JP3116301B2 - Multifunctional snowplow for railway - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multifunctional snowplow for a railway mounted on the front end of a railway vehicle.

[0002]

2. Description of the Related Art Generally, a snow scraper is provided at a front end of a railway vehicle to remove snow piled on a track composed of a pair of rails. For example, a V plow that pushes snow to both sides and a straight plow that pushes snow to one side are used as snow scrapers for railway vehicles.

[0003] In a snowplow for a railway vehicle, not only is it necessary to remove snow in front of the snowplow from a V-plow or a straight plow, but also to remove snow accumulated below a rail upper surface between a pair of rails. A snow plow for railways meeting such a demand is known as shown in FIGS.

[0004] As shown in the figure, reference numeral 101 denotes a railway snow plow. The railway snow plow 101 is composed of a railway vehicle 102 and a snow plow 103. Snow scraper 103
Is a frame 104 attached to the front end of the railway vehicle 102,
V-shaped main plow 105 provided at the front end of frame 104
And a vertical sub snowplow 106 provided in front of the V-shaped main plow 105. The sub snowplow 106 has a V-shaped sub plow 106A, and has a structure capable of moving up and down the V-shaped sub plow 106A.

When the V-shaped sub plow 106A is lowered, the state shown in FIG.
6B is located at a position lower than the rail upper surface R1 of the rail R by a distance H. By the V-type sub plow 106A,
The snow accumulated below the rail upper surface R1 of the rail R between the pair of rails R arranged side by side is removed.

On the other hand, there is a case where snow cannot be brought close to the side of another railway vehicle 102 or the station platform which is stopped next to the railway vehicle 102. Further, there are cases where it is necessary to switch the direction in which the snow is brought to the left and right in a complicated manner, and cases where the snow cannot be brought to either the left or the right. Therefore, in order to cope with these usage conditions, there is a demand for mounting a multi-plow device having three functions of V plow, right and left straight plow, and reverse V plow with one snow plow.

As a multiplow apparatus meeting such a demand, for example, the one shown in FIG. 19 is known. As shown in the figure, the multi-plow device 107 has a left and right Russell wing in which a rotating shaft 108 is mounted on a frame having the same structure as the frame 104 and is rotatably mounted on the rotating shaft 108 in a horizontally rotatable manner. 10
9,110. Left and right Russell wings 109,1
By selecting the rotation position of 10, the V plow posture (shown in FIG. 21), the straight plow posture (shown in FIG. 20), the reverse V
Any one of the plow postures (shown in FIG. 19) is selected.

[0008]

However, when a multi-plow device 107 having such a function is equipped with a vertical sub snowplow device 106, the left and right Russell wings 1
09 and 110 are selected to be any one of the V plow posture, the left and right straight plow posture, and the inverted V plow posture, and the up-and-down type sub snowplow 106 is moved to the left and right Russell wings 109 and 110. The opening and closing of the sub-snowplow device 106 and the left and right Russell wings 109 and 110 are opened and closed.
1), snow has invaded between the rails R from the gap 111, and there has been a problem that the snow cannot be sufficiently removed below the rail upper surface R1 of the rails R, R.

In addition, it is conceivable to mount the vertical sub-snow device 106 in close contact with the left and right Russell wings 109 and 110. In this case, the gap 111 does not occur in the V-plow posture. Left and right Russell wings 109 and 110 in the case of a straight plow posture and a reverse V plow posture.
And the vertical type sub snowplow 106 interferes.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object thereof is to remove any one of a V-plow posture, a straight plow posture, and an inverted V-plow posture with respect to left and right Russell wings. An object of the present invention is to provide a multifunctional snowplow for railways that can sufficiently remove snow under a rail upper surface between a pair of rails even when an attitude is selected.

[0011]

According to the first aspect of the present invention,
A frame mounted on the front end of a railway vehicle and having a rotation axis provided vertically at the front end; and a V-plow posture, a straight plow posture, and a reversely mounted rotatably mounted on the rotation shaft of the frame in a horizontal direction. A multi-plow device having left and right Russell wings in which one of the V-plow positions is selected, a lifting device mounted on a frame positioned behind the multi-plow device, and a rear of the multi-plow device And is supported by a lifting device,
A V-shaped sub-plow whose upper or lower position is selected, wherein the V-shaped sub-plow is narrower than the interval between the pair of rails and the lower edge protrudes below the upper surface of the rail when the lower position is selected. It is characterized by having a V-shaped plow main body part to be in a state.

