JP3945157B2 - Power supply equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a contact-type feeding device that prevents dust including abrasion powder from scattering around the surroundings and that can be miniaturized and made light in weight. SOLUTION: A feeding rail 18 is laid along a moving path of a stacker crane 4. The feeding rail 18 is covered by a cover 19, in which an opening part is formed over the moving path. The end part 26a of a mounting member 26 provided on the crane 4 enters inside the cover 19 from the opening part. A collecting brushe 27, which slidably contacts with the feeding rail 18 in the over 19, is provided on the end part 26a of the mounting part 26. A dust- collecting means 34 is provided that sucks dust inside the cover 19.

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a power supply facility that supplies power to a moving body used in a clean room or the like.
[0002]
[Prior art]
Conventionally, as this type of power supply equipment, for example, there is a power supply equipment for a stacker crane of an automatic warehouse. As shown in Japanese Examined Patent Publication No. 53-21185, the automatic warehouse is composed of a shelf for storing articles and a self-propelled stacker crane (moving body) for taking in and out articles.
[0003]
As shown in FIG. 9, a plurality of traveling wheels 82 and guide rollers 83 are provided below the stacker crane 81. The traveling wheels 82 roll on the upper surface of the traveling rail 85 laid on the floor 84, and the guide rollers 83 roll on the side surfaces of the traveling rail 85. A traveling motor 86 that rotationally drives any traveling wheel 82 is provided below the stacker crane 81. Here, the power supply equipment of the stacker crane 81 is configured as follows.
[0004]
That is, a power supply rail 88 is installed along the travel path of the stacker crane 81, and a current collecting brush 89 that is in sliding contact with the power supply rail 88 is provided below the stacker crane 81. The electric power supplied to the power supply rail 88 is supplied from the current collecting brush 89 to the traveling motor 86 of the stacker crane 81 and the traveling motor 86 is driven. As a result, the traveling wheel 82 is rotationally driven, and the stacker crane 81 is supported and guided by the traveling rail 85 to travel.
[0005]
[Problems to be solved by the invention]
However, in the above-described conventional type, the current collecting brush 89 is in sliding contact with the power supply rail 88 as the stacker crane 81 travels, so that abrasion powder may be generated and scattered around, so that it is difficult to use in a clean room or the like. There is a problem such as.
[0006]
Further, as described above, as disclosed in JP-A-7-2310, there is a contactless power supply facility as a format different from the contact power supply facility. In other words, an induction line unit that allows a high-frequency sine wave current to flow along the traveling path is laid, and a pickup unit that resonates with the frequency of the induction line unit to generate an electromotive force is provided below the stacker crane.
[0007]
However, the non-contact type power supply equipment as described above has a problem that the cost becomes high and the pickup unit becomes large and heavy.
An object of the present invention is to provide a contact-type power supply facility that prevents dust such as wear powder from scattering to the surroundings and that can be further reduced in size and weight.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, in the power supply facility according to the first invention, power supply means is disposed along the movement path of the moving body,
The power supply means is covered with a cover,
The moving body is provided with a current collecting means slidably contacting the power feeding means,
Dust collecting means for sucking dust generated by the current collecting means slidingly contacting the power feeding means is provided on the ground side along the movement path ,
The dust collecting means is connected to an air intake hole formed on the lower surface of the cover,
In the cover, an adhesive capturing means for capturing dust is provided,
The capturing means is provided avoiding the location of the intake hole .
[0009]
According to this, when the moving body moves along the moving path, the current collecting means comes into sliding contact with the power feeding means as the moving body moves. As a result, electric power is supplied from the power feeding means to the moving body via the current collecting means. At this time, the dust generated when the current collecting means comes into sliding contact with the power feeding means is sucked by the dust collecting means, and therefore does not scatter around. Further, the dust is not only sucked by the dust collecting means but also caught by the sticky catching means. Thereby, the dust can be more reliably removed.
[0010]
In the power supply facility according to the second aspect of the present invention, an opening is formed in the cover over the movement path,
The tip of the mounting member provided on the moving body enters the cover body from the opening,
The current collecting means is provided at the distal end portion of the mounting member, and is in sliding contact with the power feeding means in the covering body.
The dust collecting means sucks dust in the covering body.
[0011]
According to this, since the current collecting means is in sliding contact with the power feeding means in the covering body, dust generated by the sliding contact remains inside the covering body and is further sucked by the dust collecting means. Therefore, it is possible to prevent the dust from scattering outside the cover body. Thus, by providing the cover and the dust collecting means in the contact type power supply facility, dust can be prevented from being scattered, so that the cost can be reduced as compared with the conventional non-contact type power supply facility. Furthermore, since the cover and dust collecting means are provided on the ground side, not on the mobile body side, the power supply equipment provided on the mobile body side is smaller and lighter than conventional contactless power supply equipment. The
[0012]
In the power supply facility according to the third aspect of the present invention, the dust collecting means includes a suction device that sucks the air in the cover body and discharges it outside, and an intake pipe connected between the suction hole and the suction device of the cover body. Configured,
A filter that captures dust is provided on a suction path that is sucked from the cover through the intake pipe to the suction device.
[0013]
According to this, the air in the cover is sucked by the suction device, and is discharged to the outside through the suction pipe. At this time, the dust in the cover is sucked together with the air and captured by the filter. Thus, dust is removed, and only clean air that has passed through the filter is discharged from the suction device to the outside.
[0014]
In the power supply facility according to the fourth aspect of the invention, the dust collecting means is connected between the plurality of suction devices for sucking the air in the cover body and discharging it to the outside, and the plurality of suction holes and the suction device of the cover body. A plurality of intake pipes, wherein the plurality of intake pipes are connected to the intake holes of the cover at a predetermined pitch, and among the plurality of suction apparatuses, a plurality of intake pipes are connected to one suction apparatus. It is what.
[0015]
According to this, the air in the cover body is sucked by the plurality of suction devices, and discharged from the suction device to the outside through the plurality of suction pipes. At this time, since a plurality of intake pipes are connected to one suction device, the number of suction devices is smaller than the number of intake pipes, and cost reduction is further promoted.
[0016]
In the power supply facility according to the fifth aspect of the present invention, the power supply means is provided downward in the cover body,
The current collecting means faces upward from below the power supply means and slides on the power supply means.
The intake holes and the capturing means are respectively positioned below the current collecting means .
[0018]
In the power supply facility according to the sixth aspect of the present invention, a cover member that covers the gap between the attachment member and the cover body in the opening is attached to the cover body.
The covering member can be attached to and detached from the covering body in a state where the current collecting means is provided at the tip of the mounting member and located in the covering body.
[0019]
According to this, since the gap between the mounting member and the cover in the opening is covered by the cover member, it is ensured that the dust generated inside the cover passes through the gap and is scattered outside the cover. Can be prevented. Further, by removing the covering member from the covering body, it is possible to perform maintenance on the power feeding means and the current collecting means in the covering body from the opening.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
As shown in FIGS. 7 and 8, reference numeral 1 denotes an automatic warehouse installed in the clean room 43. The automatic warehouse 1 includes a shelf 3 for storing a plurality of articles 2 and an article 2 with respect to the shelf 3. And a stacker crane 4 (an example of a moving body). The stacker crane 4 is provided in a passage 5 formed between a pair of opposed shelves 3, and a lower frame 6 that can run along the front of the shelf 3 and a post that is erected on the lower frame 6. 7, which is supported and guided by 7, and can be moved up and down, and a fork device 9 that is provided on the platform 8 and that moves in and out of the shelf 3 to put in and out the article 2.
[0021]
The lower frame 6 is provided with a plurality of traveling wheels 11, a plurality of guide rollers 12, and a traveling motor 13 that rotationally drives any of the traveling wheels 11. As shown in FIG. 1, a traveling rail 15 is laid along the moving path 14 of the stacker crane 4 on the floor 10 in the passage 5, and the traveling wheels 11 roll on the upper surface of the traveling rail 15. At the same time, as each guide roller 12 rolls on both side surfaces of the traveling rail 15, the stacker crane 4 is supported and guided by the traveling rail 15 and moves.
[0022]
The automatic warehouse 1 is provided with power supply equipment for supplying electric power to the driving motor 13 and the driving devices (not shown) or the control device (not shown) of the loading platform 8 and the fork device 9. . The power supply facility is configured as follows.
[0023]
That is, as shown in FIGS. 1 and 2, a power supply rail 18 (an example of power supply means) is laid along one side of the traveling rail 15 along the movement path 14. The power supply rail 18 is covered with a cover body 19 (an example of a cover body), and the cover body 19 is attached to a bracket 20 installed on the floor 10 (on the ground side).
[0024]
As shown in FIG. 4, the cover body 19 is formed in a C-shaped cross section by an upper plate portion 21, a lower plate portion 22, a pair of left and right side plate portions 23 and 24, and an opening portion 25. The opening 25 is formed in one side plate 23 facing the traveling rail 15 over the moving path 14. As shown in FIG. 1, the power supply rail 18 is fixedly attached to the lower surface of the upper plate portion 21.
[0025]
As shown in FIGS. 1 and 2, a mounting member 26 is detachably provided on one side surface of the lower frame 6 of the stacker crane 4 via a plurality of bolts 44. The front end portion 26a of the mounting member 26 protrudes into the cover body 19 from the opening 25, and the front end portion 26a of the mounting member 26 is slidably contacted with the power supply rail 18 from below in the cover body 19. A current collecting brush 27 (an example of current collecting means) is provided. The current collecting brush 27 is arranged in a tandem type distributed in a pair of front and rear in the direction of the moving path 14. A cable (not shown) connected to each current collecting brush 27 is guided to the stacker crane 4 through the inside of the mounting member 26.
[0026]
As shown in FIGS. 2 and 3, a cleaning brush 29 that sweeps the lower surface of the power supply rail 18 is disposed in front of and behind the current collecting brush 27. Each of the pair of front and rear cleaning brushes 29 is attached to the attachment member 26 via an attachment bracket 30.
[0027]
As shown in FIGS. 1 and 4, the side plate portion 23 of the cover body 19 has a cover plate 31 (cover) covering the gap between the lower portion of the opening portion 25 and the upper portion of the attachment member 26. An example of a member) is provided. The cover plate 31 is detachably provided via fasteners such as screws 32 and bolts.
[0028]
As shown in FIGS. 1, 5, and 6, the floor 10 (on the ground side) along the moving path 14 is provided with a dust collecting means 34 that sucks dust such as abrasion powder in the cover body 19. It has been. The dust collecting means 34 includes a suction device 35 that sucks the air in the cover body 19 and discharges it outside the clean room 43, and an intake pipe 36 connected between the cover body 19 and the suction device 35. ing. That is, one end of the intake pipe 36 is connected to the intake hole 37 formed in the lower plate portion 22 of the cover body 19, and the other end of the intake pipe 36 is connected to the suction device 35. As a result, a suction path 38 is formed that is sucked from the cover body 19 through the suction hole 37 and the suction pipe 36 to the suction device 35. Further, the intake hole 37 is provided with an air filter 39 (such as a HEPA filter) for capturing the dust.
[0029]
As shown in FIG. 6, a plurality of intake holes 37 are formed at predetermined pitches P in the length direction of the cover body 19, and one end of the plurality of intake pipes 36 is connected to each intake hole 37. It is connected to the. On the other hand, a plurality of suction devices 35 are also installed, but a plurality of (three in FIG. 6) intake pipes 36 are connected to each suction device 35.
[0030]
As shown in FIG. 5, the suction devices 35 are installed outside the clean room 43, and the intake pipes 36 are connected to the suction device 35 from the cover body 19 through the floor.
[0031]
As shown in FIG. 6, an adhesive double-sided tape 41 (an example of a capturing unit) that captures the dust is attached to the upper surface of the lower plate portion 22 of the cover body 19. The double-sided tape 41 is affixed while avoiding the attachment location of the air filter 39.
[0032]
Hereinafter, the operation of the above configuration will be described.
When the stacker crane 4 moves along the movement path 14, the current collecting brush 27 comes into sliding contact with the power supply rail 18 inside the cover body 19, whereby electric power passes from the power supply rail 18 through the current collecting brush 27 to the stacker crane 4. Are supplied to the traveling motor 13, the driving devices, the control device, and the like. At this time, dust such as abrasion powder generated when the current collecting brush 27 is brought into sliding contact with the power supply rail 18 stays in the cover body 19 and is sucked together with the air in the cover body 19 by the suction device 35. As a result, the dust is captured by the air filter 39, and only clean air that has passed through the air filter 39 passes through the intake pipe 36 and is discharged from the suction device 35 to the outside of the clean room 43.
[0033]
Furthermore, since the dust generated inside the cover body 19 is captured by the double-sided tape 41, the dust can be more reliably removed.
As described above, it is possible to prevent dust from being scattered outside the cover body 19, thereby enabling use in facilities such as the clean room 43 that dislike dust.
[0034]
Further, since the cover body 19 and the dust collecting means 34 are provided in the contact type power supply facility, dust can be prevented from being scattered, so that the cost can be reduced as compared with the conventional non-contact type power supply facility. Furthermore, since the cover body 19 and the dust collecting means 34 are provided not on the stacker crane 4 but on the floor 10 side (ground side), the power supply equipment provided on the stacker crane 4 side is a conventional non-contact type. Compared to power supply equipment, it is smaller and lighter.
[0035]
Further, as shown in FIG. 1, the gap between the mounting member 26 and the side plate portion 23 of the cover body 19 in the opening 25 is covered by the cover plate 31, so that dust generated inside the cover body 19 is not removed from the gap. It is possible to reliably prevent the light from passing through the cover body 19 and being scattered outside. In addition, foreign matter outside the cover body 19 can be prevented from entering the inside of the cover body 19 through the gap.
[0036]
In the maintenance, as shown in FIG. 4, the power supply rail 18 and the current collecting brush 27 can be exchanged from the opening 25 by removing the screws 32 and removing the cover plate 31 from the cover body 19.
[0037]
Further, as shown in FIG. 6, since three intake pipes 36 are connected to one suction device 35, the number of suction devices 35 is smaller than the number of intake pipes 36, and the cost is further reduced. Promoted.
[0038]
Further, when the stacker crane 4 moves along the movement path 14 and the current collecting brush 27 moves in sliding contact with the power supply rail 18 and moves together with the stacker crane 4, the cleaning brush 29 (see FIGS. 2 and 3) is supplied with the power supply rail. Since the lower surface of 18 is swept, dust or the like adhering to the lower surface of the power supply rail 18 can be removed.
[0039]
In the above embodiment, the automatic warehouse 1 is installed in the clean room 43. However, the automatic warehouse 1 is not limited to the clean room 43, and may be a place where dust other than the clean room 43 is hated, or in a normal place. There may be.
[0040]
In the above embodiment, as shown in FIG. 5, the suction device 35 is provided outside the clean room 43, but may be provided inside the clean room 43.
In the above embodiment, as shown in FIG. 6, three intake pipes 36 are connected to one suction device 35, but a plurality or a single number other than three may be connected.
[0041]
In the above embodiment, the intake pipe 36 is laid under the floor, but may be laid on the floor 10.
In the above-described embodiment, the stacker crane 4 that travels on the floor side is described as an example of the moving body. However, a traveling cart or the like, or a suspended monorail train or the like may be used.
[0042]
In the said embodiment, although the said current collection brush 27 is arrange | positioned by the tandem type | mold distributed to the front-and-rear pair (front and rear two places), the single type type | mold arrange | positioned only at one front and back is not distributed back and forth. .
[0043]
In the above embodiment, the filter 39 is provided as shown in FIG. 1, but the filter 39 may be omitted.
In the above embodiment, as shown in FIG. 6, the double-sided tape 41 is provided as an example of the capturing means, but the double-sided tape 41 may be omitted.
[0044]
In the above embodiment, as shown in FIG. 1, the power supply rail 18 is attached downward to the lower surface of the upper plate 21 of the cover body 19, while the current collecting brush 27 is directed upward. The direction of the power supply rail 18 and the current collecting brush 27 is not limited to the vertical direction. For example, the power supply rail 18 is attached to the inner surface of the other side plate 24 of the cover body 19 sideways (to the left). Thus, the current collecting brush 27 may be horizontally (rightward), or conversely, the power supply rail 18 may be rightward and the current collecting brush 27 leftward.
[0045]
Further, in the above-described embodiment, the distal end portion 26 a of the mounting member 26 protrudes into the cover body 19 from the opening portion 25 formed in the one side plate portion 23, but the opening formed in the other side plate portion 24. The distal end portion 26 a may be protruded from the portion 25 into the cover body 19. Further, when the power supply rail 18 is attached to the inner surface of the other side plate portion 24 of the cover body 19 and the direction of the power supply rail 18 and the current collecting brush 27 is set to the left and right sideways, the opening 25 formed in the upper plate portion 21 The distal end portion 26a may be inserted into the cover body 19 and the current collecting brush 27 may be provided on the distal end portion 26a.
[0046]
【The invention's effect】
As described above, according to the first aspect of the present invention, dust generated in the cover body when the current collecting means is brought into sliding contact with the power feeding means is sucked by the dust collecting means and therefore does not scatter around. Further, the dust generated in the cover is not only sucked by the dust collecting means but also caught by the sticky catching means. Thereby, the dust can be more reliably removed.
[0047]
According to the second aspect of the present invention, the dust and the dust collecting means can be prevented by providing the contact type power supply facility with the cover and the dust collecting means, so that the cost can be reduced as compared with the conventional contactless power supply facility. Furthermore, since the cover and dust collecting means are provided on the ground side, not on the mobile body side, the power supply equipment provided on the mobile body side is smaller and lighter than conventional contactless power supply equipment. The
[0048]
According to the third aspect of the invention, the dust in the cover body is sucked together with the air and captured by the filter. Thus, dust is removed, and only clean air that has passed through the filter is discharged from the suction device to the outside.
[0049]
According to the fourth invention, since a plurality of intake pipes are connected to one suction device, the number of suction devices is smaller than the number of intake pipes, and cost reduction is further promoted.
[0051]
According to the sixth invention, since the gap between the attachment member and the cover in the opening is covered by the cover member, dust generated inside the cover passes through the gap and is scattered outside the cover. Can be reliably prevented. Further, by removing the covering member from the covering body, it is possible to perform maintenance on the power feeding means and the current collecting means in the covering body from the opening.
[Brief description of the drawings]
FIG. 1 is a front view of a power supply facility according to an embodiment of the present invention.
FIG. 2 is a partially cutaway plan view of the power supply facility.
3 is an AA arrow view in FIG. 2;
FIG. 4 is a cross-sectional view of the cover body of the power supply equipment.
FIG. 5 is a front view of the dust collecting means of the power supply facility.
FIG. 6 is a plan view of the dust collecting means of the power supply equipment.
FIG. 7 is a partially cutaway perspective view of an automatic warehouse having a power supply facility.
FIG. 8 is a view of a stacker crane that is powered by a power feeding facility.
FIG. 9 is a front view of a conventional contact power supply facility.
[Explanation of symbols]
4 Stacker crane (moving body)
14 Movement path 18 Power supply rail (power supply means)
19 Cover body (cover body)
25 Opening 26 Mounting member 27 Current collecting brush (current collecting means)
31 Cover plate (cover member)
34 Dust collecting means 35 Suction device 36 Intake pipe 38 Suction path 39 Air filter 41 Double-sided tape (capturing means)
P Predetermined pitch

Claims (6)

A power feeding means is arranged along the moving path of the moving body,
The power supply means is covered with a cover,
The moving body is provided with a current collecting means slidably contacting the power feeding means,
Dust collecting means for sucking dust generated by the current collecting means slidingly contacting the power feeding means is provided on the ground side along the movement path ,
The dust collecting means is connected to an air intake hole formed on the lower surface of the cover,
In the cover, an adhesive capturing means for capturing dust is provided,
The power supply facility, wherein the capturing means is provided so as to avoid the intake hole . An opening is formed in the cover over the movement path,
The tip of the mounting member provided on the moving body enters the cover body from the opening,
The current collecting means is provided at the distal end portion of the mounting member, and is in sliding contact with the power feeding means in the covering body.
2. The power feeding facility according to claim 1, wherein the dust collecting means sucks dust in the covering body. The dust collecting means is composed of a suction device that sucks the air in the cover body and discharges it outside, and an intake pipe connected between the suction hole of the cover body and the suction device,
The power supply equipment according to claim 1, wherein a filter for capturing dust is provided on a suction path that is sucked into the suction device from the cover through the intake pipe. The dust collecting means is composed of a plurality of suction devices for sucking the air in the cover body and discharging it to the outside, and a plurality of intake pipes connected between the plurality of suction holes and the suction device of the cover body,
The plurality of intake pipes are connected to the intake holes of the cover body at predetermined pitches,
The power supply equipment according to any one of claims 1 to 3, wherein a plurality of intake pipes are connected to one suction device among the plurality of suction devices. The power supply means is provided downward in the cover,
The current collecting means faces upward from below the power supply means and slides on the power supply means.
The power supply facility according to any one of claims 1 to 4, wherein the intake hole and the capturing means are respectively positioned below the current collecting means . A cover member that covers a gap between the attachment member and the cover body in the opening is attached to the cover body,
The power supply equipment according to claim 2, wherein the cover member is detachable from the cover body in a state in which the current collecting means is provided at the distal end portion of the attachment member and located in the cover body.

Images