KR20200070145A - A grass cutter - Google Patents

Abstract

According to the present invention, a stem cutting apparatus of agricultural products comprises: a main body portion having an inner space with an open lower side; cutting units provided with cutters on first and second rotating shafts rotatably and vertically installed in the main body portion; blowing units which are installed on the front of the cutting units, and include third and fourth rotating shafts vertically installed and blower fans installed on the third and fourth rotating shafts to float or blow the stems and leaves of agricultural products by generating an upward airflow or a downward airflow; and a driving unit for driving the first and second rotating shafts of the cutting units and the third and fourth rotating shafts of the blowing units.

Description

Stem cutting device for agricultural products{A grass cutter}

The present invention relates to a stem cutting machine, and more particularly, to a stem cutting device for agricultural products capable of cutting leaves and stems of bulbous crops exposed to the ground by using a rising air stream.

In general, when harvesting bulbous crops such as potatoes and onions from the ground, the ground can be harvested by digging the ground with farm equipment such as hoe. When the crop cultivation area is small, it can be easily harvested with a small amount of labor. However, large-scale cultivation requires a lot of labor, so a mechanically-powered harvester is used to lower the production cost.

On the other hand, in the ground crops such as onions, stems and leaves grow on the ground and are exposed to a certain length. Therefore, after cutting the stems and leaves of the crops exposed to the ground, these bulbous crops can be efficiently and automated to harvest the crops in the ground. However, stems and leaves that grow to a certain length exposed on the ground maintain various patterns such as falling or bending to one side depending on climate change or external environment. The stems and leaves of such bulbous crops, that is, the stems and leaves that maintain various patterns, are difficult to cut with a conventional conventional mower.

Therefore, in order to harvest the bulbs with stems and leaves, the worker has to remove the leaves and stems, so it takes a lot of work and time for harvesting the bulbs.

Republic of Korea Patent Registration No. 10-1158085 discloses an embodiment of the mower. The published mower has a main body having a power transmission shaft that receives power from the outside; An upright guide unit installed on one side of the lower end of the main body and forcibly guiding the order of crops in the ground exposed to the ground while being rotated by receiving the power; It is installed at the bottom of the main body so as to be located in the vicinity of the upright guide portion, is rotated by receiving the power, and has a cutting portion for cutting the upright net.

In addition, the upright guide portion includes an upright member having a plurality of ribs made of an elastic material that extends radially from the outer circumference of the rotating shaft and a fixed length of the rotating shaft at which both ends are rotatably supported by the main body. Although provided, the upright member includes a plurality of fixing plates installed on the outer circumference of the rotating shaft, and the ribs extending from each end of each of the fixing plates.

Since the conventional mower constructed as described above is erected using an upright member having a large number of ribs, the collapsed stem and leaves have a problem in that they cannot lie down on the stem and mouth in various patterns.

In particular, crops, such as onion stems or garlic, are more difficult to remove stems and leaves because the stems and leaves begin to fall when the harvest time has passed.

Korean Registered Patent No. 10-16456284 discloses an onion harvesting device.

The posted onion harvesting device includes a main body; A mulching vinyl collecting unit which is fixed to the main body and winds and collects mulching vinyl overlying the ridge through a winding unit; And an al root harvesting unit for harvesting by harvesting the roots of onions grown on the mulch from which the mulching vinyl was collected through the mulching vinyl collecting unit.

As described above, the onion harvesting device cannot fundamentally solve the conventional problems as described above, that is, the problem of not being able to vertically cut a stem bent into the ground.

Republic of Korea Patent Registration No. 10-1158085 Republic of Korea Registered Patent No. 10-16456284

The present invention is to solve the above problems, the object of the present invention is to expose or blow away the stems and leaves of field crops, particularly bulbous crops, such as onions, garlic, potatoes, etc., exposed to the top of the ground using a blower unit. It is to provide a stem cutting device for agricultural products that can be cut later.

Another object of the present invention is to provide a stem cutting device for agricultural products that can be cut by a cutting blade that rotates the stem and leaves in the horizontal direction in the vertical direction by the blowing unit.

In order to achieve the above object, the stem cutting device for agricultural products according to the present invention includes a main body portion having an inner space with an open lower side, and first and second rotating shafts rotatably installed in the main body portion, respectively. Cutting units equipped with,

It is installed on the front of the cutting unit, and is installed on the 3rd and 4th rotating shafts installed in the vertical direction and the 3rd and 4th rotating shafts, respectively. And blowing units for floating or blowing the mouth, and driving units for driving the cutting unit and the blowing unit.

