JP3992098B2 - Agricultural machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an agricultural machine that can perform an appropriate embedding work.
[0002]
[Prior art]
A conventional farming machine such as a plowing machine includes a plowing body such as a plowing rotor that performs a plowing work, a leveling body that can be turned up and down that performs a leveling work behind the plowing body, and a plowing body and a leveling body. And a spring rake body that can be rotated up and down to embed impurities (such as rice straw) in the soil between the fields.
[0003]
Then, the spring rake body and the leveling body are connected to each other, and the embedding depth (working depth) of the spring rake body is kept substantially constant regardless of the change in the tilling depth of the tilling body.
[0004]
[Problems to be solved by the invention]
However, in the conventional agricultural machine described above, since the embedding depth of the spring rake body is substantially constant regardless of the change in the tilling depth of the tilling body, there is a possibility that appropriate embedding work cannot be performed.
[0005]
This invention is made | formed in view of such a point, and it aims at providing the agricultural machine which can perform suitable embedding work.
[0006]
[Means for Solving the Problems]
請 Motomeko 1 agricultural machine according includes a tilling member for the tilling, the tillage member and a cover member for covering the upper side of the first leveling member capable vertical pivot which is attached to the rear end of the cover body A second leveling body that can be turned up and down attached to the rear end portion of the first leveling body, and attached to the rear end portion of the cover body, and the cultivating body and the first leveling body, A spring rake body that is positioned between the second leveling body and that is capable of rotating up and down to embed the impurities in the cultivated soil under the field surface, and abuts the spring rake body in a freely detachable manner. Rake setting means for changing the embedding depth according to the change in the tillage depth of the tillage body is provided.
[0007]
Then, due to the contact between the spring rake body and the rake setting means, the embedding depth of the spring rake body changes in accordance with the change of the tilling depth of the tillage body. When the tillage depth is shallow, the embedding depth becomes shallow.
[0008]
Agricultural machine according to claim 2, wherein, in the agricultural machine according to claim 1 Symbol placement, the embedding depth of the spring rake body is one which is adjustable by the operation of the operation unit.
[0009]
And the embedding depth of a spring rake body can be easily adjusted by operation of an operation part, and it becomes possible to respond | correspond appropriately to the soil quality etc. of a farm field.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the configuration of an embodiment of an agricultural machine according to the present invention will be described with reference to the drawings.
[0011]
In FIG. 1 to FIG. 4, reference numeral 1 denotes an agricultural machine. The agricultural machine 1 is connected to a rear portion of a tractor that is a traveling vehicle (not shown) via a three-point link mechanism (three-point link hitch) that is a working machine lifting support device. It is a scraping work machine or the like that is mounted so that it can be moved up and down.
[0012]
The farm work machine 1 includes a work machine main body 2 that is attached to a tractor in a longitudinal shape in the left-right direction, for example.
[0013]
The working machine body 2 is rotatably attached with a cultivating body 3 such as a cutting rotor that performs a cultivating operation while rotating in a predetermined direction (for example, a down cut direction). The cultivating body 3 includes, for example, a cultivating shaft 4 in the left-right direction and cultivating claws 5 fixed to the cultivating shaft 4 in a radial manner.
[0014]
In addition, a substantially plate-shaped cover body 6 that covers the top of the tillage body 3 is attached to the work machine body 2. A leveling body mounting portion 7 and a rake body mounting portion 8 are formed at the rear end of the cover body 6. The rake body mounting portion 8 is constituted by a support shaft 9 in the left-right direction located from one end portion in the left-right direction of the cover body 6 to the other end portion.
[0015]
Further, the ground leveling body mounting portion 7 at the rear end of the cover body 6 has a substantially plate-like first leveling body (level plate) 11 that can be turned up and down around the front end side (upper end side) as an elastic body. It is attached via a rubber plate 12 that is. Although not shown, the first leveling body 11 may be attached to the rear end portion of the cover body 6 via the rotation shaft in the left-right direction without using the rubber plate 12.
[0016]
This first leveling body 11 is located behind the tillage body 3 during the ground cutting work, and performs the leveling work in an inclined posture. The first leveling body 11 has, for example, a main body plate portion 13 that is long in the left-right direction, and side plate portions 14 are integrally provided at both ends of the main body plate portion 13. Further, a projecting plate portion 15 that protrudes downward is integrally provided at a substantially central portion in the left-right direction of the main body plate portion 13.
[0017]
Further, at the rear end portion (the rear end portion of the side plate portion 14) of the first leveling body 11, a substantially plate-like second leveling body (rake) 22 that can be turned up and down around the front end side is provided on the left and right sides. It is attached via a rotating shaft 23 in the direction.
[0018]
The second leveling body 22 is positioned behind the tillage body 3 during the ground cutting work, and performs the leveling work in a horizontal posture. Then, the lower surface of the second leveling body 22 is a substantially flat grounding surface that flatly contacts the field surface H1, which is the surface of the field H such as paddy fields, to level the field surface H1 flatly. It has surface 24.
[0019]
Note that the first leveling body 11 and the second leveling body 22 constitute a leveling body 25 that is positioned behind the tillage body 3 and that can rotate up and down to perform leveling work.
[0020]
Furthermore, a spring rake body 31 that can be turned up and down around the front end side (upper end side) is attached to the rake body attachment portion 8 at the rear end portion of the cover body 6.
[0021]
The spring rake body 31 is located at least partially between the tillage body 3 and the first leveling body 11 and the second leveling body 22 at the time of cutting work, so that impurities (for example, rice straw, etc.) in the soil are cultivated. ) Is embedded under the field surface H1.
[0022]
The spring rake body 31 has, for example, a substantially cylindrical tubular portion 32 that is elongated in the left-right direction and is rotatably fitted to the outer periphery of the support shaft 9 that is the rake body attachment portion 8.
[0023]
The tubular portion 32 is integrally provided with a rake portion 33 that is elastically deformable and extends over substantially the entire length of the tubular portion 32. The rake portion 33 is composed of a plurality of linear elastic rods 34 arranged at intervals in the left-right direction, and a curled portion 35 is formed on each elastic rod 34.
[0024]
An abutting plate portion 36 is integrally provided at a substantially central portion in the left-right direction of the cylindrical portion 32. The abutting plate portion 36 has a protrusion 37 protruding in the lateral direction at the rear end portion.
[0025]
On the other hand, the agricultural work machine 1 abuts on and away from the spring rake body 31 by earth pressure from the field H during the cutting operation, and the embedding depth a of the spring rake body 31 (the lower end of the spring rake body 31 and A rake setting means 41 is provided for changing the difference between the working surface 24 of the second leveling body 22 and the tillage depth b of the tillage body 3.
[0026]
The rake setting means 41 is configured by a substantially plate-shaped setting body (regulation guide body) 42 that is detachably attached to the protruding plate portion 15 of the first leveling body 11, for example.
[0027]
The embedding depth a can be changed (adjusted) by exchanging the setting body 42 with a setting body (not shown) having another shape. Further, the setting body 42 may be detachably attached to the second leveling body 22.
[0028]
Then, the lower surface of the setting body 42 is in a substantially arcuate contact with which the protrusion 37 of the contact plate portion 36 of the spring rake body 31 comes into contact with and separates from the bottom surface of the spring rake body 31 based on the earth pressure from the field H during the cutting operation. It is a receiving surface 43. The protrusion 37 of the spring rake body 31 slides along the contact receiving surface 43 of the setting body 42 by the rotation of the spring rake body 31 and the first leveling body 11.
[0029]
The embedding depth a (cm) of the spring rake body 31 changes according to the change of the tilling depth b (cm) of the tillage body 3 based on the operation of the three-point link mechanism of the tractor. The relationship of a = (b / 4) +2 [cm] is established between a and the tilling depth b.
[0030]
Further, an input shaft 44 for inputting power from the tractor side is provided in the front center portion of the work machine body 2, and the power from the input shaft 44 is transmitted to the tillage body 3 through transmission means (not shown).
[0031]
Next, the operation of the above embodiment will be described.
[0032]
First, in the case of roughing (deep scraping), as shown in FIG. 2, a tractor three-point link mechanism is used so that the tillage depth b of the tillage body 3 is relatively deep, for example, about 15 cm. The farm work machine 1 is moved forward in the field H by the traveling of the tractor in a state where the entire farm work machine 1 is supported at a desired height position.
