KR200374276Y1 - A weeder - Google Patents

Abstract

The mowing machine is capable of mowing the hills, such as hilly hills, by giving a tilt angle as well as providing smooth weeding by increasing the horizontal moving range of the mower. Mower according to the present invention is a connection part having a three-point hinge to be fixed to the rear of agricultural machinery such as tractors and rotary; A main body portion formed of a cylindrical knife shaft to which a plurality of blades are attached, and a cover plate rotatably fixing both ends of the knife shaft while surrounding the knife shaft from above; A link portion having a link stage rotatably mounted on one side leg of the connecting portion and a central portion on an upper surface of the cover plate to support the main body portion; Parallel holding means for keeping the agricultural machinery and the main body part in parallel with each other; A horizontal moving cylinder having a double-acting cylinder rotatably coupled to an upper surface of the other end of the link and an end of the parallel retaining link; An angle adjusting cylinder having one end of the double acting cylinder pivotally coupled to an end of the cover plate on the upper surface of the cover plate, and the other end of the double acting cylinder pivotally coupled with a link section at the center of the cover plate; A gear box disposed on the upper surface of one side of the cover plate, a universal joint connected to the drive shaft of the agricultural machine to transmit power to the gear box, and a power to which one side of the gear box and a chain for transmitting power to one end of the knife shaft are fastened. Provided is a mower including a delivery unit.

Description

Mowers {A weeder}

The present invention relates to a mower, and more particularly, to a weeder capable of mowing weeds, such as under fruit trees or sloped hills, while towing by agricultural machinery such as tractors and rotary machines.

In general, mowers used for agricultural or orchard horticulture, such as tractors, which carry out mowing while moving by using an external power source such as a tractor, are mounted on the rear of farm machinery such as tractors and rotary machines. Since the rear side of the agricultural machine is fixed, it is difficult to cut the grass to be located in the areas left and right outside the rear side of the farming machine, in particular, the farming machine is difficult to operate as the farming machine is operated, and there is a problem inevitably relying on manual work.

In addition, in order to solve the above-mentioned problem to some extent, a form has been proposed to allow horizontal movement of about 20 to 30 cm to either side of the mower, but the situation cannot be completely solved.

The present invention has been made to solve the above problems, an object of the present invention is to provide a mower that can smoothly mowing the horizontal movement range of the mower.

Still another object of the present invention is to provide a weeding machine that can mow hillsides and the like by giving an inclination angle in addition to the horizontal movement of the mower.

1 is a combined perspective view showing a mower according to the present invention,

2 is a perspective view showing in detail the link unit shown in FIG.

3 is an exploded perspective view showing in detail the main body and power transmission shown in FIG.

4a and 4b are views showing another embodiment of the parallel holding means shown in FIG.

5 is a plan view showing a state in which the main body portion of the mower according to the present invention is moved horizontally, and

6 is a view showing a state in which the main body portion of the mower according to the present invention is rotated.

<Description of symbols for main parts of the drawings

100: mower 110: connection portion

112: three-point hinge 120: main body

122: cover plate 124: knife axis

126: bushing 128: blade

130: rotating roller 140: link portion

148: link stage 150: parallel maintenance link stage

152a, 152b: 1st and 2nd parallel holding cylinder 154: 3rd parallel holding cylinder

160: horizontal movement cylinder 170: angle adjustment cylinder

172 link clause 174 body

176a, 176b: 1st and 2nd bending table 178: fixing pin

180: power transmission unit 182: gearbox

184: universal joints 186a, 186b: first and second sprockets

188: Chain

In order to achieve the above object, the present invention,

A connection part having a three-point hinge to be fixed to a rear side of a farm machine such as a tractor and a rotary machine;

Cylindrical knife shaft to which a plurality of blades are attached, a cover plate for rotatably fixing both ends of the knife shaft while wrapping the knife shaft from the top, and a rotary roller which is rotatably mounted on the cover plate and arranged parallel to the knife shaft at the rear of the knife shaft. Body portion consisting of;

A link portion having a link stage rotatably mounted on one side leg of the connecting portion and a central portion on an upper surface of the cover plate to support the main body portion;

