A multi-system integrated running gear monitoring system

Abstract

The present invention discloses a multi-system fusion running gear monitoring system, including a running gear monitoring host, a preprocessor, a vehicle body vibration sensor, a frame vibration sensor, a gearbox vibration sensor, an axle box composite sensor, a gearbox composite sensor and a motor composite sensor, wherein the frame vibration sensor, the gearbox vibration sensor, the axle box composite sensor, the gearbox composite sensor and the motor composite sensor are installed on a bogie, the vehicle body vibration sensor is connected to the running gear monitoring host via CAN communication, the preprocessor is connected to other sensors via CAN communication, the preprocessor is connected to the running gear monitoring host via Ethernet, the axle box composite sensor, the gearbox composite sensor and the motor composite sensor include a connector, a nylon hose and a probe, and a vibration reinforcement member is provided on the probe. Compared with the prior art, the present invention has the advantages of complete functions, strong anti-interference ability and high monitoring sensitivity.

Description

Technical Field

[0001] The present invention relates to the technical field of train status monitoring, and in particular to a multi-system integrated running gear monitoring system. Background Art

[0002] The running gear monitoring system is the doctor of the rail vehicle. Its main function is to diagnose the health status of key components of the running gear. The conventional running gear monitoring system is composed of a running gear monitoring host, a pre-processor and composite sensors of various parts. The existing running gear monitoring system is not fully functional, the signal transmission distortion is serious, and the monitoring sensitivity needs to be improved. In view of this, the inventor of this application has obtained a running gear monitoring system with multi-system integration after in-depth research. Summary of the invention

[0003] The purpose of the present invention is to provide a multi-system integrated running gear monitoring system, which has the advantages of complete functions, strong anti-interference ability and high monitoring sensitivity.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] A multi-system integrated running gear monitoring system, comprising a running gear monitoring host, a preprocessor, a vehicle body vibration sensor, a frame vibration sensor, a gear box vibration sensor, an axle box composite sensor, a gear box composite sensor and a motor composite sensor, the running gear monitoring host is installed in a carriage screen cabinet, the preprocessor and the vehicle body vibration sensor are installed at the bottom of the vehicle body, the frame vibration sensor, the gear box vibration sensor, the axle box composite sensor, the gear box composite sensor and the motor composite sensor are installed on the bogie, the vehicle body vibration sensor is connected to the running gear monitoring host via CAN communication, the frame vibration sensor, the gear box vibration sensor, the axle box composite sensor, the gear box composite sensor The sensor and the motor composite sensor are connected to the preprocessor via CAN communication, and the preprocessor is connected to the running gear monitoring host via Ethernet. The axle box composite sensor, the gear box composite sensor and the motor composite sensor include a connector, a nylon hose and a probe. The nylon hose connects the connector and the probe. A vibration reinforcement member is provided on the probe. The vibration reinforcement member includes an elastic support member and an action sheet. The elastic support member includes a flexible adhesive portion, a support portion and a knocking portion. The flexible adhesive portion is adhered to the side of the probe, the support portion is arranged on the adhesive portion, the action sheet is arranged on the support portion, and the adhesive portion is provided with a knocking hole corresponding to the knocking portion.

[0006] In a preferred embodiment, the running gear monitoring host includes a chassis and a power board, a speed board, a data acquisition board, an MVB board, a computer board, a stability monitoring board and a 4G board arranged in the chassis.

[0007] In a preferred embodiment, the probe is provided with a DS18B20 digital temperature chip and piezoelectric ceramics.

[0008] In a preferred embodiment, the supporting part includes a supporting rod and a plurality of flexible metal wires, the bottom of the supporting rod is connected to the flexible adhesive part, the flexible metal wire includes a continuous ascending section, a bending section and a descending section, the ascending section is connected to the supporting rod, the action piece is arranged on the bending section, and the lower end of the descending section forms the knocking part.

[0009] In a preferred embodiment, the flexible adhesive sheet is made of rubber material.

[0010] In a preferred embodiment, the action piece is arranged in an arch shape, and a plurality of the vibration reinforcement members are provided, and the plurality of the vibration reinforcement members are arranged around the probe, and the action pieces of the plurality of the vibration reinforcement members overlap with each other to form an annular space together.

[0011] In a preferred embodiment, the action piece includes a hard body and a flexible edge arranged on the edge of the hard body.

[0012] In a preferred embodiment, the vehicle body vibration sensor, gearbox vibration sensor and frame vibration sensor include an insulating plate, a sensor body, an insulating gasket, a stop pad and an insulating bolt. The sensor body is configured as an acceleration sensor. The insulating plate is provided with a connecting screw hole. The insulating bolt passes through the insulating gasket, the sensor body and the stop pad and then cooperates with the connecting screw hole.

[0013] Compared with the prior art, the present invention provides a multi-system integrated running gear monitoring system, which integrates all functions of six systems including a running gear fault diagnosis system, a derailment detection system, a stability monitoring system, an instability detection system, an axle temperature alarm system and a vehicle dynamics analysis system, reduces the installation space, and reduces the cost under the condition of ensuring full functions; the system layout is reasonable, and under the condition of ensuring the system functions, the signal transmission anti-interference ability from the sensor to the pre-processor and from the pre-processor to the host is stronger, and the accuracy of the detection data is higher; the vibration reinforcement member provided by the present invention can effectively enhance the vibration detection sensitivity of the composite sensor, and the vibration reinforcement member is connected to the side of the probe, which is equivalent to forming a vibration reinforcement layer on the outer side of the probe. During the working process, when vibration occurs, the action piece is elastically supported, and it will vibrate, thereby driving the knocking part to move. The knocking part knocks the knocking hole during the movement to transmit the vibration to the probe. The setting of the knocking hole can reduce the sound generated during the knocking, thereby avoiding excessive noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention relates to a structural schematic diagram of a multi-system integrated running gear monitoring system.

[0015] Figure 2 The present invention relates to a schematic diagram of the internal structure of a running gear monitoring host of a running gear monitoring system integrating multiple systems and the structural components cooperating therewith.

[0016] Figure 3 The invention relates to a structural schematic diagram of a composite sensor of a multi-system fusion running gear monitoring system.

[0017] Figure 4 The present invention relates to a structural schematic diagram of a vibration reinforcement component of a composite sensor of a multi-system fusion running gear monitoring system.

[0018] Figure 5 The present invention relates to a structural schematic diagram of a vibration reinforcement component without an action piece of a composite sensor of a multi-system fusion running gear monitoring system.

[0019] Figure 6 yes Figure 5 Schematic diagram of the enlarged structure of part A.

[0020] Figure 7 The present invention relates to a structural schematic diagram of a pre-processor of a multi-system integrated running gear monitoring system.

[0021] Figure 8 The present invention relates to a structural schematic diagram of a vibration sensor of a multi-system integrated running gear monitoring system.

[0022] In the picture

[0023] Running gear monitoring host 1; pre-processor 2; vehicle body vibration sensor 3; frame vibration sensor 4; gear box vibration sensor 5; axle box composite sensor 6; gear box composite sensor 7; motor composite sensor 8; power board 9; speed board 10; data acquisition board 11; MVB board 12; computer board 13; stability monitoring board 14; 4G board 15; connector 16; nylon hose 17; probe 18; vibration reinforcement 19; action piece 20; hard body 21; flexible edge 22; flexible adhesive part 23; knocking hole 24; flexible metal wire 25; ascending section 26; bending section 27; descending section 28; knocking part 29; insulating plate 30; sensor body 31; insulating gasket 32; stop pad 33; insulating bolt 34. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0026] like Figure 1 To Figure 8 As shown, a multi-system integrated running gear monitoring system includes a running gear monitoring host 1, a preprocessor 2, a vehicle body vibration sensor 3, a frame vibration sensor 4, a gear box vibration sensor 5, an axle box composite sensor 6, a gear box composite sensor 7 and a motor composite sensor 8, the running gear monitoring host 1 is installed in a carriage screen cabinet, the preprocessor 2 and the vehicle body vibration sensor 3 are installed at the bottom of the vehicle body, the frame vibration sensor 4, the gear box vibration sensor 5, the axle box composite sensor 6, the gear box composite sensor 7 and the motor composite sensor 8 are installed on the bogie, the vehicle body vibration sensor 3 is connected to the running gear monitoring host 1 by CAN communication, the frame vibration sensor 4, the gear box vibration sensor 5, the axle box composite sensor 6, the gear box composite sensor 7 and the motor composite sensor 8 are installed The sensor 8 is connected to the preprocessor 2 via CAN communication, and the preprocessor 2 is connected to the running gear monitoring host 1 via Ethernet. The axle box composite sensor 6, the gear box composite sensor 7 and the motor composite sensor 8 include a connector 16, a nylon hose 17 and a probe 18. The nylon hose 17 connects the connector 16 and the probe 18. The probe 18 is provided with a vibration reinforcement member 19, and the vibration reinforcement member 19 includes an elastic support member and an action piece 20. The elastic support member includes a flexible adhesive portion 23, a support portion and a knocking portion 29. The flexible adhesive portion 23 is adhered to the side of the probe 18, and the support portion is arranged on the adhesive portion. The action piece 20 is arranged on the support portion, and the adhesive portion is provided with a knocking hole 24 corresponding to the knocking portion 29.

[0027] A multi-system integrated running gear monitoring system of the present embodiment integrates all functions of six major systems, namely, a running gear fault diagnosis system, a derailment detection system, a stability monitoring system, an instability detection system, an axle temperature alarm system and a vehicle dynamics analysis system, thereby reducing the installation space and reducing the cost while ensuring full functionality; the system layout is reasonable, and while ensuring the system functions, the signal transmission anti-interference ability from the sensor to the preprocessor 2 and from the preprocessor 2 to the host is stronger, and the accuracy of the detection data is higher; the vibration reinforcement member 19 provided therein can effectively enhance the vibration detection sensitivity of the composite sensor, and the vibration reinforcement member 19 is connected to the side of the probe 18, which is equivalent to forming a vibration reinforcement layer on the outer side of the probe 18. During the working process, when vibration occurs, the action piece 20 will vibrate because it is elastically supported, thereby driving the knocking part 29 to move, and the knocking part 29 knocks the knocking hole 24 during the movement to transmit the vibration to the probe 18, and the setting of the knocking hole 24 can reduce the sound generated during knocking, thereby avoiding excessive noise generation.

[0028] Specifically, the running gear monitoring host 1 includes a chassis and a power board 9, a speed board 10, a data acquisition board 11, an MVB board 12, a computer board 13, a stability monitoring board 14 and a 4G board 15 arranged in the chassis.

[0029] The probe 18 is provided with a DS18B20 digital temperature chip and piezoelectric ceramics, and its output signal is a voltage signal. The vibration signal is linearly related to the output voltage signal, and the vibration and temperature supply voltages are both DC12V.

[0030] During operation, the power board 9 converts the DC110V power provided by the vehicle into isolated DC12V to provide power for other boards.

[0031] The vehicle body vibration sensor 3, the frame vibration sensor 44, and the gearbox vibration sensor 55 use MEMS digital chips, and the sensors perform low-pass filtering, sampling, analog-to-digital conversion, and other functions on the sampled data.

[0032] The pre-processor 2 receives the real-time speed signal transmitted by the data acquisition board 11, and performs equal-angle sampling on the vibration impact signals transmitted by the axle box composite sensor 6, the gear box composite sensor 7 and the motor composite sensor 8.

[0033] The pre-processor 2 performs isochronous sampling on the temperature signals transmitted by the axle box composite sensor 6, the gear box composite sensor 7, and the motor composite sensor 8, and the sampling frequency can be set to a maximum of 10 Hz.

[0034] The pre-processor 2 converts all collected signals into Ethernet and sends them to the data acquisition board 11.

[0035] The data acquisition board 11 exchanges data with the computing board through the backplane. The data acquisition board 11 summarizes the data sent by the preprocessor 2 and sends it to the computing board. The data is analyzed and diagnosed through the built-in algorithm in the computing board. The diagnosis result is sent to the vehicle TCMS through the vehicle control Ethernet port in the computing board or the MVB board 12 to realize real-time diagnosis function.

[0036] The data acquisition board 11 exchanges data with the computing board through the backplane. The data acquisition board 11 summarizes the data sent by the preprocessor 2 and sends it to the computing board. The data is analyzed and diagnosed through the built-in algorithm in the computing board. The diagnosis result is sent to the vehicle TCMS through the vehicle control Ethernet port in the computing board or the MVB board 12 to realize real-time diagnosis function.

[0037] The data acquisition board 11 exchanges data with the computing board through the backplane. The data acquisition board 11 summarizes the data sent by the preprocessor 2 and sends it to the computing board. The data is analyzed and diagnosed through the built-in algorithm in the computing board. The diagnosis result is sent to the vehicle TCMS through the vehicle control Ethernet port in the computing board or the MVB board 12 to realize real-time diagnosis function.

[0038] The computing board integrates fault diagnosis algorithms, instability algorithms, and derailment algorithms, and can be configured with additional or reduced parameters based on demand.

[0039] The computing board has its own hard disk, which can store all the data transmitted by the preprocessor 2. Through the backplane interface, the data can be sent to the 4G board 15, and the data can be sent to the designated cloud server in real time via the 4G network, achieving the effect of remote real-time monitoring.

[0040] The computing board uses a built-in algorithm to diagnose whether the vehicle is derailed. The diagnosis result is sent to the derailment board through the backplane. The derailment signal is sent to the train emergency braking system (EB) and train control system (ATC) through a relay, thereby achieving the train derailment braking control effect.

[0041] Furthermore, the vehicle body vibration sensor 3 can be transmitted to the pre-processor 2 and then sent to the computing board through the data acquisition board 11, thereby reducing one stable detection board.

[0042] Furthermore, the body vibration sensor 3, the frame vibration sensor 4 and the gearbox vibration sensor 5 can adopt analog MEMS accelerometers, and the sensors send voltage signals to the preprocessor 2. The preprocessor 2 has a built-in low-pass filter and A / D collector, which converts the collected acceleration signals into Ethernet and sends them to the data acquisition board 11, thereby reducing costs.

[0043] Furthermore, the temperature parts of the axle box composite sensor 6, the gear box composite sensor 7 and the motor composite sensor 8 can use platinum resistor PT100 or PT1000, and the temperature signal is transmitted in the form of a voltage signal. An A / D collector is added to the preprocessor 2. This solution can improve the sampling frequency of the temperature signal and the accuracy of the temperature signal.

[0044] Specifically, the vehicle body vibration sensor 3, the gearbox vibration sensor 5 and the frame vibration sensor 4 include an insulating plate 30, a sensor body 31, an insulating gasket 32, a stop pad 33 and an insulating bolt 34. The sensor body 31 is configured as an acceleration sensor. A connecting screw hole is provided on the insulating plate 30. The insulating bolt 34 passes through the insulating gasket 32, the sensor body 31 and the stop pad 33 and then cooperates with the connecting screw hole.

[0045] Specifically, the support portion includes a support rod and a plurality of flexible metal wires 25, the bottom of the support rod is connected to the flexible adhesive portion 23, the flexible metal wire 25 includes a continuous ascending section 26, a bending section 27 and a descending section 28, the ascending section 26 is connected to the support rod, the action piece 20 is arranged on the bending section 27, and the lower end of the descending section 28 forms the knocking portion 29. Under such a structural setting, the support portion realizes elastic support for the action piece 20, and can produce a knocking effect under the drive of the action piece 20, and due to its structural setting, it has good supporting performance while ensuring the elastic support effect, avoiding displacement during the action process, thereby ensuring the regularity of vibration and the accuracy of sensor detection.

[0046] Specifically, the flexible adhesive sheet is made of rubber material. On the one hand, due to its flexible setting, it can adapt to the surface shape of the probe 18. On the other hand, it produces a good sound insulation effect to avoid excessive noise during the knocking process.

[0047] Specifically, the action piece 20 is set to be arched, and the vibration reinforcement member 19 is provided with a plurality of them, and the plurality of vibration reinforcement members 19 are arranged around the probe 18, and the action pieces 20 of the plurality of vibration reinforcement members 19 overlap each other to form an annular space together. When vibration occurs, the plurality of vibration reinforcement members 19 work simultaneously, which can effectively enhance the vibration enhancement effect. At the same time, due to the formation of the annular space, the vibration transmission effect can be more effectively enhanced.

[0048] Furthermore, the action piece 20 includes a hard body 21 and a flexible edge 22 provided at the edge of the hard body 21. The hard body 21 can make it have a certain mass to meet the force requirement required for knocking, and the setting of the flexible edge 22 makes it possible for multiple vibration reinforcement members 19 to not produce rigid collision with each other when in action, thereby effectively avoiding the generation of noise.

[0049] According to technical specifications and market demand, this system needs to realize six major fault detection functions, including track corrugation detection, vehicle wheel out-of-round detection (including wheel abrasion), axle box failure, gear box failure, motor failure, and vehicle derailment, and it is compatible with vehicle dynamics analysis function. Based on the above functions, the following data storage / collection logic is formulated:

[0050]

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "include..." or "comprise..." do not exclude the existence of other elements in the process, method, article or terminal device including the elements. In addition, in this article, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself.

[0052] The above description of the embodiments is to facilitate the understanding and use of the present invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to the embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. A multi-system integrated running gear monitoring system, characterized in that: It includes a running gear monitoring host, a preprocessor, a car body vibration sensor, a frame vibration sensor, a gear box vibration sensor, an axle box composite sensor, a gear box composite sensor and a motor composite sensor. The running gear monitoring host is installed in a carriage screen cabinet, the preprocessor and the car body vibration sensor are installed at the bottom of the car body, the frame vibration sensor, the gear box vibration sensor, the axle box composite sensor, the gear box composite sensor and the motor composite sensor are installed on the bogie, the car body vibration sensor is connected to the running gear monitoring host via CAN communication, the frame vibration sensor, the gear box vibration sensor, the axle box composite sensor, the gear box composite sensor and the motor composite sensor are connected to the preprocessor via CAN communication, the preprocessor is connected to the running gear monitoring host via Ethernet, and the axle box composite sensor The device, gearbox composite sensor and motor composite sensor include a connector, a nylon hose and a probe, the nylon hose connects the connector and the probe, the probe is provided with a vibration reinforcement, the vibration reinforcement includes an elastic support and an action sheet, the elastic support includes a flexible adhesive portion, a support portion and a knocking portion, the flexible adhesive portion is adhered to the side of the probe, the support portion is arranged on the adhesive portion, the action sheet is arranged on the support portion, the adhesive portion is provided with a knocking hole corresponding to the knocking portion, the support portion includes a support rod and a plurality of flexible metal wires, the bottom of the support rod is connected to the flexible adhesive portion, the flexible metal wire includes a continuous ascending section, a bending section and a descending section, the ascending section is connected to the support rod, the action sheet is arranged on the bending section, and the lower end of the descending section forms the knocking section.

2. According to the multi-system integrated running gear monitoring system of claim 1, it is characterized in that: The running gear monitoring host comprises a chassis and a power supply board, a rotation speed board, a data acquisition board, an MVB board, a computer board, a stability monitoring board and a 4G board arranged in the chassis.

3. According to the multi-system integrated running gear monitoring system of claim 1, it is characterized in that: The probe is provided with a DS18B20 digital temperature chip and piezoelectric ceramics.

4. According to the multi-system integrated running gear monitoring system of claim 1, it is characterized in that: The flexible adhesive sheet is made of rubber material.

5. According to the multi-system integrated running gear monitoring system of claim 1, it is characterized in that: The action piece is arranged in an arch shape, and a plurality of the vibration reinforcement members are provided. The plurality of the vibration reinforcement members are arranged around the probe, and the action pieces of the plurality of the vibration reinforcement members overlap with each other to form an annular space together.

6. According to claim 5, a multi-system integrated running gear monitoring system is characterized in that: The action piece includes a hard body and a flexible edge arranged on the edge of the hard body.

7. The multi-system integrated running gear monitoring system according to claim 1 is characterized in that: The vehicle body vibration sensor, gearbox vibration sensor and frame vibration sensor include an insulating plate, a sensor body, an insulating gasket, a stop pad and an insulating bolt. The sensor body is configured as an acceleration sensor. A connecting screw hole is provided on the insulating plate. The insulating bolt passes through the insulating gasket, the sensor body and the stop pad and then cooperates with the connecting screw hole.

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