JP3432929B2 - Tilling rotary work machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilling rotary operation in which the traveling speed of a traveling vehicle during tilling operation is increased to shorten the tilling operation time by the tilling rotary. About the machine. 2. Description of the Related Art In such a tilling operation at a high speed running, a tilling operation with a proper crushed soil and a low remaining tilling that maintains a predetermined tilling pitch by maintaining a constant running speed is performed. Squeezed. [0003] However, when the ground speed, which is the actual running speed, changes greatly with the running speed, which is the rotation speed of the wheels, depending on the condition of the soil, the tilling pitch also becomes large. There was a problem that proper tilling work was not performed due to the change. [0004] Means for Solving the Problems] Accordingly, the present invention is vertically movably fitted with tilling rotary to vehicle, the pre-Symbol tillage rotary to adjustment ring for supporting freely tilling depth adjustment, of the adjustment ring the rotation sensor for detecting a rotational provided, along with detecting the ground speed of the work machine based on the detected value of the rotation sensor,
The tilling pitch is calculated based on the ground speed, and the
Tillage that controls the rotation of the tillage rotary to maintain the switch
In a rotary working machine, a support in front of a beam of the working machine is provided.
Fix the mounting plate on the holding rod and cut it
Attach the blade, curve the middle of the cutting blade backward, view from the side
In the middle of the cutting blade at the front of the rotating claw locus of the tilling claw
It is arranged so as to overlap and the support
Tip of the wheel holder fixed to the rod so that the horizontal position can be adjusted freely
The adjusting wheel is supported by adjusting the supporting height via the adjusting bolt
One which is shall improve the working efficiency by a large margin. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is an explanatory view of the operation of the tilling rotary working machine, FIG. 2 is an overall side view, FIG. 3 is a plan view of the same, FIG. 4 is a side explanatory view of the tilling rotary working machine, and FIG. 5 is a floating explanatory view of the rear cover. In the figure, reference numeral (1) denotes a tractor which is a traveling vehicle having front and rear wheels (2) and (3). It is configured to change. (6
a) is the main transmission lever, (6b) is the sub transmission lever, (6)
c) is a PTO shift lever. The tractor (1) has a lower link (7).
Tilling rotary work machine through side drive (8)
The gearbox (9) is arranged in the center, and the PTO shaft (10) of the tractor (1) is connected via the drive shaft (10a) with universal joint.
Is connected to the input shaft (9a) to transmit power. Beams (11) protrude from both sides of the gear box (9), and a support plate (12) is fixedly provided in the middle of each of the beams (11), and a lower link is provided at a front end of the support plate (12). A pin for pivoting (7) is protruded, the front end of the depth frame (13) is pivotally supported at the rear end, and the top link (15) is pivoted at the front end of the mast (14). . As shown in FIG. 6, an upper part of a transmission case (16) is fixedly provided at an outer end of the beam (11), and a tilling claw shaft (17) is horizontally mounted on a lower part of the transmission case (16). A large number of tilling nails (18) consisting of slash nails on the tilling nail axis (17) ...
Are radially implanted in a side view, and the tilling claws (1
The upper part of the rotation locus of 8) is covered with a rotary cover (19), and both sides are covered with side covers (20). And the tilling claw shaft (17) is a gear box (9)
, The transmission shaft in the beam (11), the transmission case (1)
6) Driven via the continuously variable transmission mechanism in
Tillage is performed by rotating ... As shown in FIGS. 7 and 8, a first plate (21a) is fixed in front of the beam (11), and a second plate (21) is provided at the front end of the plate (21a).
b), the supporting rod (22) is laid horizontally, and the supporting rod (2) is
2) Attach the mounting plate (23) to the mounting plate (23), and attach the top of the cutting blade (24) to the mounting plate (23) with the bolt (23a).
Four are installed in the left-right width direction via. In addition, the intermediate portion (24a) of the cutting blade (24) is curved backward, and this intermediate portion (24a) faces the front portion of the rotating claw locus (L) of the tilling claw (18), and the lower portion than the middle portion The tip side is inclined forward to provide a receding angle (α). That is, the intermediate portion (24a) of the cutting blade (24) is arranged so as to overlap the front portion of the rotating claw locus (L) of the tilling claw (18) in a side view, and the cutting blade (24) and the tilling claw are arranged. The interval of (18) is reduced so that residual cultivation cannot be performed, and the working machine (8) is lifted by the tilling resistance during the tilling operation by the underground rush action of the cutting blade (24). Restrained. However, the cutting blade (2
The number of attachments in 4) is not limited, and may be appropriately spaced so as not to cause tillage resistance. A first rear cover (26) made of a steel plate is connected to the rear end of the rotary cover (19) on the upper side of the tilling claw (18) via a first fulcrum shaft (25) so as to be vertically swingable. 1 The front end of a second rear cover (27) made of an elastic material such as synthetic resin or rubber is fixed to the rear end of the rear cover (26), and the front end of the third steel rear cover (28) is fixed to the rear end of the second rear cover (27). A second fulcrum shaft (29) at the rear end of the first rear cover (26) and a third fulcrum shaft (30) at the front end of the third rear cover (28) are connected by a pair of left and right links (31) (31); Third fulcrum axis (3
0), a fourth fulcrum shaft (32) is provided substantially coaxially, and the lower end of the first suspension rod (33) is connected to the fourth fulcrum shaft (32);
The lower ends of a pair of left and right second suspension rods (35) are connected to the fifth fulcrum shaft (34) at the rear end of the third rear cover (28), and the first and second support rods (36) of the first rear cover (26) are connected to the first and second support rods (36). Second
The upper ends of the suspension rods (33) and (35) are attached so as to be able to move up and down, and the suspension rods (33) and (35) and the third rear cover (28) form a triangle in side view. A side view triangle is formed by a line connecting the five fulcrum shafts (29), (30) and (34), and the third rear cover (28) is centered on the second fulcrum shaft (29) or the third fulcrum shaft (30). Is moved upward in the directions of the arrows (A) and (B), and the cover (28) having the second fulcrum shaft (29) and the suspension rod (33) (35) connecting portion of the support (36) as a fulcrum. And the third rear cover (28) whose forward movement is restricted by the downward projection of each rod (33) (35) by the operation of the leverage mechanism of each rod (33) (35) in the direction of arrow (C). Move it upward, as shown in FIG.
A floating operation is performed in which both sides of the rear cover (28) move back and forth in the direction of arrow (D) in plan view. Also,
A pair of left and right gas dampers (3) having a substantially constant pressure between the fifth fulcrum shaft (34) and the support (36) of the first rear cover (26).
7), the third rear cover (28) is supported by a gas damper (37) which can provide a substantially constant spring constant and a large stroke for the entire stroke, so that the tractor (1) can be tilted left and right. The tilling surface can be leveled by pressing the third rear cover (28) equally to the left and right. The upper ends of the suspension rods (33) and (35) are loosely inserted into the bearings (38) of the supports (36) so that the rods come into contact with the upper surfaces of the bearings (38). (3
3) The pins (35) prevent the rods (33) and (35) from being pulled out downward, and prevent the third rear cover (28) from moving in the direction opposite to the arrows (A), (B) and (C). The lower ends of the pair of right and left rods (40) and (40) around which the springs (39) and (39) are wound are connected to the first rear cover (2).
6) The upper end of the rod (40) is slidably attached to the support (41) of the rotary cover (19), and the first rear cover (26) is pressed by a spring (39). are doing. A rake support (42) is detachably fixed on the upper surface of the third rear cover (28), and a rake (43) fixed to the support (42) extends rearward of the third rear cover (28). Let me out. Further, as shown in FIG. 5, the shaft (44) of the support (36) to which the upper end of the second suspension rod (35) is attached.
The upper end of the gas damper (37) is connected to the second suspension rod (35), and the second suspension rod (35) and the gas damper (37) are provided as nearly parallel as possible. Also, the rear covers (26) and (27)
(28) One first suspension rod (3
3), the left and right rods (40) and (40) are disposed on the left and right sides of the first suspension rod (33), and the left and right rods (40) and (40) are further disposed on the left and right outer sides. 2
The suspension rod (35) and the gas damper (37) are arranged, and the left and right links (31) and (31) are arranged further left and right outside of the second suspension rod (35) and the gas damper (37). The left and right ends of the three rear covers (26) and (27) are connected by left and right links (31) and (31). As shown in FIG. 6, the tilling claw shaft (17)
The left and right eccentric claws (47) for expanding the cultivation width are attached to both ends of the cultivator, and the tilling claws (18) are attached in a multi-row manner at substantially equal intervals between the left and right eccentric claws (45). 17)
4 in one row of the outer circumference (on the same cross section circumference of the claw shaft (17))
The book holders (46) are projected in the radial direction at 90 ° intervals, and the holders (46) are equipped with tillage claws (18) made of naginata-shaped claws. The tip of the tilling nail (18) is alternately curved right or left to turn the soil after cutting, and the bending direction of the tilling nail (18) at the 180 ° opposing position is changed to the right or left. Two of them are attached to the holder (46) in a row in a row so as to be the same. As shown in FIGS. 7 to 9, opposed tilling claws (18) (18) mounted on the left and right holders (48).
The base interval (T) is set to a large interval of 5, while the interval (t), which is the gap of the tip claw trajectory (L), is set to approximately 1 (T: t ：).
5: 1). In this embodiment, when the turning radius a is about 245 mm, the base interval (T) is 200 mm, and the tip claw trajectory (L) interval (t) is about 40 mm. By opening the gap, the base interval (T) is increased, and the number of tilling claws (18) is reduced, so that the required power is reduced, and the remaining power during tilling with the same power is increased. It is configured to enable high-speed tilling by turning. That is, the tilling claw (18) has a large bending width (b) (b ≒ 80 mm) by cutting the soil and then scooping it and bending the tip from the middle to the side. 18a) is formed into an easily deformable elastic claw, and when the tilling claw (18) is driven into the soil, the horizontal component force of the bending portion (18a) pushes the soil in a curved lateral direction, and the tilling claw ( 18) by pushing the scooped soil in a lateral direction substantially parallel to the cultivating claw axis (17) shown by the arrow in FIG. 9 by the lateral repulsion force when the soil is elastically deformed in the anti-curvature direction by the resistance load of the soil. Then, the soil portion remaining as the remaining tillage between the tip trajectories (L) of the opposing left and right tillage claws (18) is crushed to effectively prevent the formation of the remaining tillage. . Also, in this case, when the claw (18) rotates to the vicinity of the cutting point and the resistance load of the soil becomes small, the soil portion remaining as residual tillage is crushed from the lateral direction by the restoration elastic force due to the elastic deformation at the time of driving the claw (18). Thus, the crushing effect is further improved, and the cut soil itself is also given a strain force by an elastic return force to crush the soil into soft, soft soil. In other words, it is possible to reduce the required power by making it possible to perform an operation that does not leave residual tillage with a minimum claw configuration while tilling in a state where residual tillage remains. As described above, by setting the number of the tilling claws (18) of the rotary work machine (7) to, for example, about 70% as compared with the conventional rotary work machine, a high-speed tilling in which the traveling speed is doubled as compared with the conventional rotary work machine is also possible. Is what makes it possible. As shown in FIGS. 7 and 8, the cutting blade (24)
A partition plate (47) having a substantially triangular shape is disposed between the rear part of the rotary blade and the rotary cover (19). The partition plate (47) is fixed to the back surface of the cutting blade (24). And the inside of the cover (19) so as to minimize the distance between them,
It is provided so as to prevent the straw or weeds from entering between the partition plate (47) and the cover (19), and the side on the rear side is formed into an arc-shaped blade to guide the straw and the like downward, It is configured to perform cutting at the same time. In addition, the width (plate thickness) (H) of the partition plate (47) is formed slightly smaller (H <h) than the blade width (h) of the cutting blade (24), and straw, weeds, and the like are cut by the cutting blade (24). ) So as to enable good cutting. As shown in FIGS. 1, 3, 4, and 10, an adjusting wheel for supporting a tilling rotary (48) comprising a tilling claw shaft (17) and a tilling claw (18). Are disposed on the left and right sides at the front of the rotary (48).
2) Wheel holder (5)
The wheel frame (52) of the gauge wheel (49) is freely adjustable at the tip of 0) via an adjustment bolt (51).
And a ground speed sensor (53) which is a wheel rotation sensor for detecting the rotation speed of the gauge wheel (49).
Is provided at one end of the wheel shaft (54) to detect the ground speed of the working machine (8) based on the detection of the rotation speed of the gauge wheel (49). Further, as shown in FIG. 11, a pair of bevel gears (55) (56) are provided on the input shaft (9a) of the gearbox (9) for inputting the driving force from the transmission case (54) of the tractor (1). ) Through the left beam (1
1) The transmission shaft (57) inserted through the inside is interlocked and connected, and the transmission shaft (57) is connected to the tilling claw shaft (17) by the shift V pulleys (58) (59) and the shift V Belt type continuously variable transmission mechanism (6
It is provided so that the rotation speed of the tilling claw shaft (17) can be changed freely by interlocking connection via 1). As shown in FIG. 12, the ground speed sensor (53), a tilling claw shaft rotation sensor (62) connected to one end of the tilling claw shaft (17), and a standard tilling by the tilling claw (18). A tilling pitch setting device (63) for setting a pitch (P1) is connected to a controller (64), and a controller (64) is connected to the continuously variable transmission mechanism (61).
