JP5601697B2 - Rigid train line measuring device - Google Patents

Description

The present invention relates to a rigid train line measuring apparatus for measuring the wear state and the like on a pantograph sliding contact surface of a rigid train line of a T-type gantry system employed in a subway or the like with high accuracy.

  In a normal train line that travels outdoors, in order to supply power to a pantograph of an electric vehicle, a system in which a trolley wire such as a wire is stretched and power is supplied through this is adopted. In order to stretch such a trolley line horizontally, it is necessary to arrange various structures. However, in the case of a train track that runs in a tunnel such as a subway, these are in a limited space in the basement. In some cases, it is not possible to provide a space for arranging the structures. Therefore, a system using a rigid train line is often adopted for subways.

Since such a rigid train line is in sliding contact with the pantograph of the electric vehicle, it is necessary to periodically check its state after the start of railway business. As an apparatus therefor, for example, Patent Document 1 (Japanese Patent Application Laid-Open No. 2008-2945) discloses a rigid train line unevenness in which the unevenness of a rigid train line is measured in a non-contact state by a self-propelled overhead wire moving vehicle moving on a rail. In the measuring device, a displacement between a fixed frame fixed to the self-propelled overhead wire working vehicle, a movable frame movable with respect to the fixed frame, and a pantograph sliding surface of the rigid train line fixed to the movable frame There is disclosed a rigid train line unevenness measuring device comprising a displacement meter that measures the acceleration and an accelerometer that measures the vertical vibration acceleration of the displacement meter.
JP 2008-2945 A

  The rigid railway line unevenness measuring apparatus disclosed in Patent Document 1 uses a displacement meter and an accelerometer that measures acceleration of vertical vibration of the displacement meter to obtain a value obtained from the accelerometer twice. The amount of vibration displacement is obtained by integration, and the unevenness of the rigid train line is obtained therefrom, but in the method disclosed in Patent Document 1, the vehicle traveling direction of the rigid train line ( Although information related to the unevenness in the longitudinal direction) can be obtained, there is a problem that information relating to wear in a direction perpendicular to the vehicle traveling direction (width direction of the rigid train line) cannot be obtained.

In order to solve such a problem, the invention according to claim 1 is a rigid train that is mounted on a maintenance vehicle that moves on a rail, and is fixed by a clamping member from both sides while being in contact with the bottom surface of the T-shaped frame. A rigid train line measuring device for measuring a line, which is rotatably supported by a roller support member, and which is in contact with the rigid train line and rotates as the maintenance vehicle moves, A rotary encoder that detects the rotation of the sliding roller, a line laser type two-dimensional shape measurement sensor that measures the shape of the rigid train line in the width direction, and a linear that movably mounts the line laser type two-dimensional shape measurement sensor A rail, a measuring base on which the roller support member and the linear rail are mounted, and a constant load that causes the sliding roller to contact the rigid train line with a constant load. Has a Ne, the coordinates P ₀ of the lowest point of the T-type frame which is measured by the line laser type two-dimensional shape measurement sensor and, at two points on the T-type frame, their midpoints The wear of the rigid train line is calculated on the basis of the coordinates P ₁ and the coordinate P ₂ through which the perpendicular passes the coordinate P ₀ , the dimension H _t of the T-shaped frame , and the new rigid train line H _ro. Features.

  According to a second aspect of the present invention, in the rigid railway line measuring device according to the first aspect of the present invention, the apparatus has a height detection potentiometer for detecting a displacement of the measurement base.

Further, the invention according to claim 3 has a potentiometer for detecting a sensor position for detecting displacement of the line laser type two-dimensional shape measurement sensor in the rigid train line measuring device according to claim 1 or claim 2. Features.

  According to a fourth aspect of the present invention, there is provided the rigid train line measuring device according to any one of the first to third aspects, wherein a support point detection sensor for detecting a position of an insulator that supports the rigid train line is provided. It is characterized by being able to.

  According to the rigid train line measuring apparatus of the present invention, the line laser type two-dimensional shape measurement sensor measures the shape of the rigid train line in the width direction (perpendicular to the vehicle traveling direction). Information can be obtained, and the state of the rigid train line can be easily measured with high accuracy.

