KR20100019850A - A harrow for tractor - Google Patents

Abstract

The present invention is a mounting bracket 190 is installed on one side of the upper rotor rotor (B), a pair of connecting frame 110 is mounted to be able to rotate in the vertical direction in front of the mounting bracket 190 and the Coupled to the front of the connecting frame 110 to be rotated in the vertical direction, but in the center is installed between the harrow plate 160 and the bracket 170 and the rotor 170 and the rotor (B) In the tractor harrow consisting of a hydraulic cylinder 180 for rotating the harrow plate 160 in the vertical direction, the support frame 111 is installed in a horizontal direction to connect the connecting frame 110 to each other, and the mounting bracket A support bracket having a stopper 191 installed to connect the center of the support frame 111 and 190 to each other, and a first hinge shaft 121 formed at an upper portion thereof and a second hinge shaft 122 formed at a lower portion thereof. 120 is installed in front of the connection frame 110 And a connecting bracket 130 having a third hinge shaft 131 at an upper portion and a fourth hinge shaft 132 formed at a lower portion thereof on one side of the harrow plate 160, and the first hinge shaft ( The upper support 140 is coupled so as to be rotated between the 121 and the third hinge shaft 131, and the lower portion is pivotable between the second hinge shaft 122 and the fourth hinge shaft 132. Couple the support 150, the lower support 150 is separated on both sides with respect to the center so that the first support 150a on one side is mounted to rotate on the second hinge shaft 122 and the other side The second support 150b is rotatably mounted to the fourth hinge shaft 132, and the fifth support shaft 151 may be rotated at the front end of the first support member 150a and the second support member 150b which are in contact with each other. It is mounted so that the first support (150a) and the second support (150b) can be folded up and down about the fifth hinge axis (151) That for providing a rack conical harrow, the invention is folded to induce to facilitate the harrow plate to the lower direction has an effect to maximize the flatness of the work paddy field. In addition, the present invention has the effect of preventing the cause of the safety accident by preventing the harrow plate is rotated in a downward direction more than a predetermined angle. In particular, the present invention is a very useful invention that can increase the range of use as well as use efficiency because it can be easily applied without modifying and modifying the existing tractor harrow as a whole.

Description

Tractor harrows {A harrow for tractor}

The present invention relates to a tractor harrow, and more particularly, to prevent the safety accident that occurs when the harrow plate is lowered by a certain angle in advance as well as to induce the harrow plate to bend in the downward direction to maximize the flattening of Munon It relates to a harrow for a tractor that allows.

In general, the harrow is a type of farming machine installed at the rear of the rotorbator and used for flattening Munnon.

In other words, the growth conditions and yield are determined according to the nutritional status of the soil (soil). The job of choosing the right thing to do is preceded.

Since the flattening of Munnon is more urgently needed than ever before, various types of efforts have been made to improve the harrow. As a result of these efforts, various structures of harrow have recently been widely used in rural areas.

Therefore, in the related art, a plurality of connecting links hinged to the upper and lower ends of the rotator detachably attached to the rear of a conventional tractor, a harrow plate rotatably coupled to the rear end of the connecting link, and connected to the harrow plate An elevating cylinder installed to elevate the harrow plate, a first bracket protruding from the harrow plate and hinged to the elevating cylinder, a plurality of second brackets hinged to the harrow plate and the connecting link, and the second Korean Patent No. 0323996 "Tractor Harrow" is provided with an upper stopper that is provided on the bracket and is provided with an upper stopper in contact with the connection link as the lifting cylinder contracts.

However, the conventional "tractor harrow" has a structure in which the harrow plate is lifted while the upper stopper rotated by the reversing operation of the lifting cylinder touches the upper part of the linking link, which is the weight of the upper harrow plate only. Since it must be rotated in contact with the connecting link in the support state, this results in a severe closure which causes the upper stopper to bend or deform as the physical load and load are concentrated.

In addition, the conventional "tractor harrow" is not provided with a means for preventing the harrow plate is rotated in a downward direction by a predetermined angle or more, because of this, the harrow plate is stuck in Munnon or hit the ground, a safety accident occurs Got

In particular, the conventional "tractor harrow" has a problem that the operation efficiency is limited because the stone or rice straw is easily introduced between the connecting link and the upper stopper in the flattening operation of Munon as interference occurs during the rotation of the harrow plate.

Therefore, the present invention has been made to solve the above conventional problems,

An object of the present invention is to provide a harrow for a tractor to be able to bend smoothly in the downward direction in a stable support state of the harrow plate.

