JPH0555090B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a swing sorting rack for a threshing machine that sorts threshed grains threshed in a threshing room while swinging.

[Problem that the invention seeks to solve]

In order to withstand the vibrations of swinging sorting shelves, the structure of the shelf frame must be designed with strength and vibration resistance in mind.
An integral construction with rigidity is desirable. In addition, inside the shelf frame, a large number of rack plates, which have fulcrums on the left and right side frames and are installed to adjust the sorting feed speed for threshing and sort the grains, are simultaneously and uniformly tilted around the fulcrums. This is even more necessary when a complex configuration is required.

In addition, the swinging sorting shelf is installed with a slight gap between the left and right side walls of the threshing machine, and when the grain is being threshed and sorted, straw waste enters this gap, and the swinging sorting shelf located in this gap The mechanism for pivotally supporting and interlocking the rack plates that adjust the sorting feed angle of the rack plate is likely to become clogged with straw, making the operation of adjusting the feed angle of the rack plates difficult or inoperable.

[Means to solve the problem]

In this invention, a rack plate 3 that can freely adjust the swinging feeding angle of the threshed material is interposed between the left and right side frame parts 2, 2 of a swinging frame 1 that swings back and forth, and these swinging frames 1 A pin 4 inserted from the outside of the side frame 2 is pivotally supported over the overlapping portion between the inner surfaces of the side frames 2, 2 and the left and right end surfaces of each rack plate 3. A push plate 6 for attaching the head 5 to the upper side of the swing frame 1
The threshing machine's swinging sorting shelf is configured with a presser to prevent it from slipping out.

[Effect]

When assembling each rack plate 3 to the swing frame, the rack plate 3 is interposed between the left and right side frame parts 2, 2 of the swing frame 1 assembled integrally, and the side frame parts 2,
2 and the left and right end surfaces of the rack plates 3 are overlapped, and a pin 4 with the head 5 facing outward is inserted from the outside of the side frame parts 2, 2 through this overlapping portion, and a pin 4 is inserted into each rack plate 3 in the same manner. After the pin 4 is inserted and supported by the side frames 2, 2, a press plate 6 that presses the outer head 5 of the pin 4 is attached to the mounting part on the outer side of the upper part of the swing frame 1 to prevent the pin 4 from coming off. , each rack plate 3 can be easily assembled to the swing frame 1.

When the assembled sorting swing shelf is attached to a threshing machine and the threshing products are sorted while swinging, the pin 4
The head 5 is held down by the push plate 6 to prevent it from coming off, and it is covered from above, so that the pin 4 does not come out, and the rack plate 4 supported by the pin 4 is When the swing feed angle is adjusted, it moves around the pin 4, and the feed angle is adjusted to an appropriate value to carry out the sorting action. In addition, since the vicinity of the head 5 of the pin 4 is pressed down from above by the push plate 6 to block the straw waste, the straw waste can be removed from the pivot part of the rack plate 4 or the adjustment part that can freely adjust the swing feed angle. The rack plate 4 can be adjusted smoothly.

〔Effect of the invention〕

According to the structure of the present invention, when assembling the swing frame 1 and the rack plate 3, the pins 4 are inserted from the outside into the overlapping portions of the swing frame 1 and the right and left end surfaces of the rack plates 3, and the rack plates 3 are assembled together. Since each pin 4 to be supported can be held down by a single long press plate 6 extending in the front-rear direction of the swing frame 1, assembly and disassembly is simplified, and complex configurations can be easily assembled and disassembled, which is convenient. .

Further, the push plate 6 is provided with a mounting portion on the outer side of the upper part of the swing frame 1 located above the five rows of outer heads of each pin 4, and hangs down between the outer surface of the swing frame 1 and the inner surface of the push plate 6. The head 5 of each pin 4 can be wrapped around the head 5 of each pin 4 in the gap formed from the outside, and can be prevented from coming off. It is effective in preventing operational failures caused by straw and dust clogging the operating parts.

〔Example〕

In the illustrated example, the threshing machine is mounted on a combine, and the front threshing chamber 7 is equipped with a handling barrel 8 having handling teeth, and the lower side of the front and rear chamber walls 9 is a grain culm inlet. - An outlet is opened, and a sorting net 10 is stretched below the handling drum 8, and a grain culm conveying chain 11 is provided on the side of the threshing room.

