CN114065428A - Turning wheel method and device for train wheel, electronic equipment and storage medium - Google Patents
Turning wheel method and device for train wheel, electronic equipment and storage medium Download PDFInfo
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- CN114065428A CN114065428A CN202111363064.4A CN202111363064A CN114065428A CN 114065428 A CN114065428 A CN 114065428A CN 202111363064 A CN202111363064 A CN 202111363064A CN 114065428 A CN114065428 A CN 114065428A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/02—Reliability analysis or reliability optimisation; Failure analysis, e.g. worst case scenario performance, failure mode and effects analysis [FMEA]
Abstract
The application discloses a train wheel turning method, the method provides a realization mode for matching and using a fixed car lifting machine and a mobile non-falling wheel turning machine to efficiently and conveniently finish turning operation on train wheels, namely, the improvement of turning mode is added to the fixed car lifting machine which is commonly used for integrally lifting trains, so that the fixed car lifting machine can lift a bogie and a car body of a target train to a new height upper limit which can enable the mobile non-falling wheel turning machine to normally perform turning operation on the wheels, the complex flow of performing de-knitting on the train and disassembling the bogie in advance required by independently using the mobile non-falling wheel turning machine is avoided, and turning operation on the train wheels can be performed more efficiently and conveniently. The application also discloses a train wheel turning wheel device, electronic equipment and a computer readable storage medium, which have the beneficial effects.
Description
Technical Field
The present application relates to the field of vehicle maintenance technologies, and in particular, to a method and an apparatus for turning a wheel of a train wheel, an electronic device, and a storage medium.
Background
Turning wheels refers to a mode of operation of a train wheel set (a pair of wheels), and aims to ensure that the running track of each group of wheel sets is the same and the train runs stably.
In the prior art, a fixed lathe for turning wheels is usually used, i.e., a tractor is used to draw a target train to an operation area of the fixed lathe for turning wheels of the train in the operation area. The fixed turning lathe for the non-falling wheel is arranged in the foundation pit, and the upper surface of the turning lathe is flush with the rail.
The mode not only has axle weight limitation on passing vehicles, but also needs to design a separate foundation pit for the fixed turning lathe without wheel falling, and the foundation pit has the risk of water inlet; meanwhile, a single workshop, a single track and an increased total vehicle section area are required, thereby increasing the cost.
Therefore, how to provide a better turning operation to overcome the above technical drawbacks is a problem to be solved by those skilled in the art.
Disclosure of Invention
It is an object of the present application to provide a method, apparatus, electronic device, and computer-readable storage medium for a wheel turning of a train.
To achieve the above objects, the present application provides in a first aspect a method for a wheel-turning lathe for use in a stationary fixture for use with a mobile, non-drop wheel-turning lathe, the method comprising:
entering a preset turning mode according to the received turning wheel working command, and resetting a first height upper limit of a bogie lifting unit and a second height upper limit of a body lifting unit of the fixed car lifter in the turning mode to be matched with the working height of the movable non-falling wheel lathe;
in response to successfully entering the turning mode, lifting a bogie of the target train to a first upper height limit by a bogie lifting unit;
in response to the bogie being successfully lifted to the first upper height limit, lifting the body of the target train to a second upper height limit by the body lifting unit such that the bogie lifting unit lowers the bogie to the working height;
in response to the successful raising of the car body to the second upper height limit and the successful lowering of the bogie to the working height, the mobile non-drop wheel lathe is controlled to enter a preset turning work area, and the mobile non-drop wheel lathe entering the turning work area is controlled to turn wheels in each car bogie in turn.
Optionally, before controlling the mobile lathe without turning wheels into the preset turning wheel operation area, the method further comprises:
controlling the movable non-drop wheel lathe to be in a fixed safe state without receiving control instructions before the body is not lifted to the upper limit of the second height and the bogie is not lowered to the working height; and controlling the mobile non-falling wheel lathe to enter a preset turning wheel operation area, comprising:
when the vehicle body is successfully lifted to the upper limit of the second height and the bogie is successfully lowered to the working height, generating a safe state eliminating instruction;
by issuing the safe-state-elimination command to the mobile lathe, the mobile lathe is in a mobile action state capable of receiving the control command;
issuing control commands into the turning region to the mobile lathe in the active state so that the mobile lathe enters the turning region according to the received control commands.
Optionally, controlling the mobile lathe to be in a non-control-command-accepting, stationary safety state before the body is not lifted to the second upper height limit and the bogie is not lowered to the working height, comprising:
the working state switching of the movable type non-drop wheel lathe is controlled through an electromagnetic control key, the electromagnetic control key is used for adjusting the working state of the movable type non-drop wheel lathe according to working parameters of a fixed type car lifting machine, if the car body lifting unit does not reach the upper limit of the second height and the bogie is not lowered to the working height, the electromagnetic control key is in a self-locking state, if the car body lifting unit reaches the upper limit of the second height and the bogie is lowered to the working height, the electromagnetic control key is in an unlocked state, the movable type non-drop wheel lathe is controlled to be in a safe state in response to being in the self-locking state, and the movable type non-drop wheel lathe is controlled to be in a mobile state in response to being in the unlocked state.
Optionally, before turning the wheels in each car bogie in sequence by a mobile non-wheel lathe controlling an entry turning area, the method further comprises:
controlling the body lifting unit to be in a lifting height maintaining state without receiving a control command until a turning wheel operation end notification returned by the mobile non-falling wheel lathe is received.
Optionally, a mobile non-wheel lathe for controlling the turning area to turn the wheels in each car bogie in turn comprises:
when the mobile non-drop wheel lathe completes the turning operation on the wheels in all the bogies of the current car, the working object of the mobile non-drop wheel lathe is switched from the current car to the next car only when all preset safety switching signals are received; the preset safety switching signals at least comprise first safety switching signals sent by a first management component corresponding to the current carriage and second safety switching signals sent by a second management component corresponding to the fixed car lifting jack.
Optionally, the method further includes:
determining the actual lifting height of each lifting mechanism through a pulse sensor and a code disc;
and adjusting the lifting speed of the corresponding lifting mechanism according to the difference between the actual lifting heights so as to keep the lifting height error of each lifting mechanism within a preset error range.
To achieve the above objects, the present application provides in a second aspect a wheel turning apparatus for a train wheel applied to a stationary fixture used in conjunction with a mobile non-drop wheel lathe, the apparatus comprising:
a turning mode entering unit configured to enter a preset turning mode according to the received turning wheel work command, wherein a first upper height limit of a bogie lifting unit of the turning mode lower fixed lathe and a second upper height limit of a body lifting unit are reset to a height matching with the working height of the mobile lathe;
a bogie lifting control unit configured to lift a bogie of the target train to a first upper height limit by the bogie lifting unit in response to successfully entering the turning mode;
a body lifting control unit configured to, in response to the bogie being successfully lifted to the first upper height limit, lift a body of the target train to a second upper height limit by the body lifting unit to cause the bogie lifting unit to lower the bogie to a working height;
a turning lathe control unit configured to control the mobile lathe into a predetermined turning lathe work area and to control the mobile lathe into the turning lathe work area to turn the wheels in each car truck in sequence in response to the car body being successfully lifted to the second upper height limit and the trucks being successfully lowered to the working height.
Optionally, the apparatus further comprises:
a safety state control unit configured to control the mobile lathe to be in a non-control-command-accepting, immovable safety state before the body is not lifted to the upper second height limit and the bogie is not lowered to the working height before the mobile lathe is controlled to enter the preset lathe work area; and
the turning wheel operation control unit comprises a work area entry subunit configured to control the mobile non-turning wheel lathe to enter a preset turning wheel operation area, the work area entry subunit being further configured to:
when the vehicle body is successfully lifted to the upper limit of the second height and the bogie is successfully lowered to the working height, generating a safe state eliminating instruction;
by issuing the safe-state-elimination command to the mobile lathe, the mobile lathe is in a mobile action state capable of receiving the control command;
issuing control commands into the turning region to the mobile lathe in the active state so that the mobile lathe enters the turning region according to the received control commands.
Optionally, the safety state control unit is further configured to:
the working state switching of the movable type non-drop wheel lathe is controlled through an electromagnetic control key, the electromagnetic control key is used for adjusting the working state of the movable type non-drop wheel lathe according to working parameters of a fixed type car lifting machine, if the car body lifting unit does not reach the upper limit of the second height and the bogie is not lowered to the working height, the electromagnetic control key is in a self-locking state, if the car body lifting unit reaches the upper limit of the second height and the bogie is lowered to the working height, the electromagnetic control key is in an unlocked state, the movable type non-drop wheel lathe is controlled to be in a safe state in response to being in the self-locking state, and the movable type non-drop wheel lathe is controlled to be in a mobile state in response to being in the unlocked state.
Optionally, the apparatus further comprises:
a body lift height position unit configured to control the body lift unit to a lift height maintaining state that does not receive control commands until a turning wheel operation end notification returned by the mobile non-drop wheel lathe is received before the mobile non-drop wheel lathe controlling the entering turning wheel operation area turns wheels in turn in each car bogie.
Optionally, the turning wheel operation control unit includes a turning wheel operation subunit configured to control a mobile non-drop-wheel lathe entering the turning wheel operation area to turn the wheels in each car bogie in turn, the turning wheel operation subunit being further configured to:
when the mobile non-drop wheel lathe completes the turning operation on the wheels in all the bogies of the current car, the working object of the mobile non-drop wheel lathe is switched from the current car to the next car only when all preset safety switching signals are received; the preset safety switching signals at least comprise first safety switching signals sent by a first management component corresponding to the current carriage and second safety switching signals sent by a second management component corresponding to the fixed car lifting jack.
