KR102194298B1 - Self-propelling composite weeding apparatus having improved vertical weeding unit - Google Patents

Abstract

The present invention relates to a self-propelled composite weeding apparatus having an improved horizontal weeding unit. More particularly, the present invention relates to a self-propelled composite weeding apparatus having an improved horizontal weeding unit, which safely cuts and removes weeds including various crops such as weeds and chives grown on farmland while moving along farmland by self-driving.

Description

Self-propelling composite weeding apparatus having improved vertical weeding unit}

The present invention relates to a self-propelled complex weeding device having an improved upright weeding unit, and more particularly, safely cutting herbicides including various crops such as weeds and leeks grown on farmland while moving by self-driving along the farmland. It relates to a self-propelled hybrid weeding apparatus having an improved upright weeding unit that is removed by doing.

As is well known, weeds grow naturally in rice paddies or fields that have been sown or transplanted, and the weeds absorb nutrients around them with vigorous growth power to hinder the growth of crops, so weeding for farmers considering agricultural productivity Became an important farming event throughout the year.

However, it is not easy for people to remove weeds from furrows or furrows in the farming season, where labor is insufficient.

In addition, in addition to weeds, crops are sometimes removed through a separate weeding process. For example, if the crop is not harvested due to a price plunge, but the crop is weeded on its own to give up the harvest, and the stem of a crop that has been harvested is removed.

Of course, it is possible to remove the herbicides through the use of herbicides, but this may lead to serious side effects such as soil pollution, destruction of the surrounding ecosystem, and absorption of residual pesticides by humans.

In addition, weeds with resistance are encouraging excessive use of herbicides, and super weeds that do not die even when applied several times compared to the past have been created, which poses a threat to agriculture.

On the other hand, the Chongqing mower is an agricultural machine that directly removes or cuts weeds in rice fields or fields during the growth of crops, and has been developed to replace humans directly working with basketball.

In addition, the Chongqing mower is in the spotlight as a weeding method that overcomes the dysfunctions and limitations of herbicides because it also serves to promote the growth of crops by supplying air to the soil while digging and moving the soil along with cutting weeds.

The work machine for heavy weeding is a type (passenger type) that cuts shallowly near the roots of weeds or in the ground by attaching a sweep or rotary hoe to the back of a tractor that can be used, and a cultivator that runs by power ( cultivator) equipped with a mow blade to manipulate while walking (self-propelled; self-driving type), a method in which the user pushes and walks a cart equipped with a power device to drive the mow blade (walking type), etc. have.

Meanwhile, since the conventional self-propelled mower is configured to cut off the hem of a weeding material requiring weeding, it is unsuitable for cutting crops such as weeds and leeks having a long length.

That is, when a long length of weeding material is cut through a rotating blade, the weeding material cut by the rotating blade is wound up to increase the load generation of the device, and there is a limitation that the weeding material is cut in a long state.

KR 10-1685449 B1 KR 10-0809175 B1 KR 10-1601806 B1

An object of the present invention conceived to solve the above problems is to safely segment and remove herbicides including various crops such as weeds and leeks grown on farmland while moving and moving along farmland,

In particular, by performing an upright cutting process and a horizontal cutting process step by step through the mounted complex weeding unit, the upper layer of the long weeding material is first removed, and then the hem of the weeding material from which the upper layer has been removed secondarily is removed. It is to provide a self-propelled complex weeding apparatus having an improved upright weeding unit that can stably cut and remove long weeds.

The above object is achieved by the following configuration provided in the present invention.

Self-propelled complex weeding apparatus having an improved upright weeding unit according to the present invention,

A driving vehicle body with a steering wheel formed at the rear,

A pair of driving wheels disposed on both sides of the rear part of the driving vehicle body to support the driving vehicle body in a cloud spaced apart from the open ground, and driving in a forward direction by receiving a rotational force from a driving motor;

A horizontal shaft horizontally disposed in the front and lower portions of the front part of the traveling vehicle body; A first weeding motor providing rotational force to the horizontal axis; And an upright weeding unit having an upright cutting blade arranged in a radial structure at the outer diameter of the horizontal axis, and cutting the upper layer of the weeding material while turning up and down around the horizontal axis by one direction rotation of the horizontal axis. Including a compound weeding unit,

Guide brackets with assembly holes are formed in a radial structure on the outer wall of the horizontal axis, and an upright cutting blade with a hinge structure at the rear end through an assembly pin penetrating through the assembly hole is disposed in the guide bracket, The blades are configured to cut the upper layer of the weeding material while turning up and down while standing upright on the horizontal axis by centrifugal force generated by the rotation of the horizontal axis.

Preferably, the assembly hole formed in each of the guide brackets is composed of a long long hole, the upright cutting blade, and the assembly pin fixed to the hinge structure is configured to move inward and outward along the assembly hole made of a long hole, while the The assembly pin is configured to be elastically traction inward by the traction spring, and the advance distance is elastically increased or decreased according to the rotational speed of the horizontal axis.

More preferably, in each of the guide brackets, a pair of upright cutting blades in which the cutting blades are bent outward are arranged symmetrically to each other, so that the upper layer of the herbicides is a cutting blade portion of each upright cutting blade that turns up and down in an upright state. It is configured to be cut by.

As described above, the self-propelled composite weeding apparatus according to the present invention is configured to sequentially perform an upright cutting process for cutting the upper layer of the weeding material and a horizontal cutting process for cutting and removing the hem of the herbicide from which the upper layer has been removed.

Therefore, in the present invention, when cutting crops such as long weeds or leeks, since the stepwise cutting of the weeds is made, the long weeds are wound around the upright cutting blade or the horizontal cutting blade to increase the load of the device. Stopping work can be prevented.

In particular, since the composite weeding unit according to the present invention cuts the weeds in different directions and weeds them, it has the specificity of improving the efficiency according to the weeding of the weeds.

1 and 2 show the overall configuration of the self-propelled hybrid weeding apparatus proposed as a preferred embodiment in the present invention,
3 and 4 are self-propelled hybrid weeding apparatus proposed as a preferred embodiment in the present invention, showing the height adjustment of the vehicle body through the auxiliary wheel and the weeding state through the complex weeding unit,
5 and 6 show a detailed configuration of an upright weeding unit constituting the complex weeding unit in the self-propelled hybrid weeding apparatus proposed as a preferred embodiment in the present invention,
7 and 9 show a detailed configuration of a horizontal weeding unit constituting a complex weeding unit in the self-propelled hybrid weeding apparatus proposed as a preferred embodiment of the present invention.

Hereinafter, a self-propelled hybrid weeding apparatus proposed as a preferred embodiment in the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 show the overall configuration of the self-propelled hybrid weeding apparatus proposed as a preferred embodiment in the present invention, and FIGS. 3 and 4 are the self-propelled hybrid weeding apparatus proposed as a preferred embodiment of the present invention. So, it shows the height adjustment of the vehicle body through the auxiliary wheel and the weeding state through the complex weeding unit, and Figs. 5 and 6 are in the self-propelled complex weeding apparatus proposed as a preferred embodiment in the present invention, the complex weeding unit 7 and 9 show the detailed configuration of the horizontal weeding unit constituting the complex weeding unit in the self-propelled hybrid weeding apparatus proposed as a preferred embodiment in the present invention. .

The self-propelled hybrid weeding device 1 proposed as a preferred embodiment of the present invention is self-driving along the field where long weeds such as weeds and leeks grow as shown in FIGS. 1 to 2 and 4 It is a dedicated device that cuts and weeds the herbicides while moving.

The self-propelled composite weeding device 1 is disposed on both sides of the rear part of the traveling vehicle body 10, respectively, as shown in FIGS. 1 to 4 to support the traveling vehicle body 10 to be spaced apart from the open ground, and the traveling motor ( A pair of driving wheels 20 for receiving rotational force from 21) and driving in a forward and reverse direction; It is disposed in the first half of the traveling vehicle body 10, and is fixed to the traveling vehicle body 10 to travel while moving along the field to cut and weed the weeds grown in the field. do.

In this embodiment, the front part of the driving vehicle body 10, the upper and each side of the composite weeding unit 30 disposed in the front part of the driving vehicle body 10 are covered as a whole, and the front part of the driving vehicle body 10 In addition to preventing exposure of the upright weeding unit 30 disposed at the bottom, a weeding part cover 50 is added to prevent the dispersion of the weeds.

