CN213068132U - Multi-force balance testing system for wind tunnel force test - Google Patents
Multi-force balance testing system for wind tunnel force test Download PDFInfo
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- CN213068132U CN213068132U CN202021872057.8U CN202021872057U CN213068132U CN 213068132 U CN213068132 U CN 213068132U CN 202021872057 U CN202021872057 U CN 202021872057U CN 213068132 U CN213068132 U CN 213068132U
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Abstract
The utility model discloses a multi-force balance testing system for wind tunnel force test, which comprises a turntable, a rotating top plate, a steel plate bearing platform and at least one force measuring device, wherein the steel plate bearing platform and the rotating top plate are arranged on the turntable and can rotate together with the turntable, the rotating top plate is positioned above the steel plate bearing platform, and the rotating top plate is provided with a through hole corresponding to the force measuring device; the force measuring device comprises a force measuring balance and a magnetic base, wherein the upper end and the lower end of the force measuring balance are respectively fixedly provided with a horizontal upper connecting plate and a horizontal lower connecting plate, a model to be tested is fixed on the upper connecting plate, the magnetic base is fixedly connected with the lower connecting plate, and the magnetic base can be adsorbed on the table top of the steel plate bearing platform and can also be separated from the steel plate bearing platform; when the magnetic base is correspondingly adsorbed on the upper surface of the steel plate bearing platform, the upper connecting plate is correspondingly positioned in the through hole. The utility model discloses the windage yaw angle of the model under test of change that can be convenient, light realization the fixed problem of installation of a plurality of dynamometry balances in the optional position.
Description
Technical Field
The utility model relates to a building structure wind tunnel test technical field especially relates to a many dynamometry balances test system of wind-tunnel dynamometry test.
Background
The wind tunnel force measurement test is widely applied to wind load tests of building structure models of high-rise buildings, large-span space structures, large-span bridges, power transmission towers, chimneys, communication antennas and the like, and the test result is very important for determining the structural wind load.
A traditional force measurement test generally adopts a force measurement balance, and the force measurement balance and a model are fixed at the central position of a rotating disc at the bottom of a wind tunnel through a supporting device to carry out wind load test. In fact, the wind loads of a plurality of adjacent or connected building structures are mutually influenced, and the wind loads of a plurality of structures are often tested synchronously in engineering practice. Such as simultaneously testing wind loads of two or more super high-rise connected structures.
Most laboratories at present are difficult to realize that multiple force balances can carry out synchronous testing at any position.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a many dynamometry balances test system of wind-tunnel dynamometry test is provided, its can be convenient change the windage yaw angle of the model under test, light realization a plurality of dynamometry balances at the fixed problem of installation of optional position.
Solve above-mentioned technical problem, the utility model discloses a technical scheme as follows:
a wind-tunnel force test's many dynamometers balance test system which characterized in that: the steel plate bearing platform and the rotating top plate are arranged on the rotating platform and can rotate along with the rotating platform, the rotating top plate is positioned above the steel plate bearing platform, and a through hole is formed in the rotating top plate corresponding to the force measuring device; the force measuring device comprises a force measuring balance and a magnetic base, wherein the upper end and the lower end of the force measuring balance are respectively fixedly provided with a horizontal upper connecting plate and a horizontal lower connecting plate, a model to be tested is fixed on the upper connecting plate, the magnetic base is fixedly connected with the lower connecting plate, and the magnetic base can be adsorbed on the table top of the steel plate bearing platform and can also be separated from the steel plate bearing platform; when the magnetic base is correspondingly adsorbed on the upper surface of the steel plate bearing platform, the upper connecting plate is correspondingly positioned in the through hole.
Further, the force measuring device further comprises a support, the support is fixedly connected with the lower connecting plate, a vertically downward threaded connecting column is arranged at the lower end of the support, a threaded hole is formed in the upper end of the magnetic base, and the magnetic base is in threaded connection with the threaded connecting column through the threaded hole.
Furthermore, the support is made of non-ferromagnetic material.
Furthermore, the bracket is made of aluminum alloy.
Furthermore, the multi-force balance testing system also comprises a bottom support, the bottom support is fixedly connected to the upper surface of the rotary table, and the steel plate bearing platform is arranged on the upper surface of the bottom support and supported by the bottom support.
Further, the rotating top plate is a wood plate.
Further, the magnetic base comprises at least one magnetic base which is provided with a magnetic force capable of being switched.
