JPH0127687B2 - - Google Patents

Description

[Detailed description of the invention] The present invention provides rice, wheat, soybean, buckwheat, rapeseed, etc.
The present invention relates to a full-feed type combine harvester that can be adapted to harvest operations for many crops.

The present applicant has proposed a screw-type threshing and sorting system threshing device and combine harvester for some time, but the present invention organically combines and combines these devices and can be applied to harvesting a wide range of crops. The objective is to provide a combine harvester that is versatile, has a short front-rear length, has a simplified mechanism, has little vibration, and is excellent in work efficiency, workability, durability, etc.

In order to achieve this object, the present invention is equipped with a reaping/transporting mechanism that is installed on a traveling vehicle body and reaps the crops planted in a field and conveys the entire amount, and a threshing mechanism that is supplied with the entire amount of the transported crops. In a combine harvester having a threshing/sorting mechanism for sorting, the threshing mechanism has a handling chamber and a handling barrel arranged in a direction whose axial direction is perpendicular to the direction of movement of the machine body, and the handling barrel has a Spiral handling teeth are provided to thresh the crops while moving them in the axial direction of the handling barrel, a receiving net is stretched around the circumference of the handling chamber, and a sorting mechanism is provided below the receiving net. A screw auger is arranged in the same axial direction as the handling chamber and the handling cylinder,
A sorting net that is large enough to prevent the material to be sorted from leaking is installed in the receiving gutter of this screw auger, and the stem culm that has moved in the axial direction within the handling chamber is placed at the end of the handling barrel as the machine moves forward. The grain storage device is characterized by being provided with a discharge plate that discharges grains toward the rear in the direction of movement, and by disposing a grain storage device at the rear position of the machine body in the direction of movement.

The invention will now be described with reference to the illustrated embodiments.

In the figure, reference numeral 1 denotes a chassis equipped with a crawler-type traveling device 2, and the front part of the chassis 1 includes:
A reaping/conveying device 3 is provided for reaping and conveying crops planted in a field. The reaping/conveying device 3 includes a divider 4, a cutting blade 5, a reel 6, a scraping auger 7 having a crank finger 8, a conveying body 10 provided on a chain conveyor 9, a floor surface 11 facing the conveyor 9, etc. The structure as a whole can be adjusted vertically relative to the ground.

The conveyance end of the conveyor 8 faces a supply port 13 opened at the bottom of one side end of a handling chamber 12 whose axis is perpendicular to the direction of movement of the machine.
A handling cylinder 14 is mounted coaxially within 2. A spiral handling tooth 15, a radial handling tooth 16, and a connecting handling tooth 17 are provided on the outer periphery of the handling cylinder 14, and a discharge plate 18 is provided on the outer periphery of the rear end of the handling cylinder 14, and is opposed to the discharge plate 18. A culm discharge port 19 is opened in the peripheral wall of the handling chamber 12 . Inside the handling chamber cover 20, as shown in FIG.
A dust sending plate 21 is provided so as to intersect with the axis of the dust sending plate 21, and one end of this dust sending plate 21 is pivotally supported by a pivot pin 21a, and the dust sending angle is adjusted by an adjusting screw 21b provided at the other end. It's becoming possible. A receiving net 22 is stretched around the lower outer periphery of the handling chamber 12, and the discharge plate 19
The portion facing the culm is open and communicates with the discharge culm opening 19. In addition, the mesh size of the receiving net 22 is
It may be made larger on the rear side.

A sorting chamber 23 is provided below the receiving net 22, and two screw augers 24 are installed in this sorting chamber 23.
are mounted on shafts with their axes parallel to the axes of the handling chamber 12 and the handling cylinder 14. A stirring plate 25 is provided between the screw pitches of this screw auger 24.
and a stirring rod 26 are provided, and the screw auger 2
A sorting net 27 is stretched over the receiving gutter portions 4 and 24. As shown in FIG. 4, the mesh size of the sorting net 27 is fine in the front part 27a and fine in the rear part 27a.
7b is roughened and the rear end is open to form a culm opening 28. The number of screw augers 24 is not limited to two, but may be one or two or more, and the sorting net 27 may also be changed as appropriate depending on changes in the screw augers.

A transport body 29 consisting of a belt conveyor is provided below the front half of the sorting net 27, and this transport body 29
There is a wind selection chamber 30 below the conveyance end, into which the wind selection from a winnowing fan 31 provided below the transport body 29 is blown. Wind selection room 3
A No. 1 auger 32 and a No. 2 auger 33 are provided at the bottom of the No. The rear part is open to form a dust exhaust port 35. The No. 1 conveyor 36 communicates with the No. 1 auger 32, the No. 1 conveyor 36 communicates with a grain hopper 37, and the hopper 37 is provided with a grain storage bag 38. Reference numeral 39 is a control section.

Next, the operation of this embodiment will be explained in the case of harvesting paddy rice.

After the rice is divided by the divider 4 and raised by the reel 6, the plant base is cut off by the cutting blade 5.
The entire amount is scraped by the scraping auger 7. The scraped rice is sent backward by the crank finger 8, and is transferred to the floor surface 1 by the conveyor 10 of the chain conveyor 9.
1 towards the handling chamber 12, the long stem culm is cut by a cutting device 11. The rice fed into the handling chamber 12 from the supply port 13 is transferred to the handling cylinder 14.
The grains are conveyed in the axial direction by the spiral handling teeth 15 and are subjected to a strong threshing action due to the frictional force generated between them and the receiving net 22. During this time, the movement of the grain to be threshed is controlled by the dust sending plate 21, the radial handling teeth 16 also perform threshing and stirring actions, and the connected handling teeth 17 also perform the threshing action. Almost all of the grains threshed in the handling room 12 (including grains attached to branches and spikes) leak through the receiving net 22 along with small straw waste and enter the sorting room 2.
3. The large straw culm remaining in the handling chamber 12 is sent in the axial direction, and is discharged from the culm opening 1 by the discharge plate 18.
9 and is ejected from the aircraft. When the size of the mesh of the receiving net 22 is increased on the rear side, leakage during threshing is improved and discharge loss is reduced.

The grains and straw waste that have fallen into the sorting chamber 23 are transported in the axial direction by the feeding action of the screw auger 24, while the grains and fine straw waste are transferred to the sorting net 27.
Large straw waste, grains attached to branch stalks, cut grains, etc. move in the axial direction, and are removed from the coarse mesh portion of the rear half of the sorting net 27 to remove branch stalks. Adhering grains and panicle grains leak together with some straw debris,
The remaining large straw culm is directly discharged from the machine through the discharge culm opening 28. During this time, Screw Auger 2
The stirring plate 25 and the stirring rod 26 attached to 4 smooth the feeding action of the screw, prevent clogging of the sorting net 27, and promote leakage of grains, grains attached to branches and spikes, etc. work to do.

The grains and small straw debris that have fallen onto the transfer body 29 are subjected to the sorting wind from the Karasaki fan 31 as they fall through the wind selection chamber 30 from the conveyance end of the transfer body 29.
The carefully selected grains fall onto the No. 1 auger 32, are sent to the grain hopper 37 by the No. 1 conveyor 36, and are packed into grain storage bags 38, and small straw waste is passed through the dust outlet 35.
is ejected from the aircraft. In addition, the grains with branches and stalks that have fallen from the rear half of the sorting net 27 are returned to the handling room 12 by the second auger 33 and the second bucket conveyor 34 for re-threshing.

The dust sending plate 21 is used to adjust the transfer speed of the threshed grains in the handling chamber 12, and the angle with respect to the moving direction of the threshed grains can be freely changed from the positive side to the negative side using the adjustment screw 21b. Even if the movement is braked by setting it to the negative side, it will still be fed by the strong conveying action of the spiral handling teeth 15, and is particularly effective for Japanese paddy rice, etc., which have difficulty in shedding.

