CN202493478U - Axial flow fan convenient for vibration measurement - Google Patents
Axial flow fan convenient for vibration measurement Download PDFInfo
- Publication number
- CN202493478U CN202493478U CN201220132985XU CN201220132985U CN202493478U CN 202493478 U CN202493478 U CN 202493478U CN 201220132985X U CN201220132985X U CN 201220132985XU CN 201220132985 U CN201220132985 U CN 201220132985U CN 202493478 U CN202493478 U CN 202493478U
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- China
- Prior art keywords
- vibration
- vibration pickup
- fixed plate
- air duct
- pickup fixed
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- 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 - Lifetime
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 27
- 238000003466 welding Methods 0.000 claims description 12
- 230000007797 corrosion Effects 0.000 claims description 7
- 238000005260 corrosion Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 abstract description 8
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The utility model discloses an axial flow fan convenient for vibration measurement. The axial flow fan comprises a wind barrel and a bearing base, wherein a vibration pickup fixing plate I which keeps the same height as a middle dividing surface of the bearing base inside the wind barrel and is connected with a corresponding position of the wind barrel outer shell in a horizontal direction is arranged on a wind barrel outer shell of the wind barrel; and a vibration pickup fixing plate II which is connected with the vibration pickup fixing plate I in a vertical direction is arranged at the lower surface of the vibration pickup fixing plate I close to one side of the wind barrel outer shell. As the vibration pickup fixing plates are additionally arranged at suitable positions of the outer shell of the wind barrel, the vibration pickups for performing vibration data measurement and applying data to dynamic balance computation can be mounted conveniently when abnormal vibration of the fan occurs. Therefore, convenience is brought about to the vibration treatment of the axial flow fan.
Description
Technical field
The utility model relates to the boiler accessory machinery technical field, relates in particular to a kind of axial fan of being convenient to vibration measurement.
Background technique
Axial fan is widely used in the boiler of power plant subsidiary engine, because design reasons, its free end shaft bearing is installed in air duct inside more.At blower fan generation abnormal vibrations in emergency circumstances, because of the scene maintenance condition is installed and limits and on air duct inner shaft bearing, vibration pickup to be installed, can only on the air duct shell, choose the vibration measuring point temporarily and carry out the hand-held measurement.Because measuring point is chosen with metering system and received interference from human factor, makes the data deficiency comparativity of each vibration measurement, cause very big difficulty for the Measurement and analysis of vibration and dynamic balancing work of treatment.The utility model installs the vibration pickup fixed plate additional on the air duct shell corresponding to inner shaft bearing mounting point, when blower fan generation abnormal vibrations, can vibration pickup be installed in the enterprising line stabilization in fixed position and measure.After recording the vibration data of this installation measuring point, be applied to spot dynamic balance and calculate, can carry out the abnormal vibrations work of treatment of axial fan easily.
Summary of the invention
The purpose of the utility model is exactly that existing technology exists to receive interference from human factor because measuring point is chosen with metering system in order to solve; The data deficiency comparativity of each vibration measurement is given the Measurement and analysis of vibration and the problem that the dynamic balancing work of treatment causes very big difficulty; A kind of axial fan of being convenient to vibration measurement is provided; Through on the shell of air duct, selecting suitable position to install the vibration pickup fixed plate additional; Vibration pickup can be installed when blower fan generation abnormal vibrations easily carry out the vibration data measurement and data are applied to dynamic balancing calculating, make things convenient for the vibration processing work of axial fan.
To achieve these goals, the utility model adopts following technological scheme:
A kind of axial fan of being convenient to vibration measurement; Comprise air duct, bearing support, the air duct shell of said air duct is provided with the vibration pickup fixed plate I; It is identical with the split height of air duct inner shaft bearing that the vibration pickup fixed plate I keeps, and is connected with air duct shell relevant position by substantially horizontal; Be provided with the vibration pickup fixed plates II in the vibration pickup fixed plate I near the lower surface of air duct shell one side, the vibration pickup fixed plates II is pressed vertical direction and is connected with the vibration pickup fixed plate I.
Vibration pickup fixed plate I and the welding of air duct shell, vibration pickup fixed plates II and the welding of vibration pickup fixed plate I.
