JPH0783657B2 - Mobile thresher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is suitable for harvesting, for example, buckwheat, in which a large number of grains are produced from the upper part to the lower part of the stalk, for example, while standing on the field while moving on the field. It is characterized by threshing the state.

(Prior Art) It is well known in the patent gazette that many conventional so-called combine harvesters for cutting and threshing wheat and the like have been developed, but these are all known for cutting grain culms and automatically threshing ears. This is done for example, for example, Japanese Patent Publication No.
No. 9 gazette is provided with a threshing machine and a self-removing reaper and a normal type reaper that can be selectively attached to the thresher, and when the former is attached, only the tips of the tips that have carried the culms by the feed chain are threshed. When the latter is installed, the whole grain culm is supplied to the thresher to perform threshing, so that the crops can be harvested with high efficiency and low yield, corresponding to crops with different threshing conditions such as rice, wheat and beans. A versatile combine is shown that makes the work possible.

(Problems to be Solved by the Invention) In the above-mentioned conventional combine type, the grain culms are mowed, and the whole grain is thrown into the threshing machine or manually harvested and inserted into the threshing machine while holding it for threshing. In the threshing of buckwheat of the present invention, however, the buckwheat is a plant which is totally fruit-bearing in the stem leaf (base of the flower pattern) of the stem from the portion relatively close to the root to the tip of the culm, and thus Thus, it was inevitable to put the whole culm into the threshing machine. Moreover, buckwheat is generally sown in bulk, and at a height of 1 m or more, the stems alternate with each other and produce fruit as described above. In that case, the damage to the thresher was also dramatic, and there were many difficulties in classifying after threshing.

Therefore, in the present invention, the above-mentioned drawbacks are solved by threshing only the ears and pushing down and moving the stem portion to measure threshing.

(Means for Solving the Problems) In the mobile threshing machine for buckwheat of the present invention, a large number of threshing needles are planted on the peripheral surface of the body, and in front of the chassis, substantially orthogonal to the moving direction of the chassis. A pair of threshing drums arranged vertically in a vertical direction,
In a moving thresher having a wind tunnel that communicates with a fan formed at the rear of the chassis from the opening between the pair of threshing drums, each threshing drum has a lower end of the trunk part close to a field. Between the threshing drum and the field, there is further provided a root retainer having a rotary shaft substantially orthogonal to the moving direction of the chassis and a plurality of claws planted around the rotary shaft. The rotating shaft has a setting height such that the plurality of claws press the field when rotating, and is arranged in front of the chassis from the opening.

(Operation) The engine is started, and rotation is applied in the opening direction between the pair of vertical threshing drums, and the fan and the root retainer are rotated in the traveling direction.

However, when this threshing machine was advanced into the buckwheat field, the root retainer pressed down the roots of the buckwheat and the stem was sandwiched between a pair of threshing drums. , The pericarp and grain are sucked with the wind in the wind tunnel by the suction of the fan, and the grain is classified by falling weight, and because the pericarp is light, it is blown to the outside by the suction force of the fan. Then, the stems that have been threshed are pushed forward as the root retainer rotates, pass under the machine, and are plowed into the soil at the time of the next plow tillage.

Naturally, the pair of threshing drums, the root retainer, and the like are configured to be movable up and down so that they can be supported above the surface of the earth so as not to interfere with normal traveling of the threshing machine.

(Example) Next, the present invention will be described in detail with reference to an example of an embodiment shown in the accompanying drawings.

A swing shaft 3 is provided on a chassis 2 having traveling wheels 1, and an engine 4, a driving unit 5 and an engine 4 on the rear of the chassis 2 are provided.
The fan 6 rotated by the above, the wind tunnel 8 on the fixed side that surrounds the fan 6 and the outlet 7, and a drawer-like collection box 9 are provided on the lower bottom thereof.

A swing frame 10 is pivotally mounted on the swing shaft 3 so as to swing around the shaft 3, and a pair of threshing drums 12, 12 'are supported by the swing frame 10 at the front of the chassis 2. They are arranged side by side in a vertical direction with the axial direction being the vertical direction. The pulleys 13 and 13 'respectively rotate the engine-side pulley 16 and the counter-rotating pulley 16' to rotate them via belts 17 and 17 '. It is rotated in the direction of the arrow in FIG.

