JP2002330601A - Rotary tillage device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary tillage device of a partial normal and reverse rotation type responsive to a difference in field conditions such as hardness of the field or the amount of grasses or straws and capable of performing stabilized tillage. SOLUTION: This rotary tillage device is obtained by mounting tillage tines for both uses of normal and reverse rotations on both of a first tine shaft cylinder and a second tine shaft cylinder and composing two systems of transmission systems in a tillage transmission mechanism in the tillage transmission mechanism so as to enable changeover of the directions of rotations of the transmission systems with a normal and reverse rotation changeover mechanism so that the changeover from a first tillage state in which the first tine shaft cylinder is normally rotated and the second tine shaft cylinder is reversibly rotated to a second tillage state in which the first tine shaft cylinder is reversibly rotated and the second tine shaft cylinder is normally rotated can be carried out in the partial reverse rotation type rotary tillage device capable of rotating and driving the first tine shaft cylinder and the second tine shaft cylinder of a rotary tine shaft cylinder composed of the first tine shaft cylinder arranged in a lateral side part of a tillage transmission case and the second tine shaft cylinder concentrically arranged in the transverse lateral part in the shaft center direction of the first tine shaft cylinder in the mutual opposite directions with the tillage transmission mechanism equipped with the two systems of the transmission systems having different directions of rotations.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a rotary claw shaft cylinder provided laterally below a tilling transmission case and a first claw shaft tube disposed on a lateral side of the tilling transmission case. A first pawl shaft cylinder, a second pawl shaft cylinder, and a second pawl shaft cylinder which are concentrically disposed on the lateral side of the first pawl shaft cylinder in the axial direction. The present invention relates to a rotary tilling device of a partial reversal type, in which a tilling transmission mechanism having two transmission systems having different rotation directions rotates in opposite directions.

[0002]

2. Description of the Related Art A partial reversing system in which a first claw shaft cylinder and a second claw shaft cylinder arranged side by side in the axial direction are rotationally driven in opposite directions by a tilling transmission mechanism having two transmission systems having different rotation directions. There is known a rotary tillage device (for example, Japanese Patent Publication No. Sho-46).
JP-A-39041, Japanese Utility Model Laid-Open No. 5-1 and JP-A-Hei 5-
No. 56703).

[0003]

In the rotary tilling apparatus of the partial reversal type as described above, the tilling reaction force of the cultivating claws mounted on the first and second claw shaft cylinders rotating oppositely to each other. Although it can be expected that the dashing of the aircraft is suppressed by the offsetting action, the conventional one could not cope with the differences in the field conditions where the work was performed, such as the hardness of the field and the amount of grass, etc. Has a problem that it is difficult to perform stable tillage. SUMMARY OF THE INVENTION An object of the present invention is to provide a partially reversing rotary tilling apparatus capable of performing stable tilling even when there are differences in field conditions such as the hardness of soil and the number of grasses.

[0004]

In order to achieve the above object, a partial forward / reverse type rotary device according to the first aspect of the present invention is mounted horizontally below a tilling transmission case (1). B
The first claw shaft cylinder is disposed concentrically on the lateral side of the tillage transmission case (1) and the first claw shaft cylinder (2) and the first claw shaft cylinder (2) in the axial direction. And a second pawl shaft cylinder (4), wherein the first pawl shaft cylinder (2) and the second pawl shaft cylinder (4) of the rotary pawl cylinder are rotated in two different directions. In a rotary tilling device of a partial reversal type, which is driven to rotate in opposite directions by a tilling transmission mechanism having a system (A) and (B), the first and second claw shaft cylinders are provided.
(4) Both forward and reverse tilling claws (25) and (24) are attached, and two transmission systems (A) in the tilling transmission mechanism.
The rotation direction of (B) can be switched by a forward / reverse switching mechanism (C) so that the first pawl shaft cylinder (2) rotates forward and the second pawl shaft cylinder
(4) can be switched between a first tilling state in which it reverses and a second tilling state in which the first claw barrel (2) rotates in the reverse direction and the second claw barrel (4) rotates in the forward direction. And

