JP2013179852A - Threshing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable maintenance such as preparation and exchange of a shaking and sorting shelf-driving shaft to be easy by arranging the driving shaft for shaking and driving a shaking and sorting shelf on the side ahead of the front side plate of a threshing chamber.SOLUTION: In a threshing apparatus in which a fourth treating chamber (9) is constituted by equipping a fourth treating cylinder (11) for recovering stuck grains in cereal culms by scraping to the end side of a threshing chamber (3) in which a threshing cylinder (5) is pivotally installed on the inside thereof, a shaking and sorting shelf (25) comprising a transfer shelf (27), a chaff sieve (28), a straw rack (29) a grain sieve (30) and the like is arranged to range from below the threshing chamber (3) to the rear thereof, while a drive shaft (26) for forcedly driving shaking operations in the longitudinal direction of the shaking and sorting shelve is installed to the outside ahead of the front side plate (12) of the threshing chamber.

Description

  This invention relates to the threshing apparatus provided with the 4th process part which handles and collects the small grains mixed in the waste straw after the threshing process.

  Conventionally, for example, in Patent Document 1, in the rear side of the handling chamber formed between the front side plate and the middle side plate, the fourth recovery that collects the small grains in the cereal between the middle side plate and the rear side plate is performed. A threshing device having a configuration in which a chamber is provided and a processing cylinder in the fourth chamber is extended to the rear end of the fourth recovery chamber and a fourth processing cylinder is provided is disclosed. A swing sorting shelf made up of a shelf, a chaff sheave, a stroller rack, a Glen sheave and the like is arranged. Further, a swing shelf drive shaft (crankshaft) that forcibly drives the swinging action of these swing sorting shelves in the front-rear direction is disposed behind the front plate of the handling chamber.

JP 2007-31733 A

  According to the arrangement configuration of the swing shelf drive shaft, maintenance from the front side of the threshing device is difficult to perform, resulting in a reduction in maintenance work efficiency.

In order to solve the above problems, the present invention has taken the following technical means.
That is, in the invention described in claim 1, the No. 4 processing cylinder (11) for dropping the grain put into the culm after threshing is disposed on the terminal side of the processing chamber (3) in which the processing cylinder (5) is installed. In the threshing apparatus provided with the No. 4 processing chamber (9) provided, a transfer shelf (27) that receives the processed material dropped from the handling chamber (3) and swings and transfers it backward, and a processed material from the transfer shelf (27). The chaff sheave (28) that takes over and sifts through, the Strollac (29) that carries over and sifts the processed material from the chaff sheave (28), and the processed material that leaks from the chaff sheave (28) and receives and sifts out. A swing sorting shelf (25) having a grain sieve (30) is arranged from the lower side to the rear of the handling chamber (3), and a drive shaft (26) for forcibly swinging the swing sorting shelf (25) in the front-rear direction is provided. The front plate (12) of the chamber (3) A threshing apparatus characterized by remote and Jikuka outside in front of the site.

  The cereals passing through the inside of the handling chamber (3) are threshed by the rotation of the handling cylinder (5), and in the fourth processing chamber (9) at the rear of the handling chamber, the small grains mixed in the threshing grains after the threshing treatment. Are removed by forced rotation of the No. 4 processing cylinder (11).

The transfer shelf (27) mainly receives the threshing processed material leaking from the receiving net (6) of the handling room, sorts the specific gravity difference while swinging and moving backward, and transfers it to the beginning of the subsequent chaff sheave (28).
The chaff sheave (28) receives the processed material from the transfer shelf (27) and the processed material from the fourth processing chamber (9), and sifts and sorts them while swinging and moving backward. The Strollac (29) receives the processed material from the chaff sieve (28) and screens it.

Treated grains that leak down from the chaff sieve are received on the sieve and screened.
Since the drive shaft (26) for swinging and driving the swing sorting shelf (25) is disposed at a position exposed to the front side of the front plate (12) of the handling chamber, the drive shaft (26) is maintained, replaced, etc. Easy maintenance.

The invention according to claim 2 is the threshing apparatus according to claim 1, wherein the front end portion of the chaff sheave (28) is positioned below the fourth processing chamber (9).
According to the above configuration, since the front end portion of the chaff sheave (28) is located below the fourth processing chamber (9), the transfer distance from the start end of the transfer shelf (27) to the front end position of the chaff sheave (28) can be increased, and the specific gravity can be increased. The differential sorting can be performed well, the sieve sorting on the chaff sheave (28) inherited from the transfer shelf (27) can be effectively performed, and the sorting performance is improved.

  According to a third aspect of the present invention, a first sorting net (33) is provided below the front end portion of the chaff sheave (28) to receive and sort the processed material leaking from the front side of the chaff sheave (28). A threshing apparatus according to claim 2.

  According to the above configuration, the processed material that leaks in a large amount on the front side of the chaff sheave (28) is preliminarily sorted by the first sorting screen (33) below, so that a burden is placed on the sorting process on the Glen sieve (30). The first selection can be performed satisfactorily.

  According to a fourth aspect of the present invention, the first sorting net (33) is provided in a continuous manner on the front side of the grain sieve (30), and has a mesh hole (33a) having a smaller mesh size than the mesh of the grain sieve (30). The threshing apparatus according to claim 2 or claim 3.

Large straw scraps and grains that cannot be completely removed from the first selection screen (33) are swept backwards and screened by a grid mesh-like grain sieve (30).
Fine dust such as dust that falls out of the first sorting net (33) is blown off by the sorting air from the tang and is discharged to the rear. Therefore, the first sorting can be performed efficiently and the sorting performance is improved.

  The invention according to claim 5 is an attitude for blowing and guiding a part of the sorting air from the tang (35) provided below the transfer shelf (27) toward the front end side of the rear-side Glen sheave (30), A wind direction plate (42) whose posture can be changed to the posture of leading and guiding toward the front end side of the first sorting screen (33) on the front side is provided, and due to the ascending operation of the cutting part (H) to the non-working position 5. The interlocking operation according to claim 3, wherein the driving stop of the swing sorting shelf (25) and the posture change to the rising posture toward the front end side of the first sorting net (33) of the wind direction plate (42) can be performed. A threshing device.

  When the wind direction plate (42) raises the cutting part (H) to a predetermined level or more, the front direction side of the first sorting net (33) on the front side from the air blowing guide posture toward the front end side of the grain sheave (30) is related to this. The posture is changed to the start-up guidance posture toward At the same time, the intermittent clutch (23) to the swing sorting shelf (25) is disconnected in association with the raising operation of the cutting part (H), and the drive of the swing sorting shelf (25) is stopped.

  When the cutting operation for one stroke is completed, the cutting unit (H) is raised and the machine is turned. At this time, the amount of processed material is extremely reduced on the swing sorting shelf (25). In this state, if normal rocking sorting and wind sorting are performed, there is a problem that the grains are blown backward by the strong sorting wind from the tang (35) and scattered outside the machine. Therefore, when the mowing part (H) is raised, the driving stop of the swing sorting shelf (25) and the raising of the sorting wind are simultaneously performed, so that the third loss problem can be solved.

  According to the first aspect of the present invention, the drive shaft (26) for swinging and driving the swing sorting shelf (25) is disposed at a position exposed to the front side of the front plate (12) of the handling chamber (3). Therefore, maintenance such as maintenance and replacement of the drive shaft (26) can be easily performed from the front side of the threshing apparatus.

  According to the second aspect of the present invention, in addition to the effect of the first aspect, the front end portion of the chaff sheave (28) that inherits the processed material from the transfer shelf (27) is located below the fourth processing chamber (11). Therefore, the transfer distance from the start end of the transfer shelf (27) to the front end position of the chaff sheave (28) can be increased, and the specific gravity difference can be selected well, and the sieve selection on the inherited chaff sheave (28) can be performed efficiently. The sorting performance can be improved.

  According to the third aspect of the invention, in addition to the effect of the second aspect of the invention, the processed material that leaks in a large amount on the front side of the chaff sheave (28) is preliminarily reserved by the first selection screen (33) below. Since sorting is performed, no burden is placed on the sorting process on the Glen sieve (30), and the first sorting can be performed satisfactorily.

  According to the invention described in claim 4, in addition to the effects of the invention described in claim 2 or claim 3, from the first selection screen (33) on the front side, the Glen sieve (30) on the rear side, and the tang (35) The first sorting can be efficiently performed by the sorting wind, and the sorting performance can be further improved.

