JP2001037323A - Expansion type grain transportation apparatus for combined harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the transfer of grain from a stationary transportation spiral to a movable transportation spiral. SOLUTION: Grain received from a stationary grain transportation apparatus 42 is transported by an outer cylinder transportation spiral 52 built in a stationary inner transportation cylinder 51, further transferred to an inner cylinder transportation spiral 58 built in a stretchable movable outer transportation cylinder 56, transported and discharged to the outside of a machine. The movable outer transportation cylinder 56 is expanded, contracted and moved at the outer periphery part of the stationary inner transportation cylinder 51 by the action of an expansion apparatus 45 and the inner cylinder transportation spiral 58 is expanded, contracted and moved at the inner periphery part of the outer cylinder transportation spiral 52.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixed grain transfer device which receives grains from a fixed grain transfer apparatus and transfers the grains by an outer cylinder transfer spiral contained in a fixed inner transfer cylinder, and further incorporates the grains in a telescopic movable outer transfer cylinder. The grains are discharged to the outside of the machine by taking over the inner cylinder transfer spiral and moving the expandable telescopic outer transfer cylinder along the outer peripheral portion of the fixed inner transfer cylinder by the operation of the telescopic device. The inner cylinder transfer spiral is a technique for extending and retracting the inner peripheral portion of the outer cylinder transfer spiral, and can be used as an extendable grain transfer device of a combine.

[0002]

2. Description of the Related Art For example, during harvesting with a combine harvester, the harvested culm harvested by the combine harvester is supplied to a threshing machine, threshed, and threshed and sorted kernels are stored in a grain storage machine. It is supplied into the tank and temporarily stored. When discharging the stored grains to the outside of the machine, the fixed grains were mounted in a telescopic rear-movable transfer cylinder from a fixed transfer spiral mounted in the fixed-grain transfer cylinder of the fixed-grain transport apparatus of the telescopic grain transfer apparatus. It is discharged to the outside of the machine via a rearward transfer spiral and a forwardly movable transfer spiral provided in a frontward transfer cylinder.

[0003]

The fixed spiral is transferred from the fixed spiral through the backward spiral to the forward spiral, and a predetermined spiral gap is formed between the joints of the spirals. , The grain stopped at the cut, causing clogging or damage of the grain, and also causing the weight to become unbalanced due to shrinkage, causing vibration. However, the present invention is intended to solve these problems.

[0004]

In order to achieve this, the present invention provides a fixing inner housing having an outer cylinder transfer spiral 52 for receiving and transferring grains from a fixed grain transfer device 42 on the grain transfer start end side. A transfer cylinder 51, an outer transfer cylinder 56 for moving, which is provided with an inner cylinder transfer spiral 58 that is capable of elastically transferring grains by the expansion and contraction device 45, and a movement that receives the outer cylinder transfer spiral 52 and the inner cylinder transfer spiral 58 In the combine provided with the application shaft 61,
By the operation of the telescopic device 45, the outer transfer tube 56 moves telescopically around the outer peripheral portion of the inner transfer tube 51, and the moving shaft 61 moves telescopically into the fixed grain transfer device 42. The inner cylinder transfer spiral 58 is configured to extend and retract the inner peripheral portion of the outer cylinder transfer spiral 52 to form a combine-type telescopic grain transfer device.

[0005]

During harvesting with a combine, the harvested culm harvested by the combine harvester is supplied to a threshing machine and threshed, and the threshed and sorted kernels are:
It is supplied into the grain storage tank and temporarily stored. When discharging the stored grains to the outside of the machine, the fixed grain transfer tube of the fixed grain transfer device of the fixed grain transfer device of the telescopic grain transfer device is changed from the fixed transfer spiral wound inside the outer tube transfer spiral 52 to the fixed grain transfer device. It is supplied to the inner transfer tube 51, transferred by the outer tube transfer spiral 52, supplied to the transfer outer transfer tube 56 having the inner tube transfer spiral 58 which is extendable and retractable, and transferred by the inner tube transfer spiral 58. To discharge outside the machine.

