JPH08336301A - Rotary tiller - Google Patents

Abstract

PURPOSE: To provide a rotary tiller capable of carrying out the tillage operations simultaneously with the pulverization of weeds standing close together in a noncultivated land, a waste land or a field surface where the weeds standing close together. CONSTITUTION: This rotary tiller comprises pulverizing weeds D standing close together on a field surface C ahead of tillage driving so as to mix the pulverized weeds D in tillage soil by tillage driving of a rotary tillage part 5 in additionally installing a flail mower mechanism 19 near the field surface C in front of advance of the rotary tillage part 5 provided in a mobile machine body 2 and driving the tillage while advancing the rotary tillage part 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary tilling device which is self-propelled or is connected to a rear portion of a traveling machine body and operates, and particularly to perform tilling work in parallel with crushing of weeds forested in a field scene. The present invention relates to a rotary tiller capable of performing

[0002]

2. Description of the Related Art Conventionally, a rotary cultivator used for cultivating work is equipped with a rotary cultivating part at the rear part of a traveling machine body through a three-point link mechanism, and a rotary claw of the rotary cultivating part is directed to the forward side. It is configured to rotate and to cultivate soil in a field scene as the traveling machine body advances.

However, with the above-mentioned structure, when performing plowing work in a fallow field in which weeds stand in forests, a wasteland, or a field scene in which a large second crop is growing, weeds having a relatively short height are easily cultivated. Although it can be mixed into the cultivated soil, it is easy for the tall rotary weeds to roll up the stems and leaves of tall weeds. The stalks of weeds are entangled with the tilling shaft that drives the rotary claws to rotate, leading to a decrease in the plowing drive force.In addition, the work must be temporarily stopped to remove the entangled weeds. The problem was that it could not be carried out.

[0004]

SUMMARY OF THE INVENTION The present invention has been devised in view of the above situation to solve the conventional problems, and the object thereof is to have an extremely simple structure, An object of the present invention is to provide a rotary tilling device that can eliminate the entanglement of weeds and easily cultivate weeds that stand in the field while smoothly cultivating.

[0005]

In order to solve the problems, the technical means adopted by the present invention is to provide a flail mower mechanism adjacent to a field scene in front of a rotary tillage section provided on a traveling body. When driving tilling while advancing the rotary tiller, the weeds standing in the field scene are crushed by a flare mower mechanism prior to the tillage driving, and the crushed weeds are cultivated soil by the tiller driving of the rotary tiller. It is characterized in that it is configured to be mixed in.

[0006]

Therefore, according to the present invention, it is possible to perform the plowing work while crushing the weeds standing in the field, and the plowing work can be smoothly proceeded regardless of the weeds in the field scene.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described in detail with reference to an embodiment shown in the drawings. In the figure, reference numeral 1 denotes a rotary tiller mounted on a rear portion of a traveling body 2 via a link mechanism 3 so as to be movable up and down.
Is a support frame 6 in which a rotary tilling section 5 provided with a plurality of rotary claws 4, 4, ...
A rear cover 7 is installed along the lower surface, and a rear cover 7 that covers the rotary tilling part 5 is pivotally attached to the rear part of the support frame 6 so as to be vertically rotatable about a connecting metal fitting 8 as a fulcrum.

The rotary tiller 5 has a driven sprocket 10 coaxially pivotally mounted on a tiller shaft 9 to which rotary claws 4, 4, ... Are radially attached, and between the driven sprocket 10 and a drive sprocket (not shown). As shown in FIG. 3, the endless chain 11 is wound to form rotary claws 4, 4, ...
Is configured to be rotationally driven. Further, around the base end portion 10a of the driven sprocket 10, a sound deadening bush 13 made of an elastic rubber material having an outer diameter B slightly larger than the rotation diameter A of the link plate 12 forming the endless chain 11 is loosely fitted. When the chain is driven, the chain roller 14 of the endless chain 11 comes into contact with the outer peripheral surface of the muffling bush 13 without difficulty, so that the tooth bottom 15 of the driven sprocket 10 and the chain roller 14 do not directly collide with each other, and It is possible to reduce the noise of the chain in the tillage drive. Reference numeral 16 is a chain case that covers the driven sprocket 10, the endless chain 11, and the like.

At the front of the rotary tiller 5,
As shown in FIG. 4, a plurality of floating blades 1 bent in a Y shape.
A flail mower mechanism 19 in which 7, 17, ... Are pivotally attached to the outer peripheral surface of the rotary cylinder 18 is provided adjacent to the field scene C, and when the rotary cultivating apparatus 1 is driven while cultivating, the above-mentioned cultivating is performed. Drive belt 19 wound around the shaft 9
The rotary cylinder 18 is rotated in association with the rotational drive of a, and the weeds D standing in the field scene C are moved to the floating blade 17 of the flail mower mechanism 19 prior to the plowing drive of the rotary tilling section 5.
It is configured to be crushed by 17.

