An on-line monitoring system for the running gear applicable to a single-rail bogie

Abstract

The present invention provides a running gear on-line monitoring system applicable to a monorail bogie. The running gear on-line detection system correspondingly sets data acquisition components, temperature and vibration composite sensors, rotational speed sensors, and three-axis acceleration sensors on each component of the running gear, and combines an on-vehicle dynamic data processing terminal and a network monitoring host to accurately identify the real-time states of each component in real time, realizing dynamic on-line monitoring of the state of the running gear of the monorail bogie and providing guarantee for the operation safety of the straddle-type monorail train.

Description

Technical Field

[0001] The present invention relates to the technical field of rail trains, and more specifically, to a running gear on-line monitoring system applicable to a monorail bogie. Background Art

[0002] The straddle monorail was first developed by the German company ALWEG in 1952. It is supported, stabilized and guided by a single track beam, and the vehicle body runs straddling on the track beam. It is a unique urban rail transit system with medium passenger capacity and independent right of way.

[0003] Among them, the bogie is an important running gear for supporting the vehicle body, transmitting loads and guiding the vehicle to run along the track. The key components of the running gear mainly include running wheel bearings, horizontal wheel bearings, gearbox bearings, electrode bearings and transmission gears, etc. These components are not easy to observe and are moving parts, and their working states will directly affect the driving safety.

[0004] Therefore, how to effectively realize the on-line monitoring of the running gear of the monorail bogie is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] In view of this, to solve the above problems, the present invention provides a running gear on-line monitoring system applicable to a monorail bogie, and the technical solution is as follows:

[0006] A running gear on-line monitoring system applicable to a monorail bogie, the monorail train includes multiple carriages, and bogies are respectively arranged at both ends of each carriage. Two running wheels and six horizontal wheels are arranged on each bogie;

[0007] The running gear on-line monitoring system includes:

[0008] Data acquisition components respectively installed on both sides of the bogie in the first direction;

[0009] Temperature and vibration composite sensors installed on each running wheel and each horizontal wheel;

[0010] Rotation speed sensors installed on each running wheel;

[0011] Three-axis acceleration sensors installed on the bogie;

[0012] An on-vehicle dynamic data processing terminal and a network monitoring host installed in the head of the monorail train;

[0013] Among them, the data acquisition component is used to collect the vibration parameters and temperature parameters of the walking wheels and the horizontal wheels through the temperature-vibration composite sensor, collect the rotational speed parameters of the walking wheels through the rotational speed sensor, collect the acceleration parameters of the bogie through the triaxial acceleration sensor, and upload the collected data to the on-vehicle dynamic data processing terminal;

[0014] The on-vehicle dynamic data processing terminal is used to process the data uploaded by the data acquisition component and upload the processing result to the network monitoring host for online monitoring of the running gear.

[0015] Preferably, in the above-mentioned online monitoring system of the running gear, the on-vehicle dynamic data processing terminal is also used to upload the processing result to the backend server.

[0016] Preferably, in the above-mentioned online monitoring system of the running gear, the data transmission mode between the data acquisition component and the on-vehicle dynamic data processing terminal is Ethernet transmission or bus communication transmission.

[0017] Preferably, in the above-mentioned online monitoring system of the running gear, the data acquisition component is hoisted on the C-shaped groove under the carriage floor by a T-shaped bolt through an L-shaped mounting bracket.

[0018] Preferably, in the above-mentioned online monitoring system of the running gear, two adjacent temperature-vibration composite sensors share one wire harness.

[0019] Preferably, in the above-mentioned online monitoring system of the running gear, the wire harness is connected to the data acquisition component through a 10Pin aviation connector.

[0020] Preferably, in the above-mentioned online monitoring system of the running gear, the temperature-vibration composite sensor installed on the walking wheel is clamped on the hollow axle of the walking wheel by two semi-circular aluminum alloy structural parts.

[0021] Preferably, in the above-mentioned online monitoring system of the running gear, the temperature-vibration composite sensor installed on the horizontal wheel is fixed on the vertical axle of the horizontal wheel by two horizontal wheel mounting bolts.

[0022] Preferably, in the above-mentioned online monitoring system of the running gear, two stop seats are provided on the mounting bracket of the vertical axle of the horizontal wheel, and the stop seats are used to restrict the vertical movement and longitudinal movement of the horizontal wheel.

[0023] Preferably, in the above-mentioned online monitoring system of the running gear, a cover plate is installed on the stop seat, and the cover plate is used to restrict the lateral movement of the horizontal wheel.

[0024] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0025] The present invention provides a running gear online monitoring system applicable to a monorail bogie. The monorail train includes multiple carriages, and bogies are respectively arranged at both ends of each carriage. Two running wheels and six horizontal wheels are arranged on each bogie. The running gear online monitoring system includes: data acquisition components respectively installed on both sides of the bogie in the first direction; temperature and vibration composite sensors installed on each running wheel and each horizontal wheel; rotational speed sensors installed on each running wheel; triaxial acceleration sensors installed on the bogie; an on-vehicle dynamic data processing terminal and a network monitoring host installed in the head of the monorail train. Wherein, the data acquisition components are used to collect vibration parameters and temperature parameters of the running wheels and the horizontal wheels through the temperature and vibration composite sensors, collect rotational speed parameters of the running wheels through the rotational speed sensors, collect acceleration parameters of the bogie through the triaxial acceleration sensors, and upload the collected data to the on-vehicle dynamic data processing terminal; the on-vehicle dynamic data processing terminal is used to process the data uploaded by the data acquisition components and upload the processing results to the network monitoring host for online monitoring of the running gear.

[0026] By correspondingly arranging data acquisition components, temperature and vibration composite sensors, rotational speed sensors and triaxial acceleration sensors on each component of the running gear, and combining the on-vehicle dynamic data processing terminal and the network monitoring host, the running gear online detection system can accurately identify the real-time status of each component in real time, realizing dynamic online monitoring of the running gear status of the monorail bogie and providing guarantee for the operation safety of the straddle monorail train. Brief Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0028] Figure 1 It is a schematic diagram of the external structure of a monorail train provided by an embodiment of the present invention;

[0029] Figure 2 It is a schematic diagram of the principle structure of a running gear online monitoring system applicable to a monorail bogie provided by an embodiment of the present invention;

[0030] Figure 3 It is a schematic diagram of the configuration principle of a running gear online monitoring system applicable to a monorail bogie provided by an embodiment of the present invention;

[0031] Figure 4Schematic top view structure of a bogie provided by an embodiment of the present invention;

[0032] Figure 5 Schematic installation structure diagram between a running wheel and a sensor provided by an embodiment of the present invention;

[0033] Figure 6 Schematic installation structure diagram between a horizontal wheel and a sensor provided by an embodiment of the present invention;

[0034] Figure 7 Schematic structure diagram of a mounting bracket for a vertical axle of a horizontal wheel provided by an embodiment of the present invention. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

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

[0037] Refer to Figure 1 , Figure 1 which is a schematic external structure diagram of a monorail train provided by an embodiment of the present invention. For illustration purposes, it is assumed that the monorail train has four carriages. Bogies are respectively arranged at the front and rear ends of each carriage. That is, two bogies are arranged on one carriage. Two running wheels and six horizontal wheels are arranged on each bogie. That is, four running wheels and twelve horizontal wheels are equipped on one carriage. Figure 1

[0038] Refer to Figure 2 , Figure 2 which is a schematic principle structure diagram of a running gear on-line monitoring system applicable to a monorail bogie; Refer to Figure 3 , Figure 3 which is a schematic configuration principle diagram of a running gear on-line monitoring system applicable to a monorail bogie provided by an embodiment of the present invention.

[0039] The running gear on-line monitoring system applicable to a monorail bogie includes:

[0040] Data acquisition components respectively installed on both sides of the bogie in the first direction; that is, one data acquisition component is installed on each of the left and right sides of each bogie. That is, four data acquisition components are installed on each carriage, that is Figure 2 ​The four data acquisition components shown in

[0041] Thermal and vibration composite sensors installed on each of the walking wheels and each of the horizontal wheels; that is, sixteen thermal and vibration composite sensors are configured and installed in each carriage, namely, Figure 2 The twelve horizontal wheel thermal and vibration composite sensors and the four walking wheel thermal and vibration composite sensors shown in

[0042] Rotation speed sensors installed on each of the walking wheels; that is, four rotation speed sensors are configured and installed in each carriage, namely, Figure 2 The four walking wheel rotation speed sensors shown in

[0043] Triaxial acceleration sensors installed on the bogie; that is, two triaxial acceleration sensors are configured and installed in each carriage, and one triaxial acceleration sensor is configured and installed on each bogie.

[0044] On-vehicle dynamic data processing terminals and network monitoring hosts installed inside the head of the monorail train;

[0045] Among them, the data acquisition components are used to collect the vibration parameters and temperature parameters of the walking wheels and the horizontal wheels through the thermal and vibration composite sensors, collect the rotation speed parameters of the walking wheels through the rotation speed sensors, collect the acceleration parameters of the bogie through the triaxial acceleration sensors, and upload the collected data to the on-vehicle dynamic data processing terminal.

[0046] The on-vehicle dynamic data processing terminal is used to process the data uploaded by the data acquisition components, and upload the processing results to the network monitoring host for on-line monitoring of the running part.

[0047] Specifically, in the embodiment of the present invention, the data collected by each sensor is collected in real time and at high speed by the data acquisition components, pre-processed and then uploaded to the on-vehicle dynamic data processing terminal. The on-vehicle dynamic data processing terminal performs fault model analysis and arithmetic processing, accurately identifies the running states of each component in real time, makes early warnings and hierarchical warnings, etc., and uploads the processing results to the network monitoring host TCMS for alarm prompts, realizing the dynamic on-line monitoring of the running part state of the monorail bogie, and providing guarantee for the operation safety of the straddle-type monorail train.

[0048] Optionally, in another embodiment of the present invention, as Figure 2 shown, the data transmission mode between the data acquisition components and the on-vehicle dynamic data processing terminal is Ethernet transmission or bus communication transmission.

[0049] It should be noted that the data transmission method between the data acquisition component and the vehicle-mounted dynamic data processing terminal can also be other types of data transmission methods. In the embodiments of the present invention, only Ethernet transmission or bus communication transmission is described as the optimal embodiment.

[0050] Optionally, in another embodiment of the present invention, the vehicle-mounted dynamic data processing terminal is further configured to upload the processing result to the backend server.

[0051] Specifically, in the embodiments of the present invention, the vehicle-mounted dynamic data processing terminal is further configured to upload the processing result to the ground backend server, where big data operation and analysis are performed, the health status of the vehicle running gear is intelligently identified, and a trend warning determination is made.

[0052] That is to say, based on the fault diagnosis technology of generalized resonance and resonance demodulation, the running gear online monitoring system applicable to the monorail bogie provided by the embodiments of the present invention simultaneously monitors three physical quantities of impact, vibration, and temperature of the bearing through the temperature-vibration composite sensor installed at the key positions of the running gear, realizes early warning and graded alarm for bearing faults, accurately guides the operation and maintenance of the vehicle, and the results can be displayed in the driver's cab at the front of the vehicle (i.e., displayed through the network monitoring display), or the alarm information can be sent to the server and the client through the vehicle control system, and the bearing temperature and vibration data can be stored. These data can be downloaded through the maintenance software for relevant analysis to ensure driving safety.

[0053] That is to say, the running gear online monitoring system applicable to the monorail bogie provides all-round safety monitoring, status assessment, fault warning, maintenance guidance, health management services and support for the dynamic state of the vehicle running gear and the wheel-rail through multi-physical quantity (impact, vibration, temperature) perception, and the use of advanced technologies such as intelligent monitoring, intelligent analysis systems, and big data processing, reduces the maintenance workload and cost of the straddle-type monorail vehicle, improves the vehicle operation efficiency, and has important economic and social benefits.

[0054] The running gear online monitoring system applicable to the monorail bogie can meet the requirements of large capacity, high transmission speed, and reliability analysis, so as to realize the online status monitoring of the running gear of the straddle-type monorail train, greatly improve the active safety and emergency response capabilities of the straddle-type monorail train, and play a major role in ensuring the safe operation of urban rail transit vehicles, providing guarantee for the operation safety of the straddle-type monorail train.

[0055] Among them, the communication method between the vehicle-mounted dynamic data processing terminal and the backend server includes but is not limited to data transmission by means of 4G or 5G network communication.

[0056] Optionally, in another embodiment of the present invention, refer to Figure 4 ,Figure 4 A schematic top view of the structure of a bogie provided in an embodiment of the present invention.

[0057] The data acquisition assembly is suspended on the C-shaped groove under the carriage floor by T-shaped bolts through an L-shaped mounting bracket.

[0058] Two adjacent temperature-vibration composite sensors share a wiring harness.

[0059] The wiring harness and the data acquisition component are connected via a 10-pin aviation connector.

[0060] Specifically, in the embodiment of the present invention, due to the special operating environment of the straddle-type monorail vehicle and the fact that the wheels are rubber pneumatic tires, the up and down amplitude is large during operation, and the amplitude change is greatly affected by the rail surface, tire pressure, and tire temperature. It is necessary to overcome the irregular amplitude interference of the bogie itself, and to meet the accuracy of data collection under time-varying conditions. In addition, due to the large difference between the structure of the monorail bogie and the wheel-rail train, the outer ring of the bearing (wheel core) is transported with the wheel, etc., in the embodiment of the present invention, the installation of each component is also adaptively improved.

[0061] Among them, the vehicle-mounted dynamic data processing terminal is installed in the seat of the front passenger compartment, fixed on the vehicle floor through a mounting bracket, and close to the vehicle's network monitoring host TCMS. It is mainly responsible for processing, collecting, diagnosing and storing data transmitted by the front-end data acquisition components. It has built-in online fault diagnosis intelligent system software, which can automatically diagnose in real time online and give diagnostic results in real time.

[0062] Each carriage is equipped with four data acquisition components. One data acquisition component is installed on the left and right sides of each bogie in each carriage. The data acquisition components are hoisted on the C-shaped slot under the vehicle floor by T-shaped bolts through L-shaped mounting brackets. The front-end data acquisition component realizes the sensor ID configuration management of the measurement points under its jurisdiction, collects and pre-processes the signals of each sensor in real time, and transmits data at high speed with the on-board dynamic data processing terminal through Ethernet or bus communication.

[0063] like Figure 4 The figure mainly reflects the wiring diagram of a data acquisition instrument and a temperature-vibration composite sensor on a bogie. Each temperature-vibration composite sensor is laid with a set of 5×0.5mm 2 The shielded wire of the two temperature-vibration composite sensors is combined into a wiring harness composed of a bellows and a tee, and connected to the corresponding data acquisition components by a 10-pin aviation connector.

[0064] Optionally, in another embodiment of the present invention, refer to Figure 5 , Figure 5 A schematic diagram of the installation structure between a traveling wheel and a sensor provided in an embodiment of the present invention.

[0065] The temperature and vibration composite sensor installed on the traveling wheel is held by two semi-circular aluminum alloy structural parts around the hollow axle of the traveling wheel.

[0066] Specifically, in the embodiment of the present invention, the temperature and vibration composite sensor installed on the running wheel is held by two semi-circular aluminum alloy structural parts around the hollow axle of the running wheel, fixed by four sets of bolt assemblies, and the temperature and vibration composite sensor is closely attached to the hollow axle of the running wheel to measure three physical quantities of axle impact, vibration, and temperature in real time. The front-end data acquisition component is connected to the temperature and vibration composite sensor by a wired method to collect the measurement signals of the temperature and vibration composite sensor in real time at high speed.

[0067] Optionally, in another embodiment of the present invention, refer to Figure 6 , Figure 6 which is a schematic diagram of the installation structure between a horizontal wheel and a sensor provided by the embodiment of the present invention.

[0068] The temperature and vibration composite sensor installed on the horizontal wheel is fixed to the vertical axle of the horizontal wheel by two horizontal wheel mounting bolts.

[0069] Refer to Figure 7 , Figure 7 which is a schematic diagram of the structure of the mounting bracket for the vertical axle of a horizontal wheel provided by the embodiment of the present invention. Two stop seats are provided on the mounting bracket for the vertical axle of the horizontal wheel, and the stop seats are used to restrict the vertical movement and longitudinal movement of the horizontal wheel.

[0070] A cover plate installed on the stop seat, and the cover plate is used to restrict the lateral movement of the horizontal wheel.

[0071] Specifically, in the embodiment of the present invention, the temperature and vibration composite sensor is composed of a flat bracket and a sensor, and is directly fixed to the vertical axle of the horizontal wheel by two horizontal wheel mounting bolts. The temperature and vibration composite sensor is closely attached to the vertical axle of the horizontal wheel to measure three physical quantities of axle impact, vibration, and temperature in real time. The front-end data acquisition component is connected to the temperature and vibration composite sensor by a wired method to collect the measurement signals of the temperature and vibration composite sensor in real time at high speed.

[0072] Furthermore, as shown in Figure 7 , due to the special structure of the vertical axle and the need to bear large bending moments and torques during turning, in order to ensure the safety of the horizontal wheel, two stop seats are welded on the mounting bracket to restrict the vertical and longitudinal movement of the horizontal wheel, and a cover plate is installed on the stop seat to restrict the lateral movement of the horizontal wheel, thereby improving the reliability of the installation of the horizontal wheel.

[0073] As can be seen from the above description, the present invention provides an on-line monitoring system for the running gear applicable to a monorail bogie. In view of the special structure of the monorail bogie, a hoop-type running wheel temperature and vibration composite sensor installation structure and a vertical axle horizontal wheel temperature and vibration composite sensor installation structure are also designed, which can better adapt to the structural characteristics of monorail vehicles and improve the driving safety.

[0074] The above has introduced in detail an on-line monitoring system for the running gear applicable to a monorail bogie provided by the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation on the present invention.

[0075] It should be noted that each embodiment in this specification is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0076] It also should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements inherent to the process, method, article or device, but also other identical elements inherent to these process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

[0077] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An on-line monitoring system for the running gear applicable to a single-rail bogie, characterized in that The monorail train includes multiple carriages, and bogies are respectively arranged at both ends of each carriage. Two running wheels and six horizontal wheels are arranged on each bogie. The on-line monitoring system for the running gear includes: Data acquisition components respectively installed on both sides of the bogie in the first direction; Temperature and vibration composite sensors installed on each running wheel and each horizontal wheel. Among them, the temperature and vibration composite sensor installed on the running wheel is clamped on the hollow axle of the running wheel by two semi-circular aluminum alloy structural parts; the temperature and vibration composite sensor installed on the horizontal wheel is fixed on the vertical axle of the horizontal wheel by two horizontal wheel mounting bolts; Rotation speed sensors installed on each running wheel; Triaxial acceleration sensors installed on the bogie; An on-vehicle dynamic data processing terminal and a network monitoring host installed in the head of the monorail train; Among them, the data acquisition component is used to collect the vibration parameters and temperature parameters of the running wheel and the horizontal wheel through the temperature and vibration composite sensor, collect the rotation speed parameters of the running wheel through the rotation speed sensor, collect the acceleration parameters of the bogie through the triaxial acceleration sensor, and upload the collected data to the on-vehicle dynamic data processing terminal; The on-vehicle dynamic data processing terminal is used to process the data uploaded by the data acquisition component, and upload the processing result to the network monitoring host for on-line monitoring of the running gear.

2. The on-line monitoring system for the running gear according to claim 1, wherein The on-vehicle dynamic data processing terminal is also used to upload the processing result to the back-end server.

3. The on-line monitoring system for the running gear according to claim 1, characterized in that, The data transmission mode between the data acquisition component and the on-vehicle dynamic data processing terminal is Ethernet transmission or bus communication transmission.

4. The on-line monitoring system for the running gear according to claim 1, characterized in that, The data acquisition component is hoisted on the C-shaped groove under the carriage floor by a T-shaped bolt through an L-shaped mounting bracket.

5. The on-line monitoring system for the running gear according to claim 1, characterized in that, Adjacent two temperature and vibration composite sensors share a wiring harness.

6. The on-line monitoring system for the running gear according to claim 5, characterized in that The wiring harness is connected to the data acquisition component through a 10Pin aviation connector.

7. The on-line monitoring system for the running gear according to claim 1, characterized in that Two stop seats are arranged on the mounting bracket of the vertical axle of the horizontal wheel, and the stop seats are used to restrict the vertical movement and longitudinal movement of the horizontal wheel.

8. The on-line monitoring system for the running gear according to claim 7, characterized in that, A cover plate installed on the stop seat, and the cover plate is used to restrict the lateral movement of the horizontal wheel.

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