JPS6028196Y2 - Handling teeth in the thresholder - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in the handling teeth of a strong, flexible and long threshing shear used for threshing culms.

Conventionally, in a threshing shear used for threshing beans such as peanuts using the handling teeth on a rotating handling barrel, there is a tendency for culms to become entangled in the handling barrel, resulting in a significant decrease in threshing performance.

Furthermore, it was difficult to remove dust, which not only deteriorated the degree of selection, but also caused problems in working efficiency and wasted a lot of power, making it uneconomical.

The present invention is intended to accurately eliminate these conventional drawbacks, and aims to provide a handling tooth that can greatly enhance the threshing ability of the threshing shear and at the same time improve the degree of selection.

In the present invention, the front surface in the direction of rotation is bulged from the base to about two-thirds of the height of the handling tooth in the bladed handling tooth A that is implanted on the outer periphery of the handling barrel that is rotatably provided in the slider shear. A straight side 2 is provided on the upper end of the curved surface 1 on a parallel line on or near the radial line from the axial center of the handling cylinder, and the top of a small arc is provided on the upper end of the straight side 2. 3, and the rear surface 4 continuing from the top 3 has an arc-shaped curved side up to the base, and a blade portion 5 is provided on at least the straight side 2 and a part of the curved surface 1, and furthermore, the curved surface 1 and the rear surface 4 are provided with a blade portion 5. This is a handling tooth in a slider shear characterized by having a bulging portion 8 having a contact surface with the handling cylinder on the side surface between.

An embodiment of the present invention will be described with reference to the drawings. The front surface in the rotational direction of a handling tooth A made of a plate-shaped material implanted in a handling cylinder (not shown) installed in a slider shear is connected from the base to an involute. The curved surface 1 has a strong shape.

That is, the repellent part is formed from an involute curve whose base circle is a circle with a radius smaller than the radius of the handling barrel, and a straight straight edge 2 is provided that continues through a small arc 6, and its upper end is The apex 3 is formed into a small arc as much as possible, and the entire or part of the apex 3 is used as the blade part 5 to form the operating part, but if necessary, the blade part 5 may be extended to the curved surface 1 or the apex 3. You can also do that.

In this case, it is possible to choose whether or not to include the small arc 6 in the blade portion.

The rear surface 4 following the top portion 3 has an arcuate shape from the top portion 3 to the base to increase resistance, and if necessary, a portion of the rear surface 4 may also have a blade portion.

The handling tooth A is formed by press-forming a plate-shaped material, and the mounting plate part 7 to the handling cylinder is bent at the base thereof, and the circumference of the plate-shaped part is gentle, for example, upward from the base. It is preferable to form a bulging portion 8 between the curved surface 1 and the rear surface 4 and on the side opposite to the mounting plate portion 7 so as to form a continuous shape, thereby reinforcing the waist handling tooth A.

This bulging part 8 can be provided on the plate-like material in one or more parts in the front and back, or in the upper and lower parts, if the position and size of the bulge part 8 do not increase resistance in the rotational direction.

Further, although the mounting plate portion 7 is a bent piece, it may take any form as long as it can be fixed to the handling barrel.

Furthermore, since the handling teeth A effectively act on grain threshing from the top part 3 downward to about 1n, the straight side 2 advances within this range and forms the blade part 5.

Therefore, it is effective to make the curved surface 1 of the involute from the base of the handling tooth to the total height of about 273, and to arrange the bulge 8 within this range.

9 in the figure is a mounting hole.

The straight side 2 is shaped like a straight line standing upright with respect to the handling cylinder, but it is formed along a straight line or a diagonal line at a slight angle on or parallel to the radiation from the axis of the handling cylinder. It is.

That is, the straight side 2 is formed on a parallel line that coincides with or is close to a straight line perpendicular to the tangent of the handling cylinder, and the other components are attached accordingly.

Moreover, it is effective to make the radius of the top part 3 as small as possible to improve the penetration into the grain bundle and culm violet group and to improve the concentrated supply to the waist working part.

However, the material to be processed (thresholding) that is fed in a concentrated manner is sequentially handled and dropped by the handling teeth A, which are fixed and implanted in large numbers on the outer periphery of the handling barrel. Culm violet is cut with the blade part 5 of the straight side 2, greatly increasing work efficiency,
It is also possible to accurately prevent the particles from sticking to the handling teeth A and provide a stable shedding effect to the object to be treated.

With this invention, it is possible to increase the strength of the handling teeth themselves and the strength of the attachment of the handling teeth to the handling barrel, and it is possible to cut culms at the same time as threshing, increasing the ability to thresh and cut culms. In addition, the beam and groove effect that floats the concentratedly fed materials to a position where they can be effectively processed by the curved surface is properly applied, making the threshing process better and preventing violets from getting entangled. Since the grain bundles are quickly threshed and cut immediately, there is no decrease in threshing power, the wind selection effect is good, dust removal is easy, and the degree of selection is significantly improved, and the durability of the handling teeth is increased. There is no wastage of power required for threshing work, economical processing is possible, and the structure is simple and can be manufactured at low cost.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a front view, FIG. 2 is a side view, FIG. 3 is a rear view, and FIG. 4 is a plan view. 1... Curved surface, 2... Straight side, 3...
... Top, 4 ... Back, 5 ... Blade, 6 ... Small arc, 7 ... Mounting plate,
8...Bulge, 9...Mounting hole.

Claims (1)

[Scope of Claim for Utility Model Registration] ■ In the bladed handling tooth A implanted on the outer periphery of the handling barrel rotatably provided in the slider shear, the front surface in the direction of rotation is about 3rd of the height of the extracted tooth from the base. It has the shape of a curved surface 1 that bulges out to 2, and a straight side 2 is provided on the upper end of this curved surface 1 on a parallel line on or near the radial line from the axial center of the handling barrel,
Further, a small arc apex 3 is formed at the upper end of the straight side 2, and the rear surface 4 following the apex 3 is made into an arcuate curved side up to the base, and a blade portion 5 is formed on at least the straight side 2 and a part of the curved surface 1.
A handling tooth for a slider shear, characterized in that it is further provided with a bulging part 8 having a contact surface with a handling barrel on the side surface between the curved surface 1 and the rear surface 4. 2. The handling tooth according to claim 1, wherein the curved surface 1 forms the repelling portion as an involute whose base circle has a radius smaller than the radius of the handling barrel. 3. Claims 1 or 2 for registration of a utility model in which the handling tooth A is formed of a plate-shaped material, and a mounting plate portion 7 for attaching to the handling barrel is provided at the base by bending. Teeth treated as described in section.