CN219979784U - Rotary joint for radio frequency transmission - Google Patents
Rotary joint for radio frequency transmission Download PDFInfo
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- CN219979784U CN219979784U CN202320098432.5U CN202320098432U CN219979784U CN 219979784 U CN219979784 U CN 219979784U CN 202320098432 U CN202320098432 U CN 202320098432U CN 219979784 U CN219979784 U CN 219979784U
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- outer conductor
- fixing
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- inner conductor
- fixed
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 33
- 239000004020 conductor Substances 0.000 claims abstract description 325
- 235000014676 Phragmites communis Nutrition 0.000 claims description 55
- 239000000463 material Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- 229910052790 beryllium Inorganic materials 0.000 claims description 3
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 8
- 238000003780 insertion Methods 0.000 abstract description 6
- 230000037431 insertion Effects 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model provides a rotary joint for radio frequency transmission, which comprises an outer conductor fixing part, a rotary cavity part, an outer conductor rotary part, an inner conductor fixing part and an inner conductor rotary part, wherein the outer conductor fixing part is connected with the rotary cavity part; the rotating cavity part is sleeved on the outer conductor fixing part, and the outer conductor rotating part is fixedly connected with the rotating cavity part; the inner conductor rotating part is fixed on the outer conductor rotating part, the inner conductor fixing part is fixed on the outer conductor fixing part, the inner conductor fixing part is connected with the inner conductor rotating part in a sliding mode, and the inner conductor rotating part rotates 360 degrees around the inner conductor fixing part and the outer conductor fixing part along with the outer conductor rotating part and the rotating cavity part. The utility model converts the hard connection form of the feed pipe connection into the spring connection form, realizes the relative rotation of the fixed part and the rotating part under the condition of keeping excellent connection, and realizes the characteristics of simple and practical design structure, small insertion loss, stable rotation and strong environmental applicability under the premise of stable connection.
Description
Technical Field
The utility model relates to the technical field of radio broadcast communication, in particular to a rotary joint for radio frequency transmission.
Background
In a wireless electro-optical wave communication system, some antennas need to rotate around an axis to search, track a dynamic target or select a direction to transmit a radio frequency signal, in order to ensure that the antennas and a signal transmission line are reliably connected under the condition of rotation, a rotary joint is added between the antennas and the transmission line in the prior art so as to ensure effective transmission of the signal. However, most of the domestic high-power rotary joints are balanced lines, and most of the coaxial linear rotary joints with better signal transmission are small-sized coaxial rotary joints, so that the problems of small power capacity, large insertion loss, large rotary fluctuation, harsher environmental requirements and the like exist.
Disclosure of Invention
In order to solve the defects of the prior art, the utility model aims to provide a rotary joint for radio frequency transmission, which realizes the purposes of simple and practical design structure, small insertion loss, stable rotation and strong environmental applicability on the premise of ensuring stable connection so as to overcome the defects in the prior art.
In order to achieve the above object, the present utility model provides a rotary joint for radio frequency transmission, the rotary joint including an outer conductor fixing portion, a rotary cavity portion, an outer conductor rotating portion, an inner conductor fixing portion, an inner conductor rotating portion; wherein the outer conductor fixing part is fixedly connected to the rotary antenna bracket; the rotating cavity part is sleeved on the outer conductor fixing part and is axially fastened to the outer conductor fixing part through a thrust bearing fixing ring of the rotating cavity part; the outer conductor rotating part is fixedly connected to the rotating cavity part through a bolt, and is in sliding connection with the outer conductor fixing part through an arc-shaped reed of the outer conductor fixing part; the outer conductor rotating part is fixed on the rotating cavity part through a bolt so as to realize 360-degree rotation of the outer conductor rotating part along with the rotating cavity part around the outer conductor fixing part; the inner conductor fixing part is fixed on the outer conductor fixing part through a flange insert core of the inner conductor fixing part; the inner conductor rotating part is fixed on the outer conductor rotating part through a flange inserting core of the inner conductor rotating part, and the inner conductor rotating part is in sliding connection with the inner conductor fixing part through an inner conductor contact reed of the inner conductor fixing part, so that 360-degree rotation of the inner conductor rotating part along with the outer conductor rotating part and the rotating cavity part around the inner conductor fixing part is realized.
Through the technical scheme, the outer conductor rotating part is fixed on the rotating cavity part through the bolt, so that the outer conductor rotating part can stably rotate around the outer conductor fixing part along with the rotating cavity part, and the outer conductor rotating part is in sliding connection with the outer conductor fixing part through the arc-shaped reed of the outer conductor fixing part, and the two parts of the outer conductor are always in an excellent contact state in the rotating process; the inner conductor fixing part is fixed on the outer conductor fixing part through the flange inserting core of the inner conductor fixing part, so that the fixing between the inner conductor and the outer conductor of the fixing part can be realized, the section is in a stable state in the rotating process, the inner conductor rotating part is fixed on the outer conductor rotating part through the flange inserting core of the inner conductor rotating part, the relative rotating movement of the inner conductor fixing section and the outer conductor fixing section of the rotating joint is realized, and the inner conductor and the outer conductor are always in an excellent contact state in the moving process. Therefore, the utility model converts the hard connection form of the feed pipe connection into the spring connection form, realizes the relative rotation of the fixed part and the rotating part under the condition of keeping excellent connection, and can realize the characteristics of simple and practical design structure, small insertion loss, stable rotation and strong environmental applicability on the premise of ensuring stable connection and power capacity.
As a further explanation of the rotary joint for radio frequency transmission according to the present utility model, preferably, the outer conductor fixing portion includes a fixing base, a coaxial feed line outer conductor fixing section, an arcuate reed and a reed fixing plate; the coaxial feeder outer conductor fixing section is fixedly connected to the fixing base through bolts, and the arched reed is fixedly connected to the coaxial feeder outer conductor fixing section through a reed fixing plate. Through the technical scheme, the outer conductor fixing part can realize the split processing under the condition of stable structural performance so as to ensure the precision requirement of each component.
As a further explanation of the rotary joint for radio frequency transmission according to the present utility model, preferably, a reed mounting groove and a reed fixing screw hole are provided at a lower end of the coaxial feed line outer conductor fixing section, the arcuate reed is placed in the reed mounting groove, and the reed fixing plate is fixed to a lower end of the coaxial feed line outer conductor fixing section by a bolt to compress the arcuate reed. By the technical scheme, the reed and the coaxial feeder outer conductor can be tightly connected, and the conductivity is greatly enhanced.
As a further explanation of the rotary joint for radio frequency transmission according to the present utility model, preferably, the rotary cavity part includes a rotary cavity, a bearing fixing plate, a deep groove ball bearing, a shaft sleeve, a thrust bearing, and a thrust bearing fixing ring; the rotating cavity, the bearing fixing plate and the deep groove ball bearing are sleeved on the outer wall of the coaxial feeder outer conductor fixing section of the outer conductor fixing part together, the shaft sleeve, the thrust bearing and the thrust bearing fixing ring are sleeved on the outer wall of the coaxial feeder outer conductor fixing section in sequence, and the thrust bearing fixing ring is fixed on the coaxial feeder outer conductor fixing section of the outer conductor fixing part through bolts, so that the rotating cavity part and the outer conductor fixing part are axially fastened and positioned through the thrust bearing fixing ring. Through the technical scheme, the relative position between the axial direction of the rotating cavity part and the outer conductor fixing part is unchanged, and the rotating cavity part can rotate 360 degrees around the shaft relative to the outer conductor fixing part.
As a further explanation of the rotary joint for radio frequency transmission according to the present utility model, preferably, the outer conductor rotating part includes an outer conductor rotating part fixing plate and a coaxial feeder outer conductor rotating section; the outer conductor rotating part fixing plate and the coaxial feeder outer conductor rotating section are fixed through alignment and welding, and the outer conductor rotating part fixing plate is fixed on the rotating cavity part through bolts. Through the technical scheme, the outer conductor rotating part can rotate 360 degrees relative to the outer conductor fixing part along with the cavity part.
