JP4416181B2 - Torsion prevention damper remover for overhead power transmission lines - Google Patents

Description

  The present invention relates to a machine for automatically removing a torsion prevention damper that is attached to an overhead power transmission line at an interval.

As shown in FIG. 6, this type of twist preventing damper 11 includes a presser bolt 14 extending obliquely upward at a central portion of a double weight (weight connection body) 12 extending horizontally and a hook-type hook-shaped transmission line clamp 13. As shown in FIG. 1 and FIG. 2, the overhead transmission line 10 has a structure in which a proximal end portion is attached . The double weight 12 is attached so as to extend to the overhead power transmission line 10 immediately below the overhead power transmission line 10 by hugging the overhead power transmission line 10 by closing to the presser bolt 14 via 15 (for example, Patent Document 1). , See Patent Document 2).

However, it is necessary to remove this twist-prevention damper from the overhead power transmission line when replacing the overhead power transmission line. Considerable measures must be taken to secure the system, and efficient work is difficult.
JP-A-8-19151 JP-A-5-146018

  An object of the present invention is to automate the removal of the torsion prevention damper from the viewpoint of ensuring safety and improving the efficiency of the removal work of the torsion prevention damper.

According to this invention, the above-described problem is, as described in claim 1 of the claims, between a plurality of electric wheels attached to the upper part of the machine frame with a space in the front-rear direction and between the front-rear wheels. A damper removing device installed on the base of the machine frame facing the center, a bolt removing device installed on the base of the machine frame on one side of the damper removing device, and a damper removing device attached to the base of the machine frame It consists of a damper receiver having a receiving opening at the lower part of the device and the bolt removing device and its peripheral part, a sequential control device and a battery installed in the machine frame,
The damper removing device has at least a vertical guide hole extending up and down at an intermediate portion in the vertical direction and extending up and down at a substantially 90 ° inclination around the axis, and a weight extending upward to the front end portion or the rear end portion of the upper end. A cylindrical base post having a tray stopper, and a guide pin that slides and engages with the vertical guide hole of the cylindrical base post on the lower side portion, which is mounted concentrically in the cylindrical base post so as to be movable up and down and rotatable about an axis. At the upper end of the lower part of the lift, the front or rear end of the cylindrical base post is inclined to the back or front and lower in a state of contact with the weight receiving tray stopper, and horizontally other than the lower part of the lift An electric cylindrical lifting column having a channel-shaped weight receiving tray supported in a pivoted state at the rear end or the front end so as to extend;
The bolt removing device includes a wrench advancement / retraction base having an advance / retreat guide extending from a side portion of the damper removal device to an upper end portion or a directly upper portion thereof, and a damper removal device along the advance / retreat guide of the wrench advancement / retraction base. Electric wrenches that can be moved forward and backward, and a wrench box that is supported by the wrench advancement and retraction, extends in the advance and retreat direction of the wrench advancement and retractable in the forward and backward direction, and spring-biased in the extension direction An electric box wrench with a wrench shank and a bifurcated shape attached to the wrench advancement and extending along the box wrench and facing the outer peripheral surface of the top of the wrench box when the wrench shank is extended at the tip. wrench box latching in of and extended state always wrench shank has a wrench box latching hook The lower end of the hook comes into contact with the outer peripheral surface of the upper part of the wrench box, and in the contracted state of the wrench shank, the inner corner (inner corner) of the wrench box retaining hook comes into contact with the upper outer peripheral surface of the wrench box. The upper part of the box wrench mounted on the wrench advancement / retraction base and the wrench advancement / retraction base that is unbalanced in the forward / backward moment that swings forward and backward so that the box latch hook moves down to the state immediately before the wrench box. The lever swing guide with a lever rear end follower guide edge including a rear portion extending forward and backward from the box wrench proximity portion and a front portion extending upward from the box wrench proximity portion toward the front, and the wrench box latching When the lever moves forward and backward, the lever rear end tracking guide edge at the rear end of the wrench box latch lever Rear from via the following engagement against the front of, before the state facing the top of the outer peripheral surface of the wrench box against the front傾揺power wrench box latching hook wrenches box latching lever wrench box latching lever With the tilting and swinging force, the wrench box descends to a state where it abuts on the outer surface of the wrench box. A lever swing guide that swings so that the wrench box latching hook rises to the state facing the outer peripheral surface of the upper part of the wrench box against the forward tilt swinging force of the wrench box latching lever,
Sequential control device includes operation signal from remote controller or machine frame mounting controller, damper detection signal by damper detection sensor mounted on the position where double weight end of machine frame torsion prevention damper can be detected, wrench advance / retreat Rotation drive of wheel and damper detection based on wrench advance detection sensor and wrench advance detection signal from wrench advance detection sensor and wrench reverse detection sensor attached to the part where the end of wrench advancement / retraction base of base base can be detected Rotation stop of wheel based on sensor detection signal, initial rising of cylindrical lifting column of bolt removal device by predetermined amount, advancement of wrench advancement / retraction base of bolt removal device, advancement of wrench advancement / retraction base based on detection signal of wrench advancement detection sensor Stop, box wrench operation and wrench advance / retreat backward, wrench advance / retreat backward based on detection signal of wrench reverse sensor Stop, it becomes configured to control the late rise and the operation of descent of the cylinder lift columns of the damper removal device sequentially solved by removal machine twist prevention damper overhead power transmission lines.

  When removing the torsion prevention damper by the torsion prevention damper remover according to the present invention, first, based on an operation signal (start signal) from a remote operation device (generally a wireless operation device) or a machine frame installation operation device, The front and rear wheels are driven to rotate and move forward along the overhead power transmission line. This forward movement is stopped based on the detection signal of the torsion prevention damper of the damper detection sensor after the front wheel has passed over the upper part of the transmission line clamp of the torsion prevention damper to be removed. At this time, the transmission line clamp of the torsion preventing damper is located at the center between the front and rear wheels, and the damper removing device is located just below the torsion preventing damper. Subsequently, on the basis of the control signal, the cylindrical lifting column of the damper removing device raises a predetermined height (initial increase) in the middle region of the lifting. As a result, the torsion prevention damper is supported in a state where the double weight is fixedly supported by the weight receiving tray and then lifted to a predetermined height, so that the head of the presser bolt is in a damper positioning state in which the head of the bolt removing device faces the wrench box of the box wrench. Become.

Next, the wrench advancement / retraction base of the bolt removing device advances toward the torsion prevention damper, and the advancement is stopped based on the detection signal of the wrench advancement detection sensor. In the final stage of the forward, while being pressed rearward by fitting the head of the bolt holding wrench box lug wrench, the wrench shank against the spring to contract (retreat), followed by the rear end portion The lever wrench hanging hook at the tip of the wrench box hanging lever that has moved forward and engaged forward and backward from the rear edge to the front of the lever trailing edge tracking guide edge With the forward tilting and swinging force of the lever, the inner vicinal part is lowered to the front part of the wrench box until it comes into contact with the outermost surface part of the uppermost part of the wrench box, and the wrench shank is held in the contracted state. After that, the wrench shank rotates a predetermined amount by operating the electric box wrench to loosen the presser bolt.At the same time, the advance / retreat screw shaft reverses, the wrench advancement / retreat base moves backward, and the presser bolt is removed from the screw hole of the transmission line clamp. Pull out.

While the wrench advancement / retraction base moves backward, the rear end of the wrench box latching lever is moved forward and swinging forward by the front edge of the lever rear end follower guide edge and from the rear to the rear. The wrench box latching hook is lifted to the state where it faces the outer peripheral surface of the upper part of the wrench box , and the wrench shank in the contracted state is instantly extended by the spring force. The head of the bolt is detached from the wrench box. As a result, the presser bolt falls by its own weight and is accommodated in the lower damper receiver.

  When the wrench advance / retreat base moves backward, the reverse rotation of the advance / retreat screw shaft stops based on the detection signal of the wrench reverse detection sensor. After this, the cylindrical lifting column of the damper removing device is engaged with the guide pin and the vertical guide hole extending straight up and down, together with the torsion preventing damper (ie, the damper main body) from which the presser bolt is removed, and the upper region of the lifting and lowering. After ascending straight up to just before, in the upper region of the ascending / descending, it rises while rotating by approximately 90 ° due to the engagement between the guide pin and the vertical guide hole extending at an inclined gradient around the approximately 90 ° axis. As a result, the transmission line clamp is completely detached from the overhead transmission line.

  Subsequently, the elevating screw shaft is reversed, and the cylindrical elevating column descends with the damper body while reversely rotating the upper region of the elevating operation, and then descends straight in the intermediate region of the elevating operation. When this descending enters the lower part of the ascending / descending, the weight receiving tray comes into contact with the weight receiving tray stopper at the front end portion or the rear end portion and is restrained from descending, so that it tilts backward or downward. As a result, the damper main body slides back or forward via the double weight, is received in the damper receiver, and the removal of the target anti-twisting damper is completed.

  In the present invention, as described in claim 2 of the claims, a transmission line fitting groove in which the transmission line cannot be detached when the transmission line clamp of the torsion prevention damper is engaged is formed at the center in the width direction of the wheel. It is desirable to provide it.

Further, as described in claim 3 of the claims, it is preferable to provide a groove-shaped damper adjusting weight guide extending in the front- rear direction of the lower part of the front and rear wheels at the middle part in the vertical direction of the machine frame.

  Further, as described in claim 4 of the claims, it is desirable that a plurality of small rollers are arranged in a row at the front and rear intervals on the inner bottom portion of the weight receiving tray.

  Further, as described in claim 5, the pair of power transmission lines are connected to the wrench advancement / retraction base, with both sides of the wrench shank extending in the advancement / retraction direction of the wrench advancement / retraction base and having a bifurcated transmission line clamp at the tip. It is desirable to install a stop arm.

  Furthermore, as described in claim 6, the guide chute capable of guiding the torsion prevention damper from which the presser bolt and the presser bolt are removed to the damper receiver adjacent to the damper removing device and the bolt removing device. It is desirable to provide.

  According to the twist preventing damper removing machine according to the first aspect of the present invention, since the twist preventing damper is automatically removed as described above, there is substantially a safety problem for the worker. Does not occur and efficient removal is possible.

  According to the transmission line fitting groove configuration of the wheel according to claim 2 of the claims, it is possible to stably travel on the transmission line, including overcoming the transmission line clamp portion of the torsion prevention damper.

  Further, according to the installation configuration of the damper orientation weight guide according to claim 3, the weight guide is engaged with the double weight, and the twist (tilt) in the lateral (left and right) direction is reduced. In order to correct, the anti-twisting damper extends straight back and forth along the transmission line when positioned between the front and rear wheels. As a result, it is possible to properly perform the positioning operation to the center between the front and rear wheels, which are the removal positions, and the support operation of the double weights by the weight receiving tray at the upper end of the cylindrical lifting column.

  Further, according to the arrangement of the small rollers in the inner bottom portion of the weight receiving tray according to claim 4 of the claims, the damper can be easily slid down without increasing the inclination angle of the weight receiving tray.

  Moreover, according to the installation structure of the cable latching arm in the wrench advancement / retreat base according to claim 5, the positioning operation with respect to the presser bolt of the electric box wrench, and therefore the fitting of the presser bolt with the head of the wrench box. The operation and the loosening operation of the presser bolt can be performed accurately.

  According to the installation configuration of the guide chute according to claim 6 of the claims, the presser bolt and the presser bolt can be accurately guided toward the damper receiver and accommodated after the twist prevention damper has been removed. .

  A preferred embodiment of a torsion preventing damper remover according to the present invention will be described below with reference to the drawings.

  The illustrated form is a reversible type that can be used with the front and back reversed, and the machine frame 16 includes an upper frame 17 extending forward and backward, a pair of front and rear vertical frames 18 extending downward from front and rear ends of the upper frame 17, When viewed from the front, which is composed of a lower frame (base frame) 19 extending from the lower end of each vertical frame 18 to the left and right and front and rear, it is an inverted T shape and viewed from the side, is a square shape.

  The electric wheel 21 is a type in which a reversible electric motor 22 is directly connected, and is supported on the left side of the upper part of each of the front and rear vertical frames 18 via a wheel support arm 24 extending in the front and rear directions so as to be rotatable two by two. Each has a transmission line fitting groove 23 at the center in the width direction.

  A pair of weight guides 25 are attached to the middle part of each of the front and rear vertical frames 18 so as to extend right and left at right and left intervals directly below the wheel support arms 24. At the rear end of the front weight guide 25 and the front end of the rear weight guide 25, the front ends of the weight guide 25 are spaced apart from each other by a distance larger than the left and right distances of the weight guide 25. A pair of sensor support arms 26 extending to positions facing each other with an interval equivalent to the length of the weight 12 is attached, and at the tips of each pair of sensor support arms 26, photoelectric type each composed of a light emitter and a light receiver. A damper detection sensor 27 supports each end of the double weight 12 so that it can be detected.

  The damper removing device 30 is installed on a base box 31 mounted on a base frame 19 on the left side just below the center between the front and rear wheels 21, extending an intermediate part up and down and an upper part 90 around an axis. In a cylindrical base pillar 32 having a vertical guide hole 33 inclined in the vertical direction, a guide pin 35 is fixed to an intermediate lower adjacent portion, and a groove-shaped weight receiving tray 37 that extends back and forth is supported at the upper end. An electric screw type cylindrical lifting column 34 is mounted concentrically.

  The weight receiving tray 37 is pivotally attached to the front end of the support plate 36 that extends forward and backward with the front end fixed to the upper end of the cylindrical elevating column 34 via a hinge pin 38, and is supported and engaged with the support plate 36 at the rear end portion. A leg abutment pin 39 and a stopper abutment plate 40 projecting sideways are attached to the stopper abutment plate 40. When the cylindrical elevating column 34 is located in the lower area of the elevating and lowering, the upper end of the cylindrical base column 32 is attached. A stopper pin 41 erected at the rear part comes into contact with the stopper pin 41, and can be inclined forward and downward. In addition, the weight receiving tray 37 has a plurality of needle rollers 42 as small rollers arranged in the front-rear direction on the inner bottom (see FIG. 3).

  As shown in FIG. 1, the shaft center portion of the cylindrical base column 32 and the cylindrical elevating column 34 is provided with an elevating screw shaft 43 extending vertically from the bottom of the base box 31. An elevating nut (elevating female screw member) 46 that engages with the elevating screw shaft 43 is attached to the shaft center of the lower end portion. The elevating screw shaft 43 and the elevating nut 46 are attached to the lower end portion of the elevating screw shaft 43. Together with the reversible electric motor 45 installed on the box-shaped base 31 adjacent to the cylindrical base column 32 connected through the chain mechanism 44, an electric means for the cylindrical lifting column 34 is configured.

The bolt removing device 50 is installed adjacent to the right side of the damper removing device 30 on the base frame 19 on the right side based on the wrench advancement / retraction base 51. That is, as shown in FIGS. 2 and 4, on the wrench advance / retreat base 51 , a pair of wrench advance / retreat side guides 52 as advance / retreat guides each having a guide groove 53 that inclines to the left upward of the inner wall portion. The guide grooves 53 are slidably engaged with guide lugs (ear portions) 56 provided on both sides of the electric screw type wrench advancement / retraction base 55. Advancing / retracting screw shaft 58 connected via a chain mechanism 60 to a reversible electric motor 59 attached to the front end of the side guide 52 extends between the side guides 52 along the side guide 52. The wrench advancement / retraction base 55 is motorized by engaging with a screw hole 57 formed at the center.

A wrench shank with a wrench box 65 is urged on the wrench advance / retreat platform 55 through a wrench mounting plate 61 and a spring 66 mounted on a wrench shaft 63 extending forward and backward so as to be always extended forward. A pair of electric (with a reversible electric motor) box wrench 62 having 64, a pair of wrench shanks 64 extending in the front-rear direction across the wrench shank 64 and having a forked transmission line clamp 68 at the tip. A transmission line latching arm 67 is attached, and an intermediate part of the pair of transmission line latching arms 67 is formed such that the upper part of the box wrench 62 between the transmission line latching arms 67 extends back and forth and is bifurcated at the tip. An intermediate portion of a wrench box latch lever 69 having a wrench box latch hook 70 is pivotally supported via a pivot pin 69b (see FIG. 7) . In this wrench box latching lever 69, a weight 71 is attached to the wrench box latching hook 70 at the tip, so that when the wrench shank 64 is always extended, the lower end of the wrench box latching hook 70 is the outer periphery of the upper part of the wrench box 65. When the wrench shank 64 is contracted, the vicinity of the inner corner of the wrench box retaining hook 70 (the lower surface near the inner corner) abuts the outermost surface of the uppermost portion of the wrench box 65, and the wrench box is latched. The hook 70 has an unbalanced form of a forward and backward swinging type front-rear moment that can be lowered to the front part of the wrench box 65 (see the phantom line in FIG. 5) .