Another object of the present invention is to provide a harrow for a tractor to prevent the harrow plate is rotated in a downward direction by a predetermined angle or more.

The present invention is a mounting bracket 190 is installed on one side of the upper rotor rotor (B), a pair of connecting frame 110 is mounted to be able to rotate in the vertical direction in front of the mounting bracket 190 and the Coupled to the front of the connecting frame 110 to be rotated in the vertical direction, but in the center is installed between the harrow plate 160 and the bracket 170 and the rotor 170 and the rotor (B) In the tractor harrow consisting of a hydraulic cylinder 180 for rotating the harrow plate 160 in the vertical direction,

A support frame 111 installed in a horizontal direction to connect the connection frame 110 to each other, a stopper 191 installed to connect the center of the mounting bracket 190 and the support frame 111 to each other, and an upper portion thereof; The support bracket 120 having a first hinge shaft 121 and a second hinge shaft 122 is formed in the front of the connecting frame 110 in the lower portion, and the third hinge shaft 131 in the upper portion. ) And a connecting bracket 130 having a fourth hinge shaft 132 formed at a lower side thereof on one side of the harrow plate 160, and the first hinge shaft 121 and the third hinge shaft 131. The upper support 140 is coupled to rotate between the second support shaft, and the lower support 150 to be coupled between the second hinge shaft 122 and the fourth hinge shaft 132, but the lower The support 150 is separated on both sides with respect to the center so that the first support 150a on one side can rotate on the second hinge shaft 122. The second support 150b of the other side is mounted to be rotatable to the fourth hinge shaft 132 and the fifth hinge shaft is disposed at the front end of the first support 150a and the second support 150b which are in contact with each other. The first support 150a and the second support 150b may be foldable in a vertical direction with respect to the fifth hinge shaft 151 by mounting the 151 to rotate.

The present invention has the effect of maximizing the flattening of the Munnon by inducing the harrow plate to bend smoothly in the downward direction.

In addition, the present invention has the effect of preventing the cause of the safety accident by preventing the harrow plate is rotated in a downward direction more than a predetermined angle.

In particular, the present invention is a very useful invention that can increase the range of use as well as use efficiency because it can be easily applied without modifying and modifying the existing tractor harrow as a whole.

Referring to the accompanying drawings, a technical configuration for achieving the object of the present invention as described above is as follows.

1 is a perspective view showing a combined first embodiment of the tractor harrow of the present invention, Figure 2 is a side view for showing a first embodiment of the tractor harrow of the present invention, Figure 3 is a cross-sectional view taken along line AA of FIG. 4 is a cross-sectional view showing a second embodiment of the tractor harrow of the present invention, Figure 5 is a cross-sectional view showing a third embodiment of the tractor harrow of the present invention, Figure 6 is a tractor harrow of the present invention The cross section for showing the 4th Example of this is shown.

Referring to Figure 1, the support frame 111 is connected to each other in a horizontal direction by a pair of the connection frame 110 is supported stably without shaking.

In the present invention, the support bracket 120 is formed in front of the connection frame 110 to support the upper support 140 and one side of the first support 150a to be rotated in the vertical direction.

On the other hand, as shown in Figure 4 in the front middle of the support bracket 120, the stopper 123 and the support bracket for preventing contact with the lower portion of the upper support 140 is no longer rotated in the downward direction A stopper 124 may be formed at the front upper portion of the 120 to prevent contact with an upper portion of the upper support 140 and further prevent upward rotation.

Referring to FIG. 3, the connecting bracket 130 is rotatably supported on the other side of the upper support 140 and the second support 150b in a state of being coupled to one side of the harrow plate 160. Done.

At this time, the connecting bracket 130 is coupled to one side of the harrow plate 160, as shown in Figure 6, the upper has a long hole 134 and the fourth hinge shaft 132 is coupled through The second bracket (130b) to form a through-hole 136 and the other side and the second support (150b) of the upper support 140 so as to be able to rotate in the vertical direction, but in front of the coupling hole (133) It is provided with a coupling pin 135 may be made of a first bracket (130a) coupled to the long hole 134, which is the angle of the harrow plate 160 by the length of the long hole 134 in the vertical direction To adjust.

In addition, bearing members 121a such as bushes, bearings, link balls, etc. may be inserted into both sides of the upper support 140 to allow the first hinge shaft 121 and the third hinge shaft 131 to penetrate and rotate smoothly. And 131a may be formed respectively.

The lower support 150 is normally maintained in a horizontal state, while in the process of flattening Munon, when the harrow plate 160 is in contact with the Munon and can no longer be lowered and a constant load occurs, the fifth hinge shaft The first support member 150a and the second support member 150b are folded in the upper or lower direction with the center of the 151 as a guide so that the harrow plate 160 can be naturally bent in the lower direction to smooth the flattening of Munon. You can proceed.

In this case, a bearing member 122a such as a bush, a bearing, a link ball, etc. is formed between the first support 150a and the second hinge shaft 122 so as to smoothly rotate the second support 150b. ) And the fourth hinge shaft 132 may form a bearing member 132a such as a bush, a bearing, a link ball, and the like to smoothly rotate.

In particular, a stopper 151 may be formed at a lower portion of the first support 150a to contact the lower portion of the second support 150b to prevent the second support 150b from being folded upward. .

In this case, the stopper 151 may be formed on the upper part of the first support member 150a instead of the lower part of the first support member 150a to prevent the second support member 150b from being folded downward. .

In the present invention, the harrow plate 160 is a secondary harrow plate 162 folded on the basis of the main harrow plate 161 and the hinge shaft 161a formed on both sides of the main harrow plate 161. Is done.

At this time, since the folding method and the operating means of the auxiliary harrow plate 162 is well known in the art, a detailed description thereof will be omitted.

In addition, the mounting bracket 190 is installed to rotate the connection frame 110 and the hydraulic cylinder 180 in a state installed on one side of the upper rotor (B).

On the other hand, the stopper 191 connects the center of the mounting bracket 190 and the support frame 111 to each other by the forward operation of the hydraulic cylinder 180, the harrow plate 160 and the connection frame 110 ) Is fixed so that the stopper 191 does not lower the support frame 111 any more even if rotated in the downward direction can prevent the safety accident that the harrow plate 160 is stuck in Munnon or hit the ground in advance. Will be.

At this time, one side of the stopper 191 is installed to be rotated in the center of the mounting bracket 190 and the other side forms a helix to penetrate the center of the support frame 111 and then using a fastener 191a It is preferable to be installed to be screwed together.

Therefore, the operator rotates the fastener 191a to adjust the distance between the support frame 111 and the stopper 191, whereby the harrow plate 160 is lowered and the angle and position that can be contacted with Munnon Will be adjusted.

When described in more detail by the accompanying drawings the operating state of the present invention having the configuration as described above are as follows.

7 to 10 is a flow chart for showing the operating state of the tractor harrow for the present invention, Figure 11 shows a reference state of use of the tractor harrow for the present invention.

Referring to FIG. 7, normally, the harrow plate 160 is lifted by the reverse operation of the hydraulic cylinder 180. In this case, the upper support 140 and the lower support 150 are the harrow plate 160. It keeps rotating in the downward direction by its own weight.

Referring to FIG. 8, the harrow plate 160 is lowered and the upper support 140 and the lower support 150 rotate in contact with Munon as the hydraulic cylinder 180 moves forward.

In this case, the stopper 191 is supported so that the harrow plate 160 can be lowered to a position where the flat work can be carried out without being deeply stuck in Munnon.

Referring to FIG. 9, when the hydraulic cylinder 180 moves forward in a state in which the harrow plate 160 is in contact with Munon, a load is no longer lowered, and a load is generated. In this case, the first support 150a and the first support 150a are formed. While the second support 150b is folded about the fifth hinge shaft 151, the harrow plate 160 is bent downward so that the flattening of the munon is performed.

Referring to FIG. 10, when the flattening operation of Munon is completed, the harrow plate 160 is lifted by the backward operation of the hydraulic cylinder 180. At this time, the upper support 140 is rotated in the upper direction and the first The first support 150a and the second support 150b naturally rise about the fifth hinge shaft 151 and ascend in a horizontal state.

Accordingly, the present invention can smoothly proceed the flattening of Munon by inducing the harrow plate 160 to be bent downward as shown in FIG.

As described above, the embodiment of the present invention has been described in detail, but the scope of the present invention is not limited thereto, and the scope of the present invention is included to the extent that the present invention is substantially equivalent to the embodiment of the present invention. Of course it will.

1-a perspective view of the combination for showing a first embodiment of the present invention for a tractor harrow.

Figure 2-side view for showing a first embodiment of the harrow for the present invention tractor.

3-A sectional view along the line A-A of FIG.

4-a cross-sectional view for illustrating a second embodiment of the present invention for a tractor harrow.

5-a cross-sectional view showing a third embodiment of the present invention for a tractor harrow.

6-a cross-sectional view showing a fourth embodiment of the present invention for a tractor harrow.

7 to 10-a flow chart for showing the operating state of the harrow for the present invention tractor.

Figure 11-Reference state of use of the harrow for the present invention tractor.

Explanation of symbols on the main parts of the drawings

100: tractor harrow of the present invention

110: connecting frame 111: support frame

120: support bracket

121: first hinge shaft 121a: bearing member

122: second hinge shaft 122b: bearing member

123,124: stopper

130: connection bracket

130a: first bracket 130b: second bracket

131: third hinge shaft 131a: bearing member

132: fourth hinge shaft 132a: bearing member

133: coupling hole 134: long hole

135: coupling pin 136: through hole

140: upper support

150: lower support 150a: first support

150b: second support 151: fifth hinge axis

152: stopper

160: harrow board 161: main harrow board

161a: hinge shaft 162: auxiliary harrow board

170: bracket

180: hydraulic cylinder

190: mounting bracket 191: stopper

191a: fastener

A: Tractor B: Rotorbator

Claims (9)

Mounting bracket 190 is installed on the upper side of the rotor (B), a pair of connecting frame 110 which is mounted to be rotated in the vertical direction in front of the mounting bracket 190, and the connecting frame ( It is coupled so as to rotate in the vertical direction in front of the 110, the center of the harrow plate 160 is provided with a bracket 170, the bracket 170 and the rotor is installed between the rotor (B) the harrow plate ( In the tractor harrow consisting of a hydraulic cylinder 180 for rotating the 160 in the vertical direction, A support frame 111 installed in a horizontal direction to connect the connection frame 110 to each other, a stopper 191 installed to connect the center of the mounting bracket 190 and the support frame 111 to each other, and an upper portion thereof; A support bracket 120 having a first hinge shaft 121 and a second hinge shaft 122 formed at a lower portion thereof in front of the connection frame 110, and a third hinge shaft 131 disposed at an upper portion thereof. And a connecting bracket 130 having a fourth hinge shaft 132 formed at a lower portion thereof on one side of the harrow plate 160, and having a first hinge shaft 121 and a third hinge shaft 131. The upper support 140 is coupled to be rotated therebetween, and the lower support 150 is coupled to the pivot between the second hinge shaft 122 and the fourth hinge shaft 132, but the lower support is 150 is separated into both sides with respect to the center so that the first support 150a on one side can rotate on the second hinge shaft 122. The second support 150b of the other side is mounted to be rotatable to the fourth hinge shaft 132 and the fifth hinge shaft is disposed at the front end of the first support 150a and the second support 150b which are in contact with each other. The harrow for the tractor, characterized in that the first support (150a) and the second support (150b) is formed to be folded up and down about the fifth hinge shaft (151) by mounting so as to rotate the 151. . The tractor according to claim 1, wherein a stopper 123 is formed at the front middle of the support bracket 120 to contact the lower portion of the upper support 140 to prevent further rotation in the lower direction. harrow. The method of claim 1, wherein the front of the support bracket 120, the stopper 124 for contacting the upper portion of the upper support 140 to prevent further rotation in the upper direction is formed for the tractor is formed harrow. According to claim 1, The connecting bracket 130 is coupled to one side of the harrow plate 160, the upper has a long hole 134 and the one side so that the fourth hinge shaft 132 through The second bracket 130b forming the through hole 136 and the other side of the upper support 140 and the second support 150b are supported to be rotated in the up and down direction, but the coupling hole 133 is provided in the front. The harrow for the tractor, characterized in that consisting of the first bracket (130a) is coupled to the long hole 134 by using a coupling pin (135). The bearing members 121a and 131a of claim 1, wherein the bearing members 121a and 131a are inserted into both sides of the upper support 140 so that the first hinge shaft 121 and the third hinge shaft 131 are penetrated to rotate smoothly. The harrow for the tractor, characterized in that each formed. The harrow for a tractor according to claim 1, wherein a bearing member (122a) is formed between the first support member (150a) and the second hinge shaft (122) so as to rotate smoothly. The harrow for a tractor according to claim 1, wherein a bearing member (132a) is formed between the second support (150b) and the fourth hinge shaft (132) so as to rotate smoothly. The stopper 151 of claim 1, wherein a lower portion of the first support portion 150a is in contact with a lower portion of the second support portion 150b to prevent the second support portion 150b from being folded upward. Harrow for a tractor, characterized in that is formed. According to claim 1, One side of the stopper 191 is installed so as to rotate in the center of the mounting bracket 190 and the other side is formed by a spiral portion through the center of the support frame 111 fastener ( 191a) harrow for a tractor, characterized in that it is installed to be coupled to the spiral.

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