JP7175292B2 - combine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a combine harvester in which a part of the threshing chamber of the threshing device is configured to be openable.

As a combine having the above configuration, Patent Document 1 describes a technique in which grain sieves and grain pans can be alternately taken in and out on the side wall of the threshing device, and the side wall is provided with an inspection opening that can be freely opened and closed by a lid. ing.

Further, Patent Document 2 describes a technique in which a top plate of a threshing device is provided to be openable and closable via a hinge, and the upper part of the threshing chamber can be largely opened by opening the top plate.

JP-A-08-103149 JP 2015-42188 A

The opening formed in Patent Document 1 is formed in the side wall of the threshing device so that the grain sieve and the grain pan of the rocking sorting case inside the threshing device can be taken out separately. In other words, this threshing apparatus is constructed so that the straw waste can be easily removed by removing the lid and sequentially taking out the grain sieve and the grain pan through the opening.

In Patent Document 2, one side of the top plate of the threshing chamber of the threshing device in the left-right direction is supported by a hinge so that it can be freely opened and closed, and the other side of the top plate in the left-right direction is fixed with a bolt, and the bolt can be removed. is configured to allow the top plate to be opened.

As described in Patent Documents 1 and 2, in a configuration in which the threshing device is provided with a threshing cylinder and a receiving net (concave in Patent Document 1) below the threshing cylinder, the receiving net is treated during the threshing process. Part of the material got in and caused clogging, which reduced the processing capacity.

Such clogging often occurs when the material to be treated contains a large amount of water, and prompt countermeasures are required. In order to address such a problem, the openings described in Patent Document 1 are located at a distance from the receiving net, so it is difficult to remove the clogging. In addition, in the configuration described in Patent Document 2, the top plate can be opened, but even if the top plate is opened, it is difficult to eliminate clogging because the handling cylinder is arranged above the receiving net. Met.

In addition, as described in Patent Document 1, a threshing device and a grain tank are arranged side by side, and an opening is formed on the outside of the threshing device (the outer surface opposite to the grain tank). It was difficult to eliminate clogging on the side adjacent to the grain tank, and there was room for improvement in this respect as well.

For this reason, even if the threshing device and the grain storage section are arranged side by side in the left-right direction, the combine harvester can easily perform inspection and maintenance of the receiving net of the threshing device from the side near the storage section. is required.

The characteristic configuration of the combine according to the present invention is provided in a state in which a threshing device for threshing the harvested material supplied from the reaping unit and sorting grains, and the threshing device and the threshing device in the left-right direction of the machine body, A storage part for storing grains obtained by the threshing device is provided, and the threshing device includes a threshing cylinder driven and rotated about a drive shaft, and a processed material separated from the harvested material below the threshing cylinder. and a sorting unit for picking out grains from the treated material that has leaked down the receiving net. A raking section that rakes backward and a handling section that is provided behind the raking section and performs handling processing of the raking harvested material. Among them, an inspection opening is formed at a position facing the handling part, and a lid capable of opening and closing the inspection opening is provided, and upper and lower portions of the lid are fixed to the side wall, and the lid The vertical distance between the fixing point of the lower part of the body and the connecting part of the upper half and the lower half of the side wall is determined by the fixing point of the upper part of the lid body and the frame provided at the upper end of the side wall. longer than the vertical distance between the lower surface, the upper end of the inspection opening is positioned above the side wall, and the lower end of the inspection opening is higher than the lower end of the receiving net The upper and lower portions of the lid are fixed to the side wall by fixing bolts projecting outward from the left and right sides of the side wall. and the fixing bolts corresponding to the upper portion of the lid are arranged along the frame adjacent to the frame. .

Clogging of the receiving net is often caused by part of the processed material being pushed into the mesh of the receiving net when the harvested material, which contains a lot of moisture, presses against the receiving net with a strong force as the threshing cylinder rotates in the handling chamber. expected to occur. In addition, the squeezing cylinder has a picking section for picking up the harvested material supplied to the squeezing chamber and feeding it along the drive shaft core, and a scraping section for squeezing the harvested material picked up by the scraping section. In the integrally formed structure, as shown in Patent Document 2, the receiving net is arranged in the region along the handling portion, so clogging is likely to occur in the handling portion.

Considering such a problem, according to the characteristic configuration of the present invention, an opening is formed in a side wall of the threshing apparatus on the side of the storage part at a position facing the handling part, and a lid closing this opening is detachable. freely prepared. Therefore, by removing the cover to open the opening, the sides of the receiving net can be opened, and the clogging of the receiving net can be easily eliminated.
Therefore, even if the threshing device and the grain storage section are arranged side by side in the left-right direction, the combine can be easily inspected and maintained from the side near the storage section of the threshing device .

As another configuration, the threshing device is provided with a first product recovery unit that recovers the first product selected by the sorting unit, and is erected between the threshing device and the storage unit, A lifting mechanism is provided for conveying the first object from the object collecting unit upward and supplying it to the storage unit, and the inspection opening is formed at a position that does not overlap with the lifting mechanism in a side view. Also good.

As another configuration, the receiving net is formed in an arc extending from a position below the handling cylinder to a position higher than the driving shaft center on the side of the handling cylinder, and the inspection opening is formed in the handling cylinder. In a side view, it may be formed at a position overlapping with the receiving net.

According to this, by opening the inspection opening, the side of the receiving net is largely exposed, and clogging in a wide area of the receiving net can be eliminated, and inspection and maintenance in the handling chamber can be easily performed.

It is a left view which shows the whole combine. It is a right view which shows the whole combine. It is a top view which shows the whole combine. It is a longitudinal side view of a threshing device. It is a right side view of a threshing device. It is a vertical cross-sectional rear view of a threshing device. FIG. 6 is a cross-sectional view taken along line VII-VII of FIG. 5; 6 is a cross-sectional view taken along line VIII-VIII of FIG. 5; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. [Basic configuration of a combine harvester]
1, 2 and 3 show the entire combine of this embodiment. 1 shows a left side view, FIG. 2 shows a right side view, and FIG. 3 shows a plan view. The rearward direction of the machine body 1, the direction [L] shown in FIG.

As shown in FIGS. 1, 2 and 3, the combine has a driving section 3 arranged at the front right portion of a traveling machine body 1 which can freely travel with a pair of left and right crawler traveling devices 2. The driving section 3 is provided with a driver's seat 4. ing. The driving section 3 is provided with a canopy 5 above the driver's seat 4 and an engine 6 below the driver's seat 4 .

The traveling machine body 1 is provided with a threshing device 7 and a bagging section 8 (an example of a storage section for grains) arranged side by side on the left and right. A reaping unit 15 is arranged on the front side of the traveling body 1 , and a reaping and conveying device 14 for supplying the harvested material from the reaping unit 15 to the threshing device 7 is provided. That is, as shown in FIG. 3, the threshing device 7 and the bagging unit 8 are arranged side by side, the harvesting and conveying device 14 is arranged on the left side of the operating unit 3, and the bagging unit 8 is arranged on the rear side of the operating unit 3. are placed.

In this combine, a reaping portion 15 is connected to the front end of a reaping and conveying device 14, and a base end portion of the reaping and conveying device 14 is supported so as to be swingable about a swing axis Y in a lateral posture. A lifting cylinder 16 is arranged between 14 and the body frame 1 a of the traveling body 1 . With this configuration, the reaping unit 15 and the reaping transport device 14 are swung integrally around the swing axis Y by the expansion and contraction of the elevating cylinder 16, and the reaping height of the reaping unit 15 can be adjusted.

When the combine harvester is used for harvesting, the harvesting unit 15, the harvesting transport device 14, and the threshing device 7 are operated in advance, and the harvesting unit 15 is set to the optimum height for harvesting the crop. The traveling body 1 is moved forward. In this harvesting work, crops such as rice, wheat, and soybeans are harvested by the harvesting unit 15 and supplied to the threshing device 7 by the harvesting and conveying device 14 . In the threshing device 7 , grains are collected by processing the supplied harvested material, and the collected grains are stored in the grain tank 18 of the bagging unit 8 .

The reaping and conveying device 14 is provided with a dust discharge device 17 to discharge cut straws and dust generated when the reaping and conveying device 14 conveys the harvested material to the side opposite to the operation unit 3 .

[Structure of bagging part]
As shown in FIG. 2, the bagging section 8 has three hopper sections 19 arranged in the front-rear direction at the bottom of a grain tank 18, and each hopper section 19 has a discharge cylinder 19a at the lower end thereof. On the body frame 1a below the bagging section 8, there is a working posture that can be freely switched between a usage posture that extends outward as shown in FIG. A utility deck 12 is supported. Furthermore, a sun visor 9 is provided above the bagging section 8 .

The bagging part 8 is provided with a handrail bar 10 along the side surface of the grain tank 18, and an auxiliary bar 11 used by the bagging operator as a back support is provided outside of this. When working in the bagging section 8 from this configuration, the worker stands on the work deck 12 with the auxiliary bar 11 behind him, attaches the grain bag to the hopper section 19, and loads the grain from the grain tank 18. Easy operation of feeding the grain into the grain bag is made possible.

[Configuration of Reaping Unit]
As shown in FIGS. 1, 2 and 3, the reaping station 15 includes a reaping station frame 20 . The reaping unit frame 20 includes a rear wall frame portion 21 connected to the extending end portion of the reaping and conveying device 14, lateral side wall frame portions 22 extending forward from both lateral end portions of the rear wall frame portion 21, It is composed of a deck frame portion 23 extending forward from the lower end portion of the rear wall frame portion 21 .

A clipper-type reaping device 24 is provided in the front portion of the deck frame portion 23, and an auger 25 is provided above the deck frame portion 23 so as to be rotatable around a laterally facing drive shaft.

A rotating reel 27 is provided on the front side above the harvesting device 24 . The rotating reel 27 is rotatably supported on the front end side of a reel support arm 26 extending forward from the reaping unit frame 20 about its axis in a lateral posture. Further, dividers 28 are provided at the front end portions of the left and right lateral wall frame portions 22 .

From this configuration, in the harvesting work, the planted grain culms are separated from the planted grain culms to be reaped by the divider 28 and the planted culms not to be harvested by moving the traveling body 1 forward while each part of the reaping unit 15 is driven. The planted culms to be harvested are scooped up by the divider 28.

While the tip side of the planted culm to be harvested is pulled backward by the tines 27 a of the rotary reel 27 , the root of the plant is cut by the harvesting device 24 . The harvested grain culms (harvested product) cut in this way are all culms from the root of the plant to the tip of the head. be collected. The harvested grain culms are supplied to the harvesting and conveying device 14 through an opening (not shown) of the rear wall frame portion 21 and supplied to the threshing device 7 by the harvesting and conveying device 14 .

[Configuration of threshing device]
As shown in FIGS. 1 to 4, the threshing device 7 has a threshing body 30. As shown in FIGS. As shown in FIGS. 4 and 6, a threshing unit 31 is arranged in the upper part of the threshing machine 30, a sorting unit 32 is arranged in the lower part of the threshing machine 30, and the first thing is collected under the sorting unit 32, A first conveying mechanism 47 (an example of the first article collecting section) that conveys the first article in the direction and a second conveying mechanism 48 (an example of the second article collecting section) that collects the second article and conveys it in the horizontal direction are arranged. ing.

In this threshing apparatus 7, the harvested grain culms supplied to the threshing chamber 33 are referred to as the harvested product, and the harvested product handled in the threshing chamber 33 is referred to as the processed product. The processed material includes grains, cut straws, and the like. The first product is a processed product that mainly contains grains, and the second product is a processed product that contains a large amount of grains that are not sufficiently single grained and cut straws.

The threshing part 31 accommodates a threshing cylinder 34 inside a threshing chamber 33 and has a receiving net 39 under the threshing cylinder 34 . The receiving net 39 has a front end at a position corresponding to the boundary between the raking portion 42 and the handling portion 43 and a rear end near the rear end of the raking portion 42 . The threshing chamber 33 includes a front wall 35 on the front side of the threshing machine 30, a rear wall 36 on the rear side, a left side wall 37a, a right side wall 37b, and a top plate 38 covering the top. A supply port 33a through which the harvested material is supplied is formed at a lower position of the front wall 35 of the processing chamber 33, and a guide bottom plate 44 is arranged below the supply port 33a. A dust outlet 33b is provided on the lower side of the rear wall 36 of the handling chamber 33. As shown in FIG.

A plurality of plate-shaped dust valves 38a are provided on the inner surface (lower surface) of the top plate 38 at set intervals in the front-rear direction. A plurality of dust feed valves 38a are provided in a posture inclined with respect to the drive shaft center X in a plan view so as to exert a force to move the material to be processed rearward, which rotates together with the cylinder 34 in the material handling chamber 33. .

The handling cylinder 34 is coaxial with the drive shaft X in the front-rear direction and integrally rotates with a rotary support shaft 40 penetrating the front wall 35 and the rear wall 36 in the front-rear direction. That is, the front end of the rotary support shaft 40 is rotatably supported by the front wall 35 via a bearing, and similarly, the rear end of the rotary support shaft 40 is rotatably supported by the rear wall 36 via a bearing. . In the threshing section 31 , driving torque is transmitted from the rotation drive mechanism 41 to the front end portion of the rotation support shaft 40 .

In this threshing device 7, as shown in FIG. 6, the left side of the top plate 38 is supported through a plurality of hinges 38c so as to be able to swing open and close about the opening/closing axis in the forward/backward posture. It is constructed so that the portion can be maintained in a closed posture by a clamp 38d. A left side wall 37a of the threshing device 7 is provided so as to swing outward about an opening/closing support shaft 37c.

Thus, by operating the clamp 38d to open the top plate 38, inspection and maintenance of the handling chamber 33 can be performed from above, and by swinging the left side wall 37a outward, the handling chamber 33 can be inspected from the left outside. Allows for internal inspection and maintenance. Further, by opening the top plate 38, the receiving net 39 can be extracted upward. Further, when the left side wall 37a is opened by swinging about the opening/closing support shaft 37c, it reaches a substantially horizontal posture as shown in FIG. The front end of the left side wall 37a that can be opened and closed corresponds to the front end position of the receiving net 39, and the rear end of the left side wall 37a corresponds to the rear end position of the receiving net 39.

In particular, an inspection opening W is formed in the right side wall 37b, and by opening this inspection opening W, it becomes possible to inspect and maintain the interior of the handling chamber 33. This configuration will be described later.

As shown in FIG. 4, the handling cylinder 34 is constructed by integrally forming a scraping portion 42 at the front end and a handling processing portion 43 behind the scraping portion 42 . The scraping portion 42 has a double-helical helical blade 42b on the outer peripheral portion of a tapered base portion 42a whose diameter becomes smaller toward the front end side of the handling barrel 34. As shown in FIG. As shown in FIG. 8, the handling unit 43 has a plurality of handling teeth 43b on the drive shaft center X for six rod-shaped handling teeth support members 43a provided at predetermined intervals in the circumferential direction of the handling cylinder 34. They protrude toward the outer peripheral side of the handling cylinder 34 at predetermined intervals along the line.

In the threshing section 31, the harvested material from the reaping and conveying device 14 is supplied to the threshing chamber 33 through the supply port 33a. The harvested material thus supplied is raked behind the squeezing cylinder 34 along the guide bottom plate 44 by the spiral blade 42 b of the squeezing section 42 and supplied to the squeezing processing section 43 . In the threshing section 43, as the threshing drum 34 rotates, the harvested material is threshed by the threshing teeth 43b and the receiving net 39. As shown in FIG.

When threshing is carried out in this manner, the material to be processed is rotated together with the threshing cylinder 34, so that the material to be processed contacts the dust feed valve 38a and is conveyed to the rear portion of the threshing chamber 33 while being threshed. The grains obtained by the threshing process and short pieces of straw, etc., leak through the receiving net 39 and fall into the sorting unit 32, but the processed materials (grain culms, long pieces of straw, etc.) that cannot leak out of the receiving net 39 ) is discharged out of the handling room from the dust outlet 33b.

[Configuration of receiving network]
As shown in FIGS. 4 and 6, the receiving net 39 includes a plurality of arc-shaped vertical frames 39t, and pipe-shaped horizontal frames 39p and plate-shaped horizontal frames fixed in a posture perpendicular to the plurality of vertical frames 39t. 39y are provided in the circumferential direction of the handling cylinder 34 at predetermined intervals. Due to this configuration, a large number of leakage holes are formed between the vertical frame 39t, the pipe-shaped horizontal frame 39p, and the plate-shaped horizontal frame 39y.

That is, the receiving net 39 is arranged in an arc-shaped region extending from the lower side of the handling cylinder 34 to a position higher than the drive shaft center X when viewed in the direction along the drive shaft center X. As shown in FIG.

As a specific configuration, a plurality of pipe-shaped horizontal frames 39p and plate-shaped horizontal frames 39y are provided for a plurality of vertical frames 39t to form one divided receiving net 39A. A receiving net 39 is formed in combination. Further, the threshing machine 30 is provided with a front support member 60, a rear support member 61, and an intermediate support member 62, on which six divided receiving nets 39A are separably supported.

A rear support member 61 is positioned across the left side wall 37a and the right side wall 37b, and its ends 61a are connected to the corresponding side walls (the left side wall 37a and the right side wall 37b) and extend downward from the rear support member 61. A dust port 33b is arranged. In this configuration, the threshing section 31 can take out the six divided receiving nets 39A individually.

[Structure of Sorting Unit]
As shown in FIG. 4, the sorting section 32 includes a rocking sorting device 45 and a winnow 46. Under the rocking sorting device 45, a No. 1 conveying mechanism 47 and a No. 2 conveying mechanism 48 are provided. are placed.

The swing sorting device 45 is arranged below the receiving net 39 . The oscillating sorting device 45 includes a sheave case 65 that is oscillated by an oscillating drive mechanism 49 using an eccentric shaft or the like. , a lower grain pan 70 and a grain sieve 71 .

That is, the chaff sieve 67 is arranged behind the upper grain pan 66 at a position slightly lower than the upper grain pan 66 , and the straw rack 68 is arranged behind the chaff sieve 67 . The lower grain pan 70 is arranged below the front end of the chaff sieve 67, and the grain sieve 71 is arranged behind it.

The winnow 46 accommodates a winnow main body having a plurality of rotating blades 46b inside a fan case 46a, and is rotatable by a laterally-oriented drive shaft. At the top of the fan case 46a, an upper discharge port 46c for sending the sorting air along the upper surface of the lower grain pan 70 and a rear outlet 46d for sending the sorting air rearward are formed.

The sieve case 65 has an air path for supplying the sorted air supplied from the upper outlet 46c of the winnow 46 along the lower surface of the upper grain pan 66, and an air path for supplying the sorted air supplied from the rear outlet 46d of the winnow 46 along the lower grain pan. An air passage for supplying air is formed along the upper surface of 70 . Furthermore, a dust discharge port 50 is formed at the rear end position (right end in FIG. 4) of the swing sorting device 45 . Discharge port covers 51 are arranged on both sides of the dust discharge port 50 .

The first conveying mechanism 47 is configured as a first screw that laterally conveys the first product (grain) guided by the first product guide portion 75 . The second conveying mechanism 48 is configured as a second screw that laterally conveys the second article guided by the second article guide section 76 .

As shown in FIGS. 4 and 5, a lift mechanism 52 and a return transport mechanism 53 are provided on the lateral outer side of the threshing machine 30 on the bagging section side. That is, the screw-type lifting mechanism 52 is erected at a position for lifting the first grain (grain) transported in the horizontal direction by the first transport mechanism 47 to the grain tank 18 . A screw-type return transport mechanism 53 is provided for returning the second product laterally transported by the second transport mechanism 48 to the front portion of the swing sorting device 45 . As shown in FIG. 5, the lift mechanism 52 and the return transfer mechanism 53 are arranged so as to cross each other in a side view.