Further, in the rotary device of the partial forward / reverse type according to the second aspect, the rotary claw shaft cylinder horizontally mounted on the lower part of the tilling transmission case (1) is mounted on the tilling transmission case (1). ), A first claw shaft tube (2) disposed on the side of the side and a second claw shaft tube (4) disposed concentrically on the lateral side of the first claw shaft tube (2) in the axial direction. The tilling transmission provided with two transmission systems (A) and (B) having different rotation directions from the first claw shaft cylinder (2) and the second claw shaft cylinder (4) of the rotary claw shaft cylinder. In a rotary tilling apparatus of a partial reverse rotation type, which is driven to rotate in directions opposite to each other by a mechanism, the second claw shaft cylinder (4) is moved to a first position.
The forward and reverse cultivating claws (25) are formed longer than the claw shaft cylinder (2), and are formed on both the first claw shaft cylinder (2) and the long second claw shaft cylinder (4).
(24) Attach, and 2 in the tillage transmission mechanism
Forward / reverse switching mechanism (C) for changing the direction of rotation of the power transmission system (A) (B) of the system
A first tilling state in which the first claw shaft cylinder (2) rotates forward and the second claw shaft cylinder (4) rotates in reverse,
It is characterized in that the dash suppressing force is made different from the second tilling state in which the claw shaft cylinder (2) rotates in the reverse direction and the second claw shaft cylinder (4) rotates in the normal direction.

According to a third aspect of the present invention, there is provided a rotary device of a partial forward / reverse type, wherein a rotary claw shaft cylinder mounted laterally below a tilling transmission case (1) is mounted on a tilling transmission case (1). ), A first claw shaft tube (2) disposed on the side of the side and a second claw shaft tube (4) disposed concentrically on the lateral side of the first claw shaft tube (2) in the axial direction. The tilling transmission provided with two transmission systems (A) and (B) having different rotation directions from the first claw shaft cylinder (2) and the second claw shaft cylinder (4) of the rotary claw shaft cylinder. In a rotary tilling device of a partial reversal type, which is driven to rotate in opposite directions by a mechanism, a second claw shaft tube (4) is formed to be longer than a first claw shaft tube (2) to form a first claw. Both forward and reverse tilling claws (25) and (24) having the same rotation diameter are attached to both the shaft cylinder (2) and the long second claw shaft cylinder (4), and two transmission systems ( A) The rotation direction of (B) can be switched by the forward / reverse switching mechanism (C). In the first tilling state in which the first claw shaft tube (2) rotates forward and the second claw shaft tube (4) rotates in reverse, the first claw shaft tube (2) rotates in reverse and the second claw shaft tube (4) is characterized in that the dash deterrent is different from that in the second tilling state in which the rotation is normal.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIGS. 1 to 3 show a rotary tilling apparatus for a center drive type cultivator having a residual cultivation claw shaft cylinder. 4 shows a configured example.

1 to 3, the cultivator has an engine (6) mounted on a frame extending from a transmission case (5), and the power of the engine (6) is transmitted to the transmission case.
(5) The right and left wheels (7) which are transmitted to the axle supported at the lower part of the transmission case (5) via the transmission mechanism in (5) and fitted to the axle.
(7) is configured to be driven by rotation. The driving operation is performed on the handle of the steering handle (8) extending backward from the mission case (5), and is performed at the rear of the mission case (5) and on the steering handle (8). A rotary tillage device is installed below.

[0009] The rotary tillage device is a mission case.
A tillage transmission case (1) connected to (5), a tillage frame (9) such as a tillage cover, and a tillage depth setting device (10) installed at the rear end of the tillage frame (9). ), Etc., at the lower part of the tilling transmission case (1), a first claw shaft tube (2) arranged on the side of the tilling transmission case (1) and the first claw shaft tube A rotary pawl barrel, which comprises a second pawl barrel (4) concentrically disposed on the lateral side in the axial direction of (2), is supported horizontally so as to be rotatable.

And a second pawl barrel (4) of the rotary pawl barrel.
Is driven by the second transmission system (A) of the tilling transmission mechanism interlocked with the transmission mechanism in the transmission case (5), and by the first claw shaft cylinder.
(2) is driven by the first transmission system (B) of the tilling transmission mechanism so that the second claw shaft tube (4) and the first claw shaft tube (2) are rotationally driven in directions opposite to each other. Has become.

The second claw shaft cylinder (4) of the rotary claw shaft cylinder
Is formed longer than the first claw shaft tube (2) in comparison with the first claw shaft tube (2) arranged on the side of the tilling transmission case (1);
Both forward and reverse tilling claw mounted on the long second claw shaft cylinder (4)
(24) The tillage width of the group is set to be larger than the sum of the tillage widths of the forward and reverse tilling claws (25) mounted on the first claw shaft cylinder (2) (particularly, , FIG. 4). In addition, the forward and reverse bidirectional tilling claw (2) mounted on the second claw shaft cylinder (4).
The forward and reverse tilling claw (25) mounted on the first claw shaft cylinder (2) has the same rotation diameter as shown in FIG.

The first pawl shaft barrel (2) of the rotary pawl shaft barrel and the first transmission system (B) for driving the pawl shaft barrel (2) to rotate, and the same pawl as the second pawl shaft barrel (4). A specific configuration example of the second transmission system (A) that rotationally drives the barrel (4) is shown in FIGS. Figure 2
In FIG. 3, from the support cylinders (23) and (23) through the center of the support cylinders (23) and (23) provided on the lower left and right sides of the tilling transmission case (1). Rotating shaft extending outward
(3) is supported by bearings in a horizontal and horizontal direction perpendicular to the body traveling direction, and the first claw shaft cylinders (2) and (2) are provided on the inclined outer diameter portions of the left and right support cylinder parts (23) and (23). Each of the rotation shafts (3), which are rotatably provided and extend outward from the left and right support cylinders (23) and (23), is provided with a lower portion than the first claw shaft cylinders (2) and (2). The long second claw shaft cylinders (4) and (4) are detachably fitted and fixed respectively.

The second transmission system (A) for rotatingly driving the second claw shaft cylinders (4) (4) is wedge-fitted to the rotation shaft (3) in the tilling transmission case (1). Upper shaft (11) mounted laterally on the upper part of passive sprocket (21) and tilling transmission case (1)
And a chain transmission mechanism (13) in which a chain (22) is wound around an upper sprocket (20) provided in the vehicle.

The first transmission system (B) for rotating and driving the first claw shaft cylinders (2) and (2) is constructed as follows. That is, a sprocket (27) is wedge-attached to an intermediate rotating shaft (26) parallel to the rotating shaft (3), and the sprocket (27) is wound inside the winding of the chain (22) of the second transmission system (A). In the chain (22)
At the left and right sides of the sprocket (27) and the gear (28) on the intermediate rotation shaft (26).
(28) is fitted and fixed, and each of the gears (28) and (28) is rotatably fitted on the rotating shaft (3), and is rotatably fitted on the supporting cylinder (23) (23). The driven gears (29) (29) provided are always in mesh with each other, and the gears (30) (30) formed at the outer end of the boss portion of each driven gear (29) (29) are A first transmission system (B) is formed by meshing with passive gears (31) and (31) formed on the inner diameters of the barrels (2) and (2), respectively.
In addition, (32) in the figure is a chain tension mechanism.

Therefore, the first claw shaft barrels (2) and (2) driven to rotate by the first transmission system (B) and the cultivation claws for both forward and reverse rotation mounted on the claw shaft cylinders (2) and (2). (25) is the second transmission system
(A) The second claw shaft barrel (4) (4) driven by rotation and the forward / reverse cultivating claw (25) mounted on the claw shaft barrel (4) (4)
Rotates in the opposite direction to the direction of rotation.

As shown in FIG. 2, a forward / reverse switching mechanism (C) is provided in the upper transmission portion of the second transmission system (A). 2
The rotation directions of both the transmission system (A) and the first transmission system (B) can be simultaneously switched. That is, the first
The forward / reverse cultivating claw (25) mounted on the claw shaft cylinder (2) rotates in the forward rotation direction (the same direction as the left and right wheels at the time of forward movement), and the normal claw shaft mounted on the second claw shaft cylinder (4). A first tilling state in which the reversing dual-purpose tilling claw (24) group rotates in the reverse direction (the direction opposite to the left and right wheels at the time of forward movement), and a forward / reverse dual-purpose tilling claw mounted on the first claw shaft cylinder (2).
(25) Group reverse direction (opposite to left and right wheels during forward movement)
Forward and reverse tilling claw mounted on the second claw shaft cylinder (4)
(24) The group can be switched to the second tilling state in which the group rotates in the normal rotation direction (the same direction as the left and right wheels during forward movement).

