Bogie having dynamic performance monitored online, and railway vehicle

Abstract

Provided are a bogie having dynamic performance monitored online, and a railway vehicle. The bogie having dynamic performance monitored online comprises wheels (1), a wireless transmission force measuring assembly (4), a wireless telemetry receiving assembly (5) and a controller. The wireless transmission force measuring assembly (4) is used for measuring stress changes in X, Y and Z directions on the inner side of a spoke plate (11) in each wheel (1), and converting stress change information into a magnetic signal. The wireless telemetry receiving assembly (5) is wirelessly connected to the wireless transmission force measuring assembly (4), and is used for receiving the magnetic signal sent by the wireless transmission force measuring assembly (4) and sending the magnetic signal to the controller. In the bogie having dynamic performance monitored online, the wireless telemetry receiving assembly (5) is wirelessly connected to the wireless transmission force measuring assembly (4), so that the impact on line connection in the vehicle advancing process can be avoided, and the safety and comfort of a vehicle in the vehicle advancing process are monitored in real time.

Description

A dynamic performance online monitoring bogie and rail vehicle

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on August 7, 2023, with application number 202310984098.8 and invention name “A bogie and rail vehicle for online monitoring of dynamic performance”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present invention relates to the technical field of rail vehicles, and more specifically, to a bogie for online dynamic performance monitoring. Furthermore, the present invention also relates to a rail vehicle comprising the bogie for online dynamic performance monitoring. Background Art

[0003] Dynamic indicators of rail vehicles, such as operational safety, stability, and comfort, are key performance parameters that need to be measured during vehicle driving tests. However, as the vehicle operates, the performance parameters of the vehicle and track will change. Under current conditions, it is impossible to measure data on safety and comfort throughout the vehicle's entire life cycle.

[0004] In summary, how to provide a dynamic performance online monitoring bogie that can monitor the safety and comfort of a vehicle in real time is an urgent problem to be solved by those skilled in the art.

[0005] Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a bogie for online monitoring of dynamic performance, which can obtain the dynamic performance parameters of the vehicle in real time, thereby enabling real-time monitoring of the safety and comfort of the vehicle.

[0007] Another object of the present invention is to provide a rail vehicle comprising the above-mentioned dynamic performance online monitoring bogie.

[0008] In order to achieve the above object, the present invention provides the following technical solutions:

[0009] A bogie for online monitoring of dynamic performance, comprising: wheels, a wireless transmitting force measuring component, a wireless telemetry receiving component and a controller;

[0010] The wireless transmission force measurement component is used to detect stress changes in the inner side of the wheel spoke in the three directions of X, Y, and Z, and convert the stress change information into a magnetic signal; any two of the three directions of X, Y, and Z are perpendicular to each other;

[0011] The wireless telemetry receiving component is wirelessly connected to the wireless transmitting force measuring component and is used to receive the magnetic signal emitted by the wireless transmitting force measuring component and send the magnetic signal to the controller;

[0012] The controller is used to calculate the dynamic performance parameters of the bogie according to the received magnetic signal.

[0013] Optionally, the wireless transmission force measurement component includes a strain gauge, a power induction coil and a signal induction coil;

[0014] The strain gauge is provided on the spoke of the wheel, and is used to detect stress changes in the X, Y, and Z directions on the inner side of the spoke of the wheel and output electrical signals;

[0015] The signal induction coil is used to receive the electrical signal measured by the strain gauge and convert the electrical signal into a magnetic signal and send it to the wireless telemetry receiving component;

[0016] The power induction coil is used to supply power to the signal induction coil.

[0017] Optionally, there are multiple strain gauges for detecting stress changes in the same direction of the three directions X, Y, and Z, and the multiple strain gauges are arranged at different positions.

[0018] Optionally, it also includes an axle connected to the wheel, the power induction coil and the signal induction coil are both arranged on the axle, and any two of the strain gauge, the power induction coil, and the signal induction coil are connected by a cable, and the cable is arranged on the outer surface of the axle.

