JP3143637B2 - snowblower - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snow remover, and more particularly, to a snow remover suitable for use in a state where snow is compacted.

[0002]

2. Description of the Related Art Conventionally, snow removal at railroad crossings is mainly performed manually, and is performed between trains and passing vehicles.

[0003]

However, at railroad crossings, there is a problem that snow removal is difficult and the working time is prolonged by human power since snow is in a state of compaction and rutting by a passing vehicle. In addition, since snow removal is performed between passing trains and passing vehicles, there is a problem that the work time is further increased. In addition, there is a problem that snow removal personnel cannot be secured depending on the location and working conditions of the railroad crossing.

[0004] Accordingly, an object of the present invention is to provide a snow remover which can satisfactorily remove snow even at a railroad crossing or a place where snow tends to be compacted, irrespective of human power.

[0005]

In order to achieve the above object, a snowplow according to the present invention is provided with a rotary auger for collecting snow and a snow removing device provided behind the auger for removing snow collected by the auger. The auger has a snow removal device in front of the traveling vehicle, and is swingably supported about a rotation axis of the auger.
And a support arm extending forward.
A rotary snow compaction device is installed at the end of the arm to break the snow.
Only it becomes and is characterized in that the axis of rotation of the auger is connected via a chain to the axis of rotation of the snow groomer crusher.

[0006]

According to the snow remover of the present invention, since the snow compaction device crushes the compacted snow in front of the auger, the crushed snow is favorably collected by the auger and satisfactorily removed by the snow removal device. It will be snow. Also, the rotation axis of the auger
A support arm that swings around the center and extends forward
A crushed snow at the tip of the support arm.
Ku provided a rotary snow groomer grinding apparatus, and since the axis of rotation of the auger is connected via a chain to the axis of rotation of the snow groomer crusher, via the switch En during rotation of the auger and snow groomer grinding apparatus, the support arm force of the swing is allowed Keru with press snow groomer pulverizer in compacted snow surface direction is added.

[0007]

1 shows a snow blower according to an embodiment of the present invention.
This will be described below with reference to FIGS.

1 and 2, reference numeral 1 denotes a snow blower according to the present embodiment. The snow blower 1 is provided on a traveling vehicle 2 for road use and is provided in front of the traveling vehicle 2 along the left-right direction. An auger 3 for collecting snow, a snow removal device 4 provided between the auger 3 and the traveling vehicle 2 for removing snow collected by the auger 3 in a predetermined direction, It mainly comprises a snow compaction device 5 provided along the direction to crush the compacted snow. Here, the snow removal device 4 includes a link mechanism 6.
The auger 3 is supported by supporting members 9 and 10 fixed to both side surfaces 7 and 8 of the snow removal device 4, respectively. By driving two cylinders 11 provided in parallel between the traveling vehicle 2 and the snow removal device 4, the snow removal device 4, the auger 3, and the like move up and down. These cylinders 11 are driven by being remotely operated by a control switch (not shown) provided in the driver's seat of the traveling vehicle 2. During snow removal, the snow removal device 4 and the auger 3 are raised.

As shown in FIG. 3, the traveling vehicle 2 has a hydraulic pump 13 driven by an engine 12 provided therein, and a traveling hydraulic motor driven by the hydraulic pressure of the hydraulic pump 13. The vehicle travels by transmitting the driving force of 14 to wheels 17 via a speed reducer 15 connected to the traveling hydraulic motor 14 and a propeller shaft 16 connected to the speed reducer 15.

The driving force of the hydraulic pump 13 is also driven by an auger blower driving hydraulic motor 18. The driving force of the auger blower driving hydraulic motor 18 is
9 and further transmitted from the blower speed reducer 19 to the snow removal device 4 and transmitted to the sprocket 21 via the propeller shaft 20. Note that FIG.
What is indicated by is a hydraulic pump that assists steering and the like.

