CN105004622A - Shock testing device of large-scale protecting glass - Google Patents
Shock testing device of large-scale protecting glass Download PDFInfo
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- CN105004622A CN105004622A CN201510210048.XA CN201510210048A CN105004622A CN 105004622 A CN105004622 A CN 105004622A CN 201510210048 A CN201510210048 A CN 201510210048A CN 105004622 A CN105004622 A CN 105004622A
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- supporting steel
- impulse member
- hanger bracket
- spring
- electromagnet
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Abstract
The invention relates to the technical field of experimental testing, and aims at providing a shock testing device of large-scale protecting glass. The shock testing device comprises a clamping component and a suspending component. The clamping component comprises a base, a supporting steel box, an upper frame and a rubber gasket. The supporting steel box is used for placing the large-scale flat-panel protecting glass. The upper frame is capable of connecting with the supporting steel box tightly and enables the rubber gasket to be arranged between the upper frame and the supporting steel box. The suspending component comprises a suspending frame, an electromagnet, a spring, laser pens and a DV. The electromagnet is installed at the center of a top beam of the suspending frame, the spring is fixed on the electromagnet, a shocking piece is absorbed at the lower end of the spring through the electromagnet, the four faces of one frame column of the suspending frame are provided with scales, and a row of laser pens are tied on the other frame column of the suspending frame. The DV is arranged on the suspending component. According to the shock testing device of the large-scale protecting glass, the large-scale protecting glass is difficult to vibrate and deviate, the veracity of testing is guaranteed, the bouncing speed of the shocking piece can be measured, and a more completed analysis is conducted on the shock testing.
Description
Technical field
The invention relates to experiment test technical field, particularly a kind of apparatus for impact testing of large-scale cover plate.
Background technology
Cover plate is widely used in the middle of life as a kind of important impact-resistant transparent material.Existing apparatus for impact testing is divided into Charpy impact machine tester, landing impact testing machine, fall-ball type impact testing machine according to test method.Charpy impact machine tester detects the impact absorbing energy having the metalwork of v-notch, is rarely used in the detection of hard brittle material.Drop sample machine is mainly used in test pipe-type sample, and apparatus design is complicated, high cost.Fall-ball type impact testing machine structure is simple and easy to use, is widely used in the test of pottery, plastics, glass impact strength.But for large-scale dull and stereotyped cover plate, the universal chuck as its clamping device cannot meet clamping requirement, and the shape of falling sphere does not meet the design standards of sharp instrument in GA 844-2009.In addition, ball falling impact proving installation utilizes gravitional force to be converted to kinetic energy and tests, and makes the trestle of device too high, is unfavorable for maintenance and the storage of instrument, and the accuracy of impact test.In last falling device, falling sphere can only smash sample, cannot directly obtain any data, is difficult to the shock resistance of more comprehensively characterization sample.
Summary of the invention
Fundamental purpose of the present invention is to overcome deficiency of the prior art, provides a kind of test request that can meet the large-scale cover plates such as GA 844-2009, and can carry out the device of repeatedly repeated stock experiment.
For solving the problems of the technologies described above, solution of the present invention is:
There is provided a kind of apparatus for impact testing of large-scale cover plate, comprise clamp assemblies and suspension assembly, described clamp assemblies comprises pedestal, supporting steel case, upper frame, rubber washer; Described supporting steel case welds by 4 block plates the hollow square body steel case formed, the upper end of every block plate is processed with an identical step, the large flat cover plate of shock-testing is needed to carry out for placing, the lower end of every block plate is weldingly fixed on pedestal respectively, for supporting steel case is fixed on base central; Described upper frame is the framework surrounded by 4 steel bars, by bolt and supporting steel case compact siro spinning technology; Described rubber washer is bonded in the bottom of upper frame, can when the top of supporting steel case is connected with the bottom of upper frame, between the top being arranged on supporting steel case and the bottom of upper frame;
Described suspension assembly comprises hanger bracket, electromagnet, spring, laser pen and DV; The bar post of described hanger bracket to be xsect be quadrilateral, bar post is inverted u-shaped structure, and the upper end of inverted u-shaped structure is top cross-bar, and the both sides of inverted u-shaped structure are trestle; The bottom of hanger bracket, the i.e. lower end of two trestles, be connected and fixed with the both sides midpoint of pedestal respectively by thru-bolt; Described electromagnet is arranged on the central authorities of hanger bracket top cross-bar by set bolt, and the upper end of spring is fixed on electromagnet, and the lower end of spring can utilize electromagnet to adsorb impulse member; On a trestle of hanger bracket, four sides indicates scale, another trestle of hanger bracket is tied with row's laser pen, laser level can be radiated on the graduated trestle of mark and form luminous point by laser pen, and when described impulse member drops from spring time, impulse member can cover laser pen and irradiate to the laser indicating scale trestle; Described DV is arranged on suspension assembly, for taking the position of luminous point on scale.