Parallel holding means for keeping the agricultural machinery and the main body part in parallel with each other;

A horizontal moving cylinder having a double-acting cylinder rotatably coupled to an upper surface of the other end of the link and an end of the parallel retaining link;

An angle adjusting cylinder having one end of the double acting cylinder pivotally coupled to an end of the cover plate on the upper surface of the cover plate, and the other end of the double acting cylinder pivotally coupled with a link section at the center of the cover plate;

A gear box disposed on the upper surface of one side of the cover plate, a universal joint connected to the drive shaft of the agricultural machine to transmit power to the gear box, and a power to which one side of the gear box and a chain for transmitting power to one end of the knife shaft are fastened. Provided is a mower including a delivery unit.

In addition, on the other front side of the cover plate is formed a pressing plate protruding toward the front side, the pressing plate is connected to the operation switch for operating the horizontal movement cylinder, when the pressing plate is touched a safety device that can operate the operation switch to return the main body quickly More included.

And it is preferable that the rotary roller is mounted below the knife shaft so that the blades attached to the knife shaft are spaced at a predetermined interval from the ground.

Here, half-moon bushings are mounted so as to overlap each other in a circular shape at the portion where the knife shaft is fitted to the cover plate.

On the other hand, one side of the connecting portion is formed with a first link hinge protruding toward the main body portion side, a second link hinge protruding to the upper side is formed in the center on the upper surface of the cover plate, the first coupled to the second link hinge in the transverse direction At one end of the two hinge shafts, a third link hinge protruding toward the connecting portion is pivotally mounted, and a link stage is coupled to the first link hinge and the third link hinge.

At this time, a buffer spring for buffering the link stage is disposed between one end and the other end of the link stage and the first link hinge and the third link hinge.

The parallel holding means is a parallel holding link stage is coupled on the upper surface of the first link hinge and the third link hinge.

Alternatively, the parallel holding means may include a first parallel holding cylinder rotatably coupled at both ends to one side leg of the connecting portion and the center of the link table, and a second parallel holding cylinder at the center of the main body and the link table opposite to the first parallel holding cylinder. It may be that both ends are rotatably coupled to each other.

Alternatively, the parallel retaining means may be pivotally coupled to the central portion of the bidirectional cylinder in the center of the link table, and both ends of the bidirectional cylinder may be pivotally coupled to one side leg and the main body portion of the connecting portion, respectively.

The link section has a body that is pivotally coupled to the second hinge axis, and has a first bend and a second bend that are integrally formed on both sides of the body and extend in opposite directions and are then collected toward the upper center. The other ends of the angle adjustment cylinders are pivotally coupled to the ends of the first bend and the second bend.

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

1 is a perspective view showing a coupling mower according to the present invention, Figure 2 is a perspective view showing in detail the link portion shown in Figure 1, and Figure 3 is a perspective view showing in detail the main body portion and the power transmission portion shown in FIG. .

The mower according to the present invention, as shown in FIG. 1, connects the connection part 110, the main body part 120, the link part 140, the horizontal moving cylinder 160, the angle adjusting cylinder 170, and the power transmission part 180. Include.

The connection part 110 is for fixing the mower 100 according to the present invention to the rear of a farm machine (not shown), such as a tractor and a rotary machine, and typically has a three-point hinge 112. The connecting portion 110 is made of a square steel pipe, and has an inverted "U" shape or an inverted triangle shape. Therefore, the three-point hinge 112 is formed one at the upper center and one at both ends. The main body 120 is coupled to the connection part 110 formed as described above.

The main body 120 includes a horizontal knife shaft 124 and a cover plate 122 covering the knife shaft 124 from the upper side as shown in FIG. 3, and the knife shaft 124 and the rear of the knife shaft 124. The rotating rollers 130 which are spaced at predetermined intervals and coupled in parallel are mounted together. At this time, both ends of the cylindrical knife shaft 124 is rotatably mounted on both sides of the cover plate 122, the rotation of the knife shaft 124 smoothly between both sides of the cover plate 122 and the knife shaft 124. The half moon bushings 126 are coupled in pairs. In addition, a plurality of blades 128 are coupled to the cylindrical blade shaft 124. The body portion 120 formed as described above is coupled to the connection portion 110 by the link portion 140.

