JP3146198B2 - Rotary tillage equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention provides a plurality of claw shaft cylinders which are rotatable with respect to a drive shaft mounted laterally on a tilling transmission case and are arranged in parallel in the axial direction of the drive shaft. A first claw shaft barrel of the plurality of claw barrels is rotationally driven by a first claw shaft drive mechanism having the drive shaft as an output shaft, and a second claw shaft barrel is rotatably mounted on the drive shaft. The present invention relates to a rotary tilling apparatus driven to rotate by a second pawl shaft drive mechanism having a transmission cylinder shaft inserted and rotated in a direction opposite to a drive shaft as an output shaft.

[0002]

2. Description of the Related Art A rotary tilling apparatus as described above is already known, for example, as disclosed in Japanese Patent Publication No. 46-39041.

[0003]

In a known rotary device, a cultivating claw of a first claw shaft cylinder and a cultivating claw of a second claw shaft cylinder of a plurality of claw shaft cylinders always rotate counter to each other. Because there was
For example, when performing soil cultivation work, there is an inconvenience that it is impossible to rotate all the tilling claws of the first and second claw shaft cylinders in the same direction. Therefore, the present invention provides a rotary tilling device that can rotate all the tilling nails mounted on the first and second nail shaft cylinders in the same direction, if necessary. Is what you do.

[0004]

That is, a rotary tilling device according to the present invention comprises a plurality of claw shaft cylinders rotatable with respect to a driving shaft mounted horizontally on a tilling transmission case. Arranged in parallel in the core direction, the first of a plurality of claw shaft cylinders
The claw shaft cylinder is rotationally driven by a first claw shaft drive mechanism having the drive shaft as an output shaft, and the second claw shaft cylinder is rotatably mounted on the drive shaft and rotates in a direction opposite to the drive shaft. In a rotary tilling device that is driven to rotate by a second claw shaft drive mechanism having a transmission cylinder shaft as an output shaft, the first claw shaft drive mechanism includes:
There is provided a coupling switching means capable of disconnecting the interlocking connection with the first pawl shaft cylinder and connecting to the second pawl shaft driving mechanism.

[0005] By switching the rotation direction of the first pawl barrel, the coupling switching means is accommodated in the inner portion of the first pawl barrel and the second pawl barrel adjacent thereto. While the tilling drive case is not amplified, the residual tilling treatment below the tilling drive case can be advantageously performed. Further, the coupling switching means is converted into a posture interlockingly coupled to a drive shaft, which is an output shaft of the first pawl shaft driving mechanism, and a posture interlockingly coupled to a transmission cylinder shaft, which is an output shaft of the second pawl shaft driving mechanism. The switching structure can be simplified and made compact by using a transmission coupling that can be used.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One specific embodiment of the present invention will now be described with reference to the drawings. FIG. 1 shows a first claw shaft cylinder and a first claw shaft of a rotary tilling device configured for a tilling machine. FIG. 2 is an overall side view showing a state in which the two-claw shaft cylinder rotates in the opposite direction, and FIG. 2 is an overall view showing a state in which the first and second claw shaft cylinders of the rotary tilling device rotate in the same direction. FIG. 3 is a partial view showing the left half of section A in FIG. 1, FIG. 4 is a partial view showing the left half of section B in FIG. 2, and FIG. FIG.

In FIG. 1 and FIG. 2, a tiller (T)
A frame (2) extending forward from the mission case (1)
An engine (3) is mounted on the vehicle, and the power of the engine (3) is transmitted to an axle (4) supported on a lower portion of the transmission case (1) via a transmission mechanism for accommodating the power in the transmission case (1). Axle
The vehicle is configured to drive by rotating a wheel (5) fitted to (4), and the driving operation is performed on a handle portion of a steering handle (6) extending backward from the transmission case (1). Have been. Then, a row is placed at the rear of the mission case (1).
Tari cultivation equipment (R) can be equipped detachably.