A gate-type guide mounting frame 72 that straddles the box wrench 62 is attached to the middle portion of the wrench advancement / retraction side guide 52 in the length direction, and the guide mounting frame 72 is placed in the portion straddling the box wrench 62 (upper part in the gate) . Includes lever rear end follower guide edges 73a and 73b that extend at an upward slope so that the front part is separated from the box wrench 62 toward the front and the rear part extends horizontally toward the rear toward the box wrench 62. An inverted trapezoidal lever swing guide 73 deformed when viewed from the side is attached (see FIGS. 1 and 7) . With respect to the lever rear end tracking guide edge of the lever swinging guide 73, the rear end portion 69a of the wrench box latching lever 69 is the initial position of the wrench advancement / retraction base 55 from the standby position (see FIGS. While in the forward movement position, it engages with the rear 73b, and the lower end of the wrench box retaining hook 70 faces the outer peripheral surface of the upper part of the wrench box 65 in the forward movement position due to the extension of the wrench box 64. (In particular, for the sake of simplicity, the lower end of the box wrench latching hook 70 is shown as if it is in contact with the outer peripheral surface of the wrench box 65.) during the subsequent middle wrench retractable stand 55 forward, engages the left to the rear of 73b before傾揺power wrench box latch lever 69 to the front of the 73a, wrench After the hook hook 70 is brought into contact with the outer peripheral surface of the upper portion of the wrench box 65, the front 73 a is released and the wrench box hook lever 69 is tilted further forward by the wrench box 65. Get blocked. After that, when the wrench advancement / retreat base 55 is moved forward most, the wrench box retaining hook 70 has its inner corner near the uppermost portion of the wrench box 65 due to contraction and retraction against the spring 66 of the wrench shank 64 with the wrench box 65 as described later. While being in contact with the outer peripheral surface portion, it is possible to descend to the front portion of the wrench box 65 (see the phantom line in FIG. 5), while when the wrench advancement / retraction base 55 is retracted , the rear end portion 69a of the wrench box latching lever 69 is in the middle. The front wrench hook 70 is engaged with the front portion 73a and the rear portion 73b, and the front wrench box hooking hook 70 is moved from the front portion of the wrench box 65 against the forward tilting swinging force of the wrench box hook lever 69. 65 (see the solid line in FIG. 5) .

  Further, a wrench advance detection sensor 74 and a wrench retraction detection sensor 75, which are photoelectric sensors each composed of a light emitter and a light receiver, which are opposed to each other, are attached to the upper ends of both side guides 52 at intervals in the length direction. Thus, the forward and backward movement of the wrench advance / retreat base 55 to a predetermined position is detected through the detection of the rear end of the wrench advance / retreat base 55.

As shown in FIG. 1 and FIG. 2, the base frame 19 of the machine frame 16 is suspended by a flexible mesh bag-made damper receiver 76 that opens over substantially the entire area of the machine frame 16, and the damper removing device 30. A duct-shaped guide chute 77 for sliding down the damper main body extending downward from the vicinity of the upper end portion of the cylindrical base pillar 32 toward the damper receiver 76 is installed on the base frame 19 adjacent to the front portion. A guide chute 78 for sliding down the presser bolt facing the guide chute 77 is attached to the front end of the wrench advance / retreat side guide 52 of the bolt removing device 50.

  Further, the base frame 19 of the machine frame 16 includes a receiver with an antenna capable of receiving an operation signal transmitted from a wireless remote control device (transmitter) together with a sequential control device main body and main operation (control). A control unit (control box) 79 provided with a panel and a battery 80 are installed, and a start button 82 and an emergency stop button 83 for manual operation are provided at the upper end of the vertical frame 18 on the rear side of the machine frame 16. An auxiliary operation panel 81 having the above is attached.

  The illustrated form is generally configured as described above, and the front and rear wheels 21 are driven forward by the electric motors 24 based on the start operation signal from the start button 82 of the remote controller or the auxiliary operation panel 81. The electric motor 24 is moved forward along the overhead power transmission line 10, and the driving of each electric motor 24 is stopped by the detection signal at the front end of the double weight 12 of the torsion prevention damper 11 by the damper detection sensor 27, and positioning with respect to the torsion prevention damper 11 is performed. Thereafter, on the basis of the next control signal, the lifting screw shaft 43, which is the electric means of the cylindrical lifting column 34 of the damper removing device 30, is rotated forward by a predetermined amount via the initial predetermined drive of the electric motor 45, and the cylindrical The lifting column 34 is lifted from the state shown in FIG. 2 by a predetermined height in the middle region of lifting, so that the torsion prevention damper 11 is supported by the weight receiving tray 37 and the double weight 12 is supported. Lift predetermined height, as shown in FIG. 1, the anti-twist damper 11, thus the positioning of the pressing bolt 14 against lug wrench 62 of the bolt removal device 50.

Next, the forward / backward screw shaft 58 constituting the electric means of the wrench advance / retreat base 55 of the bolt removing device 50 is rotated forward from the electric motor 59 via the chain mechanism 60 to move the wrench advance / retreat base 55 from the standby position to the twist preventing damper 11. It moves forward and stops based on the detection signal of the wrench advance detection sensor 74. During this time, the forward tilting swinging force of the wrench box retaining hook 71 is established through the engagement of the lever trailing end tracking guide edge 73b to 73a of the lever swinging guide 73 of the rear end 69a of the wrench box retaining lever 69. While the lower end of the wrench box 65 is in contact with the outer peripheral surface portion of the wrench box 65 at the most forward position, the tip of the electric box wrench 62 is pressed backward by fitting with the head of the wrench box 65 of the wrench box 65 , The wrench shank 64 with the wrench box 65 is retracted through contraction against the spring 66. As a result, the wrench box latching hook 70 of the wrench box latching lever 69 has an inner corner near the outer periphery of the uppermost part of the wrench box 65. in contact with the state (see FIG. 5 phantom) to face the head of the holding bolts 14 immediately before end of the wrench box 65 And lowered to sandwich the washer 15) that holds the wrench shank 64 with wrenches box 65 in the retracted position. Thereafter, the wrench shaft 63 and the wrench shank 64 with the wrench box 65 are rotated by the operation of the box wrench 62, the presser bolt 14 is loosened, and the forward / backward screw shaft 58 is reversely rotated by the reverse drive of the electric motor 59. 55 is retracted, and the presser bolt 14 is pulled out from the screw hole of the transmission line clamp 13 of the damper body with the washer 15 attached.

While the wrench advancement / retreat base 55 is retracted to the standby position, the front 73a of the lever rear end tracking guide edge of the lever swing guide 73 of the rear end 69a of the wrench box latching lever 69, and the rear 73b of the rear end follower guide edge. Through the engagement with the wrench box, the wrench box latching hook 70 jumps up from the front part of the wrench box 65, and through the instantaneous extension by the action force of the spring 66 of the wrench shank 64 with the wrench box 65 in the contracted state , the wrench box 65 immediately advances and moves backward , so that the head of the presser bolt 14 is detached from the wrench box 65. As a result, the presser bolt 14 with the washer 15 falls from the guide chute 78 through the guide chute 77 into the damper receiver 76 by its own weight.

  When the wrench advance / retreat base 55 moves backward to a predetermined position, the backward movement stops based on the detection signal of the wrench reverse detection sensor 75. Thereafter, by the forward rotation of the electric motor 45 of the electric means of the cylindrical elevating column 34 of the damper removing device 30, the elevating screw shaft 43 is rotated forward, and the cylindrical elevating column 34, and thus the weight receiving tray 37 is moved from the state shown in FIG. After ascending straight up to just before the upper region of the ascending / descending, it ascends while rotating the upper region of the ascending / descending approximately 90 °. As a result, the damper main body on the weight receiving tray 37 rises straight until the power transmission line clamp 13 is detached from the overhead power transmission line 10, and then the power transmission line clamp 13 is detached from the overhead power transmission line 10.

