JP3011996B2 - Trolley wire wear meter - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a trolley wire wear amount measuring device for measuring a trolley wire wear amount.

[Problems to be solved by conventional technology and invention]

Trolley wires such as train wires gradually wear as the current collecting shoe slides. If the amount of wear reaches 50% of the outer diameter of the trolley wire, there is a risk of wire breakage. Need to be replaced for Therefore, it is necessary to measure the amount of wear of the trolley wire sliding surface.

In this type of conventional measuring device, a non-contact type sensor for detecting the wear displacement of the sliding surface of the trolley wire is attached to the tip of the support rod, and is attached to a holding member to which the sensor is attached. , A roller was attached, and the roller was placed on a trolley wire, and measurement was performed in that state.

Therefore, in a portion where the ears are fitted in the left and right ear grooves of the trolley wire, the roller cannot be rolled, and measurement of this portion cannot be performed.
The roller could not be smoothly rolled at the bent portion of the trolley wire, and accurate measurement could not be performed at this bent portion.

Accordingly, an object of the present invention is to provide a trolley wire wear amount measuring instrument capable of accurately detecting the wear displacement of the sliding surface of the trolley wire over the entire length of the trolley wire.

[Means for solving the problem]

In order to achieve the above object, one trolley wire wear amount measuring instrument according to the present invention includes a measuring instrument main body having a non-contact type sensor for detecting a wear displacement of a sliding surface of a trolley wire, and a gripping rod. A measuring device attached to a tip end; wherein the measuring device main body is composed of a block body and a slide body slidably attached to the block body; and the trolley wire is attached to the block body of the measuring device main body from below. A pair of front and rear reference rollers abutting on the curved surface of the trolley and rolling along the trolley wire, and the trolley while being fitted in a pair of left and right ear grooves of the trolley wire to clamp the trolley wire from the lateral direction. A pair of clamping rollers that roll along a line; the slide body has an expanding inclined surface for moving the pair of clamping rollers toward and away from each other; Those who are close to The elastic member for urging resiliently provided; and a handle for sliding the sliding member relative to the block body, but on the above block body. Further, a measuring instrument provided with a non-contact type sensor for detecting a wear displacement of a sliding surface of a trolley wire is attached to a tip of a gripping rod; wherein the measuring instrument main body is a block body; A slide body slidably attached to the block body; a pair of front and rear reference members which contact the block body of the measuring device main body from below and roll along the trolley wire while abutting against the left-right curved surface of the trolley wire. Laura and
A pair of clamping rollers which are fitted into a pair of left and right ear grooves of the trolley wire and roll along the trolley wire while clamping the trolley wire from a lateral direction; The slide body is rotatably supported on a shaft; the slide body forms a splaying surface for expanding and closing the pair of holding rollers toward and away from each other by rolling a bearing externally fitted to the pair of shafts. The base ends of the pair of shafts are fixed to a swing block pivotally supported by a mounting piece protruding from a block body; and the pair of holding rollers are mutually connected between the pair of shafts. A resilient member is provided for resiliently biasing in a direction to approach the block; and a handle for sliding the slide body relative to the block body is provided on the block body.

(Operation)

Since the trolley wire is received from below by a pair of front and rear reference rollers and is clamped from right and left by the clamping rollers, the displacement of the measurement reference point of the non-contact sensor is eliminated.

In addition, the gripping rollers can be moved closer to and away from each other by operating the handle.If the gripping rollers are separated from each other at the position where the ear is fitted in the ear groove, the trolley wire can be The pinching roller can be avoided from the ear while being received, and this portion can be overcome.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the drawings showing examples.

FIGS. 1, 2 and 3 show a trolley wire wear amount measuring device according to the present invention, which comprises a non-contact type sensor 2 for detecting a wear displacement of a sliding surface X of a trolley wire 1. FIG. A measuring device main body 3 attached to the tip of a gripping rod 4, the main body 3 includes a block body 5, and a slide body 6 attached to the block body 5 so as to be slidable in the front-rear direction.
It has.

