CN213338411U

CN213338411U - Locomotive online maintenance system

Info

Publication number: CN213338411U
Application number: CN202023057768.2U
Authority: CN
Inventors: 王书涛; 刘义考; 栾贻光
Original assignee: Jinan Huachang Machinery Manufacturing Co ltd
Current assignee: Jinan Huachang Machinery Manufacturing Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-06-01
Anticipated expiration: 2030-12-18

Abstract

The utility model discloses an online maintenance system of locomotive, including PLC controller and HMI picture, the input of PLC controller is equipped with the urgent stop button of point of contact, the output of PLC controller controls converter one, converter two, converter three and converter four respectively. The utility model discloses a set up urgent stop button, PLC controller right: the first frequency converter, the second frequency converter, the third frequency converter and the fourth frequency converter are logically controlled; and (3) final driving: the first frame, the second frame, the third frame and the fourth frame act cooperatively. The system has the functions of stroke limiting comprehensive protection, variable frequency digital quantity speed regulation and soft start, variable frequency comprehensive protection, complete linkage protection realized by PLC logic, visualization operation in the HMI realization process and visualization of faults, and solves the problems that the locomotive online maintenance system is inconvenient to construct when maintaining the locomotive, has complicated fault troubleshooting steps and lacks limiting protection and variable frequency protection.

Description

Locomotive online maintenance system

Technical Field

The utility model relates to a locomotive overhauls technical field, specifically is an online maintenance system of locomotive.

Background

The off-line maintenance cost of the locomotive is extremely high, and the period is very long; the requirement is provided for on-line maintenance in order to meet the requirement of lifting the transport capacity of the railway, so that the special equipment of the car lifting jack comes along with the transport, and the on-line maintenance of the locomotive needs one equipment to lift the whole locomotive to a certain height; the car lifting jack is designed under the background, and each device is provided with a special control system; we have then devised this control scheme.

In the prior art, the forward rotation or the reverse rotation of a motor is controlled by the on-off of an alternating current contactor, namely, an old relay contactor control mode is used to control the operation of 4 locomotive machines, the equipment needs 4 completely identical locomotive machines to coordinate to complete the purpose of lifting the locomotive, the relay contactor control mode is difficult to perfectly match the operation of four locomotive machines and realize perfect protection, even if the equipment can be realized by adding a large number of state relays, the circuit is very complex, the construction is inconvenient, once a problem occurs in the operation process, very professional electrical personnel are required to check, and the position of the original wiring mode, at which the wire number needs to be recorded, is very troublesome (about 2 hours is required for the professional personnel to disassemble and assemble once); adopt the double socket mode of this application, non professional dismouting once is no longer than 10 minutes, has realized following purpose simultaneously: the system comprises a travel limit comprehensive protection function, a variable frequency digital quantity speed regulation and soft start function, a variable frequency comprehensive protection function, a PLC logic realization perfect interlocking protection function and an HMI realization process visualization operation and fault visualization function.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an online maintenance system of locomotive possesses the spacing integrated protection of stroke, frequency conversion digital quantity speed governing and soft start function, frequency conversion integrated protection function, PLC logic realize perfect chain protection, HMI realize the visual operation of process and the visual advantage of trouble, has solved the online maintenance system of locomotive and has appeared that the construction is inconvenient, the trouble shooting step is loaded down with trivial details and lack the problem of spacing protection and frequency conversion protection when overhauing the locomotive.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an online maintenance system of locomotive, includes PLC controller and HMI picture, the input of PLC controller is equipped with the emergency stop button of point of contact, the output of PLC controller controls converter one, converter two, converter three and converter four respectively, the output electricity of converter one, converter two, converter three and converter four is connected with frame, No. two frames, No. three frames and No. four frames respectively.

Preferably, the first frequency converter, the second frequency converter, the third frequency converter and the fourth frequency converter are the same in brand, power and model.

Preferably, the size and the model of the first rack, the second rack, the third rack and the fourth rack are the same.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up emergency stop button, the PLC controller, converter one, converter two, converter three, converter four, a frame, No. two frames, the cooperation of No. three frames and No. four frames is used, possess the spacing integrated protection of stroke, frequency conversion digital quantity speed governing adds soft start function, frequency conversion integrated protection function, the perfect chain protection is realized to the PLC logic, HMI realizes the visual operation of process and the visualization of trouble, it is inconvenient that the online maintenance system of locomotive appears the construction when overhauing the locomotive to have solved, trouble troubleshooting step is loaded down with trivial details and lack the problem of spacing protection and frequency conversion protection, be worth promoting.

Drawings

FIG. 1 is a schematic diagram of the system of the present invention;

FIG. 2 is a schematic diagram illustrating the operation of the HMI for independent control mode;

FIG. 3 is a schematic diagram illustrating the operation of the HMI picture synchronization mode of the present invention;

fig. 4 is an application schematic diagram of the HMI picture status indication page according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, an online locomotive maintenance system includes a PLC controller and an HMI picture, an input end of the PLC controller is provided with an emergency stop button at a contact point, an output end of the PLC controller controls a first frequency converter, a second frequency converter, a third frequency converter and a fourth frequency converter respectively, output ends of the first frequency converter, the second frequency converter, the third frequency converter and the fourth frequency converter are electrically connected with a first rack, a second rack, a third rack and a fourth rack respectively, and brands, powers and models of the first frequency converter, the second frequency converter, the third frequency converter and the fourth frequency converter are the same; the size and the model of the first frame, the second frame, the third frame and the fourth frame are the same;

referring to fig. 2, when the upper circular indicator light is green, it indicates that the rack can move in the direction, and when it is red, it is prohibited, if there is a red light, it should enter the status indication or alarm description to check the specific failure reason; selecting the speed as a circulation mode, pressing one speed for changing, and selecting the corresponding speed before operation; the slow speed is 20 Hz, the medium speed is 35 Hz, and the fast speed is 50 Hz; the corresponding machine frame moves towards the appointed direction by pressing a moving key of each frame at the lower part of the left side, only the machine frame selected by an enabling button can move under the condition that the conditions are met when the machine frame is lifted up and lowered down, and the mode is mainly used for preliminary adjustment, so that a continuous mode is not available;

referring to fig. 3, when the upper circular indicator light is green, it indicates that the rack can move in the same direction, and when it is red, it is prohibited, if there is a red light, it should enter the status indication or alarm description to check the specific failure reason; selecting the speed as a circulation mode, pressing one speed for changing, and selecting the corresponding speed before operation; pressing down a moving key at the lower part of the left side at the slow speed of 20 Hz, the medium speed of 35 Hz and the fast speed of 50 Hz, and moving all the racks to the appointed direction; stopping when the hands are released if the continuous mode is not selected; if the continuous mode is selected, until a stop button is pressed, or a certain frame is failed, or a certain frame reaches a limit of the movement direction;

referring to fig. 4, the status indicator light of the screen monitoring device indicates abnormal red dot amount and normal green dot amount, the frequency conversion fault requests to see the alarm signal on the corresponding frequency converter to contact the technical staff, and other alarms request professional electricians to repair and maintain;

further description explains: the emergency stop button is independent of the HMI and used for forced stop in emergency, and the emergency stop switch independent of the HMI ensures safe handling in emergency; the HMI picture is set with a chain mode (the independent control picture can automatically clear synchronous data and vice versa), the HMI picture can display the running state and fault information in detail, and the PLC logic realizes that the motor of each rack is independently protected by limiting and overloading without influencing other racks in the independent mode; the interactive protection is realized for all the frames in the synchronous mode: in order to ensure the synchronism of the speed, the speed of 4 frequency converters is synchronous by adopting digital quantity, all cables needing to be disassembled and assembled are designed into a double-socket mode, and a middle cable is provided with a plug; through setting up emergency stop button, the PLC controller, converter one, converter two, converter three, converter four, frame one, frame two, the cooperation of frame three and frame four is used, possess the spacing integrated protection of stroke, frequency conversion digital quantity speed governing adds soft start function, frequency conversion integrated protection function, the perfect chain protection is realized to the PLC logic, the visual operation of HMI realization process and the visualization of trouble, it is inconvenient that the locomotive on-line maintenance system appears the construction when overhauing the locomotive to have solved, the trouble troubleshooting step is loaded down with trivial details and lack the problem of spacing protection and frequency conversion protection, be worth promoting.

In summary, the following steps: this locomotive on-line maintenance system, through setting up urgent stop button, the PLC controller, converter one, converter two, converter three, converter four, a frame, No. two frames, the cooperation of No. three frames and No. four frames is used, possess the spacing integrated protection of stroke, frequency conversion digital quantity speed governing adds soft start function, frequency conversion integrated protection function, the perfect chain protection is realized to the PLC logic, the visual operation of HMI realization process and the visualization of trouble, it is inconvenient to have solved the locomotive on-line maintenance system and appear the construction when overhauing the locomotive, the trouble troubleshooting step is loaded down with trivial details and lack the problem of spacing protection and frequency conversion protection.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a locomotive overhauls system on line, includes PLC controller and HMI picture, its characterized in that: the input end of the PLC is provided with an emergency stop button close to a point, the output end of the PLC controls a first frequency converter, a second frequency converter, a third frequency converter and a fourth frequency converter respectively, and the output ends of the first frequency converter, the second frequency converter, the third frequency converter and the fourth frequency converter are electrically connected with a first frame, a second frame, a third frame and a fourth frame respectively.

2. The locomotive online maintenance system of claim 1, wherein: the first frequency converter, the second frequency converter, the third frequency converter and the fourth frequency converter are the same in brand, power and model.

3. The locomotive online maintenance system of claim 1, wherein: the size and the model of the first frame, the second frame, the third frame and the fourth frame are the same.