CN105424368A - Fly ball test apparatus and test method thereof - Google Patents
Fly ball test apparatus and test method thereof Download PDFInfo
- Publication number
- CN105424368A CN105424368A CN201510915127.0A CN201510915127A CN105424368A CN 105424368 A CN105424368 A CN 105424368A CN 201510915127 A CN201510915127 A CN 201510915127A CN 105424368 A CN105424368 A CN 105424368A
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- flyball
- installation shaft
- motor
- test
- rotating speed
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- 238000012360 testing method Methods 0.000 title claims abstract description 40
- 238000010998 test method Methods 0.000 title claims abstract description 10
- 238000009434 installation Methods 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 239000000523 sample Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 4
- 235000007340 Hordeum vulgare Nutrition 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 240000005979 Hordeum vulgare Species 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract 3
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 241000209219 Hordeum Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a test tooling and especially relates to a fly ball test apparatus and a test method thereof. The apparatus comprises a motor, a support, a fly ball arranged on the support and a crisis breaking throttle. The fly ball is installed on the support through a fly ball installation shaft. The motor is connected to one end of the fly ball installation shaft through a transmission mechanism. The other end of the fly ball installation shaft is provided with a velocity measurement disc and a velocity measurement probe. The velocity measurement probe is connected to a revolution meter. A position of the fly ball corresponds to a hook position of the crisis breaking throttle. In the invention, the tooling specially used for testing mechanical tripping of a steam turbine is designed; the motor is used to substitute the steam turbine to simulate mechanical tripping so that test run on the steam turbine can be guaranteed to be successful; operation is easy and convenient; observation is convenient; the apparatus and the method are safe and reliable, and energy saving and environmental protection are achieved.
Description
Technical field
The present invention relates to a kind of test fixture, particularly relate to a kind of flyball test unit and test method thereof.
Background technology
At present, steam turbine mechanical trip generally direct adopt on steam turbine steam or electricity etc. test as power source, energy loss is larger with waste, and due to structure and oil circuit complexity, therefore adjustment is got up very inconvenient, substantially increases operation easier and the experimentation cost of mechanical trip test.
Summary of the invention
The present invention, in order to solve the defect and deficiency that exist in above-mentioned prior art, provides one
Steam turbine can be replaced to carry out analog mechanical tripping operation by motor, just can disposablely put in place when ensureing test run on steam turbine, simple to operation, be convenient to observe, thus safe and reliable, and the flyball test unit of energy-conserving and environment-protective and test method thereof.
Technical scheme of the present invention: a kind of flyball test unit, comprise motor, support, be arranged on flyball on support and emergency governor pilot valve, described flyball is rack-mount by a flyball installation shaft, described motor is connected with one end of flyball installation shaft by a gear train, the other end of described flyball installation shaft is provided with a tachometer disc and a holes probe, described holes probe is connected with a tachometer gage, the position of described flyball is corresponding with the hook position of emergency governor pilot valve.
The present invention devises the frock that is specifically designed to test steam turbine mechanical trip, adopts motor to replace steam turbine to carry out analog mechanical tripping operation, just can disposablely put in place when ensureing test run on steam turbine, simple to operation, be convenient to observe, thus safe and reliable, and energy-conserving and environment-protective.
Preferably, described gear train comprises a transmission shaft and a driving belt, and described rotation axis one end is connected with the rotating shaft of motor by driving belt, and the other end of rotation axis is fastenedly connected by one end of a terminal pad and flyball installation shaft.
This kind of structure makes motor more steadily reliable rotational power and rotating speed can be passed to flyball installation shaft, makes test more precisely reliable.
Preferably, described flyball is arranged on the middle part of flyball installation shaft, and described emergency governor pilot valve is arranged on cradle top centre position.
This kind of structure makes its one-piece construction more solid and reliable, and clashes into the hook of emergency governor pilot valve accurately when facilitating the installation of flyball and flyball to fly out.
Preferably, described motor is connected with a frequency converter, described frequency converter is connected with a potentiometer.
