阅读说明：本技术 一种转辙机状态的识别判定方法 (Identification and judgment method for switch machine state ) 是由 丁召荣 皮立新 黄晨涛 唐一鸣 李渊 马振人 段涵 金鑫 梁栋 于 2021-05-31 设计创作，主要内容包括：本发明涉及一种转辙机状态的识别判定方法,它根据驱动零件的速度、电气接点控制零件及拉伸状态零件的位移或角位移可以辨别转辙机所处的状态,并且与电动操作还是手摇操作无关,适应范围广,判断结果准确,判断方法简单,不但可以判断转辙机状态,用来高效执行监测程序,还可以识别电气锁闭(位置状态表示)与机械锁闭状态位置的不匹配,进而识别错误表示,提高转辙机的安全性。(The invention relates to a method for identifying and judging the state of a switch machine, which can identify the state of the switch machine according to the speed of a driving part, the displacement or angular displacement of an electric contact control part and a stretching state part, has no relation with electric operation or hand-cranking operation, has wide application range, accurate judgment result and simple judgment method, can judge the state of the switch machine, is used for efficiently executing a monitoring program, and can identify the mismatching of the positions of an electric locking state (position state representation) and a mechanical locking state, thereby identifying error representation and improving the safety of the switch machine.)

1. A method for identifying and judging the state of a switch machine is characterized in that:

selecting a part at the input end of a switch machine motor shaft or a conversion locking mechanism as a driving part, such as a ZD6 motor shaft (2-3), a ZD9/ZDJ9 motor shaft (1-2) or a gear shaft (1-1) driven by the motor shaft in a speed reducer, wherein the speed or the rotating speed of the driving part is recorded as V;

selecting direct or indirect control parts for switching on and off of electrical contacts of a switch machine as electrical contact control parts, wherein two electrical contact control parts are usually adopted, the two electrical contact control parts are respectively a first electrical contact control part and a second electrical contact control part, such as a left movable contact shaft (1-4) and a right movable contact shaft (1-3) or a left crank arm (2-4) and a right crank arm (2-3), and the displacement or angular displacement of the first electrical contact control part is recorded as R_{Left side is connected}And the second electrical contact control part displacement or angular displacement is denoted as R_{Right connector}；

Selecting a part capable of judging the drawing-in or extending-out state of the switch machine as a drawing-state part, such as a ZD9/ZDJ9 action rod (1-7), a ZD6 action rod (2-1), a rack block (2-5) or an action plate (1-6), and recording the displacement of the drawing-state part as Y;

the method comprises the steps of monitoring the displacement or the rotation angle of a selected part, calculating parameters such as the speed or the rotation speed of the selected part, selecting a plurality of switch machine state judgment threshold values according to the structure and the parameter characteristics of a specific switch machine, comparing the values obtained through monitoring or calculation with the judgment threshold values, judging the state of the switch machine and outputting state information.

2. The method of claim 1, wherein the method further comprises: the characteristics according to the structure and parameters of the specific switch machine comprise: the selected plurality of switch machine state decision thresholds includes a switch machine changeover state decision threshold V_Threshold(s)Electric locking judgment threshold value R_{Watch threshold}And R_{Dynamic threshold}Pull-in decision threshold L_Threshold(s)Out of judgment threshold S_Threshold(s)；

When the speed V of the driving part is greater than the judgment threshold V of the switching state of the switch machine_Threshold(s)When the switch machine is in a mechanical conversion state;

without loss of generality, the displacement or angular displacement R of the first electrical contact control element_{Left side is connected}And displacement or angular displacement R of the second electrical contact-controlling part_{Right connector}Is the direction from the contact of the closing action to the contact of the closing indication, R is_{Dynamic threshold}＜R_{Watch threshold}And R is_{Left side is connected}＜R_{Dynamic threshold}Or R_{Right connector}＜R_{Dynamic threshold}A time-reliable closing of the actuating contact, R_{Left side is connected}＞R_{Watch threshold}Or R_{Right connector}＞R_{Watch threshold}When it is reliably turned on, it indicates that the contact is on_{Left side is connected}＜R_{Dynamic threshold}While R is_{Right connector}＞R_{Watch threshold}Or R_{Right connector}＜R_{Dynamic threshold}While R is_{Left side is connected}＞R_{Watch threshold}When the switch is mechanically and electrically locked, R is set_{Left side is connected}And R_{Are connected at the right side respectively}And R_{Watch threshold}And R_{Dynamic threshold}Comparing and judging whether the switch machine is electrically locked;

without loss of generality, if the positive displacement direction of the part in the stretching state corresponds to the movement direction of the action rod of the switch machine from drawing-in to extending-out, the displacement Y of the part in the stretching state is smaller than the drawing-in judgment threshold value L_Threshold(s)When the switch machine is in a drawing-in state, the displacement Y of the part in the drawing state is larger than a stretching judgment threshold value S_Threshold(s)When the switch is in an extending state, the displacement value Y of the part in a stretching state is respectively compared with a pulling-in judgment threshold value L_Threshold(s)Out of judgment threshold S_Threshold(s)And comparing to judge whether the switch machine is in a drawing-in state or a stretching-out state.

3. The method of claim 1, wherein the method further comprises: the judgment of the state of the switch machine and the output of the state information are carried out according to the following steps:

the method comprises the following steps: obtaining a switch machine conversion judgment threshold value V_Threshold(s)Electric locking judgment threshold value R_{Watch threshold}And R_{Dynamic threshold}Pull-in decision threshold L_Threshold(s)Out of judgment threshold S_Threshold(s)；

Step two: clearing R1 and R2 for recording the displacement or angular displacement of the driving part;

step three: obtaining the current driving part displacement or angular displacement detection value R_ToothThe value is given to R1;

step four: timing the machine time t1, and acquiring the displacement or angular displacement detection value R of the current driving part_ToothThe value is given to R2;

step (ii) ofFifthly: calculating the speed or rotating speed V of the driving part within t1, if V > V_Threshold(s)When the switch machine is in the switching state, the value of R2 is given to R1, and the step four is returned; otherwise, executing the next step;

step six: timing t2 (t 2 time ensures that the electric contact is converted), and obtaining the displacement or angular displacement R of the first electric contact control part_{Left side is connected}And displacement or angular displacement R of the second electrical contact-controlling part_{Right connector}A numerical value;

step seven: if R is_{Left side is connected}＞R_{Watch threshold}While R is_{Right connector}＜R_{Dynamic threshold}Or R_{Right connector}＞R_{Watch threshold}While R is_{Left side is connected}＜R_{Dynamic threshold}If so, the switch machine is electrically locked, otherwise, the switch machine is in a non-representation state;

step eight: if the switch machine is electrically locked, obtaining the displacement value Y of the part in the stretching state, if Y is less than L_Threshold(s)The switch is in the pull-in and locked state, if Y > S_Threshold(s)The point switch is in an extending and locking state; and returning to the third step.

Technical Field

The invention belongs to a turnout switching equipment auxiliary system in the field of rail transit, and relates to a method for identifying and judging the state of a point switch, which is used for detecting and processing corresponding parameters according to the state of the point switch and executing different monitoring programs.

Background

Since the switch machine is installed in the turnout area and cannot be randomly approached at ordinary times, the state of the equipment is difficult to master at any time, and the requirement for monitoring the state, parameters and the like of the switch machine is strong in recent years in order to improve the reliability of the equipment and improve the maintenance efficiency. The switch machine has the states of locking, no indication (quarto) and the like in conversion, and parameters needing attention in each state are different, so that the working states are distinguished when the switch machine is monitored, different parameters are monitored in different working states, and the monitoring process is executed according to the working states. Therefore, the distinguishing and identifying of the working state of the point switch is a precondition for monitoring, and the parameters needing to be concerned can be efficiently monitored only by correctly distinguishing and identifying the working state of the point switch.

The switch machine is powered on or rotated by hand, or the gear shaft is rotated by hand to drive the conversion locking mechanism to realize the unlocking, conversion and locking of the mechanical structure of the switch machine, before the mechanical unlocking of the switch machine, the contact conversion control part controls the electrical contact to disconnect the original indicating circuit, after the switch machine is locked, the contact conversion control part controls the electrical contact to connect the new indicating circuit, when the motor or the gear shaft of the switch machine starts to rotate, the switch machine enters the conversion state, when the conversion of the switching locking mechanism of the switch machine is completed and the mechanical locking is carried out, and the electrical contact is switched to connect the new indicating circuit, the switch machine enters the locking state, the locking state of the switch machine can be subdivided into a pulling locking state and a stretching locking state according to the locking position, the action rod of the switch machine stretches out and is locked into a stretching locking state, and the action rod of the switch machine draws in and is locked into a locking state. When the mechanical locking of the switch machine is completed, the motor or the gear shaft stops rotating, but the electric contact is not switched or the switching angle is insufficient, and a new indication circuit is not switched on, the switch machine is in a non-indication (quarto) state.

Normally, the switch machine can be judged whether to be in the electric conversion or not by monitoring the working current by using a current sensor, but the conversion state can not be judged when the switch machine is in the hand-operated conversion, moreover, the current sensor can not be used to determine whether the switch machine is normally locked, when the switch machine can not complete the conversion due to failure and stops rotating due to power failure, monitoring of other parameters is required to assist in determining whether the switch machine is properly locked, e.g., whether the circuit is on, or to determine the switch energization duration, etc., and the operating current of the switch machine is typically monitored in the machine room, the situation that the similar sensors are repeatedly arranged exists when the current sensor is additionally arranged in the point switch, and the situation that the point switch is manually checked or manually operated exists, so that the current sensor cannot correctly identify the conversion of the point switch.

It can be seen that there is a limitation to using current sensors and other auxiliary parameters to determine the state of the switch machine.

Disclosure of Invention

The invention aims to provide a method for identifying and judging the state of a switch machine, so as to execute different monitoring processes according to the working state of the switch machine, reduce the complexity of the monitoring processes and improve the monitoring efficiency.

The technical scheme of the invention is as follows: relates to a method for identifying and judging the state of a switch machine, which is characterized by comprising the following steps: selecting one part at the input end of a switch machine conversion locking mechanism as a driving part, such as a motor shaft or a gear shaft, selecting a direct or indirect control part for switching on and off an electrical contact of a switch machine as an electrical contact control part, wherein two electrical contact control parts are generally respectively a first electrical contact control part and a second electrical contact control part, selecting a switch machine action rod or other parts capable of judging the drawing-in or extending-out state of the switch machine as a stretching state part, such as a push plate sleeve or an action plate of a ZD9/ZDJ9 switch machine, an oil cylinder of the electro-hydraulic switch machine, monitoring the displacement or rotation angle of the driving part, calculating the speed or rotation speed of the driving part, monitoring the displacement or rotation angle of the first electrical contact control part and the second electrical contact control part, monitoring the displacement of the stretching state part, and selecting a switch machine conversion judgment threshold according to the characteristics of a specific machine type, an electrical locking judgment threshold value, a pull-in judgment threshold value and a pull-out judgment threshold value, the switch machine switching judgment threshold value is used for judging whether the switch machine is in mechanical switching according to the speed of the driving part, when the speed of the driving part is larger than the switch machine switching judgment threshold value, the switch machine is in a mechanical switching state, the electrical locking judgment threshold value is used for judging whether the switch machine is electrically locked (indicating a circuit is connected) according to the displacement of the electrical contact control part, whether the electrical contact is connected with an action circuit or a representation circuit is generally judged, the electrical locking judgment threshold value is divided into an action circuit judgment threshold value and a representation circuit judgment threshold value, the generality is not lost, when the displacement of the electrical contact control part is smaller than the action circuit judgment threshold value, the electrical contact control part is judged to be connected with the action circuit when the displacement of the electrical contact control part is larger than the representation circuit judgment threshold value, and then the representation circuit is judged to be connected when the displacement of the electrical contact control part is larger than the representation circuit judgment threshold value, when the displacement of the first electrical contact control part is smaller than the action circuit judgment threshold value and the displacement of the second electrical contact control part is larger than the representation circuit judgment threshold value, the switch machine is electrically locked, or when the displacement of the second electrical contact control part is smaller than the action circuit judgment threshold value and the displacement of the first electrical contact control part is larger than the representation circuit judgment threshold value, the switch machine is electrically locked; the drawing-in judgment threshold value and the extending judgment threshold value are used for judging whether the switch machine is in an extending state or a drawing-in state according to the displacement of the stretching state part, the generality is not lost, the stretching state part is specified to be converted into a displacement positive direction from the drawing-in state to the extending state corresponding to the switch machine action rod, when the displacement of the stretching state part is smaller than the drawing-in judgment threshold value, the switch machine is in the drawing-in state, when the displacement of the stretching state part is larger than the extending judgment threshold value, the switch machine is in the extending state, after the threshold value is determined, the rotation or the movement of the selected part is monitored, the displacement data of the selected part is processed, and the state of the switch machine is judged according to the following steps:

