CN216696017U - Metal material striking spark testing arrangement - Google Patents
Metal material striking spark testing arrangement Download PDFInfo
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- CN216696017U CN216696017U CN202123306940.8U CN202123306940U CN216696017U CN 216696017 U CN216696017 U CN 216696017U CN 202123306940 U CN202123306940 U CN 202123306940U CN 216696017 U CN216696017 U CN 216696017U
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- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 239000007769 metal material Substances 0.000 title claims abstract description 20
- 238000004880 explosion Methods 0.000 claims abstract description 67
- 238000010304 firing Methods 0.000 claims abstract description 33
- 238000002474 experimental method Methods 0.000 claims abstract description 21
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 27
- 239000000428 dust Substances 0.000 description 7
- 239000003245 coal Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- 235000013312 flour Nutrition 0.000 description 3
- 238000009700 powder processing Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010892 electric spark Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000009781 safety test method Methods 0.000 description 1
- 239000011257 shell material Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a metal material impact spark testing device which comprises a striker free falling pipe, a spark testing striker, an explosion protection cover, an explosion groove, an angle regulator and a high-speed impact experiment board, wherein the striker free falling pipe is arranged on the lower part of the striker; the high-speed impact experiment board is arranged on the base through an angle regulator, the upper end of the explosion groove is connected with a firing pin free-falling body pipe, a spark test firing pin freely falls in the firing pin free-falling body pipe and collides with the high-speed impact experiment board, an explosion protection cover is arranged above the explosion groove, and an explosion observation hole is arranged on the explosion protection cover; the side end of the explosion groove is connected with an inflation hose and an inflation pipe, and the inflation hose is connected with a gas composition regulating valve. The utility model solves the problems of complex equipment, large occupied area, potential safety hazard and the like of the existing testing device.
Description
Technical Field
The utility model relates to a metal material impact spark testing device, and belongs to the field of material testing.
Background
With the development of nano materials and the improvement of mechanization degree, metal alloy materials are widely applied in industries such as coal mines, non-ferrous metal ores, organic powder processing and the like. In the using process, sparks generated by metal friction and impact are easy to explode in a specific environment, for example, gas is often overflowed in the coal mining process, mechanical parts such as coal mining machines and the like are easy to explode due to friction and collision in working, the dust concentration is too high in some flour factories and nonferrous metal powder processing factories, the sparks generated by impact friction are easy to explode, and materials used in the occasions also need to be non-spark materials. However, the friction materials used in these locations have been common steels or other alloys due to the operating conditions that have limited them to date. In order to ensure the production safety of coal mines and the like, all unsafe factors related to friction sparks must be eliminated as much as possible, and the most important is that the metal materials used for the products must have safety. How to test the spark safety characteristics of materials is a problem at present.
Currently, in the field of coal mine production, three detection systems of high-speed impact, drop hammer impact and rotary friction exist, and a safety test method and a judgment rule for metal material friction sparks for coal mines exist. Therefore, the development and design of a safe and effective material spark performance testing device is imperative.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides a metal material impact spark testing device, which solves the problems of complex equipment, large occupied area, potential safety hazard and the like of the conventional testing device.
In order to achieve the purpose, the metal material impact spark testing device comprises a firing pin free falling body pipe, a spark testing firing pin, an explosion protection cover, an explosion groove, an angle regulator and a high-speed impact experiment board, wherein the firing pin free falling body pipe is arranged on the firing pin free falling body pipe;
the high-speed impact experiment board is arranged on the base through an angle regulator, the upper end of the explosion groove is connected with a firing pin free-falling body pipe, a spark test firing pin freely falls in the firing pin free-falling body pipe and collides with the high-speed impact experiment board, an explosion protection cover is arranged above the explosion groove, and an explosion observation hole is arranged on the explosion protection cover;
the side end of the explosion groove is connected with an inflation hose and an inflation pipe, and the inflation hose is connected with a gas composition regulating valve.
As an improvement, the spark test firing pin is made of 45 steel, and the hardness is HRC50 +/-2.
As a refinement, the tip of the spark test firing pin is hemispherical.
As a modification, the explosion tank is filled with combustible substances and air.
As an improvement, the explosion protection cover is filled with water or ceramic fibers.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the safety is strong. The metal material impact spark testing device does not relate to electromechanical devices and the like, so that the influence of electric sparks on safety is reduced; the explosion tank of the device is small in size, and the protective cover is filled with explosion-proof materials, so that the risk of explosion is reduced.
(2) The sensitivity is high. The contact area of the spark test firing pin and the high-speed impact experiment board is small, the unit impact power is large, the sensitivity of the experiment is improved, and the reliability of the spark test is improved more effectively.
(3) The device and the test method are simple and low in cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the spark test striker of the present invention;
in the figure: 1. the device comprises a striker free falling body pipe, 2, a spark testing striker, 3, an explosion shield, 4, an explosion groove, 5, an angle regulator, 6, a high-speed impact experiment board, 7, a base, 8, an inflation pipe, 9, an explosion observation hole, 10, an inflation hose, 11 and a gas composition regulating valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the utility model and not to limit the scope of the utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention.
As shown in fig. 1, a metal material impact spark testing device comprises a striker free falling body tube 1, a spark testing striker 2, an explosion shield 3, an explosion groove 4, an angle regulator 5 and a high-speed impact experiment board 6;
a base 7 is installed in the explosion groove 4, a high-speed impact experiment board 6 is installed on the base 7 through an angle regulator 5, the upper end of the explosion groove 4 is connected with a firing pin free falling body pipe 1, a spark test firing pin 2 freely falls in the firing pin free falling body pipe 1 and collides with the high-speed impact experiment board 6, an explosion protection cover 3 is installed above the explosion groove 4, and an explosion observation hole 9 is installed on the explosion protection cover 3;
the side end of the explosion groove 4 is connected with an inflation hose 10 and an inflation pipe 8, and the inflation hose 10 is connected with a gas composition regulating valve 11.
The material of the spark test firing pin 2 is 45 steel, and the material is subjected to quenching and low-temperature tempering heat treatment, the hardness is HRC50 +/-2, and the size is
The tip of the steel needle and the tip of the spark test firing pin 2 are hemispheric, and S phi is 0.5 mm;
the high-speed impact experiment plate 6 is made of tested materials, such as a shell material of gray cast iron, machine part carbon steel and alloy steel, tool material alloy steel and the like;
the striker free falling body tube 1 is made of high molecular materials such as PP, PVC, UHMWPE and the like, and can avoid unnecessary sparks generated by friction with the striker;
the filling material in the explosion groove 4 is premixed gas which is formed by uniformly mixing combustible materials (such as combustible gas, steam and dust) and air (or oxygen) within a certain concentration range (explosion concentration limit); the volume of the explosion tank is 0.1m3(0.5m*0.5m*0.4m)；
The explosion protection cover 3 is filled with explosion-proof substances such as water, ceramic fibers and the like for safety protection.
The testing method of the metal material impact spark testing device comprises the following steps:
1) a base 7 is arranged in the explosion groove 4, a high-speed impact experiment plate 6 made of a material to be tested is arranged on the base 7, and the installation and impact angle of the experiment plate can be adjusted through an angle adjuster 5; the angle regulator 5 can adopt a clamping groove type angle regulator, a plurality of clamping groove angles are designed, the regulator is stably and uniformly stressed, and the impact force release condition cannot occur;
2) the pre-mixed gas which is formed by uniformly mixing combustible materials (combustible gas such as methane, steam and dust) and air (or oxygen) in a certain concentration range (explosion concentration limit) is filled into the explosion tank 4 through an inflation tube 8 and an inflation hose 10; during inflation, the gas composition of the filling gas is adjusted by the gas composition adjusting valve 11;
3) the explosion protection cover 3 is filled with explosion-proof substances such as water, ceramic fiber and the like for safety protection;
4) freely falling from high altitude along a firing pin free falling body pipe 1, enabling a spark test firing pin 2 to impact an experimental plate at high speed, and if a spark is generated or not, detonating combustible mixed gas or dust mixed gas in an explosion groove 4 from an explosion observation hole 9; taking 50 times as the test times according to the small probability standard;
5) and observing whether the material to be tested generates sparks or causes explosion when colliding with the firing pin. And recording the relationship between the striker falling height, the experimental panel angle, the premixed gas concentration and the experimental results.
The combustible material filled in the explosion tank 4 is different according to the application place:
when a metal material impacts a spark test in a gas environment, filling gas premixed gas into the explosion groove 4;
when a metal material spark test is carried out in a non-ferrous metal powder processing production place, filling non-ferrous metal dust premixed gas into the explosion groove 4;
when testing the spark of the metal material in the processing and production place of the flour mill, filling flour dust premixed gas into the explosion groove 4;
when the spark test of the metal material is carried out in the processing and production place of the cotton processing factory, the pre-mixed gas of the cotton dust is filled in the explosion groove 4.
Example 1
Tool material GCr15 impact spark test in a gas environment:
1) a base 7 is arranged in the explosion tank 4, a high-speed impact experiment plate 6 made of GCr15 is arranged on the base 7, and the installation and impact angle of the experiment plate is adjusted to be 45 degrees by an angle adjuster 5;
2) gas mixture (gas concentration is 10%) is filled into the explosion groove 4 through the gas filling pipe 8 and the gas filling hose 10;
3) the explosion protection cover 3 is filled with aluminum silicate ceramic fiber (explosion-proof fiber) for safety protection;
4) the spark test firing pin 2 freely falls from the high altitude of 19.6 meters along the firing pin free falling body pipe 1, the firing pin impacts the experimental plate at high speed, whether a spark is generated or not is seen from the explosion observation hole 9, and the combustible mixed gas in the explosion groove 4 is detonated; taking 50 times as the test times according to the small probability standard;
5) and observing whether the material to be tested generates sparks or causes explosion when colliding with the firing pin. And recording the relationship between the striker fall height, the panel angle, the premix gas concentration and the experimental results.
The device does not relate to electromechanical devices and the like, so that the influence of electric sparks on safety is reduced; the volume of an explosion tank of the device is small, and the explosion-proof material is filled in the protective cover, so that the risk of explosion is reduced; the contact area of the firing pin and the experimental plate is small, the unit impact power is large, the sensitivity of the experiment is improved, and the reliability of the spark test is improved more effectively; the testing method is simple and has strong operability.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. A metal material impact spark testing device is characterized by comprising a firing pin free falling pipe (1), a spark testing firing pin (2), an explosion protection cover (3), an explosion groove (4), an angle regulator (5) and a high-speed impact experiment board (6);
a base (7) is installed in the explosion groove (4), a high-speed impact experiment board (6) is installed on the base (7) through an angle regulator (5), the upper end of the explosion groove (4) is connected with a firing pin free falling body pipe (1), a spark test firing pin (2) freely falls in the firing pin free falling body pipe (1) and collides with the high-speed impact experiment board (6), an explosion protection cover (3) is installed above the explosion groove (4), and an explosion observation hole (9) is installed on the explosion protection cover (3);
the side end of the explosion groove (4) is connected with an inflation hose (10) and an inflation pipe (8), and the inflation hose (10) is connected with a gas composition regulating valve (11).
2. The metallic material impact spark testing device of claim 1, wherein the spark testing firing pin (2) is 45 steel with a hardness of HRC50 ± 2.
3. A metallic material impact spark testing device as defined in claim 2 wherein the tip of said spark testing firing pin (2) is hemispherical.
4. A metallic material impact spark testing device according to claim 1, wherein said explosion tank (4) is filled with combustible material and air.
5. A metallic material impact spark testing device according to claim 1, wherein said explosion proof enclosure (3) is filled with water or ceramic fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123306940.8U CN216696017U (en) | 2021-12-27 | 2021-12-27 | Metal material striking spark testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123306940.8U CN216696017U (en) | 2021-12-27 | 2021-12-27 | Metal material striking spark testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216696017U true CN216696017U (en) | 2022-06-07 |
Family
ID=81845022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123306940.8U Active CN216696017U (en) | 2021-12-27 | 2021-12-27 | Metal material striking spark testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216696017U (en) |
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2021
- 2021-12-27 CN CN202123306940.8U patent/CN216696017U/en active Active
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