CN201351621Y - Axial flow fan with vibration measuring device - Google Patents
Axial flow fan with vibration measuring device Download PDFInfo
- Publication number
- CN201351621Y CN201351621Y CNU2009201120880U CN200920112088U CN201351621Y CN 201351621 Y CN201351621 Y CN 201351621Y CN U2009201120880 U CNU2009201120880 U CN U2009201120880U CN 200920112088 U CN200920112088 U CN 200920112088U CN 201351621 Y CN201351621 Y CN 201351621Y
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- motor
- vibration
- bearing
- output shaft
- axial
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- 238000005259 measurement Methods 0.000 claims abstract description 29
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011326 mechanical measurement Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a take vibration measuring device's axial fan mainly includes fan housing, vibration sensor, pulse sensor, is equipped with impeller, motor in the fan housing, and the motor includes motor output shaft and end cover, and motor output shaft arranges in on drive end bearing and the rear bearing. The main working principle is as follows: a vibration sensor is horizontally arranged on a motor shell or an end cover and is used for vibration measurement in the Y-axis direction, and signals output by the sensor are input to a digital instrument for display and transmission, so that online detection and alarming are realized. A pulse sensor is arranged on a drive end bearing or a rear bearing of the motor and used for measuring whether the motor bearing works normally or not, early warning of the motor bearing is specially solved, and a fan maintenance worker obtains a pulse signal through an off-line monitoring instrument to an interface. The utility model discloses can be more accurate monitor the operation conditions of fan, also carry out early warning to the motor bearing.
Description
Technical field
The utility model relates to a kind of axial-flow blower that has vibration measurement device, belongs to blower fan and ventilation system field of engineering technology.
Background technique
At present, known axial-flow blower is for guaranteeing the safe and reliable of long-time running, on large-scale blower fan, begun to install vibration measurement device, to uneven and system assembles that sudden vibration fault and bearing that problem such as misalign causes are monitored in the fan operation process because of self.When the blower fan running gear causes the vibration of blower fan body because of the fault of loosening, the serious blade contamination imbalance of machinery, bearing and other reason, the output electrical signal of sensor is increased, when surpassing allowed band, it is out of service to send warning and chain blower fan.
The present axial-flow blower vibration measurement device that adopts, continuing to use conventional mechanical measurement method for oscillating: the impeller of axial-flow blower is that strapdown type is connected with motor, and impeller is installed on the motor shaft.Motor is installed in the flow blower casing.Flow blower casing adopts the vibration damper elastic support to be installed on the foundation of civil work.The vibration transducer of measuring fan vibration is installed on the flow blower casing or on the motor housing.
Existing axial-flow blower mainly has the following disadvantages: one, because being the vibration damper elastic support, installs axial-flow blower, therefore produce the vibration of Vertical direction to a certain degree, and problems such as air channel air-flow produce stronger axial vibration, the vibration transducer of the measuring vibrations of existing axial-flow blower is because be installed on the flow blower casing or on the motor housing, so can cause all that to blower fan Vertical direction and axial vibration vibration all can be by the output electrical signal of vibration transducer, when blower fan Vertical direction and axial vibration strengthen, the electrical signal of output strengthens, when arriving certain intensity, alarm work, cause very many false alarms, do not play accurate and effective monitoring the axial-flow blower security of operation.Two, existing axial-flow blower is not monitored the output shaft drive end bearing or the rear bearing of motor, the vibration state of the operation of blower fan depends primarily on the output shaft drive end bearing of motor or the vibration on the rear bearing, insufficient lubrication, spot corrosion that bearing is early stage are to cause the jiggly main cause of fan operation.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides a kind of accurately and reliably with the axial-flow blower of vibration measurement device, satisfies the safety monitoring of axial-flow blower mechanical vibration.
For achieving the above object, the utility model is by the following technical solutions: a kind of axial-flow blower with vibration measurement device, comprise: flow blower casing and vibration transducer, be provided with impeller, motor in the described flow blower casing, described motor comprises motor output shaft, end cap and housing, place on drive end bearing and the rear bearing at described motor output shaft, described vibration transducer level is installed on the electric motor end cap or housing with motor output shaft axis normal direction.
The axial-flow blower of above-mentioned band vibration measurement device, it also comprises impulser, described impulser places on motor output shaft drive end bearing or the rear bearing.It also can comprise the demonstration control instrument, and described vibration transducer is electrically connected with the demonstration control instrument.It also can comprise the off-line measurement instrument, and described impulser is connected with the off-line measurement instrument signal.
