CN205192755U - Flyweight test device - Google Patents
Flyweight test device Download PDFInfo
- Publication number
- CN205192755U CN205192755U CN201521026913.7U CN201521026913U CN205192755U CN 205192755 U CN205192755 U CN 205192755U CN 201521026913 U CN201521026913 U CN 201521026913U CN 205192755 U CN205192755 U CN 205192755U
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- flyball
- installation shaft
- motor
- flyweight
- throttle
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Abstract
The utility model relates to a test fixture especially relates to a flyweight test device, including motor, support, flyweight and the crisis rupture throttle of setting on the support, the flyweight is installed on the support through flyweight installation axle, the motor is connected with the one end of flyweight installation axle through a drive mechanism, a tachometer disc and a speed measuring probe are installed to the other end of flyweight installation axle, the last speedometer that is connected with of speed measuring probe, the position of flyweight is corresponding with the couple position of crisis rupture throttle. The utility model designs a frock that is used for testing the tripping operation of vapour turbine machinery specially adopts the motor to replace the steam turbine to simulate mechanical tripping operation, just can once only put in place when guaranteeing to take a trial run on the steam turbine, and easy operation is convenient, the observation of being convenient for to safe and reliable, and it is energy -concerving and environment -protective.
Description
Technical field
The utility model relates to a kind of test fixture, particularly relates to a kind of flyball test unit.
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.
Utility model content
The utility model is in order to solve the defect and deficiency that exist in above-mentioned prior art, providing one can replace steam turbine to carry out analog mechanical tripping operation by motor, ensure steam turbine just can disposablely put in place during test run, simple to operation, be convenient to observe, thus safe and reliable, and the flyball test unit of energy-conserving and environment-protective.
The technical solution of the utility model: 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 utility model 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 utility model 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 utility model 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 utility model;
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 utility model is described in further detail, but is not the restriction to the utility model protection domain.
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 utility model: 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 utility model 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 (7)
1. a flyball test unit; it is characterized in that: it comprises motor, support, be arranged on flyball on support and crisis fractures throttle; 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 fracture hook position of throttle of position and the crisis of described flyball is corresponding.
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, is characterized in that: described flyball is arranged on the middle part of flyball installation shaft, and the described crisis throttle that fractures 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; fracture throttle and top board of described crisis is fastenedly connected by the hexagon socket cap head screw of M10*35, and crisis fractures, throttle 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521026913.7U CN205192755U (en) | 2015-12-12 | 2015-12-12 | Flyweight test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521026913.7U CN205192755U (en) | 2015-12-12 | 2015-12-12 | Flyweight test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205192755U true CN205192755U (en) | 2016-04-27 |
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ID=55785734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521026913.7U Active CN205192755U (en) | 2015-12-12 | 2015-12-12 | Flyweight test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205192755U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424368A (en) * | 2015-12-12 | 2016-03-23 | 浙江杰特优动力机械有限公司 | Fly ball test apparatus and test 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 |
-
2015
- 2015-12-12 CN CN201521026913.7U patent/CN205192755U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424368A (en) * | 2015-12-12 | 2016-03-23 | 浙江杰特优动力机械有限公司 | Fly ball test apparatus and test method thereof |
| CN105424368B (en) * | 2015-12-12 | 2018-07-10 | 浙江杰特优动力机械有限公司 | A kind of flyball experimental rig and its 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 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |