An angle-adjustable inertial navigation test platform

Abstract

The utility model relates to the technical field of inertial navigation test, and discloses an angle-adjustable inertial navigation test platform, including a truncated table, the top surface of which is fixed with two support plates, a test structure is arranged above the truncated table, and the test structure includes a movable disk arranged between the two support plates, a rotating shaft is fixed on both sides of the movable disk, the rotating shaft is fixed on the side close to the support plate, and a first gear is fixed on the outer circumferential wall of the rotating shaft on the left side. The utility model drives the truncated table and the movable disk above it to rotate by a driving motor through the setting of the test structure, and the bevel gear meshing with the fixed ring rotates during the rotation of the truncated table, thereby driving the second gear to rotate, and the second gear drives the movable disk to rotate through the transmission of the toothed belt and the first gear, so that the inertial navigation device on the movable disk and its top surface rotates in the horizontal direction and the vertical direction at the same time, thereby testing the inertial navigation device at multiple angles, making the test data more comprehensive and improving the test effect.

Description

Technical Field

[0001] The utility model relates to the technical field of inertial navigation testing, in particular to an angle-adjustable inertial navigation testing platform. Background Art

[0002] Inertial navigation generally refers to the inertial navigation system, which is an autonomous navigation system that does not rely on external information and does not radiate energy to the outside. The basic working principle of inertial navigation is based on Newton's laws of mechanics. By measuring the acceleration of the carrier in the inertial reference system, integrating it with time, and transforming it into the navigation coordinate system, it is possible to obtain information such as speed, yaw angle and position in the navigation coordinate system.

[0003] An existing angle-adjustable inertial navigation test platform (authorization announcement number CN213301252U) has the following defects: the above-mentioned device tests the inertial navigation device by placing the inertial navigation device in a fixed cabin and controlling the position of the fixed cabin in the simulation cabin by adjusting the shaft to obtain a three-dimensional coordinate with the bottom end of the adjustment shaft as the origin. However, this test method makes it difficult to adjust the position of the inertial navigation device at multiple angles, and the measured data is not comprehensive enough, resulting in poor test results of the platform. For this reason, we propose the utility model. Utility Model Content

[0004] The utility model aims to solve the problems existing in the prior art and proposes an angle-adjustable inertial navigation test platform.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An angle-adjustable inertial navigation test platform comprises a truncated table, two support plates are fixed on the top surface of the truncated table, a test structure is arranged above the truncated table, the test structure comprises a movable disk arranged between the two support plates, rotating shafts are fixed on both sides of the movable disk, the rotating shaft and the side close to the support plate are fixed, a first gear is fixed on the outer circular wall surface of the rotating shaft on the left side, a second gear is rotatably arranged on one side of the left support plate, and a toothed belt is meshed between the first gear and the second gear.

[0007] Preferably, a bevel gear is rotatably provided on one side of the second gear, the second gear is coaxial with the bevel gear, a fixing ring is movably sleeved on the outer circumferential wall of the truncated cone, the top surface of the fixing ring is an inclined surface, a plurality of tooth grooves are provided on the inclined surface of the fixing ring, the bevel gear is meshed with the fixing ring through the tooth grooves, and a driving motor is fixed to the bottom surface of the truncated cone.

[0008] Preferably, a fixed plate is fixed to the top surface of the movable plate by bolts, and two clamping plates are fixed to the top surface of the fixed plate by bolts.

[0009] Preferably, a mounting frame is provided below the movable disk, the table is internally rotatably arranged with the mounting frame, the fixing ring is fixed with the top surface of the table, the bottom surface of the table is fitted with the top surface of the internal partition of the mounting frame, and the driving motor is fixed with the internal bottom surface of the mounting frame.

[0010] Preferably, a movable groove is provided on the top surface of the internal partition of the mounting frame, and a plurality of balls are slidably arranged inside the movable groove. The movable groove is annular, and the bottom surface of the truncated table fits with the outer circumferential wall surface of the balls.

[0011] Preferably, a protective shell is fixed to one side of the support plate on the left side, and the first gear, the toothed belt and the second gear are all located inside the protective shell.

