CN219434897U - Reflection unit fixing device - Google Patents
Reflection unit fixing device Download PDFInfo
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- CN219434897U CN219434897U CN202320244857.2U CN202320244857U CN219434897U CN 219434897 U CN219434897 U CN 219434897U CN 202320244857 U CN202320244857 U CN 202320244857U CN 219434897 U CN219434897 U CN 219434897U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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- Y02E10/52—PV systems with concentrators
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Abstract
The application relates to a reflection unit fixing device, and relates to the technical field of electromagnetic compatibility testing, which comprises a first double-layer square steel and I-steel, wherein a plurality of first double-layer square steels are connected end to form a rectangular frame, and the I-steel is fixedly arranged on the upper surface of the top corner of the rectangular frame; the four corners of the rectangular frame are fixedly provided with second double-layer square steel, two ends of the second double-layer square steel are abutted against the inner side walls of the rectangular frame, the upper surface of the I-shaped steel is provided with high-strength bolts, and the high-strength bolts can fixedly connect the base of the reflecting unit with the upper surface of the I-shaped steel; the below of rectangle frame is provided with damping device and places the piece, damping device is used for reducing the vibrations that produce when the reflection unit operates, place the piece and make damping device and ground metal sheet fixed connection. The reflection unit mounting structure has the effects of improving the stability of mounting the reflection unit and reducing the occurrence probability of resonance effect.
Description
Technical Field
The application relates to the technical field of electromagnetic compatibility testing, in particular to a reflecting unit fixing device.
Background
The existing electromagnetic reverberation room mainly comprises a mechanical stirring reverberation room, a source stirring reverberation room and the like, and the stirring methods of the various types of reverberation rooms are different, but the purposes are the same, and the electromagnetic field distribution in the reverberation room is changed so as to realize the statistical uniformity of the electromagnetic field of a test area in the reverberation room.
The mechanical stirring reverberation chamber consists of a metal resonant cavity and a built-in stirrer, wherein the built-in stirrer is a reflecting unit; in the electromagnetic compatibility test, the built-in stirrer is in a connection rotation mode, and the stirring speed of the built-in stirrer must ensure that the tested equipment has enough time to respond to a changing field in the cavity, so that in order to study the influence of the stirring speed of the built-in stirrer on a radiation sensitivity test result, various stirring speeds between 1.5r/min and 10r/min are set, and irradiation tests are respectively carried out on the tested equipment and conclusion is drawn.
With respect to the related art among the above, the inventors found that there are the following problems in this technology: in electromagnetic compatibility test, the built-in stirrer is always in a working state of high-speed operation, and in the process, the stirring speed of the built-in stirrer is gradually increased to meet the requirement of experiments, and along with the increasing of the stirring speed of the built-in stirrer, the generated vibration frequency is also higher and higher, and when the built-in stirrer vibrates, the built-in stirrer is often loose in installation and poor in stability, and the probability of resonance effect of the built-in stirrer is also gradually increased for a long time, so that the probability of damage to the built-in stirrer is increased, so that the built-in stirrer needs to be improved.
Disclosure of Invention
In order to improve the stability of the installation of the reflecting unit and reduce the occurrence probability of resonance effect, the application provides a reflecting unit fixing device.
The reflecting unit fixing device provided by the application adopts the following technical scheme:
the reflection unit fixing device comprises a first double-layer square steel and I-steel, wherein a plurality of first double-layer square steels are connected end to form a rectangular frame, and the I-steel is fixedly arranged on the upper surface of the vertex angle of the rectangular frame; the four corners department of rectangle frame is all fixed and is provided with the second double-deck square steel, the both ends and the inside wall butt of rectangle frame of second double-deck square steel, the upper surface of I-steel is provided with high strength bolt, high strength bolt can be with the base of reflection unit and the upper surface fixed connection of I-steel.
