JP4471376B2 - Vehicle noise reflection preventing apparatus and noise reflection preventing method - Google Patents

Description

  The present invention relates to a vehicle noise reflection preventing apparatus and a noise reflection preventing method thereof for preventing noise generated from a current collecting device when the vehicle travels from being reflected by one of sound insulation plates on both sides of the current collecting device. About.

  A conventional vehicle noise reduction device includes sound insulation plates (pantograph covers) on both sides of a current collector (pantograph) that moves in contact with an overhead wire trolley (see, for example, Patent Document 1). In this prior art 1, the sliding sound generated by the sliding plate of the current collector contacting the trolley wire when the vehicle travels, the sparking sound generated when the sliding plate moves away from the trolley wire, Current collecting system noise such as aerodynamic sound generated when the electric device cuts the wind is sound-insulated by a sound insulation plate to reduce such current collecting system noise.

  Further, the conventional sound insulating plate storage device (prior art 2) includes a detecting means for detecting a tunnel and an elevating means for raising and lowering the sound insulating plate based on the detection result of the detecting means. In this prior art 2, when the vehicle travels in the tunnel, the sound insulation plates on both sides of the current collector are lowered and stored in the vehicle, and the aerodynamic force generated by the sound insulation plate when the vehicle travels in the tunnel is reduced. Fluctuations are reduced, and the ride quality is improved by suppressing the shaking of the vehicle.

JP 2003-219505 A

JP2003-276599

FIG. 3 is a configuration diagram schematically illustrating a traveling state of a vehicle including a conventional sound insulation board. FIG. 3A illustrates a state in which the vehicle is traveling on a down line, and FIG. The vehicle is traveling on the line.
As shown in FIG. 3 (A), for example, when a vehicle 104 such as a Shinkansen (registered trademark) travels leftward in a direction A (from the front side to the back of the page) on a double-track down line 102A, the down line is generally used. 102A wayside W ₁ side priority higher noise control of noise control than is far wayside W ₂ side from the downstream line 102A (travel direction left side of the vehicle 104) (right side in the traveling direction of the vehicle 104) is important near. However, the prior art 1, for example, when the vehicle 104 downlink line 102A as shown in FIG. 3 (A) is traveling, the wayside W ₁ side noise control is important, the traveling direction right When the current collecting system noise S incident on the sound insulating plate 107 is reflected, there is a problem that the noise on the line W ₁ side increases. In this case, the noise by installing a sound insulating plate 106 only wayside W ₁ side by the sound insulating plate 106 and 107 of the two faces for fixing only one plane, which is reflected in the wayside W ₂ side by the sound insulating plate 107 Can be reduced. However, as shown in FIG. 3 (B), in the case of a vehicle 104 such as a Shinkansen (registered trademark) , the vehicle 104 traveling on the down line 102A usually turns back at the terminal station and turns in the B direction (front side from the back of the page). ) On the up line 102B. For this reason, when the sound insulation plate 106 is installed only on the line W ₁ side, there is a problem that noise on the line W ₂ side where the sound insulation plate 107 does not exist increases when traveling on the up line 102B.

  On the other hand, in the prior art 2, when the vehicle is traveling in the tunnel section, the sound insulating plates on both sides of the current collector are simultaneously lowered and stored in the vehicle body to reduce the shaking of the vehicle body due to air fluctuations. However, in the prior art 2, when the vehicle is traveling in a light section other than the tunnel section, the sound insulation plates on both sides of the current collector are simultaneously raised from the vehicle body and exposed from the vehicle body. For this reason, the prior art 2 has a problem that the noise on the railway side where noise countermeasures are regarded as important is increased as in the prior art 1.

  An object of the present invention is to provide a vehicle noise reflection preventing apparatus and a noise reflection preventing method thereof that can reduce current collecting system noise reflected by a sound insulating plate with a simple structure.

