JPS607366Y2 - Railway bed gravel scraper - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a gravel scraper for railroad tracks.

In general, railroad tracks are constructed by laying gravel and crushed stones on the roadbed to form a roadbed, and on the roadbed, sleepers are placed in parallel at predetermined intervals, and two rails are fixed to the sleepers. Gravel and crushed stone are replaced every year or every two years.

This is because the gravel placed under the sleepers transfers the load from the wheels through the rails and sleepers to the roadbed, gives elasticity to the rails, improves drainage, and is useful for adjusting rail misalignment. As time goes by, the gravel becomes smaller due to weathering, etc., and the gaps between the gravel disappear and become denser, making it impossible to provide the desired elasticity to the rail and causing problems such as poor ice removal. will occur.

Therefore, the gravel and crushed stones on the roadbed are replaced regularly, but the gravel and crushed stones are removed by humans using shovels.
This was done using tools such as pickaxes.

Therefore, it takes many workers and many days to scrape out gravel and crushed stone, and recently there has been a desire to mechanize this work.

The present invention fully satisfies such demands and provides a scraper that can speedily and reliably scrape out gravel and crushed stones. A driving sprocket is attached to the front, and a driven sprocket is attached to the front, and a chain is wound around both sprockets, and a support plate with scraping claws is integrally attached to the outer circumferential surface of the chain. Two hydraulic cylinders 91J are installed facing each other on the other side of the frame, and extendable arm members are installed on both hydraulic cylinders to adjust the inclination of the formwork across the lid frame.
Furthermore, the hydraulic cylinder is characterized in that a rail holding fitting is attached to the end of the rod.

Hereinafter, one embodiment of the present invention will be described based on the drawings.
Reference numeral 1 denotes a lid frame, which has a rectangular cross section and is long enough to cross the track bed I, and its front side a and side side are open.

The lid frame 1 may be formed by cutting out the front and side faces of a horizontally long box, but it is of course also possible to form the side plate 1' by fixing the side plate 1' to the side surface of an H-shaped steel as shown in the figure.

A driving sprocket 2 and a driven sprocket 3 are horizontally attached to the rear part and the front part of the shredding 1, respectively, and a chain 4 is wound around both sprockets 2 and 3.

A hydraulic motor 5, an electric motor, or the like is used as a drive source for the drive sprocket 2, and these drive sources are mounted and fixed on the rear upper surface of the lid frame 1.

A support plate 6 having a protruding scraping pawl 7 is integrally fixed at a predetermined interval to the outer peripheral surface of the chain 4, and as the chain 4 rotates, the base plate 5 having the scraping pawl 7 rotates. It is designed to move.

The scraping claws 7 attached to the support plate 6 are attached vertically alternately.

On the side plate 1' of the lid frame 1, the bases of hydraulic cylinders 8 and 9 for pushing out and moving the lid frame 1 are rotatably attached to the frame 11 with pins 12, and both hydraulic cylinders 8 and 9 are connected to each other. Arm members 10 which are extendable and retractable across the lid frame 1 are attached to the hydraulic cylinders 8 and 9, which are facing each other.
The inclination of the lid frame 1 can be varied by adjusting the extension and contraction of the arm member 10.

Rods 8' and 9' tips of hydraulic cylinders 8 and 9! : A retaining ring 13 is fixed, and a rail presser fitting 14 is removably attached via the retaining ring 13.

The arm member 10 is not limited to the illustrated hydraulic cylinder, but a turnbuckle or the like may have the same effect.

Reference numeral 15 denotes a ring guide provided inwardly protruding from the upper and lower plates of the lid frame 1, which smooths the running of the straight part of the chain 4, and also serves as a ring guide on the side opening side of the lid frame 1. This prevents the support plate 6 having the above-mentioned structure from being bent due to the internal force of the refractory 1 due to external force.

Reference numeral 16 denotes a tensioner for the chain 4, which slides back and forth a support rod 17 that supports the rotating shaft 3' of the driven sprocket 3.

18 is a piping member of the hydraulic system.

Next, to explain the operation of the above-mentioned scraper, first scrape out the gravel 21 under the rails 19 and sleepers 20 to create a space into which the lid frame 1 is inserted, and in that space, the lid frame 1 is
, rotate the hydraulic cylinders 8 and 9 attached to the side plate 1' of the lid frame 1, hook the rail holding fittings 14 at the tips of the rods 8' and 9' onto the rail 19, and then adjust the arm member 10. to set the lid frame 1 in a state suitable for scraping work.

After setting the lid frame 1 under the rail 19 as described above, when the hydraulic motor 5 is activated, the support plate 6 having the scraping claws 7 rotates as the chain 4 rotates, and the lid frame 1
Gravel 21 on the side facing the side opening can be scraped out to the rear side of the lid frame 1.

Moreover, by operating the hydraulic cylinder 8.9 attached across the rail holding fitting 14 hooked on the rail 19 and the lid frame 1 to extend the rods 8' and 9', the lid frame 1 can be moved to the gravel 2.
Move forward while scraping out the hydraulic cylinder 8,
The lid frame 1 moves by an extension stroke of 9.

When scraping out the gravel 21, if the bottom side of the refractory 1 is not scraped out properly and gravel remains, the arm member 10 can be retracted and the side opening of the lid frame 1 can be tilted downward. Gravel on the sides can also be scraped out smoothly.

Conversely, if the arm member 10 is extended, the side opening of the lid frame 1 will be directed upward.

Since the present invention is constructed as described above, gravel, crushed stones, etc. can be automatically scraped out by inserting the cover frame into the track bed and operating the chain.

Moreover, since the lid frame is pressed and moved by the extension of the hydraulic cylinder, it moves while scraping out gravel by the extension stroke of the hydraulic cylinder.

Therefore, the gravel and crushed stones in the road bed can be scraped out in a short time without requiring any manpower, which is very convenient.

In addition, since the two hydraulic cylinders are equipped with extendable arm members that span the lid frame and adjust the inclination of the crushed debris, it is possible to remove gravel from the bottom of the lid frame if it is not done properly and remains. By retracting the arm member and making the side opening of the refractory slope downward, the gravel underneath can be scraped out smoothly.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a cross-sectional plan view;
Figure 2 is an enlarged sectional view taken along line 2-2 in Figure 1, Figure 3 is a plan view of the proposed scraper set on the track bed, Figure 4 is a front view of the same, and Figure 5 is a side view of the same. FIG. 6 is a rear view showing the side opening of the refractory. In the figure, 1... Lid frame, 2... Driving sprocket, 3... Driven sprocket, 4...
...Chain, 6...Base plate, 7...
Scraping claw, 8, 9...Hydraulic cylinder, 10.
...Arm member, 14...Rail holding fitting,
21...Gravel, 19...Rail.

Claims (1)

[Scope of utility model registration request] A driving sprocket is attached to the rear part and a driven sprocket is attached to the front part of the lid frame, which has a rectangular shape and has an open front and side faces, and a chain is wound around both sprockets, and the outer circumference of the chain is A support plate with scraping claws is integrally attached to the side of the formwork, and two hydraulic cylinders are attached facing each other to the other side of the formwork. A railway gravel scraper equipped with an extendable arm member that adjusts the inclination of the formwork, and a rail holding fitting attached to the end of the hydraulic cylinder.