By adopting the technical scheme, the square steel is welded and fixed on the upper surface of the vertex angle of the rectangular frame, so that the overall height of the fixing device can be improved, and the base of the reflecting unit is conveniently fixed by using a high-strength bolt; and the size of the rectangular frame formed by connecting the first double-layer square steel end to end is consistent with the outer size of the support of the reflecting unit, and the second double-layer square steel is welded and fixed at four corners of the rectangular frame, so that the rigidity of the rectangular frame is enhanced, the probability of deformation of the rectangular frame due to vibration and other factors when the reflecting unit operates is reduced, the stability of the fixing device on the installation of the reflecting unit is improved, and the integral counterweight of the fixing device is increased, so that the probability of resonance effect is reduced.
Preferably, the lower part of the rectangular frame is provided with a damping device for reducing vibration generated when the reflection unit operates and a placing piece for fixedly connecting the damping device with the ground metal plate.
Through adopting above-mentioned technical scheme, damping device has the effect that reduces the vibrations that produce when the reflection unit operates, and damping device has increased the whole counter weight of this fixing device through placing piece and ground metal sheet fixed connection to be favorable to reducing the probability that takes place resonance effect when the reflection unit operates.
Preferably, the damping device comprises a bearing piece, a first spring and a compression cylinder, wherein the first spring and the compression cylinder are both fixed on the placement piece, one end of the first spring, which is far away from the placement piece, and one end of a piston rod of the compression cylinder, which is far away from the placement piece, are both fixedly connected with the bearing piece, and the bearing piece is fixedly connected with the lower surface of the rectangular frame.
By adopting the technical scheme, the first spring has stronger elasticity, the compression cylinder has the expansion performance, when the reflecting unit runs at a high speed, the damping device works, and the first spring and the compression cylinder stretch and compress according to the vibration generated by the reflecting unit, so that the vibration of the reflecting unit is buffered, the vibration generated when the reflecting unit runs is reduced, the probability of resonance effect generated by the vibration is reduced, the probability of damage of the fixing device due to the resonance effect is reduced, and the service life of the fixing device is prolonged; and the compression cylinder also plays a supporting role on the bearing piece.
Preferably, a second spring is arranged on the piston rod of the compression cylinder in a surrounding mode, one end of the second spring is fixedly connected with the lower surface of the bearing piece, and the other end of the second spring is fixedly connected with one side face, close to the piston rod, of the compression cylinder.
Through adopting above-mentioned technical scheme, the second spring possesses stronger elasticity, and when flexible cylinder stretched, compressed the operation repeatedly, the second spring has increased flexible cylinder's flexible performance, has further improved flexible cylinder's cushioning nature.
Preferably, the bearing piece is a bearing plate, the inside of the bearing plate is wavy, the upper surface of the bearing plate is fixedly connected with the lower surface of the rectangular frame, and the lower surface of the bearing plate is fixedly connected with the end, away from the placing piece, of the first spring and the end, away from the placing piece, of the piston rod of the compression cylinder.
By adopting the technical scheme, the bearing plate is wavy, so that the vibration frequency generated when the bearing plate runs at high speed with the double-layer square steel and the I-steel is different, and the probability of resonance effect of the fixing device is further reduced.
Preferably, a sealing element is arranged at the joint of the bearing plate and the rectangular frame.
By adopting the technical scheme, the sealing element is C20 concrete, the C20 concrete is poured into the connecting gap between the bearing plate and the rectangular frame, the overall compressive strength of the fixing device is improved, and the stability of the fixing device is further improved.
Preferably, the placing piece is a damping rubber base plate, and the damping rubber base plate is fixedly connected with one end of the compression cylinder, which is far away from the bearing plate, and one end of the first spring, which is far away from the bearing plate.
Through adopting above-mentioned technical scheme, damping rubber backing plate has the absorbing effect to can reduce the amplification of resonance amplitude, further reduce the probability that takes place resonance effect, reduce the damage that resonance efficiency caused the device, improve the life of device.
Preferably, a sealing elastic ring is fixedly arranged on the side wall of the damping rubber backing plate, and one side, far away from the damping rubber backing plate, of the sealing elastic ring is fixedly connected with the side wall of the bearing plate.
Through adopting above-mentioned technical scheme, sealed elastic ring encircles and sets up on the lateral wall of damping rubber backing plate and bearing plate, reaches sealing the interval between bearing plate and the damping rubber backing plate to in having reduced debris such as dust and getting into this interval, influencing damping device normal operating's possibility, improved damping device's security of operation.
Preferably, an expansion screw is arranged on the peripheral wall of the sealing elastic ring, and one end of the expansion screw, which is far away from the self nut, is fixedly connected with the side wall of the bearing plate or the damping rubber backing plate.
Through adopting above-mentioned technical scheme, the inflation screw possesses stronger fastening effect, and simple to operate, has not only improved the convenience to sealed elastic ring installation, is favorable to improving the steadiness to sealed elastic ring installation still.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the first double-layer square steel, the I-steel, the second double-layer square steel, the high-strength bolts and the damping device are used, the first square steel is connected end to form a rectangular frame, the I-steel is fixedly arranged on the upper surface of the top corner of the rectangular frame, the overall height of the fixing device is improved, the base of the reflecting unit is conveniently arranged on the I-steel through the high-strength bolts, the two ends of the second double-layer square steel are welded and fixed with the inner side wall of the rectangular frame, the rigidity of the rectangular frame is improved, the probability that the rectangular frame deforms due to vibration and other factors when the reflecting unit operates is reduced, and the stability of the fixing device for mounting the reflecting unit is improved; the damping device has the effect of reducing vibration generated during operation of the reflecting unit, so that the probability of resonance effect during operation of the reflecting unit is reduced.
2. Through the bearing plate, the inside wavy that is of bearing plate, when the reflection unit high-speed operation, the vibration frequency that the bearing plate produced has the difference with the vibration frequency that double-deck square steel and I-steel produced to further reduce the probability that the device takes place resonance effect.
3. Through damping rubber backing plate, damping rubber backing plate has the effect of shock attenuation to can reduce the amplification of resonance amplitude, reduce the probability of taking place resonance effect, be favorable to reducing the damage that resonance efficiency caused to the device, improve the life of device.
Drawings
FIG. 1 is a schematic view of a reflector unit fixture according to an embodiment of the present application;
FIG. 2 is an enlarged schematic view of a portion A of FIG. 1;
fig. 3 is a partial sectional view taken along line B-B of fig. 1.
Reference numerals illustrate:
1. a first double-layer square steel; 2. i-steel; 21. a high strength bolt; 3. a second double-layer square steel; 4. a damping device; 41. a receiving member; 411. a bearing plate; 42. a first spring; 43. a compression cylinder; 431. a second spring; 5. a placement member; 51. damping rubber backing plate; 6. a seal; 7. sealing the elastic ring; 8. an expansion screw; 9. and a reflection unit.
Detailed Description
The present application is described in further detail below with reference to fig. 1-3.
The embodiment of the application discloses a reflection unit fixing device.
Example 1:
referring to fig. 1 and 2, the reflection unit fixing device includes a first double-layer square steel 1 and an i-steel 2, the first double-layer square steel 1 is formed by arranging two square steels at intervals, and a plurality of first double-layer square steels 1 are welded end to form a rectangular frame, and the i-steel 2 is welded and fixed on the upper surface of the vertex angle of the rectangular frame. The four corners department of rectangle frame all is provided with second double-deck square steel 3, and second double-deck square steel 3 is formed by the interval arrangement between two square steel, and the both ends of second double-deck square steel 3 all with the inside wall butt of rectangle frame. The upper surface of the I-steel 2 is provided with a high-strength bolt 21, and a screw rod of the high-strength bolt 21 penetrates through a base of the reflecting unit 9 and is fixedly penetrated in the I-steel 2, so that the effect of installing the reflecting unit 9 is achieved.
The implementation principle of the reflection unit fixing device in the embodiment of the application is as follows:
the first double-layer square steel 1 is welded end to form a rectangular frame, two ends of the second double-layer square steel 3 are welded and fixed with inner side walls at four corners of the rectangular frame respectively, and finally I-steel 2 is welded and fixed on the upper surfaces of four top corners of the rectangular frame respectively.
When the reflection unit 9 is required to be fixedly installed, the base of the reflection unit 9 can be fixedly connected with the I-steel 2 through the high-strength bolts 21, the size of the rectangular frame formed by the first double-layer square steel 1 is matched with the outer size of the support of the reflection unit 9, and the rigidity of the rectangular frame is enhanced by the reinforcement welding of the second double-layer square steel 3, so that the deformation probability of the rectangular frame is reduced; and the second double-layer square steel 3 is also beneficial to increasing the overall weight of the fixing device, and reduces the possibility of resonance effect.
