CN108362470A - A kind of balance calibration loading sleeve - Google Patents
A kind of balance calibration loading sleeve Download PDFInfo
- Publication number
- CN108362470A CN108362470A CN201810396100.9A CN201810396100A CN108362470A CN 108362470 A CN108362470 A CN 108362470A CN 201810396100 A CN201810396100 A CN 201810396100A CN 108362470 A CN108362470 A CN 108362470A
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- loading
- load
- loading sleeve
- main body
- calibration
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- 238000009434 installation Methods 0.000 claims description 7
- 229910000737 Duralumin Inorganic materials 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 230000035939 shock Effects 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000725 suspension 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)
- A Measuring Device Byusing Mechanical Method (AREA)
- Testing Of Balance (AREA)
Abstract
The invention discloses a kind of balance calibration loading sleeves.In such a way that pin positioning, screw thread compress, load nail in the balance calibration loading sleeve of the present invention is fixed on sliding block, so that the position of load(ing) point is positioned more accurate and secured, continuously adjusting and being continuously accurately positioned for balance calibration loading Position is realized by continuous moving of the sliding block in sliding slot.The balance calibration loading sleeve of the present invention avoids the interference for introducing larger additional pitching moment and yawing in sing1e unit calibration normal force and lateral force；In multi-units calibration, by controlling the position of load(ing) point, torque is made accurately to be adjusted according to the requirement of load table；Using the balance calibration loading sleeve of the present invention, the positional precision of balance calibration load(ing) point can be increased to 0.05mm.
Description
Technical field
The invention belongs to piezoelectric balance calibration loading device fields, and in particular to a kind of balance calibration loading sleeve.
Background technology
Wind-tunnel is the capital equipment for carrying out various dummy vehicle aerodynamic characteristic tests, and the operation for different wind-tunnel is special
Point has invented adaptable balance.The characteristics of piezoelectric balance is for the pulsing operation of shock tunnel short time and the dynamometry developed
Balance is tested, the demand of aerodynamic force on shock tunnel Millisecond test period measurement model is met.
In order to which accurately measure acts on the aerodynamic load on model in wind tunnel test, wind-tunnel balance is before the test
It needs by calibration to obtain the coefficient of utilization of balance, in wind tunnel test, according to the output of balance, then obtained by calibration
The coefficient of utilization of balance calculates the aerodynamic load acted on model.
Single vector load calibrates balance, and using counterweight as balance calibration load force vector, the posture of balance is determining and solid
After fixed, the direction of calibration load force vector also determines that, according to the spatial relation of balance and single vector load, by single arrow
Loading gage lotus decomposes on each component of balance, forms the required component load of balance calibration.Single vector load on loading sleeve
Position also then corresponds to the position of balance calibration load.In the calibration of piezoelectric balance, according to piezoelectric balance piezoelectric element
Charge leakage characteristic realizes the application of negative direction load using the mode of fast discharging.I.e. first on piezoelectric balance loading sleeve
Apply weight load, when calibrated, the weight load of this load is quickly laid down, the inverse process of load is passed through（Unloading）It realizes
The calibration of piezoelectric balance.
In the calibration of piezoelectric balance, calibration load is applied to piezoelectric balance by loading sleeve, mainly passes through loading position
Variation come change calibration torque size.The variation of loading position is realized by fixed point, is unable to consecutive variations.And in list
Component calibrate when, as normal force calibration in, when loading position is not in calibration center, additional pitching moment can be introduced
Interference.
Currently there is an urgent need for develop it is a kind of can consecutive variations loading position loading sleeve, this loading sleeve can be accurately positioned load position
It sets, can also accurately adjust and be fixed on loading position the calibration center of balance, to avoid carrying out normal force or lateral
Larger additional pitching moment or yawing interference are introduced in the calibration of power.
Invention content
The balance calibration loading sleeve of the present invention, its main feature is that, the balance calibration loading sleeve includes：Loading sleeve main body,
Sliding block, calibration block, briquetting, load nail, clamp nut, load bar.
Loading sleeve main body is one end closing, an one end open, and outer surface is provided with the horizontal positioned column of hole and slot
The front end face of shell structure, loading sleeve main body is blind end, has loading hole, lightening hole I and lightening hole II, loading hole on front end face
On the axis of loading sleeve main body, it is used for the load of axial force, the rear end face of loading sleeve main body to be open end；Loading sleeve main body
Middle part have connection cone section, connection cone section the conical surface be fixedly connected with piezoelectric balance, connection bore section on have lightening hole III；Load bar
Lateral surface in the middle part of loading sleeve main body, is used for the load of rolling moment, and load bar is symmetrical in the both sides of loading sleeve main body
Arrangement.