The present invention adopts potentiometer and frequency converter to control the rotating speed of motor, makes its test more precisely reliable.
Preferably, described support comprises top board, base plate and is arranged on four support columns between top board and base plate, described emergency governor pilot valve and top board are fastenedly connected by the hexagon socket cap head screw of M10*35, and emergency governor pilot valve and top board faying face scribble fluid sealant or be lined with highland barley paper.
This kind of structure makes support one-piece construction more solid and reliable, and makes the sealing property of emergency governor pilot valve better, can reduce simultaneously and beat.Ensure that bearing can not shake when high rotating speed.
Preferably, described terminal pad side is provided with the connecting hole coordinating end part of driving shaft, the end of transmission shaft is penetrated in connecting hole and is fastenedly connected by hexagonal cone end holding screw and terminal pad in a M5*25, and described terminal pad opposite side is fastenedly connected by the hexagon socket cap head screw of two M10*25 and flyball installation shaft.
This kind of structure makes the connection of transmission shaft and flyball installation shaft more solid and reliable, thus makes its rotation more reliable and more stable, and test is more precisely reliable.
Preferably, flyball installation shaft end is equipped with NJ profile shaft and is held.
This kind of structure can make flyball when High Rotation Speed (8000-12000r/min), avoids fricative temperature, burns out shaft coupling, thus make the shaft coupling life-span more reliable and more stable, and test is more precisely reliable.
Preferably, tachometer disc end is equipped with top.
This kind of structure can make axle, flyball, top, and shaft coupling coexists on a center line, whole axle will be made to occur beating because elongation end is unfixing.Thus ensure that the reliability of flyball action.
Preferably, this device also comprises the sensor be connected with tachometer disc.
This kind of structure received by sensor with door rejection gate signal, pass to tachometer gage, intelligent display, easy to operate, observe simple.Flyball operating point can well be caught for inspector.
A test method for flyball test unit, comprises the steps:
1) rotating speed of motor passes to transmission shaft by driving belt;
2) then transmission shaft drives flyball installation shaft to rotate;
3) after the rotating speed of flyball installation shaft reaches setting speed, flyball flies out, and clashes into crisis and to fracture the hook of throttle, cause emergency governor pilot valve draining, thus reach test objective.
Preferably, in step 1), the rotating speed of motor is controlled by following method: the signal that potentiometer provides 0 ~ 10V controls frequency converter work, and frequency converter provides 0 ~ 10V, the rotating speed lifting of the signal control motor of 0 ~ 50HZ.
Preferably, in step 3), by tachometer disc, holes probe detects that the rotating speed of flyball installation shaft passes to tachometer gage, and tachometer gage shows current rotating speed, is convenient to observe rotating speed when flyball flies out.
The present invention devises the frock that is specifically designed to test steam turbine mechanical trip, adopts motor to replace steam turbine to carry out analog mechanical tripping operation, just can disposablely put in place when ensureing test run on steam turbine, simple to operation, be convenient to observe, thus safe and reliable, and energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
1. potentiometers, 2. frequency converter, 3. motor in figure; 4. driving belt, 5. transmission shaft, 6. crisis fractures throttle; 7. support, 8. flyball installation shaft, 9. tachometer disc; 10. holes probe, 11. tachometer gages, 12. terminal pads; 13. connecting holes, the interior hexagonal cone end holding screw of 14.M5*25, the hexagon socket cap head screw of 15.M10*25; the hexagon socket cap head screw of 16.M10*35,17. flyballs.
Embodiment
Below in conjunction with accompanying drawing and principle of work, the present invention is further detailed explanation, but be not limiting the scope of the invention.
