CN109991075A - A kind of impact test loading system - Google Patents
A kind of impact test loading system Download PDFInfo
- Publication number
- CN109991075A CN109991075A CN201910192171.1A CN201910192171A CN109991075A CN 109991075 A CN109991075 A CN 109991075A CN 201910192171 A CN201910192171 A CN 201910192171A CN 109991075 A CN109991075 A CN 109991075A
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- drill steel
- loading
- impact test
- bench
- test specimen
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- 238000009863 impact test Methods 0.000 title claims abstract description 39
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 85
- 239000010959 steel Substances 0.000 claims abstract description 85
- 238000012360 testing method Methods 0.000 claims abstract description 60
- 239000011888 foil Substances 0.000 claims abstract description 16
- 238000003860 storage Methods 0.000 claims abstract description 5
- 230000003116 impacting effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 5
- 239000011435 rock Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/066—Special adaptations of indicating or recording means with electrical indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/068—Special adaptations of indicating or recording means with optical indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/001—Impulsive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0039—Hammer or pendulum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0617—Electrical or magnetic indicating, recording or sensing means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to impact test fields, provide a kind of impact test loading system, including impact test loading frame, electric measuring system and light measuring system, test specimen loading bench, drill steel loading bench and system of dropping hammer are provided on impact test loading frame；Drill steel is provided on drill steel loading bench；Electric measuring system includes foil gauge, high dynamic strain indicator and signal the storage analyzer being sequentially connected electrically, and foil gauge is arranged on drill steel；Light measuring system includes light source, the first photoelastic device, the second photoelastic device, delay controller, camera and work station；System of dropping hammer and drill steel are electrically connected with delay controller, and delay controller, camera and work station are sequentially connected electrically.The system is provided with electric measuring system and light measuring system, camera is controlled by delay controller to be shot when test specimen is impacted, electric measuring system acquires strain parameter of the drill steel in impact test piece by foil gauge simultaneously, to realize carry out synchronous with test specimen stress picture collection to the acquisition of drill steel strain parameter.
Description
Technical field
The present invention relates to the impact test fields of material, and in particular to a kind of impact test loading system.
Background technique
Impact test under the conditions of electrical measurement is a kind of shadow by foil gauge to input parameter and crushing efficiency in drill steel
The research that rule carries out is rung, is the effective ways for disclosing Rock in Well impact grinding.But this impact test is difficult to be tried
Part is relatively simple for the analytic angle of test specimen by the optical image in impact process.So lacking the pricker in impact process
The research of stress distribution law Mutual Influence Law in bar in stress wave and test specimen.
It would therefore be highly desirable to be improved to existing impact test loading system.
Summary of the invention
The object of the present invention is to provide a kind of impact test loading systems, to solve to acquire in impact test in the prior art
Information is relatively simple, the stress distribution law in drill steel in stress wave and test specimen is difficult to the problem of acquiring simultaneously.
The present invention is based on impact experiment, as photoelastic method and electric measuring method synchronize the pilot system that uses, can reveal that
Influence of the output parameter to crushing efficiency and the test specimen internal stress regularity of distribution under the conditions of impact in drill steel is underground rock fracture in dynamic indentation
High-efficient homework provide theories integration.
To achieve the above object, the present invention provides a kind of impact test loading systems, comprising:
Impact test loading frame is provided with test specimen loading bench on the impact test loading frame, is located at the test specimen and loads
Drill steel loading bench above platform and the system of dropping hammer above the drill steel loading bench；The test specimen loading bench is for placing
Test specimen is provided with drill steel on the drill steel loading bench, and the system of dropping hammer is for impacting the drill steel；
Electric measuring system, the electric measuring system include foil gauge, high dynamic strain indicator and the signal storage being sequentially connected electrically
Analyzer, the foil gauge are arranged on the drill steel；
Light measuring system, the light measuring system include light source, the first photoelastic device, the second photoelastic device, delay controller, phase
Machine and work station；The light of the light source transmitting can sequentially pass through first photoelastic device, test specimen and the second photoelastic device
And reach the camera；It is described to drop hammer system and the drill steel is electrically connected with the delay controller, so that the delay is controlled
Device processed obtains the attack time, and the delay controller is electrically connected with the phase mechatronics, the camera with the work station.
