KR200444038Y1 - A grass cutter for a rice-planting machine - Google Patents

Abstract

The present invention relates to a weeding device used to be mounted to a rice transplanter, and more particularly, a plurality of protruding frames that are fixed fastening in a state of protruding rearwardly long in each of the rotary upper end of the rice transplanter and the rear of the upper surface of the protruding frames The base frame portion is provided with a horizontal frame fixedly installed in the horizontal direction across the end as a whole, and through the plurality of fixed bearing inner side fixedly mounted side by side at a predetermined interval to the lower end of the horizontal frame in the state installed horizontally A long rod-shaped rotary shaft rotated by receiving a driving force from a hydraulic motor fixed to a horizontal frame, and a plurality of rotary shafts are installed side by side at a predetermined interval on the rear side of the rice transplanter. Lower part back and forth in hanging state It is installed to be flowable in the direction of the lower portion of the unit casing and the lower driving shaft is installed through the rotational force from the rotating shaft in the state of the passage through the axis and the screw on each of the left and right sides of the lower driving shaft protruding outward of the unit casing It relates to a weeding device for a rice transplanter, characterized in that the cutter blade is fixed with a plurality of weeding units configured to weed along the moving direction of the rice transplanter.

Rice transplanter, Rotary, Mowing device, Base frame part, Rotating shaft, Weeding unit

Description

A grass cutter for a rice-planting machine

1 is a side schematic view of a state that the weed device for rice transplanters according to the present invention is mounted to a rice transplanter

2 is a schematic rear view of the rice transplanter according to the present invention mounted on the rice transplanter

Figure 3 is a schematic cross-sectional view of the weeding unit in the weeding device for rice transplanters according to the present invention

Figure 4A is a schematic diagram showing an embodiment of a cutter blade in the rice weeding device according to the present invention

Figure 4B is a schematic view showing another embodiment of the cutter blade in the rice weeding device according to the present invention

5 is a side schematic view of a state in which the weeding device for the rice transplanter according to the present invention is not used and fixed with a wire or the like while the weeding unit is rotated upwards;

6 is a side schematic view of a conventional rice weeding device

           <Description of Symbols for Major Parts of Drawings>

1, 1 '. Weeding devices 2, 2 '. Yianggi

3, 3 '. Rotary 4, 4 '. Rotary shaft

5a, 5b. Rice transplanter 6. Base frame part

7. Extrusion Frame 8. Horizontal Frame

9. Support bracket 10. Fixed bearing

11. Rotating shaft 12. Hydraulic motor

13. Hydraulic supply device 14. Fluid supply pipe

15. Rotating Gear 16. Driving Gear

17, 17 '. Weeding Unit 18. Unit Casing

19. Upper sprocket 20, 20 '. Lower drive shaft

21. Lower sprocket 22, 22 '. Connection chain

23, 23 '. Cutter blade

25. Connecting rod 26. Seedling cutting plate

27.Screw blade piece 28.Wire

29 '. Upper fixing frame 30 '. Upper drive shaft

31 '. Drive Chain

The present invention relates to a weeding device used to be mounted to a rice transplanter, and more particularly, a plurality of protruding frames are fixed to the top of each rotary top of the rice transplanter in a long protruding state toward the rear and the rear of the upper surface of the protruding frames The base frame portion is provided with a horizontal frame fixedly installed in the horizontal direction across the end as a whole, and through the plurality of fixed bearing inner side fixedly mounted side by side at a predetermined interval to the lower end of the horizontal frame in the state installed horizontally A long rod-shaped rotary shaft rotated by receiving a driving force from a hydraulic motor fixed to a horizontal frame, and a plurality of rotary shafts are installed side by side at a predetermined interval on the rear side of the rice transplanter. Lower part back and forth in hanging state It is installed to be movable in the direction, and the lower drive shaft is installed in the lower portion of the unit casing through the rotational force received from the rotating shaft in the state of passage through the installation and the screw respectively on the left and right sides of the lower driving shaft protruding outward of the unit casing It relates to a weeding device for a rice transplanter, characterized in that the cutter blade is fixed with a plurality of weeding units configured to weed along the moving direction of the rice transplanter.