The driving unit includes a first accelerator coupled with a spline shaft connected to a withdrawal shaft drawn by a tractor, a first withdrawal shaft withdrawn from the accelerator to the side of the main body, and a first rotating shaft for accelerating the first rotational shaft on one side. 2 gearboxes, a second withdrawal shaft that is withdrawn from the second gearbox to the side of the main body, and a first and second pulleys respectively installed on the first and second withdrawal shafts and fastened by a first belt,

Third and fourth pulleys interconnected to the first and second rotating shafts, fifth and six pulleys respectively installed on the third and fourth rotating shafts, and second, fourth, fifth and six pulleys, respectively. It is equipped with the second belt which takes.

The stem cutting device for agricultural products according to the present invention can cut stems and leaves of bulbous roots in a state where bulbs are buried in the ground. In particular, even if the stem and the leaf are bent and in close contact with the ground, the stem can be vertically erected by the rising or falling air generated by the blowing unit, thereby improving reliability and efficiency due to cutting.

In addition, the present invention can vertically erect the stem or the mouth by amplifying the rotational speed of the blowing unit by increasing the rotational force of the withdrawal shaft drawn out to the withdrawal shaft of the trech in multiple stages.

1 is a perspective view of a stem cutting device for agricultural products according to the present invention,
Figure 2 is a plan view of the stem cutting device of agricultural products according to the present invention,
Figure 3 is a rear view of the stem cutting device of agricultural products according to the present invention,
Figure 4 is a front view of the stem cutting device of agricultural products according to the present invention,
Figure 5 is a side view of the stem cutting device of agricultural products according to the present invention.

The present invention is to be able to cut the stem and leaves of bulbous crops in an upright state through an upward airflow, and an embodiment thereof is shown in FIGS. 1 to 5.

Referring to the drawings, the stem cutting device 10 of the agricultural product according to the present invention is to be pulled by a tractor to cut stems and leaves upright using an upward airflow in a planted state of a bulbous crop, and the lower side is opened. A plurality of first and second cutters 23 and 24 are provided on the main body portion 12 having an inner space and the first and second rotation shafts 21 and 22 rotatably installed on the main body portion 12 The cut unit 20 is provided. In addition, a blower unit 40 having a plurality of blower fans 31 is provided to generate a rising air stream or a descending air stream to stand the stem and leaves of the double-ear bulb crop of the cutter unit 20. The cutting unit 20 and the blowing unit 40 are provided with a driving unit 60 to amplify and drive the number of revolutions of the power take-off shaft of the tractor. .

Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

The main body part 12 of the stem cutting device 10 of the agricultural product according to the present invention is connected and towed by a tractor and a towing part 11, and a cutting unit 20 to be described later on the lower surface of the main body part 12 And the blowing unit 40 is provided with a space portion 13 is installed, the space portion 13 is extended is connected to the discharge passage 14 for discharging the stem and leaves. And the rear side of the main body 12 supports the main body 12, and wheels 15 for smooth movement are rotatably installed at the end side of the support frame 15a fixed to the main body 12. In addition, a support rod 16 for supporting the front surface is installed on the front side of the main body 12 when the tractor is not towed.

In addition, a guide cover 17 for opening and closing the discharge passage 14 and guiding the discharge of the cut stem and mouth or guiding discharge to the ground side is rotatable on the outlet side main body portion 12 of the discharge passage 14. Is installed. In addition, the guide cover 17 may be rotatably installed by an actuator installed in the main body 12. The actuator can be made by a hydraulic cylinder. When the guide cover 17 is opened, a vertical blocking portion is formed to prevent stems and leaves from scattering to the outside and to allow the stems and leaves to fall to the ground.

And the cutting unit 20, the first and second rotating shafts 21 and 22 are rotatably installed on the main body 12 as shown in FIGS. 1 to 5, and the first and second rotating shafts ( 21) 22, a plurality of first and second cutters 23 and 24 are installed. The first and second rotary shafts 21 and 22 are installed on the first and second cutters 23 and 24 horizontally to the ground. The cutting blades of the first and second cutters 23 and 24 are preferably two arranged at 180 degree intervals.

The blowing unit 40 is installed on the front of the cutting unit 20, the third and fourth rotating shafts 41 and 42 are installed on the main body 12, and the third and fourth rotating shafts 41 are provided. Blowing fans 43 and 44 are respectively installed at 42.

Each of the cutting unit 20 and the blowing unit 40 is limited to a rotating shaft provided with two cutters and a rotating shaft provided with a blowing fan, but is not limited thereto, and one or two or more rotating shafts may be installed.

