JP5392379B2 - Threshing device - Google Patents

Description

  The present invention relates to a threshing apparatus.

  Conventionally, the thing of the structure which provided the cleaning apparatus which removes the sawdust adhering to a sheave is known in the rocking sorting shelf which receives a threshing processed material and rocks and sorts. (For example, see Patent Document 1)

JP 2009-1000067 A1

In the conventional example, the swarf on the sheave is removed simply by laterally moving a flat plate, and since it has a configuration lacking a scraper, a sufficient swarf removal action cannot be expected. It is.
An object of the present invention is to remove several debris on the sheave by integrally reciprocating several cleaning tools arranged in parallel in the horizontal direction in the horizontal direction, and in addition to this, a scraper is additionally provided. This is to ensure the removal of sawdust.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the invention according to claim 1 is in a posture along the front-rear direction on the plurality of sheaves (26) of the swing sorting shelf (15) that receives the threshing processed product from the handling chamber (11) and sorts it. A plurality of cleaning tools (30) comprising a vertical cleaning plate (28) arranged at predetermined intervals in the left-right direction, and a scraper (29) that slides on the upper surface of each sheave (26) to remove deposits. ), And the front and rear portions of the plurality of cleaning tools (30) are integrally connected by front and rear connecting members (31), respectively, and the cleaning plate (28) has a cross-sectional shape of the sheave (26). A guide hole (32) is formed in accordance with the guide hole (32), and the sheave (26) is slidably inserted into the guide hole (32), and the plurality of cleaning tools (30) are slidably guided by the sheave (26). Can move back and forth horizontally The scraper (29) is formed with inclined blade edges (29a, 29a) that are inclined at a predetermined angle with respect to the moving direction so as to protrude from the cleaning plate (28) in the left-right direction. The threshing device was configured so that the edges (29a, 29a) were in sliding contact with the upper surface of each sheave (26).
According to a third aspect of the present invention, the cleaning tool (30) includes a pair of operation cables (37a, 37b) that are alternately pulled by a rotational drive of a drive motor (34) and a balance arm (38) that reciprocally rotates. And a threshing apparatus according to claim 1, which is interlocked to reciprocate in the left-right direction via an interlocking mechanism having a swinging arm (40) that reciprocally rotates.
According to a fourth aspect of the present invention, there is provided a spring between a crankpin (36) that rotates by driving of the drive motor (34) and an operation cable (37) on at least one side connected to the crankpin (36). The threshing apparatus according to claim 3, wherein (42) is interposed.
The invention according to claim 5 is the threshing apparatus according to claim 3 or 4, wherein the switch for driving the drive motor (34) is interlocked so that the switch is automatically turned on by an operation of turning on the threshing clutch.
According to a sixth aspect of the present invention, a communication port (47) communicating with the dust disposal chamber (46) having a dust disposal cylinder (45) is formed in the rear part of the handling chamber (11), and the communication port The said sheave (26) is arrange | positioned under (47), and the grain stabbed in the conveyance cereal by the handling cylinder (12) extended back from the handling chamber (11) in the back of the communicating port (47) The threshing apparatus according to any one of claims 1 to 5, wherein a stabbed grain collection chamber (48) for collecting grains is formed.

According to the first aspect of the present invention, the plurality of cleaning tools (30) integrally connected by the front and rear connecting members (31) reciprocate left and right integrally while being slid and guided by the sheave (26). Therefore, the scrap removal action can be effectively performed in a narrow movement range. In addition, the scraper (29) can accurately remove deposits such as sawdust attached to the top surface of the sheave (26) and prevent clogging of the threshing product on the swing sorting shelf (15). Thus, the efficiency of the threshing work can be increased.
Further, as the scraper (29) moves in the left-right direction, the inclined blade edge (29a) of the scraper (29) can smoothly scrape off the deposits on each sheave (26), and the sheave (26) It is possible to more reliably remove the swarf adhering to the top.
According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the cleaning tool (30) is integrally formed of a synthetic resin material, so that the weight can be reduced and the operation can be performed at low cost. This improves the degree of freedom in selecting the scraper shape.
According to the invention described in claim 3, while having the effect of the invention described in claim 1 or 2, the rotary motion by the drive motor (34) is provided as a mechanism for reciprocating the cleaning tool (30). By using a mechanism that converts to reciprocating oscillating motion, it is possible to reciprocate at a faster speed within a oscillating range with a narrower amplitude than a moving configuration using a rotational motion such as a helical shaft, and to remove deposits. Increases the effect.
According to the invention described in claim 4, in addition to the effect of the invention described in claim 3, the operation load applied to the operation cable (37) is absorbed by the spring (42). The weight is not applied, there is no risk of breakage, and the cleaning tool (30) can be moved smoothly from side to side.
According to the fifth aspect of the present invention, in order to achieve the effect of the third or fourth aspect of the invention, the switch for driving the drive motor (34) is automatically turned on by the operation of turning on the threshing clutch. be able to.
According to the invention described in claim 6, in addition to the effect of the invention described in any one of claims 1 to 5, in the stab particle recovery chamber (48), It can be recovered.

