CN203443733U - High-speed wire transmission cabinet cooling fan dynamic balance correcting apparatus - Google Patents
High-speed wire transmission cabinet cooling fan dynamic balance correcting apparatus Download PDFInfo
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- CN203443733U CN203443733U CN201320498129.0U CN201320498129U CN203443733U CN 203443733 U CN203443733 U CN 203443733U CN 201320498129 U CN201320498129 U CN 201320498129U CN 203443733 U CN203443733 U CN 203443733U
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- transmission cabinet
- dynamic balance
- cabinet cooling
- cooling fan
- cooling blower
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Abstract
The utility model discloses a high-speed wire transmission cabinet cooling fan dynamic balance correcting apparatus. The apparatus comprises a fan rotor and a motor stator which are fixedly connected and further comprises a supporting platform. A connecting flange is disposed in the middle part of the supporting platform. The motor stator is fixedly connected with the supporting platform through the connecting flange. The motor stator is connected with a starting control panel through a power line. The starting control panel is connected with a power supply. An acceleration sensor of a vb3000 vibration measurement instrument is horizontally disposed in the epitaxial part of the connecting flange. A non-contact phase sensor is disposed on the supporting platform. By virtue of using the apparatus to perform the transmission cabinet cooling fan dynamic balance correction, a corrected cooling fan is ensured to operate stably and reliably after being installed and used. The corrected transmission cabinet cooling fan can reach a designed allowable imbalance residual volume, and the designed service life of the original transmission cabinet cooling fan can be prolonged by 12480 hours. The apparatus can be widely applied to dynamic balance correction of main transmission cabinet cooling fans and rolling mill main motor cooling fans in the steel rolling field.
Description
Technical field
The utility model relates to a kind of dynamic balance calibration device, relates in particular to a kind of high-speed rod transmission cabinet cooling blower dynamic balance calibration device.
Background technology
Friendship-straight-friendship frequency conversion system that high line rolling line main transmission adopts Siemens 6SE70 series digital to control.The vibration of 6SE70 series transmission cabinet cooling blower and the monitoring of degradation trend are weak links, because abnormal the caused consequence of transmission cabinet cooling blower is: transmission cabinet running temperature goes beyond the scope, reduce the serviceable life of electronic component in transmission cabinet, increase maintenance cost; Transmission cabinet temperature goes beyond the scope and causes whole rolling line disorderly closedown; The vibration of cooling blower causes the interior electronic component of transmission cabinet and wiring to be become flexible, and the accident of blowing out is short-circuited.
Cooling blower is installed on the top of transmission cabinet cabinet by drawer type, by providing in transmission cabinet, exchange 220v power supply, in cooling blower when running, is discharged into transmission side cashier's office in a shop by the evolution of heat of transmission cabinet internal power element, makes temperature in transmission cabinet for a long time within keeping specialized range.Cooling blower is mainly comprised of stator, Componentized fan rotor, drawer type static housing, control power supply.Componentized fan rotor is realized fan blade and motor integration assembling, cooling blower project organization is compact, assembly precision is had relatively high expectations, and not only will guarantee that rotor particle produces transient equilibrium, also will protect positive cooling blower blade particle skew simultaneously and produce transient equilibrium.Because the sealing of transmission cabinet cooling blower is arranged in transmission cabinet, in order to guarantee that cooling blower operates steadily, manufacturer mainly adopts and carries out dynamic balance calibration to assembling rear cooling blower complete machine at present, but after operation a period of time (17520 hours), due to parts wear, the reasons such as vibration, the balance particle lead on rotor outer ring configuring that makes to dispatch from the factory comes off, fan rotor is when around its axis High Rotation Speed, due to the non-uniform mass with respect to axis, center of gravity and rotation center are offset, and generation centrifugal force, destroy original transient equilibrium, therefore the monitoring of the vibration of transmission cabinet cooling blower and degradation trend seems very important.
