A device and method for testing slip ring network signal performance

Abstract

The invention discloses a device and method for testing the performance of a slip ring network signal. The device comprises two slip rings, a rotating turntable, a bit error tester and a computer device. The two slip rings comprise a slip ring to be tested and a tooling slip ring. The rotating turntable comprises a turntable, a driving motor and a rotating shaft. The driving motor is fixed on the turntable. The rotating shaft is fixed to the output shaft of the driving motor. A rotating flange is fixed to one end of the rotating shaft away from the driving motor. A turntable tooling is arranged on the rotating flange. The slip ring to be tested is installed by the turntable tooling. The tooling slip ring is installed on the turntable. A bearing is fixed to the stator end of the tooling slip ring. The inner ring of the bearing is fixed to the rotor end of the tooling slip ring. The rotor end of the tooling slip ring is also fixedly connected to the rotating shaft. The device solves the problem of connecting a conductive slip ring with a bit error tester, selecting a communication interface and a baud rate, testing the dynamic bit error rate of a slip ring channel signal transmission, and judging the performance of the slip ring network signal when the slip ring is rotating.

Description

Technical Field

[0001] The invention relates to the field of electrical equipment signal transmission, and in particular to a device and method for testing slip ring network signal performance. Background Art

[0002] Slip rings are electrical components that are responsible for connecting rotating bodies and transmitting energy and signals. According to the transmission medium, slip rings are divided into electric slip rings, fluid slip rings, and smooth slip rings, which can also be collectively referred to as "rotational connection" or "rotational connection". Slip rings are usually installed at the rotating center of the equipment and are mainly composed of two parts: rotating and stationary. The rotating part is connected to the rotating structure of the equipment and rotates with it, which is called the "rotor", and the stationary part is connected to the energy of the fixed structure of the equipment, which is called the "stator".

[0003] After the existing slip rings are produced, the bit error rate of the slip rings needs to be tested, and unqualified products need to be eliminated. The existing technical means to test the bit error rate of the slip rings is to connect the two ends of the slip ring to the output and input ends of the bit error tester, open the matching computer software, set the script, and then click the test to send and receive data through the bit error tester. The data transmission process passes through the slip ring. After the bit error tester completes the monitoring, a report will be generated in the computer software, thereby achieving the purpose of testing the performance of the slip ring network signal. At that time, in the above scheme, only the static bit error rate of the slip ring can be detected, but what we actually need to detect should be the dynamic bit error rate generated by the rotation of the slip ring during operation. When the existing detection methods are not very good for the detection of the dynamic bit error rate of the slip ring, a solution is proposed below to the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a device and method for testing the performance of a slip ring network signal. The problem to be solved is to connect a conductive slip ring with a bit error tester when the slip ring is rotating, select a communication interface and a baud rate, test the dynamic bit error rate of the slip ring channel signal transmission, and judge the performance of the slip ring network signal.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A device for testing the signal performance of a slip ring network comprises two slip rings, a rotating turntable, a bit error tester and a computer device, wherein the two slip rings comprise a slip ring to be tested and a tooling slip ring, the rotating turntable comprises a turntable, a driving motor and a rotating shaft, the driving motor is fixed on the turntable, the rotating shaft is fixed to the output shaft of the driving motor, a rotating flange is fixed to the end of the rotating shaft away from the driving motor, a turntable tooling is arranged on the rotating flange, the slip ring to be tested is installed by the turntable tooling, the turntable tooling comprises a fixing plate 1 and a fixing plate 2, a trapezoidal slide groove is symmetrically provided on the side wall of the rotating flange, a trapezoidal slider is slidably arranged in the trapezoidal slide groove, the fixing plate 1 and the fixing plate 2 are both fixed to the trapezoidal slider by bolts, extension plates are fixed to both ends of the fixing plate 1 and the fixing plate 2, two adjacent extension plates are detachably connected, one The extension plate on the side is provided with a storage groove, and a spring groove is symmetrically provided in the storage groove, a spring 1 is arranged in the spring groove, one end of the spring 1 is fixed in the spring groove, and a clamping block 1 is fixed at the other end of the spring 1, and a connecting column is fixed on the extension plate on the other side, and a clamping groove matching with the clamping block 1 is arranged on the side wall of the connecting column, and a connecting groove is also arranged on the inner bottom wall of the storage groove, and the connecting groove passes through the extension plate and the fixed plate 1 respectively, a spring 2 is arranged in the connecting groove, one end of the spring 2 is fixed on the side wall of the connecting groove, and a clamping block 2 is fixed at the other end of the spring 2, and the clamping block 2 is slidably arranged in the connecting groove, the tooling slip ring is installed on a turntable, a bearing 1 is fixed to the stator end of the tooling slip ring, the inner ring of the bearing 1 is fixed to the rotor end of the tooling slip ring, and the rotor end of the tooling slip ring is also fixedly connected to the rotating shaft.

[0007] Preferably, a connecting rod is fixed on the side wall of the turntable, a connecting plate is slidably provided on the end of the connecting rod away from the turntable, the connecting plate contacts the stator end of the slip ring to be tested away from the turntable tooling, a threaded hole communicating with the connecting rod is formed on the connecting plate, a fixing bolt is fitted in the inner thread of the threaded hole, and a rubber pad is also fixed on the contact end between the connecting plate and the slip ring to be tested.

[0008] Preferably, a rubber pad 2 is fixed on the inner walls of the fixing plate 1 and the fixing plate 2, and a rubber block is fixed on the bottom of the clamping block 2.

[0009] Preferably, a power supply is installed on the turntable, and the power supply is electrically connected to the drive motor. A speed control switch is also installed on the turntable, and the speed control switch is also electrically connected to the drive motor.

[0010] A method for testing the signal performance of a slip ring network, characterized in that the test is performed according to the following steps:

[0011] The first step is to quickly install and fix the slip ring to be tested through the turntable fixture;

[0012] The second step is to connect the rotor conductor of the slip ring to be tested with the rotor end conductor of the tooling slip ring;

[0013] The third step is to connect the stator end wire of the slip ring to be tested to a port of the bit error tester;

[0014] Step 4: Connect the stator end wire of the tooling slip ring to the other port of the bit error tester;

[0015] The fifth step is to start the drive motor through the power supply on the turntable, and then use the speed control switch on the turntable to adjust the drive motor to a suitable speed. The output shaft of the drive motor will drive the rotating shaft to rotate, and the rotor end of the tooling slip ring and the slip ring to be tested will be driven to rotate through the rotating shaft. The rotor end of the tooling slip ring and the slip ring to be tested rotates to simulate the working state of the slip ring;

[0016] Step 6. Start the computer device, use the pre-installed script in the computer device, set the script, click Connect, and after the communication is normal, click Start Test;

[0017] Step 7. After the automatic test is completed, the experimental results will pop up on the computer device interface. Click to generate the experimental report.

[0018] Beneficial effect: Since the bit error rate of each produced slip ring needs to be tested, the existing slip rings to be tested are fixed on the rotating flange by bolts, which is cumbersome to install. By changing the bolt fixation to a detachable component that can be quickly connected, the slip ring to be tested can be quickly installed, and the components can be replaced more conveniently according to the slip rings of different specifications, which greatly improves the detection efficiency and reduces the detection cost.

[0019] By using the driving motor on the turntable to drive the slip ring to rotate, it is possible to simulate some of the actual working conditions of the slip ring, substitute it into the bit error test instrument, perform the packet loss test, observe the experimental result data intuitively, and test the pass rate of the network performance of the slip ring. This changes the previous method of only being able to detect the static bit error rate. By detecting the dynamic bit error rate of the slip ring, the pass rate of the slip ring is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment;

[0021] Figure 2 It is a schematic diagram for showing the internal structure of the fixing plate 1 and the fixing plate 2 on the rotating flange.

[0022] 1. Slip ring 1; 2. Rotating turntable; 3. Error code tester; 4. Computer equipment; 5. Slip ring to be tested; 6. Tooling slip ring; 7. Turntable; 8. Driving motor; 9. Rotating shaft; 10. Rotating flange; 11. Turntable tooling; 12. Fixed plate 1; 13. Fixed plate 2; 14. Trapezoidal slide groove; 15. Trapezoidal slider; 16. Extension plate; 17. Storage groove; 18. Spring groove; 19. Spring 1; 20. Block 1; 21. Connecting column; 22. Connecting groove; 23. Spring 2; 24. Block 2; 25. Bearing 1; 26. Connecting rod; 27. Connecting plate; 28. Threaded hole; 29. ​​Fixing bolt; 30. Rubber pad 1; 31. Rubber pad 2; 32. Rubber block; 33. Power supply; 34. Speed ​​control switch; 35. Slot. DETAILED DESCRIPTION

[0023] The following is only a preferred embodiment of the present invention, and the protection scope is not limited to this embodiment. All technical solutions under the concept of the present invention should belong to the protection scope of the present invention. At the same time, it should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

[0024] See Figures 1 to 2 As shown, a device for testing the signal performance of a slip ring network comprises two slip rings 1, a rotating turntable 2, a bit error tester 3 and a computer device 4. The two slip rings 1 comprise a slip ring to be tested 5 and a tooling slip ring 6. The rotating turntable 2 comprises a turntable 7, a driving motor 8 and a rotating shaft 9. The driving motor 8 is fixed on the turntable 7. The rotating shaft 9 is fixed to the output shaft of the driving motor 8. A rotating flange 10 is fixed to the end of the rotating shaft 9 away from the driving motor 8. A turntable 7 tooling is arranged on the rotating flange 10. The slip ring 5 to be tested is installed by the turntable 7 tooling. The turntable 7 tooling comprises a fixing plate 12 and a fixing plate 2 13. Trapezoidal grooves 14 are symmetrically provided on the side wall of the rotating flange 10. A trapezoidal slider 15 is slidably arranged in the trapezoidal groove 14. The fixing plate 12 and the fixing plate 2 13 are both fixed to the trapezoidal slider 15 by bolts. The most suitable fixing plate 12 and the fixing plate 2 13 can be fixed by bolts according to the size specification of the slip ring 5 to be tested.

[0025] An extension plate 16 is fixed to both ends of the fixing plate 12 and the fixing plate 2 13, and two adjacent extension plates 16 are detachably connected. Since the existing slip ring 5 to be tested is fixed to the rotating flange 10 by bolts, the installation is cumbersome. By changing the bolt fixation to a detachable component that can be quickly connected, the slip ring 5 to be tested is quickly installed, and the components can be replaced more conveniently according to the slip rings of different specifications, which greatly improves the detection efficiency and reduces the detection cost.

[0026] A storage groove 17 is provided on the extension plate 16 on one side, and a connecting column 21 is fixed on the extension plate 16 on the other side. When it is necessary to fix the fixing plate 12 and the fixing plate 2 13, the extension plate 16 on one side is pushed, and the extension plate 16 will drive the trapezoidal slider 15 to slide in the trapezoidal slide groove 14, thereby supporting the fixing plate 12 and the fixing plate 2 13. The continuous sliding of the extension plate 16 makes the connecting column 21 of the extension plate 16 on one side be inserted into the storage groove 17, and the storage groove 17 is symmetrically provided with a spring groove 18, and a spring 19 is arranged in the spring groove 18, one end of the spring 19 is fixed in the spring groove 18, and a block 1 20 is fixed on the other end of the spring 19, and the continuous sliding of the connecting column 21 in the storage groove 17 makes the connecting column 21 contact with the block 1 20 contacts, the block 20 will be squeezed by the connecting column 21 and enter the spring groove 18, the spring 19 in the spring groove 18 will be squeezed to generate elastic force, the side wall of the connecting column 21 is provided with a slot 35 matched with the block 20, when the connecting column 21 slides to the specified position, the slot 35 on the connecting column 21 will contact the block 20, at this time the block 20 is no longer squeezed by the connecting column 21, the block 20 is bounced into the slot 35 by the elastic force of the spring 19, thereby realizing the fixation between the two extension plates 16, and also realizing that the fixing plate 12 and the fixing plate 2 13 clamp the rotor end of the slip ring 5 to be tested, the inner walls of the fixing plate 12 and the fixing plate 2 13 are fixed with rubber pads 2 31, and the rubber pads 2 31 can be used to better clamp the slip ring 5 to be tested.

[0027] A connecting groove 22 is also provided on the inner bottom wall of the storage groove 17. The two connecting grooves 22 are respectively arranged on the fixing plate 12 and the fixing plate 2 13. A spring 23 is arranged in the connecting groove 22. One end of the spring 23 is fixed to the side wall of the connecting groove 22. The other end of the spring 23 is fixed with a block 24. The block 24 is slidably arranged in the connecting groove 22. In the initial state, one end of the block 24 is arranged in the storage groove 17. As the connecting column 21 slides in the storage groove 17, the connecting column 21 pushes the block 24 downward to move. The second block 24 is provided with a rubber block 32 at the bottom thereof, and the second block 24 drives the rubber block 32 to slide downward, so that the rubber block 32 passes through the connecting groove 22 and contacts with the slip ring 5 to be tested. The slip ring 5 to be tested can be better fixed by the contact between the rubber block 32 and the slip ring 5 to be tested. The second block 24 will also pull the second spring 23 during the sliding process, so that the second spring 23 generates elastic force. When the connecting column 21 of the slip ring 5 to be tested needs to be replaced and leaves the storage groove 17, the second block 24 will be reset by the elastic force of the second spring 23.

[0028] A connecting rod 26 is fixed on the side wall of the turntable 7, and a connecting plate 27 is slidably provided at one end of the connecting rod 26 away from the turntable 7. When one end of the slip ring 5 to be tested has been fixed to the rotating flange 10, the connecting plate 27 is slid, and the connecting plate 27 contacts the stator end of the slip ring 5 to be tested away from the turntable 7 tooling. A rubber pad 30 is also fixed on the contact end of the connecting plate 27 and the slip ring 5 to be tested. The connecting plate 27 will electrically drive the rubber pad 30 to contact the slip ring 5 to be tested. By fixing the stator end of the slip ring 5 to be tested, the stator end of the slip ring 5 to be tested is prevented from being driven to rotate when the rotor end of the slip ring 5 to be tested rotates. A threaded hole 28 communicating with the connecting rod 26 is opened on the connecting plate 27, and a fixing bolt 29 is matched with the inner thread of the threaded hole 28. When the connecting plate 27 is moved to the specified position, the fixing bolt 29 is used to fix the connecting plate 27 on the connecting rod 26.

[0029] The tooling slip ring 6 is installed on the turntable 7. The stator end of the tooling slip ring 6 is fixed with a bearing 25. The inner ring of the bearing 25 is fixed to the rotor end of the tooling slip ring 6. The rotor end of the tooling slip ring 6 is also fixedly connected to the rotating shaft 9. The rotor wire of the slip ring 5 to be tested is connected to the rotor end wire of the tooling slip ring 6, and the stator end wire of the slip ring 5 to be tested is connected to one port of the bit error tester 3. The stator end wire of the tooling slip ring 6 is connected to the other port of the bit error tester 3. A power supply 33 is installed on the turntable 7. The power supply 33 is electrically connected to the drive motor 8. When it is needed At the beginning of the test, the drive motor 8 is started by the power supply 33. A speed control switch 34 is also installed on the turntable 7. The speed control switch 34 is also electrically connected to the drive motor 8. The drive motor 8 is adjusted to a suitable speed by using the speed control switch 34. The output shaft of the drive motor 8 rotates the rotating shaft 9. The rotating shaft 9 drives the rotor and the rotating flange 10 of the tooling slip ring 6 to rotate. The rotor end of the slip ring 5 to be tested is driven to rotate through the rotating flange 10, thereby realizing the simulation of the working state of the slip ring, so that the dynamic bit error rate of the slip ring can be detected.

[0030] A method for testing the signal performance of a slip ring network is performed according to the following steps:

[0031] The first step is to install and fix the slip ring 5 to be tested through the turntable 7 tooling to achieve rapid installation;

[0032] The second step is to connect the rotor wire of the slip ring 5 to be tested with the rotor end wire of the tooling slip ring 6 to realize the series connection of the slip ring 5 to be tested and the tooling slip ring 6;

[0033] The third step is to connect the stator end wire of the slip ring 5 to be tested to a port of the bit error tester 3;

[0034] The fourth step is to connect the stator end wire of the tooling slip ring 6 to the other port of the bit error tester 3. The stator ends of the slip ring 5 to be tested and the tooling slip ring 6 are both stationary ends, so they can be connected to the bit error tester 3 which does not rotate, and the bit error tester 3 is used to detect the dynamic bit error rate of the two slip rings 1;

[0035] The fifth step is to start the driving motor 8 through the power supply 33 on the turntable 7, and then use the speed switch 34 on the turntable 7 to adjust the driving motor 8 to a suitable speed. The output shaft of the driving motor 8 will drive the rotating shaft 9 to rotate, and the tooling slip ring 6 and the rotor end of the slip ring 5 to be tested will be driven to rotate through the rotating shaft 9. The tooling slip ring 6 and the rotor end of the slip ring 5 to be tested are rotated to simulate the working state of the slip ring. The tooling slip ring 6 will be installed on the rotating shaft 9 for a long time, and the slip ring 5 to be tested will be replaced after each inspection, so as to realize the batch inspection of the slip ring 5 to be tested. A detector for the number of rotations will also be connected to the tooling slip ring 6. When the tooling slip ring 6 is close to being scrapped after rotating tens of thousands of times, the tooling slip ring 6 will be replaced;

[0036] Step 6: Start the computer device 4, use the script pre-installed in the computer device 4 to set the script, click Connect, and after the communication is normal, click Start Test;

[0037] Step 7: After the automatic test is completed, the interface of the computer device 4 will pop up the test results. Click to generate a test report. According to the test report, the unqualified slip rings 5 ​​to be tested are removed and replaced with new slip rings 5 ​​to be tested through the turntable 7 tooling.

Claims

1. A device for testing the signal performance of a slip ring network, characterized in that: The invention comprises two slip rings (1), a rotating turntable (2), a bit error tester (3) and a computer device (4), wherein the two slip rings (1) comprise a slip ring to be tested (5) and a tooling slip ring (6), the rotating turntable (2) comprises a turntable (7), a driving motor (8) and a rotating shaft (9), the driving motor (8) is fixed on the turntable (7), the rotating shaft (9) is fixed to the output shaft of the driving motor (8), a rotating flange (10) is fixed to one end of the rotating shaft (9) away from the driving motor (8), a turntable tooling (11) is arranged on the rotating flange (10), the slip ring to be tested (5) is installed by means of the turntable tooling (11), and the turntable tooling (11) comprises The invention comprises a fixing plate 1 (12) and a fixing plate 2 (13), a trapezoidal slide groove (14) is symmetrically provided on the side wall of the rotating flange (10), a trapezoidal slide groove (14) is slidably provided with a trapezoidal slider (15), the fixing plate 1 (12) and the fixing plate 2 (13) are both fixed to the trapezoidal slider (15) by bolts, an extension plate (16) is fixed at both ends of the fixing plate 1 (12) and the fixing plate 2 (13), two adjacent extension plates (16) are detachably connected, a storage groove (17) is provided on one side of the extension plate (16), a spring groove (18) is symmetrically provided in the storage groove (17), a spring groove (18) is provided in the spring groove (18), (19), one end of the spring 1 (19) is fixed in the spring groove (18), the other end of the spring 1 (19) is fixed with a card block 1 (20), a connecting column (21) is fixed on the extension plate (16) on the other side, a card slot (35) matching with the card block 1 (20) is provided on the side wall of the connecting column (21), a connecting groove (22) is also provided on the inner bottom wall of the storage groove (17), the connecting groove (22) respectively penetrates the extension plate (16) and the fixing plate 1 (12), a spring 2 (23) is arranged in the connecting groove (22), one end of the spring 2 (23) is fixed on the side wall of the connecting groove (22), the spring 2 (23) is provided with a card slot (35) matching with the card block 1 (20), and the inner bottom wall of the storage groove (17) is provided with a connecting groove (22), the connecting groove (22) respectively penetrates the extension plate (16) and the fixing plate 1 (12), a spring 2 (23) is arranged in the connecting groove (22), one end of the spring 2 (23) is fixed on the side wall of the connecting groove (22), and the spring 2 (23) is provided with a card slot (35) matching with the card block 1 (20) A second clamping block (24) is fixed at the other end, and the second clamping block (24) is slidably arranged in the connecting groove (22). The tooling slip ring (6) is installed on the turntable (7). A bearing 1 (25) is fixed at the stator end of the tooling slip ring (6). The inner ring of the bearing 1 (25) is fixed to the rotor end of the tooling slip ring (6). The rotor end of the tooling slip ring (6) is also fixedly connected to the rotating shaft (9). The rotor wire of the slip ring to be tested (5) is connected to the rotor end wire of the tooling slip ring (6). The stator end wire of the slip ring to be tested (5) is connected to one port of the bit error tester (3), and the stator end wire of the tooling slip ring (6) is connected to the other port of the bit error tester (3).

2. A device for testing the signal performance of a slip ring network according to claim 1, characterized in that: A connecting rod (26) is fixed on the side wall of the turntable (7), and a connecting plate (27) is slidably provided on the end of the connecting rod (26) away from the turntable (7). The connecting plate (27) contacts the stator end of the slip ring (5) to be tested away from the turntable (7) tooling. A threaded hole (28) communicating with the connecting rod (26) is formed on the connecting plate (27), and a fixing bolt (29) is matched with the internal thread of the threaded hole (28). A rubber pad (30) is also fixed on the contact end of the connecting plate (27) and the slip ring (5) to be tested.

3. The device for testing the signal performance of a slip ring network according to claim 1, characterized in that: A rubber pad 2 (31) is fixed on the inner walls of the fixing plate 1 (12) and the fixing plate 2 (13), and a rubber block (32) is fixed on the bottom of the clamping block 2 (24).

4. The device for testing the signal performance of a slip ring network according to claim 1, characterized in that: The turntable (7) is provided with a power supply (33), and the power supply (33) is electrically connected to the drive motor (8). The turntable (7) is also provided with a speed regulating switch (34), and the speed regulating switch (34) is also electrically connected to the drive motor (8).

5. A method for testing the signal performance of a slip ring network, implemented based on the device of claim 4, characterized in that: Follow these steps to test: The first step is to place the slip ring (5) to be tested through a turntable (7) tooling to achieve rapid installation and fixation; The second step is to connect the rotor wire of the slip ring to be tested (5) to the rotor end wire of the tooling slip ring (6); The third step is to connect the stator end wire of the slip ring (5) to be tested to a port of the bit error tester (3); The fourth step is to connect the stator end wire of the tooling slip ring (6) to the other port of the bit error tester (3); In the fifth step, the driving motor (8) is started by the power supply (33) on the turntable (7), and the speed regulating switch (34) on the turntable (7) is used to adjust the driving motor (8) to a suitable speed. The output shaft of the driving motor (8) drives the rotating shaft (9) to rotate, and the rotating shaft (9) drives the tooling slip ring (6) and the rotor end of the slip ring to be tested (5) to rotate. The tooling slip ring (6) and the rotor end of the slip ring to be tested (5) rotate to simulate the working state of the slip ring; The sixth step is to start the computer device (4), use the script pre-installed in the computer device (4), set the script, click to connect, and after the communication is normal, click to start the test; the seventh step is to pop up the experimental results on the interface of the computer device (4) after the automatic test is completed, and click to generate the experimental report.

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