Gear coupling for train and monitoring method

Abstract

The invention discloses a gear coupling for a train and a monitoring method. The gear coupling comprises a first coupling body, a second coupling body, a detection assembly and a receiving assembly. Wherein the inner side of the first coupler is connected with an output shaft of the motor; the inner side of the second coupling is connected with a high-speed shaft of the gearbox, and a shell of the second coupling is detachably connected with a shell of the first coupling; the detection assembly is detachably arranged on a shell of the first coupler and / or a shell of the second coupler and used for detecting parameters of the gear coupler. The receiving assembly is arranged on the train and used for receiving the parameters detected by the detection assembly. Through the scheme of the invention, the gear coupling in a limited space can be monitored.

Description

Technical Field

[0001] This application generally relates to the field of coupling technology. More specifically, this application relates to a gear coupling for trains and a monitoring method thereon. Background Technology

[0002] Gear couplings are mechanical components widely used in industrial transmission, primarily divided into two tooth profiles: spur gear and drum gear. Their design typically consists of two half-couplings, connected to the driving shaft and driven shaft respectively, to achieve power transmission and motion coordination. Due to their reliable performance and good adaptability, gear couplings are widely used in mining machinery, rail transportation, shipbuilding, metallurgy, hoisting and transportation, wind power, petrochemicals, and many other fields.

[0003] In the rail transit sector, gear couplings are currently the mainstream choice. These couplings mainly consist of three parts: the input half-coupling, the output half-coupling, and the connecting bolt assembly. Their core function is to effectively transmit loads, while also possessing displacement compensation capabilities to accommodate relative movement and positional deviations between shafts. Furthermore, the unique structural design of the gear coupling seals the lubrication medium, ensuring the normal operation of the lubrication system, thereby extending the coupling's service life and improving transmission efficiency.

[0004] However, in the rail transit sector, the installation space for couplings located between the bogie gearbox input shaft and the motor is limited. These couplings must operate with high load-bearing capacity and high speed within this confined space, and must withstand frequent vibrations, large displacement angles, and rapid temperature changes. These demanding working conditions render traditional detection methods (such as contact or non-contact probes like gratings, infrared, and lasers) ineffective for coupling inspection. Therefore, real-time monitoring of coupling operation is currently difficult, making it impossible to promptly detect potential anomalies. Due to the lack of effective real-time monitoring methods, abnormal coupling conditions are often difficult to detect in a timely manner. This can not only reduce the safety of the traction and transmission systems but also lead to malfunctions, ultimately affecting the normal operation of the entire rail transit system. Furthermore, the inability to conduct timely and targeted maintenance based on the coupling's operating condition severely impacts equipment reliability. Ultimately, this will lead to a significant increase in subsequent operation and maintenance costs, causing numerous inconveniences for the operation and management of the rail transit system.

[0005] In view of this, there is an urgent need to provide a gear coupling for trains and a monitoring method to enable monitoring of gear couplings located in a confined space. Summary of the Invention

[0006] In order to at least solve one or more of the technical problems mentioned above, this application proposes a solution for a gear coupling for trains and a monitoring method in two aspects.

[0007] In a first aspect, this application provides a gear coupling for a train, the gear coupling connecting the train's motor and gearbox, the gear coupling including a first coupling, a second coupling, a detection component, and a receiving component; wherein, the inner side of the first coupling is connected to the output shaft of the motor; the inner side of the second coupling is connected to the high-speed shaft of the gearbox, and the housing of the second coupling is detachably connected to the housing of the first coupling; the detection component is detachably disposed on the housing of the first coupling and / or the housing of the second coupling, for detecting parameters of the gear coupling; the receiving component is disposed on the train for receiving the parameters detected by the detection component.

[0008] In some embodiments, the interior of the first coupling is characterized by the meshing of drum-shaped teeth and straight teeth, and the interior of the second coupling is also characterized by the meshing of drum-shaped teeth and straight teeth.

[0009] In some embodiments, the housing of the first coupling is provided with a first protrusion, and the housing of the second coupling is provided with a second protrusion opposite to the first protrusion, and the first protrusion and the second protrusion are detachably connected.