And the speed and rotation sensors (53) (6)
Based on the detection of 2), the continuously variable transmission mechanism (61) is configured to perform a speed change operation to maintain the reference tilling pitch (P1). The present embodiment is constructed as described above. Conventionally, for example, when the number of pawls per rotation of the pawl shaft (17) is one, the rotational speed of the pawl shaft is approximately 170 rpm, and the vehicle speed is 0.5 m / s. The operation performed in (1) is performed by setting the number of claws per one rotation of the claw shaft (17) to two, the rotation speed of the claw shaft is approximately 170 rpm, and the vehicle speed is 1
The operation is performed under a working condition of about 1.5 m / s, and the traveling speed is increased to about twice or more the conventional speed, and the working efficiency is greatly improved. When the running speed is increased, the traction resistance of the rotary working machine (8) is increased as the running speed is increased. A phenomenon is caused to cause the work machine (8) to float, but the downward force when moving the cutting blade (24) having a receding angle to enter the soil, and the cutting blade (24) The force that presses the side against the soil with the cutting blade (2
The lifting of the work machine (8) is prevented as the pull-out resistance force of (4). Further, as shown in FIG. 7, the point of entry of the cutting blade (18) into the soil is overlapped so that the point of entry of the cutting blade (24) into the soil substantially coincides with the point of entry of the tilling nail (18) in a side view. The soil is cut by the cutting blade (24) when cutting the soil, and the cut soil is easily tilled by the tilling claws (18) to reduce the load in the tilling work.
It is possible to eliminate cutting of weeds and the like entangled with the nail (18) and prevent growth of weeds and the like in the soil. During such high-speed tilling work, the speed sensor (53) is used to measure the ground speed (V) of the working machine (8), and the rotation sensor (62) is used to measure the claw shaft (17).
Tilling pitch (P) P = (V / NZ) × K (where K: constant, Z = 2)
(The number of claws)), the tilling pitch (P) in the current operation is calculated, and when the calculated tilling pitch (P) is larger or smaller than the set reference pitch (P1), the continuously variable transmission mechanism ( 61) With this, the rotation of the claw shaft (17) is controlled to increase or decrease to perform a high-precision tilling operation while always maintaining the reference pitch (P1). FIG. 14 shows the operation of the continuously variable transmission (61) using the input shaft (65a) of the chain case (65) for driving the conventional pawl shaft (17) and the driving force from the PTO shaft (10). An input V-pulley (58) is attached to the input shaft (66), and a pulley shaft (59) of the output V-pulley (59) is provided between the input shaft (66) for input to the machine (8). 59a) and the input shaft (65a) with a pair of bevel gears (55) and (56) interposed therebetween, and a chain case (6).
The configuration is such that the rotation of the claw shaft (17) is changed and controlled at the preceding stage of 5). FIG. 15 shows an example of a configuration in which rotation control of the rotation of the tilling claw shaft (17) is performed by a hydraulic continuously variable transmission (HST) (67). The variable displacement pump of the transmission (67) is shown. (68) is connected to the input shaft (66), and the constant discharge motor (69) is connected to the input side gear shaft (55a) of the bevel gears (55) and (56). The tilling pitch (P) is configured to be kept substantially constant by control. Note that the claw shaft (1
The motor (49) may be directly connected to 7). FIG. 16 shows an example of a configuration in which the rotation control of the tilling claw shaft (17) is controlled by controlling the flow rate of a hydraulic motor (70), and includes a pair of fixed displacement hydraulic pumps (71) connected to a pipe. The hydraulic motor (70) is connected to the input shaft (6
6) and the hook shaft (17), and the hydraulic motor (70)
The tilling pitch (P) is maintained substantially constant by controlling the flow rate. In the above embodiment, the ground speed is detected from the rotation speed of the gauge wheel (49). However, the rear wheel provided at the rear of the work machine (8) or the ground speed detection provided separately is provided. Any dedicated grounding wheel may be used. [0031] As can be appreciated the present invention from the above examples according to the present invention is equipped with vertically movable tilling rotary (48) to the vehicle (1), prior to modulation Symbol tillage rotary (48) of the tilling depth the adjustment ring (49) which rotatably supports a rotation sensor (53) provided for detecting the rotation of said adjustment ring (49), ground of the rotation sensor (53) of the detection value based on work machine (8) Detects speed and calculates tilling pitch based on ground speed
Tillage to maintain a predetermined tillage pitch (P1).
Tillage rotary work machine that controls the rotation of the rotary (48)
And a support rod in front of the beam (11) of the working machine (8).
