JP2534550B2 - Roadbed replacement method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a work method for replacing a roadbed.

[Conventional technology]

Japanese Patent Publication No.
As disclosed in the publication, there is a system in which a scrap conveyor and a waist conveyor are arranged on a track exchanging track, and an empty trolley and a gravel loading trolley are sequentially moved on adjacent tracks.

Japanese Patent Laid-Open No. 169101/1982 discloses an orbital motor equipped with an excavator to pull a trolley to excavate a ditch on a roadbed.

[Problems to be Solved by the Invention]

The technology disclosed in the above Japanese Patent Publication No. 51-43642,
The trolley's rolling stock was large, and the conveyor system was so large that it was impossible to escape in an emergency.
In addition, it has a structure with only double tracks, so it was impossible to replace the track with a single track.

Further, the technique disclosed in Japanese Patent Laid-Open No. 57-169101 is only suitable for excavating a ditch on a roadbed, and the excavator cannot rotate 360 degrees, which is unsuitable for roadbed replacement work.

The present invention has been made in view of the above circumstances, and the purpose thereof is to enable simultaneous work of excavating a roadbed in the same track and carrying out waste gravel, loading new gravel, and leveling. Roadbed exchange can be easily performed. In addition, it becomes easier to escape in an emergency, and by combining the machine in charge of excavation and the machine in charge of transportation, it is possible to work on a single line,
Furthermore, a trolley and a rail car can be used as a transportation vehicle, and it is an object of the present invention to provide a method for exchanging a roadbed that can be owned by a contractor and can reduce user costs.

[Means and Actions for Solving the Problems]

In order to achieve the above-mentioned object, the present invention is provided with a working machine capable of excavating gravel and laying down and laying gravel on a rail whose roadbed is to be replaced, and two self-propelled vehicles on the rail. The railroad work vehicle and the gravel transport vehicle capable of dumping are loaded, one railroad work vehicle is in charge of excavation of the roadbed and loading of waste gravel, and the other railroad work vehicle is loaded with gravel of new gravel. Loading the vehicle and moving this gravel transport vehicle to the location where the roadbed excavation has been completed to unload the new gravel, and let the gravel laying work be performed to replace the roadbed.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

1 to 4 show a wheel-type track work vehicle A.

The track work vehicle A includes a vehicle body 1, and the vehicle body 1 includes front and rear traveling wheels 2 and 3 and a drive system 4 for the traveling wheels 2 and 3. The front traveling wheel 2 is supported by a front axle mechanism 5, and the front axle mechanism 5 is attached to a support body 6 fixed to the front end portion of the vehicle body 1 by an axle pin 7 to swing the axle pin 7. It is used as a fulcrum. The vehicle body 1 is provided with an actuator 8 for controlling the swing of the front axle mechanism 5. The running wheels 2,
A wheel body 3 is attached to the inside of the tire 9. The vehicle body 1 is provided with a revolving structure 12 via a revolving mechanism 11, and the revolving structure 12 is provided with a working machine 13, a driver's seat 14 and a control system 15. The working machine 13 includes a boom 16, an arm 17, a bucket 18, and operating cylinders 19, 20, 21 of the boom 16, the arm 17, and the bucket 18, respectively.

Bases of left and right support arms 22 and 22 'are mounted on the front axle mechanism 5 so as to be vertically swingable.
A horizontal rod 23 is attached to the tips of the 2, 22 '. This horizontal rod 23
Engagement pieces 24 and 25 are provided on both side portions by pins 26 so as to be set upward (when traveling) and downward (when working).
Also, 27 is a hydraulic cylinder, and this hydraulic cylinder 27 is attached at an angle between the vehicle body 1 and the horizontal rod 23,
When the spindle of the hydraulic cylinder 27 contracts, the side of the horizontal rod 23 is lifted, and when it is expanded, it is lowered.

FIG. 3 shows an orbital work vehicle A under work. The track work vehicle A is traveled on the rail 29 of the roadbed 28 to the site with the wheel body 10 and the hydraulic cylinder 27 is operated to disengage the engaging pieces 24, 25 on the left and right sides of the sleeper 30. Work is performed while being prevented from being hooked and moved forward by the reaction force of the bucket 18.

Further, the sleeper 30 floating on the rail 29 is moved freely while being pushed in the direction of the arrow by the engaging pieces 24, 25 as shown in FIG.

5 to 7 show a crawler-type track work vehicle B.

The track work vehicle B includes an engine-driven work vehicle 31. The work vehicle 31 includes a rubber crawler 3 for traveling.
It is equipped with 2,32 '. The traveling crawlers 32, 32 'are substantially the same width as the rail 29. Work vehicle 31 is swivel 33
It is equipped with a boom 34, arm 35,
A bucket 36 and a working machine 40 having these operating cylinders 37, 38, 39, a driver's seat 41, and a control system 42 are provided. A front wheel mechanism E and a front undulating operation mechanism F are provided at the front end of the work vehicle 31.

The front wheel mechanism E includes support arms 44, 44 'attached to the left and right support brackets 43, 43' at the front end of the work vehicle 31 with shaft pins 45, 45 '. These support arms 44, 4'
A support member 46 is attached to the tip of 4 ',
Wheels 47 are provided at both ends of 6 so that they can be turned by 90 ° by a turning device 48.

Further, the front-side up-and-down actuating mechanism F is provided with a hydraulic cylinder 51 attached to a cylinder support bracket 49 at the center of the front end of the work vehicle 31 with a pin 50, and a piston rod 52 of the hydraulic cylinder 51 is provided on a cross member 46 '. It is attached to bracket 53 with pin 54.

