JP4336662B2 - Control device for cable drawing car - Google Patents

Description

  The present invention relates to a cable extension car used for distribution line work such as repair and repair of a power transmission path installed between utility poles, for example, in particular, so that a plurality of cable drums circulate synchronously on a vehicle. The present invention relates to a control device for a cable drawing car.

  When repairing or refurbishing an existing power transmission path, a temporary power transmission path that bypasses the repair / repair range of the power transmission path is generally provided, and construction is performed without any power outage. In order to perform such an uninterruptible construction method, a cable extension vehicle for extending and collecting a cable as a temporary power transmission line is used.

  Conventionally, as this type of cable-drawing wheel, there is one disclosed in, for example, Japanese Utility Model Publication No. 3-55339 (Patent Document 1). This known example of a cable-drawn vehicle is configured such that a plurality (six) of cable drums can be rotated in synchronism with a drum rotating device on the vehicle. Note that different types of cables are wound around each cable drum.

  In this known cable extension wheel, when a desired cable drum is designated in the operation section, the designated one cable drum moves to a drum use position which becomes a cable feed winding position, and stops there. The cable can be fed out from the cable drum at the use position.

  Further, in this known example (Japanese Utility Model Publication No. 3-55339), the cable drum can be attached / detached at the drum attaching / detaching position.

  In the cable extension wheel of the above-mentioned Japanese Utility Model Laid-Open No. 3-55339, immediately before a designated cable drum is called, the designated cable drum reaches a target position (drum use position or drum detachment position). After the driving speed of the drum circulating device is decelerated by a signal from a deceleration detector (limit switch), the drum circulating device is stopped by a signal from a stop detector (limit switch). In this way, if the drum circulating device and each cable drum are decelerated to a predetermined low speed and then stopped, the designated cable drum can be accurately stopped at the target position and the shock at the time of stopping can be reduced. it can.

  Moreover, in the cable extension wheel of the above-mentioned Japanese Utility Model Publication No. 3-55339, each cable drum can be rotated in both forward and reverse directions, and the drum use position (cable unwinding / winding position) and drum removal / attachment position. Therefore, there are 4 sets (8 in total) of deceleration detectors and stop detectors.

  Incidentally, in the cable extension wheel disclosed in Japanese Utility Model Laid-Open No. 3-55339, the cable drum mounted on the outer periphery of the rotating body is rotated by rotating a rotating body having a rotation center as a drum rotating device. However, there is a chain drive type as shown in, for example, Japanese Utility Model Publication No. 3-4095 (Patent Document 2) as a drum rotating device in this type of cable extension wheel.

Japanese Utility Model Publication No. 3-55339 No. 3-4095

  However, the cable-drawn vehicle disclosed in Patent Document 1 (Japanese Utility Model Publication No. 3-55339) has the following problems.

  First, in order to stop the specified cable drum accurately at the target position, a deceleration detector and a stop detector are used. If the stop detector is abnormal (for example, disconnection or detector itself) When the specified cable drum passes the target position (drum use position or drum attachment / detachment position), a stop signal is not sent to the drum circulator (motor). The problem of continuing.

  Further, even when the stop detector is normal and the deceleration detector is abnormal, it is considered that each cable drum continues to circulate in a setting in which the stop detector does not operate unless the deceleration detector operates. When the cable drum continues to circulate, it is necessary to forcibly stop the drum circulator by operating the emergency stop switch.

  Moreover, in the above-mentioned known (Japanese Utility Model Publication No. 3-55339) cable extension wheel, each cable drum can be rotated in both forward and reverse directions, and both the drum use position (cable unwinding position) and the drum removal position Since there are 4 sets of deceleration detectors and stop detectors (8 in total), when any abnormality occurs in the circulation or stop of each cable drum, There is also a problem that it is difficult to determine whether there is a defect, and it takes a long time to perform maintenance work such as repair and replacement of parts.

  In view of the above circumstances, the present invention can solve the problem that the cable drum continues to run (runaway) when the deceleration detector or the stop detector becomes abnormal in the cable-drawn vehicle. In addition, when an abnormality occurs in the deceleration detector or the stop detector, the object is to be able to quickly determine the abnormality detector.

  The present invention has the following configuration as means for solving the above problems. The present invention is directed to a cable-drawn vehicle.

Invention of Claim 1 The cable extension wheel used in claim 1 of the present invention rotates a plurality of cable drums synchronously by a drum rotating device on the vehicle and feeds the cable of the cable drum at the drum use position. It can be rolled up and wound up. In addition, as the drum rotating device for the cable-drawing wheel used in the first aspect, one in which each cable drum is rotated only in one direction can be adopted.

  As a drum circulator for this cable extension wheel, a plurality of cable drums are attached to the outer peripheral portion of a rotating body having a center of rotation, for example, as in Patent Document 1 (Japanese Utility Model Publication No. 3-55339). A rotating body with a cable drum is rotated by a rotating body drive device, or a plurality of cable drums are attached to a chain at a predetermined interval, as in Patent Document 2 (Japanese Utility Model Publication No. 3-4095), A chain with a cable drum that is circulated by a chain drive device can be used.

  The control device according to the first aspect of the present invention is a set of a deceleration detector and a stop detector for detecting the passage of each cable drum each time each cable drum passes. A detector set for decelerating, a decelerating detector counter for counting the count number of the decelerating detector, and a stop detector counter for counting the count number of the decelerating detector. Drum rotation control means for stopping the drum rotation device after decelerating the drum rotation device based on the number of times counted by the deceleration detector counter and the stop detector counter while moving to the drum use position, When the difference between the cumulative count of the deceleration detector counter and the cumulative count of the stop detector counter is 2 or more, a discrimination signal is output. Using a discriminating means for, in which discriminating means has a drum circulator When outputting discrimination signal so as to stop.

  The control device for the cable-drawing vehicle according to claim 1 functions as follows. In the following description, the abnormality of the detector means a state in which a detection signal is not generated even if the cable drum passes through the detector portion, or a state in which the detection signal is not turned on or returned (not turned off). To do.

  First, when the selection switch for the desired cable drum is pressed, if both the deceleration detector and the stop detector are normal, each cable drum passes through the deceleration detector portion and the stop detector portion sequentially. Detection signals are output from both detectors, and the decelerating detector counter and stop detector counter add the counts. If both detectors are normal, the cumulative count of each counter The number difference never reaches “2”. Therefore, even if the cable drum needs to pass through each detector part more than once for the designated cable drum to reach the drum use position, the discrimination means does not issue a discrimination signal, and each counter counts up. Based on the signal, the drum circulator performs normal deceleration → stop operation, and the designated cable drum is automatically stopped at a predetermined drum use position. In addition, when the designated cable drum is located adjacent to the upper side of the circumferential direction of the drum use position, each counter emits a count-up signal with only the count number “1”, and performs a deceleration → stop operation. Naturally, the difference between the cumulative counts of the counters does not become “2”.

  On the other hand, if there is an abnormality in the stop detector, no detection signal is output from the stop detector even if the cable drum passes through the stop detector portion, so the count number is not added to the stop detector counter. (It remains “0” count). Therefore, normally, the automatic stop control based on the stop detector is not executed. If the deceleration detector is normal at this time, a deceleration signal is issued to the drum rotating device when the deceleration detector counter counts the number of times of deceleration signal transmission.

  By the way, if the stop detector is abnormal and the deceleration detector is normal, the count number is not added to the stop detector counter (it remains “0” count), Each time the cable drum passes, the deceleration detector counter increments the count. When the cumulative count of the deceleration detector counter reaches “2”, the discriminating means determines the difference between the cumulative counts. When “2” is read, a discrimination signal is output from the discrimination means, and the drum circulating device is automatically stopped based on the discrimination signal.

  Conversely, if the stop detector is normal and the deceleration detector is abnormal, the deceleration detector counter remains “0” even if the cable drum moves, but the stop detector counter is cumulative. When the count number becomes “2”, the discriminating means reads the difference “2” in the accumulated count number of each counter, and forcibly stops the drum circulating device as described above.

  In the control device according to the first aspect, even if the deceleration detector is abnormal, the stop detector can function independently. In this case, the designated cable drum is located on the upper side in the circumferential direction of the drum use position. In the adjacent position, before the discriminating means reads the difference “2” in the accumulated count number of each counter, the stop detector counter issues a count-up signal with the count number “1” and immediately stops the drum circulating device. Will come to let you.

  If both the deceleration detector and the stop detector are abnormal when the cable drum is called, the drum circulator continues to operate, but at that time, the emergency stop switch can be pressed to forcibly stop. .

  Further, when the drum circulator is stopped by the determining means and when the drum circulator is stopped by the emergency stop switch, the rotation speed of the cable drum may be slowed down and stopped.

The invention of claim 2 of the present application The cable extension wheel used in claim 2 of the present application is configured such that a plurality of cable drums are synchronously circulated by a drum circulator on the vehicle and the cable drum is connected to the drum circulator at the drum detaching position It has been adopted so that it can be attached to or detached from the. The drum attachment / detachment position is normally set to a position different from the drum use position (cable feeding and winding position) on the orbit of the cable drum (drum shaft). The cable extension wheel used in claim 2 can be directly used as the cable extension wheel used in the description of claim 1.

  The control device for the cable-drawing wheel according to claim 2 functions when the designated one cable drum is moved to the drum attaching / detaching position.

  The control device according to claim 2 includes a detector set including a deceleration detector and a stop detector for detecting the passage of each cable drum as each cable drum passes, and a deceleration detection. It has a detector counter for deceleration that counts the count number of the detector and a detector counter for stop that counts the count number of the detector for stop, and decelerates while one designated cable drum moves to the drum attachment / detachment position Drum counter control means for decelerating the drum orbiting device based on the number of times counted by the detector counter for stopping and the detector counter for stopping, and stopping the cumulative counting and stopping of the decelerating detector counter The discrimination means outputs a discrimination signal when the difference from the cumulative count of the detector counter becomes 2 or more. It is obtained by the drum circulator when output is stopped.

  The control device according to claim 2 functions in the same manner as the control device according to claim 1 described above, and accumulates each counter (deceleration detector counter and stop detector counter) while the cable drum is moving. When the difference between the count numbers reaches “2”, the discriminating means discriminates this, and the drum circulating device is forcibly stopped by the discriminating signal from the discriminating means.

Invention of claim 3 of the present application The invention of claim 3 of the present application employs a control device according to claim 1 or 2 that allows each cable drum to circulate in both forward and reverse directions as a drum circulator. The specified cable drum is moved to the target position by a short route.

  In addition, two detector sets, one that functions as a decelerating detector and one as a stop detector, function when the cable drum rotates in the forward direction and the function that functions when the cable drum rotates in the reverse direction. The two sets of detectors are installed such that the deceleration detector is operated first and the stop detector is operated later.

  In the control device according to the third aspect, when one cable drum is designated, the designated cable drum circulates in a direction close to the target position (drum use position or drum attachment / detachment position). Of these, only the detector set on the side on which the deceleration detector is operated first functions.

  Incidentally, a deceleration detector counter or a stop detector counter is connected to each detector (two in total) of the two sets of detectors, and is the same as the control of claim 1 or claim 2. In addition, when any detector in the functioning detector set is abnormal, the drum circulating device is stopped when the difference between the cumulative counts of the counters becomes “2”. It has become.

  As in claim 3, when two detector sets are used, each counter of a total of four detectors is set to a functioning state, and both of the designated one detector set are set. When both detectors are abnormal, the counter count of each abnormal detector (both “0” count) is compared with the counter count of another normal detector set, When the count number of the counter of the normal detector becomes “2” (the difference between the cumulative count number of the counter of the abnormal detector and the counter of the normal detector becomes “2”), the drum circulating device as described above May be stopped.

Invention of Claim 4 of the Invention The invention of claim 4 of the present application is the control device according to any one of claims 1 to 3, wherein the cable drum has passed through the deceleration detector and the stop detector to be operated. Nevertheless, there is an error notification means for notifying the abnormality detector when there is an abnormality detector that the counter does not count.

  An abnormal detector is certified when the difference between the accumulated counter numbers of the deceleration detector counter and the stop detector counter is “2”, and the count number of the two counters remains “0”. The detector corresponding to the counter is certified as an abnormal detector.

  As the error notification means, for example, an abnormality detector can be displayed by using a display light having a code number indicating which detector is displayed on the liquid crystal display unit, or a plurality of (the same number as each detector) indicator lights. A light-up display or a sound-informing abnormality detector can be employed.

Invention of Claim 5 of the Invention The invention of claim 5 of the present application is that, in the control device of claim 4 above, when the deceleration detector does not operate normally in one set of the deceleration detector and the stop detector, Even if the stop detector counter counts the number of counts necessary for the stop, the stop detector does not output a stop signal to the drum circulating device.

  By the way, in claim 4, the difference between the accumulated counts of both counters functions as “2” to notify the abnormality detector, but the distance that the designated cable drum moves to the target position is short. In this case (when the count number of the counter is only “1”), when the drum circulating device is stopped without the determination unit operating, the error notification unit of claim 4 does not report an error.

  Therefore, in the control device according to claim 5, when the deceleration detector is abnormal, even if the designated cable drum is close to the target position (the movement distance is 1 count), the cable drum is equivalent to 2 counts. Just trying to move continuously. When the deceleration detector is abnormal, when the cable drum moves by 2 counts, the difference in the accumulated counts of the counters becomes “2”. The function of notifying the abnormality detector to the means occurs.

  The control device for the cable-drawing wheel of the present invention has the following effects.

Effect of the Invention of Claim 1 In the control device of claim 1 of the present application, when stopping the designated cable drum at the drum use position, among one set of detectors (deceleration detector and stop detector), If any one of the detectors is abnormal, the drum circulator can be forcibly stopped when the difference between the cumulative counts of the counters of the detectors becomes "2" or more. There is an effect that the trouble of continuing to run (runaway) can be prevented in advance.

Effect of the Invention of Claim 2 In the control device of claim 2 of the present application, when the designated cable drum is stopped at the drum attachment / detachment position, a set of detectors (deceleration detectors) as in the case of the above-mentioned claim 1. If any one of the detectors is stopped, the drum circulating device is forcibly stopped when the difference in the accumulated counts of the counters of the detectors becomes “2” or more. Therefore, it is possible to prevent the trouble that the cable drum continues to run (runaway).

Effect of the Invention of Claim 3 In the control device of the invention of claim 3 of the present application, a drum circulator that can circulate each cable drum in both forward and reverse directions is adopted, and the designated cable drum is short. In addition to the effect of the first or second aspect, there is an effect that the designated cable drum can be moved to the target position in a short time.

Effect of the Invention of Claim 4 In the invention of claim 4 of the present application, when there is an abnormal detector, the error notification means is made to notify the error detector. In addition to the effect, it is easy to identify which anomaly detector is, and there is an effect that maintenance work such as repair or parts replacement is not required, and the maintenance work time can be shortened. .

Effect of the Invention of Claim 5 In the control device of claim 5 of this application, when the deceleration detector does not operate normally in one set of the deceleration detector and the stop detector, the stop detector Even if the counter counts the number of counts necessary for stopping, a stop signal from the stop detector to the drum circulating device is not output. When the deceleration detector is abnormal, the determination means is activated when the cable drum moves by 2 counts. Therefore, in addition to the effect of the fourth aspect, in the control device of the fifth aspect, even when the designated cable drum is only instructed to move by one count, the error detector is surely notified to the error notification means. There is an effect that can be.

  Hereinafter, a control device for a cable-drawn vehicle according to an embodiment of the present invention will be described with reference to FIGS.

  As shown in FIG. 1, in the cable extension vehicle used in this embodiment, a plurality of (six in the illustrated example) cable drums 3 </ b> A to 3 </ b> F are circulated by the drum circulator 2 on the loading platform 11 of the vehicle 1. Trying to get. 1 is substantially the same as that shown in Japanese Utility Model Publication No. 3-55339 shown in Patent Document 1.

  In this embodiment, the drum circulating device 2 employs a rotating body 21 that is rotated by a rotating body driving device 25.

  The rotating body 21 has a pair of side plates with six arms 23, 23,... Extended from the center of rotation (rotation shaft 22 portion) at equal angular intervals in the vehicle width direction. The rotating body 21 is rotatably supported by a rotating shaft 22 between a pair of left and right support columns 12 provided on the vehicle loading platform 11.

  One cable drum 3A to 3F is mounted in the vicinity of the tip of each arm 23, 23,. In this embodiment, there is a long groove at the tip of each arm 23 so that the drum shaft of the cable drum (3A-3F) can slide in the long groove. The cable drums 3 </ b> A to 3 </ b> F are configured to circulate along the circuit rail 28. Each arm 23 is provided with a cam 24 for operating each detector (8A to 8D, 9A to 9D) described later.