Be provided with the reinforcement gusset between said air duct shell and the vibration pickup fixed plate I, strengthen the welding of gusset one end and air duct shell, the upper surface welding of the other end and vibration pickup fixed plate I.
Vibration pickup fixed plate I, vibration pickup fixed plates II are respectively through screw-thread fit and Vertical direction vibration pickup, and the substantially horizontal vibration pickup connects.Screw-thread fit axis and measurement direction be consistent, the bolt that carries with vibration pickup bottom during measurement is installed in it and has avoided on vibration pickup fixed plate because of vibration pickup that Blower Housing vibration in the measuring phase causes the more greatly problem that comes off.
Said vibration pickup fixed plate I, the vibration pickup fixed plates II is strengthened gusset and is adopted corrosion resistant plate to process.Guarantee that each structure has enough corrosion resistances and coupling stiffness.
The utility model working principle: a kind of axial fan of being convenient to vibration measurement; Comprise air duct; Bearing support, the air duct shell of said air duct is provided with the vibration pickup fixed plate I, and it is identical with the split height of air duct inner shaft bearing that the vibration pickup fixed plate I keeps; Be connected with air duct shell relevant position by substantially horizontal, the vibration pickup fixed plate I is provided with the Vertical direction vibration pickup; Be provided with the vibration pickup fixed plates II in the vibration pickup fixed plate I near the lower surface of air duct shell one side, the vibration pickup fixed plates II is pressed vertical direction and is connected with the vibration pickup fixed plate I, and the vibration pickup fixed plates II is provided with the substantially horizontal vibration pickup.Through on the shell of air duct, selecting suitable position to install the vibration pickup fixed plate additional, vibration pickup can be installed when blower fan generation abnormal vibrations easily carry out the vibration data measurement and data are applied to dynamic balancing calculating.This model utility greatly facilitates the vibration processing work of the type axial fan.Because of Blower Housing in the measuring phase vibrates bigger; For avoiding vibration pickup to come off; All be processed with the installation screw on the fixed plate, the axis that screw is installed should be consistent with measurement direction, and the bolt that carries with the vibration pickup bottom during measurement is installed in it on vibration pickup fixed plate.Each parts is all processed with corrosion resistant plate, has enough corrosion resistances and coupling stiffness.At first according to the method for the utility model, on the external casing corresponding, install the vibration pickup fixed plate in advance during use with air duct inner shaft bearing.Vibrating speed sensors is installed on the fixed position, starts blower fan, record the Vertical direction of this measuring point, the vibration on the substantially horizontal, carry out dynamic balancing with these data and calculate, draw the counterweight that should apply then to working speed.Start blower fan once more to working speed after applying counterweight, record the vibration on this measuring point Vertical direction, the substantially horizontal, qualified up to fan vibration requirement up to specification back adjustment.
The beneficial effect of the utility model:
1. the utility model installs the vibration pickup fixed plate additional through on the shell of air duct, selecting suitable position; Vibration pickup can be installed when blower fan generation abnormal vibrations easily carry out the vibration data measurement and data are applied to dynamic balancing calculating, greatly facilitate the vibration processing work of the type axial fan.
2. the data of vibration measurement are accurate, and error is little, are convenient to the vibration of in emergency circumstances taking measures fast to reduce at blower fan generation abnormal vibrations.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Among the figure, 1. vibration pickup fixed plate I, 2. the vibration pickup fixed plates II is 3. strengthened gusset, 4. air duct shell, 5. bearing support, 6. substantially horizontal vibration pickup, 7. Vertical direction vibration pickup.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
A kind of axial fan of being convenient to vibration measurement; Comprise air duct; Bearing support, the air duct shell 4 of said air duct is provided with vibration pickup fixed plate I 1, and vibration pickup fixed plate I 1 keeps identical with the split height of air duct inner shaft bearing; Be connected with air duct shell relevant position by substantially horizontal, vibration pickup fixed plate I 1 is provided with Vertical direction vibration pickup 7; Be provided with vibration pickup fixed plates II 2 in vibration pickup fixed plate I 1 near the lower surface of air duct shell one side, vibration pickup fixed plates II 2 is pressed vertical direction and is connected with vibration pickup fixed plate I 1, and vibration pickup fixed plates II 2 is provided with substantially horizontal vibration pickup 6.Said vibration pickup fixed plate I 1 and the welding of air duct shell, vibration pickup fixed plates II 2 and 1 welding of vibration pickup fixed plate I.Be provided with between said air duct shell and the vibration pickup fixed plate I 1 and strengthen gusset 3, strengthen the welding of gusset 3 one ends and air duct shell, the upper surface welding of the other end and vibration pickup fixed plate I 1.Said vibration pickup fixed plate I 1, vibration pickup fixed plates II 2 are connected with Vertical direction vibration pickup 7, substantially horizontal vibration pickup 6 through screw-thread fit respectively.Said vibration pickup fixed plate I 1, vibration pickup fixed plates II 2 is strengthened gusset 3 and is adopted corrosion resistant plate to process.Guarantee that whole parts have enough corrosion resistances and coupling stiffness.
