CN109781514B - Explosion-proof test tank - Google Patents
Explosion-proof test tank Download PDFInfo
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- CN109781514B CN109781514B CN201910259418.7A CN201910259418A CN109781514B CN 109781514 B CN109781514 B CN 109781514B CN 201910259418 A CN201910259418 A CN 201910259418A CN 109781514 B CN109781514 B CN 109781514B
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- 238000012360 testing method Methods 0.000 title claims abstract description 66
- 238000009863 impact test Methods 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000006073 displacement reaction Methods 0.000 claims description 19
- 239000008188 pellet Substances 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000003245 coal Substances 0.000 abstract description 6
- 239000002360 explosive Substances 0.000 abstract description 6
- 239000007769 metal material Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 12
- 230000006872 improvement Effects 0.000 description 7
- 238000004880 explosion Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 208000032544 Cicatrix Diseases 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000037387 scars Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention relates to the field of explosion-proof testing of metal materials used in coal mine production, in particular to an explosion-proof test tank. Including the jar body, the jar lid, jar wall top edge of the jar body is equipped with three piece at least locating lever with jar body central line parallel, every locating lever all runs through the jar lid and be clearance fit between with the jar lid, all locating lever tip that is located jar lid top all are fixed in on the locating plate, the locating plate center runs through along jar body central line has the threaded rod, and threaded rod bottom stretches out locating plate back and jar lid center fixed connection, and the locating plate upper surface is equipped with jar lid moving mechanism. The explosion-proof test tank disclosed by the invention has the advantages that the timing adjustment of the tank cover is not needed, the efficiency is high, the cost is low, the impact friction of the test projectile on the high-speed impact test plate can be observed, and whether the generated spark can ignite explosive gas or not is observed.
Description
Technical Field
The invention relates to the field of explosion-proof testing of metal materials used in coal mine production, in particular to an explosion-proof test tank.
Background
In the production process of coal mines, equipment, instruments and meters used are often impacted by external force and rubbed to generate high-temperature hot marks and high-temperature sparks. Under certain conditions, high-temperature hot scars and high-temperature sparks can cause coal mine gas and coal dust explosion accidents. Friction sparks are one of the potential ignition sources for causing coal mine gas explosions. The chemical property of the metal material is one of factors which mainly influence the ignition of friction sparks, and particularly the ignition rate of alloy materials containing Mg, sr and other elements is higher. Therefore, the use of more chemically reactive metals in the metallic materials for coal mines must be limited or restricted. On the premise of consistent structure of the alloy materials for test, experimental study proves that the impact height, the impact angle, the weight of the impact object and the environmental condition have influence on the ignition condition of the friction spark.
The impact friction spark test device is mainly used for testing whether sparks generated after friction occurs, such as impellers and shells of some mine ventilators and other equipment, light alloy lifting containers, light metal shells of instruments and the like, can ignite explosive gases. The working process is that the metal material of the tested equipment is manufactured into test pellets and a high-speed impact test board according to the specification, and the test pellets impact the test board with the dangerous angle which is most likely to generate friction sparks according to the maximum value which is equal to or close to the danger under the actual working condition through the pellet launching device, so that the friction sparks of the tested metal material under the high-speed impact working condition are simulated. In the test, paired metal is made into a pellet and a baffle plate, and the pellet is made to impact and rub the baffle plate arranged in explosive gas at a certain speed, so that whether the generated spark can ignite the explosive gas or not is observed.
At present, no report is made about a special explosion-proof tank for a high-speed friction spark test. There are also a number of problems with conventional explosion-proof cans:
1. the opening and closing of the tank cover are inconvenient and take a long time.
2. The tank cover needs to be adjusted regularly, and has low efficiency and high cost.
The common explosion-proof tank cover consists of a toothed clamp and a toothed end cover, and after the end cover and the tank body are buckled, the clamp is rotated to be locked, and the clamp is rotated by a hydraulic oil cylinder or air pressure. After long-term use, the flexibility of centering and rotating the clamp can be greatly affected, so that the position of the clamp needs to be adjusted regularly.
3. The inclination angle of the test board cannot be adjusted.
Disclosure of Invention
The invention provides an explosion-proof test tank for solving the problem that a special explosion-proof tank is not available in a high-speed friction spark test.
The invention is realized by the following technical scheme: the explosion-proof test tank comprises a tank body and a tank cover, wherein the upper edge of the tank wall of the tank body is provided with at least three positioning rods parallel to the central line of the tank body, each positioning rod penetrates through the tank cover and is in clearance fit with the tank cover, the end parts of all the positioning rods above the tank cover are fixed on a positioning plate, the center of the positioning plate penetrates through a threaded rod along the central line of the tank body, the bottom of the threaded rod extends out of the positioning plate and is fixedly connected with the center of the tank cover, the upper surface of the positioning plate is provided with a tank cover moving mechanism, the tank cover moving mechanism comprises a motor, a main bevel gear coaxially arranged on an output shaft of the motor and a secondary bevel gear meshed with the main bevel gear, and the inner circle of the secondary bevel gear is in threaded fit with the threaded rod;
the utility model discloses a jar body, including jar body, the valve of valve, the jar body, the valve of valve allows experimental shot to penetrate jar body inside, jar body surface is equipped with the servo motor that has absolute value encoder, coaxial mounting has the reduction gear on servo motor's the output shaft, the output of reduction gear stretches into jar internal portion and coaxial being equipped with the guide bar, open along the axial guide bar side has the guide slot, the free end loop of guide bar has the test frame of surface mounting high-speed impact test board, the jar internal portion that is relative with the guide bar is fixed with the screw guide bar, screw guide bar tip stretches into in the test frame and with test frame threaded connection, set firmly in the test frame that is relative with the guide slot with guide slot sliding complex stop position piece, the high-speed impact test board is relative with the valve of valve, be equipped with the observation window on the jar body.
As a further improvement of the technical scheme of the invention, the inner edges of the tank bodies positioned on the inner sides of all the positioning rods are provided with O-shaped rings which are in sealing fit with the lower surface of the tank cover.
As a further improvement of the technical scheme of the invention, the center lines of the thread guide rod and the guide rod are positioned on the same straight line, and the valve center line of the electric valve is perpendicular to the straight line and positioned in the same plane.
As a further improvement of the technical scheme of the invention, the tank cover moving mechanism further comprises a shell, wherein an output shaft of the motor, a main bevel gear and a secondary bevel gear are all positioned in the shell, and the bottom of the shell is fixed on the positioning plate.
As a further improvement of the technical scheme of the invention, the tank body is provided with a safety valve.
As a further improvement of the technical scheme of the invention, the tank body is provided with a stirring motor, an output shaft of the stirring motor extends into the tank body, and the end part of the output shaft is provided with stirring blades.
As a further improvement of the technical scheme of the invention, the upper edges of the tank bodies positioned at the outer sides of all the positioning rods are provided with at least one lower displacement sensor for detecting the tank cover, the outer edges of the tank covers positioned at the outer sides of all the positioning rods are provided with at least one upper displacement sensor for detecting the positioning plate, the signal output ends of the lower displacement sensor and the upper displacement sensor are connected to the control unit, the control unit sends a driving signal to the driver, and the driver receives the driving signal and then starts or closes the driving motor.
As a further improvement of the technical scheme of the invention, the upper edge of the tank body extends outwards to form an annular outer edge, a plurality of connecting holes are correspondingly formed in the annular outer edge and the outer edge of the tank cover, and the annular outer edge and the outer edge of the tank cover are fixedly connected together through a bolt and nut assembly penetrating through the connecting holes.
The explosion-proof test tank is a special explosion-proof tank designed for a high-speed impact friction spark test, the opening and closing of the explosion-proof tank are controlled by a motor, the problems that the existing tank cover is inconvenient to open and close and takes a long time are solved, the monitoring of the gas concentration in the tank body before and after the test, the displacement and the inclination angle adjustment of a high-speed impact test board are realized, the timing adjustment of the tank cover is not needed, the efficiency is high, the cost is low, the impact friction of a test pellet on the high-speed impact test board can be observed, and whether the generated spark can ignite explosive gas or not is observed.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of an explosion-proof test tank according to the present invention.
Fig. 2 is a schematic structural diagram of a test frame.
In the figure: 1-tank body, 2-tank cover, 3-locating rod, 4-locating plate, 5-threaded rod, 6-motor, 7-electric valve, 8-absolute value encoder, 9-servo motor, 10-threaded guide rod, 11-test frame, 12-guide rod, 13-observation window, 14-shell, 15-relief valve, 16-motor for stirring, 17-lower displacement sensor, 18-upper displacement sensor, 19-high-speed impact test plate, 20-guide slot, 21-stop block.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
The technical scheme of the invention is described in detail below with reference to the accompanying drawings.
The explosion-proof test tank comprises a tank body 1 and a tank cover 2, wherein the upper edge of the tank wall of the tank body 1 is provided with at least three positioning rods 3 parallel to the central line of the tank body 1, each positioning rod 3 penetrates through the tank cover 2 and is in clearance fit with the tank cover 2, the end parts of all the positioning rods 3 above the tank cover 2 are fixed on a positioning plate 4, the center of the positioning plate 4 penetrates through a threaded rod 5 along the central line of the tank body 1, the bottom of the threaded rod 5 extends out of the positioning plate 4 and is fixedly connected with the center of the tank cover 2, the upper surface of the positioning plate 4 is provided with a tank cover moving mechanism, the tank cover moving mechanism comprises a motor 6, a main bevel gear coaxially arranged on an output shaft of the motor 6 and a secondary bevel gear meshed with the main bevel gear, and the inner circle of the secondary bevel gear is in threaded fit with the threaded rod 5;
the automatic test device is characterized in that an electric valve 7 is arranged on the surface of the tank body 1, a valve of the electric valve 7 allows test pellets to penetrate into the tank body 1, a servo motor 9 with an absolute encoder 8 is arranged on the surface of the tank body 1, a speed reducer is coaxially arranged on an output shaft of the servo motor 9, an output end of the speed reducer stretches into the tank body 1 and is coaxially provided with a guide rod 12, a guide groove 20 is axially formed in the side surface of the guide rod 12, a test frame 11 with a high-speed impact test plate 19 is sleeved at the free end of the guide rod 12, a threaded guide rod 10 is fixed in the tank body 1 opposite to the guide rod 12, the end of the threaded guide rod 10 stretches into the test frame 11 and is in threaded connection with the test frame 11, a stop block 21 in sliding fit with the guide groove 20 is fixedly arranged in the test frame 11 opposite to the guide groove 20, the high-speed impact test plate 19 is opposite to the valve of the electric valve 7, and an observation window 13 is arranged on the tank body 1.
When the test frame is used, the high-speed impact test plate 19 is arranged on one side or two sides of the test frame 11, the motor 6 rotates positively and drives the main bevel gear to rotate, the driven bevel gear is further driven to rotate, the threaded rod 5 moves downwards, the tank cover 2 is pushed to move downwards along the positioning rod 3, and the motor 6 is closed after the tank cover is buckled with the tank body 1 in a sealing mode. The servo motor 9 is controlled by the absolute value encoder 8 to drive the guide rod 12 to rotate, and the rotating guide rod 12 drives the test frame 11 to rotate due to the limiting effect between the stop block 21 and the guide groove 20, so that the purpose of controlling the inclination angle of the test frame 11 is realized; in addition, due to the screw connection relationship between the screw guide bar 10 and the test frame 11, the rotating test frame 11 is further in rotational engagement with the screw guide bar 10, so that the rotating test frame 11 moves laterally along the screw guide bar 10. The electric actuator of the electric valve 7 controls the opening and closing of the valve of the electric valve 7. When the test pellets impact in the connecting gun barrel according to the instruction along the preset direction, the valve of the electric valve 7 is simultaneously opened, so that the test pellets can smoothly enter the tank body 1 to generate impact friction with the high-speed impact test plate 19, and the spark condition caused by the test pellets in the tank body 1 can be observed through the observation window 13.
After the impact of the test projectile in the tank body 1 is completed, the motor 6 is reversed and drives the main bevel gear to rotate, then drives the secondary bevel gear to rotate, the threaded rod 5 moves upwards, the tank cover 2 is driven to move upwards along the positioning rod 3, and the tank cover 2 can be opened. In specific application, the tank body 1 is provided with an air inlet and an air outlet respectively, so that whether the generated sparks can ignite explosive gas or not can be conveniently observed.
In the present invention, the observation window 13 is preferably located at the middle of the tank 1, so that the condition of the test pellets in the tank 1 can be more comprehensively observed. The observation window 13 shown in fig. 1 is opposite to the threaded guide bar 10 or the guide bar 12 on the test frame 11, and does not mean that the observation window 13 is located at this position in the present invention, and in fact, the observation window 13 should avoid the installation position of other components on the can 1 for the installation of the threaded guide bar 10 or the guide bar 12.
In order to strengthen the sealing between the tank cover 2 and the tank body 1, the inner edge of the tank body 1 positioned on the inner side of all the positioning rods 3 is provided with O-shaped rings which are in sealing fit with the lower surface of the tank cover 2.
In specific use, the center lines of the thread guide rod 10 and the guide rod 12 are positioned on the same straight line, and the valve center line of the electric valve 7 is perpendicular to the straight line and positioned in the same plane. The impact-facilitated test pellets thus impact-rub against the high-speed impact test plate 19.
As shown in fig. 1, the can lid moving mechanism further includes a housing 14, the output shaft of the motor 6, the master bevel gear and the slave bevel gear are all located in the housing 14, and the bottom of the housing 14 is fixed on the positioning plate 4.
In specific implementation, the tank body 1 is provided with a safety valve 15.
Preferably, the tank body 1 is provided with a stirring motor 16, an output shaft of the stirring motor 16 extends into the tank body 1, and a stirring fan blade is arranged at the end part of the output shaft. The stirring motor 16 drives the stirring fan blade to rotate, so that the mixed gas in the tank body 1 can be quickly mixed, and the preset gas ratio is achieved.
In specific implementation, in order to avoid the excessive closing of the can lid 2 and the can body 1, and also in order to avoid the excessive lifting of the can lid 2, the upper edge of the can body 1 positioned outside all the positioning rods 3 is provided with at least one lower displacement sensor 17 for detecting the can lid 2, the outer edge of the can lid 2 positioned outside all the positioning rods 3 is provided with at least one upper displacement sensor 18 for detecting the positioning plate 4, the signal output ends of the lower displacement sensor 17 and the upper displacement sensor 18 are connected to a control unit, the control unit sends a driving signal to a driver, and the driver receives the driving signal and then starts or closes the driving motor 6. After the tank cover 2 which moves downwards moves to a preset position, the lower displacement sensor 17 inputs a displacement signal to the control unit, the control unit sends a driving signal to the driver, and the driver stops rotating forwards after receiving the driving signal by the driving motor 6, so that the tank cover 2 and the tank body 1 can be prevented from being excessively closed to damage and deform the upper edge of the tank cover 2 or the tank body 1, and the damage to the O-shaped ring can be avoided. After the upward-running can lid 2 runs to a preset position, the upward-displacement sensor 18 inputs a displacement signal to the control unit, the control unit sends a driving signal to the driver, and the driver stops reversing the driving motor 6 after receiving the driving signal, so that the can lid 2 can be prevented from being raised too high to cause damage or deformation of the can lid 2 and the positioning plate 4.
