JPS6345763B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a swinging shelf for a thresher that swings in a sorting chamber to separate grains and processed materials.

A combine threshing machine, an independent mobile type, or a stationary type threshing machine consists of a threshing device consisting of a handling barrel for threshing the tip of the grain culm, and a threshing device that removes the threshed grain, straw waste, culm pieces, and culm generated during threshing. It is also equipped with a sorting device for sorting the processed materials. After threshing, the grains and processed materials fall onto a sorting body supported on a swinging shelf that swings in the sorting room, and are sorted by the swinging of the swinging shelf and the sorting wind from the winnowing machine. .

The sorting body supported in the swinging shelf of this type of sorting device has conventionally consisted of a sorting body for grains, generally called a sorting net, and a sorting body for processed materials, called a strorack or chaff sieve. Ori,
The grain sorter is disposed below the grain sorter. The grains are sorted and collected either by falling directly from the handling room onto a sorting screen, or after being separated from the processed material and then falling from a chaff sieve onto a sorting screen. After being sorted, it is returned to the handling room for re-sorting as a second item.

When sorting the grain and the processed material in this way, when the long culm breaks generated during threshing are conveyed on the chaff sheave, they fall into the gap between the inclined plates of the chaff sheave, and the lower end of the culm ends in the lower part of the sorter. Sorting can sometimes be continued with objects stuck in the mesh of the screen, and subsequent objects to be sorted may get caught in this, hindering conveyance, or the meshes of the screening screen become clogged, reducing the sorting function. Conventionally, in order to avoid this, the inclined plate was formed into a dogleg shape to prevent the culm stubs from falling from the chaff sheave, but in this case, the sorting wind from the karaki winnow could not escape upwards. There was a problem in that the quality of the grains deteriorated due to dust and the like falling onto the sorting net and mixing with the grains.

The present invention has been made in view of the above points, and by tilting each inclined plate of the sorting body supported above the sorting net in the direction of the sorting net supporting plate, there is a gap between the inclined plates. To provide a swinging shelf for a threshing machine which eliminates the trapping of fallen culms, etc., prevents accumulation of materials to be sorted and clogging of a sorting net, and improves sorting performance. Embodiments of the present invention will be described in detail below with reference to the drawings.

1 to 3 show an embodiment of the swinging shelf according to the present invention, FIG. 1 is a partially cutaway side view of a threshing machine implementing this, FIG. 2 is a plan view of the swinging shelf, and FIG. Figure 3 is a cross-sectional view taken along line AA in Figure 2. In the figure, in a handling chamber 2 of a threshing machine 1, a handling barrel 4 equipped with a large number of spirally arranged handling teeth 3 on its circumferential surface is mounted on a shaft, and on the side of the handling chamber 2, A conveying endless body 5 and a clamping body 6, which clamp and convey the root part of the grain culm to be threshed by the handling cylinder 4, are disposed in opposition to each other. 7
is an endless transporting body that transports threshed grain culms, that is, waste straw. A handling chamber receiving net 8 is stretched below the handling barrel 4 and is formed concentrically therewith, and a dust exhaust port 9 is opened downward at the terminal end thereof.

In the sorting chamber 10 below the handling chamber 2, there is a swinging shelf 11 formed in a box shape that opens upward with left and right side plates 11a and a plate 11b as a bottom plate.
2 and a swinging arm 13 to support the rear end and center part, and is configured to swing in the front-rear direction, including some vertical movement, by the rotation of the eccentric cam 12. has been done. The plate body 11b of the swinging shelf 11 is generally called a grain pan in order to slide the grains falling through the mesh of the handling room receiving net 8, and is bent at the center of the lower end of the swinging shelf 11. It extends diagonally upward with a slight incline. What is indicated by reference numeral 12 is a sorting net for grain sorting, which is supported by the tip of the plate body 11b and is connected to both side plates 11.
The swinging shelf 11 is opened to the front above the tip of the sorting net 12. Above the sorting net 12, that is, below the dust outlet 9, two upper and lower stages of sorting bodies 13 and 14 are supported across the entire width of the swinging shelf 11, substantially parallel to the sorting net 12. Of these, the upper sorting body 13
is formed of a plurality of saw-toothed partition plates arranged in parallel in the width direction of the swing shelf 11, and is configured to transport long culm pieces bridged on the partition plates by swinging. There is. Further, the lower sorting body 14 is formed of a plurality of inclined plates 14a supported between both side plates 11a in parallel in the transfer direction of the sorted items shown by arrow B in the figure. The inclination angle of each of these inclined plates 14a is determined by a line connecting the upper end of each inclined plate 14a and the lower end of the inclined plate 14a on the downstream side in the transfer direction of the sorted material, that is, the line indicated by symbol C in FIG. The angle is set so as to avoid it and direct it toward the plate 11b. The sorting body 14 configured in this way transports the sorted material falling from between the partition plates of the sorting body 13 by swinging, and also transfers grains etc. from between the inclined plates 14a onto the sorting net 12 below. let it fall. A suction fan (not shown) is provided above the transfer end of the sorting body 14 to suck up light straw waste, dust, etc. from the sorted material and discharge it to the outside of the machine. 15
is a plurality of parallel sieve wires formed in a U-shape by wire rods, and the so-called 2 sieve wires that remain after sorting are
It is configured to allow items to fall between the lines.

