CN106992335B - Microwave tuning mechanical device - Google Patents
Microwave tuning mechanical device Download PDFInfo
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- CN106992335B CN106992335B CN201710273833.9A CN201710273833A CN106992335B CN 106992335 B CN106992335 B CN 106992335B CN 201710273833 A CN201710273833 A CN 201710273833A CN 106992335 B CN106992335 B CN 106992335B
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- block
- servo motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
Abstract
The invention provides a microwave tuning mechanical device, which relates to the technical field of electronic communication, wherein when the frequency of the microwave tuning mechanical device is changed or the microwave tuning mechanical device is electrified again, a microwave servo motor accurately transmits the power of the microwave servo motor through the command of an automatic control system.
Description
Technical Field
The invention relates to the technical field of electronic communication, in particular to a tuning device of a microwave combiner.
Background
In the combiner, microwave tuning is a key step, the position of the tuning rod is directly related to the realization of the combiner index, the development of modern communication means needs to use an automatic tuning combiner which has the advantages of a point-frequency combiner and a broadband combiner, and the key for realizing the performance characteristic is a microwave tuning mechanical device.
The use frequency of the existing point frequency combiner is set, if the frequency is changed, the operation can be completed only by manually twisting a tuning screw, the screw is in a rotating motion mode in a resonant cavity, and the defects of large system insertion loss and small return loss are caused due to the defects that the rotating amplitude is uneven, the control is difficult, the thread clearance is large and the like.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the microwave tuning mechanical device which can correctly execute the command of an automatic control system, accurately transmit the power of a microwave servo motor, intelligently imitate manual operation tuning, and is quicker and more accurate than manual tuning.
In the microwave tuning mechanical device, a microwave servo motor is fixed on a support frame through a flat-head M3X35 stainless steel screw, a bottom support is connected with the support frame through a round-head M4X10 stainless steel screw, and a hoop is riveted on the bottom support and is coaxial with a microwave servo motor shaft after quenching and electroplating processes; a microwave servo motor shaft is connected with a lead screw through an internal thread of the microwave servo motor shaft, the lead screw is coaxially connected with a tuning rod through a fixing block, the fixing block is arranged on a guide block through an M2X8 flat head screw, the tuning rod axially penetrates through the inside of a hoop, and a semicircular contact surface on the hoop is always in contact with the outer surface of the tuning rod; the mounting sleeve is mounted on a microwave servo motor shaft through an M2.5X4 round-head screw, the lead screw penetrates through the mounting sleeve and is not in contact with the inner wall of the mounting sleeve, the limiter is connected with the lead screw through internal threads and can freely rotate on the lead screw, the spring is sleeved on the lead screw and is coaxial with the lead screw, the spring is clamped between the limiter and the mounting sleeve, and a boss in the spring direction on the limiter is matched with a groove in the spring direction on the mounting sleeve;
the cross section of the guide block is in a symmetrical hexagon, the cross section is symmetrical about two opposite vertexes, a No. 1 guide ear and a No. 2 guide ear are respectively arranged at the two vertexes where the symmetrical lines are located, the edges at the two sides of the two guide ears are mutually vertical, the two edges which are not adjacent to the guide ears are mutually parallel, each guide ear is a cylinder, one surface of the guide block with the fixing block mounting hole is an upper bottom surface, and the upper bottom surface of the guide block is parallel to a lower bottom surface;
the side surface which is adjacent to the No. 1 guide ear clockwise is cut in an L shape perpendicular to the upper bottom surface of the guide block, the L shape is cut to form a mounting groove of the micro-switch touch block, two side surfaces of the mounting groove are perpendicular to each other and are parallel to two adjacent side edges of the No. 1 guide ear respectively, the side surface which is not adjacent to the No. 1 guide ear clockwise is cut in an L shape perpendicular to the upper bottom surface and the lower bottom surface of the guide block, the L shape is cut to form a abdicating groove, the abdicating groove is directly connected with the side surface of the mounting groove adjacent to the micro-switch touch block, and the guide block is ensured not to conflict with the;
the micro-switch touch block is fixed in the L-shaped mounting groove by an M2X8 flat-head screw, the outer side surface of the micro-switch touch block is vertical to the clockwise adjacent side surface of the No. 1 guide ear, and the micro-switch touch block is not in contact with the inner side surface of the support frame;