As shown in Figure 1, a kind of flyball test unit, comprise motor 3, support 7, be arranged on flyball 17 on support 7 and emergency governor pilot valve 6, flyball 17 is arranged on support 7 by a flyball installation shaft 8, motor 3 is connected with one end of flyball installation shaft 8 by a gear train, the other end of flyball installation shaft 8 is provided with tachometer disc 9 and a holes probe 10, and holes probe 10 is connected with a tachometer gage 11, the position of flyball 17 is corresponding with the hook position of emergency governor pilot valve 6.Gear train comprises transmission shaft 5 and a driving belt 4, and rotation axis 5 one end is connected with the rotating shaft of motor 3 by driving belt 4, and the other end of rotation axis 5 is fastenedly connected with one end of flyball installation shaft 8 by a terminal pad 12.Flyball 17 is arranged on the middle part of flyball installation shaft 8, and the crisis throttle 6 that fractures is arranged on support 7 crown center position.Motor 3 is connected with a frequency converter 2, frequency converter 2 is connected with a potentiometer 1.Support 7 comprises top board, base plate and is arranged on four support columns between top board and base plate; the anxious throttle 6 that fractures that hides is fastenedly connected by the hexagon socket cap head screw 16 of M10*35 with top board, and crisis fractures, throttle 6 and top board faying face scribble fluid sealant or be lined with highland barley paper.Terminal pad 12 side is provided with the connecting hole 13 coordinating transmission shaft 5 end, the end of transmission shaft 5 is penetrated in connecting hole 13 and is fastenedly connected with terminal pad 12 by hexagonal cone end holding screw 14 in a M5*25, and terminal pad 12 opposite side is fastenedly connected with flyball installation shaft 8 by the hexagon socket cap head screw 15 of two M10*25.
A test method for flyball test unit, comprises the steps:
4) rotating speed of motor passes to transmission shaft by driving belt;
5) then transmission shaft drives flyball installation shaft to rotate;
6) after the rotating speed of flyball installation shaft reaches setting speed, flyball flies out, and clashes into crisis and to fracture the hook of throttle, cause the critical throttle draining that fractures, thus reach test objective.
In step 1), the rotating speed of motor is controlled by following method: the signal that potentiometer provides 0 ~ 10V controls frequency converter work, and frequency converter provides 0 ~ 10V, the rotating speed lifting of the signal control motor of 0 ~ 50HZ.
In step 3), by tachometer disc, holes probe detects that the rotating speed of flyball installation shaft passes to tachometer gage, and tachometer gage shows current rotating speed, is convenient to observe rotating speed when flyball flies out.
Principle of work of the present invention: the signal that potentiometer provides 0 ~ 10V controls frequency converter, frequency converter provides 0 ~ 10V, the rotating speed lifting of the signal control motor of 0 ~ 50HZ, the rotating speed of motor passes to transmission shaft by driving belt, then transmission shaft drives flyball installation shaft to rotate, after reaching setting speed, flyball flies out, clash into the hook of emergency governor pilot valve, cause the critical throttle draining that fractures, thus reach test objective, in the other end of flyball installation shaft, a tachometer disc and holes probe are installed in addition, by tachometer disc, holes probe detects that the rotating speed of flyball installation shaft passes to tachometer gage, tachometer gage shows current rotating speed, be convenient to observe, rotating speed when flyball flies out.
The present invention devises the frock that is specifically designed to test steam turbine mechanical trip, adopts motor to replace steam turbine to carry out analog mechanical tripping operation, just can disposablely put in place when ensureing test run on steam turbine, simple to operation, be convenient to observe, thus safe and reliable, and energy-conserving and environment-protective.
Claims (10)
1. a flyball test unit, it is characterized in that: it comprises motor, support, is arranged on flyball on support and emergency governor pilot valve, described flyball is rack-mount by a flyball installation shaft, described motor is connected with one end of flyball installation shaft by a gear train, the other end of described flyball installation shaft is provided with a tachometer disc and a holes probe, described holes probe is connected with a tachometer gage, the position of described flyball is corresponding with the hook position of emergency governor pilot valve.
