KR20060110864A - Combine harvester - Google Patents

Abstract

A threshing device capable of solving a problem wherein sorting treatment cannot be sufficiently performed when grains and waste straw flowing down from a threshing part are carried to a chaff sieve in large quantities at a time or the grains are wet. In the threshing device having a threshing part (20) and a sorting part (30), a sieving device (120) is installed between a receiving net (23) and a suction fan (40) disposed at the rear of the receiving net on its extension on the lower side of the threshing cylinder (22) of the threshing part (20) and on the upper side of the swing sorting device (31) of the sorting part (30). A guide member (121) is installed between the receiving net (23) and the sieving device (120).

Description

Combine {COMBINE HARVESTER}

This invention relates to the combine which conveys the harvested grain stem to a threshing part, threshes, the grain after sorting is stored in a grain tank, and a discharge straw is discharged | emitted to the exterior.

Conventionally, in a combine, the grain stem harvested by the harvesting | reaping part is conveyed by conveyance apparatuses, such as a feed chain and a discharge straw chain, and is supplied to the threshing part which has a barrel. In the threshing part, threshing is performed by the rotation of the barrel provided with many rapid teeth, and the discharge straw after threshing is discharged | emitted behind a gas. On the other hand, below the barrel, a water net formed in a semicircular shape when viewed from the front is disposed so as to cover the downward circumference of the barrel, and grains, straws, and rubbish which are laid down from the water net are threshing parts. It sorts out by the sorting part arrange | positioned below, among them, straw, waste, etc. are discharged | emitted from the back of a gas, and a grain is comprised so that it may be stored in the grain tank arrange | positioned at the side of a threshing part.

In the rocking | pulverization sorting apparatus of the sorting part arrange | positioned under a threshing part, the chaff sieve which consists of a plurality of chaff pins is provided, and the processed object, such as a grain or a straw which flows out from a threshing part, is selected by this gum-blow body, and it grains. It is known to press down and transfer the straw to the back of the black body (for example, refer to Patent Document 1).

By the way, when the grain and straw which flow down from a threshing part are conveyed to a gum body in large quantities at one time, or when a grain is a wet material, it becomes impossible to fully perform a sorting process.

In addition, the swinging main body of the sorting part is pivoted by the whole of the swinging body so as to be swingable, and the rear part of the swinging body is connected to a swinging drive shaft such as a crank shaft or an eccentric shaft to drive the swinging drive shaft. The main body is swung in the front-rear direction to carry out "weight selection" while conveying a hell, a straw or the like backward. At the same time, by blowing the sorting wind from the tuyere arranged below the swinging body below the swinging body, "ballooning" is carried out. In the sorting part of the "gap sorting" which sorts by the primary object, the secondary object, the straw, etc., was performed.

In addition, the sorting cylinder below the swinging body is sequentially moved from the front to the first port for conveying the tuyere, the primary object leaking from the swinging body to the grain tank, and the secondary object to the threshing part through the reduction conveyor. A second conveyor for reducing and returning is rolled out, and a second fan is installed between the second conveyor and the first conveyor, and the second fan is configured to blow the preliminary sorting wind by the second fan, so that the wind power of the sorting wind caused by the tuyere is weakened. The technique which prevents a fall of sorting performance also in the back part is known.

In addition, since a straw or the like falling from the sorting part is attached to the second fan and becomes an obstacle to the sorting wind, the flow of sorting wind may be disturbed. Therefore, a technique for arranging a discharge port for ejecting the preliminary sorting wind to the rear of the sorting part is also used. It is known (for example, refer patent document 2).

However, it is possible to prevent the disturbance of the sorting wind in the outlet part (rear part of the sorting part) of the sorting part, but the discharge of dust which floats around the upper part of the fan casing which arose from the threshing part was not considered.

In addition, when dust and the like are clogged with straw racks to separate and maintain the shake screening device, it is difficult to remove the suction fan or the wind guide due to obstruction.