In general, the weeding device used in the rice transplanter is a device for weeding the weeds grown in the furrows of farmland in the state of being mounted in the rear of the rice transplanter. As the blade rotates, weeds that grow on farmland are mechanically mowed, which greatly reduces labor.

 This conventional rice transplanter weeding device (1 ') is fixed to the upper fixing frame (29'), respectively, on top of a plurality of rotary (3 ') provided at the rear of the conventional rice transplanter (2') as shown in FIG. Attaching and lowering the weeding unit 17 'in a diagonal direction on one side of each of the upper fixing frame 29', each of the weeding unit 17 'is an upper drive shaft 30' in the horizontal direction in the upper and lower portions, respectively ) And the lower driving shaft 20 'are arranged to penetrate, and the upper driving shaft 30' is connected to the rotary shaft 4 'of each rotary 3' by the drive chain 31 ', respectively, and the upper driving shaft ( 30 ') and the lower drive shaft 20' are also connected to each other by the connecting chain 22 ', and each weeding unit is driven by a rotary shaft 4' which is rotated by receiving power transmitted from the engine of the rice transplanter 2 '. The upper driving shaft 30 'and the lower driving shaft 20' of the 17 'are chain driven to rotate, and the lower The coaxial 20 'is fixedly attached to the left and right sides with the cutter blades 23' protruding outwards, so that weeds, etc., grown on the ground as the cutter blades 23 'are rotated by the lower drive shaft 20'. Weed is to be weeded.

However, the conventional rice transplanter weeding device 1 'must be removed from a rice transplanter (not shown), such as a conventional rice transplanter, which is basically fixed to each rotary shaft 4' of the rice transplanter 2 '. Next, each weeding device 1 'is separately connected to and mounted on each rotary shaft 4, thereby separating the weaving device (not shown), such as a weaving ore, which is laid out in a complicated structure on each rotary shaft 4'. There is a problem that it is very difficult and time-consuming to mount, each of the upper drive shaft 30 'is connected to the rotary shaft 4' and the drive chain 31 'and the drive chain 31' It is rotated at high speed in the exposed state, so that foreign matters such as weeds and soil cut during weeding work are caught in the drive chains 31 ', so that each weeding unit 17' cannot be driven smoothly or the worker is in a safety accident. There is a problem that One of the weeding units 17 'is always fixed at a constant angle so that weeding work is carried out. If a hard stone or rock is projected on the ground, each of the weeding units 17' is hit by an impact. As it is transmitted as it is, there is a problem that can not be used at all in a lot of areas such as stones or rocks due to cracks or damage.

The present invention is to solve the above problems, it is possible to simply use the weeding device together with the existing rice transplanter without the need to separate and remove the rice transplanter, such as rice transplants already installed on the left and right sides of the rotary shaft of the rice transplanter. It is safe to use because the drive chain is not exposed to the outside, and weeding is carried out with each weeding unit hanging on the rotating shaft, even if the weeding unit hits a hard stone or rock protruding from the ground. The object of the present invention is to provide a weeding device for rice transplanters which can be safely used even in areas where there are many stones or rocks as the lower part of the unit flows back and forth.

In order to achieve this purpose, a plurality of protruding frames are fixed to each rotary upper end of the rice transplanter in a state of protruding rearwardly and horizontally fixed horizontally across the rear end of the upper surface of the protruding frames. Drive force from the hydraulic motor which is fixed to the horizontal frame in a state in which the frame is provided in a horizontal direction through the inner side of the base frame portion and a plurality of fixed bearings fixed side by side at a predetermined interval at the lower end of the horizontal frame Long rod-shaped rotary shaft that is rotated by receiving the, and a plurality of the rear side of the rice transplanter is installed side by side at a predetermined interval, but the upper portion of the unit casing through the axis of rotation in the vertically suspended state and the lower portion can flow in the front and rear direction Is installed to In the lower part of the unit casing, the lower driving shaft is penetrated and is rotated by receiving the rotational force from the rotating shaft, and screw-type cutter blades are fixedly attached to the left and right sides of the lower driving shaft projecting outward of the unit casing. It is a feature of the present invention to be composed of a plurality of weeding units that are to be weeded along the direction of travel.

Hereinafter, the preferred configuration according to the present invention will be described in detail by the drawings.

The weeding device 1 for the rice transplanter according to the present invention is installed on a plurality of rotary 3 protruding from the rear of the conventional rice transplanter 2, as shown in Figs. It is to be possible to use the weeding device 1 together with the existing rice transplanter (5a) (5b) without having to remove and reinstall the rice transplanter (5a) (5b), such as rice transplanting pre-installed on both sides, A base frame part 6 which is fixed to the upper part of the rotary 3 and supports the weeding apparatus 1 as a whole, and an elongated rod-shaped rotating shaft 11 which is rotated and driven while being supported by the base frame part 6; It is composed of a plurality of weeding units 17 covering the ground while weeding the weeds of the ground by receiving a driving force in a state in which a plurality of each is arranged at a predetermined interval on the rotary shaft 11.

The base frame part 6 is a long square fixed by a conventional bolt and nut in a state of protruding rearwardly in the upper end portion of each rotary 3 of the rice transplanter 2 as shown in FIGS. 1, 2, and 5. A plurality of frame-shaped protruding frames 7 are provided, and the protruding frames 7 are provided with a long straight horizontal frame 8 which is fixedly installed in a horizontal direction across the rear end of the upper surface as a whole. The horizontal frame 8 is fixed to the lower end of the plurality of support brackets (9) bent in a "b" shape at regular intervals, but fixed bearings (10) of cylindrical bearings on the rear portions of the support brackets (9), respectively. ) Is fixedly attached so that the long rod-shaped rotating shaft 11 penetrates through the plurality of fixed bearings 10 as a whole.

1 to 3 and 5, the rotating shaft 11 is formed through a plurality of fixed bearings 10 fixedly attached to the lower end of the horizontal frame 8 in an elongated rod shape as the horizontal frame ( 8) to be installed in the horizontal direction up and down side by side at a predetermined interval spaced below and is rotated by receiving the driving force from the hydraulic motor 12 is fixed to one side of the rear portion of the horizontal frame (8), The hydraulic motor 12 is connected to the hydraulic supply device 13 and the fluid supply pipe 14 installed in the rice transplanter 2 so as to be rotationally driven by the fluid supplied from the fluid supply pipe 14. As shown in FIG. 2, the rotating gear 15 is fixedly attached to the shaft of the hydraulic motor 12, and the rotating gear 15 is geared to the driving gear 16 integrally arranged on one side of the rotating shaft 11. satiety As the hydraulic motor 12 is rotated, the rotating shaft 11 is rotated in a gear drive type.

On the other hand, the rotary gear 15 and the drive gear 16 may be connected to a conventional chain or timing belt instead of being directly connected to the gear bit, so that the rotary shaft 11 can be driven by the chain drive or belt drive. have.

The plurality of weeding units 17 are spaced at a rear side between each rotary 3 of the rice transplanter 2 and between the rice transplanters 5a and 5b of each rotary 3 as shown in FIGS. 1 to 5. It is positioned in the spaced apart state so as not to be in contact with the existing rice transplanter (5a) (5b) mounted on each rotary shaft (4), the unit casing in the shape of a thin and long case on the rotating shaft (11) ( 18) the upper part of the unit casing 18 is made of a heavy metal material such as iron, and the unit is centered on the rotating shaft 11 in a state where the unit casing 18 is suspended vertically downward to the rotating shaft 11 by its own load. The lower portion of the casing 18 is movable to the front and rear direction, but the upper sprocket 19 is integrally formed on the rotating shaft 11 inside the upper portion of the unit casing 18 through which the rotating shaft 11 penetrates. The rotating shaft 11 at the lower portion of the unit casing 18 Lower drive shafts 20 are arranged in a horizontal direction in parallel to each other, and a lower sprocket 21 is integrally formed on the lower drive shafts 20 at a lower inner side of the unit casing 18 through which the lower drive shafts 20 are penetrated. The upper sprocket 19 and the lower sprocket 21 are connected to the connection chain 22 so that when the rotary shaft 11 is rotated, the lower sprocket 20 is also rotated in a chain driving manner. The lower drive shaft 20 is a cutter blade 23 each of which is a screw (screw) on the left and right sides protruding to the outside of the unit casing 18 is fixedly attached along the outer peripheral surface of the lower drive shaft 20, the cutter blade As the 23 is rotated, the weeds and the like that grow on the ground are mowed, and at the same time, the soil of the ground is dug up to cover the outside of the weeding unit 17.

As shown in FIG. 3, the unit casing 18 is fixedly attached to the “b” shaped harrow piece 24 so as to surround the front and bottom portions thereof, and the upper part of the harrow piece 24 has a unit casing ( 18) is connected to the center portion of the front surface by the connecting rod 25 is fixedly attached to the front of the unit casing 18 spaced apart from the front of the unit casing (18) and the lower portion of the harrow piece 24 of the unit casing (18) The fixed piece is integrally fixed to the lower end portion, and the soil piece 24 is in contact with the ground to prevent the unit casing 18 from being damaged while digging soil of the ground between the cutter blades 23 on both sides. 23) to further increase the cover effect.

The harrow piece 24 has a seedling cutting prevention plate 26, which is bent round to the outside rearward in a vertical direction, is vertically fixed and attached to the front side of each weeding unit 17 as the rice transplanter 2 proceeds. The cutting prevention plate 26 spreads seedlings grown to a predetermined length to the left and right sides of the weeding unit 17 to prevent the cutting blades 26 from being cut and cut.

In addition, the cutter blade 23 is formed by welding a single screw blade along the outer circumferential surface of the lower drive shaft 20 to form the cutter blade 23, as shown in Figure 4A or as shown in Figure 4B The two blade pieces 27 may be spaced apart at regular intervals along the outer circumferential surface of the lower drive shaft 20 to be welded and screwed to form a cutter blade 23.

Meanwhile, when the plurality of weeding units 17 are not used for weeding, as shown in FIG. 5, each of the weeding units 17 is rotated upward with respect to the rotation shaft 11. By tying and fixing the horizontal frame 8 using the wires 28, each weeding unit 17 does not come into contact with the ground so that the rice transplanter 2 can be used for other purposes smoothly.

Hereinafter, the action according to the present invention is as follows.

In the case of weeding using the rice transplanter 2 equipped with the rice transplanter weeding device 1 of the present invention, the hydraulic motor 12 connected to the hydraulic supply device 13 of the rice transplanter 2 by the fluid supply pipe 14. ) By rotating the drive gear 16 of the hydraulic motor 12 and the drive gear 16 of the rotary shaft 11 so that the rotary shaft 11 is rotated and at a predetermined interval to the rotary shaft 11 The upper sprocket 19 and the lower sprocket 21 of the plurality of weeding units 17 arranged in a side-by-side state are chain-driven by the connection chain 22 so that the lower drive shaft 20 rotates and the lower drive shaft 20 Screw-type cutter blades 23 fixedly attached to the left and right sides of the abutment contact the ground, weeding the weeds and the like of the ground where the rice transplanter 2 proceeds, and simultaneously digging the soil of the ground to cover the soil, and at the same time, Front and bottom of the unit casing (18) of the weeding unit (17) The harrow piece 24 fixedly attached to the ground in contact with the ground digs up the soil of the ground and sends it to the cutter blades 23 on both the left and right sides to further increase the cover effect, and the harrow piece of the weeding unit 17 ( 24) The seedling cutting plate 26 fixed to the front surface of the seedlings grown to a predetermined length to spread to the left and right outside of each weeding unit 17 to prevent the cutting to contact the cutter blade (23).