Because being the vibration damper elastic support, installs by blower fan, the vibration that when operation, can produce Vertical direction to a certain degree, and problems such as air channel air-flow produce stronger axial vibration, adopt such scheme, the axial-flow blower of band vibration measurement device of the present utility model, because the vibration transducer level is installed on the electric motor end cap or housing with motor output shaft axis normal direction, vibration transducer is only monitored the vibration of blower fan body in the horizontal radial direction, Vertical direction and the axial vibration of blower fan are not monitored, therefore avoid the false alarm that causes because of Vertical direction and axial vibration, reflected the operational shock situation of blower fan body more accurately.In addition, the vibration state of the operation of blower fan depends primarily on the output shaft drive end bearing of motor or the vibration on the rear bearing, and insufficient lubrication, spot corrosion that bearing is early stage are to cause the jiggly main cause of fan operation.For the vibration on motor output shaft drive end bearing or the rear bearing is monitored, the utility model also comprises impulser, described impulser places on motor output shaft drive end bearing or the rear bearing, the attendant can be by the off-line measurement instrument that is connected with impulser, regularly read the bearing vibration situation, carry out early warning.In a word, adopt the axial-flow blower of band vibration measurement device of the present utility model, can monitor the vibration situation in the fan operation process accurately, also can expect in early days, make the operation of axial-flow blower safer motor output shaft drive end bearing and rear bearing.
Description of drawings
Fig. 1 is the axial-flow blower structural drawing of the utility model band vibration measurement device.
The 1-flow blower casing, 2-vibrates dynamic sensor, the 3-impulser, the 4-impeller, the 5-motor, the 6-motor output shaft, the 7-end cap, the 8-drive end bearing, the 9-rear bearing, 10-shows control instrument, 11-off-line measurement instrument, 12-housing.
Embodiment
As described in Figure 1, set X, Y, Z direction, X is motor output shaft 6 axial directions, and Y is and the substantially horizontal of motor output shaft 6 axis normal that Z is a Vertical direction.The utility model discloses a kind of axial-flow blower with vibration measurement device, comprise: flow blower casing 1 and vibration transducer 2,, be provided with impeller 4, motor 5 in the described flow blower casing 1, described motor 5 comprises motor output shaft 6, end cap 7 and housing 12, place on drive end bearing 8 and the rear bearing 9 at described motor output shaft 6, therefore the axial-flow blower similar of said structure and prior art is not now described in detail here.The axial-flow blower of band vibration measurement device of the present utility model has following characteristics:
One of characteristics: described vibration transducer 2 levels are installed on the electric motor end cap 7 or housing 12 with motor output shaft 6 axis normal directions.Because generally being elastic support, installs by blower fan, can produce to a certain degree vibration in when operation in Z-direction, because problems such as air channel air-flow can produce stronger blower fan axial vibration again in X-axis direction, adopt such scheme, the axial-flow blower of band vibration measurement device of the present utility model, because vibration transducer 2 levels are installed on the electric motor end cap 7 or housing 12 with motor output shaft 6 axis normal directions, so 2 monitoring blower fans of vibration transducer body is in the vibration of Y direction, vibration to Z axle and X-axis direction is not monitored, therefore the false alarm of having avoided the vibration because of Z axle and X-axis direction to cause reflects the operational shock situation of blower fan body more accurately.
Two of characteristics: the axial-flow blower of above-mentioned band vibration measurement device, it also comprises impulser 3, described impulser 3 places on the electric machine casing of the electric machine casing of motor output shaft drive end bearing 8 correspondences or rear bearing 9 correspondences.The vibration state of the operation of blower fan depends primarily on the vibration on motor output shaft drive end bearing 8 or the rear bearing 9, the insufficient lubrication that bearing is early stage, spot corrosion, be to cause the jiggly main cause of fan operation, for the vibration on motor output shaft drive end bearing 8 or the rear bearing 9 is monitored, the utility model also comprises impulser 3, described impulser 3 places on motor output shaft drive end bearing 8 or the rear bearing 9, by the off-line measurement instrument 11 that is connected with impulser 3, the attendant can regularly read the bearing vibration situation, carries out early warning.
Three of characteristics: the axial-flow blower of above-mentioned band vibration measurement device, it also comprises demonstration control instrument 10, described vibration transducer 2 is electrically connected with demonstration control instrument 10.The attendant monitors the vibration state of blower fan by showing control instrument 10 in real time.
Four of characteristics: the axial-flow blower of above-mentioned band vibration measurement device, it also comprises off-line measurement instrument 11, described impulser 3 is connected with off-line measurement instrument 11 signals.The attendant can regularly read the bearing vibration situation, carries out early warning.
