JP7412015B2 - Crushed rock transport vehicle for track - Google Patents

Description

TECHNICAL FIELD The present invention relates to a track crushed stone transport vehicle that travels on railway rails to transport crushed stone and to spread the crushed stone.

As a track crushed stone transport vehicle that travels on railway rails to transport and scatter crushed stone, for example, it is installed between the bogie and the loading platform to collect crushed stones that fall from the loading platform through multiple discharge ports provided on the loading platform. A track-use crushed stone scattering vehicle equipped with a belt conveyor for scattering onto a roadbed has been proposed (see, for example, Patent Document 1).

Patent No. 5393578

By the way, in the above-mentioned crushed stone transport vehicle, it is usually necessary to move the orbital crushed stone transport vehicle so that the tip of the belt conveyor is located at the crushed stone distribution location, In order to accurately move the crushed stone to the scattering site, it is necessary to move the orbital crushed stone transport vehicle little by little in the vicinity of the crushed stone scattering site.

However, since the orbital crushed stone transport vehicle like the one disclosed in Patent Document 1 is loaded with crushed stones that weigh considerably, it is difficult to move the crushed stones, and the work of dispersing the crushed stones takes time and effort, resulting in poor work efficiency. There was a problem.

In particular, when the crushed stone distribution site is on a slope, it becomes even more difficult to move a track crushed stone carrier loaded with a considerable amount of crushed stone.

Therefore, the present invention was made in view of these problems, and provides a crushed stone transport for tracks that eliminates the need for small movements of the crushed stone transport vehicle for tracks in the vicinity of the crushed stone scattering site and improves the workability of scattering crushed stone. The purpose is to provide cars.

In order to solve the above-mentioned problems, a crushed stone transport vehicle for tracks according to the present invention is a crushed stone transport vehicle for tracks that loads crushed stones and travels on rails, and also scatters crushed stones at a crushed stone distribution location. a crushed stone loading box that is mounted on the conveying and spreading vehicle body and loads and discharges crushed stone; a fixed upper conveyor that moves the crushed stones to the rear end; and a fixed upper conveyor that is provided below the fixed upper conveyor so as to be slidable in the front and back direction with respect to the track crushed stone conveyor, and the crushed stone for the track is moved by the fixed upper conveyor. When the crushed stone that has been moved to the front end or rear end of the conveyor is received, the sliding lower conveyor moves the crushed stone to a position away from the front or rear end of the track crushed stone conveyor; A lower conveyor support cart is provided, which is separate from the side conveyor, is provided with wheels that run on rails, and supports a portion of the slide type lower conveyor that protrudes from the transport scattering vehicle body from below. It is characterized by
Further, in the track crushed rock transport vehicle according to the present invention, the lower conveyor support trolley includes a conveyor mount receiving trolley provided with wheels running on a rail, and a lower conveyor mount receiving trolley provided on the upper part of the conveyor mount receiving trolley. The lower conveyor contact part is raised and the lower conveyor contact part is brought into contact with the lower surface of the sliding lower conveyor to support the sliding lower conveyor from below, or the lower conveyor contact part is lowered. The present invention is also characterized by comprising a lower conveyor receiving pedestal that is moved away from the lower surface of the sliding type lower conveyor.
Furthermore, the orbital crushed stone transport vehicle according to the present invention is characterized in that the lower conveyor support truck is provided with a crushed stone spreader that scatters crushed stones conveyed by the sliding lower conveyor.
Further, in the orbital crushed rock transport vehicle according to the present invention, the length of the fixed upper conveyor in the longitudinal direction is longer than the length of the transport and scattering vehicle main body in the longitudinal direction, and the front end of the transport and scattering vehicle main body Alternatively, the sliding type lower conveyor may protrude from at least one of the rear end portions, and the length of the sliding type lower conveyor may be longer than the length of the fixed type upper conveyor.