(22), fix the mounting plate (23),
Attach the cutting blade (24) to the rate (23), and
Curve the middle of (24) backward and cut in side view
Rotation of the tilling claw (18) at the middle part (24a) of the blade (24)
Positioned so as to overlap at the front of the nail locus (L)
And the left and right positions can be freely adjusted by the support rod (22).
At the tip of the fixed foil holder (50), adjust bolt
An adjusting wheel (49) is supported so that the supporting height can be adjusted freely via (51).
To perform tilling work with high accuracy.
Yellow, it is those that can Rukoto to improve the work efficiency by a large margin. [0032]

[Brief description of the drawings] FIG. 1 is a work explanatory view of a tilling rotary working machine. FIG. 2 is an overall side view. FIG. 3 is an overall plan view. FIG. 4 is an explanatory side view of the tilling rotary working machine. FIG. 5 is an explanatory plan view of a rear cover portion. FIG. 6 is an explanatory rear view of a tillage rotary unit. FIG. 7 is an explanatory side view of a tilling rotary unit. FIG. 8 is an explanatory front view of a tilling rotary unit. FIG. 9 is an explanatory rear view of the tilling nail portion. FIG. 10 is an explanatory front view of a gauge wheel unit. FIG. 11 is an explanatory diagram of a drive system of a tilling rotary. FIG. 12 is a control circuit diagram. FIG. 13 is a flowchart. FIG. 14 is an explanatory diagram of a drive system of a tilling rotary. FIG. 15 is an explanatory diagram of a drive system of a tilling rotary. FIG. 16 is an explanatory diagram of a drive system of a tilling rotary. [Explanation of symbols] (1) Tractor (traveling vehicle) (8) Working machine (48) Rotary tillage (49) Gauge wheel (adjustable wheel) (53) Ground speed sensor (rotation sensor) (P1) Tilling pitch

Continuing on the front page (72) Inventor Takushi Shika 1-1-1 Ishiba, Matsumoto-shi, Nagano Prefecture Inside the Matsumoto Plant of Shima Shibaura Machinery Co., Ltd. (72) Inventor Akihiko Kitabayashi 1-1-1, Ishiba, Matsumoto-shi, Nagano Prefecture No. 1 Ishikawa Shima Shibaura Machinery Co., Ltd. Matsumoto Factory (72) Inventor Akihiko Maezawa 1-1-1 Ishiba, Matsumoto City, Nagano Prefecture Ishikawa Shima Shibaura Machinery Co., Ltd. Matsumoto Factory (72) Inventor Shinkichi Fujisawa 1-1-1, Ishiba, Matsumoto-shi, Nagano Prefecture Shima-Shibaura Machinery Co., Ltd. Matsumoto Factory (72) Inventor Masahiko Miyamoto 1-1-1, Ishiba, Matsumoto-shi, Nagano Prefecture Matsushima Factory, Shima-Shibaura Machinery Co., Ltd. 72) Inventor Kimihiro Koshi 1-1-1 Ishiba, Matsumoto City, Nagano Prefecture Inside the Matsumoto Factory of Shimaura Ishikawa Machinery Co., Ltd. (56) References JP-A-63-258509 (JP, A) JP-A-57-187004 ( JP, U) Japanese Utility Model Hei 5-38568 (JP, U) Japanese Utility Model Hei 2-120121 (JP, U) Japanese Utility Model Hei 4-12806 (JP, U) (58) Survey Field (Int.Cl. ^7, DB name) A01B 49/02 A01B 33/08 A01B 63/16

Claims (1)

(57) regulating wheel equipped with Patent Claims 1. A vertically movable tilling rotary in vehicle (1) (48), for supporting front Symbol tillage rotary (48) to adjustably tilling depth (49) The adjustment wheel (4
9) The rotation sensor for detecting (53) the rotation is provided for, while detecting the ground speed of the rotation sensor (53) of the detection value Based on work machine (8), tilling peak based on the ground speed
To maintain the predetermined tilling pitch (P1)
Rotary that controls the rotation of the rotary (48)
In the working machine, before the beam (11) of the working machine (8)
Fix the mounting plate (23) to the supporting rod (22).
And a cutting blade (24) is attached to the mounting plate (23).
And curve the middle of the cutting blade (24) backward,
The middle part (24a) of the cutting blade (24)
8) Overlap at the front of the rotating claw locus (L)
And the support rod (22)
At the tip of the adjustable foil holder (50),
Adjustable wheel with adjustable support height via adjusting bolt (51)
A tilling rotary working machine characterized by supporting (49) .