Below the swinging shelf 11, there is a winnow 16 that is equipped with a plurality of blades and rotates in the direction shown by arrow D in the figure to blow up the sorted material, and a winnow that is formed in a spiral shape and transports the grains for collection. A No. 1 helical conveyor 17 for transporting a second object and a No. 2 helical conveyor 18 formed in a spiral shape for transporting a second object are mounted on shafts with their axes parallel to each other. At the end of the transfer of the No. 2 spiral conveyor 18, a No. 2 grain lifting machine (not shown), which is surrounded by a cylinder 19 and lifts the second grain, is coaxially provided.
The discharge port and the handling chamber 2 are connected by a No. 2 reducing cylinder 20 that returns the lifted No. 2 material to the handling chamber 2.

The operation of the threshing machine configured as above will be explained. The grain culm, whose root part is clamped by the endless transport body 5 and the clamping rod 6, is threshed by the handling teeth 3 of the handling cylinder 4, and the grain is passed through the mesh of the handling chamber receiving net 8 along with some straw waste, etc. pass through and fall. The fallen grains are plate 11
b, slide toward the sorting net 12, and after being sorted on the sorting net 12 by the swinging of the swinging shelf 11 and the sorting wind from the winnower 16, they fall onto the No. 1 spiral conveyor 17 and are transferred and collected. be done.

On the other hand, materials to be processed such as straw waste, ear fragments, and pickles generated during threshing are transferred within the handling chamber 2 and fall onto the sorting body 13 as waste materials from the dust exhaust port 9. Among the waste materials, long culm stubs and the like are bridged by the partition plates of the sorting body 13 and transferred, and other dust materials and long culm stubs and the like that have fallen between the partition plates fall onto the sorting body 14. The fallen processed material is sorted by the shaking and the sorting wind from the winnower 16 while being transferred by the swinging of the swinging shelf 11, and the separated grains are transferred onto the sorting net 12 from between the inclined plates 14a. After falling and joining the grains being sorted, they are sorted and collected. In addition, light straw waste, dust, etc. are sucked up by a suction fan and discharged outside the machine. The second grains remaining as a result of the sorting fall between the lines of the sieve wire 15 and are transferred onto the second spiral conveyor 18, and then conveyed to the handling chamber 2 in the second return cylinder 20 by the second grain lifting machine, where they are returned. and the above-mentioned sorting is repeated.

Among the sorting operations performed in this way, in the sorting on the sorting body 14, long culm stubs that have fallen from between the partition plates of the sorting body 13 may stick between the inclined plates 14a. If you stand with the stock head down, the stock head will try to pierce the sorting net 12. However, in this device, the inclined plate 14a
Since the direction of inclination of the culm was made to avoid the sorting net 12 and go toward the plate 11b as shown by the chain line C, the culm stub falls down at a large incline, falls down the second falling path, and repeats the sorting. Even if the stocker falls down or does not fall down, the stockholder stands on the plate body 11b and does not clog the sorting net 12 or interfere with the transfer of the sorted material.

As is clear from the above description, according to the present invention, in the swinging shelf of a threshing machine, each inclined plate 14a of the sorting body 14 supported above the sorting net 12 is moved in the direction of the sorting net supporting plate 11b. By slanting the culm toward the slanted plate 14a, even if a long culm stub falls between the slanted plates 14a, it will not pierce the sorting net 12.
Grain leakage is promoted without clogging of the sorting net 12, and the sorting efficiency is improved by smoothly transferring and sorting without interfering with the transfer of the sorted material.

[Brief explanation of the drawing]

1 to 3 show an embodiment of a swinging shelf for a threshing machine according to the present invention, FIG. 1 is a partially cutaway side view of a threshing machine implementing this, and FIG. 2 is a plan view of the swinging shelf. FIG. 3 is a sectional view taken along AA in FIG. 2. 1... Threshing machine, 11... Rocking shelf, 11b... Board, 1
2... Sorting net, 14... Sorting body, 14a... Inclined plate.

Claims (1)

[Claims] 1. A sorting body consisting of a plurality of inclined plates arranged in parallel in the direction of transfer of the sorted objects, and a sorting net supported by the plate body and protruding in the direction of transfer of the sorted objects substantially parallel to the sorting body below the sorting body. and wherein each of the inclined plates is inclined so that a line connecting the upper end thereof and the lower end of an adjacent inclined plate on the downstream side in the direction of transporting the sorted material is oriented toward the plate body. Swinging shelf.