JPH0423387Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a screw-type threshing machine, and more particularly, to a screw-type threshing machine having a handling barrel with screw blades arranged around its outer periphery.

(Prior Art) Conventionally, in this type of screw type threshing machine, for example, as shown in FIG. In addition, a plurality of plate-shaped discharge vanes C protruding in the radial direction are provided, and while the discharge vanes C scrape the culm, the culm is removed from the culm opening of the handling chamber located below the rear end of the handling cylinder B. There are known devices configured to discharge to the outside.

(Problem to be solved by the invention) However, in such a conventional threshing machine, since the discharge vane C is formed from a plate, the discharge vane C due to the rotation of the handling barrel B. During rotation, a wind raising action is generated by the discharge vane C at the discharge culm portion of the handling chamber, and this wind raising action causes the problem that the discharge culm is biased in one direction and discharged.

Further, according to the discharge vane C made of the plate described above, the lump-like discharge culm tends to get caught between the tip of the discharge vane C and the wall surface of the handling chamber, and therefore, an abnormal load is not applied to the discharge vane C. There was also a problem in that the discharge vane C and the wall surface of the handling chamber were deformed.

The purpose of the present invention is to prevent the occurrence of wind blowing by using a discharge vane made of bar material, to uniformly discharge the culm from the discharge culm opening, and to prevent the discharge vane and the wall of the handling chamber from deforming. The aim is to prevent this.

(Means for Solving the Problems) The present invention provides a screw-type threshing machine having a handling drum 2 having screw blades 2a around its outer periphery. The present invention is characterized in that a discharge vane 10 is attached to the handling cylinder 2 so as to protrude outward in the radial direction.

(Function) Therefore, the discharge culm transferred to the discharge side of the handling cylinder 2 by the screw blade 2a of the handling cylinder 2 is scraped to the discharge culm opening by the discharge blade 10 made of a bar material without generating an air blowing action. The exhaust culm can be discharged from the exhaust culm port to the outside in a wide range and uniformly, and since the discharge blade 10 is a bar material, the blade 10 and the wall of the handling room can be easily discharged. This also reduces the possibility of lumpy culms being caught in between.

(Embodiment) Fig. 3 shows a screw-type threshing machine applied to a general-purpose combine harvester. 1 is a main body casing of the screw-type threshing machine, and a handling chamber 3 is provided in the upper part of the casing 1. A handling cylinder 2 having screw blades 2a spirally wound around the outer periphery thereof is rotatably supported inside the handling chamber 3, and a crimp net 30 is provided at the lower part of the handling chamber 3, and behind the crimp net 30, the handling cylinder 2 is provided with a While disposing a discharge culm port 31 on the discharge side of the body 2,
A feed pan 41 is placed below the crimp net 30.
A swinging sorting device 4 consisting of chaff sheaves 42, 43, a grain sheave 44, etc. is swingably supported via a support arm 45, and the first conveyor 5 and the second conveyor are placed at a lower position of the swinging sorting device 4. A conveyor 6 is provided, a sorting fan 7 is provided in the front position of the sorting device 4, a suction fan 8 is provided in the rear position, and a pre-cleaning fan 9 is provided in the upper front part of the sorting device 4. It is.

In this way, the harvested crops supplied into the handling chamber 3 are transferred to the screw blades 2 of the handling barrel 2 in the handling chamber 3.
The culm is threshed by a and screwed into the screw blade 2.
a to the discharge side of the handling cylinder 2 and the discharge culm opening 3.
1 to the outside, while the crimp net 30
The grains falling from the ground are sorted by the oscillating sorting device 4, and among the grains sorted by the sorting device 4, the first grains are fed from the conveyor 5 to a shell grain tank (not shown) and stored there. Then, the second grain is taken out from the tank to the outside, and the second grain is supplied to the handling barrel 2 again via the grain thrower 61 provided on the side of the second conveyor 6, and the straw waste etc. are taken out from the suction fan 8. I try to drain it outside.

Therefore, in the screw-type threshing machine configured as described above, a discharge vane 10 made of a plurality of rods is attached to the outer periphery of the discharge side of the handling cylinder 2 so as to protrude outward in the radial direction of the handling cylinder 2. It is.

