KR20110062876A

KR20110062876A - A harrow for tractor

Info

Publication number: KR20110062876A
Application number: KR1020090119729A
Authority: KR
Inventors: 김대호
Original assignee: 태호(주)
Priority date: 2009-12-04
Filing date: 2009-12-04
Publication date: 2011-06-10

Abstract

PURPOSE: A harrow for a tractor is provided to efficiently harrow a field by autonomously controlling the height of a harrow. CONSTITUTION: A harrow for a tractor comprises: a plurality of connection sticks(20) in which front end thereof is hinge-coupled with the upper part of a rotovator connected to the tractor and the rear end thereof is hinge-coupled with a harrow board; a telescopic cylinder(10) in which front end thereof is hinge-coupled with the upper part of the rotovator and the rear end thereof is hinge-coupled with the harrow board; a first bracket(30) connected to the rear end of the telescopic cylinder; a second bracket(40) connected to the rear end of the connection stick; and a long hole(31) which is formed in the first bracket in order to stand the harrow.

Description

Tractor harrow {A HARROW FOR TRACTOR}

The present invention relates to a tractor harrow, and more particularly, to simplify the construction of the harrow but to draw or push the soil at the high place in Munon, the upright angle of the harrow is raised and the rear end of the harrow plate is composed of a support plate. Since the shear of the earth is relatively downward, it excavates the soil, so it protects the slab pieces or the blades coupled to the rear end of the harrow plate. During flattening, the front and rear of the harrow plate composed of a long, straight support is slightly lowered by manipulating the expansion cylinder to prevent the formation of valleys and ridges, or the rear end of the harrow plate, which is usually saw blade-shaped, to face downward. The farmhouse can choose to work to form, and when the tractor retracts the soil with the harrow, The present invention relates to a tractor harrow which can improve flatness by preventing a failure by preventing foreign matters from being left or stuck and preventing the failure and maintaining the angle of the harrow work with respect to Munnon's ground.

In general, when cultivating a rice field, a plowing or flattening of the rice paddies is performed before plowing, and at this time, a relatively high place in Munon is dug up and pushed the soil to a lower place. This is parallel.

As described in the Republic of Korea Patent No. 423996, the conventional harrow is set up the angle of the harrow plate relative to the ground to lower the rear end of the harrow plate when the soil is to be dug and drag, but in this case, the letter Since the rear end of the board is dug in the soil, the blade-shaped valleys and ridges remain in the place where Munon's soil was dug out, and the rear end of the board composed of the blade pieces or the blades, which is relatively weaker than the front of the board. There was a problem that the harrow was damaged, such as bending during digging. This is because the lower end of the frame is connected to the lower surface of the supporter, such as the lower angle of the plate to raise the soil so that the rear end of the plate to pull the soil.

In addition, as described in the Republic of Korea Patent No. 742099, yet another conventional harrow was able to dig the soil into the harrow even when the tractor retracts to the function of the conventional harrow, but a variety of configurations are added to the complex and soil Digging or pushing in the upper operating part of the harrow plate, dirt or foreign matter left or stuck in the operation is not smooth, can cause a breakdown, as in the conventional harrow where the bones and pits appear in the digging place There was still a problem that the harrow was damaged, such as the trailing edge of the harrow plate.

In addition, in the conventional harrow, when flattening in the field, when using a harrow with a saw blade-shaped harrow plate, valleys and ridges are generated, and when using a harrow with a straight elongated harrow plate, valleys and pits occur. Therefore, there was a problem that farmers could not choose whether to form valleys and pits according to the work situation at that time.

In addition, the conventional harrow has been disclosed a technology that maintains a constant height to the ground of Munon even if the tractor itself shakes due to the curvature of the Munon floor during the harrow work, but the upright angle of the harrow plate changes from time to time There was a problem of unevenness.

The present invention was devised to solve the above problems, the object of which is to form a long hole or guide link in the first bracket so that the upright angle of the harrow plate is embodied in the opposite direction of the conventional upright angle, Irrespective of the swing of the tractor due to the difference in bending, the height adjustment of the harrow can be made autonomously within the clearance range by the long hole or guide link, thereby providing a tractor harrow which can realize a more efficient harrow work.

Another object of the present invention is to form a first stopper supported in contact with the connecting rod on the second bracket, when the shear plate of the support plate composed of the support by one stopper drag the bottom of the Munnon when dragging or pushing the soil into the harrow It is simple to construct while simultaneously performing two-way operation of moving or pushing, and also prevents damage to the pieces or the blades coupled to the rear end of the slab, and consists of a straight long support when dragging or pushing the soil. Since the shear plate of the shroud is dug, the dirt is smoothed out, and the tractor reverses and pushes the dirt with the harrow so that no dirt or foreign substances remain on the upper operating part of the shroud so that it does not interfere with the operation of the harrow. It is to provide a new tractor harrow to be prevented.

It is still another object of the present invention to provide a tractor harrow which is provided with a second stopper in contact with the connecting rod on the second bracket to improve the flatness by maintaining the angle of the harrow work with respect to the ground of Munon. will be.

The configuration of the present invention for achieving the above object, a plurality of connecting rods hinged to the upper end of the conventional rotary rotary tractor and hinged to the harrow plate, and the front end is hinged and the rear end of the rotary upper A tractor comprising a expansion cylinder hinged to the harrow plate, and a harrow plate forming a first bracket and a second bracket such that the rear end of the expansion cylinder is connected to the first bracket and the rear ends of the plurality of connecting rods are connected to the second bracket. In dragon harrow,

In the first bracket, as the telescopic cylinder is extended, a rear hole or guide link for inducing the operation of the telescopic cylinder is further provided such that the upright angle of the shaft during uplifting is upward of the rear plate and the front end thereof is relatively lower than the rear end. It is characterized by forming.

The long hole is formed in a substantially vertical direction in front of the hinge axis of the second bracket to extend the expansion cylinder, so that the rear hinge axis of the expansion cylinder moves from the upper limit of the long hole to the lower limit point, and continues the expansion cylinder. When stretched by the upright angle of the harrow, the rear end of the harrow plate is characterized in that the front end is relatively lower than the rear end.

The guide link is hinged to the front end is hinged to the rear end of the expansion cylinder, the hinge axis is located in front of the hinge axis of the second bracket and the rear end is hinged directly or indirectly to the harrow plate, the expansion cylinder during the harrow work The hinge axis of the front end of the guide link coupled to the rear end of the expansion cylinder by the guide link is gradually moved down by the guide link, and then the movement stops by contacting the link stopper. The rear end of the harrow plate is upward and the front end is relatively downward.

Here, the guide link is preferably provided with an elastic member for inducing by applying a force so that the guide link can be rotated downward as the expansion cylinder is extended.

Meanwhile, the present invention includes a plurality of connecting rods hinged to the upper end of the conventional rotary rotary tractor and hinged to the harrow plate, and a telescopic cylinder hinged to the upper end of the rotary top and hinged to the harrow plate. In the tractor harrow consisting of a harrow plate forming a first and a second bracket so that the rear end of the expansion cylinder is connected to the first bracket and the rear ends of the connecting rods are connected to the second bracket.

The second bracket forms a first stopper that is in contact with and supported by the connecting rod. When the expansion cylinder is stretched to attract or push soil, the rear end of the harrow plate is upward and the front end is relatively lower than the rear end. The upright angle to the ground of the harrow plate is limited by the stopper, and when the expansion cylinder is continuously extended, the pressing force of the harrow plate is further applied to effectively excavate the soil.

Here, the upright angle of the harrow plate relative to the first stopper is preferably within 60 degrees with respect to the rear side, and is supported in contact with the top or rear surface of the connecting rod.

On the other hand, the present invention is a plurality of connecting rods hinge hinged to the upper end of the conventional rotary rotary tractor, and the rear end is hinged to the harrow plate, and the front end is hinged to the rotary top and the rear end is hinged to the harrow plate In the tractor harrow consisting of a cylinder and a harrow plate forming first and second brackets connected to the rear end of the expansion cylinder by a first bracket and the rear ends of the plurality of connecting rods to a second bracket.

A second stopper is formed on the second bracket to be in contact with the connecting rod in the downward direction of the first stopper, so that the harrow maintains a constant angle of the harrow work with respect to the surface of Munon to improve flatness.

Here, the upright angle of the harrow plate relative to the second stopper is within 30 degrees with respect to the front side and is supported by contact with the lower surface or the rear side of the connecting rod, and the elastic member is provided on the second stopper to maintain the upright angle. It is preferable.

According to the present invention configured as described above, when dragging or pushing the soil at a relatively high place in Munnon while simplifying the construction of the harrow, the rear end of the harrow plate is upward and the rear of the harrow plate is configured as a support. The shear is dug downward so as to protect the slab pieces or the blades attached to the rear end of the slab plate. By operating the telescopic cylinder, the front of the shroud consists of a long, straight support, which is slightly lowered so that the valleys and ridges are not formed, or the rear end of the harrowboard, which is usually saw blade-shaped, is lowered so that the valleys and ridges are formed. Can be selected and worked on, and when the tractor pushes the soil into the harrow as it retracts, The material does not remain or get stuck in the furnace, which prevents the failure and improves the flatness by maintaining the angle of the furnace operation to the Munon's ground.

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

1 is a perspective view showing a tractor harrow according to the present invention, Figure 2 is a side view of the tractor harrow is raised according to the present invention, Figure 3 is a side view of the tractor harrow is lowered according to the present invention, Figure 4a The tractor harrow according to the present invention is a side view of the upright angle, Figure 4b is a side view of the tractor harrow upright angle according to another embodiment of the present invention, Figure 5 is a tractor harrow according to the invention 6 is a state diagram in which the tractor harrow according to the present invention pushes the soil, and FIG. 7 is a side view of a state in which the connecting rod is in contact with the second stopper of the tractor harrow according to the present invention.

As shown in the drawings, the tractor harrow according to the present invention is a hinge coupled to the upper end of the rotary (B) connected to the tractor (A), the rear end is hinged to the harrow plate 50, a plurality of connecting rods 20 ), The front end is hinged to the upper portion of the rotary (B) and the rear end is hinged to the harrow plate 50, the expansion cylinder 10 and the rear end of the expansion cylinder 10 and the first bracket (30) Jang hole (31) in the first bracket (30) so as to erect the harrow in a conventional harrow consisting of a harrow plate (50) connected to the rear end of the connecting table 20 and the second bracket (40) This is further formed.

The harrow plate 50 is generally composed of a central plate 51, left and right left plate 52 and the right plate 53, as shown in Figure 1, the left plate 51 and the right plate 53 Is configured to be folded into the center plate 51.

As the long hole 31 extends the expansion cylinder 10, the upright angle of the shaft is raised so that the rear end of the shroud plate 50 is upward and the front end thereof is relatively lower than the rear end of the expansion cylinder 10. It is formed on the first bracket 30 to induce the.

At this time, the long hole 31 is formed long in the vertical direction in the first bracket 30, is formed in front of the hinge axis of the second bracket 40, as the expansion cylinder 10 is extended The rear end hinge axis of the expansion cylinder 10 moves from the upper limit point of the long hole 31 to the lower limit point so as to erect the harrow.

In this case, when the expansion cylinder is continuously extended, the rear end of the harrow plate 50 is upward, and the front end is relatively lower than the rear end, while the support shaft 55 is the front end of the harrow plate 50. The part touches the ground, and the trailing edge 57 portion is spaced apart from the ground.

Therefore, it is possible to prevent the blade 57 from being damaged in advance, and smoothly excavate the soil when dragging or pushing the soil, thereby increasing work efficiency.

On the other hand, in another embodiment for establishing the upright angle of the harrow, as the guide link 32 is installed on the first bracket 30 as shown in Figure 4b to extend the expansion cylinder 10 as the upright angle of the harrow It is possible to induce the operation of the expansion cylinder 10 so that the rear end of the harrow plate 50 is upward and the front end thereof is relatively lower than the rear end.

At this time, the guide link 32 is a front end hinged to the rear end of the expansion cylinder 10 and the hinge axis is located in front of the hinge axis of the second bracket 40, the rear end of the harrow plate 50 As the extension cylinder 10 is extended by being directly or indirectly hinged to the hinge shaft at the rear end of the expansion cylinder 10 by the guide link 32, the hinge shaft is gradually moved downward.

Here, it is preferable that the guide link 32 is provided with an elastic member 35 for applying a force so that the guide link 32 can be rotated downward as the expansion cylinder 10 is extended.

In the case of setting the harrow as described above, the first stopper 41 is formed in the second bracket 40 to be in contact with the connecting table 20 in order to limit the upright angle of the harrow plate 50 with respect to the ground. .

Therefore, when the expansion cylinder 10 is stretched to attract or push soil, the rear end of the shroud plate 50 is upwardly moved and the front end thereof is relatively downward, and is stopped while being in contact with the first stopper 41. The upright angle of 50) is limited. Continued extension of the expansion cylinder 10 in this state, the force is applied to the harrow plate 50 is further applied, so that the support 55 is in contact with the ground to effectively dig out the soil, to be able to dig flat do.

Here, the first stopper 41 is preferably formed to be inclined on the upper side of the second bracket 40 so that the upright angle of the harrow plate 50 has an angle within 60 degrees with respect to the rear, and the connecting table ( The upright angle is limited while being supported in contact with the top or back of 20).

In the present invention, the first stopper 41 is formed on the second bracket 40, but the first stopper 41 is formed on the harrow plate 50 adjacent to the second bracket 40 to form the connecting table. It may be brought into contact with (20).

In addition, the second bracket 40 is formed with a second stopper 42 which is in contact with and supported by the connecting table 20 in the downward direction of the first stopper 41.

The second stopper 42 is in contact with the bottom surface or the rear surface of the connecting table 20, when the contact angle with the connecting table 20, the upright angle of the harrow plate 50 is less than 30 degrees to the front It is formed to have.

On the other hand, it is preferable that the elastic member 45 is further provided so that the upright angle of the harrow plate 50 maintains an angle within 30 degrees with respect to the front.