The rotary tilling device (R) is a tilling transmission case (7) connected to the mission case (1) of the cultivator (T).
And a beam and tillage cover (9) extending rearward from the upper part thereof, and a gage wheel device (8) installed at the tail of the beam. A rotary claw shaft cylinder is provided beneath the bearing (7),
The tall claw shaft cylinder is composed of a pair of second claw shaft cylinders (14) and (14) arranged on the left and right sides of the tilling transmission case (7), and the side of each of the second claw shaft cylinders (14). A pair of first claw shaft cylinders arranged on the outer side
(13) and (13).

The first claw shaft barrels (13) and (13) are respectively provided on left and right protruding portions of a drive shaft (10) which is provided horizontally through the shaft centers of the claw shaft holders (12) and (12). The second claw shaft cylinders (14) and (14) are provided so as to be detachably fitted. The claw shaft holders (14) are provided symmetrically on both left and right sides of the tilling transmission case (7). 12) and (12) are provided rotatably on bearings at the inclined outer diameter portions, respectively, and tilling claws (15) and (15) are provided on the outer periphery of the first claw shaft cylinders (13) and (13). , The second pawl barrel (1
4) On the outer periphery of (14), tilling claws (16) and (16) are attached in a predetermined arrangement.

The first claw shaft cylinders (13) and (13) and the second claw shaft cylinders (14) and (14) are housed in the tilling transmission case (7) by a claw shaft drive device. The claw shaft driving device is configured to be driven to rotate. The claw shaft driving device includes a first claw shaft driving mechanism (11) having the driving shaft (10) as an output shaft, and a first claw shaft driving mechanism (11). ) Is transmitted to the second claw shaft cylinders (14) and (14).
(17).

The first claw shaft drive mechanism (11) is connected to a sprocket fitted to a passive shaft receiving power from the PTO portion of the transmission case (1) and a center portion of the drive shaft (10). A chain is hung around the wedge-mounted sprocket and a drive shaft (10) is used as an output shaft.

The second claw shaft driving mechanism (17) is shown in FIGS.
As shown in FIG.
A transmission cylinder shaft having a passive gear (19) meshed with a drive gear (18) provided inside the gear (7) and provided to receive power from the first claw shaft drive mechanism (11) is One-jaw shaft drive mechanism
The drive shaft (10), which is the output shaft of (11), is rotatably fitted on the outside and rotatably fitted on the inside diameter of the claw shaft holder (12) and supported, and the transmission cylinder shaft is configured as the output shaft. Have been.
And, a gear externally fitted to a portion near the outer end of the transmission cylinder shaft
(20) is engaged with a receiving gear portion (21) formed on the inner diameter portion of the second claw shaft cylinder (14) to constitute a refraction transmission portion, and includes a driving gear (18) and a passive gear (19). ), The second pawl shaft cylinder (14) is driven by the drive shaft (1) with the power transmitted through the refraction transmission unit.
It is configured to be rotationally driven in a direction opposite to 0).

On the other hand, the first claw barrel (13) disposed on the laterally outer side of each of the second claw barrels (14) in the axial direction of the drive shaft (10) has an inner end whose drive end is the drive shaft. An inner cylinder (22) serving as a fitting portion to be inserted into the shaft (10), and an outer cylinder (23) externally mounted on the inner cylinder (22) and rotatably supported by a bearing; A female spline portion (24) formed at the inner end inner diameter portion of the shaft is engaged with a male spline portion (26) of a transmission joint (25) in the rotation direction switching means described later, and inserted thereinto.
7) It is configured so as to be fixed.

The transmission joint (2) constituting the rotation direction switching means
5) can be fitted inside the drive shaft (10) by reversing the inside and outside, and as shown in FIG. 5, the central hole of the transmission joint (25) has one side in the length direction. Offset female spline
(28) is engraved, and a passive claw portion (29) is provided on the outer end surface of the female spline (28) engraving rib.

On the other hand, a male spline (30) with which the female spline (28) is engaged is engraved on a predetermined portion of the drive shaft (10), and a portion adjacent to the male spline (30) is formed on the drive shaft (10). A concave groove (31) is provided to prevent the female spline (28) from wedge-engaging with the drive shaft (10) when the transmission joint (25) is turned inside out and fitted. Further, on the outer end face of the transmission cylinder shaft provided with the passive gear (19) at the inner end,
When the transmission joint (25) is fitted inside up and down, the driving claw (3) with which the passive claw (29) of the transmission joint (25) engages.
2) is formed.