  According to the fifth aspect of the invention, in addition to the effect of the third or fourth aspect of the invention, when the mowing part (H) is raised, the driving stop of the swing sorting shelf (25) and the wind direction plate are performed. Since the sorting wind is simultaneously raised by changing the posture of (42), the third loss can be greatly reduced even if the amount of processed material is reduced on the swing sorting shelf (25).

Combine side view Side sectional view of the main part of the threshing device Top view of main parts of threshing device Longitudinal rear view of main part of threshing device Side view of the main part of the swing sorting device Top view of the main part of the swing sorting device Side view of essential parts of threshing device Power transmission path diagram of threshing device

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a side view of a combine, and FIG. 2 is a side view of a threshing apparatus, which has the following configuration.

  That is, a threshing device (threshing part) D is mounted on a vehicle body 1 having a traveling crawler, and a front part thereof is equipped with a reaping part H that conveys and feeds the harvested culm to the threshing part. And the threshing part D shown in FIG. 2 performs a threshing process by the handling cylinder 5 with the tooth handling 4 which drives and rotates in the handling chamber 3 the tip part of the cereal which is conveyed while holding the stock by the threshing feed chain 2. It is configured as follows. A receiving net 6 is stretched around the lower half of the handling chamber 3, and a handling cylinder cover 7 that covers the upper portion of the handling cylinder 5 is configured to swing and open with one side of the handling chamber as a fulcrum. A rear end portion of the handling chamber 3 is provided with a fourth processing chamber 9 that scrapes and collects the grains in the cereal (waste straw), and the fourth processing chamber 9 includes the handling cylinder 5. A No. 4 processing cylinder 11 having a processing tooth 10 on the outer periphery that is forcibly rotated about the same axis with the same diameter as the inner shaft is mounted. In the embodiment, the fourth processing cylinder 11 is configured integrally with the handling cylinder 5, and the handling cylinder 5 is extended longer than the end of the handling chamber 3.

A receiving net 6 is stretched between the front side plate 12 and the rear partition plate 13 on the start end side of the handling chamber 3, and a fourth processing chamber 11 is formed between the rear partition plate 13 and the rear side plate 14 of the handling chamber.
A receiving plate 16 is provided in the lower half of the fourth processing chamber 11 to receive and support the cereals from below at the lower position of the fourth processing cylinder 10. The receiving plate 16 is provided with a leakage hole 17 for allowing the cerealed grain to flow downward.

  The fourth processing chamber 11 includes a partition guide plate 18 and a processing chamber in which a part of the processing object in the processing chamber and a dust-exhaust processing product from the processing chamber 3 are provided at a portion corresponding to the tip side of the cereal. It communicates so that it may be sent from the dust feed path 15 between the rear partition plates 13 to the dust removal treatment chamber 20 side in which the dust removal treatment cylinder 19 is built.

  In addition, the said dust removal process cylinder 19 is arrange | positioned on the opposite side to the threshing feed chain 2 side, and it is the 2nd process cylinder 21 in the front of the dust removal process cylinder 19 on the same axial center as this. Are arranged in parallel with the barrel 5.

  The swing sorting device (swing sorting shelf) 25 below the handling chamber swings back and forth in the front-rear direction by driving from the swing shelf drive shaft (drive shaft) 26, and swings by receiving the processed product after the threshing process. It is configured to sort the sieves while being transferred, and is arranged in the order of the transfer shelf 27, the chaff sheave 28, and the straw rack 29 from the upper side in the sorting direction, and below the chaff sheave 28 is a lattice mesh-like granule 30, The return shelf 31 and the second return shelf 32 are arranged and provided.

  In addition, in order from the upper side of the sorting direction to the lower side of the oscillating sorting shelf 25, a red pepper 35, a first spiral 36, a second spiral 37, and a dust exhaust fan 38 are provided above to form a dust sorting chamber. doing.

  The swing shelf drive shaft 26 is arranged on the front side of the front plate 12 of the handling chamber 3 and pivoted so that maintenance can be easily performed from the front side of the threshing device. The rotational power to the swing shelf drive shaft 26 is transmitted from the small shaft 24 driven to rotate by the engine E through the intermittent clutch (tension clutch) 23 so as to rotationally drive the swing shelf drive pulley 26a. It has become.

