JPH04179702A - Shell bucket for track repairing - Google Patents

Abstract

PURPOSE:To improve workability by a method wherein clearance grooves in the width slightly wider than the width of a rail on a track are formed to each of a pair of buckets on places at the center in the breadthwise direction of the bucket, and movable covers that are constantly, elastically pressed to the bottom faces of the buckets are provided to the inside of the clearance grooves. CONSTITUTION:A shell bucket 1 mounted to a track repairing machine is lowered with clearance grooves 7 provided to bottom faces 2a and 3a of the buckets 2 and 3 agreed with one of grooves formed in crawler belts of an undercarriage of the machine. As the shell bucket is lowered, a rail 18 is made to enter the clearance grooves 7, and movable covers 8 provided to the inside of the bottom faces 2a and 3a are moved, being pushed by the rail 18, toward the inside of the buckets, and thereby the shell bucket 1 is placed, bestriding the rail 18. Then the machine is made to travel with the crawler belts circulated, and thereby repair of the track is executed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a track repair shell bucket 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, and heavy labor is forced on the operator.

To improve working conditions, various types of work equipment are used.

For example, when excavating gravel where sleepers are buried or replenishing with new gravel, a working machine with a digging bucket or a shell bucket equipped with a pair of digging buckets that can be opened and closed is usually used. are doing.

Shell bucket conventionally used for track repair (1)
As shown in FIG. 10, buckets (2) and (3) of symmetrical shape with fan-shaped cross sections and open opposing surfaces are swingably supported on a support plate (4). ) and the buckets (2) and (3), the buckets (2) and (3) are opened and closed by opening/closing sills (5) and (6) connected between the buckets (2) and (3), respectively. The shell bucket (1) is attached to the tip of a work arm (not shown) of a work machine, is moved to any position, and is opened and closed at a predetermined position.
(6) is expanded and contracted to open and close buckets (2) and (3) to perform work.

[Invention or Problem to be Solved] In Nikinerubakesoto (1), each bucket (2) and (3) are completely bag-shaped in order to prevent the grabbed gravel from falling. When excavating gravel or the like on a track, the rails of the track get in the way of the work, and the work is troublesome as the inside and outside of the rails have to be worked separately.

The present invention aims to provide a tool that allows work to be carried out regardless of the presence or absence of rails.

[Means for Solving the Problems] This invention provides a pair of excavation buckets with their opening sides facing each other, and a clearance groove slightly wider than the rail of the track formed from the opening end in the widthwise center of the bottom of each bucket. A movable lid is attached to the inside of this escape groove, which is always elastically pressed against the bottom surface of the bucket.

[Function] If the shell bucket with the above structure is lowered by aligning the relief groove formed in the bucket with the rail, the rail will enter the relief groove and be pushed by the movable lid or rail and enter the inside of the lettuce, so the rail can be lowered. You can work while standing back.

Furthermore, when the shell bucket is raised, the movable lid is pushed back to the bottom side of the bucket and closes the relief groove, thereby preventing gravel and the like from falling from the relief groove.

[Example] Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 9. However, the same components as those in the prior art shown in FIG. 10 are given the same reference numerals, and the explanation thereof will be omitted.

Bucket (2) that composes shell bucket (1) (
3) have the same structure and are combined symmetrically, as shown in FIGS. 1 and 2, and only one will be described in detail.

As shown in FIGS. 1 and 2, the bucket (2) has a fan-shaped cross section with a bottom surface (2a) that is an arcuate surface, and the facing surface on the center side is open. In addition, an escape groove (7) is formed in the widthwise central portion of the bottom surface (2a) in the front-rear direction from the open end side. This relief groove (7) is slightly wider than the rail, and is formed to a position where it will not hit the rail even when the closed bucket (2) reaches the ground. In addition, there is a relief groove (7) on the inner surface of the bottom surface (2a) of the bucket (2).
Install a movable lid (8) to cover the area. The movable lid (8) is
For example, using two types of long and short leaf springs (8a) (sb), a short leaf spring (8b) is placed inside the long leaf spring (8a).
Overlap and align all sides, cover the edge of the aligned part with the bottom (2a) of the bucket (2), attach it with bolts to the bottom (2a), and attach the long plate spring (8a). The escape groove (7) is closed. When the movable lid (8) is separated from the bucket (2) or the rail (18), it is in close contact with the bottom surface (2a) by its own elastic force, and the movable lid (8) is in close contact with the bottom surface (2a) by its own elastic force.
2) is placed over the rail (18) and when the rail (18) enters the escape groove (7), it is pushed by the rail (18) and flexes, so that the movement of the bucket (2) is not hindered.