The driving force from the blower speed reducer 19 to the snow removal device 4 is transmitted to the blower 23 of the snow removal device 4, and the driving force causes the blower 23 to rotate and be provided on the upper side thereof. The snow collected on the center side by the auger 3 is discharged to the outside from the snow discharge cylinder 24 of the snow discharge device 4 (see FIG. 1). Sprocket 2 from blower reducer 19
1 is transmitted to the auger 3 through a chain 25 having one end wound around the sprocket 21 and a sprocket 26 wound around the other end of the chain 25, and is fixed coaxially with the sprocket 26. The sprocket 27 is transmitted to the snow pulverizing device 5 via the sprocket 27, a chain 28 having one end wound around the sprocket 27, and a sprocket 29 wound around the other end of the chain 28.

As shown in FIG. 4, a substantially cylindrical cylindrical member 30 is provided on the inner side surface of the upper (rightward in the traveling direction) support member 9 in FIG. 2 fixed to one side surface portion 7 of the snow removal device 4.
Is fixed along its axis in the vertical direction in the figure, and a connecting member 32 is fitted to the inner peripheral side of the cylindrical member 30 via a bearing 31 so as to be rotatable. The connecting member 32 has a substantially cylindrical cylindrical portion 33 supported by the bearing 31, and a flange portion 34 provided below the cylindrical portion 33 in FIG. 4 and having a larger diameter than the cylindrical portion 33. A sprocket 26 is fitted and fixed to the outer peripheral portion of the cylindrical portion 33 on the side opposite to the flange portion 34 by a spline. A shaft 36 of a rotating body 35 is rotatably inserted on the inner peripheral side of the connecting member 32. The rotating body 35 has a flange portion 37 formed on the lower side of the shaft portion 36 in FIG.
Are provided below the flange portion 34 of the connecting member 32 in FIG.
37 correspond to the shear pins 3 provided near the outer periphery thereof.
8 are connected in a fixed state.

Here, the shear pin 38 is cut off when an unnecessary torque is applied to the auger 3 by, for example, entanglement of a chain that has fallen off the vehicle, and the shear pin 38 is not affected by the unnecessary torque on the drive system such as the hydraulic pump 13. This is to prevent spread.

The flange 37 of the rotating body 35 has
The shaft member 39 of the auger 3 is coaxially fixed to the lower side in FIG. This auger 3 is shown in FIG.
As shown in the figure, the spiral blade member 41 has a plurality of spiral blade members 41 provided radially outside the shaft member 39.
As shown in FIG. 6, a tip 42
However, a plurality of objects that are closest to each other are fixed at a predetermined pitch so as to be inclined at a predetermined angle along the rotation direction. As is well known, the auger 3 rotates to collect snow on the center side, that is, on the entrance side of the snow removal device 4.

A perforated disk member 43 is fixed to the outside of the support member 9, and a substantially cylindrical rotation support member 45 is rotated on the inner peripheral side of the disk member 43. They are freely fitted. On the inner peripheral side of the rotation supporting member 45, a cylindrical portion 47 of the sprocket 27, which is formed below the tooth portion 46 in FIG. Is fitted. Here, the sprocket 27 and the above-described sprocket 26
Is fitted so that the driving force can be transmitted by a dog clutch 48 composed of a plurality of claws formed on the respective opposing surfaces.

A lower (leftward in the traveling direction) support member 10 in FIG. 4 fixedly supported on the other side surface portion 8 of the snow removal device 4.
4, a substantially cylindrical joining member 53 is fixed on the upper side of the joining member 53 in FIG. It is arranged coaxially with the member 39 and fixed. A shaft portion 50 provided at a lower portion in FIG. 4 of the shaft member 39 is rotatably fitted to the inner peripheral side of the cylindrical member 49 via a bearing 51. Further, a small-diameter cylindrical portion 54 having a smaller diameter than the other portions is provided on the joining member 53 in FIG.
The small-diameter cylindrical portion 54 is rotatably fitted to a rotation support member 56 via a bush 55.

In the above, the driving force transmitted from the auger blower driving hydraulic motor 18 via the blower speed reducer 19 rotates the sprocket 26 via the sprocket 21 and the chain 25, and this rotation causes the connecting member 32 to rotate.
Rotates. Then, a shear pin 38 is attached to the connecting member 32.
Auger 3 connected by means of rotating sprocket 2
Sprocket 2 fitted to dog 6 by dog clutch 48
7 rotates.

