CN103147999A - Axial force measuring device and method for multistage direct-connection centrifugal pump - Google Patents
Axial force measuring device and method for multistage direct-connection centrifugal pump Download PDFInfo
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- CN103147999A CN103147999A CN201310067993XA CN201310067993A CN103147999A CN 103147999 A CN103147999 A CN 103147999A CN 201310067993X A CN201310067993X A CN 201310067993XA CN 201310067993 A CN201310067993 A CN 201310067993A CN 103147999 A CN103147999 A CN 103147999A
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Abstract
The invention discloses an axial force measuring device and an axial force measuring method for a multistage direct-connection centrifugal pump. The axial force measuring device comprises a force measuring device arranged on a motor, wherein the force measuring device comprises a bracket, a measuring device and a force conducting device; the force conducting device is connected with a motor shaft; a first bearing is arranged between the force conducting device and the motor shaft; the first bearing is used for transmitting the axial force of the motor shaft to the forced conducting device; the measuring device is connected with the force conducting device and used for measuring the axial force of the force conducting device; the bracket is arranged on a shell of the motor; and the measuring device and the force conducting device are arranged in the bracket. The axial force measuring device has the benefits as follows: the axial force measuring device is directly transformed on the basis of the motor structure of the multistage direct-connection centrifugal pump, so the actual value of the axial force can be measured accurately, additional space is not occupied, the using components are obtained by the transformed motor, the cost is saved effectively, the effect is good, the structure is simple, the service life is long, and high practicability is achieved.
Description
Technical field
The present invention relates to a kind of measuring device, be specifically related to a kind of axial force measuring device for multistage direct connected centrifugal pump and method.
Background technique
The main cause that the axial force of multistage direct connected centrifugal pump produces is as follows: the different pressure that produce of 1, the power of the asymmetric generation of impeller front and rear cover plate pressure, and compression area; 2, flow direction changes the dynamical reaction that produces after impeller because liquid is flowed through; 3, the power of twisted blade working surface and the different generations of backside pressure; 4, due to the power of front and rear cover plate in impeller channel in the different generations of pressure of same radius.
Existing multistage direct connected centrifugal pump progression is many, axial force actual value and theoretical value difference are larger, and axial force is difficult to directly measure, and causes the theoretical bearing of calculating often not accurate enough working life, and bearing life can't be held and will affect greatly whole production when actual production.
Summary of the invention
The object of the present invention is to provide a kind of axial force measuring device for multistage direct connected centrifugal pump and method, by forcemeter is installed above motor, overcome the shortcoming that existing multistage direct connected centrifugal pump middle (center) bearing can't be held working life, thereby realized purpose of the present invention.
Technical problem solved by the invention can realize by the following technical solutions:
A kind of axial force measuring device for multistage direct connected centrifugal pump comprises the forcemeter of being located on motor, and the motor shaft upper/lower terminal of motor is respectively equipped with first, second bearing, wherein:
Forcemeter comprises a support, a measuring device and a power conducting unit, wherein:
The power conducting unit is connected with motor shaft, and clutch shaft bearing is located between this power conducting unit and motor shaft, and this clutch shaft bearing is used for the axial force of motor shaft is reached the power conducting unit;
Measuring device is connected with the power conducting unit, is used for the axial force that the measuring force conducting unit is subject to;
Be set up on the shell of motor, measuring device, power conducting unit all are located in this support.
In a preferred embodiment of the invention, the power conducting unit specifically comprises a bearing support, and this bearing support radially is fixed on support, and clutch shaft bearing is located in this bearing support.
Need to prove especially, the tolerance of the fitting surface of support and bearing support is H7/h6.
Need to prove especially, be provided be used to preventing the relative support of bearing support stop pin in axial sliding between support and bearing support.
In a preferred embodiment of the invention, measuring device is specially an electronics dynamometer, and this electronics dynamometer upper end is connected with support by a bolt, and the lower end is fixedly connected with this power conducting unit by a bolt.
In a preferred embodiment of the invention, clutch shaft bearing adopts deep groove ball bearing, and the second bearing adopts roller bearing.
In a preferred embodiment of the invention, the tolerance of the fitting surface of support and motor housing is H7/h6.
