Double variable stroke guide rail for RCS test

Abstract

The utility model relates to a double variable stroke guide rail for RCS test, which comprises a fixed base, a track, a sliding platform deck, a synchronous belt and a driver, the track is arranged on the fixed base in a sliding mode, the sliding platform deck is arranged on the track in a sliding mode, the driver is arranged at one end of the track, and the driver can drive the sliding platform deck and the track to move synchronously and in the same direction through the synchronous belt. The utility model has the beneficial effects that the double-track length stroke motion of the RCS tester can be realized, so that the track length can be shortened on the basis of ensuring that the RCS tester has enough motion stroke, and the RCS tester can be conveniently used for small-size test scenes.

Description

Technical Field

[0001] This utility model relates to the field of RCS testing technology, specifically to a double variable stroke guide rail for RCS testing. Background Technology

[0002] Modern stealth equipment antennas require low RCS design, necessitating radar cross section (RCS) testing and verification during their development and production. Existing RCS testing equipment typically uses dedicated RCS testing instruments that move horizontally along an electrically driven rail. Utilizing the synthetic aperture radar (SAR) imaging principle, they employ a back-projection (BP) imaging algorithm to achieve two-dimensional target imaging measurement. The test data is then transformed from near-field to far-field, and the processed radar signal is combined with the target model to estimate target parameters using mathematical methods.

[0003] In synthetic aperture radar (SAR), azimuth resolution can be significantly improved through synthetic aperture technology. This is because SAR utilizes the relative motion between the radar and the target, achieving high-resolution imaging by taking multiple measurements of the target at different azimuth angles. To meet azimuth resolution requirements, the length of the synthetic array must meet certain conditions. In practical applications, all other things being equal, the longer the synthetic array, the higher the azimuth resolution. However, this also means a longer lateral movement distance for the dedicated RCS testing instrument, requiring a sufficiently long motorized track. Excessively long tracks are inconvenient for small-scale testing scenarios, reducing the overall applicability of the testing device. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a double variable stroke guide rail for RCS testing, which can realize double the track length stroke movement of the RCS tester, thereby shortening the track length while ensuring that the RCS tester has sufficient stroke, so as to be used in small-size testing scenarios.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A double variable stroke guide rail for RCS testing includes a fixed base, a rail, a sliding stage, a timing belt, and a driver. The rail is slidably mounted on the fixed base, the sliding stage is slidably mounted on the rail, and the driver is located at one end of the rail. The driver can drive the sliding stage to move synchronously and in the same direction as the rail via the timing belt.

[0007] Furthermore, the track includes two parallel slide rails, the ends of which are fixedly connected by mounting bases. The two sides of the fixed base correspond one-to-one with the two slide rails. The two sides of the fixed base are tumblingly connected to the top and bottom of the corresponding slide rails by inner rollers. The driver is located on the mounting base at one end of the slide rail.

[0008] Furthermore, the sliding platform includes an outer hub and a connecting plate. The outer hubs are provided on the outer sides of the two slide rails respectively. The tops of the two outer hubs are connected by the connecting plate. The outer hubs are rolled to the top and bottom of the corresponding slide rails by outer rollers.

[0009] Furthermore, both ends of the fixed base are equipped with synchronous belts, and both mounting seats are equipped with synchronous pulleys. The two synchronous belts are respectively wound around the two synchronous pulleys, and both ends of the two synchronous belts are respectively connected to the fixed base and the connecting plate. The driver can drive the synchronous belt at one end of the fixed base to move.

[0010] Furthermore, the driver includes a drive box, a drive motor, a drive gear, a transmission shaft, a worm gear, a worm, a controller, and a drive power supply. One end of the drive box is fixed to a mounting base at one end of the slide rail. The transmission shaft is housed inside the drive box via bearings. The transmission shaft is equipped with a drive gear and a worm gear. The drive motor, controller, and drive power supply are all housed inside the drive box and are electrically connected in sequence. The output end of the drive motor is connected to a worm gear that meshes with the worm gear. The synchronous belt has teeth on its outer surface. The end of the drive box that connects to the mounting base has an opening. The drive gear passes through the opening and meshes with the teeth on the synchronous belt.

