JPH04179701A - Track repairing machine - Google Patents

Abstract

PURPOSE:To improve workability by a method wherein a dozer is equipped on the lower edge thereof with slits to which rails can be fitted, and guide rollers that can touch at the rails are provided to the rear face of the dozer. CONSTITUTION:For grading of gravels or the like, a dozer 23 is lowered and is made to bestride rails 18 by slits 24 and guide rollers 25 which are adjustable in height relative to the dozer 23 are placed on the rails 18. Then the machine is made to travel and the grading of the track is made with the lower end of the dozer 23.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a track repair work machine used for repairing tracks for railway vehicles.

[Conventional technology] In order to ensure safe running of railway vehicles, the tracks of railway vehicles are
Frequently inspected and repaired. Track repair involves repairing the gravel on the embankment that forms the foundation, replacing sleepers, and replacing rails, all of which are heavy labor. Additionally, track repair work is carried out during times when vehicles are not running, usually at night, and the work time is short.

Therefore, the above-mentioned repair work must be carried out efficiently within a short period of time, which forces the operator to perform heavy labor.

Various types of work and industrial machinery are used to improve working conditions.

For example, when flattening the surface of a track, a work machine equipped with a dozer is used.

[Problems to be Solved by the Invention] The dozer (1) installed in the conventional working machine (4) has a dozer (1) as shown in FIG. 11 in order to level the ground surface without digging it. The lower surface of the dozer (1) is formed into a straight line. Therefore, when leveling the surface of the track (2) over its entire width, the rails (3) (3) get in the way of the work, and conventionally, the dozer (
1), first level the space between the rails (3) and (3), then level the outer surface of the remaining rails (3) and (3) with another work machine, or level it manually by the worker. was.

Therefore, the number of man-hours required is large, the land leveling work requires a long time, and moreover, a large amount of mechanical equipment and manpower are required, and the work burden on the workers is extremely heavy.

The present invention aims to provide a working machine that can level the surface of a track over its entire width without being obstructed by the rail.

[Means for Solving the Problems] In the present invention, slits are formed on both sides of the lower surface of the dozer to straddle the rails of the track, and guide rollers that come into contact with the rails are installed on the back surface of the dozer.

[Operation] When the dozer is lowered onto the track, the work machine with the above structure straddles the slit formed in the dozer or the rail, so the lower surface of the dozer reaches the surface of the track without being obstructed by the rail.
By moving as is, the surface of the track can be leveled over the entire width at once.

[Example] Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 10.

As shown in FIGS. 1 to 3, the working machine has a structure in which an upper rotating body (12) is rotatably mounted on a crawler type lower traveling body (11).

The lower traveling body (11) is equipped with crawler belts (16) on both sides of a base frame (13) via raceway rings (14) and idler wheels (I5). Crawler Held (16)
has a large number of track links (as shown in Figures 4 and 5).
(not shown) are connected endlessly, and the crawl runny (17) is bolted one by one to the track link. The crawler shoe (17) has a groove (19) formed on its outer peripheral surface into which the track rail (18) is inserted. This groove (19) has protrusions (2) on the inside and outside of the outer peripheral surface of the crawler shoe (17).
0) (21) are formed by providing them at appropriate intervals.

Each of the protrusions (20) (21) is a crawler shoe (1).
7) may be welded or bolted.

Further, a dozer (23) is attached to the lower traveling body (11) of the working machine via a lift arm (22) behind the base frame (13). As shown in Figures 6 and 7, the dozer (23) has approximately the same width as the embankment on which the rails (18) (18) are laid, and has a width dimension that is approximately the same as the working surface (23a).
) is formed into an arcuate surface so that soil etc. can be scooped up, and the lower edge is formed into a straight line.

In addition, slits (24) (24) are formed at an appropriate height from the lower edge of the dozer (23) in correspondence with the rails (18), and the dozer (24) is inserted into the slits (24) (24).
3) Guide roller (25) to set the height of (25)
are arranged, and when the dozer (23) is tilted by a tilt mechanism (not shown) and lowered onto the rails (18) (18), the rails (18) (18) are placed in the slits (24) (24). enters and the guide roller (25) (2
5) hits the rail (18) (18) and the dozer (
23).

As shown in FIG. 7, the guide roller (25) is connected to the dozer (
Attach the roller mounting bracket (26) to the back side of the roller mounting bracket (23) with bolts (27) so that the height can be adjusted, and then attach the support pieces (26a) of the roller mounting bracket (26) (26a
) is rotatably mounted between the lower ends of the The roller mounting bracket (26) has, for example, five bolt insertion holes (28) (28) formed in the flange portion (26b), and three bolt holes (not shown) on the dozer (23) side. , and by changing the arrangement of the roller mounting bracket (26) to the dozer (23) and reconnecting it with the bolt (27), the guide roller (
25) and, as a result, the height of the dozer (23) relative to the rail (18) (18). Usually, the dozer (23)
Guide roller (25) (25) is the rail (18)
(18), the lower edge of the rail (18)
(18) is positioned slightly above the dog nail fixing it.

On the upper revolving structure (12) is a driver's seat (29) where the worker sits.
and various operation levers (3) in front of the driver's seat (29).
0) is provided.

Further, the base of a hoisting arm (31) is pivotally attached to the side of the driver's seat of the upper revolving body (12) so as to be able to rise and fall freely.
) between the tip of the upper rotating body (12) and the undulating cylinder (
32) are connected to each other so that the undulation arm (31) can be undulated by the extension and contraction operation of the undulation cylinder (32). The rear part of an intermediate arm (33) is pivotally attached to the tip of the undulating arm (31) so as to be able to swing freely in the left and right direction.
) is pivotally attached to the tip of the support arm (34) so as to be able to swing freely in the left-right direction, and the support arm (34) is pivoted to the tip of the intermediate arm (33).
) are pivotally mounted so that they can swing freely in the left and right directions. Lifting arm (
The first and second connecting arms (37) are attached on both sides of the tip of 31).
(38) is provided protrudingly, third and fourth connecting arms (37) (38) are provided protrudingly on both sides of the tip of the support arm (34), and the first connecting arm (35) and the third connecting arm (37) are provided protrudingly. are connected by a link rod (39), and the second connection arm (36) and fourth connection arm (38) are connected by a link cylinder (40). Therefore, the first and second connecting arms (35) (36) provided on the undulating arm (31), the third and fourth connecting arms (37) (38) provided on the support arm (34), and the link A link mechanism is composed of a rod (39) and a link cylinder (40), and when the link cylinder (40) expands and contracts, the intermediate arm (
33) swings in the left-right direction about the pivot point with the up-and-down arm (31), and the support arm (34) also moves parallel to the left and right. At the tip of the support arm (34) is a work arm ( 41) The rear end of the support arm (34) is pivotally mounted so that it can be raised and lowered, and the working tool (42) is attached to the tip of the work arm (41) so that it can be raised and lowered.The rear end of the support arm (34) and the work arm (41) The second undulating cylinder (4
3), raise and lower the work arm (41) and raise and lower the work arm (41).
41) The working implement (42) is raised and lowered by the third raising and lowering cylinder (44) connected between the rear end and the upper end of the working implement (42).

The work tool (42) is, for example, a shelf, and support plates (45) (4) are provided on both sides of the tip of the work arm (41).
5) in a swingable manner, and support plates (45) (45
) A pair of packets (46) (46) are attached to the lower ends of the supporting plates (45) (46) so as to be swingable facing each other.
Opening/closing cylinders (49) (49) are connected between the opening/closing cylinders (49) (49) and the packets (46) (46), respectively, and the expanding and contracting movements of the opening/closing cylinders (49) (49) open the packet (
46) (46) is opened and closed. The opening/closing cylinders (49) (49) can be operated independently.

The packets (46) have the same structure and are arranged symmetrically, and as shown in FIGS. 8 and 9, the bottom surface (46a) has a fan-shaped cross section with an arcuate surface, and the opposing surface on the center side is It's open. Further, an escape groove (47) is formed in the widthwise central portion of the bottom surface (46a) in the front-rear direction from the open end side.

This relief groove (47) is slightly wider than the rail (18),
Moreover, even when the closed packet (29) reaches the ground, it is formed to a position where it does not hit the rail (18). Furthermore, a movable lid (48) that closes the relief groove (47) is attached to the inner surface of the bottom surface (46a) of the bucket (46).

The movable lid (48) is equipped with, for example, two types of long and short leaf springs (48a).
) (48b), superimpose the short leaf spring (48b) on the inside of the long leaf spring (48a), align all edges, and place the ends of the aligned portions on the bottom surface (4) of the packet (46).
6a), and is attached by bolting to the bottom surface (46a), and the relief groove (47) is closed with a long plate spring (48a). When the packet (46) is separated from the rail (18), the movable lid (48) is in close contact with the bottom surface (46a) by its own elastic force, and the packet (46)
When the rail (18) is placed over the rail (18) and the rail (18) enters the relief groove (47), it is pushed by the rail (18) and bends.
The movement of the packet (46) is not obstructed.

