WO2024067395A1 - Procédé pour déterminer un mode de défaillance de blocage de commutation d'une tige d'actionnement d'une machine de commutation - Google Patents

Procédé pour déterminer un mode de défaillance de blocage de commutation d'une tige d'actionnement d'une machine de commutation Download PDF

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Publication number
WO2024067395A1
WO2024067395A1 PCT/CN2023/120675 CN2023120675W WO2024067395A1 WO 2024067395 A1 WO2024067395 A1 WO 2024067395A1 CN 2023120675 W CN2023120675 W CN 2023120675W WO 2024067395 A1 WO2024067395 A1 WO 2024067395A1
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WO
WIPO (PCT)
Prior art keywords
switch machine
threshold
jam
switch
stroke
Prior art date
Application number
PCT/CN2023/120675
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English (en)
Chinese (zh)
Inventor
丁召荣
黄晨涛
李渊
段涵
刘义健
Original Assignee
西安铁路信号有限责任公司
通号(西安)轨道交通工业集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 西安铁路信号有限责任公司, 通号(西安)轨道交通工业集团有限公司 filed Critical 西安铁路信号有限责任公司
Publication of WO2024067395A1 publication Critical patent/WO2024067395A1/fr

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/06Electric devices for operating points or scotch-blocks, e.g. using electromotive driving means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/10Locking mechanisms for points; Means for indicating the setting of points
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant

Definitions

  • the present invention belongs to a turnout switching equipment auxiliary system in the field of rail transit, and relates to a method for judging a switch machine actuating rod switching jam fault mode. According to the parameters and status of the switch machine actuating rod, the cause of the switch machine switching jam is judged, and maintenance personnel are guided to handle it.
  • the switch machine is used to switch and lock the turnout.
  • the switch machine's operating rod When the switch machine's operating rod is stuck, its function of switching the turnout fails.
  • statistical data show that due to various reasons, the failure of the switch machine's operating rod to switch is blocked and the turnout cannot be switched accounts for a high proportion of turnout failures.
  • the switch operating rod When the switch operating rod is stuck and cannot switch the turnout, the train will not be able to pass the turnout as planned, thus delaying the operation. Usually, maintenance personnel are required to handle it urgently to minimize delays, reduce economic losses, and reduce social impact.
  • the switch since the switch is a remote-controlled device, when it gets stuck, the location of the jam is unknown, the cause of the jam is unknown, and it is not even known whether it is a jam (the fault manifestation is only the lack of positioning indication or the lack of reverse position indication) or other faults that cause the lack of positioning indication or reverse position indication. Therefore, when handling the fault, it is necessary to check each item one by one, which may make the fault handling take a long time. If it can be determined that the switch operating rod is stuck when the fault occurs, and the location of the jam can be clearly identified, and then a preliminary fault cause and solution are determined based on the fault mode, the fault handling will save time and effort.
  • turnout is an internal locking system, there is no external locking unlocking and locking process, whether in the process of extending the operating rod of the switch machine or in the process of pulling the operating rod in,
  • the state of the switch machine can be judged according to the current stroke of the operating rod, and then according to the state of the switch machine when the operating rod is stuck or blocked, combined with other information, the cause of the blocking of the operating rod can be analyzed and judged.
  • the fault location can be determined and the repair and maintenance area can be circled. Combined with other information, the cause of the fault can be analyzed as soon as possible and the solution can be determined, which is conducive to maintenance personnel to quickly troubleshoot the fault and shorten the fault handling time.
  • the purpose of the present invention is to provide a method for judging the fault mode of the switch machine action rod conversion jam, so as to identify the abnormal state of the switch machine action rod conversion jam or jam, and then determine the location and cause of the switch machine action rod conversion jam or jam, guide maintenance personnel to reach the fault location as soon as possible, accurately handle the fault, and improve the fault handling efficiency.
  • the technical solution of the present invention is to provide a method for judging the fault mode of the switching jam of the actuating rod of a switch machine, which is characterized by: selecting the motor of the switch machine, the active parts of the switching locking mechanism, and the actuating rod of the switch machine, which are respectively recorded as the motor, the active parts, and the actuating rod, monitoring the current I or the rotation speed n of the motor, the speed (rotation speed) V of the active parts, and the displacement S of the actuating rod, and using a timer to count from the start of the switching of the switch machine, recording the switching time t of the switch machine, using the current I or the rotation speed n of the motor and the speed (rotation speed) V of the active parts to judge whether the switch machine is in the state of the switching jam of the actuating rod, when the switch machine is in the state of the switching jam of the actuating rod, using the displacement S of the actuating rod to judge the fault mode of the actuating rod jam, and outputting alarm information and maintenance guidance information
  • Step 1 Read in I threshold , n threshold , t threshold 1 , t threshold 2 , V threshold , and displacement change value C;
  • Step 2 Clear the timer and array D
  • Step 5 Read in S, V, I, n;
  • Step 9 If t ⁇ tthreshold1 , the conversion is normal; if tthreshold1 ⁇ t ⁇ tthreshold2 , the conversion is stuck, and the stuck position judgment subroutine is executed; otherwise, the conversion is blocked, and the blocked position judgment subroutine is executed;
  • the stutter position determination subroutine is performed according to the following steps:
  • Step 1 Read in the stroke parameter L of the action rod and the motion judgment constant ⁇ ;
  • Step 2 Check all D j with 2 ⁇ j ⁇ k, determine the cause and location of the jam, and classify and count them. After checking all D j with 2 ⁇ j ⁇ k, end the program;
  • the blocking position determination subroutine is performed according to the following steps:
  • Step 1 Read in the stroke parameter L of the action rod and the motion judgment constant ⁇ ;
  • Step 2 Check the ⁇ S value to determine the cause and location of the jam
  • the switch machine drives the movable part of the turnout to switch (movement of the action rod) and a jam occurs, and the program ends.
  • the advantages of the present invention are that after the switch machine starts to switch, the switching time is timed. During the switching process of the switch machine, it is preliminarily determined whether its action rod is stuck, and the stuck position is recorded in an array. After the switch machine is completed or the switching time exceeds the limit value, it is determined whether the switching process is stuck or whether it is blocked and cannot be completed according to the switching time. When the switch machine is stuck, the specific location where the jam occurs is determined according to the data in the stuck position recording array. When the switch machine is stuck, the switch machine action rod conversion jam failure mode is determined according to the final stop position of the switch machine action rod or the stroke of the switching process. Finally, it helps maintenance personnel to intervene in maintenance in time, prevent the occurrence of jam failures, speed up the location and disposal of jam failures, thereby improving the reliability of the switch machine and reducing various effects and losses caused by the conversion jam of the switch machine action rod.
  • Fig. 1 is a main flow chart of the detection method of the present invention
  • FIG2 is a flow chart of a subroutine for determining a stuck position
  • FIG. 3 is a flow chart of a blocking position determination subroutine.
  • L indicates that the limit position where the action rod starts to move is the starting point of the stroke, and the other limit position where the action rod stops moving is the end point of the stroke.
  • L lock It means the position of the actuating rod when entering the locking state from the external locking state is the starting point of the stroke, and the position of the actuating rod when it moves to the limit position and stops is the end point of the stroke. The stroke of the actuating rod during this process.
  • S initial indicates the displacement value corresponding to the extreme position when the action rod starts to move
  • ABS() means taking the absolute value of the value in brackets
  • ⁇ S It means that the current position of the action rod is the end point of the stroke, and the limit position when the action rod starts to move is the starting point of the stroke.
  • represents the selected constant used to replace zero, its value is very small, but should be greater than the detection coefficient
  • the jitter value is set to reduce misjudgment
  • n indicates the detected speed value of the motor in the switch machine or the detected speed value of other parts which is linearly related to its speed;
  • V indicates the speed or rotation speed detection value of the active parts in the switch machine locking mechanism
  • t indicates that the timer is used to count from the start of the switch machine switching to the current recorded switch machine switching time
  • I threshold represents the current threshold for judging the working state of the motor.
  • I>I threshold the motor is determined to be powered on and the switch machine starts to switch;
  • nthreshold represents the speed threshold for judging the working state of the switch machine. When n> nthreshold , it is determined that the switch machine starts to switch;
  • tthreshold1 represents the time limit threshold for judging whether the switch machine has completed the conversion normally.
  • the switch machine conversion process is normal and no obvious action rod jam occurs;
  • tthreshold2 indicates the maximum time limit allowed for the switch machine conversion process. After the timer stops timing, if t ⁇ tthreshold2 , the switch machine has not completed the conversion within the maximum time limit;
  • V threshold indicates the speed threshold of the action rod for judging the switching jam of the switch machine, which is preset based on experience and data, or calculated based on the detected speed n;
  • C represents the difference value of the action rod displacement change, which is a preset constant. Its purpose is to prevent the action rod stuck position record array from being too large. The action rod stuck position is recorded only after the action rod displacement is greater than C relative to the previous stuck position.
  • D represents the action rod stroke record array when the jam occurs.
  • D j represents the j-th element of array D
  • K represents the number of elements in array D.
  • the ZD9/ZDJ9 switch machine with internal locking turnout is taken as the implementation object.
  • the push plate sleeve is the active part of the conversion locking mechanism. Since the push plate sleeve and the action plate are fixed as one, the displacement of the action plate is monitored and the speed is calculated, which is recorded as the active part speed V. The speed ratio of the gear shaft and the motor shaft is fixed, and the gear shaft speed is monitored. The motor speed is calculated based on this, or the motor working current is monitored, which are recorded as the motor speed n and the motor working current I respectively. The displacement of the action rod is monitored and recorded as the action rod displacement S.
  • Step 1 Read in I threshold , n threshold , t threshold 1 , t threshold 2 , V threshold , and displacement change value C;
  • Step 2 Clear the timer and array D
  • Step 5 Read in S, V, I, n;
  • Step 9 If t ⁇ tthreshold1 , the conversion is normal; if tthreshold1 ⁇ t ⁇ tthreshold2 , the conversion is stuck, and the stuck position judgment subroutine is executed; otherwise, the conversion is blocked, and the blocked position judgment subroutine is executed;
  • the stuttering position determination subroutine is performed according to the following steps:
  • Step 1 Read in the stroke parameter L of the action rod and the motion judgment constant ⁇ ;
  • Step 4 If j>k, end the program
  • Step 5 If D j ⁇ , output "the switch machine has been stuck during the unlocking process"; otherwise, if ⁇ D j ⁇ L- ⁇ , output "the switch machine has been stuck during the conversion (movement of the action rod) of the movable part of the turnout”; otherwise, output "the switch machine has been stuck during the locking process”;
  • Step 6 Return to step 3;
  • the blocking position determination subroutine is performed according to the following steps:
  • Step 1 Read in the stroke parameter L of the action rod and the motion judgment constant ⁇ ;
  • Step 2 If ⁇ S ⁇ , output "The switch machine is stuck during the unlocking process. Stop", end the program;
  • Step 3 If ⁇ D j ⁇ L- ⁇ , output "the switch machine drives the movable part of the turnout to switch (movement of the action rod) and a jam occurs during the process", and end the program;
  • Step 4 Output "The switch machine is stuck during the internal locking process" and end the program.
  • the ZD9/ZDJ9 switch machine with external locking turnout is used as the implementation object.
  • the actuating rod starts to move.
  • the stroke of the actuating rod is zero.
  • the close contact rail begins to move toward the repulsion process.
  • the stroke of the actuating rod is L release .
  • the stroke of the actuating rod is L lock . The rest is the same as Example 1 and will not be described in detail.
  • the jam position determination subroutine is performed as follows:
  • Step 1 Read in the stroke parameter L of the action rod and the motion judgment constant ⁇ ;
  • Step 2 Read in external locking parameters L solution and L lock ;
  • Step 5 If j>k, end the program
  • Step 6 If D j ⁇ , output “the switch machine was stuck during the unlocking process inside the machine”; otherwise, if ⁇ D j ⁇ L solution , output “the switch machine drove the turnout to be stuck during the unlocking process”; otherwise, if L solution ⁇ D j ⁇ LL lock , output “the switch machine drove the turnout to be stuck during the unlocking process”.
  • Step 7 Return to step 4.
  • the blocking position determination subroutine is performed according to the following steps:
  • Step 1 Read in the stroke parameter L of the action rod and the motion judgment constant ⁇ ;
  • Step 2 Read in external locking parameters L solution and L lock ;
  • Step 3 If ⁇ S ⁇ , output "the switch machine is stuck during the unlocking process inside the machine” and end the program;
  • Step 4 If ⁇ S ⁇ L , output "stuck during the unlocking process of the external lock of the switch machine drive", and end the program;
  • Step 5 If L solution ⁇ ⁇ S ⁇ LL lock , output "After the external lock is unlocked, the switch machine drives the turnout during the conversion process and jams", and end the program;
  • Step 6 If LL lock ⁇ ⁇ S ⁇ L- ⁇ , output "the switch machine drives the external lock to be blocked during the locking process" and end the program;
  • Step 7 Output "The switch machine is stuck during the internal locking process" and end the program.
  • the ZD6 switch machine with internal locking turnout is used as the implementation object.
  • the locking gear is the active part of the conversion locking mechanism. Since the locking gear and the main shaft are fixed as one, the main shaft rotation angle is monitored and its speed is calculated, which is recorded as the active part speed V.
  • the motor shaft speed is directly monitored or the speed is calculated after monitoring its rotation angle, or the motor shaft speed is monitored.
  • the working current of the motor is recorded as the motor speed n and the motor working current I respectively, and the displacement of the action rod is monitored and recorded as the action rod displacement S (the initial displacement is zero).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