[0012] The beneficial effects of the utility model are:

[0013] The inertial navigation test platform, through the setting of the test structure, the staff fixes the inertial navigation device on the top surface of the movable disk, starts the driving motor to drive the truncated table and the movable disk above it to rotate, and the bevel gear meshing with the fixed ring rotates during the rotation of the truncated table, thereby driving the second gear to rotate, and the second gear drives the movable disk to rotate through the transmission of the toothed belt and the first gear, so that the movable disk and the inertial navigation device on the top surface of the movable disk rotate in the horizontal direction and the vertical direction at the same time, so as to test the inertial navigation device at multiple angles, make the test data more comprehensive, and improve the test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the split structure proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the split structure of the movable disk proposed by the utility model;

[0017] Figure 4 The utility model proposed Figure 2 Enlarged structural diagram at A in the middle.

[0018] In the figure: 1. round table; 2. support plate; 201. movable disk; 202. rotating shaft; 203. first gear; 204. second gear; 205. toothed belt; 206. bevel gear; 3. fixing ring; 4. fixing disk; 401. clamping plate; 5. mounting frame; 6. movable groove; 601. ball bearing; 7. protective shell. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Please see attached Figure 1 -Attached Figure 4 An angle-adjustable inertial navigation test platform comprises a truncated table 1, two support plates 2 are fixed on the top surface of the truncated table 1, a test structure is arranged above the truncated table 1, and the test structure comprises a movable disk 201 arranged between the two support plates 2, a rotating shaft 202 is fixed on both sides of the movable disk 201, the rotating shaft 202 is fixed to the side close to the support plate 2, a first gear 203 is fixed to the outer circular wall surface of the left rotating shaft 202, a second gear 204 is rotatably arranged on one side of the left support plate 2, and a toothed belt 205 is meshed between the first gear 203 and the second gear 204.

[0022] In the embodiment, a bevel gear 206 is rotatably provided on one side of the second gear 204, and the second gear 204 is coaxial with the bevel gear 206. A fixed ring 3 is movably sleeved on the outer circumferential wall of the truncated table 1, and the top surface of the fixed ring 3 is an inclined surface. The inclined surface of the fixed ring 3 is provided with a plurality of tooth grooves, and the bevel gear 206 is meshed with the fixed ring 3 through the tooth grooves. A driving motor is fixed to the bottom surface of the truncated table 1, and the driving motor is a motor with a self-locking function. Through the setting of the test structure, the staff fixes the inertial navigation device on the top surface of the movable disk 201, starts the driving motor to drive the truncated table 1 and the movable disk 201 above it to rotate, and the bevel gear 206 meshing with the fixed ring 3 rotates during the rotation of the truncated table 1, thereby driving the second gear 204 to rotate, and the second gear 204 drives the movable disk 201 to rotate through the transmission of the toothed belt 205 and the first gear 203, so that the movable disk 201 and the inertial navigation device on the top surface thereof rotate in the horizontal direction and the vertical direction at the same time, thereby testing the inertial navigation device at multiple angles, making the test data more comprehensive and improving the test effect.

[0023] In the embodiment, a fixed plate 4 is fixed to the top surface of the movable plate 201 by bolts, and two clamping plates 401 are fixed to the top surface of the fixed plate 4 by bolts. When the staff fixes the inertial navigation device, they can place the inertial navigation device between the two clamping plates 401 and rotate the bolts to clamp and fix it. At the same time, the fixed position of the fixed plate 4 on the top surface of the movable plate 201 can be controlled by the bolts to further improve the test effect.

[0024] In the embodiment, a mounting frame 5 is provided below the movable disk 201, the table 1 and the mounting frame 5 are internally rotated, the fixing ring 3 is fixed to the top surface of the table 1, the bottom surface of the table 1 is fitted with the top surface of the internal partition of the mounting frame 5, and the driving motor is fixed to the internal bottom surface of the mounting frame 5. When the table 1 rotates, the mounting frame 5 provides stable support for its rotation, thereby improving the safety of the device.

[0025] In the embodiment, a movable groove 6 is provided on the top surface of the internal partition of the mounting frame 5, and a plurality of balls 601 are slidably arranged inside the movable groove 6. The movable groove 6 is annular, and the bottom surface of the table 1 fits with the outer circular wall surface of the balls 601. The plurality of balls 601 reduce the friction between the bottom surface of the table 1 and the internal partition of the mounting frame 5, so that the table 1 can rotate more smoothly.

