KR101272579B1 - Conveying machinery for the use of cultivated land and conveying system having the same - Google Patents

Abstract

PURPOSE: A transport machine for an arable land is provided to facilitate tilting of guide wheel supporters by comprising an inner wall of an accommodating part in a movable form from a supporting shaft. CONSTITUTION: A transport machine comprises: a frame formed with a loading part to load things in the upper part; a wheel equipped on the frame, and formed to roll on the ground to move the loading part; a guide wheel(140) formed to be rolled along a monorail which is installed on the arable land; a guide wheel supporter(160) equipped with the guide wheel on one end thereof, and connected to a supporting shaft(171) to be rotated; and a spring(180) which pulls the other end of the guide wheel supporter, thereby the guide wheel can pressurize the monorail according to the rotation of the guide wheel supporter around the supporting shaft. The wheel(120) comprises front and rear wheels. A front supporter holding the shaft of the front wheel, and a rear supporter holding the shaft of the rear wheel are equipped on the frame to be able to be tilted. The front and rear supporters are connected to each other by a connecting part, thereby the front and rear supporters can be tilted together.

Description

Farming machinery for farmland moving along single track and conveying system with same {CONVEYING MACHINERY FOR THE USE OF CULTIVATED LAND AND CONVEYING SYSTEM HAVING THE SAME}

The present invention relates to a farmland transporting machine capable of transporting a transport object while moving along a single track on a farmland and a transport system having the same.

In general, orchards, farms, houses, etc. are used to provide a transport machine for transporting a variety of equipment, such as harvested harvest or fertilizer equipment, pesticide spraying equipment.

As such a transport machine, a transport machine mainly by a manpower, for example, a cart, has been used, and there is a problem in that the labor burden of the worker is increased.

In addition, depending on the situation, there is a case in which a large amount of the object to be transported, but the transport work by manpower is limited in the amount of the object to be transported at a time.

In order to solve this problem, the mechanization of the transport facility may be necessary. However, work sites such as orchards, farms, houses, etc. are not easy to mechanize because the transport machinery or equipment must be changed frequently as needed.

In order to solve the above problems, the Republic of Korea Patent Publication No. 10-0871087 has provided a transport machine that is provided with a track that is easy to install on the arable land, automatically traveling on the track. However, since sites such as orchards, farms, and plastic houses are mostly ground surfaces with uneven soil due to the characteristics of farmland, a mechanism for changing the traveling direction of the transporting machine has been proposed in Korean Patent Publication No. 10-0871087. However, there is a need for further improvement.

One object of the present invention is to provide a farmland transporting machine that runs more stably along a single track installed on the bottom of the farmland.

Another object of the present invention is to provide a conveying machine for a farmland and a conveying system having the same, which can satisfy both the four-wheel drive and the stable running of the curve section.

In order to achieve the above object of the present invention, the farmland conveying machine according to an embodiment of the present invention, the frame and the loading portion is formed so as to load the object to be transported on the upper, and the loading portion is mounted on the frame A wheel formed to be able to roll the bottom of the arable land so as to be movable in the arable land, a guide wheel configured to be rolled along a single track installed at the bottom of the arable land, and rotatably connected to the support shaft And a spring that pulls the other end of the guide wheel support such that the guide wheel presses the single track as the guide wheel support rotates about the support shaft. The wheel includes front and rear wheels, the front support for supporting the shaft of the front wheel and the rear support for supporting the shaft of the rear wheel are mounted to the frame so as to be tiltable.

According to an embodiment related to the present invention, the other end of the guide wheel support is formed with a receiving portion for receiving the support shaft, the receiving portion is the inner wall of the receiving portion so that the guide wheel support is tilted to both sides around the spring It is made of a form movable relative to the support shaft.

According to another embodiment related to the present invention, the farmland conveying machine includes a plurality of support bars protruding from the lower portion of the frame, each end of which is connected to both ends of the support shaft, and the receiving portion between the plurality of support bars. Is placed on.

The guide wheel support includes a first portion rotatably mounted to the guide wheel and a second portion parallel to both sides, and a second portion corresponding to the accommodation portion and inclined to both sides so as to be spaced apart from the plurality of support bars. do.

According to another example related to the present invention, the receiving portion is formed in the form of a long hole toward the front or rear of the frame. The inner wall of the receiving portion defining the long hole may be formed in a closed loop shape to limit the tilting of the guide wheel support.

