JP2021167522A - Walking-type snow blower - Google Patents

Abstract

To provide a walking-type snow blower that can perform snow removal work while preventing or suppressing vibration and shaking of a traveling vehicle body even when the snow is hard.SOLUTION: A snow removal work unit has snow digging arms 19 that extend from left and right auger support shafts 17 toward the outside in a radial direction of a snow scraping auger 18, and is rotationally driven by the auger support shafts 17. The snow digging arm 19 extending from the left auger support shaft 17 and the snow digging arm 19 extending from the right auger support shaft 17 are arranged in different phases in a circumferential direction of the snow scraping auger 18.SELECTED DRAWING: Figure 2

Description

The present invention relates to a walking snowplow.

The walking snow remover is provided with a traveling vehicle body, a control handle extending rearward from the traveling vehicle body, and a snow removal work unit connected to the front portion of the traveling vehicle body. The snow removal work unit is the width of the vehicle body of the snow removal work unit. An auger drive mechanism located in the middle part in the direction, an auger support shaft that extends from the auger drive mechanism to the left and right of the vehicle body along the width direction of the vehicle body, and is rotationally driven by the auger drive mechanism, and left and right auger supports. Some are equipped with a spiral snow shoveling auger that is supported by a shaft and is rotationally driven by an auger support shaft.

As a walking type snowplow of this type, for example, there is a snowplow shown in Patent Document 1. In the one shown in Patent Document 1, a transmission mechanism as an auger drive mechanism is provided, a shaft as a left and right auger support shaft is provided, and an auger blade as a spiral snow scraping auger is provided.

Jikkenhei 2-112715

Conventionally, when the snow at the work place is solidified, the traveling vehicle body vibrates or shakes due to the strong snow scraping resistance applied to the snow scraping auger. Then, the vibration and swaying motion of the traveling vehicle body are transmitted to the steering wheel, and it becomes difficult to support the steering wheel. In addition, it becomes difficult to operate the operating tool attached to the steering wheel.

The present invention provides a walking type snow remover capable of removing snow while preventing or suppressing vibration and shaking of a traveling vehicle body even when the snow is hard.

The walking snowplow according to the present invention
A traveling vehicle body, a control handle extending rearward from the traveling vehicle body, and a snow removing work portion connected to the front portion of the traveling vehicle body are provided, and the snow removing working portion is provided in the vehicle body width direction of the snow removing working portion. An auger drive mechanism located in the middle portion, an auger support shaft extending from the auger drive mechanism in the left-right direction of the vehicle body along the width direction of the vehicle body, and rotationally driven by the auger drive mechanism, and the left and right auger supports. A spiral auger supported by a shaft and rotationally driven by the auger support shaft, and an auger support shaft extending outward in the radial direction from the left and right auger support shafts. The snow digging arm, which has a snow digging arm rotationally driven by the left auger support shaft, and the snow digging arm extending from the right auger support shaft are of the snow scraping auger. They are arranged in different phases in the circumferential direction.

According to this configuration, the snow digging by the snow digging arm unravels the snow mass, and while the snow mass is being unraveled, the snow scraping auger performs the snow scraping, so the snow that remains solid is targeted for snow scraping. Compared to, the snow scraping resistance applied to the snow scraping auger is weakened. Since the snow digging by the left snow digging arm and the snow digging by the right snow digging arm are performed at different timings, strong snow digging resistance is temporarily applied to the auger support axis as if it were performed at the same timing. Since it does not hang, even if the snow to be removed is hard, the snow removal work can be performed while preventing the traveling vehicle body from vibrating or shaking. Further, even if the traveling vehicle body vibrates or sways, the snow removal work can be performed while keeping the vibration and sway smaller than the hardness of the snow.

In the present invention
It is preferable that the snow digging arms extending from the left and right auger support shafts are extended from a plurality of locations in the circumferential direction of the auger support shafts.

According to this configuration, snow digging by the snow digging arm is performed at a small pitch, so compared to performing at a large pitch, the snow digging resistance applied to the snow digging arm is weakened and the vibration and shaking movement of the running vehicle body can be reduced. It can be suppressed to a smaller size.

In the present invention
It is preferable that the snow digging arm is extended with its extended end located on the outer periphery of the auger drive mechanism.

According to this configuration, since the snow located below the auger drive mechanism is dug by the snow digging arm, it is possible to prevent snow removal leakage below the auger drive mechanism.

In the present invention
It is preferable that the reinforcing member is connected to the extended end side of the snow digging arm and the auger support shaft.

According to this configuration, since the snow digging arm is reinforced by a reinforcing member and has excellent rigidity, the snow digging arm can firmly perform snow digging even if the snow is hard and hard.

In the present invention
The reinforcing member is preferably a round bar member.

According to this configuration, the snow digging arm can be firmly reinforced while weakening the drive resistance caused by the reinforcing member entering the snow, as compared with the reinforcing member being a plate material or a square lumber.