Further, the support includes the horizontally top mounting panel and fixes the stabilizer blade of establishing at the lower surface of top mounting panel, top mounting panel and lower connecting plate fixed connection, and the lower extreme of stabilizer blade sets up the screw thread spliced pole.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses can set up a plurality of force measuring device, its force measuring balance utilizes the strong magnetism between magnetic base and the steel sheet cushion cap to be connected and has replaced traditional bolted connection, and light realization a plurality of force measuring balance at the installation fixed problem of optional position, avoided the problem that the steel sheet cushion cap punched according to actual conditions many places or many times.
The utility model uses the same steel plate bearing platform to support a plurality of force measuring balances, thus facilitating the accurate positioning of the force measuring balances on the same plane and avoiding the inconvenience of designing a plurality of bearing platforms or supporting according to the number of the force measuring balances;
the utility model discloses a steel sheet cushion cap establishes at the revolving stage, and the windage yaw angle of the model under test that can be very convenient change through rotatory revolving stage.
In addition, the invention has simple structure and convenient assembly and disassembly, can realize the simultaneous assembly of a single force measuring balance or a plurality of force measuring balances at any position, solves the problem of synchronous force measurement of the super high-rise connected body structure, greatly improves the testing efficiency and shortens the testing time.
2. The utility model discloses can set up the support, be connected with magnetic base through the threaded connection post on the support, magnetic base and force measuring balance have been connected on the one hand in the setting of support, and the leveling of force measuring balance is realized with the length of adjusting each exposed threaded connection post to on the other hand accessible measurement.
3. Will the utility model discloses a when the material of support sets up to non-ferromagnetic material, can completely cut off the influence of magnetic base to the test signal of dynamometry balance.
Drawings
Fig. 1 is a schematic cross-sectional view of the present invention;
fig. 2 is a perspective view of the present invention.
The reference numerals in the drawings mean:
1-model; 2-rotating the top plate; 3-a model base plate; 4-an upper connecting plate; 5-a force measuring balance; 6-lower connecting plate; 7-top mounting plate; 8-a magnetic base; 9-a steel plate bearing platform; 10-bottom support; 11-a turntable; 12-a leg; 13-through hole.
Detailed Description
The present invention will be further described with reference to the following examples.
Fig. 1 and 2 show a multi-load-cell balance testing system for wind tunnel dynamometry test according to the present embodiment, which includes a turntable 11, a rotating top plate 2, a steel plate platform 9, a bottom support 10, a bracket, and at least one dynamometric device. In the embodiment, three tested models 1 are arranged, and three force measuring devices are correspondingly arranged.
The steel plate bearing platform 9 and the rotating top plate 2 of the embodiment are circular plates, wherein the rotating top plate 2 is a wood plate, and holes can be conveniently punched. The steel plate bearing platform 9 and the rotating top plate 2 are both arranged on the rotating platform 11 and can rotate together with the rotating platform 11, the rotating top plate 2 is located above the steel plate bearing platform 9, and a certain distance is reserved between the rotating top plate 2 and the steel plate bearing platform 9.
Specifically, the base support 10 is fixedly connected to the upper surface of the turntable 11, and the steel plate platform 9 is placed on the upper surface of the base support 10 and supported by the base support 10.
The rotating top plate 2 is provided with a through hole 13 corresponding to the force measuring device. As shown in fig. 1, the force measuring device comprises a force measuring balance 5 and a magnetic base 8, wherein the upper end and the lower end of the force measuring balance 5 are respectively and fixedly provided with a horizontal upper connecting plate 4 and a horizontal lower connecting plate 6, the upper connecting plate 4 and the lower connecting plate 6 are arranged at the upper end and the lower end of the force measuring balance 5 through internal screw-in bolts, and a model 1 to be tested is fixed on the upper connecting plate 4 through the bolts. The magnetic base 8 is fixedly connected with the lower connecting plate 6 through a support, and the magnetic base 8 can be adsorbed on the table top of the steel plate bearing platform 9 and can also be separated from the steel plate bearing platform 9. When the magnetic base 8 is correspondingly adsorbed on the upper surface of the steel plate bearing platform 9, the upper connecting plate 4 is correspondingly positioned in the through hole 13, and the upper surface of the upper connecting plate 4 is slightly lower than the upper surface of the rotating top plate 2.
Wherein, magnetic base 8 includes four magnetic force seats that are equipped with the magnetic force switch, and four magnetic force seats are according to the rectangle distribution, can open or close the magnetic force of magnetic force seat through rotating its switch.
