A multi-channel high-power waveguide switch

Abstract

The present invention relates to a multi-channel high-power high-reliability waveguide switch, which mainly solves the problem that the microwave rotor is not completely in place when the waveguide switch switches the microwave waveguide channel, so that the waveguide port of the microwave rotor is not aligned with the corresponding waveguide window of the microwave stator, and the microwave rotor is positioned and remotely monitored in the microwave stator. The positioning boss 2 and the microwave rotor, as well as the positioning boss 1 and the microwave stator are manufactured as an integrated structure, a positioning cylinder is installed on the symmetrical center line of the two 90° curved waveguide channels of the microwave rotor, a micro switch device and a ball positioner are installed on the symmetrical center line of the microwave stator waveguide window, the microwave rotor positioning boss 2 and the corresponding positioning boss 1 of the microwave stator are in contact, the waveguide ports of the 90° curved waveguide channels of the microwave rotor are respectively aligned with the corresponding waveguide windows of the microwave stator, the positioning cylinder angle is adjusted, the positioning cylinder cam and the roller of the micro switch device are in contact, and the small micro switch is in a closed state, so that the microwave rotor is positioned.

Description

Technical Field

[0001] The invention relates to a mechanical waveguide conversion switch, which is used for switching microwave waveguide channels of radar, electronic countermeasures, satellite navigation, etc., and belongs to the field of mechatronics components. Background Art

[0002] The waveguide switch, i.e., the waveguide conversion switch, is mainly composed of a microwave stator and a microwave rotor. A waveguide window is provided on the outer side of the microwave stator, and a waveguide channel is provided inside the microwave rotor. The microwave rotor rotates in the microwave stator, and the waveguide channel inside the microwave rotor connects the waveguide windows on the outer sides of different microwave stators to realize the switching of the microwave waveguide channels of the waveguide switch. The present invention relates to a multi-channel high-power waveguide switch. Four waveguide windows A, B, C and D are evenly distributed on the outer side of a microwave stator, wherein waveguide window B is connected to a transmission waveguide from a transmitter, waveguide window D is connected to a transmission waveguide to an antenna, waveguide window C is connected to a high-power load (equivalent antenna), and waveguide window A is directly connected to a metal cover plate. Two symmetrical curved waveguide channels are arranged inside a microwave rotor. The microwave rotor is rotated to realize the switching of microwave waveguide channels from a transmitter to an antenna (B→D) and from a transmitter to a high-power load (equivalent antenna) (B→C) of the waveguide switch. When the waveguide switch is in a state of a microwave waveguide channel (B→C) from a transmitter to a high-power load (equivalent antenna), another curved waveguide channel of the microwave rotor is connected to waveguide windows A and D. The microwave waveguide channel (A→D) of the waveguide switch is used for detecting system indicators such as radar.

[0003] The waveguide switch can be manually controlled or electromagnetically driven to rotate the microwave rotor of the waveguide switch. The waveguide switch involved in the present invention is manually controlled to rotate the microwave rotor in the microwave stator to achieve the switching of the microwave waveguide channel from the waveguide switch transmitter to the antenna (B→D) and the transmitter to the high-power load (equivalent antenna) (B→C). When the radar is working, the waveguide switch is in the state of the microwave waveguide channel from the transmitter to the antenna. When the radar transmitter is debugged, the waveguide switch is in the state of the microwave waveguide channel from the transmitter to the high-power load (equivalent antenna). The high-power load (equivalent antenna) absorbs the high-power microwave signal of the transmitter, and the radar does not radiate into the air, so as to achieve the purpose of not exposing the radar working frequency. In order to ensure that the waveguide switch can normally transmit the high-power microwave signal of the transmitter without high-power sparking and breakdown, the manual control of rotating the microwave rotor in the microwave stator must ensure that the microwave rotor waveguide port and the corresponding waveguide window of the microwave stator can be accurately aligned. The existing alignment adjustment between the waveguide port and the corresponding waveguide window requires the design of a special tool. When the waveguide switch works in different microwave waveguide channels, the waveguide ports of the two waveguide channels are aligned with the corresponding waveguide windows by adjusting the position of the fixed rolling bearing support bushing. The rolling bearing support bushing is located in the microwave stator of the waveguide switch and is separated from the microwave rotor of the waveguide switch. After relative movement occurs between the microwave rotor and the microwave stator of the waveguide switch, the alignment accuracy between the waveguide port of the waveguide channel and the corresponding waveguide window will be affected. The position of the rolling bearing support bushing needs to be adjusted repeatedly, which makes the engineering implementation complex and the reliability low. When the waveguide switch works to switch the microwave waveguide channel, the hysteresis effect of the rolling bearing rotation inertia sometimes occurs. As a result, the microwave rotor is not fully in place, and a deviation occurs between the waveguide port of the microwave rotor waveguide channel and the corresponding waveguide window of the microwave stator. The waveguide switch is installed next to the transmitter cabinet in the radar high-frequency room. The radar control room and the high-frequency room are often far apart, and the waveguide switch cannot be remotely monitored in real time to prevent the transmitter from being turned off in time. When the waveguide switch transmits the transmitter's high-power microwave signal, it causes partial or total reflection of the transmitter power, and high-power sparking and breakdown occurs between the waveguide switch microwave rotor and the microwave stator, which will destroy the expensive transmitting tube of the radar transmitter and other important microwave devices such as the four-terminal circulator and TR tube, affecting the use of the equipment. Summary of the invention

[0004] Aiming at the problems that the microwave rotor is not completely in place when the microwave waveguide channel is switched in the existing waveguide switch, resulting in a deviation between the waveguide channel waveguide port and the corresponding waveguide window of the microwave stator, and the microwave rotor position cannot be remotely monitored in real time, the technical solution of the present invention mainly includes: when the waveguide switch switches the microwave waveguide channel, the microwave rotor is ensured to be completely in place, so that the waveguide port of the microwave rotor waveguide channel is aligned and positioned with the waveguide window of the microwave stator, and the microwave rotor position of the waveguide switch is remotely monitored.

[0005] The present invention proposes a multi-channel high-power waveguide switch, the technical solution of which includes:

[0006] The microwave stator 2 of the waveguide switch is installed on the waveguide switch housing. Four waveguide windows A, B, C and D are evenly distributed on the outer side of the microwave stator 2. Two positioning bosses 3 are symmetrically arranged on the microwave stator 2. The positioning bosses 3 are in an arc shape with an arc angle of 45°. The center positions of the positioning bosses 3 are respectively located at symmetrical positions between the waveguide windows A and C and between the waveguide windows B and D. Two 90° curved waveguide channels are symmetrically arranged inside the microwave rotor 1. Two positioning bosses 24 are symmetrically arranged on the symmetrical center lines of the two 90° curved waveguide channels of the microwave rotor 1. The positioning bosses 24 are in an arc shape with an arc angle of 45°. The center positions of the positioning bosses 24 are respectively located at the symmetrical center lines of the two 90° curved waveguide channels of the microwave rotor 1. The positioning bosses 24 and the microwave rotor 1 are integrally manufactured. The positioning bosses 13 and the microwave stator 2 are integrally formed. The microwave rotor 1 is made to rotate clockwise in the microwave stator 2 by the hand wheel 9, and when the first positioning boss 24 of the microwave rotor 1 contacts the second positioning boss 13 of the microwave stator 2 and the second positioning boss 24 of the microwave rotor 1 contacts the first positioning boss 13 of the microwave stator 2, the two waveguide openings of the first 90° curved waveguide channel of the microwave rotor 1 are respectively aligned with the two waveguide windows B and C on the microwave stator 2; similarly, the microwave rotor 1 is made to rotate counterclockwise in the microwave stator 2 by the hand wheel 9, and when the positioning boss 24 of the microwave rotor 1 contacts the corresponding positioning boss 13 of the microwave stator 2, the two waveguide openings of the second 90° curved waveguide channel of the microwave rotor 1 are respectively aligned with the two waveguide windows A and D on the microwave stator 2.