[0033]
Then, the soil of the field H is cultivated by the cultivator 3, and the cultivated soil passes through the gap between the spring rake bodies 31 and is leveled by the first leveling body 11 and the second leveling body 22. Flattened.
[0034]
Further, in the spring rake body 31 located between the tillage body 3, the first leveling body 11 and the second leveling body 22, impurities such as rice straw in the cultivated soil are embedded under the field surface H1.
[0035]
The embedding depth a of the spring rake body 31 is, for example, about 6 cm and is relatively deep corresponding to the tilling depth b of the tillage body 3, and impurities in the tillage are at a relatively deep position below the field surface H1. Deep-filled.
[0036]
In this deep-embedding process, the spring rake body 31 receives the earth pressure from the field H side, so that the protrusion 37 of the contact plate portion 36 and the contact receiving surface 43 of the setting body 42 of the rake setting means 41 are obtained. The front side of the rake part 33 comes into contact with the rake part 33 so that the substantially lower half of the rake part 33 is inserted into the soil of the field H, and the embedding operation is performed.
[0037]
Then, after finishing the roughing, when finishing finishing (shallow scraping), as shown in FIG. 3, the tiller depth b of the tillage body 3 is relatively shallow, for example, about 8 cm. With the three-point link mechanism supporting the entire farm work machine 1 at a desired height position (a slightly higher position than in the rough), the farm work machine 1 is moved forward on the farm field H by running the tractor.
[0038]
Then, as in the rough era, the tiller 3 performs the tilling work, the first leveling body 11 in the inclined position and the second leveling body 22 in the horizontal position perform the leveling work, and the spring rake body 31 becomes the rice. The padding depth a of the spring rake body 31 is relatively shallow corresponding to the tilling depth b of the tillage body 3, for example, about 4 cm. A shallow embedding process is performed at a relatively shallow position below the surface H1.
[0039]
During this shallow filling process, the spring rake body 31 receives the earth pressure from the field H side, so that the projection 37 of the contact plate portion 36 and the contact receiving surface 43 of the setting body 42 of the rake setting means 41. The lower end of the rake portion 33 is inserted into the soil of the field H (a state close to a standing posture), and the embedding operation is performed.
[0040]
At the time of finishing, since the embedding depth a of the spring rake body 31 is shallower than that at the time of the rough, the impurities once buried in the deep position at the time of the rough will not be lifted again. Further, since the spring rake body 31 is in a state close to a standing posture, the screen effect, that is, the soil breaking property is improved.
[0041]
Thus, according to the agricultural working machine 1 of the above-described embodiment, the embedded depth a of the spring rake body 31 is set to the tillage body 3 by the contact between the spring rake body 31 and the setting body 42 of the rake setting means 41. For example, when the tillage depth b is deep, the embedding depth a becomes deep, and when the tillage depth b is shallow, the embedding depth a becomes shallow. Therefore, it is possible to improve the machining efficiency.
[0042]
Further, as shown in FIG. 4, the spring rake 31 is rotated downward by its own weight so as to be separated from the leveling body 25 when the tractor is lifted by the three-point link mechanism (at the time of lift-up). Therefore, impurities such as rice straw sandwiched between the leveling body 25 (first leveling body 11) and the spring rake body 31 can be easily eliminated.
[0043]
That is, for example, after the end of the scraping operation, when the entire farm work machine 1 is lifted to a desired height position (position where the spring rake body 31 is separated from the field surface H1) by the three-point link mechanism of the tractor, as shown in FIG. The spring rake body 31 rotates downward about the support shaft 9 due to its own weight and hangs down. As a result, the projection 37 of the contact plate portion 36 separates from the contact receiving surface 43 of the setting body 42 of the rake setting means 41. In addition, the space between the first leveling body 11 and the spring rake body 31 is enlarged. For this reason, the foreign substance pinched | interposed between the leveling body 25 (1st leveling body 11) and the spring rake body 31 can be excluded easily.
[0044]
Further, as is apparent from the two-dot chain line in FIG. 4, when the second leveling body 22 is placed on the top surface of the heel so as to start the cutting work from the side of the heel, it is the tip side of the spring rake body 31. The lower end side does not collide with the eaves and the spring rake body 31 can be prevented from being damaged.
