KR101581841B1

KR101581841B1 - Weeding device for excavators

Info

Publication number: KR101581841B1
Application number: KR1020150129898A
Authority: KR
Inventors: 염규동
Original assignee: (주)거웅건설
Priority date: 2015-09-14
Filing date: 2015-09-14
Publication date: 2015-12-31

Abstract

The present invention relates to a weeding apparatus for an excavator, and more particularly, to a weeding apparatus for an excavator that selectively removes a weed plant or the like on an inclined surface through tilting and rotating by selectively attaching a weeding apparatus to the excavator.
The structure of the present invention includes a main body 100 provided with an attachment 110 mounted on an arm end of an excavator at an upper center of the main body 100 and a hydraulic motor 120 provided at one side of the main body 100, A kneading knife 300 installed at a predetermined interval on the rotary shaft 200 to be horizontally installed on both ends of the main body 100, And a support roller (400) installed to support the main body, wherein the attachment (110) is formed with a pair of retaining rods (112) at the upper portion so as to be caught and fixed to the arm end of the excavator And two fluid inlet passages 113a and 113b formed in the central portion of the fixing portion 111 so as not to communicate with each other so as to be connected to the hydraulic hose 140 A hydraulic hose connection part 113, And two fluid transfer passages 114a and 114b are formed on the inner and outer peripheral surfaces 113a and 113b so as to communicate with the two fluid inlet passages 113a and 113b, A driving motor 115 that is gear-coupled to the rotary gear unit 114 and rotates the rotary gear unit 114; and a driving motor 115 that is coupled to the upper surface of the rotary shaft unit 114, Two fluid draw-out holes 116a are formed so as to communicate with the movement passages 114a and 114b and a lower rotation plate 116 is provided on the upper portion of the main body 100. The two fluid draw- A fluid transfer hose 121 is provided to be connected to the hydraulic motor 120 so as to supply the fluid supplied through the hydraulic hose 140 to the hydraulic motor 120, 100 are connected via a roller bracket 410 to both ends thereof The roller bracket 410 and the main body 100 are spaced apart from the main body 100. The roller bracket 410 has one side fixed to the main body 100 by a hinge shaft 420, And an elastic member 430 is provided to extend the support roller 400 in the direction of the paper surface to apply an elastic force to the support roller 400.

Description

Weeding device for excavators

The present invention relates to a weeding apparatus for an excavator, and more particularly, to a weeding apparatus for an excavator that selectively removes a weed plant or the like on an inclined surface through tilting and rotating by selectively attaching a weeding apparatus to the excavator.

In general, the weeding work for removing weeds, grasses, and grasses grown in the summer season is carried out by manually lifting and lifting a cutter equipped with an engine having a weight of 20 to 30 kg, The worker feels fatigue easily, and the speed of the work is slowed down by the heavy material, so that a large amount of work can not be performed. Therefore, a lot of workforce is required to be inevitable.

To solve these problems, Korean Patent Registration No. 10-0448278, Patent Publication No. 2012-0019093, Utility Model Publication No. 2015-0000811 are disclosed.

The conventional weeding apparatus for excavator has a herbicide device attached to an excavator capable of freely entering a special area such as a grassland, a hill, a hill, And the herbicidal action is carried out while keeping it.

In the conventional weeding apparatus for excavator including the above-described manufacturing apparatus, a supporting roller is horizontally installed at a lower portion of one side of the main body in order to smoothly carry out a weeding operation by supporting the main body on the ground. The support roller is rotatably mounted on the main body and rotates while being supported on the ground.

However, since the support roller installed in the conventional weeding apparatus is connected to the main body via the bracket, the bracket easily bends due to its own weight or external pressing force, and thus the support roller does not function as the support roller. In addition, when the shaft of the support roller is broken or warped other than the bending problem of the bracket, the support roller itself must be replaced, thereby increasing the maintenance cost such as the replacement cost.

In addition, since it can not effectively cope with the condition of the ground such as bending, the body can not be properly supported, and thus it has been difficult to carry out the herbicidal operation.