In the orbital crushed stone transport vehicle according to the present invention, when the loaded crushed stones are discharged from the crushed stone loading box, the fixed upper conveyor receives the crushed stones and moves them to the front end or rear end of the orbital crushed rock transport vehicle. It is then dropped onto the sliding lower conveyor below the fixed upper conveyor. The sliding lower conveyor is provided so as to be slidable in the front and rear directions relative to the crushed stone transport vehicle for the track, so when it receives crushed stones that have moved to the front end or rear end of the crushed rock transport vehicle for the track, it The crushed stone is moved from the front or rear end of the crushed stone transport vehicle to the crushed stone distribution area and the crushed stone is distributed.
Therefore, the orbital crushed stone transport vehicle itself, which is quite heavy due to the load of crushed stone, is stopped near the crushed stone distribution site, and only the sliding lower conveyor can be moved a short distance to the crushed stone distribution site to spread the crushed stone. This eliminates the need for small movements of the entire track crushed stone transport vehicle, and improves the workability of crushed stone scattering.

FIG. 2 is a side view of the orbital crushed rock transport vehicle according to the embodiment of the present invention in a state where the sliding lower conveyor is accommodated and not extended. FIG. 2 is a plan view of the orbital crushed rock transport vehicle according to the embodiment of the present invention in a state where the sliding lower conveyor is accommodated and not extended. FIG. 2 is a side view of the orbital crushed rock transport vehicle according to the embodiment of the present invention in a state where the sliding lower conveyor is let out and extended. It is a top view of the state where the sliding type lower conveyor is drawn out and extended in the orbital crushed rock transport vehicle of the embodiment according to the present invention. FIG. 1 is an enlarged front view of a crushed stone carrier for a track according to an embodiment of the present invention. (a) to (c) are a plan view, a side view, and a front view, respectively, of a fixed upper conveyor constituting a crushed stone conveyor for a track according to an embodiment of the present invention. (a) to (c) are a plan view, a side view, and a front view, respectively, of a sliding lower conveyor constituting a crushed stone conveyor for a track according to an embodiment of the present invention. It is an enlarged side view of the lower conveyor support truck which constitutes the crushed stone conveyance vehicle for tracks of an embodiment concerning the present invention. It is an enlarged front view of the lower conveyor support truck which constitutes the crushed stone conveyance vehicle for tracks of an embodiment concerning the present invention. FIG. 2 is an enlarged plan view of a lower conveyor support cart that constitutes a crushed stone transport vehicle for orbit according to an embodiment of the present invention. It is a figure which shows an example of the connection state with each work vehicle at the time of towing the crushed stone conveyance vehicle 1 for tracks of embodiment which concerns on this invention, and moving it to a crushed stone distribution site. FIG. 3 is a diagram illustrating an example of a state in which the track crushed stone transport vehicle according to the embodiment of the present invention, which has been moved to the vicinity of the crushed stone distribution site, is separated from the road bed crushed stone exchange vehicle and is scattering crushed stone at the crushed stone distribution site.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a track crushed stone carrier 1 according to an embodiment of the present invention will be specifically described with reference to the drawings. The embodiment described below is merely an example of the present invention, and the orbital crushed stone carrier 1 of the embodiment according to the present invention can be modified as appropriate within the scope of the technical idea of the present invention.

<Configuration of crushed rock transport vehicle 1 for track according to embodiment>
A track crushed stone transport vehicle 1 according to an embodiment of the present invention is a work vehicle that loads crushed stones and travels on a rail, and also scatters crushed stones at a crushed stone distribution location, and includes a transportation scattering vehicle main body 11, It is configured to include a crushed stone loading box 12, a crushed stone loading box tilt mechanism 13, a fixed upper conveyor 14, a sliding lower conveyor 15, a lower conveyor support cart 16, and the like.

(Transportation scattering vehicle body 11)
The transport scattering vehicle main body 11 runs on the track rails R and R of the railroad track, and as shown in FIGS. In addition to being provided with wheels 11a, there is also a connecting section for a railway car for connecting the crushed rock transport vehicle 1 to a railway car (not shown) that pulls the crushed rock transport vehicle 1, a roadbed crushed rock replacement work vehicle (not shown), etc. 11b etc. are provided.

At the upper part of the transportation and scattering vehicle body 11, crushed stone loading boxes 12 are provided on each of the left and right sides so as to be rotatable around a rotation shaft 12a, and at the lower center of the transportation and scattering vehicle body 11, crushed stone loading boxes 12 on both the left and right sides are provided. A fixed upper conveyor 14 is fixed to transport the crushed stone from which the loading boxes 12, 12 have fallen, and a sliding lower conveyor 15 is slidable in the longitudinal direction of the transportation and scattering vehicle main body 11 below the fixed upper conveyor 14. It is set in.

In addition, on both the left and right sides of the fixed upper conveyor 14 and the sliding lower conveyor 15 in the transportation and scattering vehicle main body 11, crushed stone loading boxes 12, 12 on both left and right sides are rotated about rotation shafts 12a, 12a, respectively. Crushed stone loading box tilt mechanism parts 13, 13 are provided for dropping the crushed stones loaded in the crushed stone loading boxes 12, 12, respectively.

In addition, the length of the transportation scattering vehicle body 11 in the longitudinal direction parallel to the rail R is, for example, 5400 mm (5.4 m), and the width in the transverse direction orthogonal to the rail R is, for example, The length is 2630mm (2.63m).

(Crushed stone loading box 12)
The crushed stone loading box 12 is a box that is formed to have approximately the same length as the longitudinal length of the transportation and scattering vehicle main body 11 and is used to load crushed stone. It is provided so as to be rotatable around a rotation axis 12a provided in parallel to the traveling direction, and the crushed stone loading box tilting mechanism section 13 rotates around the rotation axis 12a while loading crushed stones. This allows the crushed stones that have been stacked at an angle to fall onto the fixed upper conveyor 14.

The left and right rotation shafts 12a are respectively provided at intervals near the center in the transverse direction of the transportation and spreading vehicle main body 11, and are located on the inside of the bottom surface of the crushed stone loading boxes 12 on the left and right sides of the transportation and spreading vehicle main body 11, respectively. are rotatably connected to each other, and when the crushed stone loading boxes 12 on both the left and right sides are rotated about the rotation shaft 12a and tilted by the crushed rock loading box tilting mechanism 13, the short side of the transport and scattering vehicle main body 11 is rotated. It is configured to drop crushed stone toward the center in the hand direction.

(Crushed stone loading box tilting mechanism part 13)
The crushed rock loading box tilting mechanism 13 is composed of cylinders 13a, etc., whose bases are rotatably fixed to the left and right sides of the upper surface of the transport and scattering vehicle main body 11, respectively, and which expands and contracts a piston 13b by applying and withdrawing hydraulic pressure from the tip side. The tips of the pistons 13b are rotatably connected to the bottom surfaces of crushed rock loading boxes 12 provided on both left and right sides of the transportation and scattering vehicle body 11, respectively.

Therefore, in the crushed stone loading box tilting mechanism section 13, oil pressure or the like is sent to the cylinder 13a to extend and retract the piston 13b, thereby rotating the crushed stone loading box 12 around the rotation axis 12a, thereby tilting the crushed rock loading box 12 as shown in FIG. , the loaded crushed stones are dropped onto a fixed upper conveyor 14 provided at the center of the transportation and scattering vehicle main body 11.

(Fixed upper conveyor 14)
As shown in FIGS. 6(a) to 6(c), the fixed upper conveyor 14 has rollers provided at the front and rear ends between a pair of roller support plates 14a, 14a, each having a length of, for example, 6000 mm (6 m). It is composed of a belt conveyor 14c passed between 14b and 14b, and is provided at the center in the transverse direction of the transportation and scattering vehicle body 11 and below the crushed stone loading boxes 12 provided on the left and right sides of the transportation and scattering vehicle body 11, respectively. It receives the crushed stones discharged from the left and right crushed stone loading boxes 12, and is operated by the rotation of a motor (not shown) etc. to transport and transport the crushed stones discharged from the left and right crushed stone loading boxes 12. It is configured so that it can move up to the front end or rear end of 11.