On electric motor end cap 7 or housing 12, the motor vertical axial direction is opened screw by the installation thread size size of vibration transducer 2, and level is installed vibration transducer 2; On motor driving step bearing 8 corresponding shell, the motor vertical axial direction is installed the thread size size by pulse sensor 3 and is opened screw, and impulser 3 is installed; On motor rear bearing 9 corresponding shell, the motor vertical axial direction is installed the thread size size by pulse sensor 3 and is opened screw, and impulser 3 is installed.
Claims (4)
1, a kind of axial-flow blower with vibration measurement device, comprise: flow blower casing (1) and vibration transducer (2),, be provided with impeller (4), motor (5) in the described flow blower casing (1), described motor (5) comprises motor output shaft (6), end cap (7) and housing (12), place on drive end bearing (8) and the rear bearing (9) at described motor output shaft (6), it is characterized in that: described vibration transducer (2) level is installed on the electric motor end cap (7) or housing (12) with motor output shaft (6) axis normal direction.
2, the axial-flow blower of band vibration measurement device as claimed in claim 1, it is characterized in that: it also comprises impulser (3), and described impulser (3) places on the electric machine casing (12) of corresponding electric machine casing (12) of motor output shaft drive end bearing (8) or rear bearing (9) correspondence.
3, the axial-flow blower of band vibration measurement device as claimed in claim 1 is characterized in that: it also comprises demonstration control instrument (10), and described vibration transducer (2) is electrically connected with showing control instrument (10).
4, impulser as claimed in claim 2 (3) is characterized in that: it also comprises off-line measurement instrument (11), and described impulser (3) is connected with off-line measurement instrument (11) signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201120880U CN201351621Y (en) | 2009-01-04 | 2009-01-04 | Axial flow fan with vibration measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201120880U CN201351621Y (en) | 2009-01-04 | 2009-01-04 | Axial flow fan with vibration measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201351621Y true CN201351621Y (en) | 2009-11-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201120880U Expired - Lifetime CN201351621Y (en) | 2009-01-04 | 2009-01-04 | Axial flow fan with vibration measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201351621Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787715A (en) * | 2010-02-26 | 2010-07-28 | 招商局重庆交通科研设计院有限公司 | Method used for testing stability of foundation of fan suspended in road tunnel and system therefor |
| CN101968378A (en) * | 2010-09-30 | 2011-02-09 | 河南电力试验研究院 | Device and method applied to on-site vibration tests of double-pole primary air fan |
| CN102175453A (en) * | 2011-01-21 | 2011-09-07 | 太原重工股份有限公司 | Bearing on-line monitoring method of casting crane reducer |
| CN103867475A (en) * | 2012-12-18 | 2014-06-18 | 上海宝钢工业技术服务有限公司 | Method for detecting on-line running state of dual-rotor axial flow fan |
| CN104145407A (en) * | 2012-03-01 | 2014-11-12 | 西门子公司 | Method for operating an electrical machine |
-
2009
- 2009-01-04 CN CNU2009201120880U patent/CN201351621Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787715A (en) * | 2010-02-26 | 2010-07-28 | 招商局重庆交通科研设计院有限公司 | Method used for testing stability of foundation of fan suspended in road tunnel and system therefor |
| CN101968378A (en) * | 2010-09-30 | 2011-02-09 | 河南电力试验研究院 | Device and method applied to on-site vibration tests of double-pole primary air fan |
| CN102175453A (en) * | 2011-01-21 | 2011-09-07 | 太原重工股份有限公司 | Bearing on-line monitoring method of casting crane reducer |
| CN104145407A (en) * | 2012-03-01 | 2014-11-12 | 西门子公司 | Method for operating an electrical machine |
| CN104145407B (en) * | 2012-03-01 | 2016-08-24 | 西门子公司 | For the method running motor |
| CN103867475A (en) * | 2012-12-18 | 2014-06-18 | 上海宝钢工业技术服务有限公司 | Method for detecting on-line running state of dual-rotor axial flow fan |
| CN103867475B (en) * | 2012-12-18 | 2016-10-05 | 上海宝钢工业技术服务有限公司 | Birotor axial flow blower on-line operation condition detection method |
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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: ZHEJIANG JINDUN FAN CO., LTD. Free format text: FORMER OWNER: ZHEJIANG JINDUN BLOWER COOLING EQUIPMENT CO., LTD. Effective date: 20111212 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111212 Address after: 312363 Zhang Zhen Industrial Zone, Zhejiang, Shangyu Patentee after: Zhejiang Jindun Fans Holding Co., Ltd. Address before: 312363 Industrial Zone, Chapter town, Shangyu, Zhejiang Patentee before: Zhejiang Jindun Blower Cooling Equipment Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091125 |