JPH09187102A - Side-drive rotary tilling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a side-drive rotary tilling device capable of suppressing dashing phenomena or slipping phenomena of a machine body caused by driving of a tilling tine and excellently tilling although the device can precisely prevent a side-drive case moving outside a tilling zone of a rotary tine shaft from leaving a furrow mark by pushing soil or dragging weeds and straws. SOLUTION: In this side-drive rotary tilling device in which a side part of a side-drive case 6 is equipped with a slant tine shaft cylinder 22 inclined at a fixed angle from a rotary tine shaft 8 supported at both end parts by a side frame 7 and the side-drive case 6, the slant tine shaft cylinder 22 is constituted so as to be driven and rotated in the opposite direction to the rotary tine shaft 8. Alternatively, both the right and the left part of the side-drive case 6 are equipped with the slant tine shaft cylinders 22, respectively, one of the slant tine shaft cylinders 22 is driven and rotated in the opposite direction to the rotary tine shaft 8 and the other slant tine shaft cylinders 23 is driven and rotated in the same direction as that of the rotary tine shaft 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary claw shaft for supporting the left and right shaft ends by a side frame and a side drive case, which is rotationally driven by a transmission system which is housed in the side drive case. The present invention relates to a side-driving rotary tiller.

[0002]

2. Description of the Related Art In a side-drive rotary tiller, a side-drive cage that supports both ends of a rotary pawl shaft is used.
Since the space and the side frame move to the outside of the cultivated region where the rotary nail shaft does not have the plowing action, particularly in the side drive case which is widened by housing the transmission system,
The wide case forms a groove mark by pushing soil outside the cultivated area or dragging grass straw scattered on the surface of the ground, which causes a problem that the arranging ability of the tillage is impaired.

Therefore, an inclined claw shaft that rotates around an axis inclined at a constant angle with respect to the axis of the rotary claw shaft is arranged on the side of the side drive case, and the inclined claw shaft is provided. It has been proposed that the soil under the side drive case is cultivated by a tilling claw provided in the above (see, for example, Japanese Utility Model Laid-Open No. 60-171101).

[0004]

However, in the above-mentioned conventional apparatus, the soil below the side drive case is cultivated by the inclined claw shafts arranged on the side portions of the side drive case. Although it is possible to eliminate soil pushing and dragging of straw, etc., since the inclined claw shaft was driven to rotate in the same direction as the rotary claw shaft, the dash of the aircraft due to the driving load of the plowing claws. There is a problem that the phenomenon or the slip phenomenon is promoted, and the suppression of such a phenomenon has to be based solely on the arrangement of the plowing claws and the shape of the claws, which is a problem that cannot be sufficiently suppressed.

The present invention has been made in view of the above problems, and an object thereof is to provide an inclined pawl shaft that rotates at an angle with respect to the axis of the rotary pawl shaft. It is a side-drive rotary cultivator that tills the soil below the drive case to eliminate soil pushing and dragging of straw by the side drive case. An object of the present invention is to provide a device in which the slip phenomenon is well suppressed.

[0006]

In order to achieve the above object, a side-drive rotary tiller according to the present invention has a left and right shaft end supported by a side frame and a side drive case. -In a structure in which an inclined pawl tube supported by being inclined at a constant angle with respect to a tarry pawl shaft is arranged on a side portion of the side drive case, the inclined pawl tube is It is configured so as to be rotationally driven in the opposite direction with respect to the tarry claw shaft. Then, the inclined claw shaft cylinders are disposed on both left and right side portions of the side drive case, and one of the inclined claw cylinders is rotationally driven in the opposite direction with respect to the rotary claw shaft, and
The other inclined pawl cylinder can be configured to rotate in the same direction as the rotary pawl shaft.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall side view of a tiller equipped with a side-drive rotary tiller according to the present invention, and FIG. FIG. 3 is a rear view of the side-drive rotary tiller, FIG. 3 is a sectional view of a main part, and FIG. 4 is a side view showing a transmission system in the side-drive case.

In FIG. 1, a cultivator T has an engine 1 mounted on a frame extending forward from a mission case, and an axle for supporting the power of the engine 1 to a lower portion via a transmission mechanism in a mission case. 2 is configured to drive by driving the wheels 3 and 3 fitted to the axle 2, and the driving operation can be performed at a handle portion of a steering handle 4 extending backward from a mission case. ing. A side drive rotary tiller R is detachably attached to the rear portion of the mission case.

