Transmission device and high-power short-wave tangent switch

Abstract

The invention discloses a transmission device and a high-power short-wave tangent switch, the device comprises a power device and a rotating shaft, and the power device drives the rotating shaft to rotate; wherein the power device comprises an electric driving device, a first one-way bearing, a worm, a turbine, a crank handle, a second one-way bearing and a connecting shaft; one end of the worm penetrates through an inner ring of a one-way bearing and is coaxially connected with a first one-way bearing, and an outer ring of the first one-way bearing is coaxially connected with an output shaft of the electric driving device; the other end of the worm penetrates through the inner ring of the second one-way bearing and is coaxially connected with the second one-way bearing; the connecting shaft is coaxially connected with the outer ring of the second one-way bearing, and the crank handle is connected with the connecting shaft; the rotating shaft and the turbine are concentrically assembled; and the first one-way bearing and the second one-way bearing are reversely mounted. According to the transmission device and the high-power short-wave tangent switch disclosed by the invention, the use reliability and safety of the tangent switch can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of antenna switches, and specifically to a transmission device and a high-power short-wave tangent switch. Background Art

[0002] The signal coverage area of radio broadcasting is achieved by covering the area with a radio antenna beam. In order to increase the near and medium-range coverage of short-wave radio signals and reduce the coverage blind area in the near area caused by the inability to cover in the near area during sky-wave propagation. Usually, a switching switch is configured on the feeder transmission line path at the low-frequency end to change the beam phase of some antenna elements. Using the principle of phased array spatial synthesis, the antenna beam is controlled to point upwards, and a beam with a higher elevation angle can be formed to achieve the coverage of the area closer to the antenna position by the radio station signal. During the operation of the short-wave radio system, the terrain and landforms in different signal emission directions are different, and the required beam elevation angles to be adjusted are not the same. In order to switch different beam elevation angles, it is necessary to control different switching switches through a transmission device.

[0003] The transmission device controls the transmission of radio frequency signals to different antenna elements by the contact of a rotating arm connected to the output shaft with contact blocks at different positions, thereby realizing different working modes of the antenna. The contact reed on the rotating arm and the contact block can only rotate and contact along a fixed direction, otherwise the reed will break. In order to prevent the rotating arm from flipping and breaking the reed due to power failure or other emergencies, the transmission device has a manual mode function in case of emergency, and at the same time has the functions of one-way and stopping at any angle and reliable self-locking.

[0004] The prior art only has an automatic mode. If the rotating arm rotates in the reverse direction due to improper operation during the debugging stage, there is a risk of breaking the reed on the program conversion switch. And in the prior art, in order to ensure that the rotating arm stops at any angle and reliably maintains self-locking, it is realized by a brake at the rear end of the motor, and the reliability is not high.

[0005] In the prior art, the invention patent with the patent publication number CN112659382A discloses a drilling machine for civil engineering. When the forward and reverse motor drives the worm to rotate in the reverse direction, it drives the first turbine to rotate in the reverse direction, so that the threaded sleeve rises. During the rising process of the threaded sleeve, since the second turbine is connected to the transmission rod through a one-way bearing, the transmission rod does not rotate when the worm drives the threaded sleeve to move downward. Synchronously, when the worm drives the threaded sleeve to move upward, the second turbine drives the one-way bearing and the transmission rod to rotate, and at the same time drives the first right-angle gear to rotate. The prior art only uses motor drive and does not have a manual mode. Summary of the Invention

[0006] The technical problem to be solved by the present invention is as follows: to solve the problems in the prior art that the transmission device of the changeover switch only has an automatic mode, does not have the functions of one-way transmission and reverse idling, and the reliability of the locking method is not high.

[0007] To solve the above technical problems, the present invention provides the following technical solutions:

[0008] A transmission device includes a power device 210 and a rotating shaft 220. The power device 210 drives the rotating shaft 220 to rotate. Among them, the power device 210 includes an electric drive device 211, a first one-way bearing 212, a worm 213, a turbine 214, a hand crank 215, a second one-way bearing 216 and a connecting shaft 217. One end of the worm 213 passes through the inner ring of the one-way bearing 212 and is coaxially connected to the first one-way bearing 212. The outer ring of the first one-way bearing 212 is coaxially connected to the output shaft of the electric drive device 211. The other end of the worm 213 passes through the inner ring of the second one-way bearing 216 and is coaxially connected to the second one-way bearing 216. The connecting shaft 217 is coaxially connected to the outer ring of the second one-way bearing 216, and the hand crank 215 is connected to the connecting shaft 217. The rotating shaft 220 is concentrically assembled with the turbine 214. And the first one-way bearing 212 and the second one-way bearing 216 are installed in the reverse direction.

[0009] Advantages: It has a dual power input function. The automatic mode and the manual mode are respectively set at both ends, and the functions are independent and do not affect each other. For each power input, it has a one-way transmission function, can achieve mechanical self-locking and reverse idling at any position, and improves the reliability of the switch.