Expansion and contraction of the hoisting cylinder (32) and link cylinder (40), second hoisting cylinder (43), third hoisting cylinder (44), opening/closing cylinder (49) (49) in the above working machine, and tilt mechanism of the dozer (23) Furthermore, the turning operation of the upper revolving body (12), the drive of the crawler belt (16) (16) of the lower traveling body (11), etc. are all controlled by various controls installed in front of the driver's seat of the upper revolving body (12). Operation lever (
30).

The above working machine has a crawler belt (
Groove (19) (19) formed in (16) (16)
) is fitted onto the rail (18) (18) and the track is repaired while traveling on the crawl label.

When leveling gravel, etc. as part of repair work, a dozer (2
3) is lowered to straddle the rails (18) (18) with the slits (24) (24), and the guide rollers (25) (25) are placed on the rails (18) (18). Run the work machine with the dozer (24
) Level the ground at the lower edge of the area. During this work, slit (24
) (24), move the dozer (23) to the rail (18) (
The height of the dozer (23) is adjusted by the guide rollers (25) (25), so the area around the rail (18) (18) can be leveled at once. can.

When removing gravel around the rail (18) (18) as part of repair work, operate the various operation levers (30) as appropriate to remove the undulation cylinder (32) and link cylinder (4).
0), the second undulation cylinder (43), the third undulation cylinder (44), and the opening/closing cylinder (49) (49) are expanded and contracted as appropriate to direct the shell packet (42) downward,
Bring the packet (46) (46) open to the excavation position, then close the packet (46) (46), grab an appropriate amount of gravel, bring the grabbed gravel to the discharge position, and then remove the packet. (46) Open (46) and discharge the gravel.

If you want to supply gravel around the rail (18) (18), do the opposite of the above and fill it with shell packets (42).
) The gravel picked up by the rails (18) is dropped and supplied around the rails (18).

During the above work, when the shell bucket L-(42) moves in the left-right direction, it moves in parallel to the left and right by the link mechanism constructed between the hoisting arm (31) and the support arm (34). ) and the rail (18), and each packet (46) of the shell packet (42) (46) is connected to the relief groove (47).
(47) can be used to straddle the rail (18) and both sides of the rail (18) can be repaired at the same time. Also, the relief groove (47) of the packet (46) (46) (
A movable cover (48) is attached to the inside of the cover (47), and when no external force is applied, the movable cover (48) moves into the relief groove (47).
), so gravel, etc., will not fall through the relief groove (47).

In addition, as shown in FIG. 10, the dozer (23) is formed to have a width wider than the track, and both ends (23b) of its lower surface
If (23b) is inclined along the side surface of the track (49), the surface and side surface of the track (49) can be leveled at the same time.

[Effects of the Invention] According to the present invention, the dozer can be placed inside and outside the rail on the track, and the surface of the track can be leveled over the entire width at once, improving work efficiency. It is possible to significantly improve the performance, significantly shorten the working time, and reduce the work burden on the worker.

[Brief explanation of drawings]

Fig. 1 is a side view of a working machine according to the present invention, Fig. 2 is a plan view of the working machine, Fig. 3 is a front view of the working machine, Fig. 4 is an enlarged perspective view of a crawler shoe, and Fig. 5 is a crawler shoe. A perspective view of the main parts showing the relationship between the belt and the rail, FIG. 6 is a perspective view of the dozer,
Fig. 7 is an enlarged perspective view of the main part of the guide roller mounting part, Fig. 8 is a partially broken enlarged side view when the shell bucket is in use, Fig. 9 is a perspective view showing the working state of the shell packet, and Fig. 10 is FIG. 11 is a front view showing another embodiment of the dozer, and FIG. 11 is a perspective view showing operations using a conventional dozer. (23)...Dozer, (24)...Slit, (25)...Guide roller. Figure 3 Figure 4 Figure 5 Figure 9 Figure 10

Claims (1)

[Claims] (1) A working machine for track repair, characterized in that slits are formed on both sides of the lower surface of the dozer to straddle the rails of the track, and guide rollers that come into contact with the rails are installed on the back surface of the dozer.