[0011] Furthermore, the end of the drive box connected to the mounting base is also equipped with a proximity switch corresponding to the outer hub, and the proximity switch is electrically connected to the controller.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention, through the arrangement of a fixed base, a track, a sliding platform, a synchronous belt, and a driver, enables the driver to drive the sliding platform to move synchronously and in the same direction with the track via the synchronous belt during the testing process. This achieves a double track length travel for the RCS tester, ultimately shortening the track length while ensuring sufficient travel for the RCS tester, making it suitable for small-size testing scenarios and improving the overall applicability of the testing device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a partial structural schematic diagram of the double variable stroke guide rail in this utility model;

[0016] Figure 3 This is a schematic diagram of the external structure of the driver in this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the driver in this utility model.

[0018] In the diagram: 1. Fixed base; 2. Rail; 21. Slide rail; 22. Mounting seat; 3. Sliding platform; 31. Outer hub; 32. Connecting plate; 4. Synchronous belt; 5. Driver; 51. Driver box; 52. Drive motor; 53. Drive gear; 54. Transmission shaft; 55. Worm gear; 6. Bearing; 7. Proximity switch. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0020] like Figure 1 As shown, a double-travel guide rail for RCS testing includes a fixed base 1, a rail 2, a sliding stage 3, a timing belt 4, and a driver 5. The rail 2 is slidably mounted on the fixed base 1, and the sliding stage 3 is slidably mounted on the rail 2. The driver 5 is mounted at one end of the rail 2, and the driver 5 drives the sliding stage 3 to move synchronously and in the same direction as the rail 2 via the timing belt 4. During the test, the RCS tester is mounted on the sliding stage 3 and moves with the sliding stage 3.

[0021] like Figure 1 , Figure 2 As shown, the track 2 includes two parallel slide rails 21. The ends of the two slide rails 21 are fixedly connected by mounting bases 22. The two sides of the fixed base 1 correspond one-to-one with the two slide rails 21. Inner rollers are installed on both sides of the fixed base 1. The two sides of the fixed base 1 are tumblingly connected to the top and bottom of the corresponding slide rails 21 through the inner rollers, so that the track 2 can move relative to the fixed base 1. The driver 5 is installed on the mounting base 22 at one end of the slide rail 21.

[0022] like Figure 2 As shown, the sliding platform 3 includes an outer hub 31 and a connecting plate 32. The outer hubs 31 are provided on the outer sides of the two slide rails 21 respectively. The tops of the two outer hubs 31 are fixedly connected by the connecting plate 32. The RCS tester is mounted on the connecting plate 32. The outer hubs 31 are equipped with outer rollers. The outer hubs 31 are rolled to the top and bottom of the corresponding slide rails 21 through the outer rollers, so that the RCS tester can move relative to the track 2 with the sliding platform 3.

[0023] like Figures 1-2 As shown, both ends of the fixed base 1 are provided with synchronous belts 4, and both mounting seats 22 are equipped with synchronous pulleys. The two synchronous belts 4 are respectively wound around the two synchronous pulleys. Both ends of the two synchronous belts 4 are respectively fixed to the fixed base 1 and the connecting plate 32. The driver 5 is used to drive the synchronous belt 4 at one end of the fixed base 1 to move.

[0024] like Figure 3 , Figure 4As shown, the driver 5 includes a driver box 51, a driver motor 52, a driver gear 53, a transmission shaft 54, a worm gear, a worm 55, a controller, and a power supply. One end of the driver box 51 is fixed to a mounting base 22 at one end of the slide rail 21. The transmission shaft 54 ​​is mounted inside the driver box 51 via a bearing 6. The driver gear 53 and the worm gear are mounted on the transmission shaft 54. The driver motor 52, the controller, and the power supply are all mounted inside the driver box 51 and are electrically connected in sequence. The output end of the driver motor 52 is connected to the worm 55, which meshes with the worm gear, via a coupling. The synchronous belt 4 has teeth on its outer surface. The end of the driver box 51 connected to the mounting base 22 has an opening, through which the driver gear 53 passes and meshes with the teeth on the synchronous belt 4. The drive motor 52 is a forward and reverse motor. During the test, the drive power supply supplies power to the controller. The controller controls the drive motor 52 to drive the worm gear 55 to rotate. The worm gear 55 drives the transmission shaft 54 ​​to rotate through the worm wheel. The transmission shaft 54 ​​drives the synchronous belt 4 to move through the drive gear 53, which in turn drives the outer hub 31 to move. By driving the drive motor 52 to rotate forward and reverse, the RCS tester can be driven to move back and forth with the outer hub 31.

