JP2004098822A - Power supply method for locomotive and its device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem on a conventional battery locomotive mainly used as a locomotive travelling through a construction tunnel that it becomes difficult for the battery locomotive having a limited travel distance to apply to the tunnel having a longer distance in these years. <P>SOLUTION: The locomotive 8 to which power is supplied from a trolley line 13 or a battery 9 mounted on the locomotive 8 with DC conversion of a AC power source 11 reciprocatingly travels on a rail 19. The AC power source 11 is installed on a travel passage, a double track section 72 is provided on the way of a single track section 71 of the rail 19, and the trolley line 13 is installed at a branch position between the single track section 71 and the double track section 72. Furthermore, power is supplied from the trolley line 13 to the locomotive 8 at the branch position from the single track section 71, the battery 9 is charged, and power is supplied from the battery 9 in a section such as the double track section 72 and a shaft section 70 where no trolley line 13 exists. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to power supply means for a locomotive used for transportation in a construction tunnel.
[0002]
[Prior art]
Conventionally, a locomotive that transports in a construction tunnel travels with power stored in a battery mounted on the locomotive, or obtains power from a trolley with a pantograph (hereinafter referred to as a current collector) provided above the locomotive. Was either running.
A standard battery locomotive can travel 20 km to 30 km on a single charge. The conventional construction tunnel length was 1 km to 3 km, so it is possible to travel about 10 round trips with one charge, and one traveling distance was short, so supply electricity at the end of the tunnel before discharging. Was completed.
[0003]
[Problems to be solved by the invention]
However, in recent years, the length of a construction tunnel has often been as long as 5 km to 10 km, so that one traveling distance has also become longer, and a situation in which a train must be stopped in the middle of the tunnel to supply power occurs. .
In recent years, tunnels having a small cross-sectional area have been increasing in order to reduce costs. In a tunnel with a small cross section, the wiring becomes complicated in the part where the locomotives cross each other (hereinafter referred to as a separation section), so it is difficult to supply power using a trolley wire.
[0004]
[Means for Solving the Problems]
The present invention employs a trolley wire power supply method that enables long-time running as a power supply method to a locomotive, and eliminates wiring in a separation section by running a battery only in a separation section where wiring is complicated, thereby reducing the length of the wiring. The power supply system is adapted to a tunnel with a short distance and a small cross section. In particular,
[0005]
Claim 1 is a locomotive which reciprocates on rails by supplying an electric power from a trolley line or a battery mounted on a locomotive by converting an AC power supply into a direct current, and the AC power supply is provided on a traveling route. A double-track section is provided in the middle of a single-track section of the rail, and a trolley wire is provided in the single-track section.The locomotive supplies power from the trolley wire in the single-track section, and charges the battery. Power is supplied from a battery.
[0006]
According to a second aspect of the present invention, the current collecting storage device is provided on the locomotive running on the rail, and the current collector is provided so as to be able to move out and to the side of the fuselage. It comprises a connecting arm, a lifting actuator for raising and lowering the connecting arm, and a horizontal actuator for moving the lifting actuator left and right.
[0007]
Claim 3 is a configuration in which an AC current supply wire and a trolley wire are laid in parallel with a rail of a locomotive running on a rail, and a plurality of rectifiers are arranged between the supply wire and the trolley wire. Rectifiers are arranged and connected to the rectifier at substantially equal intervals, one ends of a plurality of branch wires are connected to the rectifier, and the other ends of the plurality of branch wires are connected to a trolley wire at substantially equal intervals. .
[0008]
The locomotive according to claim 4, wherein the locomotive travels reciprocally on rails by supplying power from a trolley line by converting an AC power supply to DC and supplying power from a battery mounted on the locomotive. A current collector for supplying more power is arranged, a discharge compensation constant voltage device is connected to the current collector, a battery and a motor are connected to the discharge compensation constant voltage device, and a trolley wire is connected by the discharge compensation constant voltage device. When power is supplied, the power is supplied stably to the motor and the battery is charged.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the invention will be described.