The traveling motor 21 provided in the traveling vehicle body 10 is driven in the forward and reverse direction by the control of the controller 12 provided in the steering wheel 11, and the shaft of the traveling motor 21 and the drive shaft of the drive wheel 20 ( 20a) are connected through a chain sprocket 23.

Further, a controller 12 and a high-load battery 13 supplying starting current to each motor are mounted at the rear of the traveling vehicle body 10, respectively, and the traveling vehicle body 10 is a high-load battery disposed at the rear. The weight is distributed back and forth by (13) and the composite weeding parts (30, 40) disposed in the first half to be formed.

In particular, in the present invention, in the first half of the traveling vehicle body 10, the first half of the traveling vehicle body 10 is supported by rolling, and the distance between the traveling vehicle body 10 and the road is set, An auxiliary wheel assembly 60 for adjusting the height of the weeding portions 30 and 40 is provided.

The auxiliary wheel assembly 60 according to the present embodiment, as shown in FIG. 3, is arranged in an upper and lower hinge structure through a hinge pin 61a at both sides of the front part of the driving vehicle body 10, and an auxiliary wheel 63 at the rear end. A lever arm 61 having a link end 61b formed at the front end thereof; Leverage arm that is assembled in a link structure with the link end 61b of the lever arm 61, and pulls the link end 61b of the lever arm 61 up and down, and auxiliary wheels 63 are assembled at the rear end, respectively. (61) It includes an elevating traction tool 62 to set the upright angle constant.

Here, the elevating traction tool 62 is assembled in a link structure with the link end 61b of the lever arm 61 disposed on both sides of the driving vehicle body 10, and the traction is arranged in a lifting structure on the driving vehicle body 10 A frame 62a; A ball screw member 62b that is fastened through the traction frame 62a to traction the traction frame 62a up and down according to the amount of fastening, thereby changing the upright angle of the lever arm 61 to which the auxiliary wheel 63 is assembled. Includes.

That is, when the worker rotates the ball screw member 62b in the forward direction as shown in FIG. 3, the traction frame 62a descends, and the upright angle of the lever arm 61 fixing the auxiliary wheel 63 gradually decreases, and thus the traveling vehicle body ( The gap between 10) and the open ground is narrowed.

On the contrary, when the operator rotates the ball screw member 62b in the reverse direction, the traction frame 62a rises, and the upright angle of the lever arm 61 fixing the auxiliary wheel 63 gradually increases, so that the driving vehicle body 10 and the The distance between the roads is widened, and through this, the distance between the first half of the driving vehicle body 10 and the road may be easily set.

In particular, in the lever arm 61, the distance between the hinge pin 61a and the link end 61b is formed longer than the distance between the hinge pin 61a and the auxiliary wheel 63, so that the elevating traction tool 62 Is to set the distance between the auxiliary wheel 63 and the running vehicle body 10 for changing the upright angle by the traction force provided through the elevating traction tool 62 through the lever action of the lever arm 61.

Accordingly, the operator drives the driving motor 21 through the controller 12 as shown in FIG. 4 to drive the driving vehicle body 10 by the driving wheels 20, while a steering wheel formed at the rear of the driving vehicle body 10 ( By gripping 11), the traveling vehicle body 10 is shifted in the left and right direction to drive along the open ground where weeding material requiring weeding is formed.

In addition, in the present invention, the complex weeding units 30 and 40 having a multi-stage weeding structure are provided in the first half of the traveling vehicle body 10 so that long weeding substances such as leeks can be stably removed.

That is, the composite weeding units 30 and 40 according to the present embodiment are primarily cut and removed from the upper layer of the long weeding material, as shown in FIGS. 4 to 8, and then secondarily close the weeding material from which the upper layer is removed. By configuring to remove by cutting, it suppresses the occurrence of overload of each component constituting the composite weeding unit (30, 40) with stable removal of the weeding material.