the guide rails are positioned on two diagonal points on the inner side of the support frame, the width of the two guide rails ensures that the guide ears can freely move up and down, the guide ears extend into the guide rails, the guide rails restrict the guide ears to do linear movement along the axial direction of the screw rod, a wire passing groove is processed on the side surface of the support frame adjacent to the No. 1 guide lug in the clockwise direction for two wires with the outer diameter of 0.9 mm to pass through without influencing the up-and-down movement of other parts in the support frame cavity, fixing the micro switch on the inner side surface of the support frame with the wire passing groove by two M2X10 stainless steel screws, wherein the distance from the bottom of the micro switch to the bottom of the support frame is 2 mm, one side of the micro switch with a button is opposite to the cambered surface of the micro switch touch block, and the plane where the highest point of the micro switch button towards the direction of the cambered surface of the micro switch touch block is located must be overlapped with the plane where the arc chord on the micro switch touch block is located;
when the micro-switch touch block moves downwards along with the guide block, the contact between the cambered surface of the micro-switch touch block and the micro-switch touch button completes one action of pressing the switch, and when the micro-switch touch block moves vertically upwards along with the guide block, the contact between the cambered surface of the micro-switch touch block and the micro-switch touch button completes one action of pressing the switch again;
when the frequency is changed or the power is supplied again, a retuning command is sent to the microwave servo motor, a motor shaft of the microwave servo motor rotates anticlockwise, the limiting device is driven by the mounting sleeve to rotate anticlockwise, meanwhile, the guide block is limited by the guide rail to rotate, so that the lead screw cannot rotate, the lead screw is forced to do linear motion, when the microswitch touch block touches the microswitch downwards along with the guide block, the microswitch is switched off, a callback signal is transmitted, the system sends a 'home' command, the microwave servo motor drives the motor shaft of the microwave servo motor to rotate clockwise, the lead screw is vertically lifted upwards, the tuning rod is driven to be vertically lifted upwards, and when the output power reaches 25 watts, the microwave servo motor receives a stop command, and the motor shaft of the microwave servo motor stops rotating.
The hoop is made of beryllium bronze materials, is subjected to heat preservation for 1 hour at 200-220 ℃ after quenching, and is naturally cooled, and the silver plating thickness is 7 microns.
The invention has the beneficial effects that:
1. the tuning precision of the invention is more accurate, the invention adopts M4X0.5 fine thread as the transmission lead screw, so that the movement speed of the tuning rod is uniform, the stop point is more accurate, and manual tuning generally uses M10 screw as the tuning rod, so that the defects of non-uniform rotation and poor control of the rotation amplitude exist;
2. the rotation function of the motor is converted into the linear telescopic function of the tuning rod, and the tuning rod is changed into a smooth column shape by a screw, so that the transmission insertion loss index of the tuning mechanism is better than that of a manual tuning mechanism;
3. the microwave servo motor adopted by the invention can accurately control the rotation amplitude of the motor shaft within one twentieth of a circle, and the rotation amplitude of the manually rotated tuning screw is difficult to accurately find the resonance position by depending on the experience of an operator;
4. the non-standard spring with dense middle and two ends is adopted to always tension the screw rod in one direction, the tuning rod is ensured to stably extend and retract along a straight line by using the annular hoop device, the traditional tuning screw is in clearance fit with the cavity, and the tuning screw irregularly swings in the rotation process, so that the signal instantaneous interruption phenomenon exists in the tuning process, and the tuning accuracy is influenced;
5. the invention can realize the remote tuning, can replace the manual tuning by remotely controlling the mechanical device, and control the tuning time within a few minutes, thereby reducing the labor intensity of workers, and the manual tuning process takes hours or even longer, bears the measuring instrument, and ascends to the base station for debugging;
in conclusion, the invention simulates the manual tuning process, overcomes the defect of manual tuning, and has the advantages of feasible process, material saving, strong practicability, good use effect and convenient popularization and use.
Drawings
Fig. 1 is an external view of a microwave tuning device according to the present invention.
Fig. 2 is a schematic view of the microwave tuning apparatus of the present invention in terms of component mounting.
Fig. 3 is a schematic view of the hoop structure of the present invention.
Fig. 4 is a schematic diagram of the position of the guide block and the microswitch in the invention.
Fig. 5 is a schematic view of the microswitch mounting position of the present invention.
Fig. 6 is a schematic view of the microswitch actuation process of the present invention.
The micro-switch comprises a microwave servo motor 1, a microwave servo motor 2, a support frame 3, a bottom support 4, a tuning rod 5, a mounting sleeve 6, a spring 7, a limiter 8, a lead screw 9, a guide block 10, a hoop 11, a microwave servo motor shaft 12, a fixing block 13, a micro-switch touch block 14, a guide ear 15, an arc contact surface 16, a micro-switch touch button 17, a micro-switch 18, a guide rail 19, a wire passing groove 20, an upper bottom surface of the guide block 21, a fixing block mounting hole 22, a guide ear anticlockwise adjacent side 23, a guide ear clockwise adjacent side 24, a mounting groove 25, an outer side surface of the micro-switch touch block 25, a micro-switch touch block arc surface 26, a abdicating groove 27, a side surface not adjacent to the guide ear 28 and a micro-switch back 29.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
In the microwave tuning mechanical device, a microwave servo motor is fixed on a support frame through a flat-head M3X35 stainless steel screw, a bottom support is connected with the support frame through a round-head M4X10 stainless steel screw, and a hoop is riveted on the bottom support and is coaxial with a microwave servo motor shaft after quenching and electroplating processes; a microwave servo motor shaft is connected with a lead screw through an internal thread of the microwave servo motor shaft, the lead screw is coaxially connected with a tuning rod through a fixing block, the fixing block is arranged on a guide block through an M2X8 flat head screw, the tuning rod axially penetrates through the inside of a hoop, and a semicircular contact surface on the hoop is always in contact with the outer surface of the tuning rod; the mounting sleeve is mounted on a microwave servo motor shaft through an M2.5X4 round-head screw, the lead screw penetrates through the mounting sleeve and is not in contact with the inner wall of the mounting sleeve, the limiter is connected with the lead screw through internal threads and can freely rotate on the lead screw, the spring is sleeved on the lead screw and is coaxial with the lead screw, the spring is clamped between the limiter and the mounting sleeve, and a boss in the spring direction on the limiter is matched with a groove in the spring direction on the mounting sleeve;
the cross section of the guide block is in a symmetrical hexagon, the cross section is symmetrical about two opposite vertexes, a No. 1 guide ear and a No. 2 guide ear are respectively arranged at the two vertexes where the symmetrical lines are located, the edges at the two sides of the two guide ears are mutually vertical, the two edges which are not adjacent to the guide ears are mutually parallel, each guide ear is a cylinder, one surface of the guide block with the fixing block mounting hole is an upper bottom surface, and the upper bottom surface of the guide block is parallel to a lower bottom surface;
the side surface which is adjacent to the No. 1 guide ear clockwise is cut in an L shape perpendicular to the upper bottom surface of the guide block, the L shape is cut to form a mounting groove of the micro-switch touch block, two side surfaces of the mounting groove are perpendicular to each other and are parallel to two adjacent side edges of the No. 1 guide ear respectively, the side surface which is not adjacent to the No. 1 guide ear clockwise is cut in an L shape perpendicular to the upper bottom surface and the lower bottom surface of the guide block, the L shape is cut to form a abdicating groove, the abdicating groove is directly connected with the side surface of the mounting groove adjacent to the micro-switch touch block, and the guide block is ensured not to conflict with the;
the micro-switch touch block is fixed in the L-shaped mounting groove by an M2X8 flat-head screw, the outer side surface of the micro-switch touch block is vertical to the clockwise adjacent side surface of the No. 1 guide ear, and the micro-switch touch block is not in contact with the inner side surface of the support frame;
the guide rails are positioned on two diagonal points on the inner side of the support frame, the width of the two guide rails ensures that the guide ears can freely move up and down, the guide ears extend into the guide rails, the guide rails restrict the guide ears to do linear movement along the axial direction of the screw rod, a wire passing groove is processed on the side surface of the support frame adjacent to the No. 1 guide lug in the clockwise direction for two wires with the outer diameter of 0.9 mm to pass through without influencing the up-and-down movement of other parts in the support frame cavity, fixing the micro switch on the inner side surface of the support frame with the wire passing groove by two M2X10 stainless steel screws, wherein the distance from the bottom of the micro switch to the bottom of the support frame is 2 mm, one side of the micro switch with a button is opposite to the cambered surface of the micro switch touch block, and the plane where the highest point of the micro switch button towards the direction of the cambered surface of the micro switch touch block is located must be overlapped with the plane where the arc chord on the micro switch touch block is located;
when the micro-switch touch block moves downwards along with the guide block, the contact between the cambered surface of the micro-switch touch block and the micro-switch touch button completes one action of pressing the switch, and when the micro-switch touch block moves vertically upwards along with the guide block, the contact between the cambered surface of the micro-switch touch block and the micro-switch touch button completes one action of pressing the switch again;
when the frequency is changed or the power is supplied again, a retuning command is sent to the microwave servo motor, a motor shaft of the microwave servo motor rotates anticlockwise, the limiting device is driven by the mounting sleeve to rotate anticlockwise, meanwhile, the guide block is limited by the guide rail to rotate, so that the lead screw cannot rotate, the lead screw is forced to do linear motion, when the microswitch touch block touches the microswitch downwards along with the guide block, the microswitch is switched off, a callback signal is transmitted, the system sends a 'home' command, the microwave servo motor drives the motor shaft of the microwave servo motor to rotate clockwise, the lead screw is vertically lifted upwards, the tuning rod is driven to be vertically lifted upwards, and when the output power reaches 25 watts, the microwave servo motor receives a stop command, and the motor shaft of the microwave servo motor stops rotating.
Wherein fig. 1 is a schematic external view of the microwave tuning apparatus of the present invention, fig. 2 is a schematic part mounting diagram of the microwave tuning apparatus of the present invention, and the requirements for part mounting of the apparatus can be seen from fig. 1 and fig. 2.
FIG. 3 is a schematic diagram of the structure of the hoop, the hoop is made of beryllium bronze, and is quenched, kept at 200-220 ℃ for 1 hour, and naturally cooled, and the silver plating thickness is 7 um.
Fig. 4 is a schematic diagram of the matching position of the guide block and the microswitch, the mutual relation between the installation groove and the abdicating groove can be seen from the diagram, fig. 5 is a schematic diagram of the installation position of the microswitch, fig. 6 is a schematic diagram of the touch process of the microswitch, and as can be seen from fig. 4, 5 and 6, one side of the microswitch with the button is transversely installed, the side of the microswitch with the button is opposite to the direction of the cambered surface of the microswitch touch block, and the plane of the most prominent point of the microswitch button towards the direction of the cambered surface of the microswitch touch block is superposed with the plane of the cambered chord on the microswitch touch block.
Claims (2)
1. A microwave tuning mechanism, characterized by:
in the microwave tuning mechanical device, a microwave servo motor is fixed on a support frame through a flat-end M3X35 stainless steel screw, a bottom support is connected with the support frame through a round-end M4X10 stainless steel screw, and a hoop is riveted on the bottom support and is coaxial with a microwave servo motor shaft after quenching and electroplating processes; a microwave servo motor shaft is connected with a lead screw through an internal thread of the microwave servo motor shaft, the lead screw is coaxially connected with a tuning rod through a fixing block, the fixing block is arranged on a guide block through an M2X8 flat head screw, the tuning rod axially penetrates through the inside of a hoop, and a semicircular contact surface on the hoop is always in contact with the outer surface of the tuning rod; the mounting sleeve is mounted on a microwave servo motor shaft through an M2.5X4 round-head screw, the lead screw penetrates through the mounting sleeve and is not in contact with the inner wall of the mounting sleeve, the limiter is connected with the lead screw through internal threads and can freely rotate on the lead screw, the spring is sleeved on the lead screw and is coaxial with the lead screw, the spring is clamped between the limiter and the mounting sleeve, and a boss in the spring direction on the limiter is matched with a groove in the spring direction on the mounting sleeve;
the cross section of the guide block is in a symmetrical hexagon, the cross section is symmetrical about two opposite vertexes, a No. 1 guide ear and a No. 2 guide ear are respectively arranged at the two vertexes where the symmetrical lines are located, the edges at the two sides of the two guide ears are mutually vertical, the two edges which are not adjacent to the guide ears are mutually parallel, each guide ear is a cylinder, one surface of the guide block with the fixing block mounting hole is an upper bottom surface, and the upper bottom surface of the guide block is parallel to a lower bottom surface;