Combine side view Top view of the combine Side cross section of threshing section Side view of the main part of the swing sorting shelf Top view of the main part Top view of cleaning tool Right side view of FIG. Left side view of FIG. Same as above Perspective view of the cleaning tool Plan view showing the reciprocating movement interlocking mechanism of the cleaning tool Side view of the main part Plan view to partially break the threshing part Top view of the barrel Rear view of the barrel Top view of the combine Same as above Front view of the main part of the threshing unit (A) And (B) is a sectional side view of the main part of the swing sorting part Rear view of the main part of the swing sorting part

An embodiment of the present invention will be described with reference to the drawings.
The combine shown in FIGS. 1 and 2 has the following configuration.
That is, the traveling vehicle body 1 is provided with a pair of left and right traveling crawlers 2 and 2, and a mowing unit 4 is installed in front of a threshing device (threshing unit) 3 mounted on the rear part. A driving operation unit such as a driver's seat 5 and an operation box 6 is provided, and a Glen tank 7 for temporarily storing threshing grains is provided behind the driving operation unit 6. Reference numeral 8 denotes a discharge auger that discharges the grains in the Glen tank 7 to the outside of the machine.
As shown in FIG. 3, the threshing unit 3 is configured to perform threshing processing by a handling cylinder 12 that is driven and rotated in a handling chamber 11 at the tip part of the cereal bowl that is conveyed while holding the stock by the threshing feed chain 10. Yes. A receiving net 13 is stretched around the lower half of the handling chamber 3, and a handling cover 14 that covers the upper portion of the handling cylinder 12 is configured to swing and open with one side of the handling chamber as a fulcrum. The swinging sorting device (swinging sorting shelf) 15 below the handling chamber is configured to receive the processed product after threshing and screen it while swinging and transporting, and from the upper side in the sorting direction, the transport shelf 16 and the first chaff sheave. 17, the second chaff sheave 18, and the straw rack 19 are arranged in this order, and the granule 19, the first return shelf 20, and the second return shelf 21 are arranged below the second chaff sheave 18. The configuration is provided.
In addition, in order from the upper side of the sorting direction to the lower side of the oscillating sorting shelf 7, a tang 22, a first spiral 23, a second spiral 24, and a dust exhaust fan 25 are provided above to constitute a dust sorting chamber. doing.
The first chaff sheave 17 is composed of a fixed sheave (sheave) 26 that is inclined in the vertical direction with a predetermined interval in the front-rear direction, and the second chaff sheave 17 is composed of a movable sheave 27 that can change the tilt angle.
The first chaff sheave 17 includes a plurality of cleaning plates 28 arranged along the front-rear direction and at predetermined intervals in the left-right direction, and a scraper 29 that contacts the upper surface of each fixed sheave 26 and removes deposits. Cleaning tools 30, 30, 30 ... are provided. These cleaning tools 30, 30, 30... Are integrally connected and held by the front and rear connecting members 31, 31, and are supported so as to be reciprocally movable in the lateral direction (longitudinal direction of the sheave 26) with respect to the chaff sheave 17. .
The cleaning plate 28 is erected vertically in the vertical direction, and each plate 28 is provided with a guide hole 32 corresponding to the cross-sectional shape of the fixed sheave 26, and each fixed sheave 26 is provided in each guide hole 32. It is configured to slide through and guide.
The scraper 29 comes into contact with the inclined upper surface of the fixed sheave 26 inclined in the vertical direction and removes adhering substances by sliding movement, and the scraper has an inclined blade inclined at a predetermined angle with respect to the moving direction. It has an edge 29a, is provided symmetrically across the cleaning plate 28, and has a substantially C-shaped blade edge 29a, 29a in plan view, so that the deposits can be removed with respect to the left and right reciprocating movements. We make sure that it can be done without difficulty.
In addition, the cleaning plate 28 and the scraper 29 are integrated, and are integrally molded with a synthetic resin material, thereby reducing weight and cost.
In addition, each cleaning tool 30 includes a pair of operation cables 37a and 37b that are alternately pulled by a rotational drive of a drive motor 34, a balance arm 38 that reciprocates, a balance arm shaft 39, and a swing arm 40 that reciprocates. In order to reciprocate horizontally in the horizontal direction via an interlocking mechanism such as
When the drive motor 34 is driven, the pair of operation cables 37a and 37b connected to the crank pin 36 are alternately pulled by the rotation of the crank arm 35, and the balance arm shaft 39 is rotated by the reciprocating rotation of the balance arm 38. The swing arm 40 reciprocally swings left and right as the center. The cleaning tool 30 connected to the swing arm 40 through the long hole 41 is forcibly reciprocated in the horizontal direction.