  The rotating body 21 with the cable drum is rotated by a rotating body driving device 25 including a motor (hydraulic drive type) 26 and a power transmission member 27. The motor 26 of the rotator driving device 25 employs a motor that can operate in both forward and reverse directions, and can rotate the rotator 21 in forward and reverse directions in response to a command from a controller 61 described later.

  In the cable extension vehicle of this embodiment, the position closer to the rearmost end of the vehicle loading platform 11 (the same height as the rotary shaft 22) in the orbiting rail 28 is the drum use position P for feeding and winding the cable, and the drum use position. A position deviating downward from P by a predetermined angle (for example, about 50 °) is a drum attaching / detaching position Q.

  The cable drum (reference numeral 3A in FIG. 1) at the drum use position P is rotated by the drum driving device 4 in the cable feeding direction and the cable winding direction. The drum drive device 4 includes a motor (hydraulic drive type) 41 and a power transmission member 42 that can rotate forward and backward. The upper side member (sprocket) of the power transmission member 42 is supported by the side plate 13. When the cable drum is in the drum use position P (for example, 3A in FIG. 1), the gear 34 on the cable drum 3A side and the gear 44 on the drum drive unit 4 side are engaged with each other. By rotating it in either direction, the cable drum 3A can be rotated in the cable feeding direction or the cable winding direction.

At the drum attachment / detachment position Q, a drum attachment / detachment device 5 for attaching or detaching the shaft of the cable drum (3A to 3F) to or from the distal end portion of the arm 23 and the rotating rail 28 is provided. The drum detaching device 5 employs a drum shaft that can be supported by a cylinder (a pair of left and right) 51 as shown in FIG. The circular rail 28 is provided with a notch 52 at the drum attaching / detaching position Q, and the notch 52 can be opened and closed by a lid 53 provided at the upper end portion of the cylinder 51. Then, disengaging the cable drum from the circulation rail 28 and the arm 23 is in a state of being positioned a cable drum (Fig. 4, reference numeral 3 B) in the drum desorption position Q (drum shaft is resting on the lid 53) By reducing the cylinder 51, the drum shaft can be moved downward while being guided by the inclined guide 54 while being placed on the lid 53, and the cable drum can be detached from the drum attaching / detaching position P. Moreover, what is necessary is just to perform in the reverse order to the above at the time of drum mounting | wearing.

  The drum circulating device 2 needs to control the drive amount so that one designated cable drum (3A to 3F) stops at the drum use position P or the drum attachment / detachment position Q accurately. Done in the device. In this embodiment, the cable drums 3A to 3F are circulated in both the forward direction (for example, the left direction) and the reverse direction (for example, the right direction), and the drum use position P and the drum attachment / detachment position Q. In general, four types of control are performed with the relationship that can be stopped at two locations. When the cable drums are moved to the drum use position P, the cable drums 3B, 3C, and 3D move counterclockwise (normally) in the state shown in FIGS. The cable drum is designed to move clockwise (reverse). The 3A cable drum does not move. When each cable drum is moved from the state shown in FIGS. 1 and 2 to the drum attachment / detachment position Q (the state shown in FIGS. 4 and 5), each of the cable drums 3B, 3C, and 3D makes a left turn (normal turn). The cable drums 3E, 3F, and 3A move clockwise (reverse rotation).

  This control device uses four sets of detector sets, each of which includes one deceleration detector (8A to 8D) and one stop detector (9A to 9D). That is, in this embodiment, in each detector (8A to 8D, 9A to 9D) shown in FIGS. 1 to 2 and 4 to 5, as shown in FIG. ) When detecting at the drum use position P, when stopping at the drum use position P when 9A is rotating forward (one set of 8A and 9A), when 8B is rotating backward ( Deceleration detector for stopping at the drum use position P during right turn), Stop detector for stopping at the drum use position P when 9B is turning backward (one set of 8B and 9B), 8C for positive Deceleration detector when stopping at the drum attachment / detachment position Q during laps, Stop detector when stopping at the drum attachment / detachment position Q when 9C is rotating forward (one set of 8C and 9C), 8D during reverse laps Stop at the drum removal position Q Decelerating detectors, 9D reverse circulation stop detector when stopping the drum removable position Q at the time (8D and one set 9D), a.

