JPS5813124B2 - rotary tillage method - Google Patents

Description

[Detailed Description of the Invention] When paddy fields are tilled using a rolling tiller, in wet rice fields the plowing part sinks into the soft ground, while in dry fields it is difficult to slide over the hard surface of the ground. It is not possible to fully till paddy fields without using special tillage equipment.

The present invention is a method that solves this difficulty and completely cultivates wet rice fields and dry rice fields in the same cultivation area.

To explain the present invention with reference to the drawings, four blade plates 2 are fixed radially along the axial direction of the rotary shaft 1 in several embodiments.

A sheath tube 3 is provided on each blade plate 2, and the base of a tiller 4 is inserted and fixed therein.

In this case, the diameter of the rotating shaft 1 is 76.3 mm, the length l from the center M of the rotating shaft to the free end of the blade plate 2 is so mm, and the angle α between Z and the blade plate 2 is 30τ of the blade plate 2. The width from the base to the free end is preferably 55 mm, and the radius of rotation of the tiller 4 about M is preferably 200 mm.

However, in the present invention, as shown in FIG. 1, in the case of hard dry fields, the rotating shaft 1 is rotated quickly so that the blade plate 2a adjacent to the tiller 4 that cuts into the soil does not come into contact with uncultivated land. The blade plate 2a enters the ground through the space created by cutting out the cultivated land, and the rotating shaft 1 rotates smoothly.

However, in this case, since the forward distance of the machine per one revolution of the tilling blade 4 is short, the tiller is cut into small pieces, so even hard soil can be easily tilled without resistance, and the cut small clods are released to the rear of the tilling section. However, even when this is stirred by the vane plate 2a, the resistance that the rotary shaft 1 receives is small, and the topsoil and deep soil are mixed well to form a uniform soil.

In addition, as shown in Fig. 2, in the case of soft wet fields, the rotating shaft 1 is rotated slowly so that the blade plate 2a adjacent to the tilling knife 4 that cuts into the ground is brought into contact with the surface of the cultivated land. 2
When a pushes against the ground surface, it creates buoyancy in the tilled area and does not sink into the soft ground.

However, in this case, the soft soil cut by the tiller 4 cut into the ground is pushed by the adjacent blade plate 2a and cut out as a clod, and the cut clod is thrown backward and turned upside down.

Furthermore, since the forward distance of the machine per rotation of the tiller is long, the cut earth clod is large, and since it is turned upside down, it weathers well and becomes fertile soil.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the present invention in a dry field, and FIG. 2 is an explanatory diagram of a wet field, with some tillers omitted in both cases. 1 is the rotating shaft, 2 and 2a are the blades, and 4 is the tiller.

Claims (1)

[Claims] 1 Several blades are fixed radially along the axis of the rotating shaft, and a tilling knife is attached to each blade.In the case of dry fields, the rotating shaft is rotated quickly and the blade is attached adjacent to the tilling knife to cut into the soil. Avoid touching the tilling blade with the uncultivated land and agitate the cut-out soil, and in the case of wet rice fields, rotate the rotary shaft slowly and place the blade adjacent to the tilling blade on the surface of the cultivated land. Contact rotary tillage method.