The illustrated forward / reverse switching mechanism (C) is constructed as follows. A PTO shaft protruding laterally from the transmission case (5) also serves as an upper shaft (11) mounted horizontally on the upper part of the tilling transmission case (1), and the upper shaft (11).
Penetrates the upper part of the tilling drive case (1)
It extends into a storage case (12) attached to the opposite side of (1). The upper sprocket of the second transmission system (A) is mounted on the upper shaft (11) inside the tilling transmission case (1).
(20) is fitted in the idle state.

In the housing case (12), a gear (15) rotatable with respect to the upper shaft (11) and a sprocket (16) have a predetermined space in the axial direction. Gear (15) and sprocket (1)
A switching body (19) slidably attached to the upper shaft (11) is provided between the switching body (6) and the switching body (19). The gear (15) and the sprocket (16) are alternatively connected to the upper shaft (11) by sliding in the center direction.
In (15), an intermediate gear (18) provided on an idle shaft (14) supported by a bearing case (12) is always engaged, and is provided on a sprocket (16) and the idle shaft (14). The passive sprocket (17) is chained with a chain.

When the switching body (19) is connected to the gear (15), the rotational power of the upper shaft (11) is changed by the switching body (1).
9), directly transmitted to the upper sprocket (20) via the gear (15), and the switching body (19) is connected to the sprocket (1).
6), the rotational power of the upper shaft (11) passes through the switching body (19), the sprocket (16), the chain, the passive sprocket (17), the idle shaft (14), and the intermediate gear (18). The gear (15), which is transmitted to the gear (15) and rotates in the opposite direction, drives the upper sprocket (20) to rotate in the opposite direction.

The forward / reverse switching mechanism (C) is not provided on the tilling transmission case (1) but on the transmission case (5) side.
In some cases, the rotation direction of the O-axis can be switched. Also, the second transmission system (A) and the first transmission system of the tilling transmission mechanism
The specific configuration of the transmission system (B) is not limited to the one shown in the drawing, but the point is that the second pawl shaft tube (4) and the first pawl shaft tube (2) can be rotationally driven in reverse. If so, any other modified configuration is acceptable. Further, in the embodiment shown in FIGS. 1 to 3, the first claw shaft tube (2) is provided as an inclined claw shaft tube for residual cultivation, but the first claw shaft tube (2) is provided with the second claw shaft. The cylinder (4) may be provided in a horizontal state where the axis coincides with the axis.

FIG. 4 shows an example in which the present invention is applied to a side drive type rotary tillage device. That is, of the first claw shaft tube (2) and the second claw shaft tube (4), which are driven to rotate in opposite directions by the two transmission systems (A) and (B) of the tilling transmission mechanism, the short first first shaft tube is used. The claw shaft cylinders (2) and (2) are arranged at the portions adjacent to the left and right tilling transmission cases (1) and (1).
A long second pawl shaft cylinder (4) is disposed between the pawl shaft cylinders (2) and (2) to form a side drive type rotary pawl shaft cylinder. Also in this case, the first claw shaft cylinders (2) and (2) disposed adjacent to the tilling transmission cases (1) and (1) are inclined similarly to the embodiment of FIGS. And each of the first claw shaft cylinders
(2) The tillage transmission case (1) located outside of (2) or the remaining tillage treatment below the support frame may be performed.
The implementation of the present invention is not limited to a tiller, but a rotary tiller for a relatively small riding tractor,
It can also be applied to axle-type working machines that share the axle as a tilling drive shaft, such as a control machine.

[0022]

Since the apparatus of the present invention is constructed as described in any one of claims 1 to 3, when the working conditions such as the hardness of the field and the quantity of grass are different, the first claw may be used as needed. Shaft barrel
A first tilling state in which (2) rotates forward and the second claw shaft cylinder (4) rotates in reverse, and a second tilling in which the first claw shaft cylinder (2) rotates in reverse and the second claw shaft cylinder (4) rotates in normal direction. By switching to the state, it is possible to cope with these differences, to exert a deashing deterrent according to the hardness of the field, and to provide a tilling drive case even in a field with a lot of straw.
(1) It is possible to reduce the embrace of grass and soil downward, and to perform stable tilling.