the side surface which is adjacent to the No. 1 guide ear clockwise is cut in an L shape perpendicular to the upper bottom surface of the guide block, the L shape is cut to form a mounting groove of the micro-switch touch block, two side surfaces of the mounting groove are perpendicular to each other and are parallel to two adjacent side edges of the No. 1 guide ear respectively, the side surface which is not adjacent to the No. 1 guide ear clockwise is cut in an L shape perpendicular to the upper bottom surface and the lower bottom surface of the guide block, the L shape is cut to form a abdicating groove, the abdicating groove is directly connected with the side surface of the mounting groove adjacent to the micro-switch touch block, and the guide block is ensured not to conflict with the;
the micro-switch touch block is fixed in the L-shaped mounting groove by an M2X8 flat-head screw, the outer side surface of the micro-switch touch block is vertical to the clockwise adjacent side surface of the No. 1 guide ear, and the micro-switch touch block is not in contact with the inner side surface of the support frame;
the guide rails are positioned on two opposite angle points on the inner side of the support frame, the width of the two guide rails ensures that the guide ears can freely move up and down, the guide ears extend into the guide rails, the guide rails restrain the guide ears to do linear movement along the axial direction of the screw rod, a wire passing groove is processed on the side surface of the support frame adjacent to the No. 1 guide ear in the clockwise direction for two electric wires with the outer diameter of 0.9 mm to pass through without influencing the up-and-down movement of other parts in the cavity of the support frame, two M2X10 stainless steel screws fix the microswitch on the inner side surface of the support frame with the wire passing groove, the bottom of the microswitch is 2 mm away from the bottom of the support frame, one side of the microswitch with a button is opposite to the cambered surface of the microswitch touch block, and when the microswitch touch block moves up and down;
when the micro-switch touch block moves downwards along with the guide block, the contact between the cambered surface of the micro-switch touch block and the touch button of the micro-switch completes one action of pressing the switch;
when the frequency is changed or the power is supplied again, a retuning command is sent to the microwave servo motor, a motor shaft of the microwave servo motor rotates anticlockwise, the limiting device is driven by the mounting sleeve to rotate anticlockwise, meanwhile, the guide block is limited by the guide rail to rotate, so that the lead screw cannot rotate, the lead screw is forced to do linear motion, when the microswitch touch block touches the microswitch downwards along with the guide block, the microswitch is switched off, a callback signal is transmitted, the system sends a 'home' command, the microwave servo motor drives the motor shaft of the microwave servo motor to rotate clockwise, the lead screw is vertically lifted upwards, the tuning rod is driven to be vertically lifted upwards, and when the output power reaches 25 watts, the microwave servo motor receives a stop command, and the motor shaft of the microwave servo motor stops rotating.
2. The microwave tuning mechanism of claim 1, wherein:
the hoop is made of beryllium bronze materials, is subjected to heat preservation for 1 hour at the temperature of 200-220 ℃ after quenching, is naturally cooled, and has the silver plating thickness of 7 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710273833.9A CN106992335B (en) | 2017-04-25 | 2017-04-25 | Microwave tuning mechanical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710273833.9A CN106992335B (en) | 2017-04-25 | 2017-04-25 | Microwave tuning mechanical device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106992335A CN106992335A (en) | 2017-07-28 |
| CN106992335B true CN106992335B (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710273833.9A Expired - Fee Related CN106992335B (en) | 2017-04-25 | 2017-04-25 | Microwave tuning mechanical device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115318185B (en) * | 2022-08-16 | 2023-06-09 | 哈尔滨工业大学（深圳） | Shaft positioning rolling mechanism |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202042578U (en) * | 2011-03-07 | 2011-11-16 | 京信通信技术(广州)有限公司 | Transmission device for electrical tunable combiner |
| CN106464233A (en) * | 2014-05-31 | 2017-02-22 | 莫里微波公司 | Impedance tuners with position feedback |
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2017
- 2017-04-25 CN CN201710273833.9A patent/CN106992335B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202042578U (en) * | 2011-03-07 | 2011-11-16 | 京信通信技术(广州)有限公司 | Transmission device for electrical tunable combiner |
| CN106464233A (en) * | 2014-05-31 | 2017-02-22 | 莫里微波公司 | Impedance tuners with position feedback |
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| CN106992335A (en) | 2017-07-28 |
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