The present invention solves the above-mentioned problems by the solving means described below.
In addition, although the code | symbol corresponding to embodiment of this invention is attached | subjected and demonstrated, it is not limited to this embodiment.
According to the first aspect of the present invention, the noise generated from the current collector (5) when the vehicle (4) travels is reflected by one of the sound insulation plates (6, 7) on both sides of the current collector. A device for preventing noise reflection of a vehicle to prevent, the first drive unit (9) for driving the sound insulation plate (6) on one side so that it can be moved in and out, and the sound insulation plate (7) on the other side. A second drive unit (10) that freely drives, and a control unit (11) that drives and controls the first and second drive units. The control unit is configured such that the vehicle is a double track (2A, 2B). The left and right sound insulation plates (6) appear and the right and left sound insulation plates (7) are stored, and the first and second drive units are driven and controlled. When the vehicle passes the double track on the right side, the sound insulation board (7) on the right side in the traveling direction appears and the left side in the traveling direction appears. As tone plate (6) is stored, a noise antireflection device for a vehicle according to claim (8) that drives and controls the first and the second driving unit.

According to a second aspect of the present invention, in the vehicle noise reflection preventing apparatus according to the first aspect, the control unit is arranged on the left side (W ₁ ) side in the traveling direction when the vehicle passes the double line on the left side. When the noise on the right side of the traveling direction (W ₂ ) is reduced with respect to the noise, the first and second drive units are driven and controlled so that the operation of the sound insulation plate is reversed. When passing the double line on the right side, when the noise on the left side (W ₁ ) side of the traveling direction is reduced more than the noise on the right side (W ₂ ) side of the traveling direction , the appearance of the sound insulation board is reversed. Thus, a vehicle noise reflection preventing apparatus is characterized in that the first and second driving units are driven and controlled.

In the invention of claim 3, the noise generated from the current collector (5) when the vehicle (4) travels is reflected by one of the sound insulation plates (6, 7) on both sides of the current collector. A method of preventing noise reflection of a vehicle, wherein when the vehicle passes through the double line (2A, 2B) on the left side, the sound insulation plate (6) on the left side in the traveling direction appears and the sound insulation plate (7) on the right side in the traveling direction is provided. And storing the sound insulation board (7) on the right side in the traveling direction and storing the sound insulation board (6) on the left side in the traveling direction when the vehicle passes the double line on the right side. is there.

According to a fourth aspect of the present invention, in the vehicle noise reflection preventing method according to the third aspect , when the vehicle is passing the double line on the left side, the traveling direction is more than the noise on the left side along the traveling direction (W ₁ ). When reducing the noise along the right side (W ₂ ) side, the sound insulation board is reversed, and when the vehicle is passing the double line on the right side, the noise along the right side (W ₂ ) side of the traveling direction A noise reflection preventing method for a vehicle, characterized in that when the noise on the line along the left side of the traveling direction (W ₁ ) side is reduced, the operation of the sound insulation plate is reversed.

  According to the present invention, it is possible to reduce the current collecting system noise reflected by the sound insulating plate with a simple structure.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a block diagram schematically showing a vehicle noise reflection preventing apparatus according to a first embodiment of the present invention. FIG. 1 (A) shows a state in which the vehicle is traveling on a down line. (B) shows a state where the vehicle is traveling on the up line.
Lines W ₁ and W ₂ shown in FIG. 1 are lands (areas) that exist along the track 2, and are divided into two with the track 2 in between. The road W ₁ is land on the side closer to the center line of the down line 2A (the side far from the center line of the up line 2B). For example, in the case of the Tohoku Shinkansen, the vehicle 4 heads for the down line 2A from Tokyo toward Sendai. This is the land on the left side (mountain side) of the direction of travel. The road W ₂ is land on the side closer to the center line of the up line 2B (the side far from the center line of the down line 2A). For example, in the case of the Tohoku Shinkansen, the vehicle 4 heads the up line 2B from Sendai toward Tokyo. This is the land on the left side (sea side).

  The roadbed 1 is a base that supports the track 2 and is a structure that supports a load when the vehicle 4 passes through. The roadbed 1 is, for example, roadbed concrete installed in a slab track section, or a ground roadbed compacted using high-quality natural soil.

  The track 2 is a path (railway) on which the vehicle 4 travels, and is a slab plate (track) composed of a pair of rails 2a for guiding the wheels of the vehicle 4 and a rectangular plate-like precast concrete plate for supporting the pair of rails 2a. Slab) 2b and the like. As shown in FIG. 1, the track 2 is a double line composed of two main lines, and is composed of a down line 2A and an up line 2B. For example, in the case of the Tohoku Shinkansen, the down line 2A is a track on which the vehicle 4 travels from Tokyo toward Sendai. It is a running track.