On the rear side of the threshing room 7, a conveyor belt 13 and a cutter 14 are installed in the shedding room 12 for processing and discharging the threshed culms.
is provided internally, and a discharge port 15 is provided at the lower part of the rear end.

A swinging sorting shelf consisting of a swinging frame 1, a rack plate 3, etc. is provided at the bottom of the threshing room 7, and a fan 16 and a fan are installed at the bottom for sorting the threshed material by wind. Big grain outlet 17, second grain outlet 18
has been established. 19 is a cross flow fan.

The swinging sorting shelf is constructed by placing the side frames 2, 2 of the swinging frame 1 along the inside of the left and right side walls 20 of the threshing machine on the lower side of the threshing chamber 7 in the front-rear direction A, and between the side frames 2 and the side walls of the threshing machine. 2
A corrugated plate portion 21 is installed with a gap B between the corrugated plate portion 21 and the upper portion of the swinging frame 1 in the swinging feed direction C from the front side to the rear side in order to transfer and sort the threshed grains. The three rack plates and the sawtooth plate part 22 are arranged in this order.

The swinging frame 1 is formed into a rectangular planar shape by integrating the front and rear side frame parts and the left and right side frame parts 2, 2, and the left and right side frames 2 have a hole 23 for pivotally supporting the rack plate 3, and a hole 23 under this. A pair of elongated holes 24 are provided on the sides, and the rack plate 3 is configured to guide the lower side of the rack plate 3, which moves vertically around the elongated holes 24, along the elongated holes 24. 24 are arranged in a row in the front-back direction A.

Additionally, the upper portions of the side frames 2, 2 are bent outward and a seal 25 made of resin is provided to seal the gap formed between the left and right side walls 20, 20 of the threshing machine. At the same time, an attachment hole 26 for attaching the push plate 6 is provided.

Also, the side frame portion 2 of the portion where each rack plate 3 is provided,
A sorting net 27 is installed to connect the left and right lower ends of the grains 2 and to sort out the grains.

The rack plate 3 is composed of a rectangular plate, and a pair of upper and lower recesses into which the pin 4 is inserted are formed on the rear side of the left and right ends of the rack plate 3 in the swinging feed direction when attached to the swinging frame 1. The pin 4 insertion hole 28 is formed by fixing the plate.

The pin 4 has outer heads 5 of a pair of upper and lower parallel bars.
are connected to form a U-shape, one pin 4 is inserted into the hole 23 provided on the upper side of the swing frame side frame parts 2, 2 to pivotally support the rack plate 3, and the other pin 4 is connected to the It is configured to be inserted into the hole 24 and to guide the lower side of the rack plate 3 along the length 24.

The push plate 6 is removably fastened to the mounting hole 26 provided in the upper part of the side frame portions 2, 2 of the swing frame 1 with bolts and nuts, and bulges outward at the lower side of this mounting and then hangs downward. It is provided to cover and press the head 5 of each pin 4.

The interlocking mechanism that adjusts the swinging feed angle of each rack plate 3 is an interlocking rod 29 having holes at the same intervals as the holes 23 of the rack plate 3 pivots arranged in the side frames 2, 2 of the swing frame. Insert the pin 4 through the outer surfaces of the left and right side frames 2, 2 along the overlapping position, and then insert it into the long hole 24 of the side frame 2 and the lower insertion hole 28 of the rack plate 3. In order to adjust and move the interlocking rods 29, 29 in the front-rear direction A, an interlocking arm 30 is provided with fulcrums 31, 32 on the outside of one interlocking rod 29, and a spring is attached to the lower end of the interlocking arm 30. 33 and an operating wire 34 are connected, the outer cylindrical portion of the wire 34 is fixed to a flange 35 provided on the outer surface of the swing frame side frame portion 2, and the other end of the wire 34 is connected to an operating lever provided at an appropriate location of the threshing machine. , are interlocked so that the feeding angle of each rack plate 3 can be adjusted by the tensioning/relaxing operation of the wire 34 and the springing/retracting movement of the spring 33.

In addition, in the illustrated example, the holes 28, 28 of the rack plate 3
The upper and lower pins 4, 4 inserted into the interlocking arm 30
The fulcrums 31 and 32 are the fulcrums 31 and 32 of the
may be located at another location.