Optionally, first through hole is offered on the drill steel loading bench, the drill steel passes through the first through hole, and described
Drill steel is equipped at intervals with insulating washer with the drill steel loading bench.
Optionally, drill steel guide table is provided between the drill steel loading bench and the test specimen loading bench, the drill steel is led
The second through-hole is offered on platform, the first through hole and second through-hole are coaxial, and the drill steel passes through second through-hole,
And it can be slided in second through-hole.
Optionally, the foil gauge is between the drill steel guide table and the drill steel loading bench.
Optionally, the system of dropping hammer includes bracket, sliding rail and drops hammer, and the bracket is fixed on the drill steel loading bench
On, the sliding rail is arranged on the bracket, and can be set on the sliding rail along the bracket slide, described drop hammer, institute
It states to drop hammer and be electrically connected with the delay controller.
Optionally, the light source is LED flashing white lamp.
Optionally, first photoelastic device include the first testing stand, the first lens and the first photo-elastic instrument, described first
Lens and first photo-elastic instrument are all set on the first track on first testing stand, and can be along first track
It is mobile, the direction setting of transmitting of first track along the light source.
Optionally, second photoelastic device include the second testing stand, the second lens and the second photo-elastic instrument, described second
Lens and second photo-elastic instrument are all set on the second track on second testing stand, and can be along second track
It is mobile, the direction setting of transmitting of second track along the light source.
Optionally, it is provided with sample stent on the test specimen loading bench, is used to support the test specimen.
Optionally, the light source is arranged on the first tripod, and the camera is arranged on the second tripod.
It is not only provided with electric measuring system by the impact test loading system, but also is provided with light measuring system, passes through delays time to control
Device control camera is shot at the time of test specimen is impacted, while electric measuring system acquires drill steel by foil gauge and tries in impact
Strain parameter when part, to realize, the acquisition to drill steel strain parameter is synchronous with test specimen stress picture collection to be carried out, and is taken off
Show influence of the output parameter under the conditions of impacting in drill steel to crushing efficiency and the test specimen internal stress regularity of distribution, is underground impact cutting
The high-efficient homework of rock provides theories integration.
Detailed description of the invention
Fig. 1 is the schematic diagram of impact test loading system in an embodiment of the present invention；
Fig. 2 is the front schematic view of impact test loading frame in an embodiment of the present invention；
Fig. 3 is the index path of impact test loading system in an embodiment of the present invention；
Fig. 4 is the assembling schematic diagram of drill steel and insulating washer in an embodiment of the present invention.
Appended drawing reference:
1- test specimen；
10- impact test loading frame；11- test specimen loading bench；111- sample stent；12- drill steel loading bench；13-, which drops hammer, is
System；131- bracket；132- sliding rail；133- drops hammer；14- drill steel；15- insulating washer；16- drill steel guide table；
20- electric measuring system；21- foil gauge；22- high dynamic strain indicator；23- signal stores analyzer；
30- light measuring system；31- light source；The first tripod of 311-；The first photoelastic device of 32-；The first testing stand of 321-；
The first lens of 322-；The first photo-elastic instrument of 323-；The first track of 324-；The second photoelastic device of 33-；The second testing stand of 331-；332-
Second lens；The second photo-elastic instrument of 333-；The second track of 334-；34- delay controller；35- camera；The second tripod of 351-；36-
Work station.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawings and examples
The present invention is described in further detail.It is understood that described embodiment is a part of the embodiments of the present invention,
Instead of all the embodiments.Specific embodiment described herein is used only for explaining the present invention, rather than to limit of the invention
It is fixed.Based on described the embodiment of the present invention, those of ordinary skill in the art's every other embodiment obtained is belonged to
The scope of protection of the invention.
