WO2010070741A1 - Endless chain and ballast removal device having same - Google Patents

Endless chain and ballast removal device having same Download PDF

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Publication number
WO2010070741A1
WO2010070741A1 PCT/JP2008/072923 JP2008072923W WO2010070741A1 WO 2010070741 A1 WO2010070741 A1 WO 2010070741A1 JP 2008072923 W JP2008072923 W JP 2008072923W WO 2010070741 A1 WO2010070741 A1 WO 2010070741A1
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WO
WIPO (PCT)
Prior art keywords
ballast
endless chain
support member
link
portions
Prior art date
Application number
PCT/JP2008/072923
Other languages
French (fr)
Japanese (ja)
Inventor
智行 尾島
Original Assignee
株式会社水谷組
マルマテクニカ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社水谷組, マルマテクニカ株式会社 filed Critical 株式会社水谷組
Priority to JP2010542777A priority Critical patent/JP5238040B2/en
Priority to ATA9474/2008A priority patent/AT512242B1/en
Priority to PCT/JP2008/072923 priority patent/WO2010070741A1/en
Publication of WO2010070741A1 publication Critical patent/WO2010070741A1/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B27/00Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/04Removing the ballast; Machines therefor, whether or not additionally adapted for taking-up ballast
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B27/00Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/06Renewing or cleaning the ballast in situ, with or without concurrent work on the track
    • E01B27/10Renewing or cleaning the ballast in situ, with or without concurrent work on the track without taking-up track
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16GBELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G13/00Chains
    • F16G13/18Chains having special overall characteristics

