A portable detection device for locomotive drive modules

Abstract

The present application relates to the technical fields of locomotive overhaul and detection, and discloses a portable detection device for a locomotive driving module, which comprises a box body, a detector installed in the box body, a lithium battery installed in the detector, a wire reel installed in the box body, a hollow shaft rotatably assembled in the wire reel, a data line wound on the hollow shaft, and a power generation assembly comprising a protective box, a micro power generator installed on the inner wall of the box body through a machine base, and an output shaft of the micro power generator fixedly connected with a third rotating shaft through a bearing. When the data line is pulled out, the micro power generator is driven to operate and generate electricity through the hollow shaft and the multi-stage gear transmission, mechanical energy is converted into electrical energy to charge the lithium battery of the detector, power supply under no external power supply is realized, the structure utilizes mechanical energy during the pulling of the line to generate green electricity, reduces the risk of power consumption of the equipment, and is beneficial to improve the endurance and emergency applicability of the detection device.

Description

Technical Field

[0001] This invention relates to the field of railway locomotive maintenance and testing technology, and in particular to a portable testing device for locomotive drive modules. Background Technology

[0002] Currently, the testing of locomotive drive modules in port railways requires simple, efficient, and field-adaptable testing equipment, thus necessitating the use of portable locomotive drive module testing devices.

[0003] The portable locomotive drive module tester is a miniaturized intelligent testing device specifically designed for port railway locomotives. Primarily targeting the locomotive drive module, it quickly determines whether the drive module has faults, parameter drift, or performance degradation by sending analog control signals and measuring key electrical parameters such as voltage, current, frequency, pulse width modulation waveforms, and bus data, with only simple external connections. This enables online rapid troubleshooting, in-depot preventive testing, and post-maintenance performance verification without the need to send the locomotive back to the manufacturer, significantly reducing locomotive downtime.

[0004] Existing testing devices cannot conveniently store data cables when testing the locomotive's drive module, nor can they generate electricity in a green manner to address the risk of the device running out of power, resulting in poor endurance and emergency applicability of the testing devices. Summary of the Invention

[0005] To overcome the above shortcomings, the present invention provides a portable testing device for locomotive drive modules, which aims to improve the poor battery life and emergency applicability of existing testing devices.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a portable testing device for a locomotive drive module, comprising a housing, a testing instrument installed inside the housing, a lithium battery installed inside the testing instrument, a wire reel installed inside the housing, a hollow shaft rotatably mounted inside the wire reel, a data cable wound on the hollow shaft, a power generation component connected to the hollow shaft, the power generation component comprising a protective box, a first rotating shaft mounted on the side wall of the hollow shaft, a first gear fixedly sleeved on the first rotating shaft, a guide plate mounted on the inner wall of the protective box, a guide groove formed in the guide plate, a guide block slidably mounted in the guide groove, a second rotating shaft rotatably mounted on the guide block, a second gear fixedly sleeved on the second rotating shaft, a third rotating shaft rotatably mounted on the inner wall of the protective box, a third gear fixedly sleeved on the third rotating shaft, and a micro generator mounted on the inner wall of the housing via a base, the output shaft of the micro generator being fixedly connected to the third rotating shaft via a bearing.

[0007] According to the above technical solution, when the data cable is pulled out, the hollow shaft and multi-stage gear transmission drive the micro generator to generate electricity, converting mechanical energy into electrical energy to charge the lithium battery of the detector, thus achieving power replenishment without an external power source. When the data cable is released, the guide block in the gear set slides along the guide groove and disengages, causing the micro generator to stop working and eliminating electromagnetic damping. With the assistance of the spring, the cable can be easily and automatically retracted without resistance. This structure uses the mechanical energy of pulling the cable to generate green electricity, which avoids the resistance interference when retracting the cable and effectively reduces the risk of the device running out of power, thus improving the endurance and emergency applicability of the detection device.

