JP2004065197A - Rotary tiller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotary tiller having a device to treat a large amount of long culms of rice straws on the surface of a paddy field. <P>SOLUTION: This rotary tiller 1 is provided with a tilling rotor UR or, DR of up-cut or down-cut style rotatably supported between the lower end of a transmission case 4 and the lower end of a support frame 5. A plurality of coulters 15 are placed in front of the tilling rotor UR, DR in a vertically adjustable manner. The coulter 15 is rotated on its axis by the force generated by the soil according to the traveling motion of the rotary tiller 1 or forcibly rotated with an engine. The distance between the coulters 15 is adjustable. Coulters 15S at both ends among the plurality of coulters 15 are positioned in front of the transmission case 4 and the support frame 5 when the tilling rotor is up-cut style UR or inner side of the transmission case 4 and the support frame 5 when the rotor is down-cut style DR. A guide plate 24 is placed under the front side of the transmission case 4 and under the front side of the support frame 5. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
According to the present invention, a plurality of vertically adjustable coulters are provided in front of an up-cut or down-cut type tilling rotor, and a guide plate is provided at a lower front side of a transmission case that supports the tilling rotor and a support frame. The present invention relates to an installed rotary tillage device.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a rotary tilling device that supports an up-cut or down-cut tilling rotor between a lower end portion of a transmission case and a lower end portion of a support frame is well known. With such a rotary tilling device, when cultivating a field after harvesting rice or performing fertilizing and sowing work simultaneously with tilling, a large amount of long culm (waste culm) of rice and wheat on the surface of the field may interfere with tilling work. Therefore, the long culm of rice and wheat is collected and incinerated (burned).
[0003]
[Problems to be solved by the invention]
As described above, when cultivating a field after harvesting rice with a conventional rotary tilling apparatus, a large amount of long culm (waste culm) of rice and wheat on the surface of the field is collected and incinerated in advance, so that long culm is required. Not only does it require a lot of labor and time to collect the garbage, but also the incineration of the culm causes smoke damage, which is a social problem.
[0004]
The present invention has been made in order to solve the above-mentioned problems, and even when a long culm of rice and wheat has a large amount on the surface of a field to be plowed by a rotary tillage device, this is collected and removed or incinerated. It is an object of the present invention to provide a rotary tillage device capable of performing tillage work without performing tillage.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is characterized by having the following configurations (claims 1 to 5).
A. In a rotary tilling device that supports an up-cut or down-cut type tilling rotor between a lower end of a transmission case and a lower end of a support frame,
In front of the tillage rotor, a plurality of coulters that can be adjusted up and down were arranged.
[0006]
B. When the rotary tilling apparatus moves, the coulter rotates on its own due to resistance in contact with the soil, or forcibly rotates by power.
C. The interval between the plurality of coulters is adjustable.
[0007]
D. Both ends of the plurality of coulters were arranged in front of the transmission case and the support frame when the tilling rotor was up-cut, and inside the transmission case and the support frame when the tilling rotor was down-cut.
E. FIG. A guide plate is provided on a lower front side of the transmission case and a lower front side of the support frame.
[0008]
[Action]
With the above configuration, the rotary tillage device of the present invention performs the following operations.
a. By arranging a plurality of coulters that can be adjusted up and down in front of the tilling rotor, even if there are many long culms of rice and wheat on the surface of the field to be cultivated, this can be cut short with a plurality of coulters. Or, it is buried by being pushed into the soil, and an appropriate tilling operation is performed by the tilling rotor. Further, the labor for collecting a large amount of long culm of rice and wheat can be omitted, and smoke damage due to incineration of long culm can be prevented.
[0009]
b. When the rotary tilling device moves, the coulter rotates on its own due to the resistance that comes into contact with the soil, or is forcibly driven and rotated by power, so that the long culm of rice and wheat grows on the surface of the field to be tilled by the rotary tilling device. However, this is cut short with a coulter or buried by pushing it into the soil.
c. By configuring the mutual interval of multiple coulters to be adjustable, the interval of the coulters is adjusted according to the amount and length of long culm of rice and wheat on the surface of the field to be plowed by the rotary tillage device, and suitable Cutting processing is performed.