The total length of the fixed type upper conveyor 14 is approximately 6000 mm (6 m), which is longer than the total length of the transport scattering vehicle body 11, which is 5400 mm (5.4 m), and the front and rear ends of the fixed type upper conveyor 14 are approximately 6000 mm (6 m) long. 11 so as to protrude from each other. Here, the width of the fixed upper conveyor 14 is 700 mm, and the width of the belt 14c is 500 mm.

(Sliding lower conveyor 15)
As shown in FIGS. 7(a) to 7(c), the sliding lower conveyor 15 is provided at each of the front and rear ends between a pair of roller support plates 15a, 15a having a length of, for example, about 7000 mm (7 m). It is composed of a belt conveyor 15c passed between rollers 15b, 15b, and is installed below the fixed upper conveyor 14 so as to be able to slide up to 5000 mm (5 m) in the longitudinal direction of the transport scattering vehicle main body 11. As shown in FIGS. 3 and 4, it is configured to protrude from the front and rear ends of the transportation and scattering vehicle main body 11 by a maximum of, for example, about 5,755 mm. That is, when the sliding lower conveyor 15 receives the crushed stone that has been moved to the front end or the rear end of the transportation and scattering vehicle main body 11 by the fixed upper conveyor 14, the sliding type lower conveyor 15 moves the crushed stone to the front end or the rear end of the track crushed stone conveyor 1. The structure is such that the crushed stone can be moved up to a distance of, for example, 5,755 mm.

(Lower conveyor support cart 16)
As shown in FIGS. 3 and 4, the lower conveyor support trolley 16 runs on the rail R to support the tip of the sliding lower conveyor 15 from below, and is independent of the transportation and scattering vehicle body 11. It is configured.

That is, the lower conveyor support trolley 16 includes a conveyor mount support trolley 16a provided with wheels 16a1 running on the rail R, and a roller support plate of the sliding lower conveyor 15 provided on the upper part of the conveyor mount support trolley 16a. 15a, and a lower conveyor receiving stand 16b provided with a lower conveyor abutting portion 16b1 that abuts the lower surface of the lower conveyor 15a.

Further, a crushed stone spreader 16c that rotates horizontally by about 180 degrees and scatters crushed stone can be attached to and removed from the front end or rear end of the lower conveyor support cart 16 via a crushed stone spreader attachment part 16a2. is attached to. Therefore, it is possible to further transport crushed stone up to a maximum of, for example, about 5000 mm (5 m) from the front and rear ends of the transport and scattering vehicle main body 11 and scatter it with the crushed stone spreader 16c. For example, it is possible to omit a small movement of the orbital crushed rock transport vehicle 1 within a range of about 5000 mm (5 m).

<An example of a method for dispersing crushed stone using the track crushed stone carrier 1 according to the embodiment of the present invention>
Next, an example of a method for distributing crushed stone using the crushed stone transport vehicle 1 for track according to the embodiment of the present invention configured as described above will be described.

FIGS. 11(a) and 11(b) are a plan view and a side view, respectively, showing an example of the connection state with each work vehicle when towing the crushed stone transport vehicle 1 for the track according to the embodiment and moving it to the crushed stone distribution site. It is.

In FIG. 11, the track crushed stone transport vehicle 1 of the embodiment is connected to a road bed crushed stone exchange vehicle 2 on which a shovel car 2a and a crushed stone transport belt conveyor 2b are mounted, and the road bed crushed stone exchange vehicle 2 has a crushed stone transport belt conveyor 3a. A loaded transfer conveyor truck 3 is connected to the transfer conveyor truck 3, and a crushed stone loading dump truck 4 equipped with a crushed stone lifting elevator 4a, a crushed stone transport belt conveyor 4b, etc. is connected to the crushed stone loading dump truck 4. The rail car 5 is connected, and the rail car 5 tows these four cars and travels to the vicinity of the crushed stone scattering location.

When the track crushed stone transport vehicle 1 reaches the vicinity of the crushed stone distribution location, the crushed stone is transferred from the crushed stone loading dump truck 4 to the crushed stone transport belt conveyor of the conveyor truck 3 using the crushed stone transport belt conveyor 4a and the crushed stone transport belt conveyor 4b. 3a to the crushed stone transport belt conveyor 2b of the road bed crushed stone exchange vehicle 2. In the roadbed crushed stone exchange vehicle 2, the shovel car 2a transports crushed stone on the crushed stone conveyor belt conveyor 2b to the crushed stone loading boxes 12, 12 on both left and right sides of the track crushed stone conveyor 1 of the embodiment.

When the crushed stone loading boxes 12, 12 on both the left and right sides of the crushed stone transport vehicle 1 for tracks according to the embodiment are full or the amount of crushed stones reached is reached, the worker separates the crushed stone transport vehicle 1 for tracks according to the embodiment from the crushed rock exchange vehicle 2. Then, only the track crushed stone transport vehicle 1 of the embodiment is moved to the crushed stone distribution location.

FIGS. 12(a) and 12(b) show, respectively, that the track crushed stone transport vehicle 1 of the embodiment that has been moved to the vicinity of the crushed stone distribution site is separated from the road bed crushed stone exchange vehicle 2, and crushed stone is distributed at the crushed stone distribution site. FIG. 4 is a plan view and a side view showing an example of a state in which the vehicle is in a state where

As shown in FIGS. 12(a) and 12(b), only the crushed stone transport vehicle 1 for the track according to the embodiment is separated from the road bed crushed stone exchange vehicle 2 in the vicinity of the crushed stone distribution site, and the crushed stone is loaded onto the track according to the embodiment at the distribution site. The crushed stone transport vehicle 1 is used for transportation. When the crushed stone distribution point is reached, the crushed stone loading box tilting mechanism 13 tilts the left and right crushed stone loading boxes 12, 12 loaded with crushed stones, and drops the crushed stones onto the fixed upper conveyors 14, 14, where they are fixed. The crushed stone discharged from the crushed stone loading box 12 is moved to the front end or the rear end of the orbital crushed stone transport vehicle 1 by the rotation of the belt 14c in the fixed upper conveyor 14, and the sliding lower conveyor is operated by the fixed upper conveyor 14. The crushed stone is conveyed onto the side conveyor 15.

The sliding type lower conveyor 15 can slide about 5,000 mm (5 m) at most in the longitudinal direction of the transporting and spreading vehicle body 11 below the fixed type upper conveyor 14 with respect to the transporting and spreading vehicle main body 11. Sprinkle crushed stone while moving around the area.

In this case, since the slide type lower conveyor 15 conveys heavy crushed stones, the tip where the crushed stone spreader 16c is installed tends to fall down, but since it can be supported from below by the lower conveyor support cart 16, The sliding lower conveyor 15 can smoothly spread crushed stones without lowering the tip side where the crushed stone spreading device 16c is provided.

In particular, a crushed stone spreader 16c that rotates horizontally by about 180 degrees and spreads crushed stones is removably attached to the front end or rear end of the lower conveyor support cart 16 via a crushed stone spreader attachment part 16a2. Since it is attached, it is possible to rotate about 180 degrees and spread crushed stones by the crushed stone spreader 16c.

<Summary of the track crushed stone carrier 1 according to the embodiment of the present invention>
As explained above, the track crushed stone transport vehicle 1 according to the present invention includes a transportation and scattering vehicle body 11 that runs on rails, and a crushed stone loading box 12 that is mounted on the transportation and scattering vehicle body 11 and that loads and discharges crushed stones. , a fixed upper conveyor for moving crushed stone discharged from the crushed stone loading box 12 to the front end or the rear end of the orbital crushed stone transport vehicle 1 , and a conveyor dispersing vehicle main body 11 located below the fixed upper conveyor 14 . When the crushed stone is received by the fixed upper conveyor 14 to the front end or the rear end of the transportation and scattering vehicle main body 11, it is slidable in the front and rear directions. It includes a sliding lower conveyor 15 for moving crushed stone to a remote position, a lower conveyor support cart 16, and the like.

