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. 发明专利

JPS6138197A Pressure oil supply device of blade angle control mechanism for hydraulic machine having variable blade 失效
标题翻译：用于具有可变叶片的液压机的叶片角度控制机构的压力油供应装置
公开(公告)号：JPS6138197A
公开(公告)日：1986-02-24
申请号：JP15721384
申请日：1984-07-30
申请人： Ebara Corp
发明人： KONNO DAISUKE , WAKUKAWA TOMOHIRO , ONO TAKASHI , AZUMA TAIZO
IPC分类号： F04D29/18 , F03B3/14 , F04D13/00
CPC分类号： Y02E10/223
摘要： PURPOSE: To reduce the cost of lubrication unit by constructing the pressure oil supply casing for supplying pressure oil to the rotary shaft to be fixed in the rotary direction but to be slidable freely in radial direction.
CONSTITUTION: During when a motor 1 is driven to rotate the rotary shaft 4, said shaft 4 is rotating in static pressure oil supply casing 10 while maintaining a narrow gap. Said casing 10 is formed to be fixed in the rotary direction but slidable freely by the clearance of a knock pin 12 and a hole 13 in radial direction against the foundation 9. Consequently, even upon lateral swing of the rotary shaft 4 due to vibration, the casing 10 to be fitted with said shaft 4 will displace together with the rotary shaft 4. Since the bearing function will never occur even if the gap between the fitting faces is small, there is no possibility of increasing gap due to abrasion of the sliding section thereby the gap can be maintained at the minimum necessary level. Consequently, the circulating amount of working oil is reduced to reduce the cost of the lubrication unit considerably.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过构造用于向旋转轴供给压力油的压力油供给壳体，以在旋转方向上固定而在径向上自由滑动来降低润滑单元的成本。构成：当电动机1被驱动以旋转转轴4时，所述轴4在静压油供给壳体10中旋转同时保持狭窄的间隙。所述壳体10被形成为沿着旋转方向固定，但是通过撞击销12和孔13在径向上相对于基座9的间隙可自由滑动。因此，即使由于振动而导致旋转轴4的横摆动作，装配有轴4的壳体10将与旋转轴4一起移动。由于即使配合面之间的间隙较小，也不会发生轴承功能，所以不会由于滑动磨损而增大间隙从而间隙可以保持在最低必要水平。因此，减少了工作油的循环量，大大降低了润滑单元的成本。

2. 发明专利

JPS63318306A MOUNTING STRUCTURE TO SHAFT OF BRITTLE MATERIAL SLEEVE FOR BEARING 失效
公开(公告)号：JPS63318306A
公开(公告)日：1988-12-27
申请号：JP15021087
申请日：1987-06-18
申请人： EBARA CORP
发明人： AIYOSHIZAWA SHIYUNICHI , TAKAGI KIYOKAZU , WAKUKAWA TOMOHIRO
IPC分类号： F16B3/00

3. 发明专利

JPS6185600A Movable blade control equipment of fluid machinery 失效
标题翻译：流体机械可动叶片控制装置
公开(公告)号：JPS6185600A
公开(公告)日：1986-05-01
申请号：JP20688084
申请日：1984-10-02
申请人： Ebara Corp
发明人： INOUE TAKAFUMI , WAKUKAWA TOMOHIRO
IPC分类号： F04D29/18 , F03B3/14
CPC分类号： Y02E10/223
摘要： PURPOSE: To enable a turbo-pump to continue operation even when the oil pressure for controlling a blade angle becomes zero by locking an operation shaft for controlling the blade angle and a main shaft in order to make the transfer of a shaft orientation at the time of the zero oil pressure impossible.
CONSTITUTION: When the oil pressure for controlling a blade angle becomes zero for some reason during the operating of a turbo-pump, pilot pressure is lowered, and a back pressure check valve moves so that oil channels to blade angle control cylinder chambers 12, 13 are connected to a drain through return pipes. Accordingly, a locking piston 42, which has moved downward by deforming a bellville spring 52 through pressure applied on a pressure chamber 61 of the blade angle locking equipment, goes up owing to restoring power of the belleville spring 52 and fixes a distance ring 38 and the operation shaft 14 for the control of the blade angle by pressing a crankpin sleeve 44. As a result, the above-stated operation shaft and the main shaft 4 are fixed in the shaft orientation, and the blade angle is maintained in that state. Therefore, the operation of the pump can be continued.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：即使当通过锁定用于控制叶片角度的操作轴和主轴来控制叶片角度的油压变为零时，也可以使涡轮泵继续运转，以便在此时转动轴方向的零油压不可能。构成：当在涡轮泵的操作期间由于某些原因控制叶片角度的油压变为零时，先导压力降低，并且背压止回阀移动，使得油通道到叶片角度控制气缸室12,13 通过回流管连接到排水管。因此，通过使施加在叶片角度锁定装置的压力室61上的压力使钟形弹簧52变形而向下移动的锁定活塞42由于贝尔维尔弹簧52的恢复力而上升，并且固定距离环38和操作轴14，用于通过按压曲柄销套筒44来控制叶片角度。结果，上述操作轴和主轴4以轴定向固定，并且叶片角度保持在该状态。因此，泵的运行可以继续。

4. 发明专利

JPH028513A SLIDING BEARING 失效
公开(公告)号：JPH028513A
公开(公告)日：1990-01-12
申请号：JP3966088
申请日：1988-02-24
申请人： EBARA CORP
发明人： KONNO DAISUKE , TAKAGI KIYOKAZU , WAKUKAWA TOMOHIRO , AIYOSHIZAWA SHIYUNICHI
IPC分类号： F16C17/02 , F16C27/02
摘要： PURPOSE:To eliminate an excessive amount of space sufficiently absorbing external force and vibration by providing a cushion member, consisting of elastic material, between a bearing case and a bearing side sliding member further containing it in a recessed part formed in this cushion member. CONSTITUTION:A sleeve 24 made of hard brittle material is fitted to a shaft 22. A cushion member 28 is provided between a bearing case 34 and a bearing side sliding member 26. The cushion member 28, having in its internal peripheral surface a recessed part 30, coats the bearing side sliding member 26 in its both end parts in the axial direction in this recessed part 30. The bearing side sliding member 26 is fixed in radial and axial directions by the cushion member 28. Thus, external force and vibration can be sufficiently absorbed to a bearing.

5. 发明专利

JPH01312222A SLIDING BEARING 失效
公开(公告)号：JPH01312222A
公开(公告)日：1989-12-18
申请号：JP9882789
申请日：1989-04-20
申请人： EBARA CORP
发明人： KONNO DAISUKE , TAKAGI KIYOKAZU , WAKUKAWA TOMOHIRO , AIYOSHIZAWA SHIYUNICHI
IPC分类号： F16C27/06 , F16F15/04
摘要： PURPOSE:To obtain a compact sliding bearing which can absorb and attenuate sufficiently external force and oscillations to be exerted by adopting hard fragile material as a sliding member of a sliding bearing, arranging a buffer member between a bearing case and a bearing side sliding member, and forming through- holes on a buffer member piercing axially thereof. CONSTITUTION:A sleeve 24 made of a hard fragile material such as ceramic or superhard alloy is fitted as a shaft side sliding member to a shaft 22 of a sliding bearing 20. The sleeve 24 is arranged mutually slidably with a bearing side sliding member made of the hard fragile material such as ceramic or superhard alloy, that is, a bearing 26. The bearing 26 is press-fitted to a recessed part 30 of a buffer member 28 made of vulcanized rubber. A plurality of axial through-holes 32 are formed on the buffer member 28 circumferentially and with equal intervals. External force and oscillations to be exerted are therefore sufficiently absorbed and attenuated by the buffer member, and the deformation rate is increased, so that the whole of the sliding bearing can be miniaturized.

6. 发明专利

JPS63170598A IMPELLER SLIDE DEVICE OF VERTICAL PUMP 失效
公开(公告)号：JPS63170598A
公开(公告)日：1988-07-14
申请号：JP31564486
申请日：1986-12-29
申请人： EBARA CORP
发明人： TAKAGI KIYOKAZU , KONNO DAISUKE , WAKUKAWA TOMOHIRO , AIYOSHIZAWA SHIYUNICHI
IPC分类号： F04D29/22 , F04D29/04 , F04D29/046 , F04D29/66
摘要： PURPOSE:To suppress vibration of a shaft by assembling an impeller slide part in such a manner that the rotor is previously located eccentrically to the liner ring, and by making the gap of the impeller slide part uneven. CONSTITUTION:Gap between a liner ring 8 and a wear ring 209 shall be uneven, wherein the latter is installed at the rear of the rear face shroud 16a of an impeller 16. The lefthand gap CR1 is given a greater value than the righthand gap CL1 by arranging the pump shaft 4 eccentrical to liner rings 8, 9. Thus the direction of the load on a rotor is made always constant by the pressure difference generated at the impeller slide part, and thereby shaft vibration can be suppressed.

7. 发明专利

JPS6238877A SHAFT-SEAL APPARATUS FOR HYDRAULIC MACHINERY USING MAGNETIC FLUID 失效
公开(公告)号：JPS6238877A
公开(公告)日：1987-02-19
申请号：JP17757285
申请日：1985-08-14
申请人： EBARA CORP
发明人： KONNO DAISUKE , WAKUKAWA TOMOHIRO
IPC分类号： F03B11/06 , F03B11/00
摘要： PURPOSE:To obtain the optimum clearance value smaller than that in the conventional by positioning a driving shaft and a shaft-seal apparatus in the radial direction by the spherical bearings and absorbing the deflection of the driving shaft by a flexible member. CONSTITUTION:In a shaft-seal apparatus, yokes 13a and 13b and spherical bearings 14a and 14b which are vertically set, holding a permanent magnet 12 therebetween, are inserted into the casing 16 of the shaft-seal apparatus separately formed from a pump casing 18. Projections 13a' and 13b' are formed inwardly in the radial direction opposed to the sleeve 15 for the yokes 13a and 13b. The casing 16 consists of a body 16a and a flange part 16b, and a ring plate 17 made of flexible member is attached in sandwich form between the body 16a and the flange part 16b. Therefore, the clearance between the projections 13a', 13b' and the sleeve 15 is positioned by the spherical bearings 14a and 14b, and is not varied by the deflection of a driving shaft 22.

8. 发明专利

JPS61189368A SHAFT SEALING DEVICE FOR HYDRAULIC MACHINE EMPLOYING MAGNETIC FLUID 失效
公开(公告)号：JPS61189368A
公开(公告)日：1986-08-23
申请号：JP2455085
申请日：1985-02-13
申请人： EBARA CORP
发明人： WAKUKAWA TOMOHIRO
IPC分类号： F04D29/04 , F04D29/10 , F16J15/40 , F16J15/43
摘要： PURPOSE:To enable prevention of worsening of sealing performance of a pump, by a method wherein an air chamber is formed between a magnetic fluid seal and a bearing to prevent pumped-up liquid from making contact with the magnetic fluid seal. CONSTITUTION:Magnetic fluid 30 is fed between a sleeve 28, mounted to a driving shaft 20 of a pump, and a yoke 25 located adjacent to a permanent magnet 26 attached to the casing 21 side to form a magnetic seal. On the other hand, since an air chamber 22 is formed between the magnetic seal and a bearing 23, which pumped-up liquid enters, the pumped-up liquid can be prevented from making contact with the magnetic seal, and this enables seal performance of the magnetic seal to be maintained for a long time.

9. 发明专利

JPS6172897A Vane angle control device for hydraulic machinery with movable vanes 失效
标题翻译：具有可移动横梁的液压机械的角度控制装置
公开(公告)号：JPS6172897A
公开(公告)日：1986-04-14
申请号：JP19353484
申请日：1984-09-14
申请人： Ebara Corp
发明人： KONNO DAISUKE , AZUMA TAIZO , ONO TAKASHI , WAKUKAWA TOMOHIRO
IPC分类号： F04D29/18 , F03B3/14
CPC分类号： Y02E10/223
摘要： PURPOSE: To enhance the durability, while eliminating the relative rotation in the steady-state operation, by controlling the vane angle so that the relative rotation of a piece to a turning shaft caused by setting the number of revolutions of an electric motor so as not to synchronize with revolutions of the turning shaft is transformed to the axial movement of a sliding ring.
CONSTITUTION: When the vane angle is to be changed, the number of revolutions of an electric motor comprised of a rotor 12 and stator 13 is set to such a revolution as not to synchronize with that of a turning shaft 1. Hence, relative rotation is caused between the turning shaft 1 and a piece 8 which is fitted on the turning shaft 1 via a ball bearing 9 in such a way that the axial movement is impossible and the relative rotation to the turning shaft 1 is possible, and the relative rotation of the piece 8 to the turning shaft 1 is transformed to the axial movement of a sliding ring 7 by screw engagement of a male screw 7S on the outer periphery of the sliding ring 7 rotating integrally with the turning shaft 1 with a female screw 8S on the inner periphery of the piece 8, and this is transmitted to an operating shaft 2 for vane angle control to change the vane angle and then a detecting rod 24 transmits the vane angle to a position detector 25. Thus, in the steady-state operation, relative movement is not caused in the vane angle control device, and the durability is enhanced.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了提高耐久性，通过控制叶片角度，消除了稳态运转中的相对旋转，使得通过将电动机的转数设定为不产生一件件到转轴的相对转动与转动轴的转动同步转换为滑环的轴向运动。构成：当要改变叶片角度时，将由转子12和定子13组成的电动机的转数设定为与转动轴1不同步的转速。因此，相对旋转为在转动轴1和通过滚珠轴承9装配在转动轴1上的零件8之间产生的轴向移动是不可能的，并且与转动轴1的相对旋转是可能的，并且相对旋转通过与旋转轴1一体旋转的滑动环7的外周上的外螺纹7S与外螺纹7S的螺纹接合，通过内螺纹8S将转动轴1的片8转变为滑动环7的轴向运动片8的内周，将其传递到用于叶片角度控制的操作轴2以改变叶片角度，然后检测杆24将叶片角度传递到位置检测器25.因此，在稳态操作中，相关在叶片角度控制装置中不会引起ve运动，并且耐久性提高。

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