Intermediate gear box on-line monitoring device of new energy locomotive
By designing bearing and lubricating oil condition monitoring mechanisms in new energy locomotives and transmitting data to the central control room in real time, the problem of insufficient timeliness of traditional judgment methods has been solved, and the operational safety and monitoring convenience of intermediate gearboxes have been improved.
Patent Information
- Application Number
- CN202520260943.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-19
AI Technical Summary
Traditional methods for judging the operating status of intermediate gearboxes rely on manual hearing or checking the lubricating oil status after shutdown, which makes it difficult to monitor in real time during locomotive operation, leading to potential safety hazards.
Design an online monitoring device for the intermediate gearbox of a new energy locomotive, including a bearing condition monitoring mechanism and a lubricating oil condition monitoring mechanism. The monitoring data is transmitted to the central control room through a junction box to realize real-time data display and fault early warning.
It enables real-time monitoring of the intermediate gearbox, improves operational safety, reduces the risk of locomotive downtime accidents, and provides comprehensive monitoring data while being easy to operate.
Smart Images
Figure CN223870300U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gearbox monitoring technology for new energy locomotives, and in particular to an online monitoring device for the intermediate gearbox of a new energy locomotive. Background Technology
[0002] The intermediate gearbox is a power conversion device in new energy locomotives. Its input end is connected to the traction motor, and its output end is connected to the two-wheel drive device. The operation of the intermediate gearbox is directly related to the safety of the entire vehicle's power system.
[0003] In traditional technology, the operation of intermediate gearboxes is often assessed using the following two methods:
[0004] 1. Judging based on the sounds during operation requires a high level of technical skill from locomotive maintenance personnel.
[0005] 2. Judging based on the lubricating oil status (oil level, oil pressure, oil temperature) after shutdown is not timely and cannot be judged during locomotive operation. If abnormal bearing temperature or abnormal lubricating oil pressure occurs in the intermediate gearbox during locomotive operation, locomotive maintenance personnel may not easily detect it, which may cause serious accidents such as locomotive shutdown.
[0006] The above-mentioned judgment method is relatively traditional and has obvious shortcomings, so it is necessary to improve it. Utility Model Content
[0007] In view of the above situation, this utility model provides an online monitoring device for the intermediate gearbox of a new energy locomotive, which aims to solve the defects of the traditional judgment method mentioned in the background art.
[0008] To achieve the above objectives, this utility model provides the following technical solution:
[0009] This utility model provides an online monitoring device for the intermediate gearbox of a new energy locomotive, comprising:
[0010] A bearing condition monitoring mechanism is used to monitor the temperature of each bearing in the intermediate gearbox;
[0011] A lubricating oil condition monitoring mechanism is used to monitor one or more of the following: oil pressure, temperature, and level of the lubricating oil in the intermediate gearbox.
[0012] The junction box is communicatively connected to the bearing condition monitoring mechanism and the lubricating oil condition monitoring mechanism.
[0013] The central control room of a new energy locomotive;
[0014] The bearing condition monitoring mechanism and the lubricating oil condition monitoring mechanism collect the corresponding monitoring data to the junction box, and the junction box transmits the monitoring data to the central control room.
[0015] In some embodiments of this utility model, the junction box is connected to the bearing condition monitoring mechanism, the lubricating oil condition monitoring mechanism, and the central control room via signal lines.
[0016] In some embodiments of this utility model, the intermediate gearbox includes: input shaft bearing one, input shaft bearing two, output shaft bearing one, output shaft bearing two, output shaft bearing three, and output shaft bearing four;
[0017] The intermediate gearbox also includes a lubricating oil tank, a lubricating oil passage one, and a lubricating oil passage two, wherein the lubricating oil passage one and the lubricating oil passage two are connected to the lubricating oil tank to form a lubricating oil circulation path.
[0018] In some embodiments of this utility model, the bearing condition monitoring mechanism includes one or more of the following: input bearing temperature sensor 1, input bearing temperature sensor 2, output shaft temperature sensor 1, output shaft temperature sensor 2, output shaft temperature sensor 3, and output shaft temperature sensor 4.
[0019] The input bearing temperature sensor 1, input bearing temperature sensor 2, output shaft temperature sensor 1, output shaft temperature sensor 2, output shaft temperature sensor 3, and output shaft temperature sensor 4 are respectively used to monitor the temperature of the input shaft bearing 1, input shaft bearing 2, output shaft bearing 1, output shaft bearing 2, output shaft bearing 3, and output shaft bearing 4.
[0020] In some embodiments of this utility model, each temperature sensor included in the bearing condition monitoring mechanism is in contact with the bearing mounting base of each bearing in the intermediate gearbox.
[0021] In some embodiments of this utility model, the lubricating oil condition monitoring mechanism includes one or more of a temperature level sensor, an oil pressure sensor one, and an oil pressure sensor two;
[0022] The temperature and level sensor is used to monitor the level and temperature of the lubricating oil in the lubricating oil tank;
[0023] The oil pressure sensor one and oil pressure sensor two are used to monitor the oil pressure of the lubrication oil circuit one and lubrication oil circuit two, respectively.
[0024] In some embodiments of this utility model, the oil pressure sensor is installed at the end of the lubrication oil circuit.
[0025] In some embodiments of this utility model, the second oil pressure sensor is installed at the end of the second lubrication oil circuit.
[0026] The embodiments of this utility model have at least the following advantages or beneficial effects:
[0027] The bearing condition monitoring mechanism and the lubricating oil condition monitoring mechanism collect the relevant monitoring data to the junction box. The junction box transmits the monitoring data to the central control room for intuitive and real-time display, facilitating maintenance personnel or drivers to judge the operating status of the intermediate gearbox when the locomotive is running or stopped, so as to provide early warning of intermediate gearbox failures and ensure driving safety. The online monitoring device for the intermediate gearbox of new energy locomotives provides comprehensive monitoring data, has simple wiring, and is intuitive and convenient to use.
[0028] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the structure of the online monitoring device for the intermediate gearbox of a new energy locomotive. Detailed Implementation
[0030] The present invention will be further described in detail below through specific embodiments:
[0031] Example
[0032] In the first aspect, this embodiment introduces an intermediate gearbox (prior art), which has an input shaft and an output shaft.
[0033] The input shaft is connected to input shaft bearing one and input shaft bearing two; the output shaft is connected to output shaft bearing one, output shaft bearing two, output shaft bearing three, and output shaft bearing four. All of the above bearings are mounted via bearing mounting brackets.
[0034] The intermediate gearbox also includes a lubricating oil tank, lubricating oil passage one, and lubricating oil passage two. Lubricating oil passage one and lubricating oil passage two are connected to the lubricating oil tank to form a lubricating oil circulation path.
[0035] Secondly, see Figure 1 This embodiment provides an online monitoring device for the intermediate gearbox of a new energy locomotive, used to monitor the operating status of the intermediate gearbox; the online monitoring device for the intermediate gearbox of the new energy locomotive includes a bearing condition monitoring mechanism, a lubricating oil condition monitoring mechanism, a junction box, and a central control room.
[0036] The bearing condition monitoring mechanism is used to monitor the temperature of the aforementioned bearings in the intermediate gearbox.
[0037] The lubricating oil condition monitoring mechanism is used to monitor one or more of the following: oil pressure, temperature, and level of the lubricating oil. In this embodiment, the lubricating oil condition monitoring mechanism is used to monitor the oil pressure, temperature, and level of the lubricating oil.
[0038] The junction box is connected to the bearing condition monitoring mechanism and the lubricating oil condition monitoring mechanism via signal lines. The bearing condition monitoring mechanism and the lubricating oil condition monitoring mechanism will summarize the corresponding monitoring data to the junction box.
[0039] The central control room is an existing component of the new energy locomotive. The junction box is connected to the central control room via signal lines to transmit the monitoring data to the central control room of the new energy locomotive for intuitive and real-time display. This allows maintenance personnel or drivers to judge the operating status of the intermediate gearbox when the locomotive is running or stopped, so as to provide early warning of intermediate gearbox failures and ensure driving safety.
[0040] As can be seen from the above, the online monitoring device for the intermediate gearbox of new energy locomotives provides comprehensive monitoring data, has simple wiring, and is intuitive and convenient to use.
[0041] The bearing condition monitoring mechanism includes four temperature sensors (Input Bearing Temperature Sensor 1, Input Bearing Temperature Sensor 2, Output Bearing Temperature Sensor 1, Output Bearing Temperature Sensor 2, Output Bearing Temperature Sensor 3, and Output Bearing Temperature Sensor 4) for monitoring the temperature of input shaft bearing 1, input shaft bearing 2, output shaft bearing 1, output shaft bearing 2, output shaft bearing 3, and output shaft bearing 4, respectively. Each temperature sensor in the bearing condition monitoring mechanism is installed at the bearing mounting base of each bearing in the intermediate gearbox, making contact with the bearing mounting base. This contact-type temperature measurement provides high detection efficiency, allowing for rapid detection of any abnormal rise in bearing temperature.
[0042] In a specific implementation scenario, the bearing condition monitoring mechanism may include one or more of the following: input bearing temperature sensor 1, input bearing temperature sensor 2, output shaft temperature sensor 1, output shaft temperature sensor 2, output shaft temperature sensor 3, and output shaft temperature sensor 4.
[0043] The lubricating oil condition monitoring mechanism includes a temperature and level sensor for monitoring the level and temperature of the lubricating oil in the lubricating oil tank, and oil pressure sensor 1 and oil pressure sensor 2 for monitoring the oil pressure in lubricating oil circuit 1 and lubricating oil circuit 2, respectively. The temperature and level sensor is installed in the lubricating oil tank. Oil pressure sensor 1 and oil pressure sensor 2 are installed at the end of lubricating oil circuit 1 and the end of lubricating oil circuit 2, respectively, and the overall unobstructedness of each lubricating oil circuit can be determined based on the oil pressure.
[0044] In a specific implementation scenario, the lubricating oil condition monitoring mechanism may include one or more of the following: temperature and level sensor, oil pressure sensor 1, and oil pressure sensor 2.
[0045] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. For those skilled in the art, this utility model can have various modifications and variations. Without conflict, the embodiments and features described in this application can be arbitrarily combined with each other. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An online monitoring device for the intermediate gearbox of a new energy locomotive, used to monitor the operating status of the intermediate gearbox, characterized in that, The online monitoring device for the intermediate gearbox of the new energy locomotive includes: A bearing condition monitoring mechanism is used to monitor the temperature of each bearing in the intermediate gearbox; A lubricating oil condition monitoring mechanism is used to monitor one or more of the following: oil pressure, temperature, and level of the lubricating oil in the intermediate gearbox. The junction box is communicatively connected to the bearing condition monitoring mechanism and the lubricating oil condition monitoring mechanism. The central control room of a new energy locomotive; The bearing condition monitoring mechanism and the lubricating oil condition monitoring mechanism collect the corresponding monitoring data to the junction box, and the junction box transmits the monitoring data to the central control room.
2. The online monitoring device for the intermediate gearbox of a new energy locomotive according to claim 1, characterized in that, The junction box is connected to the bearing condition monitoring mechanism, the lubricating oil condition monitoring mechanism, and the central control room via signal lines.
3. The online monitoring device for the intermediate gearbox of a new energy locomotive according to claim 1, characterized in that, The intermediate gearbox includes: input shaft bearing 1, input shaft bearing 2, output shaft bearing 1, output shaft bearing 2, output shaft bearing 3, and output shaft bearing 4; The intermediate gearbox also includes a lubricating oil tank, a lubricating oil passage one, and a lubricating oil passage two, wherein the lubricating oil passage one and the lubricating oil passage two are connected to the lubricating oil tank to form a lubricating oil circulation path.
4. The online monitoring device for the intermediate gearbox of a new energy locomotive according to claim 3, characterized in that, The bearing condition monitoring mechanism includes one or more of the following: input bearing temperature sensor 1, input bearing temperature sensor 2, output shaft temperature sensor 1, output shaft temperature sensor 2, output shaft temperature sensor 3, and output shaft temperature sensor 4. The input bearing temperature sensor 1, input bearing temperature sensor 2, output shaft temperature sensor 1, output shaft temperature sensor 2, output shaft temperature sensor 3, and output shaft temperature sensor 4 are respectively used to monitor the temperature of the input shaft bearing 1, input shaft bearing 2, output shaft bearing 1, output shaft bearing 2, output shaft bearing 3, and output shaft bearing 4.
5. The online monitoring device for the intermediate gearbox of a new energy locomotive according to claim 4, characterized in that, The temperature sensors included in the bearing condition monitoring mechanism are in contact with the bearing mounting seats of each bearing in the intermediate gearbox.
6. The online monitoring device for the intermediate gearbox of a new energy locomotive according to any one of claims 3 to 5, characterized in that, The lubricating oil condition monitoring mechanism includes one or more of the following: temperature and level sensor, oil pressure sensor one, and oil pressure sensor two. The temperature and level sensor is used to monitor the level and temperature of the lubricating oil in the lubricating oil tank; The oil pressure sensor one and oil pressure sensor two are used to monitor the oil pressure of the lubrication oil circuit one and lubrication oil circuit two, respectively.
7. The online monitoring device for the intermediate gearbox of a new energy locomotive according to claim 6, characterized in that, The oil pressure sensor is installed at the end of the lubrication oil circuit.
8. The online monitoring device for the intermediate gearbox of a new energy locomotive according to claim 6, characterized in that, The second oil pressure sensor is installed at the end of the second lubrication oil circuit.