Moreover, when dust collects in the upper part of a fan casing, it may become agglomerate, falls to the sorting part, and may cause clogging, or may reduce the sorting performance.

In addition, in the lower fan casing, when the discharge guide is configured to be long downward, it is obstructed when removing the swing sorting device in the rear, such as when maintaining the swing sorting device, and it is necessary to remove the operation, which is cumbersome for maintenance.

[Patent Document 1] Japanese Patent Application Laid-Open No. 2001-45853

[Patent Document 2] Japanese Patent Application Laid-Open No. 2003-180150

〈Problems to Solve Invention〉

Accordingly, the present invention not only improves the sorting efficiency of the secondary material under the suction fan, but also sucks and discharges dust collected on the upper surface of the fan casing by using the suction wind of the suction fan, Configure the rear guide plate to be folded.

〈Means for solving the problem〉

The problem to be solved by the present invention is as described above, and the means for solving the problem will be described next.

That is, in the threshing apparatus which consists of a threshing part and a sorting part, the sifting apparatus is provided between the water net and the suction fan arrange | positioned behind the extension line above the oscillation sorting apparatus above the threshing part of the threshing part, A guide member was provided between the water net and the sieve separator.

The sifter was composed of a rocking member and a rocking drive member, and provided with a curved guide member projecting downward from the side of the rocking member.

Moreover, in the threshing apparatus which consists of a threshing part and a sorting part, the rear side grain board was provided integrally with the oscillation sorting apparatus above the 2nd conveyor above the rear part of the oscillation sorting apparatus.

In the threshing apparatus which consists of a threshing part and a sorting part, the rear side grain board was provided in the rear side downward between the left and right side plates of the rocking | fluctuation sorting apparatus as the inclination upper side rear of the 2nd fan above a 2nd conveyor.

A suction fan is disposed at the rear of the threshing apparatus in order to discharge the discharge straw or dust generated in the threshing unit or the sorting unit from the gas, and as the lower side of the suction fan, the suction wind of the suction fan above the second conveyor does not act. The rear grain board was prepared.

In a fan casing of a suction fan disposed at the rear of the threshing apparatus for discharging dust or dust discharged from the threshing unit or the sorting unit, a suction hole is provided on the upper surface of the fan casing, and the upper part is opened around the suction hole. A guide body was prepared.

In the fan casing of the suction fan disposed at the rear of the threshing apparatus in order to discharge the straw or dust generated from the threshing unit or the sorting unit from the gas, the lower guide plate of the fan casing is provided with the front guide plate, the back guide plate, the front guide plate and the after It consists of a hinge that connects the guide plate, the rear guide plate is installed to extend down the rear side of the inclined, this rear guide plate is to be able to rotate forward and upward with the hinge point.

<Effects of the Invention>

As an effect of this invention, the effect as described below can be exhibited.

The threshing part by providing a sieving device between the water net and the suction fan arrange | positioned behind the extension line and above the oscillation screening apparatus of the threshing part of the threshing part, and providing a guide member between the water net and the sieving device. It can be sent to a sieve without clogging grain or straw flowing down from it. Therefore, the grains and straws are sorted by the sifting device, and the straws do not fall on the gum body of the swinging sorting device. Therefore, even when a large amount of grains are conveyed to the gum body at once or when the grains are wet materials. The sorting process can be sufficiently performed.

Since the sifting device is composed of a rocking body and a rocking drive member, and a curved guide member protruding downward from the side of the rocking body is provided, the guide member is removed when the rocking sorting device housed in the frame is removed from the frame. It abuts and slides the sword. As a result, the sifting device is rotated upwards so that it does not interfere, and thus maintainability is improved.

Since the rear side grained plate is provided integrally with the swinging separator above the second conveyor, the rear side grained plate can be assembled to the main body together with the swinging separator and swinged together with the swinging separator so that the wind direction of the sorting wind is also deflected to separate the balloons. You can broaden your range.

