JPH0621936Y2 - Snow removal equipment - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a snow removing device to be attached to a tractor, a crawler type self-propelled vehicle body or the like.

[Prior Art] Conventionally, an auger case is mounted on a rear portion of a tractor as a vehicle of this type through a three-point link mechanism, and a snow removing cylinder is erected on an upper portion of the auger case, and a lower portion of the snow removing cylinder is provided. Is equipped with a blower connected to the PTO shaft of the tractor, and an auger screw connected to the PTO shaft is installed horizontally in the auger case, and snow is collected by the auger screw as the tractor runs backward. Snow blowers that are discharged from a snow canister by a blower are well known.

However, in such a snow remover, snow is scraped by an auger screw and discharged from a snow discharge tube by a blower, but such a snow remover is effective when there is a relatively large amount of snow. However, when there was little snow, there was a problem that the snow removal efficiency was very poor. That is, when the amount of snow is relatively small, even if the auger screw rotates, the snow is not sent to the blower side, and the auger screw and the blower run idle until a predetermined amount of snow is collected. Further, when removing snow with an auger screw or the like, the tractor is operated at an extremely low speed, so there is a problem that the snow removal time becomes long despite the small snow removal amount.

As a snow remover that solves such problems,
No. 10519 discloses that a traveling machine body is provided with an auger screw that scrapes snow to the side of the machine body and a blade that is located in front of this machine screw and that removes the snow at the roadside while pressing the snow. It can be rotated up and down by a blade in front of the auger screw when there is relatively little snow, and when there is a lot of snow, the cylinder device jumps up the blade and removes the snow with the auger screw. A snow blower configured to selectively remove snow with either a blade or a blade has been proposed.

[Problems to be Solved by the Invention] In the above-mentioned conventional example, the blade is provided rotatably to the upper side of the auger screw by a cylinder device, and either the auger screw or the blade can selectively remove snow according to the amount of snow. However, the height of the auger case of the auger screw and the height of the blade are formed to be almost the same size,
Moreover, the upper and lower sides of the blade are fixed to the traveling machine body by the Y-shaped frame, and the turnbuckle type screw bar is interposed in the middle of the Y-shaped frame to finely adjust the mounting angle of the blade. It is impossible to guide the snow discharged from the blade to the auger screw side by inclining it largely to the side. In other words, it is only possible to remove snow selectively by either auger screw or blade. Therefore, when the snow is removed by the blade, it is removed on the side of the blade while pressing the snow.However, in such a snow removal method, when removing snow in a wide area, it is removed along with traveling of the traveling machine body. Since the snow rises while being pressed against the side of the traveling body, and then the raised portion is removed again, the snow removal efficiency is poor.

It is an object of the present invention to solve the above problems and provide a snow remover capable of efficiently removing snow even when there is little snow.

[Means for Solving the Problems] The present invention is directed to an auger case which is mounted on a traveling body so as to be able to move up and down and has an opening at the rear side, a snow discharge tube standing on the upper part of the auger case, and a lower side of the snow discharge tube. A blower arranged in
An auger screw laterally provided in the opening of the auger case, a snow removing plate disposed behind the auger screw via a mounting arm pivotally attached to the traveling body side, and the snow removing plate. In a snow remover equipped with a cylinder device connected to the mounting arm rotatable above a screw, the height of the snow removing plate is formed lower than the opening height of the auger case, and the mounting arm is It has a straight rod portion pivotally attached to both sides of the auger case and a slant rod portion bent downward from the straight rod portion, and the upper side of the snow removing plate is pivotally supported at the tip of the slant rod portion, and snow is removed. A connecting member that connects the lower portion of the plate and the boundary portion between the straight rod portion and the oblique rod portion of the mounting arm is provided, and a long hole is provided at the base end of the connecting member, and the boundary portion of the mounting arm is provided. A female screw hole is provided A long hole in which the transmural inserted the snow removing plate and connecting the connecting member and the mounting arm in lever-like screw rod screwed into the female screw hole provided tiltably on the auger case side.

[Operation] In the snow removal machine of the present invention, a snow removal device is attached to the tractor during snow accumulation, and when there is a lot of snow, the rod of the cylinder holds the snow removal plate upwards, and the auger screw is used to remove the snow. When the number of snowfalls is small, the snow removing plate is lowered by the rod of the cylinder, and the snow removing plate is moved as the tractor travels to remove snow. In addition, if there is little snowfall and you want to fly the snow, loosen the screw rod once, tilt the snow removing plate to the auger screw side, and then tighten the screw rod again to fix it. They will get over the board and be guided inside the auger case. Then, after a predetermined amount of snow has accumulated, the auger screw can be rotated to remove the accumulated snow by flying it far away through the snow canister.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the accompanying drawings.