The composite weeding units 30 and 40 proposed as a preferred embodiment of the present invention include an upright weeding unit 30 disposed below the front half of the driving vehicle body 10 to cut the upper layer of the weeding material; And a horizontal weeding unit 40 disposed below the front of the first half of the traveling vehicle body 10 and cutting and removing the tight ends of the weeding material from which the upper layer has been removed while passing through the upright weeding unit 30.

The upright weeding unit 30, as shown in Figs. 5 and 6, the horizontal shaft 31 horizontally disposed in the front lower part of the front half of the driving vehicle body 10; A first weeding motor (33) providing a rotational force to the horizontal shaft (31); And an upright cutting blade 32 disposed in a radial structure on the outer diameter of the horizontal shaft 31 to cut the upper layer of the weeding material while turning vertically around the horizontal shaft 31 by one direction rotation of the horizontal shaft 31 do.

In this embodiment, a valve pulley structure is provided between the driving shaft of the first weeding motor 33 and the horizontal shaft 31 so that the horizontal shaft 31 rotates in one direction by the driving of the first weeding motor 33.

In particular, in this embodiment, an improved elastic sticking structure is provided between the horizontal shaft 31 and the upright cutting blade 32, so that the upright cutting blade 32 can be elastically adhered.

To this end, in the present embodiment, as shown in FIGS. 5 to 6, a guide bracket 31a having assembly holes 31a-a formed on the horizontal shaft 31 is formed in a radial structure.

In addition, an upright cutting blade 32 having the rear end hinged through an assembly pin 32a penetrating through the assembly hole 31a-a is disposed in the guide bracket 31a, and an upright cutting blade installed in the hinge structure The 32 cuts the upper layer of the weeding material while turning up and down while standing upright on the horizontal shaft 31 by the centrifugal force generated by the rotation of the horizontal shaft 31.

At this time, as shown in FIG. 6B, a pair of upright cutting blades 32 in which the cutting blades 32b are bent outward, respectively, are arranged symmetrically on each of the guide brackets 31a, so that the upper layer of the weeds is in an upright state The cutting is made by the cutting blade portion 32b of each upright cutting blade 32 that rotates vertically.

In addition, an auxiliary cutting blade 32' having a toothed blade is disposed between the upright cutting blades 32 so that the distance between these upright cutting blades 32 is kept constant, and the auxiliary cutting blade 32' The upper layer of the herbicide is cut more stably.

In particular, in this embodiment, the upright cutting blades 32 arranged in a hinged structure on the horizontal shaft 31 are configured to increase the advance distance according to the rotational speed of the horizontal shaft 31, so that the upright cutting blades 32 ) Is suppressed from the occurrence of the load of the first weeding motor 33 due to excessive protrusion, and by adjusting the turning radius of the upright cutting blade 32 through the adjustment of the rotation speed, the upright cutting blades 32 It is possible to adjust the cutting range of the upper layer of the herbicide to be cut.

To this end, in the present embodiment, the assembly hole 31a-a formed in each of the guide brackets 31a is configured as a long hole, and the upright cutting blade 32 and the assembly pin 32a fixing it with a hinge structure are It is configured to be able to advance and retreat in and out along the assembly hole (31a-a) made of a long hole.

In particular, in this embodiment, the assembly pin (32a) is configured to be elastically traction inward by the traction spring (32b), so that the advancing distance is elastically increased or decreased according to the rotational speed of the horizontal shaft (31).

That is, the upright cutting blades 32 assembled in a radial structure on the horizontal shaft 31 through the guide bracket 31a and the assembly pin 32a are elastic according to the rotational speed of the horizontal shaft 31 as shown in FIG. It is possible to develop and resilient entry and exit.

Through this, the operator adjusts the driving speed of the first weeding motor 33 through the controller 12, and adjusts the rotational speed of the horizontal shaft 31 according to the state of the weeding material required to erect the upright cutting blades 32. By organically increasing or decreasing the cutting radius through the adjustment of the angle and the entry/exit distance, efficient weeding of the upper layer of the weeding material can be achieved.

In addition, in this embodiment, the guide bracket 31a arranged in a radial structure on the horizontal shaft 31 has a support spring 32c that elastically supports the tail of the upright cutting blade 32 assembled in a hinge structure as shown in FIG. 6A. By arranging, the impact applied to the upright cutting blade 32 during the cutting process of the upper layer of the weeding material is configured to be attenuated by the elastic support force of the support spring (32c).