The telescopic movement between the telescopic inner cylinder transfer spiral 58 and the outer transfer cylinder 56 containing the inner cylinder transfer spiral 58 is fixed by the operation of the telescopic device 45. The inner tube transfer spiral 58 extends and contracts along the inner peripheral portion of the outer tube transfer spiral 52 while the outer peripheral portion of the inner transfer tube 51 expands and contracts. The moving shaft 61 for receiving the inner tube transfer spiral 58 and the outer tube transfer spiral 52 is provided with a fixed grain transfer device 4.
2 to expand and contract.

[0007]

According to the operation of the expansion / contraction device 45, the outer transfer tube 56 for movement moves the outer peripheral portion of the inner transfer tube 51 for fixing, and the inner tube transfer spiral 58 moves the inner periphery of the outer tube transfer spiral 52. By the expansion and contraction, these spirals 58 and 5 are located between the joints of the inner cylinder transfer spiral 58 and the outer cylinder transfer spiral 52.
There is no gap between the two, so that no grain stagnation occurs and no grain clogging or damage. Also, there is no weight imbalance due to expansion and contraction, and no vibration occurs.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. A telescopic grain transfer device 4 provided at the upper part of the grain storage tank 3 for discharging the grains stored in the grain storage tank 3 mounted on the threshing machine 2 mounted on the combine 1 is described with reference to the drawings. .

A traveling device 6 having a pair of left and right traveling rollers 6a for traveling on the soil surface is disposed below the undercarriage 5 of the combine 1 and a feed chain 7 is provided above the undercarriage 5. A threshing machine 2 mounted with a grain storage tank 3 mounted on the side thereof for threshing the harvested culm which is transported while being clamped and held by the clamping rod 7a, and for selectively recovering and temporarily storing threshed grains. It is.

At the front of the threshing machine 2, a weeding body 8 for separating the raised culm from the front end position, a raising device 9 for raising the separated cereal culm, and cutting the raised cereal culm. A mowing machine 12 provided with a cutting blade device 10 and a grain stalk raking and conveying device 11 for transferring the harvested grain stalk to the feed chain 7 and the holding rod 7a is provided with a hydraulically driven telescopic cylinder. By means of 13, it is configured to be able to move up and down on the soil surface.

On the threshing machine 2 side, an operating device 14 for controlling the operation of the combine 1 and a cockpit 1 on which an operator rides are provided.
5 and an engine 16 is provided below the cockpit 15.
And a grain storage tank 3 is installed at the rear. The traveling device 6, the threshing machine 2, the reaper 12, the engine 16 and the like constitute an airframe 17 of the combine 1.

In the culm transfer path formed by the cereal stalk raking and conveying device 11 of the reaper 12, the culm is supplied to the threshing machine 2 by contacting the culm which is cut and transferred. This is a configuration in which a grain stalk sensor 18 for detecting the presence or absence is provided. A traveling mission 19 mounted on the front end of the chassis 5
Is provided with a vehicle speed sensor 19a for detecting the traveling vehicle speed based on the output rotation speed.

As shown in FIG. 3, the threshing machine 2 has a threshing chamber 20, a dust processing chamber 21, a second processing chamber 22
And a sorting room 23 is arranged on the lower side. In the threshing room 20, a large number of tooth extractions 24 of each type are provided.
a is provided with a handling cylinder 24 having a
This is a configuration in which the cut culm is threshing. In the second processing chamber 22 located on the right side in plan view of the threshing chamber 20, a large number of unthreshing processed materials to be reduced (second products) are reprocessed while being transported forward and discharged to the sorting chamber 23. The second processing drum 25 equipped with the processing teeth 25a and the second discharge blades 25b, etc., and a part of the unthreshing supplied from the threshing chamber 20 into the dust processing chamber 21 located on the rear side. This is a configuration in which a plurality of transfer blades 26a, processing teeth 26b, and a dust discharge processing cylinder 26 equipped with dust discharge blades 26c and the like for reprocessing while transferring a processed material rearward are coaxially mounted on a shaft. .

The handle 27 on the left side of the threshing room 20 in plan view
Along with the feed chain 7 which clamps the cut culm,
A gripping net 7b is provided which includes a holding rod 7a and a portion between the lower portion of the outer peripheral edge of the toothing 24a and the gripper cover 27a.
Is arranged. Processing teeth 25a of the second processing cylinder 25
A second receiving plate 28 surrounding the lower portion of the outer peripheral edge of the second receiving plate 28 is provided, and a second discharge port 28a for discharging a part of the processed material is provided at a transfer end portion of the second receiving plate 28. . Dust treatment cylinder 2
The leaking tool 29 surrounding the lower part of the outer peripheral edge of the processing tooth 26b of No. 6
And a dust discharge port 29a for discharging straw chips, culm, etc., is provided at the transfer end of the leaking tool 29.

