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61. 发明专利

JPS64393A VACUUM PUMP DEVICE 失效
公开(公告)号：JPS64393A
公开(公告)日：1989-01-05
申请号：JP15120587
申请日：1987-06-19
申请人： HITACHI LTD
发明人： YONEYAMA MITSUO , MATSUSHITA OSAMI , TAKAGI MICHIYUKI , MASE MASAHIRO , KURITA YOSHIHISA , NAKAMORI KAZUAKI , OSAKABE ICHIRO
IPC分类号： F04D25/02 , F04D19/04
摘要： PURPOSE:To reduce the installation space and obtain ultra-high-vacuum with cleanses by connecting the rotating shaft of a rotor of a turbo-molecular pump with the rotating shaft of a rotor of a turbo roughing vacuum pump through a magnetic coupling. CONSTITUTION:Inside a casing 21 having a suction port 22 on one side thereof and a discharge port 23 on the other side thereof, an axial-flow blade 24, centrifugal blade 25 and vortex blade 26 are provided. The rotating shaft of the rotor 27A of a turbo-molecular pump 30 is connected with the rotating shaft of the rotor 27B of a turbo roughing vacuum pump 31 through a magnetic coupling 35. The rotor 27 is supported with a radial magnetic bearing 32 mounted inside the casing 21 and a thrust magnetic bearing 33. Therefore, it is possible to reduce the installation space and obtain the ultra-high-vacuum with cleanses.

62. 发明专利

JPS61248916A SOLENOID BEARING DEVICE 失效
公开(公告)号：JPS61248916A
公开(公告)日：1986-11-06
申请号：JP8862585
申请日：1985-04-26
申请人： HITACHI LTD
发明人： TAKAGI MICHIYUKI , MATSUSHITA OSAMI , YONEYAMA MITSUO
IPC分类号： F16C32/04
摘要： PURPOSE:To compensate the change of the core permeability based on the size of the control current and perform highly precise position detection by feeding a control current and a high-frequency current in superimposition through the solenoid coil of a solenoid bearing. CONSTITUTION:A solenoid bearing facing an object has a solenoid coil 3 wound on a core 2a, a control current is fed through this solenoid coil 3 in response to the change of displacement signals, thus supporting the object 1 with no contact. On he other hand, a high-frequency signal from a high-frequency oscillator 5 is fed in superimposition with the control current through this solenoid coil 3. Accordingly, the inductance change due to a gap between the object 1 and bearing 2 can be easily grasped by calculating the difference between the inductance change of the solenoid coil caused by the control current and the inductance change detected by the change of the high-frequency current.

63. 发明专利

JPS59164430A Steady rest device for vertical rotor 失效
标题翻译：用于垂直转子的STEADY REST设备
公开(公告)号：JPS59164430A
公开(公告)日：1984-09-17
申请号：JP3452783
申请日：1983-03-04
申请人： Hitachi Ltd
发明人： BETSUPU TADASHI , NAKAMORI KAZUAKI , MATSUSHITA OSAMI
IPC分类号： F16C17/20 , F16F15/02 , F16F15/03
CPC分类号： F16F15/03
摘要： PURPOSE:To make normal rotation maintainable without producing the resonance of a rotor body even in case of the occurrence of abnormal vibration such as an earthquake or the like, by attaching a steady rest to a cylinder being concentric with a vertical rotor so as to cause it to come close to both outer and inner circumferences of the vertical rotor. CONSTITUTION:An inner circumferential steady rest 8 and an outer circumferential steady rest 9 are installed in a cylinder 10 being concentric with a rotor body 1. In time of the occurrence of abnormal vibration and so on, as for a clearance between these steady rests and the rotor body 1, a resonant mode of the rotor body 1 comes into the state that magnification of the backward resonance is larger than that of forward one whereby the clearance is set down to delta1
摘要翻译：目的：即使在发生诸如地震等的异常振动的情况下，也可以通过将稳定的安放在与垂直转子同心的圆筒上而使转子体的共振不会产生正常的旋转，从而使它接近垂直转子的外周和内周。构成：内周稳定器8和外周稳定器9安装在与转子本体1同心的气缸10中。在发生异常振动等的时候，对于这些稳定支架和转子体1，转子体1的共振模式进入反向共振的放大率大于前向共振的放大倍数，由此间隙设定为Δ1

