier transform, processed in a frequency region and subjected to Fourier reverse transform. The sequence of these signal processes produces a signal, and the vibration components are suppressed by this signal.
摘要翻译：一种用于抑制磁轴承的振动分量的控制方法和装置。根据本发明，以与转子旋转同步的脉冲对振动波进行采样，将每一转的振动波形采样值平均化，并且只有与转子旋转频率同步的频率分量从振动波形中提取出来。另外，将所提取的分量进行傅里叶变换，在频域进行处理，进行傅立叶逆变换。这些信号处理的顺序产生信号，并且该信号抑制振动分量。

2. 发明授权

US5486729A Method and apparatus for controlling a magnetic bearing 失效
标题翻译：用于控制磁性轴承的方法和装置
公开(公告)号：US5486729A
公开(公告)日：1996-01-23
申请号：US26760
申请日：1993-03-05
申请人： Osami Matsushita , Mitsuho Yoneyama , Naohiko Takahashi , Yasuo Fukushima , Minoru Hiroshima , Tadashi Kaneki , Yoshiaki Abe , Naofumi Sakanashi
发明人： Osami Matsushita , Mitsuho Yoneyama , Naohiko Takahashi , Yasuo Fukushima , Minoru Hiroshima , Tadashi Kaneki , Yoshiaki Abe , Naofumi Sakanashi
IPC分类号： F16C39/06 , H02K7/09
CPC分类号： F16C32/0453 , F16C32/048
摘要： A controller of magnetic bearing controls the rotor speed with a reduced drive current while suppressing the rotor vibration. The controller implements the ABS control, N-cross control, N-straight control and FF control in proper combination in addition to the basic PID control. A computer in the controller determines the activation of each control in accordance with a predetermined table of control plan in response to the detected rotor speed.
摘要翻译：磁轴承的控制器通过减小驱动电流来控制转子转速，同时抑制转子振动。控制器除了基本的PID控制外，还可以适当组合实现ABS控制，N交叉控制，N直线控制和FF控制。控制器中的计算机响应于检测到的转子速度，根据预定的控制计划表确定每个控制器的激活。

3. 发明授权

US5408875A Balancing method for flexible rotor and a balancer applicable to the balancing method 失效
标题翻译：用于平衡方法的柔性转子和平衡器的平衡方法
公开(公告)号：US5408875A
公开(公告)日：1995-04-25
申请号：US885980
申请日：1992-05-20
申请人： Osami Matsushita , Naohiko Takahashi , Mitsuho Yoneyama , Yasuo Fukushima , Minoru Hiroshima , Naohumi Sakanashi , Teturo Ohashi
发明人： Osami Matsushita , Naohiko Takahashi , Mitsuho Yoneyama , Yasuo Fukushima , Minoru Hiroshima , Naohumi Sakanashi , Teturo Ohashi
IPC分类号： F16F15/32 , F16C32/04 , F16F15/36 , G01M1/20 , G01M1/30 , G01M1/24
CPC分类号： G01M1/20
摘要： A balancing method for balancing a flexible rotor is disclosed. First, the rotor is rotated and vibration of the rotor is measured to determine resonance speeds. Vibration exciting forces of frequencies synchronized with the rotor rotation in two orthogonal directions are imparted to the rotor or rotor support bearings while rotating the rotor at a speed near the respective resonance speeds. The amplitude and the phase of the vibration exciting force which reduces the resonance vibration of the rotor are then determined. A correction weight on the basis of the amplitude and the phase of the vibration exciting force is then determined. Balancing work on the rotor such as grinding of the rotor or addition of a mass to the rotor in accordance with the correction weight is then carried out, followed by a rotor rotation conducted for the purpose of confirming the effect of the balancing work.
摘要翻译：公开了一种用于平衡柔性转子的平衡方法。首先，旋转转子并测量转子的振动以确定共振速度。在转子或转子支承轴承同时转动与两个正交方向的转子同步的频率的振动激励力同时以接近各个谐振速度的转速旋转转子。然后确定减小转子的共振振动的振动激励力的振幅和相位。然后确定基于振动激励力的振幅和相位的校正重量。然后进行转子的平衡工作，例如转子的研磨或根据校正重量向转子添加质量，然后进行转子旋转，以确认平衡作用的效果。

