KR20130047376A - Thatch crusher - Google Patents

Abstract

PURPOSE: A grass-clippings crushing device is provided to have a two stage roller structure consisting of rollers which have different rotational speeds and an adjustable gap between each other, thereby finely crushing fibers of grass clippings. CONSTITUTION: A grass-clippings crushing device comprises a driving source(20), a power transmission unit, a housing(10), a first roller unit, and a second roller unit. The housing has a hopper(11) into which grass clippings are put. The first roller unit is rotatably installed in the housing, and composed of a pair of rollers which rotate at different speeds by a power provided by the power transmission unit. A helical groove is formed on the circumferential surface of at least one between the pair of rollers. The second roller unit comprises a pair of rollers which rotate at different speeds by a power provided by the power transmission unit, and which re-crushes the grass clippings crushed by the first roller unit.

Description

Grass Crusher {THATCH CRUSHER}

The present invention relates to a grass clipping machine, and more particularly, to a grass clipping machine for grinding so as to fertilize grass clippings generated in a golf course.

Lawn clippings are materials generated after mowing the lawn, and a large amount of grass clippings are generated in a golf course where the grass occupies most of the stadium.

Since the grass clippings of the golf course belong to the workplace waste under the Waste Management Act, the grass clippings generated from the golf course must be treated, commissioned or recycled.

Direct treatment may include incineration and recycling, and recycling may be used to fertilize grass clippings.

In general, domestic golf courses are rarely equipped with incineration facilities, and in the case of consignment processing, it is expensive, so the clippings are often left uncut. Therefore, it requires a separate place for storing the grass clippings continuously generated, and if left unchanged on the road surface, the clippings come into contact with moisture and cause bad smell. In addition, the neglected grass clippings have a problem that can act as a latent of the grass pests to spread the damage to the pests of the golf course grass.

In addition, since more than 90% of the turf is made of fiber, it is necessary to finely grind it to fertilize the grass clippings.

On the other hand, golf courses use chemical fertilizers for the management of lawns. These chemical fertilizers are imported and supplied at a high price, and fertilizers must be fertilized separately after fertilizing the golf course lawns. There is.

The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a lawn clipping grinder that grinds grass clippings so as to liquid fertilizer.

In addition, the present invention is possible to adjust the gap while having a difference in the rotational speed between the rollers, so as to have a two-stage roller structure, to provide a grass clipping machine that can finely crush the fiber of the grass clippings another object is have.

In addition, the present invention is to provide a grass clipping machine that can be installed in the vibrating unit in the input unit so that the grass clippings can be uniformly injected, and to provide a scraper for removing foreign matter in each of the rollers, to further improve the work efficiency. There is another purpose.

In addition, the present invention does not require a separate storage place and to provide a grass clippings crushing device that can immediately treat the grass clippings to prevent odor or pests caused by the left grass clippings.

In addition, the present invention recycles turf clippings generated in the golf course as a liquid fertilizer, reducing the unnecessary costs, there is no hassle of separately fertilizing chemical fertilizers and pesticides, and also provides a grass clippings crushing device that can expect the effect of environmental protection. There is another purpose.

Grass clipping apparatus according to the present invention to achieve the above object, the drive source; A power transmission unit for transmitting power of the driving source; A housing having an input unit into which the lawn clippings are inserted; A pair of rollers rotatably installed in the housing and rotated at different speeds by power provided through the power transmission unit, and a helical groove is formed on an outer circumference of at least one of the pair of rollers A first roller portion being; A second roller positioned downstream of the first roller part, the second roller including a pair of rollers for regrinding the grass clippings pulverized in the first roller part while rotating at different speeds by the power provided through the power transmission part; Contains wealth.

It may be provided on each of the first roller portion and the second roller portion, it may further include a gap adjusting unit for adjusting the interval between the pair of rollers.

The input unit may be provided with a vibration device for generating a vibration.

The driving unit may control each of the pair of rollers of the first roller part and the second roller part to be rotated forward or reverse.

A scraper for removing the foreign matter of each of the pair of rollers of the first roller part and the second roller part may be further provided.

The grass clipping machine according to the present invention configured as described above may provide a grass clipping machine for pulverizing the grass clippings can be liquid fertilizer.

In addition, the present invention has the advantage of being able to finely crush the fiber of the grass clippings to have a two-stage roller structure, because the gap can be adjusted while there is a difference in the rotation speed between the rollers.

In addition, the present invention has the advantage that by installing a vibrating device in the input unit so that the grass clippings can be uniformly injected, by providing a scraper for removing foreign matter in each of the rollers, the work efficiency can be further improved.

In addition, the present invention does not require a separate storage place, there is an advantage that the lawn clippings can be immediately processed to prevent odor or pests caused by the neglected lawn clippings.

