JPH0335446B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a snow removal vehicle equipped with a snow removal plow on the traveling vehicle.

``Conventional technology'' Conventionally, in road snow removal work, snow removal vehicles such as tire dozers and motor graders with a snow removal plow attached to the front end of the moving vehicle, so-called plow-type snow removal vehicles, have been used as the main machinery for snow removal work to remove fresh snow. It is widely used for snow removal, widening snow removal, road surface stabilization, etc.

By the way, when removing snow using the above-mentioned conventional plow-type snowplow vehicle, as shown in FIG. While the snow embankment A is low, new road snow is piled up on the snow embankment A and snow removal is performed smoothly. However, when the snow embankment B is piled up higher than the snow removal plow 2, As described above, there is a problem in that snow on the road cannot be piled up on the snow embankment B, and the snow removal efficiency by the snow removal plow 2 is reduced. For this reason, when snow embankment B becomes higher,
A rotary snowplow is used to remove snow on the roadside onto a snow embankment B, creating a new space on the roadside so that snow can be removed by a snow removal plow 2.

``Problems to be Solved by the Invention'' However, when using a plow-type snowplow and a rotary snowplow as described above, the snow removal work is performed in two stages, which complicates the work and reduces snow removal efficiency. This causes a problem in that snow removal takes time.

The present invention was made in view of the above circumstances, and
The purpose is to provide a snowplow that can expand the range of snow removal, improve the efficiency of snow removal work, and increase the speed of snow removal.

"Means for Solving the Problems" In order to achieve the above object, the present invention provides an upper part of a snow removal plow installed on a traveling vehicle that is movable relative to the snow removal plow in the longitudinal direction of the traveling vehicle. a snow-throwing blower device installed in the snow-throwing blower device;
A step cutting plow connected to the snow-throwing blower device so as to be integrally movable in the longitudinal direction of the traveling vehicle, the step-cutting plow being movable in the width direction of the traveling vehicle with respect to the snow-throwing blower device. It has a set configuration.

"Function" In the snowplow of the present invention, when the snow embankment becomes high, the snow blower device is made to protrude in front of the snow removal plow, and the step plow is moved from the front of the snow removal blower device. By moving it to the side, the snow removal plow and step plow discharge the snow to the side of the road, and the snow throwing blower device throws the snow upward to the side.

"Embodiment" Hereinafter, an embodiment of the present invention will be described based on FIGS. 1 to 8.

In the figure, reference numeral 10 indicates a running vehicle such as a tire dozer or a motor grader.As is well known, a plow operating mechanism 14 consisting of an arm 11, a link 12, and a hydraulic cylinder 13 is connected to the front end of the running vehicle 10. Approximately trapezoidal snow plows 15 that are convex and curved in the vertical direction are connected to each other in a horizontal plane with the right side thereof located forward of the left side. The snow removal plow 15 is operated by operating the hydraulic cylinder 13 of the plow operating mechanism 14. Also,
A square cutout 15a is formed in the upper left side of the snow removal plow 15, and a cylindrical blower case 17 of the snow throwing blower device 16 is inserted into the cutout 15a at its front end opening. The above notch 15a
The flange portion 17a, which corresponds to the flange portion 17a, is fixedly arranged. A pair of front and rear guide cylinders 18 are fixed to the upper and lower parts of the blower case 17, respectively, and each of these guide cylinders 18 has a guide rod whose one end is fixed to the back surface of the snow removal plow 15. 19 is slidably fitted. Furthermore, the tip of the rod of a hydraulic cylinder 20 whose base end is rotatably attached to the back surface of the snow removal plow 15 is rotatably connected to the rear of the blower case 17 via a mounting member 21. This hydraulic cylinder 2
0, the guide cylinder 18 of the blower case 17 slides back and forth along the guide rod 19, and the snow-throwing blower device 16 comes to appear and disappear from the notch 15a of the snow removal plow 15. There is.

Inside the blower case 17, a blower 22 is provided.
is rotatably mounted with its tip blade 22a protruding forward of the blower case 17,
A hydraulic motor 23 for rotating the blower 22 is installed at the rear end of the blower case 17. On the left side of the blower case 17, there is a snow throwing port 1.
7b is formed. A support plate 24 and a pair of left and right support rods 2 are provided at the upper and lower ends of the flange 17a of the blower case 17, respectively.
5 is fixed to a position protruding forward from the tip blade 22a of the blower 22, and a pair of upper and lower guide members 26 are provided at the tips of these support plates 24 and each support rod 25, respectively, parallel to each other. It is fixed in a fixed state. Then, a stepped plow 27 in which a pair of upper and lower sliding portions 27a is fitted to each guide member 26 is inserted into each guide member 26.
It is attached so that it can be moved left and right along 6.
The tip of a rod of a hydraulic cylinder 28 whose base end is rotatably attached to the right end of the support plate 24 is rotatably connected to the upper left side of the step cutting plow 27. The stepped plow 27 is fitted into the notch 15a of the snow removal plow 15 when stored, and is formed into a curved shape to match the curved surface of the snow removal plow 15. Furthermore, the traveling vehicle 10
An engine 30 that drives through a transmission mechanism 29
A hydraulic pump 31 is connected to the hydraulic pump 31, and the hydraulic pump 31 is connected to a working hydraulic circuit C for operating each hydraulic cylinder 13, 20, 28 via a flow dividing valve 32, and a hydraulic motor for rotating the blower 22. 23
are connected to each other.