Present embodiment provides a kind of impact test loading system, and refering to fig. 1, which includes: punching
Hit test loading frame 10, electric measuring system 20 and light measuring system 30.
In conjunction with Fig. 2, it is provided with test specimen loading bench 11 on the impact test loading frame 10, is located at the test specimen loading bench 11
The drill steel loading bench 12 of top and the system 13 of dropping hammer above the drill steel loading bench 12；The test specimen loading bench 11 is used
In placing test specimen 1, drill steel 14 is provided on the drill steel loading bench 12, the system 13 of dropping hammer is for carrying out the drill steel 14
Impact；
The electric measuring system 20 includes foil gauge 21, high dynamic strain indicator 22 and signal the storage analysis being sequentially connected electrically
Instrument 23, the foil gauge 21 are arranged on the drill steel 14；
The light measuring system 30 include light source 31, the first photoelastic device 32, the second photoelastic device 33, delay controller 34,
Camera 35 and work station 36；Work station 36 can be computer equipment.The light that the light source 31 emits can sequentially pass through described
First photoelastic device 32, test specimen 1 and the second photoelastic device 32 finally reach camera 35；System of dropping hammer 13 and the drill steel 14 are equal
Be electrically connected with the delay controller 34 so that the delay controller 34 obtains the attack time, the delay controller 34 with
The camera 35 is electrically connected, and the camera 35 is electrically connected with the work station 36.
Through the above scheme, when the system of dropping hammer 13 impacts drill steel 14, high dynamic strain indicator 22 is adopted by foil gauge 21
Collect the strain parameter of drill steel 14, and strain parameter is delivered to signal storage analyzer 23 and is stored；Meanwhile it being connect in the system of dropping hammer 13
At the time of touching drill steel 14, delay controller 34 records the moment and triggers light source 31 and camera 35, and light source 31 is opened, camera 35
Test specimen 1 is shot, and is transmitted to work station 36, work station 36 can obtain variation of the test specimen 1 when being hit by analysis
Situation, to obtain stress distribution law.It may be implemented as a result, by the impact test loading system to 14 strain parameter of drill steel
Acquisition it is synchronous with 1 stress picture collection of test specimen carry out, disclose the output parameter under the conditions of impact in drill steel 14 to broken effect
The influence of the 1 internal stress regularity of distribution of rate and test specimen, the high-efficient homework for underground rock fracture in dynamic indentation provide theories integration.
Specifically, first through hole is offered on the drill steel loading bench 12, the drill steel 14 passes through the first through hole, and
Drill steel 14 is equipped at intervals with insulating washer 15 with drill steel loading bench 12, and insulating washer 15 is for guaranteeing drill steel 14 and system 13 of dropping hammer
Between good insulating properties.Refering to Fig. 4, the shape of drill steel 14 is nail-like, and insulating washer 15 has a step cutting pattern, felt pad
15 centers are enclosed with through-hole, drill steel 14 is interspersed in the through hole.
In order to guarantee drill steel 14 impact direction stability, the drill steel loading bench 12 and the test specimen loading bench 11 it
Between be provided with drill steel guide table 16, the second through-hole, the first through hole and described second are offered in the drill steel guide table 16
Through-hole is coaxial, and the drill steel 14 passes through the second through-hole, and can slide in second through-hole.Second through-hole can be to drill steel 14
Play the role of guiding, guarantees steadily impact test piece 1 of drill steel 14.
Preferably, the foil gauge 21 is between the drill steel guide table 16 and the drill steel loading bench 12.
For the system of dropping hammer 13, main function be to drill steel 14 implement impact, concrete form can there are many, this field
Technical staff can be specifically arranged according to respective demand, and it is as follows that present embodiment provides a kind of embodiment: system of dropping hammer 13 is wrapped
It includes bracket 131, sliding rail 132 and drops hammer 133, the bracket 131 is fixed on the drill steel loading bench 12, the sliding rail 132
It is set on the bracket 131, and can be slided along the bracket 131, described drop hammer 133 is set on the sliding rail 132, falls
Hammer 133 is electrically connected with delay controller 34, herein, drop hammer 133 and drill steel 14 be all conductor, therefore, the energy when the two contacts
Enough conducting wires, to excite, delay controller 34 controls light source 31 and camera 35 works, and triggers light source 31 certainly and camera 35 works
Mode be not limited to this, as long as can guarantee that light source 31 and camera 35 are started to work i.e. at the time of drill steel 14 is impacted
It can.Preferably, the light source is LED flashing white lamp, so as to add the use of beam expanding lens instead of laser beam.
Further, first photoelastic device 32 includes the first testing stand 321, the first lens 322 and the first photo-elastic instrument
323, first lens 322 and first photo-elastic instrument 323 are all set in the first track on first testing stand 321
It on 324, and can be moved along first track 324, first track 324 is set along the direction of the transmitting of the light source 31
It sets.Wherein, first lens 322 lean on close to sources 31, and the first photo-elastic instrument 323 is close to impact test loading frame 10.Second is photoelastic
Device 33 includes the second testing stand 331, the second lens 332 and the second photo-elastic instrument 333, the second lens 332 and the second photo-elastic instrument
333 are all set in 334 on the second track on the second testing stand 331, and can move along second track 334, and described
Two tracks 334 are arranged along the direction of the transmitting of the light source 31.In conjunction with Fig. 3, the first testing stand 321 and the second testing stand 331 are set
It is placed in same level height, in Fig. 3, S1 is light source point, and S3 is the middle line of optical path, which actually can't see for reader's understanding,
S2 is optical receiver point.Light source point S1, the central point of the first lens 322, the central point of the first photo-elastic instrument 323, second lens 332
Central point, the central point of the second photo-elastic instrument 333, optical receiver point S2 are located on S3 line, i.e., on same straight line.Wherein,
The first track 324 and the second track 334 is respectively set on one testing stand 321 and the second testing stand 331, it is ensured that lens and photoelastic
The mobile accuracy of instrument, avoids left and right deviation, improves experiment optical path adjusting speed, accelerates experiment process.
It is provided with sample stent 111 on the test specimen loading bench 11, is used to support test specimen 1.For test specimen 1, can use
Material with temporary birefrigent property.In the present embodiment, test specimen 1 is epoxy resin board.
The light source 31 is arranged on the first tripod 311, and the camera 35 is arranged on the second tripod 351, and first
The height of tripod 311 and the second tripod 351 is adjustable.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of impact test loading system characterized by comprising
Impact test loading frame is provided with test specimen loading bench on the impact test loading frame, is located on the test specimen loading bench
The drill steel loading bench of side and the system of dropping hammer above the drill steel loading bench；The test specimen loading bench is for placing examination
Part is provided with drill steel on the drill steel loading bench, and the system of dropping hammer is for impacting the drill steel；
Electric measuring system, the electric measuring system include foil gauge, high dynamic strain indicator and signal the storage analysis being sequentially connected electrically
Instrument, the foil gauge are arranged on the drill steel；
Light measuring system, the light measuring system include light source, the first photoelastic device, the second photoelastic device, delay controller, camera with
And work station；The light of the light source transmitting can sequentially pass through first photoelastic device, test specimen and the second photoelastic device and arrive
Up to the camera；It is described to drop hammer system and the drill steel is electrically connected with the delay controller, so that the delay controller
The attack time is obtained, the delay controller is electrically connected with the phase mechatronics, the camera with the work station.
2. impact test loading system according to claim 1, which is characterized in that offer on the drill steel loading bench
One through-hole, the drill steel pass through the first through hole, and the drill steel and the drill steel loading bench are equipped at intervals with insulating washer.
3. impact test loading system according to claim 2, which is characterized in that the drill steel loading bench and the test specimen
Be provided with drill steel guide table between loading bench, offer the second through-hole in the drill steel guide table, the first through hole with it is described
Second through-hole is coaxial, and the drill steel passes through second through-hole, and can slide in second through-hole.