In addition, the present invention recycles turf clippings generated in the golf course as a liquid fertilizer, reducing the unnecessary costs, there is no hassle of separately fertilizing chemical fertilizers and pesticides, and can also expect the effect of environmental protection.

1 and 2 are a perspective view showing a grass clipping apparatus according to an embodiment of the present invention.
3 is a cross-sectional view of the right side of FIG.
4 is a cross-sectional view of the back side of FIG.
FIG. 5 is a sectional view of FIG. 4 seen from above; FIG.
Figure 6 is a perspective view for explaining the rotational drive of the first roller portion of the lawn clipping apparatus according to one embodiment of the present invention.
Figure 7 is a view for explaining the operation of the spacing control unit of the lawn clipping apparatus according to an embodiment of the present invention.

Hereinafter, a grass clipping apparatus according to an embodiment of the present invention with reference to the accompanying drawings will be described in detail.

1 and 2 are a perspective view showing a grass clipping apparatus according to an embodiment of the present invention, Figure 3 is a cross-sectional view of the right side of Figure 2, Figure 4 is a cross-sectional view of the back of Figure 2, Figure 5 It is sectional view seen from the top.

Grass clipping apparatus according to an embodiment of the present invention finely ground the grass clippings to enable liquid fertilizer.

1 and 2, the grass clipping apparatus according to an embodiment of the present invention is a hopper-type input unit 11, the grass clippings are introduced, and the discharge portion 12 is discharged from the ground grass clippings The branch includes a housing 10 and a drive source 20 for operating the grass edge grinding device.

The input unit 11 is provided with a vibration device 16 for generating vibration as shown in Figs. The vibrator 16, that is, the vibrator vibrates the input unit 11 when the grass clippings are input so that the grass clippings are uniformly input. Since the grass clippings are uniformly added, a large amount of grass clippings can be pulverized at a time.

3 to 5, the housing 10 includes a first roller part 30 including a pair of first and second rollers 31 and 32 rotating at different speeds, and a first roller. A second roller part 50 including a pair of third and fourth rollers 51 and 52 positioned downstream of the roller part 30 and rotating at different speeds is rotatably installed.

Grass clipping apparatus according to an embodiment of the present invention is a two-stage roller structure of the first roller portion 30 and the second roller portion 30, as shown in Figs. 3 and 4, the second roller portion 50 Located in the downstream of the first roller portion 30 has a double grinding structure for regrinding the grass clippings pulverized in the first roller portion (30). By this double crushing structure, the grass clipping machine can be finely crushed grass clippings containing a lot of fiber.

Any one of the pair of rollers 31, 32, 51, 52 constituting the first roller part 30 and the second roller part 50, that is, the first roller 31 and the third roller 51, respectively. Power is transmitted from the drive source 20 to rotate about the rotary shafts 35 and 55.

The housing 10 of the lawn clipping apparatus according to an embodiment of the present invention may include a bearing 13 and an installation part 14 on which the first roller part 30 and the second roller part 50 are installed. .

The driving source 20 is implemented by a motor, and the lawn clipping mill includes a power transmission unit for transmitting the power of the driving source 20 to the first roller part 30 and the second roller part 50. Here, the second roller 32 and the fourth roller 52 are the first roller 31 and the third roller 51 and the first to fourth gears 33, 34, 53, 54 to be described later without a driving source. The relative movement is possible by the rotation of.

As shown in FIG. 1, the power transmission unit is rotatably provided on one surface of the driving source 20 and the first belt 21 and the second belt 22 connected to one side of the first roller 31 and the third roller 51. The first pulley 23, the second pulley 24 is rotatably provided on one side of the first roller 31, and the third pulley 25 rotatably provided on one side of the third roller 51. ).

The first pulley 23 has a two-stage form in which the first and second belts 21 and 22 can be connected to each other so that the power of the driving source 20 is rotated by the first belt 21 and the second belt 22. The first belt 21 transmits power to the second pulley 24 and the second belt 22 transmits power to the third pulley 25, respectively.

The first roller 31 and the third roller 51 receive power from each of the second pulley 24 and the third pulley 25 to be driven to rotate.

Although FIG. 1 illustrates an embodiment including a belt and a pulley as a power transmission unit, the power transmission unit of the present invention is not limited thereto, and may be implemented as, for example, a plurality of gear brackets for transmitting power.

As shown in FIG. 2, a pair of gears 33, 34, 53, and 55 are coupled to the other sides of the first roller part 30 and the second roller part 50, respectively.

Specifically, the first roller 31 of the first roller part 30 is coupled to the first gear 33, the second roller 32 is coupled to the second gear 34, respectively, the first gear 33 Rotation is driven with the first roller 31 that rotates by receiving power from the drive source 20.

