JPH04366202A - Road bed continuous-excavator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

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

[Prior Art] Track bed replacement work in railway track maintenance work involves excavating and removing the crushed stone that has accumulated under the sleepers that support the rails, and then inserting new crushed stone. It cannot be carried out 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, 1 with a connecting fitting 3, and an excavation mechanism 5 can be moved freely along the guide plate 1 by a cylinder 4 provided on this reaction force receiver 2. A continuous roadbed excavator has been proposed in which the excavation mechanism 5 is configured to rotate a belt-shaped cutter 7 in a horizontal direction using a hydraulic motor 6.

0003

[Problem to be Solved by the Invention] Such a continuous track bed excavator is transported to the work site and set by hand, but since the whole machine is heavy, setting it up takes time and is troublesome.
Moreover, after the excavation mechanism 5 has been moved along the guide plate 1 by a predetermined stroke, it must be reset again, which makes the work very troublesome, and it is not possible to save labor or automate the track bed replacement work.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a continuous road bed excavator that can solve the above-mentioned problems.

[0005]

[Means for solving the problem] An excavation mechanism in which a mounting member is attached to the arm of a traveling vehicle, a guide roller and a support are provided on the mounting member, the support is rotatable, and a belt-shaped cutter is rotatable. The one with the .

[0006]

[Function] By rotating the excavation mechanism together with the support, it can be set under the sleepers, and by rotating the belt-shaped cutter while running the guide roller along the rail, the track bed is continuously covered while supporting the reaction force by the rail. It can be excavated and drained to the side.

[0007]

[Example] As shown in FIG. 2, the lower running body 10
An upper vehicle body 11 is provided so as to be freely pivotable by a swing mechanism 12, and a boom 13 and an arm 14 are provided on the upper vehicle body 11 so as to be vertically swingable sequentially by a boom cylinder 15 and an arm cylinder 16, thereby forming a traveling vehicle. The lower running body 10 includes a track-type running body 17 and a steel wheel 18, and runs along the rail 19 in contact with a rail 19 by swinging the steel wheel 18 downward, and runs along the rail 19 by swinging the steel wheel 18 upward. It runs on a traveling body 17, and the rails 19 are supported across sleepers 22 on a roadbed 21 on which crushed stones 20 are piled up. At the tip of the arm 14, a mounting member 23 is supported by a pin 24 so as to be able to swing up and down, and a mounting cross member 26 is supported by a pin 27 on a downward U-shaped bracket 25 provided at the bottom of the mounting member 23.
A vertically swinging cylinder 28 is connected between the mounting cross member 26 and the mounting member 23, and a downward U-shaped long case 29 is attached to the lower part of the bracket 25. is attached to the case 29, and a pair of guide rollers 30, 30 are attached to this case 29. A threaded rod 32 is screwed into a nut member 31 provided on the mounting cross member 26, and this threaded rod 32 is rotatably connected to a support 33.
When rotated by the handle 34, the support body 33 moves up and down, forming a vertical movement mechanism 35, and a horizontal swing cylinder 37 extends between the bracket 36 provided on the support body 33 and the mounting cross member 26. connected. The support body 33
A frame 38 is installed horizontally at the bottom of the
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 constitute an excavation mechanism 43, and the driving wheel 39 is driven by a hydraulic motor 44.

Next, the track bed excavation operation will be explained. With the boom cylinder 15 in a floating state, the weight of the boom 13, arm 14, etc. is placed on the rail 19 by the guide roller 30, and the support body 33 is rotated by the horizontal swing cylinder 37, so that the excavation mechanism 43 is placed in a parallel position with the rail 19. shall be. While driving the hydraulic motor 44 to rotate the belt-shaped cutter 42, the support body 33 is rotated by the horizontal swing cylinder 37, and the excavation mechanism 43 is moved to the rail 1.
9 and set it under the sleeper 22. At this time, since the excavation mechanism 43 can be rotated 90 degrees, the initial setting for excavation is facilitated. The vehicle travels while pressing the excavating mechanism 43 through the support body 33 with the vertically swinging cylinder 28, moves the excavating mechanism 43 under the sleepers 22, excavates the road bed 21, and discharges the crushed stones 20 to the side. At this time,
By slightly rocking the excavation mechanism 43, the discharge direction of the crushed stone 20 can be adjusted, and by rotating the handle 34 and moving the support body 33 up and down, the excavation depth can be adjusted according to the height of the sleeper 22. , and both side collars 45, 4 of the guide roller 30
5 can be brought into contact with both sides of the rail 19 to support the excavation reaction force, and the excavation mechanism 43 can also be tilted with respect to the horizontal to allow excavation to match a sloped roadbed.

Next, a modification will be explained. As shown in FIG. 5, the center of the support 33 may be made the same as the center of the drive wheel 39 so that it can be used even when the distance between the track side and the side ditch is narrow, or as shown in FIG. may be longer than the sleeper 22. Further, as shown in FIG. 7, the mounting cross member 26 is connected to the first and second mounting cross members 50 and 51 by a pin 52 so as to be vertically swingable, and the first mounting cross member 50 is connected to a pair of cases 29. , and each case 29 is provided with a single-flange guide roller 30 to transfer the excavation reaction force to the pair of rails 1.
It may be supported by 9 and 19. Alternatively, as shown in FIG. 8, a link 53 may be connected across the mounting member 23 and the arm 14, and this link 53 may be swung by the bucket cylinder 54. In this way, the vertically swinging cylinder 28 Not only is it possible to use the arm 14 and bucket cylinder 54 of a normal power shovel, but also the arm 14
By attaching a bucket to the tip of the machine, it is possible to perform post-processing work on the old crushed stone that has been discharged.

0010

Effects of the Invention: By swinging the arm 14 up and down, placing the guide roller 30 on the rail 19, and rotating the support body 33 while rotating the belt-shaped cutter 42, the excavating mechanism 43
can be swung from the side of the rail 19 under the sleepers, the excavation mechanism 43 can be set without using human power, and by driving the vehicle in this state, the roadbed can be continuously excavated and discharged to the side. Therefore, the track bed can be continuously excavated without requiring human power, labor saving and automation of track bed replacement work can be achieved, and the excavation reaction force can be supported by the rails 19 via the guide rollers 30.

[Brief explanation of 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 track bed excavator of the present invention.

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

FIG. 4 is a plan view showing an example of a continuous track bed excavator of the present invention.

FIG. 5 is a left side view showing a modification of the excavation mechanism attachment part 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 modification of the guide roller attachment part of the continuous road bed excavator of the present invention.

FIG. 8 is a front view showing a modification of the mounting member and the arm connecting portion of the continuous road bed excavator of the present invention.

[Explanation of symbols]

10 lower traveling body, 11 upper vehicle body, 13 boom, 14 arm, 19 rail, 21 track bed,
22 sleeper, 23 mounting member, 26 mounting cross member,
29 case, 30 guide roller, 33 support, 38 frame, 39 drive wheel, 40 driven wheel,
42 Belt-shaped cutter, 43 Excavation mechanism.

Claims (1)

[Claims] 1. A mounting member 23 is attached to an arm 14 that is vertically swingably supported on a traveling vehicle, and a guide roller 30 that runs along a rail 19 is provided on this mounting member 23.
A continuous road bed excavator characterized in that a support 33 is rotatably provided on the mounting member 23, and an excavator 43 having a belt-shaped cutter 42 rotatable in the horizontal direction is attached to the support 33.