In addition, since the conventional weeding apparatus is capable of only tilting rotation, the weeding apparatus can not be horizontally rotated according to the ground condition, and when the attachment is horizontally rotatable, the attachment is connected to the main body and then horizontally rotated, The hydraulic hose installed to be connected to the hydraulic motor along the boom of the excavator is twisted and twisted in accordance with the rotational motion of the main body so as to damage the hydraulic hose and the horizontal rotation operation of the main body is not smooth And there was an inconvenience in weeding work.

Open Patent Publication No. 2012-0019093 (2012.03.06, Rotary type vegetation removal device using excavator) Public utility model publication No. 2015-0000811 (Feb.25.25, 2015, weeding apparatus for excavator)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an apparatus and a method for controlling a mowing machine, The present invention also provides a weaving machine for an excavator which can perform a weeding operation in response to a condition such as a ground surface by causing the body to be horizontally rotated as well as tilting.

Another object of the present invention is to provide a weaving machine for an excavator which is capable of stably supporting the main body by dividing the supporting roller into a plurality of unit rollers and arranging the unit rollers at different positions according to the ground condition.

According to an aspect of the present invention, there is provided a hydraulic excavator comprising: a main body (100) having an attachment (110) mounted on an arm end of an excavator at an upper center thereof; a hydraulic motor A milling cutter 300 installed at a predetermined interval on the rotary shaft 200 and a rotary shaft 200 mounted on the rotary shaft 200 to be horizontally installed in the body 100 so as to be rotated by receiving a driving force, And a support roller (400) attached to one side of a lower portion of the excavator so as to support the main body, wherein the attachment (110) comprises a pair of upper A fixed portion 111 formed at the center of the fixing portion 111 and having a stopper rod 112 formed thereon, and two fluid inlet passages 111, 112 provided at the penetrating portion of the central portion of the fixed portion 111, (113a, 113b) And two fluid passages 114a and 113b communicating with the two fluid inlet passages 113a and 113b, respectively. The fluid passages 114a and 113b are connected to the hydraulic hose connection part 113 via bearings, A driving motor 115 that is gear-coupled to the rotary gear unit 114 and rotates the rotary gear unit 114; a driving motor 115 that is coupled to the rotary gear unit 114, Two fluid draw-out holes 116a are formed on the upper surface of the main body 100 so as to communicate with the fluid moving passages 114a and 114b and a lower rotating plate 116 is provided on the upper portion of the main body 100, A fluid transfer hose 121 is installed in the two fluid extraction holes 116a so as to be connected to the hydraulic motor 120 so as to supply the fluid supplied through the hydraulic hose 140 to the hydraulic motor 120, The support roller 400 is fixed to one side of the lower portion of the main body 100, The roller bracket 410 is installed on the main body 100 so as to be hinged by the hinge shaft 420 so that the roller bracket 410 is hinged to the main body 100, An elastic member 430 is installed between the bracket 410 and the main body 100 to apply the elastic force to the support roller 400 by pulling the support roller 400 in the direction of the paper surface.

According to the weaving machine for an excavator having the above-described configuration, the supporting roller can be made to operate in a buffered state, so that the weeding operation can be conveniently performed while minimizing the breakage of the supporting roller, When the support roller is divided into a plurality of unit rollers, the unit rollers support the main body at different positions according to the ground conditions. So that it is possible to carry out the weeding operation while being stably supported even when the ground is irregular.

1 is a perspective view of a weaving apparatus for an excavator according to the present invention,
Fig. 2 is a view showing the state of the support roller in the weaving apparatus for an excavator according to the present invention,
FIG. 3 is a side view of a weaving apparatus for an excavator according to the present invention,
4 is a cushioning operation state of the support roller according to the use of the weaving apparatus for an excavator according to the present invention,
FIG. 5 is a perspective view showing a weaving apparatus for an excavator in which a support roller according to the present invention is divided into a plurality of unit rollers,
FIG. 6 is a view showing a state of engagement of the unit rollers according to the present invention,
FIG. 7 is a diagram showing a buffer operation state of the unit roller according to the use of the weaving apparatus for an excavator according to the present invention,
8 is an exploded perspective view showing an attachment of an excavator weaving apparatus according to the present invention,
Figure 9 is an assembled cross-sectional view of Figure 8,
FIG. 10 is a sectional view showing an attachment having an insertion projection and a projection insertion groove according to the present invention,
11 is a cross-sectional view showing a process of moving the fluid according to the present invention.

Hereinafter, a weaving apparatus for an excavator according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in the drawing, the weeding apparatus for an excavator according to the present invention includes a main body 100 provided with an attachment 110 mounted on an arm end of an excavator, and a hydraulic motor A kneading knife 300 installed at a predetermined interval on the rotary shaft 200 to rotate the rotary shaft 200 horizontally and supported at both ends thereof in the body 100 so as to be rotated by receiving the driving force of the knife 120; And a support roller 400 installed on one side of the lower portion of the main body 100 to support the main body by being in close contact with the surface of the main body 100. The support roller 400 is installed to be buffered with respect to the main body.

The structure of the main body 100, the rotary shaft 200, the kneading knife 300, and the support roller 400 is well known in the art, and a detailed description thereof will be omitted. .

The weeding apparatus of the present invention is configured to apply an elastic force to the support roller 400 so that the support roller 400 performs a buffer operation with respect to the main body 100. The support roller 400 is disposed at a lower side of the main body 100 Preferably, both ends of the rear portion of the main body 100 are connected to each other through a roller bracket 410 to be spaced apart from the main body 100.

At this time, the roller bracket 410 is hinged on one side of the main body 100 by a hinge shaft 420 so that the support roller 400 can rotate.

An elastic member 430 is installed between the roller bracket 410 and the main body 100 to urge the support roller 400 in the direction of the paper surface and to apply an elastic force to the support roller 400.

The elastic member 430 may be a tension spring.

Accordingly, when the driver of the excavator moves the weeding apparatus to the corresponding position and then moves down to support the support roller 400 on the ground, the support roller 400 is buffered to minimize the impact applied to the main body And the operator performs the weeding operation while moving the main body while the support roller 400 is supported on the ground.

Here, the weeding apparatus is provided with a guide means for smoothly moving the support roller 400 without being twisted during buffering operation. A guide hole 130 having a rectangular or arcuate shape is formed on one of the side surface of the main body 100 and the roller bracket 410 and the guide hole 130 is formed on the other side of the guide hole 130 So that the guide protrusion 411 is moved along the guide hole 130.

Accordingly, the guide protrusion 411 is guided and guided by the guide hole 130 during the buffering operation of the support roller 400, thereby enabling smooth movement of the support roller without backlash.

In this case, the main body has a length of about 1 to 1.5 m, which is relatively bulky compared to a general grass mower, and the length of the support roller 400 is formed to have a length corresponding thereto, There is a case in which the weaving operation is carried out while the rollers are not stably supported on the ground. In such a case, it is difficult to carry out the weeding operation.

In order to solve this problem, the support roller 400 of the present invention may be composed of two or more unit rollers 401 and 402 separated from each other as another embodiment.

When the support rollers are constituted by a plurality of unit rollers, both end portions of the unit rollers are connected to the main body 100 by roller brackets 410, respectively, so that the unit rollers may be buffered will be.

Therefore, as shown in FIG. 6, each of the plurality of unit rollers can stably support the main body while varying its position according to ground conditions, weeds, and the like.

Meanwhile, the weeding apparatus of the present invention is configured to rotate the rotary shaft 200 by a driving force of a hydraulic motor, and is connected to a hydraulic tank installed in the excavator main body and a hydraulic hose for supplying fluid to the hydraulic motor 120. In this case, when the hydraulic hose is directly connected to the hydraulic motor 120, the hydraulic hose is twisted or tensed more than a certain angle in the horizontal rotation operation of the main body through the attachment, resulting in breakage of the hydraulic hose there was.