Here, as shown in FIG. 2, the first gear 33 and the second gear 34 have different sizes, and the second gear 34 is configured to be engaged with the first gear 33. . Similarly, the third gear 53 and the fourth gear 54 have different sizes, and the fourth gear 54 is configured to engage with the third gear 53.

Figure 6 is a perspective view for explaining the rotational drive of the first roller portion of the grass clipping machine according to one embodiment of the present invention.

As shown in FIG. 6, when the first gear 33 rotates, the second gear 34 meshed thereby also rotates. When the second gear 34 rotates, the second roller 32 coupled thereto also rotates.

Here, since the first gear 33 and the second gear 34 have different sizes, the first roller 31 and the second roller 32 rotate at different speeds V1 and V2.

The first roller 31 and the second roller 32 repeatedly perform the forward rotation, reverse rotation or stop operation when the foreign matter such as grass clippings.

6 shows only the first roller portion 30 for the convenience of description, the second roller portion 50 is also driven to rotate according to the same principle.

Specifically, the third roller 51 of the second roller portion 50 is coupled to the third gear 53, the fourth roller 52 is coupled to the fourth gear 54, respectively, and the third gear 53. Rotation is driven along with the third roller 33 is rotated by receiving power from the drive source 20.

When the third gear 53 rotates, the fourth gear 54 meshed thereby also rotates. When the fourth gear 54 rotates, the fourth roller 52 coupled thereto also rotates.

Here, since the third gear 53 and the fourth gear 54 have different sizes, the third roller 51 and the fourth roller 52 rotate at different speeds, and the third roller 51 and The fourth roller 52 repeatedly performs forward rotation, reverse rotation or stop operation when the foreign matter such as grass clippings is input.

Thus, since the pair of rollers constituting the first roller portion 30 and the second roller portion 50 each rotate in a millstone manner having different speeds, the two roller stages 30 and 50 respectively pass through Fine grinding of the fibrous components of turfgrass is possible.

As shown in FIGS. 4 to 6, helical grooves 37 and 38 are formed in at least one outer circumference of the first roller 31 and the second roller 32 of the first roller part 30. .

4 to 6 illustrate an embodiment in which helical grooves 37 and 38 are formed in both the first roller 31 and the second roller 32, but the present invention is not limited to the first roller 31. It includes an embodiment in which the helical groove is formed only in any one of the second roller (32).

The grass clippings introduced through the input unit 11 are first crushed through the first roller unit 30 below the input unit 11, and formed on at least one of the first roller 31 and the second roller 32. The helical grooves 37 and 38 make it easier to crush the grass clippings.

Referring to FIG. 2, the first scraper 41 and the second scraper 42 for removing the grass clippings remaining in the first roller 31 and the second roller 32 are disposed below the first roller part 30. Is installed.

In addition, the grass clippings pulverized by the first roller 31 and the second roller 32, the first scraper 41 and the second scraper (below the first scraper 41 and the second scraper 42) The first guide 71 and the second guide 72 for guiding the grass clippings removed by 42 to the lower second roller part 50 are installed.

The grass clippings primarily crushed by the first roller part 30 are introduced into the second roller part 50 by the first and second guide parts 71 and 72.

As shown in FIG. 4, the third roller 51 and the fourth roller 52 of the second roller part 50 are implemented as a friction roller.

The grass clippings primarily crushed by the helical grooves 37 and 38 of the second roller part 30 pass through the third roller 51 and the fourth roller 52 of the second roller part 50. Finely milled secondary

4 to 6 illustrate an embodiment in which a helical groove is formed in the first roller 31 and the second roller 32 and is not formed in the third roller 51 and the fourth roller 52. However, the present invention includes an embodiment in which a helical groove is also formed in the third roller 51 and the fourth roller 52. In addition, a helical groove may be formed in only one of the pair of rollers of the first roller part 30 or the second roller part 50.

Referring to FIG. 2, a third scraper 61 and a fourth scraper 62 for removing grass clippings remaining in the third roller 51 and the fourth roller 52 are disposed below the second roller part 50. Is installed.

The grass clippings pulverized by the third rollers 51 and the fourth rollers 52 and the grass clippings removed by the third scraper 61 and the fourth scraper 62 are discharged to the lower discharge part 12. .

Meanwhile, referring to FIGS. 1, 2 and 5, the distance between the first roller 31 and the second roller 32 and the third roller are respectively provided in the first roller part 30 and the second roller part 50. A gap adjusting unit for adjusting a gap between the roller 51 and the fourth roller 52 is installed.

As shown in FIGS. 1 and 2, the gap adjusting unit may include the first belt 21 side, the first and second gears 33 and 34 side, the second belt 22 side, and the third side of the grass clipping machine. And first to fourth spacing adjusters respectively installed on the fourth gears 43 and 54.