There is reference plane on the upper surface of loading sleeve main body beam, the deflection angle for measuring the installation of loading sleeve main body.Loading sleeve
Beam is loading beam below main body, is provided with sliding slot in the centre of loading beam, sliding block is installed in sliding slot.
The cross sectional shape of sliding block is T-type, is mounted on the sliding slot of the loading beam of loading sleeve main body, the side of sliding block and sliding slot
Tight fit, axis direction of the sliding block along loading sleeve main body in sliding slot move；There are a column pin hole and threaded hole in sliding block both sides, sliding block and
Calibration block is fixed as an entirety by screw and pin, and column pin hole is used for positioning sliding block and calibration block, and threaded hole is for fastening
Sliding block and calibration block；There is the step taper hole of installation load nail at the center of sliding block, passes through screw thread at the top of load nail and step taper hole
Connection；The middle part of load nail and step taper hole is positioned by taper pin；Load nail lower part has external screw thread, clamp nut to be followed closely by loading
The external screw thread of lower part compresses briquetting and calibration block；There is aperture in load nail bottom centre, and loaded line suspension calibration weight is passed through in aperture
Code is used for the load of normal force, lateral force, pitching moment and yawing；
It is carved with mating scale on the outer surface of loading beam and calibration block, is positioned by scale and determines normal force, lateral force, pitching
The loading position of torque and yawing.
Loading sleeve main body, load bar, sliding block and calibration block material be extra super duralumin alloy.
The position of the load(ing) point of the balance calibration loading sleeve of the present invention can continuously adjust and be accurately positioned, in sing1e unit calibration
When normal force and lateral force, the interference for introducing larger additional pitching moment and yawing is avoided；In multi-units calibration, pass through
The position for controlling load(ing) point, can be such that torque is accurately adjusted according to the requirement of load table；It is loaded using the balance calibration of the present invention
Set, can be increased to 0.05mm by the positional precision of balance calibration load(ing) point；The load nail of balance calibration loading sleeve passes through pin
Positioning, the mode that screw thread compresses are connected on sliding block, so that the position of load(ing) point is positioned more accurate and secured.
Description of the drawings
Fig. 1 is the stereogram of the balance calibration loading sleeve of the present invention；
Fig. 2 is the sectional view of the balance calibration loading sleeve of the present invention；
Fig. 3 is the top view of the balance calibration loading sleeve of the present invention；
Fig. 4 is the loading sleeve agent structure stereogram in the balance calibration loading sleeve of the present invention；
Fig. 5 is the slide block structure schematic diagram in the balance calibration loading sleeve of the present invention；
Fig. 6 sectional view along A-As along Fig. 5 for the sliding block in the balance calibration loading sleeve of the present invention；
Fig. 7 is the calibration block structural perspective in the balance calibration loading sleeve of the present invention.
In figure, 1. loading sleeve main body, 2. sliding block, 3. calibration block, 4. briquetting 5. load nail 6. clamp nut, 7. loading hole
801. lightening hole, I 802. lightening hole, II 803. lightening hole, III 9. load bar, 10. loading beam, 11. reference plane, 12. sliding slot
13. 14. screw hole of column pin hole, 15. step taper hole.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in Figs. 1-3, balance calibration loading sleeve of the invention includes：Loading sleeve main body 1, sliding block 2, calibration block 3, briquetting
4, load nail 5, clamp nut 6 and load bar 9.
As shown in Figure 1, loading sleeve main body 1 is one end closing, an one end open, outer surface is provided with the level of hole and slot
The front end face of the cylindrical shell structure of placement, loading sleeve main body 1 is blind end, has loading hole 7, I 801 and of lightening hole on front end face
Lightening hole II 802, loading hole 7 are located on the axis of loading sleeve main body 1, are used for the load of axial force, the rear end of loading sleeve main body 1
Face is open end；The middle part of loading sleeve main body 1 has connection cone section, the conical surface of connection cone section to be fixedly connected, connect with piezoelectric balance
There is lightening hole III 803 in cone section；Load bar 9 is mounted on the lateral surface at 1 middle part of loading sleeve main body, is used for the load of rolling moment,
Load bar 9 is arranged symmetrically in the both sides of loading sleeve main body 1.
As shown in figure 4, having reference plane 11 on the upper surface of loading sleeve main body 1 beam, for measuring the inclined of the installation of loading sleeve main body 1
Gyration；Beam is loading beam 10 below loading sleeve main body 1, is provided with sliding slot 12 in the centre of loading beam 10, is installed in sliding slot 12
Sliding block 2.