In addition, a rear grain plate is provided at the rear lower portion between the left and right side plates of the swing screening device as the inclined upper rear of the second fan above the second conveyor. Balloons can be blown to the processing object falling from the space, and the space below the rear side grain plate generates wind toward the second conveyor, which is relatively small, such as diameter-adhering grains and water-cutting. Grain with a low specific gravity can be induced to the second conveyor smoothly, so that the loss can be reduced.

Since the rear side grain plate was provided in the position below the suction fan where the suction wind of the suction fan does not act above the second conveyor, the separation from the second fan is separate from the sorting wind flowing from the tuyere 32 to the suction fan. The posterior grain plate is guided by the volatility, and the sorting wind of the second fan can be guided in a desired direction without being influenced by the sorting wind of the suction fan, thereby improving the sorting performance of the secondary material.

Since the suction hole was provided in the upper surface of the fan casing, and the guide body which opened upwardly around the suction hole was provided, the dust which accumulates in the outer vicinity of the fan casing of a suction fan can be removed. By the suction fan, not only the large straw conveyed to the back of the black bull body but also the fine dust generated in the processing chamber can be discharged. As a result, it is possible to reduce the number of times of maintenance on the upper surface of the fan casing without requiring new power.

The lower guide plate of the fan casing consists of a front guide plate, a rear guide plate, and a hinge connecting the front guide plate and the rear guide plate, and installs the rear guide plate extending downward and down the slope. Since the lower guide plate is not obstructed when the oscillation screening device is separated, the detachment of the oscillation screening device from the gas main body can be facilitated, and the maintainability of the oscillation screening device can be improved. In addition, even if you forget to lower the back guide plate, the wind pressure of the suction fan automatically returns to the original position so that it does not interfere with the discharge of the straw or dust.

1 is an overall left side view of a combine according to an embodiment of the present invention.

FIG. 2 is an overall plan view of the combine of FIG. 1. FIG.

3 is an overall right side view of the combine of FIG.

4 is a schematic diagram of the left side of the threshing unit and the sorting unit;

5 is a schematic diagram showing a power transmission path from an engine to an exhaust auger.

6 is a front view of the grain tank bottom;

7 is a plan view of the grain tank bottom;

8 is a partial perspective view of a grain tank.

9 is a front view of another type of grain tank.

10 is an enlarged view of a portion of FIG. 9;

11 is a right side cross-sectional view of the grain tank.

12 is a rear side view of the threshing device, showing an arrangement example of the sieving device;

13 is a rear side view of the threshing device, showing an arrangement example of the sifting device;

14 is a plan view of a threshing apparatus showing an arrangement example of a sieving device;

15 is a side view showing the structure of a sieving device;

The perspective view which shows the structure of a sieving device.

The schematic diagram of the right side of the oscillation screening apparatus.

18 is a perspective view of a rocking shake sorting apparatus.

Fig. 19 is a left side view showing the state of the sieving device at the time of desorption of the oscillation screening apparatus.

20 is a rear left side view of the sorting unit;

21 is an exploded view of a seal member.

22 is a perspective view of a seal member.

23 is a left side cross-sectional view of the suction fan.

24 is a rear view of the suction fan.

25 is a perspective view of a suction guide body;

26 is a perspective view of the lower guide plate;

27 is a side view of the grain stem conveying device;

Fig. 28 is a side view showing the narrowing space;

29 is a rear enlarged view of the narrowing solution;

30 is a side view illustrating a configuration of a feed chain frame.

Fig. 31 is a plan view showing the fixing mechanism of the feed chain frame.

32 is a side view illustrating the configuration of a feed chain frame rear portion;

33 is a partial partial cross sectional view of the fixing device when opened;

FIG. 34 is a cross-sectional view taken along the line A-A in FIG. 33; FIG.

35 is a side view illustrating a free guide;

36 is a front view illustrating a free guide;

37 is a side view of the connection guide;

FIG. 38 shows the connection guide seen from the direction of arrow B in FIG. 37; FIG.