4. 发明授权

US5491396A Magnetic bearing apparatus and rotating machine having such an apparatus 失效
标题翻译：具有这种装置的磁性轴承装置和旋转机械
公开(公告)号：US5491396A
公开(公告)日：1996-02-13
申请号：US243904
申请日：1994-05-17
申请人： Naohiko Takahashi , Minoru Hiroshima , Osami Matsushita , Yasuo Fukushima
发明人： Naohiko Takahashi , Minoru Hiroshima , Osami Matsushita , Yasuo Fukushima
IPC分类号： F04D29/056 , F04D29/058 , F16C32/04 , F16C39/06 , G05D13/00
CPC分类号： F16C32/0451 , F16C32/0446 , F16C2360/44
摘要： A magnetic bearing is provided with a simulating circuit for estimating a displacement of a rotor on the basis of a force which is exerted on the rotor. An output of the simulating circuit is compared with an actual displacement signal. A delay circuit and a subtracter are provided to subtract a run-out, which was estimated one period before the rotation of the rotor, from the displacement signal. A displacement signal from which the run-out component was eliminated is set to a new displacement signal. A signal which is obtained by adding an estimated run-out of one period before, namely, an output of the delay circuit to the run-out which was estimated by comparing the output of the simulating circuit with the new displacement signal is newly inputted to the delay circuit. Due to this, the run-out component is eliminated from the displacement signal of the magnetic bearing, the load on power amplifiers for driving the electromagnets is reduced, there is a surplus for a saturation which is caused in a high frequency band, the reliability of the control system is improved, and deterioration of positional accuracy due to the run-out is prevented.
摘要翻译：磁性轴承设置有用于基于施加在转子上的力来估计转子的位移的模拟电路。模拟电路的输出与实际位移信号进行比较。提供延迟电路和减法器以减去在转子旋转之前的一个周期内的偏移量与位移信号。排除组分的位移信号被设定为新的位移信号。将通过将延迟电路的输出与通过将模拟电路的输出与新的位移信号进行比较而估计的余量相加的估计的输出相加而获得的信号被新输入到延时电路。由此，从磁性轴承的位移信号中消除了失效部件，用于驱动电磁体的功率放大器的负载减小，在高频带中产生的饱和度过剩，可靠性提高了控制系统的性能，防止了由于失控引起的位置精度的劣化。

5. 发明授权

US4841212A Electromagnetic bearing control apparatus 失效
标题翻译：电磁轴承控制装置
公开(公告)号：US4841212A
公开(公告)日：1989-06-20
申请号：US102561
申请日：1987-08-12
申请人： Osami Matsushita , Michiyuki Takagi , Mitsuho Yoneyama , Toyomi Sugaya , Ikuhiro Saito
发明人： Osami Matsushita , Michiyuki Takagi , Mitsuho Yoneyama , Toyomi Sugaya , Ikuhiro Saito
IPC分类号： F16C32/04 , F16C39/06
CPC分类号： F16C32/0453
摘要： In an electromagnetic bearing control apparatus for suppressing vibratory rotational motion of a rotor, a selective extraction unit is provided in servo-circuits which control currents being supplied to electromagnetic coils in accordance with x and y-component signals of radial displacement of the rotor such that the rotor is held in a predetermined radial position, and x and y-component signals delivered out of the selective extraction unit are crossed and inputted to the servo-circuits so as to be added in opposite polarities to processed x and y-component signals of radial displacement.