As further improvement, the step width of described supporting steel case is not less than (standard GA 844-2009 defined) 20mm.
As further improvement, described pedestal is steel plate.
As further improvement, described hanger bracket is wooden hanger bracket.
As further improvement, described apparatus for impact testing also comprises impulse member, and gravitional force and the elastic potential energy sum of impulse member can reach (impact energy of GA 844-2009 requires) 64J.
As further improvement, the lower end of described impulse member is the round platform that diameter upwards increases gradually, and the upper end of impulse member is the cylinder that diameter is identical with lower end round platform maximum gauge.
As further improvement, the top center of described impulse member is provided with the cylindrical pit that a degree of depth is 4 ~ 8mm, and spring can insert pit absorption impulse member.
Compared with prior art, the invention has the beneficial effects as follows:
1, large glass can be fixed on clamp assemblies by the present invention thoroughly, makes it be difficult to vibration and skew occur, the accuracy of warranty test; In addition, the present invention can measure the bounce-back speed of impulse member, has more complete analysis to impulse test.
2, the present invention can meet the requirement of GA 844-2009, and reduces the complexity of operation, can carry out repetitious impact experiment.
3, upper frame of the present invention is 4 independently elongate steel plate, is easy to processing process and reduces costs; And for the design of impulse member and the utilization of electromagnetic launch system, the requirement that can meet impact energy can meet again the design of hanger bracket.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Reference numeral in figure is: 1 pedestal; 2 supporting steel casees; 3 upper frames; 4 rubber washers; 5 hanger brackets; 6 electromagnet; 7 springs; 8 laser pens; 9DV; 10 impulse members.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
The apparatus for impact testing of a kind of large-scale cover plate as shown in Figure 1 comprises clamp assemblies, suspension assembly and impulse member 10, can carry out impulse test to large flat cover plate.
Described clamp assemblies comprises pedestal 1, supporting steel case 2, upper frame 3, rubber washer 4.Described pedestal 1 adopts certain thickness steel plate, supporting steel case 2 welds by 4 block plates the steel case formed, one end of every block plate is processed with an identical step, need to carry out the large flat cover plate of shock-testing for placing, the other end of every block plate is weldingly fixed on pedestal 1 respectively.The framework that upper frame 3 is made up of 4 steel bars, for by bolt and supporting steel case 2 compact siro spinning technology; Described rubber washer 4 is bonded between the top of supporting steel case 2 and the bottom of upper frame 3, is damaged by pressure by glass during fixed flat planar glass for avoiding.
Described suspension assembly comprises hanger bracket 5, electromagnet 6, spring 7, laser pen 8 and DV9.Described hanger bracket 5 is wooden structures, is convenient to dismounting and safeguards, the more important thing is and save cost of manufacture greatly; The bar post of hanger bracket 5 to be xsects be quadrilateral.Be connected and fixed with the midpoint on pedestal 1 both sides respectively by thru-bolt bottom hanger bracket 5.Described electromagnet 6 is arranged on the central authorities of hanger bracket 5 top cross-bar by set bolt, the upper end of described spring 7 is fixed on electromagnet 6, and the lower end of spring 7 utilizes electromagnet 6 to adsorb impulse member 10.Here impulse member 10 lower end is the round platform that diameter upwards increases gradually, the upper end of impulse member 10 is cylinders that diameter is identical with lower end round platform maximum gauge, and the top center place of impulse member 10 has a degree of depth to be the cylindrical pit of 4-8mm, spring 7 can insert pit absorption impulse member 10, slides when contacting with spring 7 for avoiding impulse member 10.On a trestle of hanger bracket 5, four sides indicates scale, another trestle of hanger bracket 5 is tied with row's laser pen 8, laser level can be radiated on the graduated trestle of mark and form luminous point by laser pen 8, and when described impulse member 10 drops from spring 7 time, impulse member 10 can cover laser pen 8 and irradiate laser to indicating scale trestle.Described DV9 is arranged on suspension assembly, for taking the position of luminous point on scale.
