JPH0451530Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a soil discharge guide plate in a reversible rotary tiller.

[Prior art] Conventionally, as this type of tillage device, for example,
There is something like the one described in the -11223 publication.
This device has symmetrical earth-repellent plates integrally fixed to the left and right sides of the transmission case that supports the rotating shaft, and an arc-shaped rear guide plate and side guide plates are installed in series with the soil-repellent plates. .

[Problems to be solved by the invention] By the way, in the above-mentioned device, since the soil repellent plate and the guide plate are integrally fixed to the transmission case, the soil cannot be plowed by the rotating blade. There is a problem in which the angle at which the soil is thrown cannot be changed when soil is poured laterally.
Another problem is that when difficult pebbles or clods of soil hit the guide plate during plowing and deform and damage it, it takes too much time to replace it, which is troublesome for the worker.

[Means for solving the problems] This invention takes the following technical measures to solve the above problems. That is, in a tilling device that tills soil by providing a plurality of tilling claws 11 on a tilling shaft 9 and reversing them, the upper part of the tilling part is narrow, long in the front and back direction, and reversed when viewed from the rear. It is covered with a main cover 12 provided inclined in a V-shape, and the rear of the tilling section is covered with a guide plate 15 made of a single plate, and a support rod 18 is mounted upward on the upper back side of the guide plate 15. This is attached to a holder 19 for attaching a working machine provided on the machine frame so that its vertical position can be adjusted freely. The main cover 12 is provided with a wing portion 17 formed in a triangular shape and whose tip side recedes rearward.
The soil discharge guide plate of the tilling device is characterized in that the blade section 17 and the wing section 17 cover the rear upper part of the tilling section.

[Example] Next, an example of this invention will be described based on the drawings. First, to explain the configuration, 1 is a walking type power agricultural machine, 2 is a transmission case, 3 is a drive wheel, and 4 is a control handle.

A rotary tiller 6 is removably connected to the hitch 5 of the power agricultural machine, and the rotary tiller 6 moves the tiller shaft 9 to the first rotary tiller via transmission elements such as chain sprocket mechanisms in the transmission cases 7 and 8. In the figure, it is rotated clockwise.

Flanges 10 are fixed to the left and right sides of the tilling shaft 9 with the transmission case 8 interposed therebetween, and as shown in the figure, when viewed from the side, the tip edge of the claw comes into contact with the soil ahead of other parts in the direction of rotation. A regular claw 11 is attached to scoop the soil while doing so.

12 is the main cover that covers the upper part of the tilling section.It is narrow in width and long in the front-back direction, and is configured to have an inverted V-shape when viewed from the rear, and its angle can be adjusted freely around the front-back axis. It is composed of 13
14 is a front cover that covers the front of the tilling section, and 14 is a rubber cover provided at the rear of the tilling section of the rotary tilling device 6.

A guide plate 15 is provided between the tilling section and the rubber cover 14 to receive the soil blown backward and guide it in the left and right directions.

The guide plate 15 is formed by bending a single plate, and in detail, when viewed from the back, it protrudes diagonally upward on both left and right sides, and when viewed from the side, the folded portion has a substantially triangular shape. Furthermore, the guide plate 15 is provided with a wing portion 17 whose tip side recedes rearward, and the intermediate portion of the guide plate 15 is bent forward so that the lower edge approaches the tilling portion.

A support rod 18 made of a pipe is fixed to the central part of the back of the guide plate 15, and this is attached from below to a holder 19 for attaching a working machine fixed to a machine frame 16 provided approximately on the center line of the machine body. It is configured so that it can be inserted and fixed in any position.

20 is a tail wheel for a gauge that determines the plowing depth, and 21 is a handle for adjusting it.

Next, the effect will be explained.

When the tilling shaft 9 is reversed by transmitting rotational power to each rotating part, the soil scooped out by the normal claws 11 is carried backwards while being guided in contact with the inner peripheral surfaces of the front cover 13 and main cover 12. Information board 1
Collision with the top of 5.

The soil that is broken down into small pieces while being moved around inside the cover is guided by the wing portion 17 formed on the upper part of the guide plate 15.
The water abuts against the plant and is then dropped onto the base of the crop outside the furrow.

The wing portion 17 is formed by projecting the left and right sides of the upper part of the guide plate 15 obliquely upward and folding it back, so that it is easy to manufacture and has the feature that the strength of the guide plate 15 itself is strong.

Since the guide plate 15 is attached to the support rod 18 integral with the guide plate 15 by inserting it from below into a holder 19 for mounting the work machine so that the position can be adjusted, a special mechanism is required to support the guide plate 15. When performing ridge raising work etc., other work equipment can be installed in place of this guide plate 15, which facilitates attachment/detachment/replacement work.

Further, during the soil filling work, the main cover 12 can be simply brought into contact with the upper edge of the wing section 17. In this way, when changing the position of the guide plate 15, the main cover 12 can be moved. 12
The position of the soil can be adjusted at the same time, and the direction and angle of soil discharge can be adjusted quickly.

[Effects of the invention] Since this invention is configured as described above, it has the following technical effects.

That is, in a tilling device that is provided with a plurality of tilling claws 11 of a tilling shaft 9 and tills the soil while reversing these, the upper part of the tilling part is narrow, long in the front and back direction, and reversed when viewed from the rear. It is covered with a main cover 12 provided inclined in a V-shape, and the rear of the tilling section is covered with a guide plate 15 made of a single plate,
At the upper part of the back of the guide plate 15, there is a support rod 1 facing upward.
8 is fixed and attached to a holder 19 for attaching a working machine provided on the machine frame in a vertically adjustable manner. The guide plate 15 is provided with a wing section 17 formed in a substantially triangular shape and whose tip side recedes rearward, and the main cover 12 and the wing section 17 are configured to cover the rear upper part of the tilling section. Since a special mechanism for supporting is not required, the entire device can be constructed at a low cost, and when the guide plate 15 is deformed or damaged, the work of attaching and detaching it is extremely simple and easy.

Further, since the guide plate 15 is formed by bending a single plate, it is easy to manufacture, and sufficient strength is ensured to improve handling.

[Brief explanation of the drawing]

The figures show an embodiment of this invention, with FIG. 1 being a side view and FIG. 2 being a rear view. Explanation of symbols, 1... Power agricultural machine, 6... Rotary tilling device, 12... Main cover, 13... Front cover, 14... Rubber cover, 15... Guide plate, 17... Wing section, 18... Support rod, 19...Holder for mounting work equipment.

Claims (1)

[Scope of utility model registration request] In a tilling device that has a plurality of tilling claws on a tilling shaft and tills the soil while reversing them, the upper part of the tilling part is narrow in width, long in the front and back direction, and has an inverted V-shape when viewed from the rear. In addition to covering with a main cover installed at an angle, the rear of the tilling section is covered with a guide plate made of a single plate, and a support rod is fixed upward to the upper part of the back of the guide plate. It is attached to a holder for attaching the work equipment provided on the machine frame so that its vertical position can be adjusted freely, and it protrudes diagonally upward from both left and right sides of the guide plate, and is formed in a substantially triangular shape when viewed from the side, and the tip side is rearward. 1. A soil removal guide plate for a tilling device, characterized in that a wing section is provided that retreats to the rear end, and the main cover and the wing section cover the rear upper part of the tilling section.