2. a kind of flyball test unit according to claim 1, it is characterized in that: described gear train comprises a transmission shaft and a driving belt, described rotation axis one end is connected with the rotating shaft of motor by driving belt, and the other end of rotation axis is fastenedly connected by one end of a terminal pad and flyball installation shaft.
3. a kind of flyball test unit according to claim 2, it is characterized in that: described flyball is arranged on the middle part of flyball installation shaft, described emergency governor pilot valve is arranged on cradle top centre position.
4. a kind of flyball test unit according to claim 3, is characterized in that: described motor is connected with a frequency converter, described frequency converter is connected with a potentiometer.
5. a kind of flyball test unit according to claim 4, it is characterized in that: described support comprises top board, base plate and is arranged on four support columns between top board and base plate, described emergency governor pilot valve and top board are fastenedly connected by the hexagon socket cap head screw of M10*35, and emergency governor pilot valve and top board faying face scribble fluid sealant or be lined with highland barley paper.
6. a kind of flyball test unit according to claim 1, it is characterized in that: described terminal pad side is provided with the connecting hole coordinating end part of driving shaft, the end of transmission shaft is penetrated in connecting hole and is fastenedly connected by hexagonal cone end holding screw and terminal pad in a M5*25, and described terminal pad opposite side is fastenedly connected by the hexagon socket cap head screw of two M10*25 and flyball installation shaft.
7. a kind of flyball test unit according to claim 1, is characterized in that: described flyball installation shaft end is equipped with NJ profile shaft and is held, and described tachometer disc end is equipped with top, and this device also comprises the sensor that tachometer disc is connected.
8. the test method of a kind of flyball test unit according to claim 1, is characterized in that: it comprises the steps:
1) rotating speed of motor passes to transmission shaft by driving belt;
2) then transmission shaft drives flyball installation shaft to rotate;
3) after the rotating speed of flyball installation shaft reaches setting speed, flyball flies out, and clashes into the hook of emergency governor pilot valve, causes the critical throttle draining that fractures, thus reach test objective.
9. the test method of a kind of flyball test unit according to claim 8, it is characterized in that: in step 1), the rotating speed of motor is controlled by following method: the signal that potentiometer provides 0 ~ 10V controls frequency converter work, frequency converter provides 0 ~ 10V, the rotating speed lifting of the signal control motor of 0 ~ 50HZ.
10. the test method of a kind of flyball test unit according to claim 8, it is characterized in that: in step 3), by tachometer disc, holes probe detects that the rotating speed of flyball installation shaft passes to tachometer gage, tachometer gage shows current rotating speed, is convenient to observe rotating speed when flyball flies out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510915127.0A CN105424368B (en) | 2015-12-12 | 2015-12-12 | A kind of flyball experimental rig and its test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510915127.0A CN105424368B (en) | 2015-12-12 | 2015-12-12 | A kind of flyball experimental rig and its test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105424368A true CN105424368A (en) | 2016-03-23 |
| CN105424368B CN105424368B (en) | 2018-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510915127.0A Active CN105424368B (en) | 2015-12-12 | 2015-12-12 | A kind of flyball experimental rig and its test method |
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| Country | Link |
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| CN (1) | CN105424368B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928709A (en) * | 2016-04-22 | 2016-09-07 | 大唐东北电力试验研究所有限公司 | Steam turbine set emergency governor test device |
