CN112349565B - Magnetron tuning mechanism and magnetron assembly - Google Patents
Magnetron tuning mechanism and magnetron assembly Download PDFInfo
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- CN112349565B CN112349565B CN201910738428.9A CN201910738428A CN112349565B CN 112349565 B CN112349565 B CN 112349565B CN 201910738428 A CN201910738428 A CN 201910738428A CN 112349565 B CN112349565 B CN 112349565B
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- magnetron
- side plate
- tuning
- tuning mechanism
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
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Abstract
The present disclosure provides a magnetron tuning mechanism comprising: the magnetron comprises a first mounting rack and a second mounting rack, wherein the first mounting rack and the second mounting rack are respectively mounted on two opposite sides of the magnetron; the driving mechanism is arranged on the first mounting frame and connected with the first end of the tuning rotating shaft of the magnetron so as to drive the tuning rotating shaft to rotate; and the indicating mechanism is arranged on the second mounting frame and is connected with a second end, opposite to the first end, of the tuning rotating shaft so as to indicate the position of the tuning rotating shaft. The magnetron tuning mechanism is small in required space, can accurately adjust the frequency of the magnetron, and meets the requirement of microwave tuning.
Description
Technical Field
The present disclosure relates to the field of microwave tuning technologies, and more particularly, to a magnetron tuning mechanism and a magnetron assembly including the same.
Background
In a microwave transmission system, microwave tuning is a key step of stable operation of the system, and currently, a common magnetron tuning mechanism is generally integrated, so that a large installation space is required. For some band magnetrons, the space occupied by the magnetron assembly is large due to the large size of the magnetron itself, combined with the integrated magnetron tuning mechanism, which is typically mounted on one side of the magnetron.
Disclosure of Invention
An object of the present invention is to solve at least one of the above problems and disadvantages in the prior art.
According to an embodiment of one aspect of the present disclosure, there is provided a magnetron tuning mechanism, comprising: the magnetron comprises a first mounting rack and a second mounting rack, wherein the first mounting rack and the second mounting rack are respectively mounted on two opposite sides of the magnetron; the driving mechanism is arranged on the first mounting frame and connected with the first end of the tuning rotating shaft of the magnetron so as to drive the tuning rotating shaft to rotate; and the indicating mechanism is arranged on the second mounting frame and is connected with a second end, opposite to the first end, of the tuning rotating shaft so as to indicate the position of the tuning rotating shaft.
In some embodiments, the magnetron tuning mechanism further comprises a limiting mechanism mounted on the second mounting bracket for limiting the range of rotation of the tuning shaft.
In some embodiments, the magnetron tuning mechanism further comprises a torque limiter, the output shaft of the drive mechanism being connected to the first end of the tuning spindle through the torque limiter.
In some embodiments, the first mount includes a first side plate connected with the drive mechanism, a second side plate connected with the magnetron, and a first base connected between the first side plate and the second side plate, the torque limiter disposed between the first side plate and the second side plate.
In some embodiments, the first side plate is provided with a first through hole for passing through an output shaft of the driving mechanism.
In some embodiments, a second through hole is provided on the second side plate for the first end of the tuning spindle to pass through.
In some embodiments, the torque limiter is sleeved with an elastic bellows on the outer side.
In some embodiments, the torque limiter is a ball torque limiter.
In some embodiments, the first mount further comprises a stiffener plate connecting the first side plate and the second side plate, the stiffener plate extending perpendicular to the first side plate.
In some embodiments, the first side plate is provided with at least one first connection aperture for connection with the drive mechanism.
In some embodiments, the second side plate is provided with at least one second connection hole connected with the magnetron.
In some embodiments, the indication mechanism is a potentiometer mounted on the second mounting bracket, and the potentiometer is connected to the second end of the tuning spindle through a coupling.
In some embodiments, the limit mechanism includes a first micro switch and a second micro switch mounted on the second mounting frame, a trigger portion is provided on the coupler, so that when the coupler rotates to a first limit position, the trigger portion triggers the first micro switch to control the driving mechanism to stop, and when the coupler rotates to a second limit position, the trigger portion triggers the second micro switch to control the driving mechanism to stop.
