JP6109599B2 - Difficulty snow ring mounting device - Google Patents

Description

  The present invention relates to a difficult-to-snow ring attachment device, and more particularly to an apparatus for attaching a difficult-to-snow ring to an overhead line such as a power transmission line.

  As the above difficult snow ring mounting device, Patent Document 1 discloses a storage case for storing a plurality of hard snow rings with respect to a moving frame (a frame in the literature) movable along an overhead line, and the storage case. And a caulking device for fixing the difficult snow ring taken out from the cable to the overhead wire.

  The hard-to-fall snow ring connects two resin half-rings so that they form a ring in a closed position, and the ends of the half-rings are fitted together by switching the two half-rings to a closed position. It is comprised so that it may connect and a ring state may be maintained. From this configuration, the two half-ring portions are closed so as to embrace the overhead wire, and the ends of the half-ring portions are fitted and connected to each other to enable attachment to the overhead wire.

  In the difficult snow ring device of this patent document 1, the moving frame is moved along the overhead line, and when the fixed position is reached, the moving frame is stopped and the difficult snow ring of the storage case is sent to the overhead wire, and the caulking device is used to Fix the hard-to-snow ring. By repeating this operation, the difficult snow ring is attached to the overhead line at set intervals.

  Further, in Patent Document 2, a plurality of difficult snow rings are temporarily attached to an overhead line so as to be movable, and a rear end of the plurality of difficult snow rings is taken in and pressed onto the overhead line. The structure which equipped the ring clamping apparatus attached by (1) with the moving frame (in the literature, a moving apparatus) is shown.

  Even in this Patent Document 2, the structure of the difficult snow ring is the same as that of Patent Document 1, the moving frame is moved along the overhead line, the movement is stopped when reaching the fixed position, and one of the difficult snow ring is used as the overhead line. Attach by pressing. By repeating this operation, it is possible to attach the difficult snow ring to the overhead wire at set intervals.

Japanese Patent Publication No.7-1965 Japanese Examined Patent Publication No. 3-68609

  In the devices described in Patent Document 1 and Patent Document 2, the moving frame is moved along the overhead line, and every time the difficult snow ring is fixed, the traveling is stopped and the hard snow ring is sandwiched. It is attached by wearing.

  In this way, in the case of stopping the movement of the moving frame when attaching the difficult snow ring to the overhead wire, the moving frame is repeatedly started and stopped, so that not only energy consumption increases but also difficult snow arrival The interval for attaching the ring became longer and the work efficiency was also lowered.

  Also, the overhead line suspended from the transmission tower hangs down at the intermediate position of the adjacent transmission tower, so when moving the moving frame in the direction of ascending from the intermediate position of the overhead line, slip between the driven wheel and the overhead line. When it occurred, it sometimes fell into an immovable situation. For this reason, in the operation mode in which the travel of the moving frame is stopped when attaching the difficult snow ring to the overhead line, it may not be possible to move in the direction of climbing along the overhead line after the travel is stopped. There is room for improvement from the perspective of moving.

  An object of the present invention is to rationally configure a difficult snow ring attachment device capable of efficiently attaching a difficult snow ring while moving the moving frame with certainty.

A feature of the present invention is that it includes a moving frame that can travel along an overhead line, and a mounting unit that is supported by the moving frame and that attaches a hard snow ring to the overhead line at a set interval, the mounting unit including a ring supply unit A fastening portion for fastening the hard snow ring supplied from the fastening wire to the overhead wire by fastening operation, and supporting the fastening portion, and fixing a relative position between the overhead wire and the fastening portion in a situation where the moving frame travels. And a moving part for performing the fastening operation of the difficult snow ring .
The fastening part receives the hard snow ring from the ring supply part at a supplied position and sends the hard snow ring to the fastening position by a setting operation; and a force acting on the hard snow ring at the fastening position And a reciprocating operation in which the moving part is reciprocally movable in a direction along the traveling direction of the moving frame and supports the fastening part. It is the point comprised with the member and the position fixing mechanism which maintains the relative positional relationship of the said reciprocating member and the said overhead wire at the time of the fastening operation | movement of the said clamping mechanism .