In the sorting chamber 23, threshing material leaked from the handling net 27b, processed material leaked from the leaking device 29, processed material discharged from the second discharge port 28a, and dust discharge Exit 29
A swing sorting device 30 that swings and sorts while receiving and supplied with the dust discharged from a is provided along the axis of the handling cylinder 24. The swing sorting apparatus 30 is provided with a transfer shelf 31a, a chaff sheave 31b, and a straw rack 31c in this order from the front, and the chaff sheave 3c.
The structure is such that a grain 31d is provided below 1b.

A blower 32 having a blower blade 32a rotatably mounted therein is provided below the swinging sorting device 30 at the starting end side (upper side) in the transfer direction, and the sorting wind generated by the blower 32 is blown. In this configuration, the wind is sorted into grains and dust.
The lower end portion of the blower 32 is connected to the upper side of the first gutter 34 to be fed laterally by the first spiral 34a, which accommodates the grains to be dropped and sorted from the first sorting shelf 33. The lower side is connected to the lower end of the first sorting shelf 33, and the lower part near the upper end of the first sorting shelf 33 accommodates unthreshed (secondary) that is flowed down from the second sorting shelf 35. Then, the upper end of the upper side of the second trough 36 to be fed sideways is provided with an appropriate interval by the second spiral 36a and positioned in a double contact state, and the upper end of the second sorting shelf 35 is moved out of the machine. The configuration is open.

The grains fed laterally by the first spiral 34a are taken over by a grain-lifting device (not shown) or the like, and then fed into the grain storage tank 3 for temporary storage. The unwinding spiral (37a) which takes over the unthreshed processed material (secondary product) laterally fed by the second spiral (36a) and lifts it into the second processing chamber 22
The second reduction cylinder 37 in which the inside of the threshing machine 2 is obliquely provided on the right side in plan view.

Above the transfer end portion of the swing sorting device 30, a dust fan for discharging both the sorting wind of the blower 32 and the dust sorted by the swing sorting of the swing sorting device 30 to the outside of the machine. 38 is provided. At the bottom of the grain storage tank 3, a lateral transfer spiral 3 a for transferring the stored grains backward is provided in the front-rear direction, and the transferred grains are taken over, and are connected via a joint case 39. A vertical discharge support cylinder 40 containing a vertical transfer spiral 40a for changing the direction is provided so as to be rotatable in a substantially vertical posture and supported on the rear side of the grain tank 3 above the joint case 39. With the upper joint case 41 provided at the upper end of the vertical discharge support cylinder 40 as a fulcrum, the entire length of the vertical discharge support cylinder 40 expands and contracts back and forth over the front and rear length of the combine 1, and moves up and down to discharge grains outside the machine. This is a configuration in which a telescopic grain transfer device 4 is provided.

As shown in FIGS. 1 and 2, the telescopic grain transfer device 4 includes an upper joint case 4 on the upper side of the vertical discharge support cylinder 40.
1, a fixed grain transfer device 42 at a transfer start end, an intermediate fixed grain transfer unit 43 at an intermediate portion, an extendable grain transfer unit 44 at a transfer end, an extendable device 45, and the like.
As shown in FIG. 1, the fixed grain transfer device 42 has a fixed grain transfer cylinder 46 having a transfer start end connected to the upper joint case 41 and a transfer end section connected to an outer boss 47a of the support metal 47.
Is connected to the inner peripheral surface on one side. The fixed grain transfer cylinder 46 is provided with a fixed transfer spiral 48 therein.
The fixed transfer spiral 48 has a configuration in which a fixed transfer spiral plate 48b is fixedly provided on an outer peripheral portion of a fixed transfer pipe 48a.

