JP2943086B2 - Roadbed continuous excavator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous track bed excavator used for track bed replacement work in railway track maintenance work.

[0002]

2. Description of the Related Art Roadbed replacement work in railway track maintenance work involves excavating and discharging crushed stones deposited under a sleeper that supports rails, and introducing new crushed stones. It cannot be performed using a power shovel or the like. Therefore, a continuous roadbed excavator as shown in FIG. 1 has been proposed. That is, as shown in FIG. 1, a reaction force receiver 2 is attached to a pair of guide plates 1 and 1 with a connection fitting 3, and an excavating mechanism 5 is movable along the guide plate 1 by a cylinder 4 provided on the reaction force receiver 2. A roadbed continuous excavator in which the excavating mechanism 5 is configured to rotate the belt-shaped cutter 7 in a horizontal plane direction by a hydraulic motor 6 has been proposed.

[0003]

Such a continuous roadbed excavator is transported to a work site and set manually, but since the whole is heavy, it takes time to set and is troublesome.
Moreover, when the excavating mechanism 5 is moved along the guide plate 1 by a predetermined stroke, it is reset, so that the operation is very troublesome, and the roadbed changing operation cannot be labor-saving and automated.

Accordingly, an object of the present invention is to provide a continuous roadbed excavator capable of solving the above-mentioned problems.

[0005]

Means for Solving the Problems Up and down swingable arm 1
4, a mounting member 23 mounted on the arm 14, a mounting cross member 26 mounted on the mounting member 23 to be able to swing up and down, and a connection across the mounting member 23 and the mounting cross member 26. A vertically swingable cylinder 28, a support 33 attached to the mounting cross member 26 so as to be movable in the vertical direction and swingable in the horizontal direction, and a support member 33 mounted to the mounting cross member 26, and Vertical movement mechanism 3 that moves in the direction
5, a horizontal swing cylinder 37 mounted on the mounting cross member 26 and horizontally swinging the support 33, and an excavating mechanism mounted on the support 33 and enabling the belt-shaped cutter 42 to freely rotate in the horizontal direction. 43. A continuous roadbed excavator comprising: 43; and a guide roller 30 attached to the attachment member 23 and in contact with the rail 19.

[0006]

The mounting member can be supported by the rail by swinging the arm up and down to describe the guide roller on the rail. The excavating mechanism 43 can be swung in the horizontal direction by the horizontal swing cylinder 37. As a result, the arm 14 is swung up and down to move the guide roller 30 to the rail 19.
The excavating mechanism 43 can be swung under the sleepers from the side of the rail 19 by swinging horizontally while rotating the belt-shaped cutter 42 while rotating the belt-shaped cutter 42, and the excavating mechanism 43 can be set without using human power. By running the traveling vehicle in that state, the roadbed can be continuously excavated and discharged to the side, so that the roadbed can be continuously excavated without the need for human power, and the work of replacing the roadbed can be labor-saving and automated. , Excavation reaction force to guide roller 30
Can be supported by the rail 19. Vertical swing cylinder 2
In FIG. 8, the excavating mechanism 43 is swung downward by swinging the mounting cross member 26.
Can swing downward. Thus, the excavation mechanism 43 can be excavated while being pressed against the roadbed, and the excavation mechanism 43 does not rise due to excavation reaction force or the like. Vertical movement mechanism 35
The excavating mechanism 43 moves up and down by moving the support 33 up and down with. Thereby, the excavation depth of the excavation mechanism 43 can be adjusted.

[0007]

As shown in FIG. 2, an upper body 11 is rotatably provided on a lower traveling body 10 by a turning mechanism 12, and a boom 13 and an arm 14 are provided on the upper body 11 with a boom cylinder 15 and an arm cylinder 16 respectively. The lower traveling body 10 is provided with a crawler-type traveling body 17 and an iron wheel 18, and swings the iron wheel 18 downward to contact the rail 19 and contact the rail 19. The rails 19 swing upward and run on the crawler-type traveling body 17. The rails 19 are supported between the sleepers 22 on the roadbed 21 on which the crushed stones 20 are deposited. . A mounting member 23 is supported on the distal end of the arm 14 by a pin 24 so as to be able to swing up and down. A mounting U-shaped bracket 25 provided below the mounting member 23 has a mounting cross member 26 vertically moved by a pin 27. A vertically oscillating cylinder 28 is connected between the mounting cross member 26 and the mounting member 23 so as to be swingable.
The case 29 has a pair of guide rollers 30 attached thereto. A screw rod 32 is screwed into a nut member 31 provided on the mounting cross member 26, and the screw rod 3
2 is rotatably connected to a support 33, and when the screw rod 32 is rotated by a handle 34, the support 33 moves up and down to form a vertical movement mechanism 35, and a bracket 36 provided on the support 33 is provided. A horizontal swing cylinder 37 is connected to the mounting cross member 26. A frame 38 is mounted below the support 33 in the horizontal direction, and a belt-shaped cutter 42 is wound around a driving wheel 39, a driven wheel 40, and a guide roller 41 provided on the frame 38 to form an excavating mechanism 43. The drive wheels 39 are driven by a hydraulic motor 44.

Next, a roadbed excavation operation will be described. With the boom cylinder 15 in a floating state, the boom 13, the arm 14, etc., is mounted on the rail 19 by the guide roller 30 by its own weight, and the support 33 is rotated by the horizontal swinging cylinder 37 so that the excavating mechanism 43 is in a posture parallel to the rail 19. And While the hydraulic motor 44 is driven to rotate the belt-shaped cutter 42, the support 33 is rotated by the horizontal swing cylinder 37 to move the excavating mechanism 43 to the rail 1.
It moves under the sleeper 22 as a posture perpendicular to 9 and is set. At this time, since the excavating mechanism 43 can be rotated by 90 degrees, setting at the beginning of excavation becomes easy. The traveling vehicle travels while pushing the excavating mechanism 43 through the support 33 with the vertically oscillating cylinder 28 to move the excavating mechanism 43 under the sleepers 22 to excavate the roadbed 21 and discharge the crushed stones 20 to the side. At this time,
By slightly rocking the excavating mechanism 43, the discharging direction of the crushed stone 20 can be adjusted, and the excavation depth can be adjusted according to the height of the sleeper 22 by rotating the handle 34 and moving the support 33 up and down. And both side flanges 45, 4 of the guide roller 30
The excavation reaction force can be supported by abutting the rails 5 on both side surfaces of the rail 19, and the excavation mechanism 43 can be inclined obliquely with respect to the horizontal to excavate along the sloped roadbed.

Next, a modification will be described. The center of the support 33 may be the same as the center of the drive wheel 39 as shown in FIG. 5 so that it can be used even when the distance between the side of the track and the side groove is narrow, or as shown in FIG. May be longer than the sleeper 22. As shown in FIG. 7, the mounting cross member 26 is connected to the first and second mounting cross members 50 and 51 by pins 52 so as to be vertically swingable. And a single-sided guide roller 30 is provided in each case 29 to reduce the excavation reaction force by a pair of rails 1.
9, and 19 may be supported.

[0010]

The mounting member 23 can be supported by the rail 19 by swinging the arm 14 up and down to describe the guide roller 30 on the rail 19. The excavating mechanism 43 can be swung in the horizontal direction by the horizontal swing cylinder 37. As a result, the arm 14 is swung up and down to move the guide roller 30 to the rail 1.
9 and swinging in the horizontal direction while rotating the belt-shaped cutter 42, the excavating mechanism 43 can be swung under the sleepers from the side of the rail 19, and the excavating mechanism 43 can be used without human power.
It is possible to continuously excavate the roadbed and discharge it to the side by running the traveling vehicle in that state, so it is possible to continuously excavate the roadbed without the need for human power and to save the labor of replacing the roadbed Can be automated, and excavation reaction force can be
0 can be supported by the rail 19. By oscillating the mounting cross member 26 downward with the vertical oscillating cylinder 28, the excavating mechanism 4
3 can be swung down. Thus, the excavation mechanism 43 can be excavated while being pressed against the roadbed, and the excavation mechanism 43 does not rise due to excavation reaction force or the like. Vertical movement mechanism 3
By moving the support 33 up and down at 5, the excavating mechanism 43 moves up and down. Thereby, the excavation depth of the excavation mechanism 43 can be adjusted.

[Brief description of the drawings]

FIG. 1 is a plan view of a conventional roadbed continuous excavator.

FIG. 2 is a front view showing an example of a continuous roadbed excavator according to the present invention.

FIG. 3 is a left side view showing an example of the continuous roadbed excavator of the present invention.

FIG. 4 is a plan view showing an example of a continuous roadbed excavator according to the present invention.

FIG. 5 is a left side view showing a modified example of the excavation mechanism mounting portion of the continuous roadbed excavator of the present invention.

FIG. 6 is a left side view showing a modification of the excavation mechanism of the continuous roadbed excavator of the present invention.

FIG. 7 is a left side view showing a modified example of the guide roller mounting portion of the continuous roadbed excavator of the present invention.

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-57-169102 (JP, A) JP-A-61-134402 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) E01B 27/04

Claims (1)

(57) [Claims] 1. Traveling provided with an arm 14 which can swing up and down.
A vehicle, a mounting member 23 mounted on the arm 14, and a mounting cross member 2 mounted on the mounting member 23 so as to be vertically swingable.
6, the upper and lower parts connected across the mounting member 23 and the mounting cross member 26.
The oscillating cylinder 28 and the mounting cross member 26 can be moved vertically, and
A supporting member 33 slidably mounted in the direction, and the supporting member 33 mounted on the mounting cross member 26 and
A vertical moving mechanism 35 that moves in the direction
A horizontal swing cylinder 37, the belt-shaped cutter 42 attached to the support member 33 horizontally swings direction
An excavating mechanism 43 rotatable in a direction, and a gasket mounted on the mounting member 23 and in contact with the rail 19.
Roadbed continuation characterized by having an idling roller 30
Excavator.