1 is a view showing a locomotive traveling mechanism, FIG. 2 is a front view of a locomotive and a tunnel in a single track section, FIG. 3 is a side view of the locomotive, FIG. 4 is a view showing a current collector storage mechanism, and FIG. 6 is a front view of the current collector, FIG. 6 is a side view of the current collector, FIG. 7 is a plan view of the current collector, FIG. 8 is a bottom view of the pickup, and FIG. 9 is a view taken along line AA in FIG. 10 is a front view of the pickup, FIG. 11 is a rear view of the pickup, FIG. 12 is a diagram showing a trolley wire and a hanger, FIG. 13 is a block diagram showing a power supply configuration to a motor, and FIG. FIG.
[0010]
First, a locomotive traveling mechanism according to the present invention will be described with reference to FIG.
The locomotive 8 runs on rails 19 laid in the tunnel 1 in the longitudinal direction. The running section of the locomotive 8 is separated from the tunnel entrance shaft section 70 to the face section 74, which is a tunnel construction section, by the shaft section 70 constituted by a double track, the single track section 71, and the double track by the crossing section of the train. A section 72 and a subsequent equipment section 73 are configured, and the locomotive 8 travels in these sections sequentially. Reference numeral 94 denotes a branch position from a single line to a double line. A transport vehicle 10 is connected to the locomotive 8, and the load is loaded on the transport vehicle 10 so that the locomotive 8 runs tow.
[0011]
An AC power supply 11 for supplying an AC current is provided inside the tunnel 1 or outside the tunnel 1. An electric wire 23 is installed in the longitudinal direction inside the tunnel 1, and power is supplied to the electric wire 23 from the AC power supply 11. . A trolley wire 13 is disposed in the single-line section 71 in parallel with the electric wire 23, and a plurality of trolley wires 13 are arranged between the electric wire 23 and the trolley wire 13 at appropriate intervals in the longitudinal direction in the tunnel 1. The rectifiers 12 are interposed and connected. The AC current supplied from the AC power supply 11 is converted into DC by the rectifier 12 and supplied to the trolley wire 13. The locomotive 8 is equipped with a current collector 14, and the current collector 36 of the current collector 14 contacts the trolley wire 13 and is supplied with electric power. The electric power drives a motor, and the locomotive 8 runs. Like that.
[0012]
In the section 74 where the trolley line 13 is not provided, the following facility section 73, the separation section 72, and the shaft section 70, the locomotive 8 runs on the power from the battery 9 mounted on the fuselage. At the boundary between the section where the trolley wire 13 is not provided and the section where the trolley wire 13 is provided, a pickup guide 15 to be described later is provided, and the pickup guide 15 guides the current collector 36 to contact the trolley wire 13. , The current collector 36 and the trolley wire 13 are connected.
[0013]
As shown in FIG. 2, the trolley wire 13 is supported by a trolley wire support 17 in a single-track section 71 so as to be in contact with the current collector 14 of the locomotive 8. The trolley wire support 17 is formed in an F shape when viewed from the side, and a support is vertically suspended downward from tips of upper and lower support rods projecting in the horizontal direction, and a trolley wire 13 is installed at a lower end of the support. .
As shown in FIG. 12, the conductor 45 of the trolley wire 13 is covered with an insulator 29 so that only the lower portion is exposed, and the exposed portion is configured to be in contact with the current collector 14. I have. The insulator 29 of the trolley wire 13 is held and supported by a hanger 30 at a predetermined interval, and is fixed to the trolley wire support 17. The hanger 30 has an upper portion of a hanger body 35 fixed to an insulator 32 via an insulator pin 31. An upper portion of the insulator 32 is covered with a cap 33, and an upper portion of the cap 33 is attached to a tip of the trolley wire support 17 by a bolt 34. Fixed.
[0014]
A fence 50 is provided in a vacant space on the opposite side of the locomotive 8 from the side where the trolley line is provided (shown in FIG. 2), and the area between the fence 50 and the inner wall 51 of the tunnel is a sidewalk for workers. 52.
[0015]
Then, in the separation section 72 shown in FIG. 5, the current collector 36 of the current collector 14 is stored in the fuselage of the locomotive 8 so that the current collector 14 does not interfere when the locomotive 8 rubs each other in a tunnel having a small cross-sectional area. I have to.
The current collector 36 of the current collector 14 that contacts the lower part of the trolley wire 13 in the single-line section 71 moves slightly downward by the current collector storage device 22 and moves away from the trolley wire 13 when the locomotive 8 moves to the separation section 72. It is stored in the eight locomotives. That is, the current collector 14 is disposed so as to be able to move out and to the side of the fuselage, and its configuration will be described later.
[0016]
A pickup guide 15 is provided at the start and end sides of the separation section 72 and at the end of the shaft section 70, that is, at the end of the trolley wire 13 where the trolley wire 13 is interrupted, so that the contact with and separation from the current collector 14 is smooth. To be able to. Hereinafter, the configuration of the pickup guide 15 will be described with reference to FIGS.
The pickup guide 15 includes a pickup guide main body 25, a support fitting 27 fixed to the upper part of the pickup guide main body 25 with a hexagonal bolt 26, and a joint 28 fixed to a lower part of the pickup guide main body 25. The pickup guide body 25, which is a housing, is open at the bottom, and is disposed in the tunnel 1 with the opening facing the locomotive 8 so that the current collector 36 is inserted into the opening. The upper surface portion is inclined downward and the side surface portion is inclined inward so that the opening becomes narrower from the entrance side 25a to the exit side 25b. When the locomotive 8 traveling in the section where the trolley line 13 is not wired enters the trolley line 13 wiring section, the current collector 14 enters through the widely opened entrance side 25a of the pickup guide body 25 and gradually narrows in the rear. After passing through the pickup guide main body 25, the end of the trolley wire 13 located on the outlet side 25 b is contacted, and electric power can be received from the trolley wire 13. Conversely, when the locomotive 8 traveling in the trolley line wiring section goes out of the trolley line 13 wiring section, the current collector 36 leaves the end of the trolley line 13 via the pickup guide 15.
[0017]
As shown in FIGS. 3 and 4, when the direction of arrow F is forward, the locomotive 8 has running wheels 53, 53,... Are connected to the running wheels 53 via a motor and a transmission. At the front end of the fuselage 75, a connecting member 76 is arranged so as to be connected to a trolley or the like so that the load can be carried. The battery 9 is mounted on the center of the fuselage 75, and the current collector storage device 22 is arranged on one side of the fuselage 75, so that the current collector 14 can be moved in and out of one side (left side). An operation unit 77 is disposed at the rear of the body 75, and the operation unit 77 has an operation panel 79 erected on the side of a step 78, a controller 62 is disposed in the operation panel 79, and an operation panel 80 are arranged. On the operation panel 80, operation buttons, a meter, a travel lever 81, and the like are arranged.
[0018]
As shown in FIG. 13, a discharge compensating constant voltage device 21 is connected to the current collector 14 arranged in the locomotive 8, and the discharge compensating constant voltage device 21 is connected via the battery 9 and the motor drive circuit 96. Connected to the motor 24. The electric power thus supplied from the trolley wire 13 via the current collector 14 drives the motor 24 from the discharge compensation constant voltage device 21 and charges the battery 9.
[0019]
The discharge compensating constant voltage device 21 supplies power to the motor 24 and the battery 9, but does not need to drive the motor 24 at the time of downhill or braking, for example. Power is supplied to the battery 9 to charge it. Note that regenerative braking can be performed during deceleration. Further, since the voltage from the rectifier 12 has large voltage fluctuation, a stable voltage is supplied by the discharge compensation constant voltage device 21. Further, when the discharge compensation constant voltage device 21 detects overcharge of the battery 9, it disconnects the charging circuit to protect the battery 9.
When the locomotive 8 travels in a section where the trolley wire 13 is not provided, the discharge compensating constant voltage device 21 prevents the backflow to the current collector 14 side, and supplies the electric power from the battery 9 to the motor 24. Supply. The locomotive 8 is provided with a sensor 60 and is connected to a controller 62 serving as control means, in order to determine whether or not the section is where the trolley line 13 is provided. The sensor 60 is configured to detect the detection target 61 disposed at a branch portion between the start end and the end position of the separation section 72. That is, a detection target 61 formed of a magnet, a protrusion, or the like is disposed near the rail 19 at the branch portion, and the sensor 60 is disposed on the body of the locomotive 8 in accordance with the position where the detection target 61 is disposed. .
[0020]
In such a configuration, when the sensor 60 provided on the locomotive 8 detects the detection target 61 when entering the separation section 72 or the shaft section 70 from the single track section 71, the current collector 14 is automatically stored, The controller 62 controls the power supply to the motor 24 to switch from trolley power supply to battery power supply. This switching is performed by the discharge compensation constant voltage device 21.
Then, when entering the single track section 71 from the separation section 72 or the shaft section 70, the sensor 60 detects the detection target 61, automatically protrudes the current collector 14, and supplies power to the motor 24 from battery power to trolley power. Is controlled by the controller 62. Detected objects 64 and 64 are disposed at the entrance of the shaft section 70, and detected objects 65 are disposed at the entrance of the succeeding equipment section 73. Electric power is supplied from the battery 9 by detection of the sensor 60 in the same manner as described above. It is controlled to be.
[0021]
Also, as shown in FIG. 14, a plurality of branch wires 63 are connected in parallel between the rectifier 12 and the trolley wire 13 so that the rectifier 12 can stably supply power to the trolley wire 13. ing. In other words, the resistance of the electric wire increases as the distance from the rectifier 12 increases, so that the voltage drop increases, the supply voltage decreases, the traveling speed decreases, and the control becomes unstable. Are arranged and connected at substantially equal intervals, one ends of a plurality of branch wires 63 are connected to the rectifier 12, and the other ends of the plurality of branch wires 63 are substantially equal. It is connected to the trolley wire 13 at intervals. That is, by connecting the branch wires 63, 63... Between the trolley 12 and the trolley wire 13 at a position separated by a predetermined distance from one rectifier 12, power of a substantially uniform voltage is supplied. I have. In this embodiment, a point connected to the trolley wire 13 closest to the rectifier 12 is defined as a point D, a point bisecting between the points D and D is defined as a point A, and the point A is a point A. If the distance to the power supply section B of one rectifier is defined as a power supply section B, and a point obtained by further dividing the power supply section B of one rectifier into six is a0, a1, a2, a3, a4, a5, a6 from the left side of the drawing, the intervals are equal. The branch wires 63 are connected to a1, a3, and a5 so that the power supply sections C have substantially equal intervals. When connected in this way, the power supply section C from each branch wire has a length that is one third of the section A in which power is supplied from one rectifier 12, and the voltage drop is small. The trolley wire is disconnected between the sections B, which are one rectifier power supply section, and the section B. Note that, in the present embodiment, the power supply section is configured to be one-third, but by narrowing the power supply section of one wire, an effect of reducing the degree of voltage drop may be obtained. It does not limit how much the power supply section is divided.
[0022]
Next, the storage mechanism of the current collector 36 of the current collector 14 will be described in detail with reference to FIGS. 3, 4, 6, and 7. FIG.
First, the configuration of the current collector 14 will be described.
The current collectors 14 are provided in a pair in the upper and lower sides so that positive and negative DC currents can be supplied. The current collector 14 is provided with a bracket 39 at the center in the front-rear direction. The bracket 39 has a substantially U-shape in a side view, and the opening portions are respectively arranged frontward and rearward, and the back plates 40 are fixed by bolting. ing. The pivots 41, 41 are arranged vertically in front and rear of the bracket 39 and are rotatably supported. One end of each of the arms 37, 37 is pivotally supported by pins 82 on a side surface of the pivots 41, 41 in the middle of the vertical direction. The arms 37 protrude forward and backward, and are pivotally supported so as to be vertically rotatable. Springs 44, 44 are interposed between the other side of the arms 37, 37 and the upper plates 42, 42 fixed on the upper surface of the bracket 39, and are urged to rotate the arms 37, 37 upward. ing. Reference numeral 84 denotes a stopper for restricting the arms 37 from rotating upward.
[0023]
At the other ends of the arms 37, 37, attachments 85, 85 of current collectors 36, 36 which contact the trolley wire 13 and supply electric power, are pivotally supported by shafts 86, 86 so as to be rotatable left and right. Current collectors 36 are pivotally supported by pins 87 so that they can swing back and forth. One end of a lead wire 38 is connected to the lower part of the current collectors 36, and the other end portions 38 a of the lead wires 38 are connected to the discharge compensation constant voltage device 21.
[0024]
The current collector 14 is attached to the current collector housing 22. As shown in FIG. 4, the current collector storage device 22 includes an up-down drive device 88 and a left-right drive device 89, a rail 90 is disposed on the body 75 in the left-right direction, and a slide table 91 is placed on the rail 90. It is mounted on one end of the slide base 91 and is pivotally connected to the tip of a piston rod of a cylinder 92 as a horizontal actuator. The cylinder 92 is fixed on the body 75, and the cylinder 92 is constituted by an electric cylinder. 62. An elevating cylinder 93 is vertically arranged as an elevating actuator on the slide table 91, and the elevating cylinder 93 is also constituted by an electric cylinder and connected to the controller 62. Connecting arms 37, 37 are provided horizontally above and below a piston rod 95 of the elevating cylinder 93, and the connecting arms 37, 37 are laterally protruded from the body 75. Current collectors 14 are attached.
[0025]
In such a configuration, when the locomotive 8 reaches the separation section 72, the sensor 60 automatically detects the detection target 61, activates the lifting cylinder, lowers the current collectors 14, and collects the current. The electron 36 is separated from the trolley wire 13. Next, the cylinders 92 are contracted, and the slides 91 are slid to move the current collectors 14 toward the body 75, and the current collectors 14 are stored in the body 75. When the storage is completed, the motor 24 is driven to move the locomotive 8 forward. It should be noted that sensors are arranged at the stroke ends of the cylinder 92 and the elevating cylinder 93, and when the extension and contraction are detected, the completion of the storage and extension is detected.
In the separation section 72, if there is an oncoming vehicle, the vehicle stops at the evacuation position, and if there is no oncoming vehicle, the vehicle moves forward and the sensor 60 detects the detection target 61. Then, the current collector storage device 22 is driven. That is, the cylinder 92 is extended to project the current collectors 14 to the side, and further, the elevating cylinder 93 is contracted, and the current collectors 14 are raised to bring the current collector 14 into contact with the trolley wire 13. When the rear current collector 36 is not in contact with the trolley wire 13, it is guided by the pickup guide 15 during forward movement and contacts below the trolley wire 13, so that power is supplied from the trolley wire 13. .
In the separation section 72, the points are controlled so that the right and left rails are used when moving forward and the left and right sides are used when moving backward. The same control is performed in the shaft section 70.
[0026]
【The invention's effect】
The present invention is configured as described above, and has the following effects.
[0027]
That is, a locomotive that reciprocates on rails by supplying AC power from a trolley wire or a battery mounted on a locomotive and converting the AC power into DC, as described in claim 1, An AC power supply is installed, a double track section is provided in the middle of a single track section of the rail, a trolley wire is provided in the single track section, and the locomotive supplies power from the trolley wire in the single track section, and charges the battery. Power is supplied from the battery in the double track section, so the traveling distance can be shortened by supplying power from the battery.In the single track section, the battery is charged, so there is no need to stop and charge the locomotive. Trolley wires in sections are omitted, and trolley wiring is not complicated. When the locomotive travels along a narrow travel route such as a tunnel, the locomotive can be reciprocated to face a double track section on the way.
[0028]
According to a second aspect of the present invention, a current collecting storage device is provided on a locomotive running on a rail, and a current collector is provided so as to be able to move out and to the side of the fuselage. Since it is composed of a connecting arm to be attached, an elevating actuator for elevating and lowering the connecting arm, and a horizontal actuator for moving the elevating actuator left and right, power can be supplied from the side of the locomotive, and when traveling in a tunnel or the like. In this case, the upper space can be increased, and the load amount of luggage and the like can be increased. Also, when traveling or storing in a double track section, the current collector can be stored, the body width of the locomotive can be reduced, the tunnel diameter can be reduced when traveling in a tunnel, and the storage space can be reduced. Can be.