  The transfer shelf 27 includes a first transfer shelf 27a on the front side and a second transfer shelf 27b on the rear side, and is configured by a flat plate so that the upper surface is a flat transfer surface. Is arranged. Further, the transfer shelf 27 is inclined forward and backward so that the rear side (lower side in the transfer direction) is slightly lower than the front side, and the stocker side is lower than the grain head side of the handling room. (See FIG. 4). And the filtration hole 39 of the grade which a grain leaks is drilled in the 2nd transfer shelf 27b of the rear part side. The filtration hole 39 is formed in a long hole shape that is long in the left-right direction, and is provided so as to be appropriately inclined in the feed direction of the processed material.

  The chaff sheave 28 is arranged from the lower side to the rear side of the fourth processing chamber 11 and is composed of a sheave plate 40 that can change the inclination angle with a predetermined interval in the front-rear direction and tilted in the up-down direction, and from the second transfer shelf 27 b. The processed product and the processed product from the fourth processing chamber 11 are received and screened.

  The grain sieve 30 is constituted by a lattice mesh 30a for grain leakage sorting, and a first sorting mesh 33 provided with eye holes 33a smaller than the mesh of the lattice mesh 30a is connected to the front side thereof. It is installed. The first sorting net 33 is arranged below the front side of the chaff sheave 28 so that fine dust such as dust leaks out.

  At the sorting wind outlet 41 of the Karatsu 35, a portion of the sorting wind from the Karatsu 35 is blown and guided toward the rear side of the sieve 30 and the front side of the No. 1 sorting screen 33. A wind direction plate 42 that can be changed in posture to the guiding posture is provided. The wind direction plate 42 is configured to rotate around the horizontal axis Q and change its posture. When the cutting part H is raised to the non-working position, the intermittent clutch 23 is disconnected by the electric motor M and the swing sorting shelf 25 is moved. At the same time, the electric motor M causes the wind direction plate 42 to rise from the posture toward the front end side of the sheave (air blowing direction A1) to the front end side of the first sorting net 33 (air blowing). It is configured to be interlocked so that the posture is changed to (A2 direction).

  Note that the wind direction plate 42 is interlocked to be operated through the reduction gear mechanism 43 and the linkage 44 by driving the motor M (see FIG. 7).

3 Handling chamber 5 Handling cylinder 9 4th processing chamber 11 4th processing cylinder 25 Oscillating sorting shelf 27 Transfer shelf 28 Chaff sheave 29 Strollack 30 Glen sheave 33 1st sorting net 42 Wind direction plate H Cutting part

Claims (5)

  A fourth processing chamber (9) provided with a fourth processing cylinder (11) for dropping the grains that have been put into the cereal cereal after threshing is provided on the terminal side of the processing chamber (3) in which the processing cylinder (5) is installed. In the threshing apparatus, a transfer shelf (27) that receives the processed product dropped from the handling chamber (3) and swings it backward, and a chaff sheave (28) that takes over the processed product from the transfer shelf (27) and sifts it. And a Strollac (29) for picking up the processed material from the chaff sheave (28) and sieving and sorting, and a granule sieve (30) for receiving the processed material leaking from the chaff sheave (28) and sieving it. A shelf (25) is arranged from the lower side to the rear side of the handling chamber (3), and a drive shaft (26) forcibly swinging the swing sorting shelf (25) in the front-rear direction is used as a front plate of the handling chamber (3). The shaft is mounted on the front outer side than (12). Threshing apparatus according to claim.   The threshing apparatus according to claim 1, wherein the front end portion of the chaff sheave (28) is positioned below the fourth processing chamber (9).   The threshing apparatus according to claim 2, wherein a first sorting net (33) is provided below the front end portion of the chaff sheave (28) to receive and sort the processed material leaking from the front side of the chaff sheave (28). .   The said 1st selection net | network (33) is connected with the front side of the grain sheave (30), and has the structure of having a mesh hole (33a) with a mesh | interval smaller than the mesh | network of this grain sheave (30). 3. The threshing device according to 3.   A posture in which a part of the sorting air from the tang (35) provided below the transfer shelf (27) is guided to blow toward the tip of the rear side of the grain sieve (30), and the first sorting screen (33) ) A wind direction plate (42) whose posture can be changed to the posture of starting and guiding toward the front end side is provided, and the swing sorting shelf (25) of the swing sorting shelf (25) is caused by the ascending operation to the non-working position of the cutting part (H). The threshing apparatus according to claim 3 or 4, wherein the threshing apparatus is interlocked so that the driving can be stopped and the posture can be changed to the rising posture toward the front end side of the first sorting net (33) of the wind direction plate (42).

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