JP2012251305A - Road surface spray device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a road surface spray device using a disc spray machine for spraying sprayed materials such as aggregates or gravel having great specific gravities, onto a road surface with predetermined spray densities and uniform quality.SOLUTION: A road surface spray device 10 for spraying gravel 33 onto a road surface 32 with predetermined spray densities comprises: a disc spray machine 11; a moving body 12 mounted with the disc spray machine 11; a spread preventing cover body 13 supported on the moving body 12 and disposed with partitioning the front part and both side parts of the disc spray machine 11; and a spread deflector 14 protruded in a top-view approximately V-shape from a front cover part 13a of the spread preventing cover body 13 to the side of the disc spray machine 11. The spread preventing cover body 13 is provided movably forward and backward relative to the disc spray machine 11, and the spread deflector 14 is provided so that an angle θ1 between both oblique side portions 14a and 14b in the top-view V-shape is adjustable and a falling angle θ2 to the vertical direction is adjustable.

Description

  The present invention relates to a road surface spraying device, and more particularly, to a road surface spraying device for spraying scattered material evenly on a road surface at a predetermined spraying density using a disk-type sprayer.

  For example, a disk type spreader is known as a spraying device for spraying granular freezing inhibitor such as calcium chloride on a road surface in a cold district or spraying rubber chips for rubber chip asphalt paving on a road surface (for example, , See Patent Document 1 and Patent Document 2). The disk-type spreader is a known one provided with a rotating disk to which a diffusion blade member is attached.For example, in addition to a rotating disk provided so as to be capable of high-speed rotation around a rotating shaft arranged vertically or substantially vertically, A support frame, a hopper, a rotation motor, a rotation drive unit, a rotation control unit, and the like are provided.

  A disk-type spreader supplies, for example, a sprinkler such as a freezing inhibitor or rubber chips stored in a hopper to a rotating disk via a rotary valve or supply pipe for adjusting the spray amount, and the rotation speed can be controlled. The rotating disk is rotated by the drive unit, and for example, the supplied sprayed material can be sprayed while being scattered over a wide range via a diffusion blade member attached in the radial direction. In addition, an upper protective plate is joined and fixed to the disk type spreader so as to cover the upper side of the rotating disk, and the protective cover extends upward from the peripheral portion of the upper protective plate so that the protective cover and the rotating disk are protected upward. It is provided at least at the rear part of the rotating disk so as to cover the space between the plate and the outside. And with the upper protective plate and protective cover, the spatter can be efficiently sprayed in the predetermined angle range in front of the disk type spreader while restricting the spatter from scattering above and behind the rotating disk. It has become.

Japanese Patent Laid-Open No. 10-113484 JP 2009-293312 A

  On the other hand, the above-mentioned disk type spreader is suitable for dispersing a relatively light-weight sprinkle such as a granular freezing inhibitor or rubber chip in a sparse state. For example, aggregate or crushed stone For example, when spreading sprinkles with high specific gravity and large variations in size and mass, such as sand and gravel, with a considerable spraying density that covers most of the road surface, for example, spread by rotating the rotating disk For example, the spatter scattered from the machine is likely to be blown in a bundled state on the rear side in the rotation direction of the rotating disk, and easily spread in a spread state on the front side in the rotation direction (see FIG. 8). It becomes difficult to spread evenly and uniformly with the spraying density.

  For this reason, for example, by spreading a specially-opened asphalt mixture on the construction surface, filling the unevenness and voids of the road surface with the spread specially-opened asphalt mixture, spreading gravel, and then tightening with gravel, To form a simple gravel pavement that is stably held on the road surface, the disc-type spreader can be used to spread the gravel efficiently and uniformly at a predetermined spray density. It is necessary to apply.

  In the present invention, even if the specific gravity is large, such as aggregates, crushed stones, and gravel, for example, the disk-type spreader can efficiently and uniformly spread the spread on the road surface at a predetermined spread density. It aims at providing a road surface spreading device.

