CN102062658A - Fan shaft output torque measurement device - Google Patents
Fan shaft output torque measurement device Download PDFInfo
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- CN102062658A CN102062658A CN 201010575431 CN201010575431A CN102062658A CN 102062658 A CN102062658 A CN 102062658A CN 201010575431 CN201010575431 CN 201010575431 CN 201010575431 A CN201010575431 A CN 201010575431A CN 102062658 A CN102062658 A CN 102062658A
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- blower fan
- support
- torque measurement
- output torque
- fan
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- 238000005259 measurement Methods 0.000 title claims abstract description 41
- 230000003028 elevating effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 14
- 238000012360 testing method Methods 0.000 description 8
- 210000002683 foot Anatomy 0.000 description 6
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The invention provides a fan shaft output torque measurement device, relating to a torque measurement device and mainly solving the problems of complex operation and low measurement accuracy of the traditional fan torque measurement process. The fan shaft output torque measurement device comprises a fan to be measured, an air duct and an air duct bracket, wherein a torque measurement ring is fixed between the fan to be measured and the air duct; and a fan supporting rack is arranged below the fan to be measured. A method of directly measuring the balance torque of the whole fan to obtain the output torque of the fan shaft is adopted in the invention, thus the measurement result is more accurate, the measurement process is more convenient, the efficiency is higher, and the measurement result is closer to working parameters of the fan in a real working state.
Description
Technical field
The present invention relates to a kind of torque-measuring apparatus, specifically a kind of blower fan axle output torque measurement mechanism.
Background technology
In the blower performance test, fan efficiency is most important index.The mechanical efficiency of blower fan equals the ratio of blower fan internal power and shaft power, characterizes fan bearing loss and transmission loss, is the leading indicator of blower fan machine driven system design.Fan shaft power equals the product of motor shaft output torque and angular velocity, and wherein the measurement of motor shaft output torque is a difficult point.Traditional method of testing mainly contains electrical measuring method and calibrated wrench method, and the electrical measuring method cost is low, tests flexiblely, but the test result precision is low; To dismantle blower fan in the calibrated wrench method course of work, the design shaft joint is so that connect motor shaft and impeller, test process is cumbersome, and torque sensor has certain length, impeller has often stretched out wheel hub after loading onto sensor, influence the aerodynamic characteristic of blower fan, and then influenced the authenticity of fan performance evaluation.
Summary of the invention
The object of the present invention is to provide a kind of blower fan axle output torque measurement mechanism, solve present blower fan torque measurement process trouble, the problem that measuring accuracy is not high.
The technical solution adopted for the present invention to solve the technical problems is: blower fan axle output torque measurement mechanism, comprise blower fan to be measured, air channel and air channel support, and it is characterized in that, be fixed with the torque measurement ring between described blower fan to be measured and the air channel; Described blower fan to be measured below is provided with the blower fan support stand; Described torque measurement ring is made of two ring flanges and a plurality of force cell, a plurality of force cells be fixed on uniformly between two ring flanges form cylindric; Described blower fan support stand comprises V-type support, support platform and lifting support, the V-type support is by being bolted to the both sides of support platform, lifting support is fixed on the bottom of support platform by lifting support, and lifting support is provided with the lifting handle of control lifting support; Symmetry is provided with two rollers on the described V-type support; Described support platform comprises guide rail and the back up pad of being with chute, and the both sides of back up pad are respectively equipped with two leg slide blocks, and the leg slide block is positioned at the guide rail of band chute; The two ends of the guide rail of band chute are provided with the lifting support fixed orifice, and back up pad is provided with V-type support fixed orifice; The lower end of described lifting support also is provided with elevating feet, also is provided with universal wheel between elevating feet, also is provided with level meter on lifting support.
The invention has the beneficial effects as follows: adopt the balancing torque of directly measuring whole blower fan, thereby obtain the method for blower fan axle output torque, measurement result is more accurate, and test process is convenient, efficient is higher, and test result is more near the running parameter under the blower fan actual working state.
Description of drawings
Fig. 1 is a structural representation of the present invention,
Fig. 2 is the structural representation of torque measurement ring of the present invention,
Fig. 3 is the structural representation of V-type support of the present invention,
Fig. 4 is the structural representation of support platform of the present invention.