Embodiment 2, this embodiment differs from embodiment 1 in that:
referring to fig. 3, a shock absorbing device 4 is disposed below the rectangular frame, the shock absorbing device 4 includes a bearing member 41, the bearing member 41 is a bearing plate 411, a sealing member 6 is disposed between the upper surface of the bearing plate 411 and the lower surface of the rectangular frame, wherein the sealing member 6 is C20 concrete, and the connection gap between the bearing plate 411 and the rectangular frame is filled by pouring the C20 concrete into the connection gap, so that the connection between the bearing plate 411 and the rectangular frame is stable; and the interior of the bearing plate 411 is wavy, so that the vibration frequency of the bearing plate 411 is different from the vibration frequency generated by the double-layer square steel and the I-steel 2, and the probability of resonance effect of the device can be reduced.
Referring to fig. 3, the shock absorbing device 4 further includes a first spring 42 and a compression cylinder 43, and a placement member 5 is disposed below the rectangular frame, the placement member 5 is a damping rubber pad 51, and the lower surface of the damping rubber pad 51 is welded with the ground metal plate in a seamless manner. One end of the first spring 42 is welded and fixed with the lower surface of the bearing plate 411, and the other end of the first spring 42 is welded and fixed with the upper surface of the damping rubber backing plate 51; and the end of the piston rod of the compression cylinder 43, which is far away from the compression cylinder 43, is welded and fixed with the upper surface of the bearing plate 411, and the end of the compression cylinder 43, which is far away from the bearing plate 411, is welded and fixed with the upper surface of the damping rubber backing plate 51.
Referring to fig. 1 and 3, when the reflection unit 9 is operated at a high speed, the damping device 4 is operated, and the first spring 42 and the compression cylinder 43 stretch and compress according to the vibration generated by the reflection unit 9, so that the vibration of the reflection unit 9 is buffered, the damping rubber pad 51 has a damping effect, the amplification of the resonance amplitude can be reduced, the damping device 4 and the damping rubber pad 51 are mutually matched, the probability of the resonance effect of the device due to the vibration is reduced, the damage possibility of the device due to the resonance efficiency is reduced, and the service life of the device is prolonged.
Referring to fig. 3, a second spring 431 is circumferentially arranged on a piston rod of the compression cylinder 43, one end of the second spring 431 is fixedly welded with the lower surface of the bearing plate 411, and the other end of the second spring 431 is fixedly connected with one side surface of the compression cylinder 43, which is close to the piston rod of the compression cylinder; the second spring 431 can perform repeated stretching and compression actions together with the compression cylinder 43, so that the expansion and contraction performance of the compression cylinder 43 is improved, and the cushioning performance of the compression cylinder 43 is further improved.
Referring to fig. 3, a sealing elastic ring 7 is fixedly arranged on the damping rubber pad 51, and one side of the sealing elastic ring 7 away from the damping rubber pad 51 is fixedly connected with the side wall of the bearing plate 411; and the peripheral wall of the sealing elastic ring 7 is penetrated with an expansion screw 8, and the expansion screw 8 ensures that the sealing elastic ring 7 is tightly connected with the side wall of the damping rubber backing plate 51 and the side wall of the bearing plate 411, so that the interval formed between the damping rubber backing plate 51 and the bearing plate 411 is sealed, other sundries such as dust are reduced to enter the interval, the normal operation of the damping device 4 is influenced, and the operation safety of the device is improved.
The implementation principle of the reflection unit fixing device in the embodiment of the application is as follows:
firstly, seamless welding is carried out on a damping rubber backing plate 51 and a ground metal plate, and then the base of the reflecting unit 9 is fixedly connected with the upper surface of the I-steel 2 through a high-strength bolt 21; the reflection unit 9 is activated, the reflection unit 9 enters into a high-speed operation, and the first spring 42 and the compression cylinder 43 perform stretching and compression according to vibration generated by the reflection unit 9.