In some embodiments, the second mounting bracket includes a third side plate, a fourth side plate, and a second base connected between the third side plate and the fourth side plate, the third side plate is connected to the magnetron, a mounting hole for mounting the potentiometer is provided in the fourth side plate, the first and second micro switches are provided on a side of the fourth side plate facing the third side plate, and the trigger portion protrudes from the coupling in an axial direction.
In some embodiments, a third through hole for the coupler to pass through is formed in the third side plate.
In some embodiments, the third side plate is provided with at least one third connection hole connected with the magnetron.
According to an embodiment of another aspect of the present disclosure, there is provided a magnetron including a magnetron tuning mechanism as described above.
According to the magnetron tuning mechanism in the above embodiments of the present invention, a split coupling structure is adopted, wherein the first end of the tuning rotating shaft is driven by the driving mechanism to rotate, and the absolute position of the tuning rotating shaft is identified by the indicating mechanism connected to the second end of the tuning rotating shaft, so as to tune the slave magnetron.
Drawings
FIG. 1 shows an exploded schematic view of a magnetron including a magnetron tuning mechanism according to an example embodiment of the present disclosure;
FIG. 2 shows a schematic structural view of the magnetron shown in FIG. 1;
FIG. 3 is a schematic diagram of a first mounting bracket of the magnetron tuning mechanism of FIG. 1 and a drive mechanism and torque limiter mounted on the first mounting bracket;
fig. 4 is a schematic structural view of a second mounting bracket of the magnetron tuning mechanism shown in fig. 1, and a limiting mechanism and an indicating mechanism mounted on the second mounting bracket.
In the figure, 1: a drive mechanism; 2: a torque limiter; 201: a bellows; 3: a first mounting bracket; 301: a first side plate; 302: a second side plate; 303: a first base; 304: an interface mounting section; 305: a reinforcing plate; 306: a first through hole; 307: a second through hole; 308: a first connection hole; 309: a second connection hole; 310: a power supply interface; 4: tuning the rotating shaft; 401: a first end; 402: a second end; 5: a magnetron; 6: a second mounting bracket; 601: a third side plate; 602: a fourth side plate; 603: a second base; 604: a third through hole; 605: mounting holes; 606: a third connection hole; 7: a coupling; 701: a trigger section; 8: a limiting mechanism; 801: a first microswitch; 802: a second microswitch; 9: an indication mechanism.
Detailed Description
While the present invention will be fully described with reference to the accompanying drawings, which contain preferred embodiments of the invention, it is to be understood that, prior to the description herein, one of ordinary skill in the art can modify the invention described herein while obtaining the technical effects of the invention. Therefore, it should be understood that the foregoing description is a broad disclosure of those skilled in the art, and is not intended to limit the exemplary embodiments of the invention described herein.
Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.
The use of the terms first, second, etc. in this description is not intended to distinguish between different components, but rather to rank or indicate importance or primary-secondary relationship.
According to the general inventive concept of the present disclosure, there is provided a magnetron tuning mechanism including: the magnetron comprises a first mounting rack and a second mounting rack, wherein the first mounting rack and the second mounting rack are respectively mounted on two opposite sides of the magnetron; the driving mechanism is arranged on the first mounting frame and connected with the first end of the tuning rotating shaft of the magnetron so as to drive the tuning rotating shaft to rotate; and the indicating mechanism is arranged on the second mounting frame and is connected with a second end, opposite to the first end, of the tuning rotating shaft so as to indicate the position of the tuning rotating shaft.
According to the present disclosure, the magnetron tuning mechanism adopts a split coupling type structure, wherein the first end of the tuning rotating shaft of the magnetron is driven by the driving mechanism to rotate, and the absolute position of the tuning rotating shaft is identified by the indicating mechanism connected with the second end of the tuning rotating shaft, so that the magnetron is tuned.
FIG. 1 shows an exploded schematic view of a magnetron including a magnetron tuning mechanism according to an example embodiment of the present disclosure; FIG. 2 shows a schematic structural view of the magnetron shown in FIG. 1; FIG. 3 is a schematic diagram of a first mounting bracket of the magnetron tuning mechanism of FIG. 1 and a drive mechanism and torque limiter mounted on the first mounting bracket; and figure 4 shows a schematic view of a second mounting bracket of the magnetron tuning mechanism shown in figure 1 and a spacing mechanism and an indication mechanism mounted on the second mounting bracket.