Though the above-mentioned accompanying drawing that combines is described the embodiment of model utility; But be not restriction to the utility model protection domain; One of ordinary skill in the art should be understood that; On the basis of the technological scheme of the utility model, those skilled in the art need not pay various modifications that creative work can make or distortion still in the protection domain of the utility model.
Claims (5)
1. an axial fan of being convenient to vibration measurement comprises air duct, bearing support; It is characterized in that; The air duct shell of said air duct is provided with the vibration pickup fixed plate I, and it is identical with the split height of air duct inner shaft bearing that the vibration pickup fixed plate I keeps, and is connected with air duct shell relevant position by substantially horizontal; Be provided with the vibration pickup fixed plates II in the vibration pickup fixed plate I near the lower surface of air duct shell one side, the vibration pickup fixed plates II is pressed vertical direction and is connected with the vibration pickup fixed plate I.
2. the axial fan of being convenient to vibration measurement as claimed in claim 1 is characterized in that, said vibration pickup fixed plate I and the welding of air duct shell, vibration pickup fixed plates II and the welding of vibration pickup fixed plate I.
3. the axial fan of being convenient to vibration measurement as claimed in claim 1 is characterized in that, is provided with the reinforcement gusset between said air duct shell and the vibration pickup fixed plate I, strengthens the welding of gusset one end and air duct shell, the upper surface welding of the other end and vibration pickup fixed plate I.
4. the axial fan of being convenient to vibration measurement as claimed in claim 1 is characterized in that, said vibration pickup fixed plate I, vibration pickup fixed plates II are respectively through screw-thread fit and Vertical direction vibration pickup, and the substantially horizontal vibration pickup connects.
5. the axial fan of being convenient to vibration measurement as claimed in claim 3 is characterized in that, said vibration pickup fixed plate I, and the vibration pickup fixed plates II is strengthened gusset and is adopted corrosion resistant plate to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220132985XU CN202493478U (en) | 2012-03-31 | 2012-03-31 | Axial flow fan convenient for vibration measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220132985XU CN202493478U (en) | 2012-03-31 | 2012-03-31 | Axial flow fan convenient for vibration measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202493478U true CN202493478U (en) | 2012-10-17 |
Family
ID=46999711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220132985XU Expired - Lifetime CN202493478U (en) | 2012-03-31 | 2012-03-31 | Axial flow fan convenient for vibration measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202493478U (en) |
-
2012
- 2012-03-31 CN CN201220132985XU patent/CN202493478U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20121030 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121030 Address after: 250002 Ji'nan City Central District, Shandong, No. 2 South Road, No. 500 Patentee after: Shandong Research Inst. of Electric Power Patentee after: State Grid Corporation of China Address before: 250002 Ji'nan City Central District, Shandong, No. 2 South Road, No. 500 Patentee before: Shandong Research Inst. of Electric Power |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 250003 No. 2000, Wang Yue Road, Shizhong District, Ji'nan, Shandong Patentee after: Shandong Electric Power Research Institute Patentee after: State Grid Corporation of China Address before: 250002, No. 500, South Second Ring Road, Shizhong District, Shandong, Ji'nan Patentee before: Shandong Electric Power Research Institute Patentee before: State Grid Corporation of China |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121017 |