JP3432025B2 - Tillage equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilling apparatus for pulling a tilling rotary working machine for tilling by a tractor. 2. Description of the Related Art Conventionally, a tilling rotary working machine is mounted on a rear side of a tractor so as to be able to ascend and descend, and the cultivating work is performed by the rotary working machine. It was desired to finish the work early. [0003] According to the prior art, the running efficiency can be improved by increasing the running speed. However, when the running speed is increased, the tillage load of the working machine increases. Therefore, it was necessary to use a large tractor with a large output. [0004] Accordingly, the present invention provides a plurality of rotary pawls on a tilling pawl shaft which is laid substantially horizontally.
While tilling by inverting the soil, the tilling provided substantially in parallel with the preprocessing gripper shaft on the front side of the gripper shaft, a plurality of pretreatment pawl tilling shallower than the rotary pawl pretreatment gripper shaft, the blade fulcrum shaft
The base end of the pretreatment claw is rotatably supported on the holder via
And the pretreatment claw is rotated by the centrifugal force due to the rotation of the pretreatment claw shaft.
Structured so that it stands in the radial direction about the pretreatment claw axis
Tilling equipment, a triangular flat cutting edge
Fixed to the tip, the arm and cutting blade are inverted T-shaped in rear view
Connected, and approximately bisect the triangular cutting edge in plan view
The arm section to the rear of the arm section and the back of the cutting blade.
A blade is formed on two sides, and the triangle apex angle of the cutting blade on the rear side of the arm
The cutting blade is pierced into the soil, with the rice plant and miscellaneous
The soil at the root of the grass is shaved with a cutting blade, and after the root cutting operation of cutting the soil on the surface of the field with the pre-treatment nail, the rotary nail is used to perform the tilling operation of cultivating the soil to a predetermined depth. Tilling work can be performed by the same work process as the traditional manual work that is divided into digging work and tilling work that reverses and crushes the soil to the depth of the tillage. By having the function, the tillage load by each claw can be easily reduced. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is a side view of a pretreatment claw portion, FIG. 2 is a side view of the whole, FIG. 3 is a plan view of the same, and FIG. 4 is a side view of a tilling rotary working machine portion. In the figure, reference numeral (1) denotes a tractor, which is provided with left and right front running wheels (4) and (4) on both sides of a hood (3) in which an engine (2) is installed, and a steering handle at the rear of the hood (3). (5), a driver's seat (6) is installed behind the steering wheel (5), and left and right rear traveling wheels (7) and (7) are installed on both sides of the driver's seat (6). (6) The left and right brake pedals (9) and (9) and the clutch pedal (10) are arranged in the front step (8).
The operator is configured to travel while sitting on the driver's seat (6). A tilling rotary working machine (1) is mounted on a transmission case (11) for driving the running wheels (4) and (7) via a lower link (12) and a top link (13).
4), and the work implement (14) is mounted on the rear side of the tractor (1) so as to be able to move up and down freely.
5), a position control lever (16) for raising and lowering the work machine (14) by manual operation, and a lifting switch (17) for raising and lowering the work machine (14) to a non-work raising position and a tilling work lowering position by one-touch operation. ) Is arranged on the right side of the driver's seat (6), and the traveling auxiliary shift lever (18) and the PTO shift lever (19) for changing the output to the work implement (14) are connected to the driver's seat (6). Place it on the left. Further, as shown in FIGS. 4 to 7, a gear box (20) is arranged at the center of the work machine (14).
Power is transmitted from the PTO shaft (21) of the tractor (1), and beams (22) protrude from both sides of the gear box (20), and a support plate (23) is provided on each halfway of the beam (22). A lower link (12) is connected to a front end of the support plate (23), and a front end of a depth frame (24) is pivotally supported at a rear end of the support plate (23). Left and right tail wheels (25) (25) are provided on the rear end side. The front ends of the front and rear chain cases (26) and (27) and the front and rear side supports (2)
8) (29) The upper part is fixed and the rear chain case (27)
A cultivating claw shaft (30) is suspended between the lower portion and the lower portion of the rear side support (29), and a large number of rotary claws (31) composed of nata claws are radially planted on the cultivating claw shaft (30) in a side view. At the same time, the upper part of the rotation trajectory of the rotary pawl (31) is covered by a rotary cover (32), and both sides are covered by side covers (33). The tiller shaft (30) is driven via a gear in the gear box (20), a transmission shaft in the beam (22), a sprocket and a chain in the chain case (27), and the rotary claws (31) ... The till is made possible by rotating the. Further, a first rear cover (35) made of a steel plate is connected to the rear end of the rotary cover (32) above the rotary pawl (31) via a first fulcrum shaft (34) so as to be vertically swingable. The front end of the second rubber rear cover (36) is fixed to the rear end of the first rear cover (35), and the leveling space (3
The front end of the third rear cover (38) made of steel is fixed to the rear end of the second rear cover (36) forming 7), and the second fulcrum shaft (39) at the rear end of the first rear cover (35) and the third rear cover (38). 38) The third fulcrum shaft (40) at the front end is connected by a pair of left and right links (41) (41), and the fourth fulcrum shaft (42) is provided substantially coaxially with the third fulcrum shaft (40).