| CN107314903A (en) * | 2017-08-18 | 2017-11-03 | 嘉利特荏原泵业有限公司 | Steam turbine dropout body overspeed trip analogue means |
| CN112082743A (en) * | 2020-07-30 | 2020-12-15 | 中广核核电运营有限公司 | Overspeed protection test bed and overspeed protection test method |
| CN114215735A (en) * | 2021-12-14 | 2022-03-22 | 江苏核电有限公司 | Complete tool for regulating rotating speed of steam-driven pump of nuclear power station |
| CN114352361A (en) * | 2022-01-24 | 2022-04-15 | 重庆江增船舶重工有限公司 | Overspeed test tool for steam turbine emergency breaker assembly and use method thereof |
| CN114459741A (en) * | 2021-09-02 | 2022-05-10 | 福建福清核电有限公司 | Off-line calibration method for mechanical flyweight of pneumatic pump |
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| JPH09287409A (en) * | 1996-04-23 | 1997-11-04 | Fuji Electric Co Ltd | Oil trip test device of emergency governor for turbine |
| CN201569660U (en) * | 2009-12-18 | 2010-09-01 | 辽宁电力控制技术有限公司 | Overspeed testing platform |
| CN201780202U (en) * | 2010-08-17 | 2011-03-30 | 山东青能动力股份有限公司 | Emergency governor testing device |
| CN205192755U (en) * | 2015-12-12 | 2016-04-27 | 浙江杰特优动力机械有限公司 | Flyweight test device |
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2015
- 2015-12-12 CN CN201510915127.0A patent/CN105424368B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2178898Y (en) * | 1993-11-25 | 1994-10-05 | 张文升 | Rotational speed trends experimental stage for critical interdict apparatus |
| CN1122914A (en) * | 1994-11-11 | 1996-05-22 | 沈阳电专调节保护研究所 | Multifunction overspeed test platform |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928709A (en) * | 2016-04-22 | 2016-09-07 | 大唐东北电力试验研究所有限公司 | Steam turbine set emergency governor test device |
| CN107314903A (en) * | 2017-08-18 | 2017-11-03 | 嘉利特荏原泵业有限公司 | Steam turbine dropout body overspeed trip analogue means |
| CN112082743A (en) * | 2020-07-30 | 2020-12-15 | 中广核核电运营有限公司 | Overspeed protection test bed and overspeed protection test method |
| CN114459741A (en) * | 2021-09-02 | 2022-05-10 | 福建福清核电有限公司 | Off-line calibration method for mechanical flyweight of pneumatic pump |
| CN114215735A (en) * | 2021-12-14 | 2022-03-22 | 江苏核电有限公司 | Complete tool for regulating rotating speed of steam-driven pump of nuclear power station |
| CN114215735B (en) * | 2021-12-14 | 2024-05-10 | 江苏核电有限公司 | Complete tool for adjusting rotating speed of pneumatic pump of nuclear power station |
| CN114352361A (en) * | 2022-01-24 | 2022-04-15 | 重庆江增船舶重工有限公司 | Overspeed test tool for steam turbine emergency breaker assembly and use method thereof |
| CN114352361B (en) * | 2022-01-24 | 2023-10-27 | 重庆江增船舶重工有限公司 | Overspeed test tool for steam turbine critical breaker assembly and using method of overspeed test tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105424368B (en) | 2018-07-10 |
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Address after: Jiaxing City, Zhejiang province 310000 Chongfu town Tongxiang city Hangzhou Road No. 308 Patentee after: Zhejiang jieteyou Power Machinery Co.,Ltd. Address before: Jiaxing City, Zhejiang province 310000 Chongfu town Tongxiang city Hangzhou Road No. 308 Patentee before: ZHEJIANG JIETEYOU POWER MACHINERY Co.,Ltd. |
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Denomination of invention: A flying hammer test device and its test method Effective date of registration: 20210303 Granted publication date: 20180710 Pledgee: Bank of Hangzhou Limited by Share Ltd. Tongxiang branch Pledgor: Zhejiang jieteyou Power Machinery Co.,Ltd. Registration number: Y2021330000167 |
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Date of cancellation: 20220402 Granted publication date: 20180710 Pledgee: Bank of Hangzhou Limited by Share Ltd. Tongxiang branch Pledgor: Zhejiang jieteyou Power Machinery Co.,Ltd. Registration number: Y2021330000167 |
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Denomination of invention: A flyweight test device and its test method Effective date of registration: 20220822 Granted publication date: 20180710 Pledgee: Agricultural Bank of China Limited by Share Ltd. Tongxiang branch Pledgor: Zhejiang jieteyou Power Machinery Co.,Ltd. Registration number: Y2022980013196 |