That is, the block body 5 has notches 7a, 7b, 7c, 7d at the front, rear, left and right as shown in FIG. 5, and as shown in FIG. Attachment pieces 8 protrude, and small notches 10, 10 are provided on the front end faces 9, 9 of the notches 7c, 7d.

The slide body 6 has notches 11a, 11
b, 11c, 11d, and slide grooves 12, 12 on the central side surface, respectively.
The protrusions 14, 14 of the guide members 13, 13 fixed to the side surfaces of the block body 5 are fitted into the slide grooves 12, 12. Therefore, the slide body 6 is provided with the guide members 13 and 13.
Slide as shown by arrows A and B while being guided by the ridges 14 and 14.

The rear end surfaces of the notches 11a and 11b in front of the slide body 6 are inclined surfaces 15 and 15 that sequentially expand toward the rear end, and the rear end surfaces of the notches 11c and 11d behind the slide body 6 are The inclined surfaces 16, 16 are sequentially expanded toward the rear end.

Thus, the block body 5 has the structure shown in FIGS.
As shown in the figure, the reference rollers 17, 18 and the nipping rollers 19 ...
Are provided.

Specifically, the front reference roller 17 includes a body 23 and flanges 24, 24 provided at both ends of the body 23, and the flanges 24, 24
The protruding shafts 25, 25 protruding from the
7 and 27, which are rotatably supported by the holder 26.
Is mounted on a protruding shaft 21 protruding from the block body 5 through an elongated hole 22 (see FIG. 5) of the slide body 6. Therefore, the reference roller 17 is provided with a concave peripheral groove 28 at the center thereof, and the trolley wire 1 is
Fit as shown. That is, the reference roller 17 comes into contact with the left and right curved surfaces 29, 29 of the trolley wire 1 and rolls along the trolley wire 1.

The rear reference roller 18 includes a body 23 and flanges 24 and 24, like the front and rear reference rollers 17, and protruding shafts 25 and 25 protruding from the flanges 24 and 24 rotate around the mounting frame 30. It is freely pivoted. That is, the mounting frame 30 includes a pair of side walls 31, 31 and the side walls 3.
A connection wall 32 connecting the front ends of the side walls 31 and 31;
The holding pieces 33, 33 protrude from the upper surface of 1. The protruding shafts 25, 25 of the reference roller 18 are rotatably supported by the holding pieces 33, 33. Therefore, also in this case, the trolley wire 1 rolls along the trolley wire 1 by contacting the left and right curved surfaces 29, 29.

And this mounting frame 30 is attached to the block body 5,
The mounting frame 30 is provided with the above-mentioned non-contact type sensor 2 and a measuring sensor 34 for measuring a traveling distance. That is, the rear reference roller 18 is provided with a plurality of bars 35 on the outer peripheral side of the body 23 along the circumferential direction.
Is measured by the measurement sensor 34, whereby the reference roller 18
It measures the distance traveled.

Then, the holding rollers 19, as shown in FIG.
An inner member 37 having a threaded portion 36 formed on an outer peripheral surface thereof;
And an outer member 38 to be fitted to the screw portion 36. The outer member 38 has a protrusion 39 having a triangular cross section on the outer peripheral surface and a short cylindrical body 40 having a screw portion 45 screwed to the screw portion 36 on the inner peripheral surface. A base end portion 41 connected to the base end, and the base end portion 41 is a tapered surface whose outer peripheral surface is gradually reduced toward the base end side, and a bearing 44 is fitted on the inner peripheral surface 43 thereof. Have been. Then, the shaft 46 is inserted into the bearing 44, and a retaining member 47 is screwed to a threaded portion at the tip of the shaft 46. The retaining member 47 has an interior shape in a recess 48 on the base end surface of the inner member 37, and a spacer 49 is interposed between the retaining member 47 and the bearing 44. 50 is a flange provided on the shaft 46, which receives the bearing 44, and 51 is an inner member 37.
And a spacer interposed between the outer member 38 and the inner surface of the base end portion.

Therefore, each of the holding rollers 19 rotates about the axis of the shaft 46. The protrusion 39 is fitted into the ear groove 52 of the trolley wire 1 as shown in FIG.

As shown in FIG. 3, a swing block 53 is continuously provided at the base end of the shaft 46, and a pivot piece 54 projects from the swing block 53. That is, the pivot piece 5 of the front shafts 46, 46
4 and 54 are respectively inserted between the mounting pieces 8 and 8 of the block body 5, and the pivoting piece 54 is pivotally attached to the block body 5 via the pivot pins 55 and 55. Accordingly, as shown in FIG. 5, the front shafts 46, 46 are arrows about the axis O (vertical axis) of the pivot pins 55, 55.
C, D, the holding rollers 19, 19 attached to the shafts 46, 46 swing about the axes O, O as the arrows C, D,
Approach and move away from each other.

Also, the pivot pieces 54, 54 of the rear pair of shafts 46, 46 are respectively inserted into the small notches 10 of the block body 5, and the pivot pins 55, 5
A pivot piece 54 is pivotally attached to the block body 5 via 5. Accordingly, the holding rollers 19, 19 attached to the rear shafts 46, 46 are provided.
Swing about the axes O, O as shown by arrows C, D, and approach each other.
Separate.

Bearings 56 are externally fitted to the base ends of the shafts 46, and between the opposing shafts 46, 46, are resiliently urged in directions approaching each other as shown in FIG. A resilient member 57 is interposed. That is, the resilient member 57 is made of a coil spring,
As shown in FIG. 3, the hook portions 57a at both ends are connected to the shafts 46,46.
Are engaged with the concave circumferential grooves 58, 58 provided in the boss. That is, the front clamping rollers 19, 19 and the rear clamping rollers 19, 19 are pulled in directions approaching each other as shown by arrows in FIG. It rolls along the trolley wire 1 while clamping from the direction.

When the slide body 6 is slid in the direction of arrow A as shown in FIG. 5 (II) from the state shown in FIGS. 1 to 3 (that is, the state where the trolley wire 1 is clamped), The bearings 56, 56 of the shafts 46, 46 are respectively inclined surfaces 1 of the slide body 6.
The shafts 46 and 46 are guided by the inclined surfaces 15 and 15 and swing in the directions of arrows C and C, and the front shafts 46 and 46 and the front holding rollers 19 and 19 swings in a direction away from each other against the elastic force of the elastic member 57. Also, in this case, the rear shaft
The bearings 56, 46 of 46, 46 roll on the inclined surfaces 16, 16, and the shaft 4
6 and 46 are guided by the inclined surfaces 16 and 16 and swing in the directions of arrows C and C, and the rear shafts 46 and 46 and the rear holding rollers 19 and 19 are subjected to the elastic force of the elastic member 57. It swings in a direction away from each other.

Therefore, to slide the slide body 6, the third
As shown in the figure, a handle attached to the slide body 6
This is done by rocking 59. That is, the handle 59 is
A pivoting portion 59a and an operating portion 59b bent at a predetermined angle with respect to the pivoting portion 59a, and a tip of the pivoting portion 59a is pivotally attached to the slide body 6 via a pin 60 so as to be swingable. The base end of the pivot portion 59a is pivotally connected to the block body 5 via a pin 61 so as to be swingable. Specifically, projecting pieces 62, 62 are provided at the distal end of the pivot 59 a, and the projecting pieces 62, 6
Mounting pieces 63, 63 interposed between the two protruding pieces,
2 and the mounting pieces 63, 63 are pivotally connected via pins 60. Also,
Projecting pieces 64, 64 are protrudingly provided at the base end of the pivoting portion 59a.
Reference numerals 4 and 64 respectively abut or approach the block body 5 from the outside. The protruding pieces 64 are pivotally connected to the block body 5 via the pins 61 so as to be swingable.

Therefore, normally, as shown in FIG. 3, the pivot portion 59a is in a state parallel to the shaft 46, and the opposing shafts 46, 46 are in a close state as shown in FIG. 5 (I). When the operating portion 59b of the handle 59 is swung in the direction of the arrow E from this state, the handle 59 swings about the pin 61, and the tip of the pivot 59a swings as shown by the arrow F. The state shown by the line is reached, and the slide body 6 slides in the direction of arrow A. That is, the opposed left and right shafts 46, 46 are separated from each other as shown in FIG. 5 (II), and as shown in FIG. 6 (II),
Each projection 39, 39 is separated from the ear groove 52, 52.

When the swing of the handle 59 in the direction of arrow E is released from this state, the opposing left and right holding rollers 19, 19 swing in a direction approaching each other, and the opposing shafts 46, 46 are moved in FIG. As shown in I), they approach each other in the direction of arrow D. That is, the handle 59 swings in the direction indicated by the arrow G while the base end of the operation portion 59b swings in the direction indicated by the arrow H, and the slide body 6 slides in the direction indicated by the arrow B. As shown in FIG. (I), the shafts 46, 46 approach each other,
As shown in FIG. 1 (I), the holding rollers 19, 19 have ear grooves 52,
Fits 52.

Thus, the non-contact type sensor 2 is composed of, for example, an optical displacement sensor, and as shown in FIG.
70, a light transmitting lens 71, a light receiving lens 72, a light position detecting element (semiconductor) 73, and the like.
Is irradiated on the sliding surface (wear surface) X of the trolley wire 1 through the light transmitting lens 71, and the reflected light is imaged as a spot on the light position detecting element 73 by the light receiving lens 72, thereby displacing the light reflecting surface. The amount of change in the spot position that changes due to (wear displacement of the trolley wire 1) is extracted as an electric quantity output of the optical position detection element 73. In FIG. 1, reference numeral 74 denotes a connector for connecting the measurement sensor 34, and reference numeral 75 denotes a connector for connecting the non-contact type sensor 2.

Next, a method of measuring the wear displacement of the sliding surface X of the trolley wire 1 using the measuring device configured as described above will be described.

First, the grasping rod 4 is grasped by hand, and the operating portion 59b of the handle 59 is swung in the direction of arrow E so that the opposing left and right holding rollers 19, 19 are separated from each other.
18 is pressed against the trolley wire 1 from below, and the left and right curved surfaces 2
Make contact with 9,29. Then, the swing of the operating portion 59b of the handle 59 in the direction of arrow E is released, and the operating portion 59b is swung in the direction of arrow H, so that the opposing left and right holding rollers 19, 19 are opposed to each other.
Are brought close to each other, and the trolley wire 1 is clamped from the lateral direction. In this state, the displacement of the sliding surface X by the non-contact sensor 2 is measured. Therefore, in this state, the non-contact sensor 2
, The dimensions from the trolley wire 1 to the ear grooves 52, 52 are constant, and the measurement in this state is accurate. In this state, the measuring device can travel along the trolley wire 1 and can sequentially measure the displacement of the sliding surface X at a desired position.

Also, as shown in Fig. 6 (II),
If you reach 76, operate the handle 59,
As shown in FIG. 6 (II), the right and left holding rollers 19, 19 can be swung in a direction away from each other, and can get over. In this case, the reference rollers 17, 18 are also provided from below. Since the trolley wire 1 is received at the, the sliding surface X can be measured.

Thus, according to the above-described embodiment, the non-contact type sensor 2
Is provided at the center in the left-right direction, and the wear surface (sliding surface X) of the trolley wire 1 is irradiated with light from below and receives the reflected light to measure the wear amount. It can be mounted compactly in a line, in a column,
Since it does not protrude largely in the horizontal direction, errors due to inclination of the measuring instrument and the like are less likely to occur.