[0010]
d. When the tilling rotor is up-cut, the coulters at both ends are arranged in front of the transmission case and the support frame when the tilling rotor is up-cut, and are arranged inside the transmission case and the support frame when the tilling rotor is down-cut. Even if there is a large amount of long culm of rice and wheat on the surface of the field to be plowed, a large amount of long culm is cut by the coulter at the front side of the transmission case and the support frame according to each type of up-cut and down-cut. It is processed and stable tillage work is performed.
e. By arranging a guide plate on the lower front side of the transmission case and the lower front side of the support frame, even if there are a large amount of rice and wheat long culm on the surface of the field to be plowed by the rotary plow, It is cut and guided by the guide plate to the lower side of the transmission case and the support frame, and is buried without clogging the lower part of the transmission case and the support frame.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be specifically described with reference to the accompanying drawings.
1 and 2, reference numeral 1 denotes a rotary tilling device according to a first embodiment of the present invention. The rotary tilling device 1 is provided with a gear box 3 at a longitudinally central portion of a main body frame 2 extending in the left-right direction. The transmission frame 2a and the support frame 2b extend from the gear box 3 to both sides. A chain transmission case 4 is attached to the side end of the transmission frame 2a, and a support frame 5 is attached to the side end of the support frame 2b, with the upper end thereof fixed to the lower end. 5 and a lower end portion of the same, an up-cut tilling rotor UR is pivotally supported. The upper part of the tilling rotor UR is covered by a shield cover 6 supported by the main body frame 2, and a front end of an apron 7 is pivotally supported by a rear end of the shield cover 6 so as to be vertically rotatable. Further, the front end of the leveling plate 8 is pivotally supported on the rear end of the apron 7 so as to be vertically rotatable, and extended leveling plates 8a are provided at both left and right ends of the leveling plate 8 so as to be able to be turned up and down. . Compression rods 9, 9 are interposed between the upper surface of the apron 7 and the main body frame 2.
[0012]
A support pipe 10 having a square shape in side view is supported diagonally forward and downward from the main body frame 2 in parallel with the main body frame 2, and the support pipe 10 is provided with a pair of left and right support holders 11. A support arm 12 is fitted into the support holder 11 so as to be vertically adjustable, and a pivot support 13 is attached to a lower end of the support arm 12. A rotation having a length equal to the length of the rotary plow 1 is mounted on the support 13. The shaft 14 is supported. Six coulters 15 are arranged at equal intervals on the rotating shaft 14 in front of the tilling rotor UR, and each of the coulters 15 is moved in the axial direction with respect to the rotating shaft 14 by the mounting portion 15a. And the distance between the coulters 15 can be adjusted. The coulter 15 of this embodiment is designed to rotate on its own due to the ground resistance in contact with the soil when the rotary tilling apparatus 1 moves, but it may be forcedly rotated by power. When the tilling rotor is an up-cut UR, the coulters 15S are disposed in front of the transmission case 4 and the support frame 5 as shown in FIG. In the case of DR, it is arranged inside the transmission case 4 and the support frame 5.
[0013]
Reference numeral 16 denotes a rotary tilling device from an unillustrated tractor on which the rotary tilling device 1 is mounted to an input shaft (see FIG. 5) protruding forward from the gear box 3 via a PTO shaft, a universal joint, and a transmission shaft. 1 is a transmission device for automatically connecting and transmitting power by an operation of mounting the vehicle 1 on a tractor. The release operation of the power transmission by the transmission device 16 and the automatic connection standby operation are performed by the transmission operation lever 17. A pair of left and right lower link connecting portions 2c, 2c protrude forward from the main body frame 2, and are automatically connected to the lower link connecting portions 2c, 2c via an auto hitch coupler 18. The auto hitch coupler 18 is provided with a top link connecting portion 19 and a top mast engaging hook 20 on an upper portion, and a lower link connecting pin 22 on both lower sides, and the auto hitch coupler 18 is mounted on a three-point link hitch of a tractor. When the top mast engaging hook 20 is engaged with the top mast 21 of the rotary plow 1 and the rotary plow 1 is lifted by hydraulic pressure, both lower sides of the auto hitch coupler 18 are automatically connected to the lower link connecting pins 22, and the rotary The tillage device 1 is mounted on the rear of the tractor so as to be able to move up and down.
[0014]
The left and right sides of the shield cover 6 and the apron 7 are covered with side covers 23. The lower part of the front cover of the side covers 23 and the lower front side of the transmission case 4 and the support frame 5 are used to mount the rotary A guide plate 24 is provided to guide the rice and wheat culm on the surface of the field to the lower side of the transmission case 4 or the support frame 5 as the process proceeds. A pair of left and right working machine connecting frames 25 are supported so as to be vertically rotatable around the distal end pivotal support part a toward the rear from the main body frame 2, and the working machine connecting frames 25, 25 are connected by a connecting rod 26. An up / down adjustment device 27 is interposed between the lengthwise intermediate portion of the rod 26 and the main body frame 2. The working machine connecting frames 25, 25 are detachable by inserting connecting rods 31, 31 of another fertilizer / seeding machine 30 as another working machine shown in FIG. 5 from the rear end side.