Therefore, it is possible to stop the orbital crushed stone transport vehicle 1 itself, which has a considerable weight due to the load of crushed stone, near the crushed stone distribution site, and to move only the sliding lower conveyor 15 a small distance to the crushed stone distribution site to scatter the crushed stone. This eliminates the need for small movements of the entire track crushed stone transport vehicle 1 loaded with crushed stones, and improves the workability of scattering crushed stones.

Further, in the orbital crushed rock conveyor 1 according to the present invention, a lower conveyor support part that supports the tip of the sliding lower conveyor 15 from below is provided separately from the sliding lower conveyor 15, It has a lower conveyor support cart 16 provided with wheels 16a1 that run on rails.

Therefore, when the sliding lower conveyor 15 is extended from the front and rear ends of the transportation and scattering vehicle main body 11 to convey and scatter crushed stones, if the tip of the sliding lower conveyor 15 falls due to the weight of the crushed stones, Since the sliding lower conveyor 15 can be supported from below by the lower conveyor support cart 16, the workability of crushed stone scattering can be improved.

In addition, in the orbital crushed rock transport vehicle 1 according to the present invention, the height of the lower conveyor contact portion 16b1 of the lower conveyor support cart 16 is lower than the height of the sliding lower conveyor 15 by a predetermined height, When crushed stones are loaded on the sliding lower conveyor 15, the sliding lower conveyor 15 is lowered by the weight of the crushed stones, and the lower surface of the sliding lower conveyor 15 comes into contact with the upper surface of the lower conveyor support cart 16 and is supported. It is configured to do so.

Therefore, before the crushed stone is transported onto the sliding lower conveyor 15, the lower conveyor support cart 16 has a maximum distance of 5000 mm (5000 mm) from the front and rear ends of the transport scattering vehicle main body 11. 5 m) Even when the lower conveyor support cart 16 is extended, the lower conveyor contact portion 16b1 of the lower conveyor support cart 16 does not come into contact with the lower surface of the sliding lower conveyor 15. It can be moved freely, and the lower conveyor support cart 16 can be stopped at any position to support the sliding lower conveyor 15, which also improves the workability of crushed stone scattering.

In the above embodiment, the lower conveyor support cart 16 that supports the tip of the sliding lower conveyor 15 from below has been described with the lower conveyor support pedestal 16b provided on the upper part of the conveyor pedestal support trolley 16a. However, the present invention is not limited thereto, and an elevating mechanism (not shown) for raising and lowering the lower conveyor receiving pedestal 16b is provided between the conveyor pedestal receiving trolley 16a and the lower conveyor receiving pedestal 16b. Of course it's good too. According to an elevating mechanism (not shown) that raises and lowers the lower conveyor receiving stand 16b, the sliding lower conveyor 15 is moved and extended by a maximum of, for example, 5000 mm (5 m) from the front and rear ends of the transport and scattering vehicle main body 11, respectively. Whether the crushed stone is conveyed or not, the lower conveyor contact portion 16b1 is attached to the lower surface of the roller support plates 15a, 15a of the sliding type lower conveyor 15 by lowering the lower conveyor receiving stand 16b. The slide type lower conveyor 15 can be moved freely along the rail R below the slide type lower conveyor 15 without contacting the slide type lower conveyor 15, and by raising the lower side conveyor receiving stand 16b, the sliding type lower conveyor 15 can be moved more reliably. Since it is also possible to maintain an optimal state such as a horizontal state, transportation and scattering of crushed stone can be carried out more smoothly.

