Coke oven electric locomotive control method and coke oven electric locomotive

Abstract

The invention provides a control method of a coke oven electric locomotive and the coke oven electric locomotive. The method comprises the steps that switchable sunny / rainy day control modes and gear control instructions corresponding to multiple gears are preset in a main control system of the coke oven electric locomotive, and different default speed values are preset in each gear control instruction; in response to switching from the sunny day control mode to the rainy day control mode, the main control system uniformly controls and reduces a preset speed value in each level of gear control instruction; and the main control system generates a corresponding gear control instruction based on the current gear and sends the gear control instruction to a walking controller of the coke oven electric locomotive through the locomotive bus so as to control the operation of the coke oven electric locomotive based on a speed value in the gear control instruction. According to the invention, the sunny / rainy day control mode is preset in the main control system, and the speed value used for uniformly changing the control instruction of each level of gear is configured, so that speed reduction driving can be realized under the condition of ensuring that the number of gears is not changed, and flexible gear selection is provided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electromechanical devices and automation, and in particular to a coke oven electric locomotive control method and coke oven electric locomotive. BACKGROUND

[0002] The conventional track locomotive generally adopts the way of reducing speed to avoid the occurrence of safety accidents such as collision when facing rainy days. However, the conventional rainy day speed reduction control is only realized by simply limiting the highest gear of the track locomotive, resulting in fewer available gears in rainy conditions, and the gear selection is not flexible enough, resulting in low transportation efficiency. Moreover, the conventional rainy day speed reduction control is mostly manually controlled, which is not intelligent enough, and lacks effective brake distance protection measures, resulting in safety hazards. SUMMARY

[0003] In order to realize safer and more flexible driving in rainy days and ensure the safety and intelligence of driving, in one aspect of the present application, a coke oven electric locomotive control method is provided, which comprises: presetting switchable sunny / rainy day control modes and gear control instructions corresponding to multiple gears in the main control system of the coke oven electric locomotive, and different default speed values are preset in each gear control instruction; in response to switching from the sunny day control mode to the rainy day control mode, the main control system uniformly controls the reduction of the preset speed values in the gear control instructions; the main control system generates a corresponding gear control instruction based on the current gear and sends it to the running controller of the coke oven electric locomotive through the locomotive bus to control the operation of the coke oven electric locomotive based on the speed value in the gear control instruction.

[0004] In one or more embodiments, the coke oven electric locomotive control method of the present application further comprises: in response to switching from the rainy day control mode to the sunny day control mode, restoring the speed values in the gear control instructions to the corresponding default speed values.

[0005] In one or more embodiments, the coke oven electric locomotive control method of the present application further comprises: setting a highest gear limit in the rainy day control mode; in the rainy day control mode, in response to the current gear being greater than the highest gear limit, generating a gear control instruction corresponding to the highest gear limit.

[0006] In one or more embodiments, the coke oven electric locomotive control method of the present application further comprises: setting a rainy day speed reducer near the end of the track, the rainy day speed reducer is preset with a corresponding gear control instruction and is configured to send the gear control instruction directly to the running controller of the coke oven electric locomotive when the coke oven electric locomotive passes by.

[0007] In one or more embodiments, the control method of the coke oven electric locomotive further comprises: setting a plurality of rainy day speed reducers at intervals near the track terminal; presetting different gear control instructions for each of the rainy day speed reducers, and configuring the speed values in the gear control instructions to be distributed in a decreasing order from far to near the track terminal corresponding to the rainy day speed reducers.

[0008] In one or more embodiments, the control method of the coke oven electric locomotive further comprises: configuring the rainy day speed reducer closest to the track terminal as a limit rainy day speed reducer; configuring a parking instruction for the limit rainy day speed reducer to control parking when the coke oven electric locomotive passes.

[0009] In one or more embodiments, the control method of the coke oven electric locomotive further comprises: presetting a sunny / rainy day control button in the control interface of the main control system to manually trigger the switching of the sunny / rainy day control mode; and setting a humidity sensor outside the coke oven electric locomotive, and acquiring the humidity value of the humidity sensor in real time by the main control system, and automatically triggering the switching of the sunny / rainy day control mode based on the humidity value and the preset switching threshold.

[0010] In one or more embodiments, the control method of the coke oven electric locomotive further comprises: configuring the control priority of the sunny / rainy day control button to be higher than the control priority of the humidity sensor; and setting a priority maintenance time limit for the sunny / rainy day control button to cancel the control priority of the sunny / rainy day control button after the maintenance time limit arrives until the next button operation.

[0011] In one or more embodiments, the control method of the coke oven electric locomotive further comprises: configuring the control priority of the rainy day speed reducer to be higher than the control priority of the sunny / rainy day control button.

[0012] In the second aspect of the present application, a coke oven electric locomotive is provided, comprising: a main control system of the coke oven electric locomotive, wherein a PLC program executable is preset in the main control system, and the PLC program is used to realize the control method of the coke oven electric locomotive in any of the above embodiments when executed; at least one speed reduction controller, which is arranged or spaced near the track terminal, and in each of the speed reduction controllers, a corresponding gear control instruction is preset, and configured to directly send the gear control instruction to the running controller of the coke oven electric locomotive when the coke oven electric locomotive passes through the at least one speed reduction controller; a humidity sensor, which is arranged outside the coke oven electric locomotive and is in communication connection with the main control system, and is configured to acquire the humidity value of the environment in real time.

[0013] The beneficial effects of the present application include: the present application can realize the purpose of speed reduction driving under the condition of ensuring the number of gears unchanged, and provide flexible gear selection, thereby improving the transportation efficiency under the rain control mode, by presetting the sunny / rainy day control mode in the master control system, configuring the speed value in the gear control instruction of each gear level for unified change, and making the preset speed value in the gear control instruction of each gear level under the rain control mode smaller than the preset speed value in the gear control instruction of each gear level under the corresponding sunny control mode; in addition, the present application also realizes the automatic switching of the sunny / rainy day control mode by setting the humidity sensor, and effectively ensures the safety of the coke oven electric locomotive operation by setting the rain speed reducer. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other embodiments can also be obtained from these drawings without creative labor.

[0015] Figure 1 The working flow chart of a control method embodiment of the coke oven electric locomotive of the present application; Figure 2 The working scene schematic diagram of the coke oven electric locomotive of the present application; Figure 3 The structural schematic diagram of a coke oven electric locomotive embodiment of the present application. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the present application more clear and obvious, the following will further describe the embodiments of the present application in combination with specific embodiments and with reference to the drawings.

[0017] In order to realize safer and more flexible rain driving, the present application proposes a control method for a coke oven electric locomotive, as shown in Figure 1 The method comprises the following steps: step S1, presetting switchable sunny / rainy day control mode and gear control instruction corresponding to multiple gears in the master control system of the coke oven electric locomotive, and presetting different default speed values in each gear control instruction.

[0018] Specifically, the multiple gear positions preset in the master control system in this step are the general locomotive gear positions controlled by the locomotive gear lever and used to control the running speed of the locomotive. It can be understood that the locomotive is in an accelerating state until the speed is stable when upshifting, and the locomotive is in a braking deceleration state until the speed is stable when downshifting. The sunny / rainy day control mode refers to the sunny day control mode and the rainy day control mode. Different from the traditional way of simply limiting the highest gear position and thus limiting the running speed of the locomotive in the rainy day control mode, the sunny / rainy day control mode in this step is used to uniformly change the speed values in the gear position control instructions, and the preset speed values in the gear position control instructions in the rainy day control mode are all smaller than the preset speed values in the corresponding gear position control instructions in the sunny day control mode, such as the speed value in the sunny day 3-gear position control instruction being smaller than the speed value in the rainy day 3-gear position control instruction, so as to achieve the purpose of reducing the running speed while ensuring the number of gear positions, and provide flexible gear selection, thereby improving the transportation efficiency in the rainy day control mode.

[0019] The method further comprises: step S2, in response to switching from the sunny day control mode to the rainy day control mode, uniformly controlling the master control system to reduce the preset speed values in the gear position control instructions.

[0020] Specifically, after the master control system receives the switching instruction from the sunny day control mode to the rainy day control mode, the speed values in the gear position instructions will be uniformly modified. The specific code implementation can be realized by conditional statements or other ways, and the present application does not limit this.

[0021] In one embodiment, the way in which the master control system uniformly controls the reduction of the preset speed values in the gear position control instructions includes: uniformly reducing the preset speed values in the gear position control instructions by percentage to ensure the smoothness of gear shifting; or subtracting the preset speed values in the gear positions by corresponding preset values, also needing to ensure the smoothness of gear shifting. It should be noted that the above-mentioned percentage reduction and subtraction of corresponding preset values do not occur during the sunny / rainy day control mode switching process, but the corresponding two groups of values are calculated in advance according to the above-mentioned way and saved to be directly selected and replaced when the sunny / rainy day control mode is switched. In addition, the specific meaning of the speed value in this step is related to the speed regulation mode of the locomotive, such as in the voltage regulation speed regulation mode, the meaning of the speed value in this step is the voltage value; in the frequency regulation speed regulation mode, the meaning of the speed value in this step is the frequency; among them, the frequency regulation speed regulation mode is more common, and the present application is a coke oven electric locomotive which receives the gear position control instruction sent by the master control system through the running frequency converter, and outputs a control signal with a corresponding frequency according to the speed value in the gear position control instruction and sends it to the running motor of the coke oven electric locomotive, thereby realizing frequency regulation speed regulation.

[0022] The method further comprises: in step S3, the host system generates a corresponding gear control instruction based on the current gear and sends the gear control instruction to the running controller of the coke oven electric locomotive through the locomotive bus to control the running of the coke oven electric locomotive based on the speed value in the gear control instruction.

[0023] Specifically, the running controller in this step is a running frequency converter, which is used to frequency convert and output according to the speed value in the gear control instruction, and send the frequency-converted control signal to the running motor to control the running speed of the locomotive. In this step, since the number of gears is not reduced after switching to the rainy day control mode, the locomotive can be selected according to the specific situation, such as the size of the rainfall and the wet and slippery condition of the track, to improve the transportation efficiency of the locomotive on the basis of realizing the speed reduction in rainy days.

[0024] In one embodiment, the control method of the coke oven electric locomotive further comprises: in response to switching from the rainy day control mode to the sunny day control mode, restoring the speed value in each gear control instruction to the corresponding default speed value. Specifically, the default value in this embodiment is the normal speed value of each gear in the situation control mode.

[0025] In one embodiment, the control method of the coke oven electric locomotive further comprises: setting a highest gear limit in the rainy day control mode; and in the rainy day control mode, in response to the current gear being greater than the highest gear limit, generating a gear control instruction corresponding to the highest gear limit. Specifically, this embodiment simultaneously uses the methods of reducing the speed value in each gear control instruction and limiting the highest gear to cope with extremely severe weather and to avoid personnel operation errors.

[0026] In an optional embodiment, a setting interface can be configured for the rainy day control mode, and the content in the highest gear limit selection window in the setting interface can be selected by manually inputting or selecting by pulling down to select the required highest gear limit. If the content in the selection window is empty, not limited, or 0 gears, it means that the highest gear limit is not enabled, otherwise if it is 1 gear, 2 gears, etc., it means that the highest gear limit is enabled. This embodiment allows the driver to configure the highest gear limit according to the actual situation in extreme weather.

[0027] In an optional embodiment, the setting interface of the rainy day control mode further comprises speed value settings of each instruction, and provides percentage settings relative to the default speed value or subtraction settings relative to the default speed value. When used, the user only needs to fill in the corresponding percentage data or the value to be subtracted, and the setting interface can automatically generate the speed values of each instruction in the rainy day control mode and save them.

[0028] In one embodiment, the control method of the coke oven electric locomotive of the present application further comprises: setting a rainy day speed reducer near the end of the track, the rainy day speed reducer being pre-set with corresponding gear control instructions and being configured to directly send the gear control instructions to the running controller of the coke oven electric locomotive when the coke oven electric locomotive passes by.

[0029] Specifically, taking the process of transporting coke by the coke oven electric locomotive as an example, please refer to Figure 2 , the coke oven electric locomotive is a coke receiving device for coke discharging, which is mainly responsible for transporting the mature coke in the coke oven carbonization chamber to the dry quenching derrick through the track. The track stopper is arranged in front of the dry quenching derrick, i.e. at the end of the track. In order to ensure that the coke oven electric locomotive can stop under the dry quenching derrick, a rainy day speed reducer needs to be arranged behind the dry quenching derrick, i.e. in the direction away from the track stopper, so that no matter what gear the locomotive is in before passing through the rainy day speed reducer, it will be forced to drop to the corresponding gear, thereby realizing automatic gear drop. Moreover, since the control of the rainy day speed reducer on the locomotive does not pass through the main control system or the locomotive bus, but directly communicates with the running controller in a point-to-point manner, even if the main control system crashes or the locomotive bus fails to communicate, the locomotive can still be forced to slow down, thereby greatly improving the safety of the coke oven electric locomotive and effectively avoiding a collision accident, which in this embodiment refers to a collision with the track stopper.

[0030] In one embodiment, the control method of the coke oven electric locomotive of the present application further comprises: setting multiple rainy day speed reducers at intervals near the end of the track; pre-setting different gear control instructions for each rainy day speed reducer, and configuring the speed values in the gear control instructions to be distributed in a decreasing order from far to near the end of the track for the corresponding rainy day speed reducers.

[0031] Specifically, the present embodiment aims to illustrate that multiple rainy day speed reducers can be arranged. In one optional embodiment, multiple rainy day speed reducers can be arranged at intervals behind the dry quenching derrick to realize automatic step-by-step gear drop, thereby avoiding faults caused by directly dropping from a high gear to a low gear, such as coke spilling caused by inertia, or damage to the running motor, wheels, and tracks.

[0032] In one embodiment, the control method of the coke oven electric locomotive of the present application further comprises: configuring the rainy day speed reducer closest to the end of the track as a limit rainy day speed reducer; and configuring a parking instruction for the limit rainy day speed reducer to control parking when the coke oven electric locomotive passes by.

[0033] Specifically, in the above embodiment, a rain day speed reducer is arranged between the track stoppers of the dry quenching shaft, which is used as a limit rain day speed reducer to forcibly control the parking of the coke oven electric locomotive to avoid a collision accident. The limit rain day speed reducer is the second to last insurance for parking, and the last insurance is the track stopper. Under normal circumstances, the coke oven electric locomotive is slowed down to a state that can be stopped at any time by the multi-stage rain day speed reducer before reaching the dry quenching shaft, and is stopped by the control personnel when reaching the dry quenching shaft.

[0034] In one embodiment, the control method of the coke oven electric locomotive further comprises: presetting a sunny / rainy day control button in the control interface of the main control system to manually trigger the switching of the sunny / rainy day control mode; and arranging a humidity sensor outside the coke oven electric locomotive, and acquiring the humidity value of the humidity sensor in real time by the main control system, and automatically triggering the switching of the sunny / rainy day control mode based on the humidity value and the preset switching threshold.

[0035] Specifically, two modes for triggering the switching of the sunny / rainy day control mode are provided in the embodiment, one is a manual switching mode, and the other is an automatic switching mode, which can be used alone or together.