  Further, in each detector set, a deceleration detector (8A to 8D) is positioned on the upper side of each rotation direction of the rotating body 21, and a stop detector (9A to 9D) on the lower side. Is placed so that The interval between one set of detectors (deceleration detector and stop detector) is suitably about 5 ° to 15 ° (10 ° in the illustrated example) in the rotation direction. These detectors are fixedly mounted at fixed positions in the vicinity of the outer surface of the rotator 21, and when the rotator 21 rotates, cams 24, provided on the arms 23, 23,. 24 .. are sequentially operated.

  As shown in FIG. 3, the operation unit 62 of the controller 61 includes an engine operation / stop switch 63, drum selection switches 64A to 64F for selecting a cable drum to be called, a drum stop position selection switch 65, a cable feeding switch 66, a cable Various switches such as a winding switch 67, a drum attachment / detachment switch 68, and an emergency stop switch 70 are provided.

  Further, as shown in FIG. 6, the control device includes a drum circumference control means 6 for controlling a predetermined cable drum as specified based on the contents specified by various switches, and detectors (8A to 8D, A total of eight counters (deceleration detector counters 78A to 78D and stop detector counters 79A to 79D) that individually count the number of counts of each of 9A to 9D, and any two counters as described later Discriminating means 71 for discriminating whether or not the difference between the accumulated counts of “2” becomes “2”, a deceleration signal output means 72 for decelerating the motor 26 of the rotating body driving device 25, and a stop signal output for stopping the motor 26 Means 73 and error notifying means 7 for notifying which detector is abnormal when there is an abnormal detector as will be described later.

  The drum rotation control means 6 selects a position (drum use position P or drum attachment / detachment position Q) at which the cable drum is stopped by the drum stop position selection switch 65, and which cable drum (3A to 3F) is selected by the drum selection switches 64A to 64F. Is selected, the set of detectors that meet those selection conditions will function, and the other six detectors will operate (although each counter counts), and the desired control will be achieved. It is set so as not to affect.

  For example, in order to call a 3D cable drum to the drum usage position P from the state shown in FIGS. 1 and 2, the drum usage position is selected by the drum stop position selection switch 65 (FIG. 3), and the drum selection switch 64D is turned on. At that time, a deceleration detector 8A (deceleration detector counter 78A) and a stop detector 9A (stop detector counter 79A) function. Then, when the motor 26 of the rotating body driving device 25 is operated in the normal rotation (left rotation) and each cam 24 on the upper rotation side operates the deceleration detector 8A three times (the third cam 24 is decelerated). At the time of reaching the detector 8A), a deceleration signal is generated from the deceleration signal output means 72 via the drum rotation control means 6 to decelerate the motor 26, and then the third cam 24 is also detected for stopping. At the time when the device 9A is operated, the motor 26 stop signal is issued from the stop signal output means 73 through the drum circumference control means 6 to stop the motor 26. At this time, the designated 3D cable drum is accurately stopped at the drum use position P.

  Also, for example, in order to call the 3F cable drum to the drum attachment / detachment position Q from the state of FIGS. 1 and 2, the drum attachment / detachment position is selected by the drum stop position selection switch 65, and the drum selection switch 64F is selected. , A deceleration detector 8D (deceleration detector counter 78D) and a stop detector 9D (stop detector counter 79D) function. Then, when the motor 26 of the rotating body driving device 25 operates in the reverse rotation (right rotation) and each cam 24 on the upper rotation side operates the deceleration detector 8D twice (the second cam 24 is decelerated). The motor 26 is decelerated when it reaches the detector 8D), and then the motor 26 is stopped when the second cam 24 operates the stop detector 9D. At this time, the designated 3F cable drum is accurately stopped at the drum attachment / detachment position Q (the 3F cable drum is located at the position 3B in FIGS. 4 and 5).

  In this control device, as described above, a set of detectors functioning with the direction of rotation of the cable drum depending on the calling position of the cable drum (whether it is the drum use position P or the drum removal position Q) and the initial position of the calling cable drum. (Two counters) are determined, and a desired operation is performed based on these conditions.

  By the way, if one of the functioning detector sets is abnormal in the stop detectors (9A to 9D), each cable drum decelerates when the deceleration detectors (8A to 8D) are operated a predetermined number of times. Although it goes around, it keeps going around.