[0007] The bracket 8 is designed to be installed on the waveguide switch housing, and the ball positioner 5 is fixed to the bracket 8 so that the ball positioner 5 is located at the symmetrical center line of the waveguide windows A and C of the microwave stator 2. The micro switch devices 7a and 7b are respectively installed on the symmetrical center lines of the waveguide windows B and C of the microwave stator 2 and the waveguide windows B and D. The positioning cylinder 6 is installed on the symmetrical center line of the two 90° curved waveguide channels of the microwave rotor 1. The elastic force of the spring 17 is adjusted by the standard screw 15 and the special screw 16 of the ball positioner 5 so that the microwave rotor 1 can rotate flexibly. The microwave rotor 1 is rotated so that the positioning boss 2 4 of the microwave rotor 1 contacts the corresponding positioning boss 1 3 of the microwave stator 2, and the two waveguide ports of the 190° curved waveguide channel of the microwave rotor are respectively aligned with the corresponding two waveguide windows on the microwave stator 2. At the same time, the angle of the positioning cylinder 6 is adjusted. The degree makes the steel ball 19 of the ball positioner 5 stuck in the card slot of the positioning wheel 13 of the positioning cylinder 6, the cam 14 of the positioning cylinder 6 and the rollers 23 of the micro-switch device 7a, 7b are in contact, and the small micro-switch 21 is in a closed state, so that the microwave rotor 1 is positioned in the microwave stator 2. The closed state of the small micro-switch 21 is transmitted from the radar high-frequency room to the control room through the cable connected to the multi-core socket 12, and the high voltage of the radar transmitter can be turned on. The rotating microwave rotor 1 is not fully in place in the microwave stator 2, and the two waveguide ports of the 190° curved waveguide channel of the waveguide switch microwave rotor are respectively deviated from the corresponding two waveguide windows on the microwave stator 2. The small micro-switch 21 is not actuated and is in a disconnected state, and it is forbidden to turn on the high voltage of the radar transmitter, so as to realize the remote monitoring of the position of the microwave rotor of the waveguide switch.

[0008] Compared with the prior art, the present invention has the following significant advantages: (1) the positioning boss 2 4 and the microwave rotor 1 are manufactured in an integrated manner, the positioning boss 1 3 and the microwave stator 2 are manufactured in an integrated structure, the dimensional accuracy is easy to ensure, the positioning boss 1 3 on the microwave stator 2 and the positioning boss 2 4 on the microwave rotor 1 are in contact, so that the waveguide openings of the two 90° curved waveguide channels on the microwave rotor 1 are accurately aligned with the waveguide windows on the microwave stator 2, and the waveguide switch does not need to be repeatedly disassembled and assembled for alignment between the waveguide opening and the waveguide window during assembly, so the engineering implementation is simple and the reliability is high; (2) the ball positioner 5, the positioning cylinder 6 and the micro switch devices 7a, 7b are adopted, and the positioning cylinder 6 and the micro switch devices 7a, 7b are arranged on the microwave stator 2. When the waveguide switch is working to switch the microwave waveguide channel, the microwave rotor 1 of the waveguide switch is positioned in the microwave stator 2, and the position state of the microwave rotor of the waveguide switch is remotely monitored, thereby avoiding the microwave rotor 1 not being completely positioned in the microwave stator 2 and the waveguide openings of the two 90° curved waveguide channels on the microwave rotor 1 not being aligned with the corresponding waveguide windows on the microwave stator 2 due to the mutual contact and wear between the positioning boss 1 3 and the positioning boss 2 4 when the waveguide switch is working to switch the microwave waveguide channel, thereby avoiding the high-power sparking and breakdown phenomenon of the waveguide switch. Therefore, the waveguide switch using the technical solution of the present invention has the characteristics of multi-channel, high power and high reliability.

[0009] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 Waveguide switch.

[0011] Figure 2 Internal view of the microwave waveguide channel of a waveguide switch.

[0012] Figure 3 Waveguide window on the outer side of the waveguide switch microwave stator.

[0013] Figure 4 AA cross-sectional view of the waveguide switch.

[0014] Figure 5 Waveguide switch( Figure 1 )Left view.

[0015] Figure 6 Positioning cylinder.

[0016] Figure 7 Positioning tube( Figure 6 )Sectional view.

[0017] Figure 8 Ball positioner.

[0018] Fig. 9 Micro switch device.

[0019] Markings in the attached drawings: 1-microwave rotor; 2-microwave stator; 3-positioning boss one; 4-positioning boss two; 5-ball positioner; 6-positioning cylinder; 7a, 7b-micro switch device; 8-bracket; 9-handwheel; 10, 11-rolling bearings; 12-multi-core socket; 13-positioning wheel; 14-cam; 15-standard screw; 16-special screw; 17-spring; 18-positioning rod; 19-steel ball; 20-ring; 21-small micro switch; 22-shaft; 23-roller; 24-bushing; 25-support. DETAILED DESCRIPTION

[0020] The present invention relates to a multi-channel high-power waveguide switch, the main design steps of which are as follows (see attached drawings):

[0021] 1. Four waveguide windows A, B, C and D are evenly distributed on the outer side of the microwave stator 2. Two positioning bosses 3 in the shape of arcs with an arc angle of 45° are symmetrically arranged on the microwave stator 2. The center positions of the positioning bosses 3 are respectively located at symmetrical positions between the waveguide windows A and C and the waveguide windows B and D. The positioning bosses 3 and the microwave stator 2 are manufactured as an integrated structure.

