JP2006273257A - Electric source truck - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric source truck capable of being easy carried into the inside of a tunnel in which a electric source of an electric tool is hardly ensured and not generating an exhaust gas. <P>SOLUTION: A movement traveling body and a movement grip part 7 (37) are mounted to a support provided with an operation board 10 (40) having connectors 11 (41) connected with the electric tool and charging battery 8, 8 (38) for feeding electricity to the electric tool connected through the connectors 11 (41). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a power supply carriage for supplying electric power to various electric tools in repair work for cracks and collapses on the inner surface of a tunnel, particularly repair work for a long-distance waterway tunnel such as a hydroelectric power plant.

Conventionally, various electric tools such as a rechargeable battery type lifting tool and a stirring tool are known as electric tools used in the repair work on the inner surface of the tunnel. Since only a certain amount of work can be performed, a large number of replacement rechargeable batteries must be prepared when working for a long time.
However, for example, when working in a long-distance tunnel mine spanning several kilometers, it is inefficient to charge a large number of rechargeable batteries in advance and carry them in. Also, even if you install the generator in the tunnel mine and get power from it, the working environment will deteriorate due to exhaust gas filling, especially in small diameter tunnels such as water tunnels of hydroelectric power stations, It is not realistic to secure the power source of the electric tool in the tunnel mine by these methods.

Therefore, in practice, the above-mentioned various electric tools are installed in the tunnel mine work site by performing temporary electrical work such as installing a generator (non-patent document) outside the tunnel mine and wiring the cable from there. The current situation is that it can be used in
Denyo Corporation, “Small Engine Generator”, “Generator”, [online], Internet, <URL: http://www.denyo.co.jp/products/generator.html>, [February 25, 2005 Search

  However, in the above-mentioned temporary electrical work, it is necessary to perform a lot of work such as cable wiring over a long distance of several kilometers, fixing of the cable to the inner surface of the tunnel for measures against inundation, installation of distribution boards and branch wiring, etc. For this reason, sometimes half of the repair work period was spent, and the efficiency of the entire work was poor, and the work cost increased accordingly.

  Therefore, the present invention provides a power supply carriage that can be easily carried into a tunnel mine where it is difficult to secure the power supply of the electric tool and does not generate exhaust gas, thereby eliminating the need for temporary electrical work and repairing the tunnel. It is intended to shorten the construction period of the entire construction and to reduce the construction cost.

  The power supply carriage according to the first aspect of the present invention is connected to the operation panel 10 (40) having the connectors 11... (41...) For connecting the electric power tool via the connectors 11. A traveling body for movement and a gripping part for movement 7 (37) are attached to a support body provided with rechargeable batteries 8, 8 (38) for supplying power to the electric tool.

  The present invention according to claim 2 is a robust metal housing having a dustproof and waterproof specification in which the support body houses the rechargeable battery therein and the operation panel having the connector is disposed on the outer surface. The power supply carriage according to claim 1, wherein the traveling body for movement is attached to the lower part of the metal casing, and the holding part for movement is attached to the upper part.

  The power supply carriage according to the third aspect of the present invention is connected to the operation panel 10 (40) having the connectors 11... (41...) For connecting the electric tools via the connectors 11. After the support body including the rechargeable batteries 8 and 8 (38) for supplying power to the electric tool is mounted, the moving wheels 25 and 25 are attached to the lower ends in the same manner as the front legs 23 having the moving wheels 22 and 22 attached to the lower ends. It is supported by a vehicle height adjustment mechanism C that allows the spread angle with the leg 26 to be freely changed.

  According to a fourth aspect of the present invention, the rechargeable batteries of each power supply truck are connected by performing necessary wiring between the plurality of power supply trucks, and the rechargeable batteries connected to the power supply truck are either 4. The power supply cart according to claim 1, wherein the power tool can be supplied with power through the connector of each power supply cart.

  According to a fifth aspect of the present invention, there is provided a power supply carriage according to the first, second, third, or fourth aspect that includes a lighting device that receives power from the rechargeable battery and is turned off when a predetermined time elapses after the lighting. is there.

Since the power supply carriage according to the first to fifth aspects of the present invention includes the traveling body for movement, it can be easily carried into the tunnel mine, and if this is used, for example, repair of a tunnel having a small cross section and a long distance. In the construction, temporary electrical work is not required, so the process can be shortened and the construction cost can be reduced.
If a rechargeable battery with a sufficient capacity is mounted on this power supply carriage, a long work of about 12 hours per day can be performed without charging.

  Since the power supply bogie of the present invention according to claim 2 has a robust metal casing that is dust-proof and waterproof, the support body is used in a severe field environment such as a waterway tunnel of a hydroelectric power plant with a lot of dust, moisture and mud. Withstand use.

  Since the power supply carriage according to the third aspect of the present invention is configured to support the support body by adjusting the height by the vehicle height adjustment mechanism, for example, there is a pool of water in the bottom of the water channel tunnel, mud, earth and sand, etc. Locations with a lot of deposits can be easily driven.

  Since the power supply cart of the present invention according to claim 4 connects the rechargeable batteries of the plurality of power supply carts and can supply power to the electric tool from any one or each connector, for example, each power supply cart can be reduced in size. It is easy to carry in the work if they are manufactured and carried individually to the work site, and the power supply required for the work can be easily secured by connecting the rechargeable battery of each power supply truck at the work site. it can.

  Since the power supply carriage according to the fifth aspect of the present invention includes the illumination device, it is convenient because it can project light to the work site. Moreover, since the lighting device is turned off when a predetermined time elapses after being turned on, it is possible to prevent useless consumption of the rechargeable battery due to forgetting to turn it off.

  An operation panel 10 (40) having a connector 11... (41...) For connecting a power tool, and a rechargeable battery 8 for supplying power to the power tool connected via the connector 11. 8 (38) is a power supply cart in which a traveling body for movement and a gripping part for movement 7 (37) are attached.

  Hereinafter, a power supply carriage A according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 includes a standing frame 3 standing on the upper surface of the rear edge of the bottom plate 2 and rubber moving wheels (moving traveling bodies) 5 at both ends of an axle 4 disposed on the lower surface side of the rear edge of the bottom plate 2. , 5, and upright legs 6, 6 attached to the left and right of the lower surface of the front edge of the bottom plate 2.
A moving grip 7 is attached to the machine frame 1 above the upright frame 3.

The machine frame 1 can be made to travel by the moving wheels 5 and 5 by pulling or pushing the gripping part 7 for movement in a tilted state. The standing legs 6 and 6 can be placed in a standing state by being grounded.
As the traveling body for movement, an endless track (so-called Caterpillar (registered trademark)) may be employed instead of the moving wheels 5 and 5.

  8 and 8 are rechargeable batteries having a rated voltage of 12 V and a rated capacity of 50 Ah, which are mounted and fixed in a row on the bottom plate 2 of the machine casing 1.

  Reference numerals 9 and 9 denote fluorescent lamps (illuminating devices) attached to the left and right sides of the upright frame 3 that are lit by receiving power from the rechargeable batteries 8 and 8. The fluorescent lamps 9 and 9 are attached to the upright frame 3 in a state of being housed in a dustproof and waterproof case.

Reference numeral 10 denotes an operation panel attached to the upright frame 3 of the machine frame 1 so as to be positioned above the rechargeable batteries 8 and 8, and on the front surface thereof, one or a plurality of lifting tools, stirring tools, and the like are electrically driven. A plurality of connectors 11... For connecting a tool (not shown) are provided.
The connector 11... Has a plurality of connectors 11 a and 11 a for extracting a voltage of 12 V connected to any one of the rechargeable batteries 8 and 8, and a 24 V in which the two rechargeable batteries 8 and 8 are connected in series. There are connectors 11b and 11b for taking out the voltage of.
Therefore, the rechargeable batteries 8 and 8 can be supplied with power by connecting one or more DC 12V or 24V electric tools widely used in the past to the connectors 11a, 11a, 11b, and 11b with a required cable. It is like that.
These connectors 11a, 11a, 11b, and 11b are large-sized to prevent heat generation, and are dust-proof and drip-proof to prevent dust and leakage.
Further, the connectors 11a, 11a, 11b, 11b and the rechargeable batteries 8, 8 are connected by sufficiently thick conductors to prevent excessive heat generation.

  In addition to the connectors 11a, 11a, 11b, and 11b, the operation panel 10 includes a main power switch 12 that intermittently supplies power to the power tools connected to the connectors 11a, 11a, 11b, and 11b, the rechargeable battery 8, 8 is an appropriate position on the front and side of the switches 13, 13, the energy saving reset switch 14, the voltmeter, the ammeter, the capacity meter, etc., for turning on and off the power supply to the fluorescent lights 9, 9 intermittently. In preparation.

  The fluorescent lamps 9 and 9 are turned on when the switches 13 and 13 are turned on. However, when a predetermined time elapses, the fluorescent lamps 9 and 9 are automatically turned off by an energy saving circuit in the operation panel 10. When it is automatically turned off, it is turned on again by pressing the energy saving reset switch 14. This prevents the fluorescent lamps 9 and 9 from being forgotten to be turned off and prevents the rechargeable batteries 8 and 8 from being consumed more than necessary.

  The power supply carriage A has a width of about 55 cm and a height of about 1 m, and the rechargeable batteries 8 and 8 are housed in a dust-proof and waterproof specification robust metal casing fixed to the machine casing 1. In addition, the operation panel 10 also has various circuits and wirings housed in a dust-proof and water-proof robust metal casing fixed to the machine casing 1.

  As described above, the structure of the power supply carriage is such that the rechargeable batteries 8 and 8 housed in the housing and the operation panel 10 housing various circuits in the housing are attached to the machine frame 1 as the support. For example, a robust metal casing with the required height, depth, and width is used as the support body, and a rechargeable battery, various circuits, and wiring are packaged inside. In addition, connectors, switches, and instruments are arranged on the outer surface, axles such as moving wheels are rotatably mounted on the lower rear side of the casing, and standing legs are mounted on the lower front side of the casing. The fluorescent lamp may be attached to the left and right side surfaces of the housing, and the moving grip may be attached to the upper rear side.

  Although the total weight of the power supply carriage A is about 70 kg, it is moved by the moving wheels 5 and 5 by grasping the moving gripping part 7 and pulling it, so that one worker can easily go to the work site. Can be brought in.

The tunnel repair method using the power supply carriage A is suitable for repair work of a small-diameter channel tunnel of a hydroelectric power plant, and it is constructed as follows.
First, the power truck A is carried into the tunnel mine.
Next, at the work site, a power tool such as a lifting tool or a stirring tool is connected to the connectors 11a, 11a or 11b, 11b to supply power to the power tool.
Then, with this electric power tool, a lifting operation necessary for crack repair and cross-sectional repair on the inner surface of the tunnel, a mixing stirring operation such as an epoxy resin adhesive, and the like are performed.
Further, if necessary, the fluorescent lamps 9 and 9 are turned on to project light onto the work site.

  According to this construction method, there is no need for conventional temporary electrical work, and it is possible to simply supply power to the electric tool after connection and to start work immediately after it is carried in. Tunnel repair work The construction period can be shortened and the construction cost can be reduced.

As the above-mentioned electric tool, a DC-driven tool similar to that widely used in the past is used. Therefore, the power supply carriage A can be manufactured at a low cost without the need for incorporating an inverter circuit or the like, and the internal circuit is simple. Unnecessary consumption of power can be suppressed.
In addition, since the power supply carriage A includes an energy saving circuit, it is possible to prevent wasteful consumption of the rechargeable batteries 8 and 8 due to forgetting to turn off the fluorescent lamps 9 and 9.
Since the operation panel 10 is equipped with a capacity meter, the remaining amount of the rechargeable batteries 8 and 8 can be confirmed at all times. If it is confirmed that the remaining amount is low, the fluorescent lamps 9 and 9 are turned off. For example, the consumption of the rechargeable batteries 8 and 8 can be delayed.

According to the demonstration experiment, the 24 hour DC lifting tool with an average current during driving of 11.1 A has a time operating rate (ratio of the usage time of the lifting tool to the total working time) of about 30%, and the average current is 0.8. If the hourly availability of fluorescent lamps 7 and 7 (2 lamps) is 100%, the rechargeable batteries 8 and 8 should have a capacity of 49.56 Ah even if 12 hours of work is performed. Was confirmed.
Therefore, if the rechargeable batteries 8 and 8 having a rated capacity of 50 Ah are used as described above, a long work of 12 hours per day can be used without charging. When the rechargeable batteries 8 and 8 are charged after the work is completed, they can be used again for the next day's work.
The rechargeable batteries 8 and 8 can have an appropriate capacity, but it is preferable that at least one day of work can be performed without charging.

The rechargeable batteries 8, 8, operation panel 10, and fluorescent lamps 9, 9 are housed in a dust-proof and drip-proof robust case as described above, and the connectors 11 a, 11 a, 11 b, 11 b are also dust-proof. ， Because it is drip-proof, this power supply truck A can withstand use in harsh field environments such as a tunnel with a lot of dust, moisture and mud.
Moreover, unlike the generator / generator, no exhaust gas or noise is generated, so that the working environment is not deteriorated even if it is carried into the tunnel mine.

  There are places where there is a puddle in the bottom of the hydroelectric power station and there are many deposits such as mud and earth and sand, and it is difficult to travel depending on the moving wheels 5 and 5 of the power supply truck A in such places. Although it is difficult to carry in, it is possible to carry in the power supply carriage B with the vehicle height adjusting mechanism of the present embodiment shown in FIGS.

  The power supply carriage B with a vehicle height adjusting mechanism is a power supply carriage A ′ having the same structure as the power supply carriage A (the same reference numerals are assigned to the same portions as the power supply carriage A, and the description thereof is omitted). It is mounted and fixed on the adjusting mechanism C.

  The vehicle height adjusting mechanism C is used to move the front legs 23 having moving wheels 22 and 22 attached to both left and right lower ends of a frame 21 having a substantially mountain shape when viewed from the front, and to the left and right lower ends of a frame 24 having a substantially mountain shape when viewed from the front. The rear legs 26 to which the wheels 25, 25 are attached are made freely changeable in the front-rear direction by a cylinder 27, and the height of the power supply carriage A 'is mounted and fixed. It is supported freely.

  Reference numeral 28 denotes a water level sensor which is attached to the standing frame 3 of the power supply carriage A ′ and detects the lower water level. The vehicle height adjusting mechanism C is arranged according to the detected value of the water level by the water level sensor 28. The angle of expansion between the front leg 23 and the rear leg 26 is adjusted by adjusting the height of the front leg 23 and the rear leg 26, thereby adjusting the vehicle height by moving the power supply carriage A 'up and down. .

  The tunnel repair method using the power supply carriage B with the vehicle height adjusting mechanism is a tunnel that has a puddle in the bottom or a lot of sediment such as mud and earth and sand, which is difficult to travel with the power supply carriage A of the first embodiment. Is preferable.

In this construction method, first, the power supply carriage B with the vehicle height adjustment mechanism is carried into the tunnel pit. As described above, the power supply carriage B with the vehicle height adjustment mechanism is provided with the vehicle height adjustment mechanism C. There are many places where there is a lot of sediment such as mud and earth and sand, so it is easy to carry in.
At the work site, a power tool such as a lifting tool or a stirring tool is connected to the connectors 11a, 11a or 11b, 11b to supply power to the power tool.
And, with this electric power tool, the lifting work necessary for crack repair and cross-sectional repair of the tunnel inner surface, mixing stirring work such as epoxy resin adhesive, etc. are performed, and the fluorescent lamps 9 and 9 are turned on as necessary. To project the work.
The power supply carriage B with the vehicle height adjustment mechanism moves the power supply carriage A ′ upward in accordance with the water level at the site by the vehicle height adjustment mechanism C even when the work must be carried out by placing it in a water pool. It can be prevented from being flooded.

Although the power supply carriage A has a width of about 55 cm as described above, it may be necessary to perform work with a power tool in a narrow space where it cannot be loaded.
In such a case, one or two small power supply carts D according to the present embodiment having a width about half that of the power supply cart A shown in FIG. It can carry in and can supply electric power to a power tool from now on.

31, an upright frame 33 is attached to the rear edge of the bottom plate 32, and an axle 35 having moving wheels 34, 34 is attached to the lower surface side of the rear edge of the bottom plate 32. This is a machine frame (support) in which standing legs 36 are arranged on the left and right of the front edge. Reference numeral 37 denotes a moving gripping part fixed above the upright frame 33.
As the traveling body for movement, an endless track (so-called Caterpillar (registered trademark)) may be employed instead of the moving wheels 34, 34.

On the bottom plate 32 of the machine casing 31, only one rechargeable battery 38 which is the same as the rechargeable batteries 8 and 8 provided in the two power supply carriages A of the first embodiment is mounted and fixed.
Further, one fluorescent lamp 39 that is the same as the fluorescent lamp provided in the two power supply carriages A is attached to one side of the upright frame 33.

Reference numeral 40 denotes an operation panel attached to the upright frame 33, which includes a plurality of connectors 41... For connecting one or a plurality of power tools (not shown) such as a lifting tool, a stirring tool, etc. It has in the position. These connectors include a connector 41a for extracting a voltage of 12V from the rechargeable battery 38, another power supply carriage D prepared separately, and two power supply carriages D and D mounted on the two power supply carriages D and D when required wiring is made. There is a connector 41b that is connected in series to each of the rechargeable batteries 38, 38 so that a voltage of 24V can be taken out from the rechargeable batteries 38, 38.
These connectors 41... Are made large in order to prevent heat generation, and are made dustproof and dripproof for dust and electric leakage countermeasures, and are sufficiently thick between the rechargeable battery 38. It is connected by a conductor to prevent excessive heat generation.

  The operation panel 40 further includes a main power switch for intermittently supplying power to the connector 41, a switch for turning on / off the fluorescent lamp 39, an energy saving reset switch, a voltmeter, an ammeter, a capacity meter, and the like. Yes.

  The power supply carriage D fixes the rechargeable battery 38 and the operation panel 40 to a machine frame (support) 31 in a state where the battery 38 and the operation panel 40 are housed in a dust-proof and waterproof robust metal casing, respectively. The fluorescent lamp 39 is fixed, and the rechargeable battery, various circuits and wirings are collectively stored in a casing (support) having a required height, depth, and width, and the outer surface thereof is placed. It is also possible to provide connectors, instruments, switches, etc., a moving traveling body and a standing leg at the lower part of the housing, a fluorescent lamp at the side, and a moving grip at the upper rear side. Good.

  The tunnel repair method using this power supply carriage D is suitable when it is necessary to perform work in a narrow space, and it is constructed as follows.

That is, one power supply carriage D is carried in, and power is supplied to a 12V electric tool connected to the connector 41a, thereby performing various operations.
Since the width of the power supply truck D is about 25 to 30 cm, which is about half that of the power supply truck A, there is a gap enough for workers to enter even in a narrow space where the power supply truck A cannot be carried. If it is present, it can be carried in, and since it is lighter than the power supply truck A, it can be carried in through a place with a steep terrain more easily.

When it is necessary to work with a 24V electric tool, two power supply carts D are carried in, and appropriate rechargeable batteries 38, 38 are connected in series by appropriate wiring between them. The voltage of 24V can be taken out from the connector 41b of either or both of the power supply carts D.
In this case, it is preferable that both power supply carts D and D are fixed in a state where they can be subdivided by lock mechanisms (not shown) provided respectively. When both are fixed, it is convenient that a connector (not shown) provided for both is connected and the above wiring is performed.
Then, the 24V electric tool connected to the connector 41b is fed to perform various operations.

It is a front view of the power trolley | bogie which concerns on Example 1 of this invention. It is the side view. It is the side view which showed (a) the state which made the vehicle height low, and (b) the state which made it high of the power trolley | bogie with the vehicle height adjustment mechanism which concerns on Example 2 of this invention. It is explanatory drawing which showed the use condition of the said power supply trolley with a vehicle height adjustment mechanism. It is the front view which showed two power supply trolley | bogie which concerns on Example 3 of this invention.

Explanation of symbols

A, B, D power supply cart
C Vehicle height adjustment mechanism
8,38 rechargeable battery
11,11a, 11b, 41,41a, 41b Connector
10,40 Operation panel
9,39 Fluorescent lamp (lighting device)
5,22,35 Moving wheel
6,36 Standing legs
7,37 Moving grip
23 Front legs
26 Rear legs

Claims (5)

  A traveling body for movement and a gripping part for movement are attached to a support body including an operation panel having a connector for connecting an electric tool and a rechargeable battery for supplying power to the electric tool connected via the connector. A power supply cart characterized by that.   The support body is a robust and dustproof and waterproof metal housing in which the rechargeable battery is housed and the operation panel having the connector is disposed on the outer surface. 2. The power supply carriage according to claim 1, wherein the traveling body for movement is attached, and a gripping part for movement is attached to the upper part thereof.   A support body having an operation panel having a connector for connecting a power tool and a rechargeable battery for supplying power to the power tool connected via the connector is moved to the lower end in the same manner as a front leg having a moving wheel attached to the lower end. A power bogie characterized in that it is supported by a height adjustment mechanism that can freely change the angle of expansion with the rear leg to which the wheel is attached.   The rechargeable batteries of each power supply cart are connected by performing necessary wiring between the plurality of power supply carts, and the plurality of connected rechargeable batteries are connected via the connectors of any one or each of the power supply carts. The power supply carriage according to claim 1, 2 or 3, wherein the power tool can be powered. 5. The power supply carriage according to claim 1, further comprising an illumination device that receives power from the rechargeable battery and that is turned off when a predetermined time elapses after being turned on.

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