[0008] Preferably, a cable outlet groove is formed on the side wall of the coil, and a conductive stator and a limiting stator are symmetrically installed on the inner wall of the coil. A plug is connected to the conductive stator, and a plug is connected to the other end of the plug. A hollow shaft is rotatably assembled inside the conductive stator and the limiting stator. An insulating plate is installed on the inner wall of the conductive stator, and a spring is installed between the insulating plate and the inner wall of the hollow shaft. One end of the hollow shaft is a conductive end, and one end of the data cable is fixed to the conductive end.

[0009] According to the above technical solution, when the data cable is pulled out, the hollow shaft rotates on the conductive stator and the limiting stator, while the spring deforms and stores energy. By connecting the connector and plug to the locomotive drive module and the detector respectively, the current flows sequentially through the plug, the wire, the conductive stator and the conductive end of the hollow shaft, and finally smoothly to the drive module. After the data cable is released, the deformed spring returns to its original shape, pulling the hollow shaft to rotate in the opposite direction, thereby driving the data cable to automatically rewind. This structure uses the energy stored in the spring to realize the automatic storage of the data cable, which helps to improve the neatness and convenience of equipment use.

[0010] Preferably, the detector is equipped with a voltage regulator chip, which is connected to a micro generator via internal wires and to a lithium battery via internal wires.

[0011] According to the above technical solution, after generating electricity through a micro generator, the electricity is conducted to a voltage regulator chip. The voltage regulator chip converts the fluctuating voltage into a stable charging voltage, which then charges the lithium battery. The voltage regulator chip can also act as an isolation buffer, which helps to avoid damage to the lithium battery or the internal circuitry of the detector.

[0012] Preferably, the coil is provided in two sets, and the output data line and the input data line are wound in the two sets of coils respectively. The output data line and the input data line are provided with voltage connectors, current connectors and air ratio connectors.

[0013] According to the above technical solution, by plugging the three connectors on the output data line and the input data line into the six interfaces of the locomotive drive module, and plugging the two connectors on the two lines into the two interfaces of the detector, the detector outputs a standard analog signal to the locomotive drive module through the output data line. Then, the locomotive drive module sends the actual measured corresponding signal to the detector through the input data line. The detector compares the actual measured corresponding value with the pre-stored standard value to determine whether the voltage deviation, current deviation, and duty cycle deviation are within the allowable range. This helps to establish a unified detection standard and ensure the accuracy and repeatability of each test result.

[0014] Preferably, the detector is equipped with a PLC control panel, and the detector is also equipped with red and green indicator lights.

[0015] According to the above technical solution, the PLC control panel can display a curve comparison chart between the measured corresponding value and the pre-stored standard value. When the deviation is within the allowable range, the green indicator light is on. If the deviation exceeds the limit, the red indicator light is on. The curve comparison chart can intuitively identify abnormal values, which helps to improve the objectivity and accuracy of the test results.

[0016] Preferably, the box body is equipped with a cover and a handle.

[0017] According to the above technical solution, by installing the detection structure inside the box and closing the cover, the detection structure can be conveniently stored. The installation of a handle facilitates the easy carrying of the box.

[0018] Preferably, the protective box is fixedly installed on the outer wall of the reel.

[0019] According to the above technical solution, the gear set is protected by a protective box, which effectively prevents dust from entering the gear meshing surface and helps to avoid transmission failure caused by tooth surface wear or jamming.

[0020] Preferably, a method of using a portable testing device for locomotive drive modules includes the following steps: S1. When the data cable is pulled out, the gear set drives the micro generator to generate electricity, which charges the lithium battery of the detector, thus providing power when there is no external power source. S2. When the data cable is released, the second gear disengages and automatically rewinds without resistance with the assistance of the spring, making it easy to store. S3. The detector connects to the locomotive drive module via a data cable. It compares the output standard analog signal with the received measured signal to accurately detect deviations in voltage, current, and duty cycle. The S4 and PLC control panel visually display the test results through curve comparison graphs. A green light indicates normal operation, while a red light indicates out-of-tolerance.

[0021] According to the above technical solution, when the data cable is pulled out, the hollow shaft rotates in the forward direction, driving a micro generator to generate electricity via the first shaft, first gear, second gear, third gear, and third shaft. The electrical energy is used to charge the lithium battery of the detector through a voltage regulator chip, enabling continuous power supply when there is no external power source. When unwinding and rewinding, the hollow shaft rotates in the reverse direction, and the guide block of the second gear slides upward along the guide groove of the guide plate and disengages. The micro generator does not generate electricity and there is no electromagnetic damping, making it easy to rewind the cable. At the same time, a spring assists in automatic rewinding, improving neatness and convenience. The current path is from the plug to the wire to the conductive stator to the conductive end of the hollow shaft to the data cable to the locomotive drive module. During testing, the output data cable and input data cable are connected to the six interfaces of the drive module, and the two plugs are connected to the detector. The detector outputs a standard analog signal and receives the measured signal, comparing the voltage, current, and duty cycle deviations. The PLC control panel displays a curve comparison graph. When the deviation is within tolerance, the green indicator light illuminates; when the deviation exceeds the tolerance, the red indicator light illuminates. The entire detection structure is placed inside a box, and the cover is closed for easy portability and storage via the handle.

[0022] The present invention has the following beneficial effects: 1. In this invention, when the data cable is pulled out, the hollow shaft and multi-stage gear transmission drive the micro generator to generate electricity, converting mechanical energy into electrical energy to charge the lithium battery of the detector, thus achieving power replenishment without external power supply. This structure utilizes the mechanical energy of pulling the cable to generate green electricity, which not only avoids the resistance interference when retracting the cable, but also effectively reduces the risk of the device running out of power, which is conducive to improving the endurance and emergency applicability of the detection device.

[0023] 2. In this invention, after the data cable is released, the deformed spring returns to its original shape, pulling the hollow shaft to rotate in the opposite direction, thereby causing the data cable to automatically rewind. This structure utilizes the energy stored in the spring to achieve automatic data cable storage, which helps to improve the neatness and convenience of using the equipment.

[0024] 2. In this invention, by installing the detection structure inside the box and then covering it with a lid, the detection structure can be conveniently stored. The addition of a handle facilitates easy carrying of the box. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a portable testing device for a locomotive drive module proposed in this invention; Figure 2 This is a three-dimensional schematic diagram of the interior of the housing of a portable detection device for a locomotive drive module proposed in this invention; Figure 3 This is a front view of the winding assembly of a portable detection device for a locomotive drive module proposed in this invention; Figure 4This is a three-dimensional schematic diagram of the interior of the coil of a portable testing device for a locomotive drive module proposed in this invention; Figure 5 This is a three-dimensional schematic diagram of the gear assembly of a portable testing device for a locomotive drive module proposed in this invention; Figure 6 This is a three-dimensional schematic diagram of the power generation component of a portable detection device for a locomotive drive module proposed in this invention.

[0026] Legend: 1. Housing; 2. Detector; 3. Wire reel; 4. Cable outlet; 5. Conductive stator; 6. Limiting stator; 7. Wire connector; 8. Plug; 9. Hollow shaft; 10. Insulating plate; 11. Spring; 12. Conductive end; 13. Protective box; 14. First shaft; 15. First gear; 16. Guide plate; 17. Guide groove; 18. Guide block; 19. Second shaft; 20. Second gear; 21. Third shaft; 22. Third gear; 23. Micro generator; 24. Output data cable; 25. Voltage connector; 26. Current connector; 27. Air ratio connector; 28. Cover; 29. ​​Handle; 30. Input data cable; 31. PLC control panel; 32. Red indicator light; 33. Green indicator light. Detailed Implementation

[0027] The technical solutions in 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.

[0028] Reference Figures 1-6 One embodiment of the present invention provides a portable testing device for a locomotive drive module, comprising a housing 1, a testing instrument 2 installed inside the housing 1, a lithium battery installed inside the testing instrument 2, a wire reel 3 installed inside the housing 1, a hollow shaft 9 rotatably mounted inside the wire reel 3, a data cable wound on the hollow shaft 9, a power generation component connected to the hollow shaft 9, the power generation component including a protective box 13, a first rotating shaft 14 installed on the side wall of the hollow shaft 9, a first gear 15 fixedly sleeved on the first rotating shaft 14, and the inner wall of the protective box 13... A guide plate 16 is installed, and a guide groove 17 is opened in the guide plate 16. A guide block 18 is slidably assembled in the guide groove 17. A second rotating shaft 19 is rotatably installed on the guide block 18. A second gear 20 is fixedly sleeved on the second rotating shaft 19. A third rotating shaft 21 is rotatably installed on the inner wall of the protective box 13. A third gear 22 is fixedly sleeved on the third rotating shaft 21. A micro generator 23 is installed on the inner wall of the housing 1 through a base. The output shaft of the micro generator 23 is fixedly connected to the third rotating shaft 21 through a bearing.

[0029] Specifically, when the data cable is pulled out from the reel 3, it causes the hollow shaft 9 to rotate in the forward direction. The hollow shaft 9 drives the first rotating shaft 14 to rotate, which in turn drives the first gear 15 to rotate. The first gear 15 then drives the second gear 20 to rotate, which in turn drives the third gear 22 to rotate. The third gear 22 then drives the third rotating shaft 21 to rotate, which in turn drives the output shaft of the micro-generator 23 to rotate, thus enabling the micro-generator 23 to generate electricity. The micro-generator 23 then supplies electrical energy to the lithium battery of the detector 2, allowing the lithium battery to be charged even without an external power source. When the data cable is released, the hollow shaft 9 rotates in the reverse direction to rewind the data cable, driving the first gear 15 to rotate in the reverse direction. An upward force is applied to the second gear 20, thereby driving the guide block 18 on the second gear 20 to slide upward in the guide groove 17 of the guide plate 16. The first gear 15 continues to rotate in the opposite direction, causing the guide block 18 on the second gear 20 to be suspended in the guide groove 17. The second gear 20 no longer meshes with the third gear 22. Therefore, when the data cable is wound up, the micro generator 23 will not be driven to generate electricity. When winding up, the micro generator 23 does not generate electromagnetic damping. The hollow shaft 9 can more easily retract the data cable automatically. Each time the data cable is pulled out, it can generate electricity and store energy, and the lithium battery can be continuously replenished, reducing the risk of running out of power midway. It utilizes the mechanical energy that was originally wasted to convert into electrical energy, which is green and low-carbon, and effectively improves the applicability and emergency response capability of the detection device.

[0030] Reference Figure 3 A cable outlet groove 4 is provided on the side wall of the coil 3. A conductive stator 5 and a limiting stator 6 are symmetrically installed on the inner wall of the coil 3. A plug wire 7 is connected to the conductive stator 5, and a plug 8 is connected to the other end of the plug wire 7. A hollow shaft 9 is rotatably assembled inside the conductive stator 5 and the limiting stator 6. An insulating plate 10 is installed on the inner wall of the conductive stator 5. A spring 11 is installed between the insulating plate 10 and the inner wall of the hollow shaft 9. One end of the hollow shaft 9 is a conductive end 12, and one end of the data cable is fixed to the conductive end 12.

[0031] Specifically, when the data cable is pulled out from the reel 3, it causes the hollow shaft 9 to rotate. The hollow shaft 9 rotates on the conductive stator 5 and the limiting stator 6, and at the same time, the hollow shaft 9 drives the spring 11 to rotate. The spring 11 deforms and inserts the three connectors on the data cable into the interface of the locomotive drive module. The plug 8 on the connector 7 is inserted into the interface of the detector 2. One end of the data cable is fixed to the conductive end 12. The current from the detector 2 flows from the plug 8 through the connector 7, then through the conductive stator 5, then through the conductive end 12 of the hollow shaft 9, and then from the data cable into the locomotive drive module, realizing smooth current flow. After the data cable is released, the spring 11 returns to its original shape, thus pulling the hollow shaft 9 to rotate in the opposite direction to wind up the data cable. This structure, with the assistance of the spring 11, automatically winds up the cable, effectively improving the neatness and storage convenience of the data cable.

[0032] Reference Figure 2 The detector 2 has a voltage regulator chip installed inside. The voltage regulator chip is connected to the micro generator 23 through internal wires and is also connected to the lithium battery through internal wires.

[0033] Specifically, the detector 2 is model XD-2A. A voltage regulator chip is installed inside the detector 2. After the micro generator 23 generates electricity, it conducts electricity to the voltage regulator chip. The voltage regulator chip converts the fluctuating voltage into a stable charging voltage, which then charges the lithium battery. The voltage regulator chip can also act as an isolation buffer to prevent damage to the lithium battery or the internal circuitry of the detector.

[0034] Reference Figure 4 The coil 3 is provided with two sets, and the output data line 24 and the input data line 30 are wound in the two sets of coil 3 respectively. The output data line 24 and the input data line 30 are provided with voltage connectors 25, current connectors 26 and air ratio connectors 27.

[0035] Specifically, the three connectors on the output data line 24 and the input data line 30 are respectively plugged into the six interfaces of the locomotive drive module, and the plugs 8 on the two plugs 7 are plugged into the two interfaces of the detector 2. The detector 2 outputs a standard analog signal to the locomotive drive module through the output data line 24. Then, the locomotive drive module sends the actual measured corresponding signal to the detector 2 through the input data line 30. The detector 2 compares the actual measured corresponding value with the pre-stored standard value to determine whether the voltage deviation, current deviation, and duty cycle deviation are within the allowable range.

[0036] Reference Figure 2 The detector 2 is equipped with a PLC control panel 31, a red indicator light 32, and a green indicator light 33.

[0037] Specifically, the PLC control panel 31 can display a curve comparison chart between the measured corresponding value and the pre-stored standard value. When the deviation is within the allowable range, the green indicator light 33 lights up. If the deviation exceeds the allowable range, the red indicator light 32 lights up. Abnormal values ​​can be intuitively identified through the curve comparison chart.

[0038] Reference Figure 1 A cover 28 is installed on the box body 1, and a handle 29 is installed on the box body 1.

[0039] Specifically, the detection structure is installed inside the housing 1, and the cover 28 is closed to facilitate the storage of the detection structure. The handle 29 is installed to make the housing 1 easy to carry.

[0040] Reference Figure 2 The protective box 13 is fixedly installed on the outer wall of the line panel 3.

[0041] Specifically, the protective box 13 protects the gear set, effectively preventing dust from entering the gear meshing surface and avoiding transmission failure caused by tooth surface wear or jamming.

[0042] Reference Figures 1-6 A method for using a portable testing device for locomotive drive modules includes the following steps: S1. When the data cable is pulled out, the gear set drives the micro generator 23 to generate electricity, which charges the lithium battery of the detector 2, thus providing power when there is no external power source. S2. When the data cable is released, the second gear 20 disengages and automatically winds up without resistance with the assistance of the spring 11, achieving convenient storage. S3 and detector 2 are connected to the locomotive drive module via a data cable. By comparing the output standard analog signal with the received actual measurement signal, the deviation of voltage, current and duty cycle is accurately detected. The S4 and PLC control panel 31 visually display the test results through a curve comparison graph. A green light indicates normal operation, while a red light indicates out-of-tolerance.

[0043] Specifically, when the data cable is pulled out, the hollow shaft 9 rotates in the forward direction, driving the micro generator 23 to generate electricity via the first shaft 14, the first gear 15, the second gear 20, the third gear 22, and the third shaft 21. The electrical energy is used to charge the lithium battery of the detector 2 through the voltage regulator chip, enabling continuous power supply when there is no external power source. When unwinding and rewinding, the hollow shaft 9 rotates in the reverse direction, and the guide block 18 of the second gear 20 slides upward along the guide groove 17 of the guide plate 16 and disengages. The micro generator 23 does not generate electricity, and there is no electromagnetic damping, making it easy to rewind the cable. At the same time, the spring 11 assists in automatic rewinding, improving neatness and convenience. The current path is from plug 8 to wire 7 to conductive stator 5 to conductive end 12 of hollow shaft 9 to data line to locomotive drive module. During testing, output data line 24 and input data line 30 are connected to the six interfaces of drive module respectively, and two plugs 8 are connected to detector 2. Detector 2 outputs standard analog signal and receives actual measured signal. It compares voltage, current and duty cycle deviations. PLC control panel 31 displays curve comparison graph. When the deviation is allowed, green indicator light 33 lights up. When the deviation exceeds the tolerance, red indicator light 32 lights up. The entire detection structure is placed in the box 1. The cover 28 is closed and it can be easily stored by handle 29.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A portable testing device for a locomotive drive module, comprising a housing (1), characterized in that: The housing (1) is equipped with a detector (2), which contains a lithium battery. The housing (1) is also equipped with a coil (3), which contains a hollow shaft (9) that rotates within it. A data cable is wound around the hollow shaft (9), and a power generation component is connected to the hollow shaft (9). The power generation component includes a protective box (13). A first rotating shaft (14) is mounted on the side wall of the hollow shaft (9), and a first gear (15) is fixedly mounted on the first rotating shaft (14). A guide plate (16) is mounted on the inner wall of the protective box (13). 16) A guide groove (17) is provided inside, and a guide block (18) is slidably assembled in the guide groove (17). A second rotating shaft (19) is rotatably mounted on the guide block (18). A second gear (20) is fixedly sleeved on the second rotating shaft (19). A third rotating shaft (21) is rotatably mounted on the inner wall of the protective box (13). A third gear (22) is fixedly sleeved on the third rotating shaft (21). A micro generator (23) is mounted on the inner wall of the box (1) through a base. The output shaft of the micro generator (23) is fixedly connected to the third rotating shaft (21) through a bearing.

2. The portable testing device for a locomotive drive module according to claim 1, characterized in that: The coil (3) has a wire outlet groove (4) on its side wall. A conductive stator (5) and a limiting stator (6) are symmetrically installed on the inner wall of the coil (3). A plug wire (7) is connected to the conductive stator (5). A plug (8) is connected to the other end of the plug wire (7). A hollow shaft (9) is rotatably assembled inside the conductive stator (5) and the limiting stator (6). An insulating plate (10) is installed on the inner wall of the conductive stator (5). A spring spring (11) is installed between the insulating plate (10) and the inner wall of the hollow shaft (9). One end of the hollow shaft (9) is a conductive end (12). One end of the data cable is fixed on the conductive end (12).

3. The portable testing device for a locomotive drive module according to claim 1, characterized in that: The detector (2) has a voltage regulator chip installed inside. The voltage regulator chip is connected to the micro generator (23) through internal wires. The voltage regulator chip is also connected to the lithium battery through internal wires.

4. The portable testing device for a locomotive drive module according to claim 1, characterized in that: The coil (3) is provided with two sets, and the output data line (24) and input data line (30) are wound in the two sets of coils (3) respectively. The output data line (24) and input data line (30) are provided with voltage connector (25), current connector (26) and air ratio connector (27).

5. A portable testing device for a locomotive drive module according to claim 1, characterized in that: The detector (2) is equipped with a PLC control panel (31) and a red indicator light (32) and a green indicator light (33).

6. The portable testing device for a locomotive drive module according to claim 1, characterized in that: The box (1) is equipped with a cover (28) and a handle (29).

7. A portable testing device for a locomotive drive module according to claim 1, characterized in that: The protective box (13) is fixedly installed on the outer wall of the online plate (3).

8. A method of using a portable testing device for a locomotive drive module, as described in any one of claims 1-7, characterized in that... Includes the following steps: S1. When the data cable is pulled out, the micro generator (23) is driven by the gear set to generate electricity to charge the lithium battery of the detector (2) and realize the power supply when there is no external power supply. S2. When the data cable is released, the second gear (20) disengages and automatically winds up without resistance with the assistance of the spring (11), thus achieving convenient storage. S3, the detector (2) is connected to the locomotive drive module through a data cable. It compares the output standard analog signal with the received actual measurement signal to accurately detect the deviation of voltage, current and duty cycle. S4, PLC control panel (31) intuitively displays the test results through curve comparison graph. A green light indicates normal operation, and a red light indicates out-of-tolerance.

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