Definitions

  • the present invention relates to an endless chain used for removing a ballast, which is a roadbed made of a large number of gravel and crushed stone, which is laid on a roadbed under a sleeper that supports rails of a railroad track, and a ballast removal provided with the endless chain Relates to the device.
  • an apparatus described in Patent Document 1 is known as an apparatus for removing a ballast scheduled to be replaced on a railway track.
  • This conventional apparatus includes a pair of linear portions and a supporting member having a curved portion between the linear portions, a pair of sprockets rotatably supported by the linear portions of the supporting member, and both sprockets. And an endless chain that is supported by the support member and extends along both straight and curved portions of the support member.
  • the endless chain is pivotably connected to each other around a swing axis and is extended around another swing axis perpendicular to the swing axis so that the endless chain can extend along the curved portion of the support member.
  • a plurality of link bases that are swingably connected to each other, and scraping off the bit and the ballast that has been broken, which are supported by each link base and project around the endless chain, And a scraping plate.
  • the conventional apparatus further includes a hood that is supported by the support member and surrounds a part of the endless chain that extends along one of the straight portions and the curved portion of the support member.
  • the endless chain rotates around both sprockets by driving one of the two sprockets, and the bit and scraper supported by each link base of the endless chain are connected to each sprocket. It travels in the rotation direction of the endless chain along the circumferential surface and each straight line portion and curved portion of the support member.
  • the broken ballast that is, individual gravel or crushed stone, is scraped by the scraping plate and is taken in the rotational direction of the endless chain.
  • These ballasts are further fed into the hood by the scraping plate, transferred to the one sprocket through the hood, and then discharged from the hood to the outside. Thereby, the removal of the ballast from the railway track is performed.
  • a gap is provided between the link bases so that the two link bases adjacent to each other can swing around the other swing axis.
  • This gap allows the ballast to fit between the link bases during the ballast removal operation.
  • the ballast fitted in the gap causes the link bases to swing around the other swing axis for traveling along the curved portion of the support member, and the gap between the link bases gradually narrows. When it is pressed by both link bases, it is crushed and destroyed. However, this causes wear or damage to both link bases. This also causes the endless chain to vibrate, which is a cause of poor ballast conveyance in the hood.
  • An object of the present invention is to provide an endless chain capable of preventing ballast from entering between adjacent link bases and a ballast removing apparatus including the endless chain.
  • the invention according to claim 1 relates to an endless chain used for removing ballast on a railway track, and the endless chain is connected in series between a pair of linear portions and both linear portions when used. It is supported by a support member having a curved portion so as to extend along both the straight portions and the curved portion, and is wound around a pair of sprockets rotatably supported on both straight portions of the support member.
  • the endless chain is pivotably connected to each other around a swing axis and is extended around another swing axis perpendicular to the swing axis so that the endless chain can extend along the curved portion of the support member.
  • a plurality of link bases that are swingably connected to each other, a bit that is supported by each link base and protrudes around the endless chain, and a scrap for scraping off the ballast. And a catch plate.
  • a pair of adjacent link bases are provided with a set of overlapping portions facing the periphery of the endless chain that can overlap each other when the link bases are located at positions other than the periphery of each sprocket. It is characterized by.
  • the endless chain in use, is supported by the support member and wound around both sprockets, and is rotationally driven by receiving rotational power applied to one of the two sprockets.
  • the endless chain performs rotational movement along the peripheral surfaces of both sprockets and the linear portions and the curved portion of the support member, and the bit supported on each link base constituting the endless chain and
  • the scraping plate travels with each link base in the rotation direction of the endless chain.
  • the operation of removing the ballast from the railway track by using the endless chain is performed by pressing a bit protruding around the endless chain against the ballast of the railroad track that runs along one straight portion of the support member.
  • the scraping plate that travels along the one straight portion together with the bit scrapes off the individual gravel or crushed stone that is the collapsed ballast on other ballasts or roadbeds below these, and the support It is performed by conveying toward the curved portion of the member.
  • a pair of overlapping portions is provided on a pair of adjacent link bases constituting the endless chain.
  • the overlapping portions are arranged facing the periphery of the endless chain, and can overlap each other when both adjacent link bases are located at positions other than the periphery of each sprocket. Therefore, the gap between the adjacent link bases traveling on the one straight portion is closed by the overlapping portion, and the ball base is fitted into the gap and the link base is worn or damaged due to this. In addition, it is possible to avoid a ballast conveyance failure caused by the vibration of the endless chain.
  • both adjacent link bases swing around the swing axis when they move around each sprocket, and as a result, the overlapping area, which is the area of the overlapping portions of both overlapping portions, gradually decreases. Finally, a gap is formed between the two overlapping portions.
  • this gap serves as a ballast discharge space as follows. That is, the ballast having a relatively small particle diameter that may enter between the two overlapping portions or between the two link bases through the other portions during traveling in one linear portion of the support member, It can discharge
  • the invention described in claim 2 is characterized in that the bit is removably attached to the link base after the components of the invention described in claim 1 are provided.
  • the second aspect of the present invention it is possible to easily and quickly remove a bit and attach a new bit that may be worn or damaged by a collision with a ballast. Further, it is possible to easily load and replace a bit having sufficient strength or hardness to exert a breaking action on the ballast according to the hardness of the ballast.
  • the invention described in claim 3 relates to a ballast removing device for removing ballast on a railway track, and basically includes the endless chain described in claim 1.
  • the ballast removing device includes a support member having a pair of straight portions and a curved portion between both straight portions, and a pair of sprockets rotatably supported on both straight portions of the support member, and the endless chain is It is supported by the support member so as to be wound around both sprockets and to extend along both straight and curved portions of the support member.
  • the endless chain is slidably connected to each other around the swing axis, and can be extended along the curved portion of the support member.
  • a plurality of link bases that are swingably connected to each other around another swing axis that is orthogonal to each other, and a ballast of the railroad track that is supported by each link base and protrudes around the endless chain.
  • the periphery of the endless chain provided on a scraping plate for scraping off the bit and the ballast and a pair of link bases adjacent to each other and capable of overlapping each other when both link bases are located outside the periphery of each sprocket And a pair of overlapping portions facing each other.
  • the ballast removing device further includes a hood that is supported by the support member and surrounds a part of the endless chain that extends along one of the linear portions of the support member and the curved portion thereof.
  • a rotational motion around the two sprockets is generated in the endless chain.
  • a bit projecting around the endless chain that travels along the other straight portion (the straight portion not accommodated in the hood) of the support member in accordance with the rotational movement of the endless chain is used as a ballast for the railway track.
  • the ballast conveyed to the curved portion is propelled toward one of the brackets by the scraping plate in the hood that houses the curved portion and the one linear portion connected to the curved portion. Thereafter, the ballast from the track can be removed by discharging these ballasts from the open end provided in the hood to the outside and further conveying them with a belt conveyor as necessary.
  • the pair of adjacent link bases constituting the endless chain is provided with a set of overlapping portions that can be overlapped with each other when they are at positions other than the periphery of each sprocket. Therefore, it is avoided that the ballast is fitted between the adjacent link bases during the operation of removing the ballast, and that the link base is worn or damaged, and the ballast is not properly conveyed due to the vibration of the endless chain. can do.
  • Both adjacent link bases swing around the swing axis when they move around each sprocket, and as a result, the overlapping area, which is the area of the overlapping portions of both overlapping portions, gradually decreases.
  • a gap is formed between the two overlapping portions. However, this gap serves as a ballast discharge space as follows. That is, the ballast having a relatively small particle size that may enter between the two overlapping bases or between the two link bases during traveling in the linear portion of the support member is caused to pass through the gap by centrifugal force. It can be released from between both link bases.
  • the invention described in claim 4 comprises the component of the invention described in claim 3, and further includes a shaft rotatably supported by a curved portion of the support member via a bearing, and the shaft. And a plurality of guide members each having a roller that is fixed and is in contact with the link base at the curved portion of the support member and is capable of rolling.
  • the link base of the endless chain follows the curved portion of the support member via the roller of the guide member that rolls in contact with the curved portion of the support member. All the more accurate driving is guaranteed.
  • a roller that rolls in contact with the link base is rotatably supported on a shaft through a bearing fitted in a central hole provided in the roller, and the shaft is supported by the support member. It was fixed to the curved part.
  • the bearing since the bearing faces the specified space of the hood, the ballast pieces and powder conveyed in the specified space of the hood enter the inside of the bearing, and the bearing And the resulting rotation failure of the roller.
  • the roller of the guide member is fixed to the shaft, and the shaft is rotatably supported by the curved portion of the support member via the bearing. It is possible to dispose the roller behind the roller that does not face the specified space, thereby preventing a failure of the bearing due to the intrusion of ballast pieces and powder and a decrease in the guiding ability of the endless chain due to this. it can.
  • ballast removal apparatus of the state supported by the vehicle. It is a side view of the ballast removal apparatus of the state supported by the vehicle. It is a top view which fractures
  • FIGS. 1 and 2 there is shown a ballast removing device 1 according to the present invention disposed on a railroad track, and a vehicle 3 having a function for moving and operating the ballast removing device. .
  • the ballast removing device 1 is composed of a large number of gravel and crushed stones laid on a roadbed in order to disperse a load applied to a pair of rails 5 on a railroad track and a plurality of sleepers 7 that support the rails, reduce noise generation, and the like. Operated to remove ballast (not shown) for the purpose of replacement.
  • the vehicle 3 enables traveling on the rail 5 and a pair of crawlers 9 that enable entry into the railroad track, travel on the side of the track, and the like that are necessary for the operation of the ballast removing device 1.
  • a plurality of iron wheels 11 are provided.
  • the ballast removing device 1 is cantilevered on the vehicle 3 via a power mechanism 13 mounted on the vehicle 3. By operating the power mechanism 13, the ballast removing device 1 can be rotated or turned. By this rotation or turning operation, the ballast removing device 1 can be positioned at the work position (position shown in FIGS. 1 and 2), and can be retracted from the work position. As will be described later, the ballast removing apparatus 1 further has a function of conveying the ballast removed from the railroad track. On the other hand, the vehicle 3 receives a ballast from the ballast removing device 1, and is used to transfer the ballast to, for example, a waiting dump truck. And a sorting belt conveyor 17.
  • Reference numeral 19 denotes an operation room in which the driving device of the vehicle 3 and the operation device of the ballast removing device 1 are arranged.
  • the ballast removing apparatus 1 includes a support member 21, a pair of sprockets 23 rotatably supported on the support member, an endless chain 25 wound around both sprockets 23, A hood 27 (FIG. 4) is supported by the support member 21 and surrounds a part of the endless chain 25 extending along a part of the curved part 41 described later and the linear part 39 connected thereto.
  • the support member 21 is composed of an elongated frame 29 extending in a U-shape as a whole, one linear portion 37, a curved portion or curved portion 41, and another straight line connected in series with each other in the extending direction. Part 39. In contrast to the straight portions 37 and 39 extending straight, the curved portion 41 between the straight portions 37 and 39 extends to draw an arc.
  • the support member 21 that supports the endless chain 25, that is, the frame 29, is seen in FIG. 2 showing the state where the ballast removing device 1 is placed in the operating position, and one straight portion 37 is located above the roadbed of the railroad track. Thus, it extends horizontally so as to cross both rails 5 at a position below the sleepers 7.
  • the curved portion 41 connected to the straight portion 37 extends upward in the lateral space of the sleepers 7 and both rails 5. Further, the other one linear portion 39 connected to the curved portion 41 extends obliquely upward in the upper space of both rails 5 relative to the one linear portion 37.
  • the frame 29 includes a pair of parallel side portions 31 that are spaced from each other with respect to the paper surface direction of FIG. 2, an upper portion 32 and a lower portion 33 that are respectively positioned above and below the side portions 31, One end 35.
  • the end portion 35 is located at the tip of one linear portion 37.
  • the end portion 35 is received so as to be movable in the longitudinal direction of the space in a space defined by the both side portions 31 and the upper and lower portions 32 and 33 and to be fixed to the both side portions 31 and the lower portion 33.
  • a base portion 35a, and a pair of plate-like bearing portions 35b that are connected to the base portion and project outside the space.
  • the upper portion 32 of the frame 29 and one bearing portion 35 b at the end portion 35 are removed.
  • One sprocket 23 is disposed between both bearing portions 35 b of the end portion 35 of the frame 29.
  • the sprocket 23 is supported by both bearing portions 35b so as to be rotatable around an axis perpendicular to them.
  • the other sprocket 23 is rotatably supported at the end of the other one linear portion 39, and the sprocket is connected to a drive source 43 such as a hydraulic motor for providing rotational power thereto. ing.
  • the drive source 43 is disposed on the hood 27 and supported by the hood 27.
  • the upper portion 32 of the frame 29 is composed of a plurality of plate bodies arranged side by side on both side portions 31 and fixed by, for example, a plurality of bolts (not shown). These plates are arranged over a part of the frame 29 not covered with the hood 27, that is, a range from one straight part 37 to a part of the curved part 41. Regarding the range from the remaining portion of the curved portion 41 to the other one straight portion 39, the inner wall surface of the hood 27 covering this range plays the role of the upper portion 32. Further, the lower portion 33 of the frame 29 is connected to both side portions 31 and is formed of a single plate that is integrated therewith. This plate extends over both the outside and the inside of the hood 27.
  • the upper and lower parts 32 and 33 respectively cover the side part 31 and the end part 35 at the upper side and the lower side thereof, and project to the sides.
  • the inner wall surfaces of the upper and lower parts 32 and 33 and the hood 27 receive the endless chain 25 between them, and serve to support the endless chain 25 around the both side parts 31, and also serve as travel guide means for the endless chain 25. Function.
  • the endless chain 25 includes a plurality of link bases 45 connected to each other so as to be able to swing around a swing axis and another swing axis perpendicular thereto, and a bit 47 supported on each link base 45 and A scraping plate 49.
  • each link base 45 has a cross-sectional shape that has a ⁇ -shape as a whole, a substrate portion 51 that has a rectangular shape as a whole, and a pair of plate-like plates that are orthogonal to the substrate portion and are parallel to each other. It consists of a flange portion 53.
  • the substrate portion 51 defines the outer surface of the endless chain 25, that is, the side surface facing the outer side O of the ring defined by the endless chain 25. Further, the free end surfaces of both flange portions 53 define the inner side surface of the endless chain 25, that is, the side surface facing the inner side I of the ring.
  • Each pair of link bases (adjacent link bases) 45 adjacent to each other includes a joint link 55 that is a connecting member, and the joint link and both adjacent link bases 45 so as to be swingable around the swing axis.
  • a joint link 55 that is a connecting member
  • the joint link and both adjacent link bases 45 so as to be swingable around the swing axis.
  • Each pin 57 defines the swing axis.
  • the joint link 55 is composed of a pair of comb-like block bodies 59 that mesh with each other so that both adjacent link bases 45 can swing around the other swing axis.
  • Both block bodies 59 are connected to each other by pins 61 that pass through these interdigitated comb-like portions.
  • the pin 61 defines the other swing axis.
  • the pin 61 of illustration has a head part and the axial part connected to this (not shown).
  • One of the block bodies 59 is provided with a hollow receiving portion 63 that allows only the shaft portion of the pin 61 to be inserted and can receive the head portion of the pin 61.
  • the head of the pin 61 is covered with a lid member 64 that is screwed into the receiving portion 63.
  • the two adjacent link bases 45 are arranged with a slight gap S described later between them.
  • the endless chain 25 wound around both the sprockets 23 is held between the upper and lower parts 32 and 33 of the frame 29 at both flange parts 53 of the link base 45. It is held between the inner wall surfaces and faces both side portions 31 of the frame 29 at the free ends of both flange portions 53 of the link base 45.
  • each side portion 31 of the frame 29 is used to reduce wear caused by contact between both flange portions 53 of the link base 45 in the endless chain 25 and each side portion 31 in the frame 29. It is covered with the wear plate 66 attached to.
  • the rotational power of the other sprocket 23 is such that the teeth of the sprocket bite into and engage with a pair of joint links 55 in each link base 45, via one of the joint links 55. Is transmitted to.
  • the endless chain 25 supported by the frame 29 that is the support member 21 extends along both the straight portions 37 and 39 of the frame 29 and the curved portion 41 (FIG. 2) connected to the straight portions 37 and 39. It is growing. Both adjacent link bases 45 in the endless chain 25 swing around a pin 57 that defines the swing axis when they travel around each sprocket 23. At this time, the flange portions 53 of both link bases 45 that are in a state of being opposed to each other with respect to the traveling direction of the endless chain 25 are changed to an angled state. Further, when both the link bases 45 travel along the curved portion 41 of the frame 29, the link bases 45 swing around the pin 61 that defines the other swing axis. At this time, the substrate portions 51 of both link bases 45 located on the same plane are changed into an angled state.
  • the bit 47 and the scraping plate 49 supported by each link base 45 extend vertically from the base plate portion 51 of each link base 45 toward the outer side O of the ring, and thereby, around the endless chain 25. It protrudes.
  • the bit 47 is fixed to the substrate portion 51 of the link base 45 by, for example, welding, or is inserted into a holder 65 that is fixed to the substrate portion 51 and can receive the bit 47 as shown in FIG. Fixed. According to the example shown in FIG. 4, when the bit 47 is worn, damaged, or the like, it is possible to replace only the bit 47 instead of replacing the entire link base 45. In addition, it is possible to easily load and replace a bit having a strength or hardness that can correspond to the hardness of the ballast to be broken.
  • the hood 27 has an inner wall surface and a link base 45 so that the ballast pushed into the hood 27 does not slide down in the hood 27 and can be entrained by the scraping plate 49 in the hood 27.
  • An interval between the scraping plate 49 is set.
  • the hood 27 has a flat rectangular cross-sectional shape as a whole, and a pair of opposing inner wall surfaces partially form an arc shape.
  • the ballast is conveyed toward the sprocket 23 at the upper position by a scraping plate 49 that travels in the hood 27.
  • a hopper 67 for discharging the ballast conveyed here to the outside lower side of the hood 27 is provided at the upper open end of the hood 27.
  • the ballast discharged from the hopper 67 is dropped onto the belt conveyor 15 which is moved and arranged below the hopper 67 and is transported to a predetermined place by the belt conveyor 15.
  • the two adjacent link bases 45 are connected to each other at an interval in order to ensure their swinging motion, and a gap S (FIGS. 4 and 6) exists between them.
  • the two adjacent link bases 45 face the periphery of the endless chain 25, that is, the outer side O of the ring.
  • a set of overlapping portions 69 and 71 is provided.
  • the two overlapping portions 69 and 71 can overlap each other when both adjacent link bases 45 are located outside the periphery of each sprocket 23, that is, at positions other than the respective end portions of the support member 21,
  • the gap S between the two adjacent link bases 45 is substantially closed so that the ballast does not enter into the gap S due to the overlapping of the 71.
  • the pair of overlapping portions 69 and 71 are provided at opposite end portions of the base plate portion 51 in both adjacent link bases 45, that is, both end portions in the traveling direction of the link base 45, and face the periphery of the endless chain 25.
  • one overlapping portion 69 has a bowl shape, and the tip portion extends beyond the gap S to a position that covers the other overlapping portion 71.
  • the other overlapping portion 71 has a flat surface and is covered with the tip portion of the bowl-shaped overlapping portion 69 with a space between the tip portion.
  • the mutual interval between the tip portion of the bowl-shaped overlapping portion 69 and the other overlapping portion 71 is determined by taking into consideration the size of gravel and crushed stone constituting the ballast to be removed.
  • Each of the overlapping portions 69 and 71 is provided with a semicircular cutout 75 that allows the head receiving portion 63 of the pin 61 that defines the other swing axis for both adjacent link bases 45 to pass through. ing.
  • the facing surfaces of the overlapping portion 69 and the overlapping portion 71 facing each other in the direction from the inner side I to the outer side O of the endless chain 25, that is, the transverse direction of the endless chain 25, are parallel to each other.
  • a pair of tapered surfaces is used.
  • a hole 73 is provided in the substrate portion 51 of each link base 45.
  • the hole 73 discharges the ballast that may enter between the overlapping portions 69 and 71 of both adjacent link bases 45 or between the flange portions 53 of the link base 45 from other locations using the centrifugal force. It functions as a discharge outlet.
  • both adjacent link bases 45 swing around the pin 61 when passing through the curved portion 41 of the support member 21. Accordingly, both overlapping portions 69 and 71 swing toward each other on the inner peripheral side of the bending portion 41 and away from each other on the outer peripheral side.
  • one overlapping portion 71 is positioned on the outer peripheral side of the bending portion 41 so that the overlapping portions of the overlapping portions 69 and 71 on the outer peripheral side of the bending portion 41 can be maintained.
  • the width dimension of the portion 71a to be performed (direction related to the traveling direction of the link base 45) is set to be wider than the width dimension of the portion 71b located on the inner peripheral side.
  • both edges 77 and 79 of the base plate portion 51 of each link base 45 facing each other with respect to the rotation axis direction (vertical direction in the drawing) of the sprocket 23 have the same curvature. It is formed to draw an arc.
  • Each of these arcs is set to form part of two larger arcs extending along the curved portion 41 of the support member 21. For this reason, when a plurality of continuous link bases 45 travel along the curved portion 41 of the support member 21, these link bases 45 under the guiding action of the support member 21 extend along the curved portion 41. It swings around the pin 61.
  • the edges 77 of the two link bases 45 adjacent to each other are positioned on one of the large arcs, and the edges 79 are positioned on the other large arc, whereby the links in the curved portion 41 are linked. Smooth running of the base 45 is ensured. Since one edge 79 of the arc-shaped substrate portion 51 has a smaller contact area with the ballast or the roadbed during the ballast removing operation than when the edge 79 extends linearly, the resistance against running of the endless chain 25 is reduced. And the wear of the link base 45 is small.
  • a plurality of guides are provided along one arc of the curved portion 41 in order to make the travel of the link base 45 along the curved portion 41 of the support member 21 even smoother.
  • a member 81 is disposed (see FIG. 2).
  • the guide member 81 includes a shaft 83 and a coaxial roller 85 fixed to the end of the shaft.
  • Each guide member 81 has a circumferential surface of the roller 85 on one of the flange portions 53 of the link base 45 (upward in FIGS. 5 and 6), more specifically, on a curved surface 86 formed on one flange portion 53. It arrange
  • the roller 85 in contact with the curved surface 86 of one flange portion 53 is rotated by a frictional force generated when the link base 45 moves, and the arc-shaped edge 77 of the link base 45 concentrically or coaxially with the curved surface 86.
  • the curved portion 41 is aligned on the one arc.
  • the bearing 87 that rotatably supports the shaft 83 is behind the roller 85 and does not directly face the ballast that is transported in the hood 27, so that it occurs with the transport of the ballast. It is possible to prevent the fine fragments and dust from entering the inside of the bearing 87, between the outer race 89 and the inner race 91 in the illustrated example, and causing the bearing 87 to malfunction. As a result, it is possible to prevent occurrence of vibration of the endless chain 25 that impairs the ballast conveying efficiency due to the poor rotation of the roller 85 and the insufficient guide action with respect to the link base 45 associated therewith.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Mechanical Engineering (AREA)