L'invention concerne un procédé permettant de déterminer un mode de défaillance de blocage de commutation d'une tige d'actionnement d'une machine de commutation. Une fois qu'une machine de commutation commence à commuter, sa durée de commutation est synchronisée ; au cours du processus de commutation de la machine de commutation, il est déterminé au préalable si le mouvement d'une tige d'actionnement est irrégulier, et une position d'irrégularité est enregistrée dans un tableau ; une fois que la commutation de la machine de commutation est terminée ou que la durée de commutation dépasse une valeur limite, la durée de commutation de la machine de commutation permet de déterminer si le processus de commutation est irrégulier ou si la commutation ne peut pas être effectuée en raison d'un blocage ; lorsqu'une irrégularité se produit dans la machine de commutation, les données dans le tableau sont enregistrées en fonction de la position d'irrégularité, et une position spécifique à laquelle l'irrégularité se produit est déterminée ; lorsqu'un blocage se produit dans la machine de commutation, le mode de défaillance de blocage de commutation de la tige d'actionnement de la machine de commutation est déterminé en fonction d'une position d'arrêt final de la tige d'actionnement de la machine de commutation ou d'une course de commutation afin de permettre au personnel de maintenance d'intervenir à temps, d'empêcher l'apparition d'une défaillance de blocage et d'accélérer le positionnement et la gestion d'une défaillance de blocage, ce qui permet d'améliorer la fiabilité de la machine de commutation et de réduire les diverses influences et pertes provoquées par le blocage de commutation de la tige d'actionnement de la machine de commutation.
PCT/CN2023/120675 2022-09-29 2023-09-22 Procédé pour déterminer un mode de défaillance de blocage de commutation d'une tige d'actionnement d'une machine de commutation WO2024067395A1 (fr)

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CN202211197149.4 2022-09-29
CN202211197149.4A CN115635988A (zh) 2022-09-29 2022-09-29 一种转辙机动作杆转换卡阻故障模式的判断方法

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CN115635988A (zh) * 2022-09-29 2023-01-24 西安铁路信号有限责任公司 一种转辙机动作杆转换卡阻故障模式的判断方法

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JP2016084076A (ja) * 2014-10-28 2016-05-19 公益財団法人鉄道総合技術研究所 転てつ機の動作状態の監視方法および監視装置
CN113415311A (zh) * 2021-05-31 2021-09-21 西安铁路信号有限责任公司 一种转辙机状态的识别判定方法
CN113581249A (zh) * 2021-07-15 2021-11-02 中国铁道科学研究院集团有限公司通信信号研究所 基于位移传感器组的道岔转辙机位置“故障-安全”表示装置及其方法
CN113581253A (zh) * 2021-07-26 2021-11-02 中国铁路兰州局集团有限公司 电空道岔转辙机的状态确定方法和装置
CN114485515A (zh) * 2022-01-15 2022-05-13 西安铁路信号有限责任公司 一种转辙机动接点转换故障的检测方法及装置
CN115635988A (zh) * 2022-09-29 2023-01-24 西安铁路信号有限责任公司 一种转辙机动作杆转换卡阻故障模式的判断方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009083577A (ja) * 2007-09-28 2009-04-23 Sankosha Co Ltd 電気転てつ機の異常検知方法およびその装置
JP2016084076A (ja) * 2014-10-28 2016-05-19 公益財団法人鉄道総合技術研究所 転てつ機の動作状態の監視方法および監視装置
CN113415311A (zh) * 2021-05-31 2021-09-21 西安铁路信号有限责任公司 一种转辙机状态的识别判定方法
CN113581249A (zh) * 2021-07-15 2021-11-02 中国铁道科学研究院集团有限公司通信信号研究所 基于位移传感器组的道岔转辙机位置“故障-安全”表示装置及其方法
CN113581253A (zh) * 2021-07-26 2021-11-02 中国铁路兰州局集团有限公司 电空道岔转辙机的状态确定方法和装置
CN114485515A (zh) * 2022-01-15 2022-05-13 西安铁路信号有限责任公司 一种转辙机动接点转换故障的检测方法及装置
CN115635988A (zh) * 2022-09-29 2023-01-24 西安铁路信号有限责任公司 一种转辙机动作杆转换卡阻故障模式的判断方法

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