A support arm 57 extending forward in the traveling direction is fixed to the rotation support member 45, and a support arm 5 extending in the same direction is fixed to the rotation support member 56.
8 is fixed, and a snow compaction device 5 is provided on the tip side of the support arms 57 and 58. In addition,
Each of the support arms 57 and 58 is provided with a respective rotation support member 4.
The rotation of 5, 56 allows the swing around the rotation axis.

Next, the snow compaction device 5 will be described. The snow pulverizing device 5 includes a substantially cylindrical fixing member 59 fixed to the distal ends of the support arms 57 and 58, respectively.
The fixing members 59 and 60 have their inner peripheral portions positioned vertically and coaxially in FIG. A rotating member 62 is rotatably fitted to the inner peripheral side of the upper fixing member 59 in FIG. 4 via a bearing 61. The rotating member 62 has a shaft portion 63 fitted to the bearing 61 and a flange portion 64 formed on the lower side in FIG. 4 and having a larger diameter than the shaft portion 63. The sprocket 29 is fitted and fixed to the part 63 on the side opposite to the flange part 64 by a spline. Further, a protruding shaft portion 65 is provided below the flange portion 64 of the rotating member 62 in FIG.
A flange member 67 is rotatably fitted on the outer peripheral side of the protruding shaft portion 65 via a bearing 66. Here, the flange member 67 and the flange portion 64 of the rotating member 62 are fixedly connected by a shear pin 68. In addition, this shear pin 68
Is the same as the shear pin 38 provided on the auger 3.

The flange member 67 is provided with the cutter drum 6.
9 is fixed to the center position of a perforated disk-shaped support plate 70 fixed to the inner peripheral portion on the upper side in FIG. A perforated disk-shaped support plate 72 is fixed to an inner peripheral portion of the lower side of the cutter drum 69 in FIG. 4, and a protruding shaft projecting downward in FIG. A support shaft member 74 having a portion 73 is fixed. Then, the projecting shaft portion 7 of the support shaft member 74
3 is rotatably fitted to the inner peripheral side of the fixing member 60 via a bearing 75.

In the above, the driving force for rotating the sprocket 27 is transmitted through the chain 28 to the sprocket 29.
To rotate it, and this rotation causes the rotation member 6 to rotate.
2. The cutter drum 69 is rotated via a flange member 67 and the like connected thereto by a shear pin 68.

As shown in FIG. 7, a plurality of parallelogram-shaped chips 76 are arranged on the outer periphery of the cutter drum 69 at a predetermined pitch so that the cutting blade 77 is positioned radially outward and on the distal end side in the rotational direction. As shown in FIGS. 8 and 9, these chips 76 are arranged so that the closest ones are inclined at a predetermined angle along the rotation direction. Note that this chip 76
It is a device for crushing the compacted snow, and a device having a tapered shape as shown in FIGS. 10 and 11 may be employed. A substantially semi-cylindrical cover 7 having an inner periphery slightly larger in diameter than the rotation diameter of the tip of the cutting edge 77 of the tip 76.
8 is mounted between the two support arms 57 and 58 so as to cover the upper outer peripheral portion of the cutter drum 69 when performing the snow pulverizing operation (see FIG. 1).

Here, as shown in FIGS. 12 and 13, both sides 7 and 8 of the snow removing device 4 have inclined members 8 which extend upward and incline toward the front in the traveling direction.
0, 81 are provided, respectively.
At predetermined positions 0 and 81, mounting plates 82 and 83 are provided which extend substantially perpendicularly upward with respect to the extending direction of the inclined members 80 and 81, respectively. Then, each of the mounting plates 82, 83
Cylinders 84 and 85 are connected between the upper end of the support arm 57 and the support arms 57 and 58, respectively.
7, 58 swing so as to move the snow compaction device 5 up and down. These cylinders 84,
Numeral 85 is driven by being remotely operated by a control switch (not shown) provided in the driver's seat of the traveling vehicle 2 and extended when the snow compaction device 5 is used, as shown by solid lines in FIGS. 12 and 13. The snow crushing device 5 is positioned slightly below the auger 3 so that the snow crushing can be crushed. When not used, the snow crushing device 5 is reduced in length as shown by a two-dot chain line in FIGS. To be stored above the auger 3.

