CN206695985U - A kind of turbine vibration detecting device - Google Patents
A kind of turbine vibration detecting device Download PDFInfo
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- CN206695985U CN206695985U CN201720433384.5U CN201720433384U CN206695985U CN 206695985 U CN206695985 U CN 206695985U CN 201720433384 U CN201720433384 U CN 201720433384U CN 206695985 U CN206695985 U CN 206695985U
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- vibration
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- turbine
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Abstract
A kind of turbine vibration detecting device; belong to mechanical equipment vibration detecting system technical field; gear-box that turbine includes being connected, high speed rotor, gear and it is equipped with a pair of bearings and bearing cap in gear both sides; wherein; high speed rotor both sides are connected by bearing cap set vibration probe respectively in the gear-box; the top connection of vibration probe sets vibration measuring cable, and vibration measuring cable is drawn from gear-box and is connected with external vibration protection watch circuit；This patent conceptual design novelty, reasonable idea, simple in construction, I＆M is convenient, testing result real-time tracking and retrospect can be realized simultaneously, it is obviously improved the testing conditions of turbine, be advantageous to prevent to measure vibration glitch, improve the reliability of detecting system, unnecessary parking is avoided, ensures the normal safe operation of equipment, saves maintenance cost and use cost.
Description
Technical field
The utility model belongs to mechanical equipment vibration detecting system technical field, and in particular to a kind of suitable for turbine
Vibration detecting device.
Background technology
In turbine field, the vibration problem of high speed rotor be influence machine can long period safe handling it is decisive because
Element, particularly machine rotational speed is higher, in the case of unit bulky complex, the damages of most turbine machine parts or operation
It is unstable to be all transmitted on the main shaft to run at high speed, then showed in slave unit vibration.If in time during appearance sign
Take measures, remove a hidden danger, can protection equipment to greatest extent.For example, turbine vacuum pump shakes caused by operation process
Dynamic value increase, the originals such as destruction, impeller blade damage, sliding bearing abrasion, motor bearings damage may be balanced due to high speed rotor
Because causing, now the efficiency of equipment is difficult to ensure that in reduction, equipment performance, if more than the vibration values of setting, causes equipment fault
Parking, cause disconnected paper phenomenon.
Conventional vibration detection device, probe is screwed into from casing top, when detecting that the cylindrical vibration values of high speed rotor surpass
When crossing the scope of setting, system automatic stopping.But find that impeller, bearing are intact during maintenance usually after a stoppage, equipment
Without mechanical breakdown, equipment and can normal operation after replacing vibration probe of trying, investigated through system, be due to that casing top distance is high
Farther out, vibration detection bar has metaboly to fast rotor, causes vibration values number change big, glitch be present, causes measurement accurate
Degree reduces with confidence level, causes maintenance down to have impact on the normal operation of system by glitch.
Utility model content
The utility model is intended to provide a kind of turbine vibration detecting device technical scheme by reducing vibration probe length, realizes
Improve sensitivity to prevent to vibrate the technique effect of glitch, to overcome problems of the prior art.
A kind of described turbine vibration detecting device, gear-box that turbine includes being connected, high speed rotor, gear and match somebody with somebody
Close a pair of bearings and bearing cap for being arranged on gear both sides, it is characterised in that high speed rotor both sides pass through respectively in the gear-box
Bearing cap connection sets vibration probe, and the top connection of vibration probe sets vibration measuring cable, and vibration measuring cable is drawn simultaneously from gear-box
It is connected with external vibration protection watch circuit.
Described a kind of turbine vibration detecting device, it is characterised in that be equipped with vibration measuring cable above the side of the gear-box
Hole, vibration measuring cable are drawn from vibration measuring cable aperture.
Described a kind of turbine vibration detecting device, it is characterised in that vibration rack is fixedly installed on described bearing cap, shakes
Dynamic probe is fixedly connected on vibration rack.
A kind of described turbine vibration detecting device, it is characterised in that the gauge head of the vibration probe be equipped with bearing with
The top of high speed rotor between gear, and gap cylindrical with high speed rotor coordinates.
Described a kind of turbine vibration detecting device, it is characterised in that the vibration probe coordinates knot using external screw thread connection
Structure.
A kind of described turbine vibration detecting device, it is characterised in that the measuring point center of the vibration probe with side bearing outside
The distance of side is not more than 70mm.
A kind of described turbine vibration detecting device modern design, reasonable idea, simple in construction, I＆M is convenient, together
When can realize testing result real-time tracking and retrospect, hence it is evident that improve the testing conditions of turbine, be advantageous to prevent to measure vibration false
Signal, improve the reliability of detecting system, avoid unnecessary parking, ensure the normal safe operation of equipment, save safeguard into
Sheet and use cost.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the D-D sectional views in Fig. 1；
Fig. 3 be gear-box according to K in Fig. 1 to partial schematic diagram；
In figure：1- vibration probes, 1a- gauge heads, 2- gears, 3- vibration racks, 4- vibration measurings cable aperture, 5- gears
Case, 6- bearing caps, 7- bearings, 8- high speed rotors, 9- vibration measuring cables.