  The present invention is a road surface spraying device for uniformly spraying a sprinkled material on a road surface at a predetermined spraying density using a disk-type sprayer, wherein the disk-type sprayer and the disk-type sprayer are mounted. A movable body that is movable, and a scattering prevention cover body that is supported by the movable body and that is continuously arranged by partitioning a front portion facing the disk-type spreader and side portions on both sides of the disk-type spreader. And a scattering deflector provided in a state of projecting in a substantially V-shaped plane from the front cover portion of the scattering prevention cover body toward the disk-type spreader side, and the scattering prevention cover body Is provided so as to be able to advance and retreat with respect to the disc-type spreader, and the scattering deflector can adjust the angle between the hypotenuses on both sides of the flat V-shape and adjust the tilt angle with respect to the vertical direction. Possible road surface By providing a fabric device is obtained by achieving the above object.

  In the road surface spray device according to the present invention, it is preferable that a diffusion blade member is detachably attached to the rotating disk of the disk-type spreader so that the angle with respect to the radial direction can be adjusted.

  In the road surface spraying device of the present invention, it is preferable that the scattering deflector is formed of a plastic net.

  Furthermore, in the road surface spray device of the present invention, it is preferable that the anti-scatter cover body is formed of a plastic net.

  Furthermore, in the road surface spraying device of the present invention, the sprayed material is preferably gravel having a particle size of 5 to 13 mm.

  According to the road surface spraying device of the present invention, even with a large specific gravity such as aggregate, crushed stone, or gravel, for example, a disk-type spraying machine efficiently and uniformly spreads the sprayed material on the road surface at a predetermined spraying density. I can go.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic side view illustrating a configuration of a road surface spray device according to a preferred embodiment of the present invention. 1 is a schematic top view illustrating a configuration of a road surface spray device according to a preferred embodiment of the present invention. It is an expanded sectional view explaining the composition of the gravel pavement formed by spreading gravel with the road surface spreading device concerning a preferred embodiment of the present invention. It is explanatory drawing of the construction condition of gravel pavement. It is a schematic top view of the rotating disk of a disk type spreader. BRIEF DESCRIPTION OF THE DRAWINGS It is the schematic side view which shows the structure of the road surface spraying apparatus which concerns on preferable one Embodiment of this invention, and shows a scattering prevention cover body only by frame structure. It is a schematic top view explaining the spreading | spreading situation at the time of spraying a sprinkle with the road surface spreading apparatus which concerns on preferable one Embodiment of this invention. It is an abbreviated top view which shows the condition of application at the time of applying a sprinkle without using a scattering deflector.

  A road surface spraying device 10 according to a preferred embodiment of the present invention shown in FIGS. 1 and 2 includes, as shown in FIG. 3, for example, a special open grain size asphalt mixture 31 on a road bed 35 which is a construction surface of a gravel pavement 30. After spreading the gravel 33 as a sprinkle so as to fill the unevenness and voids of the road surface 32 with the special open-graded asphalt mixture 31 smoothed, the gravel is compacted with a roller 34 (see FIG. 4). In the construction for forming the pavement 35, as shown in FIG. Gravel 33 made of natural gravel with a predetermined spray density, for example, a particle size of 5 to 13 mm, with the leveling surface as the road surface 32, is efficient. Those which are employed as a device for slide into homogeneously spread.

  Here, the gravel pavement 30 is obtained by compacting with the roller 34 after spraying the gravel 33 so as to fill the irregularities and voids of the road surface 32 with the spread specially open-graded asphalt mixture 31 as described above. It is a simple pavement, and the gravel 33 is held on the road surface 32 in a stable state over a long period of time by entering the irregularities and voids by the special open-graded asphalt mixture 31, effectively reducing maintenance and repair work. It has become a useful pavement structure that can be.

  And the road surface spreading apparatus 10 of this embodiment is for uniformly spreading the gravel 33 which is a spread material on the road surface 32 with a predetermined | prescribed distribution density using the disk-type spreader 11, as shown in FIG.1 and FIG.2. 1 is a disk-type spreader 11, a movable body 12 that is movable by mounting the disk-type spreader 11, and a front portion that is supported by the movable body 12 and faces the disk-type spreader 11. Further, the anti-scattering cover body 13 that is continuously arranged by partitioning the side portions on both sides of the disk-type spreader 11, and a flat surface from the front cover portion 13 a of the anti-scattering cover body 13 toward the disk-type spreader 11 side. The scattering deflector 14 is provided so as to protrude in a substantially V-shape, and the anti-scattering cover 13 is provided so as to be able to advance and retreat with respect to the disk-type spreader 11. Is a planar V-shape Both sides of the inclined portion 14a, the adjustable angle θ1 between 14a, are and provided adjustable inclination angle θ2 relative to the vertical direction.

  In this embodiment, the disk-type spreader 11 includes a hopper, a supply pipe, a rotation motor, a rotation drive unit, a rotation control unit, and the like in addition to the rotating disk 15 provided so as to be capable of high-speed rotation. This is a spreader known as a device, supported by a support base 16 formed in a frame shape using various steel materials, and a state in which a rotation axis is arranged vertically or substantially vertically in front of the moving direction of the moving body 12 It is attached with. The rotating disk 15 of the disk-type spreader 11 is made of, for example, a circular steel plate having a diameter of about 100 to 1000 mm. The rotating disk 15 includes a plurality of diffusion members as shown in FIG. A blade member 17 is attached.

  In the present embodiment, the diffusion blade member 17 is, for example, in a state where the other side portion 17b is erected as a diffusion blade by bonding and fixing one side portion 17a of an angle steel having an L-shaped cross section to the upper surface of the rotary disk 15. It can be attached to four locations. Each of the diffusion blade members 17 is port-joined at both ends to a bolt fastening hole 18a disposed on the center side of the rotating disk 15 and an arc-shaped bolt fastening hole 18b disposed on the outer peripheral side of the rotating disk 15. Thus, it is attached to the rotary disk 15 so as to be detachable and the angle θ3 with respect to the radial direction can be adjusted.

  Further, in the present embodiment, as shown in FIGS. 1 and 2, the disk type spreader 11 is provided with an upper protective plate 19a covering the upper side of the rotating disk 15, and the periphery of the upper protective plate 19a. A protective cover 19b extends downward from the portion and is attached to a substantially semicircular portion at the rear of the rotary disk 15 so as to cover the space between the rotary disk 15 and the upper protective plate 19a from the outside. ing. By these, the gravel 33 which is a spread material can be controlled so as not to be scattered above and behind the rotary disk 15.

  Further, in the present embodiment, the pair of ejection width regulating plates 20 are disposed on both sides of the rotating disk 15 so as to cover the interval portion between the rotating disk 15 and the upper protection plate 19a from the side and rotate. The disk 15 is mounted in parallel in a state of extending forward from the support frame 16 to substantially the same position as the tip of the disk 15 (see FIG. 2). Due to the interval width between the tip portions of the discharge width regulating plates 20, the scattering width at the time of discharging the gravel 33 scattered forward from the rotary disk 15 is regulated, and the gravel 33 which is the scattered matter is covered with the anti-scatter cover. It can be efficiently scattered toward the front cover portion 13a of the body 13. In addition, in the side view of FIG. 1, FIG. 6, the road surface spraying apparatus 10 is shown in the state which abbreviate | omitted the discharge width control plate 20. FIG.

  As the moving body 12 on which the disc type spreader 11 is mounted, a base part of various known movable heavy machines including a traveling part made of a roller, a tire, or the like can be diverted and used. A support frame 16 that supports the disc-type spreader 11 and a support leg 21 that supports the frame structure 22 of the anti-scattering cover body 13 are attached to the movable body 12. The movable body 12 is a disc-type spreader. 11 and the anti-scattering cover body 13 can be moved in the traveling direction at the same moving speed as the finisher 36 following the finisher 36 that spreads and smoothes the special open-graded asphalt mixture 31.

  In this embodiment, a transport cart loaded with gravel 33 that can run in parallel with the mobile body 12 and a heavy machine for gravel input such as a back-for are arranged on the side of the mobile body 12, and is a disk type. The gravel 33 can be dispersed while the gravel 33 is appropriately charged into the hopper of the spreader 11 using a heavy machine for loading.