As shown in FIGS. 12 and 14, the support arm 57 is provided with an adjusting mechanism 86 for adjusting the tension of the chain 28. This adjusting mechanism 86
Is a contact member 8 that contacts the upper side 28a of the chain 28.
7 and a screw member 8 for moving the contact member 87 in the direction of the lower side 28b of the chain 28 (or in the direction opposite thereto).
8 and a nut member 89.

On the other hand, on the support arm 58 side, as shown in FIGS. 13 and 15, a position display mechanism 90 for visually confirming the vertical position of the snow compaction device 5 from the driver's seat.
Is provided. The position display mechanism 90 includes a standard rod 91 having a lower end swingably supported by the support arm 58 and having a memory in the length direction, and a standard rod 91.
The standard plate 9 attached to the inclined member 81
By reading the memory of the standard rod 91 at the position of the standard plate 92, the height of the snow pulverizing device 5 can be easily confirmed visually.

According to the snow remover 1 having the above-described configuration, first, when the snow remover 1 is moved to a snow removal place without performing snow removal, a control switch (not shown) provided at the driver's seat of the traveling vehicle 2. , The cylinder 11 is extended so that the auger 3 and the snow removal device 4 are raised so as not to obstruct the traveling, and the cylinder 84,
In a state in which 85 is in a contracted state and the snow pulverizing device 5 is stored,
The driving force of the hydraulic pump 13 is switched to only the driving force for traveling of the traveling vehicle 2, and the vehicle travels without operating the auger 3, the snow removal device 4, and the snow compaction device 5.

When the snow is not in the snow compaction state and the snow can be collected well by the auger 3 without using the snow compaction device 5, not shown is provided in the driver's seat of the traveling vehicle 2. By appropriately operating the control switch, the cylinder 11 is extended and the auger 3 and the snow removal device 4 are moved.
The auger 3 and the snow removal device 4 are operated while the traveling vehicle is driven by the hydraulic pump 13 in a state where the cylinders 84 and 85 are contracted and the snow compaction device 5 is housed. Thereby, as the traveling vehicle 2 advances, the snow is collected at the center by the rotation of the auger 3 and the auger 3
, The snow is removed from the snow removal cylinder 24 by the rotation of the blower 23 of the snow removal device 4 provided behind.

In a place where snow is in a snow compaction state, such as at a level crossing, the cylinder 11 is extended by appropriately operating a control switch (not shown) provided on the driver's seat of the traveling vehicle 2 to set the auger and the snow removal device. Is set in the lowered state and the cylinders 84 and 85 are set in the extended state,
The auger 3 and the snow removal device 4 are operated while the traveling vehicle 2 is traveled by the hydraulic pump 13 in a state where is lowered. As a result, the cutter drum 69 of the snow pulverizing device 5 connected to the auger 3 via the chain 28 rotates, and as the traveling vehicle 2 travels, the chip 76 attached to the cutter drum 69 becomes main. The crushed snow is crushed using the cutting edge 77, and the crushed snow is then collected by the rear auger 3 in the center, and
Blower 23 of snow removal device 4 provided behind auger 3
, The snow is satisfactorily removed from the snow removal cylinder 24.

As described above, the snow blower 1 of the present embodiment
According to this method, it is possible to satisfactorily remove snow even at a railroad crossing or the like, particularly in a place where snow tends to be compacted, without depending on human power. Therefore, the speed of snow removal can be increased, and the number of snow removers can be significantly reduced. Moreover, this snowplow 1
Is obtained by adding a snow pulverizing device 5 to a conventional snow removing machine.
If the related parts such as the chain 28, the sprockets 27, 28, and the cylinders 84, 85, etc., necessary for their operation are prepared as attachments, the conventional snow removing machine can be improved to the snow removing machine 1 having the above-mentioned effects at a low cost. can do. Further, as described above, if the snow compaction device 5 is raised and set in the missed state, it is possible to efficiently remove snow when the snow is not in the compacted condition. Can be remotely controlled from the driver's seat side.
Furthermore, since a road vehicle is used as the traveling vehicle 2, the vehicle can travel on a general road, and it is not necessary to travel on a track, so that the moving range is widened.