Further, in the above embodiment, the lower conveyor support cart 16 that runs on the rail separately from the sliding lower conveyor 15 is used as the lower conveyor support part, but the present invention is not limited to this. Since it is sufficient to prevent the sliding lower conveyor 15 from descending due to the weight of the crushed stones, a pivot shaft (not shown) such as a hinge is attached to the front and rear ends of the sliding lower conveyor 15. When the front and rear ends of the sliding lower conveyor 15 are extended from the front and rear ends of the transport and scattering vehicle main body 11 by providing legs (not shown) etc. that can be rotated up and down and folded. The legs (not shown), which had been folded horizontally, are rotated (expanded) vertically, and the vertically erected legs (not shown) are used to slide the legs downward. The tip of the side conveyor 15 may be supported from below. At this time, wheels that can run on rails may be provided below the legs (not shown) or may be omitted.

1 Crushed stone transport vehicle for track 11 Transportation and spreading vehicle main body 11a Wheels 11b Connecting portion for rail car 12 Crushed stone loading box 12a Rotating shaft 13 Crushed stone loading box tilt mechanism 13a Cylinder 13b Piston 14 Fixed upper conveyor 14a Roller support plate 14b Roller 14c Belt conveyor 15 Sliding lower conveyor 15a Roller support plate 15b Roller 15c Belt conveyor 16 Lower conveyor support cart (lower conveyor support part)
16a Conveyor stand receiving trolley 16a1 Wheels 16b Lower conveyor stand 16b1 Lower conveyor contact portion 16c Crushed stone spreader 2 Road bed crushed stone exchange vehicle 2a Shovel car 2b Crushed stone conveyor belt conveyor 3 Transfer conveyor trolley 3a Crushed stone conveyor belt conveyor 4 Crushed stone loading Dump truck 5 Rail car R Rail

Claims (4)

A crushed stone transport vehicle for tracks that travels on rails loaded with crushed stone and scatters crushed stone at a crushed stone distribution location,
A transportation scattering vehicle body that runs on rails,
a crushed stone loading box that is mounted on the transportation and scattering vehicle body and loads and discharges crushed stone;
a fixed upper conveyor that moves crushed stone discharged from the crushed stone loading box to a front end or a rear end of the orbital crushed stone transport vehicle;
It is provided below the fixed upper conveyor so as to be slidable in the front-rear direction with respect to the orbital crushed stone conveyor, and is moved by the fixed upper conveyor to the front end or the rear end of the orbital crushed stone conveyor. a sliding lower conveyor that receives the crushed stone and moves the crushed stone to a position away from the front end or the rear end of the orbital crushed stone conveyor ;
A lower conveyor support cart that is separate from the sliding lower conveyor, is provided with wheels that run on rails, and supports a portion of the sliding lower conveyor that protrudes from the transportation and scattering vehicle body from below. A crushed rock transport vehicle for track use, characterized by comprising : The orbital crushed rock transport vehicle according to claim 1 ,
The lower conveyor support cart is
a conveyor mount support trolley equipped with wheels that run on rails;
The lower conveyor contact part provided on the upper part of the conveyor frame receiving trolley is raised, and the lower conveyor contact part is brought into contact with the lower surface of the sliding type lower conveyor to move the sliding type lower conveyor from below. A crushed rock transport vehicle for a track, comprising a lower conveyor receiving frame that supports the lower conveyor and lowers the lower conveyor contact portion to separate it from the lower surface of the sliding lower conveyor. In the orbital crushed rock transport vehicle according to claim 1 or 2 ,
A crushed stone transport vehicle for a track, characterized in that the lower conveyor support truck is provided with a crushed stone spreader for scattering crushed stones conveyed by the sliding lower conveyor. In the orbital crushed rock transport vehicle according to any one of claims 1 to 3 ,
The fixed upper conveyor has a longitudinal length longer than the longitudinal length of the transportation and scattering vehicle body, and protrudes from at least one of a front end and a rear end of the transportation and scattering vehicle body,
The crushed stone conveyor for orbit is characterized in that the length in the longitudinal direction of the sliding type lower conveyor is longer than the length in the longitudinal direction of the fixed type upper conveyor.

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