[0036] In one embodiment, the control method of the coke oven electric locomotive further comprises: configuring the control priority of the sunny / rainy day control button to be higher than the control priority of the humidity sensor; and setting a priority maintenance time limit for the sunny / rainy day control button to cancel the control priority of the sunny / rainy day control button after the maintenance time limit arrives until the next button operation.

[0037] Specifically, the embodiment provides a further implementation mode of simultaneously using the manual switching mode and the automatic switching mode, which comprises: setting the priority of the sunny / rainy day control button and the humidity sensor respectively, so that when the mode switching instructions of the sunny / rainy day control button with high priority and the humidity sensor with low priority are generated at the same time, the switching instructions are marked according to the priority of the sunny / rainy day control button and the humidity sensor respectively, and then the mode switching instruction with high priority marking is preferentially executed according to the marking; and in order to avoid frequent switching of the sunny / rainy day control mode, especially to avoid automatic switching caused by instantaneous change of environmental humidity after manual switching, the embodiment further sets a priority maintenance time limit for the sunny / rainy day control button, so that the sunny / rainy day control mode will not be automatically switched by the humidity sensor within the priority maintenance time limit.

[0038] In one embodiment, the control method of the coke oven electric locomotive further comprises: configuring the control priority of the rain day speed reducer to be higher than the control priority of the sunny / rainy day control button.

[0039] Specifically, since the rain reducer is the last safety guarantee in rain mode, its priority is higher than the priority of the sunny / rainy control button and the humidity sensor. That is, when the three generate mode switching instructions at the same time, the mode switching instruction generated by the rain reducer is executed first to avoid the erroneous operation of switching the rain mode to the sunny mode in rain mode.

[0040] Through the above embodiments, the present invention can ensure reduced speed driving on rainy days and realize multi-gear switching to improve the control flexibility of driving on rainy days, and realizes automatic switching of sunny / rainy day control mode by setting a humidity sensor, and effectively ensures the safety of coke oven electric locomotive operation by setting a rainy day reducer.

[0041] In the second aspect of the present invention, a coke oven electric locomotive is also proposed, such as Figure 3 As shown, it includes: a main control system 100 for a coke oven electric locomotive, in which an executable PLC program is preset, and when the PLC program is executed, it is used to implement a control method as in any of the above-mentioned control method embodiments for a coke oven electric locomotive; at least one deceleration controller 200, in which at least one deceleration controller 200 is arranged or arranged at intervals near the end of the track, and a corresponding gear control instruction is preset in each deceleration controller 200, and is configured to directly send a gear control instruction to the running controller of the coke oven electric locomotive when the coke oven electric locomotive passes through at least one deceleration controller 200; a humidity sensor 300, in which the humidity sensor 300 is arranged outside the coke oven electric locomotive and is communicatively connected to the main control system, and is configured to obtain the humidity value of the environment in real time.

[0042] The coke oven electric locomotive using the above-mentioned embodiment can ensure reduced speed driving on rainy days and can also realize multi-gear switching, thereby improving the control flexibility of driving on rainy days. By setting a humidity sensor, automatic switching of sunny / rainy day control mode is realized, and by setting a rainy day reducer, the safety of the coke oven electric locomotive operation is effectively guaranteed.

[0043] The above are exemplary embodiments disclosed herein. However, it should be noted that various changes and modifications may be made without departing from the scope of the disclosed embodiments of the present invention as defined in the claims. The functions, steps, and / or actions of the method claims according to the disclosed embodiments described herein do not need to be performed in any particular order. The serial numbers of the disclosed embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0044] Those skilled in the art should understand that the above discussion of any embodiment is only exemplary, and is not intended to mean that the scope of the embodiments disclosed by the present application (including claims) is limited to these examples; under the idea of the embodiments of the present application, the above embodiments or technical features in different embodiments can also be combined, and there are many other changes of different aspects of the embodiments of the present application as above. In order to be brief, they are not provided in details. Therefore, any omission, modification, equivalent replacement, improvement, etc. made in the spirit and principle of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.