FIG. 39 shows the connection guide seen from the direction of arrow C in FIG. 37; FIG.

The perspective view which shows the structure of a barrel supply start end part.

The perspective view which shows the structure of the inside of a feeding chamber in the state which removed the barrel.

42 is an enlarged perspective view illustrating the structure of a lead plate.

43 is a front view illustrating a dispatch room;

44 is a developed view showing the water net.

45 is a front view illustrating the barrel downward;

The front view which shows the position adjusting part of a water net.

Fig. 47 is a partial front sectional view of the front mantle;

The top view which shows the combine left rear part.

49 is a side view illustrating the discharge straw conveying apparatus.

The perspective view which shows the discharge straw conveying apparatus front process side.

The top view which shows the discharge straw conveying apparatus front process side.

FIG. 52 is a plan view of the link mechanism seen in the direction of an arrow E in FIG. 49; FIG.

FIG. 53 is a side view showing the link mechanism seen in the direction of an arrow D in FIG. 49; FIG.

The side view which shows the discharge straw conveyance chain rear end part.

55 is a plan view showing the rear end of the discharge straw conveying chain;

56 is a cross sectional view of a chain guide;

Fig. 57 is a left side view of the combine rear showing the discharge straw safety shutters;

58 is a plan view of the discharge straw safety shutter.

The schematic diagram which shows the flow of the sorting wind of a sorting part.

<Explanation of symbols for main parts of drawing>

12: threshing part

20: threshing part

22: sudden

23: water

30: sorting unit

31: swinging screening device

31L, 31R: Side plate

32: airball

34: swing drive mechanism

38: sword

40: suction fan

52: exit partition plate

120: sifting device

122: sieve plate

First, the whole structure of the combine which concerns on this invention is demonstrated using FIGS. On the other hand, the gas advancing direction is in the front and the left side in FIG. 1 is in the front.

On the crawler type traveling apparatus 1, the base frame 2 is mounted, and the raising and harvesting part 3 is arrange | positioned so that the front-end of this base frame 2 can raise and lower. This producing and harvesting portion 3 protrudes the grass herb by protruding the herbicidal plate 4 at the front end, and the rearing case 5 is placed upright to protrude from the producing case 5. The grain stem is produced by the rotation of the tine 6, and the root blade is made to be mowed by the cutting blade 7 arrange | positioned at the back of the said dividing board 4.

The harvested grain stem is conveyed to the rear part by the upper conveyance apparatus, the lower conveyance apparatus, and the longitudinal conveyance apparatus 8, and the base side is moved to the feed chain 9 of the grain stem conveyance apparatus 170 from the upper end of this longitudinal conveyance apparatus 8. The grain stem is conveyed to the threshing apparatus which consists of a threshing part 20 and the sorting part 30 through the barrel supply start end part 280. And the discharge straw conveying apparatus 320 provided with the discharge straw conveying chain 10 is arrange | positioned at the rear end of this feed chain 9, and the discharge straw cutter apparatus 321 below this discharge straw conveying chain 10 rear part. The discharge straw processing part 11 which consists of a diffusion conveyor etc. is formed, and it cut | disconnects and discharge | disconnects the discharge straw, and is made to discharge | emit evenly to a package while spreading | dispersing, or without cutting | disconnection.

Moreover, the grain tank 13 which stores the sizing after sorting is arrange | positioned at the said threshing part 20 side part, and the cab 14 which covers a control part is arrange | positioned in the whole grain tank 13 front part. That is, the cab 14 is disposed in front of the traveling direction gas right side. On the other hand, at the rear of the grain tank 13, a bell auger 15a of a discharge auger 15 is placed upright, and a discharge auger 15 and a grain tank 13 are formed around this bell auger 15a. By allowing the side to rotate sideways and rotating the grain tank 13 sideways, maintenance of the drive system and the hydraulic system arranged inside the main body is facilitated.