  The overhead line 3 is an overhead train line installed over the track, and is supported at a support point by a support structure (not shown) at a predetermined interval. The trolley wire 3 a is an electric wire that contacts the sliding plate 5 a of the current collector 5, and supplies a load current to the vehicle 4 when the sliding plate 5 a of the current collecting device 5 moves in contact therewith.

The vehicle 4 is a moving body that travels along the track 2. The vehicle 4 is an electric vehicle such as a train or an electric locomotive, and is a railway vehicle such as a Shinkansen (registered trademark) that travels at a high speed. The vehicle body 4a is a structure for loading and transporting passengers. The vehicle body 4a includes a roof upper surface 4b on which equipment on the roof such as the current collector 5 is installed.

  The current collector 5 is a device for guiding power from the trolley wire 3 a of the overhead wire 3 to the vehicle 4. The current collector 5 includes a sliding plate 5a that contacts the trolley wire 3a, a current collecting boat (boat body) 5b to which the sliding plate 5a is attached, and a frame 5c that supports the current collecting boat 5b and moves up and down in the vertical direction. Etc. The current collector 5 shown in FIG. 1 is, for example, a single arm type pantograph that is asymmetric with respect to the traveling direction of the vehicle 4 (directions A and B in the figure) and can be used in only one direction during high-speed use due to aerodynamic performance. It is.

  The sound insulating plates 6 and 7 are devices that block noise generated from the current collector 5. The sound insulation plates 6 and 7 are movable two-side walls (pantograph covers) arranged on both sides of the current collection device 5 so as to cover the side surfaces of the current collection device 5 (hide the noise source). A sound absorbing material or the like is attached to the inner side surfaces of 6 and 7 so as to face the current collector 5. The sound insulating plates 6 and 7 are lightweight thin plate members made of metal or synthetic resin, for example, having vibration damping performance and high durability and rigidity so as to reduce aerodynamic resistance and suppress generation of aerodynamic sound. It is streamlined.

The noise reflection preventing device 8 is a device that prevents noise generated from the current collector 5 when the vehicle 4 travels from being reflected by one of the sound insulating plates 6 and 7 on both sides of the current collector 5. . For example, as shown in FIG. 1, when the vehicle 4 is traveling in the A direction on the down line 2A, the noise reflection preventing device 8 is located along the line opposite to the line W ₁ where noise countermeasures are important. The sound insulation plate 7 on the W ₂ side is housed in the vehicle body 4a, and the sound insulation plate 7 prevents the collection system noise from being reflected on the W ₁ side along the line. As shown in FIG. 1, the noise reflection preventing apparatus 8 includes drive units 9 and 10 and a control unit 11.

  The drive unit 9 is a device that drives the sound insulation plate 6 so that it can be moved up and down, and the drive unit 10 is a device that drives the sound insulation plate 7 so that it can move up and down. The drive units 9 and 10 are, for example, a hydraulic or pneumatic cylinder that generates a driving force for driving the sound insulating plates 6 and 7 and a hydraulic or pneumatic unit that operates them. The drive units 9 and 10 are, for example, an electric motor that rotates and drives, an electric circuit that operates the electric motor, and a rack and pinion mechanism that converts the rotational motion of the motor into linear motion. The drive parts 9 and 10 are installed in the roof upper surface 4b or the vehicle body 4a.