As shown in FIGS. 5 and 6, a main body cover 20 is integrally mounted from the rear portion to the front portion of the support frame 6 above the rotary tillage portion 5 and the flail mower mechanism 19 and is elastic. A mudguard mat 21 made of a rubber plate is attached to the back surface of the main body cover 20 along the circumference of the rotary locus of the rotary claws 4, 4 ... It is supported by imposition. Therefore, the mudguard mat 21 is lifted by the weight of the mud that is splashed up and adhered during the plowing work.
Can be prevented from hanging down.

Further, the rear surface of the rear cover 7 is shown in FIG.
As shown in (b), plate-shaped partition rubbers 25, 25 ... Are provided at predetermined intervals in the left-right direction of the machine body, and the mud that is flipped up in the direction indicated by the arrow during the tilling work is shown in FIG. )
As shown in FIG. 7, the partition rubbers 25, 25, ... Are not blocked by both sides of the partition rubbers 25, 25, ... And attached directly to the rear surface of the rear cover 7, and the leveled condition of the tillage trace by the rear cover 7 can be maintained evenly. Further, the partition rubbers 25, 25 ...
Instead of the contact surfaces 26a, 2a, as shown in FIG.
Partition block 26, 26 made of elastic rubber in which 6a is installed obliquely
... may be attached, and in this case, since the contact surfaces 26a, 26a face in the direction in which the mud is flipped up as indicated by the arrow, it is possible to more effectively prevent the mud from adhering to the back surface of the cover. You can

Since the present invention is constructed as described above, the rotary tiller 1 cultivates a fallow field in which weeds stand in forests, a wasteland, or a field scene in which the second spike grows greatly while the traveling machine body 2 is traveling. In this case, first, the plowing drive in the rotary plowing part 5 is preceded by the plurality of floating blades 17, 17, ... Of the flail mower mechanism 19 to finely grind the weeds D existing in the plowing area. Then, the crushed weeds D are mixed in the tilled soil cultivated by the subsequent tilling drive of the rotary tiller 5, and then leveled by the rear cover 7 at the rear.

Since the above-mentioned weeds D are finely crushed by the flail mower mechanism 19, the stems and leaves thereof are directly rotated by the rotary claws 4 of the rotary tiller 5.
It is not caught by 4 and is easily mixed into the cultivated soil, and the stem of the weeds D is entangled with the cultivating shaft 9 that rotationally drives the rotary claws 4, 4 ... It does not cause a decrease. Therefore, regardless of the presence or absence of the weeds D and the height of the weeds, the plowing work can be smoothly performed.

[0014]

In summary, according to the present invention, a flail mower mechanism is provided in front of the rotary tillage section provided on the traveling machine body in close proximity to a field scene, and when the rotary tillage section is driven while the tillage is driven. In addition, the weeds that stand in the field before the cultivating drive are crushed by the flail mower mechanism, and the crushed weeds are mixed in the cultivated soil by the cultivating drive of the rotary cultivating part. Even though it has a simple structure, it eliminates the entanglement of weeds,
Cultivation work can be carried out smoothly while easily crushing forested weeds in the field scene, and the crushed weeds are mixed into the cultivated soil without any effort, so the levelness of the cultivated soil surface can be maintained. It has a very useful new effect that the cultivating work can be performed regardless of the presence or absence of weeds and the height of the field in the field, and the adaptability to the cultivated soil surface can be expanded. .

[Brief description of drawings]

FIG. 1 is an overall side view of a rotary tiller.

FIG. 2 is an overall plan view of a traveling machine body to which a rotary tiller is connected, with some parts omitted.

FIG. 3A is a plan view of relevant parts showing a winding state of a driven sprocket and an endless chain in a chain case.
(B) is an upper sectional view of the same.

FIG. 4 is a perspective view of a main part of a flail mower mechanism in which a floating blade is attached to a rotary cylinder.

FIG. 5 is a side view of essential parts showing a mounted state of a mudguard mat provided on the back surface of the support frame.

FIG. 6 is a bottom view of an essential part showing a mounted state of a mudguard mat provided on the back surface of the support frame.

FIG. 7A is a side view of essential parts showing a state in which a partition rubber attached to the back surface of the rear cover is attached. (B) It is a principal part top view which shows the attachment state of a partition rubber same as the above.
(C) is a principal part plan view showing a case where a partition block is attached instead of the partition rubber.

[Explanation of symbols]

 1 Rotary Tillage Section 2 Traveling Aircraft 19 Flair Mower Mechanism C Field Scene D Weeds

Claims (1)

[Claims] 1. A flare mower mechanism is provided in front of the rotary tillage section provided on the traveling machine body in close proximity to a field scene, and when the tiller is driven while the rotary tillage section is being advanced, the tiller drive is preceded. A rotary tiller, wherein weeds that stand in a field are crushed by a flail mower mechanism, and the crushed weeds are mixed into the cultivated soil by driving the cultivator of the rotary tiller.