CN106404342A - Dynamic loading device for rotary shaft balance - Google Patents
Dynamic loading device for rotary shaft balance Download PDFInfo
- Publication number
- CN106404342A CN106404342A CN201611029401.5A CN201611029401A CN106404342A CN 106404342 A CN106404342 A CN 106404342A CN 201611029401 A CN201611029401 A CN 201611029401A CN 106404342 A CN106404342 A CN 106404342A
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- balance
- rotary shaft
- power output
- loading device
- dynamic loading
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- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 230000008054 signal transmission Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
- G01M9/062—Wind tunnel balances; Holding devices combined with measuring arrangements
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a dynamic loading device for a rotary shaft balance, which comprises a rack, a driving motor arranged on the rack and a power output shaft arranged on the upper end face of the rack, and is characterized in that a power output end of the driving motor is connected to the power output shaft through a belt, one end of the power output shaft is connected to a dynamic loading device through the rotary shaft balance, and the other end of the power output shaft is connected to a slip ring electricity introducing device through a coupling. The dynamic loading device disclosed by the invention solves a loading problem of domestic rotary shaft balances, improves the measurement accuracy of the rotary shaft balance, and fills a gap in domestic related fields; and compared with similar products abroad, the dynamic loading device is better in efficiency-cost ratio, more convenient in use and low in maintenance cost.
Description
Technical field
The present invention relates to wind tunnel test field, a kind of specifically dynamic loading device of rotary shaft balance.
Background technology
Rotary shaft balance is mainly used in propeller aeroplane smooth impact wind tunnel test, can directly accurate measurement propeller carry
Lotus.Rotary shaft balance calibration includes static loading and dynamic load, and static loading is identical with balance normal calibration, and dynamic load is then
Need under certain rotating speed, balance imposed load to be calibrated, thus obtaining accurate balance formula.Rotary shaft balance dynamic load
It is a new technical field of comparison at home, its specific device is not also shown in by domestic wind-tunnel at present, and external wind-tunnel has correlation
Record., all within 10000 revs/min, external charger can be in balance for conventional rotary shaft balance rotating speed at present
Apply rated load in the range of maximum speed.
Content of the invention
It is an object of the invention to provide a kind of dynamic loading device of rotary shaft balance, the rotating speed realizing balance can reach
10000 revs/min, and can realize the signal transmission of balance under this high-speed rotation in outside controller.
For achieving the above object, the present invention adopts the following technical scheme that：
A kind of rotary shaft balance dynamic loading device, including stand, the motor being arranged on stand, is arranged on stand upper end
The power output shaft in face, the clutch end of described motor is connected on power output shaft by belt, and described power is defeated
One end of shaft is connected with dynamic loading device by rotary shaft balance, and the other end of power output shaft is connected to by shaft coupling
On slip ring electrical feedthrough；
Counterweight is loaded respectively with horizontal direction in vertical direction, described dynamic load on the outer tube of described dynamic loading device
The outer barrel of device is provided with a set of rolling bearing, and described rotary shaft balance is connected with rolling bearing；
It is provided with holding wire, slided with the balance being arranged in dynamic loading device in one end of holding wire in described rotary balance axle
Contact, the other end of holding wire is connected with slip ring electrical feedthrough after power output shaft.
In technique scheme, the clutch end of described motor is big belt wheel, and one end of power output shaft is
Small pulley, described belt is connected in big belt wheel and small pulley.
In technique scheme, the surface of described two ends of rotary shaft balance is respectively arranged with the contact of holding wire
Point, connects a holding wire between two contact points
In technique scheme, in described power output shaft, it is provided with wire casing, described holding wire is arranged in wire casing.
In technique scheme, it is provided with three wire casings in described power output shaft, is provided with each wire casing
One road holding wire.
In technique scheme, connecing of three holding wires is respectively arranged with the surface of two ends of rotary shaft balance
Contact, two corresponding contact points connect a holding wire.
In technique scheme, the contact point of described rotary shaft balance one end and balance sliding contact, power output shaft
The other end and slip ring electrical feedthrough sliding contact.
Compared with prior art, the invention has the beneficial effects as follows：
Which solves the difficult problem that state's inner rotary shaft balance loads, improve the precision of rotary shaft balance measurement, fill up
The blank of domestic association area.