[0010] In some embodiments, the first protrusion and the second protrusion are connected by a plurality of spaced bolt assemblies.

[0011] In some embodiments, one or more grooves are provided on the housing of the first coupling and / or the housing of the second coupling, and the detection component is detachably disposed in the groove. The detection component includes: one or more wireless sensors for detecting parameters of the gear coupling; and an antenna assembly for transmitting the parameters detected by the wireless sensors to a receiving assembly.

[0012] In some embodiments, the detection component is disposed in the groove by one or more of the following methods: welding, riveting, bonding, threaded connection, pin connection, elastic deformation connection, locking connection, or plugging.

[0013] In some embodiments, a sealing component is provided within the groove for sealing the detection component.

[0014] In some embodiments, the detection component is disposed on the housing of the first coupling and / or the housing of the second coupling along the axial and / or circumferential direction of the gear coupling.

[0015] In some embodiments, the parameters of the gear coupling include one or more of temperature, acceleration, angular velocity, pressure, tilt angle, and current.

[0016] In a second aspect, this application provides a monitoring method for gear couplings, the method being applied to gear couplings as described in any one of the first aspects, the monitoring method comprising: obtaining a first parameter of the gear coupling at preset time intervals; preprocessing the first parameter to obtain a second parameter; and determining, based on the second parameter, whether the gear coupling is abnormal.

[0017] In some embodiments, the preprocessing of the first parameter to obtain the second parameter includes: amplifying the first parameter; and filtering the amplified first parameter.

[0018] In some embodiments, the monitoring method further includes: triggering a maintenance command in response to an abnormality in the gear coupling.

[0019] With the gear coupling and monitoring method for trains provided above, this embodiment of the application, through the detachable mounting of the detection component on the housing of the first coupling and / or the housing of the second coupling, enables monitoring of the gear coupling within a limited space. Furthermore, by including a receiving component, when the detection component identifies an abnormal operating condition, a maintenance command can be triggered promptly, thereby preventing escalation of the fault and improving safety and reliability. Attached Figure Description

[0020] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, and the same or corresponding reference numerals denote the same or corresponding parts, wherein: Figure 1 Exemplary structural diagrams of gear couplings according to some embodiments of this application are shown; Figure 2 An exemplary cross-sectional view of a gear coupling according to other embodiments of this application is shown; Figure 3 An exemplary cross-sectional view of a gear coupling according to some other embodiments of this application is shown; Figure 4 An exemplary block diagram of a monitoring method 400 for gear couplings according to some embodiments of this application is shown.

[0021] Tag Name 10 - First coupling, 11 - Groove, 20 - Second coupling, 30 - Detection assembly, 40 - Bolt assembly, 50 - First flange structure, 60 - Second flange structure. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] It should be understood that the terms "comprising" and "including" as used in the specification and claims of this application indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0024] It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this specification and claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this specification and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0025] As used in this specification and claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0026] The specific embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0027] Exemplary application scenarios.

[0028] Figure 1 Exemplary structural diagrams of gear couplings according to some embodiments of this application are shown. Figure 2 An exemplary cross-sectional view of a gear coupling according to another embodiment of this application is shown. For example... Figure 1 and Figure 2As shown, the gear coupling includes a first coupling 10, a second coupling 20, a detection component 30, and a receiving component; wherein, the inner side of the first coupling is connected to the output shaft of the motor; the inner side of the second coupling is connected to the high-speed shaft of the gearbox, and the housing of the second coupling is detachably connected to the housing of the first coupling; the detection component is detachably disposed on the housing of the first coupling and / or the housing of the second coupling, and is used to detect the parameters of the gear coupling; the receiving component is disposed on the train and is used to receive the parameters detected by the detection component. In some embodiments, the aforementioned train may include a rail transit train.

