CN114236299A - Infrared temperature measurement high-speed photographic imaging integrated thunder and lightning ignition source simulation device - Google Patents
Infrared temperature measurement high-speed photographic imaging integrated thunder and lightning ignition source simulation device Download PDFInfo
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- CN114236299A CN114236299A CN202210170767.3A CN202210170767A CN114236299A CN 114236299 A CN114236299 A CN 114236299A CN 202210170767 A CN202210170767 A CN 202210170767A CN 114236299 A CN114236299 A CN 114236299A
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- sliding
- test piece
- lead
- base
- simulation device
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- 238000004088 simulation Methods 0.000 title claims abstract description 17
- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 16
- 238000003384 imaging method Methods 0.000 title claims abstract description 15
- 239000000523 sample Substances 0.000 claims abstract description 6
- 238000000605 extraction Methods 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 25
- 230000003028 elevating Effects 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 12
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 8
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 125000004435 hydrogen atoms Chemical class [H]* 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 4
- 230000000875 corresponding Effects 0.000 claims description 3
- 239000002828 fuel tank Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 210000001847 Jaw Anatomy 0.000 description 1
- 206010042255 Struck by lightning Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing Effects 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/008—Testing of electric installations on transport means on air- or spacecraft, railway rolling stock or sea-going vessels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
Abstract
The invention relates to the technical field of airplane lightning protection tests and discloses an infrared temperature measurement high-speed photography imaging comprehensive lightning ignition source simulation device which comprises a base used for mounting a test piece, wherein the test piece is connected with an inflation tube and an exhaust tube, and the inflation tube fills mixed gas into a cavity of the test piece; the air extraction pipe is used for extracting air existing in the test piece in an initial state; the test piece is also provided with two observation windows, and the outer sides of the observation windows are provided with a thermal infrared imager and a high-speed camera for acquiring data; the test piece is also provided with a oscillography port which is used for inserting an oscilloscope probe; the base is provided with a lead loop arrangement mechanism for arranging leads; according to the invention, the thermal infrared imager and the high-speed camera are arranged to simultaneously acquire the infrared image and the high-definition image, so that the subsequent image comprehensive processing is facilitated; according to the invention, the uniformly distributed wire loops are arranged through the automatic wire loop arrangement mechanism, so that the adverse effect of nonuniform magnetic field of the wire loops on the test result is avoided.
Description
Technical Field
The invention relates to the field of airplane lightning protection tests, in particular to an infrared temperature measurement high-speed photographic imaging comprehensive lightning ignition source simulation device.
Background
Thunder is a natural discharge phenomenon of high voltage and large current, and a civil aircraft can be struck by lightning after flying for 3000 hours on average. The fuel oil system is an important component system of the airplane, the flight safety is directly influenced if the fuel oil system can work reliably, and the fuel oil tank is an object needing important protection research under the lightning environment. When an aircraft is struck by a lightning, the fuel tank will become part of the lightning path and lightning current will be conducted over the fuel tank structure and the internal piping. Combustible fuel steam is filled in the fuel tank, and when the lightning protection redundancy design of the fuel tank components cannot meet the requirements, ignition sources such as electric arcs and electric sparks can be generated, so that the fuel tank is exploded to cause extremely serious flight accidents.
Lightning ignition source detection of an aircraft fuel tank is a means and method for verifying whether the lightning protection design of the aircraft fuel system meets standard requirements. The combustible gas explosion device is an important component device for detecting the lightning ignition source. However, the conventional lightning ignition source detection device has many disadvantages:
1. in the test, the test phenomenon is usually recorded only by shooting with a high-speed camera or by infrared temperature measurement.
2. Before the ignition-source test begins, a mixture of hydrogen, oxygen and argon is flushed into the test piece to vent the test piece of other gases. However, the actual situation is not so good, and due to the difference of the test piece structure, air in the test piece can not be completely discharged, so that the test data is not accurate enough.
Disclosure of Invention
The invention provides an infrared temperature measurement high-speed photographic imaging integrated lightning ignition source simulation device, which solves the technical problems of the traditional lightning ignition source detection device in the related technology.
According to one aspect of the invention, the invention provides an infrared temperature measurement high-speed photography imaging comprehensive lightning ignition source simulation device which comprises a base used for installing a test piece, wherein the test piece is connected with an inflation pipe and an exhaust pipe, and the inflation pipe is used for inflating mixed fuel gas into a cavity of the test piece; the mixed gas is a mixed gas of hydrogen, oxygen and argon;
the air extraction pipe is used for extracting air existing in the test piece in an initial state;
the test piece is also provided with two observation windows, and the outer sides of the observation windows are provided with a thermal infrared imager and a high-speed camera for acquiring data;
the test piece is also provided with a oscillography port which is used for inserting an oscilloscope probe; the two observation windows are respectively positioned at two sides of the test piece, and the oscillometric port is arranged at the top of the test piece;
the base is provided with a lead loop arrangement mechanism for arranging leads, the lead loop arrangement mechanism comprises an installation disc, a main shaft is arranged in the center of the installation disc, the installation disc is rotatably connected with the main shaft, the main shaft is rotatably connected with the base, and the periphery of the installation disc is provided with a plurality of lead fixing ends which are uniformly distributed in an annular array; the lead fixing end comprises a first hook, and an opening of the first hook faces to one side far away from the test piece;
a turntable is arranged on one side of the mounting disc close to the test piece, the turntable is fixedly connected with the main shaft, and the main shaft or the turntable is connected with a first rotary power source; the test piece is connected with the turntable through the tray;
the turntable is detachably connected with a moving unit, the moving unit comprises two track seats arranged in parallel, sliding tables are arranged at the tops of the two track seats, the bottoms of the sliding tables are connected with the track seats in a sliding mode, a third linear driving mechanism used for driving the sliding tables to move along the axis direction of the main shaft is arranged on the track seats, the third linear driving mechanism comprises a belt, the belt is connected with the sliding tables, the belt is connected with more than two belt wheels, the belt wheels are connected with the track seats through belt wheel shafts, one of the belt wheel shafts is connected with the output end of a second rotary power source, a swing rod is arranged on the sliding tables and is rotatably connected with the sliding tables through a swing rod shaft, a second gear and a third gear are respectively arranged at the front end and the rear end of the swing rod shaft, a first rack and a second rack are respectively arranged at the two ends of the track seats, and the first rack and the second rack are respectively positioned at the front side and the rear side of the track seats; one end of the swing rod, which is far away from the swing rod shaft, is provided with a threading hole for passing through a lead, and one surface of the track seat, which is far away from the sliding table, is provided with a lead connector for connecting the lead;
a clamping block is arranged on one surface of the track seat far away from the sliding table; a clamping groove matched with the clamping block is formed in the periphery of the rotary table, a sliding cavity is formed in one side of the clamping groove, a pressing block is arranged inside the sliding cavity, a cam is arranged on one side of the pressing block, the cam is fixedly arranged on a cam shaft, a fourth gear is arranged on the cam shaft, and the fourth gear is connected with the cam shaft through a one-way clutch;
be equipped with two second slides on the base between the carousel, the sliding rail connection base that the second slide set up on through the fore-and-aft direction, be equipped with on the base and be used for driving the fourth linear driving mechanism that the second slide moved up along the fore-and-aft direction, the top of second slide is equipped with the elevating platform, be equipped with the lifting connector that detachable connects the track seat on the elevating platform, the bottom of elevating platform is equipped with the third rack, be equipped with on the third rack with fourth gear complex tooth, be equipped with on the second slide and be used for driving the fifth linear driving mechanism that the elevating platform reciprocated.
Furthermore, a lead wire disc for guiding the lead wire is arranged on the main shaft, and a lead wire hole is formed in the lead wire disc and corresponds to the clamping groove of the rotary table in position.
Furthermore, a first gear ring is arranged on the rotary table, the output end of the first rotary power source is connected with a first gear, and the first gear ring is matched with the first gear. The bottom of the first rotary power source is connected with a first sliding seat, the first sliding seat is connected with a base through a sliding rail arranged in the front-back direction, and a first linear driving mechanism used for driving the first sliding seat to move in the front-back direction is arranged on the base.
Furthermore, a lead fixing end on the mounting disc is connected with a sliding block, the sliding block is connected with the mounting disc through a sliding rail arranged along the radial direction of the mounting disc, and the sliding block is connected with a sixth linear driving mechanism used for driving the sliding block to move along the radial direction of the mounting disc. The sixth linear driving mechanism comprises a sliding sleeve sleeved on the main shaft, the sliding sleeve is connected with the sliding block through a connecting rod, two ends of the connecting rod are respectively hinged with the sliding block and the sliding sleeve, and the sliding sleeve is connected with a seventh linear driving mechanism used for driving the seventh linear driving mechanism to move along the axial direction of the main shaft.
The invention has the beneficial effects that:
according to the invention, the thermal infrared imager and the high-speed camera are arranged to simultaneously acquire the infrared image and the high-definition image, so that the subsequent image comprehensive processing is facilitated;
the invention discharges redundant air through the gas charging pipe and the gas discharging pipe, so that the test gas is uniformly filled in the whole test cavity, the efficiency of the gas charging process is improved, and the accuracy of the test gas is ensured;
according to the invention, the uniformly distributed wire loops are arranged through the automatic wire loop arrangement mechanism, so that the adverse effect of nonuniform magnetic field of the wire loops on the test result is avoided.
The invention adopts automatic wiring operation, and can improve the safety of operators.
Drawings
FIG. 1 is a schematic structural view of a test piece of the present invention;
FIG. 2 is a schematic structural view of the wire loop routing mechanism of the present invention;
fig. 3 is a schematic view of the slide table of the wire loop arranging mechanism of the present invention moved to a position near the left end;
FIG. 4 is a bottom view of the mobile unit of the present invention;
FIG. 5 is a side view of the mobile unit of the present invention;
FIG. 6 is a cross-sectional view of a mobile unit of the present invention;
FIG. 7 is a partial cross-sectional view of the turntable of the present invention;
FIG. 8 is a schematic view of the fixture block of the track seat being inserted into the fixture slot of the turntable according to the present invention;
fig. 9 is a schematic structural view of the mounting plate of the present invention.
In the figure: the device comprises a base 100, a mounting disc 101, a lead fixing end 102, a turntable 103, a spindle 104, a first rotary power source 105, a rail seat 106, a sliding table 107, a swing rod 108, a second gear 109, a first rack 110, a lead connector 111, a fixture block 112, a clamping groove 113, a sliding cavity 114, a pressing block 115, a cam 116, a fourth gear 117, a second sliding seat 118, a fourth linear driving mechanism 119, a lifting table 120, a third rack 121, a first gear ring 122, a first sliding seat 123, a belt 124, a belt wheel 125, a second rotary power source 126, a sliding block 127, a sliding sleeve 128, a connecting rod 129, a test piece 200, an air inflation tube 201, an air suction tube 202, an observation window 203, an infrared thermal imager 204, a high-speed camera 205 and a wave indicating port 206.
Detailed Description
The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thereby implement the subject matter described herein, and are not intended to limit the scope, applicability, or examples set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as needed. In addition, features described with respect to some examples may also be combined in other examples.
Example one
As shown in fig. 1-8, the lightning ignition source simulation device for infrared temperature measurement high-speed photography imaging synthesis comprises a base 100 for mounting a test piece 200, wherein the test piece 200 is connected with an inflation tube 201 and an exhaust tube 202, wherein the inflation tube 201 fills mixed gas into a cavity of the test piece 200;
the air suction pipe 202 is used for sucking air existing in the test piece 200 in an initial state;
the test piece 200 is also provided with two observation windows 203, and the outer sides of the observation windows 203 are provided with a thermal infrared imager 204 and a high-speed camera 205 for acquiring data;
the test piece 200 is also provided with a oscillography port 206, and the oscillography port 206 is used for inserting an oscilloscope probe;
the base 100 is provided with a lead loop arrangement mechanism for arranging leads, the lead loop arrangement mechanism comprises a mounting disc 101, the center of the mounting disc 101 is provided with a main shaft 104, the mounting disc 101 is rotatably connected with the main shaft 104, the main shaft 104 is rotatably connected with the base 100, and the periphery of the mounting disc 101 is provided with a plurality of lead fixing ends 102 which are uniformly distributed in an annular array;
a turntable 103 is arranged on one side of the mounting disc 101 close to the test piece 200, the turntable 103 is fixedly connected with a main shaft 104, and the main shaft 104 or the turntable 103 is connected with a first rotary power source 105; the test piece 200 is connected with the turntable 103 through a tray;
the turntable 103 is detachably connected with a moving unit, the moving unit comprises two parallel rail bases 106, sliding tables 107 are arranged at the tops of the two rail bases 106, the bottoms of the sliding tables 107 are slidably connected with the rail bases 106, a third linear driving mechanism for driving the sliding tables 107 to move along the axis direction of the main shaft 104 is arranged on the rail bases 106, swing rods 108 are arranged on the sliding tables 107, the swing rods 108 are rotatably connected with the sliding tables 107 through swing rod shafts, second gears 109 and third gears are respectively arranged at the front end and the rear end of the swing rod shafts, first racks 110 and second racks are respectively arranged at the two ends of the rail bases 106, and the first racks 110 and the second racks are respectively located at the front side and the rear side of the rail bases 106; one end of the swing rod 108, which is far away from the swing rod shaft, is provided with a threading hole for passing through a lead, and one surface of the track seat 106, which is far away from the sliding table 107, is provided with a lead connector 111 for connecting the lead;
a clamping block 112 is arranged on one surface of the rail seat 106 far away from the sliding table 107; a clamping groove 113 matched with the clamping block 112 is formed in the periphery of the rotary disc 103, a sliding cavity 114 is formed in one side of the clamping groove 113, a pressing block 115 is arranged inside the sliding cavity 114, a cam 116 is arranged on one side of the pressing block 115, the cam 116 is fixedly arranged on a cam shaft, a fourth gear 117 is arranged on the cam shaft, and the fourth gear 117 is connected with the cam shaft through a one-way clutch;
be equipped with two second slide 118 on the base 100 between the carousel 103, second slide 118 is through the sliding rail connection base 100 that sets up in the front-back direction, be equipped with on the base 100 and be used for driving second slide 118 along the fourth linear drive mechanism 119 of fore-and-aft direction upward movement, the top of second slide 118 is equipped with elevating platform 120, be equipped with the detachable lifting connector who connects track seat 106 on the elevating platform 120, the bottom of elevating platform 120 is equipped with third rack 121, be equipped with on the third rack 121 with fourth gear 117 complex tooth, be equipped with on the second slide 118 and be used for driving the fifth linear drive mechanism that elevating platform 120 reciprocated.
The two observation windows 203 are respectively positioned at two sides of the test piece 200, and the oscillography port 206 is arranged at the top of the test piece 200, so that the arrangement can be used for observing the blasting phenomenon from different angles;
the arrangement that the gas filling pipe 201 is arranged above the closed cavity and the gas exhaust pipe is arranged below the closed cavity can completely exhaust the air in the test cavity and inject the mixed gas meeting the test requirements;
when the test is started, arranging a thermal infrared imager 204 and a high-speed camera 205 on an observation window 203, adjusting the angle to be suitable, and connecting the instrument to an upper computer to receive and check test data;
mixed gas in a proportion required by an experiment is injected into the test piece 200 through the gas filling pipe 201;
the air in the cavity of the test piece 200 is discharged to the outside through the exhaust pipe during air inflation, the air in the test cavity can be completely discharged through the relative arrangement of the air inflation pipe 201 and the exhaust pipe, negative pressure is formed on the inner side of the exhaust port, the air exchange efficiency of combustible gas and the accuracy of mixed gas are greatly improved, the effect of a mixed gas ignition source detection test is improved, and the amount of the mixed gas rushing into the test piece is generally not less than 5 times of the volume of the test piece 200;
the wire loop is arranged through the wire loop arrangement mechanism, the output end of the wire is connected with the test piece 200, and the grounding end of the test piece 200 is grounded.
The wire loop arranging mechanism arranges the wire loop as follows: initially, the second sliding seat 118 is positioned at one side far away from the turntable 103, and a wire passes through the threading hole of the swing rod 108 and then is connected with the wire connector 111; the position where the wire connector 111 connects the wire and the position of the threading hole are provided with a gap in the front-rear direction.
The fourth linear driving mechanism 119 drives the second sliding seat 118 to move above the turntable 103, the fifth linear driving mechanism drives the lifting platform 120 to descend, the clamping block 112 of the rail seat 106 is pushed to be embedded into the clamping groove 113 of the turntable 103, the third rack 121 which descends synchronously contacts with the fourth gear 117, the fourth gear 117 is driven to rotate 180 degrees, the protruding end of the cam 116 contacts with the pressing block 115, the pressing block 115 contacts and presses the rail seat 106, and the rail seat 106 is fixed on the turntable 103; at the moment, the moving unit is positioned between the two lead fixing ends 102, and the turntable 103 is rotated to enable the moving unit to rotate to the position corresponding to the lead fixing end 102;
then the third linear driving mechanism drives the sliding table 107 to move leftwards, the second gear 109 contacts the first rack 110, the second gear 109 rotates to drive the swing rod 108 to swing anticlockwise, the outer end of the swing rod 108 swings to the left side of the lead fixing end 102 of the mounting disc 101 on the left side, because a gap is arranged between the position of the lead connector 111, which is connected with a lead, and the position of a threading hole in the front-back direction, the lead can bypass the lead fixing end 102 at the moment, then the third linear driving mechanism drives the sliding table 107 to move rightwards, the third gear contacts the second rack to rotate the third gear, the swing rod 108 is driven to swing clockwise, the outer end of the swing rod 108 swings to the right side of the lead fixing end 102 of the mounting disc 101 on the left side, the lead bypasses the lead fixing end 102, then the third linear driving mechanism drives the sliding table 107 to move leftwards for a certain distance, the swing rod 108 restores an angle, and avoids interference with the lead 102 when the rotary disc 103 rotates, then the first rotary power source 105 drives the turntable 103 to rotate for an angle, the angle of the first rotary power source 105 driving the turntable 103 to rotate is 360 degrees/N, and N is the number of the lead fixing ends 102;
then the third linear driving mechanism drives the sliding table 107 to move to the right end of the rail seat 106, the lead bypasses the next lead fixing end 102, then the third linear driving mechanism drives the sliding table 107 to move to the left end of the rail seat 106, the lead bypasses one lead fixing end 102, the third linear driving mechanism drives the sliding table 107 to move rightwards for a certain distance, then the first rotary power source 105 drives the rotary table 103 to rotate for an angle of 360 degrees/N, and the process is repeated to complete the arrangement of the loop of the lead around the test piece 200 for one circle;
finally, the turntable 103 is rotated to enable the moving unit to be located at a position between the two lead fixing ends 102, the lead connector 111 releases fixing of the leads, the fifth linear driving mechanism drives the lifting table 120 to descend, the fixture block 112 of the track seat 106 is pushed to be embedded into the clamping groove 113 of the turntable 103, the third rack 121 which descends synchronously is in contact with the fourth gear 117, the fourth gear 117 is driven to rotate 180 degrees again, the protruding end of the cam 116 is far away from the pressing block 115, the pressing block 115 cannot press the track seat 106, the track seat 106 is connected by the lifting connector and separated from the turntable 103, and then the fourth linear driving mechanism 119 drives the second sliding seat 118 to move, so that the track seat 106 is far away from the turntable 103; when the lifting platform 120 is lifted, the third rack 121 cannot drive the fourth gear 117 to rotate reversely due to the action of the one-way clutch;
the end part of the lead is pulled out of the swing rod 108 and falls to the lower test piece 200 to be contacted with the swing rod;
the pressing piece 115 may be replaced by a spring pin, and a pin hole is correspondingly formed on the latch 112.
An oscilloscope probe is placed at a position, which is required to measure induced current and structural voltage, in the test piece 200, a coaxial line connected with the oscilloscope probe can be led out through a wave indicating port 206 and is connected with an oscilloscope to read test data;
when the mixed gas is ignited to explode, a large amount of heat is generated to enable the gas in the closed cavity of the test piece 200 to expand rapidly, and outward expansion force is generated on the test piece 200. In order to avoid damaging the test piece 200, the exhaust pipe can be opened after the test is finished, and the air pressure in the closed cavity is balanced to be consistent with the external atmospheric pressure.
And after the single experiment is finished, the experimental data is sorted, recorded and analyzed. Because the thermal infrared imager 204 has a low sampling frequency, multiple experiments are required to approximate the true reaction temperature.
The lead loop arranged by the lead loop arrangement mechanism is in a state of surrounding the test piece 200, so that the magnetic field generated by electrifying the lead can be uniformly distributed, and the adverse effect on the test result is avoided;
in one embodiment of the invention, the mixed gas is a mixture of hydrogen, oxygen and argon.
In one embodiment of the present invention, the wire fixing end 102 includes a first hook having an opening facing a side away from the test piece 200. The part of the first hook extending to the side far away from the test piece 200 can limit the swing rod 108 from being separated from the first hook when the swing rod is driven to move in a guiding way.
Of course, other mechanisms for securing the wires while they are being passed around may be used in the above-described embodiments of the invention.
In one embodiment of the present invention, the lifting connector is a connection device such as a suction cup or an electromagnet that can be separated from the rail base 106.
In one embodiment of the present invention, the spindle 104 is provided with a lead pad for guiding a lead, and the lead pad is provided with a lead hole corresponding to the position of the slot 113 of the turntable 103. The lead holes of the lead pads follow the track base 106 to rotate synchronously, so that the lead introducing paths follow the track base 106.
In one embodiment of the present invention, the turntable 103 is provided with a first gear ring 122, the output end of the first rotary power source 105 is connected to a first gear, and the first gear ring 122 is matched with the first gear;
further, the bottom of the first rotary power source 105 is connected to a first slide carriage 123, the first slide carriage 123 is connected to the base 100 through a slide rail arranged in the front-back direction, and the base 100 is provided with a first linear driving mechanism for driving the first slide carriage 123 to move in the front-back direction. Can drive first rotary power source 105 through first straight line actuating mechanism and keep away from or be close to carousel 103 to can make first rotary power source 105 keep away from testpieces 200 when experimental, avoid first rotary power source 105 self to experimental influence, moreover can first power source self receive high-pressure test's influence and damage.
In an embodiment of the present invention, the spindle 104 is connected to an output end of the first rotary power source 105 through a key, the output end of the first rotary power source 105 can move along an axial direction of the spindle 104 to separate from the spindle 104, a bottom of the first rotary power source 105 is connected to the second slide 118, the second slide 118 is connected to the base 100 through a slide rail arranged in a horizontal direction, and the second linear driving mechanism is used for driving the first slide 123 to move in a left-right direction. The first rotary power source 105 is driven away from or toward the turntable 103 in another manner.
In an embodiment of the present invention, a torsion spring is disposed on the rocker shaft, and the torsion spring can drive the rocker 108 to swing to a vertically upward position when the first rack 110 is disengaged from the second gear 109 or the second rack is disengaged from the third gear.
In one embodiment of the present invention, the third linear driving mechanism includes a belt 124, the belt 124 is connected to the sliding table 107, the belt 124 is connected to two or more pulleys 125, the pulleys 125 are connected to the rail base 106 through the pulleys 125, and one of the pulleys 125 is connected to the output end of the second rotary power source 126. Since the slide table 107 needs to be moved to both ends of the rail base 106, it is easier to arrange to use the belt 124 as the third linear driving mechanism.
The third linear driving mechanism can also directly adopt a linear motor.
In one embodiment of the present invention, the wire connector 111 is a clamping jaw or a suction cup or the like.
In one embodiment of the present invention, the fourth linear drive mechanism 119 is a pneumatic or hydraulic cylinder.
In one embodiment of the invention, the fifth linear drive mechanism is a pneumatic or hydraulic cylinder.
As shown in fig. 9, in an embodiment of the present invention, the lead fixing end 102 on the mounting disk 101 is connected to a slider 127, the slider 127 is connected to the mounting disk 101 through a slide rail arranged along the radial direction of the mounting disk 101, and the slider 127 is connected to a sixth linear driving mechanism for driving the slider to move along the radial direction of the mounting disk 101;
in one embodiment of the invention, the sixth linear drive mechanism may be a pneumatic cylinder or a linear motor or a hydraulic cylinder.
The lead fixing end 102 is driven by the sixth linear driving mechanism to move along the radial direction of the mounting disc 101, so that the distance between the lead fixing end 102 and the center of the mounting disc 101 is adjusted, the distance between a lead and the test piece 200 is further adjusted, and the test piece is suitable for different test pieces 200.
In an embodiment of the present invention, the sixth linear driving mechanism includes a sliding sleeve 128 sleeved on the main shaft 104, the sliding sleeve 128 is connected to the sliding block 127 through a connecting rod 129, two ends of the connecting rod 129 are respectively hinged to the sliding block 127 and the sliding sleeve 128, and the sliding sleeve 128 is connected to a seventh linear driving mechanism for driving the seventh linear driving mechanism to move along the axial direction of the main shaft 104.
The sliding sleeve 128 is driven by the seventh linear driving mechanism to slide along the main shaft 104, and further the plurality of wire fixing ends 102 are driven to synchronously move by the connecting rod 129.
The seventh linear drive mechanism may be a pneumatic cylinder or a linear motor or a hydraulic cylinder.
The embodiments of the present invention have been described with reference to the drawings, but the present invention is not limited to the above-mentioned specific embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention and the protection scope of the claims.
Claims (10)
1. The lightning ignition source simulation device is characterized by comprising a base for mounting a test piece, wherein the test piece is connected with an inflation tube and an exhaust tube, wherein the inflation tube fills mixed gas into a cavity of the test piece;
the air extraction pipe is used for extracting air existing in the test piece in an initial state;
the test piece is also provided with two observation windows, and the outer sides of the observation windows are provided with a thermal infrared imager and a high-speed camera for acquiring data;
the test piece is also provided with a oscillography port which is used for inserting an oscilloscope probe;
the base is provided with a lead loop arrangement mechanism for arranging leads, the lead loop arrangement mechanism comprises an installation disc, a main shaft is arranged in the center of the installation disc, the installation disc is rotatably connected with the main shaft, the main shaft is rotatably connected with the base, and the periphery of the installation disc is provided with a plurality of lead fixing ends which are uniformly distributed in an annular array;
a turntable is arranged on one side of the mounting disc close to the test piece, the turntable is fixedly connected with the main shaft, and the main shaft or the turntable is connected with a first rotary power source; the test piece is connected with the turntable through the tray;
the turntable is detachably connected with a moving unit, the moving unit comprises two track seats arranged in parallel, sliding tables are arranged at the tops of the two track seats, the bottoms of the sliding tables are connected with the track seats in a sliding mode, a third linear driving mechanism used for driving the sliding tables to move along the axis direction of the main shaft is arranged on the track seats, swing rods are arranged on the sliding tables, the swing rods are rotatably connected with the sliding tables through swing rod shafts, a second gear and a third gear are arranged at the front end and the rear end of each swing rod shaft respectively, a first rack and a second rack are arranged at the two ends of each track seat respectively, and the first rack and the second rack are located at the front side and the rear side of each track seat respectively; one end of the swing rod, which is far away from the swing rod shaft, is provided with a threading hole for passing through a lead, and one surface of the track seat, which is far away from the sliding table, is provided with a lead connector for connecting the lead;
a clamping block is arranged on one surface of the track seat far away from the sliding table; a clamping groove matched with the clamping block is formed in the periphery of the rotary table, a sliding cavity is formed in one side of the clamping groove, a pressing block is arranged inside the sliding cavity, a cam is arranged on one side of the pressing block, the cam is fixedly arranged on a cam shaft, a fourth gear is arranged on the cam shaft, and the fourth gear is connected with the cam shaft through a one-way clutch;
be equipped with two second slides on the base between the carousel, the sliding rail connection base that the second slide set up on through the fore-and-aft direction, be equipped with on the base and be used for driving the fourth linear driving mechanism that the second slide moved up along the fore-and-aft direction, the top of second slide is equipped with the elevating platform, be equipped with the lifting connector that detachable connects the track seat on the elevating platform, the bottom of elevating platform is equipped with the third rack, be equipped with on the third rack with fourth gear complex tooth, be equipped with on the second slide and be used for driving the fifth linear driving mechanism that the elevating platform reciprocated.
2. The infrared thermometric high-speed photogrammetry comprehensive lightning ignition source simulation device according to claim 1, characterized in that the mixed gas is a mixed gas of hydrogen, oxygen and argon.
3. The infrared temperature measurement high-speed photography imaging integrated lightning ignition source simulation device as claimed in claim 1, wherein the lead fixing end comprises a first hook, and an opening of the first hook faces a side away from the test piece.
4. The infrared temperature measurement high-speed photography imaging integrated lightning ignition source simulation device according to claim 1, wherein a lead plate for guiding a lead is provided on the main shaft, and a lead hole is provided on the lead plate, the lead hole corresponding to the position of the clamping groove of the turntable.
5. The infrared temperature measurement high-speed photography imaging integrated lightning ignition source simulation device as claimed in claim 1, wherein a first gear ring is arranged on the turntable, an output end of the first rotary power source is connected with a first gear, and the first gear ring is matched with the first gear.
6. The infrared temperature measurement high-speed photography imaging integrated lightning ignition source simulation device according to claim 5, wherein the bottom of the first rotary power source is connected with the first sliding base, the first sliding base is connected with the base through a sliding rail arranged in the front-back direction, and the base is provided with a first linear driving mechanism for driving the first sliding base to move in the front-back direction.
7. The infrared temperature measurement high-speed photography imaging integrated lightning ignition source simulation device according to claim 1, wherein the third linear driving mechanism comprises a belt, the belt is connected with the sliding table, the belt is connected with more than two belt wheels, the belt wheels are connected with the rail base through the belt wheel shafts, and one of the belt wheel shafts is connected with the output end of the second rotary power source.
8. The infrared temperature measurement high-speed photography imaging integrated lightning ignition source simulation device according to claim 1, wherein a fixed end of a lead on the mounting disk is connected with a sliding block, the sliding block is connected with the mounting disk through a sliding rail arranged along the radial direction of the mounting disk, and the sliding block is connected with a sixth linear driving mechanism for driving the sliding block to move along the radial direction of the mounting disk.
9. The infrared temperature measurement high-speed photography imaging integrated lightning ignition source simulation device according to claim 1, wherein the sixth linear driving mechanism comprises a sliding sleeve sleeved on the main shaft, the sliding sleeve is connected with the sliding block through a connecting rod, two ends of the connecting rod are respectively hinged with the sliding block and the sliding sleeve, and the sliding sleeve is connected with a seventh linear driving mechanism for driving the seventh linear driving mechanism to move along the axial direction of the main shaft.
10. The infrared temperature measurement high-speed photography imaging integrated lightning ignition source simulation device as claimed in claim 1, wherein the two observation windows are respectively located at two sides of the test piece, and the oscillography port is arranged at the top of the test piece.
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