According to this configuration, when the moving frame travels with respect to the overhead line, the moving part fixes the relative position between the overhead line and the fastening part, so that the fastening part is brought to a predetermined position on the overhead line while traveling the moving frame at the set speed. It is possible to fasten the difficult snow ring supplied from the ring supply unit to the overhead wire by the fastening operation of the fastening unit in the fixed state. Thereby, even when moving the moving frame along the hanging overhead line, the moving frame can be moved using the dynamic inertia of the moving frame. Therefore, it is possible to reduce the interval for attaching the difficult snow ring to the overhead line as compared with the case where the moving frame is stopped and the difficult snow ring is fastened to the overhead line.
As a result, a hard snow ring attachment device capable of efficiently mounting a hard snow ring while moving the moving frame with certainty has been constructed.
Further, at the time of fastening, the setting mechanism receives the hard snow ring from the ring supply unit at the supplied position and sends it to the fastening position. Thereafter, the clamping mechanism applies a force to the difficult snow ring and fastens it to the overhead wire. Further, the fastening mechanism is supported by the reciprocating member, and the position fixing mechanism fixes the reciprocating member to the overhead wire during the fastening operation. From these operation modes, even in a situation where the moving frame travels, the hard snow ring from the ring supply unit can be continuously fed to the overhead wire and fastened.

  According to the present invention, after the fastening operation of the clamping mechanism is completed, the return actuator returns the reciprocating operation member to return the reciprocating member to the supplied position where the setting mechanism receives the hard snow ring from the ring supply unit. A frame or the reciprocating member may be provided.

  According to this, since the reciprocating member is returned to the supply position by the driving force of the return actuator, the return operation at a high speed is enabled. As a result, even if the moving frame is run at a high speed, the fastening is realized without widening the interval between the hard snow rings fastened to the overhead wire. In addition, since the return speed of the return actuator can be set freely, the return speed of the return actuator can be set to the travel speed even when the travel speed of the moving frame is set to the most efficient speed for fastening the hard snow ring. It is also possible to set an optimum speed corresponding to the above.

  The present invention includes a control device that controls the traveling mechanism that travels the moving frame, the setting mechanism, the clamping mechanism, and the return actuator. The setting operation and the fastening operation may be stopped in a state where the traveling of the moving frame is continued when a large-diameter overhead wire connecting portion is detected or when a control signal from the outside is received.

  According to this, when the overhead wire connection part is detected or a control signal is received from the outside, useless operation can be prevented by stopping the setting operation and the fastening operation while maintaining the traveling of the moving frame. Thereby, it does not fall into the state which cannot be fastened, and a difficult snow ring is not consumed wastefully.

It is a perspective view of a difficult snow ring attachment device. It is a top view of a difficult snow ring attachment device. It is a side view of a difficult snow ring attachment device. It is a perspective view which shows the structure of an attachment unit. It is the VV sectional view taken on the line of FIG. 3, and the enlarged view of a groove part. It is the VI-VI line sectional drawing of FIG. 3, and the perspective view which expanded the clamping mechanism. It is a perspective view of a clamping mechanism. It is a perspective view of a shift block and a clamping mechanism. It is the side view and sectional drawing of an attachment unit in the timing when the difficult snow ring was supplied to the clamping mechanism in a home position. It is the side view and sectional drawing of an attachment unit in the timing which sent the difficult snow ring to the overhead wire. It is the side view and sectional drawing of an attachment unit in the timing which fastened the difficult snow ring to the overhead wire. It is the side view and sectional drawing of the attachment unit after completion of attachment. It is a figure which shows the clamping mechanism of another embodiment (b). It is a figure which shows the clamping mechanism of the operation state of another embodiment (b). It is a figure which shows the structure of the groove part of another embodiment (c). It is a figure which shows the structure of the push plate of another embodiment (d).

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[Basic configuration]
As shown in FIGS. 1 to 3, a moving frame A <b> 2 that travels along the overhead line C is configured by the traction frame A <b> 1, and a difficult snow ring D is attached to the overhead line C at a set interval with respect to the moving frame A <b> 2. A hard snow ring attachment device is configured with the attachment unit B.

  This difficult snow ring attachment device is operated in a state suspended from an overhead line C such as a power transmission line supported between steel towers, and thus travels in the moving direction F by the traction force of the traction frame A1, During this traveling, an operation for attaching the difficult snow ring D to the overhead line C at a set interval is automatically performed.

  As shown in FIGS. 9 and 10, the difficult-to-snow ring D has two half-ring portions Da made of resin so as to form a ring shape in a closed posture, and a resin at a portion connecting the half-ring portions Da. A member having a hinge part Db that enables the two half ring parts Da to be switched to a closed position by utilizing deformation of the material, and maintaining the ring state by fitting and connecting the projecting ends of the two half ring parts Da. It has a joint part Dc.

  From this configuration, the difficult snow ring D is connected to the engagement portion Dc from the open posture in which the two half ring portions Da are opened, with the half ring portion closed, as shown in FIGS. Can be switched to the fastening posture. The above-described mounting unit B supplies the hard snow ring D in the open posture to the overhead line C, and then switches to the fastening posture, thereby bringing the overhead wire C into the fastening posture in which the overhead wire C is held by the two half-ring portions Da. The operation to attach to the outer periphery of the.

  The traction frame A1 is configured to move in a self-propelled manner along the overhead line C, and the movement frame A2 is moved with respect to the traction frame A1 so as to move along the overhead line C by the traction force of the traction frame A1. They are connected by a connecting body 10.

  In this embodiment, the traction frame A1 is provided with a pair of driving wheels 1 for traveling, and the moving frame A2 is provided with a pair of non-driven type driven wheels 11; Instead of this, by providing an electric motor or the like that drives the driven wheel body 11 of the moving frame A2, it is possible to form the difficult snow ring mounting device only by the moving frame A2 without the traction frame A1.

[Towing frame]
The traction frame A1 includes a pair of pulley-like drive wheels 1 that come into contact with the overhead wire C and is disposed on both sides of the drive wheels 1 so as to rotatably support the pair of drive wheels 1. The side frame 2 is provided. The traction frame A1 includes a frame-shaped frame 3 connected to the side frame 2. The frame-shaped frame 3 includes a traveling motor 4 that is an electric motor, and a battery 5 that supplies electric power to the traveling motor 4. And a control device 6 for controlling each part of the device.

  In order to lower the center of gravity of the traction frame A1, the traveling motor 4, the battery 5, and the control device 6 are disposed at a lower position of the frame-shaped frame 3. In addition, the endless chain 7 is wound around the output sprocket 4A provided on the output shaft of the traveling motor 4 and the input sprocket 1A that rotates integrally with the pair of driving wheels 1, thereby driving the traveling motor 4. It is comprised so that the driving wheel body 1 can be driven with force. As a configuration for driving the drive wheel body 1, a configuration using a timing belt may be used instead of the endless chain 7 described above, and a traveling motor 4 directly connected to the shaft portion of the drive wheel body 1 may be provided. .

[Moving frame]
The moving frame A2 includes a pair of pulley-like driven wheel bodies 11 that come into contact with the overhead line C, and a pair of columnar frames 12 in a vertically oriented posture that supports the pair of driven wheel bodies 11 rotatably. I have. A frame-like base frame 13 is provided at the lower end portion of the pair of columnar frames 12, and an attachment unit B is provided on the base frame 13.

  The attachment unit B is configured to continuously perform the operation of attaching the difficult snow ring D to the overhead line C without stopping traveling when the moving frame A2 travels along the overhead line C by the traction force of the traction frame A1. Has been. In order to realize this operation, the attachment unit B includes a ring supply part Bs for supplying the difficult snow ring D, a fastening part Bc for attaching the difficult snow ring D supplied from the ring supply part Bs to the overhead line C, In a situation where the moving frame A2 moves along the overhead line C, a moving part Bt that fixes the relative position between the overhead line C and the fastening part Bc and enables the fastening operation is provided.

  As shown in FIGS. 4 and 5, the ring supply unit Bs is supported by the pair of front and rear support frames 15, the pair of front and rear restriction plates 16, and the support frame 15 so as to be rotatable about the rotation axis X. The rotary holder 17 is configured to include a rotary actuator 18 that drives and rotates the rotary holder 17, and a feeder 20 that sends out the hard snow ring D from the rotary holder 17.

  As a specific configuration, the support frame 15 has a plate shape, and is supported by the base frame 13 so that the plate surfaces face each other. The restriction plate 16 has a ring shape with an outer diameter equal to the outer diameter of the rotary holder 17, and is attached to the support frame 15 coaxially with the rotary shaft X. The rotary holder 17 has a drum shape as a whole, and is supported by the support frame 15 so as to be rotatable about the rotation axis X at a position between the pair of regulating plates 16.

  A plurality of groove portions 17A that are in a posture parallel to the rotation axis X are formed on the outer peripheral portion of the rotation holder 17, and a number of difficult snow rings D are held in a continuous state in an open posture in each groove portion 17A. The A falling prevention plate 17B for preventing the falling off of the difficult snow ring D held by the groove 17A is provided in the rotary holder 17, and the falling prevention plate 17B includes a plurality of hard snow rings D held by the groove 17A. Is provided at a position for restricting movement in the direction in which the difficult snow ring D held by the groove 17A drops off in a state in which movement in the direction along the rotation axis X is allowed.

  In the ring supply part Bs, a supply path S is set for sending out the difficult snow ring D from the uppermost one of the plurality of groove parts 17A (see FIGS. 3 and 5). A front opening 16A is formed on the front end side of the traction frame A1 at an upper position on the outer periphery of the restriction plate 16 adjacent to the fastening part Bc on the extension line of the supply path S, and the rear opening 16B is formed in the restriction plate 16 on the opposite side. Is formed. In addition, a tunnel-shaped relay portion 15A that temporarily holds the difficult snow ring D sent out from the rear opening 16B is provided at the upper end of the support frame 15 adjacent to the fastening portion Bc. The rotary actuator 18 operates to rotate the rotary holder 17 by an amount equal to the interval in the circumferential direction of the groove portion 17A.

  As shown in FIGS. 2, 4, and 5, the feeder 20 includes a feed frame 21 arranged in a parallel posture with the rotation axis X at a side position of the rotary holder 17, and a longitudinal direction of the feed frame 21. The feed screw shaft 22, the feed motor 23 composed of an electric motor that rotationally drives the feed screw shaft 22 in the forward and reverse directions, and the feed screw shaft 22 are screwed together. A slider 24 that can reciprocate along the frame 21 and a push plate 25 connected to the slider 24 are provided.

  The feeder 20 is disposed at a position where the end of the push plate 25 on the projecting side is fitted into a groove 17A located in the supply path S of the rotary holder 17, and the feed motor 23 is rotated in the forward direction to operate the push plate 25, thereby forming the groove. The operation | movement which sends out the some difficult snow ring D accommodated in 17A to the direction of fastening part Bc (direction of the rear part opening 16B) is performed. The tip of the push plate 25 is shaped to press the hard snow ring D and is disposed at a position where it does not interfere with the drop prevention plate 17B.

  As shown in FIGS. 4 and 7 to 10, the fastening portion Bc receives the hard snow ring D supplied from the ring supply portion Bs at the supplied position, and sends it to the fastening position of the overhead wire C by the setting operation. As a shift block 34, and a clamping mechanism 40 that tightens the hard snow ring D sent to the fastening position by applying force to the overhead wire C. In particular, the fastening position is a position where the hard snow ring D contacts with the setting operation of the overhead line C.

  The clamping mechanism 40 includes a vertical frame 31 that can reciprocate in the front-rear direction by supporting the lower end of the slide block 54 of the moving part Bt. The fastening portion Bc includes a shift screw shaft 32 disposed along the longitudinal direction (vertical direction) of the vertical frame 31, a shift motor 33 including an electric motor that rotationally drives the shift screw shaft 32 in the forward and reverse directions, and a shift screw. A shift block 34 that is screwed onto the shaft 32 and is reciprocally movable along the vertical frame 31 as the shift screw shaft 32 rotates is provided with a clamping mechanism 40 on the upper surface of the shift block 34. The shift block 34 performs an ascending operation as a setting operation, thereby performing an operation of feeding the difficult snow ring D to a fastening position in contact with the overhead line C.

  The clamping mechanism 40 includes a table portion 41 that is in a horizontal posture on the upper surface of the shift block 34, and includes a support member 42 that protrudes in the direction of the rotary holder 17 at a central position in the width direction of the table portion 41. In addition, the clamping mechanism 40 is screwed onto a clamping screw shaft 43 that is rotatably supported around an axial center in a lateral direction below the table portion 41 and a pair of screw portions 43S of the clamping screw shaft 43. And a pair of clamping operation members 44 that can reciprocate the upper surface of the table portion 41 in the left-right direction by the rotation of the clamping screw shaft 43, and a pair of sandwiching members that operate integrally with the pair of clamping operation members 44. A wearing die 45 is provided.

  A clamping motor 46 formed of an electric motor is provided below the clamping screw shaft 43, and timing is provided across the output pulley 46 </ b> A provided on the output shaft of the clamping motor 46 and the input pulley 43 </ b> A of the clamping screw shaft 43. A belt 47 is wound around.

  One screw portion 43S of the clamping screw shaft 43 is a right screw, and the other screw portion 43S is a left screw. As a result, the clamping screw shaft 43 is rotated forward by the clamping motor 46 so that the clamping dies 45 are brought close to each other along the linear movement path, and the clamping screw shaft 43 is rotated in the reverse direction. The die 45 is configured to perform an operation of separating the dies 45 from each other along a linear movement path. In this clamping mechanism 40, the pair of clamping dies 45 are reciprocated in a positional relationship that is symmetrical in the left-right direction.

  A portion of the sandwiching die 45 that comes into contact with the difficult snow ring D is formed in a cam surface shape in which a force is applied to the difficult snow ring D to set the fastening posture.

  The moving part Bt includes a slide frame 51 extending in the front-rear direction, a ball screw shaft 52 provided therein, and a slide motor 53 (an example of a return actuator) including an electric motor that rotationally drives the ball screw shaft 52. It is configured. The moving part Bt includes a slide block 54 (an example of a clamping operation member) that is screwed to the ball screw shaft 52, and a bracket 55 that is connected to the slide block 54 is connected to the vertical frame 31.

  In particular, in this moving part Bt, in the situation where the slide motor 53 is in a non-driven state (non-energized state), when an external force acts on the slide block 54, the ball screw shaft 52 rotates to allow the slide block 54 to move freely. Is configured to do.

  The state where the clamping mechanism 40 and the vertical frame 31 are in the positional relationship shown in FIG. 9A is the home position, and the clamping mechanism 40 and the vertical frame 31 are set at the home position in the mounting unit B. The sensor which detects this is provided. Further, at this home position, as shown in FIG. 9B, the pair of sandwiching dies 45 are set at positions that are separated from each other.

  As shown in FIGS. 1 and 3, the traction frame A1 and the moving frame A2 are connected by a connecting body 10, and the electric power from the battery 5 of the traction frame A1 and the control signal from the control device 6 are connected by a cable. A1 is told. The control device 6 is assumed to have a device such as a microprocessor or DSP that realizes control by a program. For example, a device that can perform sequential control without a program such as a logic having a logic gate. You may comprise the control apparatus 6 using it. The control device 6 is assumed to receive a signal from the outside wirelessly using radio waves, but may be a device that receives a signal from the outside in a wired manner.

[Control form]
When the difficult snow ring D is attached to the overhead line C with this difficult snow ring attachment device, the tow frame A1 and the moving frame A2 are set on the overhead line C, and control by the control device 6 is started by an external signal. The In this control, the driving wheel body 1 is driven at a set speed and the operation by the mounting unit B is executed.

  In the mounting unit B, as shown in FIG. 9A, the control device 6 operates the feed motor 23 of the feeder 20 of the ring supply unit Bs by a set amount while the clamping mechanism 40 is set at the home position. The hard snow ring D is supplied from the rotary holder 17 to the clamping mechanism 40 via the relay portion 15A.

  As shown in FIG. 9 (b), the difficult snow ring D is sent out from the relay portion 15 </ b> A, so that the difficult snow ring D is a space sandwiched between the pair of sandwiching dies 45. It is set on the upper surface of 40 support members 42. This position is the supplied position of the hard snow ring D.

  In order to maintain the posture of the difficult snow ring D when the difficult snow ring D is supplied to the supply position, for example, a spring body that presses the difficult snow ring D against the upper surface of the support member 42 or the like. These members may be provided separately.

  Immediately after this, as shown in FIG. 10 (a), the operation of the shift motor 33 of the fastening portion Bc raises the clamping mechanism 40 integrally with the shift block 34, and as shown in FIG. The snow ring D is sent to the fastening position where it comes into contact with the overhead line C (specific example of setting operation).

  At the same time when the fastening position is reached, the clamping motor 46 is rotated forward, and the hard snow ring D is switched to the fastening position by the force from the pair of clamping dies 45 as shown in FIG. The snow ring D is fastened in the form of holding the snow ring D to the overhead wire C.

  When the difficult snow ring D is brought into contact with the fastening position of the overhead line C in this way, until the fastening operation is completed, the difficult snow ring D is pressed against the overhead line C, and the force that pulls the fastening part Bc backward. Acts from overhead line C. At the time of this fastening operation, the slide motor 53 is in the non-driven state as described above, so that the fastening portion Bc moves relative to the rear of the moving frame A2, as shown in FIG. Since the relative position with respect to the overhead line C is fixed, the relative positional relationship between the overhead line C and the position where the difficult snow ring D is fastened by the fastening portion Bc in the overhead line C is maintained. Fastening is possible in a state where the snow ring D contacts the overhead line C at a specific position. That is, in this configuration, the clamping mechanism 40 functions as a position fixing mechanism that fixes a relative position with the fastening position of the overhead line C.

  Thus, in the situation where the moving frame A2 moves with respect to the overhead line C, the moving part Bt is prevented from relative movement between the overhead line C and the fastening part Bc, so that the hard snow ring D is fixed at the fastening position. By the fastening operation of the fastening part Bc, the hard snow ring D supplied from the ring supply part Bs can be fastened to the overhead line C without stopping the traveling of the moving frame A2.

  After the difficult snow ring D is fastened to the overhead line C by the clamping mechanism 40, as shown in FIG. 12 (b), the clamping motor 46 is reversely rotated to release the clamping and as shown in FIG. ), The clamping mechanism 40 is lowered integrally with the shift block 34 by the operation of the shift motor 33. Further, control is performed to return the clamping mechanism 40 to the home position by the operation of the slide motor 53. In particular, the operation of returning the clamping mechanism 40 to the home position by the operation of the slide motor 53 can be performed at a high speed. Therefore, when the moving frame A2 is traveled at a high speed, or the attachment interval of the hard snow ring D It is possible to cope with the case where the length is shortened.

  After the clamping mechanism 40 is set at the home position, the feed motor 23 of the feeder 20 of the ring supply unit Bs is operated by a set amount, and the difficult snow ring D is clamped from the rotary holder 17 via the relay unit 15A. It is supplied to the landing mechanism 40. Then, for example, the control for starting the fastening operation is started at the timing when the moving frame A2 moves a set distance, or at the timing when the set time has elapsed from the previous fastening operation.