As shown in Fig. 1, Fig. 5, Fig. 6, the cross sectional shape of sliding block 2 is T-type, is mounted on the loading beam 10 of loading sleeve main body 1
On sliding slot 12, side and 12 tight fit of sliding slot of sliding block 2, sliding block 2 move in sliding slot 12 along the axis direction of loading sleeve main body 1
It is dynamic；2 both sides of sliding block have column pin hole 13 and threaded hole 14, sliding block 2 and calibration block 3 to be fixed as an entirety by screw and pin,
Column pin hole 13 is used for positioning sliding block 2 and calibration block 3, and threaded hole 14 is for fastening sliding block 2 and calibration block 3；There is peace at the center of sliding block 2
The top of the step taper hole 15 of dress load nail 5, load nail 5 and step taper hole 15 is connected through a screw thread；Load nail 5 and step taper hole
15 middle part is positioned by taper pin；5 lower parts of load nail have external screw thread, the external screw thread that clamp nut 6 follows closely 5 lower parts by load to compress
There are an aperture in briquetting 4 and 5 bottom centre of the load nail of calibration block 3, pass through loaded line to hang calibrating weight in aperture, for normal force,
The load of lateral force, pitching moment and yawing.
As shown in Figure 3 and Figure 7, it is carved with mating scale on the outer surface of loading beam 10 and calibration block 3, is positioned by scale
Determine the loading position of normal force, lateral force, pitching moment and yawing.
Loading sleeve main body 1, load bar 9, sliding block 2 and calibration block 3 material be extra super duralumin alloy.
Embodiment 1
When piezoelectric balance is calibrated, piezoelectric balance is horizontally arranged on calibrated mount first, in then passing through loading sleeve main body 1
The connection cone section in portion is mounted on the carrying cone of piezoelectric balance front end, passes through the reference plane 11 on the upper surface of loading sleeve main body 1 beam
This deflection angle is adjusted to loading sleeve main body 1 to allow after angle by the deflection angle for measuring the installation of balance calibration loading sleeve
It is fixed.According to the loading Position that load table determines, clamp nut 6 is unclamped, sliding block 3 is adjusted to pair in loading sleeve main body 1
Position is answered, clamp nut 6 is compressed, has determined that first loading position, loaded line hang weight by the aperture loaded on nail 5
Code.It is used cooperatively, loading position positioning accuracy can be increased to by scale in loading sleeve main body 1 and calibration block 3
0.05mm.When needing replacing to second loading position, make to be adjusted in a like fashion.Have on load nail 5 different straight
The aperture of diameter, for the loaded line across different-diameter, to meet the requirement of different calibration loads.5 are followed closely when needing replacing load
When, clamp nut 6 is unclamped, while unclamping the screw thread that 5 upper ends of load nail are connect with sliding block 2, load nail 5 is taken from sliding block 2
After going out, so that it may to realize the replacement of load nail 5.
Claims (3)
1. a kind of balance calibration loading sleeve, which is characterized in that the balance calibration loading sleeve includes：Loading sleeve main body（1）, it is sliding
Block（2）, calibration block（3）, briquetting（4）, load nail（5）, clamp nut（6）, load bar（9）；
The loading sleeve main body（1）For one end closing, one end open, outer surface is provided with the horizontal positioned of hole and slot
Cylindrical shell structure, loading sleeve main body（1）Front end face be blind end, have loading hole on front end face（7）, lightening hole I（801）With
Lightening hole II（802）, loading hole（7）Positioned at loading sleeve main body（1）Axis on, be used for axial force load, loading sleeve main body
（1）Rear end face be open end；Loading sleeve main body（1）Middle part have connection cone section, the conical surface and the piezoelectric balance of connection cone section solid
Fixed connection, connection, which is bored in section, lightening hole III（803）；Load bar（9）Mounted on loading sleeve main body（1）The lateral surface at middle part is used
In the load of rolling moment；
The loading sleeve main body（1）The upper surface of have reference plane on beam（11）, for measuring loading sleeve main body（1）The deflection of installation
Angle；
The loading sleeve main body（1）Below beam be loading beam（10）, in loading beam（10）Centre be provided with sliding slot（12）, sliding
Slot（12）Middle installation sliding block（2）；
The sliding block（2）Cross sectional shape be T-type, be mounted on loading sleeve main body（1）Loading beam（10）Sliding slot（12）On,
Sliding block（2）Side and sliding slot（12）Tight fit, sliding block（2）In sliding slot（12）It is interior along loading sleeve main body（1）Axis direction move
It is dynamic；Sliding block（2）There are column pin hole in both sides（13）And threaded hole（14）, sliding block（2）And calibration block（3）It is fixed as by screw and pin
One entirety, column pin hole（13）For positioning sliding block（2）And calibration block（3）, threaded hole（14）For fastening sliding block（2）And scale
Block（3）；Sliding block（2）Center have installation load nail（5）Step taper hole（15）, load nail（5）With step taper hole（15）Top
Portion is connected through a screw thread；Load nail（5）With step taper hole（15）Middle part positioned by taper pin；Load nail（5）Outer spiral shell is arranged at lower part
Line, clamp nut（6）It is followed closely by loading（5）The external screw thread of lower part compresses briquetting（4）And calibration block（3）；Load nail（5）In bottom
The heart has aperture, passes through loaded line to hang calibrating weight in aperture, for normal force, lateral force, pitching moment and yawing
Load；
The loading beam（10）Outer surface and calibration block（3）On be carved with mating scale, pass through scale positioning determine normal direction
The loading position of power, lateral force, pitching moment and yawing.