[0030]

As described in detail above, according to the snow remover of the present invention, the snow compaction device crushes the compacted snow in front of the auger, so that the crushed snow can be collected more efficiently by the auger. As a result, the snow is removed well by the snow removing device. Therefore, the following effects are obtained. Irrespective of human power, snow can be satisfactorily removed even in places where snow is compacted, such as at railroad crossings, so that snow removal can be speeded up and the number of snow removers can be significantly reduced. Also, the rotation axis of the auger
A support arm that swings around the center and extends forward
A crushed snow at the tip of the support arm.
Ku provided a rotary snow groomer grinding apparatus, and since the axis of rotation of the auger is connected via a chain to the axis of rotation of the snow groomer crusher, via the switch En during rotation of the auger and snow groomer grinding apparatus, the support arm force of the swing is allowed Keru with press snow groomer pulverizer in compacted snow surface direction is added. Therefore, the following effects are obtained. (1) The snow compaction device can be pressed sufficiently against the surface of the compacted snow. (2) Since the pressing force for pressing the snow compaction device against the surface of the compacted snow is automatically generated by the rotation of the auger and the compaction device, no extra device is required. (3) When the resistance from the snow compaction surface increases, the rotation of the snow compaction device is hindered.On the other hand, since the auger is about to rotate, the more the resistance from the snow compaction surface, the more the support arm is swung. The force of pressing the snow pulverizing device against the snow compacting surface is increased, and the snow compacting device is more likely to bite into the snow compacting surface. (4) The chain allows a certain amount of movement, so it can absorb the reaction force of the impact force, avoid the destruction and overload of the drive unit, and drive even if the clearance changes due to temperature change. Does not interfere with

[Brief description of the drawings]

FIG. 1 is a side view showing a snow blower according to an embodiment of the present invention.

FIG. 2 is a plan view of the snow blower.

FIG. 3 is a system diagram showing a transmission system of a driving force of the snow removing machine.

FIG. 4 is a plan sectional view showing an auger, a compacted snow crusher, and the like of the snow removing machine.

FIG. 5 is a front view showing an auger of the snow blower.

FIG. 6 is a development view showing an auger of the snow blower.

FIG. 7 is a side view showing an example of a cutter drum and a cutter of the snow pulverizing device of the snow removing machine.

FIG. 8 is a development view of a cutter drum of the snow pulverizing device of the snow removing machine.

FIG. 9 is a front view showing an example of a cutter of the snow pulverizing device of the snow removing machine.

FIG. 10 is a side view showing another example of the cutter drum and the cutter of the snow pulverizing device of the snow removing machine.

FIG. 11 is a front view showing another example of the cutter of the snow pulverizing device of the snow removing machine.

FIG. 12 is a side view of a main part of the snow blower as viewed from above in FIG.

FIG. 13 is a side view of a main part of the snow plow as viewed from below in FIG.

FIG. 14 is a sectional view taken along line AA in FIG.

FIG. 15 is a view as seen from the arrow B in FIG. 13;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Snow remover, 2 ... Running vehicle, 3 ... Auger, 4 ... Snow removal device, 5 ... Snow compaction crusher

──────────────────────────────────────────────────続 き Continued on the front page (72) Susumu Ito 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company (72) Inventor Seiji Yamada 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Inside Japan Railway Company (72) Inventor Seiwa Ito 1-6-5 Marunouchi, Chiyoda-ku, Tokyo Inside Japan Railway Company (72) Inventor Tadashi Sato 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company Inside (72) Inventor Hiroo Sato 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company (72) Inventor Yoshiaki Kazama 1-2-1 Akiba, Niigata, Niigata Niigata Marine Engineering Oyama Works Co., Ltd. (56) References JP-A-63-27608 (JP, A) JP, Y1) (58) investigated the field (Int.Cl. ^7, DB name) E01H 5/08 - 5/09 E01H 5/12

Claims (1)

(57) [Claims] 1. A snow removing machine having a rotary auger for snow collection and a snow removal device provided behind the auger and for removing snow collected by the auger in front of a traveling vehicle, wherein the rotation of the auger is performed. It is supported swingably around the axis and is
And a support arm extending from the support arm.
There is no rotary snow pulverizer to break the snow
And a rotating shaft of the auger is connected to a rotating shaft of the snow pulverizing device via a chain.