6. 发明授权

US4697128A Control apparatus for a rotor supported by an electromagnetic bearing 失效
标题翻译：用于由电磁轴承支撑的转子的控制装置
公开(公告)号：US4697128A
公开(公告)日：1987-09-29
申请号：US861002
申请日：1986-05-08
申请人： Osami Matsushita , Michiyuki Takagi , Mitsuho Yoneyama , Toyomi Sugaya
发明人： Osami Matsushita , Michiyuki Takagi , Mitsuho Yoneyama , Toyomi Sugaya
IPC分类号： F16C32/04 , F16C39/06 , G05B1/02
CPC分类号： F16C32/0453 , F16C32/048
摘要： The present invention reduces the resonance amplitude of the rotational frequency-synchronous unbalance vibration of a rotor supported by an electromagnetic bearing.To this end, the invention disposes an X-direction control servo circuit and a Y-direction control servo circuit each of which detects the deviation of the rotor from a desired position in the radial direction thereof and controls the rotor so as to be held at the desired position on the basis of the detection signal, and a tracking filter which is synchronous with the rotational frequency. Outputs from the filter are crossed to supply the Y-direction control servo circuit with the X-directional output and to supply the X-direction control servo circuit with the Y-directional output signal.
摘要翻译：本发明减小了由电磁轴承支撑的转子的旋转频率同步不平衡振动的共振幅度。为此，本发明设置了X方向控制伺服电路和Y方向控制伺服电路，每个X方向控制伺服电路检测转子与其径向方向的期望位置的偏差，并控制转子以保持在基于检测信号的期望位置，以及与旋转频率同步的跟踪滤波器。滤波器的输出交叉，向Y方向控制伺服电路提供X方向输出，并向X方向控制伺服电路提供Y方向输出信号。

7. 发明授权

US4992714A Band pass filter device and a method of filtering using such a device 失效
标题翻译：带通滤波器装置和使用这种装置的滤波方法
公开(公告)号：US4992714A
公开(公告)日：1991-02-12
申请号：US484911
申请日：1990-02-26
申请人： Osami Matsushita , Michiyuki Takagi , Toyomi Yoshida , Naohiko Takahashi , Ikuhiro Saitoh
发明人： Osami Matsushita , Michiyuki Takagi , Toyomi Yoshida , Naohiko Takahashi , Ikuhiro Saitoh
IPC分类号： F16C32/04 , F16C39/06 , G05B11/36 , G05D3/12 , G06F17/10 , H03H17/02
CPC分类号： H03H17/0213 , F16C32/0453
摘要： A band pass filter multiplies an input waveform with first trigonometric functions at a plurality of frequencies and then filters the products. Furthermore, with that filtering step, the products are multiplied, or their phase is changed by a predetermined value, and the results are multiplied by the inverse of the trigonometric functions.The sum of this, for all frequencies, generated a filtered output waveform. Where the input waveform has two components, the corresponding outputs can be obtained from the read and imaginary components of the output waveform. In practice the trigonometric functions are produced by sine and cosine components at each frequency. In this way a band pass filter device is formed which is suitable for use in the control system of an apparatus which must be controlled continuously, such as a control system for a rotor.
摘要翻译：带通滤波器将输入波形与多个频率的第一三角函数相乘，然后对产品进行滤波。此外，通过该滤波步骤，将乘积相乘或将其相位改变预定值，并将结果乘以三角函数的倒数。对于所有频率，其总和产生滤波后的输出波形。在输入波形具有两个分量的情况下，可以从输出波形的读和虚分量获得相应的输出。在实践中，三角函数在每个频率下由正弦和余弦分量产生。以这种方式，形成适用于连续控制的装置的控制系统中的带通滤波器装置，例如用于转子的控制系统。

8. 发明授权

US4685335A Method and apparatus for monitoring cracks of a rotatable body 失效
标题翻译：用于监测可旋转体的裂纹的方法和装置
公开(公告)号：US4685335A
公开(公告)日：1987-08-11
申请号：US681576
申请日：1984-12-14
申请人： Kazuo Sato , Kouki Shiohata , Osami Matsushita , Katsuaki Kikuchi , Masakazu Takasumi , Ichiya Sato , Ryoichi Kaneko
发明人： Kazuo Sato , Kouki Shiohata , Osami Matsushita , Katsuaki Kikuchi , Masakazu Takasumi , Ichiya Sato , Ryoichi Kaneko
IPC分类号： G01M99/00 , G01N29/14 , G01N29/04
CPC分类号： G01N29/4454 , G01N29/14 , G01N2291/0258 , G01N2291/02854 , G01N2291/2693
摘要： A method and apparatus for monitoring cracks of a rotatable body by detecting cracks by measuring accoustic emission signals and evaluating the depth of cracks from the result of the comparison of assumed vibrations of the rotatable body and its measured vibrations. By this method and apparatus not only the beginning of cracking of the rotatable body, but also the progress of cracking on an online basis can be detected and monitored.
摘要翻译：一种用于通过测量声发射信号并通过比较可旋转体的假定振动与其测量的振动的结果来评估裂纹深度来检测裂纹的方法和装置。通过这种方法和设备，不仅可旋转体的开裂开始，而且可以检测和监测在线基础上的开裂进展。

