CN207363829U - A kind of wind power generating set high speed shaft axial displacement and play monitoring device - Google Patents
A kind of wind power generating set high speed shaft axial displacement and play monitoring device Download PDFInfo
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- CN207363829U CN207363829U CN201721341561.3U CN201721341561U CN207363829U CN 207363829 U CN207363829 U CN 207363829U CN 201721341561 U CN201721341561 U CN 201721341561U CN 207363829 U CN207363829 U CN 207363829U
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- high speed
- speed shaft
- brake disc
- generating set
- axial displacement
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Abstract
The utility model discloses a kind of wind power generating set high speed shaft axial displacement and play monitoring device, the device includes displacement sensor, close to switch, data collection station, presence server and some live browsers, displacement sensor is 2, the same side of brake disc on high speed shaft of gearbox is axially installed in respectively, and it is symmetrical arranged in high speed shaft both sides, close to switch radially installed on the outside of brake disc, data collection station is connected with displacement sensor and close to switch data respectively, and it is connected with presence server by network data, live browser is connected with presence server by network data.The utility model can realize the axial displacement of on-line measurement brake disc and the play waveform of brake disc, the amplitude of display waveform, phase and frequency component, can find the initial failure of bearing in time, while the main shaft that diagnosable generator shaft and gearbox shaft occur misaligns failure.
Description
Technical field
It the utility model is related to technical field of wind power generation, and in particular to a kind of wind power generating set high speed shaft axial displacement
With play monitoring device.
Background technology
Gear-box is an important mechanical transmission component in wind power generating set, its function is to make wind wheel in wind-force
Generator is passed to lower caused power.In order to efficiently catch wind energy and it effectively be changed into wind-force, gear-box
Gearratio substantially 1:More than 100.Due to engine interior narrow space, gear-box is generally configured to primary planet wheel and adds
The structure of 1~2 grade of parallel-axes gears transmission.The features such as helical gear is because of stable drive, shock and vibration and smaller noise, is adapted to work
Make, in high-speed overload occasion, widely to be used in the gear box designs of wind-driven generator.But itself helical gear spy
Point, inevitably produces axial force during operation, and therefore, manufacturer usually increases a radial thrust in gear shaft
Bearing is used for balancing axial thrust.
In the longtime running of gear-box, radial-thrust bearing may because of insufficient lubrication, Bearing Temperature or
The reason hydraulic performance declines such as long-term shock loading, start to reflect that thrust dead point is deviated to some direction, operational process clearance is bigger than normal；Such as
Fruit finds that would develop into radial-thrust bearing thoroughly damages not in time, and gear shaft vertically significantly lead by play, face portion contact
Cause stress excessive and collapse tooth；If gear shaft is used as output shaft at this time, the rotatable parts on output shaft are it is possible that sound portion
The friction of part, causes further to lose.
The high speed shaft of wind-driven generator group wheel box is attached as output shaft with generating set by flexible coupling,
An acceleration sensor is usually installed in the axial location of the output shaft bearing annex casing of gear-box by gear-box manufacturer at present,
For the monitoring to high speed shaft axial float.But this mode still has problems with：1) in radial-thrust bearing, there are portion
When dividing failure of removal, movement clearance increase, axial float cannot be really reacted in the casing vibration of gear-box；2) vibration adds
What speed reflected is the size of axial collapse power, embodies the inducement of axial float, but cannot reflect the actual journey of axial float failure
Degree；3) high speed axial displacement cannot be measured, and the exceeded of high speed shaft axial displacement is exactly the failure damage of reflection radial-thrust bearing
Positive evidence.
Utility model content
The purpose of this utility model is to provide such a wind-driven generator group wheel box high speed shaft axial displacement and play
On-Line Monitor Device.
The utility model is to reach above-mentioned purpose, is achieved especially by following technical scheme：
A kind of wind power generating set high speed shaft axial displacement and play monitoring device, the device include displacement sensor, connect
Nearly switch, data collection station, presence server and some live browsers, displacement sensor are 2, axial restraint installation respectively
The same side of brake disc on high speed shaft of gearbox, and be symmetrical arranged in high speed shaft both sides, it is installed on close to switch outside brake disc
Side, data collection station are connected with displacement sensor and close to Switch Communication respectively, and are connected with presence server by network data
Connect, live browser is connected with presence server by network data.
Further, displacement sensor is fixed by the bracket on gearbox-case, and stent is located at high speed shaft brake
The same side of disk is simultaneously symmetrical arranged in high speed shaft both sides.
Further, displacement sensor is directed toward high-speed shaft brake disc plane.
Further, displacement sensor uses non-contact electric eddy shift sensor.
Further, close to switch using the close switch of Hall-type.
By using the technical solution of the utility model, it can be achieved that the axial displacement of on-line measurement brake disc, and intuitively show
Show radial-thrust bearing failure, prompt the timely maintenance down of user, avoid gear-box internal gear and since high speed shaft turns round
Cause the badly damaged of gear-box external component；On the other hand, the utility model can also on-line measurement brake disc play waveform,
The amplitude of display waveform, phase and frequency component can find the initial failure of bearing in time, at the same diagnosable generator shaft and
The main shaft that gearbox shaft occurs misaligns failure.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model.
In figure, 1, displacement sensor；2nd, close to switch；3rd, data collection station；4th, presence server；5th, live browser；
6th, gear-box；61st, high speed shaft；62nd, brake disc；7th, generating set；8th, shaft coupling.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the high speed shaft 61 of wind-driven generator group wheel box 6 passes through flexibility as output shaft with generating set 7
Shaft coupling 8 is attached, a kind of wind power generating set high speed shaft axial displacement of the utility model and play monitoring device in figure,
The device includes displacement sensor 1, close switch 2, data collection station 3, presence server 4 and some live browsers 5.Its
In, displacement sensor 1 is 2, it is preferable that displacement sensor 1 uses non-contact electric eddy shift sensor, axial solid respectively
Dingan County is symmetrical arranged, displacement sensor 1 mounted in the same side of brake disc 62 on high speed shaft of gearbox 61 in 61 both sides of high speed shaft
It is directed toward 62 plane of high-speed shaft brake disc.Preferably, displacement sensor 1 is fixed by the bracket on 6 body of gear-box, stent position
It is symmetrical arranged in the same side of brake disc 62 on high speed shaft 61, and in 62 both sides of high speed shaft.
Be installed on the outside of brake disc 62 close to switch 2, can radially installed in the outside of brake disc 62, can also be installed on brake
On the high speed shaft tachometric survey disk of disk, for measuring the rotating speed of high speed shaft 61, it is preferable that approached close to switch 2 using Hall-type
Switch.Data collection station 3 is provided with displacement sensor 1 and close to 2 data connections of switch, data collection station 3 to sensor respectively
Power supply, and the analog signal of sensor output is gathered in real time, analog-to-digital conversion is completed, and further to data working process.Number
It is connected by network data with presence server 4 according to acquisition station 3, is passed in particular by wind field internal network to presence server 4
Delivery data.Presence server is used to store 61 axial displacement of high speed shaft and play data, live browser 5 and presence server 4
Connected by network data, the IP address of phenomenon server is accessed in particular by IE, browsed 61 axial displacement of high speed shaft and alter
Dynamic real time data and historical data.
The utility model data processing and fault identification mode are the direct current portion for the signal that 2 displacement sensors 1 export
Divide, represent the axial displacement of 62 the right and left of brake disc.If the axial displacement on both sides exceedes the permissible value of setting, then it represents that footpath
Axial thrust bearing has damaged, and unit should maintenance down as early as possible；If the axial displacement change numerical value on both sides is unequal, explanation
High speed shaft deviate from original axial location.
The AC portion for the signal that 2 displacement sensors 1 export, the play of 62 the right and left of brake disc when representing operation
Value.The play value of two passages in left and right is gathered according to identical sampling frequency synchronization, the oscillogram of the two passages can be drawn；
Normal this 2 waveforms of situation should be same amplitude, same phase and with 61 same frequency of high speed shaft, if amplitude and phase
Inconsistent, then illustrate the generation of high speed shaft 61 is not parallel play；To Wave data carry out FFT, obtain frequency content, mainly into
It point should be 1 frequency multiplication with 61 rotating speed of high speed shaft with frequency, if there is 2 frequencys multiplication, then illustrate that generator shaft and 6 axis of gear-box occur
Shaft misalignment, when actual motion, can observe the Change and Development of 2 frequencys multiplication with emphasis.