As a further explanation of the rotary joint for radio frequency transmission according to the present utility model, preferably, the inner conductor fixing portion includes a flange ferrule, an inner conductor fixing section medium support, an inner conductor contact spring and an inner conductor spring fixing ring; the flange insert core is fixed at the top end of the outer conductor fixing part, the inner conductor fixing section is fixed on the flange insert core, the fixing section medium support is clamped on the inner conductor fixing section, and the inner conductor contact reed is fixed on the inner conductor fixing section through the inner conductor reed fixing ring by bolts. Through the technical scheme, the inner conductor fixing part can be fixed with the outer conductor fixing part by the flange insert core in the axial direction, and can be supported by the medium of the inner conductor fixing section in the radial direction to be fixed with the outer conductor fixing part.
As a further illustration of the rotary joint for radio frequency transmission according to the present utility model, preferably, the inner conductor rotating part includes a flange insert and an inner conductor rotating section; the flange insert core is fixed on the outer conductor rotating part, the inner conductor rotating section is fixed on the flange insert core, and the inner conductor rotating section and the inner conductor fixing section are connected in a sliding mode through the inner conductor contact reed. Through the technical scheme, the inner conductor rotating part can be axially fixed with the outer conductor rotating part through the flange inserting core, and the inner conductor rotating section and the inner conductor fixing section can achieve good contact performance through the inner conductor contact reed.
As a further explanation of the rotary joint for radio frequency transmission according to the present utility model, preferably, the fixing base is provided with a mounting boss for fixing the mounting position, and the fixing base is provided with a mounting hole for fixing the fixing base to the radio frequency transmission system fixing portion by a bolt. Through the technical scheme, the rotary joint can be more accurately installed at a required position according to the boss position in engineering application.
As a further explanation of the rotary joint for radio frequency transmission according to the present utility model, it is preferable that the outer conductor fixing portion is made of stainless steel material and the arcuate reed is made of beryllium bronze material. Through the technical scheme, the strength of the fixed part of the outer conductor of the rotary joint and the contact property of the fixed section and the movable section of the outer conductor can be improved.
As a further explanation of the rotary joint for radio frequency transmission according to the present utility model, it is preferable that the rotary chamber of the rotary chamber portion, the shaft sleeve, and the thrust bearing fixing ring are made of stainless steel materials. Through above-mentioned technical scheme, can realize that rotatory chamber is around outer conductor fixed part steady motion, structural strength is big, and environmental suitability is strong.
The utility model has the beneficial effects that:
1) According to the utility model, the outer conductor rotating part is fixed on the rotating cavity part through the bolt, so that the outer conductor rotating part can stably rotate around the outer conductor fixing part along with the rotating cavity part, and the outer conductor rotating part is in sliding connection with the outer conductor fixing part through the arc-shaped reed of the outer conductor fixing part, and the two parts of the outer conductor are always in an excellent contact state in the rotating process; the inner conductor fixing part is fixed on the outer conductor fixing part through the flange inserting core of the inner conductor fixing part, so that the fixing between the inner conductor and the outer conductor of the fixing part can be realized, the section is in a stable state in the rotating process, the inner conductor rotating part is fixed on the outer conductor rotating part through the flange inserting core of the inner conductor rotating part, the relative rotating movement of the inner conductor fixing section and the outer conductor fixing section of the rotating joint is realized, and the inner conductor and the outer conductor are always in an excellent contact state in the moving process.
2) The rotary joint is used for a change-over switch of a medium wave network, the hard connection mode of feed pipe connection is changed into the spring leaf elastic connection mode, the relative rotation of the fixed part and the rotary part is realized under the condition of keeping excellent connection, and the characteristics of simple and practical design structure, small insertion loss, stable rotation and strong environmental applicability are realized on the premise of ensuring stable connection.
Drawings
Fig. 1 is a schematic structural view of a rotary joint for rf transmission according to the present utility model.
Fig. 2 is a schematic structural view of an outer conductor fixing portion of the present utility model.
Fig. 3 is a schematic view of the structure of the rotary chamber portion of the present utility model.
Fig. 4 is a schematic structural view of the rotating portion of the outer conductor of the present utility model.
Fig. 5 is a schematic structural view of an inner conductor fixing portion of the present utility model.
Fig. 6 is a schematic structural view of the rotating portion of the inner conductor of the present utility model.
Detailed Description
For a further understanding of the structure, features, and other objects of the utility model, reference should now be made in detail to the accompanying drawings of the preferred embodiments of the utility model, which are illustrated in the accompanying drawings and are for purposes of illustrating the concepts of the utility model and not for limiting the utility model.
As shown in fig. 1, fig. 1 is a schematic structural view of a rotary joint for radio frequency transmission according to the present utility model; a rotary joint for radio frequency transmission includes an outer conductor fixing portion 200, a rotary cavity portion 300, an outer conductor rotary portion 400, an inner conductor fixing portion 500, and an inner conductor rotary portion 600. The outer conductor fixing portion 200 is fixedly connected to the rotary antenna mount; the rotary cavity part 300 is sleeved on the outer conductor fixing part 200, and the rotary cavity part 300 is axially fastened to the outer conductor fixing part 200 through a thrust bearing fixing ring of the rotary cavity part 300; the outer conductor rotating part 400 is fixedly connected to the rotating cavity part 300 by bolts, and the outer conductor rotating part 400 is slidably connected with the outer conductor fixing part 200 by arcuate reeds of the outer conductor fixing part 200; the outer conductor rotating part 400 is fixed to the rotating cavity part 300 by bolts so that the outer conductor rotating part 400 can rotate 360 degrees around the outer conductor fixing part 200 along with the rotating cavity part 300; the inner conductor fixing part 500 is fixed to the outer conductor fixing part 200 through a flange insert of the inner conductor fixing part 500, the inner conductor rotating part 600 is fixed to the outer conductor rotating part 400 through a flange insert of the inner conductor rotating part 600, and the inner conductor rotating part 600 is slidably connected with the inner conductor fixing part 500 through an inner conductor contact reed of the inner conductor fixing part 500, so that the inner conductor rotating part 600 can rotate 360 ° around the inner conductor fixing part 500 along with the outer conductor rotating part 400 and the rotating cavity part 300. The structure can realize that the inner conductor fixing part, the outer conductor fixing part and the rotating part of the rotating joint have 360-degree relative movement, and ensure that the inner conductor and the outer conductor have good electric conduction performance.
As shown in fig. 2, fig. 2 is a schematic structural view of the outer conductor fixing portion of the present utility model. The outer conductor fixing portion 200 includes a fixing base 201, a coaxial feeder outer conductor fixing section 202, an arcuate reed 203, and a reed fixing plate 204. The coaxial feeder outer conductor fixing section 202 is fixed to the fixing base 201 by bolts. The fixing seat 201 is provided with a mounting boss to fix the mounting position, the fixing seat 201 is provided with a mounting hole, and the mounting hole is fixed on the fixing portion of the radio frequency emission system through a bolt. The lower end of the coaxial feeder outer conductor fixing section 202 is provided with a reed mounting groove and a reed fixing threaded hole, the arcuate reed 203 is placed in the reed mounting groove, the reed fixing plate 204 is fixed to the bottom end of the coaxial feeder outer conductor fixing section 202 by bolts to compress the arcuate reed 203, and the reed fixing plate 204 is used for fixing the arcuate reed 203. The structural characteristics of the outer conductor fixing part can realize the split processing under the condition of stable structural performance so as to ensure the precision requirement of each component. The reed can be tightly connected with the coaxial feeder outer conductor, and the conductivity is greatly enhanced. In addition, the outer conductor fixing part 200 is made of stainless steel, the arc-shaped reed 203 is made of beryllium bronze, and the strength of the outer conductor fixing part of the rotary joint and the contact property between the outer conductor fixing section and the movable section can be improved.