[0010] In an embodiment of the present invention, a first bevel gear 2151 is provided at the end of the hand crank 215, a second bevel gear is provided on the connecting shaft 217, and the first bevel gear 2151 meshes with the second bevel gear;

[0011] When the hand crank 215 is rotated, the first bevel gear 2151 meshes with the second bevel gear, so that the connecting shaft 217 drives the outer ring of the second one-way bearing 216 to rotate coaxially, and at the same time drives the inner ring of the second one-way bearing 216 and the worm 213 to rotate, so that the worm 213 meshes with the turbine 214 and drives the rotating shaft 220 to rotate;

[0012] And when the hand crank 215 is rotated in the reverse direction, the outer ring of the second one-way bearing 216 is in a locked state relative to the inner ring of the second one-way bearing 216 and cannot drive the worm 213 to rotate.

[0013] In an embodiment of the present invention, the electric drive device 211 includes a motor 2111 and a speed reducer 2112 connected to the output end of the motor 2111; the outer ring of the first one-way bearing 212 is coaxially connected to the output shaft of the speed reducer 2112;

[0014] Start the motor 2111, the motor 2111 drives the output shaft of the speed reducer 2112 and the outer ring of the first one-way bearing 212 to rotate coaxially, and at the same time drives the inner ring of the first one-way bearing 212 and the worm 213 to rotate, so that the worm 213 and the turbine 214 are engaged to drive the rotating shaft 220 to rotate;

[0015] And when the output shaft of the motor 2111 rotates in the reverse direction, the outer ring of the first one-way bearing 212 is in a locked state relative to the inner ring of the first one-way bearing 212 and cannot drive the worm 213 to rotate.

[0016] In an embodiment of the present invention, when the motor 2111 drives the worm 213 to rotate, the worm 213 located in the second one-way bearing 216 drives the inner ring of the second one-way bearing 216 to rotate idly;

[0017] When the hand crank 215 drives the worm 213 to rotate, the worm 213 located in the first one-way bearing 212 drives the inner ring of the first one-way bearing 212 to rotate idly;

[0018] The direction in which the hand crank 215 drives the rotating shaft 220 to rotate is the same as the direction in which the electric drive device 211 drives the rotating shaft 220 to rotate.

[0019] The present invention also provides a high-power short-wave tangent switch, which includes the above-mentioned transmission device, and also includes a frame 100, a rotary switching contact device 2340, a fixed contact device 300 and a feeder device 400;

[0020] The rotary switching contact device 2340 is connected to the rotating shaft 220 and is arranged around the rotating shaft 220 as the rotation center; the power device 210 drives the rotating shaft 220 to rotate, and synchronously drives the rotary switching contact device 2340 to rotate in the frame 100, the feeder device 400 is connected to the fixed contact device 300; and the fixed contact device 300 is arranged around the rotary switching contact device 2340 in the frame 100. When the rotary switching contact device 2340 rotates, it is connected to the fixed contact device 300 at different positions, realizing the switching of the feeder system between different phases.

[0021] Advantages: Through the transmission device and the rotary switching contact device, the feeder system can be switched between different phases. The two radio frequency signals passing through the switching switch complete the phase change during the transmission process, thereby raising the antenna radiation elevation angle and achieving the "blind spot filling" effect for short and medium ranges. The switching switch changes the phase of the radio frequency signal differently in different working modes, and the elevation of the antenna radiation elevation angle also changes accordingly, so as to achieve the "blind spot filling" effect under different terrains and landforms.

[0022] In an embodiment of the present invention, the rotary switching contact device 2340 includes a turntable 230 and an angle detection device 240; the turntable 230 is installed on the rotary shaft 220, and the angle detection device 240 is fixed at the end of the rotary shaft 220; the power device 210 drives the rotary shaft 220 to rotate, and at the same time drives the turntable 230 and the angle detection device 240 to rotate in the same direction, and the angle detection device 240 feeds back the rotation angle information of the rotary shaft 220.

[0023] In an embodiment of the present invention, the turntable 230 has a regular pentagon structure and is provided in a split form, including a first turntable 231 and a second turntable 232; each turntable includes an insulating dielectric block 2331, a connecting plate 2332, a mounting block 2333 and a contact spring piece 2334;

[0024] The insulating dielectric blocks 2331 of the two turntables are symmetrically arranged;

[0025] The "L"-shaped connecting plate 2332 of each turntable is fixed on the outer edge of the insulating dielectric block 2331 and wraps one corner of the insulating dielectric block 2331; the first ends of the connecting plates 2332 of the two turntables are arranged at a certain angle with the axis hole of the turntable 230 as the origin.

[0026] Installation blocks 2333 are arranged at both ends of each connecting plate 2332, and the contact spring pieces 2334 are detachably connected to the installation blocks 2333, and the contact spring pieces 2334 on the installation blocks 2333 are arranged at a certain angle.

[0027] When the turntable 230 rotates, the center of gravity of the turntable 230 coincides with the center of gravity of the rotary shaft 220, and at each rotation angle, the torque on the rotary shaft 220 is consistent.

[0028] In an embodiment of the present invention, the fixed contact device 300 includes a first fixed contact device 310, a second fixed contact device 320, a third fixed contact device 330, a fourth fixed contact device 340, and a fifth fixed contact device 350; the first fixed contact device 310 to the fifth fixed contact device 350 are located on a circumference centered on the rotation axis 220, with a radius equal to the maximum distance from the end of the contact reed 2334 to the rotation axis 220 minus the compression amount of the contact reed 2334, and are evenly distributed; and the fourth fixed contact device 340 and the fifth fixed contact device 350 are connected by a shorting plate 3450.

[0029] In an embodiment of the present invention, each fixed contact device 300 includes an electrode contact block 312 and a porcelain rod 303; the electrode contact block 312 includes a fixed clamp 301 and an arc block 302; a non-contact surface A of the fixed clamp 301 protrudes to form a lug 3011, and at the same time, a straight-through semi-cylindrical groove 3012 is provided on the non-contact surface A of the fixed clamp 301, and the straight-through semi-cylindrical groove 3012 passes through the lug 3011; the arc block 302 is fixedly located on the non-contact surface A of the fixed clamp 301, and a semi-circular convex groove 3021 is provided on the arc block 302, and the semi-circular convex groove 3021 and the straight-through semi-cylindrical groove 3012 overlap to form a porcelain rod through-hole 3123, and the porcelain rod 303 passes through the porcelain rod through-hole 3123 and is connected to the frame 100.

[0030] In an embodiment of the present invention, the feeder device 400 includes a feeder input interface 410, a first feeder 420, a second feeder 430, and a feeder output interface 440;

[0031] Among them, the first fixed contact device 310 is connected to the feeder input interface 410, the second fixed contact device 320 is connected to one end of the first feeder 420, the third fixed contact device 330 is connected to the other end of the first feeder 420 and the second feeder 430, the fourth fixed contact device 340 is connected to the second feeder 430, and the fifth fixed contact device 350 is connected to the feeder output interface 440.

[0032] In an embodiment of the present invention, the high-power short-wave tangent switch further includes a power divider 500, a first antenna unit 610, a second antenna unit 620, a third antenna unit 630, and a fourth antenna unit 640; among them, the feeder input interfaces 410 in two groups of feeder devices 400 are connected to the power divider 500, and the first antenna unit 610 and the second antenna unit 620 are connected; the third antenna unit 630 and the fourth antenna unit 640 are respectively connected to the feeder output interfaces 440 in two groups of feeder devices 400;

[0033] The radio frequency signal is divided into two paths by the power splitter 500. One path of the radio frequency signal is directly transmitted to the first antenna unit 610 and the second antenna unit 620; the other path of the radio frequency signal is transmitted to the third antenna unit 630 and the fourth antenna unit 640 through the switching switch.

[0034] In an embodiment of the present invention, the high-power short-wave tangent switch includes four working modes.

[0035] The first working mode: The feeder input interface 410 receives a radio frequency signal, and the radio frequency signal is transmitted along the connecting plate 2332 on the second turntable 232 to the first feeder 420, and then transmitted to the second feeder 430 through the first feeder 420, and then transmitted to the feeder output interface 440 through the shorting plate 3450 and the connecting plate 2332 on the first turntable 231, thereby affecting the corresponding antenna unit and realizing the first beam phase change.

[0036] The second working mode: The control system sends an instruction to the rotary switching contact device 2340 to drive the rotary shaft 220 to rotate counterclockwise. The angle detection device 240 feeds back the rotation angle of the rotary shaft 220 to the control system, and stops rotating when the rotary shaft 220 rotates to a specified position; the feeder input interface 410 receives a radio frequency signal, and the radio frequency signal is transmitted along the connecting plate 2332 on the first turntable 231 to the feeder output interface 440, and then output to the corresponding antenna unit to realize the second beam phase change.

[0037] The third working mode: The control system sends an instruction to the rotary switching contact device 2340 to drive the rotary shaft 220 to rotate counterclockwise. The angle detection device 240 feeds back the rotation angle of the rotary shaft 220 to the control system, and stops rotating when the rotary shaft 220 rotates to a specified position; the feeder input interface 410 receives a radio frequency signal, and the radio frequency signal is transmitted along the connecting plate 2332 on the first turntable 231 to the first feeder 420, and then transmitted to the feeder output interface 440 through the first feeder 420, the connecting plate 2332 on the second turntable 232 and the shorting plate 3450, and then output to the corresponding antenna unit to realize the third beam phase change.

[0038] The fourth working mode: The feeder input interface 410 receives a radio frequency signal, and the fixed contact device 300 connected to the feeder input interface 410 is not connected to the rotary switching contact device 2340, and the transmission link is in a disconnected state. At this time, the radio frequency signal cannot be transmitted to the corresponding antenna unit.

[0039] Compared with the prior art, the beneficial effects of the present invention are:

[0040] It can achieve multiple switching modes and has the advantages of simple structure, smooth switching action, reliable structure, and convenient maintenance.

[0041] The prior art only has an automatic mode, and this transmission device is provided with a manual mode to ensure emergency operation when the motor or reducer fails.

[0042] It can be driven unidirectionally and rotate idly in reverse, avoiding damage to the reed on the changeover switch when the rotation direction reverses due to improper operation during the debugging stage.

[0043] The manual mode and the automatic mode are completely independent of each other and do not affect each other. That is, regardless of whether the manual input end rotates clockwise or counterclockwise, the automatic input end rotates idly, increasing the comfort of the human body in the manual mode.

[0044] Compared with using a brake at the rear end of the motor to lock, this transmission device can achieve mechanical self-locking at any angle and has high reliability.

[0045] It can achieve multiple switching modes and has the advantages of simple structure, smooth switching action, reliable structure, and convenient maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of a transmission device according to an embodiment of the present invention.

[0047] Figure 2 It is a schematic diagram of the transmission device from another angle according to an embodiment of the present invention.

[0048] Figure 3 It is a schematic diagram of a high-power short-wave tangent switch according to an embodiment of the present invention.

[0049] Figure 4 and Figure 5 It is a schematic diagram of the tangent switch from different angles according to an embodiment of the present invention.

[0050] Figures 6 to 8 It is a schematic diagram of a turntable according to an embodiment of the present invention.

[0051] Figure 9 and Figure 10 It is a schematic diagram of a fixed contact device according to an embodiment of the present invention.

[0052] Figure 11 It is a schematic diagram of an antenna unit according to an embodiment of the present invention.

[0053] Figures 12 to 15 It is a schematic diagram of four working modes of a changeover switch according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0054] To facilitate the understanding of the technical solution of the present invention by those skilled in the art, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings of the specification.

[0055] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0056] Embodiment 1

[0057] Please refer to Figure 1 and Figure 2 As shown, the present invention provides a transmission device, including a power device 210 and a rotating shaft 220, and the power device 210 drives the rotating shaft 220 to rotate. Among them, the power device 210 includes an electric drive device 211, a first one-way bearing 212, a worm 213, a turbine 214, a hand crank 215, a second one-way bearing 216 and a connecting shaft 217. One end of the worm 213 passes through the inner ring of a one-way bearing 212 and is coaxially connected to the first one-way bearing 212, and the outer ring of the first one-way bearing 212 is coaxially connected to the output shaft of the electric drive device 211; the other end of the worm 213 passes through the inner ring of the second one-way bearing 216 and is coaxially connected to the second one-way bearing 216; the connecting shaft 217 is coaxially connected to the outer ring of the second one-way bearing 216, and the hand crank 215 is connected to the connecting shaft 217; the rotating shaft 220 is concentrically assembled with the turbine 214, and the first one-way bearing 212 and the second one-way bearing 216 are installed in opposite directions.

[0058] Please refer to Figure 1 and Figure 2 As shown, in an embodiment of the present invention, a first bevel gear 2151 is provided at the end of the hand crank 215, and a second bevel gear is provided on the connecting shaft 217, and the first bevel gear 2151 meshes with the second bevel gear. When the hand crank 215 is rotated, the first bevel gear 2151 meshes with the second bevel gear, so that the connecting shaft 217 drives the outer ring of the second one-way bearing 216 to rotate coaxially, and at the same time drives the inner ring of the second one-way bearing 216 and the worm 213 to rotate, so that the worm 213 and the turbine 214 mesh to drive the rotating shaft 220 to rotate. And when the hand crank 215 is rotated in the reverse direction, the outer ring of the second one-way bearing 216 is in a locked state relative to the inner ring of the second one-way bearing 216 and cannot drive the worm 213 to rotate. When the hand crank 215 drives the worm 213 to rotate, the worm 213 located in the first one-way bearing 212 drives the inner ring of the first one-way bearing 212 to rotate idly.

[0059] The electric drive device 211 includes a motor 2111 and a speed reducer 2112 connected to the output end of the motor 2111. The outer ring of the first one-way bearing 212 is coaxially connected to the output shaft of the speed reducer 2112. When the motor 2111 is started, the motor 2111 drives the output shaft of the speed reducer 2112 and the outer ring of the first one-way bearing 212 to rotate coaxially, and at the same time drives the inner ring of the first one-way bearing 212 and the worm 213 to rotate, so that the worm 213 and the turbine 214 are engaged to drive the rotating shaft 220 to rotate. When the output shaft of the motor 2111 rotates in the reverse direction, the outer ring of the first one-way bearing 212 is in a locked state relative to the inner ring of the first one-way bearing 212 and cannot drive the worm 213 to rotate. When the motor 2111 drives the worm 213 to rotate, the worm 213 located in the second one-way bearing 216 drives the inner ring of the second one-way bearing 216 to rotate idly.

[0060] The direction in which the hand crank 215 drives the rotating shaft 220 to rotate is the same as the direction in which the electric drive device 211 drives the rotating shaft 220 to rotate.

[0061] Embodiment 2

[0062] Please refer to Figures 1 to 3 As shown in the figure, the present invention also provides a high-power short-wave tangent switch, which includes Embodiment 1, and also includes a frame 100, a rotary switching contact device 2340, a fixed contact device 300 and a feeder device 400. The rotary switching contact device 2340 is connected to the rotating shaft 220 and is arranged around the rotating shaft 220 as the rotation center. The power device 210 drives the rotating shaft 220 to rotate, and synchronously drives the rotary switching contact device 2340 to rotate in the frame 100. The feeder device 400 is connected to the fixed contact device 300, and the fixed contact device 300 is arranged around the rotary switching contact device 2340 in the frame 100. When the rotary switching contact device 2340 rotates, it is connected to the fixed contact device 300 at different positions, so as to realize the switching of the feeder system between different phases.

[0063] Please refer to Figures 1 to 8As shown, in an embodiment of the present invention, the rotary switching contact device 2340 includes a turntable 230 and an angle detection device 240. The power device 210 is fixedly located outside the frame 100, and the rotating shaft 220 is located inside the frame 100. The turntable 230 is mounted on the rotating shaft 220, and the angle detection device 240 is fixedly located at the end of the rotating shaft 220. The power device 210 drives the rotating shaft 220 to rotate, and at the same time drives the turntable 230 and the angle detection device 240 to rotate in the same direction. The angle detection device 240 feeds back the rotation angle information of the rotating shaft 220. In this embodiment, two sets of turntables 230 are located on the rotating shaft 220 and have a certain spacing. Among them, the hand crank 215, the second one-way bearing 216, and the connecting shaft 217 can be manually intervened in the event of a failure or power outage of the servo system, and the angle detection device 240 is an encoder.

[0064] The turntable 230 is a regular pentagon structure and is provided in a split form, including a first turntable 231 and a second turntable 232. Each turntable includes an insulating dielectric block 2331, a connecting plate 2332, a mounting block 2333, and a contact spring piece 2334. The insulating dielectric blocks 2331 of the two turntables are symmetrically arranged, and the two insulating dielectric blocks 2331 are spliced to form a regular pentagon, and the rotating shaft 220 passes through the center of the regular pentagon. Specifically, the material of the two insulating dielectric blocks 2331 is epoxy glass cloth. The "L"-shaped connecting plate 2332 of each turntable is fixedly located on the outer edge of the insulating dielectric block 2331 and wraps one corner of the insulating dielectric block 2331. The first ends of the connecting plates 2332 of the two turntables are arranged at a certain angle with the shaft hole of the turntable 230 as the origin. In this embodiment, the angle is 144°.

[0065] Mounting blocks 2333 are provided at both ends of each connecting plate 2332. The contact spring pieces 2334 are detachably connected to the mounting blocks 2333, and the contact spring pieces 2334 on the mounting blocks 2333 are arranged at a certain angle. In this embodiment, the angle between the contact spring pieces 2334 on two adjacent mounting blocks 2333 is 72°. Specifically, the materials of the connecting plate 2332 and the mounting block 2333 are brass, which has good electrical conductivity. The contact spring piece 2334 is formed by bending beryllium bronze, and the end of the contact spring piece 2334 is designed into a finger-like structure, which can ensure the smoothness of the switching action. Two sets of mounting blocks 2333 are provided at both ends of each connecting plate 2332, so that the contact spring pieces 2334 are mounted in a double layer, which can ensure good contact between the contact spring pieces 2334 and the fixed contact device 300. Through the above settings, when the turntable 230 rotates, the center of gravity of the turntable 230 coincides with the center of gravity of the rotating shaft 220, and at each rotation angle, the torque on the rotating shaft 220 is consistent, ensuring the smoothness of the switching action.

[0066] Please refer to Figures 1 to Figure 10As shown in the figure, in an embodiment of the present invention, the fixed contact device 300 includes a first fixed contact device 310, a second fixed contact device 320, a third fixed contact device 330, a fourth fixed contact device 340, and a fifth fixed contact device 350. The first fixed contact device 310 to the fifth fixed contact device 350 are located on a circumference centered on the rotation axis 220, with a radius R equal to the maximum distance from the end of the contact reed 2334 to the rotation axis 220 minus the compression amount of the contact reed 2334, and are evenly distributed. And the fourth fixed contact device 340 and the fifth fixed contact device 350 are connected by a shorting plate 3450. Among them, the compression amount of the contact reed 2334 is 3 mm, and the compression amount can be adaptively adjusted according to the change switches of different sizes. Similarly, the bending directions of the ends of multiple contact reeds 2334 are the same, and the ends of multiple contact reeds 2334 are all on the circumference. In this embodiment, on the rotation axis 220, two sets of turntables 230 are provided, and each set of turntables 230 is equipped with a set of fixed contact devices 300 and feeder devices 400, forming two change switches.

[0067] Each fixed contact device 300 includes an electrode contact block 312 and a porcelain rod 303. The electrode contact block 312 includes a fixed clamp 301 and an arc block 302. The non-contact surface A of the fixed clamp 301 protrudes to form a lug 3011. At the same time, a straight-through semi-cylindrical groove 3012 is also provided on the non-contact surface A of the fixed clamp 301, and the straight-through semi-cylindrical groove 3012 passes through the lug 3011. The arc block 302 is fixedly located on the non-contact surface A of the fixed clamp 301, and a semi-circular convex groove 3021 is provided on the arc block 302. The semi-circular convex groove 3021 and the straight-through semi-cylindrical groove 3012 overlap to form a porcelain rod through hole 3123. After the porcelain rod 303 passes through the porcelain rod through hole 3123, it is connected to the frame 100. The contact surface B of the fixed clamp 301 faces the contact reed 2334, and the contact surface B of the fixed clamp 301 is arranged in an arc shape to further ensure smooth switching action.