As shown in FIGS. 2 and 3, the link unit 140 is pivotally coupled to one side leg portion of the connecting portion 110 and a central portion on the upper surface of the cover plate 122 of the main body portion 120. The link unit 140 is first integrated with a first link hinge 142 which is integrally formed while extending rearward to one side leg portion of the connection unit 110 and an upper side in the center on the upper surface of the cover plate 122. The second link hinge 144 is formed in the form, and the third link hinge 146 extending toward the first link hinge 142 in front of the second link hinge 144 is integrally formed. At this time, the third link hinge 146 is integrally fixed to the other end of the second hinge shaft 144a in a state in which the second hinge shaft 144a is mounted in the horizontal direction in the second link hinge 144. The link stage 148 is pivotally coupled between the first link hinge 142 and the third link hinge 146. That is, both ends of the link stage 148 are fitted to the first link hinge 142 and the third link hinge 146, and the first hinge shaft 142a and the third hinge shaft 146a are fitted in the longitudinal direction to be coupled to each other. . Here, the link stage 148 should be designed robustly with the angle bar for supporting the main body portion 120 of the rear, between the first link hinge 142 and the first hinge shaft 142a and the third link hinge A buffer spring (not shown) for elasticity of the link stage 148 is disposed between the 146 and the third hinge shaft 146a.

Here, since only the link stage 148 is difficult to maintain the rear main body 120 in parallel with the agricultural machine, the parallel holding means was further added. The parallel retaining means has a parallel retaining linkage 148 on both top surfaces of the first linking hinge 142 and the third linking hinge 146, the parallel retaining linkages 148 being rotatably coupled at both ends thereof.

On the other hand, Figure 4a is a view showing another embodiment of the parallel holding means. Referring to FIG. 4A, parallel holding means according to another embodiment includes a first parallel holding cylinder 152a and a third link hinge connected to a center of the link table 148 in one direction of the first link hinge 142. And a second parallel holding cylinder 152b which is connected to the center of the link stage 148 in the other direction of 146.

4B is a view showing another embodiment of the parallel holding means. Referring to FIG. 4B, the parallel holding means according to another embodiment attaches a third parallel holding cylinder 154, which is a bidirectional cylinder, to a central portion of the link stage 148, and has one end thereof on one side of the first link hinge 142. The other end is connected to the other side of the third link hinge 146.

The horizontal movement cylinder 160 for horizontally moving the main body 120 to the left and right is coupled to the side surface of the link unit 140 formed as described above. The horizontal movable cylinder 160 is a double-acting cylinder that is contracted and relaxed by hydraulic pressure, one end of which is pivotally coupled on the upper surface of the link stage 148 adjacent to the third link hinge 146, and the other end of the horizontal link cylinder 160. It is pivotally coupled to a parallel retaining linkage 148 adjacent to 142.

In addition, the angle adjustment cylinder 170 is coupled to the second link hinge 144. Angle adjusting cylinder 170 is a double-acting cylinder similar to the horizontal moving cylinder 160, one end is pivotally coupled to the upper portion on the other side of the cover plate 122, the other end is fitted to the second hinge shaft (144a) Possibly combined. At this time, between the other end of the angle adjustment cylinder 170 and the second hinge shaft (144a) is coupled to the linkage 172 for turning the body portion 120 as the angle adjustment cylinder 170 is relaxed. . The link section 172 includes a body 174 fitted to the second hinge shaft 144a and a first bent table 176a and a second end extending in opposite directions at both ends of the body 174 and collected in an upper center portion. The bending table 176b is integrally formed. In this case, a fixing pin 178 is inserted into the body 174 and the second hinge shaft 144a to couple the body 174 and the second hinge shaft 144a to each other. And the other end of the angle adjustment cylinder 170 is rotatably coupled to the end of the first bending table 176a and the second bending table 176b.