4. impact test loading system according to claim 3, which is characterized in that the foil gauge, which is located at the drill steel, leads
Between drill steel loading bench described in Xiang Taihe.
5. impact test loading system according to claim 1, which is characterized in that the system of dropping hammer includes bracket, cunning
It rail and drops hammer, the bracket is fixed on the drill steel loading bench, and the sliding rail is arranged on the bracket, and can be along institute
Bracket slide is stated, described drop hammer is set on the sliding rail, and described drop hammer is electrically connected with the delay controller.
6. impact test loading system according to claim 1, which is characterized in that the light source is LED flashing white lamp.
7. impact test loading system according to claim 6, which is characterized in that first photoelastic device includes first
Testing stand, the first lens and the first photo-elastic instrument, first lens and first photo-elastic instrument are all set in first examination
It tests on the first track on platform, and can be moved along first track, the side of transmitting of first track along the light source
To setting.
8. impact test loading system according to claim 6, which is characterized in that second photoelastic device includes second
Testing stand, the second lens and the second photo-elastic instrument, second lens and second photo-elastic instrument are all set in second examination
It tests on the second track on platform, and can be moved along second track, the side of transmitting of second track along the light source
To setting.
9. impact test loading system according to claim 1, which is characterized in that be provided with examination on the test specimen loading bench
Part bracket is used to support the test specimen.
10. impact test loading system according to claim 1, which is characterized in that the light source is arranged in the one or three foot
On frame, the camera is arranged on the second tripod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910192171.1A CN109991075A (en) | 2019-03-14 | 2019-03-14 | A kind of impact test loading system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910192171.1A CN109991075A (en) | 2019-03-14 | 2019-03-14 | A kind of impact test loading system |
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| CN109991075A true CN109991075A (en) | 2019-07-09 |
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| CN201910192171.1A Pending CN109991075A (en) | 2019-03-14 | 2019-03-14 | A kind of impact test loading system |
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Cited By (5)
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| CN110530741A (en) * | 2019-09-25 | 2019-12-03 | 辽宁工业大学 | It is a kind of can mass simultaneous test full-automatic drop hammer impact testing machine |
| CN110660306A (en) * | 2019-09-24 | 2020-01-07 | 湖北省地质局地球物理勘探大队 | Experimental device capable of simulating influence of hammering vibration and flowing water on karst collapse |
| CN111413221A (en) * | 2020-05-13 | 2020-07-14 | 中国矿业大学(北京) | Synchronous experimental system and method for correlation method of caustic lines, photoelastic and digital images |
| CN111707566A (en) * | 2020-06-24 | 2020-09-25 | 太原理工大学 | Experimental system for researching dynamic response of structure under impact load and application method |
| CN114563263A (en) * | 2022-03-29 | 2022-05-31 | 中国地质大学（武汉） | Device and method for simulating engineering impact induced karst collapse in seepage environment |
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| CN110660306A (en) * | 2019-09-24 | 2020-01-07 | 湖北省地质局地球物理勘探大队 | Experimental device capable of simulating influence of hammering vibration and flowing water on karst collapse |
| CN110530741A (en) * | 2019-09-25 | 2019-12-03 | 辽宁工业大学 | It is a kind of can mass simultaneous test full-automatic drop hammer impact testing machine |
| CN111413221A (en) * | 2020-05-13 | 2020-07-14 | 中国矿业大学(北京) | Synchronous experimental system and method for correlation method of caustic lines, photoelastic and digital images |
| CN111707566A (en) * | 2020-06-24 | 2020-09-25 | 太原理工大学 | Experimental system for researching dynamic response of structure under impact load and application method |
| CN114563263A (en) * | 2022-03-29 | 2022-05-31 | 中国地质大学（武汉） | Device and method for simulating engineering impact induced karst collapse in seepage environment |
| CN114563263B (en) * | 2022-03-29 | 2023-09-05 | 中国地质大学（武汉） | Experimental method for simulating engineering impact induced karst collapse device in seepage environment |
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