JPH0745121Y2 - Tillage treatment device for rotary working machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to a residual tillage treatment device for a rotary working machine capable of performing residual tillage treatment under a tilling case.

[Prior Art] Conventionally, as shown in FIG. 4, a rotary shaft (2) fixed with a spiral blade (1) is hung vertically below a lower part of a tillage case (3) to allow residual tillage treatment. In the rotary working machine configured as above, the rotary shaft (2) is vertically hung from the bearing portion (4a) at the lower portion of the tillage case (3).

[Problems to be solved by the invention] Therefore, as shown in FIG. 4, the height at which the tillage treatment is performed by the spiral blade (1) while traveling in the direction indicated by the arrow (a) becomes H ₁ . The layer of residual tillage above the sled to the ground surface becomes thick as indicated by L, which causes a large pulling resistance of the rotary working machine, resulting in poor workability. .

[Means for Solving the Problem] The present invention solves such a problem and enables the residual tillage treatment to be favorably performed. Therefore, the present invention is provided at the front lower corner of the tillage case. The rotary shaft is vertically slanted from the bearing to the front, rear and height.

[Operation] Therefore, the rotary shaft and the spiral blade inclined to the front, rear, rear, and high height allow the residual tillage treatment to a higher position than the conventional type, and the thickness of the residual tillage layer above it becomes thin. Therefore, it is possible to reduce the pulling resistance of the rotary working machine and perform the rotary work with good workability.

[Embodiment] Next, an embodiment of the present invention shown in FIGS. 1 to 3 will be described.

(B) is a management machine having wheels (6), a mission case (7), an engine (8), a steering wheel (9), etc., and a rear hitch (10) behind the management machine (B).
The rotary working machine (A) connected via the above comprises a transmission case (7) and an upper input case (3a) of a tilling case (3) in which the tilling claw shafts (5) (5) are projected on both sides. A transmission case (11) is used for power transmission connection, and a rotary cover (12) is attached to the upper side of the transmission case (11) to form a conventional structure.

A bearing portion (4) directed downward to the front side is projectingly provided at a front lower corner of the tilling case (3), and a bevel gear (13) driven from above is provided in the tilling case (3). A rotating shaft having a bevel gear (14) which meshes with a bevel gear (13) and drives both tillage claw shafts (5) and (5), and a bevel gear (15) which meshes with the bevel gear (14) is fixed to the upper end. (2) is fitted to the bearing portion (4) so as to be inclined forward and backward and rearward at an angle of θ, and the upper portion (1a) has an outer peripheral surface of the bearing portion (4) on both sides of the rotating shaft (2). The spiral blades (1) and (1), which are enlarged and extended so as to approach each other, are symmetrically fixed and configured.

In the figure, (16) indicates a tillage claw.

Therefore, in a state in which the machine body advances in the direction of the arrow (a) to perform the rotary work and the residual plowing treatment on the lower side of the tilling case (3) by the spiral blades (1) and (1), the spiral blades ( 1) Due to (1), residual tillage treatment can be performed up to a height H ₂ higher than that of the conventional type. Therefore, the thickness L ₁ of the residual tillage layer above it becomes thinner than that of the conventional type, and the residual tillage is reduced. The pulling resistance of the rotary working machine (A), which is the cause, is reduced as compared with the conventional type, and the rotary work can be performed with good workability.

[Effects of the Invention] As described above, the present invention enables the residual tillage treatment to a position higher than the conventional type by the inclined rotary shaft (2) and the spiral blade (1), and the residual tillage above the conventional type can be performed. Since the layer can be made thinner than the conventional type, the traction resistance of the rotary working machine can be reduced to perform the rotary work with good workability, and the inclined rotary shaft (2) and the spiral blade can be used. Due to (1), the pulling resistance is reduced, and the residual tillage treatment can be performed reliably and satisfactorily, which is advantageous in that it can be suitably implemented with a simple structure.

[Brief description of drawings]

FIG. 1 is a side view of a main part of an embodiment of the present invention, FIG. 2 is a side view of a rotary working machine, FIG. 3 is a sectional view taken along line III-III of FIG. 1, and FIG. It is a side view of a conventional type. (1) …… Spiral blade, (2) …… Rotating shaft (3) …… Tillage case, (4) …… Bearing part

Claims (1)

[Scope of utility model registration request] 1. A rotary working machine constructed so that a rotary shaft (2) having spiral blades (1) fixedly installed is hung below a lower part of a tillage case (3) to allow residual tillage treatment.
Residual tillage characterized in that the rotary shaft (2) is vertically inclined from the bearing portion (4) provided at the lower corner of the front part of the tillage case (3) to the front low rear high. Processing equipment.