  When the hard snow ring D of the groove portion 17A set in the supply path S is completely consumed by this fastening operation, the feed motor 23 is reversed and the push plate 25 is moved to the front side from the front end of the rotary holder 17. Let In this state, the rotary actuator 17 is rotated by the rotary actuator 18, the new groove 17A is set at the position of the supply path S, and the feed motor 23 is rotated forward, whereby the push plate 25 is moved from the front opening 16A of the regulating plate 16. It is introduced into the groove portion 17A. As a result, it is possible to shift to a state in which pressure is applied from the push plate 25 to the difficult snow ring D, and the attachment of the difficult snow ring D to the overhead line C can be continued.

[Another embodiment]
The present invention may be configured as follows in addition to the embodiment described above.

(A) When the sensor detects that the overhead wire C has an overhead wire connecting portion having a diameter larger than that of the overhead wire C or when a control signal is received from the outside, the clamping mechanism 40 and the vertical frame 31 Is maintained at the home position so that the travel of the moving frame A2 is continued without performing the setting operation and the fastening operation, and after the set distance from the overhead wire connecting portion, the control device 6 is resumed. The control form may be set.

  By setting the control mode in this way, it is not necessary to perform a fastening operation in a region where the difficult snow ring D cannot be attached, and the hard snow ring D is not wasted. In addition, as a sensor for detecting the presence of an overhead wire connection portion having a diameter larger than that of the overhead wire C on the overhead wire, a contact sensor having a limit switch or the like that contacts the overhead wire connection portion can be used. It is also possible to attach to A1. In the configuration in which the sensor is attached to the traction frame A1, the overhead wire connection portion is detected at an early stage to realize the stop at the proper timing of the fastening operation.

(B) As shown in FIGS. 13 and 14, as the clamping mechanism 40, a pair of clamping operation members 44 are supported so as to be reciprocally movable along the table portion 41 on the upper surface of the shift block 34. A clamping die 45 is supported so as to be swingable about a swing shaft 48 in a front-rear posture with respect to the operating member 44. This sandwiching die 45 is formed with a protrusion 45A that abuts against the difficult snow ring D and applies a force in the fastening direction, and the posture setting for biasing the sandwiching die 45 toward the posture shown in FIG. A spring 48A is provided. Further, the clamping operation member 44 is provided with a stopper 49 for setting the swing limit of the clamping die 45.

  In this other embodiment (b), similar to the embodiment, the pair of clamping operation members 44 can be moved close to each other along the linear movement path and separated from each other by the rotation of the clamping screw shaft 43. It is configured. With such a configuration, when the fastening operation is performed, the pair of sandwiching dies 45 are operated in a direction in which they are close to each other, whereby the projecting portion 45A is in contact with the difficult snow ring D and exerts a force in the fastening direction. When the difficult snow ring D is switched to the fastening position by the action of this force, as shown in FIG. 14, the protrusion 45 </ b> A swings upward, and the swing is performed to the limit regulated by the stopper 49. Therefore, the force is applied in the optimum direction from the protrusion 45A to the difficult snow ring D so that fastening can be performed.

(C) As shown in FIG. 15, the groove portion 17 </ b> A is configured to reduce the area of the opening portion of the member that forms the groove portion 17 </ b> A formed in the rotary holder 17 to restrict the falling off of the difficult snow ring D. A pair of restricting portions 17S may be formed on the member to be performed. By comprising in this way, the drop-off prevention plate 17B shown in the embodiment becomes unnecessary.

(D) As shown in FIG. 16, a pair of abutting portions 25 </ b> A having a shape along the shape along the inner surface of the groove portion 17 </ b> A is formed at the distal end portion of the push plate 25. In this configuration, the pair of abutting portions 25A are formed symmetrically from the front end of the push plate 25, so that the front end portion of the push plate 25 can be disposed at the center in the width direction of the groove portion 17A. From such a configuration, it is possible to reliably perform the operation of sending out by applying a non-biased force to the hard snow ring D accommodated in the groove portion 17A.

(E) As a position fixing mechanism, a pair of clamping members and the like are attached to the shift block 34 so that the relative position between the fastening part Bc and the overhead line C is fixed like a friction brake by being sandwiched between the overhead line C by the driving force of the actuator. You may prepare. As a specific control mode, the clamping mechanism 40 is connected to the overhead line C by performing an operation of sandwiching the overhead line C with a pair of clamping members or the like at the timing when the difficult snow ring D comes into contact with the overhead line C as the clamping mechanism 40 rises. Fix in place. In this fixed state, the clamping mechanism 40 fastens the difficult snow ring D to the fastening position of the overhead wire C. After the fastening, an operation of releasing the clamping member 40 and returning the clamping mechanism 40 to the home position is performed.

  With this configuration, even when the moving frame A2 moves at a high speed, the relative position between the fastening portion Bc and the overhead line C can be reliably fixed when the difficult snow ring D is fastened to the overhead line C. This enables not only the fastening operation to be performed reliably, but also the accuracy of the interval of the difficult snow ring D attached to the overhead line C.

(F) As the moving part Bt, an electric cylinder or hydraulic cylinder capable of reciprocating operation, or a reciprocating actuator for reciprocating the rack gear by rotation of a pinion gear is provided. In this configuration, when the hard snow ring D comes into contact with the overhead line C due to the rising of the clamping mechanism 40, the actuator is contracted at a speed equal to the traveling speed of the moving frame A2, thereby fastening the fastening part Bc and the overhead line C. The position fixing mechanism may be configured with a reciprocating actuator so as to fix the relative position of the actuator.

  In the case where the reciprocating actuator is provided as in this alternative embodiment (f), after the difficult snow ring D is fixed to the overhead line C by the clamping mechanism 40, the reciprocating actuator is operated in the extending direction. This reciprocating actuator can be configured as a return actuator.

  INDUSTRIAL APPLICABILITY The present invention can be used for an apparatus for attaching a difficult snow ring while running a moving frame along an overhead line.

6 Controller 34 Setting mechanism (shift block)
40 Clamping mechanism / position fixing mechanism 53 Return actuator (slide motor)
54 Reciprocating members (slide blocks)
A2 Moving frame B Mounting unit Bs Ring supply part Bc Fastening part Bt Moving part C Overhead wire D Difficult snow ring

Claims (3)

A movable frame that can travel along the overhead line, and a mounting unit that is supported by the movable frame and attaches a hard-to-fall ring to the overhead line at set intervals,
The mounting unit is configured to fasten the hard snow ring supplied from a ring supply unit to the overhead wire by fastening operation, and to support the fastening portion and to fasten the overhead wire and the fastening in a situation where the moving frame travels. A moving part for fixing the relative position to the part and performing the fastening operation of the difficult snow ring ,
The fastening part receives the hard snow ring from the ring supply part at a supplied position and sends the hard snow ring to the fastening position by a setting operation; and a force acting on the hard snow ring at the fastening position And a clamping mechanism for fastening in a form for holding the overhead wire.
A reciprocating member that supports the fastening portion so that the moving portion can reciprocate in a direction along a traveling direction of the moving frame, and a relative positional relationship between the reciprocating member and the overhead wire during fastening operation of the clamping mechanism And a snow-fixing ring mounting device configured to include a position fixing mechanism for maintaining the position . After the fastening operation of the clamping mechanism is completed, a return actuator that returns the reciprocating member to the supply position where the setting mechanism receives the hard snow ring from the ring supply unit is provided as the moving frame or the reciprocating mechanism. flame snow accretion ring mounting apparatus according to claim 1, characterized in that provided in the actuating member. A control device that controls the travel mechanism that travels the moving frame, the setting mechanism, the clamping mechanism, and the return actuator is provided, and the control device has an overhead wire that is larger in diameter than the overhead wire on the overhead wire. The difficult snow ring according to claim 2 , wherein the setting operation and the fastening operation are stopped in a state in which the traveling of the moving frame is continued when a connection part is detected or a control signal is received from the outside. Mounting device.

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