CN200993994Y - Broadband coupled resonant cavity short-circuit board tuning device - Google Patents
Broadband coupled resonant cavity short-circuit board tuning device Download PDFInfo
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- CN200993994Y CN200993994Y CN 200620175174 CN200620175174U CN200993994Y CN 200993994 Y CN200993994 Y CN 200993994Y CN 200620175174 CN200620175174 CN 200620175174 CN 200620175174 U CN200620175174 U CN 200620175174U CN 200993994 Y CN200993994 Y CN 200993994Y
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- short board
- pressing plate
- cylinder
- spring
- circuit board
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Abstract
The utility model relates to a tuning device, in particular to a short circuit board tuning device for a broadband coupled resonant cavity. The tuning device comprises a short circuit board arranged between an internal conductor and an external conductor, a drive regulating device arranged on the back side of the short circuit board and used to drive the short circuit board to move, and a plurality of pneumatic spring charging devices positioned along the outer margin of, and the edge of the inner hole of, the short circuit board. The conducting contact spring pieces are arranged on the surface of the internal conductor and the external conductor via the pneumatic spring charging devices. When it is needed to move the short circuit board, compressed air will flow into the cylinder via a solenoid valve, and drive the piston to move; then the piston rod will propel the contact spring pieces to leave the external conductor and the internal conductor, and further propel the drive regulating device to move the short circuit board. When the short circuit board reaches the desired position, the solenoid valve will be closed, the compressed air in the cylinder will be discharged, and the contact pieces will maintain good electrical contact with the internal conductor and the external conductor, thus avoiding the friction between the short circuit board and the internal and external conductors when the short circuit board is moved.
Description
Technical field
The utility model relates to a kind of cavity tuner, particularly broadband coupled resonator short board tuner.
Background technology
Adopt broadband coupled resonance cavate power amplifier replacement coil or resonance line traditional high frequency power amplifier (operating frequency range is at 3-110MHz) as resonant tank, owing to can avoid the interference of high order spurious mode, high efficiency, and be widely used.Described broadband coupled resonance cavate power amplifier is to adopt resonant tank and the coupling circuit of the resonant cavity of distributed constant as amplifier, the simplest resonant cavity as shown in Figure 1, be to constitute by inner wire 1 and outer conductor 2, be provided with the short circuit metal plate 3 that can slide arbitrarily between the internal and external conductor, the anode of electron tube 4 meets DC power supply Ea by group stream circle 6, for preventing high-frequency induction, the dc feeder 7 that is connected to choking coil 6 is arranged in the metal pore of inner wire 1.The anode of electron tube also connects inner wire 1 by capacitance C0.Referring to Fig. 2, described tuner comprises the described short board of being located between the internal and external conductor 3, is located at the short board back side and drives the drive adjusting device 5 that short board 3 moves; The conduction contact spring 8 at the edge of described short board by being located at short board 3 neighborings and endoporus 16 keeps the excellent electric contact with internal and external conductor, the front of short board and internal and external conductor constitute the resonant cavity 9 of required frequency, and conductive junction point 11 (as shown in Figure 3) also can be set on described conduction contact spring 8.Existing this short board tuner, in the long-term work process, contact spring on the short board and internal and external conductor sliding friction, often the surface with inner and outer conductor grinds groove, has a strong impact on the performance of cavity.
Summary of the invention
Technical problem to be solved in the utility model is, above-mentioned deficiency at prior art, and provided a kind of both can the assurance to have enough contact pressures, the broadband coupled resonator short board tuner on can not grind away again internal and external conductor and contact spring surface between contact spring on the short board and the internal and external conductor.
Broadband of the present invention coupled resonator short board tuner is realized by following technical scheme.
A kind of broadband coupled resonator short board tuner, comprise: be located at the short board between the internal and external conductor, be located at the short board back side and drive the drive adjusting device that short board moves and a plurality of conduction contact springs of being located at short board neighboring and interior bore edges, and described conduction contact spring and internal and external conductor excellent electric contact, it is characterized in that: be provided with a plurality of pneumatic spring pressue devices along short board neighboring and interior bore edges, described conduction contact spring is pressed against described internal and external conductor surface by described a plurality of pneumatic spring pressue devices.