[0015]
The rotary tilling apparatus 1 of the second embodiment according to the present invention shown in FIGS. 3 and 4 is different from the rotary tilling apparatus 1 of the first embodiment of FIGS. 1 and 2 in that the tilling rotor is changed from an up-cut type UR to a down-cut type. This is the same configuration as the rotary tilling apparatus 1 of the first embodiment, except that the tilling rotor DR is changed and the arrangement of the coulter 15 with respect to the tilling rotor is changed. That is, the coulter 15 in the rotary tilling apparatus 1 of the second embodiment is configured such that four coulters 15 are arranged at equal intervals on the rotating shaft 14 in front of the cultivating rotor DR. The portion 15a can be moved and fixed in the axial direction with respect to the rotating shaft 14, and the distance between the coulters 15 can be adjusted. As shown in FIG. 4, 15S of both ends of the four coulters 15 are disposed inside the transmission case 4 and the support frame 5 of the tilling rotor DR.
[0016]
The rotary tilling device 1 of the first embodiment and the second embodiment can be used alone for normal tilling work. However, as shown in FIG. The seeding machine 30 can also be mounted via the connecting rod 31 and used as a combined working machine.
[0017]
The fertilizer / seeding machine 30 has a pair of left and right connecting rods 31 protruding forward from the machine body. The connecting rods 31, 31 are fitted to and mounted on the working machine connecting frames 25, 25 of the rotary tilling apparatus 1. By rotating the vertical adjusting device 27, the fertilizer / seeding machine 30 can adjust the vertical movement with respect to the rotary tilling device 1. At the front end of the main frame 34 of the fertilizer / seeding machine 30, a vertical adjusting mechanism 32 and a front / rear angle adjusting mechanism 33 are provided, and the vertical height and the front / back angle of the fertilizing / seeding machine 30 can be adjusted. A support frame 34a having a square shape in a side view is supported on the main body frame 34 so as to extend in the left-right direction, and a plurality of (two in this embodiment) fertilization / seeding units can be adjusted to move in the left-right direction on the support frame 34a. Installed. In each fertilizer application / seeding unit, a fertilizer hopper 35 and a seed hopper 36 are provided integrally in front and rear, and fertilizer and seeds are fed by a fertilizer feeding roll 35a and a seed feeding roll 36a that are pivotally supported at the bottoms of both hoppers 35 and 36.
[0018]
Behind the hoppers 35 and 36, the upper end is pivotally supported with respect to a support frame 34a, and is supported by a compression rod 38a. The rotation power obtained by pivotally supporting the wheel 37 and rotating the ground drive wheel 37 in contact with the field and moving the machine body is transmitted through the chain transmission case 38 to the rotation center of the fertilizer delivery roll 35a. And transmitted to a rotating shaft 38b extending in parallel with the support frame 34a. The fertilizer feeding roll 35a is slidable left and right with respect to the rotating shaft 38b in a transmission state, and rotational power is transmitted from the fertilizer feeding roll 35a to the seed feeding roll 36a via a gear transmission mechanism (not shown). The fertilizer fed from the fertilizer feeding roll 35a is guided and fertilized by the fertilizer chute 35b, and the seed fed from the seed feeding roll 36a is guided and seeded by the seed chute 36b. The fertilizer shoot 35b and the seed shoot 36b are shifted left and right, and the fertilization position and the seeding position are shifted left and right.
[0019]
Below the fertilizer feeding roll 35a and the seed feeding roll 36a, a swing frame 39 whose front end is supported by a pair of upper and lower parallel links 40 and a balancing spring 41 is provided so as to be able to swing up and down. The space between the swing frame 39 and the lower part of the fertilizer feeding roll 35a and the seed feeding roll 36a is covered with a bellows-shaped waterproof cover. The swing frame 39 is provided with an open-groove disk 42 composed of two disks, a covering ring 43, and a pressure-reducing roller 44 in order from the front. A gate-shaped support frame 45 is fixed to the rear ends of the connecting rods 31, 31, and pressure-reducing / forming groove rollers 46, 47 are supported between the lower ends of the support frame 45. The pressure reducing / forming groove rollers 46 and 47 are provided with an abacus ball-shaped groove forming roller 47 at a central position in the longitudinal direction of the pressure reducing roller 46. The pressure-reducing / grooving rollers 46 and 47 may be rotated by ground resistance when the body moves, or may be forcibly rotated by power. The connecting rods 31, 31 and the support frame 45 (compression / grooving rollers 46, 47) are detachable from the main frame 34 via the hitch fitting 31a.
