CN207816554U - The automatic knocking device of Generator Stator Winding Ends modal test force snesor - Google Patents
The automatic knocking device of Generator Stator Winding Ends modal test force snesor Download PDFInfo
- Publication number
- CN207816554U CN207816554U CN201820226086.3U CN201820226086U CN207816554U CN 207816554 U CN207816554 U CN 207816554U CN 201820226086 U CN201820226086 U CN 201820226086U CN 207816554 U CN207816554 U CN 207816554U
- Authority
- CN
- China
- Prior art keywords
- balancing pole
- stator winding
- cam
- slide bar
- bottom plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model is related to the automatic knocking devices of Generator Stator Winding Ends modal test force snesor, technical solution is, vertical upright post sleeve is provided on bottom plate, equipped with vertically mobile and fixed slide bar on upright post sleeve, the top of slide bar is through balancing pole of the shaft equipped with rotation, one end lower part of balancing pole is provided with downwardly convex arc block, the cam that its rotation is controlled by handle is provided with below arc block on pedestal, there is mandril corresponding with arc block on cam, equipped with the resetting spring being connected with bottom plate on balancing pole between cam and slide bar, the other end of balancing pole is hammered into shape equipped with experiment, the utility model is obviously improved the quality of force signal during modal test, significantly improve testing efficiency, greatly shorten test period, reduce the labor intensity of tester.
Description
Technical field
The utility model is related to electrical test tool, especially a kind of Generator Stator Winding Ends modal test firmly passes
The automatic knocking device of sensor.
Background technology
Currently, in power industry, according to National Energy Board 2014 editions《Prevent 25 emphasis of power generation accident
It is required that》Regulation：200MW and the installation of the above capacity steam turbine generator, it is new put into operation 1 year after and when each overhaul will carry out stator around
Group end modal test.Mainly have with this relevant national standard of experiment and professional standard：《Turbine-type Generator stator winding end
Portion's dynamic characteristic and vibration testing method and evaluation》(GB/T 20140-2006) and《Large turbo-type generator winding overhang dynamic
The measurement and evaluation of characteristic》(DL/T 735-2000) etc. recommends constant excitation method and is tested in these standards.
So-called constant excitation method is exactly to fix the nose of a certain bar during the test for beating point, along clockwise or counterclockwise
Vibration pickup point is gradually moved in direction, and (each bar is measured as a measurement point, or every one to two bars as one
Point).
Tester station is needed to hold power hammer (also known as experiment hammer, power biography built in tup in fixed position during the test
Sensor) tap the nose of some bar repeatedly when test needs, general each vibration measuring point be required for 3 times or more effectively
Measurement data is required according to standard, generally generator vapour end and encourage end circumference on choose 36 to 54 measuring points, therefore mode altogether
Total effective number of taps that experiment needs is about 108 to 162 times.In order to ensure the correlation of test data, tester is needed
Identical dynamics, direction are kept when making every effort to tap each time in entire test process, are dropped hammer and are a little remained unchanged as far as possible, and fall
It wants crisp when hammer, hammer is avoided to be adhered or rebound with coil knuckle.And when tester taps, by standing place
Limitation, inconvenience of having an effect, direction is not easy to control when hammering, and in continuous tap, the dynamics of percussion, direction, drop point often have
Deviation so that invalid number of taps greatly increases, and is finally completed all tests and takes around percussion 300-500 times, even more
It is more, thus the testing time was up to 3 to 6 hours.Simultaneously as generator end structure is special, in order to avoid interference, tester is not
Allow to help, by any part of stator winding end, (additional quality can change the modal parameter of testee, external vibration
It can interfere.Annotation：When tester is leaned against on testee, when percussion body will necessarily slight vibration, this vibration meeting
Superimposed, the acceleration signal that disturbing acceleration sensor measures with the vibration caused by tapping), therefore tester is difficult to take
More comfortable stance is obtained, test for a long time be easy to cause fatigue, and tester once falls or step on sky, pole in generator end
Easily cause the person or equipment safety accident (there are many insulating parts in end, and people, which tramples and pull fragile insulating part, can make its damage,
Destroy its insulation performance；There are many insulating elements and a metalwork in end, and the human body metal parts that collides with can then lead to personal injury),
Therefore, it is imperative to improve and innovate.
Utility model content
For the above situation, to overcome the defect of the prior art, the purpose of the utility model to be just to provide a kind of generator
Stator winding end modal test force snesor automatic knocking device is force signal direction when effectively can solve to tap manually, big
Small unstable and test safety problem.
The technical solution that the utility model solves is, a kind of Generator Stator Winding Ends modal test with force snesor from
Dynamic knocking device, including bottom plate and experiment are hammered into shape, and vertical upright post sleeve is provided on bottom plate, is equipped on upright post sleeve and vertically moves
Dynamic and fixed slide bar, through balancing pole of the shaft equipped with rotation, one end lower part of balancing pole is provided with downwardly convex for the top of slide bar
The arc block risen, arc block lower section are provided with the cam for controlling its rotation by handle on pedestal, have and arc block phase on cam
Corresponding mandril, equipped with the resetting spring being connected with bottom plate, the other end dress of balancing pole on balancing pole between cam and slide bar
There is experiment to hammer into shape.When experiment, by swinging handle, makes to be fixed on cam and rotate clockwise, when the tip of cam upper ejector pin is gradually drawn
The arc block of overbalance bar, experiment hammer kinetic energy gradually increase, and when experiment hammer kinetic energy reaches maximum, the tip of mandril is streaked just
Arc block, experiment hammer are continued counterclockwise movement by effect of inertia, tap testee, arc is gradually left with the tip of pushing rod
Block, balancing pole are rotated clockwise by resetting spring pulling force effect, and experiment hammer rises, and primary effective hammer action is completed.
The utility model structure novel is unique, and advantages of simple is easy to operate, at low cost, by adjusting slide bar height, Ke Yishi
It can when answering the test under various generator end structures, control handle to shake the i.e. changeable percussion power degree of speed, and tapping
Ensureing that direction is identical when continuous tap, beating point is identical, and dynamics is stablized, crisp when dropping hammer, and is not adhered testee, thus
It can be obviously improved the quality of force signal during modal test, testing efficiency is significantly improved, greatly shorten test period, reduced
The labor intensity of tester is the wound on the semi-automatic knocking device of Generator Stator Winding Ends modal test force snesor
Newly.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the sectional view of the utility model cam follower.
Specific implementation mode
Specific embodiment of the present utility model is described in further detail below in conjunction with attached drawing.
It being provided by Fig. 1 to Fig. 2, the utility model includes that bottom plate and experiment are hammered into shape, and vertical upright post sleeve 4 is provided on bottom plate 6,
Equipped with vertically mobile and fixed slide bar 3 on upright post sleeve 4, the top of slide bar is equipped with the balancing pole 2 of rotation through shaft 19,
One end lower part of balancing pole is provided with downwardly convex arc block 18, and 18 lower section of arc block is provided on pedestal to be controlled by handle
Its cam 15 rotated has mandril 16 corresponding with arc block 18 on cam, is filled on balancing pole between cam 15 and slide bar
There is the resetting spring 7 being connected with bottom plate, the other end of balancing pole is equipped with experiment hammer 1.When experiment, by swinging handle, make fixation
It is rotated clockwise in cam, when the arc block of balancing pole is gradually streaked at the tip of cam upper ejector pin, experiment hammer kinetic energy gradually increases,
When experiment hammer kinetic energy reaches maximum, arc block is streaked at the tip of mandril just, and experiment hammer is continued fortune counterclockwise by effect of inertia
It is dynamic, testee is tapped, gradually leaves arc block with the tip of pushing rod, balancing pole is turned clockwise by resetting spring pulling force effect
Dynamic, experiment hammer rises, and primary effective hammer action is completed.
To ensure using effect, it is provided with the folder 8 for fixing bottom plate on the bottom plate, is provided on folder 8 solid
Determine bolt 9, the end set of fixing bolt has backing plate 10；
The experiment hammer 1 is set the end that the fixing sleeve 20 on balancing pole is mounted in balancing pole, is set on fixing sleeve 20
It is equipped with clamping screw 14 for fixing；
The mandril 16 is the hollow structure for the upper end opening being made of shell 161, through fixed plate inside shell 161
162 are equipped with spring 163, and the upper end of spring stretches out the ball 164 of shell upper oral part equipped with top, constitutes the buffering knot of mandril
Structure；
Supporting rack 12 is housed on the bottom plate 6, wheel shaft 17 is housed on supporting rack, cam is on wheel shaft, and the one of wheel shaft
End is equipped with the handle 13 for controlling its rotation；
3 lower part of slide bar is sleeved in upright post sleeve 4, is coated with for the tight of fixed slip bar on the side wall of upright post sleeve 4
Fixing bolt 5 constitutes slide bar and vertically slides and fixed bascule.
The service condition of the utility model is, before test, folder 8 is fixed on the solid and reliable gold of generator end first
Belong on component 11 that (under normal circumstances, generator bottom end cover presss from both sides folder away from tested bar apart from proper and solid and reliable
Hold here), then experiment hammer is fixed on the fixing sleeve of balancing pole one end, swinging handle makes cam turn clockwise
It is dynamic, after ball is pressed into the shell of mandril completely, sliding bar is adjusted, experiment is made to hammer tup exactly in contact with into shape to being tapped object
On upper previously selected beating point, after adjusting slide bar by this requirement, you can be ready for testing.When starting experiment, by shaking
Fixed handle, makes to be fixed on cam and rotates clockwise, when the arc block of balancing pole, experiment hammer are gradually streaked in the tip of cam upper ejector pin
Kinetic energy gradually increases, and when experiment hammer kinetic energy reaches maximum, arc block is streaked at the tip of mandril just, and experiment hammer is by effect of inertia
Continue counterclockwise movement, taps testee, gradually leave arc block with the tip of pushing rod, balancing pole is by resetting spring pulling force
Effect rotates clockwise, and experiment hammer rises, and primary effective hammer action is completed, and compared with prior art, this practicality is new
Type has the following advantages：
1, by adjusting slide bar height, the test being adapted under various generator end structures；
Direction phase when can ensure continuously to tap when 2, controlling handle and shake the i.e. changeable percussion power degree of speed, and tapping
Together, beating point is identical, and dynamics is stablized, crisp when dropping hammer, and is not adhered testee, it is thus possible to be obviously improved modal test
The quality of force signal in the process；
3, test period is greatly shortened, the labor intensity of tester is reduced.
Claims (6)
1. a kind of automatic knocking device of Generator Stator Winding Ends modal test force snesor, including bottom plate and experiment are hammered into shape,
It is characterized in that, being provided with vertical upright post sleeve (4) on bottom plate (6), it is equipped on upright post sleeve (4) and vertically moves and fix
Slide bar (3), through balancing pole (2) of the shaft (19) equipped with rotation, one end lower part of balancing pole is provided with downwards for the top of slide bar
The arc block (18) of protrusion, arc block (18) lower section are provided with the cam (15) that its rotation is controlled by handle, cam on pedestal
On have a mandril (16) corresponding with arc block (18), cam (15) is between slide bar equipped with being connected with bottom plate on balancing pole
Resetting spring (7), the other end of balancing pole is equipped with experiment hammer (1).
2. the automatic knocking device of Generator Stator Winding Ends modal test force snesor according to claim 1,
It is characterized in that, the folder (8) for fixing bottom plate is provided on the bottom plate.
3. the automatic knocking device of Generator Stator Winding Ends modal test force snesor according to claim 1,
It is characterized in that, experiment hammer (1) is set the end that the fixing sleeve (20) on balancing pole is mounted in balancing pole.
4. the automatic knocking device of Generator Stator Winding Ends modal test force snesor according to claim 1,
It is characterized in that, the mandril (16) is the hollow structure for the upper end opening being made of shell (161), and shell (161) is internal
Spring (163) is housed through fixed plate (162), the upper end of spring stretches out the ball (164) of shell upper oral part equipped with top, constitutes
The buffer structure of mandril.
5. the automatic knocking device of Generator Stator Winding Ends modal test force snesor according to claim 1,
It is characterized in that, supporting rack (12) is housed on the bottom plate (6), wheel shaft (17) is housed on supporting rack, cam is on wheel shaft, wheel
One end of axis is equipped with the handle (13) for controlling its rotation.
6. the automatic knocking device of Generator Stator Winding Ends modal test force snesor according to claim 1,
It is characterized in that, the slide bar (3) lower part is sleeved in upright post sleeve (4), is coated on the side wall of upright post sleeve (4) and is slided for fixed
The fastening bolt (5) of bar constitutes slide bar and vertically slides and fixed bascule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820226086.3U CN207816554U (en) | 2018-02-08 | 2018-02-08 | The automatic knocking device of Generator Stator Winding Ends modal test force snesor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820226086.3U CN207816554U (en) | 2018-02-08 | 2018-02-08 | The automatic knocking device of Generator Stator Winding Ends modal test force snesor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207816554U true CN207816554U (en) | 2018-09-04 |
Family
ID=63320916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820226086.3U Expired - Fee Related CN207816554U (en) | 2018-02-08 | 2018-02-08 | The automatic knocking device of Generator Stator Winding Ends modal test force snesor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207816554U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501351A (en) * | 2018-10-31 | 2019-03-22 | 穆崇虎 | A kind of beans piece press |
| CN110208117A (en) * | 2019-04-29 | 2019-09-06 | 国网内蒙古东部电力有限公司电力科学研究院 | Large-scale phase modifier stator winding end dynamic analysis hammering device, system and method |
| CN110850537A (en) * | 2019-11-14 | 2020-02-28 | 广州供电局有限公司 | Optical cable oscillation device |
| CN111958763A (en) * | 2020-06-30 | 2020-11-20 | 安徽省蒙城县红海新型建材有限公司 | Forming die of sound-insulation and heat-preservation hollow brick |
| CN112254980A (en) * | 2020-10-09 | 2021-01-22 | 石秀兰 | Bicycle front fork strength detection device and detection method |
| CN114002532A (en) * | 2021-11-01 | 2022-02-01 | 南方电网调峰调频发电有限公司检修试验分公司 | Method for judging insulation thermomechanical degradation of VPI (vacuum vapor pressure insulated) bar of pumped storage generator motor |
| CN116448360A (en) * | 2023-03-20 | 2023-07-18 | 南京宁太电气有限公司 | Vibration detection device and detection method for power transmission tower |
-
2018
- 2018-02-08 CN CN201820226086.3U patent/CN207816554U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501351A (en) * | 2018-10-31 | 2019-03-22 | 穆崇虎 | A kind of beans piece press |
| CN109501351B (en) * | 2018-10-31 | 2020-10-23 | 穆崇虎 | Bean tablet pressing machine |
| CN110208117A (en) * | 2019-04-29 | 2019-09-06 | 国网内蒙古东部电力有限公司电力科学研究院 | Large-scale phase modifier stator winding end dynamic analysis hammering device, system and method |
| CN110208117B (en) * | 2019-04-29 | 2022-03-18 | 国网内蒙古东部电力有限公司电力科学研究院 | Hammering device, system and method for analyzing dynamic characteristics of stator winding end part of large phase modulator |
| CN110850537A (en) * | 2019-11-14 | 2020-02-28 | 广州供电局有限公司 | Optical cable oscillation device |
| CN111958763A (en) * | 2020-06-30 | 2020-11-20 | 安徽省蒙城县红海新型建材有限公司 | Forming die of sound-insulation and heat-preservation hollow brick |
| CN112254980A (en) * | 2020-10-09 | 2021-01-22 | 石秀兰 | Bicycle front fork strength detection device and detection method |
| CN114002532A (en) * | 2021-11-01 | 2022-02-01 | 南方电网调峰调频发电有限公司检修试验分公司 | Method for judging insulation thermomechanical degradation of VPI (vacuum vapor pressure insulated) bar of pumped storage generator motor |
| CN114002532B (en) * | 2021-11-01 | 2022-11-29 | 南方电网调峰调频发电有限公司检修试验分公司 | Method for judging insulation thermomechanical degradation of VPI (vacuum vapor pressure insulated) bar of pumped storage generator motor |
| US11892496B1 (en) | 2021-11-01 | 2024-02-06 | Csg Power Generation Co., Ltd. Maintenance And Test Company | Method for determining insulation thermomechanical deterioration of VPI wire rod of pumped storage power generation motor |
| CN116448360A (en) * | 2023-03-20 | 2023-07-18 | 南京宁太电气有限公司 | Vibration detection device and detection method for power transmission tower |
| CN116448360B (en) * | 2023-03-20 | 2024-04-02 | 南京宁太电气有限公司 | Vibration detection device and detection method for power transmission tower |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207816554U (en) | The automatic knocking device of Generator Stator Winding Ends modal test force snesor | |
| CN204286801U (en) | Gas distribution phase of engine measurement mechanism | |
| CN102607970B (en) | Device for taking impact test of freely falling body | |
| CN206505166U (en) | A kind of automatic test suite | |
| CN207215613U (en) | A kind of Charpy impact device | |
| CN104315956B (en) | Aero-engine vector spout load state height measuring device and measuring method | |
| CN208704929U (en) | It is a kind of for testing the device of wind power bearing torsion | |
| CN107340047A (en) | A kind of weighing apparatus detection, demarcation counterweight | |
| CN207408111U (en) | Freeze impact tester | |
| CN207730576U (en) | Build concrete crush test machine | |
| CN204639578U (en) | Bell housing and bent axle axiality guiding mechanism | |
| CN107179157A (en) | A kind of measurement apparatus of revolving body rotary inertia | |
| CN210154945U (en) | Antistatic load test equipment | |
| CN208937246U (en) | A kind of dynamometer calibrating installation | |
| CN209802324U (en) | flatness detector | |
| CN206847933U (en) | A kind of sensing device for the test machine for testing step intensity | |
| CN205562835U (en) | Acceleration of gravity detection device | |
| CN207231345U (en) | The hole position check tool of cylinder cover | |
| CN208283307U (en) | A kind of CT the synchronous detection locator of MRI | |
| CN208288698U (en) | Firework correction detector | |
| CN207586237U (en) | A kind of portable concrete reinforcement detection portable lever | |
| CN206847897U (en) | A kind of test machine for testing step intensity | |
| CN218974050U (en) | Falling ball testing machine | |
| CN221199315U (en) | Electric power steel pipe pole mechanical strength testing arrangement | |
| JP3773082B2 (en) | Echo chip type hardness tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180904 Termination date: 20200208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |