JP5672477B2 - General purpose combine - Google Patents

Description

  The present invention relates to a general purpose combine equipped with a removable dust cover.

  A threshing unit for threshing cereals harvested by the cutting unit on the front side of the traveling machine body, and a sorting unit for sorting the threshing processed by the threshing part into grains and dust are provided in the traveling machine body, A dust exhaust port for discharging dust from the rear end of the traveling machine is formed on the rear end side of the sorting unit, and the dust discharged from the sorting unit to the outside through the dust exhaust port is guided downward. Conventionally, a general-purpose combine provided with a dust cover is known.

  According to the general-purpose combine having the above structure, unlike the self-decomposing combine that performs the threshing operation only on the head side of the cereal of rice or wheat, various types such as oat, soybean, rapeseed, etc. Although the threshing operation of the cereal culm can be performed, the threshing operation is performed on the entire culm length, so that there is a problem that the amount of dust discharged from the dust outlet increases.

  Under such circumstances, a general-purpose combine described in Patent Document 1 in which the dust cover is protruded to the rear side of the traveling machine body and the dust outlet is opened larger has been developed and is publicly known.

JP 2009-34016 A

However, the general-purpose combine of the above document increases the longitudinal length of the entire fuselage because the dust cover protrudes rearward, so when storing in a warehouse or loading / unloading to a transport truck. There is a problem that the dust cover protruding to the rear side may get in the way, making it difficult to carry the general purpose combine.
The present invention can effectively prevent clogging of dust discharged to the outside of the machine at the discharge port during the cutting and threshing operations, and facilitate the housing and loading / unloading operations of the vehicle body. An object is to provide a general-purpose combine that can be performed.

In order to solve the above-mentioned problems, the present invention provides a threshing unit 17 for threshing cereals harvested by the harvesting unit 3 on the front side of the traveling machine body 2, and threshing processed by the threshing unit 17, including grains and dust. The traveling machine body 2 is provided with a sorting unit 18 for sorting, and a discharge port 43 is formed on the rear end side of the sorting unit 18 to discharge the dust collected by the sorting unit 18 from the rear end part of the traveling machine body 2. In a general-purpose combiner in which a dust cover 48 that guides dust discharged from the discharge port 43 to the lower side is attached to the rear end side of the sorting unit 18, the dust cover 48 is mounting is in freely manner detachable to a rear end side of the sorting section 18 provided in the support frame 47, a working posture the dust-exhaust cover 48 to be swung to the side opposite to the sorting section 18 to the upper side as a fulcrum, sorting section 18 Can be switched to a storage posture in which a part of the screen is swung to the side and stored in the sorting unit 18. To support the exhaust dust cover 48 to the support frame 47, it is characterized in that to change the degree of opening of the outlet 43 by the attitude switching.

  According to the configuration of the present invention, when the dust cover is switched to the storage position, a part of the dust cover is stored in the sorting unit, so that the longitudinal length of the machine body can be suppressed as much as possible. Therefore, it is easy to load and unload general purpose combine trucks, etc., and the dust cover can be rotated in a large amount when the dust cover is switched to the work position. There is an effect that clogging of the discharge port is prevented.

  In addition, since the dust cover is attached to a support frame provided in a detachable manner on the rear end side of the sorting unit, there is an effect that the maintainability of the sorting unit is improved.

  Further, if the dust cover is configured to be switchable to a plurality of work postures having different opening degrees, the discharge opening is adjusted to an appropriate opening degree according to the type of cereals to be cut and efficiently discharged from the discharge opening. There is an effect that dust can be discharged.

It is a side view of the general purpose combine to which the present invention is applied. It is a side view which shows the internal structure of a threshing apparatus. It is a rear view of the general purpose combine to which the present invention is applied. It is a principal part side view of a discharge part. It is a perspective view of a waste-flow board. It is a front view of a dust collection cover body. It is the side view which showed the attachment or detachment aspect of the dust cover body. (A) is a side view showing the storage posture of the dust cover, (B) is a side view showing the working posture in the intermediate opening state of the dust cover, (C) is the maximum of the dust cover It is a side view which shows the working posture in an open state.

Hereinafter, embodiments of the present invention will be described based on illustrated examples.
1 is a side view of a general-purpose combine to which the present invention is applied, FIG. 2 is a side view showing the internal structure of the threshing apparatus, and FIG. 3 is a rear view of the general-purpose combine to which the present invention is applied. This general-purpose combiner is connected to a traveling machine body 2 supported by a pair of left and right crawler type traveling devices 1 that are traveling parts, and is connected to the front part of the traveling machine body 2 so as to be able to be raised and lowered, and performs harvesting work of cereal grains in a field. A trimming unit 3, and the traveling machine body 2 includes a maneuvering unit 4 in which an operator gets behind the mowing unit 3 and performs a steering operation; A threshing device 6 for performing a threshing operation or the like of the cereals produced, and a discharge unit 7 for discharging waste mash etc. from the rear end side of the traveling machine body 2 are provided.

  The mowing unit 3 includes a conveying device 8 that conveys the harvested cereal to the threshing device 6 side, a mowing frame 9 that is connected to the front end side of the conveying device 8 and extends forward, and the front end of the mowing frame 9 A divider 11 provided on the side, a pair of left and right support arms 12 extending forward from the upper side of the rear end portion serving as the base end portion of the cutting frame 9, and the extension of the left and right support arms 12 And a take-up reel 13 rotatably supported between the ends.

  With this configuration, weed the chopped side into the cutting side which is the left and right traveling machine body on the basis of the divider 11 and the non-harvesting side which is outside the left and right traveling machine body (see FIG. 3). The root side of the planted culm is cut by a cutting blade (not shown) provided behind the divider 11 while being scraped to the cutting unit 3 side by the driving reel 13. The harvested cereal grains thus harvested are sent to the front end side of the conveying device 8 and conveyed to the rear side by the conveyor 14 provided inside the conveying device 8. The harvested cereals conveyed to the rear end side of the conveying device 8 are sent to the upper front end side of the threshing device 6.

  The threshing device 6 is threshed by the threshing unit 17 on the upper side of the threshing device 6 and performing the threshing operation of the harvested cereal mash that is conveyed from the conveying device 8 and the threshing unit 17 on the lower side of the threshing device 6. And a threshing frame 16 that surrounds the threshing portion 17 and the sorting portion 18.

  The threshing portion 17 includes a handling chamber 19 into which the harvested cereal rice cake is introduced from the rear end side of the transport device 8 and a front and rear handling cylinder rotating shaft 21 formed over the entire front and rear direction of the handling chamber 19. A cylindrical barrel 22 whose front end is funnel-shaped, and a circle below the barrel 22 and recessed in the center when viewed from the back along the shape of the barrel 22. An arcuate receiving net 23 and a plurality of dust feed valves 24 arranged on the front and rear sides of the handling chamber 19 are provided.

  With this configuration, the harvested cereal mash introduced from the rear end side of the transfer device 8 to the front side of the handling chamber 19 is provided spirally on the side peripheral surface of the front end side of the handling barrel 22 which is a funnel type. Plate-like handle teeth 26a, plate-like handle teeth 26b provided spirally on the cylindrical side surface, and the dust feed valve 24 provided along the handle teeth 26b. Guided to the back of the room. That is, when the handling cylinder 22 rotates clockwise around the handling cylinder rotating shaft 21 (see FIG. 3), the harvested cereal mash introduced into the handling chamber 19 moves to the rear side of the handling chamber 19. And transferred.

  Thereby, the harvested cereals fed into the handling chamber 19 are handled and threshed by the projections 25 attached to the handle teeth 26b at a predetermined interval and the receiving net 23. That is, since the whole harvested cereal mash that has been harvested by the reaping part 3 is put into the handling chamber 19, threshing work is performed on the entire cereal straw.

  As a result, the threshing that has undergone the threshing process passes through the receiving net 23 and falls to the sorting unit 18 on the lower side. In addition, the relatively large waste or the like remaining on the receiving net 23 after the threshing processing is transferred by the spiral plate-like handle teeth 26a and 26b and guided by the dust feed valve 24, thereby the handling chamber 19. It is transferred to the rear end side, falls from the rear end portion of the receiving net 23 to the discharge portion 7, and is discharged outside the apparatus.

  At this time, an L-shaped frame 27 (see FIGS. 2 and 3) is attached to the rear end portion of the receiving net 23 along the shape of the receiving net in a rear view and in a side view. 23 is configured so that the waste or the like falling from the rear end side of 23 does not fall into the sorting unit 18 on the lower side.

  The sorting unit 18 includes a swing sorting body 28 that swings and sorts the cereals that have passed through the receiving net 23, a sorting case 32 that houses the swing sorting body 28, and a red fan 29 that blows the sorting wind. And a second sorting fan 31 for discharging the sorted waste matter to the outside of the apparatus. As a result, the cereal that has fallen from the receiving net 23 is dropped onto the chaff sheave 33 of the swinging sorter 28, and further spilled downward while being sorted by the chaff sheave 33.

  The shed cereal that has been leaked is sorted into the first and second grains by the sorting wind by the Kara fan 29. The selected grain is discharged into a Glen tank 35 for storing the grain by the lifted helix 34, and the grain is out of the machine via the auger 30 extended from the upper rear side of the traveling machine body 2. To discharge. Further, the second product is reduced to the swinging sorter 28 by the reducing spiral 36 via a processing cylinder (not shown) and the sorting operation is performed again.

  At this time, out of the cereals on the swinging sorter 28 that has fallen from the receiving net 23, the dusts such as sawdust sorted by the sorting unit 18 are caused by the wind from the second sorting fan 31 or the like. It is discharged out of the machine from a dust outlet 37 provided on the rear end side of the sorting case 32.

  From the discharge part 7, a relatively large waste that falls from the rear end of the receiving net 23 of the threshing part 17 by the above configuration, and a fine waste that is discharged from the dust outlet 37 of the sorting part 18. Dust is configured to be discharged toward the rear of the traveling machine body 2. The configuration will be described below.

The configuration of the discharge unit will be described in detail with reference to FIGS.
4 is a side view of the main part of the discharge unit, FIG. 5 is a perspective view of the waste plate, FIG. 6 is a front view of the dust cover body, and FIG. 7 is a view of the dust cover body. It is the side view which showed the attachment / detachment aspect. The discharge part 7 is detachably attached to the rear end side of the threshing frame body 16 (rear end side of the sorting part 18), and the rear side is swingable up and down, and the rear of the sorting case 32. A waste-flow plate 42 that extends downward from the end side toward the rear and bends vertically downward at the lower end side, and the waste and dust are disposed on the rear side of the sorting unit 17. A discharge port 43 to be discharged is formed.

  With the above configuration, a relatively large waste or the like falling from the rear end of the receiving net 23 is guided rearward from the machine by the waste plate 42 and ejected from the dust outlet 37 at the rear end of the sorting case 32. The dust discharged as described above is discharged from the discharge port 43 by being guided to the rear rear lower side by the dust cover body 41 (see FIG. 4).

  The scrap plate 42 is bent in an L shape so that the upper end side is close to the rear end side of the sorting case 32, and the gap between the bent upper end side and the lower end side of the dust exhaust port 37 is elastic. In addition to being configured to be covered by a cover body 44 made of deformed rubber or the like (see FIG. 4), a waste plate side guide 46 that guides fallen waste or the like to the right side that is the center side in the rear view. Are provided (see FIG. 3 and FIG. 5). As a result, when the waste or the like transferred to the rear end side of the receiving net 23 is dropped, it is guided to the cover body 44 and the waste plate 42 and discharged to the center rear side of the traveling machine body 2 that is the already-cutting side. Therefore, it is possible to smoothly perform the cutting operation without discharging trash and the like to the uncut side farm field.

  The scrap plate 42 is configured so that it can be easily attached and detached from the rear end of the traveling machine body 2, and maintenance and the like can be easily performed.

  The dust cover 41 is a U-shaped frame that is open on the lower side, and is attached to the rear end of the threshing frame 16 in a detachable manner, and the support frame 47 And a dust cover 48 that opens and closes the discharge port 43.

  The support frame 47 is formed in a U-shaped frame by three rectangular plates, and includes a pair of locking pins 49 at the lower end side of the left and right frames, and the upper end side of the left and right frames. Is fixed to the threshing frame body at a portion extending in a mountain shape toward the left and right outer sides in a front view (see FIG. 6).

  With this configuration, when the dust cover 41 is attached to the rear end of the threshing frame 16, the locking pin of the support frame 47 is attached to the hook member 52 provided on the lower side of the rear end of the threshing frame 16. 49 can be easily positioned by placing them so that the upper end side of the support frame body 47 and the threshing frame body 16 side can be easily moved with the knob bolts 50 using the bolt fixing holes 51. It can be fixed (see FIG. 7). Thereby, since the lower end side of the support frame 47 is supported by the hook member 52, the dust cover body 41 (dust discharge) from the rear end portion of the threshing frame 16 (selection unit 18) even when there is only one worker. The cover 48) can be easily attached and detached, and the discharge unit 7 can be easily maintained.

  The dust cover 48 is attached to the upper end side of the support frame 47 via a hinge 53 serving as a rotation fulcrum so as to cover the discharge port 43 on the rear end side of the traveling machine body 2. It is configured to be switchable between a housing posture in which the opening of the discharge port 43 is reduced by swinging 48 downward and a working posture in which the opening of the discharge port 43 is increased by swinging the dust exhaust cover 48 upward. . Details will be described later.

  In addition, the dust cover 48 is bent toward the traveling machine body 2 at the intermediate portion, and is provided toward the lower side from the bent portion to guide the dust to the left side (see FIG. 6) when viewed from the front. The exhaust cover side guide 56 is provided with a pair of left and right side covers 54 that are formed in a fan shape toward the lower side with the hinge 53 as a fulcrum, and cover the side sides in the working posture. At this time, the shape of the side cover 54 is such that the end opposite to the sorting portion 18 is formed along the bent shape of the dust cover 48, and the sorting portion 18 side is in the waste-flowing plate when stored. It is notched so as not to wrap with 42 (see FIG. 7).

  With this configuration, the dust discharged from the dust outlet 37 by the tang fan 29 and the second sorting fan 31 strikes the inside of the dust cover 48 in the working posture, and the dust cover 48 is bent. The dust cover side guide 56 guides it to be discharged toward the center side of the traveling machine body 2 toward the outside lower side along the shape. At this time, since the dust can be prevented from being scattered in the left and right direction of the traveling machine body 2 by the side cover 54, the cutting work can be performed without excessively scattering the dust.

  A plate-like hinge cover body 57 that covers the hinge 53 for attaching the dust cover 48 is attached to the upper end side of the support frame 47 in a manner toward the rear lower side in a side view. Is extended to a range where it does not come into contact with the dust cover 48 when in the stowed position. With this configuration, the hinge cover body 57 is attached without hindering the vertical swing of the dust cover 48, and dust exhausted from the dust outlet 37 by the second sorting fan 31 or the like is applied to the hinge 53. Since it can be prevented from adhering, it becomes difficult to break down, and the discharge of dust out of the machine is also good (see FIGS. 2 and 4).

Next, the opening / closing mechanism of the dust cover will be described with reference to FIG.
FIG. 8A is a side view showing the storage posture of the dust cover, FIG. 8B is a side view showing the working posture in the intermediate opening state of the dust cover, and FIG. It is a side view which shows the working posture in the maximum opening state of a dust cover. An arc-shaped slit 58 is provided on the lower end side of the support frame 47 from the traveling machine body 2 side to the dust cover 48 side, and a sorting unit is provided on the sorting unit 18 side on the lower end side of the side cover 54. A side fixing hole 59 is drilled, and a center side fixing hole 61 is drilled in the central portion on the lower end side of the side cover 54.

  Further, when the dust cover 48 is swung downward to the sorting portion 18 side to the accommodation posture, the center side fixing hole 61 and the sorting portion side end portion of the slit 58 are overlapped, so that the knob bolt 60 is inserted. Thus, the housing posture can be fixed. At this time, the pair of left and right side covers 54 are accommodated in the support frame body 47 and the sorting unit 18 and wrapped in a side view, so that the longitudinal length of the traveling machine body 2 can be shortened (see FIGS. 7 and 7). 8 (A)).

  Even when the dust cover 48 is swung downward to the accommodation posture, the lower side of the support frame 47 is open, so that the discharge port 43 is not closed, and the dust and the like are discharged. Therefore, the cutting operation can be performed in the accommodated posture.

  Next, by inserting and fixing a knob bolt to the sorting portion side fixing hole 59 and the dust cover side end of the slit 58, the dust cover 48 is swung upward to open the discharge port 43 to the maximum. The dust cover 48 can be fixed in the working position in the maximum opening state (see FIG. 8C), and the knob bolt 60 is attached to the center side fixing hole 61 and the end portion of the slit 58 on the dust cover side. By inserting and fixing, the dust cover 48 can be fixed in a working posture in an intermediate opening state between the storage posture and the maximum opening state (see FIG. 8B). That is, the opening degree of the discharge port 43 can be changed in a plurality of stages by switching the position of the dust cover 48 by swinging up and down.

  At this time, a part of the pair of left and right side covers 54 is wrapped with the inside of the support frame 47 in a side view, so that no gap is formed between the support frame 47 and the side cover 54 even in the working posture. The discharged dust is not scattered in the left-right direction.

  In addition, since the opening degree of the dust cover 48 can be adjusted by fixing the fixing holes 59, 61 provided on the side cover 54 side at an arbitrary position in the slit 58, the dust cover 48 can be trimmed. The working efficiency can be increased by switching to an opening suitable for the type of grain to be produced.

2 traveling machine body 3 reaping part 17 threshing part 18 sorting part 43 outlet 47 support frame (support frame)
48 Dust cover

Claims (1)

A threshing part (17) for threshing the cereals harvested by the cutting part (3) on the front side of the traveling machine body (2), and the threshing processed by the threshing part (17) as grain and dust The traveling machine body (2) is provided with a sorting unit (18) for sorting, and a discharge port (43) for discharging the dust collected by the sorting unit (18) from the rear end of the traveling machine body (2) is sorted. A dust cover (48) formed on the rear end side of the portion (18) and guiding the dust discharged from the discharge port (43) to the lower side is provided at the rear end of the sorting portion (18). in general-purpose combine attached to the side, provided with the dust-exhaust cover (48), the sorting unit (18) attached are supporting frame in freely manner detachable to the rear end (47), the dust-exhaust cover (48) Is swung to the opposite side of the sorting part (18) with the upper side as a fulcrum, and partly sorted by being swung to the sorting part (18) side. (18) As in the housing attitude to be accommodated which can be switched in, to support the exhaust dust cover (48), a general purpose combine capable of changing the degree of opening of the outlet (43) by the attitude switching.

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