CN201697776U - Unidirectional force measurement device with disturbance resistance - Google Patents
Unidirectional force measurement device with disturbance resistance Download PDFInfo
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- CN201697776U CN201697776U CN2010202080597U CN201020208059U CN201697776U CN 201697776 U CN201697776 U CN 201697776U CN 2010202080597 U CN2010202080597 U CN 2010202080597U CN 201020208059 U CN201020208059 U CN 201020208059U CN 201697776 U CN201697776 U CN 201697776U
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- force measurement
- elastic hinge
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Abstract
The utility model relates to a unidirectional force measurement device with disturbance resistance, which is provided for the force measurement platform system of a wind tunnel test. The utility model solves the problem of disturbance variable existing among all force measurement units of the force measurement platform system, provides a path for improving the accuracy of the force measurement platform system and is beneficial to improving the level of the wind tunnel test. The utility model has the technical scheme that two force measurement sensors are arranged and combined side by side to measure forces; a force measurement sensor prepressing adjusting member is arranged between the two force measurement sensors; one end of each force measurement sensor is connected with a permanent seat through a bolt, and the other end thereof is connected with a load member through a connecting rod; the upper end of the connecting rod is provided with a compound elastic hinge; and the compound elastic hinge is formed by orthogonally arranging two elastic hinges. The utility model can effectively isolate the longitudinal force of a load to be measured and has high measurement accuracy, skillful structure, small volume, high simplicity and practicability and very broad application prospect.
Description
One, technical field
The utility model relate to a kind of have to disappear disturb the unidirectional device for measuring force of performance, the anti-interference unidirectional force measurement mechanism that can provide for the force plate/platform system of wind tunnel test.
Two, background technology
In the wind tunnel test process, wind-tunnel balance is used for the load that measurement model bears, and as power/torque measuring device in the wind tunnel test, wherein, the performance of force plate/platform system directly influences the accuracy of test figure.The interference volume that exists between each dynamometry unit of force plate/platform system influences the performance of balance, bulky to some especially, mostly be assembly, there is the measurement model of mismachining tolerance and installation deviation in the processing and manufacturing link, and the interference volume between the dynamometry unit is particularly outstanding to its Effect on Performance.
Three, summary of the invention
In order to solve the problem of the interference volume that exists between each dynamometry unit of wind tunnel force measurement plateform system, the utility model provides and a kind ofly can provide jamproof unidirectional force measurement mechanism for the wind tunnel force measurement plateform system, an approach that improves the accuracy of force plate/platform system is provided, helps to improve the wind tunnel test level.
The technical solution of the utility model is: a kind of have to disappear disturb the unidirectional device for measuring force of performance, adopt two force cells to be arranged side by side, to make up dynamometry, be provided with the force cell precompressed between two force cells and adjust member, force cell one end is connected with holder by bolt, the other end is connected with loading component by connecting link, the connecting link upper end is provided with the composite elastic hinge, and the composite elastic hinge is by two elastic hinge quadrature arrangement.
A kind of have to disappear disturb the unidirectional device for measuring force of performance, be provided with in the connecting link upper end composite elastic hinge arrangement for one or more groups.
A kind of have to disappear disturb the unidirectional device for measuring force of performance, being positioned on force cell precompressed between the force cell, to adjust member can be to adjust pad or adjust nut.
A kind of have to disappear disturb the unidirectional device for measuring force of performance, the minimum hinge cross sectional shape of forming the elastic hinge of composite elastic hinge is rectangle or circle.
Substantive distinguishing features compared with prior art of the present utility model and marked improvement are: when the force plate/platform system design, require that the phase mutual interference is not more than full scale (F.S.) 10% between each dynamometry unit, each non-dynamometry unit is not more than full scale 30% to the integrated interference of measuring unit.Adopt two force cells to be arranged side by side, the combination dynamometry is adjusted to original state by certain value and decrement by adjusting member with force cell, and the initial value of elimination force cell is measured inaccurate problem; Eliminate of the interference of the non-longitudinal force of load to be measured to the longitudinal force measurement by the distortion of composite elastic hinge, thereby the longitudinal force of load to be measured is separated, play the effect of eliminating the non-vertical interference of load to be measured, making the force cell measured value is the longitudinal force component of dynamometry load to be measured that the unit bears.Can reduce non-longitudinal force greatly by the present invention and measure to such an extent that disturb, improve the accuracy of the longitudinal force measurement of dynamometry unit longitudinal force.
The utility model can be isolated the longitudinal force of load to be measured, measures the accuracy height of load longitudinal force to be measured, and structure is ingenious, volume is little, simple and practical.For the manufacturing of pin-point accuracy combined type force plate/platform system provides vitals, distracter has vital role between the force plate/platform system dynamometry unit for eliminating, and its application prospect is very wide.
The utility model can be eliminated the force cell measured value that is caused by the connector distortion and disturb the measured deviation that is produced, and realizes the unidirectional dynamometry requirement of dynamometry unit.For the force plate/platform system that is made up of a plurality of dynamometry unit provides having of superior performance to disappear to disturb the unidirectional dynamometry unit of performance, can realize the measurement of following three power of coordinate system and three moments.
The utility model can effectively solve the interference that the force plate/platform system is caused by the dynamometry unit, thereby solves distracter problem in the force plate/platform system dynamometry compute matrix, the accuracy that improves the force plate/platform system.
Four, description of drawings
Fig. 1 is a kind of structural representation with the unidirectional device for measuring force of disturbing performance of disappearing, it is the synoptic diagram of pad that Fig. 2 adjusts member for the force cell precompressed, it is the synoptic diagram of nut that Fig. 3 adjusts member for the force cell precompressed, Fig. 4 is the structural representation of composite elastic hinge, and Fig. 5 is the minimum hinge cross sectional shape of an elastic hinge synoptic diagram.