The crank pin 36 and the operation cable 37a are connected and held via a spring 42 and a plate 43 so that an excessive load is not applied to the cable.
The drive motor 34 is interlocked so that when the threshing clutch is engaged and operated, the motor drive switch is automatically engaged.
As shown in FIG. 13, the handling chamber 11 is configured between the front side plate 11a and the middle side plates 11b and 11c, and the communication port 47 part to the dust disposal chamber 46 having the dust disposal cylinder 45 is the middle plate 11b. And 11c. And the handling cylinder 12 is extended back from the said communication port 47, and the granule collection | recovery chamber 48 is comprised between the inner side board 11c and the rear side board 11d. As shown in FIGS. 14 and 15, the extended end portion of the handling cylinder 12 in the bristle grain collection chamber 48 has an inclined tooth handling 49 inclined at a predetermined angle with respect to the handling cylinder rotation direction and the handling cylinder rotation direction. The parallel teeth 50 that are parallel to each other are arranged alternately at predetermined intervals in the circumferential direction of the barrel. According to such a configuration, it is possible to remove the grains that have been opened into the cereal by using the inclined tooth treatment and remove the grains that have been squeezed into the cereal, and the cereal grains can be struck down by the parallel tooth treatment. Performance is improved.
As shown in FIGS. 16 and 17, the narrow guide operating lever 52 for moving the narrow guide 51 for guiding the weeds on the uncut ground side to the outside into and out of the machine body is provided with the narrow cover 14 of the threshing section 3. The narrow guide operation lever 52 in this example is arranged between the driver's seat 5 and the dust amount adjusting lever 53 for adjusting the dust amount in the handling chamber, and the handling cylinder cover. 14 on the front side. Thereby, the operability from the driver's seat side and the left side of the fuselage is improved, and the troublesome operation is eliminated by providing it away from the traveling system operation lever relationship. Further, as shown in FIG. 18, the narrow guide operation lever 52 has an auger at the narrow guide overhang operation position (A) and the narrow guide storage operation position (B) when the barrel cover 14 is opened. By setting the operation position so that the discharge auger 8 on the receptacle 9 is sandwiched, interference with the discharge auger is avoided.
FIG. 19A shows the time when the swing sorting shelf 15 swings to the foremost position, and FIG. 19B shows the time when the swing sorting shelf 15 swings to the rearmost position. A second seal 55 made of an elastic material such as rubber is suspended from the inclined lower end of the second return shelf 21 inclined in the vertical direction toward the second spiral bottom 54, and the position of the pressing plate 56 of the second seal 55 is In the rearmost position of the swing shelf 15 (second return shelf 21) (FIG. 19B), it is arranged so as to be positioned in front of the rear end position of the rear upward inclined surface 54a of the second spiral bottom 54. . The No. 2 seal is lifted when it is at the front position of the shelf, and is folded and lifted when it is at the rear position of the shelf, so that wrinkles may leak from the position. The position of the pressure plate 56 of the second seal is arranged so as to be rearward of the outer peripheral rear end position of the second spiral 24 at the frontmost position of the swing shelf (FIG. 19A). It is possible to prevent the seal from rolling up due to the item. In addition, the pressing angle θ of the second seal 55 by the restraining plate 56 bent in the shape of a square is set to 45 ° or more with respect to the rear upward inclined surface 54a of the second spiral bottom 54, thereby improving the pressing of the seal. , Can prevent the leakage. Further, the same effect can be obtained by configuring the second seal 55 so as to be pressed against the rear upward inclined surface 54a of the second spiral bottom 54 at the frontmost position of the swing shelf (FIG. 19A). Play.
Further, as shown in FIG. 20, the second seal 55 extends to the left and right side plates 57 and 57 of the sorting chamber more widely than the left and right lateral width of the swing sorting shelf 15 so as to prevent the leakage of wrinkles from the gap. It is configured.
In the second seal 55, both lower corners of the lower end side are cut to form an oblique cut surface 58, thereby preventing the seal from rolling up due to a spiral or second object. Protrusion of the seal can also be prevented by providing cuts and notch grooves 59, 59 on both ends of the seal.
Note that the No. 2 seal in this embodiment has such a length that the swing shelf is in any swing position in the front and rear and does not hit the No. 2 spiral, and the lower end of the seal is below the center of the No. 2 spiral axis. It is configured to be located at the length.