1 to 4 show a first embodiment of the present invention,
Reference numeral 1 denotes a four-wheel drive type tractor which is a traveling machine body, and a rear portion of the tractor 1 is provided with an auger case 3 opened rearward via a three-point link mechanism 2 so as to be vertically movable. Incidentally, 3
A is an opening. The auger case 3 has side plates 5 projecting rearward from both sides of a case body 4 which is erected in an arc shape, and a communication portion 6 is recessed in the center of the case body 4. Reference numeral 7 denotes a blower rotatably provided on the communication portion 6, and the rotation shaft 8 of the blower 7 has a tractor 1
PTO shaft 9 is connected. The reference numeral 10 designates a snow discharge tube which is connected to the communication section 6 and rotatably stands on the upper part of the auger case 3. The head 10A provided on the top of the snow removal tube 10 is provided on the driver's seat of the tractor 1. A lever (not shown) is connected so that the elevation angle of the head 10A can be remotely controlled. Reference numeral 11 is an auger screw which is installed laterally on the auger case 3 and scrapes snow in the center, and both ends of a rotary shaft 12 of the auger screw 11 are rotatably supported by the side plate 5, and the auger case is also provided. A gear (not shown) in a gear box 13 fixed to the gear 3 is meshed with a gear (not shown) provided substantially in the center of the rotary shaft 12, and the rotational force of the rotary shaft 8 of the blower 7 is It can be transmitted to the rotary shaft 12 of the auger screw 11 via the gear in the gear box 13.

Reference numeral 14 denotes a snow removing plate provided behind the auger case 3, and the height H1 of the snow removing plate 14 is formed in an arc shape so as to be lower than the opening height H2 of the auger case.
The snow removing plate 14 is rotatably attached to the auger case 3 via a pair of left and right attachment arms 15. The mounting arm 15 has a shaft centered on a side portion of the auger case 3 in a substantially central portion thereof.
A straight rod portion 16 pivotally attached by 18 and a slant rod portion 17 bent downward from the straight rod portion 16 are provided, and a tip 19 of the slant rod portion 17 is rotatably attached to a lower portion of the snow removing plate 14. Connected and removed snow 14
When is grounded, the lower surface of the straight rod portion 16 is locked to the upper surface of the side plate 5.

Reference numeral 20 denotes a connecting member that connects the snow removing plate 14 and the mounting arm 15 in a continuous manner. A tip end 21 of the connecting member 20 is rotatably connected to an upper portion of the snow removing plate 14, and a base end 22 of the connecting member 20 is The mounting arm 15 is fixed to a female screw hole 23 provided at a boundary portion between the straight rod portion 16 and the slanted rod portion 17. In this case, a long hole 24 is formed at the base end 22 of the connecting member 20, and a lever rod-shaped screw rod 25 penetrating the long hole 24 is inserted into the female screw hole 23 with a washer 26 interposed. The washer 26 is screwed and the washer 26 presses the connecting member 20 by tightening the screw rod 25 to fix the snow removing plate 14. Then, by loosening the screw rod 25, the screw rod 25 can be moved in the elongated hole 24, so that the snow removal plate 14 can be adjusted by changing the attachment angle θ of the snow removal plate 14. .

Reference numeral 27 denotes a hydraulic cylinder device interposed between the auger case 3 and the mounting arm 1. A rod end of the cylinder body 28 is pivotally supported on a side portion of the auger case 3 and a rod 29 provided to the cylinder body 28 so as to be movable back and forth. Is attached to the base end 30 of the mounting arm 15. A pressure resistant boss (not shown) connected to a hydraulic pump (not shown) on the tractor 1 side is connected to the cylinder body 28 via an operation valve (not shown).

Next, the operation of the above configuration will be described. When there is a large amount of snow, the hydraulic pump provided on the tractor 1 side and the operating lever of the operating valve are operated to contract the rod 29 of the cylinder device 27 and lift the snow removing plate 14 upward as indicated by the chain line. When the tractor 1 is operated at a low speed in this state and the PTO shaft 9 is driven, the auger screw 11
As a result, the snow is collected in the center, and the blower 7 discharges the snow from the snow discharge tube 10.

Next, when the amount of snow is small, an operating lever (not shown) provided on the tractor 1 side is operated to extend the rod 29 of the cylinder device 27 to lower the snow removing plate 14 and to install the snow removing plate (14 As indicated by the solid line, the snow can be removed by moving the tractor 1 in a substantially upright state and pressing the snow by the snow removing plate 14 to move it to an open space.

Furthermore, if the amount of snow is small and you want to fly the snow, after loosening the screw rod 25 once, after tilting the snow removing plate 14 as shown by the one-dot chain line, tighten the screw rod 25 again to fix it, When the tractor 1 is driven relatively quickly, the snow will get over the sloped snow removing plate 14 and collect in the auger case 3. Then, after a predetermined amount of snow is accumulated, the PTO shaft 9 is driven to fly the accumulated snow through the snow removing cylinder 10 to a distance to remove the snow. In addition, when the snow carried to the tractor is to be blown off, the snow is put between the snow removing plate 14 and the auger case 3 shown by the solid line, and the PTO shaft 9 is driven to drive the auger screw 11. Also, the blower 7 allows the snow to fly farther through the snow canister 10. In this case, when the snow removing plate 14 is tilted as shown in FIG.
The snow can be discharged to a desired place by setting the slanting position.

