JP2983691B2 - Trolley wire wear meter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trolley wire wear amount measuring instrument for measuring a trolley wire wear amount.

[0002]

2. Description of the Related Art A trolley wire such as a train wire gradually wears 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 disconnection. It needs to be replaced to prevent disconnection accidents. Therefore, it was necessary to measure the amount of wear on the sliding surface of the trolley wire.

[0003] Conventionally, as a measuring instrument of this type,
A non-contact type sensor that detects the wear displacement of the sliding surface of the trolley wire is held by a holding member, and the holding member is attached to the tip of a support rod, and a roller is attached to the holding member. According to this measuring device, the roller is placed on a trolley wire, and measurement is performed in that state.

[0004]

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

[0006]

To achieve the above object, a trolley wire wear meter according to the present invention has a non-contact type sensor for detecting a change in wear of a sliding surface of a trolley wire. A measuring device attached to a tip of a gripping rod , wherein the measuring device main body includes a block body and the block body.
A slide body that can be slidably mounted.
For example, a pair of rollers having a pair of roller mechanism which fits freely Hamada' pair of left and right ear grooves mutually approach and apart from the trolley line, back and forth on the upper surface side of the block body of the instrument body A resilient member is provided between the holding rollers of each pair of rollers to resiliently urge the holding rollers toward each other and to allow the ear to enter between the holding rollers. And the front and back of the lower surface side of the measuring instrument body
Place the gripping bar at one end in the direction and
A sub-grip for supporting the measuring instrument main body is provided at the other end in the front-rear direction on the lower surface side of the body , and the slide body is further provided.
However, when the pair of clamping rollers are moved closer to or away from each other,
It has an inclined surface for the purpose .

[0007]

When the measuring device is moved along the trolley wire with the holding rollers of each roller pair fitted in the ear grooves of the trolley wire, the sliding surface of the trolley wire is measured by a non-contact type sensor. Can be detected.

However, when the holding rollers of each roller pair are fitted in the ear grooves, each holding roller is resiliently biased by the resilient member in a direction approaching each other. The roller is securely fitted in the ear groove, and there is no change in the measurement reference point of the non-contact type sensor.

In addition, when the measuring instrument is run along the trolley wire and reaches the portion where the ear is fitted in the ear groove, the measuring instrument is run while supporting the auxiliary grip.
The holding rollers of each roller pair are separated from each other against the resilience of the resilient member, so that the ear enters between the holding rollers. That is, the wear amount can be measured even at a portion where the ear is fitted in the ear groove.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments.

1 to 3 show a trolley wire wear amount measuring device according to the present invention. The measuring device includes a non-contact type sensor 2 for detecting a wear displacement of a sliding surface X of a trolley wire 1. The main body 3 is attached to the tip of a gripping bar 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.

That is, as shown in FIG.
Notches 7a, 7b, 7c, 7d at the corners are shown in FIGS.
As shown in FIG. 6 and FIG. 6, a pair of upper and lower mounting pieces 8 are projected from the notches 7a and 7b, respectively, and a pair of upper and lower mounting pieces 10 are respectively formed on the rear end faces 9 and 9 of the notches 7c and 7d. … Is protruding.

The slide body 6 has notches 11a, 11
b, 11c, 11d, and a slide groove on the center side, respectively.
The slide grooves 12, 12 are provided, and the protrusions 14, 14 of the guide members 13, 13 fixed to the side surfaces of the block body 5 are provided in the slide grooves 12, 12.
Are fitted. Accordingly, the slide body 6 slides as indicated by arrows A and B while being guided by the ridges 14 of the guide members 13.

A notch at the rear of the slide body 6
The front end surfaces of 11a and 11b are inclined surfaces 15, which gradually expand toward the front end side.
The front end surfaces of the notches 11c and 11d at the front of the slide body 6 are inclined surfaces 16 and 16 which gradually expand toward the front end side. It is to be noted that the inclined surfaces 16, 16 are not required to be formed.

Thus, the block body 5 has the structure shown in FIGS.
3, reference rollers 17 and 18 and a pair of front and rear rollers 80 and 80 are provided.

Specifically, the rear reference roller 17 is
23, and flanges 24, 24 provided at both ends of the body 23, and projecting shafts 25, 25 projecting from the flanges 24, 24
The holding member 26 is rotatably supported by left and right holding pieces 27, 27, and the holding member 26 is provided in the elongated hole 22 of the slide body 6 (FIGS. 5 and 6).
) Is attached to a support shaft 21 protruding from the block body 5 through the support shaft 21. Therefore, the reference roller 17 is provided with a concave peripheral groove 28 at the center thereof, and the trolley wire 1 is fitted into the concave peripheral groove 28. That is, the reference roller 17 comes into contact with the left and right curved surfaces 29, 29 (see FIG. 2) of the trolley wire 1,
It rolls along the trolley wire 1.

In this case, the support shaft 21 of the holding body 26 is
It is rotatably supported by the main body 3 via 66. That is,
The reference roller 17 is attached to the main body 3 so as to be rotatable about the axis Oa.

The front reference roller 18, like the rear reference roller 17, has a body 23 and flanges 24, 24.
Projection shafts 25, 25 projecting from 24 are rotatably supported by the mounting frame 30. That is, the mounting frame 30 includes a pair of side walls 31,
31 and a connecting wall 32 connecting the rear ends of the side walls 31, 31, and holding pieces 33, 33 project from the upper surfaces of the side walls 31, 31. The protruding shaft 25 of the reference roller 18 is rotatably supported by the holding pieces 33, 33. Therefore, also in this case, the roller contacts the left and right curved surfaces 29, 29 of the trolley wire 1 and rolls along the trolley wire 1.

The mounting frame 30 is rotatably attached to the block body 5 via a bearing 67. The mounting frame 30 has the above-mentioned non-contact type sensor 2 and the distance traveled. A measuring sensor 34 is provided. That is, the reference roller 18 can rotate about the axis Ob as a center as indicated by an arrow, and the front reference roller 18 has a plurality of bars 35... The bar 35 is measured by the measurement sensor 34 to measure the travel distance of the reference roller 18.

Thus, the pair of rollers 80 are moved toward and away from each other, respectively, so that a pair of left and right ear grooves 52, 52 of the trolley wire 1 are provided.
(See Fig. 2 etc.)
As shown in FIG. 4, the holding roller 19 includes an inner member 37 having a threaded portion 36 formed on an outer peripheral surface thereof.
And an outer member 38 fitted into the screw portion 36 of the inner member 37. 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 42 whose outer peripheral surface is gradually reduced to the base end side, and a bearing 44 is fitted on an inner peripheral surface 43 thereof. Is being worn. 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 is
The inner member 37 has an interior shape in a recess 48 on the base end surface, and a spacer 49 is interposed between the retaining member 47 and the bearing 44. 50 is a flange provided on the shaft 46 and receives the bearing 44,
Reference numeral 51 denotes a spacer interposed between the inner member 37 and the inner surface of the base end portion of the outer member 38, which also serves to fix the bearing 44.

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

As shown in FIG. 1, 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 rear shaft 46, 46
Are inserted between the mounting pieces 8, 8 of the block body 5, respectively, and the pivot pieces 54 are pivotally attached to the block body 5 via the pivot pins 55, 55. Therefore, the rear shafts 46, 46 are shown in FIG.
As shown in FIGS. 6A and 6B, the pivot pins 55 swing about the axis O (vertical axis) of the pivot pins 55 and 55 as shown by arrows C and D, and the holding rollers 19 attached to the shafts 46 and 46, respectively. 19 oscillates around the axes O and O as indicated by arrows C and D, and moves away and close to each other.

A pair of shafts 46, 46 of the front roller pair 80 are provided.
The pivot pieces 54, 54 are inserted between the mounting pieces 10, 10 of the block body 5, respectively, and the pivot pieces 54 are pivotally attached to the block body 5 via pivot pins 55, 55. Therefore, the holding rollers 19, 19 attached to the front shafts 46, 46 swing about the axes O, O as shown by arrows C, D, and move away from and approach each other.

Bearings 56 are externally fitted to the base ends of the shafts 46, and between the opposing shafts 46, 46, as shown in FIG. An energizing resilient member 57 is interposed. That is, the resilient member 57 is formed of a coil spring, and as shown in FIG.
Are engaged with the concave circumferential grooves 58, 58 provided in the groove. Therefore, the rear clamping rollers 19, 19 and the front clamping rollers 19, 19
Each is pulled in a direction approaching each other as shown by arrows in FIG. 3, and as shown in FIG.
, And rolls along the trolley wire 1.

Then, the state shown in FIGS.
When the slide body 6 is slid in the direction of arrow A as shown in FIG. 6 from the state in which the trolley wire 1 is clamped, the bearings 56, 56 of the rear shafts 46, 46 respectively become inclined surfaces 15 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 rear shafts 46 and 46 and the rear clamping rollers 19 and 19 are rotated. It swings in a direction away from each other against the elastic force of the elastic member 57. Also, in this case, the bearings 56, 56 of the front shafts 46, 46 roll with respect to the inclined surfaces 16, 16, and the shafts 46, 46 are guided by the inclined surfaces 16, 16, and the arrows C, C
The front shafts 46, 46, and thus the front clamping rollers 19, 19 swing in the direction away from each other against the elastic force of the elastic member 57.