According to another example related to the present invention, the wheel includes front and rear wheels, the frame is mounted with a drive unit, at least one of the front and rear wheels is formed to receive a driving force from the drive unit. The farmland conveying machine includes a chain connection for connecting the front and rear wheels to each other to be four-wheel driven.

The front and rear supports may be connected to each other by a connecting portion such that the front and rear supports are tilted together.

The front and rear wheels may be formed in a pair of left and right, respectively, and the front and rear support parts may be equipped with differential gear parts connected to the left and right sides so that the left and right sides are differentially rotated when the track is bent.

According to another example related to the present invention, a transport system including a track installed in the form of a monorail at the bottom of the farmland and a farm machinery for arable land disposed to be moved along the farmland is formed.

According to the farmland conveying machine according to the present invention configured as described above, as the inner wall of the receiving portion is formed to be movable relative to the support shaft, the guide wheel support can be tilted. In this way, the derailment of the guide wheels can be alleviated or prevented when the conveying machine moves along a curved track. In addition, as the receiving portion is formed in the long hole shape, the tilting mechanism of the guide wheel can be implemented with a simple structure.

In addition, four-wheel drive is realized as the front and rear wheels are connected by a chain connection. In addition, the front and rear wheels are turned together by the connecting portion, and through this, the four-wheel drive and four-wheel tilting which enable stable driving even on a non-flat surface may be implemented.

1 is a conceptual diagram for showing a transport machine for arable land according to an embodiment of the present invention.
Figure 2 is a front perspective view for showing the conveying machine for farmland of Figure 1;
Figure 3 is a rear perspective view of the conveying machine for farmland of Figure 2;
4 is an exploded view of the conveying machine for arable land in FIG.
FIG. 5 is a partial exploded view of the guide wheel portion of FIG. 4; FIG.
Figure 6 is an operation of the farmland conveying machine of Figure 1;

Hereinafter, with reference to the accompanying drawings for a farmland transport machine and a transport system having the same according to a preferred embodiment of the present invention will be described in detail. In the present specification, the same or similar reference numerals are given to different embodiments in the same or similar configurations.

1 is a conceptual diagram illustrating a farmland conveying machine 100 and a conveying system 100 ′ having the same according to an embodiment of the present invention, and FIG. 2 is a front view illustrating the farmland conveying machine of FIG. 1. Perspective view.

The transport machine 100 located on the bottom of the arable land is formed by the frame 110 forming a basic skeleton. The frame 110 may be formed of, for example, a synthetic resin or may have a metal material such as iron (Fe), iron plating, or stainless steel (STS). Frame 110 may be formed in a trapezoidal frame (ladder type frame) by combining a low-cost steel plate or the like. As the coupling method of the frame 110, for example, welding, rivet joints, bolt coupling, etc. may be used.

The frame 110 is provided with a loading portion 111 for carrying a transport object. As shown, the space defined by the frame 110 may be the loading unit 111. The loading unit 111 is formed to load a transport object such as harvested fruits, vegetables or various equipment therein. In the loading unit 111, a railing or a sidewall may be formed at a constant height to prevent the object to fall.

Frame 110 is equipped with a wheel 120 to roll the bottom of the arable land.

The wheel 120 can be variously driven to rotate, for example, it can be provided at a low cost using a waste tire. The wheel 120 is connected to the driving unit 130 (see FIG. 3) for providing a driving force to the wheel 120. When the wheel 120 is driven to rotate, a friction force with the bottom of the arable land is generated, through which the conveying machine 100 can be moved.

An elastic member such as rubber or a spring may be further provided between the frame 110 and the wheel 120.

The wheel 120 of the conveying machine 100 includes a front wheel 121 and a rear wheel 122, the front wheel 121 and the rear wheel 122 may be formed in a pair of left and right, respectively. That is, the conveying machine has four wheels.

At the bottom of the arable land, a track 150 serving as a traveling path of the transport machine 100 is laid, and a guide wheel 140 configured to be rolled along the track 150 is mounted at a lower portion of the frame 110.

The track 150 may be formed in a single line shape at a low cost by using a member having a circular cross section, for example, a pipe 151. As shown in the drawing, the plurality of pipes 151 may be connected to easily form a bendable track 150.