Among the figure: 1 blower fan to be measured, 2 air channels, 3 air channel supports, 4 torque measurement rings, 41 ring flanges, 42 force cells, 5 lifting handles, 6V type support, 61 rollers, 7 support platforms, the guide rail of 71 band chutes, 72 back up pads, 73 leg slide blocks, 74 lifting support fixed orifices, 75V type support fixed orifice, 8 lifting supports, 81 lifting supports, 82 elevating feets, 83 universal wheels, 9 level meters.
Embodiment
As shown in Figure 1, blower fan axle output torque measurement mechanism, comprise blower fan 1 to be measured, air channel 2 and air channel support 3, be fixed with torque measurement ring 4 between described blower fan to be measured 1 and the air channel 2, as shown in Figure 2, described torque measurement ring 4 is made of two ring flanges 41 and a plurality of force cell 42, a plurality of force cells 42 be fixed on uniformly between two ring flanges 41 form cylindric, the internal diameter of ring flange 41 is consistent with the internal diameter in air channel 2, can not upset gas flowfield like this; Described blower fan to be measured 1 below is provided with the blower fan support stand, the blower fan support stand comprises V-type support 6, support platform 7 and lifting support 8, as shown in Figure 3, V-type support 6 is by being bolted to the both sides of support platform 7, symmetry is provided with two rollers 61 on the V-type support 6, roller 61 plays the effect of supporting blower fan 1 to be measured, can offset gravity to measuring the influence that produces, do not hinder simultaneously the axial rotation of blower fan 1 to be measured, can conduct oneself with dignity by the balance blower fan, avoid influencing test result, guaranteed that again blower fan is freely in the axial rotation of torsional interaction; Lifting support 8 is fixed on the bottom of support platform 7 by lifting support 81, lifting support 8 is provided with the lifting handle 5 of control lifting support 81, the aligning of being convenient to blower fan 1 to be measured and air channel 2 by the height of lifting handle 5 control lifting supports 81 be connected, the lower end of lifting support 8 also is provided with elevating feet 82, between elevating feet 82, also be provided with universal wheel 83, can guarantee moving of blower fan support stand by universal wheel 83, on lifting support 8, also be provided with level meter 9, can adjust the height of elevating feet 82 according to the indication of level meter 9, the levelness of regulating the blower fan support stand; As shown in Figure 4, described support platform 7 comprises guide rail 71 and the back up pad 72 of being with chute, the both sides of back up pad 72 are respectively equipped with two leg slide blocks 73, leg slide block 73 is positioned at the guide rail 71 of band chute, the two ends of the guide rail 71 of band chute are provided with lifting support fixed orifice 74, be used for fixing lifting support 81, back up pad 72 is provided with V-type support fixed orifice 75, is used for fixing V-type support fixed orifice 75.Support platform 7 and lifting support 81 can play the effect of blower fan and air channel assembly tooling, have solved the problem that artificial assembling is wasted time and energy, and have realized the mechanization of assembling process, have improved work efficiency.
Measuring principle: asynchronous machine machinery output power P
1=P
Ω+ P
Δ+ P
2, wherein, P
ΩBe mechanical loss power, P
ΔBe stray loss power, P
2Be clean mechanical output power.Since P=T * ω, and blower fan system mechanical angle speed equates, so T
1=T
Ω+ T
Δ+ T
2=T
Ω+Δ+ T
21.
Notice when empty load of motor T
2=0, T then
Ω+Δ=T
0, T
0Be the empty load of motor torque, 1. can get by formula: T
2=T
1-T
02.
As long as measure empty load of motor torque T
0With band set torque T
1, just can calculate the clean output machine torque T of motor
2
In the process of the test, dismantling the impeller of blower fan 1 to be measured, is in order to obtain the unloaded moment of torsion of this blower fan to be measured.A kind of blower fan or a collection of blower fan can only be measured once, when formally measuring the fan performance parameter, just need not dismantle impeller.Compare with traditional calibrated wrench method, without the load axial organ, workload has significantly reduced, and guarantees that blower fan is in actual working state, and measurement parameter is more near actual state.
Claims (6)
1. blower fan axle output torque measurement mechanism comprises blower fan to be measured, air channel and air channel support, it is characterized in that, is fixed with the torque measurement ring between described blower fan to be measured and the air channel; Described blower fan to be measured below is provided with the blower fan support stand.
2. blower fan axle output torque measurement mechanism according to claim 1 is characterized in that described torque measurement ring is made of two ring flanges and a plurality of force cell, a plurality of force cells be fixed on uniformly between two ring flanges form cylindric.