[0029]
According to a third aspect of the present invention, an AC current supply wire and a trolley wire are installed in parallel with a rail of a locomotive running on a rail, and a plurality of rectifiers are arranged between the supply wire and the trolley wire. Since rectifiers were arranged and connected to the electric wires at substantially equal intervals, one ends of the plurality of branch wires were connected to the rectifiers, and the other ends of the plurality of branch wires were connected to the trolley wires at substantially equal intervals. The voltage supplied from the rectifier to the trolley wire has a small voltage drop and can be supplied at a substantially constant voltage even when the rectifier is apart from the rectifier, so that the supply voltage fluctuation is reduced, and stable running and control are possible.
[0030]
A locomotive that reciprocates on rails by supplying power from a trolley line by converting an AC power supply to DC and supplying power from a battery mounted on the locomotive, wherein the trolley is connected to the locomotive. A current collector for supplying power from the wire is arranged, a discharge compensation constant voltage device is connected to the current collector, a battery and a motor are connected to the discharge compensation constant voltage device, and a trolley wire is connected by the discharge compensation constant voltage device. When power is supplied from the motor, the power is supplied stably to the motor and the battery is charged. This allows the battery to be charged when there is excess power at the time of driving the motor, so that power can be supplied efficiently.
[Brief description of the drawings]
FIG. 1 is a diagram showing a locomotive traveling mechanism.
FIG. 2 is a front view of a locomotive and a tunnel in a single track section.
FIG. 3 is a side view of the locomotive.
FIG. 4 is a diagram showing a current collector storage mechanism.
FIG. 5 is a front view of a locomotive and a tunnel in a separation section.
FIG. 6 is a side view of a current collector.
FIG. 7 is a plan view of a current collector.
FIG. 8 is a bottom view of the pickup.
FIG. 9 is a view taken along line AA in FIG. 8;
FIG. 10 is a front view of the pickup.
FIG. 11 is a rear view of the pickup.
FIG. 12 is a diagram showing a trolley wire and a hanger.
FIG. 13 is a block diagram showing a configuration for supplying power to a motor.
FIG. 14 is a diagram showing intervals of power supply to a trolley line.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Tunnel 8 Locomotive 9 Battery 11 AC power supply 12 Rectifier 13 Trolley wire 14 Current collector 15 Pickup guide 19 Rail 21 Discharge compensation constant voltage device 22 Current collector storage device 23 Electric wire 24 Motor 36 Collector 37 Connection arm 63 Branch electric wire 71 Single line section 72 Separation section 75 Body 88 Vertical drive 89 Left and right drive 92 Cylinder 93 Elevating cylinder 94 Branch position

Claims (4)

A locomotive that converts AC power into DC and supplies power from a trolley wire or from a battery mounted on a locomotive and that reciprocates on rails. A double track section is provided in the middle of a single track section, and a trolley wire is erected in the single track section. The locomotive supplies power from the trolley wire and charges the battery in the single track section. A power supply method for a locomotive, characterized in that: A current collecting storage device is provided on a locomotive running on a rail, and a current collector is provided so as to be able to move out and back to the side of the fuselage. The current collecting storage device includes a connecting arm for mounting a current collector, A power feeding device for a locomotive, comprising: a lifting actuator for raising and lowering an arm; and a horizontal actuator for moving the lifting actuator left and right. An AC current supply wire and a trolley wire are laid in parallel with a rail of a locomotive running on a rail, and a plurality of rectifiers are arranged between the supply wire and the trolley wire, and the rectifiers are arranged at substantially equal intervals with respect to the supply wire. A rectifier is arranged and connected to the rectifier, one end of a plurality of branch wires is connected to the rectifier, and the other ends of the plurality of branch wires are connected to a trolley wire at substantially equal intervals. apparatus. A locomotive that converts AC power into DC and supplies power from a trolley wire, or from a battery mounted on a locomotive, and reciprocates on rails to supply power from the trolley wire to the locomotive. When a current collector is arranged, a discharge compensation constant voltage device is connected to the current collector, a battery and a motor are connected to the discharge compensation constant voltage device, and power is supplied from a trolley wire by the discharge compensation constant voltage device. A power supply device for a locomotive, characterized by stably supplying power to a motor and charging a battery.

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