the method comprises the following steps: obtaining a switch machine conversion judgment threshold value V_Threshold(s)Electric lock determination threshold (action circuit determination threshold R)_{Dynamic threshold}And represents a circuit judgment threshold R_{Watch threshold}) Pull-in decision threshold L_Threshold(s)Out of judgment threshold S_Threshold(s)；

Step two: variables R1 and R2 that record the displacement values of the drive parts and are used to calculate their velocity are cleared;

step three: obtaining the current driving part displacement or angular displacement detection value R_ToothThe value is given to R1;

step four: timing the machine time t1, and acquiring the displacement or angular displacement detection value R of the current driving part_ToothThe value is given to R2;

step five: calculating the speed or rotating speed V of the driving part within t1, if V > V_Threshold(s)When the switch machine is in the switching state, the value of R2 is given to R1, and the step four is returned; otherwise, executing the next step.

Step six: timing t2 (t 2 time ensures that the electric contact is converted), and obtaining the displacement or angular displacement R of the first electric contact control part_{Left side is connected}And displacement or angular displacement R of the second electrical contact-controlling part_{Right connector}Numerical values.

Step seven: if R is_{Left side is connected}＞R_{Watch threshold}While R is_{Right connector}＜R_{Dynamic threshold}Or R_{Right connector}＞R_{Watch threshold}While R is_{Left side is connected}＜R_{Dynamic threshold}When the switch is electrically locked, otherwise, the switch is in a non-indicating state.

Step eight: if the switch machine is electrically locked, obtaining the displacement value Y of the part in the stretching state, if Y is less than L_Threshold(s)The switch is in the pull-in and locked state, if Y > S_Threshold(s)And the point switch is in an extending and locking state and returns to the third step.

The invention has the advantages that: the state of the switch machine can be distinguished according to the speed of the driving part, the displacement of the electric contact control part and the displacement of the stretching state part, the switch machine is irrelevant to electric operation or hand-cranking operation, the application range is wide, the judgment result is accurate, the judgment method is simple, the state of the switch machine can be judged, the monitoring program can be executed efficiently, mismatching of the positions of electric locking (position state representation) and mechanical locking can be identified, error representation is further identified, and the safety of the switch machine is improved.

Drawings

FIG. 1 is a flow chart of the detection method of the present invention.

Fig. 2 is a schematic diagram of embodiment 1, embodiment 2 and embodiment 3.

Fig. 3 is a schematic diagram of embodiment 4 and embodiment 5.

In the figure: 1-1, gear shaft; 1-2, ZD9/ZDJ9 motor shaft; 1-3, a right movable contact point shaft; 1-4, a left movable contact point shaft; 1-5, a push plate sleeve; 1-6, action plate; 1-7, ZD9/ZDJ9 action bars; 2-1, ZD6 action bar; 2-2, a right crank shaft; 2-3, ZD6 motor shaft; 2-4, a left crank shaft; 2-5, and a rack block.

Detailed Description

To further explain the technical means and methods adopted by the present invention to achieve the intended purpose, the following detailed description of the embodiments, structural features and methods thereof will be provided in conjunction with the accompanying drawings and examples.

Example 1

The invention relates to a method for identifying and judging the state of a switch machine, which is characterized by comprising the following steps: the ZD9/ZDJ9 switch machine is used as an implementation object, and as shown in figure 2, a gear arranged on a motor shaft 1-2 of ZD9/ZDJ9 is in meshing transmission with a gear arranged on a gear shaft 1-1; the parallel gears arranged on the gear shaft 1-1 are further meshed with the gears on the ball screw rod for transmission. Thus, the motor drives the screw rod of the ball screw to rotate through the speed reducer, bearings are arranged at two ends of the screw rod of the ball screw and fixed in the bottom shell, the nut of the ball screw is arranged in the push plate sleeve 1-5, and when the screw rod rotates, the nut pushes the push plate sleeve 1-5 to move linearly.

Unlocking ZD9/ZDJ9 action bars 1-7 and pushing ZD9/ZDJ9 action bars 1-7 out of or into the base case during movement of the sleeve 1-5, and moving ZD9/ZDJ9 action bars 1-7 to the end position, the sleeve 1-5 continues to move and locks ZD9/ZDJ9 action bars 1-7.

The action plate 1-6 is fixedly connected to the push plate sleeve 1-5 and moves along with the push plate sleeve 1-5, a left movable contact point shaft 1-4 and a right movable contact point shaft 1-3 are installed in the contact point seat, and a control part is installed on one side of the movable contact point shaft, close to the action plate 1-6, and interacts with the action plate 1-6 to control the rotation of the movable contact point shaft, so that the swing of the movable contact point is controlled, and a static contact point group on the contact point seat is switched on or off according to rules.

When the switch machine is unlocked, the push plate sleeve 1-5 drives the action plate 1-6 to move, the left movable contact point shaft 1-4 and the right movable contact point shaft 1-3 are respectively communicated with a specified static contact point group, so that the electrical locking is realized, and when the switch machine is unlocked, the push plate sleeve 1-5 drives the action plate 1-6 to move, and before the mechanical unlocking, the action plate 1-6 drives the left movable contact point shaft 1-4 or the right movable contact point shaft 1-3 to rotate, so that the electrical unlocking is completed.

In the embodiment, a drive part selects a gear shaft 1-1, an electric contact control part selects a left movable contact shaft 1-4 and a right movable contact shaft 1-3, a stretching state part selects a ZD9/ZDJ9 action rod 1-7, the rotation angle of the gear shaft 1-1 is monitored, the rotation speed V of the gear shaft is calculated, and the angular displacement R of the left movable contact shaft 1-4 is monitored_{Left side is connected}And the angular displacement R of the right movable contact point shaft 1-3_{Right connector}The displacement Y of the action bars 1-7 of ZD9/ZDJ9 is monitored.

Determining a switch machine switching judgment threshold value V according to the rotating speed of a gear shaft 1-1 in the switch machine switching process_Threshold(s)When the rotating speed V of the gear shaft 1-1 exceeds the threshold value V_Threshold(s)The switch machine is judged to be in the switching state.

Without loss of generality, the positive directions of the angular displacement of the left movable contact point shaft 1-4 and the right movable contact point shaft 1-3 are both from the connection action contact point to the connection indication contact point rotation direction, and according to the angular displacement R of the left movable contact point shaft 1-4 and the right movable contact point shaft 1-3 after the electric locking_{Left side is connected}And R_{Right connector}Value, determining an electric locking judgment threshold value R_{Watch threshold}And R_{Dynamic threshold}，R_{Watch threshold}Is a reliable connection of a movable contact shaft angular displacement threshold, R, representing a contact (2 or 3 rows of stationary contacts)_{Dynamic threshold}The moving contact shaft angular displacement threshold value of the moving contact (1 row or 4 rows of static contacts) is reliably switched on, then R_{Watch threshold}＞R_{Dynamic threshold}When R is_{Left side is connected}＞R_{Watch threshold}While R is_{Right connector}＜R_{Dynamic threshold}Or R_{Right connector}＞R_{Watch threshold}While R is_{Left side is connected}＜R_{Dynamic threshold}The switch machine is mechanically and electrically locked.

Without loss of generality, the ZD9/ZDJ9 action rod 1-7 is set to extend to the positive displacement direction according to ZD9/ZDJ9 action rod 1-7 determining a pull-in judgment threshold L by specifying the displacement Y of the lock cylinder during pull-in locking and extension locking_Threshold(s)And an extension judgment threshold S_Threshold(s)If ZD9/ZDJ9 movement bar 1-7 displacement Y is smaller than the pull-in judgment threshold L_Threshold(s)In the pulled-in state, ZD9/ZDJ9 motion bar 1-7 displacement Y is larger than the extension judgment threshold S_Threshold(s)The extended state is assumed.

And processing the data obtained by monitoring and calculating according to the following steps to judge the state of the switch machine.

The method comprises the following steps: obtaining a switch machine conversion judgment threshold value V_Threshold(s)Electric locking judgment threshold value R_{Watch threshold}And R_{Dynamic threshold}Pull-in decision threshold L_Threshold(s)Out of judgment threshold S_Threshold(s)；

Step two: clearing R1 and R2 for recording the angular displacement of the gear shaft 1-1;

step three: obtaining the current gear shaft 1-1 angular displacement detection value R_ToothThe value is given to R1;

step four: timing the machine time t1, and acquiring the current gear shaft 1-1 angular displacement detection value R_ToothThe value is given to R2;

step five: calculating the rotating speed V of the gear shaft 1-1 in t1 time, if V is more than V_Threshold(s)When the switch machine is in a switching state, assigning the R2 value to R1, and returning to the fourth step; otherwise, executing the next step.

Step six: timing t2 time (t 2 time ensures that the electric contact is converted), and acquiring the angular displacement R of the left movable contact shaft 1-4 and the right movable contact shaft 1-3_{Left side is connected}And R_{Right connector}Numerical values.

Step seven: if R is_{Left side is connected}＞R_{Watch threshold}While R is_{Right connector}＜R_{Dynamic threshold}Or R_{Right connector}＞R_{Watch threshold}While R is_{Left side is connected}＜R_{Dynamic threshold}When the switch is electrically locked, otherwise, the switch is in a non-indicating state.

Step eight: if the switch machine is electrically locked, obtaining the displacement value Y of the action rod, if Y is less than L_Threshold(s)The switch is in the pull-in and locked state, if Y > S_Threshold(s)And the point switch is in an extending and locking state and returns to the third step.

Example 2

The invention relates to a method for identifying and judging the state of a switch machine, which is characterized by comprising the following steps: the switch machine is implemented by ZD9/ZDJ9 switch machine, the structure of the switch machine is as described in embodiment 1, the driving part selects ZD9/ZDJ9 motor shaft 1-2, the electric contact control part selects left side movable contact shaft 1-4 and right side movable contact shaft 1-3, the part in stretching state selects ZD9/ZDJ9 action rod 1-7, and the switch machine conversion determination threshold V is determined according to the rotating speed of ZD9/ZDJ9 motor shaft 1-2 in the switch machine conversion process_Threshold(s)When ZD9/ZDJ9 motor shaft 1-2 speed V exceeds this threshold V_Threshold(s)The switch machine switching is determined, and the rest is the same as in embodiment 1, and will not be described in detail.

Example 3

The invention relates to a method for identifying and judging the state of a switch machine, which is characterized by comprising the following steps: the switch machine is embodied by ZD9/ZDJ9 switch machine, the structure of the switch machine is as described in embodiment 1, the part selection action plate 1-6 in the stretching state, the driving part selection ZD9/ZDJ9 motor shaft 1-2 or the selection gear shaft 1-1, the electric contact control part selection left side movable contact shaft 1-4 and right side movable contact shaft 1-3.

Without loss of generality, the forward direction of the extending motion of the action rod 1-7 of the switch machine action plate 1-6 corresponding to ZD9/ZDJ9 is set as the positive displacement direction, and the pulling-in judgment threshold value L is determined according to the displacement Y value of the switch machine action plate 1-6 during the pulling-in locking and the extending locking_Threshold(s)And an extension judgment threshold S_Threshold(s)Then the displacement Y of the action plate 1-6 is less than L_Threshold(s)When the movable plate is in a pull-in state, the displacement Y of the movable plate 1-6 is larger than S_Threshold(s)The state is an extending state; in the judging step, the displacement value Y of the action plate 1-6 and the extension judging threshold value S are used_Threshold(s)And pull-in determination threshold L_Threshold(s)The comparison is made to determine whether the switch machine is in the extended state or in the retracted state, and the rest is the same as embodiment 1 or embodiment 2 and will not be described in detail.

Example 4

The invention relates to a method for identifying and judging the state of a switch machine, which is characterized by comprising the following steps: the ZD6 switch is implemented, as shown in figure 3, the motor of the switch is fixed on a reducer, the reducer is driven when the ZD6 motor shaft 2-3 rotates, the output shaft of the reducer is connected with a main shaft through a coupling, a locking gear is arranged on the main shaft, the locking gear is meshed with a rack block 2-5 for transmission, when the motor moves to the final position, the locking arcs of the two lock arcs are overlapped, the rack block 2-5 is locked by limiting the position of the locking gear, and the ZD6 action rod 2-1 is connected with the rack block 2-5 by a pin and moves along with the rack block 2-5.

The left crank arm 2-4 and the right crank arm 2-2 are installed in the contact seat, the rotating processes of the left crank arm 2-4 and the right crank arm 2-2 respectively drive the movable contact group to swing so as to be connected with different static contact groups, the rotation process of the main shaft controls the rotation of the left crank arm 2-4 and the right crank arm 2-2, and when the main shaft rotates and drives the rack block to move to the final position through the locking gear to enter an arc locking state, the left crank arm 2-4 and the right crank arm 2-2 are respectively connected with the specified static contact groups under the control of the rotation angle of the main shaft, so that the electric locking is realized.

When the switch machine is unlocked, the main shaft drives the locking gear to rotate, the locking gear and the locking arc of the rack block 2-5 are gradually separated until the locking gear enters gear meshing transmission, and before mechanical unlocking, when the main shaft rotates to a specified position, the left crank arm 2-4 or the right crank arm 2-2 is controlled to rotate, a specified static contact group is disconnected, and electrical unlocking is completed.

In the embodiment, a driving part selects a motor shaft 2-3 of ZD6, an electric contact control part selects a left crank arm 2-4 and a right crank arm 2-2, a stretching state part selects a rack block 2-5, the rotation angle of the motor shaft 2-3 of ZD6 is monitored, the rotation speed V of the motor shaft is calculated, and the angular displacement R of the left crank arm 2-4 is monitored_{Left side is connected}And the angular displacement R of the right crank arm 2-3_{Right connector}The displacement Y of the rack blocks 2-5 is monitored.

Determining a switch machine conversion determination threshold value V according to the 2-3 rotating speed of the motor shaft of ZD6 in the switch machine conversion process_Threshold(s)When ZD6 motor shaft 2-3 speed V exceeds this threshold value V_Threshold(s)The switch machine is judged to be in the switching state.

Without loss of generality, the positive directions of the angular displacements of the left crank arm 2-4 and the right crank arm 2-3 are all from the connection action contact point to the connection indicating the rotation direction of the contact point, and the angular displacements R of the left crank arm 2-4 and the right crank arm 2-3 are determined according to the electrical locking_{Left side is connected}And R_{Right connector}Value, determining an electric locking judgment threshold value R_{Watch threshold}And R_{Dynamic threshold}，R_{Watch threshold}Is to reliably switch on the movable contact shaft angular displacement threshold value of the representing contact (2 rows or 3 rows of static contacts)，R_{Dynamic threshold}The moving contact shaft angular displacement threshold value of the moving contact (1 row or 4 rows of static contacts) is reliably switched on, then R_{Watch threshold}＞R_{Dynamic threshold}When R is_{Left side is connected}＞R_{Watch threshold}While R is_{Right connector}＜R_{Dynamic threshold}Or R_{Right connector}＞R_{Watch threshold}While R is_{Left side is connected}＜R_{Dynamic threshold}The switch machine is mechanically and electrically locked.

Without loss of generality, the direction of the rack block 2-5 corresponding to the ZD6 action rod 2-1 to the extending movement is set as the positive displacement direction, and the pull-in judgment threshold L is determined according to the specific displacement Y value of the rack block 2-5 during pull-in locking and extending locking_Threshold(s)And an extension judgment threshold S_Threshold(s)If the rack block 2-5 displacement Y is smaller than the pull-in judgment threshold L_Threshold(s)When the rack is in a pull-in state, the displacement Y of the rack block 2-5 is larger than the extension judgment threshold S_Threshold(s)The extended state is assumed.

And processing the data obtained by monitoring and calculating according to the following steps to judge the state of the switch machine.

The method comprises the following steps: obtaining a switch machine conversion judgment threshold value V_Threshold(s)Electric locking judgment threshold value R_{Watch threshold}And R_{Dynamic threshold}Pull-in decision threshold L_Threshold(s)Out of judgment threshold S_Threshold(s)；

Step two: r1 and R2 recording the 2-3 angular displacement of the motor shaft of ZD6 are cleared.

Step three: obtaining a current 2-3 angular displacement detection value R of a motor shaft_ToothThe value is given to R1;

step four: timing the machine time t1, and acquiring the current ZD6 motor shaft 2-3 angular displacement detection value R_ToothThe value is given to R2;

step five: calculating the rotating speed V of the ZD6 motor shaft 2-3 within the time t1, if V is more than V_Threshold(s)When the switch machine state is in the switching state, the R2 value is given to R1, and the fourth step is returned; otherwise, executing the next step.

Step six: timing t2 time (t 2 time ensures that the electrical contact is converted), and acquiring the angular displacement R of the left crank arm 2-4 and the right crank arm 2-2_{Left side is connected}And R_{Right connector}Numerical values.

Step seven: if R is_{Left side is connected}＞R_{Watch threshold}While R is_{Right connector}＜R_{Dynamic threshold}Or R_{Right connector}＞R_{Watch threshold}While R is_{Left side is connected}＜R_{Dynamic threshold}When the switch is electrically locked, otherwise, the switch is in a non-indicating state.

Step eight: if the switch machine is electrically locked, obtaining the displacement value Y of the rack block between 2 and 5, if Y is less than L_Threshold(s)The switch is in the pull-in and locked state, if Y > S_Threshold(s)And the point switch is in an extending and locking state and returns to the third step.

Example 5

The invention relates to a method for identifying and judging the state of a switch machine, which is characterized by comprising the following steps: the switch machine is constructed as described in embodiment 4, and the ZD6 switch machine is used as the switch machine, and the ZD6 operating rod 2-1 is selected as the part in tension, and the ZD6 operating rod 2-1 is set to move in the positive displacement direction, and the value of the ZD6 operating rod 2-1 in the displacement Y during the pull-in locking and the pull-out locking is used to determine the pull-in judgment threshold L_Threshold(s)And an extension judgment threshold S_Threshold(s)When the displacement Y of the ZD6 action rod 2-1 is less than L_Threshold(s)The ZD6 action rod 2-1 displacement Y is more than S in the pull-in state_Threshold(s)The extended state is assumed. Otherwise, as in embodiment 4, the step of determining the state of the switch machine is similar to embodiment 4, and the displacement value of the rack bar 2-5 is changed to the displacement value of the action lever 2-1 of ZD6 in step eight, and will not be described in detail.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.