KR100452184B1 - a harrow for rotary - Google Patents

Abstract

The present invention relates to a harrow for a rotary, the harrow unit connected by a chain to the harrow support member of the harrow connecting body by pushing the rod to push the soil backwards, and thus can be useful in the case of low edges It is in such a way.

Rotary harrow of the present invention, the harrow connecting body 20 is connected to the first pin 14, the front end is rotated up and down on the upper portion of the rotary body 10, the harrow connecting body 20 is installed at the rear end of the main A harrow unit connected to both sides of the harrow 30 so that the auxiliary harrow 34 is folded, the harrow connecting body 20 and first and second operating mechanisms 40 and 42 connected to adjust the angle of the harrow unit. In the rotary harrow, the harrow support member 22 is mounted to the rear end of the harrow connecting body 20 and the harrow support member 22 is connected to the main harrow of the harrow unit through two pairs of chains 32a and 32b. 30 is connected to the first bracket 21 behind the harrow connecting body 20, the first and second links (44a, 44b) with the slider 46 is installed in a four-section link method and the first The second link 44a, 44b and the end of the piston rod 40a of the first operating mechanism 40 are connected, and the rod 48 is connected to the second bracket 31 and the slider 46 behind the main harrow 30. Fall connection It is characterized by.

Description

Harrows for Rotary {a harrow for rotary}

The present invention relates to a rotary harrow, and more particularly, to a rotary harrow, which is provided so as to be in close contact with a rod supporting member of the harrow connecting body by setting up a harrow unit connected by a chain and pushing the soil backward.

The rotary is connected by the upper link, which is a three-point linkage mechanism at the rear of the tractor, and the lower links on both sides of the lower portion thereof, and is driven by power from the tractor. In other words, the tractor rotary is driven by the tractor's PIO shaft (Power Take Off Shaft) and the gearbox input rotation shaft is universal.

The rotary is positioned as a multifunctional work machine by attaching other work machines as well as a serena fertilizer spraying mechanism and the like to have a complex function.

Such a rotary harrow has a harrow main body in which a driving motor is mounted in the center, a pinion and a rack is mounted inside, and an auxiliary unit mounted on both sides of the harrow main body, as described in Korean Utility Model Registration No. 20-0182585. In a harrow consisting of a blade and a frame for supporting the harrow body, a buffer part connected to the front of the harrow body to absorb an external shock is mounted at the center of the frame, and both sides of the harrow body and the chain are provided on both sides of the frame. Is equipped with an angle adjuster is connected through, the auxiliary blade is mounted on the outer surface of the harrow main body is pulled in and out of the bar when the collision with the peripheral object can be left or right or backwards, so that the auxiliary blade is easily bent Loss, damage and breakage could be prevented beforehand.

However, in the conventional rotary harrow as described above, when the harrow edge is low because the harrow body and the auxiliary blade are simply connected by two chains, the soil can be pushed backward while the harrow body and the auxiliary blade are upright. There was a problem that can not.

An object of the present invention has been researched and developed in order to solve the above-mentioned conventional problems, it is possible to push the soil to the rear by contacting the harrow support member of the harrow connection body with a rod connected to the harrow unit connected by the chain, so It is to provide a rotary harrow which can be useful when the edge of the edge is low.

Another object of the present invention is to provide a rotary harrow that can adjust the falling angle of the harrow connecting body by varying the length of the rod having the turbo buckle, thereby adjusting to suit the conditions of the harrow unit.

1 is a side view showing a harrow for a rotary according to the present invention.

Figure 2 is a plan view showing a part of the present invention in Figure 1;

Figure 3a is an exploded perspective view showing a four-section link portion that is the main part of the present invention.

3B is an assembled side view of FIG. 3A;

Figure 4a is a perspective view showing a connection portion of the main harrow and the auxiliary harrow in the harrow unit of the present invention.

4B is a rear view of FIG. 4A.

5 is a plan view of the auxiliary harrow is folded with respect to the main harrow of the present invention.

Figure 6 is a side view showing a state of use of one embodiment for a rotary harrow of the present invention.

