JPH053482B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a working machine capable of running on rails.

[Prior Art] Generally, rails are constructed by laying ballast to create a roadbed, and then laying rails on the roadbed via sleepers.

This ballast acts as a buffer for the load acting on the rail, but in order to maintain its function and maintain the drainage function of the subgrade, it must be compacted as appropriate and must be replaced periodically.

Conventionally, track maintenance workers used tympers to compact these ballasts, and when replacing ballasts, workers removed and laid the ballast, and then compacted it using the tympers manually. It is going by.

[Problems to be Solved by the Invention] However, the above-mentioned roadbed safety work is performed using a tamper, and the tamper itself is a vibrating machine and the working conditions are heavy labor. In addition, because all work is done manually, security work requires a large amount of labor, and it is not easy to secure personnel.
Its work efficiency is also poor.

In view of these circumstances, the present invention provides a working machine that can run on rails and mechanizes rail security work.

[Means for Solving the Problems] The present invention has an upper revolving body and a lower traveling body, and an arm having an earth removal plate attached to the tip thereof is provided on the front side of the lower traveling body so as to be able to raise and lower. In the machine, a rail traveling wheel unit is removably provided on the earth removal plate on the front side, and an arm with an earth removal plate attached to the tip is provided on the rear side of the lower traveling body so as to be able to raise and lower. The present invention is characterized in that a rail traveling wheel unit is detachably provided on the earth removal plate on the rear side, and at least one of the front and rear rail traveling wheel units can be driven.

[Function] When traveling on the undercarriage itself, the front and rear wheel units are grounded, and when traveling on rails, each wheel is fitted to the rail, and the arm is further pushed down to ground the undercarriage.

[Examples] Examples of the present invention will be described below with reference to the drawings.

First, an overview of the present invention will be explained with reference to FIG.

The working machine is based on a working machine such as a backhoe having a lower traveling body and an upper revolving body, and has a rail running function added to the working machine.

As shown in the figure, in the backhoe, an earth removal plate 3 is fixed to the tip of an arm 2 which is tiltably provided on the lower traveling body 1, and the arm 2 is tilted by an earth removal plate cylinder 4. .

In carrying out the present invention, an arm 5 and an earth removal plate 6 are also provided on the back side of the lower traveling body 1, and the back side arm 5 is also tilted by an earth removal plate cylinder (not shown).

Rail running wheel units 7 and 8 are provided for the earth removal plates 3 and 6 on the front side and the back side, respectively, and one running wheel unit 8 is equipped with a drive motor so that it can be driven.

A boom 10 is provided on the upper revolving structure 9 so as to be able to rise and fall freely, and can be raised and lowered by a boom cylinder 11. An arm 12 rotatably provided at the tip of the boom is rotatable by an arm cylinder 13. Further, a horizontally extending bar 14 is fixed to the tip of the arm 12, and a tamper 15 is attached to both ends of the bar 14.

In Fig. 1, 30 indicates a roadbed, 31 indicates sleepers, and 32 indicates a rail.

Next, referring to FIGS. 2 to 5, the rail traveling units 7 and 8 will be explained.

The drive-side wheel unit 8 shown in FIGS. 2 and 3 has the following configuration.

A wheel unit pedestal 16,1 is installed on the back earth removal plate 6.
6, and attach the shaft support 1 to each pedestal 16.
Install 7 and 18. A hydraulic motor 19 is fixed to one of the shaft supports 17, and the rotating part of the hydraulic motor 19 is inserted through the rail traveling wheels 20.
Connect the inner flange 21 and the rotating part flange 22 with the bolt 23.
This is hereby concluded. Further, a joint flange 25 having a shaft fitting part 24 concentric with the hydraulic motor 19 is fixed to the inner surface of the running wheel 20. The joint flange 2
The axle 26 is fitted into the shaft fitting portion 24 of No. 5 and coupled with a key, and the other end of the axle 26 is supported by the shaft support 18 via a bearing 27. Further, a running wheel 2 is provided at the other end of the axle 26 at a portion that protrudes from the shaft support 18.
8 and make a key connection. When the running wheel 28 is rotated by the hydraulic motor 19, the running wheel 28 rotates together with the running wheel 20 via the joint flange 25 and the axle 26.

The wheel unit 7 shown in FIG.
6 and 16 are fixed to each other, and shaft supports 18 and 18 are attached to the pedestals 16 and 16. the shaft support 18;
An axle 29 is rotatably provided on the axle 18 via a bearing 27, and running wheels 28, 28 are keyed to both ends of the axle 29.

The shaft supports 17 and 18 can be easily removed from the base 16, and the wheel units 7 and 8 can be removed from both earth removal plates 3 and 6.

Next, the operation will be explained.

When compacting the subgrade 30, the arm 12
A bar 14 is attached to the tip of the bar 14 as shown in FIG. 1, and a tamper 15 is attached to the required position of the bar 14 (in this embodiment, at both ends).

With the earth removal plate cylinder 4 (one side is not shown),
Arms 2 and 5 are pulled up to keep each running wheel 20 and 28 off the ground. Drive the lower running body 1,
Move to the beginning or end of a railroad crossing or rail. After aligning the rail 32 and each traveling wheel 20, 28, the earth removal plate cylinder is extended and each traveling wheel 2
0 and 28 are fitted onto the rail 32 and further extended to ground the lower traveling body 1 and the ground (the upper surface of the rail). In this state, the working machine is supported by the front and rear wheel units 7 and 8.

The hydraulic motor 19 is driven by the driver's operation,
By rotating the running wheels 20, 28 of the wheel unit 8, the working machine can move forward or backward to a predetermined compaction area.

Furthermore, a boom cylinder 11, an arm cylinder 1
3, the compaction work by the tamper 15 is performed by raising and lowering the boom, rotating the arm, and rotating the upper revolving body 9. This compaction work position can be changed as appropriate by running on the rails using the wheel units 7 and 8, and eventually the desired location,
A desired range of compaction work can be performed.

Note that by attaching work equipment other than the tamper to the tip of the arm 12, other safety work can be performed.

Further, when performing work other than security work, such as excavation work, by removing both vehicle units 7 and 8 and replacing the work equipment at the end of the arm with a bucket, the work can be performed as a normal excavator.

FIG. 6 shows another embodiment, in which shaft supports 33, 34, 35,
36 is detachably attached, and each wheel 37, 37 is individually rotatably supported by shaft supports 33, 34 and 35, 36 via short shafts 38, 39. Furthermore, the wheels 37 are driven by connecting a hydraulic motor 40 to one of the short shafts 38.

[Effect of the invention] As described above, according to the working machine of the present invention,
By simply making a small-scale modification to an existing work machine that has an earth removal plate, it becomes possible to run both on flat ground and on rails, making it possible to mechanize security work, especially regarding rails, and improve the efficiency of this work. .

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view of a first embodiment of the present invention;
FIG. 2 is a plan sectional view of the driving side wheel unit of the embodiment, FIG. 3 is a side view of the wheel unit, FIG. 4 is a partially sectional plan view of the free wheel unit, and FIG.
The figure is a view taken along the line A--A in FIG. 4, and FIG. 6 is a plan view of another drive-side wheel unit. Reference numeral 1 indicates a lower traveling body, 2 and 5 are arms, 7 and 8 are wheel units, and 9 is an upper revolving body.

Claims (1)

[Claims] 1. In a working machine that has an upper revolving body and a lower traveling body, and is provided with an arm on the front side of the lower traveling body that is capable of raising and lowering an arm having an earth removing plate attached to the tip thereof, the earth removing plate on the front side A rail traveling wheel unit is removably provided on the lower traveling body, an arm having an earth removal plate attached to the tip thereof is provided in a movable manner on the rear side of the lower traveling body, and a rail traveling wheel unit is attached to the earth removal plate on the rear side. A working machine characterized in that the working machine is detachably provided, and at least one of the front and rear rail running wheel units can be driven.