In an exemplary embodiment, as shown in fig. 1 and 2, the magnetron tuning mechanism comprises a first mounting frame 3 and a second mounting frame 6, the first mounting frame 3 and the second mounting frame 6 being mounted on opposite sides of the magnetron 5, respectively. A driving mechanism 1, specifically a driving motor, is mounted on the first mounting bracket 3 and connected to the first end 401 of the tuning rotating shaft 4 of the magnetron 5 to drive the tuning rotating shaft 4 to rotate. The driving mechanism 1 may be, for example, a dc speed reduction motor, or other driving mechanism suitable for driving the tuning shaft 4 to rotate. An indication mechanism 9 is mounted on the second mounting frame 6 and is connected to a second end 402 of the tuning shaft 4 opposite the first end 401 to indicate the position of the tuning shaft 4.
In an exemplary embodiment, as shown in fig. 1 and 2, the magnetron tuning mechanism further includes a limiting mechanism 8, and the limiting mechanism 8 is mounted on the second mounting frame 6 for limiting the rotation range of the tuning rotating shaft 4.
In an exemplary embodiment, as shown in fig. 1 and 2, the magnetron tuning mechanism further comprises a torque limiter 2, and the output shaft of the driving motor is connected to the first end 401 of the tuning rotating shaft 4 through the torque limiter 2.
In an exemplary embodiment, as shown in fig. 1 to 3, the first mounting bracket 3 includes a first side plate 301, a second side plate 302, and a first base 303 connected between the first side plate 301 and the second side plate 302, the first side plate 301 is connected to the driving motor and provided with a first through hole 306 through which an output shaft of the driving motor passes, the second side plate 302 is connected to the magnetron 5 and provided with a second through hole 307 through which the first end 401 of the tuning rotating shaft 4 passes, and the torque limiter 2 is disposed between the first side plate 301 and the second side plate 302.
In the exemplary embodiment shown in fig. 1 and 3, the first side plate 301 is provided with a first through hole 306 for passing the output shaft of the driving motor, and the second side plate 302 is provided with a second through hole 307 for passing the first end 401 of the tuning rotating shaft 4, however, it should be understood by those skilled in the art that in other embodiments of the present disclosure, the output shaft of the driving motor may extend above or laterally of the first side plate 301 for connecting with the torque limiter 2. The first end 401 of the tuning shaft 4 may also extend above or laterally of the second side plate 302, for example, to connect with the torque limiter 2. in an exemplary embodiment, as shown in fig. 1-3, the outer side of the torque limiter 2 is sleeved with an elastic bellows 201, so as to absorb the axial deviation generated during the installation process.
In an exemplary embodiment, as shown in fig. 1 to 3, the torque limiter 2 is a ball type torque limiter to disengage the driving motor from the tuning shaft 4 at the moment of overload of the driving motor, and the driving motor idles, thereby protecting the magnetron 5.
In an exemplary embodiment, as shown in fig. 1 to 3, the first mounting bracket 3 further includes an L-shaped interface mounting portion 304 protruding from the first side plate 301, and the interface mounting portion 304 is provided with a power supply interface 310. To supply power to the driving motor and the like through the power supply interface 310.
In an exemplary embodiment, as shown in fig. 1 to 3, the first mounting bracket 3 further includes a reinforcing plate 305 connecting the first side plate 301 and the second side plate 302, and the reinforcing plate 305 extends perpendicular to the first side plate 301. The first mounting bracket 3 is provided with a reinforcing plate 305 to ensure the structural stability of the first mounting bracket 3.
In an exemplary embodiment, as shown in fig. 1 to 3, the first side plate 301 is provided with at least one first coupling hole 308 to which the driving motor is coupled, so that the driving motor is mounted on the first mounting bracket 3 by passing a screw (e.g., M3X8 hexagon socket head stainless steel screw) or the like through the first coupling hole 308 and screwing the screw hole on the driving motor.
In an exemplary embodiment, as shown in fig. 1 to 3, the second side plate 302 is provided with at least one second coupling hole 309 coupled with the magnetron 5 to mount the first mounting bracket 3 and the driving motor, the torque limiter 2 mounted on the first mounting bracket 3 on the magnetron 5 by screwing a screw, etc. through the second coupling hole 309 and with a screw hole on the magnetron 5.