And the drive unit 60 is for transmitting the rotational force of the tractor and the power transmission shaft 51 to the first and second rotating shaft 21, 22 and the third and fourth rotating shaft (41, 42), the main body portion (12) is provided with a first gearbox (61) connected to the power transmission shaft (51) installed. And the first withdrawal shaft 62 of the first speed increaser 61 is drawn out to the side of the main body 12. A second speed increaser 63 is installed on the first rotational shaft 21, and the second speed reduction axis 64 of the second speed increaser 63 is the first speed reduction axis 62 of the main body 12 Is withdrawn in the withdrawal direction. In addition, the first and second pulleys 65 and 66 are installed at the ends of the first and second drawing shafts 62 and 64, and the first and second pulleys 65 and 66 are first belts 67 ). In addition, the first and second rotating shafts 21 and 22 and the third and fourth rotating shafts 41 and 42 respectively have 3, 4, 5, and 6 pulleys 71, 72, 73, and 74. They are installed, and the third, fourth, fifth, and six pulleys 71, 72, 73, 74 are connected by a second belt 75. The third and fourth pulleys 71 and 72 installed on the first and second rotating shafts 21 and 22 are provided with fifth and sixth pulleys 73 formed on the third and fourth rotating shafts 41 and 42. (74) It is preferable to be formed to be relatively larger to be accelerated than the third and fourth rotating shafts 41 and 42 and the first and third rotating shafts 21 and 22.

In addition, the seventh and eighth pulleys 75 and 76 are installed on the lower sides of the first and second rotation shafts 21 and 22, and the third and fourth pulleys 75 and 76 are third belts 77, respectively. It can further be provided with a structure hung by. In this case, it is natural that the rotational shaft connected to the first cutter located at the lower portion of the second gearbox should maintain the idle state.

The driving unit is not limited by the above-described embodiment, and may be formed of a hydraulic motor capable of driving the first, second, third, and fourth rotating shafts, an independent engine, or the like. When the hydraulic motor is used, hydraulic oil supplied from the hydraulic pump of the tractor towing the body portion 12 may be supplied. And reference numeral 80 is installed around the blowing fan of the blowing unit, it is possible to increase the suction power of the flow of air blown from the blowing fan.

In order to cut the stem and the mouth of the bulbous crop using the cutting device 10 for cutting the field crop according to the present invention configured as described above, first, the body portion 12 of the tractor for towing the body portion 12 Connect the traction part 11, and connects the power take-off shaft (not shown) of the tractor and the power transmission shaft 51 of the driving part 60 installed in the main body part 12.

When the power take-off shaft 51 is rotated in this state, this rotational force is transmitted to the blowing unit 40 and the cutting unit 20, and the first, second, third, and fourth rotating shafts 21, 22, 41, 42 ) At high speed.

Therefore, the stems and leaves of the bulbous crop 100 bent in various directions by the upward airflow generated by the blowing unit 40 are allowed to stand upright or fly. If necessary, the airflow of the blowing unit may be directed downward to cut the stem and leaves while flying.

The upright stems and leaves are cut by the cutters 23 and 34 of the cutting unit 20 as the main body portion 12 is advanced by the tractor.

Therefore, even if the stems of the bulbous crops are bent in various patterns, they are cut upright to maximize the efficiency of cutting the stems and leaves of the bulbous crops.

The stem cutting device for agricultural products according to the present invention described above has been described with reference to the accompanying drawings, but this is only an example, and a person having ordinary knowledge in the art can perform various modifications and other equivalent embodiments therefrom. You will understand the point. Accordingly, the scope of true technical protection of the present invention should be defined only by the technical spirit of the appended claims.

Claims (2)

Cutter units having a main body portion having an inner space with an open lower side, and first and second rotational shafts rotatably installed in the main body portion,
It is installed on the front side of the cutting unit, and is provided on the 3rd and 4th rotating shafts installed in the vertical direction and the blowing fan which is installed on the 3rd and 4th rotating shafts to generate an upward air flow or to generate a downward air flow. A stem cutting device for agricultural products, characterized in that it has blower units for floating or blowing the mouth, and driving units for driving the first and second rotating shafts of the cutting unit and the third and fourth rotating shafts of the blowing unit. According to claim 1,
The drive unit includes a first speed increasing gear connected to a power take-off shaft drawn by a tractor, a first speed taking-off shaft that is drawn from the speed increasing machine to the side of the main body, and a second speed speed increasing and speeding the first rotation shaft, and the first 2 A second withdrawal shaft that is withdrawn from the gearbox to the side of the main body, and the first and second pulleys respectively installed on the first and second withdrawal shafts and fastened by the first belt,
The third and fourth pulleys installed on the upper side of the first and second rotating shafts, the fifth and six pulleys installed on the upper side of the third and fourth rotating shafts, and the second, fourth, fifth and six pulleys Stem cutting device for agricultural products, characterized in that each provided with a second belt to be applied to each.

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