  Furthermore, since the rigid railway line measuring device of the present invention has a simple structure and is reduced in size and weight, it can be easily installed in a maintenance vehicle and the measurement operation is relatively easy. Therefore, even if it is not the skilled worker who received the training for it, a measurement is attained. Therefore, since complicated preparation for measurement and skilled workers are not required, it is possible to measure a rigid train line without cost. And, by using a simple measuring device such as the present invention, it is possible to detect abnormal wear of a rigid train line at an early stage and take measures such as maintenance, thereby facilitating maintenance and management of the rigid train line.

1 is a perspective view showing a schematic configuration of a rigid rail line measuring apparatus according to an embodiment of the present invention. It is a figure which shows the outline of a block structure of the rigid body line measuring apparatus which concerns on embodiment of this invention. It is a figure which shows the shape data of the rigid railroad line 10 periphery acquired with the line laser type | mold two-dimensional shape measurement sensor 140. FIG. It is a figure explaining the derivation | leading-out method of the wear data of the rigid body line 10. FIG. It is a figure explaining the derivation | leading-out method of the wear data of the rigid body line 10. FIG. It is a figure which shows the example of the measurement data of the rigid train line acquired by the rigid train line measuring apparatus of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a schematic configuration of a rigid train line measuring apparatus according to an embodiment of the present invention, and FIG. 2 is a schematic block diagram of the rigid train line measuring apparatus according to an embodiment of the present invention. FIG. In FIGS. 1 and 2, 10 is a rigid train line, 11 is a T-type gantry, 12 is a clamping member, 100 is a rigid train line measuring device, 110 is a support base, 111 is a support base side wall, and 112 is a support base. The top plate part, 113 is a hole, 120 is a movable plate member, 121 is a shaft member, 123 is a constant load spring, 124 is a height detection potentiometer, 125 is a displacement transmission rod member, 130 is a measurement base, 131 is a roller support member, 132 is a sliding roller, 133 is a rotary encoder, 140 is a line laser type two-dimensional shape measurement sensor, 141 is a linear rail, 144 is a potentiometer for detecting a sensor position, 145 is a displacement transmission rod member, 146 is Ultrasonic sensor for supporting point detection, 148 is a push button for recording about kilometer, 149 is a push button for recording position number, 200 is a personal computer Respectively show Yuta.

The rigid train line measuring apparatus 100 according to the present embodiment provides data relating to the wear status of the rigid train line 10 for each position, the height of the rigid train line 10 for each position, and the displacement status of the rigid train line 10 for each position. It is to be acquired and used by being mounted on a maintenance car (motor car). As the maintenance vehicle, for example, a general vehicle that can be mounted on the rigid train line measuring device 100 and several workers and can travel on a train track (not shown) can be used.

  In normal use, the rigid train line 10 contacts the pantograph of the train and supplies power to the pantograph. The upper surface of the rigid train line 10 is in contact with the lower surface of the T-shaped frame 11 and is further sandwiched by two clamping members 12 from both sides. In this way, it is fixed and supported. The T-type gantry 11 is supported via a lever (not shown) at a support point (not shown) provided at a constant interval in the longitudinal direction.

  The support base 110 mounted on the maintenance vehicle is composed of two support base side wall portions 111 provided on both sides and a support base top plate portion 112 provided between the two, and the support base top plate portion 112 is provided therebetween. It is immobile.

  The support base top plate portion 112 is provided with two holes 113, and the two shaft members connecting the movable plate member 120 and the measurement base 130 to the two holes 113. 121 is movably inserted. Due to such a structure, the movable plate member 120 and the measurement base 130 are movable in the vertical direction with respect to the support base 110.

  A constant load spring 123 capable of applying a constant load is disposed between the support base top plate portion 112 of the support base 110 and the movable plate member 120. Since such a constant load spring 123 is provided, the sliding contact roller 132 rotatably supported by the roller support member 131 of the measurement base 130 is a rigid train with a constant load of, for example, about 5 kgf. The wire 10 is press-contacted.

  The movable plate-like member 120 is provided with a height detecting potentiometer 124. From the displacement transmission rod-like member 125 fixed to the support base top plate portion 112, the movable plate-like member 120 in the HH ′ direction. Displacement is transmitted. According to such a height detecting potentiometer 124, the displacement of the movable plate-shaped member 120, that is, the slide that is rotatably supported by the roller support member 131 of the measurement base 130 and is in pressure contact with the rigid train wire 10. The displacement of the vertical movement of the contact roller 132 can be detected, and the data in the height direction of the rigid train line 10 can be acquired.

  In the present embodiment, the height detection potentiometer 124 is provided on the movable plate member 120 to measure the displacement between the support base top plate 112 and the data in the height direction of the rigid train line 10. However, the height detection potentiometer is provided on the support base top plate portion 112 to measure the displacement between the measurement base 130 and the data in the height direction of the rigid train line 10. May be obtained.

  Two roller support members 131 are provided on the measurement base 130, and the sliding roller 132 is rotatably supported by these two roller support members 131. The sliding contact roller 132 contacts the rigid train line 10 and rotates in the R direction as the maintenance vehicle moves in the F direction. Further, as described above, the sliding contact roller 132 is pressed against the rigid train line 10 with a constant load. For this reason, the distance between the measurement base 130 and the rigid train line 10 is substantially constant. To be kept.

One roller support member 131 is provided with a rotary encoder 133 so that the rotation state (number of rotations) of the sliding roller 132 can be detected. Since the diameter of the sliding roller 132 is known, the movement state of the maintenance vehicle can be detected based on the detection information from the rotary encoder 133. Further, the acquisition position of the wear data of the rigid train line 10 can be detected by the detection information from the rotary encoder 133.

  The line laser type two-dimensional shape measurement sensor 140 applies a laser beam spread in a strip shape by a cylindrical lens (not shown) to a measurement object, and captures reflected light from the measurement object such as a CMOS (not shown). An image is formed on the device to measure the position and two-dimensional shape of the measurement object. For example, LJ-G030 manufactured by Keyence Corporation can be used. The details of the position of the measurement object and the measurement principle of the two-dimensional shape of the line laser type two-dimensional shape measurement sensor 140 are described in JP-A-2008-96125, JP-A-2008-111182, and the like. It shall be incorporated by reference.

  The line laser type two-dimensional shape measurement sensor 140 is configured to be movable on the linear rail 141 in the Y-Y ′ direction (the same direction as the width direction of the rigid train line). The movement of the line laser type two-dimensional shape measurement sensor 140 on the linear rail 141 can be set to be performed manually by an operator, or can be set to be automatically performed by an actuator or the like. . In order to avoid local wear of the train pantograph, the rigid train line 10 is provided so as to be offset in the width direction. For this reason, the line laser type two-dimensional shape measurement sensor 140 is configured to be movable in the Y-Y ′ direction.

  In addition, a sensor position detecting potentiometer 144 is provided on the measurement base 130, and a line laser type two-dimensional shape measurement is performed from a displacement transmission rod-shaped member 145 fixed to the line laser type two-dimensional shape measurement sensor 140. The displacement of the sensor 140 in the YY ′ direction is transmitted. According to such a sensor position detection potentiometer 144, the displacement of the line laser type two-dimensional shape measurement sensor 140 can be obtained, and the shape of the rigid train line 10 measured by the line laser type two-dimensional shape measurement sensor 140 is obtained. Therefore, it is possible to acquire the deviation data of the rigid train line 10.

  The T-shaped frame 11 is supported by a support point made of a lever (not shown) provided at regular intervals in the longitudinal direction, but the support point detecting ultrasonic sensor 146 has a lever. By detecting it, the position of the support point is detected. The information related to the position of the maintenance vehicle can be basically obtained by detecting the rotation speed of the sliding roller 132 by the rotary encoder 133, but the support detected by the support point detecting ultrasonic sensor 146 is supported. The position information based on the rotary encoder 133 can be appropriately corrected with reference to the position information of the point. In this embodiment, the ultrasonic sensor is used to detect the insulator provided at the support point. However, a sensor based on another principle such as an optical sensor may be used.

  The kilometer recording push button 148 is a button used to record a kilometer. This button is assumed to be pressed by the operator when the maintenance vehicle reaches a predetermined distance, and the distance information input by the distance recording push button 148 is the rotary information. This can be used for the purpose of correcting position information based on the encoder 133.

  The number tag position recording push button 149 is a button used for recording position information of a number tag (a sign provided at an appropriate interval). This button is also assumed to be pressed by a worker who is in the maintenance vehicle when visually confirming the ticket. The kilometer information input by the number tag position recording push button 149 can be used for the purpose of correcting the position information based on the rotary encoder 133.

Line laser type two-dimensional shape measurement sensor 140, sensor position detecting potentiometer 1
44, height detecting potentiometer 124, rotary encoder 133, support point detecting ultrasonic sensor 146, kilometer recording push button 148, and number tag position recording push button 149 are respectively connected via predetermined interfaces (not shown). The personal computer 200 is connected to the personal computer 200, and the personal computer 200 is inputted with data acquired in each configuration.

  Data sensed by the line laser type two-dimensional shape measurement sensor 140 is input to the personal computer 200, and the shape of the measurement object is reproduced by the operation of predetermined software. The wear state of the rigid train line 10 is derived from the shape of the measurement object, and a specific method thereof will be described later.

  The data acquired by the sensor position detecting potentiometer 144 is input to the personal computer 200 so that the data (deviation data) relating to the deflection in the width direction of the rigid train line 10 is derived by the operation of predetermined software. It has become.

  Further, the data acquired by the height detecting potentiometer 124 is input to the personal computer 200, and data related to the height of the rigid train line 10 is derived by the operation of predetermined software.

  The data acquired by the rotary encoder 133 is input to the personal computer 200, and the position information of the measurement points of the rigid train line 10 is derived by the operation of predetermined software.

  The support point detection information acquired by the support point detection ultrasonic sensor 146 is input to the personal computer 200, and the position information of the measurement points of the rigid train wire 10 is corrected by the operation of predetermined software. It is used to do.

  Also, the kilometer recording information by pressing the kilometer recording push button 148 is input to the personal computer 200 to correct the position information of the measurement point of the rigid train line 10 by the operation of predetermined software. It is used for etc.

  Also, the number tag position recording information by pressing the number tag position recording push button 149 is input to the personal computer 200, and the position information of the measurement point of the rigid train line 10 is corrected by the operation of predetermined software. It is used to do.

Next, a method for deriving the wear state of the rigid train wire 10 from the shape data of the measurement object acquired by the line laser type two-dimensional shape measurement sensor 140 will be described in more detail. FIG. 3 is a diagram showing shape data around the rigid train line 10 acquired by the line laser type two-dimensional shape measurement sensor 140. In FIG. 3, the lowermost part indicates the position of a reference surface (irradiation surface, etc.) of the line laser type two-dimensional shape measurement sensor 140. The solid line in the figure is data acquired by the line laser type two-dimensional shape measuring sensor 140, and the configuration data such as the T-type gantry 11 and the holding member 12 are included together with the rigid train line 10 so that the shape data is acquired. It has become. For the data acquired in this way, the coordinates P _{0 of the} position closest to the reference plane is first obtained by a predetermined image analysis. This coordinate P ₀ is a line KK ′ corresponding to the lowermost surface of the rigid train line 10 and the clamping member 12.
Corresponds to the intersection of two lines LL ′ and MM ′ at both ends of the line NN ′. Next, at two points on the T-shaped gantry 11, the coordinates P ₁ and the coordinates P ₂ through which the perpendicular of the middle point passes the coordinate P ₀ are obtained.

A calculation method for deriving the wear data of the rigid train line 10 from each point obtained as described above will be described. 4 and 5 are diagrams for explaining a method for deriving the wear data of the rigid train line 10. FIG. 4 shows a case where the structure such as the T-type frame 11 has no inclination, and FIG. 5 shows the T-type frame. 11 shows a case where the structure such as 11 has an inclination.

The case of FIG. 4 will be described. Coordinates P ₀ to H ₀ , coordinates P ₁ and coordinates P ₂ to H ₁ ,
H ₂ is derived. H _t is known from the dimensions of the T-shaped mount 11. From the above, the length H _r from the top of the cross section of the rigid train line 10 to the sliding contact surface of the pantograph can be obtained by the following equation (1).

また、剛体電車線１０の摩耗分ｄについては、新品の剛体電車線１０の径をＨ_roとすると、次式（２）によって求めることができる。

Further, the wear d of the rigid train line 10 can be obtained by the following equation (2), where the diameter of the new rigid train line 10 is H _ro .

次に図５に示すようにＴ型架台１１などの構造物に傾きがある場合について説明する。図５に示すような場合についても、ラインレーザ型２次元形状計測センサ１４０によって取得される対象物の形状データから座標Ｐ₀、座標Ｐ₁及び座標Ｐ₂を求める。

Next, a case where the structure such as the T-shaped mount 11 has an inclination as shown in FIG. 5 will be described. Also in the case as shown in FIG. 5, the coordinates P ₀ , the coordinates P _1, and the coordinates P ₂ are obtained from the shape data of the object acquired by the line laser type two-dimensional shape measurement sensor 140.

As shown in the figure, the coordinate system includes a line constituting the reference plane as an x-axis and a line perpendicular thereto as a y-axis, and the center of the line laser type two-dimensional shape measurement sensor 140 is an origin (0, 0). The coordinates P ₀ , the coordinates P ₁ and the coordinates P ₂ are obtained based on the x and y coordinates.

  A straight line that is parallel to the inclination (= m) of the T-shaped mount 11 and passes through the origin can be expressed by the following equation (3).

ただし、

However,

である。

It is.

Here, the intersection point of y = mx with the perpendicular line dropped from P ₀ and y = mx is Q ₀ , and the intersection point of y = mx with the perpendicular line dropped from P ₁ and y = mx is Q _1. Also, let Q ₂ be the intersection of a perpendicular drawn from P _{2 with} respect to y = mx and y = mx.

From the point (x _o , y _o ) not on y = mx, the length v of the perpendicular line dropped to y = mx can be obtained by the following equation (5).

従って、長さＨ₁’、すなわちＰ₁とＱ₁との間の距離は、次式（６）によって求めるこ
とができる。

Therefore, the length H ₁ ′, that is, the distance between P ₁ and Q ₁ can be obtained by the following equation (6).

また、長さＨ₂’ 、すなわちＰ₂とＱ₂との間の距離は、次式（７）によって求めることができる。

Further, the length H ₂ ′, that is, the distance between P ₂ and Q ₂ can be obtained by the following equation (7).

また、長さＨ₀’ 、すなわちＰ₀とＱ₀との間の距離は、次式（８）によって求めることができる。

Further, the length H ₀ ′, that is, the distance between P ₀ and Q ₀ can be obtained by the following equation (8).

以上のようにして求められた長さＨ₁’、長さＨ₂’、長さＨ₀’、及びＴ型架台１１の
寸法Ｈ_tから、剛体電車線１０とＴ型架台１１との接点Ｒからパンタグラフの摺接面（線
）までの長さＨ_rは下式（９）によって求めることができる。

From the length H ₁ ′, the length H ₂ ′, the length H ₀ ′ determined as described above, and the dimension H _t of the T-type gantry 11, the contact point R between the rigid train line 10 and the T-type gantry 11 is obtained. The length H _r from the slidable contact surface (line) of the pantograph can be obtained by the following equation (9).

また、剛体電車線１０の摩耗分ｄについては、新品の剛体電車線１０の径をＨ_roとすると、次式（１０）によって求めることができる。

Further, the wear d of the rigid train line 10 can be obtained by the following equation (10), where the diameter of the new rigid train line 10 is H _ro .

以上のような本発明の剛体電車線測定装置１００の構成によれば、ラインレーザ型２次元形状計測センサ１４０によって剛体電車線１０の幅方向（車両進行方向と直角方向）にわたる形状を計測するので、剛体電車線の幅方向の摩耗に関する情報を得ることが可能となり、剛体電車線の状態を高精度で簡易に測定することができる。

According to the configuration of the rigid train line measuring apparatus 100 of the present invention as described above, the line laser type two-dimensional shape measurement sensor 140 measures the shape of the rigid train line 10 in the width direction (perpendicular to the vehicle traveling direction). In addition, it is possible to obtain information on wear in the width direction of the rigid train line, and the state of the rigid train line can be easily measured with high accuracy.