In the middle of actual mechanical process, large flat cover plate is placed on the step of supporting steel case 2, and 4 steel bars of upper frame 3, by screw and supporting steel case 2 compact siro spinning technology, guarantee that glass there will not be vibration, skew in the middle of repeat impact process.By regulating the size of electromagnetic force, allow spring 7 can store certain energy.The energy of spring 7 can be calculated by two kinds of modes, and one is according to formula E=1/2kx
2, by measuring the deformation extent of spring 7, the energy that spring 7 stores directly can be calculated.Another kind method by measure impulse member 10 drop 1m time speed, according to law of conservation of energy, can calculate spring 7 store energy.
Press Electromagnetic push-button, abrupt release impulse member 10, pounds on a glass.The red line that laser pen 8 is formed is incident upon on the graduated trestle of mark, and the impulse member 10 of bounce-back can cover red line, and the situation of change recording red line by DV9, can draw the maximum height that impulse member 10 can reach, calculate the bounce-back speed of impulse member 10.Process of the test is convenient succinct, can repeatedly repeatable operation, and accuracy is high.
The impulse member 10 that the present embodiment adopts also can replace to the sharp instrument of other shapes, but will guarantee that the gravitional force of impulse member 10 and elastic potential energy will reach the impact energy 64J of GA 844-2009.
Finally, it should be noted that above what enumerate is only specific embodiments of the invention.Obviously, the invention is not restricted to above embodiment, a lot of distortion can also be had.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention, all should think protection scope of the present invention.
Claims (7)
1. an apparatus for impact testing for large-scale cover plate, comprises clamp assemblies and suspension assembly, it is characterized in that, described clamp assemblies comprises pedestal, supporting steel case, upper frame, rubber washer; Described supporting steel case welds by 4 block plates the hollow square body steel case formed, the upper end of every block plate is processed with an identical step, the large flat cover plate of shock-testing is needed to carry out for placing, the lower end of every block plate is weldingly fixed on pedestal respectively, for supporting steel case is fixed on base central; Described upper frame is the framework surrounded by 4 steel bars, by bolt and supporting steel case compact siro spinning technology; Described rubber washer is bonded in the bottom of upper frame, can when the top of supporting steel case is connected with the bottom of upper frame, between the top being arranged on supporting steel case and the bottom of upper frame;
Described suspension assembly comprises hanger bracket, electromagnet, spring, laser pen and DV; The bar post of described hanger bracket to be xsect be quadrilateral, bar post is inverted u-shaped structure, and the upper end of inverted u-shaped structure is top cross-bar, and the both sides of inverted u-shaped structure are trestle; The bottom of hanger bracket, the i.e. lower end of two trestles, be connected and fixed with the both sides midpoint of pedestal respectively by thru-bolt; Described electromagnet is arranged on the central authorities of hanger bracket top cross-bar by set bolt, and the upper end of spring is fixed on electromagnet, and the lower end of spring can utilize electromagnet to adsorb impulse member; On a trestle of hanger bracket, four sides indicates scale, another trestle of hanger bracket is tied with row's laser pen, laser level can be radiated on the graduated trestle of mark and form luminous point by laser pen, and when described impulse member drops from spring time, impulse member can cover laser pen and irradiate to the laser indicating scale trestle; Described DV is arranged on suspension assembly, for taking the position of luminous point on scale.
2. apparatus for impact testing according to claim 1, is characterized in that, the step width of described supporting steel case is not less than 20mm.
3. apparatus for impact testing according to claim 1, is characterized in that, described pedestal is steel plate.
4. apparatus for impact testing according to claim 1, is characterized in that, described hanger bracket is wooden hanger bracket.
5. the apparatus for impact testing according to Claims 1-4 any one, is characterized in that, described apparatus for impact testing also comprises impulse member, and gravitional force and the elastic potential energy sum of impulse member can reach 64J.
6. apparatus for impact testing according to claim 5, is characterized in that, the lower end of described impulse member is the round platform that diameter upwards increases gradually, and the upper end of impulse member is the cylinder that diameter is identical with lower end round platform maximum gauge.
7. apparatus for impact testing according to claim 5, is characterized in that, the top center of described impulse member is provided with the cylindrical pit that a degree of depth is 4 ~ 8mm, and spring can insert pit absorption impulse member.