Optionally, the apparatus further comprises:
the actual lifting height determining unit is configured to determine the actual lifting height of each lifting mechanism through the pulse sensor and the code disc;
and the lifting speed adjusting unit is configured to adjust the lifting speed of the corresponding lifting mechanism according to the difference between the actual lifting heights so as to keep the lifting height error of each lifting mechanism within a preset error range.
To achieve the above object, the present application also provides an electronic device, including:
a memory for storing a computer program;
a processor configured to implement the steps of the method of turning a train wheel as described above when the computer program is executed.
To achieve the above objects, the present application also provides a computer-readable storage medium having stored thereon a computer program that, when executed by a processor, performs the steps of the method of wheel turning as described above.
The technical scheme that this application provided provides a collocation uses fixed car lifting jack and portable not-falling wheel lathe to come high efficiency, conveniently accomplish the realization mode of turning round the wheel operation to the train wheel, through increasing the improvement of turning round the car mode to the fixed car lifting jack that is often used for putting a whole set of lifting to the train promptly, make fixed car lifting jack can be with the bogie of target train, the automobile body is lifted to the new high upper limit that can make portable not-falling wheel lathe normally turn round the wheel operation to the wheel, avoided that the required complicated flow that will separate to compile the train in advance of exclusive use portable not-falling wheel lathe, dismantle the bogie, can be more high-efficient, convenient turn round the wheel operation to the train wheel.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart of a method of turning a wheel of a train wheel provided in an embodiment of the present application;
FIG. 2 is a flow chart of another method of a train wheel turning provided by an embodiment of the present application;
fig. 3 is a block diagram of a train wheel turning device according to an embodiment of the present application.
Detailed Description
The core of the application is to provide a train wheel turning lathe method, device, electronic equipment and computer readable storage medium, and through the improvement of increasing turning mode to the fixed car lifting machine commonly used for the whole-set lifting of trains, the fixed car lifting machine can lift the bogie and the car body of a target train to a new height upper limit which can enable the mobile non-falling wheel turning lathe to normally turn the wheels, so that the complex processes of de-braiding and disassembling the bogie for the train in advance required by the independent use of the mobile non-falling wheel turning lathe are avoided, and further, the turning operation for the train wheels is more efficient and convenient through the reasonable use and matching of the fixed car lifting machine and the mobile non-falling wheel turning lathe.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a flow chart of a method for turning a train wheel according to an embodiment of the present application, which includes the following steps:
step 101: entering a preset turning mode according to the received turning wheel working command;
the turning mode is an operation mode different from the standard operation mode of the fixed car lifting machine, and is specially used for turning wheels of train wheels lifted to a proper height by matching with a movable non-drop wheel turning machine. That is, the execution body (fixed car lifter) of this embodiment, when it receives the turning work command, means to perform turning work with the mobile lathe without turning.
In contrast to the standard mode of operation, the upper first height limit of the bogie lifting units and the upper second height limit of the body lifting units of the stationary car lifter in the turning mode are reset to a height that matches the operating height of the mobile non-turning lathe, the upper first height limit and the upper second height limit being higher than the upper lifting height limit of the stationary car lifter in the standard mode of operation.
Since the lifting height of the truck lifting unit of the fixed car lifting jack is usually 1500mm (i.e. 1.5m) set by the manufacturer under normal working conditions, once the lifting height of the truck lifting unit of the fixed car lifting jack is higher than 1.5m, the operating system of the fixed car lifting jack interlocks other functions, and when the fixed car lifting jack is used with the mobile non-drop-wheel lathe, the lifting height of the truck lifting unit is more than 1.5 m. Therefore, in order to be used normally, a turning mode different from a standard working mode is added to the fixed car lifting machine, and a lifting height upper limit switching function is added in a newly added turning mode, namely, an independent lifting height upper limit is possessed under each working mode, so that the fixed car lifting machine can be matched with the movable non-falling wheel lathe in the turning mode to complete turning wheel operation.
Step 102: in response to successfully entering the turning mode, lifting a bogie of the target train to a first upper height limit by a bogie lifting unit;
on the basis of the successful entering of the executing body into the turning mode, the step is to control the bogie lifting unit of the executing body to lift the bogie of the target train to the first upper height limit.
It will be appreciated that the bogies pass through the entire train which is located in the lower part of the train car (there are usually two bogies arranged one behind the other under each train car, each bogie by having two wheel pairs arranged thereon, each wheel pair consisting of two wheels), while the lifting target of the bogie lifting unit is not actually de-compiled. Therefore, when the bogie of the target train is lifted to the first upper height limit by the bogie lifting unit, the bottom of the whole train is lifted to the first upper height limit.