  Furthermore, the rigid railway line measuring apparatus 100 of the present invention has a simple structure and is reduced in size and weight, so that it can be easily installed in a maintenance vehicle and the measurement operation is relatively easy. Therefore, measurement is possible even without skilled workers trained for that purpose. Therefore, since complicated preparation for measurement and skilled workers are not required, it is possible to measure a rigid train line without cost. And since it is possible to detect and deal with abnormal wear of a rigid train line at an early stage by a simple measuring device such as the present invention, it becomes easy to maintain and manage the rigid train line.

  FIG. 6 is a diagram showing an example of measurement data of the rigid train line 10 acquired by the rigid train line measuring apparatus 100 of the present invention. The horizontal axis in FIG. 6 indicates the position data, and as described above, this is the rotary encoder 133, the support point detecting ultrasonic sensor 146, the kilometer recording push button 148, and the number tag position recording. It can be derived based on information from the push button 149.

  The upper data in FIG. 3 is wear data of the rigid train line 10, which can be calculated from the shape data obtained by the line laser type two-dimensional shape measurement sensor 140.

  Further, the data in the middle of FIG. 6 is the height data of the rigid train line 10, which can be obtained from the displacement detection value obtained by the height detection potentiometer 124.

Further, Figure 6 the lower part of the data is deviation data of rigid catenary 10, which position and displacement detection obtained by the sensor for detecting the position potentiometer 144 coordinates P ₀ obtained by the line laser type two-dimensional shape measurement sensor 140 It can be obtained from the value.

  As described above, in the rigid train line measuring apparatus 100 of the present invention, the wear data, height data, and displacement data of the rigid train line 10 corresponding to the position are displayed in a list, so the wear of the rigid train line 10 is displayed. Not only can the situation be recognized, but also the cause of wear of the rigid train line 10 can be studied.

DESCRIPTION OF SYMBOLS 10 ... Rigid train line, 11 ... T type mount frame, 12 ... Holding member, 100 ... Rigid train line measuring device, 110 ... Support base, 111 ... Side wall part of support base , 112 ... Support base top plate part, 113 ... Hole part, 120 ... Movable plate member, 121 ... Shaft member, 123 ... Constant load spring, 124 ... Height detection Potentiometer, 125 ... Displacement transmission rod-shaped member, 130 ... Measuring base, 131 ... Roller support member, 132 ... Sliding roller, 133 ... Rotary encoder, 140 ... Line laser Two-dimensional shape measuring sensor, 141 ... Linear rail, 144 ... Sensor position detection potentiometer, 145 ... Displacement transmission rod member, 146 ... Ultrasonic sensor for supporting point detection, 148 ... Kilometer Record Push-button, push button 149 ... number label position for recording, 200 ... personal computer

Claims (4)

A rigid train line measuring device that is mounted on a maintenance vehicle that moves on a rail and that measures a rigid train line that is fixed by a clamping member from both sides while being in contact with the bottom surface of a T-type gantry,
A sliding contact roller that is rotatably supported by a roller support member and that rotates with the movement of the maintenance vehicle in contact with the rigid train line;
A rotary encoder that detects rotation of the sliding roller;
A line laser type two-dimensional shape measurement sensor for measuring the shape of the rigid train line over the width direction;
A linear rail on which the line laser type two-dimensional shape measurement sensor is movably mounted;
A measurement base on which the roller support member and the linear rail are mounted;
A constant load spring that makes the sliding contact roller contact the rigid train wire with a constant load;
Coordinates P ₀ of the lowest point of the T-shaped frame measured by the line laser type two-dimensional shape measurement sensor ; and
At two points on the T-shaped gantry, the coordinates P ₁ and P ₂ passing through the coordinate P ₀ with the perpendicular of the middle point thereof , and
The dimension H _t of the T-frame , and
An apparatus for measuring a rigid train line, which calculates the wear of the rigid train line based on a new rigid train line H _ro . The apparatus for measuring a rigid train line according to claim 1, further comprising a height detection potentiometer for detecting a displacement of the measurement base. 3. The rigid body line measuring apparatus according to claim 1, further comprising a sensor position detecting potentiometer that detects a displacement of the line laser type two-dimensional shape measurement sensor. 4. 4. The rigid train line measuring device according to claim 1, further comprising a support point detection sensor that detects a position of an insulator that supports the rigid train line.

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