A high-precision integrated test turntable

Abstract

The present invention discloses a high-precision integrated test turntable, comprising a turntable body and a rotary shaft arranged at the center of the turntable body, a motor is arranged in the turntable body, the motor comprises a motor rotor and a motor stator, the motor stator is fixedly connected to the turntable body, a first bolt is arranged on the motor rotor, the first bolt is connected to the shaft shoulder of the rotary shaft, a convex ring is arranged on the upper part of the rotary shaft, a turntable bearing is arranged on the convex ring, a plurality of second bolts are arranged on the inner ring of the turntable bearing, the turntable bearing is connected to the convex ring through the plurality of second bolts, the convex ring is provided with a plurality of third bolts, the third bolts are connected with a test table, an angle measuring element is connected to the lower part of the rotary shaft, and a controller is arranged in the turntable body. The present invention integrates the test turntable with electrical components such as a controller, so that the turntable occupies a small space, and can be applied to some occasions where the test environment space is limited and needs to be frequently carried.

Description

Technical Field

[0001] The invention relates to the technical field of inertial navigation test equipment, and in particular to a high-precision integrated test turntable. Background Art

[0002] Inertial navigation technology is a fully autonomous navigation technology developed in the mid-20th century. It measures the angular velocity and acceleration information of the carrier relative to the inertial space through the inertial measurement unit, and automatically calculates the carrier's instantaneous velocity and position information using Newton's laws of motion. It has the characteristics of not relying on external information, not radiating energy to the outside world, not being disturbed, and good concealment. It can continuously provide all the navigation and guidance parameters (position, linear velocity, angular velocity, attitude angle) of the carrier, and is widely used in aerospace, aviation, navigation and other fields.

[0003] Platform-based inertial navigation uses an inertial navigation platform to simulate a navigation coordinate system. It is a dead reckoning navigation method, that is, the position of the next point is deduced from the position of a known point based on the continuously measured heading angle and velocity of the vehicle, thereby continuously measuring the current position of the moving object.

[0004] A traditional test turntable usually consists of a test turntable and a measurement and control system. The test turntable consists of a test platform, an axis system, a support component, a drive component, etc., and is used to provide a test environment for inertial navigation system testing; the measurement and control system consists of electronic components including a driver, a power supply, etc., and is used to control and test the motion state of the turntable. Traditional test turntables often have the following defects: 1. The test turntable and the measurement and control system are often set separately, which causes the turntable to occupy a large space and is not easy to apply to some test environments with limited space and frequent transportation; 2. The test turntable and the measurement and control system are combined into an integrated setting, and often cannot take into account high rotation accuracy during testing.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0006] In view of the above technical problems in the related art, the present invention proposes a high-precision integrated test turntable, which can solve the above problems.

[0007] To achieve the above technical objectives, the technical solution of the present invention is implemented as follows:

[0008] A high-precision integrated test turntable, comprising a turntable body and a rotating shaft arranged at the center of the turntable body, a motor is arranged in the turntable body, the motor comprises a motor rotor and a motor stator, the motor stator is fixedly connected to the turntable body, a first bolt is arranged on the motor rotor, the first bolt is connected to the shoulder of the rotating shaft, a convex ring is arranged on the upper part of the rotating shaft, a turntable bearing is arranged on the convex ring, a plurality of second bolts are arranged on the inner ring of the turntable bearing, the turntable bearing is connected to the convex ring through a plurality of the second bolts, the convex ring is provided with a plurality of third bolts, the third bolts are connected to a test table, an angle measuring element is connected to the lower part of the rotating shaft, a controller is arranged in the turntable body, a human-machine interaction interface, a power button and an enable button are arranged on one side of the turntable body, and the controller is electrically connected to the motor, the angle measuring element, the human-machine interaction interface, the power button and the enable button respectively.

[0009] Furthermore, the angle measurement resolution of the side angle element is 24 bits, and the angle measurement accuracy is 2″.

[0010] Furthermore, the side angle element is a grating encoder.

[0011] Furthermore, the number of the second bolts is 4, the number of the third bolts is 8, and the convex ring is connected to the turntable bearing and the test table respectively through the 8 third bolts.

[0012] Furthermore, the second bolts and the third bolts are staggered and evenly distributed on the inner ring of the slewing bearing.

[0013] Furthermore, an adjusting washer is provided between the shoulder of the rotary shaft and the motor rotor.

[0014] Furthermore, a circular bubble is arranged at the center of the upper surface of the test table.

[0015] Furthermore, a conductive slip ring is arranged inside the rotating shaft.