  Thereafter, based on the reverse drive of the electric motor 45, the elevating screw shaft 43 is reversed, and the cylindrical elevating column 34 is lowered together with the weight receiving tray 37 and the damper body on the upper elevating area while rotating in the reverse direction. It goes down straight in the middle area. As soon as this descent enters the lower area of the lift, the weight receiving tray 37 comes into contact with the receiving stopper 41 at the rear end and tilts forward downward (see FIG. 3), so that the damper body passes through the double weight 12. Then, it slides forward and is received in the damper receiver 76 through the guide chute 77, and the removal of one of the twist preventing dampers 11 is completed.

  Of course, the present invention can be implemented in various forms, and is not limited to the above-described forms.

It is a schematic front view of the state in which the cylindrical elevating column of the preferred embodiment of the torsion preventing damper removing machine according to the present invention is initially raised. It is a schematic side view of the state before the cylindrical raising / lowering column of embodiment shown in FIG. 1 raises initially. FIG. 2 is an enlarged partial schematic view of a state in which the weight tray of the embodiment shown in FIG. 1 is inclined. FIG. 2 is an enlarged schematic view of a rear part of a wrench advance / retreat side guide, a wrench advance / retreat base, and a box wrench of the bolt removing device of the embodiment shown in FIG. 1. FIG. 2 is an enlarged schematic view of the wrench box latching hook and the front surface of the wrench box of the bolt removing device of the embodiment shown in FIG. 1, and the lowered state of the wrench box latching hook when the wrench shank is contracted is indicated by a virtual line . It is an expansion schematic of a typical example of a twist prevention damper. FIG. 2 is an enlarged partial schematic view for explaining an engagement relationship of a wrench box latching lever, a lever swing guide, and a wrench box of the embodiment shown in FIG. 1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Overhead power transmission line 11 Twist prevention damper 12 Double weight 13 Power transmission line clamp 14 Presser bolt 15 Washer 16 Machine frame 17 Upper frame 19 Base frame 21 Wheel 22 Electric motor 23 Transmission line fitting groove 25 Damper direction weight guide 27 Damper Detection sensor 30 Damper removal device 32 Cylindrical base pillar 33 Vertical guide 34 Cylindrical lifting pillar 35 Guide pin 37 Weight pan 38 Hinge pin 40 Stopper abutment plate 41 Receptacle stopper
42 Needle roller 43 Lifting screw shaft 45 Electric motor 46 Lifting nut 50 Bolt removing device 52 Wrench advancement / retraction side guide 53 Guide groove 55 Wrench advancement / retraction base 56 Guide lug 57 Screw hole 58 Advancement / retraction screw shaft 59 Electric motor 62 Box wrench 63 Wrench shaft 64 Wrench Shank 65 Wrench Box 66 Spring
67 Transmission line latching arm 68 Transmission line pinching 69 Wrench box latching lever 70 Wrench box latching hook 71 Weight 73 Lever swing guide 74 Wrench advance detection sensor 75 Wrench retraction detection sensor 76 Damper receiver 77 Guide chute 78 Guide chute 79 Control unit 80 Battery 81 Auxiliary operation panel 82 Start button

Claims (6)