On the other hand, power is required to rotate the knife shaft 124 of the body portion 120. In the present invention, the power is used by farm machinery. The power transmission unit 180 includes a gearbox 182, a universal joint 184, a first sprocket 186a, a second sprocket 186b, and a chain 188. First, the gearbox 182 is disposed at one top of one side of the main body 120, that is, one top of the cover plate 122. The gearbox 182 is powered from the farm machinery in front of, at this time, a universal joint 184 is used. Universal joint 184 is one end is connected to the drive shaft of the agricultural machinery, the other end is connected to the front of the gear box 182. In addition, the first sprocket 186a is mounted on a shaft that is rotated on one side of the gearbox 182. A second sprocket 186b is mounted at one end of the knife shaft 124 in parallel with the first sprocket 186a so that the chain 188 is wound around the first sprocket 186a and the second sprocket 186b.

In addition, a safety device (not shown) is formed on the front portion of the cover plate 122. The safety device is a device that can detect and return when the main body 120 encounters an obstacle in advance and has a pressing plate (not shown) protruding forward in the front portion of the cover plate 122, and the pressing plate is a horizontal moving cylinder. An operation switch preferentially selects a signal input by the pressing plate in connection with an operation switch (not shown) of 160 to quickly avoid obstacles.

Hereinafter, the state of use of the mower 100 formed as described above will be briefly described.

5 is a plan view illustrating a state in which the body portion of the mower according to the present invention is horizontally moved, and FIG. 6 is a view illustrating a state in which the body portion of the mower according to the present invention is rotated.

First, referring to the operation method and operation state for horizontal movement of the mower 100 according to the present invention, agricultural machinery such as tractors and rotary has a function that can basically lift the three-point hinge 112 upwards. And a hydraulic line for supplying various hydraulic pressure is also provided. Therefore, the three-point hinge 112 of the connecting portion 110 is fixed to the rear of the agricultural machine, and the hydraulic line is connected to the horizontal moving cylinder 160 and the angle control cylinder 170 which is a double-acting cylinder. The horizontal movement is operated by the horizontal movement cylinder 160 as shown in FIG. That is, when the hydraulic pressure is put into the horizontal moving cylinder 160, the double-acting cylinder is relaxed. The relaxed double-acting cylinder has a structure in which the link stage 148 is forced to swing between one end of the parallel maintenance link stage 148 and the other end of the link stage 148. Here, when the main body portion 120 is simply rotated by the horizontal movable cylinder 160, the parallel maintenance linkage 148 becomes difficult to maintain parallel with the agricultural machinery. Therefore, the parallel maintaining linkage 148 is balanced with the linkage 148 to maintain the body portion 120 in parallel with the agricultural machinery.

As such, the main body 120 is horizontally moved to the other side of the farm machinery, so that weeds such as under fruit trees that the farm machinery cannot pass can be easily mowed.

On the other hand, when the hydraulic pressure is supplied to the angle adjustment cylinder 170, the angle adjustment cylinder 170 is relaxed. The link section 172 is inclined in one direction by the relaxed angle adjusting cylinder 170, and the first hinge shaft 142a is coupled to the body 174 and the fixing pin 178 by the inclined link section 172. ) Is rotated so that the entire body 120 is inclined. Thus, the inclined body portion 120 is placed on the slope, such as weeding can be worked.

In addition, the rotational force of the knife shaft 124 is applied by the drive shaft of the agricultural machinery is connected by the universal joint 184 and is supplied to the gear box 182 again. Here, the gearbox 182 rotates the knife shaft 124 by transmitting to the knife shaft 124 connected by the chain 188 while changing the rotational power coming from the front side. In addition, the rotary roller 130 located behind the knife shaft 124 is simply freely rotated to be in close contact with the bottom surface to support the main body 120 and to adjust the height of the main body 120 according to the shape of the bottom surface. do.

On the other hand, both ends of the knife shaft 124 is mounted with a half-moon bushing 126, conventionally such a bushing has a disc shape. However, this bushing has a problem in that weeds that are not cut off by the knife shaft 124 are pushed in and are caught between the bushing and the knife shaft 124 or sometimes become overloaded by the inside of the bushing, thereby damaging the machine. . Therefore, in the present invention, the bushing 126 is manufactured in a half moon shape to cut the weeds driven through the knife shaft 124 between the overlapping bushings 126 to prevent the weeds from being pinched or pushed further in.