Therefore, the upright weeding unit 30 constituting the composite weeding unit is organically adjusted the cutting radius by adjusting the centrifugal force according to the rotation of the horizontal axis 31, the upright angle and the direct entry distance according to the centrifugal, and the upright cutting blade With the buffer structure that attenuates the impact of (32), the upper layer of the weeding material required can be cut and removed without excessive load on each component.

In addition, the horizontal weeding unit 40, which is disposed at the rear of the upright weeding unit 30, cuts and removes the close ends of the weeding material from which the upper layer has been removed, as shown in FIGS. 4 and 7 to 8, An upright shaft 41 disposed to be upright at the rear lower portion of the first half of (10); A second weeding motor 43 providing rotational force to the upright shaft 41; And horizontally arranged in a radial structure below the upright shaft 41 and rotates horizontally around the upright shaft 41 by one direction rotation of the upright shaft 41, cutting the bottom of the weeding material with the upper layer removed. Includes a cutting blade (42).

In this embodiment, the upright shaft 41 is directly connected to the drive shaft of the second weeding motor 43 disposed upright on the traveling vehicle body 10, and a pair of horizontal The cutting blade 42 is arranged in a radial structure.

In addition, an elastic clutch part 44 is formed between the upright shaft 41 and the drive shaft of the second weeding motor 43 as shown in FIG. 7, so that the upright shaft 41 and the horizontal disposed on the upright shaft 41 When an overload of the cutting blade 42 occurs, the connection state between the upright shaft 41 and the drive shaft of the second weeding motor 43 is temporarily elastically released.

The elastic clutch part 44 is a fixed clutch member that is formed in a radial structure with engaging protrusions on the opposite surface, and is fixedly installed on one of the driving shafts of the facing upright shaft 41 and the second weeding motor 43 (44a) and; The movable clutch member 44b is installed in an advancing and retracting structure on the other of the drive shafts of the upright shaft 41 and the second weeding motor 43, and engaging protrusions engaged with the fixed clutch member 44a on the opposite surface are formed in a radial structure. ); And an elastic pressing member 44c for elastically pressing the movable clutch member 44b to elastically engage the fixed clutch member 44a.

In addition, in this embodiment, as shown in FIG. 7, an elevating slot 41c with an open lower portion is formed at the lower end of the upright shaft 41, and the elevating slot 41c has a downward impact by a coil spring 41b. The supported head 41a is formed to protrude downward.

Therefore, the upright shaft 41 with the upper end fixed to the second weeding motor 43 rotates while the lower end is fixed to the ground through the support head 41a, and as a result, the upright shaft 41 supports each end. Since it rotates in one state, the occurrence of shaking of the support shaft 41 and the weeding device 1 including the same can be minimized.

In particular, since the support head 41a is pressed downward by the coil spring 41b, even if the height of the traveling vehicle body 10 and the upright shaft 41 is changed by the auxiliary wheel assembly 60, the ground is always It is possible to rotate while supported on.

In addition, as shown in FIG. 8, shoulder blade portions 42a having the shoulder attachment groove 42b are formed on both sides of the horizontal cutting blade 42, and the bottom of the weeding material from which the upper layer portion is removed enters the shoulder attachment groove 42b. It is to be cut horizontally by the shoulder blade portion 42a.

At this time, the shoulder attachment groove (42b) is formed of a beveled edge (42b-a) in which one side is inclined, and the two sides are made of a barb shape in which a stepped edge (42b-b) of a stepped structure is formed, and a horizontal cutting edge (42) In the rotation process of the weeding material enters the cross section along the bevel edge (42b-a) constituting the shoulder groove (42b), and then to the crossing bevel edge (42b-a) and the step edge (42b-b). To make the cut.

That is, the close end of the weeding material is not cut while being hit by the blade portion of the horizontal cutting blade 42 that rotates horizontally, but enters along the beveled edge 42b-a forming the shoulder attachment groove 42b during the cutting process. Since the cutting is made while being wound around the cross section formed in the chak groove 42b, it is possible to formally cut the herbicidal end.