A kind of axial force measuration method for multistage direct connected centrifugal pump comprises the steps:
1) on the top of the motor shaft of multistage direct connected centrifugal pump, one support be set and be located on this support, be used for transmitting the power conducting unit of axial force, the motor shaft top is connected with this power conducting unit, and between power conducting unit and support, the tolerance of fitting surface is H7/h6;
2) between support and power conduction mechanism, a stop pin is set, is used for preventing support and power conducting unit relative sliding;
3) arrange one between motor shaft and power conduction mechanism and be used for bearing, conducting the deep groove ball bearing of axial force;
4) fix a forcemeter in the motor shaft overhung, the forcemeter lower end is fixedly connected with the power conduction mechanism, and the forcemeter upper end is connected with support by a bolt, for the axial force of measuring force conduction mechanism.
Beneficial effect of the present invention is:
The present invention directly transforms on the electric machine structure basis of multistage direct connected centrifugal pump and obtains, not only can accurately record the axial force actual value, and can not increase and take additional space, use member also to obtain from the transformation motor, effectively saved cost and respond well, simple in structure and long service life has very strong practicability.
Description of drawings
Fig. 1 is a kind of axial force measuring device general structure schematic diagram in the specific implementation for multistage direct connected centrifugal pump of the present invention.
Fig. 2 is a kind of axial force measuring device structural drawing in the specific implementation for multistage direct connected centrifugal pump of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the present invention.
As shown in Figure 1, a kind of axial force measuring device 400 for multistage direct connected centrifugal pump of the present invention is located at multistage direct connected centrifugal pump top, this multistage direct connected centrifugal pump is followed successively by the pump housing 100, motor cabinet 200, motor 300 from the bottom up, and the present invention is located at motor 300 tops.
As shown in Figure 2, motor 300 centers are motor shaft 310, and the motor shaft below is provided with the roller bearing 312 for bearing radial force; Motor 300 tops are provided with support 320, and this support 320 is fixed on motor housing 301, and in the present embodiment, support 320 is that fine finishing coordinates with the fitting surface of motor housing 301, and its fit tolerance is H7/h6; Support 320 centers are offered porose, and bearing support 340 passes from this hole.
Bearing support 340 is an inverted hollow cup-like structure, its upper end closed, and flange 341 is opened and be provided with in the lower end; Bearing support 340 radially is fixed in the hole of support 320 by this flange 341, and motor shaft 310 stretches in this bearing support 340; Flange 341 fixes with bearing (ball) cover 332 by a bolt 342, also is provided with stop pin 331 between flange 341 and support 320.
In the present embodiment, support 320 all adopts Ordinary Steel to make with bearing support 340, and bearing support 340 is that fine finishing coordinates with the fitting surface in the hole of support 320, and its fit tolerance is H7/h6; Deep groove ball bearing 311 is located between motor shaft 310 and bearing support 340, is used for bearing axial force and radial force.
Bearing support 340 upper ends offer bolt hole, electronics dynamometer 410 is located at this bearing support 340 tops, this electronics dynamometer 410 upper ends hang by a bolt 411 roof that is fixed in support 320 inside, and electronics dynamometer 410 lower ends are fixedly connected with bearing support 340 by the bolt 412 of being located in bolt hole.In addition, the opening 321 that the electric wire 413 of electronics dynamometer 410 is offered from support 320 sidewalls leads to the outside, is connected with a display unit, and operator can directly read axial force numerical value from display unit.
In the present embodiment, the present invention transforms on the basis of the original motor of multistage direct connected centrifugal pump, removes upper end fan and the top cover of original motor, and the upper and lower bearing of changing in motor is deep groove ball bearing 311 and roller bearing 312; At the interior increase installation shaft of support 320 bearing 340 and stop pin 331, and electronics dynamometer 410 is installed on bearing support 340 tops; Except the bolt 411,412 at electronics dynamometer two ends Shang Xia 410, increase parts and all can adopt the interior parts of original motor.
When multistage direct connected centrifugal pump work, the axial force of motor shaft 310 passes to bearing support 340 by deep groove ball bearing 311, due to electronics dynamometer 410 upper ends and support 320 fixes and lower end and motor cabinet 340 fix, the suffered axial force of bearing support 340 can be directly passed to electronics dynamometer 410, thereby the certain elongation of the stressed generation of electronics dynamometer 410 records the axial force of multistage direct connected centrifugal pump.