Abstract

An endless chain (25) for ballast removal comprises a plurality of link bases (45) which are so connected to each other as to be capable of swinging around swing axes (57) and also so connected to each other as to be capable of swinging around the other swing axes (61) so that the bases can extend along the curved portions (41) of support members, bits (47) and ballast scraping plates (49) for pushing and collapsing ballast supported on each of the link bases. A set of overlapped parts (69, 71) capable of overlapping with each other for closing the gap between the adjacent link bases are provided on these link bases. These overlapped parts can prevent the ballast from intruding between the both link bases.

Description

無端チェーン及びこれを備えるバラスト除去装置Endless chain and ballast removing apparatus having the same
 本発明は、鉄道線路のレールを支える枕木下の路盤上に敷かれた多数の砂利や砕石からなる道床であるバラストを交換すべくこれを除去するために用いられる無端チェーン及びこれを備えるバラスト除去装置に関する。 The present invention relates to an endless chain used for removing a ballast, which is a roadbed made of a large number of gravel and crushed stone, which is laid on a roadbed under a sleeper that supports rails of a railroad track, and a ballast removal provided with the endless chain Relates to the device.
 従来、鉄道線路における交換予定のバラストを除去するための装置として特許文献1に記載されたものが知られている。この従来の装置は、直列に連なる、一対の直線部及び両直線部間の湾曲部を有する支持部材と、該支持部材の両直線部にそれぞれ回転可能に支承された一対のスプロケットと、両スプロケットに巻き掛けられかつ前記支持部材に支持され該支持部材の両直線部及び曲線部に沿って伸びる無端チェーンとを備える。 Conventionally, an apparatus described in Patent Document 1 is known as an apparatus for removing a ballast scheduled to be replaced on a railway track. This conventional apparatus includes a pair of linear portions and a supporting member having a curved portion between the linear portions, a pair of sprockets rotatably supported by the linear portions of the supporting member, and both sprockets. And an endless chain that is supported by the support member and extends along both straight and curved portions of the support member.
 前記無端チェーンは、揺動軸線の周りに互いに揺動可能に連結されまた前記支持部材の湾曲部に沿っての伸長が可能であるように前記揺動軸線に直交する他の揺動軸線の周りに互いに揺動可能に連結された複数のリンクベースと、各リンクベースに支持され前記無端チェーンの周囲に突出する、前記鉄道線路のバラストを突き崩すためのビット及び突き崩されたバラストを掻き取るための掻き取り板とを有する。前記従来の装置は、さらに、前記支持部材に支持され、前記支持部材の両直線部の一方と湾曲部とに沿って伸びる前記無端チェーンの一部を取り巻くフードを備える。 The endless chain is pivotably connected to each other around a swing axis and is extended around another swing axis perpendicular to the swing axis so that the endless chain can extend along the curved portion of the support member. A plurality of link bases that are swingably connected to each other, and scraping off the bit and the ballast that has been broken, which are supported by each link base and project around the endless chain, And a scraping plate. The conventional apparatus further includes a hood that is supported by the support member and surrounds a part of the endless chain that extends along one of the straight portions and the curved portion of the support member.
 前記従来の装置によれば、両スプロケットの一方を駆動することにより前記無端チェーンは両スプロケットを巡る回転動作をし、前記無端チェーンの各リンクベースに支持されたビット及び掻き取り板が各スプロケットの周面及び前記支持部材の各直線部及び曲線部に沿って前記無端チェーンの回転方向へ走行する。走行状態にある前記ビットは、前記支持部材の他の一方の直線部において鉄道線路のバラストに押し付けられるとき、前記バラストに当たり、これを突き崩す作用をなす。突き崩されたバラスト、すなわち個々の砂利又は砕石は前記掻き取り板による掻き取り作用を受けて前記無端チェーンの回転方向に連行される。これらのバラストは、さらに、前記掻き取り板により前記フード内に送り込まれ、該フード内を前記一方のスプロケットに向けて移送され、その後前記フード内からその外部に放出される。これにより、鉄道線路からのバラストの除去が行われる。 According to the conventional apparatus, the endless chain rotates around both sprockets by driving one of the two sprockets, and the bit and scraper supported by each link base of the endless chain are connected to each sprocket. It travels in the rotation direction of the endless chain along the circumferential surface and each straight line portion and curved portion of the support member. When the bit in the running state is pressed against the ballast of the railroad track at the other one straight portion of the support member, it hits the ballast and acts to break it. The broken ballast, that is, individual gravel or crushed stone, is scraped by the scraping plate and is taken in the rotational direction of the endless chain. These ballasts are further fed into the hood by the scraping plate, transferred to the one sprocket through the hood, and then discharged from the hood to the outside. Thereby, the removal of the ballast from the railway track is performed.
 前記従来のバラスト除去装置にあっては、互いに隣接する両リンクベースが互いに前記他の揺動軸線の周りに揺動可能であるように、両リンクベース同士間に間隙が設けられているところ、この間隙は、バラストの除去作業中に両リンクベース間へのバラストの嵌まり込みを許す。前記間隙に嵌まり込んだバラストは、両リンクベースが前記支持部材の湾曲部に沿っての走行のために前記他の揺動軸線の周りに揺動し、両リンクベース間の間隙が次第に狭まるとき、両リンクベースの押圧力を受けて押し潰され、破壊される。しかし、これは両リンクベースに損耗又は損傷を生じさせる原因となる。また、これは、前記フード内におけるバラストの搬送不良を惹起する一因である前記無端チェーンの振動を生じさせる。
特開2002-30602号公報
In the conventional ballast removing device, a gap is provided between the link bases so that the two link bases adjacent to each other can swing around the other swing axis. This gap allows the ballast to fit between the link bases during the ballast removal operation. The ballast fitted in the gap causes the link bases to swing around the other swing axis for traveling along the curved portion of the support member, and the gap between the link bases gradually narrows. When it is pressed by both link bases, it is crushed and destroyed. However, this causes wear or damage to both link bases. This also causes the endless chain to vibrate, which is a cause of poor ballast conveyance in the hood.
JP 2002-30602 A
 本発明の目的は、隣接する両リンクベース間へのバラストの侵入を阻止可能である無端チェーン及びこれを備えるバラスト除去装置を提供することにある。 An object of the present invention is to provide an endless chain capable of preventing ballast from entering between adjacent link bases and a ballast removing apparatus including the endless chain.
(請求項1に記載の発明の特徴)
 請求項1に記載の発明は、鉄道線路のバラストを除去するために使用される無端チェーンに係り、該無端チェーンは、その使用の際、直列に連なる、一対の直線部及び両直線部間の湾曲部を有する支持部材にその両直線部及びその湾曲部に沿って伸びるように支持され、また、前記支持部材の両直線部にそれぞれ回転可能に支承された一対のスプロケットに巻き掛けられる。前記無端チェーンは、揺動軸線の周りに互いに揺動可能に連結されまた前記支持部材の湾曲部に沿っての伸長が可能であるように前記揺動軸線に直交する他の揺動軸線の周りに互いに揺動可能に連結された複数のリンクベースと、各リンクベースに支持され前記無端チェーンの周囲に突出する、前記鉄道線路のバラストを突き崩すためのビット及び前記バラストを掻き取るための掻き取り板とを有する。本発明は、互いに隣接する一対のリンクベースに、両リンクベースが各スプロケットの周囲以外の位置にあるときに互いに重合可能である、前記無端チェーンの周囲に面する一組の重合部が設けられていることを特徴とする。
(Characteristics of the invention described in claim 1)
The invention according to claim 1 relates to an endless chain used for removing ballast on a railway track, and the endless chain is connected in series between a pair of linear portions and both linear portions when used. It is supported by a support member having a curved portion so as to extend along both the straight portions and the curved portion, and is wound around a pair of sprockets rotatably supported on both straight portions of the support member. The endless chain is pivotably connected to each other around a swing axis and is extended around another swing axis perpendicular to the swing axis so that the endless chain can extend along the curved portion of the support member. A plurality of link bases that are swingably connected to each other, a bit that is supported by each link base and protrudes around the endless chain, and a scrap for scraping off the ballast. And a catch plate. According to the present invention, a pair of adjacent link bases are provided with a set of overlapping portions facing the periphery of the endless chain that can overlap each other when the link bases are located at positions other than the periphery of each sprocket. It is characterized by.
 請求項1に記載の発明によれば、前記無端チェーンは、その使用の際、前記支持部材に支持されかつ両スプロケットに巻き掛けられ、両スプロケットの一方に加えられる回転動力を受けて回転駆動される。これに伴って、前記無端チェーンは両スプロケットの周面と前記支持部材の各直線部及び湾曲部とに沿っての回転運動を行い、前記無端チェーンを構成する各リンクベースに支持されたビット及び掻き取り板は各リンクベースと共に前記無端チェーンの回転方向へ走行する。前記無端チェーンの使用による鉄道線路からのバラストの除去作業は、前記支持部材の一方の直線部に沿って走行する、前記無端チェーンの周囲に突出するビットを鉄道線路のバラストに押し付けてこれを突き崩し、前記ビットと共に前記一方の直線部を走行する前記掻き取り板が前記突き崩されたバラストである個々の砂利又は砕石をこれらの下方に存する他のバラスト上又は路盤上で掻き取り、前記支持部材の曲線部に向けて搬送することにより行われる。 According to the first aspect of the present invention, in use, the endless chain is supported by the support member and wound around both sprockets, and is rotationally driven by receiving rotational power applied to one of the two sprockets. The Along with this, the endless chain performs rotational movement along the peripheral surfaces of both sprockets and the linear portions and the curved portion of the support member, and the bit supported on each link base constituting the endless chain and The scraping plate travels with each link base in the rotation direction of the endless chain. The operation of removing the ballast from the railway track by using the endless chain is performed by pressing a bit protruding around the endless chain against the ballast of the railroad track that runs along one straight portion of the support member. The scraping plate that travels along the one straight portion together with the bit scrapes off the individual gravel or crushed stone that is the collapsed ballast on other ballasts or roadbeds below these, and the support It is performed by conveying toward the curved portion of the member.
 本発明にあっては、前記無端チェーンを構成する互いに隣接する一対のリンクベースに一組の重合部が設けられている。前記重合部は、前記無端チェーンの周囲に面して配置されており、両隣接リンクベースが各スプロケットの周囲以外の位置にあるときに互いに重なり合うことが可能とされている。このことから、前記一方の直線部を走行中の両隣接リンクベース間の間隙は前記重合部により閉ざされ、前記間隙へのバラストの嵌まり込み及びこれに伴って生じる前記リンクベースの損耗又は損傷並びに前記無端チェーンの振動に起因するバラストの搬送不良を回避することができる。なお、両隣接リンクベースはこれらが各スプロケットの周囲を移動するときに前記揺動軸線の周りに揺動し、これに伴って両重合部の相互に相対する部分の面積である重合面積が漸減し、最後に両重合部間に隙間が生じる。しかし、この隙間は次のようなバラストの放出空間として役立つ。すなわち、前記支持部材の一方の直線部における走行の間に両重合部相互間又は他の箇所を通して両リンクベース相互間に侵入することがある比較的粒径の小さいバラストは、遠心力により、前記隙間を通して両リンクベース相互間から放出することができる。 In the present invention, a pair of overlapping portions is provided on a pair of adjacent link bases constituting the endless chain. The overlapping portions are arranged facing the periphery of the endless chain, and can overlap each other when both adjacent link bases are located at positions other than the periphery of each sprocket. Therefore, the gap between the adjacent link bases traveling on the one straight portion is closed by the overlapping portion, and the ball base is fitted into the gap and the link base is worn or damaged due to this. In addition, it is possible to avoid a ballast conveyance failure caused by the vibration of the endless chain. Both adjacent link bases swing around the swing axis when they move around each sprocket, and as a result, the overlapping area, which is the area of the overlapping portions of both overlapping portions, gradually decreases. Finally, a gap is formed between the two overlapping portions. However, this gap serves as a ballast discharge space as follows. That is, the ballast having a relatively small particle diameter that may enter between the two overlapping portions or between the two link bases through the other portions during traveling in one linear portion of the support member, It can discharge | release from between both link bases through a clearance gap.
(請求項2に記載の発明の特徴)
 請求項2に記載の発明は、請求項1に記載の発明の構成要素を備えた上で、前記ビットが前記リンクベースに取り外し可能に取り付けられていることを特徴とする。
(Features of the invention described in claim 2)
The invention described in claim 2 is characterized in that the bit is removably attached to the link base after the components of the invention described in claim 1 are provided.
 請求項2に記載の発明によれば、バラストに対する衝突によって損耗又は損傷が生じることがあるビットの取り外し及び新たなビットの取り付けを簡単にまた短時間で行うことができる。また、バラストの硬さに応じてこれらに突き崩し作用を及ぼすのに十分な強度又は硬度を有するビットの装填及び交換を容易に行うことができる。 According to the second aspect of the present invention, it is possible to easily and quickly remove a bit and attach a new bit that may be worn or damaged by a collision with a ballast. Further, it is possible to easily load and replace a bit having sufficient strength or hardness to exert a breaking action on the ballast according to the hardness of the ballast.
(請求項3に記載の発明の特徴)
 請求項3に記載の発明は鉄道線路のバラストを除去するためのバラスト除去装置に係り、基本的に、請求項1に記載の無端チェーンを備えることを特徴とする。前記バラスト除去装置は、一対の直線部及び両直線部間の湾曲部を有する支持部材と、前記支持部材の両直線部に回転可能にそれぞれ支承された一対のスプロケットとを備え、前記無端チェーンは両スプロケットに巻き掛けられかつ前記支持部材の両直線部及び曲線部に沿って伸びるように前記支持部材に支持されている。前記無端チェーンは、請求項1における無端チェーンにおけると同様、揺動軸線の周りに互いに揺動可能に連結されまた前記支持部材の湾曲部に沿っての伸長が可能であるように前記揺動軸線に直交する他の揺動軸線の周りに互いに揺動可能に連結された複数のリンクベースと、各リンクベースに支持され前記無端チェーンの周囲に突出する、前記鉄道線路のバラストを突き崩すためのビット及び前記バラストを掻き取るための掻き取り板と、互いに隣接する一対のリンクベースに設けられ、両リンクベースが各スプロケットの周囲以外に位置するときに互いに重合可能である、前記無端チェーンの周囲に面する一組の重合部とを有する。前記バラスト除去装置は、さらに、前記支持部材に支持され前記支持部材の両直線部の一方とその湾曲部とに沿って伸びる前記無端チェーンの一部を取り巻くフードを備える。
(Characteristics of the invention described in claim 3)
The invention described in claim 3 relates to a ballast removing device for removing ballast on a railway track, and basically includes the endless chain described in claim 1. The ballast removing device includes a support member having a pair of straight portions and a curved portion between both straight portions, and a pair of sprockets rotatably supported on both straight portions of the support member, and the endless chain is It is supported by the support member so as to be wound around both sprockets and to extend along both straight and curved portions of the support member. As in the endless chain in claim 1, the endless chain is slidably connected to each other around the swing axis, and can be extended along the curved portion of the support member. A plurality of link bases that are swingably connected to each other around another swing axis that is orthogonal to each other, and a ballast of the railroad track that is supported by each link base and protrudes around the endless chain. The periphery of the endless chain provided on a scraping plate for scraping off the bit and the ballast and a pair of link bases adjacent to each other and capable of overlapping each other when both link bases are located outside the periphery of each sprocket And a pair of overlapping portions facing each other. The ballast removing device further includes a hood that is supported by the support member and surrounds a part of the endless chain that extends along one of the linear portions of the support member and the curved portion thereof.
 請求項3に記載の発明によれば、前記バラスト除去装置を稼動させるに際し、両スプロケットの一方を回転駆動すると、前記無端チェーンに両スプロケットを巡る回転運動が生じる。前記無端チェーンの回転運動に伴って前記支持部材の他の一方の直線部(前記フードに収容されていない直線部)に沿って走行する前記無端チェーンの周囲に突出するビットを鉄道線路のバラストに押し付けると、これらが前記バラストに当たって該バラストが突き崩され、前記突き崩されたバラストはその下方に存する他のバラスト上又は路盤上において走行中の前記掻き取り板に掻き取られ、前記支持部材の曲線部に向けて搬送される。前記曲線部に搬送されたバラストは、前記曲線部及びこれに連なる前記一方の直線部を収容するフード内を前記掻き取り板により前記両ブラケットの一方に向けて推進される。その後、これらのバラストを前記フードに設けられる開放端からその外部に放出し、さらにこれらを必要に応じてさらにベルトコンベヤで搬送することにより、前記線路からのバラストの除去作業を行うことができる。 According to the third aspect of the present invention, when one of the two sprockets is rotationally driven when the ballast removing device is operated, a rotational motion around the two sprockets is generated in the endless chain. A bit projecting around the endless chain that travels along the other straight portion (the straight portion not accommodated in the hood) of the support member in accordance with the rotational movement of the endless chain is used as a ballast for the railway track. When they are pressed, they hit the ballast, and the ballast is collapsed. It is conveyed toward the curved part. The ballast conveyed to the curved portion is propelled toward one of the brackets by the scraping plate in the hood that houses the curved portion and the one linear portion connected to the curved portion. Thereafter, the ballast from the track can be removed by discharging these ballasts from the open end provided in the hood to the outside and further conveying them with a belt conveyor as necessary.
 本発明にあっては、前記無端チェーンを構成する互いに隣接する一対のリンクベースに、これらが各スプロケットの周囲以外の位置にあるときに互いに重合可能である一組の重合部が設けられていることから、前記バラストの除去作業中における両隣接リンクベース間へのバラストの嵌まり込み及びこれに伴って生じる前記リンクベースの損耗又は損傷並びに前記無端チェーンの振動に起因するバラストの搬送不良を回避することができる。両隣接リンクベースはこれらが各スプロケットの周囲を移動するときに前記揺動軸線の周りに揺動し、これに伴って両重合部の相互に相対する部分の面積である重合面積が漸減し、両重合部間に隙間が生じる。しかし、この隙間は次のようなバラストの放出空間として役立つ。すなわち、前記支持部材の直線部における走行の間に両重合部相互間又は他の箇所を通して両リンクベース相互間に侵入することがある比較的粒径の小さいバラストは、遠心力により、前記隙間を通して両リンクベース相互間から放出することができる。 In the present invention, the pair of adjacent link bases constituting the endless chain is provided with a set of overlapping portions that can be overlapped with each other when they are at positions other than the periphery of each sprocket. Therefore, it is avoided that the ballast is fitted between the adjacent link bases during the operation of removing the ballast, and that the link base is worn or damaged, and the ballast is not properly conveyed due to the vibration of the endless chain. can do. Both adjacent link bases swing around the swing axis when they move around each sprocket, and as a result, the overlapping area, which is the area of the overlapping portions of both overlapping portions, gradually decreases. A gap is formed between the two overlapping portions. However, this gap serves as a ballast discharge space as follows. That is, the ballast having a relatively small particle size that may enter between the two overlapping bases or between the two link bases during traveling in the linear portion of the support member is caused to pass through the gap by centrifugal force. It can be released from between both link bases.
(請求項4に記載の発明の特徴)
 請求項4に記載の発明は、請求項3に記載の発明の構成要素を備えた上で、さらに、前記支持部材の湾曲部に軸受を介して回転可能に支承された軸と、該軸に固定され前記支持部材の湾曲部において前記リンクベースに接しかつ転動可能であるローラとを備える複数の案内部材とを含むことを特徴とする。
(Characteristic of the invention described in claim 4)
The invention described in claim 4 comprises the component of the invention described in claim 3, and further includes a shaft rotatably supported by a curved portion of the support member via a bearing, and the shaft. And a plurality of guide members each having a roller that is fixed and is in contact with the link base at the curved portion of the support member and is capable of rolling.
 請求項4に記載の発明によれば、前記無端チェーンのリンクベースは、前記支持部材の湾曲部においてこれに接して転動する前記案内部材のローラを介して、前記支持部材の湾曲部に沿ってのより正確な走行を保障される。従来の案内部材にあっては、前記リンクベースに接して転動するローラが該ローラに設けられた中心孔に嵌め込まれた軸受を介して軸に回転可能に支承され、前記軸が前記支持部材の湾曲部に固定されていた。従来の案内部材にあっては、その軸受が前記フードの規定空間に面しているため、前記フードの規定空間内を搬送されるバラストの小片や粉末が前記軸受の内部に侵入し、該軸受の故障及びこれに伴う前記ローラの回転不良を招来していた。これに対し、本発明にあっては、案内部材のローラが軸に固定され、該軸が軸受を介して前記支持部材の湾曲部に回転可能に支持されていることから、前記軸受を前記フードの規定空間に面しない前記ローラの背後に配置することができ、これにより、従来におけるバラスト小片や粉末の侵入に伴う前記軸受の故障及びこれによる前記無端チェーンの案内能力の低下を防止することができる。 According to a fourth aspect of the present invention, the link base of the endless chain follows the curved portion of the support member via the roller of the guide member that rolls in contact with the curved portion of the support member. All the more accurate driving is guaranteed. In the conventional guide member, a roller that rolls in contact with the link base is rotatably supported on a shaft through a bearing fitted in a central hole provided in the roller, and the shaft is supported by the support member. It was fixed to the curved part. In the conventional guide member, since the bearing faces the specified space of the hood, the ballast pieces and powder conveyed in the specified space of the hood enter the inside of the bearing, and the bearing And the resulting rotation failure of the roller. On the other hand, in the present invention, the roller of the guide member is fixed to the shaft, and the shaft is rotatably supported by the curved portion of the support member via the bearing. It is possible to dispose the roller behind the roller that does not face the specified space, thereby preventing a failure of the bearing due to the intrusion of ballast pieces and powder and a decrease in the guiding ability of the endless chain due to this. it can.
車両に支持された状態のバラスト除去装置の正面図である。It is a front view of the ballast removal apparatus of the state supported by the vehicle. 車両に支持された状態のバラスト除去装置の側面図である。It is a side view of the ballast removal apparatus of the state supported by the vehicle. バラスト除去装置の一部を破断して示す平面図である。It is a top view which fractures | ruptures and shows a part of ballast removal apparatus. カバー板を除いて示す無端チェーン及びこれを支持する支持部材の拡大部分平面図である。It is an enlarged partial top view of an endless chain shown excluding a cover board and a support member which supports this. 支持部材の直線部分における無端チェーンの拡大部分側面図である。It is an expanded partial side view of the endless chain in the linear part of a supporting member. 支持部材の直線部分における先端の拡大部分側面図である。It is an expanded partial side view of the front-end | tip in the linear part of a supporting member. 案内部材の半断面図である。It is a half sectional view of a guide member.
符号の説明Explanation of symbols
 1 バラスト除去装置
21 支持部材
23 スプロケット
25 無端チェーン
27 フード
37,39 支持部材の直線部
41 支持部材の湾曲部
45 リンクベース
47 ビット
49 掻き取り板
55 ジョイントリンク
69,71 重合部
81 案内部材
DESCRIPTION OF SYMBOLS 1 Ballast removal apparatus 21 Support member 23 Sprocket 25 Endless chain 27 Hood 37, 39 Straight part 41 of support member Curved part 45 of support member Link base 47 Bit 49 Scraping plate 55 Joint link 69, 71 Superposition part 81 Guide member
 図1及び図2を参照すると、鉄道線路上に配置された本発明に係るバラスト除去装置1と、該バラスト除去装置を移動させ、また操作するための機能を有する車両3とが示されている。 Referring to FIGS. 1 and 2, there is shown a ballast removing device 1 according to the present invention disposed on a railroad track, and a vehicle 3 having a function for moving and operating the ballast removing device. .
 バラスト除去装置1は、鉄道線路における一対のレール5及びこれを支える複数の枕木7に及ぼされる荷重の分散、騒音発生の低減等を図るために路盤上に敷かれた多数の砂利や砕石からなるバラスト(道床)(図示せず)の交換を目的としてこれを除去すべく、稼動される。車両3は、バラスト除去装置1の稼動のために必要とされる前記鉄道線路への進入、線路脇での走行等を可能とする一対のクローラ9と、レール5上での走行を可能とする複数の鉄輪11とを備える。 The ballast removing device 1 is composed of a large number of gravel and crushed stones laid on a roadbed in order to disperse a load applied to a pair of rails 5 on a railroad track and a plurality of sleepers 7 that support the rails, reduce noise generation, and the like. Operated to remove ballast (not shown) for the purpose of replacement. The vehicle 3 enables traveling on the rail 5 and a pair of crawlers 9 that enable entry into the railroad track, travel on the side of the track, and the like that are necessary for the operation of the ballast removing device 1. A plurality of iron wheels 11 are provided.
 バラスト除去装置1は、車両3に搭載された動力機構13を介して、車両3に片持ち支持されている。動力機構13を作動させることによりバラスト除去装置1を回転又は旋回させることができる。この回転又は旋回操作により、バラスト除去装置1をその作業位置(図1及び図2に示す位置)に位置決め、また前記作業位置から退出させることができる。バラスト除去装置1は、さらに、後述するように、前記鉄道線路上から除去したバラストを搬送する機能を有する。他方、車両3はバラスト除去装置1からバラストを受け取り、これを例えば待機中のダンプトラックに移送するために用いられる、長さを伸縮可能とすべく二段に配置された一対のベルトコンベヤ15と、振り分けベルトコンベヤ17とを有する。符号19は、車両3の運転装置及びバラスト除去装置1の操作装置が配置された操作室を示す。 The ballast removing device 1 is cantilevered on the vehicle 3 via a power mechanism 13 mounted on the vehicle 3. By operating the power mechanism 13, the ballast removing device 1 can be rotated or turned. By this rotation or turning operation, the ballast removing device 1 can be positioned at the work position (position shown in FIGS. 1 and 2), and can be retracted from the work position. As will be described later, the ballast removing apparatus 1 further has a function of conveying the ballast removed from the railroad track. On the other hand, the vehicle 3 receives a ballast from the ballast removing device 1, and is used to transfer the ballast to, for example, a waiting dump truck. And a sorting belt conveyor 17. Reference numeral 19 denotes an operation room in which the driving device of the vehicle 3 and the operation device of the ballast removing device 1 are arranged.
 図3及び図4に示すように、バラスト除去装置1は、支持部材21と、該支持部材に回転可能に支承された一対のスプロケット23と、両スプロケット23に巻き掛けられた無端チェーン25と、支持部材21に支持され、該支持部材を構成する後記湾曲部41の一部とこれに連なる直線部39とに沿って伸びる無端チェーン25の一部を取り巻くフード27(図4)とを備える。 As shown in FIGS. 3 and 4, the ballast removing apparatus 1 includes a support member 21, a pair of sprockets 23 rotatably supported on the support member, an endless chain 25 wound around both sprockets 23, A hood 27 (FIG. 4) is supported by the support member 21 and surrounds a part of the endless chain 25 extending along a part of the curved part 41 described later and the linear part 39 connected thereto.
 図2に示すように、支持部材21は全体にU字形に伸びる細長いフレーム29からなり、その伸長方向に関して相互に直列に連なる一の直線部37、曲線部すなわち湾曲部41、及びもう一つの直線部39を有する。まっすぐに伸びる両直線部37,39に対して、両直線部37,39間の湾曲部41は円弧を描くように伸びている。無端チェーン25を支持する支持部材21すなわちフレーム29は、バラスト除去装置1が稼動位置に置かれた状態を示す図2で見て、一方の直線部37が前記鉄道線路の路盤の上方位置にあって枕木7の下方位置において両レール5を横断するように水平に伸びている。この直線部37に連なる湾曲部41は枕木7及び両レール5の側方空間を上方に向けて伸びている。また、湾曲部41に連なる他の一方の直線部39は両レール5の上方空間を一方の直線部37に相対して斜め上方に向けて伸びている。 As shown in FIG. 2, the support member 21 is composed of an elongated frame 29 extending in a U-shape as a whole, one linear portion 37, a curved portion or curved portion 41, and another straight line connected in series with each other in the extending direction. Part 39. In contrast to the straight portions 37 and 39 extending straight, the curved portion 41 between the straight portions 37 and 39 extends to draw an arc. The support member 21 that supports the endless chain 25, that is, the frame 29, is seen in FIG. 2 showing the state where the ballast removing device 1 is placed in the operating position, and one straight portion 37 is located above the roadbed of the railroad track. Thus, it extends horizontally so as to cross both rails 5 at a position below the sleepers 7. The curved portion 41 connected to the straight portion 37 extends upward in the lateral space of the sleepers 7 and both rails 5. Further, the other one linear portion 39 connected to the curved portion 41 extends obliquely upward in the upper space of both rails 5 relative to the one linear portion 37.
 図4に示すように、フレーム29は、図2の紙面方向に関して互いに間隔をおいて位置する互いに平行な一対の側部31と、両側部31の上下にそれぞれ位置する上部32及び下部33と、1つの端部35とを有する。端部35は、一方の直線部37の先端に位置する。端部35は、両側部31と上下両部32,33とが規定する空間に該空間の長手方向へ移動可能であるようにまた両側部31及び下部33とに固定可能であるように受け入れられた基部分35aと、該基部分に連なり前記空間外に突出する一対の板状の軸受部分35bとを有する。図4においては、無端チェーン25の平面形状を示すために、フレーム29の上部32と、端部35における一方の軸受部分35bが取り除かれている。 As shown in FIG. 4, the frame 29 includes a pair of parallel side portions 31 that are spaced from each other with respect to the paper surface direction of FIG. 2, an upper portion 32 and a lower portion 33 that are respectively positioned above and below the side portions 31, One end 35. The end portion 35 is located at the tip of one linear portion 37. The end portion 35 is received so as to be movable in the longitudinal direction of the space in a space defined by the both side portions 31 and the upper and lower portions 32 and 33 and to be fixed to the both side portions 31 and the lower portion 33. A base portion 35a, and a pair of plate-like bearing portions 35b that are connected to the base portion and project outside the space. In FIG. 4, in order to show the planar shape of the endless chain 25, the upper portion 32 of the frame 29 and one bearing portion 35 b at the end portion 35 are removed.
 フレーム29の端部35の両軸受部分35b間に一方のスプロケット23が配置されている。このスプロケット23は、両軸受部分35bにこれらに垂直な軸線の周りに回転可能に支承されている。両側部31及び下部33に対する端部35の基部分35aの移動及び移動後の位置での固定により、両スプロケット23に巻き掛けられた無端チェーン25の張り具合を調整することができる。なお、他の一方のスプロケット23は他の一方の直線部39の端部に回転可能に支承され、また、当該スプロケットはこれに回転動力を与えるための油圧モータのような駆動源43に接続されている。駆動源43は、フード27上に配置され、これに支持されている。 One sprocket 23 is disposed between both bearing portions 35 b of the end portion 35 of the frame 29. The sprocket 23 is supported by both bearing portions 35b so as to be rotatable around an axis perpendicular to them. By moving the base portion 35a of the end portion 35 with respect to the side portions 31 and the lower portion 33 and fixing the base portion 35a after the movement, it is possible to adjust the tension of the endless chains 25 wound around both the sprockets 23. The other sprocket 23 is rotatably supported at the end of the other one linear portion 39, and the sprocket is connected to a drive source 43 such as a hydraulic motor for providing rotational power thereto. ing. The drive source 43 is disposed on the hood 27 and supported by the hood 27.
 図示の例において、フレーム29の上部32は、その両側部31上に並べて配置されかつ例えば複数のボルト(図示せず)により固定された複数の板体からなる。これらの板体は、フード27で覆われていないフレーム29の一部、すなわち一方の直線部37から湾曲部41の一部までの範囲に亘って配置されている。湾曲部41の残部から他の一方の直線部39までの範囲については、この範囲を覆うフード27の内壁面が上部32の役割を担う。また、フレーム29の下部33はその両側部31に連なり、これと一体をなす1つの板体からなる。この板体は、フード27の外部及び内部の双方に亘って伸びている。上下両部32,33は、それぞれ、両側部31及び端部35をこれらの上方及び下方において覆いかつこれらの側方に張り出している。上下両部32,33及びフード27の前記内壁面はこれらの間に無端チェーン25を受け入れ、両側部31の周囲に無端チェーン25を支持する作用をなし、また無端チェーン25の走行用案内手段として機能する。 In the illustrated example, the upper portion 32 of the frame 29 is composed of a plurality of plate bodies arranged side by side on both side portions 31 and fixed by, for example, a plurality of bolts (not shown). These plates are arranged over a part of the frame 29 not covered with the hood 27, that is, a range from one straight part 37 to a part of the curved part 41. Regarding the range from the remaining portion of the curved portion 41 to the other one straight portion 39, the inner wall surface of the hood 27 covering this range plays the role of the upper portion 32. Further, the lower portion 33 of the frame 29 is connected to both side portions 31 and is formed of a single plate that is integrated therewith. This plate extends over both the outside and the inside of the hood 27. The upper and lower parts 32 and 33 respectively cover the side part 31 and the end part 35 at the upper side and the lower side thereof, and project to the sides. The inner wall surfaces of the upper and lower parts 32 and 33 and the hood 27 receive the endless chain 25 between them, and serve to support the endless chain 25 around the both side parts 31, and also serve as travel guide means for the endless chain 25. Function.
 無端チェーン25は、揺動軸線及びこれに垂直な他の揺動軸線の周りに揺動可能であるように互いに連結された複数のリンクベース45と、各リンクベース45に支持されたビット47及び掻き取り板49とを備える。 The endless chain 25 includes a plurality of link bases 45 connected to each other so as to be able to swing around a swing axis and another swing axis perpendicular thereto, and a bit 47 supported on each link base 45 and A scraping plate 49.
 図4を参照すると、各リンクベース45は全体にπ字形を呈する横断面形状を有し、全体に矩形状を呈する基板部51と、該基板部に直交する、互いに平行な一対の板状のフランジ部53とからなる。基板部51は、無端チェーン25の外側面すなわち無端チェーン25が規定する輪の外側Oに面する側面を規定する。また、両フランジ部53の自由端面が、無端チェーン25の内側面すなわち前記輪の内側Iに面する側面を規定する。 Referring to FIG. 4, each link base 45 has a cross-sectional shape that has a π-shape as a whole, a substrate portion 51 that has a rectangular shape as a whole, and a pair of plate-like plates that are orthogonal to the substrate portion and are parallel to each other. It consists of a flange portion 53. The substrate portion 51 defines the outer surface of the endless chain 25, that is, the side surface facing the outer side O of the ring defined by the endless chain 25. Further, the free end surfaces of both flange portions 53 define the inner side surface of the endless chain 25, that is, the side surface facing the inner side I of the ring.
 互いに隣接する各対のリンクベース(隣接リンクベース)45は、前記揺動軸線の周りに揺動可能であるように、連結部材であるジョイントリンク55と、該ジョイントリンクと両隣接リンクベース45との双方を貫通する一対のピン57とを介して相互に連結されている。より詳細には、ジョイントリンク55はその一部が各隣接リンクベース45の両フランジ部53間に配置され、各ピン57が各隣接リンクベース45の両フランジ53とジョイントリンク55とを貫通している。各ピン57は、前記揺動軸線を規定する。 Each pair of link bases (adjacent link bases) 45 adjacent to each other includes a joint link 55 that is a connecting member, and the joint link and both adjacent link bases 45 so as to be swingable around the swing axis. Are connected to each other via a pair of pins 57 penetrating both of them. More specifically, a part of the joint link 55 is disposed between the flange portions 53 of the adjacent link bases 45, and the pins 57 penetrate the flanges 53 of the adjacent link bases 45 and the joint links 55. Yes. Each pin 57 defines the swing axis.
 さらに、両隣接リンクベース45が前記他の揺動軸線の周りに揺動可能であるように、ジョイントリンク55が、互いに噛み合う一対の櫛状のブロック体59により構成されている。両ブロック体59は、これらの噛み合わされた櫛状部分を貫通するピン61により相互に連結されている。ピン61は、前記他の揺動軸線を規定する。なお、図示のピン61は、頭部とこれに連なる軸部とを有する(図示せず)。両ブロック体59の一方には、ピン61の軸部のみの挿通を許しかつピン61の頭部を受け入れ可能である中空の受け入れ部63が設けられている。ピン61の頭部は、受け入れ部63に螺合された蓋部材64により覆われている。なお、両隣接リンクベース45についてのピン57及びピン61の周りの揺動を可能とすべく、両隣接リンクベース45はこれらの間に後記する僅かな間隙Sが存するように配置されている。 Furthermore, the joint link 55 is composed of a pair of comb-like block bodies 59 that mesh with each other so that both adjacent link bases 45 can swing around the other swing axis. Both block bodies 59 are connected to each other by pins 61 that pass through these interdigitated comb-like portions. The pin 61 defines the other swing axis. In addition, the pin 61 of illustration has a head part and the axial part connected to this (not shown). One of the block bodies 59 is provided with a hollow receiving portion 63 that allows only the shaft portion of the pin 61 to be inserted and can receive the head portion of the pin 61. The head of the pin 61 is covered with a lid member 64 that is screwed into the receiving portion 63. In order to allow the two adjacent link bases 45 to swing around the pin 57 and the pin 61, the two adjacent link bases 45 are arranged with a slight gap S described later between them.
 両スプロケット23に巻き掛けられた無端チェーン25は、そのリンクベース45の両フランジ部53において、フレーム29の上下両部32、33間に保持され、またフード27内においては下部33とフード27の前記内壁面との間に保持され、リンクベース45の両フランジ部53の前記自由端においてフレーム29の両側部31に対向している。なお、図示の例では、無端チェーン25におけるリンクベース45の両フランジ部53と、フレーム29における各側部31との接触に伴う両者の磨耗低減を図るため、フレーム29の各側部31がこれに取り付けられたウエアプレート66で覆われている。また、前記他方のスプロケット23の回転動力は、該スプロケットの歯が各リンクベース45における一対のジョイントリンク55間に食い込みかつこれらに係合し、両ジョイントリンク55の一方を介して、リンクベース45に伝達される。 The endless chain 25 wound around both the sprockets 23 is held between the upper and lower parts 32 and 33 of the frame 29 at both flange parts 53 of the link base 45. It is held between the inner wall surfaces and faces both side portions 31 of the frame 29 at the free ends of both flange portions 53 of the link base 45. In the illustrated example, each side portion 31 of the frame 29 is used to reduce wear caused by contact between both flange portions 53 of the link base 45 in the endless chain 25 and each side portion 31 in the frame 29. It is covered with the wear plate 66 attached to. The rotational power of the other sprocket 23 is such that the teeth of the sprocket bite into and engage with a pair of joint links 55 in each link base 45, via one of the joint links 55. Is transmitted to.
 支持部材21であるフレーム29に支持された無端チェーン25は、前記したように、フレーム29の両直線部37,39及びこれらの直線部37,39に連なる湾曲部41(図2)に沿って伸びている。無端チェーン25における両隣接リンクベース45は、これらが各スプロケット23の周囲を巡るとき、前記揺動軸線を規定するピン57の周りに揺動する。このとき、無端チェーン25の進行方向に関して互いに相対する状態にあった両リンクベース45のフランジ部53が、互いに角度をなす状態に変化する。また、両リンクベース45はこれらがフレーム29の湾曲部41に沿って走行するときは、前記他の揺動軸線を規定するピン61の周りに揺動する。このとき、同一の平面上にあった両リンクベース45の基板部51が互いに角度をなす状態に変化する。 As described above, the endless chain 25 supported by the frame 29 that is the support member 21 extends along both the straight portions 37 and 39 of the frame 29 and the curved portion 41 (FIG. 2) connected to the straight portions 37 and 39. It is growing. Both adjacent link bases 45 in the endless chain 25 swing around a pin 57 that defines the swing axis when they travel around each sprocket 23. At this time, the flange portions 53 of both link bases 45 that are in a state of being opposed to each other with respect to the traveling direction of the endless chain 25 are changed to an angled state. Further, when both the link bases 45 travel along the curved portion 41 of the frame 29, the link bases 45 swing around the pin 61 that defines the other swing axis. At this time, the substrate portions 51 of both link bases 45 located on the same plane are changed into an angled state.
 各リンクベース45に支持されたビット47及び掻き取り板49は、それぞれ、各リンクベース45の基板部51から前記輪の外側Oに向けて垂直に伸びており、これにより無端チェーン25の周囲に突出している。ビット47は、リンクベース45の基板部51に例えば溶接により固定され、あるいは図4に示すように、基板部51に固定された、ビット47を受け入れ可能であるホルダ65に差し込まれかつ取り外し可能に固定される。図4に示す例によれば、ビット47が磨耗し、破損等したとき、リンクベース45を丸ごと交換するのではなく、ビット47のみを交換することができる。また、突き崩されるバラストの硬さに応じてこれに対応可能である強度又は硬度を有するビットの装填及び交換を容易に行うことができる。 The bit 47 and the scraping plate 49 supported by each link base 45 extend vertically from the base plate portion 51 of each link base 45 toward the outer side O of the ring, and thereby, around the endless chain 25. It protrudes. The bit 47 is fixed to the substrate portion 51 of the link base 45 by, for example, welding, or is inserted into a holder 65 that is fixed to the substrate portion 51 and can receive the bit 47 as shown in FIG. Fixed. According to the example shown in FIG. 4, when the bit 47 is worn, damaged, or the like, it is possible to replace only the bit 47 instead of replacing the entire link base 45. In addition, it is possible to easily load and replace a bit having a strength or hardness that can correspond to the hardness of the ballast to be broken.
 図1及び図2に示すバラスト除去装置1の稼動状態において、支持部材21の直線部37を介して無端チェーン25の一部が前記バラストに押し付けられかつ回転駆動されるとき、ビット47が次々に前記バラストに衝突し、これを突き崩す作用をなす。突き崩されたバラストは、無端チェーン25下に残る他のバラスト又は路盤上において、掻き取り板49により掻き取られ、支持部材21の直線部37からこれに連なる湾曲部41に向けて連行される。湾曲部41に連行された前記バラストは、その後、湾曲部41とこれに連なる直線部39とに沿って伸びる無端チェーン25の一部を覆うフード27内に押し込まれる。 1 and 2, when a part of the endless chain 25 is pressed against the ballast via the linear portion 37 of the support member 21 and is rotationally driven, the bits 47 are successively moved. It collides with the ballast and acts to crush it. The broken ballast is scraped off by the scraping plate 49 on the other ballast or the roadbed remaining under the endless chain 25, and is taken from the linear portion 37 of the support member 21 toward the curved portion 41 connected thereto. . The ballast entrained in the bending portion 41 is then pushed into the hood 27 that covers a part of the endless chain 25 extending along the bending portion 41 and the linear portion 39 connected to the bending portion 41.
