JPS6347401A - Working machine - Google Patents

Abstract

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

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, these ballast compaction tasks were carried out by track maintenance workers using tampers, and when replacing ballast, the work involved removing and laying ballast, and then compacting it with tampers by workers or manually. This is done by

[Problems to be Solved by the Invention] However, the roadbed safety work described above is performed using a tamper, and the tamper itself is a vibrating machine and the working conditions are heavy labor. In addition, since all work is done manually, security work requires a large amount of labor, making it difficult to secure personnel and resulting in poor work efficiency.

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 provides a working machine having an upper rotating body and a lower traveling body, in which arms are provided movably at the front and rear of the lower traveling body, and two sets of rail traveling wheel units, front and rear, are provided. are attached to each other via an arm, and at least one of the two sets can be driven.

[Function] When traveling on the lower traveling body itself, set the front and rear wheel units to the ground, and when traveling on rails, fit each wheel to the rail, and further push down the arm to lower the lower traveling body to the ground. do.

[Example] The present invention will be described in detail below with reference to the drawings.

First, the present invention will be explained in detail with reference to FIG.

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

In the backhoe, as shown in the figure, an earth removal plate 3 is fixed to the tip of an arm 2 that is tiltably provided on a lower traveling body l.
The arm 2 is tilted by the 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).

A rail running wheel unit 7.8 is provided on each of the front and back earth removal plates 3.6, and one running wheel unit 8 is equipped with a drive motor and can be driven.

A boom 10 is provided on the upper revolving body 9 so as to be able to rise and fall freely, and can be raised and lowered by a boom cylinder 11, and an arm 12 rotatably provided at the tip of the boom is rotatable by an arm cylinder I3. Further, a horizontally extending bar 14 is fixed to the tip of the arm 12, and tied bars 15 are attached to both ends of the bar 14.

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

Next, in FIGS. 2 to 5, the rail traveling unit 7
．． 8 will be explained.

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

Wheel unit pedestals 16 and 16 are fixed to the back earth removal plate 6, and shaft supports 17 and 18 are attached to each pedestal 16. A hydraulic motor 19 is fixed to one shaft support I7, a rotating part of the hydraulic motor 19 is inserted through a rail running wheel 20, and an inner collar 21 of the running wheel 20 and a rotating part flange 22 are fastened with bolts 23.

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 axle 2B is fitted into the shaft fitting portion 24 of the joint flange 25 and keyed, and the other end of the axle 26 is supported by the shaft support 18 via a bearing 27. Further, the traveling wheel 28 is fitted and keyed into a portion of the other end of the axle 26 that protrudes from the shaft support 18. When the traveling wheel 28 is rotated by the hydraulic motor 19, the joint flange 25 and the axle 26 are rotated.
The running wheels 28 rotate integrally with the running wheels 20 via.

The wheel unit 7 shown in FIG. 4 is a free wheel, and pedestals 16 and 16 similar to those described above are fixed to the front earth removal plate 3, and shaft supports 18 and 1g are attached to the pedestals 1fi and 1G. Install. The shaft support 18. An axle 29 is rotatably provided on Ill via a bearing 27, and running wheels 28128 are keyed to both ends of the axle 29.

Note that the shaft support 17. +8 can be easily removed, and wheel units 7.8 can be removed from both earth removal plates 3 and 6.

Next, the operation will be explained.

When compacting the roadbed 30, a bar 14 is attached to the tip of the arm 12 as shown in FIG. 1, and tie compactors 15 are attached to the required positions of the bar 14 (in this embodiment, at both ends).

An earth removal plate cylinder 4 (one not shown) raises the arm 2.5 to keep each running wheel 20.28 off the ground. The lower traveling body 1 is driven to move to the beginning or end of a railroad crossing or rail. Rail 32 and each running wheel 20
．． After alignment with 28, the earth removal plate cylinder is extended to align each traveling wheel 20, 28 with the rail 32, and further extended to cut 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 wheels 7 and 8.

When the operator operates the hydraulic motor 19 to rotate the traveling wheels 20.28 of the wheel unit 8, the working machine can move forward or backward to a predetermined compaction area.

Further, by operating the boom cylinder 11 and the arm cylinder 13, the compaction work is performed by the tie packer 15 by raising and lowering the boom, rotating the arm, and rotating the upper revolving structure 9. This compaction work position can be changed as appropriate by running on the rails with the wheel unit 7.8, and as a result,
Compaction work can be performed at any desired location and within any desired range.

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

In addition, when performing work other than security work, such as excavation work,
By removing the side wheel unit 7.8 and replacing the working equipment at the end of the arm with a packet, it can be used as a normal backhoe.

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

Further, in both of the above two embodiments, the wheel unit is attached to the discharge plate, but in the case where the earth discharge plate 3.6 is removably attached to the arm 2.5, the wheel unit may be attached to the ff contact arm.

[Effects of the Invention] As described above, the present invention enables a working machine to run both on flat ground and on rails, and in particular, it is possible to mechanize safety work related to rails and improve the efficiency of the work. .

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view of the first embodiment of the present invention, Fig. 2 is a plan cross-sectional view of the drive side wheel unit of the embodiment, Fig. 3 is a side view of the wheel unit, and `:jX4 is a free drawing. FIG. 5 is a partially cross-sectional plan view of the wheel unit, FIG. 5 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. 1 is a lower traveling body, 2.5 is an arm, 7 and 8 are wheel units, and 9 is an upper revolving body.

Claims (1)

[Claims] 1) In a working machine having an upper rotating body and a lower traveling body, arms are provided on the front and rear of the lower traveling body so that they can be raised and lowered, and two sets of rail traveling wheel units are attached to the front and rear through the arms, respectively. A working machine characterized in that at least one of them can be driven.