When high line transmission cabinet cooling blower uses after 17520 hours designed lives online, because transmission cabinet cooling blower is closed installation, cannot realize an on-the-spot vibration monitoring difficult problem, when transmission cabinet cooling blower uses after 17520 hours designed lives online, can only more renew blower fan, because current domestic also producer useless is used cooling blower to carry out domestic conversion to Siemens 6SE70 series transmission cabinet, make the high of maintenance cost.
Utility model content
The purpose of this utility model is to provide a kind of high-speed rod transmission cabinet cooling blower dynamic balance calibration device, carry out dynamic balance calibration can to transmission cabinet cooling blower, guarantees to operate steadily after cooling blower after calibrated is installed reliable.
For achieving the above object, the technical scheme that the utility model is taked is:
A kind of high-speed rod transmission cabinet cooling blower dynamic balance calibration device, comprise the fan rotor and the motor stator that are fixedly connected with, also comprise support platform, joint flange is placed on the medium position of described support platform, and described motor stator is fixedly connected with support platform by joint flange; Described motor stator is connected with startup control panel by power lead, starts control panel and is connected with power supply; The acceleration transducer of vb3000 vibration measuring set lies in a horizontal plane in the extension place of described joint flange, and the noncontact phase detector of vb3000 vibration measuring set is placed in described support platform.
The flat surface of described support platform is straight carbon steel steel plate, is provided with the connecting hole being connected with described joint flange, and the bottom of platform is fixedly connected with back up pad.
The noncontact phase detector of described vb3000 vibration measuring set is adsorbed in described support platform by magnetic bases.
The high-speed rod transmission cabinet cooling blower dynamic balance calibration device that adopts the utility model to provide, can be to using 17520 hours above cooling blowers to carry out dynamic balance calibration, by to transmission cabinet cooling blower dynamic balance calibration device, guarantee to operate steadily after cooling blower after dynamic balance calibration is installed and used reliable.And the transmission cabinet cooling blower after calibrated can reach design and allow uneven residual volume, make life time for the design of former transmission cabinet cooling blower extend 12480 hours.This high-speed rod transmission cabinet cooling blower dynamic balance calibration device can be widely used in main transmission cabinet cooling blower, the rolling mill main motor cooling blower dynamic balance calibration in steel rolling field, solved import cooling blower dynamic balance calibration difficulty technical matters, extended cooling blower serviceable life, directly reduced and produce maintenance operating cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1-fan rotor, 2-motor stator, 3-fan blade, 4-reflective tape identification point, 5-angle identification point, 6-counterweight lead hole, 7-support platform, 8-joint flange, 9-square head bolt, 10-hexagon socket head cap screw, 11-bearing, 12-starts control panel, the noncontact phase detector of 13-vb3000 vibration measuring set, 14-shaft block ring, 15-hole back-up ring, the acceleration transducer of 16-vb3000 vibration measuring set.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing thereof, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
As shown in Figure 1, the high-speed rod transmission cabinet cooling blower dynamic balance calibration device that the utility model provides, comprise the fan rotor 1 and the motor stator 2 that are fixedly connected with, fan blade 3 is installed on fan rotor 1, also comprise support platform 7, joint flange 8 is placed on the medium position of support platform 7, and motor stator 2 is fixedly connected with support platform 7 by joint flange 8, motor stator 2 is connected with startup control panel 12 by power lead, starts control panel 12 and is connected with power supply.The acceleration transducer 16 of vb3000 vibration measuring set lies in a horizontal plane in the extension place of joint flange 8, and the noncontact phase detector 13 of vb3000 vibration measuring set is adsorbed in support platform 7 by magnetic bases.
On outer jump-ring slot on fan rotor 1 axle, shaft block ring 14 is installed, on motor stator 2 holes, interior jump-ring slot is installed the porose back-up ring 15 of using, and shaft block ring 14 is fixedly connected with by bearing 11 with back-up ring 15 with hole.The flat surface of square support platform 7 is straight carbon steel steel plate, the acceleration transducer 16 of vb3000 vibration measuring set lies in a horizontal plane in the extension place of joint flange 8, the noncontact phase detector 13 of vb3000 vibration measuring set is adsorbed in support platform 7 by magnetic bases, by carrying line, is connected with vb3000 vibration measuring set.In the flat surface of square support platform 7, offer the connecting hole being connected with joint flange 8, the bottom of platform is welded with the intensity that back up pad is used for strengthening support platform 7.Joint flange 8 is placed on the medium position of support platform 7, and motor stator 2 is connected after centering with joint flange 8 use hexagon socket head cap screws 10, and the connecting hole with square head bolt 9 by support platform 7 planes is connected with the M10 screw threads for fastening on joint flange 8.