 フード27は、その内部に押し込まれたバラストがフード27内を滑り落ちないように、また、フード27内での掻き取り板49による連行が可能であるように、その内壁面とリンクベース45及び掻き取り板49との間の間隔が設定されている。図示の例では、フード27は全体に扁平な矩形の横断面形状を有し、その相対する一対の内壁面が部分的に円弧状を呈する。前記バラストは、フード27内を走行する掻き取り板49により、上方位置にあるスプロケット23に向けて、搬送される。 The hood 27 has an inner wall surface and a link base 45 so that the ballast pushed into the hood 27 does not slide down in the hood 27 and can be entrained by the scraping plate 49 in the hood 27. An interval between the scraping plate 49 is set. In the example shown in the drawing, the hood 27 has a flat rectangular cross-sectional shape as a whole, and a pair of opposing inner wall surfaces partially form an arc shape. The ballast is conveyed toward the sprocket 23 at the upper position by a scraping plate 49 that travels in the hood 27.
 図2に示すように、フード27の上部開放端には、ここに搬送された前記バラストをフード27の外部下方に放出するためのホッパ67が設けられている。ホッパ67から放出されたバラストは、ホッパ67の下方に移動、配置されるベルトコンベヤ15上に落とされ、ベルトコンベヤ15により予め定められた適当な場所に運ばれる。 As shown in FIG. 2, a hopper 67 for discharging the ballast conveyed here to the outside lower side of the hood 27 is provided at the upper open end of the hood 27. The ballast discharged from the hopper 67 is dropped onto the belt conveyor 15 which is moved and arranged below the hopper 67 and is transported to a predetermined place by the belt conveyor 15.
 ところで、両隣接リンクベース45は、前記したように、これらの揺動運動を保障するために互いに間隔をおいて連結され、これらの間に間隙S(図4及び6)が存する。本発明にあっては、前記バラストの除去作業中における間隙Sへのバラストの嵌まり込みを防止するため、両隣接リンクベース45に、無端チェーン25の周囲すなわち前記輪の外側Oに面する一組の重合部69,71が設けられている。両重合部69,71は、両隣接リンクベース45が各スプロケット23の周囲以外に位置するとき、すなわち支持部材21の各端部以外の位置にあるときに互いに重合可能であり、重合部69、71相互の重なり合いにより両隣接リンクベース45間の間隙Sが、これにバラストが入り込むことがないように、実質的に閉ざされる。これにより、間隙Sへのバラストの嵌まり込みを原因とするリンクベース45の摩損、破損の発生機会が低減され、また、無端チェーン25の振動の発生機会が低減される。 By the way, as described above, the two adjacent link bases 45 are connected to each other at an interval in order to ensure their swinging motion, and a gap S (FIGS. 4 and 6) exists between them. In the present invention, in order to prevent the ballast from being fitted into the gap S during the operation of removing the ballast, the two adjacent link bases 45 face the periphery of the endless chain 25, that is, the outer side O of the ring. A set of overlapping portions 69 and 71 is provided. The two overlapping portions 69 and 71 can overlap each other when both adjacent link bases 45 are located outside the periphery of each sprocket 23, that is, at positions other than the respective end portions of the support member 21, The gap S between the two adjacent link bases 45 is substantially closed so that the ballast does not enter into the gap S due to the overlapping of the 71. As a result, the chance of wear and breakage of the link base 45 caused by the ballast fitting into the gap S is reduced, and the chance of vibration of the endless chain 25 is reduced.
 一組の重合部69,71は、両隣接リンクベース45における基板部51の互いに相対する両端部、すなわちリンクベース45の走行方向に関する両端部にそれぞれ設けられ、無端チェーン25の周囲に面している。図示の例では、一方の重合部69が鉤形を呈し、その先端部分が間隙Sを越えて他方の重合部71を覆う位置まで伸びている。他方の重合部71は平坦面からなり、鉤形の重合部69の前記先端部分により、該先端部分との間に間隔をおいて、覆われている。鉤形の重合部69の前記先端部分と他方の重合部71との間の前記相互間隔は、除去対象であるバラストを構成する砂利や砕石の大きさを考慮して、両重合部69,71間へのバラストの侵入を阻止し得る大きさに設定される。なお、両重合部69,71には、それぞれ、両隣接リンクベース45についての前記他の揺動軸線を規定するピン61の頭部受け入れ部63の貫通を許す半円形の切り欠き75が設けられている。 The pair of overlapping portions 69 and 71 are provided at opposite end portions of the base plate portion 51 in both adjacent link bases 45, that is, both end portions in the traveling direction of the link base 45, and face the periphery of the endless chain 25. Yes. In the illustrated example, one overlapping portion 69 has a bowl shape, and the tip portion extends beyond the gap S to a position that covers the other overlapping portion 71. The other overlapping portion 71 has a flat surface and is covered with the tip portion of the bowl-shaped overlapping portion 69 with a space between the tip portion. The mutual interval between the tip portion of the bowl-shaped overlapping portion 69 and the other overlapping portion 71 is determined by taking into consideration the size of gravel and crushed stone constituting the ballast to be removed. It is set to a size that can prevent the ballast from entering between. Each of the overlapping portions 69 and 71 is provided with a semicircular cutout 75 that allows the head receiving portion 63 of the pin 61 that defines the other swing axis for both adjacent link bases 45 to pass through. ing.
 また、図示の例では、無端チェーン25の内側Iからその外側Oに向かう方向すなわち無端チェーン25の横断方向に関して互いに相対する重合部69の前記先端部分と重合部71との対向面が、互いに平行な一対のテーパ面とされている。前記テーパ面とすることにより、一方の重合部69を鉤形としたことに伴う、無端チェーン25の横断方向に関するリンクベース45の幅寸法の増大をより小さいものに抑えることができる。 Further, in the illustrated example, the facing surfaces of the overlapping portion 69 and the overlapping portion 71 facing each other in the direction from the inner side I to the outer side O of the endless chain 25, that is, the transverse direction of the endless chain 25, are parallel to each other. A pair of tapered surfaces is used. By using the tapered surface, an increase in the width dimension of the link base 45 in the transverse direction of the endless chain 25, which is caused when the one overlapping portion 69 is formed in a bowl shape, can be suppressed to a smaller one.
 図4及び図6に示すように、両重合部69,71は、両隣接リンクベース45がスプロケット23を周回するためにピン57の周りに揺動するとき、周回以前の互いに重なり合った状態から互いに離れた状態へと移行し、両重合部69,71間に間隙Sが現れる。しかし、この間隙Sへのバラストの侵入は生じにくい。スプロケット23の周囲の位置では、両隣接リンクベース45にスプロケット23の回転運動に伴う遠心力が働いているからであり、また、この遠心力の作用により、前記周回以前において両重合部69,71間に侵入し、挟まることがあるバラストを外部に放り出すことができる。また、図5及び図6に示すように、各リンクベース45の基板部51に孔73が設けられている。孔73は、両隣接リンクベース45の両重合部69,71間、又は他の箇所からリンクベース45の両フランジ部53間に侵入することがあるバラストの前記遠心力を利用した放出を行うための放出口として機能する。 As shown in FIGS. 4 and 6, when the adjacent link bases 45 swing around the pin 57 to circulate around the sprocket 23, the overlapping portions 69, 71 are separated from each other from the state where they overlap each other. It shifts to a separated state, and a gap S appears between the overlapping portions 69 and 71. However, the ballast does not easily enter the gap S. This is because the centrifugal force associated with the rotational movement of the sprocket 23 is acting on both adjacent link bases 45 at positions around the sprocket 23, and both the overlapping portions 69, 71 are caused by the centrifugal force before the circulation. Ballast that can enter and get caught in between can be thrown out. Further, as shown in FIGS. 5 and 6, a hole 73 is provided in the substrate portion 51 of each link base 45. The hole 73 discharges the ballast that may enter between the overlapping portions 69 and 71 of both adjacent link bases 45 or between the flange portions 53 of the link base 45 from other locations using the centrifugal force. It functions as a discharge outlet.
 また、両隣接リンクベース45は支持部材21の湾曲部41を通過するとき、ピン61の周りに揺動する。これに伴って両重合部69,71は湾曲部41の内周側において互いに近付きかつその外周側において互いに離れる方向へと揺動する。図示の例においては、湾曲部41における前記外周側での両重合部69,71の相互重なり合いを維持することを可能とすべく、一方の重合部71について、前記湾曲部41の外周側に位置する部分71aの幅寸法(リンクベース45の走行方向に関する方向)が、内周側に位置する部分71bの幅寸法より広いものに設定されている。 Further, both adjacent link bases 45 swing around the pin 61 when passing through the curved portion 41 of the support member 21. Accordingly, both overlapping portions 69 and 71 swing toward each other on the inner peripheral side of the bending portion 41 and away from each other on the outer peripheral side. In the illustrated example, one overlapping portion 71 is positioned on the outer peripheral side of the bending portion 41 so that the overlapping portions of the overlapping portions 69 and 71 on the outer peripheral side of the bending portion 41 can be maintained. The width dimension of the portion 71a to be performed (direction related to the traveling direction of the link base 45) is set to be wider than the width dimension of the portion 71b located on the inner peripheral side.
 ここで図5及び図6を参照すると、スプロケット23の回転軸線方向(図上において上下方向)に関して互いに相対する各リンクベース45の基板部51の両縁77,79が、それぞれ、同じ曲率を有する円弧を描くように形成されている。これらの円弧は、それぞれ、支持部材21の湾曲部41に沿って伸びる2つのより大きい円弧の一部をなすように設定されている。このため、連続する複数のリンクベース45が支持部材21の湾曲部41に沿って走行するとき、支持部材21による案内作用下にあるこれらのリンクベース45は、湾曲部41に沿って伸びるようにピン61の周りに揺動する。このとき、互いに隣接する両リンクベース45における縁77同士が一方の前記大きい円弧上に位置し、また、縁79同士がもう一方の前記大きい円弧上に位置し、これにより、湾曲部41におけるリンクベース45の円滑な走行が確保される。円弧状をなす基板部51の一方の縁79は、これが直線状に伸びる場合と比べて、前記バラストの除去作業時における前記バラスト又は路盤に対する接触面積が小さいことから、無端チェーン25の走行に対する抵抗が少なくまたリンクベース45の磨耗が少ない。 5 and 6, both edges 77 and 79 of the base plate portion 51 of each link base 45 facing each other with respect to the rotation axis direction (vertical direction in the drawing) of the sprocket 23 have the same curvature. It is formed to draw an arc. Each of these arcs is set to form part of two larger arcs extending along the curved portion 41 of the support member 21. For this reason, when a plurality of continuous link bases 45 travel along the curved portion 41 of the support member 21, these link bases 45 under the guiding action of the support member 21 extend along the curved portion 41. It swings around the pin 61. At this time, the edges 77 of the two link bases 45 adjacent to each other are positioned on one of the large arcs, and the edges 79 are positioned on the other large arc, whereby the links in the curved portion 41 are linked. Smooth running of the base 45 is ensured. Since one edge 79 of the arc-shaped substrate portion 51 has a smaller contact area with the ballast or the roadbed during the ballast removing operation than when the edge 79 extends linearly, the resistance against running of the endless chain 25 is reduced. And the wear of the link base 45 is small.
 図示のバラスト除去装置1にあっては、支持部材21の湾曲部41に沿ってのリンクベース45の走行をより一層円滑なものとするため、湾曲部41の一方の円弧に沿って複数の案内部材81が配置されている(図2参照)。 In the illustrated ballast removing apparatus 1, a plurality of guides are provided along one arc of the curved portion 41 in order to make the travel of the link base 45 along the curved portion 41 of the support member 21 even smoother. A member 81 is disposed (see FIG. 2).
 図7に示すように、案内部材81は、軸83と、該軸の端部に固定された同軸のローラ85とを備える。各案内部材81は、そのローラ85の周面がリンクベース45の両フランジ部53の一方(図5及び図6において上方)、より詳細には一方のフランジ部53に形成された湾曲面86に接するように配置され、その軸部83を取り巻く軸受87を介して支持部材21に固定されている。一方のフランジ部53の湾曲面86に接するローラ85はリンクベース45が移動するときに生じる摩擦力により回転し、湾曲面86と同心関係又は同軸関係にあるリンクベース45の円弧状の縁77を湾曲部41における前記一方の円弧上に整列させる作用をなす。 As shown in FIG. 7, the guide member 81 includes a shaft 83 and a coaxial roller 85 fixed to the end of the shaft. Each guide member 81 has a circumferential surface of the roller 85 on one of the flange portions 53 of the link base 45 (upward in FIGS. 5 and 6), more specifically, on a curved surface 86 formed on one flange portion 53. It arrange | positions so that it may contact | connect and it is being fixed to the supporting member 21 via the bearing 87 surrounding the axial part 83. FIG. The roller 85 in contact with the curved surface 86 of one flange portion 53 is rotated by a frictional force generated when the link base 45 moves, and the arc-shaped edge 77 of the link base 45 concentrically or coaxially with the curved surface 86. The curved portion 41 is aligned on the one arc.
 この案内部材81においては、軸83を回転可能に支持する軸受87がローラ85の背後にあって、フード27内を搬送されるバラストに対して直接に相対しないため、バラストの搬送に伴って生じるその細かい破片や埃が軸受87の内部、図示の例では外レース89と内レース91との間に侵入し、軸受87が作動不良となることを防止することができる。その結果、ローラ85の回転不良とこれに伴うリンクベース45に対する不十分な案内作用のために、バラストの搬送能率を損ねる無端チェーン25の振動の発生を防止することができる。 In this guide member 81, the bearing 87 that rotatably supports the shaft 83 is behind the roller 85 and does not directly face the ballast that is transported in the hood 27, so that it occurs with the transport of the ballast. It is possible to prevent the fine fragments and dust from entering the inside of the bearing 87, between the outer race 89 and the inner race 91 in the illustrated example, and causing the bearing 87 to malfunction. As a result, it is possible to prevent occurrence of vibration of the endless chain 25 that impairs the ballast conveying efficiency due to the poor rotation of the roller 85 and the insufficient guide action with respect to the link base 45 associated therewith.

Claims (4)

  1.  鉄道線路のバラストを除去するために使用され、使用の際、直列に連なる、一対の直線部及び両直線部間の湾曲部を有する支持部材にその両直線部及びその湾曲部に沿って伸びるように支持され、また、前記支持部材の両直線部にそれぞれ回転可能に支承された一対のスプロケットに巻き掛けられる無端チェーンであって、
     揺動軸線の周りに互いに揺動可能に連結されまた前記支持部材の湾曲部に沿っての伸長が可能であるように前記揺動軸線に直交する他の揺動軸線の周りに互いに揺動可能に連結された複数のリンクベースと、各リンクベースに支持され前記無端チェーンの周囲に突出する、前記鉄道線路のバラストを突き崩すためのビット及び前記バラストを掻き取るための掻き取り板とを含み、
     互いに隣接する一対のリンクベースに、両リンクベースが各スプロケットの周囲以外に位置するときに互いに重合可能である、前記無端チェーンの周囲に面する一組の重合部が設けられている、
    ことを特徴とする無端チェーン。
    It is used to remove the ballast of the railroad track, and in use, extends to the support member having a pair of straight portions and a curved portion between the two straight portions that extend in series along the straight portions and the curved portions. And an endless chain wound around a pair of sprockets rotatably supported on both linear portions of the support member,
    It is connected to each other around the swing axis so as to be swingable with respect to each other, and can be swung with respect to another swing axis perpendicular to the swing axis so as to be able to extend along the curved portion of the support member. A plurality of link bases connected to each other, a bit supported by each link base and projecting around the endless chain, and a scraping plate for scraping the ballast and a bit for breaking the ballast of the railroad track ,
    A pair of link bases adjacent to each other are provided with a set of overlapping portions facing the periphery of the endless chain, which can be overlapped with each other when both link bases are located outside the periphery of each sprocket,
    Endless chain characterized by that.
  2.  前記ビットは前記リンクベースに取り外し可能に取り付けられている、
    ことを特徴とする請求項1に記載の無端チェーン。
    The bit is removably attached to the link base;
    The endless chain according to claim 1.
  3.  鉄道線路のバラストを除去するためのバラスト除去装置であって、
     直列に連なる、一対の直線部及び両直線部間の湾曲部を有する支持部材と、
     前記支持部材の両直線部にそれぞれ回転可能に支承された一対のスプロケットと、
     両スプロケットに巻き掛けられかつ前記支持部材に支持され該支持部材の両直線部及び曲線部に沿って伸びる無端チェーンであって揺動軸線の周りに互いに揺動可能に連結されまた前記支持部材の湾曲部に沿っての伸長が可能であるように前記揺動軸線に直交する他の揺動軸線の周りに互いに揺動可能に連結された複数のリンクベースと、各リンクベースに支持され前記無端チェーンの周囲に突出する、前記鉄道線路のバラストを突き崩すためのビット及び前記バラストを掻き取るための掻き取り板と、互いに隣接する一対のリンクベースに設けられ、両リンクベースが各スプロケットの周囲以外に位置するときに互いに重合可能である、前記無端チェーンの周囲に面する一組の重合部とを有する無端チェーンと、
     前記支持部材に支持され、前記支持部材の両直線部の一方とその湾曲部とに沿って伸びる前記無端チェーンの一部を取り巻くフードとを含む、
    ことを特徴とするバラスト除去装置。
    A ballast removing device for removing ballast on railroad tracks,
    A support member having a pair of straight portions and a curved portion between both straight portions, which are connected in series;
    A pair of sprockets rotatably supported on both linear portions of the support member;
    An endless chain wound around both sprockets and supported by the support member and extending along both straight and curved portions of the support member, and is connected to each other around a swing axis so as to be swingable. A plurality of link bases that are swingably connected to each other around another swing axis that is orthogonal to the swing axis so as to be able to extend along the curved portion, and the endless supported by each link base A bit for breaking the ballast of the railroad track and a scraping plate for scraping the ballast projecting around the chain, and a pair of link bases adjacent to each other, both link bases around each sprocket An endless chain having a set of overlapping portions facing the periphery of the endless chain, which are superposed on each other when located in
    A hood that is supported by the support member and that surrounds a part of the endless chain extending along one of the linear portions of the support member and the curved portion thereof,
    The ballast removal apparatus characterized by the above-mentioned.
  4.  さらに、前記支持部材の湾曲部に軸受を介して回転可能に支承された軸と、該軸に固定され前記支持部材の湾曲部において前記リンクベースに接しかつ転動可能である複数のローラとを備える案内部材とを含む
    ことを特徴とする、請求項3に記載のバラスト除去装置。
    And a shaft rotatably supported by a curved portion of the support member via a bearing, and a plurality of rollers fixed to the shaft and in contact with the link base and capable of rolling at the curved portion of the support member. The ballast removing apparatus according to claim 3, further comprising a guide member provided.
PCT/JP2008/072923 2008-12-17 2008-12-17 Endless chain and ballast removal device having same WO2010070741A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2010542777A JP5238040B2 (en) 2008-12-17 2008-12-17 Endless chain and ballast removing apparatus having the same
ATA9474/2008A AT512242B1 (en) 2008-12-17 2008-12-17 ENDLESS CHAIN AND BALLAST DRYING EQUIPMENT THEREOF
PCT/JP2008/072923 WO2010070741A1 (en) 2008-12-17 2008-12-17 Endless chain and ballast removal device having same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2008/072923 WO2010070741A1 (en) 2008-12-17 2008-12-17 Endless chain and ballast removal device having same