[0022] 2. Two 90° curved waveguide channels are symmetrically arranged inside the microwave rotor 1, and two arc-shaped positioning bosses 4 with an arc angle of 45° are symmetrically arranged on the symmetric center lines of the two 90° curved waveguide channels of the microwave rotor 1. The center positions of the positioning bosses 4 are respectively located on the symmetric center lines of the two 90° curved waveguide channels of the microwave rotor 1, and the positioning bosses 4 and the microwave rotor 1 are manufactured as an integrated structure.

[0023] 3. The ball positioner 5 is fixed at the symmetrical center line of the waveguide windows A and C of the microwave stator 2, the positioning cylinder 6 is installed at the symmetrical center line of the two 90° curved waveguide channels of the microwave rotor 1, and the micro switch devices 7a, 7b and the multi-core socket 12 are respectively installed at the symmetrical center lines of the two waveguide windows B and C of the microwave stator and the two waveguide windows B and D of the microwave stator. The microwave rotor 1 is rotated so that the positioning boss 2 4 of the microwave rotor 1 contacts the corresponding positioning boss 1 3 of the microwave stator 2, and the two waveguide ports of the 190° curved waveguide channel of the microwave rotor are respectively aligned with the corresponding two waveguide windows on the microwave stator 2. The angle of the positioning cylinder 6 is adjusted, and the steel ball 19 of the ball positioner 5 is clamped in the clamping groove of the positioning wheel 13 of the positioning cylinder 6, the cam 14 of the positioning cylinder 6 contacts the rollers 23 of the micro switch devices 7a, 7b, and the small micro switch 21 is in a closed state, so that the microwave rotor 1 is positioned in the microwave stator 2.

Claims

1. A multi-channel high-power waveguide switch, characterized in that: Four waveguide windows A, B, C and D are evenly distributed on the outer side of the microwave stator (2); two positioning bosses (3) in the shape of an arc and with an arc angle of 45 degrees are symmetrically arranged on the inner side of the microwave stator (2); the center positions of the positioning bosses (3) are respectively located at symmetrical positions between the waveguide windows A and C and between B and D; two 90° curved waveguide channels are symmetrically arranged inside the microwave rotor (1); two positioning bosses (4) in the shape of an arc and with an arc angle of 45 degrees are symmetrically arranged on the symmetrical center lines of the two 90° curved waveguide channels of the microwave rotor (1); the center positions of the positioning bosses (4) are respectively located at the symmetrical centers of the two 90° curved waveguide channels of the microwave rotor (1) The microwave rotor (1) is manufactured as an integrated structure, the positioning boss 2 (4) and the microwave rotor (1) are manufactured as an integrated structure, the positioning boss 1 (3) and the microwave stator (2) are manufactured as an integrated structure, micro switch devices (7a, 7b) are respectively installed on the symmetrical center lines of the waveguide windows B, C and the waveguide windows B, D of the microwave stator (2), the positioning cylinder (6) is installed on the symmetrical center lines of the two 90° curved waveguide channels of the microwave rotor (1), and the ball positioner (5) is installed on the symmetrical center lines of the waveguide windows A, C of the microwave stator (2), and the elastic force of the spring (17) of the ball positioner (5) is adjusted to make the microwave rotor (1) rotate flexibly and rotate freely. The microwave rotor (1) makes the second positioning boss (4) of the microwave rotor (1) contact with the corresponding first positioning boss (3) of the microwave stator (2), the two waveguide openings of the 90° curved waveguide channel of the microwave rotor (1) are respectively aligned with the two corresponding waveguide windows on the microwave stator (2), the angle of the positioning cylinder (6) is adjusted so that the steel ball (19) of the ball positioner (5) is clamped in the clamping groove of the positioning wheel (13) of the positioning cylinder (6), the cam (14) of the positioning cylinder (6) and the roller (23) of the micro switch device (7a, 7b) are in contact, the small micro switch (21) is in a closed state, and the microwave rotor ( 1) Positioning in the microwave stator (2), the closed state of the small micro switch (21) is transmitted from the radar high frequency room to the control room through the cable connected to the multi-core socket (12), and the radar transmitter high voltage can be turned on. The microwave rotor (1) is not completely in place in the microwave stator (2), and the two waveguide openings of the 90° curved waveguide channel of the waveguide switch microwave rotor (1) are respectively misaligned with the two corresponding waveguide windows on the microwave stator (2). The small micro switch (21) does not operate and is in the disconnected state, and the radar transmitter high voltage is prohibited from being turned on, thereby realizing remote monitoring of the waveguide switch microwave rotor position.

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