Preferably, in order to avoid that the test projectile is impacted to generate spark to ignite the mixed gas in the tank body 1, the tank cover 2 is ejected by the impact gas generated by explosion, the upper edge of the tank body 1 outwards extends to form an annular outer edge, a plurality of connecting holes are correspondingly formed in the annular outer edge and the outer edge of the tank cover 2, and the annular outer edge is fixedly connected with the outer edge of the tank cover 2 through a bolt and nut component penetrating through the connecting holes.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides an explosion-proof test jar, includes jar body (1), cover (2), its characterized in that, jar wall upper edge of jar body (1) is equipped with at least three locating lever (3) with jar body (1) central line parallel, every locating lever (3) all run through jar cover (2) and with be clearance fit between jar cover (2), all locating lever (3) tip that are located jar cover (2) top are all fixed in locating plate (4), locating plate (4) center is run through along jar body (1) central line has threaded rod (5), and threaded rod (5) bottom stretches out behind locating plate (4) with jar cover (2) center fixed connection, locating plate (4) upper surface is equipped with cover mobile mechanism, cover mobile mechanism includes motor (6), coaxial mounting in main bevel gear on motor (6) output shaft, from the interior circle of bevel gear with the meshing of main bevel gear and threaded rod (5) screw thread fit;
the automatic test device is characterized in that an electric valve (7) is arranged on the surface of the tank body (1), a valve of the electric valve (7) allows test pellets to penetrate into the tank body (1), a servo motor (9) with an absolute encoder (8) is arranged on the surface of the tank body (1), a speed reducer is coaxially arranged on an output shaft of the servo motor (9), an output end of the speed reducer stretches into the tank body (1) and is coaxially provided with a guide rod (12), a guide groove (20) is axially formed in the side surface of the guide rod (12), a test frame (11) with a high-speed impact test plate (19) is sleeved at the free end of the guide rod (12), a threaded guide rod (10) is fixed in the tank body (1) opposite to the guide rod (12), the end of the threaded guide rod (10) stretches into the test frame (11) and is in threaded connection with the test frame (11), a stop block (21) which is in sliding fit with the guide groove (20) is fixedly arranged in the test frame (11) opposite to the guide groove (20), and the high-speed impact plate (19) is provided with the test window (13) opposite to the valve (7);
the inner edges of the tank bodies (1) positioned at the inner sides of all the positioning rods (3) are provided with O-shaped rings which are in sealing fit with the lower surface of the tank cover (2); the center lines of the thread guide rod (10) and the guide rod (12) are positioned on the same straight line, and the valve center line of the electric valve (7) is perpendicular to the straight line and positioned in the same plane.
2. An explosion-proof test tank according to claim 1, wherein the tank cover moving mechanism further comprises a housing (14), the output shaft, the main bevel gear and the auxiliary bevel gear of the motor (6) are all positioned in the housing (14), and the bottom of the housing (14) is fixed on the positioning plate (4).
3. An explosion-proof test tank according to claim 1, characterized in that the tank body (1) is provided with a safety valve (15).
4. The explosion-proof test tank according to claim 1, wherein the tank body (1) is provided with a stirring motor (16), an output shaft of the stirring motor (16) extends into the tank body (1), and the end part of the output shaft is provided with stirring blades.
5. An explosion-proof test tank according to claim 1, characterized in that the upper edges of the tank bodies (1) positioned outside all the positioning rods (3) are provided with at least one lower displacement sensor (17) for detecting the tank cover (2), the outer edges of the tank covers (2) positioned outside all the positioning rods (3) are provided with at least one upper displacement sensor (18) for detecting the positioning plate (4), the signal output ends of the lower displacement sensor (17) and the upper displacement sensor (18) are connected to a control unit, the control unit sends a driving signal to a driver, and the driver starts or closes the driving motor (6) after receiving the driving signal.