2. balance calibration loading sleeve according to claim 1, it is characterised in that：The loading sleeve main body（1）, load bar
（9）, sliding block（2）And calibration block（3）Material be extra super duralumin alloy.
3. balance calibration loading sleeve according to claim 1, it is characterised in that：The load bar（9）In loading sleeve master
Body（1）Both sides be arranged symmetrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396100.9A CN108362470B (en) | 2018-04-28 | 2018-04-28 | Balance calibration loading sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396100.9A CN108362470B (en) | 2018-04-28 | 2018-04-28 | Balance calibration loading sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108362470A true CN108362470A (en) | 2018-08-03 |
| CN108362470B CN108362470B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810396100.9A Active CN108362470B (en) | 2018-04-28 | 2018-04-28 | Balance calibration loading sleeve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238630A (en) * | 2018-09-20 | 2019-01-18 | 中国空气动力研究与发展中心超高速空气动力研究所 | Rod-type balance calibration device and calibration method |
| CN110631800A (en) * | 2019-10-23 | 2019-12-31 | 中国空气动力研究与发展中心超高速空气动力研究所 | Stress wave balance suspension device and installation method thereof |
| CN111044253A (en) * | 2020-01-21 | 2020-04-21 | 中国空气动力研究与发展中心低速空气动力研究所 | Quick loading method for six-component rod type balance |
| CN111289215A (en) * | 2020-03-16 | 2020-06-16 | 中国空气动力研究与发展中心超高速空气动力研究所 | Shock tunnel piezoelectric balance calibration method |
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| US20020088268A1 (en) * | 2001-01-08 | 2002-07-11 | Parker Peter A. | Single vector calibration system for multi-axis load cells and method for calibrating a multi-axis load cell |
| CN204228251U (en) * | 2014-12-12 | 2015-03-25 | 中国航空工业空气动力研究院 | For the charger of wind-tunnel hexa-atomic rod-type balance dynamic calibration |
| CN105300595A (en) * | 2015-11-27 | 2016-02-03 | 中国航空工业集团公司沈阳空气动力研究所 | Balance loading head with calibration of connected model and loading method |
| CN106053009A (en) * | 2016-07-05 | 2016-10-26 | 中国空气动力研究与发展中心超高速空气动力研究所 | Piezoelectric balance calibration loading sleeve |
| CN208140339U (en) * | 2018-04-28 | 2018-11-23 | 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 balance calibration loading sleeve |
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2018
- 2018-04-28 CN CN201810396100.9A patent/CN108362470B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20020088268A1 (en) * | 2001-01-08 | 2002-07-11 | Parker Peter A. | Single vector calibration system for multi-axis load cells and method for calibrating a multi-axis load cell |
| CN204228251U (en) * | 2014-12-12 | 2015-03-25 | 中国航空工业空气动力研究院 | For the charger of wind-tunnel hexa-atomic rod-type balance dynamic calibration |
| CN105300595A (en) * | 2015-11-27 | 2016-02-03 | 中国航空工业集团公司沈阳空气动力研究所 | Balance loading head with calibration of connected model and loading method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238630A (en) * | 2018-09-20 | 2019-01-18 | 中国空气动力研究与发展中心超高速空气动力研究所 | Rod-type balance calibration device and calibration method |
| CN109238630B (en) * | 2018-09-20 | 2024-01-19 | 中国空气动力研究与发展中心超高速空气动力研究所 | Rod balance calibration device and calibration method |
| CN110631800A (en) * | 2019-10-23 | 2019-12-31 | 中国空气动力研究与发展中心超高速空气动力研究所 | Stress wave balance suspension device and installation method thereof |
| CN111044253A (en) * | 2020-01-21 | 2020-04-21 | 中国空气动力研究与发展中心低速空气动力研究所 | Quick loading method for six-component rod type balance |
| CN111289215A (en) * | 2020-03-16 | 2020-06-16 | 中国空气动力研究与发展中心超高速空气动力研究所 | Shock tunnel piezoelectric balance calibration method |
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| Publication number | Publication date |
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| CN108362470B (en) | 2024-04-05 |
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