Publications (1)

Publication Number Publication Date
WO2010070741A1 true WO2010070741A1 (en) 2010-06-24

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Country Link
JP (1) JP5238040B2 (en)
AT (1) AT512242B1 (en)
WO (1) WO2010070741A1 (en)

Cited By (7)

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Publication number Priority date Publication date Assignee Title
WO2014019021A1 (en) * 2012-07-31 2014-02-06 Lazidis Rail Products Pty Ltd Ballast undercutter
EP2631361A3 (en) * 2012-02-22 2014-11-26 K&K Maschinenentwicklungs GmbH & Co. KG Excavation chain for excavating track bed material
CN106592348A (en) * 2016-12-30 2017-04-26 常州市瑞泰工程机械有限公司 Digger chain applicable to roadway ballast cleaning machine
CN110725167A (en) * 2019-11-19 2020-01-24 常州市瑞泰工程机械有限公司 Digging chain unit, digging chain and side slope screen cleaning vehicle
FR3101891A1 (en) * 2019-10-14 2021-04-16 Matisa Materiel Industriel link for an excavation chain and associated excavation chain
FR3101892A1 (en) * 2019-10-14 2021-04-16 Matisa Materiel Industriel Articulated assembly of two links and associated excavation chain
WO2022257094A1 (en) * 2021-06-11 2022-12-15 清展科技股份有限公司 Screen guide frame structure and screen device having same

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US4882860A (en) * 1988-09-12 1989-11-28 Kershaw Manufacturing Company, Inc. Apparatus for removing ballast from beneath railroad tracks
JPH0681302A (en) * 1992-09-04 1994-03-22 Mitsubishi Heavy Ind Ltd Track bed renovator
JP2004225813A (en) * 2003-01-23 2004-08-12 Komatsu Ltd Bidirectional flexible articulating body, shovelling bidirectional flexible articulating body and railway ballast shovel using the same
JP2004232358A (en) * 2003-01-31 2004-08-19 Komatsu Ltd Scratch-out device and ballast scratch-out machine for railways loaded with it
JP3696059B2 (en) * 2000-07-18 2005-09-14 マルマテクニカ株式会社 Roadbed ballast scraping chain and scraping device

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US3979843A (en) * 1975-11-26 1976-09-14 J. I. Case Company Trenching chain with scoop members

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US4882860A (en) * 1988-09-12 1989-11-28 Kershaw Manufacturing Company, Inc. Apparatus for removing ballast from beneath railroad tracks
JPH0681302A (en) * 1992-09-04 1994-03-22 Mitsubishi Heavy Ind Ltd Track bed renovator
JP3696059B2 (en) * 2000-07-18 2005-09-14 マルマテクニカ株式会社 Roadbed ballast scraping chain and scraping device
JP2004225813A (en) * 2003-01-23 2004-08-12 Komatsu Ltd Bidirectional flexible articulating body, shovelling bidirectional flexible articulating body and railway ballast shovel using the same
JP2004232358A (en) * 2003-01-31 2004-08-19 Komatsu Ltd Scratch-out device and ballast scratch-out machine for railways loaded with it

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2631361A3 (en) * 2012-02-22 2014-11-26 K&K Maschinenentwicklungs GmbH & Co. KG Excavation chain for excavating track bed material
WO2014019021A1 (en) * 2012-07-31 2014-02-06 Lazidis Rail Products Pty Ltd Ballast undercutter
CN106592348A (en) * 2016-12-30 2017-04-26 常州市瑞泰工程机械有限公司 Digger chain applicable to roadway ballast cleaning machine
FR3101891A1 (en) * 2019-10-14 2021-04-16 Matisa Materiel Industriel link for an excavation chain and associated excavation chain
FR3101892A1 (en) * 2019-10-14 2021-04-16 Matisa Materiel Industriel Articulated assembly of two links and associated excavation chain
WO2021074242A1 (en) * 2019-10-14 2021-04-22 Matisa Materiel Industriel Sa Link for a removal chain, and associated removal chain
WO2021074247A1 (en) * 2019-10-14 2021-04-22 Matisa Materiel Industriel Sa Articulated assembly of two links, and associated removal chain
CN110725167A (en) * 2019-11-19 2020-01-24 常州市瑞泰工程机械有限公司 Digging chain unit, digging chain and side slope screen cleaning vehicle
WO2022257094A1 (en) * 2021-06-11 2022-12-15 清展科技股份有限公司 Screen guide frame structure and screen device having same

Also Published As

Publication number Publication date
AT512242B1 (en) 2014-11-15
JPWO2010070741A1 (en) 2012-05-24
JP5238040B2 (en) 2013-07-17
AT512242A2 (en) 2014-06-15
AT512242A5 (en) 2013-06-15

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