In the illustrated embodiment, the second claw shaft cylinders (14) and (14) are inclinedly supported by the claw shaft holders (12) and (12), and the first claw shaft driving mechanism (11) is moved. Since the second claw shaft drive mechanism (17) that transmits the rotational power in the opposite direction is driven to rotate in the up-cut direction, the tilling claw (16) attached to it is connected to the drive shaft (10). Are mounted in an orientation that matches the rotation in the opposite direction, while the first
The tilling claws (15) group of the claw shaft cylinder (13) are mounted in a direction matching the rotation direction of the drive shaft (10), but when necessary, the first claw shaft cylinder (13) on the left side is on the right side, and the right side is on the right side. 1st claw shaft cylinder (13)
Is replaced on the left side, and the direction of the tilling nails (15) group attached to them is changed to the tilling nail (16) of the second nail shaft cylinder (14).
(See FIGS. 1 and 2).

Therefore, in the rotary tilling apparatus of the embodiment, as shown in FIG. 3, the transmission joint (25) is connected to the female spline (28) and the passive claw (29) from the second claw shaft cylinder (14). The drive shaft (10) is fitted to the drive shaft (10) in the direction located on the far outer side, and then the first claw shaft cylinder (13) is attached to the tilling claw (1
5) If the group is mounted in a direction that matches the rotation direction of the drive shaft (10), the rotational power of the drive shaft (10) will be splined.
(30) Transmission joint (25) from (28), spline part (26)
(24) and transmitted to the first claw shaft cylinder (13),
5) The group is turned downcut. In addition, the second claw shaft cylinder (1
4) is driven by the second claw shaft drive mechanism (17) that transmits rotational power in the opposite direction to the first claw shaft drive mechanism (11), so that the tilling claw (16) attached thereto is driven. Is turned up-cut opposite to the tilling nails (15) group of the first nail shaft cylinder (13). Then, the tilling claw (15) of the first claw shaft tube (13) and the cultivating claw (16) of the second claw shaft tube (14) rotating in opposite directions perform tilling of a predetermined width,
At that time, the dashing phenomenon of the airframe is suppressed by driving the tillage claws (15) and (16) into the soil in opposite directions.

Next, the first pawl barrel (13) and the transmission joint (25) mounted on the drive shaft (10) as described above are moved to the drive shaft.
(10), the transmission joint (25) is inverted inside and out and inserted into the drive shaft (10).
8) corresponds to the recessed groove (31), the transmission joint (25) is not connected to the drive shaft (10), and the passive claw (29) of the transmission joint (25) is connected to the transmission cylinder. The driving pawl (32) on the outer end surface of the shaft engages with the driving pawl (32) so that the power is transmitted to the transmission joint (25) from the second pawl shaft driving mechanism (17), that is, the first pawl barrel (13). (13) and the second claw shaft barrels (14) and (14)
The claw shaft driving mechanism (17) is driven to rotate in the same direction. Thus, in this modified posture, the first claw shaft cylinder (13) mounted on the left side of the tilling transmission case (7).
To the right of the tilling drive case (7), and the tilling drive case
If the first claw shaft cylinder (13) mounted on the right side of (7) is replaced and mounted on the left side of the tilling transmission case (7), the first claw shaft cylinder is mounted.
The tilling nail (15) group of (13) is also the tilling nail of the second nail shaft cylinder (14).
It becomes the same direction as (16), and all those tillage claws (15)
(16) Tillage in which the group rotates in the same direction is performed.

[0019]

According to the present invention, a plurality of claw shaft cylinders (13) and (14) rotatable with respect to a drive shaft (10) mounted laterally on a tilling transmission case (7) are mounted on the drive shaft (7). 10) are arranged in parallel in the axial direction, and the first claw shaft cylinder (13) of the plurality of claw shaft cylinders is
A first claw shaft drive mechanism (1) having the drive shaft (10) as an output shaft
1), the second pawl shaft cylinder (14) is rotatably mounted on the drive shaft (10), and the transmission shaft that rotates in the opposite direction to the drive shaft (10) is the output shaft. In a rotary tilling device driven to rotate by a second claw shaft drive mechanism (17), the first claw shaft drive mechanism (11) includes a first claw shaft cylinder (13).
Is provided with a coupling switching means capable of disconnecting the interlocking connection with the second claw shaft driving mechanism (17), so that in the normal case, the tilling of the first claw shaft cylinder (13) which rotates in the opposite direction to each other. Nails (1
5) and the cultivating claw (16) of the second claw barrel (14) is driven into the soil in the opposite direction to perform the tilling work while suppressing the dash phenomenon of the body. If necessary, the first claw barrel is used. (13)
The tilling claw (15) and the tilling claw (16) of the second claw shaft cylinder (14) can be rotated in the same direction to perform the tilling operation.

Further, the coupling switching means is provided with a first
The first claw barrel (13) is accommodated in the inner portion of the claw barrel (13) and the second claw barrel (14) adjacent thereto.
The rotation direction can be switched, but the remaining tillage treatment below the tilling transmission case can be performed advantageously without amplifying the tilling transmission case (7). A drive shaft which is an output shaft of the first claw shaft drive mechanism (11).
The posture interlocked with (10) and the second claw shaft drive mechanism (17)
The switching structure can be made simple and compact by using a transmission coupling (25) that can be converted into a posture interlockingly coupled to the transmission cylinder shaft that is the output shaft.

[Brief description of the drawings]

FIG. 1 is an overall side view of a tiller in a state where a first claw shaft cylinder and a second claw shaft cylinder of a rotary tillage device are rotated in opposite directions.

FIG. 2 is an overall side view of the cultivator in a state where a first claw shaft cylinder and a second claw shaft cylinder of a rotary tillage device rotate in the same direction.

FIG. 3 is a partial view showing the left half of the section A in FIG. 1;

FIG. 4 is a partial view showing a left half of a B section in FIG. 2;

FIG. 5 is an explanatory view showing an exploded rotation direction switching means.

[Explanation of symbols]

 Reference Signs List 7 Tilling transmission case 10 Tilling drive shaft 11 First claw shaft drive mechanism 12 Claw shaft holder 13 First claw shaft cylinder 14 Second claw shaft cylinder 17 Second claw shaft drive mechanism 25 Transmission joint

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01B 33/12 A01B 33/08 B60K 17/08

Claims (3)

(57) [Claims] A drive shaft mounted laterally on a tilling transmission case (7).
A plurality of claw shaft cylinders (13) and (14) rotatable with respect to (10) are arranged in parallel in the axial direction of the drive shaft (10), and a first claw of the plurality of claw shaft cylinders is provided. The shaft cylinder (13) is connected to the drive shaft (10).
Is driven to rotate by a first claw shaft drive mechanism (11) having an output shaft, and a second claw shaft cylinder (14) is rotatably mounted on the drive shaft (10) and is defined as a drive shaft (10). In a rotary tilling apparatus driven to rotate by a second pawl shaft drive mechanism (17) having a transmission barrel shaft rotating in the opposite direction as an output shaft, the first pawl shaft drive mechanism (11) includes a first pawl shaft cylinder. A rotary tilling device comprising a coupling switching means capable of disconnecting an interlocking connection with (13) and connecting to a second pawl shaft driving mechanism (17). 2. The connection switching means according to claim 1, wherein said coupling switching means is housed in the inner portion of said first pawl barrel (13) and said second pawl barrel (14). -Tari tillage equipment. The coupling switching means includes a first claw shaft driving mechanism (13).
A transmission joint (25) that can be converted into a posture interlockingly coupled to the drive shaft (10), which is the output shaft of the motor, and a posture interlockingly coupled to the transmission cylinder shaft, which is the output shaft of the second claw shaft drive mechanism (17). The rotary tillage device according to claim 1 or 2, wherein the rotary tillage device is provided.