Embodiment
In conjunction with Figure of description, specific embodiment of the present utility model is described in detail：
A kind of turbine vibration detecting device as shown is, turbine includes the gear-box 5, high speed rotor 8, tooth being connected
Wheel 2 and a pair of bearings 7 and bearing cap 6 in the both sides of gear 2 are equipped with, the both sides of high speed rotor 8 are connected by bearing cap 6 respectively
Vibration probe 1 is set, and gear 2, bearing 7, bearing cap 6, vibration probe 1 are arranged in gear-box 5, and the top of vibration probe 1 connects
Connect and vibration measuring cable 9 is set, be equipped with vibration measuring cable aperture 4 above the side of gear-box 5, vibration measuring cable 9 draws from vibration measuring cable aperture 4
Go out, circuit connection is distinguished between vibration measuring cable 9 and vibration probe 1 and external vibration protection table, vibration protection table is installed on
In flat machine field operation box or instrument control case, the length of vibration measuring cable 9 is consolidated no more than 9m and when vibration measuring cable aperture 4 is drawn
It is fixed；Described vibration protection table is from eddy current sensor, 24VDC working powers, the output of 4-20mA electric currents, measurement error ＜
1% full scale, and be installed in turbine field operation box or instrument control case.The vibration branch for being secured to connection is set on bearing cap 6
Frame 3, vibration rack 3 have enough rigidity, and vibration probe 1 is fixedly attached on vibration rack 3 with nut, can effectively prevent from shaking
The dynamic deformation of probe 1, ensures the non-loosening of vibration probe 1 when turbine runs at high speed；The gauge head 1a of vibration probe 1 is located at bearing
The top of high speed rotor 8 between 7 and gear 2, and the measuring point center of vibration probe 1 is not more than with same 7 outer lateral extent of side bearing
70mm；Vibration probe 1 coordinates with 8 cylindrical gap of high speed rotor, and vibration probe 1 uses external thread structure, can pass through fixed spiral shell
The setting height(from bottom) of mother's regulation vibration probe 1, so as to adjust gauge head 1a and the cylindrical clearance distance of high speed rotor 8.
In above-described embodiment, vibration probe 1 is installed using support, treats vibration probe 1 and the cylindrical regulation of high speed rotor 8 to conjunction
After suitable clearance distance, vibration measuring cable 9 is drawn and fixed from the casing side of gear-box 5, can effectively reduce vibration probe 1
Length, avoid probe bending risk, improve detection sensitivity and reliability, while the length of vibration measuring cable 9 is controlled,
Avoid vibration measuring cable 9 is oversize from causing signal transmission unstable, cause unnecessary equipment stop jumping.
In above-described embodiment, the vibration signal gathered at vibration probe 1 reaches vibration protection table through vibration measuring cable 9,
Corresponding electric signal is converted into vibration protection table, is then delivered to each signal processing unit, such as PLC control system, DCS controls system
System etc., while realize the functions such as detection, analysis, alarm, interlocking.
Claims (6)
1. a kind of turbine vibration detecting device, turbine includes the gear-box being connected（5）, high speed rotor（8）, gear（2）And
It is equipped with gear（2）A pair of bearings of both sides（7）With bearing cap（6）, it is characterised in that the gear-box（5）Interior high speed turns
Son（8）Both sides pass through bearing cap respectively（6）Connection sets vibration probe（1）, vibration probe（1）Top connection set vibration measuring electricity
Cable（9）, vibration measuring cable（9）From gear-box（5）Draw and be connected with external vibration protection watch circuit.
A kind of 2. turbine vibration detecting device as claimed in claim 1, it is characterised in that the gear-box（5）Side above coordinate
Vibration measuring cable aperture is set（4）, vibration measuring cable（9）From vibration measuring cable aperture（4）Draw.
A kind of 3. turbine vibration detecting device as claimed in claim 1, it is characterised in that described bearing cap（6）Upper fixed setting
Vibration rack（3）, vibration probe（1）It is fixedly connected on vibration rack（3）On.
A kind of 4. turbine vibration detecting device as claimed in claim 1, it is characterised in that the vibration probe（1）Gauge head（1a）
It is equipped with bearing（7）With gear（2）Between high speed rotor（8）Top, and and high speed rotor（8）Match somebody with somebody in cylindrical gap
Close.
A kind of 5. turbine vibration detecting device as claimed in claim 1, it is characterised in that the vibration probe（1）Using external screw thread
Structure.
A kind of 6. turbine vibration detecting device as claimed in claim 4, it is characterised in that the vibration probe（1）Measuring point center
With same side bearing（7）The distance in outside is not more than 70mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720433384.5U CN206695985U (en) | 2017-04-24 | 2017-04-24 | A kind of turbine vibration detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720433384.5U CN206695985U (en) | 2017-04-24 | 2017-04-24 | A kind of turbine vibration detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206695985U true CN206695985U (en) | 2017-12-01 |
Family
ID=60445663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720433384.5U Expired - Fee Related CN206695985U (en) | 2017-04-24 | 2017-04-24 | A kind of turbine vibration detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206695985U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109579981A (en) * | 2018-12-28 | 2019-04-05 | 重庆江增船舶重工有限公司 | A kind of vibration monitoring device and method of bush(ing) bearing |
-
2017
- 2017-04-24 CN CN201720433384.5U patent/CN206695985U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109579981A (en) * | 2018-12-28 | 2019-04-05 | 重庆江增船舶重工有限公司 | A kind of vibration monitoring device and method of bush(ing) bearing |
| CN109579981B (en) * | 2018-12-28 | 2023-11-10 | 重庆江增船舶重工有限公司 | Vibration monitoring device and method for radial sliding bearing |
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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: 20171201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |