CN104897565A - Ice adhesion shearing strength measuring device - Google Patents
Ice adhesion shearing strength measuring device Download PDFInfo
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- CN104897565A CN104897565A CN201510312713.6A CN201510312713A CN104897565A CN 104897565 A CN104897565 A CN 104897565A CN 201510312713 A CN201510312713 A CN 201510312713A CN 104897565 A CN104897565 A CN 104897565A
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Abstract
The invention provides an ice adhesion shearing strength measuring device which comprises a base, a bearing and a central shaft which are connected in sequence by an arm of force, wherein the base is rectangular; two guide rails are arranged at two sides of the central axis in the length direction of the rectangular base; the cross sections of the guide rails are trapezoid; a trapezoid sliding block is adhered to each guide rail; rectangular grooves are formed below the sliding blocks; the sliding blocks can slide on the corresponding guide rails along the length direction of the base; the bearing is arranged in the middle of the base; the inner wall of the bearing is connected with the central shaft; the central shaft can rotate freely and is connected with the arm of force; a structure capable of being matched with a torque spanner is arranged at the top end of the central shaft; arc-shaped shapes are arranged on two ends of the sliding blocks and the arm of force, so that adhesion shearing force between ice and a material coating can be measured relatively accurately; water absorption sponge is adhered to an arc-shaped support of the arm of force, so that the integration of an ice layer can be ensured. By using the device, the adhesion strength between the ice and the surface of a material can be conveniently measured; compared with the prior art, the device is used for solving the influence of non-integration of the interior of the ice layer to the measurement result, and is simple in structure and easy to operate.
Description
Technical field
The present invention relates to a kind of adhesion strength measurement mechanism, particularly relate to a kind of ice and adhere to shear resistance measurement mechanism.
Background technology
At present, the method measuring ice and coating surface adhesion strength is more, but lacks unified standard and stability, and pertinent instruments also all exists each deficiency.As patent " a kind of icing mould, utilize it to measure the device and method of icing shearing force " (Chinese patent database, publication number: CN103760106A, publication date 2014-04-30), this invention adopts draws thrust test machine to be pushed away to record ice and material adhesion shearing force by the freezing good ice cube of employing mould, this appliance arrangement is expensive, and cannot ensure that thrust direction and shear plane are in same plane, cause measurement inaccurate.Also as centrifugal ice adheres to measurement mechanism (Ice adhesion on super-hydrophobic surfaces, Applied Surface Science, Volume 255, Issue 18,30June 2009, Pages8153-8157) water droplet is frozen on material, need trim quality, then High Rotation Speed, until ice departs from, this process need high-speed camera complete monitoring, apparatus expensive, and dangerous high.Such as scrape from formula mensuration (Reducing ice adhesion by hierarchical micro-nano-pillars Applied Surface Science, Volume 305, 30June 2014, Pages589-595, Yang He, Chengyu Jiang, Xiaobao Cao, Jun Chen, Wei Tian, Weizheng Yuan) dripped by the mobile ice scraped from ice material surface of probe, probe is connected with mechanics sensor thus obtains ice adhesion, it is parallel that this device cannot ensure that the power of probe applying and ice adhere to plane, lack the stability of test result.
Summary of the invention
The object of the invention is to provide a kind of easy to operate, that result is stable ice to adhere to shear resistance measurement mechanism.
The object of the present invention is achieved like this: comprise rectangular susceptor, central shaft and two slide blocks, the center of rectangular susceptor is provided with bearing, the lower end of described central shaft to be arranged in described bearing and the axis of central shaft and rectangular susceptor place plane orthogonal, the upper end of central shaft is provided with torque spanner, described rectangular susceptor is also provided with two slide rails, and described two slide rails are symmetricly set on the both sides of bearing along the length direction of rectangular susceptor, two slide blocks are arranged on two slide rails respectively, and each slide block is also provided with arc-like sheet, described central shaft is set with the symmetrically arranged arm of force, the two ends of the described symmetrically arranged arm of force are respectively arranged with arc-shaped bracket, and described arc-shaped bracket and shape identical with the radian of described arc-like sheet is coincide, each arc-shaped bracket also posts water-absorbing sponge, each arc-like sheet scribbles material coating.
The present invention also comprises some architectural features like this:
1. each described slide rail shape of cross section is stepped appearance, and the bottom of each slide block is provided with the groove coordinated with corresponding slide rail.
2. water-absorbing sponge described in and material coating bonded to each other.
Compared with prior art, the invention has the beneficial effects as follows: the present invention proposes a kind of easy to operate, the ice addisive strength measurement mechanism that result is stable, compare existing instrument and all need expensive sensor and the deficiency of display device, the present invention uses equalising torque to obtain the adhesion strength of ice and coating surface, easy to operate, with low cost.Consider that the intensity of ice may be less than the adhesion strength of ice and material surface, previous fractures before ice and material surface depart from, and cannot measure the adhesion strength of ice and material surface, the method that the water suction of the present invention's water-absorbing sponge is frozen improves the intensity of ice sheet itself.Consider that the applying power of direct push or pull measurement mechanism exists eccentricity issues, the present invention adopts the method applying moment of torsion and arc-shaped contact surface to eliminate power eccentricity issues.The present invention can measure the adhesion strength of ice and material surface easily, compared with prior art solves the incomplete property of ice sheet inside to the impact of measurement result, and structure is simple, processing ease.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention;
Fig. 2 is Standard figure of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Composition graphs 1 and Fig. 2, pedestal 1 has slide rail 8, and is connected with bearing 9, and two slide blocks 3 with arc-like sheet assembled by slide rail 8.Central shaft 2 and bearing 9 are assembled.Central shaft 2 is connected with the arm of force 7, and the arm of force 7 is symmetrically arranged arm of forces, and water-absorbing sponge 5, with arc-shaped bracket 6, arc-shaped bracket 6 is posted in the arm of force 7 two ends, and the arc-shaped bracket 6 with water-absorbing sponge 5 can coincide with the arc-like sheet on slide block 3.Central shaft 2 upper end can be connected with torque spanner 4, to apply moment of torsion.During measurement, the coating that will survey is coated on the arc-like sheet of slide block 3, after being absorbed water by water-absorbing sponge 5, promotes slide block 3, makes it to fit with the arc-shaped bracket 6 of the arm of force.Device is placed in refrigerator and freezes, after freezing, torque spanner 4 is connected with central shaft 2 top, apply moment of torsion.Until ice and coating record moment of torsion reading when departing from.Known freezing area, torque arm length, torque, just can calculate ice and adhere to shear resistance.
Also namely central shaft top of the present invention is connected with the symmetrical arm of force, and arm of force two ends are connected with arc-shaped bracket, and arc-shaped bracket is connected with water-absorbing sponge, and water-absorbing sponge build-ups ice after being filled water can strengthen ice sheet intensity.Central shaft lower end is connected with solid bearing.Central shaft upper end is connected with torque spanner, is used for measuring moment of torsion.Arc-shaped bracket with water-absorbing sponge fully contacts with material coating surface, and it is have on the slide block of arc-like sheet equally that coating material invests.Slide block can slide at slide rail, and the slide block conveniently with arc-like sheet contacts with water-absorbing sponge.After sponge sucks in water, promote slide block, slide block curved surfaces is contacted with sponge, device is put into refrigerator and cooled simultaneously and freeze ice, torque spanner is connected with central shaft top, increase moment of torsion.When ice cube and slide block depart from, read the torque value of torque spanner.According to equalising torque, calculate the shear resistance on ice and material coating surface.
Pedestal of the present invention, bearing, central shaft, the arm of force are linked in sequence, and pedestal is rectangle, rectangle have two guide rails, and respectively with trapezoidal slide block on each guide rail, fluted below slide block, slide block can along base length direction Stable sliding on guide rail; Central shaft can rotate freely, and central shaft is connected with the arm of force, and the structure can mated with torque spanner is contained on central shaft top.Base central is provided with bearing, and central shaft lower end is connected with inside bearing.Two guide rails are placed in base length direction center line symmetry, and track cross-section is stepped appearance.Slide block and arm of force two ends have arcuate profile, and both can fit.With certain thickness water-absorbing sponge on the arc-shaped bracket of the arm of force.
Claims (3)
1. an ice adheres to shear resistance measurement mechanism, it is characterized in that: comprise rectangular susceptor, central shaft and two slide blocks, the center of rectangular susceptor is provided with bearing, the lower end of described central shaft to be arranged in described bearing and the axis of central shaft and rectangular susceptor place plane orthogonal, the upper end of central shaft is provided with torque spanner, described rectangular susceptor is also provided with two slide rails, and described two slide rails are symmetricly set on the both sides of bearing along the length direction of rectangular susceptor, two slide blocks are arranged on two slide rails respectively, and each slide block is also provided with arc-like sheet, described central shaft is set with the symmetrically arranged arm of force, the two ends of the described symmetrically arranged arm of force are respectively arranged with arc-shaped bracket, and described arc-shaped bracket and shape identical with the radian of described arc-like sheet is coincide, each arc-shaped bracket also posts water-absorbing sponge, each arc-like sheet scribbles material coating.
2. a kind of ice according to claim 1 adheres to shear resistance measurement mechanism, and it is characterized in that: each described slide rail shape of cross section is stepped appearance, the bottom of each slide block is provided with the groove coordinated with corresponding slide rail.
3. a kind of ice according to claim 1 and 2 adheres to shear resistance measurement mechanism, it is characterized in that: described water-absorbing sponge and material coating bonded to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510312713.6A CN104897565B (en) | 2015-06-09 | 2015-06-09 | Ice adhesion shearing strength measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510312713.6A CN104897565B (en) | 2015-06-09 | 2015-06-09 | Ice adhesion shearing strength measuring device |
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| Publication Number | Publication Date |
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| CN104897565A true CN104897565A (en) | 2015-09-09 |
| CN104897565B CN104897565B (en) | 2017-05-24 |
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| CN201510312713.6A Active CN104897565B (en) | 2015-06-09 | 2015-06-09 | Ice adhesion shearing strength measuring device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2550427A (en) * | 2016-05-20 | 2017-11-22 | Gkn Aerospace Services Ltd | Ice test devices |
| CN108181233A (en) * | 2018-01-09 | 2018-06-19 | 四川大学 | A kind of material surface is dynamically into ice adhesion assay method and its device |
| CN110346289A (en) * | 2019-08-02 | 2019-10-18 | 中国商用飞机有限责任公司 | The test device and test method of the tangential Freezing adhesive strength test of material |
| CN111257141A (en) * | 2020-02-28 | 2020-06-09 | 广州大学 | Device and method for testing shear fatigue performance of asphalt |
| CN113484235A (en) * | 2021-06-25 | 2021-10-08 | 东北农业大学 | Device for measuring ice adhesion strength on surface of wind turbine blade |
| CN114034637A (en) * | 2022-01-10 | 2022-02-11 | 中国空气动力研究与发展中心低速空气动力研究所 | Device and method for in-situ measurement of icing adhesion |
| CN116136484A (en) * | 2023-03-28 | 2023-05-19 | 东北农业大学 | Mechanism, device and test method for measuring icing bonding strength of airfoil blade |
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2015
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2550427A (en) * | 2016-05-20 | 2017-11-22 | Gkn Aerospace Services Ltd | Ice test devices |
| GB2550427B (en) * | 2016-05-20 | 2019-10-02 | Gkn Aerospace Services Ltd | Ice test devices |
| CN108181233A (en) * | 2018-01-09 | 2018-06-19 | 四川大学 | A kind of material surface is dynamically into ice adhesion assay method and its device |
| CN108181233B (en) * | 2018-01-09 | 2020-11-27 | 四川大学 | Method and device for measuring dynamic ice forming adhesive force on material surface |
| CN110346289A (en) * | 2019-08-02 | 2019-10-18 | 中国商用飞机有限责任公司 | The test device and test method of the tangential Freezing adhesive strength test of material |
| CN111257141A (en) * | 2020-02-28 | 2020-06-09 | 广州大学 | Device and method for testing shear fatigue performance of asphalt |
| CN113484235A (en) * | 2021-06-25 | 2021-10-08 | 东北农业大学 | Device for measuring ice adhesion strength on surface of wind turbine blade |
| CN114034637A (en) * | 2022-01-10 | 2022-02-11 | 中国空气动力研究与发展中心低速空气动力研究所 | Device and method for in-situ measurement of icing adhesion |
| CN114034637B (en) * | 2022-01-10 | 2022-11-18 | 中国空气动力研究与发展中心低速空气动力研究所 | Device and method for in-situ measurement of icing adhesion |
| CN116136484A (en) * | 2023-03-28 | 2023-05-19 | 东北农业大学 | Mechanism, device and test method for measuring icing bonding strength of airfoil blade |
| CN116136484B (en) * | 2023-03-28 | 2023-10-24 | 东北农业大学 | Mechanism, device and test method for measuring icing bonding strength of airfoil blade |
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| CN104897565B (en) | 2017-05-24 |
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