According to a second aspect of the present invention, in the multifunctional snow plow according to the first aspect, the V-shaped sub-plow is
It has a guide surface for guiding snow in the horizontal direction.

(Function) In the first aspect of the present invention,
The left and right Russell wings of the multi-plow device assume one of the V-plow posture, the straight plow posture, and the inverted V-plow posture.

When the railway vehicle is operated, the right and left Russell wings of the multiplow device remove snow above the upper surfaces of the pair of rails, but the snow accumulated below the upper surfaces of the pair of rails remains. . Subsequently, the snow below the upper surface of the pair of rails is removed by the V-shaped sub plow without being affected by the snow removing posture of the multi-plow device.

According to the second aspect of the present invention, the snow is guided in the horizontal direction by the guide surface of the V-shaped sub plow.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

The multifunctional snowplow for railway according to the first and second embodiments of the present invention will be described with reference to FIGS. As shown in FIG.
Is a railway snowplow, a railway snowplow 1 is a railway vehicle 2,
A multi-plow device 3 and a sub snowplow 4 located behind the multi-plow device 3 are provided.

As shown in FIGS. 1 to 5, the multi-plow device 3 includes a frame 5 having a three-dimensional lattice structure in which a rear end 5A is fixed to a front end 2A of a railway vehicle 2. A rotating shaft 6 is vertically fixed to the front end 5B of the frame 5. Rotating shaft 6
, A hinge portion (not shown) of the left Russell wing 7 and a hinge portion (not shown) of the right Russell wing 8 are rotatably mounted on the shaft. The hinge portions of the left Russell wing 7 and the hinge portions of the right Russel wing 8 are alternately arranged on the rotating shaft 6 along the vertical direction. The left Russell wing 7 and the right Russell wing 8 are configured to be rotatable about a rotary shaft 6.

The left Russell wing 7 is composed of a wing plate 7A and a wing plate 7B rotatably mounted on the wing plate 7A. The right Russell wing 8 includes a wing plate 8A and a wing plate 8
A and a wing plate 8B rotatably mounted on the shaft A. The lower ends 7E, 8E of the left and right Russell blades 7, 8 are located above the rail upper surface R1 of the rail R.

The left Russell wing 7 and the right Russell wing 8
The main plow 9 is formed. The frame 5 includes left and right upper vertical aggregates 5C and 5D, lower vertical aggregates 5E and 5F, an intermediate vertical aggregate 5G, a horizontal aggregate 5H (constituting the rear end 5A of the frame 5), and a horizontal. Aggregate 5I and horizontal aggregate 5J (front end 5B of frame 5)
And the oblique members 5K and 5L.
A bracket 10 is fixed to the intermediate vertical aggregate 5G.
As shown in FIG. 5, guide members 5M and 5N having a U-shaped cross section are provided on opposed inner side surfaces 5S and 5T of the oblique members 5K and 5L. The guide members 5M and 5N are perpendicular to the horizontal direction (the direction perpendicular to the plane of FIG. 5).

The first hydraulic cylinder 1 is mounted on the bracket 10.
The base ends 11A and 12A of the first and second hydraulic cylinders 11 and 12 are supported by the rods 11B and 12B, respectively.
C and 12C are wing plates 7A and 8 of left and right Russell wings 7 and 8, respectively.
A is pin-coupled to the mounting portions 7C and 8C. The mounting portions 7C of the wing plates 7B, 8B of the left and right Russell wings 7, 8
8C, one end of a first link member 13 having an inverted V shape and one end of a first link member 14 having a V shape are pin-connected. The other ends of the first link members 13 and 14 are located below the bracket 10. At the other ends of the first link members 13 and 14,
The base ends 15A, 16A of the second hydraulic cylinders 15, 16 are pivotally supported, and the base ends 15A, 16A of the second hydraulic cylinders 15, 16 are supported.
A and 16A are pivotally supported, and the tips 15C and 16C of the rods 15B and 16B of the second hydraulic cylinders 15 and 16 are attached to the mounting portions 7D and 8D of the left and right Russell blades 7 and 8 via the second link members 17 and 18. Pinned.