A rack plate 3 is fixed between the inner surfaces of the left and right side frame parts 2, 2 of the swing frame 1, and is fixed to the left and right ends of the rack plate 3, and has an insertion hole 28,
The side surface on which another plate forming 28 is provided is inserted toward the rear side in the swing feeding direction, and the insertion holes 28 are inserted into the holes 23 and elongated holes 24 provided in the left and right side frames 2, 2.
Further, on the outside of the elongated hole 24, holes provided in the interlocking rod 29 are overlapped to form U-shaped pins 4, 4, which are inserted from the outside of the side frame 2 on the upper side and from the interlocking rod on the lower side. Insert the rod 29 from the outside, insert the pins 4, 4 into the series of rack plates 3 in the same way, and in the part where the interlocking arm 30 is attached,
This interlocking arm 30 is superimposed on the outside of the fulcrum 3
The pins 4 and 4 are inserted and installed through the holes 1 and 32 overlapping the other holes, and after these are completed, the push plate 6 is attached to the side frame parts 2 and 32.
The assembly of the swing frame 1 and each rack plate 3 is completed by tightening them together with the seal 25 into the mounting hole 26 on the upper part of the swing frame 1.

The grain culms harvested by the combine are transferred to the conveyor chain 11.
Threshed material transported by the threshing machine, entered from the entrance of the threshing chamber 7 on the front side of the threshing machine, and threshed by the handling teeth of the handling drum 8 leaks from the sorting net 10 on the lower side of the threshing chamber 7. As the grain culm exits the exit of the threshing room 1 and enters the culm discharge chamber 12, the grain that falls from the exit is placed on the swinging sorting shelf, and the grain that falls onto the corrugated plate section 21 is shaken by the swinging. The threshed material sent in the moving direction C and dropped onto the rack plate 3 is sorted together with the straw waste etc. sent from the corrugated plate section 21, and the grains fall from the gap between the rack plates 3 and 3. After leaking from the sorting net 27 together with the grains sent from the corrugated plate part 21, they are sorted by the wind of the fan 16 and are transferred to the first grain outlet 17.
is taken out. Further, the straw waste is sent to the sawtooth plate portion 22 along the upper end of each rack plate 3 by a feeding angle whose inclination angle is appropriately adjusted.

The straw that fell from the culm in the culm chamber 12 is collected in the sawtooth plate part 2.
2, and the straw waste that has passed through the rack plate 3 is sent swinging from the rear end of the swinging sorting shelf to the discharge port 15.
is discharged from the threshing machine via the

Unprocessed grains that do not leak through the sorting net 27 are
7 falls from the rear end, is sorted by the wind of the fan 16, is taken out to the second pick-up port 18, and is sent to the threshing room 1.
is reduced to and reprocessed.

When the operating lever connected to one end of the wire 34 is operated to place the rack plates 3 in an upright position, the swinging feed speed is slowed down and the amount of threshed grain flowing down between each rack plate 3 increases, generally resulting in sorting. To improve efficiency and to make it lie on an incline,
Increasing the oscillating feed rate reduces the amount of leakage between the rack plates 3, which generally provides the best grain sorting.

If the pins 4 are configured as one piece in the upper and lower parts as shown in the figure, the swing frame 1 and the rack plate 3 can be assembled more easily than if the upper rack plate 3 pivot pin 4 and the lower guide pin 4 are configured separately. It's good that it's easier.

[Brief explanation of the drawing]

The figure shows one embodiment of the present invention.
The figure is a partially sectional side view, FIG. 2 is a front sectional view, FIG. 3 is a partially enlarged sectional view, and FIG. 4 is a side view. In the figure, reference numeral 1 indicates a swing frame, 2 indicates a side frame portion, 3 indicates a rack plate, 4 indicates a pin, 5 indicates a head, and 6 indicates a push plate.

Claims (1)

[Claims] 1 A rack plate 3 that can freely adjust the swing feeding angle of the threshed material is interposed between the left and right side frame parts 2, 2 of the swing frame 1 which swings back and forth, and these side frame parts of the swing frame 1 2,
A pin 4 inserted from the outside of the side frame portion 2 is pivotally supported over the overlapping portion between the inner surface of the rack plate 3 and the left and right end surfaces of each rack plate 3, and the outer head 5 of the pin 4 is A swinging sorting shelf for a threshing machine that is pressed to prevent it from falling out with a push plate 6 attached to the outside of the upper part of a swinging frame 1.