WO2023071070A1

WO2023071070A1 - Antenna transmission apparatus

Info

Publication number: WO2023071070A1
Application number: PCT/CN2022/086851
Authority: WO
Inventors: 黄云龙; 吴壁群; 谢浩昌; 张鹏
Original assignee: 广东博纬通信科技有限公司
Priority date: 2021-10-29
Filing date: 2022-04-14
Publication date: 2023-05-04
Also published as: CN113991302A; CN113991302B

Abstract

The present invention relates to an antenna transmission apparatus, comprising an electric regulation controller, a position selection transmission assembly, and a screw rod transmission assembly, wherein the position selection transmission assembly comprises a position selection gear, a transmission input gear, a position selection sliding plate, a transmission gear set, and a plurality of groups of clutch pieces; the screw rod transmission assembly comprises a plurality of groups of transmission screw rods; the transmission gear set comprises a plurality of transmission gears; the position selection motor of the electric regulation controller can output rotation motion to the position selection gear so as to drive the position selection sliding plate to linearly move; when the position selection sliding plate moves at different positions, the position selection sliding plate can eject out the clutch pieces at the corresponding positions so as to achieve transmission connections between the clutch pieces and the transmission screw rods, thereby completing the position selection of the transmission screw rods; the transmission motor of the electric regulation controller can output rotation motion to the transmission input gear to drive the transmission gears to rotate, thereby driving the clutch pieces to synchronously rotate; and the rotation of the clutch pieces drives the transmission screw rods to rotate, thereby driving a phase shifter to perform regulation. The present invention is simple in structure and convenient to manufacture, can control more groups of phase shifters according to actual requirements, and is wide in product application range.

Description

An antenna transmission device

technical field

The invention relates to the technical field of antennas, in particular to an antenna transmission device.

Background technique

The base station antenna generally needs to be tilted downward at a certain angle relative to the horizontal line during operation, and the size of the tilt angle can change the radiation range of the antenna. At present, there are two main ways to adjust the antenna downtilt angle: mechanical downtilt angle and electrical downtilt angle. The electrical downtilt angle can be controlled by remote electric adjustment, and the cost is low, so it is more and more widely used.

As the number of mobile communication terminal users continues to increase, it is often required that the same antenna needs to have more communication frequency bands, and the electrical downtilt of each communication frequency band needs to be independently controlled by driving its corresponding phase shifter transmission mechanism. Changes in electrical downtilt. In traditional transmission devices, one drive motor is usually used to correspond to one phase shifter transmission mechanism. Due to the large number of control circuits and motors, this method will inevitably cause problems such as high cost, complex structure, large space occupation and low reliability.

Contents of the invention

The object of the present invention is to provide an antenna transmission device with simple structure, convenient manufacture, low cost, light weight, small size and reliable quality.

For realizing the purpose of the present invention, adopt following technical scheme:

An antenna transmission device, the transmission device includes an electric controller, a position selection transmission assembly, and a screw transmission assembly; the position selection transmission assembly includes a position selection gear, a transmission input gear, a position selection slide plate, a transmission gear set and multiple sets of A clutch, the screw drive assembly includes multiple sets of drive screws, and the drive gear set includes multiple drive gears;

The position selection motor of the electric control controller can output rotary motion to the position selection gear to drive the position selection slide to move linearly. When the position selection slide moves to different positions, it can eject the clutch at the corresponding position to realize the connection between the clutch and the transmission screw. The transmission connection completes the position selection of the transmission screw. The transmission motor of the ESC can output rotary motion to the transmission input gear to drive the transmission gear to rotate so as to drive the clutch to rotate synchronously. The rotation of the clutch drives the transmission screw to rotate to drive the moving The phaser is adjusted.

A further improvement is that the tail of the clutch is provided with a return elastic member. Under the action of the return elastic member, the clutch and the transmission screw remain separated. When the position selection slide moves to the front of a certain clutch, the return elastic is compressed. The clutch part is ejected so that the protruding feet of the clutch part are inserted into the groove of the transmission screw to achieve engagement. When the position selection slide plate moves away from the clutch part, the clutch part is separated from the transmission screw under the action of elastic force.

A further improvement is that the position selection transmission assembly includes a front cavity and a rear cavity, and the position selection gear, the transmission input gear and the transmission gear set are installed inside the cavity formed by the front cavity and the rear cavity.

A further improvement is that the two ends of the position selection slide plate are respectively provided with a right stop surface and a left stop surface, and the two ends of the rear cavity are respectively provided with a right stop groove and a left stop groove for calibration of position selection.

A further improvement is that the screw drive assembly also includes a stop sleeve, a guide rod, and a tie rod connector. One end of the drive screw is provided with a stop end, and the other end is equipped with a stop sleeve. On the transmission screw and arranged between the stop end and the stop sleeve, a guide rod is arranged parallel to the outside of the drive screw, and the tie rod connector is provided with a guide hole corresponding to the guide rod. The stop end and the stop The bit sleeve is used to calibrate the movement stroke of the drive screw.

A further improvement is that the transmission device also includes a pull rod, and the transmission screw and the tie rod connecting piece cooperate through a threaded screw connection, the tie rod connecting piece is connected with the pull rod, and the helical movement of the driving screw is converted into the tie rod connecting piece and the pull rod move along the straight line of the guide rod.

A further improvement is that the plurality of transmission gears are arranged side by side, and two adjacent transmission gears are meshed and connected.

A further improvement is that after the clutch part passes through the transmission shaft hole of the rear cavity, the inner hole of the transmission gear, the shaft hole of the front cavity and the reset elastic part in sequence, a snap ring is installed at the tail of the clutch part to fix it; the transmission The input shaft sleeve passes through the input shaft hole of the front cavity, the inner hole of the transmission input gear and the input shaft hole of the rear cavity in turn, and a snap ring is installed at the tail of the transmission input shaft sleeve to fix it; the position selection input shaft sleeve Pass through the position selection shaft hole of the front cavity, the inner hole of the position selection gear and the position selection shaft hole of the rear cavity in sequence, and install a snap ring at the tail of the position selection input shaft sleeve for fixing.

A further improvement is that the position selection slide plate includes at least one position selection boss, and the position selection protrusion is used to compress the reset elastic member to push out the clutch member, and the position selection transmission assembly also includes a front position selection guide rail and a rear position selection guide rail. Position selection guide rail, when the ESC controller transmits the rotational motion of the position selection motor to the position selection gear through the position selection input bushing, the position selection gear converts the input rotational motion by meshing with the position selection rack of the position selection slide plate Make linear motion for the position selection slide plate along the front position selection guide rail and the rear position selection guide rail.

A further improvement is that the shaft body of the clutch, the shaft body of the transmission input shaft sleeve, the shaft body of the position selection input shaft sleeve, the inner holes of each transmission gear, the inner hole of the position selection gear and the inner hole of the transmission input gear Both are spline structures, and the shaft body of the clutch can slide smoothly in the inner hole of the transmission gear, the shaft body of the transmission input shaft sleeve is set in the inner hole of the transmission input gear, and the position selection input shaft sleeve The shaft body is sleeved in the inner hole of the position selection gear.

Beneficial effects of the present invention:

The present invention is simple in structure, easy to manufacture, and can increase the number of transmission gears, clutch parts, springs, transmission screws, stop sleeves, guide rods, pull rod connectors and pull rods according to the actual situation, and can realize the control of more groups of shifting Phase device, the product has a wide range of applications.

Description of drawings

FIG. 1 is a schematic structural diagram of an antenna transmission device according to an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a position selection transmission assembly and a screw transmission assembly of an antenna transmission device according to an embodiment of the present invention;

Fig. 3 is an exploded structural diagram of a position selection transmission assembly and a screw transmission assembly of an antenna transmission device according to an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a position selection transmission assembly of an antenna transmission device according to an embodiment of the present invention;

Fig. 5 is an exploded assembly diagram of a transmission input bushing and a transmission input gear of an antenna transmission device according to an embodiment of the present invention;

Fig. 6 is an exploded view of the assembly of the clutch and the transmission gear of the antenna transmission device according to the embodiment of the present invention;

Fig. 7 is a cross-sectional view of a position selection transmission assembly of an antenna transmission device according to an embodiment of the present invention;

Fig. 8 is an exploded structural diagram of a screw drive assembly of an antenna drive device according to an embodiment of the present invention.

Explanation of reference signs:

1. ESC controller; 2. Position selection transmission assembly; 3. Screw transmission assembly; 4. Pull rod; 21. Bushing; 22. Snap ring; 23. Spring; 24. Front cavity; 26. Position selection slide plate; 27. Transmission gear set; 28. Rear cavity; 29. Clutch; 31. Front screw fixing seat; 32. Transmission screw; 33. Stop sleeve; 34. Guide rod; 35. Pull rod connector; 36. Rear screw Fixed seat; 211, transmission input shaft sleeve; 212, position selection input shaft sleeve; 251, front position selection guide rail; 252, rear position selection guide rail; 261, position selection rack; 262, position selection boss; 263, right stop 264, the left stop surface; 270, the selection gear; 271, the transmission input gear; 272, the first left transmission gear; 273, the second left transmission gear; 274, the third left transmission gear; 275, the fourth left transmission Gear; 276, the first right transmission gear; 277, the second right transmission gear; 278, the third right transmission gear; 279, the fourth right transmission gear; 281, the right check groove; 282, the left check groove; 291, protruding feet ; 292, shaft body; 321, groove; 322, stop end.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.

It should be noted that when an element is referred to as being "fixed on", "disposed on", "fixed on" or "installed on" another element, it can be directly on the other element or there can also be an intervening element . When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. Furthermore, when one element is considered to be "transmission-connected" to another element, it is enough that the two can realize power transmission, and its specific implementation method can be realized in the prior art, so it is not redundant here. When a component is perpendicular or nearly perpendicular to another component, it means that the ideal state of the two is vertical, but due to the influence of manufacturing and assembly, there may be a certain vertical error. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the present invention is only for the purpose of describing specific embodiments, and is not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The "first" and "second" involved in the present invention do not represent a specific number and order, but are only used to distinguish names.

Referring to the accompanying

drawings

1, 2, 3 and 4, an embodiment of the present invention proposes an antenna transmission device, which includes an electric controller 1, a position selection transmission assembly 2, a screw transmission assembly 3, Pull rod 4.

The position selection transmission assembly 2 includes a shaft sleeve 21, a snap ring 22, a reset elastic member, a front cavity 24, a position selection guide rail, a position selection slide plate 26, a transmission gear set 27, a position selection gear 270, a transmission input gear 271, a rear Cavity 28, clutch 29. The position selection gear 270 has the same structure as the transmission input gear 271 .

The shaft sleeve 21 includes a transmission input shaft sleeve 211 and a position selection input shaft sleeve 212, and the transmission input shaft sleeve 211 and the position selection input shaft sleeve 212 have the same structure; The position guide rail 252; the position selection slide plate 26 includes a position selection rack 261, a position selection boss 262, a right stop surface 263, and a left stop surface 264; the transmission gear set 27 includes a plurality of transmission gears, respectively the first left Transmission gear 272, the second left transmission gear 273, the third left transmission gear 274, the fourth left transmission gear 275, the first right transmission gear 276, the second right transmission gear 277, the third right transmission gear 278, the fourth right transmission The gear 279 ; the rear cavity 28 includes a right check groove 281 and a left check groove 282 ; the clutch member 29 includes a protruding foot 291 and a shaft body 292 . The quantity of the clutch parts 29 is multiple groups.

The screw drive assembly 3 includes a front screw fixing seat 31 , a driving screw 32 , a stop sleeve 33 , a guide rod 34 , a pull rod connector 35 , and a rear screw fixing seat 36 . The driving screw 32 includes a groove 321 and a stop end 322 . The number of the drive screw 32, the stop sleeve 33, the guide rod 34, and the tie rod connector 35 is multiple groups.

The shaft body 292 of the clutch 29, the shaft body of the transmission input shaft sleeve 211, the shaft body of the position selection input shaft sleeve 212, the inner holes of each transmission gear, the inner hole of the position selection gear 270 and the inner hole of the transmission input gear 271 The holes are all spline structures, and the shaft body 292 of the clutch part 29 can slide smoothly in the inner hole of the transmission gear, and the shaft body of the transmission input shaft sleeve 211 is sleeved in the inner hole of the transmission input gear 271. The shaft body of the position input shaft sleeve 212 is sleeved in the inner hole of the position selection gear 270 .

The position selection motor (not shown in the figure) of the electric control controller 1 can output a rotary motion to the position selection gear 270 to drive the position selection slide plate 26 to move linearly. The clutch part 29 is ejected to realize the transmission connection between the clutch part 29 and the transmission screw 32, and the position selection of the transmission screw 32 is completed, and the transmission motor (not shown in the figure) of the electric regulation controller 1 can output the rotary motion to the transmission input gear 271 drives the transmission gear to rotate to drive the clutch 29 to rotate synchronously, and the rotation of the clutch 29 drives the transmission screw 32 to rotate to drive the phase shifter (not shown in the figure) for adjustment.

The rear part of the clutch part 29 is covered with a reset elastic part. Under the action of the reset elastic part, the clutch part 29 and the transmission screw 32 remain separated. Part, the clutch part 29 is ejected so that the protruding foot 291 of the clutch part 29 is inserted into the groove 321 of the drive screw 32 to achieve engagement. Separated from drive screw 32. Preferably, the return elastic member is a spring 23 .

Specifically, as shown in FIG. 5 , the transmission input bushing 211 is fitted with the transmission input gear 271 through a spline, and a snap ring 22 is installed at the tail of the transmission input bushing 211 for fixing. When the transmission input shaft sleeve 211 rotates, it can drive the corresponding transmission input gear 271 to rotate synchronously.

Similarly, the position selection input shaft sleeve 212 and the position selection gear 270 are splined, and a snap ring 22 is installed at the tail of the position selection input shaft sleeve 212 for fixing. When the position selection input shaft sleeve 212 rotates, it can drive the corresponding position selection gear 270 to rotate synchronously.

With reference to accompanying drawing 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, shown in Fig. 8, described position selection transmission assembly 2 comprises front cavity 24 and rear cavity 28, and described position selection gear 270, transmission input gear 271 and the transmission gear set 27 are installed inside the cavity formed by the front cavity 24 and the rear cavity 28. The clutch part 29 passes through the transmission shaft hole of the rear cavity 28 one by one, the inner holes of each gear of the transmission gear set 27, the shaft hole of the front cavity 24 and the spring 23 one by one, and a snap ring 22 is installed at the tail of the clutch part 29 to carry out Fixed, the shaft body 292 of the clutch 29 can slide smoothly in the gear inner hole in the transmission gear set 27 . When the ESC 1 transmits the rotational movement of the position selection motor to the position selection gear 270 through the position selection input bushing 212, the position selection gear 270 transmits the input rotational motion by meshing with the position selection rack 261 of the position selection slide plate 26. The motion is converted into linear motion along the front position selection guide rail 251 and the rear position selection guide rail 252. And the position selection slide plate 26 comprises at least one position selection boss 262, when the position selection boss 262 moves to the front of one of the clutch parts 29, the position selection boss 262 compresses the spring 23 to eject the clutch part 29, so that The protruding foot 291 of the clutch 29 is inserted into the groove 321 of the driving screw 32 , so as to realize the position selection of the driving screw 32 . When the position selection boss 262 leaves the clutch member 29 , under the force of the spring 23 , the protruding foot 291 of the clutch member 29 is separated from the groove 321 of the driving screw 32 . The position selection slide plate 26 continues to move, and the position selection of any transmission screw rod 32 can be realized.

Referring to accompanying

drawings

3, 4, 5, 6, 7, and 8, the ESC 1 transmits the rotational motion of the transmission motor to the transmission input gear 271 through the transmission input bushing 211, and the transmission input The rotation of the gear 271 drives the rotation of the entire transmission gear set 27 (272-279). Further, the shaft body 292 of the clutch member 29 is a spline structure, which can cooperate with the inner hole structure of the transmission gear in the transmission gear set 27 (272-279). Therefore, the rotation of the transmission gear of the transmission transmission gear set 27 (272-279) can drive the rotation of the matched clutch part 29. After the position selection action described above, the position selection slide plate 26 can eject the selected clutch part 29, so that the protruding foot 291 of the clutch part 29 is engaged with the groove 321 of the transmission screw 32, so that the clutch part 29 The rotational motion is transmitted to the drive screw 32 , thereby driving the drive screw 32 to rotate.

Referring to the accompanying drawings 1 and 8, the transmission screw 32 and the tie rod connector 35 are matched through a threaded screw connection, and the tie rod connector 35 is connected with the pull rod 4, and the helical movement of the drive screw 32 is converted into the pull rod connector 35 and the pull rod 4 move along the straight line of the guide rod 34. In addition, since the pull rod 4 and the phase shifter (not shown) are connected as one, the pull rod 4 can drive the phase shifter (not shown) to adjust accordingly.

With reference to accompanying drawing 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, shown in Fig. 8, described position selection slide plate 26 two ends are respectively provided with right stop surface 263 and left stop surface 264, and the rear cavity 28 The two ends are respectively provided with a right check groove 281 and a left check groove 282 for calibration of position selection. Specifically, when the position selection input shaft sleeve 212 rotates in the forward direction, it drives the position selection gear 270 to rotate in the forward direction. The guiding effect of the position guide rail 252 drives the position selection slide plate 26 to translate to the right. When the right stop surface 263 of the position selection slide plate 26 moves to the position selection right stop groove 281 of the rear cavity 28, it stops moving. This is the calibration of the right end of the position selection transmission assembly 2 point. When the position selection input shaft sleeve 212 reversely rotates, it drives the position selection gear 270 to rotate in reverse. The guiding effect of the guide drives the position selection slide plate 26 to translate to the left, and when the position selection slide plate 26 left stop surface 264 moves to the position selection left stop groove 282 of the rear cavity 28, it stops moving. This is the position selection transmission assembly 2 left end calibration points. At this point, the position selection calibration of the position selection transmission assembly 2 has been completed. After calibration, the position selection gear 270 can continue to rotate forward or reverse according to the parameters set by the ESC 1, so that the position selection boss 262 of the position selection slide plate 26 moves to the front of one of the clutch parts 29, and the position selection boss 262 The compression spring 23 pushes out the clutch part 29, so that the protruding foot 291 of the clutch part 29 is engaged with the groove 321 of the drive screw 32, and the position selection of the drive screw 32 is completed. According to different preset parameters of the ESC controller 1 , the position of any drive screw 32 can be selected.

Further, referring to accompanying

drawings

3, 4, 5, 6, 7, and 8, when the transmission input sleeve 211 rotates, it drives the rotation of the transmission input gear 271, and the rotation of the transmission input gear 271 drives the entire transmission The rotation of the gear set 27.

Specifically, the plurality of transmission gears are arranged side by side, and two adjacent transmission gears are engaged with each other. When the transmission input shaft sleeve 211 rotates in the forward direction, it drives the transmission input gear 271 to rotate in the forward direction, and the forward rotation of the transmission input gear 271 drives the first left transmission gear 272 and the second right transmission gear 277 meshing with it on both sides to reverse. The reverse rotation of the first left transmission gear 272 drives the second left transmission gear 273 engaged with it to rotate forward; the reverse rotation of the first right transmission gear 276 drives the second right transmission gear 277 engaged with it to rotate forward The forward rotation of the second left transmission gear 273 drives the third left transmission gear 274 engaged with it to rotate reversely; the forward rotation of the second right transmission gear 277 drives the third right transmission gear 278 engaged with it to rotate reversely, so analogy.

In the same way, when the transmission input shaft sleeve 211 reverses, it drives the transmission input gear 271 to rotate in the reverse direction, and the reverse rotation of the transmission input gear 271 drives the first left transmission gear 272 and the second right transmission gear on both sides respectively. The gear 277 rotates in the forward direction, and the forward rotation of the first left transmission gear 272 drives the second left transmission gear 273 engaged with it to rotate in reverse; the forward rotation of the first right transmission gear 276 drives the second right transmission gear 277 engaged with it. Reverse rotation; the reverse rotation of the second left transmission gear 273 drives the third left transmission gear 274 engaged with it to rotate forward; the reverse rotation of the second right transmission gear 277 drives the third right transmission gear 278 engaged with it to rotate forward turn, and so on.

Further, one end of the drive screw 32 is provided with a stop end 322, and the other end is equipped with a stop sleeve 33, and the tie rod connector 35 is sleeved on the drive screw 32 and arranged between the stop end 322 and the stop sleeve. 33, the drive screw 32 is provided with a guide rod 34 in parallel, the tie rod connector 35 is provided with a guide hole corresponding to the guide rod 34, and the stop end 322 and the stop sleeve 33 are used to adjust the drive screw. 32 Calibration of the movement stroke. Specifically, since the shaft body 292 of the clutch part 29 and the inner hole of each transmission gear are in a spline structure, the rotation of the transmission gear drives the corresponding clutch part 29 to rotate, and the shaft body 292 of the clutch part 29 can be in the inner hole of the gear. Smooth sliding, so when the position selection boss 262 of the position selection slide plate 26 compresses the spring 23 to eject a certain clutch 29, the protruding foot 291 of the clutch 29 is inserted into the groove 321 of the transmission screw 32, thereby realizing the clutch. The rotation of 29 drives the rotation of the corresponding drive screw 32. The rotation of the transmission screw 32 drives the tie rod connecting piece 35 threadedly connected with it to move forward (or backward) along the guide bar 34. , the tie rod connector 35 stops moving, which is the front calibration point of this road transmission; Post-calibration point of the drive.

Further, referring to accompanying

drawings

3, 4, 5, 6, 7 and 8, the transmission gear set 27 (272-279), the position selection gear 270 and the transmission input gear 271 are installed and fixed in the front cavity 24 and the rear cavity body 28, adopt fasteners to assemble the front cavity body 24 and the rear cavity body 28 into one. Further, after the clutch part 29 passes through the transmission shaft hole of the rear cavity 28, each transmission gear inner hole of the transmission gear set 27 (272-279), the shaft hole of the front cavity 24 and the spring 23, after the clutch part 29 The rear part is fixed with a snap ring 22; the transmission input shaft sleeve 211 passes through the input shaft hole of the front cavity 24, the inner hole of the transmission input gear 271 and the input shaft hole of the rear cavity 28 in turn, and is placed in the transmission input shaft sleeve 211. The tail is fixed with a snap ring 22; the position selection input shaft sleeve 212 passes through the position selection shaft hole of the front cavity 24, the inner hole of the position selection gear 270 and the position selection shaft hole of the rear cavity 28 successively, and is input at the position selection. The tail of the shaft sleeve 212 is fixed with a snap ring 22 . Further, the transmission input gear 271 meshes with the transmission gears on both sides. And the shaft body 292 of clutch 29, the shaft body of transmission input shaft sleeve 211 and the shaft body of position selection input shaft sleeve 212 and the gear inner hole are all spline fits, and the shaft body of transmission input shaft sleeve 211 and position selection input shaft sleeve 212 The rotations drive the rotation of the position selection gear 270 and the transmission input gear 271 respectively;

Referring to the accompanying drawing 8, the transmission screw 32 and the tie rod connector 35 are matched by a threaded screw connection, the tie rod connector 35 is connected with the pull rod 4, and the helical movement of the drive screw 32 is converted into the tie rod connector 35 And pull rod 4 moves along the straight line of guide bar 34. The drive screw 32 is installed between the front screw holder 31 and the rear screw holder 36, and the groove 321 of the drive screw 32 is in one-to-one correspondence with the protruding feet 291 of the clutch part 29, when the protruding feet 291 of the clutch part 29 and the drive screw 32 When the groove 321 is engaged, the rotation of the clutch 29 can drive the rotation of the transmission screw 32, so that the pull rod connector 35 drives the pull rod 4 to move forward (or backward) along the guide rod 34 to complete the phase shifter. (not shown) adjustment.

The present invention is simple in structure, easy to manufacture, and can increase the quantity of transmission gear, clutch 29, spring 23, transmission screw 32, stop sleeve 33, guide rod 34, pull rod connector 35 and pull rod 4 according to the actual situation. Realize the control of more groups of phase shifters (not shown), and the product has a wide range of applications.

The technical features of the above embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered to be within the range described in this specification.

The above-mentioned embodiments only express the specific implementation manner of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection of the present invention.