Step 103: in response to the bogie being successfully lifted to the first upper height limit, lifting the body of the target train to a second upper height limit by the body lifting unit such that the bogie lifting unit lowers the bogie to the working height;
on the basis that the execution body confirms that the bogie is successfully lifted to the first upper height limit by the bogie lifting unit, the step aims to lift the body of the target train to the second upper height limit by the execution body through the body lifting unit, and in the process that the body lifting unit continues to lift the body to the second upper height limit higher than the first upper height limit, the support structure of the fixed car lifting machine supports the bogie, so that the bogie lifting unit descends to the height, and finally the bogie is lowered to the working height of turning wheels of the movable non-drop wheel lathe.
That is, the first upper height limit and the second upper height limit of step 102 and step 103 are calculated based on the fact that the fixed car lifting machine keeps the bogie at the working height in the process of sequentially passing through the bogie lifting unit and the car body lifting unit.
After the lifting height of the bogie lifting unit of the fixed car lifter is determined to reach the height required by the movable non-falling wheel lathe, the car body lifting unit is lifted to support the train so as to conveniently lower the bogie lifting unit of the fixed car lifter to enable the movable non-falling wheel lathe to enter the working area of the lathe. When the car body lifting unit is lifted to contact with a train body lifting point, the car body lifting unit is automatically stopped, and at the moment, the height of the car body lifting unit of the fixed car lifting machine is the height which is required to be lifted by the bogie lifting unit confirmed by a mobile non-drop turning lathe manufacturer and the height of a train bogie, and is about 2.7 m.
Step 104: in response to the successful raising of the car body to the second upper height limit and the successful lowering of the bogie to the working height, the mobile non-drop wheel lathe is controlled to enter a preset turning work area, and the mobile non-drop wheel lathe entering the turning work area is controlled to turn wheels in each car bogie in turn.
On the basis that the execution body confirms that the car body is successfully lifted to the second upper height limit and the bogie is successfully lowered to the working height, the step aims to control the movable lathe to enter a preset turning wheel operation area by the execution body and control the movable lathe entering the turning wheel operation area to turn the wheels in each car bogie in turn.
The reason for confirming successful elevation of the car body to the upper second height limit and successful lowering of the bogie to the operating height is that the off-site mobile lathe can enter the turning area without collision and interference with the elevation of the train by the fixed car lifting machine only if these constraints are met.
The embodiment provides a fixed car lifting jack and portable not-falling wheel lathe of collocation use high efficiency, conveniently accomplish the implementation mode of turning round the wheel operation to the train wheel, through the improvement that increases the mode of turning round the car to the fixed car lifting jack that is often used for whole set lifting to the train promptly, make fixed car lifting jack can be with the bogie of target train, the automobile body is lifted to the new height upper limit that can make portable not-falling wheel lathe normally turn round the wheel operation to the wheel, avoided the required complicated flow that will separate the work to the train in advance of turning round the bed to the train, dismantle the bogie, can be more high-efficient, convenient turn round the wheel operation to the train wheel.
Compared with the scheme of using a fixed turning machine without wheels, the scheme has no axle weight limitation and all weight is borne by a fixed car lifter, so that the equipment cost is reduced; the movable turning lathe for the non-falling wheel is not required to be arranged at the lower part of the foundation pit, so that the risk of being submerged by water is avoided; because the turning machine is matched with a fixed car lifter for use, an additional special space for the non-falling wheel turning machine is not needed, and the civil engineering cost is greatly reduced.
Referring to fig. 2, fig. 2 is a flow chart of another method for turning a train wheel according to an embodiment of the present application, which includes the following steps:
step 201: entering a preset turning mode according to the received turning wheel working command;
step 202: judging whether the turning mode is successfully entered, if so, executing step 203, otherwise, executing step 210;
step 203: lifting a bogie of the target train to a first upper height limit through a bogie lifting unit;
this step is based on the determination result of step 202 being that the turning mode is successfully entered, and is intended to lift the bogie of the target train to the first upper height limit through the bogie lifting unit by the executing body.
Step 204: judging whether the bogie is successfully lifted to the first upper height limit, if so, executing a step 205, otherwise, executing a step 210;
the step is to determine whether the truck is actually lifted to the first upper height limit by the truck lifting unit by the executing body, and select different subsequent branches according to the determination result.
Step 205: lifting the train body of the target train to a second upper height limit through the train body lifting unit so that the bogie lifting unit lowers the bogie to a working height;
this step is based on the determination result of step 204 that the bogie is successfully lifted to the first upper height limit, and is intended to lift the body of the target train to the second upper height limit through the body lifting unit by the executing body, so that the bogie lifting unit lowers the bogie to the working height.