A reprocessing case 54 is provided at the base end position of the return transfer mechanism 53 . The reprocessing case 54 includes a reprocessing plate that rotates integrally with the screw of the first transport mechanism 47. When the processed material is transferred from the second transport mechanism 48 to the reduction transport mechanism 53, the reprocessing plate is doubled. It is configured to promote single granulation by bringing it into contact with the grain. Further, the upper end of the return transport mechanism 53 is formed with a discharge section for sending out the second product toward the front portion of the rocking sorting device 45 .

With such a configuration, in the sorting unit 32, the processed material leaked from the receiving net 39 is supplied to the sheave case 65, and the processed material is moved backward as the driving force of the rocking drive mechanism 49 causes the rocking movement. , and the sorting process is performed by receiving the sorting wind from the winnow 46 during this transport.

The first grain obtained by this sorting process flows down from the first grain guide section 75 to the first grain conveying mechanism 47 and is collected, and is stored in the grain tank 18 of the bagging section 8 by the lifting mechanism 52 . In addition, the second product obtained by the sorting process flows down from the second product guide section 76 to the second transport mechanism 48 and is recovered. The granules are returned to the front portion of the swing sorting device 45 to be made into single granules. Dust such as straw scraps generated by the sorting process is sent rearward from the rear end of the rocking sorting device 45 and discharged to the outside from the dust outlet 50 .

[Inspection opening]
In a harvesting operation using a combine harvester, for example, when water droplets are attached to the grain culms or when the grain culms contain a lot of water, clogging occurs in the receiving net 39 of the threshing device 7, causing the receiving net 39 to become clogged. In some cases, the leakage of the treated material was not performed properly.

When clogging occurs in the receiving net 39, as described above, the closed state by the clamp 38d is released, and the top plate 38 of the threshing device 7 is opened by swinging the hinge 38c, It is also conceivable to remove the left side wall 37a, open this left side wall, and perform the work of removing the clogging.

In particular, when the left side wall 37a is opened, although the side of the receiving net 39 can be opened and good work can be performed, it is difficult to eliminate the clogging of the receiving net 39 on the opposite side. 7, an inspection opening W is formed in the right side wall 37b. The inspection opening W is configured to be opened by removing the cover Wa.

That is, on the right side wall 37b, a first inspection opening 81 and a first inspection opening 81 are provided as an inspection opening W at a position corresponding to the outer side of the handling portion 43 of the handling cylinder 34 (a position overlapping the handling portion 43 in a side view). , and a second inspection opening 82 are formed.

The first inspection opening 81 (inspection opening W) is an area of the right side wall 37b that overlaps the receiving net 39 in a side view and extends from the center to the rear end of the area where the receiving net 39 is arranged in the front-rear direction. Inside, it is formed behind the lifting mechanism 52 . The first inspection opening 81 is detachably provided with a main lid 83 (cover Wa). As shown in FIG. 7, a plurality of fixing bolts 85 project outward from the right side wall 37b of the threshing device 7 so as to keep the main lid 83 closed. The main lid body 83 is maintained in a closed state by inserting the nuts 86 into the through holes of the main lid body 83 and screwing nuts 86 onto the respective fixing bolts 85 and tightening them.

The second inspection opening 82 (inspection opening W) of the right side wall 37 b overlaps the receiving net 39 in a side view and is formed above the discharge portion at the upper end of the return transport mechanism 53 . The second inspection opening 82 is detachably provided with a sub-cover 84 (cover Wa). As shown in FIG. 8, a plurality of fixing bolts 85 project outward from the right side wall 37b of the threshing device 7 so as to keep the sub-cover body 84 closed. The sub-cover 84 is maintained in the closed state by inserting the through-holes of the sub-cover 84 and screwing nuts 86 onto the respective fixing bolts 85 and tightening them.

From such a configuration, for example, when clogging occurs in the receiving net 39, the main lid 83 is removed to open the first inspection opening 81, and the sub lid 84 is removed to open the second inspection opening 81. By opening the openings 82, the receiving net 39 is exposed to these openings, and clogging can be easily eliminated.