And the discharge conveyor 16 is arrange | positioned in the front-back direction at the bottom part of this grain tank 13, The rear part of this discharge conveyor 16 communicates with the lower part of the longitudinal auger 15a, and this discharge | emission Power is transmitted to the discharge auger 15 from the rear of the conveyor 16 so that the grains in the grain tank 13 can be discharged from the tip of the discharge auger 15 to a truck or the like. On the other hand, below the threshing part 20, the sorting part 30 is arrange | positioned, the grain is sorted out from the grain, the straw, etc. which flow down from the threshing part 20 (henceforth a "processed material"), and the grain is made into the said grain tank. It is made to convey to (13), to discharge the straw, etc. to the outside, or to convey it to the said grain tank 13.

Here, the driving force transmission path from the engine 60 to the grain tank 13 and the discharge auger 15 is demonstrated using FIG.

The front output shaft 60a of the engine 60 is connected to the input shaft of the drive mission case 61 for driving the crawler type traveling device 1, and transmits a driving force to the crawler type traveling device 1. On the other hand, the rear output shaft 60b, the pulley 62 for transmitting the driving force to the threshing unit 20 or the sorting unit 30, and the pulley for transmitting the driving force to the grain tank 13 and the discharge auger 15. 63 is inserted. The pulley 62 is connected to the input pulley 109 fixed to the input shaft 108a protruding from the counter case 108 via the V belt 110, and the engine is connected to the input shaft 108a of the counter case 108. (60) A part of the driving force is transmitted. In this way, the power from the engine 60 is transmitted to each processing system via the counter case 108, and the barrel 22, the tuyere 32, the 1st conveyor 41, the feed chain 9, and the example are produced. The conveying apparatus, the cutting blade 7, etc. of the mounting part 3 are made driveable. The counter case 108 is capable of distributing an appropriate speed to each processing system. As shown in FIG. 2, the counter case 108 is disposed on the left side of the engine 60 and is disposed in front of the threshing unit 20.

In addition, the bottom front face of the grain tank 13 is located substantially behind the engine 60, and the drive case 64 which becomes a drive part is arrange | positioned at the bottom front wall surface 13a of this grain tank 13; It is. The drive case input shaft 65 protrudes from the drive case 64 toward the front of the body, and a pulley 66 is inserted into the front end of the drive case input shaft 65.

The V-belt 67 is wound around the pulley 63 inserted into the rear end of the rear output shaft 60b and the pulley 66 inserted into the front of the drive case input shaft 65 to drive the engine 60. A part of is transmitted to the input shaft 65 of the drive case 64.

Moreover, the auger clutch 68 which serves as the tension pulley of the V-belt 67 is provided between the pulley 63 and the pulley 66, and it is comprised so that a transmission force can be transmitted and interrupted downstream from the drive case 64. .

The cogwheels 69a and 69b meshing with each other are accommodated in the drive case 64, and the cogwheels 69a are provided at the rear end of the input shaft 65 axially supported by the drive case 64. The outer gear is fixed to the outside, and the sprocket 69b is fixed to the outer side of the conveyor drive shaft 70 which is a rotating shaft inserted into the front end of the discharge conveyor 16.

The bevel gear 71 is inserted in the rear end of the discharge conveyor 16, and engages with the bevel gear 73 inserted in the lower end of the screw type conveyance conveyor 72 in the longitudinal auger 15a. On the other hand, the bevel gear 74 is inserted and installed in the upper end of the longitudinal conveyance conveyor 72, the bevel gear 75 which meshes with this bevel gear 74, the intermediate case 76 which installs a chain and a sprocket, and a bevel continuously. The screw type horizontal conveyance conveyor 79 in the grain discharge auger 15 is rotationally driven via the gears 77 and 78.

By such a configuration, the grains stored in the grain tank 13 are conveyed backward by the discharge conveyor 16 and are distal to the grain discharge auger 15 via a longitudinal auger 15a located behind the grain tank 13. Is forced out of the

Subsequently, the vibration mechanism of the bottom portion of the grain tank 13 will be described with reference to FIGS. 6 to 8. 7 omits the discharge conveyor 16 and the conveyor cover 92 mentioned later for convenience.

