Precision adjusting device and adjusting method suitable for short wave tangent switch

Abstract

The invention discloses a precision adjusting device and method suitable for a short-wave tangent switch. The device comprises a first adjusting device and a second adjusting device which act on the short-wave tangent switch. The shortwave tangent switch comprises a rotating shaft, a phase shift rotating disc and a fixed contact device. The phase-shifting turntable sleeves the rotating shaft, the fixed contact devices are arranged around the rotating shaft and the phase-shifting turntable, and when the rotating shaft rotates, the phase-shifting turntable is connected with the fixed contact devices at different positions; the rotating shaft is sleeved with two phase shifting rotating discs. A plurality of contact reeds are arranged on the phase shifting turntable; the fixed contact device comprises a plurality of sub fixed contact devices, and each sub fixed contact device comprises an electrode contact block and a porcelain rod; the two electrode contact blocks are sleeved on the porcelain rod; the first adjusting device is used for enabling the distances from the highest points of all the contact reeds to the axis of the rotating shaft to be the same; the distances from the highest points of the cambered surfaces of all the electrode contact blocks to the axis of the rotating shaft are the same; and the second adjusting device is used for enabling the axial distance between the two electrode contact blocks on the ceramic rod to be equal to the axial phase distance between the two phase shifting rotary discs on the rotating shaft. According to the invention, the mounting difficulty can be reduced while the assembly precision is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of high-power broadcasting, and particularly to an accuracy adjustment device and an adjustment method applicable to a short-wave tangent switch. Background Art

[0002] For short-wave tangent switches, such as program switches and phase-shifting switches, the commonly used structure form at present is a rotatable one. By rotating the arm to contact contact blocks at different positions, the radio frequency signal is controlled to be transmitted to different antenna units, thereby realizing different working modes of the antenna.

[0003] It is crucial that the contact spring piece on the rotating arm makes full and reliable contact with the contact block. Once poor contact occurs between the two, it is easy to cause the contact part to burn out, the system to shut down, and even the final-stage electron tube of the transmitter to burn out.

[0004] Since the short-wave tangent switch is a complex moving structure, involving a large number of parts and various processing and forming methods, such as welded parts, bent parts, die-cast parts, etc., there are errors in the processing and assembly processes. If only relying on improving the processing accuracy of parts to ensure the accuracy of the switch, this method has high economic costs, strict requirements for the assembly process, and poor feasibility. Another commonly used method is to leave a large compression amount for the contact spring piece during design. On the premise of ensuring that the spring piece can contact each electrode contact block, a certain deviation from the design size is allowed. However, this method will result in different compression amounts when the spring piece contacts each electrode contact block, an unstable switching process, and it is easy to scratch the contact block.

[0005] In the prior art, a utility model patent with the patent publication number CN203843736U, a positioning component and a tooling, installs a positioning block providing a positioning surface on the rotating arm. Therefore, when using the positioning component, the rotating arm can be rotated to the working position where the positioning block is in place, and when not using the positioning component, the rotating arm can be rotated to the retracted position. In this way, there is no need to increase the contour size of products such as tooling to provide a positioning surface at a specific position, which can reduce the development cost of the product and narrow the storage space of the product. However, in the prior art, the rotating arm is used to make the positioning component in different positions in different working states. Summary of the Invention

[0006] The technical problem to be solved by the present invention is: to solve the problem of improving the assembly accuracy of the short-wave tangent switch while reducing the assembly difficulty.

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

[0008] An accuracy adjustment device applicable to a short-wave tangent switch includes a first adjustment device 100 and a second adjustment device 200 acting on the short-wave tangent switch 500;

[0009] Among them, the short-wave tangent switch 500 includes a rotating shaft 530, a phase-shifting turntable 540, and a fixed contact device 5680; the phase-shifting turntable 540 is sleeved on the rotating shaft 530, and the fixed contact device 5680 is arranged around the rotating shaft 530 and the phase-shifting turntable 540. When the rotating shaft 530 rotates, the phase-shifting turntable 540 is connected to the fixed contact device 5680 at different positions;

[0010] Two phase-shifting turntables 540 are sleeved on the rotating shaft 530; and a plurality of contact reeds 544 are arranged on the phase-shifting turntable 540; the fixed contact device 5680 includes a plurality of sub-fixed contact devices, and each sub-fixed contact device includes an electrode contact block 570 and a porcelain rod 580; and two electrode contact blocks 570 are sleeved on the porcelain rod 580;

[0011] The first adjustment device 100 is used to make the distance from the highest point of all the contact reeds 544 to the axis of the rotating shaft 530 the same; and the distance from the highest point of the arc surface of all the electrode contact blocks 570 to the axis of the rotating shaft 530 the same;

[0012] The second adjustment device 200 is used to make the axial distance between the two electrode contact blocks 570 on the porcelain rod 580 equal to the axial distance between the two phase-shifting turntables 540 on the rotating shaft 530.

[0013] In an embodiment of the present invention, the first adjustment device 100 includes a scale plate 110, a slider 120, and a fixed block 130; a waist-shaped hole 111 is opened on one end surface of the scale plate 110, and scale lines are arranged on both sides of the waist-shaped hole 111; there is a first semi-fixed hole 112 at the other end of the scale plate 110; the slider 120 can slide in the waist-shaped hole 111 and is detachably connected to the scale plate 110; the fixed block 130 is detachably connected to the other end of the scale plate 110, and a second semi-fixed hole 131 is arranged on the fixed block 130; during use, the first semi-fixed hole 112 and the second semi-fixed hole 131 are engaged to fix the rotating shaft 530, so that the first adjustment device 100 can rotate around the rotating shaft 530.

[0014] In an embodiment of the present invention, the side surface of the slider 120 facing the rotating shaft 530 is a plane, and the side surface of the slider 120 facing the electrode contact block 570 is an arc surface.

[0015] In an embodiment of the present invention, at the zero position of the scale line on the scale plate 110, the distance from the highest point of the arc surface of the slider 120 to the axis of the rotating shaft 530 is equal to the distance from the highest point of the contact reed 544 to the axis of the rotating shaft 530.

[0016] In an embodiment of the present invention, the second adjustment device 200 includes an adjustment body 210 and a porcelain rod clamping block 220. On one side surface of the adjustment body 210, a first groove 211, a second groove 212, a third groove 213, and a fourth groove 214 are sequentially arranged, and a connection channel 215 communicating the first groove 211, the second groove 212, the third groove 213, and the fourth groove 214 is also arranged; the first groove 211 and the fourth groove 214 are assembled with the porcelain rod clamping block 220 to clamp the porcelain rod 580.

[0017] In an embodiment of the present invention, the distance between the same side surfaces of the second groove 212 and the third groove 213 in the axial direction is equal to the axial distance between two phase-shifting turntables 540 on the rotating shaft 530.

[0018] In an embodiment of the present invention, the depths of the third groove 213 and the fourth groove 214 are greater than the depth of the connection channel 215.

[0019] In an embodiment of the present invention, the phase-shifting turntable 540 has a regular pentagon structure and is arranged in a split manner, including a first sub-phase-shifting turntable and a second sub-phase-shifting turntable; each sub-phase-shifting turntable includes an insulating dielectric block 541, a reed connecting plate 542, and a reed mounting block 543;

[0020] The insulating dielectric blocks 541 of the two sub-phase-shifting turntables are symmetrically arranged;

[0021] The "L"-shaped reed connecting plate 542 of each sub-phase-shifting turntable is fixedly located on the outer edge of the insulating dielectric block 541 and wraps an angle of the insulating dielectric block 541; the first ends of the reed connecting plates 542 of the two sub-phase-shifting turntables are arranged at a certain angle with the axis hole of the phase-shifting turntable 540 as the origin.

[0022] Both ends of each reed connecting plate 542 are provided with reed mounting blocks 543, and the contact reeds 544 are detachably connected to the reed mounting blocks 543, and the contact reeds 544 on the reed mounting blocks 543 are arranged at a certain angle.

[0023] When the phase-shifting turntable 540 rotates, the center of gravity of the phase-shifting turntable 540 coincides with the center of gravity of the rotating shaft 530, and at each rotation angle, the torque on the rotating shaft 530 is consistent.

[0024] In an embodiment of the present invention, the short-wave tangent switch 500 includes a phase-shifting switch frame 510, and a connecting angle member 511 is arranged on the phase-shifting switch frame 510; the electrode contact block 570 is connected to the connecting angle member 511 and the phase-shifting switch frame 510; by adjusting the connection distance between the connecting angle member 511 and the phase-shifting switch frame 510, the direction of the highest point of the arc surface of the electrode contact block 570 relative to the rotating shaft 530 is indirectly adjusted; and the connection hole of the connecting angle member 511 on the phase-shifting switch frame 510 is an oblong hole.

[0025] The present invention also provides an adjustment method for an accuracy adjustment device applicable to a short-wave tangent switch, including:

[0026] First, use the first adjustment device 100 to make the distances from the highest points of all contact reeds 544 on the phase-shifting turntable 540 to the axis of the rotating shaft 530 the same;

[0027] Secondly, use the second adjustment device 200 to make the axial distances between two electrode contact blocks 570 on the same porcelain rod 580 equal; and adjust the axial distance between the two phase-shifting turntables 540 on the rotating shaft 530 so that the axial distance between the two electrode contact blocks 570 is equal to the axial distance between the phase-shifting turntables 540;

[0028] Finally, use the first adjustment device 100 to make the distances from the highest points of the arc surfaces of the electrode contact blocks 570 on all porcelain rods 580 to the axis of the rotating shaft 530 the same;

[0029] Thus, a circle is formed with the rotating shaft 530 as the center, the distance from the highest point of the contact reed 544 to the axis of the rotating shaft 530 as the radius, and the highest points of the arc surfaces of the electrode contact blocks 570 on the circumference.

[0030] In an embodiment of the present invention,

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows: Based on the structural characteristics of the short-wave tangent switch, the first adjustment device and the second adjustment device make the distances from the highest points of the arc surfaces of the electrode contact blocks to the axis of the rotating shaft the same, and the distances from the highest points of the contact reeds to the axis of the rotating shaft the same through the first adjustment device. Through the second adjustment device, the axial distance between two electrode contact blocks on the same porcelain rod is equal to the axial distance between two phase-shifting turntables on the rotating shaft. The first adjustment device and the second adjustment device have simple structures, low economic costs, and convenient operations, reduce the assembly difficulty, and have high feasibility.

[0032] A first adjustment device can adjust the position limitations of two components, and the limitations between the electrode contact blocks, the contact reeds and the rotating shaft.

[0033] The short-wave tangent switch can realize the switching of the feeder system between different phases by rotating the switching contact device. The two-way radio frequency signals passing through the switching switch complete the change of the phase during the transmission process, thereby raising the radiation elevation angle of the antenna 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 by the switching switch 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 in different terrains and landforms. It can realize multiple switching modes and has the advantages of simple structure, gentle switching action, reliable structure, and convenient maintenance. Description of the Drawings

[0034] Figure 1 And Figure 2 is a schematic diagram of an accuracy adjustment device applicable to a short - wave tangent switch according to an embodiment of the present invention.

[0035] Figure 3 is a schematic diagram of a short - wave tangent switch according to an embodiment of the present invention.

[0036] Figure 4 is a schematic diagram of a rotary switching contact device according to an embodiment of the present invention.

[0037] Figure 5 is a schematic diagram of a phase - shifting turntable according to an embodiment of the present invention.

[0038] Figure 6 is a schematic diagram of a phase - shifting turntable from another perspective according to an embodiment of the present invention.

[0039] Figure 7 is a schematic diagram of a rotary switching contact device and a fixed contact device according to an embodiment of the present invention.

[0040] Figure 8 is a schematic diagram of an electrode contact block and a porcelain rod according to an embodiment of the present invention.

[0041] Figure 9 is a schematic diagram of an electrode contact block according to an embodiment of the present invention.

[0042] Figure 10 is a schematic diagram of a power divider according to an embodiment of the present invention.

[0043] Figures 11 to 14 is a working principle diagram of a short - wave tangent switch according to an embodiment of the present invention.

[0044] Figure 15 is a schematic diagram of a second adjustment device according to an embodiment of the present invention.

[0045] Figure 16 is a schematic diagram of the axial distance between two phase - shifting turntables according to an embodiment of the present invention.

[0046] Figure 17 is a schematic diagram of a first adjustment device and a contact reed adjustment according to an embodiment of the present invention.

[0047] Figure 18 is a schematic diagram of a second adjustment device and an electrode contact block adjustment according to an embodiment of the present invention. Detailed implementation manners

[0048] To facilitate those skilled in the art to understand the technical solution of the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings of the specification.

[0049] 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 this application, "a plurality of" means two or more unless otherwise specifically defined.

[0050] Please refer to Figures 1 to 3 As shown, the present invention provides a precision adjustment device applicable to a short-wave tangent switch, which includes a first adjustment device 100 and a second adjustment device 200 acting on the short-wave tangent switch 500.

[0051] Please refer to Figures 3 to 14 As shown, in an embodiment of the present invention, for the convenience of understanding the present invention, the short-wave tangent switch 500 is first explained. In order to increase the near and medium-range coverage of short-wave broadcast signals and reduce the coverage blind area of the near area of the short-wave radio station 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 space synthesis, the antenna beam is controlled to point upward, and a beam with a higher elevation angle can be formed to achieve the coverage of the radio station signal in a region closer to the antenna position. During the operation of the short-wave broadcast system, the terrain and landforms of different signal emission directions are different, and the beam elevation angles to be adjusted are not the same.

[0052] Currently, most switching switches only have one switching mode. In order to achieve different beam elevation angles, multiple switching switches need to be equipped on the feeder transmission path and controlled to achieve this. This method not only increases the equipment quantity, increases the economic cost, reduces the reliability of the system, but also improves the requirement for the space required for installation, makes the structural layout complex and inconvenient for maintenance. The short-wave tangent switch 500 in this embodiment can solve this problem.

[0053] In an embodiment of the present invention, the short-wave tangent switch 500 includes a phase-shifting switch frame 510, and a rotary switching contact device 5250 and a fixed contact device 5680 located within the phase-shifting switch frame 510. The fixed contact device 5680 is arranged around the rotary switching contact device 5250, and when the rotary switching contact device 5250 rotates, it is connected to the fixed contact device 5680 at different positions.

[0054] In this embodiment, a connecting angle piece 511 is provided on the phase-shifting switch frame 510; the electrode contact block 570 is connected to the connecting angle piece 511 and the phase-shifting switch frame 510; by adjusting the connection distance between the connecting angle piece 511 and the phase-shifting switch frame 510, the direction of the highest point of the arc surface of the electrode contact block 570 relative to the rotation axis 530 is indirectly adjusted, and the connection hole of the connecting angle piece 511 on the phase-shifting switch frame 510 is a waist-shaped hole.

[0055] In an embodiment of the present invention, the rotary switching contact device 5250 includes a power device 520, a rotation axis 530, a phase-shifting turntable 540, and an angle detection device 550. The power device 520 is fixedly located outside the phase-shifting switch frame 510, the rotation axis 530 is located inside the phase-shifting switch frame 510, and is connected to the output end of the power device 520. The phase-shifting turntable 540 is mounted on the rotation axis 530, and the angle detection device 550 is fixedly located at the end of the rotation axis 530. The power device 520 drives the rotation axis 530 to rotate, and at the same time drives the phase-shifting turntable 540 and the angle detection device 550 to rotate in the same direction, and the angle detection device 550 feeds back the rotation angle information of the rotation axis 530. Specifically, two phase-shifting turntables 540 are sleeved on the rotation axis 530 and are spaced apart.

[0056] In the embodiment, the power device 520 is a combination of a servo motor and a reducer. The reducer has both electric drive and hand-crank drive functions and can be manually intervened in the event of a servo system failure or power outage. Specifically, the angle detection device 550 is an encoder.

[0057] In this embodiment, the phase-shifting turntable 540 has a regular pentagon structure and is provided in a split form, including a first sub-phase-shifting turntable and a second sub-phase-shifting turntable, and the rotation axis 530 passes through the center of the regular pentagon. Each sub-phase-shifting turntable includes an insulating dielectric block 541, a reed connecting plate 542, a reed mounting block 543, and a contact reed 544. The insulating dielectric blocks 541 of the two sub-phase-shifting turntables are symmetrically arranged, and the "L"-shaped reed connecting plates 542 of each sub-phase-shifting turntable are fixedly located on the outer edge of the insulating dielectric block 541 and wrap one corner of the insulating dielectric block 541. The first ends of the reed connecting plates 542 of the two sub-phase-shifting turntables are arranged at a certain angle with the axis hole of the phase-shifting turntable 540 as the origin. In this embodiment, the angle is 144°.

[0058] In this embodiment, reed mounting blocks 543 are provided at both ends of each reed connecting plate 542, and the contact reeds 544 are detachably connected to the reed mounting blocks 543, and the contact reeds 544 on the reed mounting blocks 543 are arranged at a certain angle. In this embodiment, the angle between the contact reeds 544 on adjacent two reed mounting blocks 543 is 72°.

[0059] In this embodiment, the insulating dielectric block 541 is made of epoxy glass cloth. The reed connection plate 542 and the reed mounting block 543 are made of brass, which has good electrical conductivity. The contact reed 544 is formed by bending beryllium bronze, and the end of the contact reed 544 is designed into a finger-like structure, which can ensure smooth switching operation. Two groups of reed mounting blocks 543 are arranged at both ends of each reed connection plate 542, so that the contact reeds 544 are mounted in a double layer, which can ensure good contact between the contact reeds 544 and the fixed contact device 300. When the phase-shifting turntable 540 rotates, the center of gravity of the phase-shifting turntable 540 coincides with the center of gravity of the rotating shaft 530, and the torque on the rotating shaft 530 is consistent at each rotation angle.

[0060] In this embodiment, the fixed contact device 5680 includes a first sub-fixed contact device 561, a second sub-fixed contact device 562, a third sub-fixed contact device 563, a fourth sub-fixed contact device 564, and a fifth sub-fixed contact device 565. The first sub-fixed contact device 561 to the fifth sub-fixed contact device 565 are located on a circumference centered on the rotating shaft 530, with a radius equal to the maximum distance from the end of the contact reed 544 to the rotating shaft 530 minus the compression amount of the contact reed 544, and are evenly distributed. The fourth sub-fixed contact device 564 and the fifth sub-fixed contact device 565 are connected by a shorting plate 566.

[0061] In this embodiment, the compression amount of the contact reed 544 is 3 mm, and the compression amount can be adjusted adaptively according to different sizes of the switching switch. Similarly, the bending directions of the ends of multiple contact reeds 544 are the same, and the ends of multiple contact reeds 544 are all on the circumference. In this embodiment, two groups of phase-shifting turntables 540 are arranged on the rotating shaft 530, and each group of phase-shifting turntables 540 is equipped with a group of fixed contact devices 5680 and feeders to form two switching switches.

[0062] In this embodiment, each sub-fixed contact device includes an electrode contact block 570 and a porcelain rod 580. The electrode contact block 570 includes a fixed clamp 571 and an arc block 574. The non-contact surface A of the fixed clamp 571 protrudes to form a lug 572. At the same time, a straight-through semi-cylindrical groove 573 is also provided on the non-contact surface A of the fixed clamp 571, and the straight-through semi-cylindrical groove 573 passes through the lug 572. The arc block 574 is fixedly located on the non-contact surface A of the fixed clamp 571, and a semi-circular convex groove 575 is provided on the arc block 574. The semi-circular convex groove 575 and the straight-through semi-cylindrical groove 573 overlap to form a porcelain rod through-hole 576. The porcelain rod 580 passes through the porcelain rod through-hole 576 and is connected to the phase-shifting switch frame 510. The contact surface B of the fixed clamp 571 faces the contact reed 544, and the contact surface B of the fixed clamp 571 is arranged in an arc shape to further ensure smooth switching operation.

[0063] In an embodiment of the present invention, a pole block mounting hole 5741 is provided on the arc block 574, and the fixed clamp 571 and the arc block 574 are detachably connected through the pole block mounting hole 5741. Further, a feeder mounting hole 5721 is provided on the lug 572, and the fixed contact device 5680 includes a feeder phase shift interface. Through the feeder mounting hole 5721, the fixed contact device 5680 is detachably connected to the feeder phase shift interface. The feeder phase shift interface includes a feeder phase shift input interface 591, a first phase shift feeder connection port 592, a second phase shift feeder connection port 593, a third phase shift feeder connection port 594, and a feeder phase shift output interface 595.

[0064] Among them, the first sub-fixed contact device 561 is connected to the feeder phase shift input interface 591, and the second sub-fixed contact device 562 is connected to the first phase shift feeder connection port 592. The third sub-fixed contact device 563 is connected to the second phase shift feeder connection port 593, and the first phase shift feeder connection port 592 and the second phase shift feeder connection port 593 are connected by a feeder; the fourth sub-fixed contact device 564 is connected to the third phase shift feeder connection port 594, and the second phase shift feeder connection port 593 and the third phase shift feeder connection port 594 are connected by a feeder. The fifth sub-fixed contact device 565 is connected to the feeder phase shift output interface 595. The low-frequency antenna unit 303 and the program switch are connected to the feeder phase shift input interface 591 and the feeder phase shift output interface 594 through feeders.

[0065] In this embodiment, a power divider 596 is further provided on the short-wave tangent switch 500. The feeder phase shift input interfaces 591 on the two groups of electrode contact blocks 570 are connected to the power divider 596, and then are respectively connected to two low-frequency antenna units 303 through the power divider 596. The feeder phase shift output interfaces 595 on the two groups of electrode contact blocks 570 are respectively connected to two other low-frequency antenna units 303.

[0066] In this embodiment, the RF signal is divided into two paths by the power divider 596. One path of the RF signal is directly transmitted to two low-frequency antenna units 303, and the other path of the RF signal is transmitted to two other low-frequency antenna units 303 through the switching switch. The two paths of RF 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 the near and medium ranges. The amount of phase change of the RF 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.

[0067] The short-wave tangent switch 500 includes four operating modes. The first operating mode: The feeder phase-shifting input interface 591 receives a radio frequency signal, and the radio frequency signal is transmitted along the reed connection plate 542 and the contact reed 544 on the second sub-phase-shifting turntable to the first phase-shifting feeder connection port 592, and then transmitted to the second phase-shifting feeder connection port 593 through the first phase-shifting feeder connection port 592, and then through the third phase-shifting feeder connection port 594, the shorting plate 566, and the reed connection plate 542 and the contact reed 544 on the first sub-phase-shifting turntable to the feeder phase-shifting output interface 595, thereby affecting the corresponding antenna element and realizing the first beam phase change, as shown in Figure 11 shown.

[0068] The second operating mode: The control system sends an instruction to the rotary switching contact device 5250 to drive the rotary shaft 530 to rotate counterclockwise. The angle detection device 550 feeds back the rotation angle of the rotary shaft 530 to the control system, and when the rotary shaft 530 rotates to the specified position, it stops rotating; the feeder phase-shifting input interface 591 receives a radio frequency signal, and the radio frequency signal is transmitted along the reed connection plate 542 and the contact reed 544 on the first sub-phase-shifting turntable to the feeder phase-shifting output interface 595, and then output to the corresponding antenna element to realize the second beam phase change, as shown in Figure 12 shown.

[0069] The third operating mode: The control system sends an instruction to the rotary switching contact device 5250 to drive the rotary shaft 530 to rotate counterclockwise. The angle detection device 550 feeds back the rotation angle of the rotary shaft 530 to the control system, and when the rotary shaft 530 rotates to the specified position, it stops rotating. The feeder phase-shifting input interface 591 receives a radio frequency signal, and the radio frequency signal is transmitted along the reed connection plate 542 and the contact reed 544 on the first sub-phase-shifting turntable to the first phase-shifting feeder connection port 592, and then through the first phase-shifting feeder connection port 592, the reed connection plate 542 and the contact reed 544 on the second sub-phase-shifting turntable, the second phase-shifting feeder connection port 593, the third phase-shifting feeder connection port 594, and the shorting plate 566 to the feeder phase-shifting output interface 595, and then output to the corresponding antenna element to realize the third beam phase change, as shown in Figure 13 shown.

[0070] The fourth operating mode: The feeder phase-shifting input interface 591 receives a radio frequency signal, and the sub-fixed contact device connected to the feeder phase-shifting input interface 591 is not connected to the rotary switching contact device 5250, and the transmission link is in a disconnected state. At this time, the radio frequency signal cannot be transmitted to the corresponding antenna element, as shown in Figure 14 shown.

[0071] Please refer to Figures 3 to 14As shown, in an embodiment of the present invention, as can be seen from the above, the structure of the short-wave tangent switch 500 has the following characteristics: the axial distances between two electrode contact blocks 570 on the same porcelain rod 580 are the same, the distances from the highest points of the arc surfaces of each electrode contact block 570 to the axis of the rotating shaft 530 are the same, and the distances from the highest points of a plurality of contact reeds 544 to the axis of the rotating shaft 530 are the same. Then, the following first adjustment device 100 and second adjustment device 200 are used for adjustment.

[0072] Please refer to Figure 1 、 Figure 2 、 Figures 15 to 18 As shown, in an embodiment of the present invention, the first adjustment device 100 includes a scale plate 110, a slider 120, and a fixed block 130. A waist-shaped hole 111 is formed on one end surface of the scale plate 110, and scale lines are provided on both side edges of the waist-shaped hole 111. There is a first semi-fixed hole 112 at the other end of the scale plate 110. The slider 120 can slide in the waist-shaped hole 111 and is detachably connected to the scale plate 110. The fixed block 130 is detachably connected to the other end of the scale plate 110, and a second semi-fixed hole 131 is provided on the fixed block 130. During use, the first semi-fixed hole 112 and the second semi-fixed hole 131 are engaged with the rotating shaft 530 so that the first adjustment device 100 can rotate around the rotating shaft 530.

[0073] The side surface of the slider 120 facing the rotating shaft 530 is a plane, and the side surface of the slider 120 facing the electrode contact block 570 is an arc surface. At the zero position of the scale line on the scale plate 110, the distance from the highest point of the arc surface of the slider 120 to the center of the rotating shaft 530 is equal to the distance from the highest point of the contact reed 544 to the axis of the rotating shaft 530. Specifically, the fitting clearance between the first adjustment device 100 and the rotating shaft 530 is 0.10 - 0.15 mm, and the graduation value of the scale line is 0.5 mm.

[0074] The second adjustment device 200 includes an adjustment body 210 and a porcelain rod clamping block 220. A first groove 211, a second groove 212, a third groove 213, and a fourth groove 214 are sequentially provided on one side surface of the adjustment body 210, and a connection channel 215 for connecting the first groove 211, the second groove 212, the third groove 213, and the fourth groove 214 is also provided. The first groove 211 and the fourth groove 214 are assembled with the porcelain rod clamping block 220 to clamp the porcelain rod 580.

[0075] The distance between the same-side surfaces of the second groove 212 and the third groove 213 in the axial direction is equal to the axial distance between two electrode contact blocks 570 on the same porcelain rod 580. The groove depths of the third groove 213 and the fourth groove 214 are greater than the depth of the connection channel 215, so as to adjust the position of the electrode contact blocks 570 on the porcelain rod 580 and ensure the axial spacing of the electrode contact blocks 570. Moreover, the second groove 212 and the third groove 213 of the second adjustment device 200 are also used to adjust the axial distance between two phase-shifting turntables 540 on the rotating shaft 530, so that the axial distance between two electrode contact blocks 570 on the porcelain rod 580 is equal to the axial distance between two phase-shifting turntables 540 on the rotating shaft 530. Among them, the second adjustment device 200 is made by precision machining of an aluminum plate.

[0076] Please refer to Figures 1 to 18 As shown, the present invention also provides an adjustment method for an accuracy adjustment device applicable to a short-wave tangent switch. The adjustment method includes: First, use the first adjustment device 100 to make the distances from the highest points of all contact reeds 544 on the phase-shifting turntable 540 to the axis of the rotating shaft 530 the same. Secondly, use the second adjustment device 200 to make the axial distances between two electrode contact blocks 570 on the same porcelain rod 580 equal; and adjust the axial distance between two phase-shifting turntables 540 on the rotating shaft 530 so that the axial distance between two electrode contact blocks 570 is equal to the axial distance between the two phase-shifting turntables 540. Finally, use the first adjustment device 100 to make the distances from the highest points of the arc surfaces of the electrode contact blocks 570 on all porcelain rods 580 to the axis of the rotating shaft 530 the same. Thus, a circle is formed with the rotating shaft 530 as the center, the distance from the highest point of the contact reed 544 to the axis of the rotating shaft 530 as the radius, and the highest points of the arc surfaces of the electrode contact blocks 570 on the circumference.

[0077] The adjustment method of the first adjustment device 100 specifically includes:

[0078] Assemble the fixed block 130 and the scale plate 110 so that the scale plate 110 is connected to the rotating shaft 530. Rotate the scale plate 110 and move the slider 120 at the same time to make the plane of the slider 120 tangent to the contact reed 544, and record the distance value H1 at this time. Taking this distance value H1 as the standard, traverse all the contact reeds 544 on the two phase-shifting turntables 540. For the contact reeds 544 with unqualified distances, remove the reed mounting block 543 of the contact reed 544 with unqualified distance, and remove part of the excess by precision machining. Finally, at the distance value H1, the plane of the slider 120 is tangent to the end of the contact reed 544.

[0079] The adjustment method of the second adjustment device 200 specifically includes:

[0080] Place the porcelain rod 580 into the connection channel 215. Position the two electrode contact blocks 570 on the porcelain rod 580 respectively within the second groove 212 and the third groove 213. One end of the porcelain rod 580 is located within the first groove 211, and the other end is located within the fourth groove 214. The porcelain rod 580 clamping block 220 that cooperates with the fourth groove 214 presses the porcelain rod 580 tightly against the first groove 211, and then, through the porcelain rod 580 clamping block 220 that cooperates with the first groove 211, fix the porcelain rod 580. Then, press the two electrode contact blocks 570 respectively against the C side surface of the second groove 212 and the D side surface of the third groove 213, where the C side surface and the D side surface are the same side surfaces in the axial direction of the second groove 212 and the third groove 213. Traverse all the porcelain rods 580 and adjust the axial distance between the two electrode contact blocks 570 on the same porcelain rod 580.

[0081] Install the above-adjusted sub-fixed contact device onto the frame 300. Theoretically, the highest points of the respective electrode contact blocks 570 are located on a circumference with the rotation axis 530 as the center and the distance from the highest point of the electrode contact block 570 to the axis of the rotation axis 530 as the radius. Apply the first adjustment device 100 again for adjustment. After the scale plate 110 is connected to the rotation axis 530, move the slider 120 to the zero position of the scale line. At this time, the distance from the highest point of the arc surface of the slider 120 to the center of the rotation axis 530 is the same as the distance from the highest point of the contact reed 544 to the axis of the rotation axis 530. Adjust the connecting angle piece 301 so that the arc surface of the fixed clamp 571 in the electrode contact block 570 is tangent to the arc surface of the slider 120, and traverse all the electrode contact blocks 570. Among them, the connecting angle piece 511 is arranged in an L shape, and the installation holes of the connecting angle piece 511 and the phase-shifting switch frame 510 are waist-shaped holes, which can be adjusted radially along a circle with the rotation axis 530 as the center and the distance from the highest point of the contact reed 544 to the axis of the rotation axis 530 as the radius.

[0082] Please refer to Figures 1 to 18 As shown, in an embodiment of the present invention, after the short-wave tangent switch 500 is adjusted by the first adjustment device 100 and the second adjustment device 200, the installation accuracy is improved, and it can ensure the full contact of the contact reed 544 to ensure the transmission of signals.

[0083] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described 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-limiting. 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 encompassed within the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

[0084] 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 modifications and improvements can be made, and these all fall within the protection scope of the present invention.

Claims

1. A precision adjustment device suitable for a short-wave tangent switch, characterized in that: It comprises a first adjustment device (100) and a second adjustment device (200) acting on a short-wave tangent switch (500); The short-wave tangent switch (500) comprises a rotating shaft (530), a phase shifting disk (540) and a fixed contact device (5680); the phase shifting disk (540) is sleeved on the rotating shaft (530), and the fixed contact device (5680) is arranged around the rotating shaft (530) and the phase shifting disk (540); when the rotating shaft (530) rotates, the phase shifting disk (540) is connected to the fixed contact devices (5680) at different positions; Two phase shifting discs (540) are sleeved on the rotating shaft (530); and a plurality of contact springs (544) are arranged on the phase shifting disc (540); the fixed contact device (5680) comprises a plurality of sub-fixed contact devices, each of which comprises an electrode contact block (570) and a porcelain rod (580); and the two electrode contact blocks (570) are sleeved on the porcelain rod (580); The first adjustment device (100) is used to make the distances from the highest points of all contact springs (544) to the axis center of the rotating shaft (530) the same; and the distances from the highest points of the arc surfaces of all electrode contact blocks (570) to the axis center of the rotating shaft (530) the same; The second adjustment device (200) is used to make the axial distance between the two electrode contact blocks (570) on the porcelain rod (580) equal to the axial distance between the two phase shifting rotating disks (540) on the rotating shaft (530).

2. The precision adjustment device for a short-wave tangent switch according to claim 1, characterized in that: The first adjustment device (100) comprises a scale plate (110), a slider (120) and a fixed block (130); a waist hole (111) is provided on one end surface of the scale plate (110), and scale lines are provided on both sides of the waist hole (111); a first half fixed hole (112) is provided on the other end of the scale plate (110); the slider (120) can slide in the waist hole (111) and is detachably connected to the scale plate (110); the fixed block (130) is detachably connected to the other end of the scale plate (110), and a second half fixed hole (131) is provided on the fixed block (130); when in use, the first half fixed hole (112) and the second half fixed hole (131) are engaged with the rotation axis (530), so that the first adjustment device (100) can rotate around the rotation axis (530).

3. The precision adjustment device for a short-wave tangent switch according to claim 2, characterized in that: The side surface of the slider (120) facing the rotating shaft (530) is a plane surface, and the side surface of the slider (120) facing the electrode contact block (570) is an arc surface.

4. The precision adjustment device for a short-wave tangent switch according to claim 3, characterized in that: The zero position of the scale line on the scale plate (110) makes the distance from the highest point of the arc surface of the slider (120) to the axis center of the rotating shaft (530) equal to the distance from the highest point of the contact spring (544) to the axis center of the rotating shaft (530).

5. The precision adjustment device for a short-wave tangent switch according to claim 1, characterized in that: The second adjustment device (200) comprises an adjustment body (210) and a porcelain rod clamping block (220); a first groove (211), a second groove (212), a third groove (213) and a fourth groove (214) are sequentially arranged on one side surface of the adjustment body (210); and a connecting channel (215) is also arranged to connect the first groove (211), the second groove (212), the third groove (213) and the fourth groove (214); the first groove (211) and the fourth groove (214) are assembled with the porcelain rod clamping block (220) to clamp the porcelain rod (580).

6. The precision adjustment device for a short-wave tangent switch according to claim 5, characterized in that: The distance between the same side surfaces of the second groove (212) and the third groove (213) in the axial direction is equal to the axial distance between the two phase shifting rotating disks (540) on the rotating shaft (530).

7. The precision adjustment device for a short-wave tangent switch according to claim 5, characterized in that: The depth of the third groove (213) and the fourth groove (214) is greater than the depth of the connecting channel (215).

8. The precision adjustment device for the short-wave tangent switch according to claim 1 is characterized in that: The phase shifting disc (540) is a regular pentagonal structure and is arranged in a split manner, comprising a first sub-phase shifting disc and a second sub-phase shifting disc; each sub-phase shifting disc comprises an insulating medium block (541), a spring connecting plate (542) and a spring mounting block (543); The insulating medium blocks (541) of the two sub-phase shifting disks are symmetrically arranged; The "L"-shaped spring connecting plate (542) of each sub-phase shifting disk is fixedly located on the outer edge of the insulating medium block (541) and wraps around a corner of the insulating medium block (541); the head ends of the spring connecting plates (542) of the two sub-phase shifting disks are arranged at a certain angle with the shaft hole of the phase shifting disk (540) as the origin; Both ends of each reed connecting plate (542) are provided with a reed mounting block (543), and the reed mounting block (543) is detachably connected to the contact reed (544), and the contact reed (544) on the reed mounting block (543) is arranged at a certain angle; When the phase shifting disk (540) is rotated, the center of gravity of the phase shifting disk (540) coincides with the center of gravity of the rotating shaft (530), and the torque on the rotating shaft (530) is consistent at each rotation angle.

9. The precision adjustment device for the short-wave tangent switch according to claim 1, characterized in that: The short-wave tangent switch (500) comprises a phase-shift switch frame (510), on which a connecting angle piece (511) is arranged; an electrode contact block (570) and the connecting angle piece (511) are connected to the phase-shift switch frame (510); the connection distance between the connecting angle piece (511) and the phase-shift switch frame (510) is adjusted to indirectly adjust the direction of the highest point of the arc surface of the electrode contact block (570) relative to the rotation axis (530); and the connecting hole of the connecting angle piece (511) on the phase-shift switch frame (510) is a waist hole.

10. An adjustment method for a precision adjustment device for a short-wave tangent switch according to any one of claims 1 to 9, characterized in that: include: Firstly, a first adjustment device (100) is used to make the distances from the highest points of all contact springs (544) on the phase shifting disk (540) to the axis of the rotating shaft (530) the same; Secondly, the second adjustment device (200) is used to make the axial distances between the two electrode contact blocks (570) on the same porcelain rod (580) equal; and the axial distances between the two phase shifting disks (540) on the rotating shaft (530) are adjusted so that the axial distance between the two electrode contact blocks (570) is equal to the axial distance between the phase shifting disks (540); Finally, the first adjustment device (100) is used to make the distances from the highest points of the arc surfaces of the electrode contact blocks (570) on all the porcelain rods (580) to the axis of the rotating shaft (530) the same; Thus, a circle is formed with the rotating shaft (530) as the center, the distance from the highest point of the contact spring (544) to the center of the rotating shaft (530) as the radius, and the highest point of the arc surface of the electrode contact block (570) is on the circumference.

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