  Therefore, in the control device of this embodiment, when any one of the functioning detector sets is abnormal, the motor 26 of the rotating body driving device 25 is forcibly stopped by the following means. ing.

  That is, the control device is provided with a discriminating means 71 as shown in FIG. This discriminating means 71 is provided with each counter (for example, 78A deceleration detection) for counting the number of counts of each detector (for example, 8A deceleration detector and 9A stop detector) to be functioned. A difference between the accumulated counts of the detector counter and the 79A stop detector counter) is “2” or more, and if the difference between the accumulated counts is “2” or more, the stop signal output means 73 (actuating a stop signal to the motor 26).

  Therefore, if one of the detector sets is abnormal, each cable drum 3A to 3F (each cam 24) divides by 2 counts, and the counter count on the abnormality detector side is counted. Is “0”, the count number of the counter on the normal detector side is “2”, and as a result, the difference in the cumulative count number of each counter is “2”. The stop signal output means 73 is activated (a stop signal is issued). When a stop signal is issued from the stop signal output means 73, the motor 26 of the rotating body driving device 25 is immediately stopped (the circulation of each cable drum is automatically stopped).

  As described above, when any detector in the functioning detector set is abnormal, if the rotating body driving device 25 (motor 26) is forcibly stopped based on the abnormality, the cable drum rotates. The trouble of continuing to do so can be prevented in advance.

  Further, in the control device of this embodiment, even if both of the one set of detectors to function are in an abnormal state, the accumulated count number of each abnormal detector counter (“0” count ”) and others Whether the difference from the accumulated count of the normal detector counter becomes “2” or more is discriminated by the discriminating means 71, and when the difference between the accumulated counts becomes “2”, In the same manner as described above, the motor 26 of the rotating body driving device 25 is immediately stopped.

  Furthermore, in the control device of this embodiment, even if any of the total of eight detectors (8A to 8D, 9A to 9D) is abnormal (even if it is a detector other than the detector set to function). When the difference between the cumulative count number of the counter of the abnormality detector (“0” count ”) and the cumulative count number of the counters of other normal detectors becomes“ 2 ”or more, the determination means 71 A discrimination signal is issued from

  Further, the control device of this embodiment is provided with error notifying means 7 for notifying an abnormality detector when any of the detectors has an abnormality detector. That is, when the discriminating means 71 discriminates that the difference between the cumulative count numbers of the counters is “2” or more, the error informing means 7 sends a signal from the discriminating means 71 to identify the detector with the “0” count. And the error notification means 7 notifies the abnormality detector.

  This error notification means 7 is installed at an appropriate position of the vehicle 1 (in the example of FIG. 1, the outer surface of the side plate 13). As the error notification means 7, for example, a liquid crystal display unit that displays a code number indicating which detector is an abnormality detector or a plurality of indicator lights (the same number as each detector) is used. For example, an abnormality detector can be turned on and a voice can be used to notify which detector is abnormal.

Thus, when there is an abnormality detector, when so as to notify the abnormality detector error notification means 7, what detector is abnormal among Investigation be hand becomes unnecessary at the time of maintenance work, maintenance Work time can be shortened.

  Further, in this control device, when the deceleration detector 8A is abnormal in one set of the deceleration detector (for example, 8A) and the stop detector (for example, 9A), the operation of the stop detector 9A is operated. Therefore, even if the stop detector counter 79A counts the count necessary for the stop, the operation signal is not output from the drum circumference control means 6 to the stop signal output means 73.

  The reason for this is that, in FIGS. 1 and 2, for example, when the cable drum 3B is called to the drum use position P, the stop detection of the stop detector 9A is performed when the moving distance of the cable drum 3B is only one count. When the counter 79A counts up, the stop signal output means 73 issues a stop signal via the drum circumference control means 6, and the rotating body drive device 25 (motor 26) stops without the discrimination means 71 operating. In this case, however, the error notification means 7 is not notified of the error.

  Therefore, in this control device, when the deceleration detector (8A to 8D) is abnormal, even if the designated cable drum is close to the target position (the moving distance is 1 count), the cable drum is counted 2 times. Circulate continuously for the number of minutes (the difference between the accumulated counts of the counters is “2”), thereby operating the discriminating means 71 to stop the rotating body drive device (motor 26) and the error. The function of notifying the abnormality detector to the notification means 7 is generated.

  In the cable extension wheel of the above embodiment, as the drum circulating device 2, the cable drums 3A to 3F are attached to the arms 23, 23,... Of the rotating body 21, and the rotating body 21 is rotated. Although each cable drum is made to circulate, in other embodiments, as the drum circulator 2, for example, a chain drive type as shown in Japanese Utility Model Publication No. 3-4095 is adopted. May be.

It is a side view of a cable extension wheel provided with a control device of an example of the present application. It is function explanatory drawing in the state which has the cable drum in the drum use position in the cable extension vehicle of FIG. It is a front view of the operation part in the control apparatus of FIG. 1 is a partial side view in the state where the cable drum in the cable extension wheel is in the drum detachment position. It is a function explanatory view in the state of FIG. It is a block diagram of a control device of an embodiment of the present application.

Explanation of symbols

  1 is a vehicle, 2 is a drum circulating device, 3A to 3F are cable drums, 4 is a drum driving device, 5 is a drum detaching device, 6 is a drum rotating control means, 7 is an error notification means, and 8A to 8D are deceleration detectors. , 9A to 9D are detectors for stopping, 21 is a rotating body, 25 is a rotating body driving device, 61 is a controller, 62 is an operation unit, 64A to 64F are drum selection switches, 65 is a drum stop position selection switch, and 71 is a discrimination. Means, 72 is a deceleration signal output means, 73 is a stop signal output means, 78A to 78D are deceleration detector counters, and 79A to 79D are stop detector counters.

Claims (5)

In a cable extension vehicle that allows a plurality of cable drums to circulate synchronously by a drum circulator on the vehicle, and that the cable drum cable can be fed and wound at the drum use position,
Each time each cable drum passes, a detector set including a deceleration detector and a stop detector for detecting the passage of each cable drum, and the count number of the deceleration detector is counted. A deceleration detector counter and a stop detector counter for counting the count of the stop detector, and the deceleration detector counter while one designated cable drum moves to the drum use position And a drum rotation control means for stopping the drum rotation device after decelerating the drum rotation device based on the number of times each of the stop detector counters counts,
The discrimination means outputs a discrimination signal when the difference between the cumulative count number of the deceleration detector counter and the cumulative count number of the stop detector counter becomes 2 or more. The drum orbiting device is stopped when the
A control device for a cable-drawing vehicle characterized by that. In a cable wire-drawing vehicle in which a plurality of cable drums circulate synchronously by a drum circulator on the vehicle, and the cable drum can be attached to or detached from the drum circulator at a drum detachment position.
Each time each cable drum passes, a detector set including a deceleration detector and a stop detector for detecting the passage of each cable drum, and the count number of the deceleration detector is counted. A deceleration detector counter and a stop detector counter for counting the count of the stop detector, and the deceleration detector counter while one designated cable drum moves to the drum attachment / detachment position And a drum rotation control means for stopping the drum rotation device after decelerating the drum rotation device based on the number of times each of the stop detector counters counts,
The discrimination means outputs a discrimination signal when the difference between the cumulative count number of the deceleration detector counter and the cumulative count number of the stop detector counter becomes 2 or more. The drum orbiting device is stopped when the
A control device for a cable-drawing vehicle characterized by that. In claim 1 or 2,
While the drum circulating device allows each cable drum to circulate in both forward and reverse directions, the designated cable drum is moved to the target position in a short route,
Two sets of detector sets, one for decelerating detectors and one for stopping detectors, that function when the cable drum rotates in the forward direction and one that functions when the cable drum rotates in the reverse direction are used.
A control device for a cable-drawing vehicle characterized by that. In any one of Claim 1 to 3,
Among a set of deceleration detectors and stop detectors that should function, when there is an abnormality detector that the counter does not count even though the cable drum has passed, error notification means that notifies the abnormality detector Provided,
A control device for a cable-drawing vehicle characterized by that. In claim 4,
In a set of deceleration detector and stop detector, if the deceleration detector does not operate normally, the stop detector counter counts the number of counts required for stop, and the drum by the stop detector The stop signal is not output to the orbiting device.
A control device for a cable-drawing vehicle characterized by that.

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