The high-speed rod transmission cabinet cooling blower dynamic balance calibration device that the utility model provides, the course of work is as follows:
1. from high-speed rod transmission cabinet, remove cooling blower drawer type static housing, then Componentized fan rotor 1 in drawer type static housing and motor stator 2 are removed.
2. dismounting fan rotor 1 and motor stator 2 are lain in a horizontal plane in support platform 7, the dispatch from the factory quantity that comes off of counterweight lead in counterweight lead hole 6 on rotor outer ring of configuration of inspection, with diameter dimension d, the height dimension L of ruler and the former counterweight lead of vernier caliper measurement mounting hole, then measure the center of former counterweight lead mounting hole to fan rotor distance between center line size
, according to above-mentioned measurement data, centrifugal force that cooling blower produces after a balance particle lead of theoretical calculating comes off
.
Calculation procedure:
(1) calculate a lead weight m, according to m=ρ AL,
formula,
In formula: m-configures lead weight (g), the density (ρ=11.34g/cm of ρ-lead
3), L-lead hole height (L=1.2cm), d-lead bore dia (d=0.8cm), lead basal area-A,
:
.
(2) calculate a balance particle lead and come off after cooling blower produce centrifugal force
,
According to
,
In formula:
m-configuration lead quality (g), G-puts lead weight (N), the heavy acceleration (g=9.81m/s of g-
2),
the center of-lead mounting hole to fan rotor distance between center line (
=78mm), n-rotating speed (cooling blower working speed 2850r/min),
the angular velocity of-rotor (
);
:
=(0.087/9.8) * 0.078 * 84665.48=57.8N;
(3) to cooling blower rotor, allow the theory of amount of unbalance to calculate: Eper=(G * 1000)/(n/10)
In formula: Eper-quality of balance allowable (μ m), G-balance accuracy grade (with reference to ISO1940 international standard, the classification of rotor type service condition, chooses transmission cabinet cooling blower balance quality G6.3 level), n-working speed (n=2850r/min),
: Eper=(6.3 * 1000)/(2850/10)=22.1 μ m;
(4) calculate and allow maximum remaining unbalance mass: m=(Eper * M)/r,
In formula: m-allows remaining amount of unbalance (g), M-fan rotor quality (M=15kg), r-examination adds configuration radius (mm), and according to Entity measurement examination, adding counterweight radius is r=185mm: m=22.1 * 15/185=1.79g.
3. at the edge of fan rotor 1, with angle identification point 5, mark 0 to 359 angle index, reflective tape is attached to fan rotor 1 reflective tape identification point 4 places, fixedly the noncontact phase detector 13 of vb3000 vibration measuring set is in support platform 7, and aim at reflective tape identification point 4 on fan rotor 1, the acceleration transducer 16 of vb3000 surveying instrument lies in a horizontal plane in the extension place of joint flange 8, will start control panel 12 and insert in outside 220V supply socket.
4. press the switch that starts control panel 12, start cooling blower rotor 1 to working speed, with vb3000 vibration measuring set, pass through acceleration transducer 16, noncontact phase detector 13 is measured the initial vibration of uneven cooling blower rotor, phase angle, examination is added to 90 ° of positions that counterweight m weight is added to the angle identification point 5 of fan rotor 1, measure its vibratory response, according to the recommendation of vb3000 vibration measuring set, counterweight is added on respective angles identification point 5 positions of fan rotor, confirm the counterbalance effect of rotor, the remaining amount of unbalance of fan rotor 1 can be eliminated by above-mentioned means for correcting.
Above-described is only preferred embodiment of the present utility model, does not limit to the utility model.Should be understood that for the person of ordinary skill of the art, under technology enlightenment provided by the utility model, can also make other equivalent modifications and improvement, all can realize the purpose of this utility model, all should be considered as protection domain of the present utility model.