With same kind of products at abroad contrast, more preferably, using more convenient, maintenance cost is low for efficiency-cost ratio.
Brief description
Fig. 1 is the structural representation of the present invention；
Wherein：1 is stand, and 2 is dynamic load scale pan, and 3 is dynamic loading device, and 4 is rotary shaft balance, and 5 is power output
Axle, 6 is small pulley, and 7 is belt, and 8 is shaft coupling, and 9 is slip ring electrical feedthrough, and 10 is big belt wheel, and 11 is motor, and 12 is stand
Wheel, 13 is jacking screw rod, and 14 is to load directive wheel.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.
As shown in figure 1, in order to ensure balance can normally run it is necessary to have for passive stand, stand
It is welded using rectangle steel, stand not only plays the effect for supporting balance, also act as and drive balance for fixing support
The dynamical system rotating.
One motor is fixed with stand, motor is used for providing power output, by big belt wheel by power
By on belt transport to small pulley, and small pulley is connected with power output shaft, thus by the power output band of motor
Dynamic power output shaft rotates.
Balance uses rotary shaft balance in the present invention, and one end of power output shaft is connected to by rotary shaft balance
In dynamic loading device, the power output shaft other end is connected to slip ring by shaft coupling and prints on electrical equipment.Described dynamic loading device
Including an outer tube, pass through rolling bearing and rotary shaft sky flushconnection, described outer tube and the rotation being connected with outer tube in outer tube
Axle balance in its natural state with plane-parallel.It is connected with the load(ing) point being provided with both direction, a side in outer barrel surface
It is connected dynamic load scale pan to the direction vertical with outer tube horizontal positioned, it is loaded in vertical direction；Another will
Dynamic load scale pan is connected with the end of outer tube, by loading directive wheel, its outer tube is loaded in the horizontal direction.Work as rotation
Rotating shaft balance, in rotation process, can measure the data in both direction by loading.
Rotary shaft balance is freely rotatable in outer tube, and the power applying therefore on outer tube needs defeated by balance by holding wire
Go out, the point that balance is contacted with dynamic loading device is exactly the test point of balance, in order to ensure to rotate in rotary shaft balance
During signal can export it is therefore desirable to balance is internal and power output shaft inside setting groove make the gentle power in rotary shaft sky
Output shaft is hollow axle, and holding wire is from laying in groove so that holding wire and power output shaft rotate together with rotary shaft balance.
And signal testing point is set in rotary shaft balance table, holding wire is connected with signal testing point.In the other end of power output, in order to
Signal transmission in holding wire is gone out, the surface of power output shaft is also equipped with signal testing point, each signal testing
A signal testing point on point corresponding rotation axle balance, shaft coupling is passed through at this end that then power output shaft has signal testing point
It is connected with slip ring electrical feedthrough, power output shaft is ceaselessly rotated by shaft coupling in rotation process in slip ring electrical feedthrough
Rotating signal is changed into spacing wave, slip ring electrical feedthrough will not be driven in rotation process to rotate, and signal testing point and cunning
Signal transmission is gone out by ring electrical feedthrough directly contact by slip ring electrical feedthrough.
In whole system running, the only gentle power output shaft in rotary shaft sky of actual rotation, by driving electricity
The driving of machine enables whole rotary shaft balance to reach 10000 revs/min, then it is being carried out add by dynamic loading device
Carry different counterweights so that rotary shaft balance can be tested in the little test index of dynamic environment.