[0068] The arc block 302 is provided with a mounting hole 3022, and through the mounting hole 3022, the fixed contact device 300 is detachably connected to the feeder device 400. The feeder device 400 includes a feeder input interface 410, a first feeder 420, a second feeder 430, and a feeder output interface 440. Among them, the first fixed contact device 310 is connected to the feeder input interface 410, the second fixed contact device 320 is connected to one end of the first feeder 420, the third fixed contact device 330 is connected to the other end of the first feeder 420 and the second feeder 430, the fourth fixed contact device 340 is connected to the second feeder 430, and the fifth fixed contact device 350 is connected to the feeder output interface 440. Among them, the first feeder 420 and the second feeder 430 are two sections of feeders, and the length values of the feeders can be specifically designed according to the phase requirements of the beam as needed.

[0069] Please refer to Figures 1 to 15 As shown, in an embodiment of the present invention, a high-power short-wave tangent switch power divider 500, a first antenna unit 610, a second antenna unit 620, a third antenna unit 630, and a fourth antenna unit 640 are provided to form an antenna unit. Among them, the feeder input interface 410 in two sets of feeder devices 400 is connected to the power divider 500, and the first antenna unit 610 and the second antenna unit 620 are connected. The third antenna unit 630 and the fourth antenna unit 640 are respectively connected to the feeder output interfaces 440 in the two sets of feeder devices 400.

[0070] The radio frequency signal is divided into two paths by the power divider 500. One path of the radio frequency signal is directly transmitted to the first antenna unit 610 and the second antenna unit 620, and the other path of the radio frequency signal is transmitted to the third antenna unit 630 and the fourth antenna unit 640 through the switching switch. The two paths of radio frequency signals passing through the switching switch complete the change of the phase during the transmission process, thereby raising the antenna radiation elevation angle and achieving the "blind spot filling" effect in the near and medium ranges. The amount of change in the phase of the radio frequency signal is different in different working modes, and the elevation amount of the antenna radiation elevation angle also changes accordingly, so as to achieve the "blind spot filling" effect under different terrains and landforms.

[0071] The high-power short-wave tangent switch includes four working modes. The first working mode: The feeder input interface 410 receives a radio frequency signal, and the radio frequency signal is transmitted along the connecting plate 2332 on the second turntable 232 to the first feeder 420, and then transmitted to the second feeder 430 through the first feeder 420, and then transmitted to the feeder output interface 440 through the short-circuit plate 3450 and the connecting plate 2332 on the first turntable 231, thereby affecting the corresponding antenna unit and realizing the first beam phase change. See Figure 10 As shown.

[0072] The second working mode: The control system sends an instruction to the rotary switching contact device 2340 to drive the rotary shaft 220 to rotate counterclockwise. The angle detection device 240 feeds back the rotation angle of the rotary shaft 220 to the control system, and when the rotary shaft 220 rotates to the specified position, it stops rotating; the feeder input interface 410 receives a radio frequency signal, and the radio frequency signal is transmitted along the connecting plate 2332 on the first turntable 231 to the feeder output interface 440, and then output to the corresponding antenna unit to realize the second beam phase change. See Figure 13 As shown.

[0073] The third working mode: The control system sends an instruction to the rotary switching contact device 2340 to drive the rotary shaft 220 to rotate counterclockwise. The angle detection device 240 feeds back the rotation angle of the rotary shaft 220 to the control system, and the rotary shaft 220 stops rotating after rotating to the specified position; the feeder input interface 410 receives a radio frequency signal, and the radio frequency signal is transmitted along the connecting plate 2332 on the first turntable 231 to the first feeder 420, and then transmitted to the feeder output interface 440 through the connecting plate 2332 and the shorting plate 3450 on the second turntable 232, and then output to the corresponding antenna unit, realizing the third beam phase change, as shown in Figure 14 shown.

[0074] In the fourth working mode, the feeder input interface 410 receives a radio frequency signal, and the fixed contact device 300 connected to the feeder input interface 410 is not connected to the rotary switching contact device 2340, and the transmission link is in a disconnected state. At this time, the radio frequency signal cannot be transmitted to the corresponding antenna unit, as shown in Figure 15 shown.

[0075] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claimed rights.

[0076] The above embodiments only represent the implementation modes of the invention. The protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention.

Claims

1. A transmission device, characterized in that: The invention comprises a power device (210) and a rotating shaft (220), wherein the power device (210) drives the rotating shaft (220) to rotate; wherein the power device (210) comprises an electric drive device (211), a first one-way bearing (212), a worm (213), a turbine (214), a hand crank (215), a second one-way bearing (216) and a connecting shaft (217); one end of the worm (213) passes through the inner ring of the one-way bearing (212) and is coaxially connected to the first one-way bearing (212); the first one-way bearing (21 2) is coaxially connected to the output shaft of the electric drive device (211); the other end of the worm (213) passes through the inner ring of the second one-way bearing (216) and is coaxially connected to the second one-way bearing (216); the connecting shaft (217) is coaxially connected to the outer ring of the second one-way bearing (216), and the hand crank (215) is connected to the connecting shaft (217); the rotating shaft (220) is concentrically assembled with the turbine (214); and the first one-way bearing (212) and the second one-way bearing (216) are installed in reverse.

2. The transmission device according to claim 1, characterized in that: A first bevel gear (2151) is provided at the end of the hand crank (215), a second bevel gear is provided on the connecting shaft (217), and the first bevel gear (2151) is meshed with the second bevel gear; The hand crank (215) is rotated, and the first bevel gear (2151) is meshed with the second bevel gear, so that the connecting shaft (217) drives the outer ring of the second one-way bearing (216) to rotate coaxially, and at the same time drives the inner ring of the second one-way bearing (216) and the worm (213) to rotate, so that the worm (213) and the turbine (214) are meshed, and drive the rotating shaft (220) to rotate; When the hand crank (215) is rotated in the reverse direction, the outer ring of the second one-way bearing (216) is locked relative to the inner ring of the second one-way bearing (216), and cannot drive the worm (213) to rotate.

3. The transmission device according to claim 1, characterized in that: The electric drive device (211) comprises a motor (2111) and a reducer (2112) connected to an output end of the motor (2111); the outer ring of the first one-way bearing (212) is coaxially connected to an output shaft of the reducer (2112); The motor (2111) is started, and the motor (2111) drives the output shaft of the reducer (2112) and the outer ring of the first one-way bearing (212) to rotate coaxially, and at the same time drives the inner ring of the first one-way bearing (212) and the worm (213) to rotate, so that the worm (213) and the turbine (214) are meshed, and drive the rotating shaft (220) to rotate; When the output shaft of the motor (2111) rotates in the reverse direction, the outer ring of the first one-way bearing (212) is locked relative to the inner ring of the first one-way bearing (212), and cannot drive the worm (213) to rotate.

4. The transmission device according to claim 1, characterized in that: When the motor (2111) drives the worm (213) to rotate, the worm (213) located in the second one-way bearing (216) drives the inner ring of the second one-way bearing (216) to rotate idly; When the hand crank (215) drives the worm (213) to rotate, the worm (213) located in the first one-way bearing (212) drives the inner ring of the first one-way bearing (212) to rotate idly; The direction in which the hand crank (215) drives the rotating shaft (220) to rotate is the same as the direction in which the electric drive device (211) drives the rotating shaft (220) to rotate.

5. A high-power short-wave tangent switch, characterized in that: The invention comprises a transmission device as claimed in any one of claims 1 to 4, and further comprises a frame (100), a rotating switching contact device (2340), a fixed contact device (300) and a feeder device (400); the rotating switching contact device (2340) is connected to the rotating shaft (220), and is arranged around the rotating shaft (220) as the rotation center; the power device (210) drives the rotating shaft (220) to rotate, and synchronously drives the rotating switching contact device (2340) to rotate in the frame (100), and the feeder device (400) is connected to the fixed contact device (300); and the fixed contact device (300) is arranged around the rotating switching contact device (2340) in the frame (100), and when the rotating switching contact device (2340) rotates, it is connected to the fixed contact devices (300) at different positions, so as to realize the switching of the feeder system between different phases.

6. The high-power short-wave tangent switch according to claim 5, characterized in that: The rotation switching contact device (2340) comprises a rotating disk (230) and an angle detection device (240); the rotating disk (230) is installed on the rotating shaft (220), and the angle detection device (240) is fixed at the end of the rotating shaft (220); the power device (210) drives the rotating shaft (220) to rotate, and at the same time drives the rotating disk (230) and the angle detection device (240) to rotate in the same direction, and the angle detection device (240) feeds back the rotation angle information of the rotating shaft (220).

7. The high-power short-wave tangent switch according to claim 6, characterized in that: The rotating disk (230) is a regular pentagonal structure, and is arranged in a split manner, comprising a first rotating disk (231) and a second rotating disk (232); each rotating disk comprises an insulating medium block (2331), a connecting plate (2332), a mounting block (2333) and a contact spring (2334); The insulating medium blocks (2331) of the two rotating disks are symmetrically arranged; The "L"-shaped connecting plate (2332) of each rotating disk is fixedly located on the outer edge of the insulating medium block (2331) and wraps around a corner of the insulating medium block (2331); the head ends of the connecting plates (2332) of the two rotating disks are arranged at a certain angle with the shaft hole of the rotating disk (230) as the origin; Both ends of each connecting plate (2332) are provided with mounting blocks (2333), and the mounting blocks (2333) are detachably connected to the contact springs (2334), and the contact springs (2334) on the mounting blocks (2333) are arranged at a certain angle; When the turntable (230) is rotated, the center of gravity of the turntable (230) coincides with the center of gravity of the rotating shaft (220), and the torque on the rotating shaft (220) is consistent at each rotation angle.