As shown in fig. 3, fig. 3 is a schematic structural view of a rotary chamber portion of the present utility model. The rotating chamber portion 300 includes a rotating chamber 301, a bearing fixing plate 302, a deep groove ball bearing 303, a sleeve 304, a thrust bearing 305, and a thrust bearing fixing ring 306. The rotating cavity 301 and the bearing fixing plate 302 are fastened by bolts, the deep groove ball bearing 303 is arranged between the rotating cavity 301 and the bearing fixing plate 302 for fixing, the rotating cavity 300 and the outer conductor fixing portion 200 are axially fixed by the thrust bearing fixing ring 306, and the rotating cavity 300 and the outer conductor fixing portion 200 can be axially fixed and simultaneously freely rotated around the axis by sleeving the rotating cavity 301 and the outer conductor fixing portion 200 into the coaxial feeder outer conductor fixing section 202 of the outer conductor fixing portion 200, and then sequentially installing the shaft sleeve 304, the thrust bearing 305 and the thrust bearing fixing ring 306, wherein the thrust bearing fixing ring 306 is fixed on the coaxial feeder outer conductor fixing section 202 of the outer conductor fixing portion 200 by bolts. The above structural feature of the rotating cavity portion can realize that the relative position of the rotating cavity portion and the outer conductor fixing portion is unchanged in the axial direction, and the rotating cavity portion and the outer conductor fixing portion can rotate around the shaft by 360 degrees. In addition, the rotating cavity 301, the shaft sleeve 304 and the thrust bearing fixing ring 306 of the rotating cavity body part 300 are made of stainless steel materials, so that the rotating cavity can stably move around the outer conductor fixing part, the structural strength is high, and the environmental adaptability is strong.
As shown in fig. 4, fig. 4 is a schematic structural view of the rotating portion of the outer conductor of the present utility model. The outer conductor rotating part 400 includes an outer conductor rotating part fixing plate 401 and a coaxial feeder outer conductor rotating section 402. The outer conductor rotating part fixing plate 401 and the coaxial feeder outer conductor rotating section 402 are fixed by alignment and welding, and the outer conductor rotating part fixing plate 401 is fixed to the rotating cavity part 300 by bolts. The above structural feature of the outer conductor rotating portion enables the outer conductor rotating portion to be rotated 360 ° with respect to the outer conductor fixing portion with the cavity portion. The coaxial feeder outer conductor rotating section 402 is slidably connected to the coaxial feeder outer conductor fixing section 202 by means of the arcuate reed 203 such that the outer conductor rotating portion 400 is in contact with the outer conductor fixing portion 200, both portions of the outer conductor being in good contact all the time during rotation.
As shown in fig. 5, fig. 5 is a schematic structural view of the inner conductor fixing portion of the present utility model. The inner conductor fixing portion 500 includes a flange ferrule 501, an inner conductor fixing section 502, an inner conductor fixing section dielectric support 503, an inner conductor contact spring 504, and an inner conductor spring fixing ring 505. The flange insert 501 is fixed on the top end of the outer conductor fixing portion 200, the inner conductor fixing section 502 is fixed on the flange insert 501, the fixing section medium support 503 is clamped on the inner conductor fixing section 502, and the inner conductor contact reed 504 is fixed on the inner conductor fixing section 502 through the inner conductor reed fixing ring 505 by bolts. The structural characteristics of the inner conductor fixing part can realize that the inner conductor fixing part can be fixed with the outer conductor fixing part by the flange insert core in the axial direction and can be supported by the medium of the inner conductor fixing section in the radial direction for fixing with the outer conductor fixing part.
As shown in fig. 6, fig. 6 is a schematic structural view of the rotating portion of the inner conductor of the present utility model. The inner conductor rotating portion 600 includes a flange ferrule 601 and an inner conductor rotating section 602. The flange insert 601 is fixed to the outer conductor rotating portion 400, and the inner conductor rotating section 602 is fixed to the flange insert 601. The structural characteristics of the inner conductor rotating part can realize that the inner conductor rotating part can be axially fixed by the flange insert core and the outer conductor rotating part, and the inner conductor rotating section and the inner conductor fixing section can achieve good contact performance through the inner conductor contact reed. The inner conductor rotating section 602 is slidably coupled to the inner conductor fixing section 502 by the inner conductor contact spring 504, thus forming a sliding connection of the inner conductor fixing portion 500 to the inner conductor rotating portion 600, and the inner conductor rotating portion 600 is rotatable 360 ° around the inner conductor fixing portion 500 with the outer conductor rotating portion 400 and the rotating chamber portion 300.
