Discussion on the information management system of

Discussion on modern locomotive maintenance information management system

Abstract: Based on the local area that has been built in the locomotive depot and further improved, a set of modern locomotive maintenance information management system is studied and designed from the perspective of resource and information sharing of the whole depot, and a unified database is established to provide information services for locomotive maintenance, so as to improve the quality of locomotive maintenance and the level of maintenance management

key words: Discussion on locomotive maintenance information system of diesel locomotive

1 preface

with the promotion of locomotive maintenance reform, the gradual establishment and improvement of maintenance and inspection separation. In order to ensure the success of maintenance reform and the smooth implementation of maintenance and inspection separation, it is imperative to develop a modern locomotive maintenance information management system to steadily improve the quality of locomotive maintenance, The modern locomotive maintenance information management system is to further improve the network on the basis of the existing computer local area network in the locomotive depot. On the premise of resource and information sharing, it establishes various databases, such as the engine system-6 database, the engine System-28 database, the service life management database of locomotive parts, and the analysis and management database of locomotive oil-water test data. Effectively manage them, record the basic technical status and application technical status of each locomotive from time to time, provide accurate data and valuable reference for the maintenance management personnel to accurately grasp the technical status of the locomotive, and provide accurate data and valuable reference for the technical department to prepare the medium, small and auxiliary plans of the locomotive and the inspection and repair of the locomotive, so as to reduce the occurrence of locomotive faults and improve the overall planned preventive maintenance ability and maintenance management level of the locomotive, Make the maintenance management work leap to a new level

2 composition scheme of locomotive maintenance information management system

the following takes the actual situation of the locomotive depot as an example to illustrate the determination of the composition scheme of the locomotive maintenance management system

2.1 composition structure of locomotive maintenance

the locomotive maintenance production organization structure of the locomotive depot is shown in the figure below

production organization structure diagram of the locomotive depot

2.2 hardware scheme

the determination of the hardware scheme should be combined with the actual production situation of the locomotive depot. The locomotive depot is basically divided into three parts: Operation workshop, maintenance workshop and stock room. The production is mainly based on the operation and maintenance of two high-precision rooms, while the stock room is mainly based on management. Several departments are relatively centralized and interrelated. In addition to the geographical distribution characteristics of the locomotive depot, the computer network hardware composition scheme must adapt to it. Combined with the current development level of computer network hardware technology, the following hardware scheme is proposed

composition scheme of computer network hardware in locomotive depot

2.3 network structure

the system adopts fast switching Ethernet structure. The switch has 100m and 10m ports, which are connected by optical cables to form a 100m backbone; Each server is connected with 100m broadband. Each workstation is connected to the switch with category 5 double glue wire through 10m port, and the workstation port can be expanded through cascade switch or hub. The three parts of operation, maintenance and Network Center (unit room) constitute three sub parts, and the two sub parts of operation and maintenance are mainly local data exchange; The management sub has more data exchange with others

the hardware layout of the system is distributed. The servers of operation, maintenance and network center are located in one place respectively, and they are locally connected with the workstation through the switch. Considering the workload of the server, one server is set for the operation sub, two servers are set for the maintenance sub and two servers are set for the network center. These servers mainly complete the management of database and are the core of production network

the whole network router is connected to the X.25 railway public data exchange to realize the connection with the Railway Bureau, further expand the scope of data sharing, so that the superior competent department can timely and accurately understand the locomotive maintenance after the locomotive depot activities, and also provide accurate information for the superior department to formulate relevant measures in time to improve the locomotive quality

3 establishment of database

3.1 engine system-6 database

engine system-6 directly reflects the basic technical state of each locomotive in use. In order to facilitate analysis, search and statistics, the input of engine system-6 database should be based on disciplines, such as diesel engine, auxiliary, motor, electrical appliance, running, braking and instrument. The input should be accurate and timely, including vehicle type, vehicle number, fault location, repair situation, repair personnel and repair time. In order to facilitate the search and treatment of locomotive inertia fault, the system shall be able to automatically prompt the same fault for repeated repair twice or more within 10 days, 20 days and 30 days

3.2 locomotive System-28 database

locomotive System-28 is input timely and accurately, so that the comprehensive engineer of the technology department can always grasp the basic technical status of the key components of the locomotive, cooperate with the locomotive running kilometers, prepare the locomotive minor auxiliary repair plan more timely and accurately, and competitively repair the locomotive, so as to improve the technical status of the locomotive. Ji tong-28 is also an important basis for the inspection and repair of small auxiliary repair locomotives. The input of Ji tong-28 database should be classified according to the system, including vehicle type, vehicle number, defective places and phenomena, locomotive repair process, inspection and repair of faults, names of repair and inspection workers, and inspection and measurement data

3.3 the service life management database of locomotive parts

mainly includes the manufacturer of parts, production date, loading date, loading car number, installed part number, incoming repair overview, expected service life, accumulated loading service life, expected scrap life, and automatic prompt of parts to the expected scrap life

3.4 locomotive oil water sample test, ferrography analysis database

oil water sample test mainly includes locomotive number, repair process, sampling date, kinematic viscosity of engine oil, pH value, total alkali value, petroleum ether insoluble matter and comprehensive evaluation of engine oil, hardness, chlorine content, total concentration, pH value and comprehensive evaluation data of water sample test water; Ferrography analysis mainly includes locomotive number, repair process, sampling date, severe wear level, fatigue wear level, spherical abrasive particle level, copper metal amount, aluminum metal amount, fine iron abrasive particles, main data of various oxide contents, and automatic prompt when the test and analysis results exceed the predetermined range

3.5 locomotive dynamic detection database

locomotive dynamic detection data mainly include locomotive number, measurement date, locomotive power, including fault magnetic power, oil supply marking, oil motor pointer position, supercharger boost pressure, oil-water temperature value, fuel pressure, oil outlet and end pressure, diesel engine cylinder compression pressure, circuit insulation value, charging current value, traction motor voltage and current value Automatically prompt when the detection data exceeds the predetermined range

3.6 locomotive parts inspection and measurement database

shall mainly include the number of parts, test date, repair process, name of inspection and acceptance person, test data and status of each department, records of replaced parts, test status and data of test bench, and automatic prompt when the test data exceeds the predetermined range

3.7 locomotive basic technical status, running kilometers and repair schedule database

mainly includes locomotive factory repair, medium repair and previous installation and transformation records, the number of main parts, running kilometers since the last repair, cumulative running kilometers, running kilometers after overhaul, running kilometers after medium repair, last repair, and previous repair

3.8 locomotive oil and fuel consumption rate database

mainly includes the oil consumption rate of previous minor and auxiliary repairs after new or major repair of locomotive, the oil consumption rate of previous minor and auxiliary repairs after medium repair, the oil consumption rate after minor repair, and the current oil consumption rate per thousand engine kilometers; The fuel consumption rate after new construction or overhaul, the fuel consumption rate of previous minor and auxiliary repairs after intermediate repair, the fuel consumption rate after minor repair, the current fuel consumption rate of 10000 ton kilometers, the consumption rate of various oils and fats, and the oil and fuel consumption rate will be automatically prompted when they exceed the predetermined consumption range

3.9 locomotive parts data and technical requirements database

locomotive related parts drawing data, basic technical requirements, size and limit requirements, relevant technical requirements and regulations issued by the technology department and superior departments, locomotive installation and transformation requirements, locomotive repair requirements, locomotive identification requirements and records

3.10 locomotive breaking, stopping and temporary repair database

mainly includes locomotive number, accident nature, occurrence date, fault location, parts damage, treatment process and results; The previous faults of the locomotive can be consulted to provide reference for the maintenance and management personnel to grasp the technical status of the locomotive more accurately

3.11 locomotive typical fault case analysis database

mainly includes locomotive number, occurrence date, fault location, fault phenomenon, phenomenon analysis, fault analyst data, detailed processing process and results; It plays a certain role in the teaching of education

4 application of the system

after the establishment of the database, we should organically apply the information of Taizhou Plastic industry database, which is a pillar industry of the regional economy, to better serve the locomotive maintenance management departments, managers and maintenance workers. The following examples are given to illustrate:

4.1 machine system-6 after the report is activated, some fault workers cannot handle the maintenance due to the limitations of maintenance conditions, On the premise of not affecting the safe use of the locomotive, it will be maintained until the next repair process. In this way, the worker will fill in "minor minor minor repair processing" in the column of locomotive system-6 small ticket repair situation, and this activity will be automatically converted to locomotive System-28 report. Professional and comprehensive engineers can browse the whole locomotive System-28 report situation on the computer, and follow the locomotive running kilometers, locomotive dynamic detection data According to the tips of the locomotive parts life database, the locomotive minor repair plan shall be prepared in time, and the faults shall be handled in time when the locomotive minor repair is carried out, so as to reduce the occurrence of machine failure and temporary repair, and improve the quality of locomotive maintenance

4.2 according to the oil and fuel consumption rate per thousand engine kilometers of the locomotive, the tips of the service life database of locomotive parts, the tips of the oil ferrography analysis database, the comprehensive dynamic detection data and the locomotive running kilometers, the maintenance engineer shall timely and reasonably prepare the locomotive medium repair plan and the pre compiled locomotive major repair plan. Carry out large and medium-sized maintenance of the locomotive in time to restore the basic technical state of the locomotive and the technical state of the main components, reduce the consumption of oil and fuel, and save costs; Major and medium-sized repairs shall be carried out before the expected life of main parts to reduce the temporary repair of locomotive damage caused by parts damage on November 18, 2016

4.3 when the locomotive is overhauled in the depot, workers or maintenance managers can consult relevant contents on the website to guide the maintenance work. For example, locomotive repair: you can refer to locomotive repair items and contents, and relevant technical installation and transformation items and contents; When the locomotive is in temporary repair, you can look up the machine breaking temporary repair database to know whether the fault is an inertia fault or whether there has been a fault in relevant parts. Cooperate with the locomotive parts inspection and measurement database to find the root cause of the fault so as to solve it completely; When dealing with the fault, you can consult the locomotive fault cases for help

5 conclusion

the modern locomotive maintenance information management system should be developed with the development of the locomotive depot. Each segment of the composition scheme should be appropriately adjusted according to the different allocated models. The data and related information input should be timely and accurate to maintain the timeliness of the data

6 references

1 [U.S.] Robert Breyer and Sean Riley, translated by Xiao Wengui, Xiao Dan, Wu Yuanzhen, Xiao Feng, translated by Shi Xiangsheng, school switched to Taihe Fast Ethernet, electronic industry press, 1996

2dalian Diesel Locomotive Research Institute diesel locomotive 1999 1-12

author name: Liu Wei

date of birth: July 1971

graduation school: Jilin Railway Transportation staff University diesel locomotive major

employer: Liuzhou locomotive depot

technical position: none (diesel fitter)

postal editor