In FIG. 2, the main plow 9 is in a V-plow posture indicated by a solid line. In this state, the first
The hydraulic cylinder 11 is contracted and the first hydraulic cylinder 1
When the first link member 13 is extended, the first link member 13 and the left Russell wing 7 rotate about the rotation shaft 6, and the first link member 13 and the left Russell wing 7 are in a state indicated by a two-dot chain line. That is, the main plow 9 in the V plow posture is changed to the straight plow posture. The main plow 9 in the V-plow posture is changed to the reverse V-plow posture by operating the first hydraulic cylinders 11 and 12. In addition, the second hydraulic cylinders 15 and 16 are provided with the blades 7 of the left and right Russell blades 7 and 8.
It is used to change the angles of the wing plates 7B, 8B with respect to A, 8A.

As described above, the first hydraulic cylinders 11, 12
By the operation described above, the turning positions of the left and right Russell wings 7 and 8 are selected, and the main plow 9 can select any one of the V-plow posture, the straight plow posture, and the inverted V-plow posture. Then, as shown in FIGS. 3, 5, and 8, the lifting device 19 composed of an air cylinder located behind the multi-plow device 3 is attached to the lifting device mounting bracket 5P of the intermediate vertical aggregate 5G of the frame body 5. Is installed.

The sub snowplow 4 is shown in FIGS. 6 to 9 and includes a supporting aggregate 20, reinforcing members 20A and 20B provided on the supporting aggregate 20, and a supporting member bridged over the reinforcing members 20A and 20B. 20C, a lifting device mounting bracket 20D provided on the support member 20C, and reinforcing members 20A, 20C.
Outer side surfaces 20E, 2F of B, back to back
, And a V-shaped sub plow 23. As shown in FIG. 8, a lifting device 19 is mounted from the lifting device mounting bracket 5P of the intermediate vertical aggregate 5G to the lifting device mounting bracket 20D of the sub-snow device 4, and the sub-snow device 4 is mounted on the sub-snow device 4.
9 supported.

The slide members 21 and 22 are perpendicular to the horizontal direction (perpendicular to the plane of FIG. 5), and are slid vertically by the guide members 5M and 5N of the frame 5. It has become. V-type sub plow 23
The upper or lower position is selected depending on whether the elevating device 19 is up or down. The elevating device 19 has only the function of the upper and lower portions of the V-shaped sub plow 23, and the resistance to snow is received by the guide members 5M and 5N of the frame 5.

The V-shaped sub plow 23 has a V-shaped plow main body 24 formed in a V-shape in plan view, and a snow removal guide 25, which extends from both side edges 24A, 24A of the V-shaped plow main body 24, respectively. 25. Since the V-shaped plow main body 24 is formed in a V-shaped shape, snow can be evenly blown to the left and right. V-type sub plow 23
The V-shaped plow main body 24 has a guide surface 26 for guiding snow in the horizontal direction. A guide surface 2 for guiding snow in a horizontal direction is provided on the snow removal guide portions 25 of the V-shaped sub plow 23.
7, 27 are formed.

FIG. 9 shows the cross-sectional shapes of the guide surface 26 of the V-shaped plow main body 24 and the guide surface 27 of the V-shaped sub-plow 23. The guide surfaces 26, 27, 27 are substantially perpendicular inclined surfaces 26A, 27A, 27A and inclined surfaces 26A, 27A.
A, 27A, and curved surfaces 26B, 27B, 27B projecting along the substantially horizontal direction.
The curved surfaces 26B, 27B, 27B are generally in a horizontal state, and the end portions 26 of the curved surfaces 26B, 27B, 27B.
The tangents of C, 27C and 27C are directed obliquely downward from the horizontal as shown by the arrow (A) in the figure.

The curved surfaces 26 of the guide surfaces 26, 27, 27
B, 27B, and 27B prevent the snow from flying upward and are caused to fly in the horizontal direction. This is because, when the snow is blown upward, the snow hits the frame 5 and the snow that has been snow-removed falls again between the rails R, R, leaving snow on a portion of the pair of rails R, R below the rail upper surface R1. V which removes a portion below the rail upper surface R1 between the rails R, R
The original function of the mold subplow 23 cannot be performed. In particular, when the railcar 2 is driven at a high speed to perform snow removal work, snow flies obliquely upward,
The shapes of the curved surfaces 26B, 27B, 27B are determined by the guide surfaces 26, 27, 27 so that the snow flies in the horizontal direction.

V-shaped plow main body 2 of V-shaped sub-plow 23
The reason why the snow removal guide portions 25 are provided on both sides of the 4 is that the V-shaped plow main body 24 has a function of uniformly flying snow left and right, and further disperses the snow left and right. The V-shaped plow main body 24 projects below the rail upper surface R1 of the rails R, R when the position below the interval W between the pair of rails R, R on which the railcar 2 runs is narrower and lower is selected. Become. When the V-shaped sub plow 23 goes down,
In the state of FIG. 7, the lower edge 24B of the V-shaped plow main body 24 of the V-shaped sub-plow 23 is located at a position lower than the rail upper surface R1 of the rail R by a distance H.

The advancing angle of the V-shaped sub plow 23 will be described. In general, when the advance angle θ of the plow (shown in FIG. 6) is small, the cutting resistance when moving forward is small, and when the advance angle θ is large, the cutting resistance when moving forward is large.
When only the cutting force is considered, it is advantageous that the advance angle θ is small, but the length of the plow becomes long, and the method of supporting the plow and the structure of the guide during the vertical movement are complicated. 50 to 55 degrees is generally adopted as the plow advance angle θ. In the case of the V plow, the acting force is dispersed to the left and right, so that no horizontal force is applied to the frame 5. However, in the case of the straight plow, the horizontal force applied to the frame 5 increases as the advance angle θ increases. It may cause derailment. As described above, also in the case of the V-shaped sub plow 23, the advance angle θ is set to 5
It is generally assumed that 0 to 55 degrees is adopted.

The reason why the V-shaped sub plow 23 is structured to move up and down will be described. At a railroad crossing, a portion between the rails R and the outside and the outside thereof are paved or buried with a sleeper or the like so as to be flush with the upper surface R1 of the rail R, thereby forming a flat portion. Therefore, the V-shaped sub plow 2
If the vehicle travels with the position 3 lowered, the V-shaped sub plow 23 will interfere with the flat part. Therefore, when performing snow removal work, the driver raises the sub-snow scraper 4 just before the railroad crossing, and lowers it again when the railway vehicle 2 passes the railroad crossing.

In this embodiment, the left and right Russell wings 7, 8 are operated in the V-plow posture (FIG. 10) by operating the first hydraulic cylinders 11, 12 of the multi-plow device 3.
), The straight plow posture (shown in FIGS. 11 and 12), and the inverted V-plow posture (shown in FIG. 13), and the railcar 2 is operated. The left and right Russell wings 7 and 8 remove snow in front of the left and right Russell wings 7 and 8, and the portions of the pair of rails R and R above the rail upper surface R1 are removed.

However, snow under the rail upper surface R1 between the pair of rails R, R remains as residual snow. Subsequently, by the V-shaped sub plow 23 of the sub snowplow 4
The snow under the rail upper surface R1 between the pair of rails R, R is removed without being affected by the snow removal posture of the left and right Russell wings 7, 8 of the multi-plow device 3. At this time, V
By the guide surfaces 26, 27, 27 of the mold sub plow 23,
The snow is guided in the horizontal direction, and falling between the pair of rails R, R is prevented.

As described above, the pair of rails R,
Since the snow under the rail upper surface R1 between R is removed, when the flange 2B of the wheel 2C of the railway vehicle 2 passes through the inner side surface R2 of the rail R, as shown in FIG. As a result, the snow S remaining inside the rail R is pushed down as shown by the arrow, and the wheels 2C are not affected by the snow S remaining inside the rail R when traveling, so that the risk of derailment can be eliminated. .

As shown in FIG. 15, when snow is left between the pair of rails R, the wheels 2
It is said that the remaining snow is solidified due to the passage of C through the flange 2B, and the hardened snow lifts the wheel 2C, which may cause derailment. According to the above-described configuration, the multiplow device 3 selects one of the V-plow posture, the straight plow posture, and the inverted V-plow posture for the left and right Russell wings 7 and 8 in a state where the snow removal posture is selected. Even when the vehicle 2 is operated, the V-shaped sub plow 23 of the sub snowplow 4 is not affected by the snow removal posture of the left and right raschel wings 7, 8 and is located below the rail upper surface R1 between the pair of rails R. Can be removed, and the risk of derailment can be eliminated.

[0036]

According to the first aspect of the present invention, the railway vehicle is operated by setting the left and right Russell wings of the multi-plow device to any one of the V-plow posture, the straight plow posture, and the reverse V-plow posture. However, the V-shaped sub-plow can sufficiently remove snow under the upper surface of the rail between the pair of rails without being affected by the snow removal posture of the left and right Russell wings. According to the second aspect of the present invention, the guide surface of the V-shaped sub plow guides snow horizontally and can prevent snow from falling and accumulating below the upper surfaces of the pair of rails.