Claims

1. A method for controlling a coke oven electric locomotive, characterized in that: The method comprises: A switchable sunny / rainy weather control mode and gear control instructions corresponding to multiple gears are preset in the main control system of the coke oven electric locomotive, and each gear control instruction is preset with a different default speed value; In response to switching from the sunny weather control mode to the rainy weather control mode, the main control system uniformly controls to reduce the speed values ​​preset in the gear control instructions at each level; The main control system generates a corresponding gear control instruction based on the current gear and sends it to the running controller of the coke oven electric locomotive through the locomotive bus to control the operation of the coke oven electric locomotive based on the speed value in the gear control instruction.

2. The control method of a coke oven electric locomotive according to claim 1, characterized in that: The method further comprises: In response to switching from the rainy day control mode to the sunny day control mode, the speed values ​​in the gear control instructions of each level are restored to the corresponding default speed values.

3. The coke oven electric locomotive control method according to claim 1, characterized in that: The method further comprises: Set top gear limit in Rain Control mode; In the rain control mode, in response to the current gear being greater than the highest gear limit, a gear control instruction corresponding to the highest gear limit is generated.

4. The control method of a coke oven electric locomotive according to claim 1, characterized in that: The method further comprises: A rainy day reducer is set near the end of the track. The rainy day reducer is preset with a corresponding gear control instruction and is configured to directly send the gear control instruction to the running controller of the coke oven electric locomotive when the coke oven electric locomotive passes by.

5. The coke oven electric locomotive control method according to claim 4, characterized in that: The method further comprises: Multiple rainy weather speed reducers are installed at intervals near the end of the track; A different gear control instruction is preset for each of the rainy weather reducers, and the speed value in the gear control instruction is configured to correspond to a distribution in which the distance between the rainy weather reducer and the track end point decreases from far to near.

6. The coke oven electric locomotive control method according to claim 5, characterized in that: The method further comprises: configuring the rainy weather speed reducer closest to the end point of the track as the extreme rainy weather speed reducer; A stop instruction is configured for the extreme rainy weather retarder to control the stop when the coke oven electric locomotive passes by.

7. The coke oven electric locomotive control method according to claim 6, characterized in that: The method further comprises: Presetting a sunny / rainy day control button in the control interface of the main control system to manually trigger the switching of the sunny / rainy day control mode; and A humidity sensor is provided outside the coke oven electric locomotive, and the main control system obtains the humidity value of the humidity sensor in real time, and automatically triggers the switching of the sunny / rainy day control mode based on the humidity value and a preset switching threshold.

8. The coke oven electric locomotive control method according to claim 7, characterized in that: The method further comprises: Configuring the control priority of the sunny / rainy day control button to be higher than the control priority of the humidity sensor; and A priority retention time limit is set for the sunny / rainy weather control button so that the control priority of the sunny / rainy weather control button is released after the retention time limit is reached until the next button operation.

9. The coke oven electric locomotive control method according to claim 8, characterized in that: The method further comprises: The control priority of configuring the rainy day speed reducer is higher than the control priority of the sunny / rainy day control button.

10. A coke oven electric locomotive, characterized in that: include: A main control system for a coke oven electric locomotive, wherein the main control system is pre-installed with an executable PLC program, and when the PLC program is executed, it is used to implement the control method for the coke oven electric locomotive according to any one of claims 1 to 9; At least one deceleration controller, the at least one deceleration controller being arranged or spaced near the end of the track, and each of the deceleration controllers being preset with a corresponding gear control instruction, and being configured to directly send the gear control instruction to the running controller of the coke oven electric locomotive when the coke oven electric locomotive passes through the at least one deceleration controller; A humidity sensor is provided outside the coke oven electric locomotive and is in communication connection with the main control system, and is configured to obtain a humidity value of the environment in real time.

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