Similarly, the other bucket (3) has a relief groove (7) formed on the bottom surface (3a), and the relief groove (7) is formed inside the movable lid (
8) or installed.

As shown in FIGS. 3 to 5, the work machine using the above Ner Hackett (1) has a structure in which an upper rotating body (12) is rotatably mounted on a crawler type lower traveling body (11), As described later, a shell bucket (
1) is installed.

The lower traveling body (11) has crawler belts (16) mounted on both sides of a heath frame (13) via a starting wheel (14) and an idler wheel (15). Claw label 1- (1
6), as shown in FIGS. 6 and 7, a large number of track links (not shown) are connected endlessly, and crawler shoes (17) are bolted to each track link one by one. The crawler shoe (17) has a groove (19) formed on its outer peripheral surface into which the rail (18) fits. 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) (2]) has a claw knee (1
7) may be welded or bolted.

A driver's seat (22) where a worker sits is on the upper revolving structure (12).
and various operating levers (2) in front of the driver's seat (22).
3) is provided.

In addition, the base of a hoisting arm (24) is pivotally attached to the side of the driver's seat of the upper revolving body (12) so that it can be hoisted freely.
) between the tip of the upper rotating body (12) and the undulating cylinder (
25) are connected to each other so that the undulation arm (24) can be undulated by the extending and contracting operation of the undulation cylinder (25). The rear part of an intermediate arm (26) is pivotally attached to the tip of the undulating arm (24) so as to be able to swing freely in the left and right direction.
) A support arm (27) is pivotally attached to the tip of the support arm (27) so as to be swingable in the left-right direction. There are first and
Second connecting arms (28) (29) are provided protrudingly, and third and fourth connecting arms (30) are provided on both sides of the tip of the support arm (27).
) (31), the first connecting arm (28) and the third connecting arm (30) are connected by a link rod (32), and the second connecting arm (29) and the fourth connecting arm (31) are connected by a link rod (32). ) are continuous at the link cylinder (33). Therefore,
The first and second connecting arms (28) (29) provided on the undulating arm (24), the third and fourth connecting arms (30) (31) provided on the support arm (27), and the link rod (32). ), a link mechanism is constructed with a link cylinder (33), and by expanding and contracting the link cylinder (33), it can swing in the left-right direction around the pivot point with the intermediate arm (26) or the undulating arm (24). At the same time, the support arm (27) moves in parallel from side to side. The support arm (2
The rear end of the working arm (34) is pivotally attached to the tip of the working arm (34), and the shell bucket (1) is attached to the tip of the working arm (34) so as to be able to rise and fall (=j).

and the rear end of the support arm (27) and the work arm (34).
The work arm (34) is raised and lowered by a second lifting cylinder (36) connected between the rear end of the work arm (34) and the first end of the shell bucket (1). The shell bucket (1) is undulated by the third undulation printer (37).

In addition, the lower running body (11) of the work equipment has a Heath frame (
13) via the lift arm (38).
39) is the installation. As shown in Figures 8 and 9, the dozer (39) has approximately the same width as the embankment on which the rails (18) (18) are being laid, and the work surface (39a)
It is formed into an arcuate surface so as to be able to scoop up soil, etc., and its lower edge is formed into a straight line.

In addition, slits (40) (40) are formed at an appropriate height from the lower edge of the dozer (39) in correspondence with the rail (18), and the dozer (39) is placed within the slits (40) (40).
9) Guide roller (41) to set the height of (41)
are arranged, and when the dozer (39) is tilted by a tilt mechanism (not shown) and lowered onto the rails (18) (18), the rails (18) (18) fall into the slits (40) (40). enters the guide roller (41) (4
1) hits the rail (18) (18) and the dosa (
39).

The guide roller (41) has a roller mounting bracket (42) mounted on the back side of the dozer (39) with bolts (43) so that its height can be adjusted, and supports pieces (42a) (42a) of the roller mounting bracket (42). ) is rotatably mounted between the lower ends of the above roller mounting bracket) (42
), for example, five bolt insertion holes (44) (44) are formed in the flange portion (42b), and three bolt holes (not shown) are formed on the dozer (three) side. By changing the arrangement of the roller mounting bracket (42) with respect to the dozer (39) and fixing it by connecting it with the bolt (43),
The relative height of the guide roller (41) to the dozer (39) can be varied, resulting in the height of the rail (18)
The height of the dozer (39) relative to (18) can be varied. Usually, the dozer (39) has guide rollers (41)
(41) or the rail (18) (1g), position it so that its lower edge is located slightly above the dog nail fixing the rail (18) (18).