Claims

An antenna transmission device, characterized in that it includes an electric controller, a position selection transmission component, and a screw transmission component; the position selection transmission component includes a position selection gear, a transmission input gear, a position selection slide plate, a transmission gear set and multiple A clutch, the screw drive assembly includes multiple sets of drive screws, and the drive gear set includes multiple drive gears;

The position selection motor of the electric control controller can output rotary motion to the position selection gear to drive the position selection slide to move linearly. When the position selection slide moves to different positions, it can eject the clutch at the corresponding position to realize the connection between the clutch and the transmission screw. The transmission connection completes the position selection of the transmission screw. The transmission motor of the ESC can output rotary motion to the transmission input gear to drive the transmission gear to rotate so as to drive the clutch to rotate synchronously. The rotation of the clutch drives the transmission screw to rotate to drive the moving The phaser is adjusted.
The antenna transmission device according to claim 1, characterized in that, the rear part of the clutch part is covered with a reset elastic part, under the action of the reset elastic part, the clutch part and the transmission screw remain separated, and when the position selection slide plate When moving to the front of a certain clutch part, compress and reset the elastic part, and push out the clutch part so that the protruding feet of the clutch part are inserted into the groove of the transmission screw to achieve engagement. Next, the clutch part is separated from the transmission screw.
The antenna transmission device according to claim 2, wherein the position selection transmission assembly includes a front cavity and a rear cavity, and the position selection gear, the transmission input gear and the transmission gear set are installed in the front cavity And inside the cavity formed by the rear cavity.
The antenna transmission device according to claim 3, characterized in that, the two ends of the position selection slide plate are respectively provided with a right stop surface and a left stop surface, and the two ends of the rear cavity are respectively provided with a right stop groove and a left stop surface. The left check groove is used for the calibration of the selection position.
The antenna transmission device according to claim 1, wherein the screw transmission assembly further includes a stop sleeve, a guide rod, and a tie rod connector, one end of the transmission screw is provided with a stop end, and the other end is installed There is a stop sleeve, the tie rod connecting piece is sleeved on the transmission screw and is arranged between the stop end and the stop sleeve, a guide rod is arranged parallel to the outside of the drive screw, and the tie rod connector is provided with a guide rod The corresponding guide hole, the stop end and the stop sleeve are used to calibrate the movement stroke of the drive screw.
The antenna transmission device according to claim 5, wherein the transmission device further comprises a pull rod, and the transmission screw and the pull rod connecting piece cooperate through a threaded screw connection, and the pull rod connecting piece is connected with the pull rod, The helical motion of the drive screw is converted into the linear motion of the tie rod connector and the pull rod along the guide rod.
The antenna transmission device according to claim 3, wherein the plurality of transmission gears are arranged side by side, and two adjacent transmission gears are engaged with each other.
The antenna transmission device according to claim 7, characterized in that, after the clutch member passes through the transmission shaft hole of the rear cavity, the inner hole of the transmission gear, the shaft hole of the front cavity and the reset elastic member in sequence, the clutch The tail of the part is fixed with a snap ring; the transmission input shaft sleeve passes through the input shaft hole of the front cavity, the inner hole of the transmission input gear and the input shaft hole of the rear cavity in turn, and is installed on the tail of the transmission input shaft sleeve. The snap ring is fixed; the position selection input shaft sleeve passes through the position selection shaft hole of the front cavity, the inner hole of the position selection gear and the position selection shaft hole of the rear cavity in turn, and is installed at the tail of the position selection input shaft sleeve The snap ring is fixed.
The antenna transmission device according to claim 2, wherein the position selection slide plate includes at least one position selection boss, and the position selection boss is used to compress and reset the elastic member to push out the clutch member, the The position selection transmission assembly also includes the front position selection guide rail and the rear position selection guide rail. When the ESC controller transmits the rotation motion of the position selection motor to the position selection gear through the position selection input bushing, the position selection gear passes through the position selection slide plate. The meshing of the position selection racks converts the input rotary motion into the linear motion of the position selection slide plate along the front position selection guide rail and the rear position selection guide rail.
An antenna transmission device according to claims 1-9, characterized in that the shaft body of the clutch member, the shaft body of the transmission input bushing, the shaft body of the position selection input bushing, and the inner holes of each transmission gear 1. The inner hole of the position selection gear and the inner hole of the transmission input gear are both spline structures, and the shaft body of the clutch can slide smoothly in the inner hole of the transmission gear, and the shaft body of the transmission input sleeve is sleeved on the transmission input shaft. In the inner hole of the gear, the shaft body of the position selection input shaft sleeve is sleeved in the inner hole of the position selection gear.