CN111781429B - Anechoic chamber special for information electromagnetic compatibility system and installation process thereof - Google Patents
Anechoic chamber special for information electromagnetic compatibility system and installation process thereof Download PDFInfo
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- CN111781429B CN111781429B CN202010568756.1A CN202010568756A CN111781429B CN 111781429 B CN111781429 B CN 111781429B CN 202010568756 A CN202010568756 A CN 202010568756A CN 111781429 B CN111781429 B CN 111781429B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0807—Measuring electromagnetic field characteristics characterised by the application
- G01R29/0814—Field measurements related to measuring influence on or from apparatus, components or humans, e.g. in ESD, EMI, EMC, EMP testing, measuring radiation leakage; detecting presence of micro- or radiowave emitters; dosimetry; testing shielding; measurements related to lightning
- G01R29/0821—Field measurements related to measuring influence on or from apparatus, components or humans, e.g. in ESD, EMI, EMC, EMP testing, measuring radiation leakage; detecting presence of micro- or radiowave emitters; dosimetry; testing shielding; measurements related to lightning rooms and test sites therefor, e.g. anechoic chambers, open field sites or TEM cells
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Abstract
The invention discloses a special anechoic chamber for an information electromagnetic compatibility system, which comprises a shell, wherein the top of the shell is fixedly connected with a first motor, the top of the shell is movably connected with a first bearing, and the top of the first bearing is movably connected with a threaded sleeve. According to the invention, the fixed block can be rotated by arranging the first motor, the first bearing, the threaded sleeve, the rotating screw and the second bearing, the position of the first wave-absorbing plate can be adjusted by arranging the connecting block, the first movable rod, the second movable rod, the electric push rod, the supporting block, the sliding block, the movable block, the fixed rod, the baffle, the movable plate, the pull rope and the hanging ring, the fixed plate can be moved by arranging the first pulley, the pulley frame, the third motor and the second pulley, and the second motor, the double-headed screw, the moving block, the fixed frame and the clamping block can be used for fixing the second wave-absorbing plate, so that the wave-absorbing material in the anechoic chamber is convenient to replace, and the use of people is facilitated.
Description
Technical Field
The invention relates to the technical field of anechoic chambers, in particular to an anechoic chamber special for an information electromagnetic compatibility system and an installation process thereof.
Background
The anechoic chamber is called as a shielding anechoic chamber or a non-reflection shielding chamber and is formed by combining an electromagnetic shielding chamber and a radio frequency wave-absorbing material, and the six anechoic chambers with the inner surfaces all coated with the wave-absorbing material are called as full anechoic chambers and can simulate free space; wave-absorbing materials are laid on the four inner side surfaces and the ceiling, an anechoic chamber with the ground surface as a reflecting surface is called a semi-anechoic chamber, an open test field can be simulated, and the wave-absorbing materials in the anechoic chamber are composed of single-layer ferrite pieces with the working frequency range of 30 MHz-1000 MHz and conical carbon-containing sponge wave-absorbing materials.
The existing anechoic chamber is characterized in that due to the structural design, wave-absorbing materials in the existing anechoic chamber are basically fixedly arranged on the inner wall of the anechoic chamber and the ceiling and cannot be randomly disassembled, and when the wave-absorbing materials are required to be replaced after being used for a long time, the wave-absorbing materials are difficult to disassemble and replace.
Disclosure of Invention
The invention aims to provide a special anechoic chamber for an information electromagnetic compatibility system and an installation process thereof, which have the advantage of convenient use of the anechoic chamber and solve the problem of inconvenient use of the anechoic chamber.
In order to achieve the purpose, the invention provides the following technical scheme: a special anechoic chamber for an information electromagnetic compatibility system comprises a shell, wherein a first motor is fixedly connected to the top of the shell, a first bearing is movably connected to the top of the shell, a screw sleeve is movably connected to the top of the first bearing, the surface of a rotating shaft of the first motor is in transmission connection with the screw sleeve through a belt, a rotating screw rod is in threaded connection with the inside of the screw sleeve, the top end of the rotating screw rod penetrates through the outside of the screw sleeve, a second bearing is fixedly connected to the bottom end of the rotating screw rod penetrates through the inside of the shell, a fixed block is movably connected to the bottom of the second bearing, connecting blocks are fixedly connected to the top and the bottom of the back of an inner cavity of the fixed block, a first movable rod is movably connected to the inside of each connecting block through a pin shaft, a second movable rod is movably connected to the surface of the first movable rod through a pin shaft, an electric push rod is movably connected to the inside of the first movable rod through a pin shaft, the surface of the electric push rod is movably connected with a second movable rod through a pin shaft, the surface of the second movable rod is movably connected with a supporting block through a pin shaft, the front of the supporting block is fixedly connected with a sliding block, the surface of the sliding block is movably connected with a movable block, the front of the movable block penetrates through the outer part of the fixed block and is fixedly connected with a fixed rod, the surface of the fixed rod is in threaded connection with a baffle plate, the surface of the fixed rod is movably connected with a movable plate, the inner part of the movable plate is movably connected with a pull rope, two ends of the pull rope penetrate through the outer part of the movable plate and is movably connected with a hanging ring, the bottom of the hanging ring is fixedly connected with a first wave absorbing plate, two sides of the inner part of the shell are movably connected with first pulleys, the surface of each first pulley is movably connected with a pulley frame through a pin shaft, the top of each pulley frame is fixedly connected with a fixed plate, and two sides of each fixed plate are respectively and fixedly connected with a second motor and a third motor, the inner part of the fixed plate is movably connected with a double-ended screw, two ends of the double-ended screw penetrate to the outer part of the fixed plate, the surface of the second motor rotating shaft is in transmission connection with the double-ended screw through a belt, the surface of the double-ended screw is in threaded connection with a moving block, the top of the moving block is fixedly connected with a fixed frame, one side of the fixed frame is fixedly connected with a clamping block, a second wave absorbing plate is movably connected between the two clamping blocks, the bottom of the second wave absorbing plate is movably connected with the bottom of the fixed plate, one end of the third motor rotating shaft is fixedly connected with a second pulley, the surface of the second pulley is in sliding connection with the inner wall of the shell, the top of one side of the second wave absorbing plate is fixedly connected with a connecting frame, the inner part of the connecting frame is movably connected with a connecting plate, and the back of the connecting plate penetrates to the outer part of the connecting frame and is fixedly connected with a supporting plate, one side of backup pad and the inner wall fixed connection of casing, one side fixedly connected with guide arm of connecting plate, the other end of guide arm runs through to the outside of link, the inside swing joint of link has the inserted bar, the top of inserted bar runs through to the outside of link.
Preferably, the top end of the rotating screw is fixedly connected with a stop block, and the stop block is circular.
Preferably, the equal fixedly connected with guide block in top and the bottom of movable block, the surface of guide block and the inner wall swing joint of fixed block, the equal fixedly connected with gag lever post in top and the bottom of fixed block inner chamber, the front end of gag lever post runs through to the outside of fixed block.
Preferably, both sides of the top of the inner cavity of the shell are fixedly connected with fixing shafts, the bottom ends of the fixing shafts are fixedly connected with fixing balls, and the surfaces of the fixing balls are movably connected with the inner wall of the first wave absorption plate.
Preferably, both ends of the double-ended screw are fixedly connected with limiting plates, one side of each limiting plate is fixedly connected with a connecting shaft, and one end of each connecting shaft penetrates through the inner wall of each moving block to be movably connected.
Preferably, a sliding groove is formed in the movable block, and the inner wall of the sliding groove is movably connected with the surface of the sliding block.
A process for installing an anechoic chamber special for an information electromagnetic compatibility system is characterized by comprising the following steps: the method comprises the following steps:
step a: starting a first motor, driving a threaded sleeve to rotate through a belt by the first motor, driving a rotating screw rod to rotate through the threaded sleeve, driving a fixed block to move downwards through a second bearing by the rotating screw rod, enabling a movable block on the fixed block to move downwards, driving a pull rope to move downwards through a fixed rod on the movable block, enabling a first wave absorbing plate to move downwards through a lifting ring by the pull rope, then unscrewing a baffle, removing the movable block, and replacing the first wave absorbing plate;
step b: the inserting rod is taken down, the third motor is started, the third motor drives the second pulley to rotate, the fixed plate moves forwards, the connecting frame on the second wave-absorbing plate is separated from the connecting plate, the guide rod is separated from the connecting frame, and the second wave-absorbing plate moves forwards through the clamping block on the fixed plate;
step c: and starting the second motor, driving the double-end screw to rotate by the second motor, driving the moving block to move left and right by the double-end screw, driving the fixed frame to move left and right by the moving block, driving the clamping block to move left and right by the fixed frame, separating the clamping block from the second wave-absorbing plate, and replacing the second wave-absorbing plate.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the fixed block can be rotated by arranging the first motor, the first bearing, the threaded sleeve, the rotating screw and the second bearing, the position of the first wave-absorbing plate can be adjusted by arranging the connecting block, the first movable rod, the second movable rod, the electric push rod, the supporting block, the sliding block, the movable block, the fixed rod, the baffle, the movable plate, the pull rope and the hanging ring, the fixed plate can be moved by arranging the first pulley, the pulley frame, the third motor and the second pulley, and the second motor, the double-headed screw, the moving block, the fixed frame and the clamping block can be used for fixing the second wave-absorbing plate, so that the wave-absorbing material in the anechoic chamber is convenient to replace, and the use of people is facilitated.