In addition, even when the weeding unit 2 hits the rock or rock by weeding the ground having a lot of hard stones or rocks, the upper part of the unit casing 18 of each weeding unit 17 is rotated by a rotating shaft ( 11) is laid in a suspended state, the lower portion of each weeding unit 17 around the rotating shaft 11 flows in the front and rear direction to cushion the impact so that the weeding unit 17 is not easily damaged.

According to the present invention as described above, it is possible to simply use the weeding device together with the existing rice transplanter without the need to separate and remove the rice transplanter, such as rice transplanting pre-installed on the left and right sides of the rotary shaft of the rice transplanter, driving the rotating shaft It is safe to use because the drive chain to be exposed is not exposed to the outside, and weeding unit is carried out with each weeding unit hanging on the rotating shaft, even if the weeding unit hits hard stone or rock protruding from the ground. As the lower part of the flow back and forth, the shock is buffered, so there is an effect that can be safely used in a lot of stone or rock area.

Claims (6)

Base frame is provided with a plurality of protruding frame to be fixed fastening in the state of protruding rearward in the upper end of each rice transplanter and a horizontal frame fixed in the horizontal direction across the rear end of the upper surface of the protruding frame as a whole And a long rod that is rotated by receiving a driving force from a hydraulic motor fixed to the horizontal frame while being installed in a horizontal direction through the inside of the plurality of fixed bearings fixed side by side at a predetermined interval at the lower end of the horizontal frame. The rotating shaft of the upper part and a plurality of the rear side of the rice transplanter are installed side by side at a predetermined interval, and the upper part of the unit casing is arranged through the axis of rotation and the lower driving shaft is passed through the axis of the lower part of the unit casing to transmit the rotational force from the rotating shaft Take rotation drive In the rice weeding device composed of a plurality of weeding unit, the weeding unit 17 is suspended in the vertical direction to the rotary shaft 11, the lower part is installed to be able to flow in the front and rear direction to the stone or rock The impact is cushioned when it hits, and screw-type cutter blades 23 are fixed to the left and right sides of the lower driving shaft 20 protruding outwardly of the unit casing 18, so that the traveling direction of the rice transplanter 2 is fixed. As the screw-type cutter blade 23 is rotated according to the weeding work at the same time digging the soil of the ground weeding apparatus for a rice transplanter, characterized in that to cover in the outward direction of the weeding unit (17). According to claim 1, wherein the hydraulic motor 12 has a rotary gear 15 is fixed to the shaft and the rotary gear 15 is geared to the drive gear 16 integrally arranged on one side of the rotary shaft (11) The weeding device for a rice transplanter, characterized in that the rotating shaft (11) is rotated in a gear drive type according to the rotation of the hydraulic motor (12). delete The method of claim 1, wherein the unit casing (18) is fixed to the "b" shaped harrow piece 24 so as to surround the front and the lower end, the upper portion of the harrow piece 24 of the unit casing (18) It is connected by the connecting rod 25 protruding to the center of the front surface, and is fixedly attached to the front of the unit casing 18 at a predetermined interval. The lower part of the harrow piece 24 is integrally formed at the lower end of the unit casing 18. It is attached to the fixed piece so as to prevent the unit piece (18) from being damaged by contacting the ground piece (24) to the ground to dig the soil of the ground to send to the cutter blades (23) on both sides to increase the covering effect. Mowing device for rice transplanters, characterized in that. 5. The weeding device according to claim 4, wherein the harrow piece (24) is vertically fixed to a seedling cutting prevention plate (26) which is bent to the outside in the rear in a vertical direction. According to claim 1, The cutter blade 23 is a weeding device for a rice transplanter, characterized in that a plurality of screw blades (27) are welded in a screw shape spaced apart at regular intervals along the outer peripheral surface of the lower drive shaft (20).

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