As is well known, a large number of threshing needles 11 and 11 'are planted in the body of the threshing drums 12 and 12', and these are surrounded, and a portion where the pair of threshing drums 12 and 12 'are close to each other is defined as an opening 15. Movable wind tunnels 8 ′ provided with intake covers 14, 14 ′ and connected to these and communicating with the opening 15 pass through one side of the chassis 2, and are connected to the fixed wind tunnel 8 and the connecting portion 15. It is connected via the ‘

Under the pair of threshing drums 12 and 12 ', a root retainer 19 having a large number of retainer claws 18 is formed in a wheel shape so that it can come into contact with a field. This is one of the pulleys, for example, pulley 13 via belt 17 ". Then, the speed is appropriately reduced to rotate the pulley 20 in the forward direction through the bevel gear 21. The root retainer 19 is a fork-shaped outside of the rotary type, and the root is sandwiched between the root and the field surface. A fixed type that moves forward and presses the root may be used.

A hoisting rod 23 is pivotally attached to one end of the carriage 2 with a pivot 22, and a tip end of the hoisting rod 23 is connected to a front portion of the swing rod 10 via a chain 24 and a piston is provided in the middle of the hoisting rod 23. A lifting device 25 of a type or a screw type is provided, and the lifting rod 23 can be moved up and down around the pivot 22 by rotation of pneumatic pressure, hydraulic pressure, or screw.

While traveling on a road or the like, the hoisting device 25 is used to push up the hoisting rod 23 to hoist the rocking rod 10 around the rocking shaft 3, and the threshing drum 1
2, 12 ', the covers 14, 14', the root retainer 19 and the like are lifted and the traveling wheels 1 are driven to travel. In the buckwheat field, in the harvesting work, the engine 4 is started, the lifting device 25 is used to lower the hoisting rod 23 so that the root retainer 19 is in contact with the surface of the field, and the pair of threshing drums 12, 12 '. In the direction of the opening 15, that is, in FIG. 1, rotate the drum 12 counterclockwise,
The drum 12 'is rotated to the right, and the root retainer 19 is also rotated through the belt 17 ", the pulley 20, and the bevel gear 21 in the traveling direction, that is, in the same direction as the wheel 1. Note that this positive rotation is not absolutely necessary. It may be a driven type that rotates with the movement of the chassis 2. At the same time, the fan 6 also starts to rotate.

Then, when the trolley 2 is moved into the buckwheat field by driving the traveling wheels 1, a pair of threshings in which the stems are arranged in a vertical shape while the stems, that is, the roots of the stems are pressed by the pressing claws 18. Drum 12, 12 '
The fruit is cut off from the stem by rotation of the drums 12 and 12 'bitten into the opening 15 of the fruit and separated into the pericarp (buckwheat) and the endosperm and embryo, which are wrapped in a thin seed coat, and both wind tunnel From 8 ', the heavy grain is carried by the suction force by the rotation of the fan 6 through the slightly flexible connecting portion 15' which fits with this, and the heavy grain is dropped and sorted in the middle and accumulated in the sampling box 9, Is light, and is discharged to the outside from the air outlet 7.

However, the stems that have undergone threshing are pushed down by the root retainer as the chassis 1 moves, remain in the field, and are plowed into the soil together with the peeled fruits described above during the next cultivation.

(Effect of the invention) Threshing drums are arranged in a vertical shape in parallel with each other in a standing tree shape,
Threshing of plants that set fruit from the tip of the stem to near the root like buckwheat, so that only the seeds are harvested and efficiently and quickly threshed, and the stem is pressed at its root and placed in the threshing drum. It is left in the field without being drawn in, and the peel and grain are sorted and collected by the airflow in the wind tunnel and are extremely efficient in harvesting and sorting.

[Brief description of drawings]

The drawings show an embodiment of the mobile thresher of the present invention. FIG. 1 is a plan view, FIG. 2 is a side view, and FIG. 3 is a front view. Reference numeral 2 ... Chassis, 3 ... Swing shaft, 4 ... Engine, 6 ... Fan, 8, 8 '... Wind tunnel, 10 ... Swing frame, 12, 12' ... Threshing drum, 14 , 14 '…… Intake cover, 15 …… Opening part, 19 …… Root retainer.

Claims (1)

[Claims] 1. A pair of threshing drums, in which a large number of threshing needles are planted on the peripheral surface of the body, and which are arranged vertically in front of the chassis in a direction substantially orthogonal to the moving direction of the chassis, and the pair of threshing drums. In a moving thresher having an air tunnel that communicates with a fan configured in the rear of the chassis from the opening between the drums, each of the threshing drums is arranged such that the lower end of the trunk is close to the field. , Between the threshing drum and the field further has a root retainer provided with a rotary shaft substantially orthogonal to the moving direction of the chassis and a plurality of claws planted around the rotary shaft, The rotary threshing machine for buckwheat is characterized in that the rotary shaft is installed at such a height that the plurality of claws press the field when rotating, and is arranged in front of the chassis from the opening.