[0016] Furthermore, the bottom end of the turntable body is detachably connected with a universally adjustable foot.

[0017] Furthermore, the turntable body includes a front panel, a rear panel and two side panels, the front panel is provided with the human-computer interaction interface, a power button and an enable button, the inner wall of the side panel is provided with a controller and a power supply, and the rear panel is provided with a power socket.

[0018] Furthermore, heat dissipation openings are provided on both side panels of the turntable body.

[0019] Furthermore, a movable handle is provided on the outer wall of the side panel.

[0020] Beneficial effects of the present invention:

[0021] 1. The present invention integrates the turntable with electrical components such as a controller, thereby reducing the spatial size of the turntable, so that the turntable can be used in some test environments with limited space and requiring frequent transportation.

[0022] 2. The motor rotor of the present invention rotates, and the rotating shaft is driven to rotate by the first bolt. The convex ring, the turntable bearing and the test table are connected by the third bolt, so that the rotating shaft directly drives the test table to rotate, and a higher rotation accuracy of the shaft system can be obtained.

[0023] 3. The angle measuring resolution of the angle measuring element of the present invention is 24 bits, and the angle measuring accuracy is 2", which can ensure a higher measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a cross-sectional schematic diagram of a high-precision integrated test turntable according to an embodiment of the present invention.

[0026] Figure 2 This is a front view of a high-precision integrated test turntable according to an embodiment of the present invention.

[0027] Figure 3 It is a side view of a high-precision integrated test turntable according to an embodiment of the present invention.

[0028] In the figure: 1. turntable body, 2. rotating shaft, 3. motor, 31. motor rotor, 32. motor stator, 4. first bolt, 5. convex ring, 6. turntable bearing, 7. second bolt, 8. third bolt, 9. test table, 10. angle measuring element, 11. power supply, 12. round bubble, 13. controller, 14. human-computer interaction interface, 15. power button, 16. enable button, 17. conductive slip ring, 18. heat dissipation port, 19. adjustable foot, 20 moving handle. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0030] like Figure 1-3 As shown, a high-precision integrated test turntable according to an embodiment of the present invention includes a turntable body 1 and a rotary shaft 2 arranged at the center of the turntable body 1, a motor 3 is arranged in the turntable body 1, and the motor 3 includes a motor rotor 31 and a motor stator 32, and the motor stator 32 is fixedly connected to the turntable body 1, and a first bolt 4 is arranged on the motor rotor 31, and the first bolt 4 is connected to the shoulder of the rotary shaft 2, and a convex ring 5 is arranged on the upper part of the rotary shaft 2, and a turntable bearing 6 is arranged on the convex ring 5, and a plurality of turntable bearings are arranged on the inner ring of the turntable bearing 6. The turntable bearing 6 is connected to the convex ring 5 through a plurality of second bolts 7, the convex ring 5 is provided with a plurality of third bolts 8, the third bolts 8 are connected to a test table 9, the lower part of the rotating shaft 2 is connected to an angle measuring element 10, a controller 13 is provided in the turntable body 1, a human-machine interaction interface 14, a power button 15 and an enable button 16 are provided on one side of the turntable body 1, and the controller 13 is electrically connected to the motor 3, the angle measuring element 10, the human-machine interaction interface 14, the power button 15 and the enable button 16 respectively.

[0031] In a specific embodiment of the present invention, the angle measurement resolution of the side angle element 10 is 24 bits, and the angle measurement accuracy is 2".

[0032] In a specific embodiment of the present invention, the side angle element 10 is a grating encoder.

[0033] In a specific embodiment of the present invention, the number of the second bolts 7 is 4, the number of the third bolts 8 is 8, and the convex ring 5 is connected to the turntable bearing 6 and the test table 9 respectively through the 8 third bolts 8.

[0034] In a specific embodiment of the present invention, the second bolts 7 and the third bolts 8 are staggered and evenly distributed on the inner ring of the slewing bearing 6 .

[0035] In a specific embodiment of the present invention, an adjusting washer is provided between the shoulder of the rotary shaft 2 and the motor rotor 3 .

[0036] In a specific embodiment of the present invention, a circular water bubble 12 is provided at the center of the upper surface of the test table 9 .

[0037] In a specific embodiment of the present invention, a conductive slip ring 17 is disposed inside the rotary shaft 2 .

[0038] In a specific embodiment of the present invention, a universally adjustable foot 19 is detachably connected to the bottom end of the turntable body 1 .

[0039] In a specific embodiment of the present invention, the turntable body 1 includes a front panel, a rear panel and two side panels, the front panel is provided with the human-computer interaction interface 14, the power button 15 and the enable button 16, the inner wall of the side panel is provided with a controller 13 and a power supply 11, and the rear panel is provided with a power socket.

[0040] In a specific embodiment of the present invention, heat dissipation openings 18 are disposed on both side panels of the turntable body 1 .

[0041] In a specific embodiment of the present invention, a moving handle 20 is provided on the outer wall of the side panel.

[0042] In order to facilitate understanding of the above technical solutions of the present invention, the above technical solutions of the present invention are described in detail below through specific usage methods.

[0043] In specific use, according to a high-precision integrated test turntable of the present invention, the test table 9 is adjusted to a horizontal level through the circular water bubble 12, the device to be tested is fixed on the test table 9, the power button 15 and the enable button 16 are pressed in sequence, and the controller 13 control system starts to run according to the user's instructions on the human-machine interface 14. At this time, the motor rotor 31 drives the rotating shaft 2 to rotate through the first bolt 4, and the convex ring 5, the turntable bearing 6 and the test table 9 are connected through the third bolt 8, so that the rotating shaft 2 drives the test table 9 to rotate, and the rotation accuracy of the rotating shaft 2 can reach 1", the angle measurement resolution of the angle measuring element 10 is 24 bits, and the accuracy of the angle measuring element 10 can reach 1", combined with the controller 13 and other electrical components, through the closed-loop feedback control method, it is ensured that the position accuracy of the rotating shaft reaches 2", and the position repeatability accuracy reaches 1", the user data and the table data are transmitted through the conductive slip ring 17, and the conductive slip ring 17 ensures that the transmission cable is not entangled during the rotation of the rotating shaft 2, and finally the measured data information is reflected through the human-machine interface 14.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision integrated test turntable, comprising a turntable body (1) and a rotary shaft (2) arranged at the center of the turntable body (1), It is characterized in that A motor (3) is arranged in the turntable body (1), the motor comprising a motor rotor (31) and a motor stator (32), the motor stator (32) being fixedly connected to the turntable body (1), the motor rotor (31) being provided with a first bolt (4), the first bolt (4) being connected to the shaft shoulder of the rotary shaft (2), the upper part of the rotary shaft (2) being provided with a convex ring (5), a turntable bearing (6) being provided on the convex ring (5), a plurality of second bolts (7) being provided on the inner ring of the turntable bearing (6), the turntable bearing (6) being connected to the convex ring (5) via the plurality of second bolts (7), the convex ring (5) being provided with a plurality of third bolts (8), the third bolt (8) is connected to a test table (9), the lower part of the rotary shaft (2) is connected to an angle measuring element (10), a controller (13) is arranged in the turntable body (1), a human-machine interaction interface (14), a power button (15) and an enable button (16) are arranged on one side of the turntable body (1), the controller (13) is electrically connected to the motor (3), the angle measuring element (10), the human-machine interaction interface (14), the power button (15) and the enable button (16), respectively, the angle measuring element (10) has an angle measuring resolution of 24 bits and an angle measuring accuracy of 2", and the angle measuring element (10) is a grating encoder.

2. A high-precision integrated test turntable according to claim 1, It is characterized in that The number of the second bolts (7) is 4, the number of the third bolts (8) is 8, and the convex ring (5) is connected to the turntable bearing (6) and the test table (9) respectively via the 8 third bolts (8).

3. A high-precision integrated test turntable according to claim 2, It is characterized in that The second bolts (7) and the third bolts (8) are staggered and evenly distributed on the inner ring of the slewing bearing (6).

4. The high-precision integrated test turntable according to claim 1, It is characterized in that An adjusting washer is provided between the shaft shoulder of the rotary shaft (2) and the motor rotor (31).

5. The high-precision integrated test turntable according to claim 1, It is characterized in that A circular water bubble (12) is arranged at the center of the upper surface of the test table (9).

6. The high-precision integrated test turntable according to claim 1, It is characterized in that A conductive slip ring (17) is arranged inside the rotary shaft (2).

7. The high-precision integrated test turntable according to claim 1, It is characterized in that The bottom end of the turntable body (1) is detachably connected to a universally adjustable foot (19).

8. The high-precision integrated test turntable according to claim 1, It is characterized in that The turntable body (1) comprises a front panel, a rear panel and two side panels; the front panel is provided with the human-machine interaction interface (14), a power button (15) and an enable button (16); the inner walls of the side panels are provided with a controller (13) and a power supply (11); and the rear panel is provided with a power socket.

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