The lower end of the first suspension rod (43) is connected to the fourth fulcrum shaft (42), and a pair of left and right second suspension rods (45) is connected to the fifth fulcrum shaft (44) at the rear end of the third rear cover (38). The lower ends are connected, and the upper ends of the first and second suspension rods (43) and (45) are attached to the support (46) of the first rear cover (35) so as to be able to move up and down. And a third rear cover (38) to form a triangle in side view, and second, third and fifth fulcrum axes (39) (40) (44).
Are formed by a line connecting the third fulcrum shaft (39) or the third fulcrum shaft (40), and the third rear cover (38) is moved upward around the second fulcrum shaft (39).
9) and suspension rods (43) (45) of the support (46)
The third rear cover (the forward movement of which is restricted by the downward projection of each rod (43) (45) by the operation of the lever mechanism of the cover (38) and each rod (43) (45) with the connecting portion as a fulcrum. 38) is moved rearward and upward to perform a floating operation in which both side portions of the third rear cover (38) move back and forth in plan view. In addition, the fifth fulcrum shaft (4
A pair of left and right gas dampers (47) are connected between the support member (4) and the first rear cover (35), so that a substantially constant spring constant can be obtained for the entire stroke and the gas damper (47) can have a large stroke. ) To support the third rear cover (38), so that even if the tractor (1) is tilted left and right, the tilling surface can be leveled by pressing the third rear cover (38) right and left equally. The upper ends of the suspension rods (43) and (45) are loosely inserted into the bearings (48) of the supports (46) so that the pins contact the upper surfaces of the bearings (48). (4
9) are implanted in the rods (43) and (45) to prevent the rods (43) and (45) from being pulled out downward, restrict the forward movement of the third rear cover (38), and set the springs (50) and (45). 50) and a pair of right and left rods (5
1) (51) The lower end is connected to the upper surface of the first rear cover (35), and the upper end of the rod (51) is connected to the rotary cover (3).
The first rear cover (35) is slidably mounted on the support (52) of (2), and is configured to be elastically pressed downward by a spring (50). A rake support (53) is detachably fixed on the upper surface of the third rear cover (38), and a rake (54) fixed to the support (53) extends rearward of the third rear cover (38). As shown in FIG. 6, the support (46) to which the upper end of the second suspension rod (45) is attached.
The upper end of the gas damper (47) is connected to the shaft (55), and the second suspension rod (45) and the gas damper (47) are provided as close to each other as possible and substantially parallel to each other. At the end, a pair of left and right tail wheels (25) and (25) is attached via a support frame (56).
5) The rake (54) is disposed between (25). The tail wheel (25) prevents the rake (54) from colliding with a ridge or the like at the time of headland turning, and also allows the vehicle to travel on the road or The tail wheel (25) is also used as a bumper on the left and right outer sides in a maintenance work or the like when lifted upward. Further, a first fulcrum shaft (34) is attached at a position substantially equal to or higher than the upper end of the rotation locus of the rotary claw (31), and a rear cover is provided around the first fulcrum shaft (34) during tilling work. As the (35), (36), and (38) are raised, a large area equalizing space (37) is formed below the rear covers (35), (36), and (38) behind the rotation trajectory of the rotary claw (31). Rear cover (35) (3
6) The soil pushed forward by (38) is the rotary claw (3).
1) Prevents reaching the soil jumping part and prevents the increase of the tilling load of the rotary claw (31) due to the tilling work at high speed. During the tilling work, the rotary claw (31) is pulled out to the ground. The rear covers (35), (36), and (38) are lifted and arranged by cultivated soil on an arc line having a radius centered on the point (A) where the rotary claw (31) has a radius of about 50% or more of the area of the rotation locus of the rotary claw (31). Uniform space of size (37)
To the rear of the rotary claw (31) rotation trajectory and the rear cover (3
5) A small object such as a fine or light soil mass formed between (36) and (38) is scattered to a high position on the lower surface of the rotary covers (35) and (36) by the rotary claws (31), and a large or heavy earth mass is formed. Alternatively, a large object such as a stump (rice plant) is scattered to a lower position by the rotary claw (31), and a small object becomes an upper layer and a large object becomes a lower layer by a specific gravity separation action by the scattering of the rotary claw (31).