The slide 6 is slid by swinging a handle 59 attached to the slide 6 as shown in FIG. That is, the handle 59 includes a pivot portion 59a and an operation portion 59b bent at a predetermined angle with respect to the pivot portion 59a, and the tip of the pivot portion 59a is swingable on the slide body 6 via the pin 60. And the base end of the pivoted portion 59a is pivotally attached to the block body 5 via a pin 61. Specifically, projecting pieces 62, 62 are provided at the distal end of the pivoting portion 59a, and mounting pieces 63, 63 interposed between the projecting pieces 62, 62 project from the upper surface of the rear end of the slide body 6. The projecting pieces 62, 62 and the mounting pieces 63, 63 are pivotally connected via pins 60. Also, projecting pieces 64, 64 are provided at the base end of the pivotal connection 59a.
The protruding pieces 64 are in contact with or close to the block body 5 from outside. The projecting pieces 64, 64 are pivotally attached to the block body 5 via the pins 61.

Therefore, normally, as shown in FIG. 1, 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. 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 pivot 59
The tip of 59a swings as shown by arrow F, and the slide body 6 slides in the direction of arrow A. That is, the opposite left and right shafts 46,
As shown in FIG. 6, the protrusions 46 are separated from each other, and as shown in FIG. 9, the respective protrusions 39, 39 are separated from the ear grooves 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 swings in a direction approaching each other, and the opposing shafts 46, 46 approach each other in the direction of arrow D as shown in FIG. In other words, the handle 59 swings in the direction indicated by the arrow G at the distal end of the pivotally attached portion 59a, and swings in the direction indicated by the arrow H in the base end of the operation portion 59b. As shown in FIG. 7, the shafts 46, 46 approach each other, and the holding rollers 19, 19 are fitted in the ear grooves 52, 52, as shown in FIG.

The non-contact type sensor 2 is, for example,
As shown in FIG. 12, the light emitting diode 70 includes a light emitting diode 70, a light transmitting lens 71, a light receiving lens 72, an optical position detecting element (semiconductor) 73, and the like. Light is applied to 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, and the displacement of the light reflecting surface ( The amount of change in the spot position that changes due to the wear displacement of the trolley wire 1 is extracted as an electric quantity output of the optical position detecting element 73. In FIG. 2, reference numeral 74 denotes a connector for connecting the measurement sensor 34, and reference numeral 75 denotes a non-contact type sensor 2.
Connector.

A sub-grip 81 for supporting the main body 3 is provided on the lower surface side of the main body 3. Specifically, the auxiliary grip 81 is provided so as to protrude from the lower wall 82 of the mounting frame 30, and a cable 83 from the connection connector 74 is connected to the measurement sensor 34 via the auxiliary grip 81, and the connection connector A cable 84 from 75 is connected to the non-contact sensor 2. Note that the auxiliary grip 81 is set to such a degree that it can be gripped with one hand.

Next, a method of measuring the wear displacement of the sliding surface X of the trolley wire 1 using the measuring instrument having the above-described configuration will be described.

First, the gripping rod 4 is gripped with one 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.
The trolley wire 1 is pressed against the reference rollers 17 and 18 from below so as to contact the left and right curved surfaces 29 and 29. Then, the swing of the operating portion 59b of the handle 59 in the direction of arrow E is released, the operating portion 59b is swung in the direction of arrow H, and the opposing left and right holding rollers 19, 19 approach each other, and the trolley wire is moved. In this state, the displacement of the sliding surface X is measured by the non-contact type sensor 2. Therefore, in this state, the dimension from the non-contact type sensor 2 to the ear grooves 52 of the trolley wire 1 is constant, and the measurement of the sliding surface X is accurate. In this state, the measuring device can travel along the trolley wire 1 and can measure the travel distance of the reference roller 18 with the measurement sensor 34. Of the sliding surface X can be sequentially measured.

When the measuring device reaches the ear 76 as shown in FIG. 10, the other hand is used to hold the sub-grip 81, and while pushing up the grip 81, the measuring device is connected to the trolley wire 1 as shown by the arrow. When pressed in the longitudinal direction, as shown in FIGS. 8 and 11, the ear 76 resists the elastic force of the elastic member 57,
The holding rollers 19, 19 are pushed and spread in the direction of separation, and enter between the holding rollers 19, 19. Therefore, the resilience of the resilient member 57 allows the ear 76 to enter between the nipping rollers 19, 19 due to the pressing in the longitudinal direction. In this state, if the measuring instrument is further moved along the longitudinal direction of the trolley wire 1 as shown by an arrow, the measuring instrument can pass through the ear 76.