At the rear end of the work vehicle 31, there are provided a rear wheel mechanism E ′ having the same structure as the front wheel mechanism E, and a rear undulating operation mechanism F ′ having the same structure as the front undulating operation mechanism F.

Further, the front wheel mechanism E is provided with a manual hydraulic pump 55.

The hydraulic pump 55 and the hydraulic cylinders 51, 51 'are connected via pipes 57, 58.

Then, the track work vehicle B carried to the track invasion place by a truck or the like uses the traveling crawlers 32, 32 'to rail 29.
Get in parallel with each other, align each wheel 47 on the rail 29, and then operate the hydraulic cylinders 51, 51 'to operate the front and rear wheel mechanisms.
E, E ′ are lowered and the wheel 47 is engaged with the rail 29. By driving the traveling crawlers 32, 32 'in this state, the track work vehicle B travels on the rail 29 while being guided by the wheels 47.

Further, when the track work vehicle B is desired to travel on the rail 29 quickly, the hydraulic cylinders 51 and 51 'are extended to rotate the front and rear wheel mechanisms E and E'downward as shown in FIG. The work vehicle 31 is moved to lift the work crawlers 32, 32 ', and the track work vehicle B is supported only by the wheels 47, and the work vehicle 31 is towed by a motor car or a track car.

 Next, the replacement work of the track bed will be explained.

The crawler-type track work vehicle B, which is excellent in stability during excavation work, is mounted on the rail 29 for roadbed excavation. A dump truck C and a conveyor belt conveyor device D stand by on a side road 60 on the side of the rail 29 (see FIG. 8).

Therefore, the work implement 40 of the track work vehicle B is operated to perform roadbed excavation, and the waste gravel generated by the roadbed excavation is loaded on the dump truck C by the conveyor belt conveyor device D.

On the other hand, a wheel type track work vehicle A and a trolley G as a gravel transport vehicle, which have a higher vehicle speed than the crawler type track work vehicle B, are combined, and these are combined.
At the new gravel loading place H, the working machine 13 is operated to load the new gravel onto the trolley G at the new gravel loading location H.

As shown in FIG. 9, the trolley G is transferred by the track work vehicle A to the above-mentioned roadbed excavation site J, and the dump operation of the trolley G drops the new gravel to the roadbed excavation site J.
By operating the working machine 13, the engaging pieces 24, 25, etc., the new gravel is laid in a predetermined roadbed shape.

Next, the wheel-type track work vehicle A pulls the empty trolley G, returns to the new gravel loading place H again, and loads new gravel on the trolley G.

In the above-mentioned method of exchanging the track bed, a rail car G'may be used instead of the trolley G as shown in FIG. 10, or the belt conveyor device D for transferring waste gravel and the dump truck C may be used. Alternatively, as shown in FIG. 11, the crawler-type track work vehicle B may pull the trolley G to load the waste gravel into the trolley G to carry the waste gravel.

Further, the laying work of the new gravel performed by the wheel-type track work vehicle A may be assisted by operating the work machine 40 of the crawler-type track work vehicle B as necessary.

〔The invention's effect〕

As described in detail above, the method for exchanging a roadbed according to the present invention is such that the gravel is excavated on the rail for which the roadbed is to be replaced,
In addition to being equipped with a working machine that can perform loading and laying work,
Two self-propelled rail track vehicles and a gravel transport vehicle capable of dumping are loaded, one track truck is responsible for excavating the roadbed and loading waste gravel, and the other The orbital work vehicle is characterized by loading new gravel onto a gravel transport vehicle, moving this gravel transport vehicle to the location where the roadbed excavation is completed, unloading new gravel, and laying out the new gravel. It is what

Therefore, since two orbital work vehicles are used, it is possible to excavate the roadbed, carry out the waste gravel, load new gravel, and level the gravel on the same track, so that the roadbed can be easily replaced. Two orbital work vehicles, one of which is used as a machine in charge of excavating and discharging roadbeds and the other as a machine in charge of transportation of new gravel and laying work, etc. Since parallel work is possible, and each track work vehicle is light in weight by itself and is self-propelled, it is easy to escape from the track in an emergency.

Also, by combining the machine in charge of excavation, discharge work, etc. and the machine in charge of transport laying work etc., only the rail of the bedbed to be replaced is used, so it is possible to work on a single rail. , Trolleys and rail cars can be used as transportation vehicles, and these vehicles can be owned by the contractor, and user costs can be reduced.

[Brief description of drawings]

FIG. 1 is a side view of a wheel-type track work vehicle, FIG. 2 is a plan view in which the same parts are omitted, FIGS. 3 and 4 are explanatory views of the same working state, and FIG. 5 is a crawler-type track work vehicle. Side view of the sixth
FIG. 7 is a plan view with the same parts omitted, FIG. 7 is an explanatory view of the same traveling state, FIG. 8 is an explanatory view of the method of the present invention, FIG. 9 is an explanatory view of roadbed excavation and transportation using a trolley, and FIG. FIG. 11 is an explanatory diagram of roadbed excavation and transportation using a railroad vehicle, and FIG. 11 is an explanatory diagram of roadbed excavation using a trolley. A and B are track work vehicles, C is a dump truck, D is a conveyor belt conveyor device, and G is a trolley.

Claims (1)

(57) [Claims] 1. A work machine capable of excavating gravel and laying and laying gravel on a rail on which a roadbed is to be replaced, and two track work vehicles capable of self-propelled on the rail and a dump truck. Enter the gravel transport vehicle that enabled the operation,
One track work vehicle is responsible for excavation of the roadbed and loading of waste gravel, and the other track work car is loaded into the gravel transport vehicle of the new gravel, and this gravel transport vehicle is moved to the location where the roadbed excavation is completed. The method of exchanging the roadbed is characterized by lowering the new gravel and laying the new gravel.