Step 206: judging whether the vehicle body is successfully lifted to the upper limit of the second height and whether the bogie is lowered to the working height, if so, executing a step 207, otherwise, executing a step 210;
the step is to determine whether the body is lifted to the second upper height limit by the body lifting unit, and the bogie is lowered to the working height of the mobile non-drop wheel lathe due to the supporting function of the body lifting unit on the bogie during the body lifting process, and only if both conditions are met, step 207 is executed, otherwise step 210 is executed.
Step 207: generating a safe state elimination command and issuing the safe state elimination command to the mobile lathe for switching the mobile lathe from the safe state to the action state;
this step is intended to generate a safe-state-elimination command from the execution body and issue it to the mobile lathe so that the mobile lathe is switched from the safe state to the active state.
It should be noted that, in order to avoid the mobile no-drop wheel lathe being controlled incorrectly under the condition that both conditions of step 206 are not satisfied, thereby affecting the lifting operation of the fixed car lifting machine on the train, the present application also controls the mobile no-drop wheel lathe to be in a safe state without receiving control command and being fixed by the interlocking command mechanism before the car body is not lifted to the second upper height limit and the bogie is not lowered to the working height. It is also understood that the safety-state-elimination command is generated by the stationary car lifting jack only when the above-mentioned requirements are met, and that the mobile non-drop-wheel lathe switches its operating state from the safety state to the movable action state, in which it can receive control commands, only after receiving the incoming safety-state-elimination command.
One specific implementation may be: the working state switching of the movable type non-drop wheel lathe is controlled through an electromagnetic control key, the electromagnetic control key is used for adjusting the working state of the movable type non-drop wheel lathe according to working parameters of a fixed type car lifting machine, if the car body lifting unit does not reach the upper limit of the second height and the bogie is not lowered to the working height, the electromagnetic control key is in a self-locking state, if the car body lifting unit reaches the upper limit of the second height and the bogie is lowered to the working height, the electromagnetic control key is in an unlocked state, the movable type non-drop wheel lathe is controlled to be in a safe state in response to being in the self-locking state, and the movable type non-drop wheel lathe is controlled to be in a mobile state in response to being in the unlocked state.
From a specific practical aspect, the fixed car lifting machine can use an electromagnetic control key of the same type as that of the mobile non-drop wheel lathe, that is, two control power supplies of the two devices use the same key for mechanical interlocking, and the premise that the mobile non-drop wheel lathe receives the control command is set to judge whether the lifting unit of the fixed car lifting machine lifts the car body and the bogie to the height required by the mobile non-drop wheel lathe to work. In addition, a key pulling-out condition is added in the program, namely, the PLC output can lock the key knob when the above-mentioned premise is not met, so that the key cannot be pulled out, and further the movable non-falling wheel lathe is prevented from working under the condition that the fixed car lifting machine does not reach the working condition.
Step 208: issuing control commands entering the turning wheel operation area to the mobile lathe so that the mobile lathe enters the turning wheel operation area according to the received control commands;
step 209: controlling a movable non-wheel-falling lathe entering a turning operation area to turn the wheels in each carriage bogie in sequence;
on the basis of step 207, step 208 is intended to issue control commands entering the turning wheel operation area from the execution body to the mobile lathe in motion, so that the mobile lathe enters the turning wheel operation area according to the received control commands, so that the mobile lathe entering the turning wheel operation area is controlled by step 209 to turn the wheels in each car bogie in turn.
Step 210: controlling the movable non-turning lathe to be in a safe state.
This step is based on the determination result of step 202 being unsuccessful in entering the turning mode, the determination result of step 204 being unsuccessful in lifting the bogie to the first upper height limit, the determination result of step 206 being unsuccessful in lifting the car body to the second upper height limit and unsuccessful in lowering the bogie to the working height, and aims to control the mobile no-drop-wheel lathe to be in a safe state by the execution body, thereby preventing the mobile no-drop-wheel lathe from starting to work under the condition that the fixed car lifter does not reach its working condition.
Further, before controlling the mobile non-drop wheel lathe entering the turning operation area to turn the wheels in each car bogie, the body lifting unit can be controlled to be in a lifting height maintaining state without receiving a control command by the same principle until receiving a turning operation end notification returned by the mobile non-drop wheel lathe. So as to avoid influencing the normal turning wheel operation of the movable non-falling wheel turning machine due to the misoperation of the car body lifting unit.
And when the movable non-drop wheel lathe for controlling the turning area to turn the wheels in each carriage bogie in turn, the movable non-drop wheel lathe can only turn the wheels of one bogie at a time, so that the current bogie is required to be continuously replaced to other bogies and other carriages, and the train bogie can be suspended for a long time but is dangerous as a whole, so that the bogie lifting unit can be lifted in a turning mode after the movable non-drop wheel lathe completes the turning operation on a single locomotive by a certain safety scheme.