It should be noted that the present invention is not limited to the above-described embodiment, and can be freely changed in design without departing from the gist of the present invention.
The arrangement pitch of the reference rollers 17 and 18 and the arrangement pitch of the sandwiching rollers 19 and 19 can be freely set. Also, as the non-contact sensor 2, a laser displacement sensor is used in the embodiment.
It is also preferable to use an electromagnetic displacement sensor.

〔The invention's effect〕

Since the present invention is configured as described above, the following effects can be obtained.

Even with a simple structure, the displacement of the sliding surface X can be accurately detected without displacement of the measurement reference point.

Also in the portion corresponding to the ear 76, the holding rollers 19, 19 can avoid the ear 76, and in this state, since the trolley wire 1 is received by the reference rollers 17, 18, the displacement of the sliding surface X Can be detected. That is,
Continuous measurement of the entire trolley 1 is possible.

Since the attachment to the trolley wire 1 is simple and secure, the error due to inclination, twist, or the like during the measurement hardly occurs, and the measurement is easy.

[Brief description of the drawings]

FIG. 1 is a side view of one embodiment of the present invention, FIG.
3 is a front view, FIG. 4 is a cross-sectional view of the holding roller, FIG. 5 is an explanatory view of the operation, FIG. 6 is a side view of the holding roller, and FIG. 7 is a simplified view of the non-contact type sensor. 1 trolley wire, 2 non-contact sensor, 3 measuring instrument body, 4 gripping bar, 17, 18 reference roller, 19
Nipping roller, 29 ... curved surface, 52 ... ear groove, 59 ... handle.

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Norikazu Kaijima 285-36 Ozaki-cho, Hannan-cho, Sennan-gun, Osaka 10-403, Ozaki housing complex. Actual Opening Sho 64-21311 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01B 21/00-21/32

Claims (2)

(57) [Claims] 1. A measuring instrument provided with a non-contact type sensor for detecting a wear displacement of a sliding surface of a trolley wire at a tip of a gripping rod, wherein the measuring instrument main body is a block body. And a slide body slidably attached to the block body, before and after rolling on the block body of the measuring instrument main body along the trolley wire by contacting the left and right curved surfaces of the trolley wire from below. A pair of reference rollers, and a pair of holding rollers that fit into a pair of left and right ear grooves of the trolley wire and roll along the trolley wire while holding the trolley wire from a lateral direction; Has an inclined surface for expansion for bringing the pair of holding rollers closer to and away from each other, and further comprises a resilient member for resiliently biasing the holding rollers in a direction to make them closer to each other; and The above slide body The handle to slide relative to the serial block body, the trolley wire wear measuring device, characterized in that provided in the block body. 2. A measuring instrument provided with a non-contact type sensor for detecting a wear displacement of a sliding surface of a trolley wire at a tip of a gripping rod, wherein the measuring instrument main body is a block body. And a slide body slidably attached to the block body, before and after rolling on the block body of the measuring instrument main body along the trolley wire by contacting the left and right curved surfaces of the trolley wire from below. A pair of reference rollers and a pair of clamping rollers which fit into a pair of left and right ear grooves of the trolley wire and roll along the trolley wire while clamping the trolley wire from a lateral direction; The holding roller is rotatably supported by a pair of shafts, and the slide body rolls a bearing externally fitted to the pair of shafts to move the pair of holding rollers closer to and away from each other. Inclined slope And fixing the base ends of the pair of shafts to a swing block pivotally supported by mounting pieces protruding from the block body. Further, the pair of holding rollers are interposed between the pair of shafts. A trolley wire abrasion amount measuring device, characterized in that a resilient member for resiliently biasing in a direction to approach the block member is provided, and a handle for sliding the slide body with respect to the block body is provided on the block body. .