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Cited By (10)
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---|---|---|---|---|
CN105606471A (en) * | 2015-12-25 | 2016-05-25 | 温州经济技术开发区滨海志杰机电产品设计工作室 | Copper alloy glass detection equipment provided with handle rotary table, rack, camera and wheel and pressure plate assembly |
CN105606445A (en) * | 2015-12-25 | 2016-05-25 | 温州经济技术开发区滨海志杰机电产品设计工作室 | Glass detection instrument adopting worm gear bedplate, rack camera and bearing clamp plate with aluminum alloy plating |
CN105758717A (en) * | 2016-04-09 | 2016-07-13 | 温州经济技术开发区滨海雄杰机电研发工作室 | Optical-ring photographing type glass detection device provided with disc wheel, rotary table and nickel alloy V-shaped groove corner clamp |
CN106066290A (en) * | 2016-05-26 | 2016-11-02 | 湘潭大学 | A kind of coating failure assay device considered under load impacting and thermal shock common loop effect |
CN108593467A (en) * | 2018-05-15 | 2018-09-28 | 安徽天卓信息技术有限公司 | A kind of glass impact tester with protective action |
CN109323937A (en) * | 2018-11-23 | 2019-02-12 | 浙江大学 | A kind of Hopkinson pressure bar damping unit |
CN109556976A (en) * | 2018-10-29 | 2019-04-02 | 武汉华星光电技术有限公司 | Support jig and falling sphere test method |
CN109765130A (en) * | 2019-03-05 | 2019-05-17 | 安徽理工大学 | A kind of multi-function device of concrete material impact test |
CN111829911A (en) * | 2020-07-14 | 2020-10-27 | 北京建筑材料科学研究总院有限公司 | Performance measuring device for filling leveling layer on floating ground |
CN112432843A (en) * | 2020-11-28 | 2021-03-02 | 张桐 | Device and method for detecting puncture resistance of multilayer laminated glass |
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105606471A (en) * | 2015-12-25 | 2016-05-25 | 温州经济技术开发区滨海志杰机电产品设计工作室 | Copper alloy glass detection equipment provided with handle rotary table, rack, camera and wheel and pressure plate assembly |
CN105606445A (en) * | 2015-12-25 | 2016-05-25 | 温州经济技术开发区滨海志杰机电产品设计工作室 | Glass detection instrument adopting worm gear bedplate, rack camera and bearing clamp plate with aluminum alloy plating |
CN105758717A (en) * | 2016-04-09 | 2016-07-13 | 温州经济技术开发区滨海雄杰机电研发工作室 | Optical-ring photographing type glass detection device provided with disc wheel, rotary table and nickel alloy V-shaped groove corner clamp |
CN106066290A (en) * | 2016-05-26 | 2016-11-02 | 湘潭大学 | A kind of coating failure assay device considered under load impacting and thermal shock common loop effect |
CN106066290B (en) * | 2016-05-26 | 2018-08-28 | 湘潭大学 | A kind of coating failure experimental rig considered under load impacting and the effect of thermal shock common loop |
CN108593467B (en) * | 2018-05-15 | 2020-07-03 | 安徽天卓信息技术有限公司 | Glass impact tester with protective effect |
CN108593467A (en) * | 2018-05-15 | 2018-09-28 | 安徽天卓信息技术有限公司 | A kind of glass impact tester with protective action |
CN109556976A (en) * | 2018-10-29 | 2019-04-02 | 武汉华星光电技术有限公司 | Support jig and falling sphere test method |
CN109323937A (en) * | 2018-11-23 | 2019-02-12 | 浙江大学 | A kind of Hopkinson pressure bar damping unit |
CN109323937B (en) * | 2018-11-23 | 2023-10-31 | 浙江大学 | Hopkinson pressure bar damping device |
CN109765130A (en) * | 2019-03-05 | 2019-05-17 | 安徽理工大学 | A kind of multi-function device of concrete material impact test |
CN111829911A (en) * | 2020-07-14 | 2020-10-27 | 北京建筑材料科学研究总院有限公司 | Performance measuring device for filling leveling layer on floating ground |
CN112432843A (en) * | 2020-11-28 | 2021-03-02 | 张桐 | Device and method for detecting puncture resistance of multilayer laminated glass |
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Application publication date: 20151028 |