JP2019099065A - Trolley wire connection part polishing device - Google Patents

Abstract

A trolley wire connecting portion polishing apparatus that can easily obtain a smooth sliding surface that is inclined according to the level difference between the sliding surfaces of two trolley wires to be connected. A connecting portion polishing apparatus 1 is mounted with clamp portions 6 and 7 sandwiching trolley wires T1 and T2 up and down across connecting portions C of overhead trolley wires T1 and T2 having different wear amounts on sliding surfaces S. It is done. When attached to the trolley wires T1 and T2, the clamp base 2, the main body base 3, and the lifting base 4 have an inclination corresponding to the height difference of the sliding surface S. The elevating base 11 urged upward by the spring is pushed by the lower bulging portion Sb near the connection portion C and pushed down together with the polishing belt 15 and the belt shoe 12, and the stopper piece 12 b is separated from the clamp base 2. When the polishing belt 15 is rotated, the bulging portion Sb along the inclination corresponding to the height difference of the sliding surfaces S1 and T2 until the stopper piece 12b comes into contact with the clamp base 2 by the urging force of the elevating base 4. Grind. [Selection] Figure 1

Description

  In the present invention, an unused new trolley wire is butted to the end of the old trolley wire that has been used and the sliding surface has become worn, and when connecting both by cold pressure welding or using a connection fitting, both sliding surfaces The present invention relates to an apparatus for polishing a sliding surface in the vicinity of a connection portion in order to eliminate a step caused in the surface.

As a connecting means of two trolley wires in an aerial state, a normal temperature pressure welding method (see, for example, Patent Document 1 and FIG. 3) of collapsing and unifying by mutually abutting the ends of the two and pressing them mutually in the axial direction at normal temperature Using a trolley wire connection fitting, clamp the two butted trolley wires with a pair of ear pieces that straddle them, tighten them with multiple bolts, and screw the retaining bolt to the opposing surface of both ear pieces. A construction method (see, for example, Patent Document 2 and FIG. 6) is known.
In the case of the former construction method, after removing burrs caused by crushing of the end, in the case of the latter construction method, after connecting fittings, the difference in level between the sliding surfaces of the two trolley lines An operation of removing and smoothing the bulging portion on the sliding surface side is performed.
As an apparatus for removing the level | step difference of the sliding surface which arose in the connection part of such a trolley wire, what was described in patent document 3 is known conventionally. This device comprises: a guide member fixed along the trolley wire, a holding member movable along the guide member, and a cutter which is held by the holding member with the cutter facing the sliding surface of the trolley wire Prepare. The guide member has a guide surface inclined in the vertical direction with respect to the axis of the trolley wire. As the cutting tool travels along the guide surface, the cutting surface of the trolley wire is cut at an angle so as to remove the step of the butt connection portion of the two trolley wires.

Unexamined-Japanese-Patent No. 2006-15850 JP-A-7-205688 JP-A-8-11587

  The above-mentioned conventional sliding surface processing apparatus takes time to set the guide member on the trolley wire, the workability is poor, and the slope of the cutting surface which should be different due to the difference in wear between the two wires to be joined is There is a problem that it can not cope with cutting of various different connection points because it is constant depending on the guide surface.

  Therefore, according to the present invention, the trolley can be easily mounted on the aerial trolley wire, and can obtain a smooth sliding surface inclined according to the size of the level difference of the sliding surfaces of both wires to be joined without the operator's skill. It is an object of the present invention to provide a wire connection polishing apparatus.

  Hereinafter, although demonstrated with reference to the code | symbol of attached drawing, this invention is not limited to this.

  In order to solve the above-mentioned problems, in the connection portion polishing apparatus 1 of the present invention, the first aerial trolley wire T1 in which the amount of wear of the sliding surface S is relatively small, and the second amount of wear in the sliding surface is relatively large. Is a polishing apparatus for eliminating the level difference between the sliding surfaces S in the vicinity of the connection portion C with the overhead trolley wire T2. The connecting portion polishing apparatus 1 is connected to the connecting portion C by the first and second clamp portions 6 and 7 which hold the first and second trolley wires T1 and T2 at upper and lower positions respectively at portions separated from the connecting portion C by a predetermined distance. Clamp base 2 which is held under the two trolley wires T1 and T2 across it, a main body base 3 which is fixed in parallel to the lower side of the clamp base 2 and elevating it in parallel on the main body base 3 It comprises a lift base 4 which is freely supported and elastically biased upward, and a belt polishing mechanism 5 fixed on the lift base 4. When the first and second clamp portions 6, 7 grip the first or second trolley wire T1, T2, respectively, they abut against the sliding surface S of the corresponding trolley wire T1, T2, whereby the clamp base 2 And clamp surfaces 6a and 7a supported so as to have an inclination according to the height difference of the sliding surfaces S of the two trolley wires T1 and T2. The clamp base 2 has an opening 8c extending between the first and second clamps 6, 7 and a side edge 8d along the periphery of the opening 8c. The belt grinding mechanism 5 comprises a belt grinding machine 11 located in the horizontal projection plane of the opening 8 c of the clamp base 2 and a belt shoe 12. The belt grinding machine 11 includes a grinding belt 15 which is drawn in parallel to the trolley wires T1 and T2 with the grinding surface directed upward parallel to the lift base 4. The belt shoe 12 extends laterally from the push-up portion 12a parallel to the lift base 4 and in sliding contact with the lower surface of the polishing surface of the polishing belt 15, and on the lower surface of the side edge 8d of the clamp base 2. And a stopper piece 12b that abuts. The stopper piece 12b is in contact with the lower surface of the side edge 8d of the clamp base 2 in the initial state, and the polishing surface of the polishing belt 15 on the belt shoe 12 is made to coincide with the height of the clamp surfaces 6a and 7a. , T2, the grinding surface is pressed down to the bulging portion on the sliding surface S side near the connection portion C of the trolley wire T1, T2 and the bulging height from the lower surface of the side edge 8d of the clamp base 2 Positioned to be separated by minutes. As a result, the bulging portion is smoothly ground by the bulging height with an inclination according to the height difference between the sliding surfaces S of the first and second trolley wires T1, T2.

  In the connection portion polishing apparatus 1 of the present invention, the first clamp member 2 is attached to the first trolley wire T1 to be connected, and the second clamp member 3 is attached to the second trolley wire T2, The polishing surface of the polishing belt 15 can be easily disposed at an inclination angle corresponding to the difference in height of the sliding surfaces S of the two trolley wires T1, T2. Thereby, the polishing surface of the polishing belt 15 is inclined with high accuracy, and the sliding surface S of both trolley wires T1 and T2 is polished, so that the smooth sliding surface S without steps is uniform regardless of the skill level of the operator. Can be obtained. The polishing surface of the polishing belt 15 is pushed down against the biasing force by the bulging height to the sliding surface S side in the vicinity of the connection portion of the trolley wires T1 and T2 when attached to the trolley wires T1 and T2. When the bulging portion is ground and the grinding proceeds to the height position of the sliding surface S, the stopper piece 12b of the belt shoe 12 abuts on the lower surface of the side edge 8d of the clamp base 2 to further Since the rise is stopped, the grinding is not performed beyond the height of the sliding surface S.

It is a perspective view of a trolley wire connection part grinding device concerning the present invention. It is a front view of the trolley wire connection part grinding | polishing apparatus of FIG. It is a top view of the trolley wire connection part grinding | polishing apparatus of FIG. It is a right view of the trolley wire connection part grinding | polishing apparatus of FIG. It is a left view of the trolley wire connection part grinding | polishing apparatus of FIG. It is a VI-VI schematic sectional drawing of FIG. It is VII-VII schematic sectional drawing of FIG. FIG. 7 is a partial cross-sectional view for explaining the operation of the contact wire polishing apparatus of FIG. 1;

Embodiments of the present invention will be described with reference to the drawings.
In the connection portion polishing apparatus 1, a connection portion C between a first aerial trolley wire T1 having a relatively large amount of wear on the sliding surface S and a second aerial trolley wire T2 having a relatively small amount of wear on the sliding surface S. It is mounted | worn over and is a grinding | polishing apparatus which removes the level | step difference of sliding surface S in the connection part C vicinity of both trolley wire T1, T2.

  As shown in FIG. 1, the contact wire polishing apparatus 1 for a trolley wire includes a clamp base 2, a body base 3, an elevating base 4, and a belt polishing mechanism 5. The connection portion polishing apparatus 1 is hooked by the first and second pair of clamp portions 6 and 7 on the clamp base 2 to the first and second overhead trolley wires T1 and T2 connected end-to-end with each other. It is stopped.

  The clamp base 2 is a substantially rectangular and smooth metal base plate 8 which is long in the wire extension direction (hereinafter referred to as the “wire extension direction”) when attached to the aerial trolley wires T1 and T2, and the length thereof And clamps 6 and 7 provided at both ends of the direction. The base plate 8 connects the support portions 8a and 8b along the long sides of the pair of support portions 8a and 8b, the substantially rectangular opening 8c extending between the two support portions, and the long side of the opening 8c. And a pair of side edges 8d. Clamps 6 and 7 are provided on the supports 8a and 8b.

  In the illustrated embodiment, the first clamp portion 6 vertically clamps a portion which is separated from the connection portion C of the first trolley wire T1 by a predetermined distance. The second clamp portion 7 vertically clamps a portion which is separated from the connection portion C of the second trolley wire T2 by a predetermined distance.

  The first and second clamps 6 and 7 are provided with clamp surfaces 6a and 7a that abut on the sliding surfaces S of the respective trolley wires T1 and T2 when clamping the first or second trolley wires T1 and T2, respectively. Thus, the clamp base 2 is supported below the trolley wires T1 and T2 so as to have an inclination according to the height difference between the sliding surfaces S of the two trolley wires T1 and T2.

  The clamps 6 and 7 include openable and closable clamping members 6b and 7b for clamping the trolley wires T1 and T2 up and down between the clamping surfaces 6a and 7a. On the support portions 8a and 8b, semi-cylindrical receiving portions 6c and 7c extending in the direction orthogonal to the extension lines of the trolley wires T1 and T2 are fixed, and the tops thereof are the same height as the upper surfaces Set to The tops of the receiving portions 6c and 7c become clamping surfaces 6a and 7a that abut on the sliding surfaces S of the trolley wires T1 and T2.

  The body base 3 is fixed in parallel to the clamp base 2 at the lower part of the guide post 9 extending vertically downward from the four corners of the clamp base 2. The main body base 3 is made of a flat metal plate having substantially the same outer shape as the clamp base 2.

  The lift base 4 is supported by the guide post 9 so as to be capable of moving up and down while maintaining parallel to the clamp base 2, and biased upward by a spring 10 inserted between the lift base 4 and the main body base 3.

  The belt polishing mechanism 5 includes a belt polishing machine 11 and a belt shoe 12 and is provided on the elevating base 4 so as to be located within the horizontal projection plane of the opening 8 c of the clamp base 2.

  The belt grinding machine 11 comprises two driven and driven pulleys 13 and 14 and a grinding belt 15 wound around them. As shown in FIG. 3, the drive pulley 13 and the follower 14 are supported on the elevating base 4 so as to face each other on both sides of the belt shoe 12 in the wire extension direction. The polishing belt 15 is drawn so that the upper traveling portion slides on the push-up surface 12 c of the belt shoe 12 in the extending direction. The shaft 13a of the drive pulley 13 can be rotationally driven by connecting an impact wrench (not shown).

  The belt shoe 12 has a push-up portion 12a disposed between an upper traveling portion and a lower traveling portion of the polishing belt 15, and a generally H-shape in plan view having a stopper piece 12b extending to the side of the polishing belt 15. It consists of a flat metal plate. The belt shoe 12 is fixed on the lift base 4 by the support 16 at the stopper pieces 12b at the four corners in parallel with this.

  The push-up portion 12 a is located between the upper traveling portion and the lower traveling portion of the polishing belt 15 and extends in the extending direction. The stopper pieces 12b are provided so as to extend to the side of the polishing belt 15 from both ends in the wire extension direction of the push-up portion 12a on both sides in a direction perpendicular to the wire extension. The upper surface of the push-up portion 12 a is a push-up surface 12 c in sliding contact with the upper traveling portion of the polishing belt 15.

  The tip of the stopper piece 12b is located below the side edge 8d of the clamp base 2, and as shown in FIG. 8A, the contact surface 12d of the upper surface thereof is in contact with the lower surface of the side edge 8d. In the initial state (before being attached to the trolley wires T1 and T2), the polishing surface (upper surface) of the polishing belt 15 on the push-up portion 12a is the same as the clamp surfaces 6a and 7a (the upper surfaces of the support portions 8a and 8b) The height position of each part is set to coincide with.

  The process of the operation | work which grind | polishes sliding surface S of connection part C vicinity of trolley wire T1, T2 using the grinding | polishing apparatus 1 is demonstrated.

  In the initial state before the polishing apparatus 1 is mounted on the trolley wires T1 and T2, as shown in FIG. 8A, the contact surface 12d of the stopper piece 12b of the belt shoe 12 is the side edge of the base plate 8. It abuts on the lower surface of the portion 8d, and the polishing surface (upper surface) of the polishing belt 15 on the push-up portion 12a coincides with the clamp surfaces 6a and 7a (upper surfaces of the support portions 8a and 8b).

  First, the polishing apparatus 1 in the initial state is lifted up to the trolley wires T1 and T2 in the floating state, and as shown in FIG. 1, the clamp portions 6 and 7 are respectively hung on the trolley wires T1 and T2 and fixed. Thus, the entire polishing apparatus 1 is fixed to the trolley wires T1 and T2 with an inclination (inclination falling from the trolley wire T2 side to the trolley wire T1 side) corresponding to the level difference of the sliding surface S of both trolley wires T1 and T2. (The slope is not shown because it is slight.) The clamp surfaces 6a and 7a are at the height position of the sliding surface S apart from the connection portion C of the trolley wires T1 and T2, respectively.

  As shown in FIG. 8B, in the vicinity of the connection portion C, the trolley wires T1, T2 have a bulging portion (bur) Sb toward the sliding surface S (downward). The belt shoe 12 compresses the spring 10 by the bulging height of the bulging portion Sb and is pushed down. In this state, when the driving pulley 13 is driven and the polishing belt 15 is rotated, grinding of the bulging portion Sb starts. The spring 10 is released while the lift base 4 is lifted as the grinding progresses. The abutment surface 12d of the stopper piece 12b abuts on the side edge 8d of the base plate 8, and the grinding is completed. In this state, the polishing belt 15 is stopped to complete the work. Thus, the sliding surface S of the trolley wires T1 and T2 has a slope corresponding to the level difference, and only the bulging portion Sb is polished smoothly.

DESCRIPTION OF SYMBOLS 1 Polishing device 2 Clamp base 3 Body base 4 Lifting base 5 Belt polishing mechanism 6 1st clamp part 6a Clamp surface 6b Clamping member 6c Receiving part 7 2nd clamp part 7a Clamping surface 7b Clamping member 7c Receiving part 8 Base plate 8a Support portion 8b Support portion 8c Opening 8d Side edge 9 Guide post 10 Spring 11 Belt polisher 12 Belt shoe 12a Push-up portion 12b Stopper piece 12c Push-up surface 12d Contact surface 13 Drive pulley 14 Driven pulley 15 Polishing belt 16 Post T1 1st Trolley T2 Second trolley wire C Connection part S Sliding surface Sb Swelling part

Claims (6)