[0020]
Next, the operation of the rotary tilling apparatus 1 and the fertilizer / seeding machine 30 having such a configuration will be described.
The rotary tilling device 1 and the fertilizer / seeder 30 connect the front of the rotary tilling device 1 to the rear of the tractor so as to be able to move up and down. In the rotary tilling device 1, the power is received from the tractor to the gear box 3 and the tilling rotor UR Alternatively, the tilling work is performed by rotating the DR in a predetermined direction. In the fertilizer / seeding machine 30, the fertilizer / seeding operation is performed on the field scene tilled by the rotary tilling device 1 while moving together with the rotary tilling device 1.
[0021]
In the rotary tilling apparatus 1, even if a long culm of rice and wheat is abundant on the surface of the field to be tilled, the cultivation rotor is cut short by a plurality of coulters 15 or pushed into the soil to be buried. Appropriate tilling work is performed by UR or DR. In addition, 15S of both ends of the plurality of coulters 15 are located in front of the transmission case 4 and the support frame 5 when the tilling rotor is the up-cut UR, and inside the transmission case 4 and the support frame 5 when the down-cut DR is used. Even if there are many long culms of rice and wheat on the surface of the field to be plowed by the rotary tillage device 1 according to the respective forms of the up-cut UR and the down-cut DR, the transmission case is provided. The long culm of rice and wheat is cut off by the coulter 15 at the front side of the support frame 4 and the support frame 5, and a stable tilling operation is performed. Furthermore, since the guide plate 24 is disposed on the lower front side of the transmission case 5 and the lower front side of the support frame 5, the straw stem cut by the coulter 15 is moved by the guide plate 24 to the lower side of the transmission case 4 and the support frame 5. To prevent the long straw stem from clogging the lower part of the transmission case 4 and the support frame 5.
[0022]
Moreover, even if there are a large amount of long stalks of rice and wheat on the surface of the field to be plowed by the rotary tillage device 1, this is cut short by the coulter 15 and then plowed by the plowing rotor UR or DR. Alternatively, the straw stem is prevented from wrapping around the rotation axis of the DR or the mounting base of the tilling nail. The soil tilled by the tilling rotor UR or DR is crushed and leveled by the shield cover 6, the apron 7, the leveling plate 8, etc., but since the long straw culm is cut by the coulter 15, the soil of the straw culm is removed. The fertilizer / seeder 30 can accurately perform the fertilizer / seeding operation without exposing many straw stems on the soil surface.
[0023]
In the fertilizer / seeding machine 30, the crushing, leveling and leveling by the rotary tilling device 1 are performed by the rotary tilling device 1 by the crushing / grooving rollers 46 and 47 provided in the front of the machine body. A drainage groove or a groove serving as a mark for management work after fertilization / seeding is formed by a groove forming roller 47 at an intermediate position between the two fertilizing / seeding units. Then, the seeding groove is opened by the groove disk 42 in the field scene where the pressure is reduced by the pressure-reducing roller 46, and the seed shoot 36b is sown in the seeding groove. Fertilizer chute 35b is applied to the side of the seeding position. The sown seeds and the fertilized fertilizer are covered with a soil covering wheel 43 and then crushed by a pressure reduction roller 44. If there is unevenness in the field scene at the time of such groove-opening operation by the groove-opening disk 42, earth-covering operation by the earth-covering wheel 43, and pressure-reducing operation by the pressure-reducing roller 44, the swing frame is moved via the parallel link 40 and the balance spring 41. 39 swings up and down to follow the unevenness of the field and perform a stable operation.
[0024]
【The invention's effect】
As described above, the rotary tillage device according to the present invention has the following functions and effects by providing the configuration according to claims 1 to 5.
▲ 1 ▼. Since a plurality of coulters that can be adjusted up and down are arranged in front of the tillage rotor, even if there are a large amount of long culm of rice and wheat on the surface of the field to be plowed, this is cut short with a plurality of coulters, Alternatively, the soil can be pushed into the soil and buried, and the appropriate tillage work can be performed by the tillage rotor. Further, the labor for collecting a large amount of long culm of rice and wheat can be omitted, and smoke damage due to incineration of long culm can be prevented.
