JPS5811149Y2 - threshing machine - Google Patents

Description

[Detailed description of the invention] The present invention is the terminal end of the handling chamber (the end on the downstream side in the transport direction of the foot chain that clamps and transports the base of the culm).

same as below. ) is provided with a dust exhaust port from the handling chamber to the sorting chamber on the upper side wall of the threshing machine.

This type of threshing machine is designed to send the straw scraps thrown off by the rotational force of the handling cylinder into the sorting chamber through the dust outlet, but the direction of movement of the straw scraps is different from that of the handling cylinder. The direction of rotation of the dust, the axial direction of the handling cylinder, and the vertical direction gradually change, so each time the direction changes, the momentum of straw waste, etc. decreases, and there are cases where the feeding into the dust sorting room is not smooth. many.

As a means of resolving these inconveniences, a threshing machine equipped with a rotary body for feeding straw waste forcibly conveying straw waste to a dust outlet has been well known, but in this case,
Since a dedicated rotating body is provided inside the dust exhaust port, the rotational drive system becomes complicated, which tends to increase costs and increase the size of the aircraft.

Therefore, the present invention has a simple structure consisting of a combination of a rotary blade that uses the end of the handling cylinder as a rotational drive mechanism and a fixed blade that is not driven to rotate, thereby making it possible to smoothly feed straw waste, etc. It is.

An embodiment of the present invention will be described based on the drawings. Reference numeral 1 denotes a handling chamber of a threshing machine mounted on a combine harvester, in which a lower-class handling cylinder 2 is installed, and a swing sorting device 3 is installed below the crimp net C. and a sorting air passage 4 along its lower side.

Further, a sorting chamber 6 is formed behind the terminal end side wall 5 of the handling chamber 1 .

7 is a screw conveyor for taking out the first item; 8 is a thrower for returning the second item from the end of the screw conveyor 9 for transporting the second item into the handling chamber 1; the discharge port of the thrower 8 is It is provided at a location on the side wall 5 on the back side of the handling cylinder 2.

10 and 11 are straws provided at the terminal end of the swing sorting device 4.
A rack and a node line, 12 a suction port of a dust blower, and 13 a winch.

A dust exhaust port 14 from the handling chamber 1 to the sorting chamber 6 is formed at the upper end of the side wall 5, and the ceiling of the handling chamber 1 at a position in front of the dust exhaust port 14 is provided with a A fixed blade 15 is provided to guide straw waste thrown away by force into the dust exhaust port 14.

The terminal end of the handling barrel 2 is formed into a tapered conical shape, and the rear half of this conical portion protrudes rearward through a hole 5' provided in the side wall 5. A plurality of rotary blades 16 are installed in the circumferential direction on the outer circumferential surface for forcibly sending straw waste falling from the dust outlet 14 into the sorting chamber 6.

Longer handling teeth 17 are implanted in the front half of the conical portion located inside the handling chamber 1.

18 is a hanging wall that pivotally supports the handling cylinder shaft (not shown) of the handling cylinder 2.

Although the fixed blade 15 is fixed to the ceiling surface of the handling chamber 1, it may be provided so that its inclination angle with respect to the two axes of the handling cylinder can be adjusted.

As described above, according to the present invention, on the ceiling of the handling room 1,
A fixed blade 15 is provided to guide the straw waste to the dust exhaust port 14, and the terminal end of the handling barrel 2 is formed into a tapered conical shape, and this conical portion protrudes from the side wall 5 toward the sorting chamber 6. A rotary blade 16 is provided on the outer circumferential surface of this protruding portion to forcibly convey the straw waste falling from the dust exhaust port 14 into the sorting chamber 6, so that the straw waste is blown away by the rotational force of the handling cylinder 2. The dust is gradually turned toward the dust exhaust port 14 along the fixed blade 15 and is smoothly fed into the dust exhaust port 14.

Then, the straw waste that changes direction and falls downward from the dust exhaust port 14 is again urged by the rotating blade 16 and is sent into the sorting chamber 6 with force.

In this way, with a simple structure that does not require a special rotational drive mechanism, straw waste can be fed very smoothly and reliably.

In addition, since the straw waste is fed smoothly and reliably, even if the width of the sorting chamber 6 is equal to or narrower than the diameter of the handling cylinder 2, the straw waste can be fed sufficiently. It is also effective in downsizing threshing machines.

In particular, if the terminal end of the handling cylinder 2 located in the handling chamber 1 is also formed into a conical shape as in the embodiment, a wide space is formed at the terminal end of the handling chamber 1, and the threshed husk can be stored at the terminal end of the handling chamber 1. Damage to the shell culm when the material is discharged from the container can be reduced, and furthermore, the discharge port of the second material reducing thrower 8 is opened within the rotation locus of the handling teeth 17. , it is possible to improve the reprocessing efficiency of the second reduced product.

[Brief explanation of drawings]

The drawing is a longitudinal sectional side view illustrating an embodiment of the threshing machine according to the present invention. 1... Handling room, 2... Handling cylinder, 2a...
...Protruding portion, 5...Side wall, 6...
Sorting room, 14... Dust exhaust port, 15... Fixed blade, 16... Rotating blade.

Claims (1)

[Scope of utility model registration request] In a threshing machine that has a dust exhaust port from the handling chamber to the sorting chamber at the top of the side wall at the end of the handling chamber, the straw scraps etc. that are blown away by the rotation of the handling drum are removed from the ceiling wall of the handling chamber. In addition to providing a fixed blade to guide the dust port, the terminal end of the handling cylinder is formed into a tapered conical shape, and this conical portion projects from the side wall toward the sorting chamber, and the exhaust gas is attached to the outer circumferential surface of the projecting portion. A threshing machine characterized by being equipped with rotating blades for forcibly transporting straw waste, etc. that falls from a dust port into a sorting chamber.