JP2955794B2 - 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 with the sliding of a current collecting shoe. Yes, it needs to be replaced to prevent disconnection accidents. Therefore,
It was necessary to measure the amount of wear of the trolley wire sliding surface.

In this type of conventional measuring device, a roller is attached to a measuring device main body having a sensor for detecting a wear displacement of a sliding surface of a trolley wire, and the roller is rolled along the trolley wire. The trolley wire was run while moving, and the wear displacement of the sliding surface of the trolley wire was measured.

[0004]

Therefore, in the above-mentioned conventional apparatus, there is a possibility that foreign matter such as dust attached to the trolley wire may adhere to the sensor during traveling, and if so, the sensor malfunctions, An accurate wear displacement could not be detected.

Therefore, according to the present invention, it is possible to accurately measure the wear displacement of the sliding contact surface without foreign substances such as dust adhering to the trolley wire during traveling (during measurement) without adhering to the sensor. It is intended to provide a quantity measuring device.

[0006]

In order to achieve the above-mentioned object, a trolley wire wear amount measuring instrument according to the present invention is a measuring instrument provided with a reference roller rolling along a trolley wire,
A non-contact type sensor for detecting a wear displacement of a sliding surface of the trolley wire is provided at a position in front of the reference roller, and a non-contact type sensor is provided between the non-contact type sensor and the reference roller. A shielding plate for preventing foreign matter from adhering to the mold sensor is interposed.

[0007]

Function: When the reference roller is brought into contact with the trolley wire and is moved forward along the trolley wire in this state, the wear amount of the sliding surface of the trolley wire is measured by a non-contact type sensor. Can be.

Further, during traveling, the reference roller rotates in a direction opposite to the traveling direction, so that foreign matter such as dust attached to the trolley wire is separated from the trolley wire by rolling of the reference roller. The foreign matter is sent backward.

Therefore, since the non-contact type sensor is disposed at a position forward of the reference roller, the foreign matter separated from the trolley wire does not adhere to the non-contact type sensor.

Further, since a blocking plate is provided between the reference roller and the non-contact type sensor, even when foreign matter adhering to the reference roller scatters toward the sensor due to rotation of the reference roller, The shielding plate prevents foreign matter from adhering to this sensor.

[0011]

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

FIG. 1 shows an overall configuration diagram of a trolley wire wear measuring device according to the present invention. The measuring device includes a measuring device main body 2 running along a trolley wire 1, and the measuring device main body 2 includes: , A reference roller 3 that rolls along the trolley wire 1, a non-contact type sensor 5 that detects the amount of wear on the sliding surface 4 (see FIG. 7) of the trolley wire 1, and the like.

As shown in FIGS. 2 to 4, the measuring instrument main body 2 has a base plate 8 having a pair of grips 6 and 7.
The base plate 8 has a pair of front and rear rollers 9, 10
And a rear reference roller 11 disposed between the roller pair 9 and 10.
And the above-mentioned reference roller 3 disposed in front of the front roller pair 9.

A slide plate 12 is provided on the base plate 8 so as to be slidable in the front-rear direction.

The slide plate 12 has flanges 13 projecting from front, rear, left and right, and a rear end face of each flange 13 is an inclined surface 14 which gradually expands forward.

The slide plate 12 is slid by swinging a handle 15 attached to the slide plate 12.

That is, the handle 15 comprises a pivot portion 15a and an operating portion 15b bent at a predetermined angle with respect to the pivot portion 15a, and the tip of the pivot portion 15a is connected to the slide plate 12 via the pin 16. The pivotal portion 15a is pivotally connected to the base plate 8 via a pin 17 so as to be pivotable.

Therefore, when the operating portion 15b is pressed in the direction of arrow A from the state shown in FIG. 2, the operating portion 15b of the handle 15 swings about the pin 17 in the direction of arrow A, thereby the pivoting portion.
15a swings around the pin 17 in the direction of arrow B,
12 slides in the direction of arrow C.

When the operating portion 15b of the handle 15 is swung in the direction of arrow D from the state in which the slide plate 12 is slid in the direction of arrow C as described above, the pivoting portion 15a is rotated about the pin 17 in the direction of arrow E. The slide plate 12 slides in the direction of arrow F, and returns to the state shown in FIG.

The reference roller 3 includes the body 18 and the flanges 19 provided at both ends of the body 18.
Protruding shafts 20, 20 protruding from 9, 19 are rotatably supported by a pair of holding pieces 22 a, 22 b of a holding body 21 attached to the base plate 8.

The one holding piece 22a is composed of a plate-like pivot 23 for pivotally supporting the projecting shaft 20, and a substantially rectangular plate-like projection 24 projecting forward from the pivot 23. The other holding piece 22b is formed of a flat plate.

The other holding piece 22b has a connecting frame 25
The front end of the connection frame 25 and the front end of the protruding portion 24 of one holding piece 22a are connected by a front wall 26.

The non-contact type sensor 5 is disposed in a storage section 27 formed by the front wall 26, the connection frame 25, and the projection 24 of the holding piece 22a. That is, the non-contact sensor 5 is disposed at a position in front of the reference roller 3.

Here, the non-contact sensor 5 is a laser displacement sensor in this case.

That is, as shown in FIG. 8, the non-contact type sensor 5 includes a light emitting diode 28, a light transmitting lens 29, a light receiving lens 30, a light position detecting element (semiconductor) 31, and the like. .

The light of the light emitting diode 28 is applied to the sliding surface 4 of the trolley wire 1 through the light transmitting lens 29, and the reflected light is imaged as a spot on the light position detecting element 31 by the light receiving lens 30. The amount of change in the spot position, which changes due to the displacement of the trolley wire 1 (wear displacement of the trolley wire 1), is extracted as an electric quantity output of the optical position detecting element 31.

Therefore, as shown in FIG. 7, the distance h from the sensor 5 to the wear surface (sliding surface 4) is detected, and the remaining wear diameter R is calculated.

That is, the distance a from the sensor 5 to the upper edge of the trolley wire 1 is constant because the trolley wire 1 is in contact with the reference roller 3, and the wear obtained by subtracting the detected distance h from this distance a. The remaining diameter R can be determined.

In the vicinity of the reference roller 3, FIGS.
As shown in FIG. 4, a sensor 32 for measuring the mileage is provided.
Is provided.

The sensor 32 includes a light projecting section 33 and a light receiving section 34, and the through holes 3 provided on the reference roller 3 face each other.
The mileage is measured by counting the number of 5, 35.

That is, through holes 35 are provided in the flange portions 19 of the reference roller 3 at a constant pitch along the circumferential direction, respectively.
The through-holes 35 of the two flanges 19 have their axes parallel to the axis of the body 18, and the through-holes 35 facing each other have the same axis.

Therefore, the light projected from the light projecting unit 33 is counted by entering the light receiving unit 34 through the through holes 35 facing each other, and the traveling distance is calculated based on the number. You.

Thus, a shielding plate 36 is interposed between the non-contact sensor 5 and the reference roller 3.

The shielding plate 36 shields the front of the reference roller 3 and includes a front end portion 36a, a base end portion 36c, and an inclined connecting portion 36b. Is fixed to the base 38 provided at the bottom.

The shielding plate 36 is formed by bending a flat plate along the reference roller 3.
The width Wa is set to be substantially the same as the width Wb of the storage portion 27, as shown in FIG.

Moreover, a state in which the reference roller 3 is in contact with the left and right curved surfaces of the trolley wire 1 {as shown in FIG.
In a state in which the trolley wire 1 is fitted in the concave circumferential groove 37 at the center of the reference roller 3, as shown in FIG. 2, there is a slight gap between the tip 39 of the shielding plate 36 and the trolley wire 1. Gap is formed. That is, the tip 39 does not contact the trolley wire 1. In addition,
In FIG. 3, reference numeral 40 denotes a notch provided in the base end portion 36c to the inclined connecting portion 36b.

Next, similarly to the reference roller 3, the rear reference roller 11 includes a body 41 and a pair of flanges 42, 42.
Projection shafts 43, 43 projecting from 2, 42 are rotatably supported by a pair of holding pieces 45, 45 of a holding body 44.

The holding body 44 is attached to a support shaft protruding from the base plate through a longitudinal hole of the slide plate 12 in the front-rear direction.

Therefore, when the slide plate 12 slides in the front-rear direction, the holder 44 does not slide in the front-rear direction, and the reference roller 11 does not slide.

Then, the trolley wire 1 is fitted in the concave groove 46 at the center, and the reference roller 11 abuts on the left and right curved surfaces of the trolley wire 1 and rolls along the trolley wire 1.

Next, as shown in FIGS. 5 and 6, the roller pairs 9 and 10 are respectively approached and separated from each other so as to be removably fitted into a pair of left and right ear grooves 47 and 47 of the trolley wire 1. It has a pair of holding rollers 48, 48 to be fitted.

The holding roller 48 has a base portion 48a and a fitting portion 48b having a larger diameter than the base portion 48a, and an outer peripheral edge portion 49 of the fitting portion 48b fits into the ear groove 47.

The holding roller 48 is held by a shaft 50 so as to be rotatable around the axis of the shaft 50.

At the base end of the shaft 50, as shown in FIG.
A swinging piece 51 is continuously provided. The swinging piece 51 is inserted between the projecting pieces 52 provided on the base plate 8, and is pivotally supported by a pivot shaft 53 so as to be swingable.

Therefore, each of the swinging pieces 51 swings about the axis O, and the holding rollers 48,
As shown in FIG. 3, 48 swings as indicated by the arrows, and the sandwiching rollers 48, 48 of the respective roller pairs 9, 10 approach and separate from each other.

A bearing 58 is externally fitted to the base end of each shaft 50, and the bearing 58 contacts the inclined surface 14 of the slide plate 12.

That is, the bearing 58 has an inner ring fixed to the shaft 50 and an outer ring rotatably abutting the inclined surface 14.

Therefore, if the slide plate 12 is slid in the direction of arrow C by operating the handle 15 from the state shown in FIG. 2, the bearings 58 of each roller pair 9, 10 are pressed against the inclined surfaces 14, and Opposing clamping rollers 48 are separated from each other.

A resilient member 54 is provided between the shafts 50 and 50 of each pair of rollers 9 and 10, which resiliently urges the roller pairs 9 and 10 toward each other.

That is, the resilient member 54 is formed of a coil spring, and the hook portions at both ends are formed in the concave circumferential grooves 5 provided in the shafts 50, 50.
5, 55 are engaged.

Therefore, the nipping roller 4 of each roller pair 9, 10
8 and 48 are pulled in a direction approaching each other, and roll along the trolley wire 1 while holding the trolley wire 1 from the lateral direction.
Further, by operating the handle 15, the sandwiching rollers 48, 48 facing each other are operated.
When the pressing of the handle 15 in the direction of arrow A is released from the state in which the sliding plates 12 are separated from each other, the holding rollers 48, 48 approach each other due to the resiliency of the resilient member 54, thereby the slide plate 12 The inclined surfaces 14 are pressed by the bearings 58, and the slide plate 12 slides in the direction of arrow F.

A sensor 56 for detecting the swinging piece 51 of the front roller pair 9 is provided above the grip 7.

The sensor 56 can detect a state in which the clamping rollers 48 of the front roller pair 9 are separated from each other. As the sensor 56, a reflection type sensor, an electromagnetic sensor, a lever type micro switch, or the like is used.

That is, while the trolley wire 1 is held between the roller pairs 9 and 10 and the trolley wire 1 is received by the reference rollers 3 and 11, the measuring instrument main body 2 is moved in the arrow X direction shown in FIG. When the vehicle travels along the trolley wire 1, as shown in FIG. 6, the vehicle approaches the ear 57. When the vehicle approaches the trolley wire 1, the handle 15 is operated to avoid the ear 57. Separate the holding rollers 48, 48.