It is a left side view which shows the whole of a walking type snow blower. It is a front view which shows the snow scraping part. FIG. 2 is a cross-sectional view taken along the line III-III in FIG.

Hereinafter, embodiments that are an example of the present invention will be described with reference to the drawings.
In the following description, regarding the traveling vehicle body of the walking type snow remover, the direction of the arrow F shown in FIG. 1 is "front of the vehicle body", the direction of the arrow B is "rear of the vehicle body", and the direction of the arrow U is "upper of the vehicle body". , The direction of the arrow D is "downward of the vehicle body", the direction of the front surface side in FIG. 1 is "left side of the vehicle body", and the direction of the back surface side is "right side of the vehicle body".

[Overall configuration of walking snowplow]
As shown in FIG. 1, the walking snowplow includes a traveling vehicle body equipped with a pair of left and right crawler-type traveling devices 1. The steering handle 3 is extended rearward and upward from the rear part of the vehicle body frame 2 in the traveling vehicle body. The control handle 3 is composed of a pair of left and right control sticks 3a. The snow removal work unit 4 is connected to the front portion of the traveling vehicle body. A driving portion 6 having an engine 5 is formed in a portion of the traveling vehicle body behind the snow removing work portion 4. The portion of the snow removal work portion 4 from the rear portion to the front portion of the traveling vehicle body is covered from the lateral side by the left and right lateral covers 7. Between the left and right horizontal covers 7, a portion of the snow removal work portion 4 from the rear portion to the front portion of the traveling vehicle body is covered by the upper cover 8.

The steering wheel 3 is provided with a grip lever type steering lever 9 for operating the left and right steering clutches (not shown), and an operation panel 10. The operation panel 10 is provided with a forward / backward lever 11 for switching the forward / backward movement of the traveling device 1.

[Structure of snow removal work unit]
As shown in FIG. 1, the snow removal work unit 4 has an auger housing 12 supported by the front portion of the vehicle body frame 2. As shown in FIG. 2, inside the auger housing 12, an auger drive mechanism 13 located in the middle of the auger housing 12 in the width direction of the vehicle body, and a pair of left and right snow scrapers driven by the auger drive mechanism 13 to scrape snow. A portion 14 is provided. As shown in FIG. 1, a blower 15 is provided behind the auger housing 12 to eject the snow scraped by the left and right snow scraping portions 14 upward on the vehicle body. Above the blower 15, a shooter 16 is provided to guide the snow ejected by the blower 15 to the discharge destination. The shooter 16 is provided in a state of inserting a through hole provided in the upper cover 8.

[Structure of snow scraping part]
As shown in FIG. 2, the left snow scraping portion 14 has a left auger support shaft 17 extended from the auger drive mechanism 13 in a lateral direction to the left of the vehicle body along the width direction of the vehicle body. The right snow scraping portion 14 has a right auger support shaft 17 extended from the auger drive mechanism 13 in a lateral direction to the right of the vehicle body along the width direction of the vehicle body. The extended ends of the left and right auger support shafts 17 are rotatably supported by an arm portion 12a (see FIG. 1) provided in the auger housing 12. The auger drive mechanism 13 has a gear case 13a. The gear case 13a has an input shaft 13b projecting backward from the gear case 13a and transmitting power from the engine 5, and an input shaft 13b provided inside the gear case 13a to transmit the power of the input shaft 13b to the left and right auger support shafts 17. It is equipped with a gear mechanism. The gear mechanism has a worm 13c provided on the input shaft 13b and a worm gear 13d interlocked with the left and right auger support shafts 17 in a state of being meshed with the worm 13c. The left and right auger support shafts 17 are rotationally driven by the auger drive mechanism 13.

As shown in FIG. 2, the left and right snow scraping portions 14 are formed from the spiral snow scraping auger 18 supported by the auger support shaft 17 and the auger support shaft 17 extending outward in the radial direction of the snow scraping auger 18. It has a snow digging arm 19. In the present embodiment, the left and right snow scraping portions 14 are provided with two snow scraping augers 18 g, and are provided with two snow digging arms 19 extended from two locations in the circumferential direction of the auger support shaft 17. ing. As shown in FIG. 3, the two snow digging arms 19 are composed of one strip-shaped member whose intermediate portion is externally fitted to the auger support shaft 17. The snow scraping auger 18 is rotationally driven by the auger support shaft 17 with the axis of the auger support shaft 17 as the center of rotation. Specifically, the ends of each snow scraping auger 18 on the auger drive mechanism 13 side are interlocked and connected to the auger support shaft 17 via an arm-shaped first support member 20. An intermediate portion of each snow scraping auger 18 in the lateral width direction of the vehicle body is interlocked and connected to the auger support shaft 17 via an arm-shaped second support member 21. The ends of each snow scraping auger 18 on the opposite side to the auger drive mechanism 13 side are interlocked and connected to the auger support shaft 17 via a disk-shaped third support member 22.