  The anti-scattering cover body 13 includes a frame structure 22 supported from the moving body 12 via support legs 21 and a planar member 23 attached to the frame structure 22 by joining a peripheral portion and an intermediate portion. . As the planar member 23, a plastic net can be preferably used.

  The frame structure 22 is formed into a three-dimensional shape in which the planar shape is substantially U-shaped by, for example, using steel pipes, angle steels, strip-shaped steel plates, and the like as frame members and assembling them by welding bonding or bolt bonding. Is done. The side lateral frame members 24a disposed on the pair of substantially U-shaped side sides constituting the frame structure 22 are formed by steel pipes, and these side lateral frame members 24a are The guide support sleeve 21a provided at the upper end of the support leg 21 is inserted so as to be slidable and fixable using a bolt member or the like. Thereby, the frame structure 22 is attached to the moving body 12 so as to be able to advance and retreat with respect to the moving body 12 and the disk type spreader 11.

  Further, in the present embodiment, the frame structure 22 includes the lateral lateral frame member 24a, the intermediate lateral frame member 24b and the lateral lateral frame member 24a disposed on the substantially U-shaped intermediate side part. From the joint angle portion between the lateral transverse frame member 24b and the corner longitudinal frame member 24c extending downward from the joint angle portion between the lateral transverse frame member 24b and the intermediate lateral frame member 24b. An oblique frame member 24d extending in the vertical direction, a rear vertical frame member 24e extending upward from the distal end portion of the guide support sleeve 21a, and the like. The frame member 24a-24e supports the peripheral portion and the intermediate portion, and is attached with a planar member 23 serving as a scattering prevention wall surface of the anti-scattering cover body 13, so that the front cover portion 13a and the side covers on both sides are attached. A state in which the substantially U-shaped anti-scattering cover body 13 composed of the portion 13b is continuously arranged with a front portion facing the disc-type spreader 11 and side portions on both sides of the disc-type spreader 11 being partitioned. Provided.

  Here, in the present embodiment, a plastic net can be preferably used as the planar member 23 serving as a scattering prevention wall surface of the anti-scattering cover body 13. The plastic net is a known member obtained by extruding a thermoplastic resin such as polyethylene without being knitted. Plastic nets have a uniform mesh size, do not cause breakage due to breakage, and have a stable tensile strength in the vertical and horizontal directions, and the force from the vertical direction is also efficiently dispersed. In addition to being excellent in impact resistance, it has various advantages such as excellent handling and workability due to its low specific gravity and light weight. As such a plastic net, for example, the trade name “tarporin cross” formed using tarpaulin, which is a vinyl-based material obtained by sandwiching polyester fibers between soft synthetic resins, and the trade name “Netron” ( (Registered trademark) (manufactured by Dainippon Plastic Co., Ltd.) and trade name “trical net” (manufactured by Takiron Co., Ltd.) can be used.

  Moreover, in this embodiment, since the gravel 33 which is a sprinkle is preferably natural gravel having a particle size of 5 to 13 mm, the planar member 23 made of a plastic net has a mesh pitch of, for example, about 2 to 5 mm. It is preferable to use one.

  By using a plastic net as the planar member 23 constituting the anti-scattering cover body 13, gravel 33 scattered from the disk type spreader 11 is caused to collide with the plastic net and drop by the appropriate elasticity. The function of efficiently and uniformly spraying 33 with a predetermined spraying density can be more effectively exhibited.

  Further, in the present embodiment, a sheet member (not shown) for preventing scattering, such as a blue sheet, is attached to the scattering prevention cover body 13 so as to cover the planar member 23 made of plastic net from the outside. It can also be left. By covering the planar member 23 made of plastic net from the outside and attaching the sheet member, it is effective that fine gravel 33 particles passing through the mesh of the plastic net are scattered outside the anti-scattering cover body 13. It becomes possible to prevent.

  In the present embodiment, the scattering deflector 14 is provided as a so-called deflector in a state of projecting in a substantially V-shape from the front cover portion 13a of the anti-scattering cover body 13 toward the disc-type spreader 11 side. ing. The scattering deflector 14 includes a deflector frame structure 25 supported from the front cover portion 13a of the anti-scatter cover body 13, and a deflector plane member attached to the deflector frame structure 25 by joining a peripheral portion or an intermediate portion thereof. 26. As the deflecting member planar member 26, a plastic net having a mesh pitch of, for example, about 2 to 5 mm can be preferably used, similarly to the planar member 23 of the anti-scattering cover body 13.

  By using a plastic net as the deflector planar member 26 constituting the scattering deflector 14, the gravel 33 is caused to collide with the plastic net by its appropriate elasticity and deflected rearward in the rotational direction to be dispersed from the gathered state. Thus, it is possible to more effectively exhibit the function of suppressing dispersion and unevenness of the spray density.

  The deflector frame structure 25 is formed into a three-dimensional shape in which the planar shape is substantially V-shaped by, for example, using steel pipes, angle steels, strip steel plates, and the like as frame members and assembling them by welding or bolting. It is formed. The deflector frame structure 25 is supported by the frame structure 22 of the front cover portion 13a, and is provided in a state of projecting inward from the front cover portion 13a toward the disc-type spreader 11. A plane composed of a pair of oblique sides 14a and 14a on both sides is provided by supporting the peripheral part and the intermediate part on the deflector frame structure 25 and attaching the deflector planar member 26 which becomes the deflection wall of the scattering deflector 14. A substantially V-shaped scattering deflector 14 is provided so as to protrude toward the disc-type spreader 11. Further, the deflector frame structure 25 is provided with various known angle adjustment mechanisms, so that the opening angle of the substantially V shape can be adjusted, and the vertical angle with respect to the vertical direction can be adjusted. As a result, the scattering deflector 14 can adjust the angle θ1 between the oblique sides 14a, 14a on both sides, and can adjust the tilt angle θ2 with respect to the vertical direction. .

  In this embodiment, as shown in FIGS. 2 and 6, the construction width B by the road surface spraying device 10, which is defined by the interval width between the side cover portions 13 b on both sides of the anti-scattering cover body 13, The distance L1 between the disc-type spreader 11 and the front cover portion 13a, the angle θ1 between the oblique sides 14a and 14a on both sides of the scattering deflector 14, and the vertical of the scattering deflector 14 depending on the type, the spreading density, etc. The fallen angle θ2 with respect to the direction is appropriately adjusted to spread the scattered matter.

That is, in this embodiment, for example, the construction width B by the road surface spraying device 10 is 2 to 4 m, and the sprayed material is gravel 33 made of natural gravel having a particle size of 5 to 13 mm, and the spraying density. Is set to 10 to 25 kg / m ² , the distance L1 between the disk-type spreader 11 and the front cover portion 13a is such that the gravel 33 spreads efficiently to the end of the anti-scatter cover body 13. For example, it is preferable to set it as about 300-900 mm (680 mm at the time of actual construction). As described above, the distance L1 between the disc-type spreader 11 and the front cover portion 13a is adjusted by guiding the side lateral frame member 24a of the frame structure 22 of the anti-scatter cover body 13 to the support leg portion 21. This can be easily performed by sliding the frame structure 22 with respect to the disc-type spreader 11 by sliding it with respect to the support sleeve 21a.

  In the present embodiment, the angle θ1 between the oblique sides 14a, 14a on both sides of the scattering deflector 14 is, for example, about 80 to 150 ° so that the gravel 33 efficiently spreads to the end of the anti-scattering cover body 13 ( In actual construction, it is preferable that the upper and lower sides be 94 °. The inclination angle θ2 of the scattering deflector 14 with respect to the vertical direction is, for example, about 0 to 30 ° (13 ° during actual construction) so that the gravel 33 is uniformly distributed from the center to the end of the anti-scattering cover 13. It is preferable that

  In the present embodiment, the scattering deflector 14 has a center that is, for example, about 30 to 60 mm above the center of the rotating shaft of the disk-type spreader 11 in FIG. Set so as to be shifted with a shift width L2 of 42.5 mm). Accordingly, it is possible to suppress the spread of the gravel 33 toward the front side in the rotational direction of the disc type spreader 11. Further, the length L3 in the height direction of the deflector planar member 26 by the plastic net of the scattering deflector 14 is, for example, about 475 to 675 mm (575 mm during actual construction). This makes it possible to adjust the amount of gravel 33 sprayed on the central portion.