In order to solve this problem, in the present invention, the hydraulic hose is connected to the attachment to receive the fluid through the attachment, thereby preventing the possibility of twisting the hydraulic hose in advance, so that the supply of the fluid smoothly Respectively.

The attachment for supplying the fluid is composed of a fixing part 111, a hydraulic hose connecting part 113, a rotating machine part 114, a driving motor 115 and a lower rotating plate 116.

Specifically, the fixing part 111 is formed so as to penetrate the central part, and a bracket is vertically formed on the upper part, and a pair of locking bars 112 are formed between the brackets. The latching rods 112 are spaced apart from one another and are arranged parallel to each other, and are hooked on the end of the arm of the excavator.

The hydraulic hose connection part 113 is provided at a penetrating part of the central part of the fixing part 111 and two fluid inlet passages 113a and 113b are formed so as not to communicate with each other so as to be connected to the hydraulic hose 140 . The fluid intake passages 113a and 113b are formed in the shape of a circular ring at a predetermined depth along the circumference on the lower surface of the hydraulic hose connection portion, and each fluid inlet passage is partially penetrated to one side of the upper surface of the hydraulic hose connection portion 113 And is connected to the hydraulic hose.

In the drawing, the fluid inlet passage 113a is shown to be located in the outer direction of the hydraulic hose connection, and another fluid inlet passage 113b is provided inside the fluid inlet passage 113a.

The rotary gear unit 114 is coupled to the hydraulic hose connection unit 113 via a bearing and is rotatably installed, and gears are formed on the inner circumferential surface or the outer circumferential surface. In the accompanying drawings, gears are shown on the inner peripheral surface.

In the rotary body part 114, two fluid passages 114a and 114b are formed so as to be opposed to the two fluid inlet passages 113a and 113b formed on the lower surface of the hydraulic hose connection part, Is formed. The fluid transfer passages 114a and 114b are formed along the circumference on the upper surface of the rotary shaft unit 114, and a part of the fluid transfer passages 114a and 114b are formed to pass through the lower surface of the rotary shaft unit.

Since the upper surface of the rotating body part 114 is in close contact with the lower surface of the hydraulic hose connecting part 113, even though the rotating body part 114 is rotated, the fluid entering path and the fluid moving path are always communicated with each other, This is possible.

The driving motor 115 is configured so as to be coupled to the rotary shaft unit 114 so as to rotate the rotary shaft unit 114 and is provided in the fixing unit 111 so that the driving shaft passes through the hydraulic hose connecting unit 113 .

The lower rotary plate 116 is coupled to the upper surface of the rotary shaft 114 and has a fluid outlet hole 114a communicating with the fluid transfer passages 114a and 114b formed on the lower surface of the rotary shaft 114, And a lower portion is coupled to the main body 100.

Here, the lower rotation plate 116 is configured to horizontally rotate by the driving motor 115 and tilted by a tilting shaft 150, thereby rotating the main body horizontally or tilting.

The tilting rotation of the main body may be implemented to be freely rotated according to the inclination angle of the ground, or a separate cylinder may be provided and tilted by the operation of the cylinder.

For the tilting operation of the main body, the attachment 110 is fixed to the upper portion of the main body 100 by a tilting shaft 150. Accordingly, it is possible to carry out the weeding operation with the main body effectively adhering to the ground according to the working conditions such as the ground condition, thereby making it possible to perform uniform weeding.

Of course, the fixed shaft 160 may be installed on the upper portion of the main body 100 so as to be fitted to the lower rotation plate 116 of the attachment adjacent to the tilting shaft 150 to limit the rotation of the lower rotation plate 116 have.

The fixed shaft 160 may be used when the weeding apparatus of the present invention is not used or when tilting is not required. In the present invention, the tilting is restricted by using the fixed shaft 160, The tilting can be restricted by using a driving means such as a driving means.

At this time, a fluid transfer hose 121 is installed on the lower surface of the lower rotating plate 116 so that both ends are connected to the two fluid extraction holes 116a and the hydraulic motor 120, respectively. The fluid transfer hose 121 is connected to the lower rotating plate 116 and rotates together with the main body when the main body rotates horizontally.