[0019] Optionally, the power induction coil and the signal induction coil are both arranged on the outer surface of the axle and rotate synchronously with the axle.

[0020] Optionally, the wireless telemetry receiving component includes a wireless signal sensing probe and a wireless power supply sensing probe, and the wireless sensing probe is connected to a power supply to provide an alternating magnetic field;

[0021] The power induction coil generates current under the action of the alternating magnetic field; the wireless signal induction probe is used to receive the magnetic signal emitted by the signal induction coil and send the magnetic signal to the controller.

[0022] Optionally, it further includes a bogie body and a mounting frame fixedly connected to the bogie body, and the wireless signal sensing probe and the wireless power supply sensing probe are both installed on the mounting frame.

[0023] Optionally, a first acceleration sensor is further included which is installed on the bogie body, and the first acceleration sensor is used to detect the acceleration of the bogie body and transmit the acceleration information to the controller.

[0024] Optionally, a second acceleration sensor is further included, which is installed on the wheelset and is used to detect the acceleration of the wheelset and transmit the acceleration information to the controller.

[0025] A rail vehicle comprises any one of the above-mentioned bogies for online monitoring of dynamic performance.

[0026] In the process of using the dynamic performance online monitoring bogie provided by the present invention, the stress changes of the wheels in the X, Y, and Z directions can be obtained through the wireless transmitting force measuring component, and the stress change information is converted into a magnetic signal and sent to the wireless telemetry receiving component. The wireless telemetry receiving component sends the magnetic signal to the controller, and the controller is used to calculate the dynamic performance parameters of the bogie based on the received magnetic signal. By combining the stress changes of the wheels in the X, Y, and Z directions with the known bogie information, parameters such as the vehicle's derailment coefficient, axle load reduction rate, and axle lateral force can be obtained, thereby enabling real-time monitoring of the vehicle's safety and comfort.

[0027] In addition, the wireless connection between the wireless telemetry receiving component and the wireless transmitting force measuring component in the dynamic performance online monitoring bogie provided by the present invention can avoid the impact on the line connection during the vehicle's movement, and realize real-time monitoring of the safety and comfort of the vehicle during the vehicle's movement.

[0028] In addition, the present invention also provides a rail vehicle including the above-mentioned dynamic performance online monitoring bogie. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0030] FIG1 is a schematic structural diagram of a specific embodiment of a bogie for online monitoring of dynamic performance provided by the present invention;

[0031] FIG2 is a schematic diagram of the installation position of the wireless transmission force measurement component in the bogie for online dynamic performance monitoring in FIG1 ;

[0032] FIG3 is a schematic diagram of the installation position of the wireless telemetry receiving component in the bogie for online monitoring of dynamic performance in FIG1 ;

[0033] FIG4 is a schematic top view of a specific embodiment of a bogie for online monitoring of dynamic performance provided by the present invention.

[0034] In Figures 1 to 4: 1 is a wheel, 11 is a spoke, 2 is a bogie body, 21 is a mounting frame, 3 is an axle, 4 is a wireless transmitting force measuring component, 41 is a strain gauge, 42 is a power induction coil, 43 is a signal induction coil, 5 is a wireless telemetry receiving component, 51 is a wireless signal induction probe, 52 is a wireless power induction probe, 6 is a first acceleration sensor, and 7 is a second acceleration sensor. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] The core of the present invention is to provide a bogie for online monitoring of dynamic performance, which can obtain the dynamic performance parameters of the vehicle in real time, thereby enabling real-time monitoring of the safety and comfort of the vehicle.

[0037] Another core of the present invention is to provide a rail vehicle including the above-mentioned dynamic performance online monitoring bogie.

[0038] Please refer to Figures 1 to 4.

[0039] This specific embodiment discloses a bogie for online monitoring of dynamic performance, comprising: a wheel 1, a wireless transmitting force measuring component 4, a wireless telemetry receiving component 5, and a controller; the wireless transmitting force measuring component 4 is used to detect stress changes in the X, Y, and Z directions inside the spoke 11 of the wheel 1, and convert the stress change information into a magnetic signal; any two of the three directions X, Y, and Z are perpendicular to each other; the wireless telemetry receiving component 5 is wirelessly connected to the wireless transmitting force measuring component 4, and is used to receive the magnetic signal emitted by the wireless transmitting force measuring component 4 and send the magnetic signal to the controller; the controller is used to calculate the dynamic performance parameters of the bogie based on the received magnetic signal.

[0040] In the process of using the dynamic performance online monitoring bogie provided by this specific embodiment, the stress changes of the wheel 1 in the three directions of X, Y, and Z can be obtained through the wireless transmission force measuring component 4, and the stress change information is converted into a magnetic signal and sent to the wireless telemetry receiving component 5. The wireless telemetry receiving component 5 sends the magnetic signal to the controller, and the controller is used to calculate the dynamic performance parameters of the bogie based on the received magnetic signal. By combining the stress changes of the wheel 1 in the three directions of X, Y, and Z with the known bogie information, the vehicle's derailment coefficient, axle load reduction rate, axle lateral force and other parameters can be obtained, so that the safety and comfort of the vehicle can be monitored in real time.

[0041] It should be noted that, in the actual calculation process, the process of obtaining parameters such as the vehicle's derailment coefficient, axle unloading rate, and axle lateral force through the stress changes of the wheel 1 in the X, Y, and Z directions and the known relevant information of the bogie, such as the weight and friction of the bogie, is conventional existing technology and will not be elaborated here.

[0042] The three directions X, Y, and Z mentioned in this specific embodiment are generally the vertical direction, the horizontal direction, and the direction perpendicular to the plane where the vertical and horizontal directions are located. Of course, they can also be three other directions perpendicular to each other. The specific direction is determined according to the actual situation and will not be elaborated here.

[0043] The wireless connection between the wireless telemetry receiving component 5 and the wireless transmitting force measuring component 4 in the dynamic performance online monitoring bogie provided in this specific embodiment can avoid the impact on the line connection during the vehicle's movement, and realize real-time monitoring of the safety and comfort of the vehicle during the vehicle's movement.

[0044] In a specific embodiment, the wireless transmitting force measuring component 4 includes a strain gauge 41, a power induction coil 42 and a signal induction coil 43; the strain gauge 41 is arranged on the spoke 11 of the wheel 1, and is used to detect the stress changes in the X, Y and Z directions inside the spoke 11 of the wheel 1 and output electrical signals; the signal induction coil 43 is used to receive the electrical signal measured by the strain gauge 41 and convert the electrical signal into a magnetic signal and send it to the wireless telemetry receiving component 5; the power induction coil 42 is used to power the signal induction coil 43.

[0045] The installation position of the strain gauge 41 is shown in Figure 2. Preferably, in order to make the measured data more accurate, a plurality of strain gauges 41 can be used to detect stress changes in the same direction of the three directions X, Y, and Z, and the plurality of strain gauges 41 can be set at different positions; in the actual calculation process, the data measured by the plurality of strain gauges 41 can discard the end values ​​and take the average value to avoid the problem of inaccurate individual data.

[0046] During actual use, the strain gauge 41 and the power induction coil 42, the power induction coil 42 and the signal induction coil 43, and the signal induction coil 43 and the strain gauge 41 are all connected by cables, and the bogie also includes an axle 3 connected to the wheel 1, the power induction coil 42 and the signal induction coil 43 are both arranged on the axle 3, and any two of the strain gauge 41, the power induction coil 42, and the signal induction coil 43 are connected by cables, and the cables are arranged on the outer surface of the axle 3.

[0047] As shown in FIG. 2 , the strain gauge 41 is disposed on the inner side of the spoke 11 of the wheel 1 , and the power induction coil 42 and the signal induction coil 43 are both disposed on the axle 3 and can rotate along with the axle 3 .

[0048] Any two of the strain gauge 41, power induction coil 42, and signal induction coil 43 are connected by cables, which are installed on the outer surface of the axle 3. This avoids the need for cables to pass through the spokes 11 of the wheel 1 or the axle 3, eliminating the need to machine through-holes in the spokes 11 or the axle 3, thus facilitating operation. Furthermore, both the power induction coil 42 and the signal induction coil 43 are installed on the outer surface of the axle 3 and rotate synchronously with the axle 3.

[0049] As shown in Figure 3, the wireless telemetry receiving component 5 includes a wireless signal sensing probe 51 and a wireless power sensing probe 52. The wireless sensing probe is connected to a power supply to provide an alternating magnetic field; the power induction coil 42 generates current under the action of the alternating magnetic field; the wireless signal sensing probe 51 is used to receive the magnetic signal emitted by the signal induction coil 43 and send the magnetic signal to the controller.

[0050] As shown in FIG1 , the mechanical properties online monitoring bogie further includes a bogie body 2 and a mounting frame 21 fixedly connected to the bogie body 2 , and the wireless signal sensing probe 51 and the wireless power supply sensing probe 52 are both mounted on the mounting frame 21 .

[0051] The wireless power supply induction probe 52 is connected to the 110V power supply on the rail vehicle and can generate an alternating magnetic field. When the axle 3 is rotating or not rotating, since the magnetic field is an alternating magnetic field, the magnetic field in the power induction coil 42 arranged on the axle 3 will change, and current will be generated in the power induction coil 42. The current is transmitted to the signal induction coil 43 to power the signal induction coil 43.

[0052] Compared with the existing technology, there is no cable connection between the wireless power supply induction probe 52 and the power supply induction coil 42 provided by the present invention. When the vehicle is moving, there is no need to worry about the impact of the rotation of the axle 3 on the cable. In addition, no matter whether the axle 3 is rotating or stationary, as long as the wireless power supply induction probe 52 is connected to the power supply and generates an alternating magnetic field, current can be generated in the power supply induction coil 42, which can realize the actual online monitoring of the vehicle's dynamic performance when the vehicle is in driving state or stationary state.

[0053] During actual use, the strain gauge 41 is used to obtain the stress changes in the X, Y, and Z directions on the inner side of the spoke 11 of the wheel 1 and output an electrical signal to the signal induction coil 43. The signal induction coil 43 is powered by the power induction coil 42. The signal induction coil 43 converts the electrical signal into a magnetic signal and sends it to the wireless signal induction probe 51. The signal induction coil 43 and the wireless signal induction probe 51 are wirelessly connected to each other, so as to be suitable for monitoring the vehicle's driving status.

[0054] In a specific embodiment, the dynamic performance online monitoring bogie also includes a first acceleration sensor 6 installed on the bogie body 2, the first acceleration sensor 6 is used to detect the acceleration of the bogie body 2, and transmit the acceleration information to the controller; it can also include a second acceleration sensor 7 installed on the wheelset, the second acceleration sensor 7 is used to detect the acceleration of the wheelset, and transmit the acceleration information to the controller; in the specific use process, the acceleration of the bogie body 2 is obtained by the first acceleration sensor 6, and the acceleration of the wheelset is obtained by the second acceleration sensor 7 to sense the vibration excitation between the wheel and rail, and the abnormality of the rail or the abnormality of the wheel 1 is reflected by the abnormality of the vibration acceleration.

[0055] In addition to the above-mentioned dynamic performance online monitoring bogie, the present invention also provides a rail vehicle including the dynamic performance online monitoring bogie disclosed in the above-mentioned embodiment. For the structures of other parts of the rail vehicle, please refer to the prior art and will not be described in detail herein.

[0056] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other. Any combination of all the embodiments provided by the present invention is within the scope of protection of this invention and will not be described in detail here.

[0057] The above is a detailed introduction to the bogie and rail vehicle for online monitoring of dynamic performance provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in several ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A bogie for online monitoring of dynamic performance, characterized in that: include: Wheel (1), wireless transmitting force measuring component (4), wireless telemetry receiving component (5) and controller; The wireless transmission force measurement component (4) is used to detect stress changes in three directions, X, Y and Z, on the inner side of the spoke plate (11) of the wheel (1), and convert the stress change information into a magnetic signal; any two directions of the three directions, X, Y and Z, are perpendicular to each other; The wireless telemetry receiving component (5) is wirelessly connected to the wireless transmitting force measuring component (4) and is used to receive the magnetic signal emitted by the wireless transmitting force measuring component (4) and send the magnetic signal to the controller; The controller is used to calculate the dynamic performance parameters of the bogie according to the received magnetic signal.

2. The bogie for online monitoring of dynamic performance according to claim 1, characterized in that: The wireless transmission force measurement component (4) comprises a strain gauge (41), a power induction coil (42) and a signal induction coil (43); The strain gauge (41) is arranged on the spoke plate (11) of the wheel (1) and is used to detect stress changes in three directions, X, Y and Z, on the inner side of the spoke plate (11) of the wheel (1) and output electrical signals; The signal induction coil (43) is used to receive the electrical signal measured by the strain gauge (41) and convert the electrical signal into a magnetic signal and send it to the wireless telemetry receiving component (5); The power induction coil (42) is used to supply power to the signal induction coil (43).

3. The bogie for online monitoring of dynamic performance according to claim 2, characterized in that: The number of the strain gauges (41) used to detect stress changes in the same direction of the three directions of X, Y and Z is multiple, and the multiple strain gauges (41) are arranged at different positions.

4. The bogie for online monitoring of dynamic performance according to claim 2, characterized in that: It also includes an axle (3) connected to the wheel (1), the power induction coil (42) and the signal induction coil (43) are both arranged on the axle (3), and any two of the strain gauge (41), the power induction coil (42) and the signal induction coil (43) are connected via a cable, and the cable is arranged on the outer surface of the axle (3).

5. The bogie for online monitoring of dynamic performance according to claim 4, characterized in that: The power induction coil (42) and the signal induction coil (43) are both arranged on the outer surface of the axle (3) and rotate synchronously with the axle (3).

6. The bogie for online monitoring of dynamic performance according to claim 2, characterized in that: The wireless telemetry receiving component (5) comprises a wireless signal sensing probe (51) and a wireless power supply sensing probe (52), wherein the wireless sensing probe is connected to a power source to provide an alternating magnetic field; The power induction coil (42) generates current under the action of the alternating magnetic field; the wireless signal induction probe (51) is used to receive the magnetic signal emitted by the signal induction coil (43) and send the magnetic signal to the controller.

7. The bogie for online monitoring of dynamic performance according to claim 6, characterized in that: It also comprises a bogie body (2) and a mounting frame (21) fixedly connected to the bogie body (2), and the wireless signal sensing probe (51) and the wireless power supply sensing probe (52) are both mounted on the mounting frame (21).

8. The bogie for online monitoring of dynamic performance according to claim 7, characterized in that: It also includes a first acceleration sensor (6) installed on the bogie body (2), wherein the first acceleration sensor (6) is used to detect the acceleration of the bogie body (2) and transmit the acceleration information to the controller.

9. The bogie for online monitoring of dynamic performance according to any one of claims 1 to 8, characterized in that: It also includes a second acceleration sensor (7) installed on the wheelset, the second acceleration sensor (7) being used to detect the acceleration of the wheelset and transmit the acceleration information to the controller.

10. A rail vehicle, characterized in that: A bogie for online monitoring of dynamic performance comprising the bogie described in any one of claims 1 to 9.

Images