CN216905420U - Simple AFC tuning mechanism of linear accelerator - Google Patents
Simple AFC tuning mechanism of linear accelerator Download PDFInfo
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- CN216905420U CN216905420U CN202220227257.0U CN202220227257U CN216905420U CN 216905420 U CN216905420 U CN 216905420U CN 202220227257 U CN202220227257 U CN 202220227257U CN 216905420 U CN216905420 U CN 216905420U
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- servo motor
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Abstract
The application provides a simple and easy linear accelerator AFC tuning mechanism, includes: the magnetron comprises a magnetron body, wherein a large gear is fixedly arranged on a magnetron knob of the magnetron body and is in transmission connection with a tuning turntable through a limiting piece; the servo motor is arranged on the magnetron through the supporting plate, the output shaft of the servo motor is coaxially provided with a connecting shaft, a first nut, an adjusting piece, a tuning turntable and a second nut are sequentially and movably sleeved on the connecting shaft along the direction far away from the servo motor, and the first nut or the second nut is rotated on the connecting shaft so that the adjusting piece can stretch along the axis direction of the connecting shaft. Through servo motor drive connecting axle, rethread friction torque drives magnetron knob and potentiometer, realizes driving the rotatory purpose of magnetron knob by servo motor to through adjustment spring length, the effective range of control friction torque even error in operation or servo motor long-time operation appear, also can not damage the magnetron.
Description
Technical Field
The utility model relates to the technical field of AFC tuning of linear accelerators, in particular to a simple AFC tuning mechanism of a linear accelerator.
Background
The conventional AFC tuning mechanism of the linear accelerator needs a braking protection device, and the output torque of the motor is guaranteed not to exceed the rotation limit position braking of a knob of a magnetron through limit braking.
However, when AFC tuning is performed many times or when an operation is mistakenly performed, the rotation stroke of the servo motor reaches or exceeds the rotation limit position of the magnetron, and the internal mechanism of the magnetron may be damaged.
SUMMERY OF THE UTILITY MODEL
In view of this, the main purpose of the present invention is to solve the technical problem of magnetron damage caused by misoperation or long-time operation of the servo motor.
The utility model provides a simple AFC tuning mechanism of a linear accelerator, which comprises: the magnetron comprises a magnetron body, wherein a large gear is fixedly arranged on a magnetron knob of the magnetron body and is in transmission connection with a tuning turntable through a limiting piece; the output shaft of the servo motor is coaxially provided with a connecting shaft, a first nut, an adjusting piece, the tuning turntable and a second nut are sequentially and movably sleeved on the connecting shaft along the direction far away from the servo motor, and the first nut or the second nut is rotated on the connecting shaft so that the adjusting piece can stretch along the axis direction of the connecting shaft; the tuning turntable comprises an adjusting piece, a first spring, a second spring, a transmission column and a tuning turntable, wherein the transmission column is movably arranged in an accommodating groove of the adjusting piece, one end of the transmission column is connected with the first spring fixed in the accommodating groove, and the other end of the transmission column is provided with a first state extending out of the accommodating groove and inserted into a clamping groove of the tuning turntable and a second state retracting to the accommodating groove of the adjusting piece; when the other end of the transmission column is in a second state of retracting to the accommodating groove of the adjusting piece, the magnetic block arranged in the accommodating groove is in contact with the transmission column, so that the transmission column is fixed in the accommodating groove.
In some embodiments of the utility model, the adjustment member comprises a large washer and a second spring; the second spring is sleeved on the connecting shaft, and the two large gaskets are respectively fixedly connected with two ends of the second spring.
In some embodiments of the utility model, the tuning dial is movably mounted on the connecting shaft by a bearing.
In some embodiments of the present invention, one end of the limiting member is clamped to the large gear, and the other end of the limiting member is clamped to the tuning turntable, so that the tuning turntable and the large gear rotate synchronously.
In some embodiments of the utility model, the friction torque between the drive post and the tuning dial is less than the detent torque when the magnetron knob is in the extreme position.
In some embodiments of the utility model, the friction torque between the adjustment member and the tuning dial is less than the detent torque when the magnetron knob is in the extreme position.
According to the simple AFC tuning mechanism of the linear accelerator, the connecting shaft is driven by the servo motor, the magnetron knob and the potentiometer are driven by friction torque, the purpose that the magnetron knob is driven by the servo motor to rotate is achieved, the effective range of the friction torque is controlled by adjusting the length of the spring, and the magnetron cannot be damaged even if misoperation occurs or the servo motor runs for a long time.
Drawings
Fig. 1 is a schematic structural diagram of a simple AFC tuning mechanism of a linear accelerator according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a simple AFC tuning mechanism of a linear accelerator according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of a large spacer of a simple AFC tuning mechanism of a linear accelerator according to an embodiment of the present invention.