Since the weeding apparatus of the present invention supplies the fluid to the hydraulic motor 120 through the attachment and the fluid transfer hose constructed as described above, even if the main body rotates horizontally, twisting of the fluid transfer hose does not occur, Can be blocked in advance.

On the other hand, although there is no possibility of breakage of the hydraulic hose even if the main body rotates by one or more revolutions, it is preferable to limit the rotation angle of the hydraulic hose in order to prevent a working convenience and a load on parts.

The rotation restricting bar 117 is provided on the lower edge of the fixing part 111 so that the rotation restricting bar 117 faces downward. A stopper 118 may be provided to limit the rotation angle of the lower rotating plate 116. [

The stopper 118 is prevented from hitting the rotation restricting bar 117 at a predetermined angle (for example, 180 ° or 360 °) during rotation of the lower rotation plate 116 in front of the rotation of the rotary body part 114 So that the rotation of the main body is reversed through the reverse rotation.

At this time, the driving motor can be controlled and configured to perform a reverse rotation operation when a pressure occurs at a pressure equal to or higher than a set pressure due to the stopper hitting the rotation restricting bar. Therefore, it is possible to prevent the breakage of the component that may occur as the stopper hits the rotation limiting bar, thereby reducing the maintenance cost.

In addition, it is natural that the drive motor is controlled to rotate in the reverse direction immediately when the stopper hits the rotation restricting bar, so that the possibility of component breakage can be prevented in advance.

In addition, the hydraulic hose connection part 113 of the present invention is preferably formed so as to surround the rotary body part 114 so that the rotary body part 114 is not exposed to the outside. The reason for this is to prevent the foreign material from being introduced into the bearing installed between the rotating machine unit 114 and the hydraulic hose connecting unit 113.

9, the lower surface of the hydraulic hose connection part 113 is in contact with the upper surface of the lower rotation plate 116. The foreign matter can be introduced through the interposed spaces, and the lower rotation plate 116 It is preferable to minimize the foreign matter entering into the space between the lower rotating plate and the hydraulic hose connecting portion.

10, a protrusion insertion groove 113c is formed in the lower surface of the hydraulic hose connection part 113 at a predetermined depth to form an upper surface of the lower rotation plate 116 facing the projection insertion groove 113c An insertion protrusion 116b is formed to be inserted into the protrusion insertion groove.

Therefore, even if the lower surface of the hydraulic hose connecting portion lifts up from the upper surface of the lower rotating plate 116, the insertion protrusion 116b blocks the foreign object from entering the bearing portion.

In the present invention, it is a matter of course that a control unit (not shown) is installed in the driver's seat of the excavator for controlling the drive motor 115 and the hydraulic motor 120.

According to the present invention configured as described above, when the main body is moved downward to the ground by using an excavator to perform a weeding operation, the support roller is supported on the ground to buffer the operation to mitigate the impact. At this time, It is possible to stably support the main body while varying its position corresponding to the bending condition of the ground.

Meanwhile, the operator performs the weeding operation by moving the main body while the support roller is supported on the ground. At this time, the main body is tilted or horizontally rotated according to the ground condition. Even if the main body is horizontally rotated, Since the fluid is supplied to the fluid inlet passage of the rotary shaft 113 through the fluid transfer passage of the rotary unit and the fluid outlet hole of the lower rotary plate, the fluid can be stably supplied without tangling of the hydraulic hose. It is possible to perform smoothly.

As described above, the present invention can provide not only a shock-absorbing operation of the main body at the time of weeding, but also a stable supply of fluid to the hydraulic motor, thereby reducing the maintenance cost, and further, to be.