The combine harvester of the present invention can be used for harvesting many crops such as rice, wheat, soybeans, buckwheat, and rapeseed.

As explained above, according to the combine harvester of the present invention, the threshing mechanism is arranged such that the handling chamber and the handling barrel are arranged such that their respective axes are perpendicular to the traveling direction of the machine body, and the harvested grains are fed to the handling barrel. A spiral handling tooth is provided for threshing while conveying the grain, and a receiving net is provided on the circumference of the handling chamber.The sorting mechanism is equipped with a screw auger installed in the same axial direction as the handling chamber and the handling barrel, and a receiving gutter of this auger. This machine is constructed with a sorting net stretched across the main body, and the front and rear lengths of the machine body can be configured to be extremely short, making it suitable for use in small plots of farmland. It eliminates the need for a mixing device and does not have a swinging sorting mechanism like conventional combines.
The mechanism can be simplified without causing any vibration to the aircraft body. In addition, since a discharge plate is installed at the end of the handling barrel, residual culm is actively discharged, eliminating clogging in the handling chamber, and demonstrating stable performance even for long-culm crops and high-moisture crops. It is versatile and can be applied to various crops. Furthermore, even if a grain storage device is installed at the rear of the fuselage, the overall length of the fuselage does not increase, sufficient space is taken up, the balance of the fuselage is good, the weight is reduced by simplifying the mechanism, and the vibration and noise of the fuselage are reduced. Durability and operability are improved, and work efficiency can be improved.

[Brief explanation of drawings]

Fig. 1 is a longitudinal side view of the entire combine showing an embodiment of the present invention, Fig. 2 is a longitudinal sectional front view of the threshing and sorting section of the combine, Fig. 3 is a schematic plan view of the entire combine, and Fig. 4 is the same sorting unit. FIG. 1... Vehicle chassis, 2... Traveling device, 3... Reaping/conveying device, 4... Divider, 5... Cutting blade, 6... Reel, 7... Scraping auger, 8... Crank finger, 9 ...Chain conveyor, 10...Transportation body,
11...floor surface, 12...handling room, 13...supply port,
14... handling cylinder, 15... spiral handling teeth, 16... radial handling teeth, 17... connected handling teeth, 18... discharge plate, 1
9, 28... Culm opening, 20... Handling room cover, 21
...Dust sending plate, 21a...Pivot pin, 21b...Adjustment screw, 22...Receiving net, 23...Sorting room, 24...
... Screw auger, 25 ... Stirring plate, 26 ...
Stirring bar, 27... Sorting net, 27a... Front part,
27b... Rear part, 29... Transfer body, 30...
Wind selection room, 31...Karami fan, 32...No. 1 auger, 33...No. 2 auger, 34...No. 2 reduction bucket conveyor, 35...Dust exhaust port, 36...No. 1 conveyor, 37 ...Grenhotsupa, 38...Grain storage bag, 39...Control unit.

Claims (1)

[Scope of Claims] 1. A reaping/transporting mechanism that is equipped on a traveling vehicle body and reaps the crops planted in the field and transports the entire amount; and a threshing device that is supplied with the entire amount of the transported crops and threshes and sorts them. - In a combine having a sorting mechanism, the threshing mechanism has a handling chamber and a handling barrel arranged in a direction in which the axial direction thereof is orthogonal to the traveling direction of the machine body,
The handling barrel is equipped with spiral handling teeth that thresh the supplied crops while moving them in the axial direction of the handling barrel.A receiving net is stretched around the circumference of the handling chamber, and a sorting mechanism is installed below the receiving net. In this sorting mechanism, a screw auger is arranged in the same axial direction as the handling chamber and the handling cylinder, and a sorting net is stretched over the receiving gutter of the screw auger to prevent the material to be sorted from leaking out. A discharge plate is provided at the end of the handling barrel to discharge the stem culms that have moved in the axial direction within the handling chamber toward the rear in the direction of movement of the machine body, and a grain storage device is arranged at the rear position in the direction of movement of the machine body. A combine harvester characterized by the following: