JP3747770B2 - Blocking rod drive control method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to drive control of a blocking bar used in an electric circuit breaker or the like disposed at a parking lot or an entrance / exit of an expressway.
[0002]
[Prior art]
In recent years, electric circuit breakers have been installed in tollgates such as expressways and parking lots, and the vehicle is prevented from entering without permission by opening and closing the blocking bar.
[0003]
However, the blocking bar of the conventional electric circuit breaker has a slow movement speed, which is a cause of traffic congestion on the surrounding roads.
[0004]
Hereinafter, a conventional method for controlling the blocking rod will be described.
[0005]
As shown in FIG. 8, in the conventional electric circuit breaker, a command is input from the power supply device 81 to the motor 82, the speed reducer 83 is connected to the rotating shaft of the motor 82 to decelerate, and the blocking bar 84 is moved to the speed reducer 83. The motor 82 is rotationally controlled by being attached to the output shaft, and the blocking rod 84 is driven 90 ° from the horizontal to the vertical to open and close the doorway of the vehicle. 85 is a descending start signal, and 86 is an ascending start signal.
[0006]
[Problems to be solved by the invention]
However, in the above-described conventional electric circuit breaker, the blocking rod stops at the same position every time it is opened and closed, so the output gear of the speed reducer is subject to uneven wear. Further, when the blocking rod is driven at high speed, a specific tooth of the output gear Had the problem of being damaged by impact.
[0007]
The present invention solves the above-described problems, and provides a method for driving a blocking rod that can drive the blocking rod at high speed, prevents damage to the speed reducer, and improves the reliability of devices such as an electric circuit breaker. For the purpose.
[0008]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a device for controlling the driving of a blocking rod connected to an output shaft of a geared motor within a specific range, and controls the stop position of the output shaft of the geared motor so that the output with time elapses. By changing the stop position of the shaft and changing the stop position of the blocking bar at regular intervals, it is possible to prevent the impact force from concentrating on a specific tooth of the output gear to be damaged.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
In order to solve the above-described problems, the present invention provides a device for controlling the driving of a blocking rod connected to an output shaft of a geared motor within a specific range, and controls the stop position of the output shaft of the geared motor so that the output with time elapses. This is a drive control method of the blocking rod that varies the stop position of the shaft. Since the stop position of the output shaft of the speed reducer connected to the blocking rod is varied every time, the impact force generated at the stop position of the blocking rod is Concentration on specific teeth can be prevented.
[0010]
Further, in the blocking rod drive control method according to claim 1, the moving range of the blocking rod can be controlled.
[0011]
In addition, in the blocking rod drive control method according to claim 1 or 2, wherein the stop position of the output shaft is changed by a constant interval as time passes, the stop position is changed by a constant interval as time elapses. Absent.
[0012]
Further, step 1 for storing the basic driving range 90 ° for determining the driving range of the blocking rod and the allowable fluctuation range in the controller, and when the descending operation signal is inputted to the controller, the rotation of the geared motor is controlled to block the blocking rod. Step 2 for lowering the basic drive range by 90 °, step 3 for raising the basic drive range by 90 ° when a rising motion signal is input after step 2, and a blocking rod. When the fluctuation value is in the addition state, it is incremented by +1 each time until it exceeds the maximum value, and when it exceeds the maximum value, it shifts to the subtraction state. 4. The method of claim 1, further comprising the step 4 of shifting to the addition state at a time, and repeating the steps 2 to 4 thereafter. Driven always approximately 90 ° in location and a lowered position, and can be varied within the allowable variation range stop position at regular intervals.
[0013]
Further, a step 11 for storing the basic driving range 90 ° for determining the driving range of the blocking rod and the allowable fluctuation range in the controller, and a control signal for controlling the rotation of the geared motor when the descending operation signal is inputted to the controller. Is lowered by a range obtained by subtracting a predetermined value within the allowable fluctuation value to the basic driving range of 90 °, and when a rising operation signal is input after step 12, the predetermined value within the allowable fluctuation value is within the basic driving range of 90 °. Step 13 and the step 13 are repeated thereafter, and Steps 12 and 13 are repeated. In Steps 12 and 13, when the fluctuation value of the blocking bar is in the addition state, +1 is added each time until the maximum value is exceeded, When the maximum value is exceeded, the state shifts to the subtraction state. When the subtraction state is reached, -1 is decremented each time the minimum value is exceeded, and when the minimum value is exceeded, the transition to the addition state occurs The drive control method for blocking rod according to any one of claims 3 to claim 1, can be driven while changing the stop position of the blocking rod expansion direction or reduction direction.
[0014]
Further, in the drive control method of the blocking rod according to any one of claims 1 to 5, wherein the motor is driven at high speed using a servo motor, a larger impact force generated at a stop position of the blocking rod by high speed driving is applied. Therefore, it is possible to prevent concentration on specific teeth and to ensure the reliability of the device.
[0015]
Furthermore, in the drive control method of the blocking rod according to any one of claims 1 to 6, which is used for an electric circuit breaker disposed at an entrance / exit of a parking lot or an expressway, Smooth flow of traffic and ease traffic congestion in the surrounding area.
[0016]
As described above, the control method of changing the stop position of the blocking rod every time can prevent the specific teeth of the output gear of the reduction gear from being damaged, and the reliability of the device can be improved.
[0017]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0018]
Example 1
In FIG. 1, 11 is an NC controller for controlling the position of a blocking rod, 12 is a servo driver for driving a servo motor, 13 is a servo motor, 14 is a speed reducer for reducing the motor speed, and 15 is a blocking. A bar 16 is a descending start signal, and 17 is an ascending start signal.
[0019]
Here, the geared motor is obtained by connecting the output of the motor to the input gear of the speed reducer, the servo motor 13 and the speed reducer 14 may be integrated, or the servo driver 12 includes the NC controller 11 function. But you can. The blocking bar 15 is connected to the output shaft of the speed reducer 14.
[0020]
The operation of the servo system configured as described above will be described.
[0021]
FIG. 2 is a flowchart of processing performed by the NC controller according to the first embodiment. First, the NC controller 11 is moved to the basic driving range of 90 ° movement amount data, allowable variation range (maximum value and minimum value), and steps per time. The initial state of the addition / subtraction state is stored in the variable A and the variable B (addition state in the first embodiment) and stored (step 1).
[0022]
Next, when the descent start signal 16 is input, the NC controller 11 instructs the servo driver 12 to perform a descent operation of 90 °. In response to the command, the servo driver 12 drives the servo motor 13. The output of the servo motor 13 is decelerated in the speed reducer 14 and transmitted to the output shaft of the speed reducer 14 to lower the connected blocking bar 15 (step 2).
[0023]
When the rising start signal 17 is input next after the completion of the descending operation, the variable A obtained by adding the variation amount per one time to the basic variation range 90 ° is calculated, and the ascending operation corresponding to the movement amount A is performed by the servo driver. 12 Upon receiving the ascent command, the servo driver 12 drives the servo motor 13 to raise the blocking rod 15 connected to the speed reducer 14 (step 3).
[0024]
Here, the calculation process of the movement amount A will be described. If variable B indicates an addition state, +1 is added to movement amount A (adding one step amount), and variable B is subtracted from the addition state when movement amount A exceeds the maximum allowable variation value in the calculation process. Transition to the state. If the variable B indicates the subtraction state, the variable B is added from the subtraction state to the addition state when the movement amount A is −1 (subtract the step amount for one time) and the movement amount A is less than the minimum allowable fluctuation value. (Step 4).
[0025]
Thereafter, the process proceeds to a descent start signal waiting process in step 2, and steps 2 to 4 are repeatedly executed.
[0026]
As an example of the variation range of the blocking rod, when the maximum allowable variation value is set to 10 ° and the minimum allowable variation value is set to 0 °, the operation of the blocking rod is as shown in FIG. 3, and the locus of the stopping position of the blocking rod is as shown in FIG. At this time, if the step amount (predetermined value) for one time is set to 1 ° and the initial lowering stop position of the blocking bar is started in a horizontal state, the tenth lowering stop position of the blocking bar is 10 ° upward from the horizontal. Will be located.
[0027]
When the maximum allowable fluctuation value is set to 10 ° and the minimum allowable fluctuation value is set to −5 °, the stop position draws a locus indicated by a dotted line in FIG. 4 (the operation diagram of the blocking bar is omitted).
[0028]
In this way, since the driving range of the blocking rod (about 90 ° per rotation) is made constant and the stopping position of the blocking rod is driven while changing by the step amount for one time, there is no sense of incongruity and the vehicle This can be applied to the regulation (in / out) of moving objects, and at the same time, it is possible to prevent a specific tooth on the output side of the speed reducer from receiving the impact force generated when the blocking bar stops.
[0029]
(Example 2)
In FIG. 5, first, the initial state of the addition / subtraction state is set in the NC controller 11 as the basic drive range 90 ° movement amount data, the allowable variation range, the step amount per time, and the variable B (Example). 2 is the addition state) and stored (step 11).
[0030]
Next, when the descent start signal 16 is input, the NC controller 11 causes the servo driver 12 to perform a descent operation corresponding to the movement amount A obtained by subtracting one step amount from the movement amount data of 90 ° that is the basic drive range. Command. In response to the command, the servo driver 12 drives the servo motor 13. The output of the servo motor 13 is decelerated in the speed reducer 14 and transmitted to the output shaft of the speed reducer 14 to lower the connected blocking bar 15.
[0031]
Here, the calculation process of the movement amount A will be described. If the variable B indicates the subtraction state, the variable B is added from the subtraction state to the addition state when the movement amount A is −1 (subtract the step amount for one time) and the movement amount A is less than the minimum allowable fluctuation value. Migrate to If variable B indicates an addition state, +1 is added to movement amount A (adding one step amount), and variable B shifts from the addition state to the subtraction state when movement amount A exceeds the maximum allowable fluctuation value. (Step 12).
[0032]
When the rising start signal 17 is input after the completion of the lowering operation, the servo driver 12 is instructed to move upward by the moving amount A obtained by adding the step amount for one time to the moving amount data of 90 ° which is the basic driving range. In response to the command, the servo driver 12 drives the servo motor 13. The servo motor 13 raises the blocking bar 15 connected to the speed reducer 14.
[0033]
If the variable B indicates an addition state, the movement amount A is calculated by adding +1 (adding one step amount) to the movement amount A, and when the movement amount A exceeds the maximum allowable variation value, the variable B Shifts from the addition state to the subtraction state. If the variable B indicates the subtraction state, the variable B is added from the subtraction state to the addition state when the movement amount A is −1 (subtract the step amount for one time) and the movement amount A is less than the minimum allowable fluctuation value. (Step 13).
[0034]
Then, the process proceeds to the descending start signal waiting process in step 12, and thereafter, step 12 and step 13 are repeatedly executed.
[0035]
As an example of the fluctuation range of the blocking bar, when the maximum allowable fluctuation value is set to 10 ° and the minimum allowable fluctuation value is set to 0 °, the operation of the blocking bar is as shown in FIG. 6, and the locus of the stopping position of the blocking bar is as shown in FIG. If the maximum allowable fluctuation value is 10 ° and the minimum allowable fluctuation value is −10 °, the stop position draws a locus indicated by a dotted line in FIG. 7 (the operation diagram of the blocking bar is omitted).
[0036]
Note that the step amount (predetermined value) per time is stored in step 11 as in the first embodiment.
[0037]
In this way, while the driving range of the blocking rod (approximately 90 ° per stroke) is varied, the blocking rod is driven while changing the stop position of the blocking rod by one step amount in both directions. The resulting impact force does not concentrate on specific teeth on the output side of the reducer.
[0038]
Note that the allowable fluctuation values and the step amount (predetermined value) per time described in the first and second embodiments are examples, and should be set in consideration of the performance required by the device and the pitch of the output gear of the reduction gear. That's fine.
[0039]
Moreover, if the motor is driven at high speed using a servo motor, the effect of protecting specific teeth of the speed reducer is further increased.
[0040]
Furthermore, if it is used for an electric shut-off device placed at the entrance / exit of a parking lot or an expressway, the vehicle can be regulated smoothly, and traffic congestion in the surrounding area can be alleviated.
[0041]
【The invention's effect】
As apparent from the above-described embodiment, according to the invention described in claim 1, the impact force generated at the stop position of the blocking rod is changed each time by changing the stop position of the output shaft of the geared motor. Can be prevented from concentrating on.
[0042]
Further, according to the second and third aspects of the invention, the stop position is changed by a constant interval, so that the entry and exit of a moving object such as a vehicle can be smoothly regulated without a sense of incongruity.
[0043]
According to the fourth aspect of the present invention, the driving range of the blocking rod per time is constant, and the stop position can be changed by a predetermined amount every time.
[0044]
According to the fifth aspect of the present invention, the driving range of the blocking rod per one time is variable, and the stop position can be changed every time in both directions.
[0045]
According to the sixth aspect of the invention, the blocking rod can be driven at a high speed, and a large impact force generated at the stop position is received by a different tooth every time, so that the life of the speed reducer is improved.
[0046]
Furthermore, according to the seventh aspect of the invention, smooth regulation of the vehicle is possible, and surrounding traffic congestion can be alleviated. Further, since the life of the reduction gear is improved, the reliability of the electric circuit breaker is also improved.
[Brief description of the drawings]
FIG. 1 is a block diagram of a control system according to a first embodiment of the present invention. FIG. 2 is a flowchart of a control system according to a first embodiment of the present invention. FIG. 5 is a flow chart of the control system in the second embodiment of the present invention. FIG. 6 is an operation diagram of the blocking bar in the second embodiment of the present invention. FIG. 8 is a block diagram of a stop position of a blocking bar in Embodiment 2 of the present invention. FIG. 8 is a block diagram of a conventional control system.
11 NC controller 12 Servo driver 13 Servo motor 14 Reduction gear 15 Blocking rod 16 Lowering start signal 17 Upward starting signal

Claims (7)

In a device that controls the driving of a blocking rod connected to the output shaft of a geared motor within a specific range, the driving control of the blocking rod that controls the stopping position of the output shaft of the geared motor and changes the stopping position of the output shaft over time. Method. The method for controlling the driving of a blocking bar according to claim 1, wherein the driving range of the blocking bar is approximately 90 ° per stroke. 3. The blocking rod drive control method according to claim 1, wherein the stop position of the output shaft is changed by a predetermined interval as time elapses. The basic driving range 90 ° for determining the driving range of the blocking rod and the allowable fluctuation range are stored in the controller, and when the descending operation signal is input to the controller, the rotation of the geared motor is controlled to control the blocking rod as a basic. Step 2 for lowering the driving range by 90 °, Step 3 for raising the basic driving range by 90 ° and adding a predetermined value within the allowable fluctuation value when an ascending motion signal is input after step 2, and fluctuation of the blocking rod When the value is in the addition state, +1 is added to the predetermined value every time until the maximum value is exceeded, and when the value exceeds the maximum value, the state is shifted to the subtraction state. 4. The method of claim 1, further comprising a step 4 of shifting to the addition state when the minimum value is exceeded, and repeating the steps 2 to 4 thereafter. 5. A step 11 for storing the basic driving range 90 ° for determining the driving range of the blocking rod and the allowable variation range in the controller, and a basic operation of the blocking rod by controlling the rotation of the geared motor when the descending operation signal is input to the controller. Step 12 in which the predetermined value within the allowable fluctuation value is subtracted from the driving range 90 °, and when a rising operation signal is input after step 12, the predetermined value within the allowable fluctuation value is added to the basic driving range 90 °. Step 13 is then raised, and Steps 12 and 13 are repeated thereafter. In Steps 12 and 13, when the fluctuation value of the blocking bar is in the added state, +1 is added each time until the maximum value is exceeded, and the maximum value is reached. 2. When the value exceeds the minimum value, the state shifts to the subtraction state. When the value is in the subtraction state, the value is decremented by 1 every time until the minimum value is exceeded. Drive control method for blocking rod according to any one of al claim 3. 6. The blocking rod drive control method according to claim 1, wherein the motor is driven at a high speed by using a servo motor. The blocking rod drive control method according to any one of claims 1 to 6, wherein the blocking rod drive control method is used for an electric circuit breaker disposed at an entrance / exit of a parking lot or an expressway.

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