The specific structure of the support of this embodiment is: it includes that the horizontally pushes up mounting panel 7 and fixes the stabilizer blade 12 of establishing at the lower surface of pushing up mounting panel 7, pushes up mounting panel 7 through bolt and lower connecting plate 6 fixed connection, and the lower extreme of stabilizer blade 12 sets up the screw thread spliced pole, and the screw thread spliced pole is perpendicular downwards, and the upper end of magnetic force seat is equipped with the screw hole, and the magnetic force seat is on the screw thread spliced pole through its screw hole threaded connection. By adjusting the length of the threaded connection between the magnetic base and the threaded connection post, the height of the force measuring balance 5 can be adjusted and the force measuring balance 5 can be leveled.
The specific operation process is as follows: the lower end of the model 1 to be tested is provided with a model bottom plate 3, a corresponding number of force measuring devices are selected according to the number of the model 1 to be tested, through holes 13 are correspondingly formed according to positions, the force measuring devices are placed to corresponding positions, the length of threaded connection between the magnetic base and the threaded connecting column is adjusted, the height of the force measuring balance 5 is adjusted, the force measuring balance 5 is leveled, the magnetic force of the magnetic base 8 is started, the force measuring devices are fixed, and then the model bottom plate 3 of the model 1 to be tested is fixed on the upper connecting plate 4 through bolts.
The above embodiments of the present invention are not right the utility model discloses the limited protection scope, the utility model discloses an embodiment is not limited to this, all kinds of basis according to the above-mentioned of the utility model discloses an under the above-mentioned basic technical thought prerequisite of the utility model, right according to ordinary technical knowledge and the conventional means in this field the modification, replacement or the change of other multiple forms that above-mentioned structure made all should fall within the protection scope of the utility model.
Claims (8)
1. A wind-tunnel force test's many dynamometers balance test system which characterized in that: the steel plate bearing platform and the rotating top plate are arranged on the rotating platform and can rotate along with the rotating platform, the rotating top plate is positioned above the steel plate bearing platform, and a through hole is formed in the rotating top plate corresponding to the force measuring device; the force measuring device comprises a force measuring balance and a magnetic base, wherein the upper end and the lower end of the force measuring balance are respectively fixedly provided with a horizontal upper connecting plate and a horizontal lower connecting plate, a model to be tested is fixed on the upper connecting plate, the magnetic base is fixedly connected with the lower connecting plate, and the magnetic base can be adsorbed on the table top of the steel plate bearing platform and can also be separated from the steel plate bearing platform; when the magnetic base is correspondingly adsorbed on the upper surface of the steel plate bearing platform, the upper connecting plate is correspondingly positioned in the through hole.
2. The multi-load balance testing system for wind tunnel load cell test according to claim 1, wherein: the force measuring device further comprises a support, the support is fixedly connected with the lower connecting plate, a vertically downward threaded connecting column is arranged at the lower end of the support, a threaded hole is formed in the upper end of the magnetic base, and the magnetic base is in threaded connection with the threaded connecting column through the threaded hole.
3. The multi-load balance testing system for wind tunnel load cell test according to claim 2, wherein: the support is made of non-ferromagnetic materials.
4. The multi-load balance testing system for wind tunnel load cell test according to claim 3, wherein: the bracket is made of aluminum alloy.
5. The multi-load balance testing system for wind tunnel load cell test according to claim 1, wherein: the multi-force balance testing system further comprises a bottom support, the bottom support is fixedly connected to the upper surface of the rotary table, and the steel plate bearing platform is arranged on the upper surface of the bottom support and supported by the bottom support.
6. The multi-load balance testing system for wind tunnel load cell test according to claim 1, wherein: the rotating top plate is a wood plate.
7. The multi-load balance testing system for wind tunnel load cell test according to claim 1, wherein: the magnetic base comprises at least one magnetic base which is provided with a switchable magnetic force.
8. The wind tunnel force test multi-load balance test system according to any one of claims 2 to 4, wherein: the support includes the horizontally top mounting panel and fixes the stabilizer blade of establishing at the lower surface of top mounting panel, top mounting panel with lower connecting plate fixed connection, the lower extreme setting of stabilizer blade the screw thread spliced pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021872057.8U CN213068132U (en) | 2020-09-01 | 2020-09-01 | Multi-force balance testing system for wind tunnel force test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021872057.8U CN213068132U (en) | 2020-09-01 | 2020-09-01 | Multi-force balance testing system for wind tunnel force test |
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| Publication Number | Publication Date |
|---|---|
| CN213068132U true CN213068132U (en) | 2021-04-27 |
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| CN202021872057.8U Active CN213068132U (en) | 2020-09-01 | 2020-09-01 | Multi-force balance testing system for wind tunnel force test |
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| CN (1) | CN213068132U (en) |
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2020
- 2020-09-01 CN CN202021872057.8U patent/CN213068132U/en active Active
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