Described broadband coupled resonator short board tuner, it is characterized in that: described pneumatic spring pressue device is to be made of cylinder, pressing plate, contact spring, conducting strip, spring and bearing, wherein, described cylinder and bearing are fixedly arranged on the back side of short board; Hinged point in the middle of described pressing plate is provided with, an end of pressing plate is provided with slotted hole, and the other end is provided with contact spring; Described pressing plate is pivoted by hinged point in centre and bearing, and an end of pressing plate connects the piston rod of described cylinder by slotted hole, and an end that is provided with contact spring of pressing plate is positioned at short board neighboring or bore edges; Described spring be connected in the slotted hole end of described pressing plate and the parts that set firmly with short board on, or described spring is to be arranged between the piston and cylinder block of cylinder, and is sheathed on the piston rod; Described conducting strip is electrically connected contact spring and short board.
Described broadband coupled resonator short board tuner, it is characterized in that: the piston rod in described cylinder is provided with insulating case, and the slotted hole of described pressing plate is sheathed on the described insulating case, and is connected with the piston rod of described cylinder.
Described broadband coupled resonator short board tuner, it is characterized in that: described pneumatic spring pressue device is to be made of cylinder, pressing plate, contact spring, conducting strip, spring, wherein, described cylinder is fixedly arranged on the back side of short board; The centre of described pressing plate and the piston rod end of cylinder are hinged, and the another side of pressing plate is provided with contact spring; Described spring housing is located on the described cylinder piston rod, is pressed against between pressing plate and the cylinder block; Described conducting strip is electrically connected contact spring and short board.
Described broadband coupled resonator short board tuner, it is characterized in that: the described drive adjusting device of being located at the short board back side comprises: fixed head, drive motors and linear motion device, described fixed head is fixedly arranged on internal and external conductor by the end of short board short circuit part, described drive motors is fixedly arranged on the described fixed head, and described linear motion device connects described short board and driven by drive motors.
Described broadband coupled resonator short board tuner, it is characterized in that: described linear motion device is the feed screw nut device, and constitute by many covers leading screw nut, described a plurality of nut is hubbed on the fixed head, described a plurality of leading screw spiral shell respectively is located in described a plurality of nut, and an end and the short board back side of described a plurality of leading screws are fixed, and described drive motors connects and the described a plurality of nuts of driven in synchronism by band and belt wheel; And be provided with the band tensioning apparatus.
Described broadband coupled resonator short board tuner, it is characterized in that: described linear motion device is the rack-and-pinion device, and constitute by many sleeve gears tooth bar, described a plurality of gear is hubbed on the fixed head, described a plurality of tooth bar respectively with described a plurality of gears engaged, and described a plurality of tooth bar is fixed by the through hole and the short board back side be located on the fixed head, and described drive motors is by the described a plurality of gears of gear shaft driven in synchronism.
Described broadband coupled resonator short board tuner is characterized in that: the limit switch that is provided with restriction short board extreme position in the both sides of described fixed head.
Described broadband coupled resonator short board tuner is characterized in that: be provided with the displacement transducer that detects the short board position in described fixed head.
The contact spring that the utility model will be arranged at the short board periphery keeps electrically contacting by pneumatic spring pressue device and internal and external conductor, when the mobile short board of needs, make compressed air enter cylinder by electromagnetically operated valve, piston moves, by piston rod contact spring is broken away from and contact, and then the startup drive adjusting device moves short board with internal and external conductor.When moving on to desired location, close electromagnetically operated valve, the compressed air in the cylinder is discharged, contact spring keeps under the effect of spring and the excellent electric contact of internal and external conductor, thus the friction between contact spring and the internal and external conductor when having avoided mobile short board.
For architectural feature of the present utility model and effect thereof are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows.
Description of drawings
Fig. 1 is the structural representation of exemplary wideband coupled resonator.
Fig. 2 is existing cavity internal short-circuit plate schematic diagram.
Fig. 3 is existing short board and contact spring connection diagram.
Fig. 4 is the utility model short board is connected embodiment one with contact spring a schematic diagram.
Fig. 5 is the pressing plate schematic diagram that is provided with contact spring among Fig. 4 embodiment.
Fig. 6 is the schematic diagram of the embodiment two that is connected with contact spring of the utility model short board.
Fig. 7 is a cutaway view of the present utility model, the display driver adjusting device.
Fig. 8 is the vertical view of Fig. 7, the display driver adjusting device.
Fig. 9 is the structural representation of another kind of drive adjusting device.