Specifically, as shown in FIGS. 1 and 2, a plurality of discharge vanes 10 are attached to the outer periphery of the cylinder shaft 11 at predetermined intervals in the axial direction of the cylinder shaft 11 so as to protrude outward in the radial direction, The cylindrical shaft 11 is rotatably attached to the outer periphery of the intermediate portion of the U-shaped fixture 12,
This fixture 12 is fixed to the outer periphery of the discharge side of the handling cylinder 2 by means of fixing means such as a nut 13 along the axial direction of the handling cylinder 2 and protruding outward in the radial direction.

A protection plate 14 having a V-shaped cross section is installed between the flange 12a provided on the mounting tool 12 and the handling barrel 2, and covers the front side of the mounting tool 12 in the rotational direction. This is to prevent dust and waste culm from entering the gap between the pipe and the pipe and clogging it.

Further, at the rear position in the rotational direction of the attachment 12 in the handling cylinder 2, a rubber material is mainly used to reduce the collision force between the discharge blade 10 and the handling cylinder 2 when the discharge blade 10 swings backward in the rotational direction. Elastic body 1 consisting of
5 is attached.

The present invention is constructed as described above, and during the threshing operation, the rotation of the handling drum 2 causes the discharge blades 10 to be moved in the radial direction of the handling drum 2 from the lodging position shown by the dotted line in FIG. The handling cylinder 2 is swung so as to stand up outward, and in this upright state, the rotating discharge blade 10 causes the screw blade 2a to remove the handling cylinder 2.
The exhaust culm transferred to the discharge side is pushed into the lower exhaust culm opening 31 and discharged to the outside from the exhaust culm opening 31. At this time, since the discharge vane 10 is made of a bar material, the rotation of the discharge vane 10 does not cause wind blowing action at the exhaust culm opening 31. The discharge culm opening 3 is not discharged in one direction.
1 can be discharged uniformly over a wide range.

Furthermore, since the discharge vane 10 is a bar material,
There is almost no possibility that a lump of discharge culm is caught between the blade 10 and the wall surface of the handling chamber 3, and even if an abnormal load is applied to the discharge blade 10, the cylinder shaft 11 As a result, an abnormal load is not applied to the discharge vane 10 or the wall surface of the handling chamber 3, and the discharge vane 10 or the wall surface of the handling chamber 3 is not deformed.

(Effect of the invention) As described above, the present invention has two screw blades on the outer periphery.
In a screw-type threshing machine having a handling drum 2 having a circumference of the handling drum 2, a discharge vane 10 made of a plurality of bars is provided on the outer periphery of the handling drum 2 on the discharge side so as to protrude outward in the radial direction of the handling drum 2. Since the culm is attached, the culm transferred to the discharge side of the handling cylinder 2 can be scraped into the culm opening by the discharge vane 10 made of a bar without generating an air blowing action. , it is possible to uniformly discharge the discharge from the discharge culm to the outside in a wide range and in a uniform manner.Furthermore, since the discharge blade 10 is a bar material, there is no lump of waste between the blade 10 and the wall of the handling chamber. If the culms get caught and deform the discharge blade 10 or the wall surface of the handling chamber, it is possible to reduce the damage caused by the culms.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view showing the mounting structure of the discharge vane to the handling barrel in the screw type thresher of the present invention, Fig. 2 is a partially cutaway side view of the screw type threshing machine of the present invention, and Fig. 3 is a partially cutaway side view of the screw type threshing machine of the present invention. A vertical side view, FIG. 4 is an explanatory diagram of a conventional mounting structure of a discharge vane. 2... Handling cylinder, 2a... Screw blade, 10...
...Discharge vane.

Claims (1)

[Scope of utility model registration request] In a screw-type threshing machine having a handling drum 2 having screw blades 2a around its outer periphery, a discharge blade 1 made of a plurality of bars is provided on the discharge side outer periphery of the handling cylinder 2.
A screw-type threshing machine characterized in that a screw-type thresher is attached to the handling cylinder 2 so as to protrude outward in the radial direction.