JPS6224406Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention relates to a crushing blade that is attached to a rotating shaft such as a rotor shaft and used mainly for puddling work.

[Conventional technology]

As a conventionally known purge rotor, there is one in which crushing blades are attached to the periphery of a rotating shaft (rotor shaft) that is mounted on the rear part of a tractor and is pivotally supported in a substantially horizontal direction.

[Problem that the invention attempts to solve]

This soil crushing blade not only crushes soil clods during plowing work, but also prevents grain culms, roots of previous crops, compost, etc. mixed in the soil from getting entangled, and allows them to be buried (plowed) into the soil. In addition, it is desirable to generate an appropriate levitation force without digging into the mud or sinking due to the rotation of the rotor shaft.

[Means and actions to solve problems]

The present invention has been made in response to the above-mentioned request, and the crushing blade has its base end fixed to a rotating shaft, and the axial center of the rotating shaft increases as it goes rearward with respect to the rotating direction of the rotating shaft. By comprising a stay having a curved outer circumferential edge that gradually increases the distance from the stay, and a beating plate having a predetermined width and having an inner circumferential surface fixed to the stay along the outer circumferential edge, Strong and
The soil crushability during plowing work is good, and there is little entanglement of grain culms, roots of previous crops, compost, etc., and these are buried so that they are not exposed on the surface of the rice field, and the crushing blades are crushed by the rotation of the rotating shaft. To provide a crushing soil blade for plowing that acts so that the entire rotor floats up without sinking into muddy soil by the reaction force of hitting the cultivated soil, keeps the plowing depth constant, and improves the maneuverability of a tractor. This is what I am trying to do.

【Example】

The present invention will now be described in detail with reference to the drawings, in which: FIG. 1 is a rotor shaft of a tiller rotor supported in a substantially horizontal direction;
The soil crushing blade 2 has a base fixed to the rotor shaft 1,
The rotor is constructed of a stay 3 having a predetermined height in the axial direction, and a beating plate 4 having a predetermined width, which extends along the outer periphery of the stay 3 and has a center of the width of the inner periphery fixed to the outer periphery. The beating plate 4 has a disentangling property in the rotation direction of the rotor shaft 1, and an intersection point connecting an arbitrary point P on the outer periphery and the axial center O of the rotor shaft 1 has a positive angle α in the direction opposite to the rotation direction. In the drawing, one soil crushing blade 2 is attached to the rotor shaft 1, but another one may be attached to the same axial surface, and further, the blades may be attached at an appropriate interval in the longitudinal direction of the rotor shaft 1 and in an appropriate arrangement. The tilling rotor constructed in this way is attached to the rear of a tractor (not shown) and introduced into a flooded rice field after rough plowing to perform tilling work. When the rotor shaft 1 rotates in the direction of the arrow, the beating plate 4 of the soil crushing blade 2
The paddy field is rubbed against the surface of the field, and the soil is crushed and plowed over a wide area of a specified width. At this time, the culms, stalks and roots of the previous crop, etc. that are mixed in the cultivated soil are removed.
The compost, etc., is pushed into the soil and buried without being exposed to the surface, and does not get entangled with the rotor shaft 1, the stay 3, the beating board 4, etc.
The reaction force of the beating plate 4 hitting the rice field surface and passing through the soil acts on the rotor shaft 1 in an upward direction, lifting the tilling rotor so that it does not sink into the muddy soil. As a result, the tilling rotor moves while being maintained at a constant height above the rice field surface, tilling to a nearly constant depth, and no unnecessary load is placed on the tractor, making it easy to operate and maneuverable. Furthermore, the beating plate 4 is supported by the stay 3, making it strong and sturdy.

[Effect of the idea]

As explained above, according to the crushing soil blade of the present invention, the beating plate 4 is fixed along the outer periphery of the stay 3 whose base end is fixed to the rotor shaft 1.
Since the beating plate 4 is long in the circumferential direction and supported by the stay 3, it is strong and durable, and since it is in contact with the cultivated soil over a wide area of a predetermined width, the soil crushability is good.
Grain culms, roots from the previous crop, compost, etc. mixed in the tilled soil are buried from the rice field without getting entangled, creating a rice field suitable for rice transplanting.In addition, the reaction effect when the pounding board continuously hits the rice field This has excellent effects, such as lifting the purge rotor and plowing to a nearly constant depth, as well as improving the operability and maneuverability of the tractor towing it.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a side view thereof. 1... Rotor shaft, 2... Crushed soil blade, 3... Stay, 4... Beating board.

Claims (1)

[Scope of utility model registration request] A soil crushing blade which is attached to the axial circumference of a rotating shaft supported in an almost horizontal direction and is used primarily for tilling work, characterized in that the soil crushing blade comprises a stay having a curved outer peripheral edge whose base end is fixed to the rotating shaft and whose distance from the axis of the rotating shaft gradually increases as it moves rearward in the direction of rotation of the rotating shaft, and a beating plate having a predetermined width and whose inner peripheral surface is fixed along the outer peripheral edge of the stay.