Claims (3)
1. a high-speed rod transmission cabinet cooling blower dynamic balance calibration device, comprise the fan rotor (1) and the motor stator (2) that are fixedly connected with, it is characterized in that, also comprise support platform (7), joint flange (8) is placed on the medium position of described support platform (7), and described motor stator (2) is fixedly connected with support platform (7) by joint flange (8); Described motor stator (2) is connected with startup control panel (12) by power lead, starts control panel (12) and is connected with power supply; The acceleration transducer of vb3000 vibration measuring set (16) lies in a horizontal plane in the extension place of described joint flange (8); The noncontact phase detector (13) of vb3000 vibration measuring set is placed in described support platform (7).
2. high-speed rod transmission cabinet cooling blower dynamic balance calibration device according to claim 1, it is characterized in that, the flat surface of described support platform (7) is straight carbon steel steel plate, is provided with the connecting hole being connected with described joint flange (8), and the bottom of platform is fixedly connected with back up pad.
3. high-speed rod transmission cabinet cooling blower dynamic balance calibration device according to claim 1, is characterized in that, the noncontact phase detector (13) of described vb3000 vibration measuring set is adsorbed in described support platform (7) by magnetic bases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320498129.0U CN203443733U (en) | 2013-08-15 | 2013-08-15 | High-speed wire transmission cabinet cooling fan dynamic balance correcting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320498129.0U CN203443733U (en) | 2013-08-15 | 2013-08-15 | High-speed wire transmission cabinet cooling fan dynamic balance correcting apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN203443733U true CN203443733U (en) | 2014-02-19 |
Family
ID=50094771
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320498129.0U Expired - Fee Related CN203443733U (en) | 2013-08-15 | 2013-08-15 | High-speed wire transmission cabinet cooling fan dynamic balance correcting apparatus |
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|---|---|
| CN (1) | CN203443733U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104769404A (en) * | 2012-08-30 | 2015-07-08 | 株式会社Ihi回转机械 | Support device for balance correction |
| CN105065312A (en) * | 2015-07-28 | 2015-11-18 | 德清恒鑫电子有限公司 | Fan blade balance testing device |
| CN108980114A (en) * | 2018-09-05 | 2018-12-11 | 上海诺地乐通用设备制造有限公司 | A kind of blower dynamic balancing correction unique stator and implementation method |
| CN112816132A (en) * | 2019-11-18 | 2021-05-18 | 珠海格力电器股份有限公司 | Dynamic balance correction auxiliary device and dynamic balance correction equipment |
| CN108980114B (en) * | 2018-09-05 | 2024-06-28 | 英飞同仁风机股份有限公司 | Stator special for correcting dynamic balance of fan and implementation method |
-
2013
- 2013-08-15 CN CN201320498129.0U patent/CN203443733U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104769404A (en) * | 2012-08-30 | 2015-07-08 | 株式会社Ihi回转机械 | Support device for balance correction |
| CN104769404B (en) * | 2012-08-30 | 2018-02-27 | 株式会社Ihi回转机械 | Balance correction supporting arrangement |
| CN105065312A (en) * | 2015-07-28 | 2015-11-18 | 德清恒鑫电子有限公司 | Fan blade balance testing device |
| CN105065312B (en) * | 2015-07-28 | 2017-11-10 | 德清恒鑫电子有限公司 | A kind of fan blade balance test device |
| CN108980114A (en) * | 2018-09-05 | 2018-12-11 | 上海诺地乐通用设备制造有限公司 | A kind of blower dynamic balancing correction unique stator and implementation method |
| CN108980114B (en) * | 2018-09-05 | 2024-06-28 | 英飞同仁风机股份有限公司 | Stator special for correcting dynamic balance of fan and implementation method |
| CN112816132A (en) * | 2019-11-18 | 2021-05-18 | 珠海格力电器股份有限公司 | Dynamic balance correction auxiliary device and dynamic balance correction equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20140815 |
|
| EXPY | Termination of patent right or utility model |