[0026] In the embodiment, a protective shell 7 is fixed to one side of the left support plate 2, and the first gear 203, the toothed belt 205 and the second gear 204 are all located inside the protective shell 7. When the first gear 203, the toothed belt 205 and the second gear 204 are transmitting, they can be protected by the protective shell 7 to prevent staff from accidentally touching them, thereby improving the safety of the device.

[0027] Working principle: During use, the staff fixes the inertial navigation device on the top surface of the movable disk 201, starts the driving motor to drive the truncated table 1 and the movable disk 201 above it to rotate, and the bevel gear 206 meshing with the fixed ring 3 rotates during the rotation of the truncated table 1, thereby driving the second gear 204 to rotate, and the second gear 204 drives the movable disk 201 to rotate through the transmission of the toothed belt 205 and the first gear 203, so that the movable disk 201 and the inertial navigation device on the top surface rotate in the horizontal direction and the vertical direction at the same time, so as to test the inertial navigation device at multiple angles, so that the test The data is more comprehensive. When fixing the inertial navigation device, the staff can place the inertial navigation device between the two clamping plates 401 and turn the bolts to clamp and fix it. At the same time, the fixed position of the fixed plate 4 on the top surface of the movable plate 201 can be controlled by the bolts. When the table 1 rotates, the mounting frame 5 provides stable support for its rotation, thereby improving the safety of the device. Several ball bearings 601 reduce the friction between the bottom surface of the table 1 and the internal partition of the mounting frame 5, thereby making the table 1 rotate more smoothly. It can be protected by the protective shell 7 to prevent the staff from accidentally touching it, thereby improving the safety of the device.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An angle-adjustable inertial navigation test platform, comprising a truncated table (1), characterized in that: Two support plates (2) are fixed on the top surface of the truncated table (1), and a test structure is arranged above the truncated table (1), the test structure comprising a movable disk (201) arranged between the two support plates (2), a rotating shaft (202) is fixed on both sides of the movable disk (201), the rotating shaft (202) is fixed to the side close to the support plate (2), a first gear (203) is fixed to the outer circular wall surface of the rotating shaft (202) on the left side, a second gear (204) is rotatably arranged on one side of the left support plate (2), and a toothed belt (205) is meshed between the first gear (203) and the second gear (204).

2. The angle-adjustable inertial navigation test platform according to claim 1, characterized in that: A bevel gear (206) is rotatably provided on one side of the second gear (204); the second gear (204) and the bevel gear (206) are coaxial; a fixed ring (3) is movably sleeved on the outer circumferential wall of the truncated table (1); the top surface of the fixed ring (3) is an inclined surface; a plurality of tooth grooves are provided on the inclined surface of the fixed ring (3); the bevel gear (206) is meshed with the fixed ring (3) via the tooth grooves; and a driving motor is fixed to the bottom surface of the truncated table (1).

3. The angle-adjustable inertial navigation test platform according to claim 2, characterized in that: The top surface of the movable disk (201) is fixed with a fixed disk (4) by means of bolts, and the top surface of the fixed disk (4) is fixed with two clamping plates (401) by means of bolts.

4. The angle-adjustable inertial navigation test platform according to claim 3, characterized in that: A mounting frame (5) is arranged below the movable disk (201); the truncated table (1) and the mounting frame (5) are internally rotatably arranged; the fixing ring (3) is fixed to the top surface of the truncated table (1); the bottom surface of the truncated table (1) is in contact with the top surface of the internal partition of the mounting frame (5); and the driving motor is fixed to the internal bottom surface of the mounting frame (5).

5. The angle-adjustable inertial navigation test platform according to claim 4, characterized in that: The top surface of the internal partition of the mounting frame (5) is provided with a movable groove (6), and a plurality of balls (601) are slidably arranged inside the movable groove (6). The movable groove (6) is annular, and the bottom surface of the truncated table (1) is in contact with the outer circular wall surface of the balls (601).

6. The angle-adjustable inertial navigation test platform according to claim 5, characterized in that: A protective shell (7) is fixed to one side of the support plate (2) on the left side, and the first gear (203), the toothed belt (205) and the second gear (204) are all located inside the protective shell (7).

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