2. According to the invention, the stop block is arranged, so that the rotating screw rod moves more stably, the guide block and the limiting rod are arranged, so that the movable block moves more stably, the first wave absorbing plate is fixed in position by the fixed shaft and the fixed ball, the moving block moves more stably by the limiting plate and the connecting shaft, and the sliding block can move in the movable block by the sliding chute.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side sectional view of the structural mounting block of the present invention;
FIG. 3 is an enlarged view of A of FIG. 1 according to the present invention;
FIG. 4 is an enlarged view of B of FIG. 1 according to the present invention;
fig. 5 is a perspective view of the structural connecting frame of the present invention.
In the figure: 1. a housing; 2. a first motor; 3. a first bearing; 4. a threaded sleeve; 5. rotating the screw; 6. a stopper; 7. a second bearing; 8. a fixed block; 9. connecting blocks; 10. a first movable bar; 11. a second movable bar; 12. a support block; 13. a slider; 14. a movable block; 15. fixing the rod; 16. a baffle plate; 17. a movable plate; 18. pulling a rope; 19. a hoisting ring; 20. a first absorber plate; 21. a first pulley; 22. a pulley yoke; 23. a fixing plate; 24. a second motor; 25. a third motor; 26. a double-ended screw; 27. a moving block; 28. a fixed mount; 29. a clamping block; 30. a second wave absorbing plate; 31. a second pulley; 32. a connecting frame; 33. a connecting plate; 34. a support plate; 35. a guide bar; 36. inserting a rod; 37. a guide block; 38. a limiting rod; 39. a fixed shaft; 40. fixing the ball; 41. a limiting plate; 42. a chute; 43. a connecting shaft; 44. an electric push rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a special anechoic chamber for an information electromagnetic compatibility system comprises a housing 1, wherein both sides of the top of an inner cavity of the housing 1 are fixedly connected with a fixed shaft 39, the bottom end of the fixed shaft 39 is fixedly connected with a fixed ball 40, the surface of the fixed ball 40 is movably connected with the inner wall of a first wave absorbing plate 20, the position of the first wave absorbing plate 20 is fixed by arranging the fixed shaft 39 and the fixed ball 40, the top of the housing 1 is fixedly connected with a first motor 2, the top of the housing 1 is movably connected with a first bearing 3, the top of the first bearing 3 is movably connected with a threaded sleeve 4, the surface of a rotating shaft of the first motor 2 is in transmission connection with the threaded sleeve 4 through a belt, the inner thread of the threaded sleeve 4 is connected with a rotating screw 5, the top end of the rotating screw 5 is fixedly connected with a stop 6, the stop 6 is circular, the rotating screw 5 is more stably moved by arranging the stop 6, the top end of the rotating screw 5 penetrates through the outer part of the threaded sleeve 4, the bottom end of the rotating screw 5 penetrates into the shell 1 and is fixedly connected with a second bearing 7, the bottom of the second bearing 7 is movably connected with a fixed block 8, the top and the bottom of the back of the inner cavity of the fixed block 8 are fixedly connected with connecting blocks 9, the inside of the connecting blocks 9 is movably connected with a first movable rod 10 through a pin shaft, the surface of the first movable rod 10 is movably connected with a second movable rod 11 through a pin shaft, the inside of the first movable rod 10 is movably connected with an electric push rod 44 through a pin shaft, the surface of the electric push rod 44 is movably connected with the second movable rod 11 through a pin shaft, the surface of the second movable rod 11 is movably connected with a supporting block 12 through a pin shaft, the front of the supporting block 12 is fixedly connected with a sliding block 13, the surface of the sliding block 13 is movably connected with a movable block 14, the top and the bottom of the movable block 14 are fixedly connected with a guide block 37, and the surface of the guide block 37 is movably connected with the inner wall of the fixed block 8, the top and the bottom of the inner cavity of the fixed block 8 are fixedly connected with a limiting rod 38, the front end of the limiting rod 38 penetrates the outside of the fixed block 8, the movable block 14 is more stably moved by arranging a guide block 37 and the limiting rod 38, a sliding groove 42 is formed inside the movable block 14, the inner wall of the sliding groove 42 is movably connected with the surface of the sliding block 13, the sliding block 13 can move in the movable block 14 by arranging the sliding groove 42, the front surface of the movable block 14 penetrates the outside of the fixed block 8 and is fixedly connected with a fixed rod 15, the surface of the fixed rod 15 is connected with a baffle 16 through a thread, the surface of the fixed rod 15 is movably connected with a movable plate 17, the inside of the movable plate 17 is movably connected with a pull rope 18, the two ends of the pull rope 18 penetrate the outside of the movable plate 17 and are movably connected with a hanging ring 19, the bottom of the hanging ring 19 is fixedly connected with a first wave absorbing plate 20, and the two sides inside of the shell 1 are movably connected with first pulleys 21, the surface of the first pulley 21 is movably connected with a pulley frame 22 through a pin shaft, the top of the pulley frame 22 is fixedly connected with a fixed plate 23, two sides of the fixed plate 23 are respectively and fixedly connected with a second motor 24 and a third motor 25, the inside of the fixed plate 23 is movably connected with a double-headed screw 26, two ends of the double-headed screw 26 are both fixedly connected with a limit plate 41, one side of the limit plate 41 is fixedly connected with a connecting shaft 43, one end of the connecting shaft 43 penetrates through the inner wall of a moving block 27 to be movably connected, the moving block 27 moves more stably by arranging the limit plate 41 and the connecting shaft 43, two ends of the double-headed screw 26 both penetrate through the outside of the fixed plate 23, the surface of the rotating shaft of the second motor 24 is in transmission connection with the double-headed screw 26 through a belt, the surface of the double-headed screw 26 is in threaded connection with the moving block 27, the top of the moving block 27 is fixedly connected with a fixed frame 28, and one side of the fixed frame 28 is fixedly connected with a clamping block 29, a second wave absorbing plate 30 is movably connected between the two clamping blocks 29, the bottom of the second wave absorbing plate 30 is movably connected with the bottom of the fixing plate 23, one end of a rotating shaft of the third motor 25 is fixedly connected with a second pulley 31, the surface of the second pulley 31 is connected with the inner wall of the shell 1 in a sliding manner, the top of one side of the second wave absorbing plate 30 is fixedly connected with a connecting frame 32, the inside of the connecting frame 32 is movably connected with a connecting plate 33, the back of the connecting plate 33 penetrates through the outside of the connecting frame 32 and is fixedly connected with a supporting plate 34, one side of the supporting plate 34 is fixedly connected with the inner wall of the shell 1, one side of the connecting plate 33 is fixedly connected with a guide rod 35, the other end of the guide rod 35 penetrates through the outside of the connecting frame 32, the inside of the connecting frame 32 is movably connected with an insert rod 36, the top end of the insert rod 36 penetrates through the outside of the connecting frame 32, and by arranging a first motor 2, a first bearing 3, a threaded sleeve 4, a rotating screw rod 5 and a second bearing 7, the fixed block 8 can be rotated, the position of the first wave absorbing plate 20 can be adjusted by arranging the connecting block 9, the first movable rod 10, the second movable rod 11, the electric push rod 44, the supporting block 12, the sliding block 13, the movable block 14, the fixed rod 15, the baffle 16, the movable plate 17, the pull rope 18 and the hanging ring 19, the fixed plate 23 can be moved by arranging the first pulley 21, the pulley frame 22, the third motor 25 and the second pulley 31, the double-headed screw 26, the movable block 27, the fixed frame 28 and the clamping block 29 can be fixed by arranging the second motor 24, the wave absorbing material in the anechoic chamber can be conveniently replaced, and the use of people is facilitated.