In the inner surface of the pipe, one end of the first pipe 151a and the other end of the pipe 150 may be connected to the second pipe 151b by using a pipe connector 152 or the like. However, the cross section of the track is not limited to a circle, and may have various shapes such as a rectangular cross section or a groove shape.

Grooves 143 (see FIG. 3 or FIG. 4) for accommodating the track 150 may be formed on the outer circumferential surface of the guide wheel 140. The guide wheel 140 serves to guide the progress of the transport machine 100 by rolling along the track 150 while receiving the track 150.

As described above, the wheel 120 is driven by the driving unit 130, and the progress of the transport machine is guided by the track 150 and the guide wheel 140, so that the transport object can be automatically transported from the farmland.

A stop inducer 150 ′ may be located in the arable land to induce a stop of the transport machine 100. The stop conductor 150 ′ means that the object can collide with the conveying machine 100 with all objects in the farmland such as a crop box, a ladder, a person, and the like.

The conveying machine 100 may be provided with a switch (not shown) protrudingly mounted at one end of the frame 110 to be in contact with the stop inductor 150 ′ and controlling the operation of stopping the rotation of the wheel 120. .

Such a switch may be formed to be pressed in contact with the stop conductor 150 'first before the frame comes into contact with the stop conductor 150', and may be a safety device for stopping the conveying machine 100. FIG.

By placing the stop conductor 150 'at a point where the conveying machine 100 is desired to stop, the conveying machine 100 may be induced to stop at that point. Through this, it is possible to configure a transport system 100 ′ which moves between the work spaces that are separated from each other and selectively stops depending on whether the stop conductor 150 ′ is disposed in a certain work space.

Figure 3 is a rear perspective view for showing the conveying machine 100 for cultivated land of FIG.

The lower portion of the frame 110 is provided with a drive unit 130 is connected to the wheel 120 to provide a driving force. The drive unit 130 is preferably to provide a driving force to roll the wheel 120 to the front and rear, respectively. The driving unit 230 may be formed by connecting the battery 131 and the DC motor 132, for example.

The battery 131 may be used, for example, a battery having a relatively long life and easily purchased.

The battery 131 may be in a form that can be charged using an external power source. When using an alternating current such as a home power source as a power source, a converter for converting the alternating current into direct current may be provided together. Such a battery mainly provides a low voltage of about 12V, and together with a small DC motor operating at such a low voltage, the driver 130 becomes smaller.

Referring to the drawings, the guide wheel 140 is disposed one each in front and rear of the frame 110. More specifically, the guide wheel 140 may include a front guide wheel 141 and a rear guide wheel 142. The front guide wheel 141 may be disposed in front of the front wheel 121 based on the traveling direction of the frame 110, and the rear guide wheel 142 may be disposed behind the rear wheel 121. This allows the guide wheel 140 to always precede the wheel 120 regardless of whether the wheel 120 rolls forward or backward. This is to guide the forward direction of the conveying machine 100 by the guide wheel 140 rather than driving the conveying machine 100 by the wheel 120 to mitigate the departure of the conveying machine 100 on the track 150 Or to prevent.

The invention comprises a tilting mechanism of the guide wheel and a four-wheel drive mechanism of the wheel. Hereinafter, the two mechanisms will be described in more detail with reference to FIGS. 4 to 6.

FIG. 4 is an exploded view of the farmland conveying machine of FIG. 3, FIG. 5 is a partial exploded view of the guide wheel portion of FIG. 4, and FIG. 6 is an operation view of the farmland conveying machine of FIG. 1.

4 and 5, the outer circumferential surface of the guide wheel 140 is formed to have a cross section provided with a groove 143 for receiving the track 150 (see FIG. 1).

The groove 143 is formed, for example, as 'U' or 'V' to prevent the guide wheel 140 from deviating laterally on the silver track 150. The guide wheel 140 is reversibly connected to the frame 210 to be aligned in the direction of the track 150.

More specifically, the guide wheel 140 is mounted to the guide wheel support 160 to rotate about the central axis (144). Guide wheel support 160 is formed in a plate shape bent to be rotatably fastened to the support (170).