  And according to the road surface spraying apparatus 10 of this embodiment provided with the above-mentioned structure, even if the sprayed material is gravel 31 having a relatively large specific gravity, the disk-type spraying machine 11 can efficiently and uniformly achieve a predetermined spraying density. It becomes possible to spread gravel 33 on the road surface 32 by the leveling surface of the special open-graded asphalt mixture 31.

  That is, the road surface spray device 10 of the present embodiment includes a scattering prevention cover body 13 that is arranged continuously by partitioning a front portion facing the disk spreader 11 and side portions on both sides of the disk spreader 11, As shown in FIG. 8, it is configured to include a scattering deflector 14 provided so as to project in a substantially V-shaped plane from the front cover portion 13 a of the stop cover body 13 toward the disk-type spreader 11 side. Even if the gravel 33 as the sprinkled material is blown in a collective state on the rear side in the rotational direction of the rotating disk 15 of the disc-type spreader 11, for example, it is blown in a spread state on the front side in the rotational direction. 7, the gravel 33 on the rear side in the rotational direction, which has been blown off in a collective state, is caused to collide with the deflecting body planar member 26 of the scattering deflector 14, preferably a plastic net, Dispersing the gravel 33 on the road surface 32 evenly by uniformly deflecting the gravel 33 on the road surface 32 by effectively deflecting the dispersion and unevenness of the spray density by dispersing the projected gravel 33 further from the back in the rotational direction. It becomes possible to do.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the deflecting body planar member of the scattering deflector and the planar member of the anti-scattering cover body do not necessarily need to be constituted by a plastic net, and may be other plate-like members or sheet-like members. In addition, the sprayed material sprayed by the road surface spraying device of the present invention is not necessarily natural gravel having a particle size of 5 to 13 mm, and other sprayed material having a relatively high specific gravity such as aggregate, crushed stone, or gravel. In addition, a sprinkle having a relatively small specific gravity, such as a freezing inhibitor or a rubber chip, may be used.

DESCRIPTION OF SYMBOLS 10 Road surface spreading | diffusion apparatus 11 Disc type | formula spreader 12 Moving body 13 Anti-scattering cover body 13a Front cover part 13b Side cover part 14 Scattering deflecting body 14a Oblique side part 15 Rotating disk 16 Support stand 17 Diffusion blade member 20 Discharge width control plate 21 Support Leg 21a Guide support sleeve 22 Frame structure 23 Planar member 25 Deflector frame structure 26 Deflector plane member 30 Gravel pavement 31 Special open-graded asphalt mixture 32 Road surface 33 Gravel (sprayed material)

Claims (5)

A road surface spraying device for spraying scattered material evenly on a road surface with a predetermined spraying density using a disk-type spreader,
The disk-type spreader, a movable body that is movable by mounting the disk-type spreader, a front portion that is supported by the movable body and faces the disk-type spreader, and both sides of the disk-type spreader The anti-scatter cover body that is continuously arranged by partitioning the side portions of the anti-scattering cover body, and is provided in a state of projecting in a substantially V-shaped plane from the front cover portion of the anti-scatter cover body toward the disk-type spreader side. And a scattering deflector,
The anti-scatter cover body is provided so as to be able to advance and retreat with respect to the disk-type spreader, and the anti-scattering body is capable of adjusting the angle between the hypotenuses on both sides of the flat V-shape and in the vertical direction. Road surface spraying device that can adjust the tilt angle with respect to.   The road surface spraying device according to claim 1, wherein a diffusion blade member is detachably attached to the rotating disk of the disk-type spreader so that the angle with respect to the radial direction can be adjusted.   The road surface spraying device according to claim 1 or 2, wherein the scattering deflector is formed of a plastic net.   The road surface spraying device according to any one of claims 1 to 3, wherein the anti-scatter cover body is formed of a plastic net.   The road surface spraying device according to any one of claims 1 to 4, wherein the sprayed material is a gravel having a particle size of 5 to 13 mm.

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