[0025] When the driver 5 drives the synchronous belt 4 at one end of the track 2 to move forward and pulls the outer hub 31 toward the driver 5, the RCS tester moves with the outer hub 31. Since the inner hub is fixed, the synchronous belt 4 at the other end of the track 2 will pull the track 2 to move synchronously and in the same direction as the outer hub 31. When the driver 5 drives the synchronous belt 4 at one end of the track 2 to move in the opposite direction, since the inner hub is fixed, the track 2 will be pushed and cause the driver 5 to move toward the inner hub. The synchronous belt 4 at the other end of the track 2 will then pull the outer hub 31 to move synchronously and in the same direction as the track 2. Throughout the movement, since the outer hub 31 and the track 2 always move synchronously and in the same direction, the travel distance of the outer hub 31 is the distance the outer hub 31 moves relative to the track 2 plus the distance the track 2 moves itself. When the outer hub 31 moves from one end of the track 2 to the other end of the track 2, the travel distance of the outer hub 31 is twice the length of the track 2. This achieves a travel distance of twice the length of the track 2 for the RCS tester. In this way, while ensuring that the RCS tester has sufficient travel distance, the length of the track 2 can be shortened to be used in small-size testing scenarios, thereby improving the overall applicability of the testing device.

[0026] like Figure 3 As shown, a proximity switch 7 corresponding to the outer hub 31 is also installed on one end of the drive box 51 that is connected to the mounting base 22. The proximity switch 7 is electrically connected to the controller. The proximity switch 7 can detect the distance between the outer hub 31 and the driver 5 in real time. When the outer hub 31 moves to the ends of the track 2, the controller can control the drive motor 52 to reverse according to the detection result of the proximity switch 7, thereby realizing the reciprocating movement of the RCS tester.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double variable stroke guide rail for RCS testing, characterized in that: It includes a fixed base (1), a track (2), a sliding platform (3), a timing belt (4), and a driver (5). The track (2) is slidably mounted on the fixed base (1), the sliding platform (3) is slidably mounted on the track (2), and the driver (5) is located at one end of the track (2). The driver (5) can drive the sliding platform (3) to move synchronously and in the same direction as the track (2) through the timing belt (4).

2. The double variable stroke guide rail for RCS testing according to claim 1, characterized in that: The track (2) includes two parallel slide rails (21). The ends of the two slide rails (21) are fixedly connected by mounting bases (22). The two sides of the fixed base (1) correspond one-to-one with the two slide rails (21). The two sides of the fixed base (1) are rolledly connected to the top and bottom of the corresponding slide rails (21) by inner rollers. The driver (5) is located on the mounting base (22) at one end of the slide rail (21).

3. The double variable stroke guide rail for RCS testing according to claim 2, characterized in that: The sliding platform (3) includes an outer hub (31) and a connecting plate (32). The outer hub (31) is provided on the outer side of each of the two slide rails (21). The tops of the two outer hubs (31) are connected by the connecting plate (32). The outer hubs (31) are connected to the top and bottom of the corresponding slide rails (21) by outer rollers.

4. The double variable stroke guide rail for RCS testing according to claim 3, characterized in that: Both ends of the fixed base (1) are provided with synchronous belts (4), and both mounting seats (22) are provided with synchronous pulleys. The two synchronous belts (4) are respectively connected to the two synchronous pulleys. Both ends of the two synchronous belts (4) are respectively connected to the fixed base (1) and the connecting plate (32). The driver (5) can drive the synchronous belt (4) at one end of the fixed base (1) to move.

5. The double variable stroke guide rail for RCS testing according to claim 4, characterized in that: The driver (5) includes a drive box (51), a drive motor (52), a drive gear (53), a transmission shaft (54), a worm gear, a worm (55), a controller, and a drive power supply. One end of the drive box (51) is fixed on the mounting base (22) at one end of the slide rail (21). The transmission shaft (54) is located inside the drive box (51) via a bearing (6). The transmission shaft (54) is provided with a drive gear (53) and a worm gear. The drive motor (52), the controller, and the drive power supply are all located inside the drive box (51). The drive motor (52), the controller, and the drive power supply are electrically connected in sequence. The output end of the drive motor (52) is connected to a worm (55) that meshes with the worm gear. The outer surface of the synchronous belt (4) is provided with gear teeth. The end of the drive box (51) that is connected to the mounting base (22) is provided with an opening. The drive gear (53) passes through the opening and meshes with the gear teeth on the synchronous belt (4).

6. The double variable stroke guide rail for RCS testing according to claim 5, characterized in that: The drive box (51) is connected to the mounting base (22) at one end and is also provided with a proximity switch (7) corresponding to the outer hub (31). The proximity switch (7) is electrically connected to the controller.

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