  The control unit 11 is a device that drives and controls the drive units 9 and 10. When the noise countermeasure is more important on either the left or right side of the current collector 5 than on the other side, the control unit 11 has the sound insulating plate 6 or the sound insulation on one side where the noise countermeasure is more important. The drive units 9 and 10 are driven and controlled so that the plate 7 emerges from the vehicle body 4a and the sound insulation plate 6 or the sound insulation plate 7 on the other side is stored in the vehicle body 4a. For example, as shown in FIG. 1A, when the vehicle 4 travels in the down line 2A in the A direction, the control unit 11 has the sound insulation plate 6 on the left in the traveling direction and the sound insulation plate 7 on the right in the traveling direction is stored. The drive units 9 and 10 are driven and controlled as described above. On the other hand, as shown in FIG. 1 (B), when the vehicle 4 turns back at the terminal station and travels in the up line 2B in the direction B, the control unit 11 has the sound insulation board 7 on the left side in the traveling direction and appears on the right side in the traveling direction. The drive units 9 and 10 are driven and controlled so that the sound insulating plate 6 is stored. The control unit 11 outputs an appearance operation signal to the hydraulic or pneumatic unit or the electric circuit of the drive units 9 and 10 when the sound insulation plates 6 and 7 are caused to appear, and stores operation signals when the sound insulation plates 6 and 7 are subjected to the storage operation. Is output to the hydraulic or pneumatic unit or electric circuit of the drive units 9 and 10.

Next, a vehicle noise reflection preventing method according to the first embodiment of the present invention will be described.
As shown in FIG. 1A, when the vehicle 4 travels on the down line 2A, the sound insulation plate 6 appears and the sound insulation plate 7 is stored. Generally, when the vehicle 4 travels on the down line 2A, the line W ₁ side near the down line 2A has a higher priority for noise countermeasures than the line W ₂ side far from the down line 2A, and noise countermeasures are regarded as important. For this reason, when the sound insulating plate 7 is stored, the sound insulating plate 7 does not reflect the current collecting system noise to the line W ₁ side, and the noise on the line W ₁ side is reduced. Although the sound insulating plate 7 is stored collector system noise is radiated wayside W ₂ side, less affected by the noise applied to the wayside W ₂ side wayside W ₂ are separated from the downstream line 2A than wayside W ₁ .

Next, as shown in FIG. 1 (B), when the vehicle 4 traveling on the down line 2A turns back at the terminal station and travels on the up line 2B, the sound insulation plate 6 is stored and the sound insulation plate 7 appears. Generally, when the vehicle 4 travels on the up line 2B, the line W ₂ side near the up line 2B has a higher priority for noise countermeasures than the line W ₁ side far from the up line 2B, and noise countermeasures are regarded as important. For this reason, when the sound insulating plate 6 is stored, the sound insulating plate 6 does not reflect the current collecting system noise to the line W ₂ side, and the noise on the line W ₂ side is reduced. When sound insulating plate 6 is stored but collector system noise is emitted wayside W ₁ side, little influence wayside W ₁ is due to the noise applied to the wayside W ₁ side and away from the up line 2B than wayside W ₂ .

The vehicle noise reflection preventing apparatus and the noise reflection preventing method according to the first embodiment of the present invention have the following effects.
(1) In the first embodiment, when noise countermeasures are more important on either the left or right side of the current collector 5 than on the other side, one side where noise countermeasures are more important A drive unit 9 for driving the sound insulation plates 6 and 7 so that the sound insulation plates 6 and 7 can be moved up and down so that the sound insulation plate 6 or the sound insulation plate 7 emerges from the vehicle body 4a and the sound insulation plate 6 or the sound insulation plate 7 on the other side is stored in the vehicle body 4a; 10 is driven and controlled by the control unit 11. Therefore, it is possible to collector system noise reflected by the sound insulating plates 6 and 7 is prevented from radiating wayside W _1, W ₂ side, to reduce the noise of the wayside W _1, W ₂ side.

(2) In the first embodiment, when the vehicle 4 passes the down line 2A on the left side, the sound insulating plate 6 on the left in the traveling direction appears and the sound insulating plate 7 on the right in the traveling direction is stored. , 10 is controlled by the control unit 11. Therefore, it is possible to prevent the collector system noise is reflected to the wayside W ₁ side. In the first embodiment, when the vehicle 4 passes the up line 2B on the left side, the sound insulation plate 7 on the left side in the traveling direction appears and the sound insulation plate 6 on the right side in the traveling direction is stored. 10 is driven and controlled by the control unit 11. For this reason, it is possible to prevent the current collecting system noise from being reflected on the line W ₂ side.

(Second Embodiment)
FIG. 2 is a block diagram schematically showing a vehicle noise reflection preventing apparatus according to a second embodiment of the present invention, and FIG. 2 (A) shows a state in which the vehicle is traveling on a down line. (B) shows a state where the vehicle is traveling on the up line. In the following, the same parts as those shown in FIG. 1 are denoted by the same reference numerals and detailed description thereof is omitted.
The noise reflection preventing apparatus 8 shown in FIG. 2 includes drive units 9 and 10, a control unit 11, a speed detection unit 12, a route information storage unit 13, a current position detection unit 14, and the like. When the priority of noise countermeasures along the lines W ₁ and W ₂ along which the vehicle 4 passes is switched between the one side and the other side, the controller 11 causes the sound insulation plates 6 and 7 to move in and out. The drive units 9 and 10 are driven and controlled.

The speed detection unit 12 is a device that detects the speed of the vehicle 4, and is a speed generator that outputs a distance pulse signal generated according to the rotation speed of the wheel of the vehicle 4 as speed information. The route information storage unit 13 is a device that stores various information related to the noise reflection preventing device 8, and stores information related to the priority of noise countermeasures along the lines W ₁ and W ₂ of all sections along which the vehicle 4 travels as route information. RAM to do. Route information storage unit 13, for example, as shown in FIG. 2 (A), the downstream line 2A in a case where the vehicle 4 is traveling, than near wayside W ₁ side to the downstream line 2A from the downline 2A when more distant wayside W ₂ side special circumstances, such as high noise countermeasure priority noise control is important, and stores a distance of the position and the section of the line of the section as the route information ing. The route information storage unit 13 writes and stores the changed route information when the priority of noise countermeasures along the lines W ₁ and W ₂ is changed. The current position detection unit 14 is a device that detects the current position of the vehicle 4. The current position detection unit 14 is installed on an ATS vehicle installed on the vehicle 4 side to transmit / receive information to / from an ATS ground unit of an automatic train stop device (ATS) installed at a specific point on the track 2 side. And an ATS receiver that receives a signal from the child of the ATS vehicle and outputs current position information (absolute position information) to the control unit 11.

Next, a vehicle noise reflection preventing method according to a second embodiment of the present invention will be described.
For example, if the residence is large residential less wayside W ₂ side to wayside W ₁ side, to both the wayside W _1, W ₂ side there is soundproof structures such as sound barriers but wayside W ₂ side There are cases where there is a dwelling higher than this soundproof structure. In such a case, unlike a typical situation, the priority is high noise measures of noise control by special circumstances is better trackside W ₂ side than the wayside W ₁ side is important. As shown in FIG. 1A, when the vehicle 4 travels on the down line 2A, the speed information detected by the speed detection unit 12, the route information stored in the route information storage unit 13, and the current position detection unit 14 are detected. Based on the current position information, the control unit 11 determines whether it is necessary to reverse the appearance of the sound insulation plates 6 and 7. When the control unit 11 that it is necessary to reverse the infested operation of the sound insulating plates 6 and 7 is determined is by appearance of noise insulating plates 7 from the vehicle body 4a stores the sound insulating plate 6 to the body 4a, wayside W ₂ side Noise is reduced.

The vehicle noise reflection preventing apparatus and the noise reflection preventing method thereof according to the second embodiment of the present invention have the following effects in addition to the effects of the first embodiment.
In the second embodiment, when the priority of the noise countermeasures along the lines W ₁ and W ₂ along which the vehicle 4 passes is switched between one side and the other side, the appearance and appearance of the sound insulation plates 6 and 7 are reversed. Thus, the control unit 11 drives and controls the drive units 9 and 10. For this reason, when the priority of the noise countermeasures along the lines W ₁ and W ₂ is reversed due to special circumstances different from the normal case, the noise can be reduced according to the noise countermeasure circumstances.

(Other embodiments)
The present invention is not limited to the embodiment described above, and various modifications or changes can be made as described below, and these are also within the scope of the present invention.
(1) In this embodiment, the Tohoku Shinkansen has been described as an example, but the present invention can also be applied to the Tokaido Shinkansen and the like. In this embodiment, the case where the track 2 is a double line has been described as an example, but the present invention can also be applied to the case where the track 2 is a double line.