[Brief description of the drawings]

FIG. 1 is a side view of a tiller having a rotary tiller to which the present invention is applied.

FIG. 2 is a partial sectional view showing a main part of a rotary tillage device according to the present invention.

FIG. 3 is a side sectional view showing a part of a transmission portion of the rotary tillage device according to the present invention.

FIG. 4 is a schematic view showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tilling transmission case 2 1st nail shaft cylinder 4 2nd nail shaft cylinder A 2nd power transmission system B 1st power transmission system C Forward / reverse switching mechanism 24 Both forward / reverse rotation cultivation nail 25 Both forward / reverse rotation cultivation nail

Claims (3)

[Claims] A first claw shaft cylinder (1) which is provided on a lateral side portion of the tilling transmission case (1) and a rotary claw shaft cylinder provided laterally below the tilling transmission case (1). 2) and a second claw shaft tube (4) concentrically disposed on the lateral side of the first claw shaft tube (2) in the axial direction, and the first claw shaft of the rotary claw shaft tube. Partial reversing type roving in which the cylinder (2) and the second claw shaft cylinder (4) are driven to rotate in opposite directions by a tilling transmission mechanism having two transmission systems (A) and (B) having different rotation directions. In the tillage tilling device, the first and second claw shaft cylinders (2) and (4) are provided with both forward and reverse cultivation cultivation claws (25) and (24).
And the rotation direction of the two transmission systems (A) and (B) in the tilling transmission mechanism can be switched by the forward / reverse switching mechanism (C). A first tilling state in which the rolling second claw shaft cylinder (4) is reversed, and a first claw shaft cylinder
A rotary tilling device characterized in that it can be switched to a second tilling state in which (2) is reversed and the second claw shaft cylinder (4) rotates forward. 2. A first claw shaft cylinder (1) which is provided on a lateral side of said tilling transmission case (1) and a rotary claw shaft tube which is provided horizontally below a tilling transmission case (1). 2) and a second claw shaft tube (4) concentrically disposed on the lateral side of the first claw shaft tube (2) in the axial direction, and the first claw shaft of the rotary claw shaft tube. Partial reversing type roving in which the cylinder (2) and the second claw shaft cylinder (4) are driven to rotate in opposite directions by a tilling transmission mechanism having two transmission systems (A) and (B) having different rotation directions. In the till cultivator, the second claw shaft tube (4) is formed to be longer than the first claw shaft tube (2), and the first claw shaft tube is formed.
Both forward and reverse tilling claw on both (2) and long second claw shaft cylinder (4)
(25) Attach (24) and change the rotation direction of the two transmission systems (A) and (B) in the tilling transmission
(C) so that the first claw shaft cylinder can be switched.
A first tilling state in which (2) rotates forward and the second claw shaft cylinder (4) rotates in reverse, and a second tilling in which the first claw shaft cylinder (2) rotates in reverse and the second claw shaft cylinder (4) rotates in normal direction. A rotary tilling device, wherein a dash deterrent is made different depending on a state. 3. A first claw shaft cylinder (1) which is disposed on a lateral side portion of the tilling transmission case (1) and a rotary claw shaft tube provided horizontally below the tilling transmission case (1). 2) and a second claw shaft tube (4) concentrically disposed on the lateral side of the first claw shaft tube (2) in the axial direction, and the first claw shaft of the rotary claw shaft tube. Partial reversing type roving in which the cylinder (2) and the second claw shaft cylinder (4) are driven to rotate in opposite directions by a tilling transmission mechanism having two transmission systems (A) and (B) having different rotation directions. In the till cultivator, the second claw shaft tube (4) is formed to be longer than the first claw shaft tube (2), and the first claw shaft tube is formed.
Both the forward and reverse tilling claws (25) and (24) having the same rotation diameter are attached to both (2) and the long second claw shaft cylinder (4), and two transmission systems (A) in the tilling transmission mechanism. The first tilling state in which the rotation direction of (B) can be switched by the forward / reverse switching mechanism (C), and the first pawl shaft cylinder (2) rotates forward and the second pawl shaft cylinder (4) rotates reversely. And the first claw shaft cylinder (2) is reversed and the second claw shaft cylinder
The rotary tilling device according to (4), wherein the dash deterrent force is made different from the second tilling state in which the rotator rotates forward.