One implementation, including and not limited to, may be:
when the mobile non-drop wheel lathe completes the turning operation on the wheels in all the bogies of the current car, the working object of the mobile non-drop wheel lathe is switched from the current car to the next car only when all preset safety switching signals are received; the preset safety switching signals at least comprise first safety switching signals sent by a first management component corresponding to the current carriage and second safety switching signals sent by a second management component corresponding to the fixed car lifting jack.
Namely, the embodiment ensures security by adding a plurality of security verification signals.
On the basis of any embodiment, the fixed car lifting jack can synchronously lift the whole train at one time, but the lifting height consistency among different sections of the train is considered, and the lifting height needs to be strictly kept synchronous. One implementation, including and not limited to, is:
determining the actual lifting height of each lifting mechanism through a pulse sensor and a code disc;
and adjusting the lifting speed of the corresponding lifting mechanism according to the difference between the actual lifting heights so as to keep the lifting height error of each lifting mechanism within a preset error range.
Specifically, a synchronous detection external interface is arranged on the lifting mechanism in advance, the synchronous detection external interface adopts a mode that a code wheel is matched with a pulse sensor, the rotation state of a screw rod is detected through the pulse sensor, and after a signal is transmitted to a CPU, the CPU performs height calculation to further complete synchronous detection. Because the lifting precision of the equipment needs to reach 0.5mm in an actual application scene, a lifting column screw rod with the model number of TR65 x 8 is adopted, namely when the coded disc rotates for one circle, the lifting column is lifted for 8mm, and the coded disc and the pulse sensor are matched for one circle to output 16 signals.
Under the condition that an external interface is arranged, because the driving mode of the bogie lifting unit adopts a motor provided with a commutator and a flexible shaft to form a four-support structure, only one lifting column needs to be detected when the height is detected. Specifically, 2 pulse sensors and a double-layer coded disc with 4 grooves in each layer are respectively arranged on the upper portion of one lifting column screw rod of the bogie lifting unit and the upper portion of each lifting column screw rod of the vehicle body lifting unit. Namely, the code disc is provided with an upper layer of grooves and a lower layer of grooves, and 4 grooves are uniformly arranged at different positions of each layer. One groove of the upper layer and one groove of the lower layer are respectively provided with a pulse sensor. When the coded disc rotates by one circle, each layer of pulse sensor outputs 4 rising edge signals and 4 falling edge signals, and the two layers of pulse sensors can output 16 signals when the coded disc rotates by one circle, so that the precision requirement is met.
After the signal is transmitted to the CPU, the CPU judges the lifting of the lifting column through an internal program, and then calculates the height value to obtain the height of each lifting column.
After the CPU calculates the height of each lifting unit, all the selected lifting units are compared to obtain the maximum value and the minimum value, and the speed is regulated according to the maximum value and the minimum value.
The current lifting unit speed value is the reference speed value- (the current lifting unit height value-the lowest value) and the speed regulation coefficient, so that the lifting unit rises more slowly when exceeding the lowest value, and the synchronism is further ensured;
the current lifting unit speed value is the reference speed value- (highest value-current lifting unit height value) and the speed regulation coefficient, so that the lifting units which are more lower than the highest value descend more slowly, and the synchronism is further ensured.
In addition, when the difference value between the maximum value and the minimum value of the lifting unit during the movement exceeds the preset difference value limit value, a synchronism fault can be reported.
Because the situation is complicated and cannot be illustrated by a list, a person skilled in the art can realize that many examples exist according to the basic method principle provided by the application and the practical situation, and the protection scope of the application should be protected without enough inventive work.
Referring now to fig. 3, fig. 3 is a block diagram of a wheel turning apparatus 300 for a train, as provided by an embodiment of the present application, for use in a stationary fixture used with a mobile, non-drop wheel lathe, and may include:
a turning-mode entering unit 301 configured to enter a preset turning mode according to the received turning wheel work command, the upper first height limit of the bogie lifting unit and the upper second height limit of the body lifting unit of the turning-mode lower fixed fixture being reset to a height matching the working height of the mobile lathe;
a bogie lifting control unit 302 configured to lift a bogie of the target train to a first upper height limit by the bogie lifting unit in response to successfully entering the turning mode;
a body lifting control unit 303 configured to, in response to the bogie being successfully lifted to the first upper height limit, lift the body of the target train to a second upper height limit by the body lifting unit to cause the bogie lifting unit to lower the bogie to the working height;
a turning wheel operation control unit 304 configured to control the mobile lathe into a predetermined turning wheel operation area and to control the mobile lathe into the turning wheel operation area to turn wheel operation of the wheels in each car truck in turn in response to the car body being successfully lifted to the second upper height limit and the truck being successfully lowered to the working height.