The first spring 42 and the compression cylinder 43 play a role in buffering vibration of the reflecting unit 9, the damping rubber backing plate 51 has a damping effect, amplification of resonance amplitude is reduced, the damping device 4 and the damping rubber backing plate 51 are matched with each other, stability of installation of the reflecting unit 9 is improved, and therefore probability of resonance effect of the device due to vibration is reduced;
the foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in order, so: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (9)
1. Reflection unit fixing device, its characterized in that: the steel comprises a first double-layer square steel (1) and I-steel (2), wherein a plurality of the first double-layer square steel (1) are connected end to form a rectangular frame, and the I-steel (2) is fixedly arranged on the upper surface of the top corner of the rectangular frame; the four corners department of rectangle frame is all fixed and is provided with second double-deck square steel (3), the both ends and the inside wall butt of rectangle frame of second double-deck square steel (3), the upper surface of I-steel (2) is provided with high strength bolt (21), high strength bolt (21) can be with the base of reflection unit (9) and the upper surface fixed connection of I-steel (2).
2. The reflection unit fixing device according to claim 1, wherein: the below of rectangle frame is provided with damping device (4) and places piece (5), damping device (4) are used for reducing the vibrations that produce when reflection unit (9) are operated, place piece (5) make damping device (4) and ground metal sheet fixed connection.
3. The reflection unit fixing device according to claim 2, wherein: the damping device (4) comprises a bearing piece (41), a first spring (42) and a compression cylinder (43), wherein the first spring (42) and the compression cylinder (43) are fixed on the placement piece (5), one end of the first spring (42) away from the placement piece (5) and one end of a piston rod of the compression cylinder (43) away from the placement piece (5) are fixedly connected with the bearing piece (41), and the bearing piece (41) is fixedly connected with the lower surface of the rectangular frame.
4. A reflective unit fixture as claimed in claim 3, wherein: a second spring (431) is arranged on the piston rod of the compression cylinder (43) in a surrounding mode, one end of the second spring (431) is fixedly connected with the lower surface of the bearing piece (41), and the other end of the second spring (431) is fixedly connected with one side face, close to the piston rod, of the compression cylinder (43).
5. The reflective element fixture of claim 4, wherein: the bearing piece (41) is a bearing plate (411), the inside of the bearing plate (411) is wavy, the upper surface of the bearing plate (411) is fixedly connected with the lower surface of the rectangular frame, and the lower surface of the bearing plate (411) is fixedly connected with one end, far away from the placement piece (5), of the first spring (42) and one end, far away from the placement piece (5), of a piston rod of the compression cylinder (43).
6. The reflective element fixture of claim 5, wherein: and a sealing piece (6) is arranged at the joint of the bearing plate (411) and the rectangular frame.
7. The reflective element fixture of claim 5, wherein: the placing piece (5) is a damping rubber base plate (51), and the damping rubber base plate (51) is fixedly connected with one end, far away from the bearing plate (411), of the compression cylinder (43) and one end, far away from the bearing plate (411), of the first spring (42).
8. The reflective element fixture of claim 7, wherein: the side wall of the damping rubber backing plate (51) is fixedly provided with a sealing elastic ring (7), and one side, far away from the damping rubber backing plate (51), of the sealing elastic ring (7) is fixedly connected with the side wall of the bearing plate (411).
9. The reflective element fixture of claim 8, wherein: the sealing elastic ring is characterized in that an expansion screw (8) is arranged on the peripheral wall of the sealing elastic ring (7), and one end, far away from a self nut, of the expansion screw (8) is fixedly connected with the side wall of the bearing plate (411) or the damping rubber backing plate (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320244857.2U CN219434897U (en) | 2023-02-04 | 2023-02-04 | Reflection unit fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320244857.2U CN219434897U (en) | 2023-02-04 | 2023-02-04 | Reflection unit fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219434897U true CN219434897U (en) | 2023-07-28 |
Family
ID=87337507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320244857.2U Active CN219434897U (en) | 2023-02-04 | 2023-02-04 | Reflection unit fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219434897U (en) |
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2023
- 2023-02-04 CN CN202320244857.2U patent/CN219434897U/en active Active
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