JPS6031464Y2 - Top handling threshing machine - Google Patents

Description

[Detailed description of the invention] If the outer circumferential surface of the end of the supply port side of the conventional handling cylinder is formed into a conical shape as shown in FIGS. 4a and 4b to facilitate insertion of the culm, It is known to straighten the inserted culm with straightening teeth provided in the culm.

However, when threshing fallen or wet shell culms during reaping and threshing operations, a large amount of straw waste is generated in the conical part at the starting end of the handling drum and carried around, making it difficult to insert it into the handling chamber on the ear side. During this time, the base of the plant is forcibly conveyed by the foot chain and the pinning rail, so the culm becomes oblique, resulting in more culms being pulled out and more straw waste being generated.

As a result, an abnormal overload was applied to the handling barrel, and a large load was also applied to the straw cutting sickle, causing damage to the straw cutting sickle and distortion and damage to the receiving net.

In addition, a large amount of straw waste and second grains are fed into the oscillating sorting body, resulting in a reduction in sorting performance.

In this invention, the culm to be threshed was lying down,
Even if it is wet, it will not stagnate at the entrance of the handling cylinder and will smoothly transfer to the cylindrical part of the handling cylinder, that is, the area where the handling teeth are located, to improve the above-mentioned drawbacks.) This is intended to prevent grains from scattering from the supply port.
A part extending from the upper edge of the supply port to the lower surface of the starting end of the grain threshing plate that extends downward from the grain threshing plate and gradually moves downward in the direction of culm movement as the inner side extends from the stock side insertion part to the panicle side insertion part. The device is characterized in that a series of protrusions are provided that are inclined toward each other, and the lower surfaces of the protrusions are formed into a series of tapered surfaces.

The embodiment shown in the drawings will be explained below.
In Fig. 2a and Fig. 3a, 1 is a handling cylinder mounted on a shaft in a handling chamber 2, and a receiving net 3 is provided extending downward from the side opposite to the handling opening 4 of the handling chamber 2. A foot chain 5a and a clamping rail 5b are arranged side by side on the outside of the mouth 4.
The upper surface of the handling cylinder 1 is covered with a grain removal plate 6.

In addition, the starting end of the handling cylinder 1 is similar to the conventional one, with the combing teeth 7a.
... are formed on a protruding conical portion 1a, and the cylindrical portion at the back thereof is provided with handling teeth 7b.

The supply port 8 is constituted by an inlet plate 9 and the starting end of the grain threshing plate 6, and the handling port 4 side of the starting end of the grain threshing plate 6 has an inclination that gradually descends from a substantially horizontal edge toward point a. It is a guide surface 10, and the inner end point of the inclined guide surface 10 on the side where the tip is inserted is a grain removal plate 6 as shown in FIGS. 2a and 3a.
A protrusion 11a that protrudes downward by h from the lower surface C of the main part of
The protrusion 11a has a guiding surface 11 on its inner side.
As shown in Fig. 1a, a' gradually becomes wider as it slopes inward, forming a right triangle shape with the dot as its apex, and the base (widest part) The width corresponds to the width of the conical portion of the handling cylinder 1.

Therefore, a large part of the volume on the stump side of the culm, which is conveyed with the stump end held between the foot chain 5a and the clamping rail 5b, is located above and below the guide surface 10 at the supply port 8. It is inserted into the handling chamber 2 from the part with the larger width, and the ear side, whose volume gradually becomes smaller, is inserted into the handling chamber 2 from the part facing the protrusion 11a.

Since the handling drum 1 rotates so as to comb the culm from the stock end side to the tip side, the straw waste generated by being squeezed by the combing teeth 7a of the conical part 1a of the handling drum 1 is removed from the culm. Guide surface 11a of strip 11a
Since the grains are pressed against the guide surface 11a', the grains do not slide inward and become stagnant at the part facing the conical portion 1a of the handling barrel 1, and the grains rebounding randomly within the handling chamber 2 collide with the guiding surface 11a'. and returned to the handling room 2 without scattering outside the aircraft.

Next, other embodiments of the present invention will be explained with reference to Figs. It has a wide opening, and a cantilever support frame 12 provided at the upper part of the supply port 8 has an inner end extending from the inner end point of the guide surface 10 to the sugar part side, as shown in FIG. A protrusion 11b made of a dog-shaped plate body that is inclined towards the feeder is attached, and when viewed from the supply port 8 side, the protrusion 11b reaches the side corresponding to the tip insertion portion, as shown in Figure 2. As the guide edge 11b' protrudes from the lower surface of the grain removal plate 6 and approaches the conical portion 1a, the guide edge 11b' gradually protrudes inward and forms a right triangle shape when viewed from above, and the width of its base is the same as in the previous example. It is configured to approximately correspond to the width of the conical portion 1a.

Therefore, the stock part of the culm inserted into the handling chamber 2 from the supply port 8 is inserted from the part corresponding to the wide guide surface 10, and the tip side is not guided by the protrusion 11b and is inserted into the handling chamber 2. inserted into.

The combing teeth 7a are implanted in the conical portion 1a of the handling barrel 1.
As the handling barrel 1 rotates, the straw waste, ear fragments, etc. generated during combing are rapidly moved inward while being slid by the diagonal guide edge 11b' of the protrusion 11b. In addition, the grains that rebound randomly in the handling chamber are stopped by the protrusions 11b, turned inward, and prevented from scattering outside the machine.

In the figure, 13 is a cover, 14 is a straw cutting sickle, and a swing sorting body is installed below the receiving net 3.

As mentioned above, the present invention extends from the upper edge of the supply port to the lower surface of the starting end of the grain threshing plate that extends downward from the grain threshing plate, and gradually extends from the inner side from the stock side insertion part to the panicle side insertion part. A series of protrusions are provided that are inclined downward in the direction of culm movement, and the lower surface of the protrusions is formed into a series of tapered surfaces. The part can be easily inserted without being obstructed by the ridges,
The grain side with a smaller volume is not disintegrated by the lower surface of the series of protrusions as the combing teeth at the starting end of the handling cylinder rotate, and is smoothly guided and inserted in an orderly manner with extremely low resistance. The straw waste, which is most often generated in the conical part at the beginning of the handling barrel, is gradually tilted downward in the direction of culm movement from the stock end side insertion part to the panicle side insertion part. The catch is stopped by the inner side of the protrusion and rapidly moves inward into the handling chamber, so that it does not stagnate at the entrance of the handling chamber.

Therefore, even if a fallen culm or a wet culm that tends to generate a large amount of straw waste and ear breaks is fed, the culm can be smoothly inserted to the sugar part, preventing abnormal generation of straw waste and ear breaks, and removing the culm. It is possible to prevent overload on the handling cylinder and a decrease in sorting performance.

In addition, the grains bouncing around in the handling chamber are stopped by the series of protrusions and returned to the handling chamber, thereby preventing the grains from scattering from the supply port.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG.
, b is a plan view of the threshing section with the cover removed;
Figures 2a and b are front views, and Figure 3a is a front view. 4b is a sectional view of a main part, and FIGS. 4a and 4b are sectional views of a conventional example. 1... Handling cylinder, 1a... Conical part, 2.
...Handling room, 4...Handling port, 6...
Grain removal plate, 8... Supply port, 11a, llb...
...Protrusions.

Claims (1)

[Scope of utility model registration request] A part extending from the upper edge of the supply port to the lower surface of the starting end of the grain threshing plate that extends downward from the grain threshing plate and gradually moves downward in the culm movement direction as the inner side extends from the stock end side insertion part to the panicle side insertion part. A high-grade threshing machine, characterized in that a series of ridges are provided that are inclined toward the target, and the lower surface of the ridges is formed into a series of tapered surfaces.