In the present embodiment, the match power of measured multistage direct connected centrifugal pump is not more than the power of motor 300, and the theoretical maximum axial force F 1 of multistage direct connected centrifugal pump is less than the greatest measurement F2 of electronics dynamometer 410, usually F2=1.5F1; F1 is less than the maximum strength of deep groove ball bearing 311, roller bearing 312 simultaneously.
Because directly transforming on the electric machine structure basis of multistage direct connected centrifugal pump, the present invention obtains, not only can accurately record the axial force actual value, and can not increase and take additional space, use member also to obtain from the transformation motor, effectively saved cost and respond well, simple in structure and long service life has very strong practicability.
Above demonstration and described basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (8)
1. an axial force measuring device that is used for multistage direct connected centrifugal pump, comprise the forcemeter of being located on motor, and the motor shaft upper/lower terminal of described motor is respectively equipped with first, second bearing, it is characterized in that:
Described forcemeter comprises a support, a measuring device and a power conducting unit, wherein:
Described power conducting unit is connected with described motor shaft, and described clutch shaft bearing is located between this power conducting unit and motor shaft, and this clutch shaft bearing is used for the axial force of motor shaft is reached the power conducting unit;
Described measuring device is connected with the power conducting unit, is used for the axial force that the measuring force conducting unit is subject to;
On the shell that described is set up in motor, described measuring device, power conducting unit all are located in this support.
2. a kind of axial force measuring device for multistage direct connected centrifugal pump as claimed in claim 1, is characterized in that, described power conducting unit specifically comprises a bearing support, and this bearing support radially is fixed on described support, and described clutch shaft bearing is located in this bearing support.
3. a kind of axial force measuring device for multistage direct connected centrifugal pump as claimed in claim 2, is characterized in that, the tolerance of the fitting surface of described support and bearing support is H7/h6.
4. a kind of axial force measuring device for multistage direct connected centrifugal pump as claimed in claim 2, is characterized in that, is provided be used to preventing the relative described support of bearing support stop pin in axial sliding between described support and bearing support.
5. a kind of axial force measuring device for multistage direct connected centrifugal pump as claimed in claim 1, it is characterized in that, described measuring device is specially an electronics dynamometer, and this electronics dynamometer upper end is connected with described support by a bolt, and the lower end is fixedly connected with this power conducting unit by a bolt.
6. a kind of axial force measuring device for multistage direct connected centrifugal pump as claimed in claim 1, is characterized in that, described clutch shaft bearing adopts deep groove ball bearing, and described the second bearing adopts roller bearing.
7. a kind of axial force measuring device for multistage direct connected centrifugal pump as claimed in claim 1, is characterized in that, the tolerance of the fitting surface of described support and motor housing is H7/h6.
8. an axial force measuration method that is used for multistage direct connected centrifugal pump, is characterized in that, the method comprises the steps:
1) on the top of the motor shaft of multistage direct connected centrifugal pump, one support be set and be located on this support, be used for transmitting the power conducting unit of axial force, the motor shaft top is connected with this power conducting unit, and between power conducting unit and support, the tolerance of fitting surface is H7/h6;
2) between described support and power conduction mechanism, a stop pin is set, is used for preventing described support and power conducting unit relative sliding;
3) arrange one between described motor shaft and power conduction mechanism and be used for bearing, conducting the deep groove ball bearing of axial force;