9. 发明授权

US4557679A Rotary fluid machine with thrust bearing mounting unit 失效
标题翻译：旋转流体机械带推力轴承安装单元
公开(公告)号：US4557679A
公开(公告)日：1985-12-10
申请号：US676922
申请日：1984-11-30
申请人： Hidetomo Mori , Osami Matsushita , Katsumi Matsubara , Michiaki Ida , Shigeru Sasaki
发明人： Hidetomo Mori , Osami Matsushita , Katsumi Matsubara , Michiaki Ida , Shigeru Sasaki
IPC分类号： F16C35/077 , F01C21/02 , F04C29/00 , F04D29/056 , F04D29/059 , F16C27/00 , F16C27/04 , F04C18/24
CPC分类号： F01C21/02 , F16C27/00 , F16C27/04
摘要： A rotary fluid machine such as, for example, a screw compressor, a centrifugal compressor, or a pump, is provided with a thrust bearing mounting unit adapted to maintain natural frequencies of bending vibrations of rotors thereof within ranges of permissible values. The axial rigidity of the mounting unit is at least as high as that of the thrust bearings and the radial rigidity thereof is made to be not more than half that thereof. When a radial load is applied to the thrust bearings, the bearing mounting unit is deformed solely substantially in the radial direction and the thrust bearings bear substantially no radial load.
摘要翻译：诸如螺旋压缩机，离心式压缩机或泵的旋转流体机械设置有推力轴承安装单元，其适于将其转子的弯曲振动的固有频率保持在允许值的范围内。安装单元的轴向刚度至少与推力轴承一样高，其径向刚度不大于其一半。当向推力轴承施加径向载荷时，轴承安装单元仅基本上在径向方向上变形，并且推力轴承基本上不承受径向载荷。

10. 发明授权

US5051852A Mechanism for balancing a rotary magnetic head apparatus 失效
标题翻译：平衡旋转磁头装置的机构
公开(公告)号：US5051852A
公开(公告)日：1991-09-24
申请号：US343749
申请日：1989-04-27
申请人： Takashi Kohno , Osami Matsushita , Takao Terayama , Mashanori Kohchi , Hideo Tomizawa , Kouji Satoh , Hiroyuki Ono
发明人： Takashi Kohno , Osami Matsushita , Takao Terayama , Mashanori Kohchi , Hideo Tomizawa , Kouji Satoh , Hiroyuki Ono
IPC分类号： G11B5/52 , G11B5/53 , G11B15/61 , G11B33/08
CPC分类号： G11B15/61 , G11B33/08 , G11B5/53
摘要： A rotary magnetic head apparatus for use in a VTR and producing a low level of vibration by restraining the unbalance of an overall rotary body of the magnetic head apparatus. The apparatus includes a fixed cylinder for supporting a rotary shaft via bearings, a rotary cylinder secured to one end of the rotary shaft and having magnetic heads, and a motor rotor directly coupled with the other end of the rotary shaft. At least one first balancer and at least one second balancer are respectively provided in the rotary cylinder and the rotor so as to compensate for the unbalance of the rotary body composed of the rotary cylinder, the rotary shaft, and the rotor.
摘要翻译：一种用于VTR的旋转磁头装置，通过抑制磁头装置的整个旋转体的不平衡而产生低水平的振动。该装置包括用于通过轴承支撑旋转轴的固定气缸，固定到旋转轴的一端并具有磁头的旋转圆筒，以及与旋转轴的另一端直接连接的马达转子。至少一个第一平衡器和至少一个第二平衡器分别设置在旋转圆筒和转子中，以补偿由旋转圆筒，旋转轴和转子组成的旋转体的不平衡。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式