Referring to fig. 1, 2, 3, 4, 5, and 6, according to the rotary joint for radio frequency transmission of the present utility model, an outer conductor rotating part 400 is fixed to a rotating cavity part 300 by a bolt, so that the outer conductor rotating part 400 rotates smoothly around an outer conductor fixing part 200 along with the rotating cavity part 300, and the outer conductor rotating part 400 is slidably connected with the outer conductor fixing part 200 by an arcuate reed of the outer conductor fixing part 200, and both parts of the outer conductor are always in an excellent contact state during rotation; the inner conductor fixing part 500 is fixed to the outer conductor fixing part 200 through a flange insert of the inner conductor fixing part 500, so that the fixing between the inner conductor and the outer conductor of the fixing part can be realized, the section is in a stable state in the rotating process, the inner conductor rotating part 600 is fixed to the outer conductor rotating part 400 through a flange insert of the inner conductor rotating part 600, the relative rotating movement of the inner conductor fixing section and the outer conductor fixing section of the rotary joint is realized, and the inner conductor and the outer conductor are always in an excellent contact state in the moving process. Therefore, the utility model converts the hard connection form of the feed pipe connection into the spring connection form, realizes the relative rotation of the fixed part and the rotating part under the condition of keeping excellent connection, and can realize the purposes of simple and practical design structure, small insertion loss, stable rotation and strong environmental applicability on the premise of stable connection.
It should be noted that the foregoing summary and the detailed description are intended to demonstrate practical applications of the technical solution provided by the present utility model, and should not be construed as limiting the scope of the present utility model. Various modifications, equivalent alterations, or improvements will occur to those skilled in the art, and are within the spirit and principles of the utility model. The scope of the utility model is defined by the appended claims.
Claims (10)
1. A rotary joint for radio frequency transmission, characterized in that the rotary joint comprises an outer conductor fixation part (200), a rotary cavity part (300), an outer conductor rotation part (400), an inner conductor fixation part (500), an inner conductor rotation part (600); wherein,
the outer conductor fixing part (200) is fixedly connected to the rotary antenna bracket;
the rotating cavity part (300) is sleeved on the outer conductor fixing part (200), and the rotating cavity part (300) is axially fastened on the outer conductor fixing part (200) through a thrust bearing fixing ring of the rotating cavity part (300);
the outer conductor rotating part (400) is fixedly connected to the rotating cavity part (300) through a bolt, the outer conductor rotating part (400) is in sliding connection with the outer conductor fixing part (200) through an arc-shaped reed of the outer conductor fixing part (200), and the outer conductor rotating part (400) is fixedly connected to the rotating cavity part (300) through the bolt, so that the outer conductor rotating part (400) can rotate 360 degrees around the outer conductor fixing part (200) along with the rotating cavity part (300);
the inner conductor fixing part (500) is fixed on the outer conductor fixing part (200) through a flange insert core of the inner conductor fixing part (500);
the inner conductor rotating part (600) is fixed on the outer conductor rotating part (400) through a flange inserting core of the inner conductor rotating part (600), and the inner conductor rotating part (600) is connected with the inner conductor fixing part (500) in a sliding way through an inner conductor contact reed of the inner conductor fixing part (500), so that the inner conductor rotating part (600) can rotate 360 degrees around the inner conductor fixing part (500) along with the outer conductor rotating part (400) and the rotating cavity part (300).
2. A rotary joint for radio frequency transmission according to claim 1, characterized in that the outer conductor fixation part (200) comprises a fixation seat (201), a coaxial feeder outer conductor fixation section (202), an arcuate reed (203) and a reed fixation plate (204); wherein, coaxial feeder outer conductor fixed section (202) is fixed in fixing base (201) through the bolt, and arcuate reed (203) is fixed in coaxial feeder outer conductor fixed section (202) through reed fixed plate (204).
3. A rotary joint for radio frequency transmission according to claim 2, characterized in that the lower end of the coaxial feeder outer conductor fixing section (202) is provided with a reed mounting groove and a reed fixing threaded hole, the arcuate reed (203) is placed in the reed mounting groove, and the reed fixing plate (204) is fixed to the bottom end of the coaxial feeder outer conductor fixing section (202) by a bolt to compress the arcuate reed (203).