The upper small items are leveled by the rear covers (36) and (38), and the large ones are pushed down further by the rear rake (54). Therefore, the large-sized material maintains good air permeability and water permeability inside the cultivated soil, and the cultivated soil surface layer is formed by the small-sized material in a state suitable for sowing or seedling transplantation. Further, four rotary claws (31) are arranged on the same circumference around the cultivating claw shaft (30) at intervals of 90 degrees.
, And the tip side of each rotary claw (31) is alternately bent in the left-right direction, and four rows and one row of rotary claws (31) are arranged on a plane orthogonal to the cultivation claw axis (31). ) A plurality of rows are provided in the axis direction, and a gap is provided between the tip trajectories of the rotary claws (31) (31) opposed to each other in the left-right direction. Double the size of the rotary claw (3
1) (31) The rotary claw (31) is formed such that the base end interval is about five times as large as the tip end track gap. The rotary claw (31) is bent into a shape of scooping after cutting off the soil, and a force for pushing and moving the soil in the horizontal direction by the horizontal component force of the curved tip portion of the rotary claw (31) and the rotary claw (31). The scooping soil is extruded in the lateral direction substantially parallel to the axis of the tilling claw shaft (30) by the repulsive force of the elastic deformation in the lateral direction,
Left and right rotary pawls (31) (31) A structure that breaks the soil at the part of the tip trajectory gap where residual plowing occurs and prevents the formation of residual plowing.
Percent of the rotary pawls (31) are attached, the rotational speed of the rotary pawls (31) is made substantially the same as the conventional rotational speed (about 200 to 400 rotations per minute), and the traveling speed of the tractor (1) is reduced. Running speed (approximately 0.5
M), so that the tilling work can be performed with a work efficiency of about twice without increasing the tillage load as compared with the conventional method. Further, as shown in FIGS. 1, 5, 8, and 9, the pretreatment is carried out substantially in parallel with the front side of the tilling claw shaft (30) through a front chain case (26) and a front side support (28). A claw shaft (57) is provided and the rotary claw (3
A plurality of pretreatment claws (58), which are tilled shallower than 1), are provided on the pretreatment claw shaft (57), and the roots of rice plants (59) or weeds (60) in the field are cut by the pretreatment claw (58). The pre-processing claw shaft (57) has a square cylindrical holder (6
1) is fixed by welding, and the arm portion (6) of the pre-processing claw (58) is fixed.
2) The base is inserted into the holder (61) and fixed by bolts (63), and a cutting blade (64) formed of a triangular plate-shaped steel plate is welded and fixed to the tip of the arm (62). ) And the cutting edge (64) are inverted T in rear view (FIG. 8).
The arm (62) is fixed at a position where the triangular cutting blade (64) is approximately bisected in plan view (FIG. 9). Then, the back surface of the arm (62) and the cutting blade (6)
4) Blades (62a) (64a) (64b) on two sides facing backward
With the triangular vertex of the cutting edge (64) on the rear side of the arm (62) at the head, the cutting edge (64) is inserted into the soil, and the rice plant (59) and the weed (60) in the field The soil at the root portion of the root is scraped by the cutting blade (64), and the trace of the rice plant (59) and the weed (60) cut by the cutting blade (64) is tilled to a predetermined depth by the rotary claw (31). It is configured as follows. As is apparent from the above description, the soil in the shallow part of the field is shaved by the pre-treatment claw (58) and then plowed to the depth of the cultivation by the rotary claw (31). By providing the pre-processing claw (58) with the function of scooping and inverting soil by the rotary claw (31), the soil to be scooped and inverted by the rotary claw (31) is changed by the roots of rice plants or weeds. As compared with the case where the plow is connected to the untilled portion (conventional), the tilling load of the rotary claw (31) can be reduced, and the pre-treatment claw (58) only cuts the soil. It is possible to drive the pre-processing claw (58) with a driving force smaller than the amount of reduction in the force, and the total of the tillage load of the pre-processing claw (58) and the rotary claw (31) having the dedicated function is reduced to the conventional value. Tillage load of rotary claw only ( When working with the same tillage width as before, use a low output tractor (1) or lower the engine (2) rotation of the tractor (1). It is possible to reduce fuel consumption and to increase the traveling speed even further, and when working at the same traveling speed with the same tractor (1) as before, attach a work machine (14) with a larger tillage width than before. Thus, it is possible to improve the tilling work efficiency of one stroke (per unit time). Further, as shown in FIG. 10, a pawl fulcrum shaft (65) is fixedly fastened to a pair of square fulcrum plate-shaped holders (61) by bolts (63), and the front fulcrum shaft (65) is fixed via the pawl fulcrum shaft (65). The base end of the processing claw (58) is rotatably supported by the holder (61), and the preprocessing claw (58) is centered on the preprocessing claw shaft (57) by centrifugal force due to the rotation of the preprocessing claw shaft (57). It can be configured to stand in the radial direction. As is apparent from the above embodiments, the present invention provides a plurality of rotary pawls (31) on a tilling pawl shaft (30) which is laid substantially horizontally, and turns the soil to turn the tilling. to and co
A pretreatment claw shaft (57) is provided substantially parallel to the front side of the tillage claw shaft (30), and a plurality of pretreatment claws (58) tilling shallower than the rotary claw (31) are attached to the pretreatment claw shaft (57). 57), and the base end of the pretreatment claw (58) via the claw fulcrum shaft (65).