A plurality of electric wheels attached to the upper part of the machine frame at intervals in the front and rear, a damper removing device standing on the base of the machine frame facing the central part between the front and rear wheels, and one side of the damper removing device A bolt removing device installed on the base of the other machine frame, a damper removing device attached to the base of the machine frame, a damper receiver having a receiving opening at a portion directly below and the periphery of the bolt removing device, and a machine frame Consists of a sequential control device and a battery installed in
The damper removing device has at least a vertical guide hole extending up and down at an intermediate portion in the vertical direction and extending up and down at a substantially 90 ° inclination around the axis, and a weight extending upward to the front end portion or the rear end portion of the upper end. A cylindrical base post having a tray stopper, and a guide pin that slides and engages with the vertical guide hole of the cylindrical base post on the lower side portion, which is mounted concentrically in the cylindrical base post so as to be movable up and down and rotatable about an axis. At the upper end of the lower part of the lift, the front or rear end of the cylindrical base post is inclined to the back or front and lower in a state of contact with the weight receiving tray stopper, and horizontally other than the lower part of the lift An electric cylindrical lifting column having a channel-shaped weight receiving tray supported in a pivoted state at the rear end or the front end so as to extend;
The bolt removing device includes a wrench advancement / retraction base having an advance / retreat guide extending from a side portion of the damper removal device to an upper end portion or a directly upper portion thereof, and a damper removal device along the advance / retreat guide of the wrench advancement / retraction base. Electric wrenches that can be moved forward and backward, and a wrench box that is supported by the wrench advancement and retraction, extends in the advance and retreat direction of the wrench advancement and retractable in the forward and backward direction, and spring-biased in the extension direction An electric box wrench with a wrench shank and a bifurcated shape attached to the wrench advancement and extending along the box wrench and facing the outer peripheral surface of the top of the wrench box when the wrench shank is extended at the tip. wrench box latching in of and extended state always wrench shank has a wrench box latching hook The lower end of the hook comes into contact with the outer peripheral surface of the upper part of the wrench box, and in the contracted state of the wrench shank, the vicinity of the inner corner of the wrench box retaining hook comes into contact with the outer peripheral surface of the uppermost part of the wrench box, A box wrench at the upper part of the box wrench attached to the wrench advancing / retreating base and a wrench advancing / retreating base wrenching lever that is unbalanced to move forward and backward so that the hook descends to the state where the hook extends to the front of the wrench box A lever swing guide with a lever rear end following guide edge including a rear part extending forward and backward and a front part extending upward from a box wrench proximity part toward the front, and a wrench box latching lever, The rear part of the guide edge of the lever rear end at the rear end of the wrench box latch lever when the wrench is moved forward and backward Through the following engagement against Luo front, before the state facing the top of the outer peripheral surface of the wrench box against the front傾揺power wrench box latching hook wrenches box latching lever wrench box latching lever傾揺The power is lowered to a state where it abuts against the outer peripheral surface of the wrench box with power, and the rear end of the wrench box latch lever at the rear end of the wrench box latching lever is engaged from the front to the rear of the following guide edge. A lever swing guide that swings so that the wrench box latching hook rises to the state facing the outer peripheral surface of the upper part of the wrench box against the forward swinging force of the wrench box latching lever,
Sequential control device includes operation signal from remote controller or machine frame mounting controller, damper detection signal by damper detection sensor mounted on the position where double weight end of machine frame torsion prevention damper can be detected, wrench advance / retreat Rotation drive of wheel and damper detection based on wrench advance detection sensor and wrench advance detection signal from wrench advance detection sensor and wrench reverse detection sensor attached to the part where the end of wrench advancement / retraction base of base base can be detected Rotation stop of wheel based on sensor detection signal, initial rising of cylindrical lifting column of bolt removal device by predetermined amount, advancement of wrench advancement / retraction base of bolt removal device, advancement of wrench advancement / retraction base based on detection signal of wrench advancement detection sensor Stop, box wrench operation and wrench advance / retreat backward, wrench advance / retreat backward based on detection signal of wrench reverse sensor Stop, it becomes configured to control the late rise and the operation of descent of the cylinder lift columns of the damper removal device sequentially remove machine twist prevention damper overhead power transmission lines.   The overhead transmission line twist prevention damper remover according to claim 1, wherein a transmission line fitting groove is provided at a central portion in a width direction of the wheel so that the transmission line cannot be detached when the transmission line clamp of the twist prevention damper is engaged. . An overhead transmission line twist prevention damper according to claim 1 or 2, wherein a groove-shaped damper orientation weight guide extending in the front- rear direction of the lower part of the front and rear wheels is provided at an intermediate part in the vertical direction of the machine frame. Remover.   The remover of the twist prevention damper of an aerial distribution line according to any one of claims 1 to 3, wherein a plurality of small rollers are arranged in the inner bottom portion of the weight receiving tray at an interval in the front-rear direction.   The wrench advancement / retraction base is provided with a pair of power transmission line latching arms extending from both sides of the wrench shank in the advancement / retraction direction of the wrench advancement / retraction base and having a bifurcated transmission line clamp at the tip. A twister-proof damper remover for overhead power transmission lines as described in Crab.   The guide chute which can guide the torsion prevention damper which removed the presser bolt and the presser bolt toward the damper receiver is provided in the adjacent part of the damper remover and the bolt remover. To remove the twist-prevention damper of the overhead power transmission line.

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