A process for installing an anechoic chamber special for an information electromagnetic compatibility system comprises the following steps:
step a: starting the first motor 2, driving a threaded sleeve 4 to rotate by the first motor 2 through a belt, driving a rotating screw rod 5 to rotate by the threaded sleeve 4, driving a fixed block 8 to move downwards by the rotating screw rod 5 through a second bearing 7, enabling a movable block 14 on the fixed block 8 to move downwards, driving a pull rope 18 to move downwards by a fixed rod 15 on the movable block 14, enabling a first wave absorbing plate 20 to move downwards by the pull rope 18 through a hanging ring 19, then unscrewing a baffle 16, removing the movable block 14, and replacing the first wave absorbing plate 20;
step b: the inserting rod 36 is taken down, the third motor 25 is started, the third motor 25 drives the second pulley 31 to rotate, the fixing plate 23 moves forwards, the connecting frame 32 on the second wave absorbing plate 30 is separated from the connecting plate 33, the guide rod 35 is separated from the connecting frame 32, and the second wave absorbing plate 30 moves forwards through the clamping block 29 on the fixing plate 23;
step c: and starting the second motor 24, driving the double-threaded screw 26 to rotate by the second motor 24, driving the moving block 27 to move left and right by the double-threaded screw 26, driving the fixed frame 28 to move left and right by the moving block 27, driving the clamping block 29 to move left and right by the fixed frame 28, separating the clamping block 29 from the second wave-absorbing plate 30, and replacing the second wave-absorbing plate 30.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A special anechoic chamber for an information electromagnetic compatibility system comprises a shell (1), and is characterized in that: the top of the shell (1) is fixedly connected with a first motor (2), the top of the shell (1) is movably connected with a first bearing (3), the top of the first bearing (3) is movably connected with a threaded sleeve (4), the surface of a rotating shaft of the first motor (2) is in transmission connection with the threaded sleeve (4) through a belt, the inner thread of the threaded sleeve (4) is connected with a rotating screw (5), the top end of the rotating screw (5) penetrates through the outer part of the threaded sleeve (4), the bottom end of the rotating screw (5) penetrates through the inner part of the shell (1) and is fixedly connected with a second bearing (7), the bottom of the second bearing (7) is movably connected with a fixed block (8), the top and the bottom of the inner cavity back of the fixed block (8) are both fixedly connected with a connecting block (9), the inner part of the connecting block (9) is movably connected with a first movable rod (10) through a pin shaft, the surface of the first movable rod (10) is movably connected with a second movable rod (11) through a pin shaft, the inside of the first movable rod (10) is movably connected with an electric push rod (44) through a pin shaft, the surface of the electric push rod (44) is movably connected with the second movable rod (11) through a pin shaft, the surface of the second movable rod (11) is movably connected with a supporting block (12) through a pin shaft, the front of the supporting block (12) is fixedly connected with a sliding block (13), the surface of the sliding block (13) is movably connected with a movable block (14), the front of the movable block (14) penetrates through the outer part of the fixed block (8) and is fixedly connected with a fixed rod (15), the surface of the fixed rod (15) is in threaded connection with a baffle plate (16), the surface of the fixed rod (15) is movably connected with a movable plate (17), and the inside of the movable plate (17) is movably connected with a pull rope (18), the outer part of the two ends of the pull rope (18) penetrate through the movable plate (17) and is movably connected with a lifting ring (19), the bottom of the lifting ring (19) is fixedly connected with a first wave absorption plate (20), two sides of the inner part of the shell (1) are movably connected with first pulleys (21), the surface of each first pulley (21) is movably connected with a pulley frame (22) through a pin shaft, the top of each pulley frame (22) is fixedly connected with a fixed plate (23), two sides of each fixed plate (23) are respectively and fixedly connected with a second motor (24) and a third motor (25), the inner part of each fixed plate (23) is movably connected with a double-headed screw (26), two ends of each double-headed screw (26) penetrate through the outer part of the fixed plate (23), the surface of a rotating shaft of the second motor (24) is in transmission connection with the double-headed screw (26) through a belt, and the surface of the double-headed screw (26) is in threaded connection with a movable block (27), the top of the moving block (27) is fixedly connected with a fixed frame (28), one side of the fixed frame (28) is fixedly connected with clamping blocks (29), a second wave absorbing plate (30) is movably connected between the two clamping blocks (29), the bottom of the second wave absorbing plate (30) is movably connected with the bottom of the fixed plate (23), one end of a rotating shaft of the third motor (25) is fixedly connected with a second pulley (31), the surface of the second pulley (31) is slidably connected with the inner wall of the shell (1), the top of one side of the second wave absorbing plate (30) is fixedly connected with a connecting frame (32), the inside of the connecting frame (32) is movably connected with a connecting plate (33), the back of the connecting plate (33) penetrates through to the outside of the connecting frame (32) and is fixedly connected with a supporting plate (34), and one side of the supporting plate (34) is fixedly connected with the inner wall of the shell (1), one side fixedly connected with guide arm (35) of connecting plate (33), the other end of guide arm (35) runs through to the outside of link (32), the inside swing joint of link (32) has inserted bar (36), the top of inserted bar (36) runs through to the outside of link (32).
2. The anechoic chamber for use in an information electromagnetic compatibility system according to claim 1, wherein: the top end of the rotating screw rod (5) is fixedly connected with a stop block (6), and the stop block (6) is circular.
3. The anechoic chamber for use in an information electromagnetic compatibility system according to claim 1, wherein: the top and the equal fixedly connected with guide block (37) in bottom of movable block (14), the surface of guide block (37) and the inner wall swing joint of fixed block (8), the top and the equal fixedly connected with gag lever post (38) in bottom of fixed block (8) inner chamber, the front end of gag lever post (38) runs through to the outside of fixed block (8).
4. The anechoic chamber for use in an information electromagnetic compatibility system according to claim 1, wherein: the two sides of the top of the inner cavity of the shell (1) are fixedly connected with fixing shafts (39), the bottom ends of the fixing shafts (39) are fixedly connected with fixing balls (40), and the surfaces of the fixing balls (40) are movably connected with the inner wall of the first wave absorbing plate (20).
5. The anechoic chamber for use in an information electromagnetic compatibility system according to claim 1, wherein: limiting plates (41) are fixedly connected to two ends of the double-end screw (26), a connecting shaft (43) is fixedly connected to one side of each limiting plate (41), and one end of each connecting shaft (43) penetrates through the moving block (27).
6. The anechoic chamber for use in an information electromagnetic compatibility system according to claim 1, wherein: a sliding groove (42) is formed in the movable block (14), and the inner wall of the sliding groove (42) is movably connected with the surface of the sliding block (13).
7. An installation method for the anechoic chamber dedicated to the information electromagnetic compatibility system of any one of claims 1 to 6, characterized by comprising: the method comprises the following steps:
step a: starting a first motor (2), driving a threaded sleeve (4) to rotate by the first motor (2) through a belt, driving a rotating screw rod (5) to rotate by the threaded sleeve (4), driving a fixed block (8) to move downwards by the rotating screw rod (5) through a second bearing (7), enabling a movable block (14) on the fixed block (8) to move downwards, driving a pull rope (18) to move downwards by a fixed rod (15) on the movable block (14), enabling a first wave absorbing plate (20) to move downwards by the pull rope (18) through a hanging ring (19), then screwing down a baffle (16), taking down the movable block (14), and replacing the first wave absorbing plate (20);
step b: the inserting rod (36) is taken down, the third motor (25) is started, the third motor (25) drives the second pulley (31) to rotate, the fixing plate (23) moves forwards, the connecting frame (32) on the second wave absorbing plate (30) is separated from the connecting plate (33), the guide rod (35) is separated from the connecting frame (32), and the second wave absorbing plate (30) moves forwards through the clamping block (29) on the fixing plate (23);
step c: and starting the second motor (24), driving the double-head screw (26) to rotate by the second motor (24), driving the moving block (27) to move left and right by the double-head screw (26), driving the fixed frame (28) to move left and right by the moving block (27), driving the clamping block (29) to move left and right by the fixed frame (28), separating the clamping block (29) from the second wave absorbing plate (30), and replacing the second wave absorbing plate (30).
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| CN202010568756.1A CN111781429B (en) | 2020-06-19 | 2020-06-19 | Anechoic chamber special for information electromagnetic compatibility system and installation process thereof |
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| CN111781429B true CN111781429B (en) | 2022-03-22 |
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| JP2012256673A (en) * | 2011-06-08 | 2012-12-27 | Tokyu Construction Co Ltd | Electromagnetic wave shielding performance measurement chamber and electromagnetic wave shielding performance measuring method |
| JP2017166262A (en) * | 2016-03-17 | 2017-09-21 | 株式会社巴コーポレーション | Construction method of anechoic chamber |
| CN206423048U (en) * | 2016-12-28 | 2017-08-18 | 南京波平电子科技有限公司 | A kind of detachable big module absorbing material |
| CN107607796A (en) * | 2017-09-12 | 2018-01-19 | 中国电子科技集团公司第四十研究所 | A kind of track-type facilities for microwave dark room antenna measurement |
| CN208421078U (en) * | 2018-07-06 | 2019-01-22 | 南京洛普科技有限公司 | A kind of electromagnetic wave darkroom expert hangs the suction wave processing unit of equipment |
| CN111155671A (en) * | 2019-12-26 | 2020-05-15 | 常州中硕电子有限公司 | Anechoic chamber convenient for replacing wave-absorbing material and installation method |
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