As described above, in the present invention, either the auger screw 11 or the snow removing plate 14 can be selectively used according to the snow cover condition, and in the present invention, the height H1 of the snow removing plate 14 is set to the auger. By setting the opening height H2 lower than the case and adjusting the mounting angle of the snow removal plate 14, when the snow removal plate 14 is tilted toward the auger screw 11 side, the snow collected by the snow removal plate 14 is removed by the auger screw 11. The snow collected by the snow removing plate 14 can be blown far away through the snow removing cylinder 10 by being reliably guided to the side and the rotation of the auger screw 11, and more efficient snow removing work can be performed.

The present invention is not limited to the above-described embodiment, and for example, as shown in FIG. 5, the auger case 3 may be provided at the front part of the crawler type self-propelled vehicle body 31 so as to be vertically movable and rotatable.
Further, as shown in FIG. 6, the tip end side of the mounting arm 15 has a structure as shown in FIG. 3, and the snow removing plate 14 is rotatably provided,
Further, as shown in FIG. 7, the snow removing plate 14 is fixed to the back surface of the snow removing plate 14 so that the snow removing plate 14 can be directly connected via the three-point link mechanism 2 of the tractor 1 or can be used together with the mounting arm 15. Various modifications are possible, such as may. Further, the cylinder device is not limited to hydraulic pressure, and may be air, and the rod may be pivotally attached to the snow removing plate.

[Advantages of the Invention] The present invention is provided with an auger case which is mounted on a traveling body so as to be able to move up and down, and has an opening at the rear, a snow discharge tube which is erected on the upper part of the auger case, and which is disposed below the snow discharge tube. With a blower
An auger screw laterally provided in the opening of the auger case, a snow removing plate disposed behind the auger screw via a mounting arm pivotally attached to the traveling body side, and the snow removing plate. In a snow remover equipped with a cylinder device connected to the mounting arm rotatable above a screw, the height of the snow removing plate is formed lower than the opening height of the auger case, and the mounting arm is It has a straight rod portion pivotally attached to both sides of the auger case and a slant rod portion bent downward from the straight rod portion, and the upper side of the snow removing plate is pivotally supported at the tip of the slant rod portion, and snow is removed. A connecting member that connects the lower portion of the plate and the boundary portion between the straight rod portion and the oblique rod portion of the mounting arm is provided, and a long hole is provided at the base end of the connecting member, and the boundary portion of the mounting arm is provided. A female screw hole is provided There is much snow because the snow removing plate is tilted toward the auger case by connecting the mounting arm and the connecting member with a lever-shaped screw rod that is inserted into the long hole and screwed into the female screw hole. It is possible to provide a snow removing device that can efficiently perform snow removing work not only when the amount of snow is small.

[Brief description of drawings]

FIG. 1 is a perspective view showing the first embodiment, FIG. 2 is a side view of the same,
FIG. 3 is a sectional view of the main part, FIG. 4 is a schematic explanatory view of the same plane, FIG. 5 is a perspective view showing a second embodiment, FIG. 6 is a side view showing a third embodiment, and FIG. The drawing is a schematic explanatory view showing a fourth embodiment. DESCRIPTION OF SYMBOLS 1 ... Tractor (traveling body) 3 ... Auger case 3A ... Opening 7 ... Blower 10 ... Snow removal cylinder 11 ... Auger screw 14 ... Snow removing plate 15 ... Mounting arm 16 ... Straight rod 17 ... Oblique rod 20 ... Connecting member 24 … Long hole 23… Female screw hole 25… Screw rod 27… Cylinder device

Claims (1)

[Scope of utility model registration request] 1. An auger case which is mounted on a traveling machine body so as to be able to move up and down and has an opening at the rear side, a snow discharge cylinder standing upright on the upper part of the auger case, and a blower arranged below the snow discharge cylinder. An auger screw laterally provided in the opening of the auger case, a snow removing plate disposed behind the auger screw via a mounting arm pivotally attached to the traveling body side, and the snow removing plate. In a snow remover equipped with a cylinder device connected to the mounting arm rotatable above a screw, the height of the snow removing plate is formed lower than the opening height of the auger case, and the mounting arm is It has a straight rod portion pivotally attached to both sides of the auger case and a slant rod portion bent downward from the straight rod portion, and the upper side of the snow removing plate is pivotally supported at the tip of the slant rod portion, and snow is removed. The bottom of the plate and the A connecting member is provided which connects the boundary portion between the straight rod portion and the oblique rod portion of the arm, and a long hole is provided at the base end of the connecting member, and a female screw hole is provided at the boundary portion of the mounting arm. It is characterized in that the snow removing plate is provided so as to be tiltable toward the auger case by connecting the mounting arm and the connecting member with a lever-shaped screw rod that is inserted into the elongated hole and screwed into the female screw hole. snowblower.