6. The explosion-proof test tank according to claim 1, wherein the upper edge of the tank body (1) extends outwards to form an annular outer edge, a plurality of connecting holes are correspondingly formed in the annular outer edge and the outer edge of the tank cover (2), and the annular outer edge is fixedly connected with the outer edge of the tank cover (2) through a bolt and nut assembly penetrating through the connecting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910259418.7A CN109781514B (en) | 2019-04-02 | 2019-04-02 | Explosion-proof test tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910259418.7A CN109781514B (en) | 2019-04-02 | 2019-04-02 | Explosion-proof test tank |
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| Publication Number | Publication Date |
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| CN109781514A CN109781514A (en) | 2019-05-21 |
| CN109781514B true CN109781514B (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910259418.7A Active CN109781514B (en) | 2019-04-02 | 2019-04-02 | Explosion-proof test tank |
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| CN (1) | CN109781514B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110274874B (en) * | 2019-07-01 | 2022-04-01 | 广州特种机电设备检测研究院 | Rotary friction spark test device for detecting explosion-proof performance of non-spark material |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202126340U (en) * | 2011-07-05 | 2012-01-25 | 华尔斯（汕头）电气有限公司 | Vacuum tank with viewing window |
| CN103091470A (en) * | 2012-12-09 | 2013-05-08 | 中国煤炭科工集团太原研究院 | Explosive-proof test tank |
| CN103175681A (en) * | 2013-03-06 | 2013-06-26 | 广州市特种机电设备检测研究院 | Testing apparatus for evaluating friction and anti-explosion properties of wheel rails of anti-explosion cranes |
| CN203737270U (en) * | 2014-03-25 | 2014-07-30 | 山西省计量科学研究院 | Horizontal explosion isolation test tank |
| CN203764275U (en) * | 2014-03-25 | 2014-08-13 | 山西省计量科学研究院 | Vertical type explosive-proof test tank |
| JP2016090365A (en) * | 2014-11-04 | 2016-05-23 | 東洋製罐株式会社 | Hammer impact test device and hammer impact test method |
| KR20160150475A (en) * | 2015-06-22 | 2016-12-30 | 한국산업안전보건공단 | Jig for Explosion Ignitability Test |
| CN106908725A (en) * | 2017-03-09 | 2017-06-30 | 三门峡化工机械有限公司 | Fire-proof motor tank electromechanical integrated device |
| CN206557350U (en) * | 2017-03-09 | 2017-10-13 | 三门峡化工机械有限公司 | Fire-proof motor tank electromechanical integrated device |
| CN209673522U (en) * | 2019-04-02 | 2019-11-22 | 山西省计量科学研究院 | A kind of explosion-proof test tank |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7733085B2 (en) * | 2008-02-11 | 2010-06-08 | Electromechanical Technologies, Inc. | Flangeless canister for in-line inspection tool |
-
2019
- 2019-04-02 CN CN201910259418.7A patent/CN109781514B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202126340U (en) * | 2011-07-05 | 2012-01-25 | 华尔斯（汕头）电气有限公司 | Vacuum tank with viewing window |
| CN103091470A (en) * | 2012-12-09 | 2013-05-08 | 中国煤炭科工集团太原研究院 | Explosive-proof test tank |
| CN103175681A (en) * | 2013-03-06 | 2013-06-26 | 广州市特种机电设备检测研究院 | Testing apparatus for evaluating friction and anti-explosion properties of wheel rails of anti-explosion cranes |
| CN203737270U (en) * | 2014-03-25 | 2014-07-30 | 山西省计量科学研究院 | Horizontal explosion isolation test tank |
| CN203764275U (en) * | 2014-03-25 | 2014-08-13 | 山西省计量科学研究院 | Vertical type explosive-proof test tank |
| JP2016090365A (en) * | 2014-11-04 | 2016-05-23 | 東洋製罐株式会社 | Hammer impact test device and hammer impact test method |
| KR20160150475A (en) * | 2015-06-22 | 2016-12-30 | 한국산업안전보건공단 | Jig for Explosion Ignitability Test |
| CN106908725A (en) * | 2017-03-09 | 2017-06-30 | 三门峡化工机械有限公司 | Fire-proof motor tank electromechanical integrated device |
| CN206557350U (en) * | 2017-03-09 | 2017-10-13 | 三门峡化工机械有限公司 | Fire-proof motor tank electromechanical integrated device |
| CN209673522U (en) * | 2019-04-02 | 2019-11-22 | 山西省计量科学研究院 | A kind of explosion-proof test tank |
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| CN109781514A (en) | 2019-05-21 |
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