The transfer start end of the fixed transfer pipe 48a of the fixed transfer spiral 48 is supported by a support metal 41a provided inside the upper joint case 41, and a circle is formed on the outer peripheral portion of the transfer end. A receiving wheel 49 having a protruding portion 49 a in a shape is fixedly provided, and the protruding portion 49 a of the receiving wheel 49 is inserted into the outer peripheral surface of the inner boss 47 b of the support metal 47. Further, a receiving metal 50 of a predetermined length having a square hole 50a substantially at the center is fixed to the inner peripheral portion of the transfer end portion of the fixing transfer pipe 48a.

As shown in FIG. 1, the intermediate grain transfer section 43 has a transfer start end of a fixing inner transfer cylinder 51 and a support metal 47.
Is connected to the inner peripheral surface on the other side of the outer boss 47a. The inner transfer cylinder 51 for fixing is provided with an outer cylinder transfer spiral 52 provided therein, and the outer cylinder transfer spiral 52 has a structure in which a spiral plate 52b is fixed to an outer peripheral portion of an outer cylinder 52a. A support metal 53 provided with a square hole 53a at a substantially central portion is provided on the inner peripheral portion of the transfer start end of the outer tube 52a of the outer tube transfer spiral 52, and a small-diameter portion 53b of the support metal 53 is connected to the support metal 47. And is supported by being fitted into the inner diameter portion 47c of the diaper.
Further, a circular receiving metal 54 having a square hole 54a substantially at the center is provided at a predetermined position in the front-rear direction of the inner peripheral portion of the outer cylinder 52a. The outer cylinder 52a has a configuration in which a receiving member 55 made of, for example, a rubber material or a resin material is provided on an outer peripheral portion of a transfer end portion.

As shown in FIG. 1, the telescopic grain transfer unit 44 has a configuration in which the outer transfer tube 56 for movement is inserted into the outer peripheral portion of the inner transfer tube 51 for fixation so as to be able to expand and contract. The transfer end of the transfer outer transfer cylinder 56 has a protrusion 56 projecting downward.
a, and a grain outlet 56b is provided at the lower end of the protruding portion 56a. Also, the outer transfer cylinder 56 for movement
The transfer start end is provided with a receiving member 57 made of a rubber material, a resin material, or the like on the inner peripheral portion thereof. Even when the transfer start end is fully extended, the fixing inner transfer cylinder 51 is provided. The predetermined length is a configuration obtained by polymerization.

The transfer outer transfer cylinder 56 is provided with an inner cylinder transfer spiral 58 provided therein, and the inner cylinder transfer spiral 58 has a structure in which a spiral plate 58b is fixed to the outer peripheral portion of the inner cylinder 58a. is there. Metal receiving plates 59, 59 having a square hole 59a substantially at the center thereof are provided at the inner peripheral portion of the transfer start / end portion of the inner cylinder 58a.
And a circular receiving plate 60 is provided on the outer peripheral portion of the transfer start end, and the outer peripheral portion of the receiving plate 60 is
The inner cylinder of the second outer cylinder 52a is movable. Thereby, the grains mixed into the outer cylinder 52a can be prevented, and the mixed grains can be discharged by extending the elastic grain transfer unit 44. Further, the deflection of the outer cylinder transfer spiral 52 can be prevented.

A support metal 61a is provided on the side wall plate 56c at the transfer end of the transfer outer transfer cylinder 56, and the support metal 61a, the receiving metal 59, 59, 54, 50, and the rectangular holes of the support metal 53 are provided. 59a, 59a, 54a, 50
In this configuration, the moving shaft 61 having a square shape (any of a hexagonal shape and a quadrangular shape is possible) is supported by the a and 53a. In the vicinity of the transfer end portion of the moving shaft 61, an inner cylinder transfer spiral 58 and the receiving metal 59 on the transfer end portion side of the inner cylinder transfer spiral 58 are mounted with bolts 59b and nuts 59c. , The transfer outer transfer cylinder 56 and the inner cylinder movement spiral 58
The moving shaft 61 is configured to extend and contract by the operation of the extending and contracting device 45 integrally. The range of the expansion and contraction movement is approximately 1 m.

The spiral plate 58 of the inner cylinder transfer spiral 58
The outer diameter (D1) of one pitch of the transfer end portion b in FIG. 5 is substantially the same as the outer diameter (D2) of the spiral plate 52b of the outer cylinder transfer spiral 52 as shown in FIG. Good. Thereby, when the elastic grain transfer unit 44 is extended,
The gap between the spiral plate 58b and the inner peripheral portion of the outer transfer cylinder 56 at the end of the grain transfer becomes narrower, and the grain transfer efficiency is improved.

The spiral plate 58 of the inner cylinder transfer spiral 58
In the configuration in which the outer diameter for one pitch of the transfer end portion of b is increased, the dimensions (B), (C), and
(D) The dimensions are substantially the same. This allows for maximum stretching effectively within a limited length. As shown in FIG. 1, the telescopic device 45 is provided with a telescopic motor 62 and a gear case 63 which rotate forward and backward in a fixed grain transport cylinder 46 of the fixed grain transport device 42. A gear 62a is provided at the shaft end of the motor 62, and a rotating shaft 63a is provided on the gear case 63 so as to be supported.
The rotary shaft 63a has a configuration in which a gear 63b is rotatably supported and a pinion gear 64 is rotatably supported. The gear-62a and the gear-63b are configured to mesh with each other.

A support plate 65 is provided at the transfer end of the transfer outer transfer cylinder 56, and a rectangular rack bar 66 provided with a rack gear 66a is mounted on the support plate 65. Reference numeral 66 denotes a configuration supported by a support metal 47 so as to be movable in the front-rear direction. The pinion gear
The operation gear 14 and the rack gear 66 a of the rack bar 66 are engaged with each other.
The expansion / contraction motor 62 is configured to start in forward or reverse rotation depending on the operation direction, and the gears 62a and 63b are driven to rotate in conjunction with the start, and the pinion gear is driven.
64 is driven to rotate, the rack bar 66 is moved forward or backward through the rack gear 66a, and the telescopic grain transfer unit 44 is moved forward or rearward. The transfer tube 56, the inner tube transfer spiral 58, the moving shaft 61, and the like are configured to expand and contract.

Since the rack bar 66 is supported by the supporting metal 47, the outer transfer cylinder 56 for movement can be prevented from swaying and rotating. The outer cylinder transfer spiral 52 and the inner cylinder transfer spiral 58 are opposite to the above description as shown in FIG.
The outer peripheral portion of the inner cylindrical transfer spiral 58 has a larger diameter while the outer peripheral portion of the spiral plate 58b has a larger diameter.

As a result, the gap between the outer peripheral portion of the spiral plate 58b of the inner cylinder transfer spiral 58 having the larger diameter and the inner peripheral portion of the outer transfer cylinder 56 becomes smaller. The remaining kernels in 56 can be reduced.

[Brief description of the drawings]

FIG. 1 is an enlarged side sectional view of a telescopic grain transfer device.

FIG. 2 is an enlarged sectional view taken along the line AA of FIG. 1;

FIG. 3 is an enlarged sectional side view of the threshing machine.

FIG. 4 is an overall side view of the combine.

FIG. 5 is a view showing another embodiment, and is an enlarged sectional side view of a telescopic grain transfer device.

FIG. 6 is a view showing another embodiment, and is an enlarged side sectional view of a telescopic grain transfer device.

[Explanation of symbols]

 42 fixed grain transfer device 45 telescopic device 51 fixed inner transfer tube 52 outer tube transfer spiral 56 transfer outer transfer tube 58 inner tube transfer spiral 61 movement shaft

Claims (1)

[Claims] 1. A fixed grain transfer device 42 on the grain transfer start end side.
A fixed inner transfer tube 51 containing an outer tube transfer spiral 52 for receiving and transferring kernels from the inside, and an outer transfer for transfer provided with an inner tube transfer spiral 58 for expanding and contracting the kernels by the expansion and contraction device 45. In a combine provided with a cylinder 56 and a movement shaft 61 for receiving the outer cylinder transfer spiral 52 and the inner cylinder transfer spiral 58, the movement outer transfer cylinder 56 is moved by the operation of the telescopic device 45. The outer peripheral portion of the transfer cylinder 51 is telescopically moved and the moving shaft 61 is telescopically moved into the fixed grain transfer device 42, and the inner cylinder transfer spiral 58 is connected to the outer cylinder transfer spiral 5.
2. An extendable grain transfer device for a combine, characterized in that the inner peripheral portion of (2) is telescopically moved.