8. The high-power short-wave tangent switch according to claim 5, characterized in that: The fixed contact device (300) comprises a first fixed contact device (310), a second fixed contact device (320), a third fixed contact device (330), a fourth fixed contact device (340) and a fifth fixed contact device (350); the first fixed contact device (310) to the fifth fixed contact device (350) are located on a circle with the rotating shaft (220) as the center and the maximum distance from the end of the contact spring (2334) to the rotating shaft (220) minus the compression amount of the contact spring (2334) as the radius, and are evenly distributed; and the fourth fixed contact device (340) and the fifth fixed contact device (350) are connected via a short-circuit plate (3450).

9. The high-power short-wave tangent switch according to claim 5, characterized in that: Each fixed contact device (300) comprises an electrode contact block (312) and a porcelain rod (303); the electrode contact block (312) comprises a fixed clamp (301) and an arc block (302); the non-contact surface (A) of the fixed clamp (301) is protruding to form a lug (3011), and a straight semi-cylindrical groove (3012) is also provided on the non-contact surface (A) of the fixed clamp (301), and the straight semi-cylindrical groove (3012) is 12) passes through the lug (3011); the arc block (302) is fixedly located on the non-contact surface (A) of the fixing clamp (301), and a semicircular convex groove (3021) is provided on the arc block (302), the semicircular convex groove (3021) and the straight semi-cylindrical groove (3012) overlap to form a porcelain rod through hole (3123), and the porcelain rod (303) passes through the porcelain rod through hole (3123) and is connected to the frame (100).

10. The high-power short-wave tangent switch according to claim 8, characterized in that: The feeder device (400) comprises a feeder input interface (410), a first feeder (420), a second feeder (430) and a feeder output interface (440); Wherein, the first fixed contact device (310) is connected to the feeder input interface (410), the second fixed contact device (320) is connected to one end of the first feeder (420), the third fixed contact device (330) is connected to the other end of the first feeder (420) and the second feeder (430), the fourth fixed contact device (340) is connected to the second feeder (430), and the fifth fixed contact device (350) is connected to the feeder output interface (440).

11. The high-power short-wave tangent switch according to claim 5, characterized in that: The high-power short-wave cutting switch also includes a power divider (500), a first antenna unit (610), a second antenna unit (620), a third antenna unit (630) and a fourth antenna unit (640); wherein the feeder input interface (410) in the two groups of feeder devices (400) is connected to the power divider (500), and the first antenna unit (610) and the second antenna unit (620) are connected; the third antenna unit (630) and the fourth antenna unit (640) are respectively connected to the feeder output interface (440) in the two groups of feeder devices (400); The radio frequency signal is divided into two paths through the power divider (500), one path of the radio frequency signal is directly transmitted to the first antenna unit (610) and the second antenna unit (620); and the other path of the radio frequency signal is transmitted to the third antenna unit (630) and the fourth antenna unit (640) through a switching switch.

12. The high-power short-wave tangent switch according to claim 11, characterized in that: The high-power short-wave tangent switch includes four working modes: The first working mode: the feeder input interface (410) receives a radio frequency signal, the radio frequency signal is transmitted along the connecting plate (2332) on the second rotating disk (232) to the first feeder (420), transmitted to the second feeder (430) through the first feeder (420), and then transmitted to the feeder output interface (440) through the short-circuit plate (3450) and the connecting plate (2332) on the first rotating disk (231), thereby affecting the corresponding antenna unit to achieve the first beam phase change; The second working mode: the control system sends a command to the rotation switching contact device (2340) to drive the rotating shaft (220) to rotate counterclockwise, the angle detection device (240) feeds back the rotation angle of the rotating shaft (220) to the control system, and the rotating shaft (220) stops rotating when it rotates to a specified position; the feeder input interface (410) receives a radio frequency signal, and the radio frequency signal is transmitted to the feeder output interface (440) along the connecting plate (2332) on the first rotating disk (231), and then output to the corresponding antenna unit, thereby realizing the second beam phase change; The third working mode: the control system sends a command to the rotation switching contact device (2340) to drive the rotating shaft (220) to rotate counterclockwise, the angle detection device (240) feeds back the rotation angle of the rotating shaft (220) to the control system, and the rotating shaft (220) stops rotating when it rotates to a specified position; the feeder input interface (410) receives a radio frequency signal, and the radio frequency signal is transmitted to the first feeder (420) along the connecting plate (2332) on the first rotating disk (231), and is transmitted to the feeder output interface (440) through the first feeder (420), the connecting plate (2332) on the second rotating disk (232) and the short-circuit plate (3450), and is then output to the corresponding antenna unit to achieve the third beam phase change; In the fourth working mode, the feeder input interface (410) receives a radio frequency signal, and the fixed contact device (300) connected to the feeder input interface (410) is not connected to the rotating switching contact device (2340), and the transmission link is in a disconnected state. At this time, the radio frequency signal cannot be input to the corresponding antenna unit.

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