[0045]
The rake setting means 41 of the agricultural working machine 1 is not limited to the one configured by the setting body 42 attached to the first leveling body 11, for example, as shown in FIGS. 5 and 6, the cover body 6 And a setting rotation arm body 51 attached so as to straddle the leveling body 25.
[0046]
The setting rotation arm body 51 has, for example, a long hole 52 formed in a front end portion which is one end portion and a connection hole 53 formed in a rear end portion which is the other end portion. The support shaft 9 of the cover body 6 is slidably inserted along the long hole 52 into the long hole 52 of the setting rotation arm body 51. The rotation shaft 23 of the leveling body 25 is rotatably connected to the connection hole 53 of the setting rotation arm body 51. Although not shown, the rear end portion of the setting rotation arm body 51 may be rotatably connected to the second leveling body 22.
[0047]
In addition, the lower surface of the set rotation arm body 51 is linearly abutted on and away from the projection 37 of the abutting plate portion 36 of the spring rake body 31 based on the earth pressure from the field H during the scraping operation. A contact receiving surface 54 is formed. The protrusion 37 of the spring rake body 31 slides along the contact receiving surface 54 by the rotation of the spring rake body 31 and the first leveling body 11. At this time, the set rotation arm body 51 rotates about the rotation shaft 23 in conjunction with the first leveling body 11. In addition, the other structural member of the agricultural machine 1 shown in FIG. 5 and FIG. 6 is basically the same as the structural member of the agricultural machine 1 shown in FIG.
[0048]
In the agricultural machine 1 shown in FIGS. 5 and 6, the embedded depth a of the spring rake body 31 is set to the tillage body 3 by the contact between the spring rake body 31 and the setting rotation arm body 51 of the rake setting means 41. Therefore, when the tillage depth b is deep as shown in FIG. 5, for example, when the tillage depth b is deep, the embedding depth a is also deep, and when the tillage depth is as shown in FIG. When the depth b is shallow, the embedding depth a also becomes shallow, so that an appropriate embedding operation can be performed, and therefore, the work efficiency can be improved, and the removal of trapped impurities can be facilitated. The effect similar to the agricultural machine 1 shown can be show | played.
[0049]
Further, as shown in FIGS. 7 and 8, for example, the agricultural working machine 1 rotates the operation portion 60 that protrudes above the leveling body 25, that is, the first leveling body 11, with the embedded depth a of the spring rake body 31. It can also be set as the structure which can be adjusted by operation.
[0050]
The rake setting means 41 of the agricultural machine 1 shown in FIGS. 7 and 8 has a movable setting lever body (movable contact body) 61 that is an operation lever integrally formed in a hook shape, and this movable setting lever body. 61 is rotatably attached to the leveling body 25, that is, the first leveling body 11 via a rotation shaft 62 in the left-right direction.
[0051]
One end side of the movable setting lever body 61 protrudes upward from the main body plate portion of the first leveling body 11, and this protruding portion serves as the operation portion 60. In addition, a plurality of, for example, two upper and lower holes 63 and 64 are formed on the other end side of the movable setting lever body 61.
[0052]
In FIG. 7, fixing is performed to the hole 63 above the movable setting lever body 61 and the hole (not shown) of the fixed setting body (fixed contact body) 65 fixed to the first leveling body 11. The pin 66 is inserted, and the movable setting lever body 61 is in the normal state. In the state shown in FIG. 7, the spring rake body is applied to the substantially arc-shaped contact receiving surface 67 formed on the lower surface on the other end side of the movable setting lever body 61 based on the earth pressure from the field H side during the cutting operation. The protrusions 37 of the 31 abutting plate portions 36 abut on and away from each other.
[0053]
Further, in FIG. 8, the fixing pin 66 is inserted into the hole 64 below the movable setting lever body 61 and the hole (not shown) of the fixed setting body 65 fixed to the first leveling body 11. The movable setting lever body 61 is in the retracted state, that is, the state in which the embedding action is small. In the state shown in FIG. 8, the spring rake body 31 is applied to the substantially linear contact receiving surface 68 formed on the lower surface of the fixed setting body 65 on the basis of the earth pressure from the field H during the cutting operation. The protrusions 37 of the contact plate part 36 abut on and away from each other.