The driving of the rotary shaft balance of the present invention relies on belt transmission to realize, and can reduce motor whirling vibration to balance
Impact is it is adaptable to precision rotation measurement part drives.Using frequency control motor, it is possible to achieve under rotary shaft balance different rotating speeds
The requirement loading is it is ensured that the measurement range of balance；Using the power output shaft with bearing, ensure that output and the letter of power
The transmission of number line；The use of slip ring electrical feedthrough, it is ensured that rotating signal transmission, prevents balance signal from disturbing；Using built-in bearing
Dynamic load cylinder is it is ensured that apply stable rotating signal to balance；Dynamic load counterweight adopt locking mechanism it is ensured that
Counterweight will not be shaked out under shock and vibration；Package unit adopts human engineering optimization design, facilitates the operations such as counterweight plus-minus.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (7)
1. a kind of rotary shaft balance dynamic loading device is it is characterised in that including stand, the motor being arranged on stand, setting
Put the power output shaft in stand upper surface, the clutch end of described motor is connected to power output shaft by belt
On, one end of described power output shaft is connected with dynamic loading device by rotary shaft balance, and the other end of power output shaft leads to
Cross shaft coupling to be connected on slip ring electrical feedthrough；
Counterweight is loaded respectively with horizontal direction in vertical direction, described dynamic load on the outer tube of described dynamic loading device
The outer barrel of device is provided with a set of rolling bearing, and described rotary shaft balance is connected with rolling bearing；
It is provided with holding wire, slided with the balance being arranged in dynamic loading device in one end of holding wire in described rotary balance axle
Contact, the other end of holding wire is connected with slip ring electrical feedthrough after power output shaft.
2. a kind of rotary shaft balance dynamic loading device according to claim 1 is it is characterised in that described motor
Clutch end is big belt wheel, and one end of power output shaft is small pulley, and described belt is connected in big belt wheel and small pulley.
3. a kind of rotary shaft balance dynamic loading device according to claim 1 is it is characterised in that described rotary shaft balance
The contact point of holding wire is respectively arranged with the surface of two ends, between two contact points, connects a holding wire.
4. a kind of rotary shaft balance dynamic loading device according to claim 3 is it is characterised in that described power output shaft
Inside it is provided with wire casing, described holding wire is arranged in wire casing.
5. a kind of rotary shaft balance dynamic loading device according to claim 4 is it is characterised in that described power output shaft
Inside it is provided with three wire casings, in each wire casing, be provided with a road holding wire.
6. a kind of rotary shaft balance dynamic loading device according to claim 5 is it is characterised in that in rotary shaft balance two
The contact point of three holding wires is respectively arranged with the surface of individual end, two corresponding contact points connect a holding wire.
7. according to a kind of arbitrary described rotary shaft balance dynamic loading device of claim 3～6 it is characterised in that described rotation
The contact point of axle balance one end and balance sliding contact, the other end of power output shaft and slip ring electrical feedthrough sliding contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029401.5A CN106404342B (en) | 2016-11-22 | 2016-11-22 | Rotary shaft translation dynamic loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029401.5A CN106404342B (en) | 2016-11-22 | 2016-11-22 | Rotary shaft translation dynamic loading device |
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| Publication Number | Publication Date |
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| CN106404342A true CN106404342A (en) | 2017-02-15 |
| CN106404342B CN106404342B (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611029401.5A Active CN106404342B (en) | 2016-11-22 | 2016-11-22 | Rotary shaft translation dynamic loading device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462395A (en) * | 2017-08-16 | 2017-12-12 | 中国空气动力研究与发展中心超高速空气动力研究所 | Interference coefficient calibration method between a kind of balance component |
| CN108344556A (en) * | 2018-04-28 | 2018-07-31 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of hypersonic wind tunnel balance dynamic characteristic verifying attachment |
| CN119197986A (en) * | 2024-11-26 | 2024-12-27 | 中国空气动力研究与发展中心低速空气动力研究所 | A six-component dynamic calibration load application device for a rotating axis balance |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462395A (en) * | 2017-08-16 | 2017-12-12 | 中国空气动力研究与发展中心超高速空气动力研究所 | Interference coefficient calibration method between a kind of balance component |
| CN107462395B (en) * | 2017-08-16 | 2019-03-19 | 中国空气动力研究与发展中心超高速空气动力研究所 | Interference coefficient calibration method between a kind of balance component |
| CN108344556A (en) * | 2018-04-28 | 2018-07-31 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of hypersonic wind tunnel balance dynamic characteristic verifying attachment |
| CN119197986A (en) * | 2024-11-26 | 2024-12-27 | 中国空气动力研究与发展中心低速空气动力研究所 | A six-component dynamic calibration load application device for a rotating axis balance |
| CN119197986B (en) * | 2024-11-26 | 2025-02-28 | 中国空气动力研究与发展中心低速空气动力研究所 | A six-component dynamic calibration load application device for a rotating axis balance |
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| Publication number | Publication date |
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| CN106404342B (en) | 2020-05-08 |
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