In some other embodiments of the present application, wheel turning device 300 may further comprise:
a safety state control unit configured to control the mobile lathe to be in a non-control-command-accepting, immovable safety state before the body is not lifted to the upper second height limit and the bogie is not lowered to the working height before the mobile lathe is controlled to enter the preset lathe work area; and
turning wheel operation control unit 304 may include a work area entry subunit configured to control the mobile lathe to enter a preset turning wheel operation area, which may be further configured to:
when the vehicle body is successfully lifted to the upper limit of the second height and the bogie is successfully lowered to the working height, generating a safe state eliminating instruction;
by issuing the safe-state-elimination command to the mobile lathe, the mobile lathe is in a mobile action state capable of receiving the control command;
issuing control commands into the turning region to the mobile lathe in the active state so that the mobile lathe enters the turning region according to the received control commands.
In some other embodiments of the present application, the security state control unit may be further configured to:
the working state switching of the movable type non-drop wheel lathe is controlled through an electromagnetic control key, the electromagnetic control key is used for adjusting the working state of the movable type non-drop wheel lathe according to working parameters of a fixed type car lifting machine, if the car body lifting unit does not reach the upper limit of the second height and the bogie is not lowered to the working height, the electromagnetic control key is in a self-locking state, if the car body lifting unit reaches the upper limit of the second height and the bogie is lowered to the working height, the electromagnetic control key is in an unlocked state, the movable type non-drop wheel lathe is controlled to be in a safe state in response to being in the self-locking state, and the movable type non-drop wheel lathe is controlled to be in a mobile state in response to being in the unlocked state.
In some other embodiments of the present application, wheel turning device 300 may further comprise:
a body lift height position unit configured to control the body lift unit to a lift height maintaining state that does not receive control commands until a turning wheel operation end notification returned by the mobile non-drop wheel lathe is received before the mobile non-drop wheel lathe controlling the entering turning wheel operation area turns wheels in turn in each car bogie.
In some other embodiments of the present application, turning wheel operation control unit 304 may include a turning wheel operation subunit configured to control a mobile non-drop turning into a turning wheel operation area to turn a wheel in each car truck, the turning wheel operation subunit may be further configured to:
when the mobile non-drop wheel lathe completes the turning operation on the wheels in all the bogies of the current car, the working object of the mobile non-drop wheel lathe is switched from the current car to the next car only when all preset safety switching signals are received; the preset safety switching signals at least comprise first safety switching signals sent by a first management component corresponding to the current carriage and second safety switching signals sent by a second management component corresponding to the fixed car lifting jack.
In some other embodiments of the present application, wheel turning device 300 may further comprise:
the actual lifting height determining unit is configured to determine the actual lifting height of each lifting mechanism through the pulse sensor and the code disc;
and the lifting speed adjusting unit is configured to adjust the lifting speed of the corresponding lifting mechanism according to the difference between the actual lifting heights so as to keep the lifting height error of each lifting mechanism within a preset error range.
The present application further provides an electronic device, which may include a memory and a processor, where the memory stores a computer program, and the processor may implement the steps provided in the foregoing embodiments when calling the computer program in the memory.
The present application also provides a computer-readable storage medium, on which a computer program is stored, which, when executed by an execution terminal or processor, can implement the steps provided by the above-mentioned embodiments. The storage medium may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It will be apparent to those skilled in the art that various changes and modifications can be made in the present invention without departing from the principles of the invention, and these changes and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A method for turning a wheel of a train, for use in a stationary car lifting machine used in conjunction with a mobile non-drop wheel lathe, comprising:
entering a preset turning mode according to the received turning wheel working command, wherein a first height upper limit of a bogie lifting unit and a second height upper limit of a body lifting unit of the fixed car lifting machine in the turning mode are reset to be matched with the working height of the mobile non-falling wheel lathe;
in response to successfully entering the turning mode, lifting a bogie of a target train to the first upper height limit by the bogie lifting unit;
in response to the bogie being successfully lifted to the first upper height limit, lifting a body of the target train to the second upper height limit by the body lifting unit to cause the bogie lifting unit to lower the bogie to the working height;
in response to the body being successfully lifted to the second upper height limit and the bogie being successfully lowered to the working height, controlling the mobile non-drop lathe to enter a preset turning work area, and controlling the mobile non-drop lathe entering the turning work area to turn wheels in each car bogie in sequence.
2. The method of claim 1, wherein prior to controlling the mobile non-drop wheel lathe into a preset wheel work area, further comprising:
controlling the mobile lathe to be in a non-control-command-accepting, immovable, safe state before the body is not lifted to the second upper height limit and the bogie is not lowered to the working height; and
the controlling the movable non-falling wheel lathe to enter a preset turning wheel operation area comprises the following steps:
when the vehicle body is successfully lifted to the second upper height limit and the bogie is successfully lowered to the working height, generating a safety state eliminating instruction;
placing the mobile lathe in a mobile action state capable of receiving control commands by issuing the safe state elimination commands to the mobile lathe;
issuing control commands into the turning wheel operation area to the mobile lathe in the action state so that the mobile lathe enters the turning wheel operation area according to the received control commands.