As shown in FIGS. 2 and 3, each snow digging arm 19 is reinforced by a reinforcing member 23 connected over the extended end portion 19a of the snow digging arm 19 and the auger support shaft 17. The reinforcing member 23 and the auger support shaft 17 are connected via the second support member 21. The reinforcing member 23 is composed of a round bar member.

As shown in FIG. 2, each snow digging arm 19 has an auger in a state where the extended end 19a is displaced toward the auger drive mechanism 13 with respect to the base 19b and is located on the outer periphery of the auger drive mechanism 13. It extends from the support shaft 17. The lower part of the auger drive mechanism 13 is removed from snow by the extension end side portion of the snow digging arm 19.

As shown in FIG. 3, the two snow digging arms 19 in the left and right snow scraping portions 14 are arranged at equal intervals in the circumferential direction of the snow scraping auger 18. As shown in FIG. 3, the snow digging arm 19 in the left and right snow scraping portions 14 is a snow digging auger 18 in which the snow digging arm 19 in the left snow scraping portion 14 and the snow digging arm 19 in the right snow scraping portion 14 It is provided in a state where it is located in a different phase in the circumferential direction of.

In the left and right snow scraping parts 14 of the snow removal work part 4, the power from the engine 5 is transmitted to the auger drive mechanism 13, the auger support shaft 17 is rotationally driven by the auger drive mechanism 13, and the snow digging arm 19 is the auger support shaft. Even if the snow is rotationally driven by the 17 and the snow is solidified, the snow digging by the snow digging arm 19 releases the solidified snow. The snow digging by the snow digging arm 19 in the left snow scraping part 14 and the snow digging by the snow digging arm 19 in the right snow scraping part 14 are performed at different timings, and strong snow digging resistance is not applied at one time. Snow digging is done in the state. The snow scraping auger 18 is rotationally driven by the auger support shaft 17, and the snow scraping auger 18 performs scraping of snow, and the scraped snow is opened in the rear wall portion 12b of the auger housing 12 (FIG. 2). It is supplied to the blower 15 via (see).

[Another Embodiment]
(1) In the above-described embodiment, two snow-scraping augers 18 are provided on the left and right snow-scraping portions 14, but only one or three or more snow-scraping augers may be provided. ..

(2) In the above-described embodiment, the left and right snow scraping portions 14 are provided with two snow digging arms 19, but only one or three or more snow digging arms 19 are provided. You may.

(3) In the above-described embodiment, the example in which the reinforcing member 23 is provided is shown, but the reinforcing member 23 may not be provided. In the case where the reinforcing member 23 is provided, for example, a square bar member, an angle member, a strip member, or the like may be adopted as the reinforcing member 23.

The present invention is provided with a control handle extending rearward from the traveling vehicle body and a snow removal working portion connected to the front portion of the traveling vehicle body. An auger support shaft that extends along the width direction of the vehicle body and is rotationally driven by an auger drive mechanism, and a spiral snow shoveling auger that is supported by the left and right auger support shafts and is rotationally driven by the auger support shafts. It can be applied to a walking type snow remover.

3 Steering wheel 4 Snow removal work unit 13 Ogre drive mechanism 17 Ogre support shaft 18 Snow scraping auger 19 Snow digging arm 23 Reinforcing member

Claims (5)

With the running body
The steering wheel that extends rearward from the traveling vehicle body,
A snow removal work unit connected to the front portion of the traveling vehicle body is provided.
The snow removal work unit
An auger drive mechanism located in the middle of the snow removal work section in the width direction of the vehicle body,
An auger support shaft that extends from the auger drive mechanism to the left and right of the vehicle body along the width direction of the vehicle body and is rotationally driven by the auger drive mechanism.
A spiral snow-scraping auger supported by the left and right auger support shafts and rotationally driven by the auger support shafts,
It has a snow digging arm that extends from the left and right auger support shafts toward the outside in the radial direction of the snow scraping auger and is rotationally driven by the auger support shafts.
The snow digging arm extending from the left auger support shaft and the snow digging arm extending from the right auger support shaft are walkable snow removers arranged in different phases in the circumferential direction of the snow scraping auger. The walking snowplow according to claim 1, wherein the snow digging arms extending from the left and right auger support shafts are extended from a plurality of locations in the circumferential direction of the auger support shafts. The walkable snowplow according to claim 1 or 2, wherein the snow digging arm is extended with its extended end located on the outer periphery of the auger drive mechanism. The walking type snow remover according to any one of claims 1 to 3, wherein a reinforcing member is connected to the extended end side of the snow digging arm and the auger support shaft. The walking snowplow according to claim 4, wherein the reinforcing member is a round bar member.

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