[0029] In some embodiments, the housing of the first coupling has a first protrusion, and the housing of the second coupling has a second protrusion opposite to the first protrusion, the first protrusion and the second protrusion being detachably connected. In some embodiments, the first protrusion and the second protrusion are connected by a plurality of spaced bolt assemblies 40. In some embodiments, the detection assembly is disposed on the housing of the first coupling and / or the housing of the second coupling along the axial and / or circumferential direction of the gear coupling.

[0030] In some embodiments, a gear coupling is a widely used movable rigid coupling. It uses the meshing of internal and external teeth to transmit torque while allowing a certain degree of relative displacement (including radial, axial, and angular offset) between the two connected shafts, thereby compensating for deviations caused by installation errors, shaft deformation under load, or thermal expansion.

[0031] In some embodiments, the first coupling 10 may be an input-side half coupling, which may be connected to an input shaft.

[0032] In some embodiments, a sleeve component may be provided on the inner side of the first coupling 10, and the inner side of the sleeve component may be connected to the output shaft of the motor. Further, a first gear may be provided on the outer side of the sleeve component; it is understood that the first gear may be an external tooth of the sleeve component. Even further, a second gear that meshes with the aforementioned first gear may be provided on the inner side of the housing of the first coupling 10; it is understood that the second gear may be an internal tooth of the housing of the first coupling 10.

[0033] In some embodiments, the inner side of the first coupling 10 can be connected to the output shaft of the motor via a key. For example, a first keyway can be machined at the end of the motor's output shaft, and a second keyway matching the first keyway can be machined on the inner side of the sleeve component. The first and second keyways form a keyway space, which is then embedded by a flat key or spline. During operation, the side of the flat key or spline is in close contact with the first and second keyways. The torque on the motor's output shaft can be transmitted from the motor's output shaft to the sleeve component through the shear force of the flat key or spline, and thus transmitted through the first gear on the sleeve component to the second gear of the first coupling 10, and further to the housing of the first gear.

[0034] In other embodiments, the inner side of the first coupling 10 can be connected to the output shaft of the motor via a shrink sleeve. Specifically, a shrink sleeve can be provided between the inner side of the sleeve component of the first coupling 10 and the output shaft of the motor. The shrink sleeve can be a metal sleeve with tapered inner and outer surfaces, and can be tightened by high-strength bolts to cause the shrink sleeve to expand radially, thereby clamping the output shaft of the motor and the sleeve component.

[0035] In some embodiments, the inner side of the first coupling 10 can be connected to the output shaft of the motor via an interference fit. Specifically, the inner sleeve component of the first coupling 10 can be heated, causing the hole in the sleeve component to expand and fit into the output shaft of the motor. After cooling, the sleeve component shrinks, forming a tight seal. Torque can be transmitted through the friction between the inside of the sleeve component and the outside of the motor output shaft. Alternatively, the motor output shaft can be cooled, causing it to shrink and extend into the sleeve component. After the motor output shaft recovers and expands, it tightly seals against the inside of the sleeve component, thus achieving torque transmission.

[0036] In some embodiments, the second coupling 20 may be an output-side half coupling that can be connected to the high-speed shaft of the gearbox.

[0037] In some embodiments, a second sleeve component may be provided on the inner side of the second coupling 20, and the inner side of the second sleeve component may be connected to the high-speed shaft of the gearbox. Further, a third gear may be provided on the outer side of the second sleeve component; it is understood that the third gear may be an external tooth of the second sleeve component. Even further, a fourth gear may be provided on the inner side of the housing of the second coupling 20, which engages with the aforementioned third gear; it is understood that the fourth gear is an internal tooth of the housing of the second coupling 20.

[0038] It is understandable that the connection method between the second coupling 20 and the high-speed shaft of the gearbox is the same as or similar to the connection method between the first coupling 10 and the input shaft, and will not be elaborated here.

[0039] Specifically, the housing of the second coupling 20 can be detachably connected to the housing of the first coupling 10, for example, it can be connected via bolt assembly 40.

[0040] In some embodiments, the first protrusion may include a first flange structure 50, and the second protrusion may include a second flange structure 60.

[0041] Specifically, the housing of the first coupling 10 may have a first flange structure 50 on the side facing the second coupling 20, and the housing of the second coupling 20 may have a second flange structure 60 on the side facing the first coupling 10. Both the first flange structure 50 and the second flange structure 60 can be annular flanges. Further, the bolt assembly 40 can be high-strength alloy steel bolts, which can be used to connect the first flange structure 50 and the second flange structure 60, thereby connecting the housing of the first coupling 10 and the housing of the second coupling 20. In some embodiments, the bolt assembly 40 may include multiple bolts, which can be evenly arranged on the circumference of the first flange structure 50 and the second flange structure 60. Furthermore, these bolts can be tightened in a diagonal order to ensure uniform stress on the first flange structure 50 and the second flange structure 60.

[0042] In some embodiments, the detection component 30 is detachably disposed on the housing of the first coupling 10 and / or the housing of the second coupling 20, for detecting the parameters of the gear coupling.

[0043] In some embodiments, multiple detection components 30 may be provided, all of which may be disposed on the housing of the first coupling 10, and all of these detection components 30 may be disposed on the housing of the second coupling 20. In other embodiments, multiple detection components 30 may be disposed simultaneously on the housing of the first coupling 10 and the housing of the second coupling 20.

[0044] In some embodiments, the structural shape of the plurality of detection components 30 can be one or more of the following: bolts, buttons, tags, or straps. Further, the detection component 30 can be connected to the housing of the first coupling 10 and / or the housing of the second coupling 20 by means of welding, riveting, bonding, threaded connection, pin connection, elastic deformation connection, locking connection, or plug-in connection.

[0045] In some embodiments, when multiple detection components 30 are respectively disposed on the housing of the first coupling 10 and the housing of the second coupling 20, the multiple detection components 30 may be axially or circumferentially distributed along the housing of the first coupling 10 and / or the housing of the second coupling 20.

[0046] In some embodiments, the plurality of detection components 30 disposed on the housing of the first coupling 10 may be distributed axially, and the plurality of detection components 30 disposed on the housing of the second coupling 20 may also be distributed axially. In other embodiments, the plurality of detection components 30 disposed on the housing of the first coupling 10 may be distributed circumferentially along the first coupling 10, and the plurality of detection components 30 disposed on the housing of the second coupling 20 may also be distributed circumferentially along the second coupling 20.

[0047] In other embodiments, the plurality of detection components 30 disposed on the housing of the first coupling 10 may be distributed circumferentially along the first coupling 10, and the plurality of detection components 30 disposed on the housing of the second coupling 20 may be distributed axially. In still other embodiments, the plurality of detection components 30 disposed on the housing of the first coupling 10 may be distributed axially, and the plurality of detection components 30 disposed on the housing of the second coupling 20 may be distributed circumferentially along the second coupling 20.

[0048] In some embodiments, the parameters of a gear coupling may include the coupling's temperature, current, and motion posture.

[0049] In some embodiments, the receiving component may be disposed on the train and may be disposed in the peripheral area of ​​the gear coupling, for example, it may be disposed on the train's motor, gearbox, bogie frame or the train body.

[0050] In some embodiments, the receiving component may include a passive receiver and an active receiver. Preferably, the receiving component may be an active receiver, which has a built-in signal amplification circuit or active processing module, and can improve signal quality through active gain technology. This active receiver can collect, process, store, and transmit the data detected by the detection component 30.

[0051] The solution proposed in this application allows for the monitoring of gear couplings within a limited space by using a detection component 30 that can be detachably mounted on the housing of the first coupling 10 and / or the housing of the second coupling 20. Furthermore, by including a receiving component, when the detection component 30 identifies an abnormal operating condition, a maintenance command can be triggered promptly, thereby preventing escalation of the fault and improving safety and reliability.

[0052] In some embodiments, the interior of the first coupling 10 is configured with a combination of drum-shaped teeth and straight teeth, and the interior of the second coupling 20 is also configured with a combination of drum-shaped teeth and straight teeth.