In an exemplary embodiment, as shown in fig. 1, 2 and 4, the indicating mechanism 9 is a potentiometer mounted on the second mounting frame 6 and connected to the second end 402 of the tuning shaft 4 by a coupling 7. Since the potentiometer rotates synchronously with the tuning rotating shaft 4 of the magnetron 5 through the coupler 7, the position of the tuning rotating shaft 4 indicated by the potentiometer is always consistent with the real position of the tuning rotating shaft 4. It should be noted that in other embodiments of the present disclosure, the indicating mechanism 9 may be an encoder.
In an exemplary embodiment, as shown in fig. 1, 2 and 4, the limit mechanism 8 comprises a first micro switch 801 and a second micro switch 802 mounted on the second mounting frame 6, and the coupler 7 is provided with a trigger 701, so that when the coupler 7 rotates to a first limit position, the trigger 701 triggers the first micro switch 801 to control the driving motor to stop, and when the coupler 7 rotates to a second limit position, the trigger 701 triggers the second micro switch 802 to control the driving motor to stop. In this embodiment, the angular difference between the first limit position and the second limit position is 270 °. It should be noted that in other embodiments of the present disclosure, the angular difference between the first limit position and the second limit position may have other values, such as 190 °, 300 °, etc.
In an exemplary embodiment, as shown in fig. 1, 2 and 4, the second mounting bracket 6 includes a third side plate 601, a fourth side plate 602 and a second base 603 connected between the third side plate 601 and the fourth side plate 602, the third side plate 601 is connected to the magnetron 5 and is provided with a third through hole 604 for passing the coupling 7, the fourth side plate 602 is provided with a second mounting hole 605 for mounting the potentiometer, the first micro switch 801 and the second micro switch 802 are provided on a side of the fourth side plate 602 facing the third side plate 601, and the trigger 701 protrudes from the coupling 7 in the axial direction.
In the exemplary embodiment shown in fig. 1, 2 and 4, the third side plate 601 is provided with a third through hole 604 for the coupler 7 to pass through, however, it should be noted that in other embodiments of the present disclosure, the coupler 7 may extend above or laterally of the third side plate 601 to connect with a potentiometer, for example. In an exemplary embodiment, as shown in fig. 1, 2 and 4, the third side plate 601 is provided with at least one third coupling hole 606 to be coupled with the magnetron 5, so that the second mounting bracket 6 is mounted on the magnetron 5 by screwing a screw or the like through the third coupling hole 606 and with a screw hole on the magnetron 5.
According to another aspect of the present disclosure, there is also provided a magnetron assembly comprising a magnetron 5 and a magnetron tuning mechanism as described above.
It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.
Having described preferred embodiments of the present invention in detail, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the scope and spirit of the appended claims, and the invention is not to be limited to the exemplary embodiments set forth herein.
Claims (17)
1. A magnetron tuning mechanism comprising:
the magnetron comprises a first mounting rack and a second mounting rack, wherein the first mounting rack and the second mounting rack are respectively mounted on two opposite sides of the magnetron;
the driving mechanism is arranged on the first mounting frame and connected with the first end of the tuning rotating shaft of the magnetron so as to drive the tuning rotating shaft to rotate; and
an indication mechanism mounted on the second mounting bracket and coupled to a second end of the tuning shaft opposite the first end to indicate a position of the tuning shaft.
2. The magnetron tuning mechanism of claim 1, further comprising a limiting mechanism mounted on the second mounting bracket for limiting a range of rotation of the tuning spindle.
3. The magnetron tuning mechanism of claim 2 further comprising a torque limiter through which the output shaft of the drive mechanism is connected to the first end of the tuning spindle.
4. The magnetron tuning mechanism of claim 3, wherein the first mount comprises a first side plate connected with the drive mechanism, a second side plate connected with the magnetron, and a first base connected between the first side plate and the second side plate, the torque limiter disposed between the first side plate and the second side plate.
5. The magnetron tuning mechanism of claim 4, wherein the first side plate is provided with a first through hole through which an output shaft of the drive mechanism passes.
6. The magnetron tuning mechanism of claim 4, wherein the second side plate is provided with a second through hole through which the first end of the tuning spindle passes.