In particular, in this configuration, the operator stands on the upper surface of the top plate 38 or the like of the threshing device 7 and inserts tools into the inspection opening W from the space between the threshing device 7 and the bagging unit 8 to perform the work. As shown in FIG. 2, the bagging section 8 has a structure in which the lower side of the hopper section 19 is largely open. can be removed, and tools can be inserted through the first inspection opening 81 and the second inspection opening 82 to carry out the work.

[Another embodiment]
The present invention may be configured as follows other than the above-described embodiments (components having the same functions as those of the embodiments are given the same numbers and symbols as those of the embodiments).

(a) The inspection opening W of the configuration of the present invention is provided in a combine having a grain tank configured so as to be able to turn around an axis in a vertically oriented posture as a storage section. In the combine harvester with this configuration, the right side wall 37b can be exposed by turning the grain tank, so that the main lid 83 and the sub lid 84 can be easily removed, and the first inspection opening 81 can be easily removed. and the second inspection opening 82, the handling chamber 33 can be easily maintained and inspected.

(b) For example, the main cover 83 that closes the first inspection opening 81 and the sub cover 84 that closes the second inspection opening 82 may be supported on the right side wall 37b by wires or the like. . With this configuration, even when the main lid 83 and the sub-lid 84 are separated from the right side wall 37b, they can be supported by hanging from the right side wall 37b. The handling of the body 83 and the sub-cover body 84 becomes easy.

INDUSTRIAL APPLICABILITY The present invention can be used for a combine in which a threshing section and a storage section are arranged side by side in the horizontal direction.

1 traveling body 7 threshing device 8 bagging section (storage section)
15 Reaping part 32 Sorting part 34 Handling cylinder 37b Right side wall (side wall)
39 Receiving net 42 Scraping unit 43 Handling processing unit 47 No. 1 conveying mechanism (No. 1 item collecting unit)
52 Lifting mechanism 85 Fixing bolt W Inspection opening Wa Lid body X Drive shaft center

Claims (3)

a threshing device for threshing the harvested material supplied from the harvesting unit and sorting the grains;
A storage unit provided in parallel with the threshing device in the left-right direction of the machine body and storing grains obtained by the threshing device,
The threshing device includes a threshing cylinder driven and rotated around a drive shaft, a receiving net for leaking the processed material separated from the harvested material below the threshing cylinder, and grain from the processed material leaked from the receiving net. A sorting unit for taking out grains is provided,
The squeezing cylinder is provided at the front end of the squeezing cylinder and is provided with a raking section for raking the supplied harvested material rearward; and a handling unit that performs
An inspection opening is formed in a side wall of the threshing device on the side of the storage portion at a position facing the handling portion,
A lid capable of opening and closing the inspection opening is provided,
upper and lower portions of the lid are fixed to the side walls,
The vertical distance between the fixed portion of the lower portion of the lid and the connecting portion between the upper half portion and the lower half portion of the side wall is provided between the fixed portion of the upper portion of the lid and the upper end portion of the side wall. longer than the vertical distance between the lower surface of the
The upper end of the inspection opening is positioned above the side wall, and the lower end of the inspection opening is positioned above the lower end of the receiving net,
The upper and lower portions of the lid are fixed to the side wall by fixing bolts projecting outward from the side wall to the left and right,
The fixing bolt is provided in such a manner that the tip of the fixing bolt does not protrude left and right outside beyond the left and right outer ends of the side wall,
A combine harvester in which a plurality of the fixing bolts corresponding to the upper portion of the lid are arranged along the frame in a state adjacent to the frame . The threshing device is provided with a first product recovery unit that recovers the first product sorted by the sorting unit,
A lifting mechanism is provided upright between the threshing device and the storage unit, conveys the first product from the first product recovery unit upward and supplies it to the storage unit,
The combine according to claim 1, wherein the inspection opening is formed at a position not overlapping with the lifting mechanism in a side view. The receiving net is formed in an arc shape extending from a lower position of the handling cylinder to a position higher than the driving shaft center on the side of the handling cylinder,
The combine according to claim 1 or 2 , wherein the inspection opening is formed at a position overlapping with the receiving net in a side view of the handling cylinder.

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