[0053] In some embodiments, the first gear on the outer side of the sleeve component of the first coupling 10 can be a drum-shaped tooth, and the second gear on the inner side of the housing of the first coupling 10 can all be straight teeth. Similarly, the third gear on the outer side of the sleeve component of the second coupling 20 can be a drum-shaped tooth, and the fourth gear on the inner side of the housing of the second coupling 20 can all be straight teeth. It should be understood that the tooth profile of the drum-shaped tooth is a spherical arc (the tooth blank is a sphere), and the tooth tip can be machined into a circular arc, with the center of the sphere coinciding with the gear axis. Its tooth surface contact line automatically adjusts with shaft displacement, always distributed in the middle of the tooth width, which can avoid uneven loading at the tooth ends and result in more uniform contact stress.

[0054] In summary, by selecting the tooth profile of the gears in the first coupling 10 and the second coupling 20, it is possible to compensate for large angular displacement, radial displacement and axial displacement, and to adapt to the offset of the shaft system caused by installation error, vibration or thermal expansion and contraction.

[0055] Figure 3 An exemplary cross-sectional view of a gear coupling according to some embodiments of this application is shown. Figure 3 As shown, one or more grooves 11 are provided on the housing of the first coupling 10 and / or the housing of the second coupling 20. The detection component 30 is detachably disposed in the groove 11. The detection component 30 includes: one or more wireless sensors for detecting parameters of the gear coupling; and an antenna component for transmitting the parameters detected by the wireless sensors to the receiving component.

[0056] In some embodiments, the detection component 30 is disposed within the groove 11 by one or more of the following methods: welding, riveting, bonding, threaded connection, pin connection, elastic deformation connection, locking connection, or plugging. In some embodiments, a sealing component is disposed within the groove 11 for sealing the detection component 30.

[0057] In some embodiments, when a plurality of grooves 11 are provided on the housing of the first coupling 10 and / or the housing of the second coupling 20, all of these grooves 11 may be provided on the housing of the first coupling 10, and all of these grooves 11 may be provided on the housing of the second coupling 20. In other embodiments, the plurality of grooves 11 may be provided on both the housing of the first coupling 10 and the housing of the second coupling 20.

[0058] In some embodiments, when a plurality of grooves 11 are respectively provided on the housing of the first coupling 10 and the housing of the second coupling 20, the plurality of grooves 11 may be axially distributed or circumferentially distributed along the housing of the first coupling 10 and / or the housing of the second coupling 20.

[0059] In some embodiments, the plurality of grooves 11 provided on the housing of the first coupling 10 may be distributed axially, and the plurality of grooves 11 provided on the housing of the second coupling 20 may also be distributed axially. In other embodiments, the plurality of grooves 11 provided on the housing of the first coupling 10 may be distributed circumferentially along the first coupling 10, and the plurality of grooves 11 provided on the housing of the second coupling 20 may also be distributed circumferentially along the second coupling 20.

[0060] In other embodiments, the plurality of grooves 11 provided on the housing of the first coupling 10 may be distributed circumferentially along the first coupling 10, and the plurality of grooves 11 provided on the housing of the second coupling 20 may be distributed axially. In still other embodiments, the plurality of grooves 11 provided on the housing of the first coupling 10 may be distributed axially, and the plurality of grooves 11 provided on the housing of the second coupling 20 may be distributed circumferentially along the second coupling 20.

[0061] In some embodiments, the detection component 30 may be disposed in the groove 11 by one or more of the following methods: welding, riveting, bonding, threaded connection, pin connection, elastic deformation connection, locking connection or plugging.

[0062] In some embodiments, the detection component 30 may include one or more wireless sensors and antenna components.

[0063] In some embodiments, a wireless sensor may be disposed within the recess 11. The wireless sensor may include a vibration monitoring sensor, a temperature monitoring sensor, a torque / stress sensor, a displacement / gap sensor, a speed / phase sensor, and an acoustic sensor, etc. Specifically, the vibration monitoring sensor may include a micro-electro-mechanical systems (MEMS) or a vibration transducer, etc. The temperature monitoring sensor may include an infrared thermopile sensor or a fiber Bragg grating temperature sensor, etc. The torque / stress sensor may include a strain gauge bridge or a surface acoustic wave torque meter, etc. The displacement / gap sensor may include an eddy current displacement sensor or a laser triangulation rangefinder, etc. The acoustic sensor may include a wideband microphone, etc.

[0064] In some embodiments, the temperature detection range of the detection component 30 can be -50℃ to 150℃, and its measurement error can be less than or equal to ±5℃. The angular velocity monitoring range of the detection component 30 can be 0 rad / s to 1000 rad / s, and its measurement error can be less than or equal to ±10 rad / s. The tilt angle detection range of the detection component 30 can be -20° to +20°, and the measurement error can be less than or equal to ±0.2°. The error range of other physical quantities can not exceed 5% of the detection range.

[0065] In some embodiments, the antenna assembly may include an inverted-F antenna, a ceramic patch antenna, or a flexible PCB antenna, etc. In some embodiments, the antenna assembly can transmit parameters detected by the wireless sensor to the receiving assembly. The antenna assembly can also be disposed within the aforementioned groove 11. Furthermore, a sealing assembly can be disposed within the groove 11, thereby achieving sealing of the wireless sensor and the antenna assembly. For example, after the wireless sensor and the antenna assembly are disposed within the groove 11, they can be sealed by means of potting compound filling layer, metal end cap sealing, or surface oleophobic coating, which can isolate water and grease, adapt to temperature alternation environment of -60~200℃, withstand certain vibration and shock, and have corrosion resistance and flame retardancy of not less than 480h neutral salt spray test. In some embodiments, after the detection assembly 30 is disassembled, the lubricating medium inside the coupling can be detected and updated, thereby performing online maintenance on the coupling.

[0066] In some embodiments, the parameters of the gear coupling include one or more of temperature, acceleration, angular velocity, pressure, tilt angle, and current, and the wireless sensors of the detection component 30 may include temperature sensors, acceleration sensors, angular velocity sensors, pressure sensors, tilt angle sensors, and current sensors, etc.

[0067] Figure 4 Exemplary block diagrams of a monitoring method 400 for gear couplings according to some embodiments of this application are shown. Figure 4 As shown, this application also provides a monitoring method for gear couplings, which is applied to any of the gear couplings described above. The monitoring method 400 includes: S401 obtaining a first parameter of the gear coupling at preset time intervals; S402 preprocessing the first parameter to obtain a second parameter; S403 determining whether there is an abnormality in the gear coupling based on the second parameter.

[0068] In some embodiments, the preset time can be set according to the operating conditions of the gear coupling. The preset time can be less than or equal to 60 seconds. For example, the first parameter of the gear coupling can be obtained at intervals of 60 seconds, 40 seconds, or 20 seconds. It is understood that the preset time needs to be greater than 0; for example, the preset time can be 1 second. In some embodiments, the first parameter can be obtained through a wireless sensor of the gear coupling. The first parameter may include a temperature sensor, an acceleration sensor, an angular velocity sensor, a pressure sensor, an tilt sensor, and a current sensor, etc.

[0069] In some embodiments, the preprocessing of the first parameter to obtain the second parameter includes: amplifying the first parameter; and filtering the amplified first parameter.

[0070] In some embodiments, the first parameter can be preprocessed using an active receiver on the gear coupling. Preprocessing may include signal amplification and filtering of the first parameter. After amplification, the active receiver can enhance the previously obtained weak electrical signal (e.g., voltage, current, or power), facilitating subsequent processing. After obtaining the amplified first parameter, filtering can be performed to eliminate noise. After preprocessing the first parameter, a second parameter can be obtained. In some embodiments, the active receiver can acquire, process, store, and transmit the first parameter.

[0071] In some embodiments, the monitoring method further includes triggering a maintenance command in response to an abnormality in the gear coupling. Specifically, a comparison can be made between an obtained second parameter and a preset standard parameter range. If the second parameter is not within the preset standard parameter range, the gear coupling may be abnormal. Further, when an abnormality is found in the deterministic coupling, the active receiver can trigger a maintenance command to remind the user that the gear coupling may require repair or replacement.

[0072] In some embodiments, the train on which the gear coupling is located or the remote information center may also include a remote terminal. This remote terminal can receive maintenance commands triggered by an active receiver, thereby enabling early warning or maintenance decisions. Furthermore, the remote terminal can perform trend analysis, anomaly detection, fault diagnosis, and fault alarms on the collected data.

[0073] In summary, through its own solution, this embodiment of the application, with the detection component 30 detachably mounted on the housing of the first coupling 10 and / or the housing of the second coupling 20, enables monitoring of the gear coupling within a limited space. Furthermore, by including a receiving component, when the detection component 30 identifies an abnormal operating condition, a maintenance command can be triggered promptly, thereby preventing escalation of the fault and improving safety and reliability.

[0074] While numerous embodiments of this application have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will arise for those skilled in the art without departing from the spirit and intent of this application. It should be understood that various alternatives to the embodiments of this application described herein may be employed in the practice of this application. The appended claims are intended to define the scope of protection of this application and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A gear coupling for a train, the gear coupling connecting the train's motor and gearbox, characterized in that, The gear coupling includes a first coupling (10), a second coupling (20), a detection component (30), and a receiving component; wherein, The inner side of the first coupling is connected to the output shaft of the motor; The inner side of the second coupling is connected to the high-speed shaft of the gearbox, and the outer shell of the second coupling is detachably connected to the outer shell of the first coupling; The detection component (30) is detachably mounted on the housing of the first coupling and / or the housing of the second coupling, and is used to detect the parameters of the gear coupling; The receiving component is installed on the train and is used to receive parameters detected by the detection component.

2. The gear coupling according to claim 1, characterized in that, The first coupling has internal components where drum-shaped teeth mesh with straight teeth, and the second coupling also has internal components where drum-shaped teeth mesh with straight teeth.

3. The gear coupling according to claim 1, characterized in that, The first coupling has a first protrusion on its housing, and the second coupling has a second protrusion on its housing opposite to the first protrusion. The first protrusion and the second protrusion are detachably connected.

4. The gear coupling according to claim 3, characterized in that, The first protrusion and the second protrusion are connected by a plurality of spaced bolt assemblies (40).

5. The gear coupling according to claim 1, characterized in that, One or more grooves (11) are provided on the housing of the first coupling and / or the housing of the second coupling, and the detection component (30) is detachably disposed in the groove (11), wherein the detection component (30) includes: One or more wireless sensors are used to detect parameters of the gear coupling; and An antenna assembly for transmitting parameters detected by the wireless sensor to a receiving assembly.

6. The gear coupling according to claim 5, characterized in that, The detection component (30) is disposed in the groove by one or more of the following methods: welding, riveting, bonding, threaded connection, pin connection, elastic deformation connection, locking connection or plugging.

7. The gear coupling according to claim 5, characterized in that, A sealing component is provided in the groove for sealing the detection component (30).

8. The gear coupling according to claim 1, characterized in that, The detection component (30) is disposed on the housing of the first coupling and / or the housing of the second coupling along the axial and / or circumferential direction of the gear coupling.

9. The gear coupling according to any one of claims 1-8, characterized in that, The parameters of the gear coupling include one or more of the following: temperature, acceleration, angular velocity, pressure, tilt angle, and current.

10. A monitoring method for gear couplings used in trains, characterized in that, The method is applied to the gear coupling as described in any one of claims 1-8, and the monitoring method includes: The first parameters of the gear coupling are obtained at preset intervals. The first parameter is preprocessed to obtain the second parameter; Based on the second parameter, it is determined whether the gear coupling is malfunctioning.

11. The monitoring method according to claim 10, characterized in that, The preprocessing of the first parameter to obtain the second parameter includes: The first parameter is subjected to signal amplification processing; The first parameter of the amplified signal is filtered.

12. The monitoring method according to claim 10, characterized in that, The monitoring method further includes: triggering a maintenance command in response to an abnormality in the gear coupling.

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