[0054]
The movable setting lever body 61 is rotatably attached to the fixed setting body 65 via a rotation shaft 62. Moreover, the other structural members of the agricultural machine 1 shown in FIGS. 7 and 8 are basically the same as the structural members of the agricultural machine 1 shown in FIG. 1 and the like.
[0055]
7 and 8, the embedded depth a of the spring rake body 31 is set by the contact between the spring rake body 31 and the movable setting lever body 61 in the normal state of the rake setting means 41. Since it changes according to the change in the tillage depth b of the tillage body 3, the embedding depth a is also deep when the tillage depth b is deep as in the roughing period, and the tillage depth b is shallow as in the finishing period. Sometimes the embedding depth a is also shallow, so that an appropriate embedding work can be performed, and therefore, the work efficiency can be improved and the removal of trapped impurities can be facilitated. The same operational effects can be achieved.
[0056]
Moreover, according to this farm work machine 1, the embedding depth a of the spring rake body 31 can be easily adjusted by operating the operation unit 60 of the movable setting lever body 61, and can appropriately cope with the soil quality of the field. That is, for example, in the case of a field where the soil mass is hard, the movable setting lever body 61 is switched to the retracted state, and the embedding depth a is made extremely shallow, so that the spring rake body 31 and other impurities such as rice straw together with the soil mass. It is possible to appropriately prevent problems such as pulling the wire.
[0057]
On the other hand, the agricultural machine 1 connects, for example, the spring rake body 31 and the first leveling body 11 with a connecting means (for example, two connecting links) so that mutual rotation is interlocked. The embedded depth a of the body 31 may be changed in accordance with the change in the tillage depth b of the tillage body 3.
[0058]
Further, the farm work machine 1 may be configured such that, for example, the spring rake body 31 is not suspended by its own weight when lifted up by a three-point link mechanism of the tractor.
[0059]
【The invention's effect】
According to the invention 請 Motomeko 1, by the contact of the spring rake body and the rake setting means, since the embedding depth of the spring rake member is changed in accordance with the tilling depth changes in tillage member, for example, tilling depth When the depth is deeper, the embedding depth becomes deeper, and when the tillage depth is shallower, the embedding depth becomes shallower, so that an appropriate embedding operation can be performed.
[0060]
According to invention of Claim 2 , the embedding depth of a spring rake body can be easily adjusted by operation of an operation part, and can respond appropriately to the soil quality etc. of a farm field.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of an agricultural machine according to the present invention.
FIG. 2 is a side view of the agricultural working machine in the rough generation.
FIG. 3 is a side view of the farm work machine when finishing.
FIG. 4 is a side view of the agricultural work machine when lifted up.
FIG. 5 is a side view at the time of rough generation showing another embodiment of the agricultural machine according to the present invention.
FIG. 6 is a side view of the agricultural machine according to the present invention when finishing.
FIG. 7 is a side view at the time of rough generation showing still another embodiment of the agricultural working machine of the present invention.
FIG. 8 is a side view showing a state where the movable setting lever body of the agricultural working machine is switched to a retracted state.
[Explanation of symbols]
1 Farming Machine 3 Tillage Body 6 Cover Body
11 First leveling body
22 Second leveling body
25 Leveling body
31 Spring rake body
41 Rake setting method
60 Operation section H1 Field surface

Claims (2)

A plowing body for plowing,
A cover body covering the top of the tillage body;
A first leveling body which is attached to the rear end portion of the cover body and which can turn up and down;
A second leveling body that is attached to the rear end of the first leveling body and that is capable of rotating up and down;
Attached to the rear end of the cover body, is positioned between the tillage body and the first and second leveling bodies, and can be rotated up and down to embed the impurities in the soil under the field surface. Spring rake body,
A farm working machine comprising: a rake setting unit that abuts on and separates from the spring rake body, and changes an embedding depth of the spring rake body according to a change in a tilling depth of the tillage body. Embedment depth of the spring rake body agricultural machine according to claim 1 Symbol mounting, characterized in that it is adjustable by the operation of the operation unit.

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