Wherein, the 1st, force cell, the 2nd, holder, the 3rd, connecting link, the 4th, loading component, the 5th, composite elastic hinge, the 6th, member, the 7th is adjusted in the force cell precompressed, and elastic hinge, the 8th is adjusted pad, the 9th, adjusts nut, the 10th, minimum hinge cross section.
Five, embodiment
In conjunction with the accompanying drawings, provide following examples, the technical solution of the utility model is described further.
A kind of have to disappear disturb the unidirectional device for measuring force of performance, adopt two force cells [1] to be arranged side by side, to make up dynamometry, be provided with the force cell precompressed between two force cells [1] and adjust member [6], force cell [1] one end is connected with holder [2] by bolt, the other end is connected with loading component [4] by connecting link [3], connecting link [3] upper end is provided with composite elastic hinge [5], and composite elastic hinge [5] is by two elastic hinges [7] quadrature arrangement.
A kind of have to disappear disturb the unidirectional device for measuring force of performance, be provided with composite elastic hinge [5] in connecting link [3] upper end and be arranged as one or more groups.
A kind of have to disappear disturb the unidirectional device for measuring force of performance, being positioned on force cell precompressed between the force cell [1], to adjust member [6] can be to adjust pad [8] or adjust nut [9].
A kind of have to disappear disturb the unidirectional device for measuring force of performance, the minimum hinge cross sectional shape [10] of forming the elastic hinge [7] of composite elastic hinge [5] is rectangle or circle.
The course of work: adopt two force cells [1] to be arranged side by side, the combination dynamometry is adjusted to original state by certain value and decrement by adjusting member [6] with force cell [1], and the initial value of elimination force cell is measured inaccurate problem; Eliminate of the interference of the non-longitudinal force of load to be measured to the longitudinal force measurement by the distortion of composite elastic hinge [5], thereby the longitudinal force of load to be measured is separated, eliminate non-vertical interference of load to be measured, the measured value that makes force cell [1] is the longitudinal force component of dynamometry load to be measured that the unit bears, reduce non-longitudinal force greatly and measure to such an extent that disturb, improve the accuracy of the longitudinal force measurement of dynamometry unit longitudinal force.
Can form the force plate/platform system by a plurality of dynamometry unit, can realize three power under the coordinate system and the measurement of three moments.
Solve distracter problem in the force plate/platform system dynamometry compute matrix, the accuracy that improves the force plate/platform system.
Claims (4)
1. one kind has to disappear and disturbs the unidirectional device for measuring force of performance, it is characterized in that: adopt two force cells [1] to be arranged side by side, to make up dynamometry, be provided with the force cell precompressed between two force cells [1] and adjust member [6], force cell [1] one end is connected with holder [2] by bolt, the other end is connected with loading component [4] by connecting link [3], connecting link [3] upper end is provided with composite elastic hinge [5], and composite elastic hinge [5] is by two elastic hinges [7] quadrature arrangement.
2. according to claim 1 a kind of have to disappear disturb the unidirectional device for measuring force of performance, it is characterized in that: be provided with composite elastic hinge [5] in connecting link [3] upper end and be arranged as one or more groups.
3. according to claim 1 a kind of have to disappear disturb the unidirectional device for measuring force of performance, it is characterized in that: being positioned on force cell precompressed between the force cell [1], to adjust member [6] can be to adjust pad [8] or adjust nut [9].
4. according to claim 1 a kind of have to disappear disturb the unidirectional device for measuring force of performance, it is characterized in that: the minimum hinge cross sectional shape [10] of forming the elastic hinge [7] of composite elastic hinge [5] is rectangle or circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202080597U CN201697776U (en) | 2010-05-31 | 2010-05-31 | Unidirectional force measurement device with disturbance resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202080597U CN201697776U (en) | 2010-05-31 | 2010-05-31 | Unidirectional force measurement device with disturbance resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201697776U true CN201697776U (en) | 2011-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2010202080597U Expired - Fee Related CN201697776U (en) | 2010-05-31 | 2010-05-31 | Unidirectional force measurement device with disturbance resistance |
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| CN (1) | CN201697776U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630285A (en) * | 2013-12-13 | 2014-03-12 | 中国航天空气动力技术研究院 | Device for measuring RCS (Radar Cross Section) jet disturbance force and disturbance moment of near space aircraft |
| CN109724734A (en) * | 2019-01-22 | 2019-05-07 | 杭州瑞必莅机器人科技有限公司 | A kind of Unidirectional force measurement device for eliminating coupling |
-
2010
- 2010-05-31 CN CN2010202080597U patent/CN201697776U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630285A (en) * | 2013-12-13 | 2014-03-12 | 中国航天空气动力技术研究院 | Device for measuring RCS (Radar Cross Section) jet disturbance force and disturbance moment of near space aircraft |
| CN103630285B (en) * | 2013-12-13 | 2015-11-11 | 中国航天空气动力技术研究院 | Near space vehicle RCS Jet enterference power and disturbance torque measurement mechanism |
| CN109724734A (en) * | 2019-01-22 | 2019-05-07 | 杭州瑞必莅机器人科技有限公司 | A kind of Unidirectional force measurement device for eliminating coupling |
| CN109724734B (en) * | 2019-01-22 | 2023-10-03 | 杭州瑞必莅机器人科技有限公司 | One-way force measuring device capable of eliminating coupling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20130531 |