Therefore, if the sensor 56 detects that the holding rollers 48, 48 have been separated from each other, it means that the ear 57 is approaching.

In FIG. 2, reference numeral 67 denotes a resilient member interposed between the freely rotating reference rollers 3 and 11, which holds the reference rollers 3 and 11 at an optimum position with respect to the roller pairs 9 and 10. It has a function and effect. FIG. 3 omits the illustration.

Thus, the non-contact type sensor 5, the sensor 32,
The sensor 56 is connected to the unit 60 via a cable 59 as shown in FIG.

The unit 60 has a built-in dry battery for a sensor and also has an optical transmission repeater, and is suspended from the waist of an operator.

Therefore, the operator holds the measuring instrument main body 2 by gripping the grip 6 and / or the grip 7, and also works by suspending the unit 60 on the waist.

A monitor 62 is connected to the unit 60 via an optical fiber cable 61, and a system power supply 63 is connected to the monitor 62.

That is, the unit 60 and the measuring instrument main body 2 side and the monitor 62 and the system power supply 63 side are insulated by the optical fiber cable 61, so that the measuring operation during high-voltage charging is enabled, and the trolley wire 1 is connected. The noise signal from the generated interfering wave is cut to prevent the measurement system from malfunctioning.

The monitor 62 displays calculation data of the remaining diameter and the traveling distance, and the like, and the system power supply 63 is provided with a power status display and the like.

Accordingly, based on the data from the non-contact type sensor 5 and the sensor 32, the measured position of the sliding surface 4 and the remaining amount at the measured position are displayed as shown in FIG.

It is also preferable to connect a printer 64 or a pen recorder 65 to the monitor 62 as shown by the phantom line in FIG.

Next, a method of using the measuring instrument configured as described above will be described.

First, the clamping rollers 48 of each roller pair 9, 10
As shown in FIG. 5 etc., the ear grooves 47 of the trolley wire 1
And the trolley wire 1 is received by the reference rollers 3 and 11 as shown in FIG.

In this state, the user holds the grip 6 and / or the grip 7 to move the measuring instrument main body 2 along the trolley line in the direction of arrow X in FIG. In this case, as described above, the unit 60 is hung on the waist of the worker.

As the vehicle travels, the amount of wear (that is, the remaining diameter R) of the sliding surface 4 at each predetermined pitch is sequentially measured as shown in FIG.

In this embodiment, the predetermined pitch is 10 mm, and when the remaining diameter R is smaller than a predetermined value (below the control limit), as shown in FIG. "*" Is displayed in front of.

When the vehicle reaches the ear 57 during traveling, the handle 15 is operated to operate the gripping rollers 48, 48.
Are separated from each other as shown in FIG.

By the way, if it is avoided, the avoidance is detected by the sensor 56, and the nipping rollers 48, 48 of the roller pair 9 are detected.
It is detected that the ear 57 is passing through the gap, and “A” is displayed before the measured value as shown in FIG.

Accordingly, based on the ear 57, the ear 57
It is possible to detect the amount of abrasion at a position separated by a distance of several mm from.

This is because the trolley wire 1 is liable to cause abnormal uneven wear in the vicinity of the ear 57, and the position of the abnormal uneven wear from the ear 57 is determined by what mm from the ear 57. Because we want to specify.

If the measuring instrument main body 2 is pushed in the running direction while pushing up the measuring instrument main body 2 without operating the handle 15 when the ear 57 is approached, the ear 57 will be resiliently moved to the resilient member 54. Against the resilience of the nip rollers 48, 48, the nip rollers 48, 48 are pushed and spread in a direction to separate them, and penetrate between the nip rollers 48, 48.
It is possible to pass through the ear 57, and in this case also, the amount of wear can be detected.