More preferably, the horizontal cutting blade 42 has an elastic take-out rope 45 disposed in the longitudinal direction as shown in FIG. 9, so that foreign substances remaining in the shoulder blade portion 42a and the shoulder contact groove 42b are elastic takeout ropes ( 45), thereby preventing the phenomenon that the cutting force is reduced by residual foreign matter.

Therefore, the weeds growing in the open field are first weeding the upper layer by the upright weeding unit 30 mounted on the front part of the driving vehicle 10 that self-driving along the open field as shown in FIG. 4, and then the horizontal weeding unit Stable cutting of the tight ends of the weeds from which the upper layer has been removed by (40) is made.

In particular, the horizontal cutting blade 42 of the horizontal weeding unit 40 according to the present invention is cut by attaching the hem of the weeding material through the shoulder blade portion 42a of the barb-shaped shoulder attachment groove 42b. Tear-off is possible.

1. Self-propelled complex weeding device
10. Driving body 11. Steering wheel
12. Controller 13. Battery
20. Drive wheel 20a. driving axle
21. Driving motor
22. Controller 23. Chain sprocket
30. Upright weeding unit 31. Horizontal axis
31a. Guide bracket 31a-a. Assembler
32. Upright cutting blade 32a. Assembly pin
32b. Cutting blade 32b. Traction spring
32c. Support spring 33. No. 1 mowing motor
40. Horizontal weeding unit 41. Upright shaft
41a. Support head 41b. Coil spring
41c. Elevating slot
42. Horizontal cutting blade 42a. Shoulder blade
42b. Shoulder groove 42b-a. Beveled edge
42b-b. Step edge
43. The second weeding motor
44. Elastic clutch part 44a. Fixed clutch member
44b. Movable clutch member 44c. Elastic pressing member
45. Elastic take-out rope
50. Weed cover
60. Auxiliary wheel assembly 61. Leverage arm
61a. Hinge pin 61b. Link stage
62. Colossus Traction 62a. Tow frame
62b. Ball screw member 63. Auxiliary wheel

Claims (3)

A driving vehicle body with a steering wheel formed at the rear,
A pair of driving wheels disposed on both sides of the rear part of the driving vehicle body to support the driving vehicle body in a cloud spaced apart from the open ground, and driving in a forward direction by receiving a rotational force from a driving motor;
A horizontal shaft horizontally disposed in the front and lower portions of the front part of the traveling vehicle body; A first weeding motor providing rotational force to the horizontal axis; And an upright weeding unit having an upright cutting blade arranged in a radial structure at the outer diameter of the horizontal axis, and cutting the upper layer of the weeding material while turning up and down around the horizontal axis by one direction rotation of the horizontal axis. Including a compound weeding unit,
Guide brackets with assembly holes are formed in a radial structure on the outer wall of the horizontal axis, and an upright cutting blade with a hinge structure installed at the rear end through an assembly pin penetrating through the assembly hole is disposed in the guide bracket, and an upright cutting installed in the hinge structure The blades are configured to cut the upper layer of the weeding material while turning up and down while standing upright on the horizontal axis by centrifugal force generated by the rotation of the horizontal axis,
The assembling hole formed in each of the guide brackets is composed of a long long hole, and the upright cutting blade and the assembling pin fixed with the hinge structure allow the assembling hole to advance and retreat inward and outward along the assembling hole made of a long hole. While adjusting the cutting range of the upper layer of the weeding material cut by the upright cutting blade by adjusting the radius, the assembly pin is configured to be elastically pulled inward by the traction spring, and the advance distance is elastically increased or decreased according to the rotational speed of the horizontal axis. Configured to be,
Each guide bracket is provided with a support spring that elastically supports the tail of the upright cutting blade assembled in a hinged structure, and is configured to attenuate the impact applied to the upright cutting blade during the cutting process of the upper layer of the weeding material. Self-propelled complex weeding device having an upright weeding unit. delete The method of claim 1, wherein each of the guide brackets has a pair of upright cutting blades in which the cutting blades are bent outwardly, horizontally and symmetrically, so that the upper layer of the weeds is upright and rotates up and down. Self-propelled hybrid weeding apparatus having an improved upright weeding unit, characterized in that the cutting is made by the blade.

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