4) fix a forcemeter in the motor shaft overhung, described forcemeter lower end is fixedly connected with described power conduction mechanism, and the forcemeter upper end is connected with described support by a bolt, for the axial force of measuring force conduction mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310067993.XA CN103147999B (en) | 2013-03-04 | 2013-03-04 | A kind of axial force measuring device for multistage direct connected centrifugal pump and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310067993.XA CN103147999B (en) | 2013-03-04 | 2013-03-04 | A kind of axial force measuring device for multistage direct connected centrifugal pump and method |
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| CN103147999A true CN103147999A (en) | 2013-06-12 |
| CN103147999B CN103147999B (en) | 2016-01-20 |
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| CN201310067993.XA Active CN103147999B (en) | 2013-03-04 | 2013-03-04 | A kind of axial force measuring device for multistage direct connected centrifugal pump and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629121A (en) * | 2013-12-12 | 2014-03-12 | 兰州理工大学 | Dynamic axial force testing device for impeller of centrifugal pump |
| CN103940540A (en) * | 2014-04-14 | 2014-07-23 | 上海交通大学 | Measuring device and method of fluid dynamic axial force of vertical type wet rotor of shielded motor |
| CN103967805A (en) * | 2014-04-08 | 2014-08-06 | 丹东克隆先锋泵业有限公司 | Pump spindle axial force testing device |
| CN107575400A (en) * | 2017-08-28 | 2018-01-12 | 沈阳鼓风机集团申蓝机械有限公司 | A kind of vertical shield pump rotor axial force test device and method of testing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5649449A (en) * | 1995-04-25 | 1997-07-22 | Abs Pump Production Ab | Method and apparatus for determining the instantaneous operation conditions of a centrifugal pump |
| JP2001090688A (en) * | 1999-09-22 | 2001-04-03 | Fujikawa Kikai Kk | Submerged motor pump monitor device |
| CN2505810Y (en) * | 2001-05-10 | 2002-08-14 | 大庆油田有限责任公司 | New type screw pump polish rod torque, rotating speed, axial force measuring device |
| CN2802482Y (en) * | 2005-01-30 | 2006-08-02 | 陆雄 | Device for measuring axial force for pump |
| CN101762353A (en) * | 2010-01-14 | 2010-06-30 | 重庆理工大学 | CVT (Contiuously Variable transmission) axial force test device |
| CN102866066A (en) * | 2012-09-17 | 2013-01-09 | 中国科学院力学研究所 | Rotating bending fatigue test device and method with axial load control function |
| CN203130535U (en) * | 2013-03-04 | 2013-08-14 | 上海凯泉泵业（集团）有限公司 | Axial force measuring device for multi-stage direct-coupled centrifugal pump |
-
2013
- 2013-03-04 CN CN201310067993.XA patent/CN103147999B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5649449A (en) * | 1995-04-25 | 1997-07-22 | Abs Pump Production Ab | Method and apparatus for determining the instantaneous operation conditions of a centrifugal pump |
| JP2001090688A (en) * | 1999-09-22 | 2001-04-03 | Fujikawa Kikai Kk | Submerged motor pump monitor device |
| CN2505810Y (en) * | 2001-05-10 | 2002-08-14 | 大庆油田有限责任公司 | New type screw pump polish rod torque, rotating speed, axial force measuring device |
| CN2802482Y (en) * | 2005-01-30 | 2006-08-02 | 陆雄 | Device for measuring axial force for pump |
| CN101762353A (en) * | 2010-01-14 | 2010-06-30 | 重庆理工大学 | CVT (Contiuously Variable transmission) axial force test device |
| CN102866066A (en) * | 2012-09-17 | 2013-01-09 | 中国科学院力学研究所 | Rotating bending fatigue test device and method with axial load control function |
| CN203130535U (en) * | 2013-03-04 | 2013-08-14 | 上海凯泉泵业（集团）有限公司 | Axial force measuring device for multi-stage direct-coupled centrifugal pump |
Non-Patent Citations (2)
| Title |
|---|
| 贾大伟: "多级离心泵轴向力测试与平衡改进设计研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
| 连长龙等: "立式屏蔽电泵轴向力测量工装设计与应用", 《机械管理开发》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629121A (en) * | 2013-12-12 | 2014-03-12 | 兰州理工大学 | Dynamic axial force testing device for impeller of centrifugal pump |
| CN103967805A (en) * | 2014-04-08 | 2014-08-06 | 丹东克隆先锋泵业有限公司 | Pump spindle axial force testing device |
| CN103967805B (en) * | 2014-04-08 | 2016-04-27 | 丹东克隆先锋泵业有限公司 | Pump shaft axial-force testing device |
| CN103940540A (en) * | 2014-04-14 | 2014-07-23 | 上海交通大学 | Measuring device and method of fluid dynamic axial force of vertical type wet rotor of shielded motor |
| CN103940540B (en) * | 2014-04-14 | 2016-03-02 | 上海交通大学 | Protected type motor vertical wet rotor hydrodynamic axial-force testing device and method |
| CN107575400A (en) * | 2017-08-28 | 2018-01-12 | 沈阳鼓风机集团申蓝机械有限公司 | A kind of vertical shield pump rotor axial force test device and method of testing |
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| CN103147999B (en) | 2016-01-20 |
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