When removing snow from a road using a snowplow constructed as described above, first, when the roadside snow embankment is low, each hydraulic cylinder 20,
28 to move the step cutting plow 27 to the right along each guide member 26 to cover the front surface of the snow-throwing blower device 16, and move the snow-throwing blower device 16 along each guide bar 19. After fitting the step plow 27 into the notch 15a of the snow removal plow 15 by moving it backward, the snow removal plow 15 and the step cut plow 27 All you have to do is clear the snow. In this case, the snow on the road is removed by the snow plow 1 mentioned above.
5 and the stepped plow 27 that matches the notch 15a of the snow removal plow 15, the snow is pushed up along the curved surface and piled up on the roadside snow embankment.

In addition, the snow bank on the roadside has become higher, and each plow has
If it is difficult to remove snow using the plows 5 and 27, operate each hydraulic cylinder 20 and 28 to remove the snow from the step plow 2.
7 protrudes diagonally to the left side along each guide member 26 to open the front of the snow-throwing blower device 16 and move the snow-throwing blower device 16 forward along each guide bar 19. So, Proa 2
The tip blade 22a of No. 2 is inserted into the notch 15 of the snow removal plow 15.
Snow removal work can be performed by making the blower case 17 protrude from a and aligning the brim 17a of the blower case 17 with the notch 15a of the snow removal plow 15. In this case, the snow plow 27 preceding the snow removal plow 15 moves the snow accumulated on the top of the snow embankment to the side (D in the figure), as shown in FIGS. 6 to 8.
2), a stepped space is formed at the rear of the moving path of the step cutting plow 27. and,
The snow on the road collected by the snow plow 15 is
It is pushed up laterally along the curved surface of the snow removal plow 15 and loaded into the stepped space (section E in FIGS. 7 and 8) formed by the step cutting plow 27, and the blower 22 tip blades 22a also transfer snow into the stepped space. Furthermore, there is a lot of snow collected by the snow plow 15,
If the space cannot be accommodated in the stepped space, the blower case 17 can be moved by rotating the blower 22.
Snow is thrown upward and laterally from the snow dumping opening 17b, and piled up on top of the snow embankment (section F in Figures 6 to 8).

In this way, when the snow embankment is low, the snow removal plow 15 and the step cutting plow 27 can perform the same snow removal as a conventional plow-type snowplow, and when the snow bank is high, the snow removal plow 15 and the step cutting plow 27 can perform The plow 27 forms a stepped space at the top of the snow embankment, the snow removal plow 15 transfers snow on the road to the stepped space, and the blower 22 transfers snow to the stepped space. Since the snow that cannot be stored is dumped above the snow embankment, snow can be removed smoothly regardless of the height of the snow embankment, making snow removal work faster and more efficient.

"Effects of the Invention" As explained above, the present invention provides a snow removal vehicle in which a snow removal plow is provided on a traveling vehicle, in which a snow removal plow is provided on the upper side of the snow removal plow in the longitudinal direction of the traveling vehicle with respect to the snow removal plow 7 plow. A snow-throwing blower device is provided to be relatively movable, and the snow-throwing blower device is disposed at a predetermined interval in front of the snow-throwing blower device, and is connected to the snow-throwing blower device so as to be movable integrally in the longitudinal direction of the vehicle. and a step-cutting plow, the step-cutting plow is provided movably in the width direction of the traveling vehicle with respect to the snow-throwing blower device, and the snow embankment is raised. In such cases, the snow removal plow and the step plow can be used to clean the road by protruding the snow blower device in front of the snow removal plow and moving the step plow from the front side of the snow removal plow to the side. By discharging snow to the sides and throwing snow upwards and to the sides using a snow blower, it is possible to easily remove snow even if the snow embankment is high, expand the snow removal area, and improve snow removal work. This has the excellent effect of increasing efficiency and speed.

[Brief explanation of drawings]

1 to 8 show an embodiment of the present invention, in which FIG. 1 is a plan view when the blower is stored, FIG. 2 is a partial plan view when the blower is extended, and FIG. 3 is a side view.
Figure 4 is a perspective view, Figure 5 is a hydraulic circuit diagram, Figure 6 is a schematic front view during snow removal, Figure 7 is a schematic plan view during snow removal, and Figure 8 is a cross section taken along the - line in Figure 7. 9 are schematic front views of a conventional plow-type snowplow during snow removal. 10... Traveling vehicle, 15... Snow removal plow, 16
...Blower device for snow throwing, 27...Stage plow.

Claims (1)

[Claims] 1. In a snow removal vehicle in which a snow removal plow is installed on a traveling vehicle, a snow throwing blower device is provided on the upper side of the snow removal plow so as to be movable relative to the snow removal plow in the longitudinal direction of the traveling vehicle; A step-cutting plow is provided in front of the snow-throwing blower device at a predetermined interval and connected to the snow-throwing blower device so as to be able to move integrally in the longitudinal direction of the traveling vehicle, and the step-cutting plow A snow removal vehicle is characterized in that a blower device for snow throwing is provided so as to be movable in the width direction of a traveling vehicle.