3. The method of claim 2, wherein controlling the mobile, non-turning lathe to a non-control-command, stationary, safe state before the body is not lifted to the second upper height limit and the bogie is not lowered to the working height comprises:
control through the electromagnetic type control key the operating condition of portable not-falling wheel lathe switches, the electromagnetic type control key is used for the basis the working parameter adjustment of fixed car lifting machine the operating condition of portable not-falling wheel lathe, if the automobile body lifts the unit and does not reach the high upper limit of second the bogie does not reduce to the working height, the electromagnetic type control key is in auto-lock state, if the automobile body lifts the unit and reaches the high upper limit of second the bogie reduces to the working height, the electromagnetic type control key is in not locking the state, in response to being in auto-lock state, control portable not-falling wheel lathe is in the security status, in response to being in not locking the state, control portable not-falling wheel lathe is in action state.
4. The method of claim 1, wherein prior to controlling a mobile, non-drop-wheel lathe entering the turning wheel operation area to turn wheels in each car truck in turn, further comprising:
controlling the body lifting unit to be in a lifting height maintaining state without receiving control commands until a turning wheel operation end notification returned by the mobile non-drop wheel lathe is received.
5. The method of claim 1, wherein the controlling a mobile, non-stub lathe into the turning area turns wheels in turn in each car truck, comprising:
switching the work object of the mobile lathe from the current car to the next car only when all preset safety switching signals are received, in response to the mobile lathe completing a turning operation on the wheels in all the trucks of the current car; and all the preset safety switching signals at least comprise a first safety switching signal sent by a first management component corresponding to the current carriage and a second safety switching signal sent by a second management component corresponding to the fixed car lifting jack.
6. The method of any of claims 1-5, further comprising:
determining the actual lifting height of each lifting mechanism through a pulse sensor and a code disc;
and adjusting the lifting speed of the corresponding lifting mechanism according to the difference between the actual lifting heights so as to keep the lifting height error of each lifting mechanism within a preset error range.
7. A wheel turning device for a train, applied to a fixed car lifting jack used in conjunction with a mobile non-falling wheel turning machine, comprising:
a turning mode entering unit configured to enter a preset turning mode according to the received turning wheel work command, wherein a first upper height limit of a bogie lifting unit of the fixed lathe and a second upper height limit of a body lifting unit of the fixed lathe in the turning mode are reset to a height matching with a work height of the mobile lathe;
a bogie lifting control unit configured to lift a bogie of a target train to the first upper height limit by the bogie lifting unit in response to successfully entering the turning mode;
a body lifting control unit configured to, in response to the bogie being successfully lifted to the first upper height limit, lift a body of the target train to the second upper height limit by the body lifting unit to cause the bogie lifting unit to lower the bogie to the working height;
a turning lathe control unit configured to control the mobile non-drop turning lathe to enter a preset turning lathe work area and to control the mobile non-drop turning lathe entering the turning lathe work area to turn the wheels in each car bogie in turn in response to the car body being successfully lifted to the second upper height limit and the bogie being successfully lowered to the working height.
8. The apparatus of claim 7, further comprising:
a safety state control unit configured to control the mobile lathe to be in a non-control-command-accepted, stationary safety state before the body is not lifted to the second upper height limit and the bogie is not lowered to the working height, before controlling the mobile lathe to enter a preset lathe work area; and
the turning wheel operation control unit comprises a working area entry subunit configured to control the mobile non-turning wheel lathe to enter a preset turning wheel operation area, the working area entry subunit being further configured to:
when the vehicle body is successfully lifted to the second upper height limit and the bogie is successfully lowered to the working height, generating a safety state eliminating instruction;
placing the mobile lathe in a mobile action state capable of receiving control commands by issuing the safe state elimination commands to the mobile lathe;
issuing control commands into the turning wheel operation area to the mobile lathe in the action state so that the mobile lathe enters the turning wheel operation area according to the received control commands.
9. An electronic device, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the method of a train wheel turning method as claimed in any one of claims 1 to 6 when executing said computer program.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program that, when executed by a processor, performs the steps of the method of a wheel turning method as recited in any one of claims 1-6.
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| CN202111363064.4A CN114065428B (en) | 2021-11-17 | 2021-11-17 | Turning wheel method and device for train wheel, electronic equipment and storage medium |
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| CN202111363064.4A CN114065428B (en) | 2021-11-17 | 2021-11-17 | Turning wheel method and device for train wheel, electronic equipment and storage medium |
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| CN114065428B CN114065428B (en) | 2022-09-02 |
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