7. The magnetron tuning mechanism of claim 4, wherein the torque limiter is sleeved outside with a resilient bellows.
8. The magnetron tuning mechanism of claim 4, wherein the torque limiter is a ball-on-ball torque limiter.
9. The magnetron tuning mechanism of claim 4, wherein the first mount further comprises a reinforcing plate connecting the first side plate and the second side plate, the reinforcing plate extending perpendicular to the first side plate.
10. The magnetron tuning mechanism of claim 4, wherein the first side plate is provided with at least one first connection aperture to connect with the drive mechanism.
11. The magnetron tuning mechanism of claim 4, wherein the second side plate is provided with at least one second connection hole to which the magnetron is connected.
12. The magnetron tuning mechanism of claim 2, wherein the indication mechanism is a potentiometer mounted on the second mounting bracket, the potentiometer being connected to the second end of the tuning spindle by a coupling.
13. The magnetron tuning mechanism of claim 12, wherein the limit mechanism comprises a first microswitch and a second microswitch mounted on the second mounting bracket, a trigger portion is provided on the coupler such that when the coupler rotates to a first limit position, the trigger portion triggers the first microswitch to control the drive mechanism to stop, and when the coupler rotates to a second limit position, the trigger portion triggers the second microswitch to control the drive mechanism to stop.
14. The magnetron tuning mechanism of claim 13, wherein the second mounting bracket comprises a third side plate, a fourth side plate, and a second base connected between the third side plate and the fourth side plate, the third side plate is connected to the magnetron, the fourth side plate is provided with a mounting hole for mounting the potentiometer, the first and second micro switches are provided on a side of the fourth side plate facing the third side plate, and the trigger portion protrudes from the coupling in an axial direction.
15. The magnetron tuning mechanism of claim 14, wherein the third side plate has a third through hole provided therein through which the coupler passes.
16. The magnetron tuning mechanism of claim 14, wherein the third side plate is provided with at least one third connection hole to which the magnetron is connected.
17. A magnetron assembly comprising a magnetron and a magnetron tuning mechanism as claimed in any one of claims 1 to 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910738428.9A CN112349565B (en) | 2019-08-09 | 2019-08-09 | Magnetron tuning mechanism and magnetron assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910738428.9A CN112349565B (en) | 2019-08-09 | 2019-08-09 | Magnetron tuning mechanism and magnetron assembly |
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| Publication Number | Publication Date |
|---|---|
| CN112349565A CN112349565A (en) | 2021-02-09 |
| CN112349565B true CN112349565B (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910738428.9A Active CN112349565B (en) | 2019-08-09 | 2019-08-09 | Magnetron tuning mechanism and magnetron assembly |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1292172A (en) * | 1970-07-01 | 1972-10-11 | English Electric Valve Co Ltd | Improvements in or relating to magnetrons |
| CN1377513A (en) * | 1999-10-02 | 2002-10-30 | 马科尼应用技术有限公司 | High frequency apparatus |
| CN2568446Y (en) * | 2002-09-08 | 2003-08-27 | 陈华 | Bike flywheel backshaft |
| CN106604517A (en) * | 2016-11-14 | 2017-04-26 | 上海联影医疗科技有限公司 | Power and frequency control assembly, and corresponding method of controlling magnetron |
| CN107306474A (en) * | 2016-04-18 | 2017-10-31 | 清华大学 | A kind of medical computerized linear accelerator |
-
2019
- 2019-08-09 CN CN201910738428.9A patent/CN112349565B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1292172A (en) * | 1970-07-01 | 1972-10-11 | English Electric Valve Co Ltd | Improvements in or relating to magnetrons |
| CN1377513A (en) * | 1999-10-02 | 2002-10-30 | 马科尼应用技术有限公司 | High frequency apparatus |
| CN2568446Y (en) * | 2002-09-08 | 2003-08-27 | 陈华 | Bike flywheel backshaft |
| CN107306474A (en) * | 2016-04-18 | 2017-10-31 | 清华大学 | A kind of medical computerized linear accelerator |
| CN106604517A (en) * | 2016-11-14 | 2017-04-26 | 上海联影医疗科技有限公司 | Power and frequency control assembly, and corresponding method of controlling magnetron |
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| CN112349565A (en) | 2021-02-09 |
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