Part is rotatably supported by the holder (61), and the pre-processing claw shaft
Pretreatment nail (58) by centrifugal force by rotation of (57)
Stands in the radial direction about the pretreatment claw axis (57)
Triangular plate-shaped cutting blade
(64) is fixed to the tip of the arm (62),
(62) and cutting blade (64) are connected in an inverted T-shape in rear view.
And divide the triangular cutting edge (64) into approximately two parts in plan view
The arm (62) is fixed at the position, and the arm (62)
Of the blade (62a) (6
2a) and (62b) are formed, and the rear side of the arm (62) is cut.
With the triangular vertex of the blade (64) at the top, the cutting blade (64)
Of rice (59) and weed (60) in the field
The soil at the root portion is shaved by the cutting blade (64), and after the root cutting operation to cut the soil on the surface of the field by the pre-treatment claw (58), the tillage operation of cultivating the soil to a predetermined depth by the rotary claw (31) is performed. The tillage work can be performed by the same work process as the traditional manual work, which is divided into the work of cutting and digging the rice plant or grass root and the work of reversing and crushing the soil to the depth of the tillage. It is possible to easily reduce the tillage load of each of the claws (31) and (58) by providing the pre-treatment claw (58) and the rotary claw (31) with dedicated functions.

[Brief description of the drawings] FIG. 1 is a side view of a pretreatment claw portion. FIG. 2 is an overall side view. FIG. 3 is a plan view of the same. FIG. 4 is a side view of a rotary tilling machine. FIG. 5 is a side view of a rotary claw portion. FIG. 6 is a plan view of a rear cover. FIG. 7 is a rear view of the rotary claw portion. FIG. 8 is a rear view of the pretreatment nail. FIG. 9 is a plan view of the same. FIG. 10 is a rear view showing a modification of FIG. 8; [Explanation of symbols] (30) Tilling claw shaft (31) Rotary claw (57) Pretreatment claw shaft (58) Pretreatment nail

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Tomitsu Takahashi               1-32 Chayamachi, Kita-ku, Osaka Yanmade               In diesel corporation (72) Inventor Takashi Hirano               1-32 Chayamachi, Kita-ku, Osaka Yanmade               In diesel corporation                (56) References JP-A-52-6601 (JP, A)                 JP-A-60-105401 (JP, A)                 50-88401 (JP, U)                 50-155201 (JP, U)                 Jiko 29-12708 (JP, Y1)

Claims (1)

(57) [Claims 1] A plurality of rotary claws (31) are provided on a tilling claw shaft (30), which is laid substantially horizontally, and the soil is turned upside down for tilling , and the cultivating claws are cultivated. A pretreatment claw shaft (57) is provided substantially parallel to the front side of the shaft (30), and a plurality of pretreatment claws (58) tilling shallower than the rotary claw (31) are provided on the pretreatment claw shaft (57); Pretreatment nail via nail fulcrum shaft (65)
(58) The base end is rotatably supported on the holder (61).
And the pre-treatment claw shaft (57) is rotated by centrifugal force to rotate the claw shaft (57).
The processing claw (58) is radiated around the preprocessing claw axis (57).
In a tillage device that is configured to stand in the direction
Shaped flat cutting edge (64) fixed to the tip of the arm (62)
Arm (62) and cutting blade (64) in reverse T
And a triangular cutting edge (64) in plan view.
Fix the arm (62) at a position where the arm
Blades on the back of the rubber part (62) and on the two rear sides of the cutting blade (64)
(62a), (62a) and (62b) are formed, and an arm portion is formed.
(62) With the apex of the triangle of the rear cutting edge (64) at the top,
The cutting blade (64) is pushed into the soil, and the rice plant (59) and
The soil at the root of the weeds (60) with a cutting blade (64)
Tillage device characterized by taking .