The side-drive rotary tiller R is provided with a base frame 5 in the lateral direction of the machine body, a side drive case 6 connected to one end of the base frame 5, and a base frame 5 connected to the other end of the base frame 5. The lower part of the tillage section machine frame formed by the side frame 7 that is formed, that is, between the side drive case 6 and the lower end of the side frame 7, the rotary claw shaft 8 is supported in a bridge shape. To be done.

Numeral 9 is a beam extending rearward from the tillage section frame, and numeral 10 is an upper surface portion extending from the beam in a wing shape on both sides and side surface portions vertically extending from both end portions thereof. The cultivating cover 11 and 11 are gage wheel devices for setting the cultivating depth installed at the rear end of the beam, and 12 is the cultivating device arranged on the outer periphery of the rotary pawl shaft. It is a nail.

The base frame 5 of the cultivating section machine frame is provided with a passive section 13 at the center thereof, the passive section 13 is connected to the mission case, and is provided from the output section of the mission case. The power is received by the passive portion 13 and transmitted to the rotary shaft 14 supported in the base frame 5. The end portion of the rotary shaft 14 is, as shown in FIG. 2, a side drive case 6 which is continuously provided on one end portion of the base frame 5.
It is projected into the inside and is input to the transmission system D which is housed inside the side drive case 6.

The transmission system D is for transmitting power to the tilling drive shaft 15 which is horizontally supported on the lower portion of the side drive case 6.
A chain 18 is hung around a sprocket 16 fitted to the rotary shaft 14 and a passive sprocket 17 fitted to the cultivating drive shaft 15, and is tensioned with an arbitrary tightener 19.

The cultivating drive shaft 15 is horizontally supported in the center hole of the bearings 20, 20 attached to the side drive case 6, and the rotary claw shaft 8 is attached to one end of the shaft. Is wedge-coupled, and the other end of the rotary pawl shaft 8 is rotatably supported by the bearing portion 21 of the side frame 7.
The rotary pawl shaft 8 is configured to be rotationally driven in a desired direction by the transmission system D.

According to the present invention, in the side-drive rotary cultivating apparatus as described above, the rotary claw shaft 8 is used to cultivate the soil immediately below the side-drive case 6. The inclined claw cylinder 22 that inclines at a constant angle with respect to
Although it is arranged on the side of the side drive case 6, the inclined claw cylinder 22 is provided in the following configuration in the illustrated embodiment.

In FIGS. 2 and 3 and 4, the outer diameter portions of the bearing portions 20, 20 are formed in bearing portions that are inclined at a constant angle with respect to the axis of the tillage drive shaft 15, and the respective inclined bearings are provided. The inclined claw cylinders 22 and 23 are rotatably supported by the section. Then, one of the inclined claw shaft cylinders 22 is rotated by a reverse rotation drive mechanism D'composed by being linked to the transmission system D.
It is driven to rotate in the opposite direction to the tarry pawl shaft 8, and the other inclined pawl shaft cylinder 23 is interlockingly connected to the tillage drive shaft 15 via the refraction transmission portion, and is the same as the conventional inclined pawl shaft cylinder. It is configured so as to be rotationally driven in the same direction as the sag claw shaft 8.

Specifically, a reverse rotation drive mechanism D'rotatably driving one of the inclined claw shaft cylinders 22 has a drive gear 2 provided so as to obtain power from the transmission system D in the central transmission case 1.
A passive gear 25 meshing with 4 is rotatably fitted to and supported by the cultivating drive shaft 15, and a gear 26 fitted to the outer end portion of the boss portion of the cultivating drive gear 25 is formed on the inner diameter portion of the inclined claw shaft cylinder 22. It is configured to mesh with the receiving gear portion 27 to be provided. Reference numeral 28 denotes a tilling claw planted in one inclined claw shaft tube 22, and 29 denotes a tilling claw planted in the other inclined claw shaft tube 23.

Therefore, in the side drive rotary device constructed as in the illustrated embodiment, the power transmission system D in the side drive case 6 rotates the tillage drive shaft 15 in the desired direction. If the rotary claw shaft 8 is driven to rotate,
At the same time, the other inclined pawl shaft cylinder 23 is rotated in the same direction as the rotary pawl shaft 8 by the power transmitted from the cultivating drive shaft 15 via the bending transmission portion, and the one inclined pawl shaft cylinder 22 is also rotated.
Is rotated in the opposite direction to the rotary claw shaft 8 by the reverse rotation drive mechanism D '.