The utility model can realize the axial displacement of on-line measurement brake disc 62, and intuitively show radial-thrust bearing event
Barrier, prompts the timely maintenance down of user, avoids 6 internal gear of gear-box and since the revolution of high speed shaft 61 is caused outside gear-box 6
Portion's component it is badly damaged；On the other hand, the utility model can also on-line measurement brake disc 62 play waveform, display waveform
Amplitude, phase and frequency component, can find the initial failure of the initial failure, especially radially thrust bearing of bearing in time,
The main shaft that diagnosable generator shaft and gearbox shaft occur at the same time misaligns failure.
The specific embodiment of the utility model is only the explanation to the utility model, it is not to the utility model
Limitation, those skilled in the art as needed can make the present embodiment without creative tribute after this specification is read
The modification offered, but as long as all being protected in the right of the utility model be subject to Patent Law.
Claims (5)
1. a kind of wind power generating set high speed shaft axial displacement and play monitoring device, it is characterised in that the device includes displacement
Sensor (1), close switch (2), data collection station (3), presence server (4) and some live browsers (5), displacement sensing
Device is 2, is axially installed in the same side of brake disc (62) on high speed shaft of gearbox (61) respectively, and in high speed shaft both sides
Be symmetrical arranged, close to switch be installed on brake disc on the outside of, for measure brake disk rotating speed, data collection station respectively with displacement sensing
Device is connected with close to Switch Communication, and is connected with presence server by network data, and live browser leads to presence server
Cross network data connection.
2. wind power generating set high speed shaft axial displacement according to claim 1 and play monitoring device, it is characterised in that
Displacement sensor is fixed by the bracket on gear-box (6) shell, stent be located at the same side of high-speed shaft brake disc and
High speed shaft both sides are symmetrical arranged.
3. wind power generating set high speed shaft axial displacement according to claim 1 and play monitoring device, it is characterised in that
Displacement sensor is directed toward high-speed shaft brake disc plane.
4. wind power generating set high speed shaft axial displacement according to claim 1 and play monitoring device, it is characterised in that
Displacement sensor uses non-contact electric eddy shift sensor.
5. wind power generating set high speed shaft axial displacement according to claim 1 and play monitoring device, it is characterised in that
Close to switch using the close switch of Hall-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721341561.3U CN207363829U (en) | 2017-10-18 | 2017-10-18 | A kind of wind power generating set high speed shaft axial displacement and play monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721341561.3U CN207363829U (en) | 2017-10-18 | 2017-10-18 | A kind of wind power generating set high speed shaft axial displacement and play monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207363829U true CN207363829U (en) | 2018-05-15 |
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ID=62419562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721341561.3U Active CN207363829U (en) | 2017-10-18 | 2017-10-18 | A kind of wind power generating set high speed shaft axial displacement and play monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207363829U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357647A (en) * | 2018-09-29 | 2019-02-19 | 观为监测技术无锡股份有限公司 | A kind of wind power equipment positioning monitoring system and method |
| CN115900517A (en) * | 2022-11-14 | 2023-04-04 | 哈尔滨理工大学 | Device and method for detecting motor spindle movement through concave-convex square groove |
-
2017
- 2017-10-18 CN CN201721341561.3U patent/CN207363829U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357647A (en) * | 2018-09-29 | 2019-02-19 | 观为监测技术无锡股份有限公司 | A kind of wind power equipment positioning monitoring system and method |
| CN109357647B (en) * | 2018-09-29 | 2024-05-24 | 观为监测技术无锡股份有限公司 | Wind power equipment positioning monitoring system and method |
| CN115900517A (en) * | 2022-11-14 | 2023-04-04 | 哈尔滨理工大学 | Device and method for detecting motor spindle movement through concave-convex square groove |
| CN115900517B (en) * | 2022-11-14 | 2023-07-14 | 哈尔滨理工大学 | Device and method for detecting motor spindle movement through concave-convex square groove |
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