Therefore, every predetermined pitch (in the embodiment, every 10 mm, of course, this 10 mm
It is not limited to. The accurate position of the measurement position of the sliding surface 4) can be determined, and the accurate replacement position can be determined.

In FIG. 9, “ma” indicates a marker, and when a marker switch (not shown) is turned “ON” at a utility pole, a distance display pole, an abnormal point, or the like as a mark of the measurement operator, immediately after that, Since this "ma" is displayed in the measurement value of "", the point of the mark can be known from the measurement data.
Further, “error” indicates a case where a sensor error, a disconnection state, or the like has occurred.

If foreign matter such as dust adheres to the trolley wire 1 during traveling, the reference roller 3 moves Y as indicated by the arrow.
Therefore, the foreign matter separated from the trolley wire 1 by the reference roller 3 will fall behind the reference roller 3, and the foreign matter on the non-contact type sensor 5 provided at a position forward of the reference roller 3. No foreign objects fall on the surface.

Further, even when foreign matter adhering to the reference roller 3 scatters forward due to rotation of the reference roller 3 or the like, since the shielding plate 36 is interposed between the reference roller 3 and the sensor 5, In addition, the scattered foreign matter does not adhere to the sensor 5.

Of course, since the tip 39 of the shield plate 36 does not contact the trolley wire 1, the shield plate 36 does not separate foreign matter from the trolley wire 1 and adhere to the sensor 5.

Therefore, even when foreign matter is attached to the trolley wire 1, the foreign matter is not attached to the sensor 5 and the sensor 5 does not malfunction.
Is always accurate.

Further, according to the above-described embodiment, the worker side and the monitor 62 side are insulated by the optical fiber cable 61, so that the measurement can be performed even when the trolley wire 1 is in a live state.

In addition, the measurement position can be set with reference to the ear 57, and the position where abnormal uneven wear occurs can be easily grasped.

Further, the sensor 32 for measuring the traveling distance is
If the bar or the like provided on the reference roller 3 is counted, foreign matter such as dust may adhere to the bar and cause malfunction, or the work of removing the attached foreign matter is troublesome. As in the embodiment, the through holes 35 of the reference roller 3
There is no such fear as long as the light passes through.

When operating the measuring instrument, the grips 6, 7
Can be measured stably and accurately even when the handle 15 is operated.

[0085]

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

Even when foreign matter such as dust adheres to the trolley wire 1, it is possible to detect the wear displacement of the sliding surface 4 of the trolley wire 1 without the foreign matter adhering to the non-contact type sensor 5. As a result, the detected value is always accurate, the position of abnormal uneven wear can be reliably grasped, and disconnection of the trolley wire 1 can be reliably prevented.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention.

FIG. 2 is a front view of a measuring instrument main body.

FIG. 3 is a plan view of a measuring instrument main body.

FIG. 4 is a side view of a measuring instrument main body.

FIG. 5 is a side view of the holding roller fitted to the trolley wire.

FIG. 6 is a side view of the holding roller in an ear passing state.

FIG. 7 is an explanatory diagram showing a relationship between a trolley wire and a non-contact type sensor.

FIG. 8 is a diagram illustrating the principle of a non-contact type sensor.

FIG. 9 is a simplified diagram showing a data display.

[Explanation of symbols]

 Reference Signs List 1 trolley wire 3 reference roller 5 non-contact sensor 36 shielding plate

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Norikazu Kaijima 285-36 Ozaki-cho, Hannan-shi, Osaka 10-403 Ozaki housing complex (58) Fields investigated (Int. Cl. ⁶ , DB name) G01B 21 / 00-21/32

Claims (1)

(57) [Claims] 1. A measuring device having a reference roller rolling along a trolley wire, wherein a non-contact type sensor for detecting a wear displacement of a sliding surface of the trolley wire is provided at a position in front of the reference roller. A trolley wire abrasion amount, wherein a shielding plate is disposed between the non-contact type sensor and the reference roller to prevent adhesion of foreign matter from the reference roller to the non-contact type sensor. Measuring instrument.