100: main body 110: attachment
111: fixing part 112:
113: Hydraulic hose connection part 113a, 113b: Fluid inlet hole
113c: projection insertion groove 114:
114a, 114b: fluid transfer hole 115: drive motor
116: lower rotating plate 116a: fluid withdrawal hole
116b: insertion protrusion 117: rotation restriction bar
118: Stopper 120: Hydraulic motor
121: Fluid transfer hose 130: Guide ball
140: Hydraulic hose 150: Tilting shaft
160: fixed shaft 200: rotary shaft
300: Mowing blade 400: Support roller
401, 402: unit roller 410: roller bracket
411: Guide protrusion 420: Hinge axis
430: elastic member

Claims

A main body 100 installed at an upper center of the attachment 110 mounted on an arm end of an excavator and a hydraulic motor 120 installed at one side of the main body 100, A kneading knife 300 installed at a predetermined interval on the rotary shaft 200 to support the main body 100 in close contact with the ground on one side of the lower portion of the main body 100, 1. A weeding apparatus for an excavator comprising a support roller (400) installed,
The attachment 110 includes a fixing part 111 having a pair of hooking rods 112 formed at an upper portion thereof so as to be caught and fixed to an arm end of an excavator and having a central part penetrated therethrough, A hydraulic hose connection part 113 formed in the hydraulic hose connection part 113 and formed with two fluid inlet passages 113a and 113b so as not to communicate with each other so as to be connected to the hydraulic hose 140, A rotary shaft 114 having two fluid transfer passages 114a and 114b formed therein so as to communicate with the two fluid inlet passages 113a and 113b and having gears formed on an inner circumferential surface or an outer circumferential surface thereof, A driving motor 115 that is gear-coupled to the fisher unit 114 and rotates the rotating fisher unit 114; and a driving motor 115 coupled to the upper surface of the rotating fisher unit 114 and communicating with the fluid transfer passages 114a and 114b on the surface thereof. A fluid outlet hole 116a is formed, Consists of a lower rotating plate 116 installed on top of the 100,
The fluid transfer hose 121 is connected to the hydraulic motor 120 so as to supply the fluid supplied through the hydraulic hose 140 to the hydraulic motor 120,
The support roller 400 is installed on one side of the lower portion of the main body 100 so as to be spaced apart from the main body 100 at both ends thereof via a roller bracket 410. The roller bracket 410 has one side, The support roller 400 is pulled in the direction of the paper surface between the roller bracket 410 and the main body 100 to apply an elastic force to the support roller 400 Wherein an elastic member (430) is provided to guide the excavator.

The method according to claim 1,
A guide hole 130 is formed in a rectangular or arcuate shape on one of the side surface of the main body 100 and the roller bracket 410 and the other is guided along the guide hole 130 And a guide projection (411) is formed to be moved.

The method according to claim 1,
The supporting roller 400 is composed of two or more unit rollers 401 and 402 separated from each other and both ends of the unit rollers are connected to the main body 100 by roller brackets 410, Are provided so as to be cushioned differently from each other.

delete

The method according to claim 1,
The hydraulic hose connection part 113 is formed to enclose the rotary body part 114 so that the rotary body part 114 is not exposed to the outside,
The lower surface of the hydraulic hose connection part 113 is recessed at a predetermined depth to form a projection insertion groove 113c,
And an insertion protrusion (116b) is formed on the upper surface of the lower rotation plate (116) facing the projection insertion groove (113c) so as to be inserted into the projection insertion groove.

The method according to claim 1,
The attachment 110 is fixed to an upper portion of the main body 100 by a tilting shaft 150. The upper portion of the main body 100 is fitted to the lower rotation plate 116 adjacent to the tilting shaft 150 A fixed shaft 160 is provided to limit the rotation of the lower rotating plate 116,
And the tilting operation or tilting operation of the main body (100) is restricted in accordance with the working conditions.

The method according to claim 1,
One or more rotation restricting bars 117 are provided on the bottom edge of the fixing part 111 so as to face downward and the rotation restricting bar 117 is hooked on the upper surface edge of the lower rotating plate 116 A stopper 118 is provided to limit the rotation angle of the lower rotating plate 116,
Wherein the drive motor is controlled to rotate in the reverse direction immediately when the stopper (118) hits the rotation restricting bar (117) or when the pressure is generated above the set pressure.