As described above, the present invention, as well as being moved to the left and right by the horizontal moving cylinder, the movement range is much wider than the conventional, there is an advantage that can work weeding to the place where the mower does not reach, such as under fruit trees.

In addition, the present invention has the advantage that the main body portion for the weeding operation is pivoted by the angle adjustment cylinder can also perform the weeding operation, such as hill slope.

In addition, there is an advantage that can be cut in the bushing coming in along the knife axis by mounting a half-moon bushing on both ends of the knife axis for performing the weeding operation.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art will be able to variously modify and change the present invention without departing from the spirit and scope of the present invention described in the utility model registration claims. It will be appreciated.

Claims (10)

A connection part having a three-point hinge to be fixed to a rear side of a farm machine such as a tractor and a rotary machine; A cylindrical knife shaft to which a plurality of blades are attached, a cover plate for rotatably fixing both ends of the knife shaft while surrounding the knife shaft, and being rotatably mounted to the cover plate while being parallel to the knife shaft at the rear of the knife shaft. A main body consisting of a rotating roller disposed to be formed; A link portion having a link stage rotatably mounted on one side leg of the connection portion and a central portion on an upper surface of the cover plate to support the main body portion; Parallel holding means for maintaining the farm machinery and the main body part in parallel with each other; A horizontal moving cylinder in which a double-acting cylinder is pivotally coupled to an upper surface of the other end of the link unit and an end of the parallel retaining link unit; One end of the double-acting cylinder is pivotally coupled to the end of the cover plate on the upper surface of the cover plate, the other end of the double-acting cylinder is pivotally coupled to the central portion of the cover plate with a link clause Regulating cylinder; And A gear box disposed on an upper surface of one side of the cover plate, a universal joint connected to the drive shaft of the agricultural machine to transfer power to the gear box, and for transmitting power to one side of the gear box and one end of the knife shaft Mowers characterized in that it comprises a power transmission to which the chain is fastened. According to claim 1, wherein the other side of the cover plate is formed with a pressing plate protruding toward the front side, the pressing plate is connected to the operation switch for operating the horizontal movable cylinder, when the pressing plate is touched the operation switch operates the horizontal A mower, characterized in that it further comprises a safety device capable of quickly returning the moving cylinder (160). The mower according to claim 1, wherein the rotary roller is mounted below the knife shaft so that the blades attached to the knife shaft are spaced apart from the ground at a predetermined interval. 2. The mower according to claim 1, wherein half-moon bushings are mounted to be circularly overlapped with each other at the portion where the knife shaft is fitted to the cover plate. According to claim 1, One side of the connecting portion is formed with a first link hinge protruding toward the body portion side, a second link hinge protruding to the upper side is formed in the center on the upper surface of the cover plate, the second link One end of the second hinge shaft coupled to the hinge in the transverse direction is rotatably mounted to the third link hinge protruding toward the connecting portion, the link stage is coupled to the first link hinge and the third link hinge. Mowers. 6. The weeder according to claim 5, wherein a buffer spring for buffering the link stage is disposed between one end and the other end of the link stage and the first link hinge and the third link hinge. 6. The mower according to claim 1 or 5, wherein the parallel holding means is coupled with parallel holding link bars on upper surfaces of the first link hinge and the third link hinge. According to claim 1 and 5, wherein the parallel holding means is the opposite side of the first parallel holding cylinder, while both ends of the first parallel holding cylinder is rotatably coupled to one side of the connecting portion and the center of the link. And a second parallel holding cylinder at both ends of the main body and at the center of the link table so as to be pivotable at both ends thereof. 6. The parallel holding means according to claim 1, wherein the parallel holding means is pivotally coupled to a central portion of the bidirectional cylinder, and both ends of the bidirectional cylinder are pivotable on one leg of the connecting portion and the main body, respectively. Mowers, characterized in that coupled to. According to claim 1 and 5, wherein the linkage section is formed integrally on both sides of the body rotatably coupled to the second hinge axis, extending in opposite directions to each other and gathered back to the upper side center The paper weaving machine has a first bending table and a second bending table, and the other end of the angle adjusting cylinder is pivotally coupled to the end portions of the first bending table and the second bending table.