Wherein the figures include the following reference numerals:
1. a magnetron body; 2. a support plate; 3. a potentiometer; 4. a potentiometer fixing plate; 5. a servo motor mounting plate; 6. a servo motor; 7. a pinion gear; 8. a bull gear; 9. a limiting member; 10. a tuning turntable; 1001. a card slot; 11. a large gasket; 1101. a drive post; 1102. a first spring; 1103. a magnetic block; 12. a second spring; 13. a nut; 14. and (7) connecting the shafts.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the utility model. It should be noted that, for convenience of description, only the relevant portions of the related inventions are shown in the drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1-3, a simple AFC tuning mechanism for a linear accelerator according to the present application is shown, comprising: the magnetron comprises a magnetron body 1, wherein a large gear 8 is fixedly arranged on a magnetron knob of the magnetron body 1, and the large gear 8 is in transmission connection with a tuning turntable 10 through a limiting part 9; the magnetron comprises a magnetron body 1, a servo motor 6 arranged on the magnetron body 1 through a support plate 2, a connecting shaft 14 is coaxially arranged on an output shaft of the servo motor 6, a first nut 13, an adjusting piece, a tuning turntable 10 and a second nut 14 are sequentially and movably sleeved on the connecting shaft 14 along the direction far away from the servo motor 6, and the first nut 13 or the second nut 14 is rotated on the connecting shaft 14 so that the adjusting piece can extend and retract along the axial direction of the connecting shaft 14; a transmission column 1101 is movably arranged in the accommodating groove of the adjusting piece, one end of the transmission column 1101 is connected with a first spring 1102 fixed in the accommodating groove, and the other end of the transmission column 1101 has a first state of extending out of the accommodating groove and being inserted into the clamping groove 1001 of the tuning turntable 10 and a second state of retracting into the accommodating groove of the adjusting piece; when the other end of the transmission column 1101 is in a second state of retracting to the accommodating groove of the adjusting part, the magnetic block 1103 arranged in the accommodating groove contacts with the transmission column 1101, so that the transmission column 1101 is fixed in the accommodating groove.
By applying the technical scheme of the embodiment, the large gear 8 is fixedly connected with a magnetron knob of the magnetron body 1, the servo motor 6 is installed on the servo motor installation plate 5, the potentiometer 3 is installed on the potentiometer fixing plate 4, the potentiometer fixing plate 4 is fixed on the support plate 2, the magnetron body 1 and the servo motor installation plate 5 are fixedly connected through the support plate 2, the servo motor 6 is connected with the connecting shaft 14, the servo motor 6 and the connecting shaft 14 synchronously rotate, the first nut 13, the adjusting piece, the tuning turntable 10 and the second nut 15 are sequentially installed on the connecting shaft 14, the length of the adjusting piece is adjusted through the tightness of the first nut 13 or the second nut 15, the potentiometer 3 is installed on the potentiometer fixing plate 4, the small gear 7 is installed on the potentiometer 3, and the small gear 7 and the potentiometer 3 can synchronously rotate and are meshed with the large gear 8.
Specifically, the servo motor 6 rotates to drive the driving connecting shaft 14 to rotate, the tightness of the first nut 13 or the second nut 15 is adjusted, the adjusting piece is enabled to be under appropriate pressure, the adjusting piece is driven to be in contact connection with the tuning turntable 10, the tuning turntable 10 is driven to rotate through friction, the limiting piece 9 and the large gear 8 are further driven to rotate, the magnetron knob is driven to rotate synchronously, meanwhile, the large gear 8 is meshed with the small gear 7, the small gear 7 is driven to rotate, and the small gear 7 drives the potentiometer 3 to rotate.
It should be noted that, the adjusting nut 13 or the second nut 15 makes the friction torque between the adjusting member and the tuning turntable 10 be 0.07N · m-0.5N · m, which can ensure to drive the rotation of the magnetron knob, when the magnetron knob reaches the limit position, the magnetron knob will not be damaged because the torque is less than 0.5N · m, and at this time, the motor drives the connecting shaft to idle, thus effectively protecting the magnetron.
In fig. 3, after the tightness of the first nut 13 or the second nut 15 is adjusted to make the adjusting member receive a suitable pressure to drive the adjusting member to contact and connect with the tuning dial 10, the transmission column 1101 is in a first state of extending out of the receiving slot and being inserted into the slot 1001 of the tuning dial 10, so as to increase the friction torque between the transmission column 1101 and the tuning dial 10, thereby reducing the occurrence of the phenomenon that the adjusting member and the tuning dial 10 are relatively displaced when the magnetron knob is rotated, which causes the magnetron knob to be screwed in place.
When the magnetron knob is at the limit position, because the friction torque between the transmission column 1101 and the tuning turntable 10 is smaller than the braking torque when the magnetron knob is at the limit position, the transmission column 1101 retracts to the second state in the accommodating groove of the adjusting member, at this time, the magnetic block 1103 in the accommodating groove contacts with the transmission column 1101, so that the transmission column 1101 is fixed in the accommodating groove, and when the servo motor 6 drives the adjusting member to idle, the transmission column 1101 cannot switch between the first state and the second state, so that the idle effect is effectively improved.
With respect to the specific structure of the adjusting member, further referring to fig. 2, the adjusting member includes a large washer 11 and a second spring 12; the second spring 12 is sleeved on the connecting shaft 14, and the two large gaskets 11 are respectively fixedly connected with two ends of the second spring 12.
By adopting the structure, the nut 13 or the second nut 15 is adjusted, so that the second spring 12 is subjected to appropriate pressure contraction, and the large gasket 11 is driven to be in contact connection with the tuning turntable 10.
Specifically, the tuning dial 10 is movably mounted on the connecting shaft 14 through a bearing.
Specifically, one end of the limiting part 9 is clamped with the big fluted disc 8, and the other end of the limiting part 9 is clamped with the tuning turntable 10, so that the tuning turntable 10 and the big fluted disc 8 synchronously rotate.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the utility model.
Claims (7)
1. A simple linear accelerator AFC tuning mechanism, comprising:
the magnetron comprises a magnetron body (1), wherein a large gear (8) is fixedly mounted on a magnetron knob of the magnetron body (1), and the large gear (8) is in transmission connection with a tuning turntable (10) through a limiting piece (9); and
the magnetron comprises a servo motor (6) which is arranged on a magnetron body (1) through a supporting plate (2), wherein a connecting shaft (14) is coaxially arranged on an output shaft of the servo motor (6), a first nut (13), an adjusting piece, a tuning turntable (10) and a second nut (15) are sequentially and movably sleeved on the connecting shaft (14) along the direction far away from the servo motor (6), and the first nut (13) or the second nut (15) is rotationally moved on the connecting shaft (14) so that the adjusting piece can stretch along the axis direction of the connecting shaft (14);
a transmission column (1101) is movably arranged in the accommodating groove of the adjusting piece, one end of the transmission column (1101) is connected with a first spring (1102) fixed in the accommodating groove, and the other end of the transmission column (1101) is provided with a first state of extending out of the accommodating groove and being inserted into a clamping groove (1001) of the tuning turntable (10) and a second state of retracting into the accommodating groove of the adjusting piece;
when the other end of the transmission column (1101) is in a second state of retracting to the accommodating groove of the adjusting piece, a magnetic block (1103) arranged in the accommodating groove is in contact with the transmission column (1101), so that the transmission column (1101) is fixed in the accommodating groove.
2. A simple linear accelerator AFC tuning mechanism according to claim 1, characterized by the fact that the adjusting member comprises a large spacer (11) and a second spring (12);
the second spring (12) is sleeved on the connecting shaft (14), and the two large gaskets (11) are respectively fixedly connected with two ends of the second spring (12).
3. The simple AFC tuning mechanism of linear accelerator according to claim 1, characterized in that the tuning turntable (10) is movably mounted on the connecting shaft (14) by means of a bearing.
4. The AFC tuning mechanism of the simple linear accelerator as claimed in claim 1, wherein one end of the limiting member (9) is connected to the gear wheel (8) in a snap-fit manner, and the other end of the limiting member (9) is connected to the tuning turntable (10) in a snap-fit manner, so that the tuning turntable (10) and the gear wheel (8) rotate synchronously.
5. A simple linear accelerator AFC tuning mechanism according to claim 1, characterized by the friction torque between the transmission column (1101) and the tuning turntable (10) is smaller than the detent torque when the magnetron knob is in the extreme position.
6. A simple linear accelerator AFC tuning mechanism according to claim 1, characterized by the fact that the friction torque between the adjusting member and the tuning dial (10) is smaller than the braking torque when the magnetron knob is in extreme position.
7. The simple AFC tuning mechanism of linear accelerator as claimed in claim 1, wherein the cross section of the end of the transmission column (1101) extending out of the receiving slot is an arc-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220227257.0U CN216905420U (en) | 2022-01-27 | 2022-01-27 | Simple AFC tuning mechanism of linear accelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220227257.0U CN216905420U (en) | 2022-01-27 | 2022-01-27 | Simple AFC tuning mechanism of linear accelerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216905420U true CN216905420U (en) | 2022-07-05 |
Family
ID=82183015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220227257.0U Active CN216905420U (en) | 2022-01-27 | 2022-01-27 | Simple AFC tuning mechanism of linear accelerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216905420U (en) |
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2022
- 2022-01-27 CN CN202220227257.0U patent/CN216905420U/en active Active
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