Embodiment
The utility model provides a kind of broadband coupled resonator short board tuner, the broadband coupled resonator that can be used for various structures, comprising the resonant cavity and the multiple folding series resonance chamber of two inner wires: existing exemplary wideband coupled resonator with single inner wire shown in Figure 1 is that example describes.Described exemplary wideband coupled resonator is made of inner wire 1 and outer conductor 2, is provided with the short circuit metal plate 3 that can slide arbitrarily between the internal and external conductor, is provided with conduction contact spring 8 in short board 3 neighborings and interior bore edges; Described tuner comprises describedly to be located at short board 3 between the internal and external conductor, to be located at the short board back side and to drive short circuit and pull 3 drive adjusting devices that move 5; Friction when solving mobile short board between contact spring and the internal and external conductor, the utility model is provided with a plurality of pneumatic spring pressue devices along short board neighboring and interior bore edges, described conduction contact spring is pressed against described internal and external conductor surface by described a plurality of pneumatic spring pressue devices.Keep good electrical contact.When the mobile short board of needs, make compressed air enter cylinder by electromagnetically operated valve, piston moves, and by piston rod contact spring is broken away from and contact with internal and external conductor, and then the startup drive adjusting device moves short board.When moving on to desired location, close electromagnetically operated valve, the compressed air in the cylinder is got rid of, contact spring keeps under the effect of spring and the excellent electric contact of internal and external conductor, thus the friction between contact spring and the internal and external conductor when having avoided mobile short board.Concrete structure is as follows:
Embodiment one
Shown in Figure 4 is a kind of embodiment of the utility model pneumatic spring pressue device, the pneumatic spring pressue device that this embodiment provided is to be made of cylinder 21, pressing plate 22, contact spring 23, conducting strip 24, spring 25 and bearing 26, wherein, described cylinder 21 and bearing 26 are fixedly arranged on the back side of short board 3, and wherein said cylinder 21 is the back side that is fixedly arranged on short board 3 by holder; Hinged point 221 in the middle of described pressing plate 22 is provided with, an end of pressing plate 22 is provided with slotted hole 222, and the other end is provided with contact spring 23; Described pressing plate 22 is pivoted with bearing 26 by the hinged point 221 in centre, and an end of pressing plate 22 is by the piston rod 211 of the described cylinder 21 of slotted hole 222 connections, and an end that is provided with contact spring of pressing plate 22 is positioned at the neighboring or the bore edges of short board 3; Described spring 25 be connected in the slotted hole end of described pressing plate 22 and the parts that set firmly with short board on; Described conducting strip 24 is electrically connected contact spring 23 and short board 3.When pressing plate is a metal material when making, import cylinder for preventing electric current, be provided with insulating case in the piston rod of described cylinder, the slotted hole of described pressing plate is sheathed on the described insulating case, and is connected with the piston rod of described cylinder.
When cylinder 21 is failure to actuate, utilize the pulling force of spring 25 to make an end that is provided with contact spring of pressing plate 22 be close to inner wire or outer conductor, to keep good electrical contact.When the mobile short board 3 of needs, by connecting electromagnetically operated valve (not shown) supply cylinder 21 compressed air of compressed-air actuated pipeline, cylinder piston outwards promotes pressing plate 22 by piston rod 211, pressing plate 22 rotates around hinged point 221, make to be provided with an end disengaging of contact spring and contacting of inner wire or outer conductor, thus the friction between contact spring and the internal and external conductor when having avoided mobile short board.If used cylinder is that spring pushes back the type cylinder, promptly between the piston of cylinder and cylinder block, be provided with spring, and spring housing is located on the piston rod, the spring 25 that then connects pressing plate 22 can.If spring pushes back the spring pressure deficiency in the type cylinder, spring 25 can be set between pressing plate 22 and short board.
Fig. 5 is the outline drawing of present embodiment center platen 22, and described pressing plate 22 is isosceles triangle, and described slotted hole 222 is located at the corner position of isosceles triangle, sets firmly the contact spring 23 of one group of solid matter in the base of isosceles triangle.For making contact spring can just be pressed on inner wire or outer conductor surface, the close bottom position of described isosceles triangle pressing plate is provided with kink, referring to Fig. 4, and described pressing plate bottom shape should be consistent with the shape of the conductor that is contacted, if conductor is a tubular, then the pressing plate bottom shape is corresponding circular arc.If conductor is a prism-shaped, then the pressing plate bottom shape is a straight line.