In order to eliminate the level difference between the sliding surfaces in the vicinity of the connection between the first aerial trolley wire whose sliding surface wear is relatively small and the second aerial trolley wire whose sliding surface wear is relatively large A polishing apparatus,
The first and second trolley wires are held under the two trolley wires straddling the connection portion via the first and second clamp portions which hold the first and second trolley wires at a predetermined distance away from the connection portion. A clamp base to be stopped, a main body base fixed to the lower side of the clamp base in parallel therewith, and an elevating base elastically supported on the main body base so as to be movable up and down in parallel therewith; And a belt polishing mechanism fixed on the elevating base,
The first and second clamp portions respectively abut the sliding surfaces of the respective trolley wires when gripping the first or second trolley wires, whereby the clamp base is formed on the sliding surfaces of the two trolley wires. It has a clamping surface that supports to have a slope according to the height difference,
The clamp base includes an opening extending between the first and second clamp portions, and a side edge along the periphery of the opening.
The belt polishing mechanism comprises a belt polisher located in a horizontal projection plane of the opening of the clamp base, and a belt shoe.
The belt polishing machine includes a polishing belt which is wound around the trolley wire with the polishing surface facing upward in parallel with the elevating base,
The belt shoe is a push-up portion parallel to the elevating base in sliding contact with the lower surface of the polishing surface of the polishing belt, and a stopper piece extending laterally from the push-up portion and abutting on the lower surface of the side edge of the clamp base And
In the initial state in which the stopper piece abuts on the lower surface of the side edge of the clamp base, the polishing surface of the polishing belt on the push-up portion coincides with the height position of the clamp surface, In the mounted state, the polishing belt is positioned such that the polishing surface of the polishing belt is pushed down by the bulging portion toward the sliding surface near the connection portion and separated from the lower surface of the side edge of the clamp base by the bulging height And
Thereby, the connection of the overhead trolley wire is characterized in that the bulging portion is smoothly ground by the bulging height with an inclination according to the height difference of the sliding surfaces of the first and second trolley wires. Parts polishing device. The main body base is fixed in parallel to the clamp base at a lower portion of a guide post extending vertically downward from four corners of the clamp base.
The elevating base is supported by the guide pillar so as to be movable up and down so as to be parallel to the clamp base, and is biased upward by a spring inserted between the main body base and the main body base. The connecting portion polishing apparatus for the aerial trolley wire according to the above. The belt polishing machine comprises a driving pulley and a driven pulley supported on the elevating base so as to face each other on both sides of the belt shoe in the direction of wire extension of the belt, and the polishing belt wound around the two pulleys. And
The drive pulley includes a drive shaft disposed in a direction orthogonal to the extending direction of the trolley wire,
The apparatus for polishing a connection portion of a trolley wire according to claim 1, wherein the drive shaft is configured to be connectable to an output shaft of a power tool. The clamp base includes a substantially rectangular and smooth metal base plate which is long in the extending direction of the trolley wire,
The base plate includes a pair of support portions positioned at both ends in the extending direction of the trolley wire, the substantially rectangular opening extending between the two support portions, and the pair of support portions along both side edges of the opening. And a pair of the side edges connecting the
The apparatus for polishing a connection portion of an aerial trolley wire according to claim 1, wherein the first and second clamp portions are provided on the support portion. The first and second clamp portions include semi-cylindrical receiving portions provided on the support portion of the base plate so as to extend in the direction perpendicular to the extension line of the trolley wire,
The trolley according to claim 4, wherein the top of the receiving portion is set at the same height as the upper surface of the support portion, and the top constitutes the clamp surface which abuts on the sliding surface of the trolley wire. Wire connection polisher. The push-up portion of the belt shoe is disposed between an upper traveling portion and a lower traveling portion of the polishing belt,
The stopper pieces of the belt shoe extend from both ends in the extension direction of the trolley wire at the push-up portion to both sides in the extension direction orthogonal to each other.
The apparatus according to claim 1, wherein the belt shoe is supported on a support post erected on the elevating base at the stopper piece.

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