As described above, in the present invention, when the drag is to be pushed or pushed to the soil, the rear end of the shroud is upward and the shear of the shroud composed of the support is relatively downward. As it digs, it protects the rafters and the blades connected to the rear end of the rafters, and the shear of the rafters composed of a long, straight support makes the place where the soil is dug smoothly. The farmer can choose to work so that the front end of the harrow plate composed of long supports of the head is somewhat lowered so that the valleys and the pits are not formed or the rear end of the harrow plate, which is usually in the form of saw blades, is lowered to form the valleys and pits. When the tractor pushes the soil with the tractor while reversing, there is no soil or foreign matter on the upper operating part of the harrowboard, It no longer receives it to avoid failure, and is a very useful invention in relates to a tractor for which sseorae sseorae is to keep the angle constant sseorae operations on the paddy field surface improve the flatness.

1 is a perspective view showing a tractor harrow according to the present invention,

2 is a side view in which the tractor harrow is raised according to the present invention;

Figure 3 is a side view of the tractor harrow is lowered according to the present invention,

Figure 4a is a side view of the upright angle set up for the tractor according to the present invention,

Figure 4b is a side view erected the angle of the tractor harrow according to another embodiment of the present invention,

5 is a state in which the tractor harrow dragging the soil according to the present invention,

6 is a state in which the tractor harrow pushes the soil according to the present invention;

7 is a side view of a state in which the connecting rod is in contact with the second stopper of the tractor harrow according to the present invention.

A: Tractor B: Rotary

10: expansion cylinder 20: connecting rod

30: first bracket 31: long hole

32: guide link 35, 45: elastic member

40: second bracket 41: first stopper

42: second stopper 50: harrow board

51: center plate 52: left side plate

53: right side plate 55: support base

57: Southern

Claims

A plurality of connecting rods having a hinge coupled to the upper part of the tractor rotary hinge and a rear end hinged to the harrow plate, a telescopic cylinder hingedly coupled to the upper part of the rotary rotary hinge, and a rear end of the telescopic cylinder, In the tractor harrow consisting of a harrow plate connected to the first bracket and forming the first and second brackets to be connected to the rear end of the plurality of connecting rods to the second bracket,

As the first bracket extends the expansion cylinder, a long hole for inducing the operation of the expansion cylinder is further formed such that the upright angle of the harrow is upward and the front end thereof is relatively lower than the rear end. Tractor harrows.

According to claim 1, wherein the long hole is formed longer in the vertical direction in front of the hinge axis of the second bracket to extend the expansion cylinder as the rear hinge axis of the expansion cylinder is moved from the upper limit of the long hole to the lower limit point The tractor harrow, characterized in that.

A plurality of connecting rods having a hinge hinged to the upper part of the tractor rotary hinge and a rear end hinged to the harrow plate, a telescopic cylinder hinged to its front end hinged to the harrow plate, and a rear end of the telescopic cylinder In the tractor harrow consisting of a harrow plate connected to the first bracket and forming the first and second brackets to be connected to the rear end of the plurality of connecting rods to the second bracket,

As the first bracket extends the expansion cylinder, a guide link for inducing the operation of the expansion cylinder is installed such that the upright angle of the harrow is raised upward of the harrow plate and the frontward of the harrow plate is relatively lower than the rear end. The link is hinged to the rear end of the expansion cylinder and the hinge axis of the hinge is located in front of the hinge axis and the rear end is hinged directly or indirectly to the harrow plate, and as the extension cylinder is extended The hinge shaft of the rear end of the expansion cylinder by the guide link is gradually moved downward for the tractor.

4. The tractor harrow as set forth in claim 3, wherein the guide link is provided with an elastic member for applying a force so that the guide link can be rotated downward as the expansion cylinder is extended.

The second bracket forms a first stopper that is in contact with the connecting rod, and when the expansion cylinder is stretched to attract or push soil, the rear end of the shroud is upward and the front end thereof is relatively downward, and the first stopper is moved by the first stopper. The upright angle with respect to the ground of the harrow plate is limited, and when the extension cylinder is continuously extended, a force applied to the harrow plate is further applied to dig the soil.

6. The tractor harrow according to claim 5, wherein the upright angle of the harrow plate with respect to the first stopper is within 60 degrees with respect to the rear, and is in contact with and supported by the upper or rear surface of the connecting rod.

The second bracket is provided with a second stopper which is in contact with the connecting rod in the downward direction of the first stopper, the upright angle of the harrow plate relative to the second stopper maintains the angle within 30 degrees with respect to the front The tractor harrow, characterized in that the elastic member is further provided to.

8. The tractor harrow according to claim 7, wherein the second stopper is supported in contact with the lower surface or the rear surface of the connecting rod.