The rotary claw shaft 8 and the two inclined claw shaft cylinders 2
By the above rotation of Nos. 2 and 23, the plowing claws 12, 28, 29 planted in them are driven into the soil in a predetermined order, so that the plowing claws 12 of the rotary claw shaft 8 have a predetermined shape. At the same time as the plowing of the width is performed, both inclined claw shaft cylinders 2
The soil directly below the side drive case 6 is tilled by the tilling claws 28 and 29 of Nos. Two
Since it rotates in the opposite direction with respect to 9 and is driven into the soil, the dash phenomenon of the vehicle body or the vehicle body slip phenomenon caused by the driving of other plowing claws 12 and 29 into the soil is suppressed, and good tilling is performed. .

In the illustrated embodiment, a side drive cable is used.
The inclined pawl shaft cylinder 23 located inside the space 6 is attached to the rotary pawl shaft 8
The inclined pawl shaft cylinder 22 located outside the side drive case 6 is rotated in the opposite direction to the rotary pawl shaft 8 by rotating the same in the same direction. The direction of rotation may be reversed from that described above. Further, in the illustrated embodiment, the inclined pawl shaft cylinder provided so as to rotate in the same direction as the rotary pawl shaft is omitted, and the inclined pawl shaft cylinder rotates in the opposite direction to the rotary pawl shaft. You may make it possible to cultivate the soil directly under the side case only by
With such a configuration, the device is simplified as compared with the illustrated embodiment. When only the inclined pawl shaft cylinder that rotates in the opposite direction to the rotary pawl shaft is provided, if the inclined plowing pawl shaft cylinder is arranged outside the side drive case, the ridges can be well formed. It also means that it can be cultivated.

Further, in some cases, a side drive cable is used.
The inclined claw shaft cylinders 22 and 23 disposed on both inner and outer sides of the space 6 may be provided so as to be rotationally driven in the opposite directions with respect to the rotary claw shaft 8, respectively. Even when the dash phenomenon or the slip phenomenon is extremely large, the depressing effect is sufficiently exerted. Further, in any of the above cases, it is possible to easily incorporate the rotation direction switching means into the reverse rotation drive mechanism D ′ for the inclined claw shaft cylinder that rotates in the opposite direction to the rotary claw shaft. If the switching means is provided, the structure will be somewhat complicated, but switching can be performed depending on the situation and the function can be improved.

[0021]

As described above, in the side drive rotary tiller according to the present invention, the left and right shaft ends are fixed with respect to the rotary pawl shaft supported by the side frame and the side drive case. The inclined claw cylinder that is supported at an angle
In the structure arranged on the side of the side drive case, the inclined claw cylinder is configured to be rotationally driven in the opposite direction to the rotary claw shaft, and Inclined claw shaft cylinders are provided on both left and right side portions of the side drive case, and one inclined claw cylinder is rotationally driven in the opposite direction to the rotary claw shaft, and the other inclined claw cylinder is also driven. Since it can be driven to rotate in the same direction as the rotary claw shaft, in any case, good tillage without soil pushing by the side drive case or dragging of straw etc. Alternatively, it was successfully performed under the condition that the slip phenomenon was suppressed.

[Brief description of the drawings]

FIG. 1 is an overall side view of a cultivator equipped with the device of the present invention.

FIG. 2 is a rear view of the device of the present invention.

FIG. 3 is a sectional view of a main part.

FIG. 4 is a side view showing a transmission system in a side drive case.

[Explanation of symbols]

 6 Side drive case 7 Side frame 8 Rotary claw shaft 22 One inclined claw shaft cylinder 23 The other inclined claw shaft cylinder

Claims (2)

[Claims] 1. A rotary pawl shaft having left and right shaft ends supported by side frames (7) and side drive cases (6).
Inclined claw tube that is supported at an angle to (8)
In the side drive rotary tiller, which is configured by arranging (22) on the side of the side drive case (6), the inclined pawl tube (22) is attached to the rotary pawl shaft (8). ), A side-drive rotary tiller. 2. An inclined pawl tube (22) (23), which is supported by being inclined at a constant angle with respect to the rotary pawl shaft (8), is provided on the left and right side portions of the side drive case (6). One slanted claw tube (2
2) is rotationally driven in the opposite direction to the rotary pawl shaft (8), and the other inclined pawl tube (23) is rotationally driven in the same direction as the rotary pawl shaft (8). A side-drive rotary tiller equipped with