4. A rotary joint for radio frequency transmissions as claimed in claim 1,
the rotary cavity part (300) comprises a rotary cavity (301), a bearing fixing plate (302), a deep groove ball bearing (303), a shaft sleeve (304), a thrust bearing (305) and a thrust bearing fixing ring (306); the rotary cavity (301) and the bearing fixing plate (302) are fastened through bolts, the deep groove ball bearing (303) is arranged between the rotary cavity (301) and the bearing fixing plate (302) to be fixed, the rotary cavity (301), the bearing fixing plate (302) and the deep groove ball bearing (303) are sleeved on the outer wall of the coaxial feeder line outer conductor fixing section (202) of the outer conductor fixing part (200) together, the shaft sleeve (304), the thrust bearing (305) and the thrust bearing fixing ring (306) are sleeved on the outer wall of the coaxial feeder line outer conductor fixing section (202) in sequence, and the thrust bearing fixing ring (306) is fixed on the coaxial feeder line outer conductor fixing section (202) of the outer conductor fixing part (200) through bolts, so that the rotary cavity part (300) and the outer conductor fixing part (200) are axially fastened and positioned through the thrust bearing fixing ring (306).
5. A rotary joint for radio frequency transmission according to claim 1, characterized in that the outer conductor rotating part (400) comprises an outer conductor rotating part fixing plate (401) and a coaxial feeder outer conductor rotating section (402); wherein the outer conductor rotating part fixing plate (401) and the coaxial feeder outer conductor rotating section (402) are fixed by alignment and welding, and the outer conductor rotating part fixing plate (401) is fixed to the rotating cavity part (300) by bolts.
6. The rotary joint for radio frequency transmission according to claim 1, wherein the inner conductor fixing portion (500) comprises a flange ferrule (501), an inner conductor fixing section (502), an inner conductor fixing section dielectric support (503), an inner conductor contact spring (504) and an inner conductor spring fixing ring (505); the flange insert core (501) is fixed at the top end of the outer conductor fixing part (200), the inner conductor fixing section (502) is fixed on the flange insert core (501), the fixing section medium support (503) is clamped on the inner conductor fixing section (502), and the inner conductor contact reed (504) is fixed on the inner conductor fixing section (502) through the inner conductor reed fixing ring (505) by bolts.
7. The rotary joint for radio frequency transmission according to claim 1, wherein the inner conductor rotating part (600) comprises a flange insert (601) and an inner conductor rotating section (602); the flange insert core (601) is fixed on the outer conductor rotating part (400), the inner conductor rotating section (602) is fixed on the flange insert core (601), and the inner conductor rotating section (602) and the inner conductor fixing section (502) are connected in a sliding mode through the inner conductor contact reed (504).
8. A rotary joint for radio frequency transmission according to claim 2, characterized in that the fixing base (201) is provided with a mounting boss for fixing the mounting position, the fixing base (201) is provided with a mounting hole, and the fixing base is fixed to the radio frequency transmission system fixing part by a bolt.
9. A rotary joint for radio frequency transmission according to claim 2, characterized in that the outer conductor fixing portion (200) is made of stainless steel material and the arcuate reed (203) is made of beryllium bronze material.
10. The rotary joint for radio frequency transmission according to claim 5, wherein the rotary cavity (301), the bushing (304), and the thrust bearing retaining ring (306) of the rotary cavity portion (300) are made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320098432.5U CN219979784U (en) | 2023-02-01 | 2023-02-01 | Rotary joint for radio frequency transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320098432.5U CN219979784U (en) | 2023-02-01 | 2023-02-01 | Rotary joint for radio frequency transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219979784U true CN219979784U (en) | 2023-11-07 |
Family
ID=88584311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320098432.5U Active CN219979784U (en) | 2023-02-01 | 2023-02-01 | Rotary joint for radio frequency transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219979784U (en) |
-
2023
- 2023-02-01 CN CN202320098432.5U patent/CN219979784U/en active Active
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