For example, the support unit 170 includes a plurality of support bars 172 and 173 which protrude from the lower portion of the frame and are connected to both ends of the support shaft 171, respectively. The plurality of support bars 172 and 173 may be disposed in parallel with each other, and ends thereof may be connected to each other by a connection bar 174. Through bars are formed in the support bars 172 and 173, and a support shaft 171 is mounted in the through holes, and the guide wheel support 160 is rotatably coupled to the support shaft 171.

In order to alleviate or prevent the departure of the guide wheel 140 and the track 150, the frame 210 may be equipped with at least one spring 180 for pressing the guide wheel 140 toward the track 150. . One end of the guide wheel support 160 is mounted with a guide wheel 140, the spring 180 is connected to the guide wheel support 160 as a tension spring. Through this, the spring 180 is made to pull the other end of the guide wheel support (160).

More specifically, the protrusion 161 protrudes from the other end of the guide wheel support 160, and the spring 180 is connected to the protrusion 161. The protrusion 161 protrudes from the surface opposite to the surface on which the guide wheel 140 is mounted in the guide wheel support 160 about the support shaft 171. The elastic force of the spring 180 pulls the protrusion 161 of the guide wheel support 160, and one end of the guide wheel support 160, like a seesaw, moves away from the frame in a direction away from the frame. Rotate around. Through this, the guide wheel 140 is to press the single track 150.

5 and 6, by the tilting mechanism of the guide wheel 140, the guide wheel pedestal 160 is tilted to both sides about the spring 180.

Specifically, the other end of the guide wheel support 160 is formed with a receiving portion 162 for receiving the support shaft 171, the receiving portion 162, the guide wheel support 160 is the spring ( An inner wall of the receiving portion 162 is movable with respect to the support shaft 171 so as to be tilted to both sides with respect to 180. In this case, the receiving portion 162 may be formed by bending the other end of the guide wheel support.

The receiving portion 162 is formed in the form of a long hole toward the front or rear of the frame. Through this, the support shaft 171 can be moved and tilted in the receiving portion 162. In this case, the inner wall of the receiving portion 162 defining the long hole may be formed in a closed loop form to limit the tilting of the guide wheel support 160.

According to the illustration, the receiving portion 162 may be disposed between the plurality of support bars 172, 173, through which the support bars 172, 173 tilt the guide wheel pedestal 160. It can act as a limiting stopper.

Specifically, the guide wheel cradle 160 may be divided into a first portion 163 and a second portion 164.

The guide wheel 140 is rotatably mounted to the first portion 163, and both sides (both edges) of the first portion 163 are parallel to each other. The second portion 164 is a portion corresponding to the receiving portion 162 and is disposed on a space defined by (or limited to) the support bars 172 and 173 and the connection bar 174.

Both sides of the second portion 164 are formed to be inclined with each other so as to be spaced apart from the plurality of support bars 172 and 173, thereby creating a space in which the guide wheel pedestal 160 can tilt. In this case, the second portion 164 may be made to gradually increase in width toward the spring support rod 181. Through this, the width of the first portion 163 on which the guide wheel 140 is mounted may be increased.

As such, as the inner wall of the receiving portion 162 is formed to be movable relative to the support shaft 171, the guide wheel pedestal 160 can be tilted.

Referring to Figure 6, part of the rotation of the guide wheel in the curve road is responsible for the rotation of the guide wheel 140, the other part is responsible for the tilting of the guide wheel support (160). Through such a structure, the rotation of the guide wheel 140 becomes more smooth, and in particular, the derailment of the guide wheel 140 can be alleviated or prevented from an uneven surface.

3, 4 and 6, by the four-wheel drive mechanism of the wheel, the conveying machine can be four-wheel drive.

According to the illustration, the front and rear wheels 121 and 122 are connected to each other by the chain connection 190 to be four-wheel drive. More specifically, the chain sprocket 191 is mounted on the shaft 123 of the wheel 120, and the front and rear wheels 121 and 122 are chained as the chain 192 is wound on the chain sprocket 191. Connected. This enables four-wheel drive even when only one of the front and rear wheels 121 and 122 is connected to the DC motor 132.

Furthermore, the conveying machine of the present invention provides four-wheel tilting along with four-wheel drive for improved stability in curve sections.

According to the illustration, the front support portion 193 for supporting the shaft 123 of the front wheel 121 and the rear support portion 194 for supporting the shaft 124 of the rear wheel 122 are each tiltable to the frame. Is fitted. For example, the front support 193 and the rear support 194 may be mounted to the frame by bearings 197, respectively.