The drive case 64 is arrange | positioned in the lower part of the front of the grain tank 13, and the driven plate 81 and the flat gear 69a, 69b mentioned above are provided in the drive case 64 inside. The drive support shaft 82 etc. which are the rotation center axes of this driven board 81 are provided. One end of the driven plate 81 is fixed to the driving support shaft 82, and an elliptical cam hole 81a is drilled on the other end side thereof. On the other hand, at the front end of the conveyor drive shaft (eccentric shaft) 70, which is the rotation shaft of the discharge conveyor 16, the flat gear 69b and the disk-shaped eccentric cam 83 are mutually parallel to the outside. Insertion is fixed. At this time, the center axis of the eccentric cam 83 and the rotation axis of the conveyor drive shaft 70 do not coincide (that is, the eccentric cam 83 is eccentrically attached to the rotation axis of the conveyor drive shaft 70). In addition, the eccentric cam 83 is inserted into the cam hole 81a drilled in the driven plate 81.

On the other hand, the drive pipe 84 is constructed transversely in the front-rear direction of the grain tank 13, and the front end is inserted and fixed to the drive support shaft 82, and the rear end is the wall surface after the bottom of the grain tank 13. It is inserted and installed in the holding shaft 85a rotatably supported by the support box 85 fixed to 13b. One end of the swinging arms 86a and 86b is fixed to the front end and the rear end of the drive pipe 84, respectively. As shown in FIG. 6, these rocking arms 86a and 86b are formed in a "へ" shape when viewed from the side, and a through shaft 87 is hypothesized between the other ends. However, the drive pipe 84, the drive support shaft 82, and the extraction shaft 85a can be configured integrally.

The movable plate 88 is held in the through shaft 87. The movable plate 88 is composed of a plurality of four grain plates 89, 89, 89, 89 divided into four in the front-rear direction in this embodiment, and each grain plate 89 has elasticity. It is formed by the synthetic resin member which has, and it prevents the damage of a grain by the impact at the time of fall, the friction when slipping, etc. A boss portion 89a is formed at the lower end of each grain plate 89. A through shaft 87 penetrates through the boss portion 89a so that the grain plate 89 rotates the through shaft 87. It is rotatably supported. In this way, the grained plates 89, 89, 89, and 89 are supported by the through shaft 87 so that there are no gaps between the swinging arms 86a and 86b, so that the movable plate 88 of a substantially rectangular shape is long before and after. ) Is configured. In addition, the through shaft 87 penetrating the swinging arms 86a and 86b is not pulled out by inserting the pin 90 into the holes provided at the front and rear ends.

In this way, the movable plate 88 connected to the swinging arms 86a and 86b has an inclined angle among the bottoms 13c, 13d, and 13e which form a substantially valley bottom when viewed from the front of the grain tank 13. It is mounted on the bottom face 13e which is small and has the largest area. The lower part of this bottom face 13e is formed in staircase shape, and the boss | hub part of the said grain plate 89 is located in the upper space of the side of the discharge conveyor 16 in the step part 13f recessed downward from the lower part. 89a) is disposed so that the boss portion 89a does not interfere when the grain flows down from the movable plate 88 toward the discharge conveyor 16, and does not interfere even when the grain plate 89 is rocked. Doing.

In addition, the pressing plate 91 is attached to the left wall surface 13g of the grain tank 13 so as to be in contact with the upper end of each of the grained plates 89 on the opposite side of the end on which the boss portion 89a is formed. have. The pressing plate 91 bends the plate body into a "へ" shape when viewed from the rear side, fixes one side to the wall surface 13g, and mounts the other on the end in accordance with the surface of the grain plate 89. It is comprised longer than the swing width of the grain board 89. In this manner, the pressing plate 91 presses the movable plate 88 downward so that the movable plate 88 does not float when the movable plate 88 swings, and the upper edge of the movable plate 88 and the grain tank ( The clearance gap between the left wall surface 13g of 13) is reliably closed. Thereby, the grains 89 and 89 of the movable plate 88 flow down toward the discharge conveyor 16 from the grain plate 13 which flows down in the grain tank 13 from the holding plate 91, and the grain board 89 flows. ) And the bottom surface 13e to prevent a grain from being pinched.