<Explanation of symbols for main parts of drawing>

10: rotary body 12: connecting bracket 14: first pin

20: harrow connecting body 21: the first bracket 22: the harrow support member

23: Bolt type 24: Rod 26: Turbine buckle

30: main harrow 31: 2nd bracket 32a, 32b: chain

34: auxiliary harrow 35: third pin 37a: third link

37b: fourth link 40: first operating mechanism 40a, 42a: piston rod

42: second operating mechanism 44a: first link 44b: second link

46: Slider 48: Rod 49: Pushpin

Rotary harrow of the present invention for achieving the above object, the harrow connecting body connected to the first pin by the first pin so as to rotate up and down on the top of the rotary body, the harrow connecting body is installed on both ends of the main harrow In a conventional rotary harrow including a harrow unit connected to the auxiliary harrow to be folded, the harrow connecting body and the first and second operating mechanisms connected to adjust the angle of the harrow unit, the harrow supporting member at the rear end of the harrow connecting body. And the main harrow of the harrow unit is connected to the harrow support member via two pairs of chains, and the two first and second links are connected to the first bracket behind the harrow connecting body together with the slider. The piston rod end of the first link and the first operating mechanism is installed and the rod is connected to the second bracket and the slider behind the main harrow.

The upper portion of the first link is characterized in that the pressing pin is formed to press the upper portion of the rod when the piston rod of the first operating mechanism is extended.

In addition, the second pin of the middle portion of the upper link and the rear end of the harrow connecting body is characterized in that the rod having a turnbuckle connected to the third pin to limit the lowering position of the harrow connecting body.

Hereinafter, the rotary harrow of the present invention will be described in detail with reference to the accompanying drawings of the embodiment.

1 to 5, the connecting bracket 12 of the upper end of the rotary body 10 is connected to the harrow connecting body 20 connected through the first pin 14 of the rear end thereof is extended to the rear, The harrow connecting body 20 has one side of the first operating mechanism 40 connected to the second pin 15 in the middle of the upper link 16 so as to be rotated up and down about the first pin 14. One end of the piston rod 40a is connected to the first link 44a and the third connecting pin 45c at the rear end of the harrow connecting body 20.

The rear buckle 26 connected to the second pin 15 in the middle portion of the upper link 16 and the third pin 27 at the rear end of the harrow connecting body 20 so as to adjust the lowering angle of the harrow connecting body 20. The rod 24 including the is connected.

At the rear end of the harrow connecting body 20, a harrow supporting member 22 extending downward is mounted by a type bolt 23, and the harrow supporting member 22 of the harrow connecting body 20 is disposed up, down, left, and right. The upper end of the main harrow 30 is connected through the chain 32a of a predetermined length so as to rotate freely, and another chain 32b is extended from the middle portion of the chain 32a to the top of the harrow support member 22. It is connected.

An auxiliary harrow 34 is connected to both ends of the main harrow 30 so as to be folded and unfolded by the second operating mechanism 42. The main harrow 30 and the auxiliary harrow 34 are connected to each other. The brackets 30a and 34a are formed to overlap each other at the rear side, and the fourth pins 35 are located at the overlapping position of the brackets 30a and 34a, that is, on the connection line between the main harrow 30 and the auxiliary harrow 34. And third and fourth links 37a and 37b connected to the brackets 30a and 34a at both sides of the fourth pin 35 through the fifth and sixth pins 36a and 36b to overlap each other. The seventh pin 38 connected to the overlapping portion of the third and fourth links 37a and 37b and the end of the piston rod 42a of the second actuating mechanism 42 are connected.

In addition, one end of two first and second links 44a and 44b is connected to the first and second connecting pins 45a and 45b before and after the first bracket 21 at the rear end of the harrow connecting body 20. The slider 46 is connected to the first and second links 44a and 44b through third and fourth connecting pins 45c and 45d in a four-section link method, and the main harrow 30 is connected to the first and second links 44a and 44b. The second bracket 31 is led backward, and the rod 48 is connected to the second bracket 31 and the slider 46 through the fifth and sixth connecting pins 47a and 47b.

Although the rod 48 is illustrated and described in an arc shape, it may be formed in a straight line so as not to interfere with each other.

First operation to rotate the harrow connecting body 20 up and down on the third linking pin 45c and the upper link 16 of the rotary body 10 to which the first link 44a and the slider 46 are connected. The mechanism 40 is connected. In other words, the connecting pin 45c connecting the first link 44a and the slider 46 is connected to the piston rod 40a, which is projected to one side from the first operating mechanism 40, and the middle of the upper link 16 is connected. The body of the tip of the first operating mechanism 40 is connected to the second pin 15.

The first link 44a of one of the first and second links 44a and 44b pushes the upper portion of the rod 48 when the piston rod 40a of the first actuating mechanism 40 is extended. 49 is formed.

In the figure, reference numeral 17 denotes a lower link of the tip of the rotary body 10, and 18 denotes a tilling blade under the rotary body 10 that is rotated by receiving power from the Pitio shaft of the tractor.

The operation of the rotary harrow of the present invention configured as described above will be described with reference.

First, the upper and lower links 16 and 17 of the tip of the rotary body 10 are connected to the upper and lower links of the tractor (not shown), and then the hydraulic hoses of the first operating mechanism 40 are connected to each other. Connect the input shaft of the gearbox (not shown) of the five shafts and the rotary body 10 to the universal joint.

When only the rotary operation is to be performed in this state, when the piston rod 40a of the first operating mechanism 40 is operated to be inserted, the link 44a connected to the end of the piston rod 40a of the first operating mechanism 40 is first inserted. As the rod 48 is also rotated while being pulled, the main harrow 30 is rotated downward with respect to the fourth pin 35. As a result, the harrow connecting body 20 is centered on the first pin 14. It will be rotated upward and lifted up.

As the harrow connecting body 20 is lifted upward in this way, the main harrow 30 has a center of the fifth connecting pin 47a of the rod 48 because the chain 32a of the tip can be freely folded every node. It is rotated downward so that it is seated on the harrow support member 22 of the harrow connecting body (20). At this time, the rod 24 should be folded about the third pin 27, which is a connecting portion of the rod 24 and the turnbuckle 26, since the rod 24 should accommodate a length shortened by the rotation of the harrow connecting body 20. do.

Since the rotary body 10 is towed as the tractor moves forward, only the rotary work to crush the soil by the tilling blade 18 of the rotary body 10 can be performed.

As described above, when the rotary work and the harrow work are to be performed at the same time, the piston rod 40a of the first operating mechanism 40 is extended to operate so that the harrow connecting body 20 and the main harrow 30 themselves. By the weight, the harrow connecting body 20 is rotated downward about the first pin 14. As the harrow connecting body 20 is rotated in this way, the main harrow 30 is lowered by hanging its own length by the length allowed by the chain 32b, and the bottom of the main harrow 30 contacts the ground. It starts to rotate forward. At this time, the harrow connecting body 20 is further lowered by an angle allowing the lowering of the length of the rod 24, that is, the harrow connecting body 20.

As such, when the lower end of the main harrow 30 touches the ground, the resistance of the main harrow 30 is limited by the resistance and the first link 44a connected to the end of the piston rod 40a of the first operating mechanism 40. Is rotated only by the weight of the harrow connecting body 20 without rotating the main harrow 30 is rotated forward through the two chains (32a, 32b) is operated as shown in FIG.

After the rotary body 10 is towed as the tractor is advanced to the main harrow (30) installed on the harrow connecting body 20 while performing a rotary operation to crush the soil finely by the tilling blade 18 of the rotary body 10 The bottom of) flattens the ground evenly. At this time, the main harrow 30 connected to the harrow support member 22 at the rear end of the harrow connection body 20 at the top of the rotary body 10 even though the rotary body 10 is driven in an inclined state. Since the flow to the top, bottom, left and right is free, even ground.

And when the soil acting on the main harrow (30) during the harrow work is overloaded on the main harrow (30) or inclined in the forward direction of the tractor due to unevenness of the ground according to the load on the main harrow (30) The rod 48 and the first and second links 44a and 44b communicate with each other, and the interlocking action of the rod 48 and the first and second links 44a and 44b is the first of the harrow connecting body 20. The first and second links 44a and 44b rotate about the first and second connection pins 45a and 45b of the bracket 21.

In other words, because the main harrow 30 is rotated relative to the harrow connecting body 20 so that the inclination angle of the main harrow 30 is adjusted, thereby ensuring the safety of the harrow and maintaining a parallel degree of the harrow surface. I can keep it

In particular, since the main harrow 30 is connected to the harrow support member 22 of the harrow connecting body 20 through the chains 32a and 32b, the ground is flat even in a state where the flow of the harrow is free.

In addition, when performing a wider harrow work, when the second actuating mechanism 42 behind the main harrow 30 is operated, the piston rod 42a of the second actuating mechanism 42 starts to expand and the piston rod ( 42a) Since the auxiliary harrow 34 is pushed outward through the two first and second links 44a and 44b connected to the ends, the auxiliary harrow 34 pushes the fourth pin 35 of the brackets 30a and 34a. After spreading around the center, you can perform a harrow work on a large area.

The auxiliary harrow 34 is provided to be folded sequentially or to be folded at the same time so that one side is folded and the other side is folded according to the selection of the piston rod 42a of the second operating mechanism 42 to be sequentially or simultaneously extended. You can arrange.

When the auxiliary harrow 34 is provided to be sequentially folded, the harrow work may be performed in a state in which only the main harrow 30 and one of the auxiliary harrows 34 are unfolded.

After completing the harrow work as described above, if the second actuating mechanism 42 behind the main harrow 30 is operated again, the piston rod 42a of the second actuating mechanism 42 starts to shrink and the piston rod 42a is started. Since the auxiliary harrow 34 is pulled toward the main harrow 30 through the two first and second links 44a and 44b connected to the ends, the auxiliary harrow 34 is connected to the fourth pin 35 of the brackets 30a and 34a. It is folded to the rear of the main harrow (30) with the center.

Therefore, the auxiliary harrow 34 rotated about the fourth pin 35 is connected to the two third and fourth links 37a and 37b to be folded at 180 ° with respect to the main harrow 30. When changing direction, it is possible to change direction with a small radius.

And Figure 6 is a view showing another working method of the present invention, after the main harrow (30) is lowered even in contact with the ground continues to further extend the piston rod (40a) of the first operating mechanism 40 harrow connecting body Two first and second links 44a and 44b mounted on the rear end first bracket 21 are pushed backward together with the slider 46 and the rod 48 connected to the slider 46 is The main harrow (30) will be erected.

When the rotary is reversed in the state in which the main harrow 30 is set up as described above, the soil may be pushed backward by the main harrow 30 and the auxiliary harrow 34. At this time, the push pin 49 formed on one of the first links 44a of the first and second links 44a and 44b presses the upper end of the rod 48 to prevent the main harrow 30 from being lifted upward. And the harrow support member 22 is in close contact with the front surface of the main harrow 30 to maintain the parallel of the main harrow (30).

Therefore, since it can be easily pushed toward the edge from the center of the answer, it can be useful when the edge of the toad is low.

As described in detail above, the rotary harrow of the present invention is able to push the soil backwards because the harrow unit connected by the chain is erected to be in close contact with the harrow support member of the harrow connecting body, and thus the edge of the ridge is low. There are unique effects that can be useful in cases.

In addition, the present invention has a unique effect of being easy to adjust the angle of the main harrow, as well as lifting and lowering the harrow connecting body using a single cylinder.

Claims (3)

The harrow connecting body 20 is connected to the upper end of the rotary body 10 by the first pin 14 and is installed at the rear end of the harrow connecting body 20 and is provided on both sides of the main harrow 30. In a conventional rotary harrow including a harrow unit connected to the auxiliary harrow 34 to be folded, the harrow connecting body 20 and first and second operating mechanisms 40 and 42 connected to adjust the angle of the harrow unit. , The harrow support member 22 is mounted on the rear end of the harrow connecting body 20, and the harrow support main body 30 of the harrow unit is connected to the harrow support member 22 through two pairs of chains 32a and 32b. Two first and second links 44a and 44b are installed on the first bracket 21 behind the harrow connecting body 20 together with the slider 46 in a four-section link method, and the first and second links are provided. (44a, 44b) and the end of the piston rod (40a) of the first operating mechanism 40 is connected, the rod 48 is connected to the second bracket 31 and the slider 46 behind the main harrow (30) Harrow for tractor rotary. The push pin 49 is formed in the upper portion of the first link 44a to press the upper portion of the rod 48 when the piston rod 40a of the first actuating mechanism 40 is extended. Harrow for tractor rotary characterized by the above. The second pin 15 of the middle portion of the upper link 16 and the rear end of the harrow connecting body 20 to the third pin 27 to limit the lowered position of the harrow connecting body 20. Harrow for a tractor rotary, characterized in that the rod (24) having the connected to the buckle (26) is connected.