Therefore, even when the trolley wire 1 passes through the ear 76, the sliding surface X of the trolley wire 1 can be measured.

When the measuring instrument reaches the ear 76, the handle 59 can be operated to swing the left and right holding rollers 19, 19 in a direction to separate them from each other, as shown in FIG. It is also possible to operate the handle 59 to get over the ear 76.

However, according to the above-described embodiment, since the trolley wire 1 is always received from below by the reference rollers 17 and 18, the measurement reference point of the non-contact type sensor 2 does not change and the trolley An accurate measurement of the sliding surface X over the entire length of the wire 1 can be performed.

The reference rollers 17 and 18 have shafts Oa and Ob, respectively.
When the trolley wire 1 is curved in a plan view (usually curved) because the trolley wire 1 is freely rotatable around, the measuring instrument is moved along the trolley wire 1 corresponding to the curvature. Can be.

Furthermore, the non-contact type sensor 2 is provided at the center in the left-right direction, and the sliding surface X of the trolley wire 1 is irradiated with light from below, and the reflected light is received to measure the amount of wear. Therefore, the measuring instruments can be compactly mounted in tandem on the trolley wire, and since they do not protrude significantly in the horizontal direction, errors due to inclination of the measuring instruments and the like are less likely to occur.

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 worker grips the sub-grip 81 and lifts the measuring instrument
The entire trolley wire 1 may pass through the ear 76 when pressed along the longitudinal direction. Also, the clamping rollers 19, 19
Although the arrangement pitch and the like can be set freely, the laser displacement sensor is used as the non-contact sensor 2 in the embodiment, but an electromagnetic displacement sensor may be used freely.

[0040]

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, if the pressing force along the longitudinal direction of the trolley wire 1 is applied to the measuring device main body 3 while supporting the measuring device main body 3 with the auxiliary grip 81, the ear 76 will be resilient. The clamping rollers 19, 19 are pushed apart and spread in the direction away from each other against the resilience of the measuring instrument 3, and penetrate between the clamping rollers 19, 19, so that the main body 3 of the measuring instrument can pass through the ear 76. In this case, the displacement of the sliding surface X can be detected. That is, continuous measurement of the entire trolley wire 1 is possible. Since the measuring device main body 3 can be supported by the auxiliary grip 81, the measuring device main body 3 can be maintained in a correct posture during measurement, and accurate measurement can be performed.

[Brief description of the drawings]

FIG. 1 is a front view showing one embodiment of the present invention.

FIG. 2 is a side view showing one embodiment of the present invention.

FIG. 3 is a plan view showing an embodiment of the present invention.

FIG. 4 is an enlarged sectional view of a holding roller.

FIG. 5 is an explanatory diagram illustrating an operation.

FIG. 6 is an explanatory diagram illustrating an operation.

FIG. 7 is an enlarged side view of the holding roller in a state of being fitted to the trolley wire.

FIG. 8 is an enlarged side view of the holding roller in a state in which the ear passes.

FIG. 9 is an enlarged side view of the holding roller in a separated state.

FIG. 10 is an enlarged plan view of an essential part for explaining an operation.

FIG. 11 is an enlarged plan view of a main part for explaining an operation.

FIG. 12 is a simplified diagram of a non-contact sensor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Trolley wire 2 Non-contact type sensor 3 Measuring instrument main body 4 Gripping rod 19 Nipping roller 52 Ear groove 57 Resilient member 80 Roller pair 81 Secondary grip

Continuation of the front page (72) Inventor Nokazu Kaijima 285-36 Ozaki-cho, Hannan-cho, Sennan-gun, Osaka 10-403, Ozaki housing complex, public corporation. 56-10801 (JP, U) (58) Fields studied (Int. Cl. ⁶ , DB name) G01B 21/00-21/32

Claims (1)

(57) [Claims] 1. A measuring instrument provided with a non-contact type sensor for detecting a change in wear 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 slidably attached to the block body
Comprising a slide member, a pair of rollers having a pair of roller mechanism which fits freely Hamada' pair of left and right ear grooves mutually approach and apart from the trolley wire, the blow of the instrument body
A pair of front and rear are arranged on the upper surface side of the hook body, and between the sandwiching rollers of each roller pair, the springs are urged in the direction of approaching each other, and the ear is allowed to enter between the sandwiching rollers. When the gripping bar is disposed at one end in the front-rear direction on the lower surface side of the measuring instrument body,
Both sub-grips for supporting the measuring instrument main body are provided at the other end in the front-rear direction on the lower surface side of the measuring instrument main body , and further,
The slide body makes the pair of clamping rollers approach each other.
-A trolley wire wear amount measuring device having an inclined surface for separation .