3. blower fan axle output torque measurement mechanism according to claim 1, it is characterized in that, described blower fan support stand comprises V-type support, support platform and lifting support, the V-type support is by being bolted to the both sides of support platform, lifting support is fixed on the bottom of support platform by lifting support, and lifting support is provided with the lifting handle of control lifting support.
4. blower fan axle output torque measurement mechanism according to claim 3 is characterized in that, symmetry is provided with two rollers on the described V-type support.
5. blower fan axle output torque measurement mechanism according to claim 3 is characterized in that described support platform comprises guide rail and the back up pad of being with chute, and the both sides of back up pad are respectively equipped with two leg slide blocks, and the leg slide block is positioned at the guide rail of band chute; The two ends of the guide rail of band chute are provided with the lifting support fixed orifice, and back up pad is provided with V-type support fixed orifice.
6. blower fan axle output torque measurement mechanism according to claim 3 is characterized in that the lower end of described lifting support also is provided with elevating feet, also is provided with universal wheel between elevating feet, also is provided with level meter on lifting support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010575431 CN102062658A (en) | 2010-12-07 | 2010-12-07 | Fan shaft output torque measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010575431 CN102062658A (en) | 2010-12-07 | 2010-12-07 | Fan shaft output torque measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102062658A true CN102062658A (en) | 2011-05-18 |
Family
ID=43998032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010575431 Pending CN102062658A (en) | 2010-12-07 | 2010-12-07 | Fan shaft output torque measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102062658A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115790930A (en) * | 2022-06-22 | 2023-03-14 | 浙江凌昇动力科技有限公司 | A highly adaptable and high-precision permanent magnet motor cogging torque measuring device and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU466413A1 (en) * | 1972-08-31 | 1975-04-05 | Предприятие П/Я Г-4974 | Device for measuring the torque of the fans |
| US5050092A (en) * | 1990-02-26 | 1991-09-17 | Perry Robert E | Fan efficiency measuring apparatus |
| EP1626261A1 (en) * | 2004-08-13 | 2006-02-15 | MTU Aero Engines GmbH | Apparatus and method for determining torques applied to turbine shafts |
| CN201163242Y (en) * | 2007-12-26 | 2008-12-10 | 珠海格力电器股份有限公司 | Wind simulation device |
| CN201402219Y (en) * | 2009-04-03 | 2010-02-10 | 长沙学院 | A performance test device for a heater for an electric fireplace |
| CN201531403U (en) * | 2009-09-09 | 2010-07-21 | 中国航天科技集团公司第四研究院四○一所 | Measuring loop used for measuring fan efficiency |
| CN201531404U (en) * | 2009-09-22 | 2010-07-21 | 中国航天科技集团公司第四研究院四○一所 | Fan efficiency testing device |
| CN101871844A (en) * | 2010-06-13 | 2010-10-27 | 清华大学 | Wind turbine performance analysis and fault simulation experiment system |
-
2010
- 2010-12-07 CN CN 201010575431 patent/CN102062658A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU466413A1 (en) * | 1972-08-31 | 1975-04-05 | Предприятие П/Я Г-4974 | Device for measuring the torque of the fans |
| US5050092A (en) * | 1990-02-26 | 1991-09-17 | Perry Robert E | Fan efficiency measuring apparatus |
| EP1626261A1 (en) * | 2004-08-13 | 2006-02-15 | MTU Aero Engines GmbH | Apparatus and method for determining torques applied to turbine shafts |
| CN201163242Y (en) * | 2007-12-26 | 2008-12-10 | 珠海格力电器股份有限公司 | Wind simulation device |
| CN201402219Y (en) * | 2009-04-03 | 2010-02-10 | 长沙学院 | A performance test device for a heater for an electric fireplace |
| CN201531403U (en) * | 2009-09-09 | 2010-07-21 | 中国航天科技集团公司第四研究院四○一所 | Measuring loop used for measuring fan efficiency |
| CN201531404U (en) * | 2009-09-22 | 2010-07-21 | 中国航天科技集团公司第四研究院四○一所 | Fan efficiency testing device |
| CN101871844A (en) * | 2010-06-13 | 2010-10-27 | 清华大学 | Wind turbine performance analysis and fault simulation experiment system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115790930A (en) * | 2022-06-22 | 2023-03-14 | 浙江凌昇动力科技有限公司 | A highly adaptable and high-precision permanent magnet motor cogging torque measuring device and method |
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Application publication date: 20110518 |