64. 发明专利

JPS59154364A Detector for variance of rotation 失效
标题翻译：用于旋转变化的检测器
公开(公告)号：JPS59154364A
公开(公告)日：1984-09-03
申请号：JP2752883
申请日：1983-02-23
申请人： Hitachi Ltd
发明人： IDA DOUSHIYUU , TANAKA NAOYUKI , MATSUSHITA OSAMI , YONEYAMA MITSUHO
IPC分类号： G01P3/44 , G01P3/481
CPC分类号： G01P3/481
摘要： PURPOSE:To attain good detection result in low - high frequency bands by attaining an angular position and the relation of signal periods in accordance with relations between plural signals and signals, which are different from these plural signals by 1/2 pitch, when a variation is large, that is, when these plural signals are generated from the same position. CONSTITUTION:A detector consists of a signal generating auxiliary part 2 provided on a revolving shaft 1, two signal generating parts 3 provided on the side of a still body, and an operation circuit part 4 which processes attained signals. Signals are attained successively from signal generating parts 3 in accordance with the rotation of the shaft 1. If a large variance consisting of an angular displacement exceeding one pitch occurs, two changes of the direction of the angular speed are generated in one period of the variance, and the same signals appear continuously near this change. Consequently, the phenomenon of this continuous appearance of the same signal conditions the inversion of the direction of the angular speed. The operation circuit part 4 has an angular speed direction discriminating circuit.
摘要翻译：目的：通过根据与多个信号不同的信号与多个信号之间的关系获得角位置和信号周期的关系，获得良好的低频带检测结果，当变化是大的，也就是说，当从同一位置产生这些多个信号时。构成：检测器由设置在旋转轴1上的信号生成辅助部2，设置在静止体侧的两个信号生成部3和处理所获得的信号的操作电路部4组成。根据轴1的旋转，从信号产生部3连续地获得信号。如果发生由超过一个音调的角位移组成的大的方差，则在一个方差的一个周期内产生角速度方向的两个变化，并且在这个变化附近出现相同的信号。因此，相同信号的这种连续出现的现象使角速度的方向反转。操作电路部分4具有角速度方向鉴别电路。

65. 发明专利

JPS5946394A Turbo molecular pump 失效
标题翻译：涡轮分子泵
公开(公告)号：JPS5946394A
公开(公告)日：1984-03-15
申请号：JP12602883
申请日：1983-07-13
申请人： Hitachi Ltd
发明人： TSUMAKI NOBUO , UEDA SHINJIROU , NODA KOUSUKE , IZUMI HIDEKI , MATSUSHITA OSAMI , OKAWADA TAKESHI
IPC分类号： F16C32/04 , F04D19/04 , F04D29/048 , F04D29/056
CPC分类号： F04D19/048 , F16C2300/62 , F16C2360/45
摘要： PURPOSE:To improve the degree of attained vacuum and obtain clean vacuum at all times including the time when the pump is stopped by a method wherein a bearing at a high-vacuum side is constituted by an attracting type magnetic bearing of a permanent magnet having no change of magnetic characteristics after a high-temperature treatment. CONSTITUTION:The high-vacuum side of a rotor 6 is supported by the attracting force of the permanent magnet 9 while the low-vacuum side thereof is supported by the magnetic bearings 12, 13 so as to be capable of rotating stably. When the rotor 6 is rotated by a motor 16, the molecules of gas in an apparatus to be evacuated are moved from a suction port 1A to a delivery port 3A by the effects of rotor blades 5 and stator blades 4, arranged alternately, transferred with a high compression ratio and discharged out of the delivery port 3A. Titanium alloys or stainless steels are employed for the materials of the knietic blades 5 or the rotor 6 and rare earth elements series magnetic materials, capable of receiving the high-temperature treatment, are employed for the material of permanent magnet 9 thereby enabling to increase the degree of attained vacuum since the baking temperatures thereof may be increased to a high temperature.
摘要翻译：目的：为了提高真空度，包括泵停止时的清洁真空，其中高真空侧的轴承由永磁体的吸引型磁轴承构成，高温处理后的磁特性变化。构成：转子6的高真空侧由永磁体9的吸引力支撑，而低真空侧由磁性轴承12,13支撑，能够稳定地旋转。当转子6由电动机16转动时，要抽真空的装置中的气体分子通过交替排列的转子叶片5和定子叶片4的作用从吸入口1A移动到输送口3A，高压缩比并从排出口3A排出。对于永久磁铁9的材料，采用钛合金或不锈钢作为能够接受高温处理的切削刃5或转子6的材料和稀土元素系列磁性材料，从而能够增加由于其烘烤温度可达到达到真空度的程度可以提高到高温。

66. 发明专利

JPS58175249A ROTARY ANODE X-RAY TUBE 失效
公开(公告)号：JPS58175249A
公开(公告)日：1983-10-14
申请号：JP5650782
申请日：1982-04-07
申请人： HITACHI LTD , HITACHI MEDICAL CORP
发明人： TORII TAKUJI , MATSUSHITA OSAMI , ARAI KATSUTOSHI , KOTABE MUNETOMO , MORI TAKEHIKO , MURAKI MASATO
IPC分类号： H01J35/10
摘要： PURPOSE:To decrease the temperature inside of a glass bulb neck part, aiming at an increase and elongation of the capacity and service life of an X-ray tube respectively by forming a thermal shield part on the part facing said anode target of a rotor. CONSTITUTION:A part of a thermal shield part 5 facing the anode target 2 of a rotor 3a is made of a larger diameter than the other part and said diameter is selected to be larger than the diameter of a glass bulb neck part 4a while being equal to the diameter of the anode target 2 or somewhat smaller. And the surface facing the anode target 2 is given luster surface treatment, thus having a radiation rate not more than 0.2. In this way, by providing the thermal shield plate, the quantity of radiation heat transfer becomes one nineth, the temperature inside of the neck part of the glass bulb can be decreased, falling away of gas molecules from the glass bulb inner surface and sticking thereto can be checked thus to be effective in preventing the degree of vacuum inside of the glass bulb from deterioration, namely, in the long service life of X-rays.