The first gap adjusting part includes a first handle 80, a first screw 81, a first supporting member 82, a first pressing member 83, and a first elastic member 84, and a second gap adjusting member. The part includes a second handle 85, a second screw 86, a second support member 87, a second pressing member 88 and a second elastic member 89, and the third gap adjusting part includes a third handle 90, a third screw 91, a third supporting member 93, a third pressing member 93 and a third elastic member 94, and the fourth gap adjusting part includes a fourth handle 95, The fourth screw 96, the fourth supporting member 97, the fourth pressing member 98, and the fourth elastic member 99 are included.

7 is a view for explaining the operation of the spacing control unit of lawn clipping machine according to an embodiment of the present invention.

In FIG. 7, the first spacing adjuster is shown as an example, but the second to fourth spacing adjusters operate on the same principle, and thus, the second spacing adjuster is also applied to the second to fourth spacing adjusters.

As shown in FIG. 7, the first skew 81 moves left and right through a through hole formed in the first support member 82 by the rotation of the first handle 80. A first elastic member 84 such as a spring is installed on the outer circumference of the screw 81 to press the first pressing member 83. To this end, a plurality of long holes 15 are formed in the N-shaped first to fourth pressing members 83, 88, 93, and 98.

Referring to FIG. 7B, when the grass clipping is introduced into the first roller part 30 while the first screw 81 is moved to the right according to the operation of the first handle 80, the elastic member The first pressing member 83 is moved to the left and right directions by the long hole 15 by the elastic action of the 84, so that the distance between the first roller 31 and the second roller 32 is automatically adjusted ( d1-> d2). Here, the user may manipulate the first handle 80 to control a width in which the distance between the first roller 31 and the second roller 32 is adjusted.

In the same manner, the spacing between the first roller 31 and the second roller 32 is automatically adjusted by the second spacing controller shown in FIG. 5 according to the introduction of the grass clippings, and the third and fourth spacing adjustments. The distance between the third roller 51 and the fourth roller 52 is also automatically adjusted by the negative.

On the other hand, the housing 10 may be provided with an emergency switch 17 to stop the operation when the grinding operation is malfunctioning. In addition, a cooling device (not shown) for releasing frictional heat generated from the first roller part 30 and the second roller part 50 may be installed in the housing 10, and the cooling device may be a fan. It includes an air-cooled device such as.

In the grass clipping machine of the present invention having the above configuration, the grass clippings introduced through the input part 11 are finely ground by the two-stage grinding structure of the first roller part 30 and the second roller part 50. It is discharged through the discharge portion 12 in a state.

Here, the interval between the pair of rollers constituting the first roller portion 30 and the second roller portion 50 can be automatically adjusted, the grass clippings discharged to the discharge portion 12 is mature fermentation to liquid fertilizer Becomes possible.

The above embodiments are merely exemplary, and various modifications and equivalent other embodiments are possible to those skilled in the art. Accordingly, the true scope of protection of the present invention should be determined by the technical idea of the invention described in the following claims.

10: housing 11: inlet
12: outlet 20: drive source
21: first belt 22: second belt
23: first pulley 24: second pulley
25: 3rd pulley 30: 1st roller part
31: 2nd roller 32: 2nd roller
33: first gear 34: second gear
37,38: helical groove 41: first scraper
42: second scraper 50: second roller portion
51: third roller 52: fourth roller
53: third gear 54: fourth gear
61: third scraper 62: fourth scraper
71: first guide 72: second guide

Claims (5)

In the grass clipping machine,
A drive source;
A power transmission unit for transmitting power of the driving source;
A housing having an input unit into which the lawn clippings are inserted;
A pair of rollers rotatably installed in the housing and rotated at different speeds by power provided through the power transmission unit, and a helical groove is formed on an outer circumference of at least one of the pair of rollers A first roller portion being;
A second roller positioned downstream of the first roller part, the second roller including a pair of rollers for regrinding the grass clippings pulverized in the first roller part while rotating at different speeds by the power provided through the power transmission part; Lawn paper mill crusher comprising a portion. The method of claim 1,
The lawn clipping apparatus is installed on each of the first roller portion and the second roller portion, further comprising an interval adjusting unit for adjusting a distance between the pair of rollers. The method of claim 1,
Lawn paper mill crusher, characterized in that the input unit is provided with a vibration device for generating a vibration. 4. The method according to any one of claims 1 to 3,
The driving unit grass clipping apparatus, characterized in that for controlling each of the pair of rollers of the first roller and the second roller portion to be rotated forward or reverse. 4. The method according to any one of claims 1 to 3,
The grass clipping machine, characterized in that it further comprises a scraper for removing foreign matter of each of the pair of rollers of the first roller portion and the second roller portion.

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