11 treatment room
12 Handle cylinder 15 Swing sorting shelf 17 Chaff sheave 26 Fixed sheave (sieve)
28 Cleaning plate 29 Scraper 29a Inclined blade edge 30 Cleaning tool
31 Connecting member
32 Guide hole 34 Drive motor 35 Crank arm 36 Crank pin 37 Operation cable 38 Balance arm 39 Balance arm shaft 40 Swing arm 42 Spring
45 Dust removal cylinder
46 Dust disposal chamber
47 Communication port
48 Stinging grain collection room

Claims (6)

Arranged in a plurality of sheaves (26) of the swing sorting shelf (15) for receiving and sorting threshing products from the handling chamber (11) in a posture along the front-rear direction and at a predetermined interval in the left-right direction. the vertical orientation cleaning plate (28), comprising a plurality of cleaning tool consisting scraper (29) for removing deposits sliding contact (30) on the upper surface of the sheave (26), the plurality of the cleaner ( The front and rear portions of 30) are integrally connected by the front and rear connecting members (31), and the cleaning plate (28) is formed with a guide hole (32) that matches the cross-sectional shape of the sheave (26). The sheave (26) is slidably inserted into the guide hole (32), and the plurality of cleaning tools (30) can be reciprocally moved in the left-right direction integrally while being guided by the sheave (26). And the scraper (2 ), Inclined blade edges (29a, 29a) that are inclined at a predetermined angle with respect to the moving direction are formed by projecting from the cleaning plate (28) in the left-right direction, and the inclined blade edges (29a, 29a) are A threshing device configured to be in sliding contact with the upper surface of the sheave (26).   The threshing apparatus according to claim 1, wherein the cleaning plate (28) and the scraper (29) are integrally formed of a synthetic resin material.   The cleaning tool (30) includes a pair of operation cables (37a, 37b) that are alternately pulled by a rotational drive of a drive motor (34), a balance arm (38) that reciprocates, and a swing that reciprocates. The threshing apparatus according to claim 1 or 2, wherein the threshing apparatus is interlocked to reciprocate in the left-right direction via an interlocking mechanism having a moving arm (40).   A spring (42) is interposed between a crankpin (36) that rotates by driving of the drive motor (34) and an operation cable (37) on at least one side connected to the crankpin (36). Item 3. A threshing apparatus according to item 3.   The threshing apparatus according to claim 3 or 4, wherein the switch for driving the drive motor (34) is interlocked so that the switch is automatically turned on by an operation of engaging a threshing clutch. A communication port (47) communicating with the dust exhausting treatment chamber (46) having a dust exhausting treatment cylinder (45) is formed in the rear part of the handling chamber (11), and the sieve is disposed below the communication port (47). (26) is arranged, and behind the communication port (47), a stab grain recovery chamber for recovering the grains stabbed in the transported culm by the handling cylinder (12) extended rearward from the handling chamber (11) The threshing apparatus as described in any one of Claim 1 to 5 which formed (48).

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