(2) In this embodiment, the case where the vehicle 4 is on the left side is described as an example. However, the present invention can also be applied to the case where the vehicle 4 is on the right side. For example, when the vehicle 4 shown in FIG. 1A passes the double line on the right side, the drive units 9 and 10 are controlled so that the sound insulation plate 7 on the right side in the traveling direction appears and the sound insulation plate 6 on the left side in the traveling direction is stored. The unit 11 can control the operation. In this embodiment, the structure in which the plate-like sound insulating plates 6 and 7 can be moved up and down linearly has been described as an example. However, the present invention is not limited to such a structure. For example, the sound insulating plates 6 and 7 can be configured to be foldable, or can be configured to have a shutter structure that can be raised and lowered along a guide rail.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram which shows roughly the noise reflection prevention apparatus of the vehicle which concerns on 1st Embodiment of this invention, (A) shows the state which the vehicle is drive | working the down line, (B) is a vehicle on the up line. The state where is running. It is a block diagram which shows roughly the noise reflection prevention apparatus of the vehicle which concerns on 2nd Embodiment of this invention, (A) shows the state which the vehicle is running on the down line, (B) is the vehicle on the up line. The state where is running. It is a block diagram which shows roughly the driving | running | working state of a vehicle provided with the conventional sound insulation board, (A) shows the state which the vehicle is drive | working the down line, (B) is the vehicle drive | working the up line. Indicates the state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Subbase 2 Track 2A Down line 2B Up line 2a Rail 3 Overhead line 3a Trolley line 4 Vehicle 4a Car body 5 Current collecting device 5a Sliding plate 6, 7 Sound insulation plate 8 Noise reflection prevention device 9, 10 Drive unit 11 Control unit 12 Speed detection unit 13 Route Information Storage Unit 14 Current Position Detection Unit Lines W ₁ and W ₂

Claims (4)

A vehicle noise reflection preventing device for preventing noise generated from the current collector when the vehicle travels from being reflected by one of the sound insulation plates on both sides of the current collector,
A first drive unit for driving the sound insulation plate on one side so as to freely move in and out;
A second drive unit for driving the sound insulation plate on the other side so as to freely move in and out;
A control unit for driving and controlling the first and second drive units,
The control unit controls the first and second drive units so that the sound insulation board on the left side in the traveling direction appears and the sound insulation board on the right side in the traveling direction is stored when the vehicle passes the double line on the left side. Driving control is performed, and when the vehicle passes the double line on the right side, the first and second drive units are driven so that the sound insulation board on the right in the traveling direction appears and the sound insulation board on the left in the traveling direction is stored. Controlling,
Vehicle noise reflection preventing apparatus characterized by the above. In the vehicle noise reflection preventing apparatus according to claim 1,
When the vehicle is passing the double line on the left side , the control unit reverses the sounding operation of the sound insulation plate when the noise on the right side along the traveling direction is reduced more than the noise on the right side along the traveling direction. The first and second drive units are driven and controlled so that when the vehicle is passing a double line on the right side, the noise on the left side of the traveling direction is less than the noise on the right side of the traveling direction. When reducing , driving and controlling the first and second drive units so that the sounding operation of the sound insulation plate is reversed,
Vehicle noise reflection preventing apparatus characterized by the above. A vehicle noise reflection preventing method for preventing noise generated from a current collector when a vehicle travels from being reflected by one of sound insulation plates on both sides of the current collector,
When the vehicle passes the double line on the left side, the sound insulation board on the left side in the traveling direction appears to store the sound insulation board on the right side in the traveling direction, and when the vehicle passes the double line on the right side, the sound insulation board on the right side in the traveling direction appears. Storing the sound insulation board on the left in the direction of travel;
A method for preventing vehicle noise reflection. The vehicle noise reflection preventing method according to claim 3 ,
When the vehicle is passing the double track on the left side, when the noise on the right side of the traveling direction is reduced more than the noise on the left side of the traveling direction, the operation of the sound insulation board is reversed and the vehicle is double tracked. When reducing the noise on the side along the left side of the traveling direction than the noise along the side along the right side when traveling on the right side , reverse the appearance of the sound insulation board,
A method for preventing vehicle noise reflection.

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