[0025]
▲ 2 ▼. The coulter is rotated by the resistance that comes into contact with the soil when the rotary tilling device moves, or is forcibly driven and rotated by power.Therefore, there are many long culms of rice and wheat on the surface of the field to be tilled by the rotary tilling device. This can be cut short by a coulter or buried by pushing it into the soil.
(3). Since the mutual interval between the plurality of coulters is configured to be adjustable, the interval between the coulters is adjusted according to the amount and length of long culm of rice and wheat on the surface of the field to be plowed by the rotary tillage device, and Cutting and burial processing can be performed.
[0026]
▲ 4 ▼. When the tilling rotor is up-cut, the coulters at both ends are arranged in front of the transmission case and the support frame when the tilling rotor is up-cut, and inside the transmission case and the support frame when the tilling rotor is down-cut. Even if there are a lot of long culms of rice and wheat on the surface of the field to be plowed, a lot of long culms are cut by a coulter at the front side of the transmission case and the support frame according to each type of up-cut and down-cut. Treated and stable tillage work can be performed.
▲ 5 ▼. Since the guide plate is arranged on the lower front side of the transmission case and the lower front side of the support frame, even if there are many long culms of rice and wheat on the surface of the field to be plowed by the rotary plow, this is cut by the coulter. The guide plate guides the lower part of the transmission case and the support frame to the underside of the transmission case and the support frame so that the lower part of the transmission case and the support frame can be buried without being clogged.
[Brief description of the drawings]
FIG. 1 is a side view of a rotary tillage device (upcut) according to a first embodiment of the present invention.
FIG. 2 is a plan view of the same.
FIG. 3 is a side view of a rotary tilling apparatus (down cut) according to a second embodiment of the present invention.
FIG. 4 is a plan view of the same.
FIG. 5 is a side view of a combined working machine in which a fertilizer / seeder according to the present invention is connected to a rotary tillage device according to a second embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rotary cultivator 2 Main frame 2a Transmission frame 2b Support frame 2c Lower link connection part 3 Gear box 4 Chain transmission case 5 Support frame UR Upcut cultivation rotor DR Downcut cultivation rotor 6 Shield cover 7 Apron 8 Leveling plate 9, 38a Compression Rod 10 Support pipe 11 Support holder 12 Support arm 13 Shaft support 14 Rotating shaft 15 Coulter 15a Mounting portion 15S Coulters 16 at both ends Transmission device 17 Transmission operation lever 18 Auto hitch coupler 19 Top link connecting portion 20 Top mast engaging hook 21 Top mast 22 Lower link connecting pin 23 Side cover 24 Guide plate 25 Work implement connecting frame 26 Connecting rod 27 Vertical adjusting device 30 Fertilizer / seeder 31 Connecting rod 32 Vertical adjusting mechanism 33 Front and rear angle Joint mechanism 34 Body frame 34a Support frame 35 Fertilizer hopper 35a Fertilizer feeding roll 35b Fertilizer chute 36 Seed hopper 36a Seed feeding roll 36b Seed chute 37 Ground drive wheel 38 Chain transmission case 38b Rotating shaft 39 Swing frame 40 Parallel link 41 Balance spring 42 Open groove disk 43 Covering ring 44 Pressure reduction roller 45 Support frame 46 Pressure reduction roller 47 Groove roller

Claims (5)

In a rotary tilling device that supports an up-cut or down-cut type tilling rotor between a lower end of a transmission case and a lower end of a support frame,
A rotary tilling device, wherein a plurality of vertically adjustable coulters are arranged in front of the tilling rotor. The rotary tilling apparatus according to claim 1, wherein the coulter is rotated by a resistance in contact with soil when the rotary tilling apparatus moves, or is forcibly driven and rotated by power. The rotary tilling device according to claim 1 or 2, wherein the plurality of coulters are configured to be adjustable in mutual interval. In the above-described plurality of coulters, both ends are arranged in front of the transmission case and the support frame when the tilling rotor is up-cut, and inside the transmission case and the support frame when the tilling rotor is down-cut, respectively. The rotary tillage device according to claim 1, wherein The rotary tilling device according to claim 1, wherein a guide plate is provided on a lower front side of the transmission case and a lower front side of the support frame.

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