[Brief description of the drawings]

FIG. 1 is a plan view showing a railway vehicle equipped with a multifunctional snowplow for a railway according to an embodiment of the present invention.

FIG. 2 is a plan view showing the multifunctional snowplow for a railway.

FIG. 3 is a side view showing the multifunctional snowplow for a railway.

FIG. 4 is a front view showing the multifunctional snowplow for a railway.

FIG. 5 is a plan view showing a part of the frame of FIG. 2;

FIG. 6 is a plan view showing a sub snowplow.

FIG. 7 is a front view showing a V-shaped sub plow of the sub snowplow.

FIG. 8 is a side view showing a V-shaped sub plow of the sub snowplow.

FIG. 9 is a sectional view of a V-shaped sub plow.

FIG. 10 is an explanatory diagram of a use state of a V-type sub plow in a case where left and right Russell wings of the multi-plow device of the multifunctional snowplow for a railway are in a V-plow posture.

FIG. 11 is an explanatory diagram of a usage state of a V-type sub plow in a case where left and right Russell wings of the multi-plow device of the multifunctional snowplow for a railway are in an inverted V-plow posture.

FIG. 12 is an explanatory diagram of a usage state of a V-type sub plow when the left and right Russell wings of the multi-plow device of the multifunctional snowplow for a railway are in a straight plow posture.

FIG. 13 is an explanatory diagram of a usage state of a V-type sub plow in a case where left and right Russell wings of the multi-plow device of the multifunctional snowplow for a railway are in a straight plow posture.

FIG. 14 is an explanatory cross-sectional view showing a state in which wheels of a railway vehicle run on rails from which snow between a pair of rails has been removed by a V-shaped subplow.

FIG. 15 is an explanatory cross-sectional view showing a state where wheels of a railroad vehicle run on rails when snow exists between a pair of rails.

FIG. 16 is a plan view showing a railway vehicle equipped with a conventional snow-plowing device.

FIG. 17 is a side view showing a railway vehicle equipped with a conventional snow-plowing device.

FIG. 18 is a front view showing a conventional V-shaped sub plow.

FIG. 19 is an explanatory plan view showing the relationship between the Russell wing and the V-type sub plow of the multi-plow device in a state where the snow removal posture of the inverted V-plow posture is selected.

FIG. 20 is an explanatory plan view showing the relationship between the Russell wing and the V-type sub plow of the multi-plow device in a state where the snow removal posture of the V plow posture is selected.

FIG. 21 is an explanatory plan view showing the relationship between the Russell wing and the V-shaped sub plow of the multi-plow device in a state where the snow removal posture of the straight plow posture is selected.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Snow plow for railroad 2 Railcar 3 Multiplow device 5 Frame 6 Rotating shaft 7 Left raschel wing 8 Left raschel wing 23 V-type sub plow 24 V-type plow main body 24B Lower edge 26 Guide surface 27 Guide surface

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroshi Matsueda 5-19-19 Kita 8-Jo Higashi, Higashi-ku, Sapporo City, Hokkaido (72) Inventor Hiroshi Inoue 1-2-1 Akiba, Niigata City, Niigata Prefecture Niigata Iron Works, Ltd. (72) Inventor Mitsuru Shibuya 1-2-1 Akiba, Niigata City, Niigata Pref. Niigata Ironworks Co., Ltd. Oyama Plant (58) Fields investigated (Int. Cl. ⁷ , DB name) E01H 8/00 -8/08 E01H 5/06

Claims (2)

(57) [Claims] 1. A frame mounted on a front end of a railway vehicle and having a rotation axis provided vertically at the front end, and a V-plow posture mounted on a rotation axis of the frame so as to be rotatable in a horizontal direction. A multi-plow device having left and right Russell wings in which one of a straight plow posture and an inverted V-plow posture is selected, and a lifting device mounted on a frame positioned behind the multi-plow device, A V-type sub-plow which is positioned behind the multi-plow device and is supported by the elevating device, and whose upper or lower position is selected, wherein the V-type sub-plow is narrower and lower than the interval between the pair of rails. A multifunctional snowplow for railways, comprising a V-shaped plow main body having a lower edge projecting below the upper surface of the rail when the rail is lowered. 2. The multifunctional snowplow for a railway according to claim 1, wherein the V-shaped subplow has a guide surface for guiding snow in a horizontal direction.