Embodiment two
Shown in Figure 6 is the another kind of execution mode of pneumatic spring pressue device, is to be made of cylinder 31, pressing plate 32, contact spring 33, conducting strip 34 and spring 35, and wherein, described cylinder 31 is fixedly arranged on the back side of short board; Piston rod 311 ends of the centre of described pressing plate 32 and cylinder 31 are hinged, and the another side of pressing plate 32 is provided with contact spring 33; Described spring 35 is sheathed on the described cylinder piston rod 311, and is pressed against between pressing plate 32 and the cylinder block; Described conducting strip 34 is electrically connected contact spring 33 and short board 3.
When cylinder 31 is failure to actuate, utilize the pulling force of spring 35 to make an end that is provided with contact spring 33 of pressing plate 32 be close to inner wire or outer conductor, to keep good electrical contact.When the mobile short board 3 of needs, by connecting electromagnetically operated valve (not shown) supply cylinder 31 compressed air of compressed-air actuated pipeline, cylinder piston inwardly spurs pressing plate 32 by piston rod 311, make contacting of the one side end disengaging that is provided with contact spring and inner wire or outer conductor, thus the friction between contact spring and the internal and external conductor when having avoided mobile short board.Described in the present embodiment pressing plate 32 is set to the rectangle (not shown).If described cylinder is a spring extrusion type cylinder, then can save the spring 35 of peripheral hardware.
Broadband described in the utility model coupled resonator short board tuner, also comprise the drive adjusting device of being located at the short board back side, described drive adjusting device comprises: fixed head 41, drive motors 42 and linear motion device 50, described fixed head 41 is fixedly arranged on internal and external conductor by the end of short board 3 short circuits part, described drive motors 42 is fixedly arranged on the described fixed head 41, and described linear motion device 50 connects described short board 3 and driven by drive motors 42.
Concrete structure is, described linear motion device 50 is feed screw nut device 51 (as Fig. 7,8), and is made of many covers leading screw nut 511,512, and described many covers are at least 3 covers, can be 4,5,6,8, the .. cover; Described a plurality of nut 512 is hubbed on the fixed head 41, described a plurality of leading screw 511 spiral shell respectively is located in described a plurality of nut 512, and an end of described a plurality of leading screw 511 and short board 3 back sides are fixed, described drive motors 42 by be with 43 and belt wheel 44 connect and the described a plurality of nuts 512 of driven in synchronism; Described driven in synchronism can and be brought realization synchronously by the synchronizing wheel with engaging tooth.And be provided with band tensioning apparatus 45, be used for the tensioning degree of accommodation zone.
Described linear motion device also can be a rack-and-pinion device 60 (as shown in Figure 9), and constitute by many sleeve gears tooth bar 61,62, described a plurality of gear 61 is hubbed on the fixed head 41, described a plurality of tooth bar 62 meshes with described a plurality of gears 61 respectively, and described a plurality of tooth bar 62 is fixed by the through hole and short board 3 back sides be located on the fixed head 41, and described drive motors 42 is by the described a plurality of gears of gear shaft 63 driven in synchronism.
Be provided with the limit switch of restriction short board extreme position in the both sides of described fixed head 41.Described limit switch is electrically connected described drive motors 42, and 42 sections electric stalls of control drive motors when short board moves to the two ends extreme position are to prevent short board collision cavity two ends.
Be provided with the displacement transducer that detects the short board position in described fixed head, be used to detect the short board position with the required frequency of accurate control.
Claims (9)
1, a kind of broadband coupled resonator short board tuner, comprise: be located at the short board between the internal and external conductor, be located at the short board back side and drive the drive adjusting device that short board moves and a plurality of conduction contact springs of being located at short board neighboring and interior bore edges, and described conduction contact spring and internal and external conductor excellent electric contact, it is characterized in that: be provided with a plurality of pneumatic spring pressue devices along short board neighboring and interior bore edges, described conduction contact spring is pressed against described internal and external conductor surface by described a plurality of pneumatic spring pressue devices.
2, broadband according to claim 1 coupled resonator short board tuner, it is characterized in that: described pneumatic spring pressue device is to be made of cylinder, pressing plate, contact spring, conducting strip, spring and bearing, wherein, described cylinder and bearing are fixedly arranged on the back side of short board; Hinged point in the middle of described pressing plate is provided with, an end of pressing plate is provided with slotted hole, and the other end is provided with contact spring; Described pressing plate is pivoted by hinged point in centre and bearing, and an end of pressing plate connects the piston rod of described cylinder by slotted hole, and an end that is provided with contact spring of pressing plate is positioned at short board neighboring or bore edges; Described spring be connected in the slotted hole end of described pressing plate and the parts that set firmly with short board on, or described spring is to be arranged between the piston and cylinder block of cylinder, and is sheathed on the piston rod; Described conducting strip is electrically connected contact spring and short board.