In addition, the front support unit 193 and the rear support unit 194 may be equipped with a differential gear unit 195 respectively connected to the left and right wheels so that the left and right wheels are rotated differentially when the track is bent. The differential gear portion 195 is composed of differential gears connected to the shafts 123 and 124 of the wheel. The differential gear unit 195 is mainly used for driving the rear axle of a vehicle, and may be generally configured as a ring gear, a differential pinion gear, a differential side gear, and the like, which receive driving force.

In curves, varying the number of revolutions of the left and right wheels can cause a change in the number of revolutions of the front and rear wheels. In this case, slip occurs, and the present invention includes a connection part 196 for preventing the slip.

The connection portion 196 connects the front and rear supports with each other such that the front and rear supports are tilted together. In more detail, a through hole is formed in the connection part 196, and a screw passing through the through hole may be fastened to the casing of the shaft. As the connecting portion 196 connects the casing of the shaft 123 of the front wheel 121 and the casing of the shaft 124 of the rear wheel 122 with each other, the front and rear wheels are tilted by the same angle. In this case, stoppers (not shown) may be formed at portions of the frame facing both sides of the connecting portion 196 in order to limit the amount of tilting of the front and rear wheels.

According to the four-wheel tilt described above, as shown in FIG. 6, the front and rear wheels not only exhibit steering functions, but also rotate to the same degree, so that slip can be alleviated. This allows the front and rear wheels to turn together, allowing stable operation even on uneven ground surfaces.

The farmland transport machine as described above is not limited to the configuration and method of the embodiments related to the farmland transport machine described above, it is also applicable to agricultural or industrial transport machinery. In addition, the above embodiments may be configured by selectively combining all or some of the embodiments so that various modifications may be made.

Claims (10)

A frame in which a loading part is formed to carry a transport object on an upper portion thereof;
A wheel mounted to the frame, the wheel being formed to roll the bottom of the tillage so as to be movable in the tillage;
A guide wheel configured to be rolled along a single track installed at the bottom of the arable land;
A guide wheel support rotatably connected to a support shaft and having one end of the guide wheel mounted thereon; And
And a spring that pulls the other end of the guide wheel support such that the guide wheel presses the single track as the guide wheel support rotates about the support shaft.
The wheel includes a front wheel and a rear wheel, the front support for supporting the shaft of the front wheel, and the rear support for supporting the shaft of the rear wheel, respectively, is tiltably mounted to the frame,
And the front and rear supports are connected to each other by a connecting portion such that the front and rear supports are tilted together. The method of claim 1,
The other end of the guide wheel support is formed with a receiving portion for receiving the support shaft, the receiving portion in such a form that the inner wall of the receiving portion is movable relative to the support shaft such that the guide wheel support is tilted to both sides around the spring. Transport machinery for arable land, characterized in that made. The method of claim 2,
It further comprises a plurality of support bars protruding from the lower portion of the frame are connected to both ends of the support shaft, respectively,
The receiving portion is a farmland transport machine, characterized in that disposed between the plurality of support bars. The method of claim 3,
The guide wheel support
A first portion to which the guide wheel is rotatably mounted and both sides of which are parallel; And
And a second part corresponding to the accommodation part, the second part being inclined to each other so as to be spaced apart from the plurality of support bars. The method of claim 2,
The receiving portion is a farmland conveying machine, characterized in that made in the form of a long slot toward the front or rear of the frame. The method of claim 5,
The inner wall of the receiving portion defining the long hole is a farmland conveying machine, characterized in that formed in a closed loop form to limit the tilting of the guide wheel support. The method of claim 1,
The frame is equipped with a drive unit, at least one of the front and rear wheels is formed to receive a driving force from the drive unit,
The front and rear wheels to be driven four-wheel drive the farmland, characterized in that connected to each other by a chain connection. delete The method of claim 1,
The front and rear wheels are each formed in a pair of left and right,
And the differential gear parts connected to the left and right sides so that the left and right sides are differentially rotated to the front and rear support parts when the track is bent. A single track installed at the bottom of the arable land; And
A cropland conveying system comprising a conveying machine for arable land, which is arranged to move along the trajectory, and according to any one of claims 1 to 7.

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