Wireless power transmission rolling contact fatigue test bench monitoring system and method

Abstract

The invention relates to the technical field of mechanical part fatigue testing, and discloses a rolling contact fatigue test bed monitoring system and method for wireless power transmission, and a test bed is provided with a wireless power transmission transmitting end circuit board; the wireless electric energy transmission transmitting end coil is arranged on the wireless electric energy transmission transmitting end coil support, and the end face of the wireless electric energy transmission transmitting end coil support is provided with an end cover. The receiving disc is arranged on the end cover, a test roller is arranged on the receiving disc, and a temperature sensor is arranged on the test roller; the testing device is arranged on the side surface of the receiving disc; the testing device comprises a circuit board, a wireless electric energy transmission receiving end coil and a vibration sensor arranged on the circuit board, the wireless electric energy transmission receiving end coil, the vibration sensor and the temperature sensor are all electrically connected with the circuit board, and the wireless electric energy transmission receiving end coil is electrically connected with the wireless electric energy transmission transmitting end coil; the device can continuously work and record the temperature and vibration of the tested roller, and has a good application prospect and a wide application range.

Description

Technical Field

[0001] This invention relates to the field of fatigue testing technology for mechanical parts, and in particular to a monitoring system and method for a rolling contact fatigue test bench with wireless power transmission. Background Technology

[0002] Rolling contact fatigue is a common failure mode of rolling transmission parts such as gears and bearings. Existing technology uses rolling contact fatigue testing to test the rolling contact fatigue resistance of parts. The test simulates the meshing contact conditions of gears during actual operation to evaluate the ability of parts to resist fatigue damage under cyclic contact loads.

[0003] However, existing rolling contact fatigue testing equipment cannot operate continuously for long periods of time and cannot record parameters such as roller temperature and vibration, thus limiting its application.

[0004] Therefore, how to provide a rolling contact fatigue testing device that can operate continuously and record roller data is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a monitoring system and method for a rolling contact fatigue test bench with wireless power transmission, so as to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides a wireless power transmission rolling contact fatigue testing bench monitoring system, comprising:

[0007] The test bench is equipped with a wireless power transmission transmitter circuit board;

[0008] A wireless power transmission transmitter coil is mounted on a wireless power transmission transmitter coil bracket and electrically connected to the wireless power transmission transmitter circuit board. The end face of the wireless power transmission transmitter coil bracket is mounted on an end cover, and the end cover is fixed on a test bench.

[0009] A receiving plate is provided on the end cap, and a test roller is provided on the receiving plate, and a temperature sensor is provided on the test roller;

[0010] The testing device is located on the side of the receiving plate; the testing device includes a circuit board, a wireless power transmission receiving coil and a vibration sensor disposed on the circuit board, the wireless power transmission receiving coil, the vibration sensor and the temperature sensor are all electrically connected to the circuit board, and the wireless power transmission receiving coil is magnetically coupled to the wireless power transmission transmitting coil.

[0011] A WiFi repeater is connected to a circuit board via WiFi. The circuit board sends temperature data acquired by a temperature sensor and vibration data acquired by a vibration sensor to the WiFi repeater. The WiFi repeater is used to upload the temperature data and vibration data to a host computer.

[0012] Furthermore, the receiving plate is cylindrical, and the testing device is a ring structure coaxial with the receiving plate.

[0013] Furthermore, the testing apparatus includes:

[0014] A base plate is coaxially disposed on the side of the receiving plate, a circuit board is disposed on the outer side of the base plate, and a wireless power transmission receiving coil is disposed on the inner side of the base plate.

[0015] A cover plate is fitted onto the outer side of the base plate;

[0016] The connector has multiple mounting holes on the top of the base plate and multiple mounting slots on the cover plate corresponding to the mounting holes. The connector passes through the mounting holes from top to bottom and is inserted into the mounting slots. The connector is electrically connected to the circuit board and the temperature sensor respectively.

[0017] Furthermore, the temperature sensor is a PT100 platinum resistance thermometer, the temperature sensor is electrically connected to the temperature sensing lead, and the temperature sensor lead is electrically connected to the insertion machine.

[0018] Furthermore, the inner side of the base plate is provided with an annular groove, and the base plate is provided with a slot-shaped hole through the inner and outer surfaces. The wireless power transmission receiver coil is disposed in the annular groove, the wireless power transmission receiver coil is connected to the wireless power transmission lead, and the wireless power transmission lead passes through the slot-shaped hole and is electrically connected to the circuit board.

[0019] Furthermore, the cover plate and the base plate are connected by screws and nuts.

[0020] Furthermore, the wireless power transmission transmitter coil bracket is bonded to the wireless power transmission transmitter coil, and the end face of the wireless power transmission transmitter coil bracket is provided with an arc-shaped positioning post corresponding to the end cover, and the arc-shaped positioning post is connected to the end cover.

[0021] Furthermore, the vibration sensor is an ADXL357 accelerometer.

[0022] The present invention also provides a method for monitoring rolling contact fatigue test benches with wireless power transmission, the method comprising the following steps:

[0023] Install the test roller on the end face of the receiving plate, and connect the WIFI repeater to the host computer; start the test, bring the WIFI repeater close to the test bench, and the wireless power transmission transmitter coil sends the temperature data obtained by the temperature sensor and the vibration data obtained by the vibration sensor to the WIFI repeater, which then uploads the temperature data and vibration data to the host computer.

[0024] The present invention discloses the following technical effects:

[0025] This invention utilizes a temperature sensor, a vibration sensor, and a circuit board to acquire temperature and vibration signals from the testing device. After processing by the circuit board, the signals are transmitted to a Wi-Fi repeater for amplification, stabilization, and aggregation. Finally, the signals are sent to a host computer for real-time dynamic display and data storage. Compared to existing technologies, this invention enables continuous operation and recording of the temperature and vibration of the test rollers, demonstrating promising application prospects and a wide range of applicability. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the internal structure (excluding the end caps):

[0029] Figure 3 This is an exploded view of the test device structure;

[0030] Figure 4 This is a front view of the base plate;

[0031] Figure 5 This is a front view of the cover plate;

[0032] Figure 6 Front view of the wireless power transmission transmitter coil support;

[0033] Figure 7 This is a schematic diagram of the vibration sensor installation.

[0034] The components include: 1. Test bench; 2. Test device; 3. Temperature sensor; 4. Wireless power transmission transmitter circuit board; 5. Wireless power transmission transmitter coil; 6. Wireless power transmission transmitter coil bracket; 7. WIFI repeater; 8. Host computer; 9. End cover; 10. Receiving plate; 11. Test roller; 12. Base plate; 13. Circuit board; 14. Cover plate; 15. Connector; 16. Screw; 17. Nut; 18. Wireless power transmission receiver coil; 19. Vibration sensor. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] like Figures 1-7 As shown, an embodiment of the present invention provides a monitoring system for a rolling contact fatigue test bench with wireless power transmission, comprising:

[0038] Test bench 1 is equipped with wireless power transmission transmitter circuit board 4;

[0039] The wireless power transmission transmitter coil 5 is fixedly mounted on the wireless power transmission transmitter coil bracket 6 by adhesive and electrically connected to the wireless power transmission transmitter circuit board 4. The end face of the wireless power transmission transmitter coil bracket 6 is mounted on the end cover 9, and the end cover 9 is fixed on the test bench 1.

[0040] A receiving plate 10 is set on the end cover 9. A test roller 11 is set on the receiving plate 10, and a temperature sensor 3 is set on the test roller 11.

[0041] Test device 2 is located on the side of receiving plate 10. Test device 2 includes circuit board 13, wireless power transmission receiving coil 18 and vibration sensor 19 disposed on circuit board 13. Wireless power transmission receiving coil 18, vibration sensor 19 and temperature sensor 3 are all electrically connected to circuit board 13. Wireless power transmission receiving coil 18 is magnetically coupled to wireless power transmission transmitting coil 5.

[0042] WiFi repeater 7 is connected to circuit board 13 via WiFi. Circuit board 13 sends temperature data acquired by temperature sensor 3 and vibration data acquired by vibration sensor 19 to WiFi repeater 7. WiFi repeater 7 is used to upload temperature data and vibration data to host computer 8.

[0043] In this embodiment, the end face of the wireless power transmission transmitter coil support 6 is provided with a groove structure for arranging leads of the wireless power transmission transmitter coil 5.

[0044] In this embodiment, the receiving plate 10 is cylindrical, and the testing device 2 is a ring structure coaxial with the receiving plate 10. It is fixed to the outside of the receiving plate 10 by adhesive. The middle part of the testing device 2 forms a through hole structure that matches the shape of the receiving plate 10.

[0045] In this embodiment, the testing device 2 includes:

[0046] The base plate 12 is coaxially disposed on the side of the receiving plate 10, the circuit board 13 is disposed on the outer side of the base plate 12, and the wireless power transmission receiving coil 18 is disposed on the inner side of the base plate 12.

[0047] Cover plate 14 is embedded in the outer side of base plate 12;

[0048] The connector 15 has multiple mounting holes on the top of the base plate 12, and multiple mounting slots on the cover plate 14 corresponding to the mounting holes. The connector 15 passes through the mounting holes from top to bottom and is inserted into the mounting slots. The connector 15 is electrically connected to the circuit board 13 and the temperature sensor 3 respectively.

[0049] In this embodiment, the temperature sensor 3 is a PT100 platinum resistance thermometer. The temperature sensor 3 is electrically connected to the temperature sensing lead wire, and the lead wire of the temperature sensor 3 is electrically connected to the insertion machine.

[0050] In this embodiment, an annular groove is provided on the inner side of the base plate 12, and a slotted hole is provided through the inner and outer surfaces of the base plate 12. The wireless power transmission receiver coil 18 is disposed in the annular groove, and the wireless power transmission receiver coil 18 is connected to the wireless power transmission lead. The wireless power transmission lead passes through the slotted hole and is electrically connected to the circuit board 13.

[0051] In this embodiment, the cover plate 14 and the base plate 12 are connected by screws 16 and nuts 17. The base plate 12, circuit board 13, and cover plate 14 each have six screw holes for mounting screws 16 and nuts 17. The nuts 17 and screws 16 can assemble the cover plate 14, base plate 12, and circuit board 13 into a single structure. The six screw holes on the base plate 12 are countersunk holes, allowing the screw heads 16 and nuts 17 to fully enter the countersunk holes after installation.

[0052] In this embodiment, the wireless power transmission transmitter coil bracket 6 is bonded to the wireless power transmission transmitter coil 5, and the end face of the wireless power transmission transmitter coil bracket 6 is provided with an arc-shaped positioning post corresponding to the end cover 9. The arc-shaped positioning post is connected to the end cover 9.

[0053] In this embodiment, the vibration sensor 19 is an ADXL357 accelerometer.

[0054] The assembly process of the monitoring system for the rolling contact fatigue testing bench 1 with wireless power transfer is as follows:

[0055] Apply glue to the end face of the wireless power transmission transmitter coil bracket 6, and attach the wireless power transmission transmitter coil 5 to the wireless power transmission transmitter coil bracket 6. Arrange the leads of the wireless power transmission transmitter coil 5 in the groove on the end face of the wireless power transmission transmitter coil bracket 6, and solder the leads of the wireless power transmission transmitter coil 5 to the pads of the wireless power transmission transmitter circuit board 4 using a soldering iron and solder.

[0056] Apply glue to the annular groove of the base plate 12, attach the wireless power transmission receiver coil 18 to the annular groove, pass the wireless power transmission lead through the slot hole of the base plate 12, install the circuit board 13 inside the base plate 12, and solder the wireless power transmission lead to the pads of the circuit board 13 with a soldering iron and solder.

[0057] Use wire strippers to expose a small portion of the metal at one end of the lead wire. Use wire clamps to snap the metal terminal onto the metal lead wire. Insert the terminal with the lead wire into connector 15. Install connector 15 with the lead wire in the corresponding position on cover plate 14. Select an appropriate lead wire length for the other end of connector 15 based on the distance between the sensor solder points. Solder the lead wire to the pads on circuit board 13 using a soldering iron and solder. Connect the temperature sensing lead wire to connector 15. Install cover plate 14 onto base plate 12 and secure cover plate 14 and base plate 12 together using screws 16 and nuts 17.

[0058] This invention also provides a monitoring method for a rolling contact fatigue testing bench 1 with wireless power transmission, and the monitoring system of the rolling contact fatigue testing bench 1 with wireless power transmission includes the following steps:

[0059] Install the test roller 11 on the end face of the receiving plate 10, and connect the WIFI repeater 7 to the host computer 8; start the test, bring the WIFI repeater 7 close to the test bench 1, and the wireless power transmission transmitter coil 5 sends the temperature data obtained by the temperature sensor 3 and the vibration data obtained by the vibration sensor 19 to the WIFI repeater 7. The WIFI repeater 7 then uploads the temperature data and vibration data to the host computer 8.

[0060] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0061] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A monitoring system for a rolling contact fatigue testing bench with wireless power transmission, characterized in that, include: The test bench (1) is equipped with a wireless power transmission transmitter circuit board (4). A wireless power transmission transmitter coil (5) is mounted on a wireless power transmission transmitter coil bracket (6) and electrically connected to the wireless power transmission transmitter circuit board (4). The end face of the wireless power transmission transmitter coil bracket (6) is mounted on an end cover (9), which is fixed on a test bench (1). A receiving plate (10) is provided on the end cap (9), and a test roller (11) is provided on the receiving plate (10), and a temperature sensor (3) is provided on the test roller (11). The test device (2) is located on the side of the receiving plate (10). The test device (2) includes a circuit board (13), a wireless power transmission receiving coil (18), and a vibration sensor (19) located on the circuit board (13). The wireless power transmission receiving coil (18), the vibration sensor (19), and the temperature sensor (3) are all electrically connected to the circuit board (13). The wireless power transmission receiving coil (18) is magnetically coupled to the wireless power transmission transmitting coil (5). WiFi repeater (7) is connected to circuit board (13) via WiFi. Circuit board (13) sends temperature data obtained by temperature sensor (3) and vibration data obtained by vibration sensor (19) to WiFi repeater (7). WiFi repeater (7) is used to upload temperature data and vibration data to host computer (8).

2. The monitoring system for a rolling contact fatigue test bench with wireless power transmission according to claim 1, characterized in that, The receiving plate (10) is cylindrical, and the testing device (2) is a ring structure coaxial with the receiving plate (10).

3. The monitoring system for a rolling contact fatigue test bench with wireless power transmission according to claim 2, characterized in that, The testing device (2) includes: The base plate (12) is coaxially disposed on the side of the receiving plate (10), the circuit board (13) is disposed on the outer side of the base plate (12), and the wireless power transmission receiving coil (18) is disposed on the inner side of the base plate (12). Cover plate (14) is embedded in the outer side of the base plate (12); The connector (15) has multiple mounting holes on the top of the base plate (12) and multiple mounting slots on the cover plate (14) corresponding to the mounting holes. The connector (15) passes through the mounting holes from top to bottom and is inserted into the mounting slots. The connector (15) is electrically connected to the circuit board (13) and the temperature sensor (3) respectively.

4. The monitoring system for a rolling contact fatigue test bench with wireless power transmission according to claim 3, characterized in that, The temperature sensor (3) is a PT100 platinum resistance thermometer. The temperature sensor (3) is electrically connected to the temperature sensing lead wire, and the temperature sensor (3) lead wire is electrically connected to the insertion machine.

5. The monitoring system for a rolling contact fatigue test bench with wireless power transmission according to claim 3, characterized in that, The inner side of the base plate (12) is provided with an annular groove, and the base plate (12) is provided with a slot-shaped hole through the inner and outer surfaces. The wireless power transmission receiver coil (18) is located in the annular groove. The wireless power transmission receiver coil (18) is connected to the wireless power transmission lead. The wireless power transmission lead passes through the slot-shaped hole and is electrically connected to the circuit board (13).

6. The monitoring system for a rolling contact fatigue test bench with wireless power transmission according to claim 3, characterized in that, The cover plate (14) and the base plate (12) are connected by screws (16) and nuts (17).

7. The monitoring system for a rolling contact fatigue test bench with wireless power transmission according to claim 1, characterized in that, The wireless power transmission transmitter coil bracket (6) is bonded to the wireless power transmission transmitter coil (5). The end face of the wireless power transmission transmitter coil bracket (6) is provided with an arc positioning post corresponding to the end cover (9). The arc positioning post is connected to the end cover (9).

8. The monitoring system for a rolling contact fatigue test bench with wireless power transmission according to claim 1, characterized in that, The vibration sensor (19) is an ADXL357 accelerometer.

9. A monitoring method for a rolling contact fatigue test bench with wireless power transmission (1), characterized in that, The rolling contact fatigue testing bench (1) monitoring system for wireless power transmission according to any one of claims 1-8 includes the following steps: Install the test roller (11) on the end face of the receiving plate (10), connect the WIFI repeater (7) to the host computer (8); start the test, bring the WIFI repeater (7) close to the test bench (1), the wireless power transmission transmitter coil (5) sends the temperature data obtained by the temperature sensor (3) and the vibration data obtained by the vibration sensor (19) to the WIFI repeater (7), and the WIFI repeater (7) uploads the temperature data and vibration data to the host computer (8).

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