CN107219040A - A kind of dynamic poise device for being used to simulate vertical hydropower generator - Google Patents
A kind of dynamic poise device for being used to simulate vertical hydropower generator Download PDFInfo
- Publication number
- CN107219040A CN107219040A CN201710577358.4A CN201710577358A CN107219040A CN 107219040 A CN107219040 A CN 107219040A CN 201710577358 A CN201710577358 A CN 201710577358A CN 107219040 A CN107219040 A CN 107219040A
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- Prior art keywords
- stabilizer
- main shaft
- mainframe
- hydropower generator
- poise device
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- 239000003381 stabilizer Substances 0.000 claims abstract description 48
- 230000008878 coupling Effects 0.000 claims abstract description 18
- 238000010168 coupling process Methods 0.000 claims abstract description 18
- 238000005859 coupling reaction Methods 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining imbalance
- G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/188—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for motors; for generators; for power supplies; for power distribution
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Algebra (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a kind of dynamic poise device for being used to simulate vertical hydropower generator, including mainframe, in the top of the mainframe provided with the motor for corresponding to connection therewith, motor connection corresponding with shaft coupling, shaft coupling connection corresponding with main shaft, upper bearing (metal) is provided with one end of the main shaft, lower stabilizer is provided with the other end of the main shaft, stabilizer and lower bearing is sequentially provided with the centre of the main shaft.The present invention have it is easy to maintenance, multiple functional, facilitate DATA REASONING and human users easily advantage.
Description
Technical field
The present invention relates to dynamic balancing machine field, more particularly to a kind of dynamic balancing dress for being used to simulate vertical hydropower generator
Put.
Background technology
Balancing machine is the machine for measuring rotating object (rotor) amount of unbalance size and location.Because rotor is around its axis
During rotation, centrifugal force is produced due to the non-uniform mass relative to axis.This uneven centrifugal action is in rotor
Vibration can be caused on bearing, noise is produced and accelerate bearing wear, so that having a strong impact on performance and the life-span of product, therefore to transport
Detected with balancing machine.
The main performance of balancing machine is to use minimum achievable residual unbalance, and two overall targets of unbalance reduction ratio
Represent.The former is the minimum value for the residual unbalance, that balance performance makes that rotor reaches, it is to weigh balancing machine highest balance
The index of ability；The latter be after once correcting the ratio between amount of unbalance and the initial unbalance, of reduction, it is to weigh flat
The index for the efficiency that weighs, is typically represented with percentage.
Because rotor quality is uneven, rotor c.g. produces eccentric throw with axle center.As the spindle turns, due to out-of-balance mass
The effect of centrifugal intertia force, main shaft will produce flexural deformation.Shaft distortion is bigger, vibrates also more serious.One unbalanced rotor
Occur a pressure to its support arrangement and rotor itself in its rotary course, and cause vibration.If rotor quality is distributed
Uniformly, manufacture and install all qualified, then operating is balance.Ideally, its pressure to bearing, does not have in addition to the gravitational force
Other power, i.e., when with stationary rotor as, only static pressure.It is this to rotate and only have static pressure to turn on bearing when static
Son, the rotor referred to as balanced.If rotor is rotated with a certain angular speed, to bearing in addition to having static pressure also additional dynamic pressure,
A unbalanced couple can be then produced, rotor unbalance is caused, then referred to as unbalanced rotor.
Existing dynamic balancing machine is unsatisfactory for application in terms of hydropower industry teaching, and untrue simulation vertical hydropower generator turns
Son and runner, simply simple measurement unbalancing value, it is impossible to meet on-the-spot teaching demand.
The content of the invention
In order to overcome defect of the prior art, there is provided a kind of dynamic balancing dress for being used to simulate vertical hydropower generator
Put.
The present invention is realized by following proposal：
A kind of dynamic poise device for being used to simulate vertical hydropower generator, including mainframe, in the upper of the mainframe
Side is provided with the motor for corresponding to connection therewith, motor connection corresponding with shaft coupling, the shaft coupling and main shaft pair
It should connect, upper bearing (metal) is provided with one end of the main shaft, lower stabilizer is provided with the other end of the main shaft, in the main shaft
Centre is sequentially provided with stabilizer and lower bearing；
The upper surface of stabilizer offers V-groove on described, and the centre of stabilizer offers through hole on described, described
Through hole matches with main shaft, and sealing ring is provided with the junction of the through hole and main shaft, and the sealing ring passes through with upper stabilizer
Bolt correspondence is connected；
Open up fluted in the upper surface of the lower stabilizer, fixing hole is offered in the centre of the lower stabilizer,
The fixing hole is provided with closure, and the closure is connected with lower stabilizer by the way that bolt is corresponding.
The mainframe include upper wardrobe body and lower cabinet body, in the upper wardrobe body be provided with shaft coupling, the shaft coupling with
The junction of main shaft is provided with upper bearing (metal), and upper stabilizer and lower bearing are provided with the lower cabinet body, and the main shaft passes through lower cabinet body.
Support frame is provided with the lower section of the mainframe.
The upper bearing (metal) matches with fixed plate, fixed plate connection corresponding with upper wardrobe body.
The lower bearing matches with connecting plate, connecting plate connection corresponding with lower cabinet body.
The upper stabilizer and mainframe are tangent, and the diameter of the lower stabilizer is less than the length of mainframe.
The diameter of the closure is more than the diameter of fixing hole.
Beneficial effects of the present invention are：
1. drive connection using motor in a kind of dynamic poise device for simulating vertical hydropower generator of the present invention
Axle device, so that main axis is dragged, therefore the kind of drive of dragging rotor is to pass through shaft coupling dragging rotor, circle by motor
Advantage with dragging is not influence the amount of unbalance of rotor, and balance quality is high.
2. upper stabilizer is arranged on main shaft in a kind of dynamic poise device for simulating vertical hydropower generator of the present invention
Centre, lower stabilizer be arranged on main shaft bottom, and offered on upper stabilizer offered on V-groove, lower stabilizer it is recessed
Groove, can install balance weight in V-groove and groove, and balance weight can be moved along grooved rail, pass through the quality of adjustment block
And position, reach the dynamically balanced purpose of control and regulation shake.
3. a kind of dynamic poise device for being used to simulate vertical hydropower generator of the present invention is provided with upper bearing (metal) on main shaft
And lower bearing, in experimentation, bearing can be adjusted as needed and obtains different rotary speeies, it is not only easy to operate, and
Also it is beneficial to maintenance maintenance.
Brief description of the drawings
Fig. 1 is a kind of structural representation for being used to simulate the dynamic poise device of vertical hydropower generator of the present invention；
Fig. 2 is the vertical view knot of upper stabilizer in a kind of dynamic poise device for simulating vertical hydropower generator of the present invention
Structure schematic diagram；
In figure：1 is motor, and 2 be mainframe, and 21 be upper wardrobe body, and 22 be lower cabinet body, and 3 be shaft coupling, and 4 be main shaft, 5
It is upper stabilizer for upper bearing (metal), 6,7 be lower bearing, and 8 be lower stabilizer, and 9 be support frame, and 10 be fixed plate, and 11 be connecting plate, 12
It is through hole for V-groove, 13,14 be sealing ring, and 15 be groove, and 16 be fixing hole, and 17 be closure.
Embodiment
The present invention is further described with specific embodiment below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of dynamic poise device for being used to simulate vertical hydropower generator, including mainframe 2, described
The top of mainframe 2 is provided with the motor 1 for corresponding to connection therewith, and the connection corresponding with shaft coupling 3 of motor 1 is described
The connection corresponding with main shaft 4 of shaft coupling 3, is provided with upper bearing (metal) 5, in the case where the other end of the main shaft 4 is provided with one end of the main shaft 4
Stabilizer 8, stabilizer 6 and lower bearing 7 are sequentially provided with the centre of the main shaft 4, in the lower section of the mainframe 2 provided with branch
Support 9.In a kind of dynamic poise device for simulating vertical hydropower generator of the present invention shaft coupling is driven using motor 1
3, rotated so as to drag main shaft 4, therefore the kind of drive of dragging rotor is by shaft coupling 3 to drag rotor by motor 1, is enclosed
Advantage with dragging is not influence the amount of unbalance of rotor, and balance quality is high.
The upper surface of stabilizer 6 offers V-groove 12 on described, and the centre of stabilizer 6 offers through hole on described
13, the through hole 13 matches with main shaft 4, and sealing ring 14, the sealing ring are provided with the junction of the through hole 13 and main shaft 4
14 connect with upper stabilizer 6 by the way that bolt is corresponding；Fluted 15 are opened up in the upper surface of the lower stabilizer 8, described lower flat
The centre of weighing apparatus wheel 8 offers fixing hole 16, and closure 17, the closure 17 and lower stabilizer are provided with the fixing hole 16
8 are connected by bolt correspondence.Upper stabilizer 6 is pacified in a kind of dynamic poise device for simulating vertical hydropower generator of the present invention
Mounted in the centre of main shaft 4, lower stabilizer 8 is arranged on the bottom of main shaft 4, and V-groove 12 is offered on upper stabilizer 6, lower flat
Fluted 15 are opened up on weighing apparatus wheel 8, balance weight can be installed in V-groove 12 and groove 15, balance weight can be moved along grooved rail,
Quality and position by adjustment block, reach the dynamically balanced purpose of control and regulation shake.
The mainframe 2 includes upper wardrobe body 21 and lower cabinet body 22, shaft coupling 3 is provided with the upper wardrobe body 21, described
The junction of shaft coupling 3 and main shaft 4 is provided with upper bearing (metal) 5, and upper stabilizer 6 and lower bearing 7 are provided with the lower cabinet body 22, described
Main shaft 4 pass through lower cabinet body 22, the present invention in mainframe 2 be vertical structure, be divided into above and below two layers so that the space structure of mainframe 2
Distribution is more reasonable, makes the distribution of other assemblies very clear, is easy to Operation and Maintenance.
The upper bearing (metal) 5 matches with fixed plate 10, the connection corresponding with upper wardrobe body 21 of fixed plate 10.The lower bearing
7 match with connecting plate 11, the connection corresponding with lower cabinet body 22 of connecting plate 11.It is of the invention a kind of for simulating vertical water turbine hair
The dynamic poise device of group of motors is provided with upper bearing (metal) 5 and lower bearing 7 on main shaft 4, in experimentation, can adjust as needed
Bearing obtains different rotary speeies, not only easy to operate, and is also beneficial to maintenance maintenance.
As shown in Fig. 2 the upper stabilizer 6 and mainframe 2 are tangent, the diameter of the lower stabilizer 8 is less than mainframe 2
Length, when experimental implementation is balanced regulation, adjusts the balance weight on upper stabilizer 6, and ensure that balance weight is turning first
V-groove 12 will not be thrown out of when dynamic, when needing further regulation dynamic equilibrium, can add flat on the groove of lower stabilizer 8
Weighed block, and the quality of adjustment block in time, it is ensured that experiment is smoothly completed.
As shown in figure 1, the diameter of the closure 17 is more than the diameter of fixing hole 16, closure 17 can directly cover solid
Determine hole 16, strengthen its bonding strength so that the connection of lower stabilizer 8 and main shaft 4 is even closer, reduce the vibration of lower stabilizer 8,
Prevent from influenceing experimental results.
Monitor control system can be increased when the present invention is used, such as ZJS-4 intelligent vibrations throw monitor is with single-chip microcomputer
For the intelligent digitalized instrument of four-way of core processor.The instrument is connected with eddy current displacement sensor can monitor machine on-line
Group major axis X, the radial vibration of Y-direction；Shaking for vertically and horizontally two passages can be monitored on-line by being connected with low-frequency shock transducer
It is dynamic；Unit vibration, throw signal can be monitored in real time.
According to the connection circuit of ZJS-4 intelligent vibration throw monitors, close circuit breaker Q S and switch on power, power supply indicator
XD is bright, and rotating speed apparent source obtains electric, illustrates power supply normal ON.Starting button SB2 is pressed, A.C. contactor KM closes connection and become
Frequency device power supply, frequency converter obtain it is electric wait to run, run switch on the table that cuts in frequency, motor power connect, motor operation.Adjust rotating speed
Potentiometer on table, you can regulation motor running speed.SB1 buttons are that frequency converter runs stop button.
The dynamic poise device principle of the present invention is tested using 3 spline fit methods.Start rotor adjustment rotating speed to maximum to shake
Dynamic rotating speed, measurement vibration maximum simultaneously records original vibration amplitude A0；Stop rotor, on balance weight radius R identical circumference
Take " A1 ", " A2 " and " A3 " at 3 points, angle is approximate 120 ° two-by-two；Test mass block M ' is mounted respectively to " A1 ", " A2 " and " A3 " place,
Start rotor and adjust rotating speed to maximum vibration rotating speed, vibration amplitude " A1 ", " A2 " and " A3 " is measured respectively；According to measurement test mass block
The vibration values that M ' is measured in 3 places, the amplitude A ' as caused by test mass block M ' can be calculated as formula；Because of amplitude and injustice
Weighing apparatus quality is directly proportional, and then calculates original unbalance mass, and lay particular stress on direction；According to gained is calculated, corresponding counterweight is installed
Block is verified.
Although having done more detailed elaboration to technical scheme and having enumerated, it will be appreciated that for ability
For field technique personnel, modification is made to above-described embodiment or equivalent alternative solution is used, this is to those skilled in the art
It is it is clear that these modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to the present invention for member
Claimed scope.
Claims (7)
1. a kind of dynamic poise device for being used to simulate vertical hydropower generator, including mainframe (2), in the mainframe (2)
Top provided with therewith correspond to connection motor (1), it is characterised in that：The motor (1) is corresponding with shaft coupling (3)
Connection, shaft coupling (3) connection corresponding with main shaft (4), is provided with upper bearing (metal) (5), in the master in one end of the main shaft (4)
The other end of axle (4) is provided with lower stabilizer (8), and upper stabilizer (6) and lower bearing are sequentially provided with the centre of the main shaft (4)
(7)；
The upper surface of stabilizer (6) offers V-groove (12) on described, and the centre of stabilizer (6) offers logical on described
Hole (13), the through hole (13) matches with main shaft (4), and sealing ring is provided with the junction of the through hole (13) and main shaft (4)
(14), the sealing ring (14) connects with upper stabilizer (6) by the way that bolt is corresponding；
Fluted (15) are opened up in the upper surface of the lower stabilizer (8), fixation is offered in the centre of the lower stabilizer (8)
Hole (16), is provided with closure (17) on the fixing hole (16), and the closure (17) passes through bolt pair with lower stabilizer (8)
It should connect.
2. a kind of dynamic poise device for being used to simulate vertical hydropower generator according to claim 1, it is characterised in that：
The mainframe (2) includes upper wardrobe body (21) and lower cabinet body (22), shaft coupling (3) is provided with the upper wardrobe body (21), in institute
The junction for stating shaft coupling (3) and main shaft (4) is provided with upper bearing (metal) (5), in the lower cabinet body (22) provided with upper stabilizer (6) and
Lower bearing (7), the main shaft (4) passes through lower cabinet body (22).
3. a kind of dynamic poise device for being used to simulate vertical hydropower generator according to claim 1, it is characterised in that：
Support frame (9) is provided with the lower section of the mainframe (2).
4. a kind of dynamic poise device for being used to simulate vertical hydropower generator according to claim 2, it is characterised in that：
The upper bearing (metal) (5) matches with fixed plate (10), fixed plate (10) connection corresponding with upper wardrobe body (21).
5. a kind of dynamic poise device for being used to simulate vertical hydropower generator according to claim 2, it is characterised in that：
The lower bearing (7) matches with connecting plate (11), connecting plate (11) connection corresponding with lower cabinet body (22).
6. a kind of dynamic poise device for being used to simulate vertical hydropower generator according to claim 1, it is characterised in that：
The upper stabilizer (6) and mainframe (2) are tangent, and the diameter of the lower stabilizer (8) is less than the length of mainframe (2).
7. a kind of dynamic poise device for being used to simulate vertical hydropower generator according to claim 1, it is characterised in that：
The diameter of the closure (17) is more than the diameter of fixing hole (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710577358.4A CN107219040A (en) | 2017-07-14 | 2017-07-14 | A kind of dynamic poise device for being used to simulate vertical hydropower generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710577358.4A CN107219040A (en) | 2017-07-14 | 2017-07-14 | A kind of dynamic poise device for being used to simulate vertical hydropower generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107219040A true CN107219040A (en) | 2017-09-29 |
Family
ID=59952159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710577358.4A Pending CN107219040A (en) | 2017-07-14 | 2017-07-14 | A kind of dynamic poise device for being used to simulate vertical hydropower generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107219040A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008051720A (en) * | 2006-08-25 | 2008-03-06 | Denso Corp | Dynamic balance testing machine |
| CN101533580A (en) * | 2009-04-17 | 2009-09-16 | 哈尔滨工业大学 | Dynamic balancing test device of rigid double-disk rotor |
| CN102032976A (en) * | 2009-09-29 | 2011-04-27 | 大和制衡株式会社 | Balance measuring apparatus for tyre |
| CN204345017U (en) * | 2014-12-26 | 2015-05-20 | 华能澜沧江水电股份有限公司小湾水电厂 | The anti-aeration valve water leakage device of a kind of generator's motor shaft |
| CN104913878A (en) * | 2015-06-04 | 2015-09-16 | 广东石油化工学院 | Rotating equipment dynamic balancing device |
| CN105422369A (en) * | 2015-12-31 | 2016-03-23 | 重庆水轮机厂有限责任公司 | Vertical mixed-flow type water turbine generator set structure |
| CN105675213A (en) * | 2016-01-05 | 2016-06-15 | 国网甘肃省电力公司电力科学研究院 | Counter weight method for hydro-generator rotor dynamic balancing test |
| CN206974615U (en) * | 2017-07-14 | 2018-02-06 | 华能澜沧江水电股份有限公司 | A kind of dynamic poise device for being used to simulate vertical hydropower generator |
-
2017
- 2017-07-14 CN CN201710577358.4A patent/CN107219040A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008051720A (en) * | 2006-08-25 | 2008-03-06 | Denso Corp | Dynamic balance testing machine |
| CN101533580A (en) * | 2009-04-17 | 2009-09-16 | 哈尔滨工业大学 | Dynamic balancing test device of rigid double-disk rotor |
| CN102032976A (en) * | 2009-09-29 | 2011-04-27 | 大和制衡株式会社 | Balance measuring apparatus for tyre |
| CN204345017U (en) * | 2014-12-26 | 2015-05-20 | 华能澜沧江水电股份有限公司小湾水电厂 | The anti-aeration valve water leakage device of a kind of generator's motor shaft |
| CN104913878A (en) * | 2015-06-04 | 2015-09-16 | 广东石油化工学院 | Rotating equipment dynamic balancing device |
| CN105422369A (en) * | 2015-12-31 | 2016-03-23 | 重庆水轮机厂有限责任公司 | Vertical mixed-flow type water turbine generator set structure |
| CN105675213A (en) * | 2016-01-05 | 2016-06-15 | 国网甘肃省电力公司电力科学研究院 | Counter weight method for hydro-generator rotor dynamic balancing test |
| CN206974615U (en) * | 2017-07-14 | 2018-02-06 | 华能澜沧江水电股份有限公司 | A kind of dynamic poise device for being used to simulate vertical hydropower generator |
Non-Patent Citations (1)
| Title |
|---|
| 黄益生: "立式水轮发电机组导轴承径向力的测量与研究", 《大电机技术》 * |
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Application publication date: 20170929 |