67. 发明专利

JPS56147943A BALANCING METHOD FOR ELASTIC ROTOR 失效
公开(公告)号：JPS56147943A
公开(公告)日：1981-11-17
申请号：JP5039380
申请日：1980-04-18
申请人： HITACHI LTD
发明人： MATSUSHITA OSAMI , TAKAGI YUKIJI
IPC分类号： F16F15/32 , F16F15/36 , G01M1/22
摘要： PURPOSE:To obtain a properly balanced state constantly in an elastic rotor to be driven nearly in or over a critical speed by analyzing vibration values at respective points on the basis of fixed deformation modes for providing balancing weights in accordance with these results. CONSTITUTION:When a rotor 11 is supported by three bearings 12, each bearing 12 is provided with a vibration displacement gauge 13 beside. Meanwhile, another vibration displacement gauge 13' is equipped near the belly of a sympathetic vibration mode not beside the bearing 12, and a tacho-pulse pickup 14 is provided on the shaft end. When the vibration mode is selected as phi in case bearing parts of the rotor 11 are supported by pins and deformation modes are selected as delta1-delta3 in case bearings 12 are opened respectively at one spot and given forced displacements there by certain amounts, vibrations at the rotation of the rotor 11 are analyzed by an analyzer 16 on the basis of these modes. Balancing weights 17 are provided on a modifying face to reduce vibrations of these components individually for obtaining a properly balanced state.

68. 发明专利

JPS5672316A RUBBING POSITION IDENTIFIER 失效
公开(公告)号：JPS5672316A
公开(公告)日：1981-06-16
申请号：JP14769279
申请日：1979-11-16
申请人： HITACHI LTD
发明人： MATSUSHITA OSAMI , SATOU MOTOHIRO , HIOKI SUSUMU , KIKUCHI KATSUAKI , IDEUMI SHIGERU
IPC分类号： G01M13/02 , F01D21/04 , G01H17/00 , G01M13/00 , G01M99/00 , G01N29/14 , G01S5/22
摘要： PURPOSE:To enable to discriminate the rubbing position from the peak of a position identifying signal and the phase of revolving pulses immediately, by corresponding the pulse interval of a rotating pulse signal to the distance between rotor shaft lengths or audio sensors. CONSTITUTION:To detect the audio signal in rubbing a rotor 7 with a standstill body 8, audio sensors 9, 10 and an electromagnetic pickup 12 are provided respectively across the body 8 and at a projection 11 to obtain the rotating pulse signal. The distance between the sensors 9, 10 is corresponded to one interval of the rotating pulse signal. The detected signal is input to a time difference measuring device 13 to measure the difference of arrival time when a peak of the audio signal is recognized. Next, a divider 14 converts the difference of arrival time into the rubbing position.

69. 发明专利

JPS54162585A EVALUATING METHOD OF ABNORMALITY OCCURRING POSITIONS OF REVOLVING MACHINES BY ACOUSTIC SIGNALS 失效
公开(公告)号：JPS54162585A
公开(公告)日：1979-12-24
申请号：JP7090678
申请日：1978-06-14
申请人： HITACHI LTD
发明人： SATOU MOTOHIRO , MATSUSHITA OSAMI , FURUDONO MASUO , HIOKI SUSUMU , KIKUCHI KATSUAKI
IPC分类号： G01H17/00 , G01H1/00 , G01M99/00 , G01N29/04
摘要： PURPOSE:To evalulate the abnormality-occurring range of a rotator by making an acoustic histogram by the acoustic signal from a suitable acoustic sensor out of acoustic sensors and revolution pulse signals. CONSTITUTION:A revolution pulse generator and three or more acoustic sensors 24 thru 27 are installed to a revolving machine. Evaluation of the abnormality-occurring position on the stator 23 side is accomplished from the time differences of the acoustic signals and the time difference between the revolution pulse signal P from the revolution pulse generator and the acoustic signal arrived first out of the acoustic sensors is detected. Time compensation at which time delay becomes minimum for the range that can be covered by one acoustic sensor is accomplished to this time difference, whereby the evaluation of the abnormality-occurring position on the rotator 22 side is performed. Next, an acoustic histogram is made from the acoustic signal from a suitable acoustic sensor out of the acoustic sensors and the revolution pulse signal P. From this histogram, the abnormality-occurring range on the rotator side may be evaluated.

70. 发明专利

JPS5239078A OIL DASH POT 失效
公开(公告)号：JPS5239078A
公开(公告)日：1977-03-26
申请号：JP11368975
申请日：1975-09-22
申请人： HITACHI LTD
发明人： MATSUSHITA OSAMI , IGARASHI NARUMI , FURUDONO MASUO
IPC分类号： H01H33/915 , F16F9/48
摘要： PURPOSE:Proposed is an oil dash pot capable enouth to increase a high-pressure rataining time of a buffer pressure.

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