3, broadband according to claim 1 coupled resonator short board tuner, it is characterized in that: the piston rod in described cylinder is provided with insulating case, and the slotted hole of described pressing plate is sheathed on the described insulating case, and is connected with the piston rod of described cylinder.
4, broadband according to claim 1 coupled resonator short board tuner, it is characterized in that: described pneumatic spring pressue device is to be made of cylinder, pressing plate, contact spring, conducting strip, spring, wherein, described cylinder is fixedly arranged on the back side of short board; The centre of described pressing plate and the piston rod end of cylinder are hinged, and the another side of pressing plate is provided with contact spring; Described spring housing is located on the described cylinder piston rod, is pressed against between pressing plate and the cylinder block; Described conducting strip is electrically connected contact spring and short board.
5, broadband according to claim 1 coupled resonator short board tuner, it is characterized in that: the described drive adjusting device of being located at the short board back side comprises: fixed head, drive motors and linear motion device, described fixed head is fixedly arranged on internal and external conductor by the end of short board short circuit part, described drive motors is fixedly arranged on the described fixed head, and described linear motion device connects described short board and driven by drive motors.
6, broadband according to claim 5 coupled resonator short board tuner, it is characterized in that: described linear motion device is the feed screw nut device, and constitute by many covers leading screw nut, described a plurality of nut is hubbed on the fixed head, described a plurality of leading screw spiral shell respectively is located in described a plurality of nut, and an end and the short board back side of described a plurality of leading screws are fixed, and described drive motors connects and the described a plurality of nuts of driven in synchronism by band and belt wheel; And be provided with the band tensioning apparatus.
7, broadband according to claim 5 coupled resonator short board tuner, it is characterized in that: described linear motion device is the rack-and-pinion device, and constitute by many sleeve gears tooth bar, described a plurality of gear is hubbed on the fixed head, described a plurality of tooth bar respectively with described a plurality of gears engaged, and described a plurality of tooth bar is fixed by the through hole and the short board back side be located on the fixed head, and described drive motors is by the described a plurality of gears of gear shaft driven in synchronism.
8, broadband according to claim 1 coupled resonator short board tuner is characterized in that: the limit switch that is provided with restriction short board extreme position in the both sides of described fixed head.
9, broadband according to claim 1 coupled resonator short board tuner is characterized in that: be provided with the displacement transducer that detects the short board position in described fixed head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620175174 CN200993994Y (en) | 2006-12-31 | 2006-12-31 | Broadband coupled resonant cavity short-circuit board tuning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620175174 CN200993994Y (en) | 2006-12-31 | 2006-12-31 | Broadband coupled resonant cavity short-circuit board tuning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200993994Y true CN200993994Y (en) | 2007-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620175174 Expired - Lifetime CN200993994Y (en) | 2006-12-31 | 2006-12-31 | Broadband coupled resonant cavity short-circuit board tuning device |
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| Country | Link |
|---|---|
| CN (1) | CN200993994Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868011A (en) * | 2012-07-23 | 2013-01-09 | 北京长峰广播通讯设备有限责任公司 | Coaxial overlapped output resonant cavity of radio-frequency wideband high-power electron tube amplifier |
| CN106041795A (en) * | 2016-08-04 | 2016-10-26 | 北京长峰广播通讯设备有限责任公司 | Pneumatic device for high-power transmitter |
-
2006
- 2006-12-31 CN CN 200620175174 patent/CN200993994Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868011A (en) * | 2012-07-23 | 2013-01-09 | 北京长峰广播通讯设备有限责任公司 | Coaxial overlapped output resonant cavity of radio-frequency wideband high-power electron tube amplifier |
| CN106041795A (en) * | 2016-08-04 | 2016-10-26 | 北京长峰广播通讯设备有限责任公司 | Pneumatic device for high-power transmitter |
| CN106041795B (en) * | 2016-08-04 | 2017-11-10 | 北京长峰广播通讯设备有限责任公司 | A kind of high-power transmitter pneumatic means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071219 |
|
| EXPY | Termination of patent right or utility model |