Expansion and contraction of the hoisting cylinder (25) and link cylinder (33), second hoisting cylinder (36), third hoisting cylinder (37), opening/closing cylinders (5) and (6) in the above working machine, and tilt mechanism of the dozer (39) , and even the upper rotating body (
12), the driving of the crawler belts (16) (16) of the lower traveling body (11), etc. are all performed by the upper rotating body (12).
Various operation levers (23) installed in front of the driver's seat of
).

” 1. The work equipment has a groove (+9) (1) formed in the crawler heald (16) (+6) of the lower traveling body (11).
9) fitted onto the rails (18) (18), circulate the crawler hell (16) (16) and repair the track without running on the rails (18) (18).

When removing gravel around the rail (18) (18) as part of repair work, operate the various operation levers (23) as appropriate to remove the undulating linter (25), link-n-link (
33) The second undulation cylinder (36), the third undulation cylinder (37), and the open/close cylinders (5) and (6) are expanded and contracted as appropriate to direct the shell bucket (1) downward, and the bucket (
2) Bring bucket (3) with it open to the excavation position, close buckets (2) and (3), grab an appropriate amount of gravel, and discharge the grabbed gravel.

When supplying gravel around the rail (18) (18), reverse the steps in step 1 and add the shell bucket (18).
) The gravel picked up by the rails (18) is dropped and supplied around the rails (18).

During each of the above operations, when the shell bucket (1) moves in the left and right direction, it moves in parallel to the left and right by the link mechanism constructed between the hoisting arm (24) and the support arm (27). There is no intersection between the throat (1) and the rail (18), and the rail ( 18), and can be used astride the rail (18).
]8) Both sides can be repaired at the same time. Also bucket (2)
The movable lid (8) (
8) is installed and no external force is applied, the movable lid (8) (8) or relief grooves (7) (7) are blocked, so gravel, etc. can escape from the relief grooves (7) (7). It never falls apart.

When leveling gravel, etc., the dozer (39) is lowered and the slits (40) are used to level the rail (18).
) (18) and guide roller (41) (
41) is placed on the rail (18) (18), the work machine is run in this state, and the ground is leveled with the lower edge of the dozer (39). This work also involves slits (40) (40)
The dozer (39) can be placed outside the rail (18) (18) and the guide roller (41)
) (41), the height of the dozer (39) is adjusted, so the area around the rail (1g) (18) can be leveled at once.

In addition, the shell bucket (1) is similar to the bucket (2) (
It is also possible to excavate using one of the buckets (2) or (3) with bucket (3) open. In this case,
Bottom of bucket (2) (3) (2a) (3a)
Attach claws (not shown) to the edge of the comb in a comb pattern.

[Effects of the Invention] According to this invention, it is possible to work with the shell bucket straddling the rail, and it is possible to excavate gravel on both sides of the rail at once, or to supply gravel to both sides of the rail. This greatly improves workability during start-up repair.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway enlarged side view showing a shell bucket according to the present invention, Fig. 2 is a perspective view of the shell bucket in use, Fig. 3 is a side view showing an example of a working machine, and Fig. 4 is a side view showing a shell bucket according to the present invention. A plan view of the working machine, Fig. 5 is a front view of the working machine, Fig. 6 is an enlarged perspective view of the crawler shoe, Fig. 7 is a perspective view of main parts showing the relationship between the crawler heald and the rail, and Fig. 8 is the dozer. FIG. 9 is an enlarged perspective view of the main part showing the mounting part of the guide roller.
FIG. 10 is a partially cutaway side view of a conventional shell bucket. (1) Shell bucket, (2) (3) Bucket, (7) Relief groove, (8) Movable lid. Patent applicant Oyodo Chicell Co., Ltd.
Researcher Gangwon Province Godai
2 shi1 Figure 5 Condolence 6 Figure] V 71 I1 1+Y10',:

Claims (1)

[Claims] (1) Place a pair of excavation buckets with their opening sides facing each other, and form an escape groove slightly wider than the track rail from the open end in the widthwise center of the bottom of each bucket. A shell bucket for track repair, characterized in that a movable lid is attached that is constantly elastically pressed to the bottom of the bucket.