In addition, as shown in FIG. 6, an umbrella-shaped conveyor cover 92 is disposed substantially above the discharge conveyor 16 when viewed from the front, and both ends in the longitudinal direction thereof are bottom portions of the grain tank 13. It is fixed to the front wall surface 13a and the bottom rear wall surface 13b. When the grain tank 13 operates the discharge conveyor 16 to discharge the grain, the flow of the grain flowing down the grain tank 13 is divided into left and right when viewed from the front by the conveyor cover 92, and discharged. Since no load of grain is applied to the conveyor 16 directly from above, it is possible to reduce the load of the discharge conveyor 16 and damage of the grain.

By the above configuration, when the driving force is transmitted to the drive case 64, the conveyor drive shaft 70 rotates, the discharge conveyor 16 is driven to rotate, and the eccentric cam 83 also rotates. At this time, the end face of the eccentric cam 83 and the end face of the elliptical cam hole 81a drilled in the driven plate 81 abut, and the driven plate 81 is driven by the drive case 64. Rotate left and right about. The swing arms 86a and 86b projected downwardly from the front and rear ends of the drive pipe 84 inserted into the drive support shaft 82 also swing left and right about the drive support shaft 82. The movable plate 88, which is connected to the 86a, 86b via the through shaft 87, also swings in the inclined direction along the bottom surface 13e having a gentle inclination toward the discharge conveyor 16.

Therefore, even when the grain is a wet material, since the grain flows down the grain tank 13 by the rocking of the movable plate 88, and flows into the discharge conveyor 16, high-speed carrying out of a grain is attained, and also a grain tank It is possible to suppress the total height of the grain tank 13 while making the volume of the bottom surface of (13) gentle and ensuring a volume.

In such a configuration, as described above, the boss portion 89a is formed at the end of the movable plate 88 (the curved plate 89), and it is hypothesized between the swinging arms 86a and 86b on the boss portion 89a. Since the movable plate 88 and the swinging arms 86a and 86b are formed to penetrate through the through shaft 87 to be connected, a connecting member such as a hinge is required to connect the movable plate and the swinging arm as in the related art. The number of parts can be reduced and the weight can be reduced. Moreover, since the fastening part by a bolt etc. is also eliminated, there is no worry that a movable plate may fall out from a swinging arm, and reliability can be improved.

In addition, it is conceivable to smooth the inclination of the inclined surface of the grain tank as a means for increasing the volume of the grain tank. However, if the slope of the inclined surface is gentle, the slope becomes difficult to slip if the grain is wet, and the grain adheres to the inner wall surface of the grain tank, resulting in an increase in the residual amount. Therefore, instead of smoothing the slope of the inclined surface, it is possible to expand the upper portion of the grain tank laterally or forward or backward to increase the volume. For example, the enlarged tank is expanded by expanding the threshing apparatus upward to increase the volume. can do. Here, as shown in FIG. 9, the inclination of the inclined surface 13h is made gentle by arrange | positioning and rocking the upper movable plate 93 on the inclined surface 13h of the bottom part of an upper bulging part (extension tank). Since it becomes possible to flow down into the discharge conveyor 16, without a grain being attached, the volume of the grain tank 13 can be further enlarged.

In this case, as shown in FIG. 9 and FIG. 10, in the configuration in which the lower movable plate 88 is disposed at the bottom of the grain tank 13 as described above, the upper swing arms 94a and 94b and the lower side are provided. The swing arms 86a and 86b are interlocked and connected via a link mechanism. That is, one end of the link 95 is caught in the middle of the swing arms 86a and 86b, and the other end of the link 95 extends to the upper left and protrudes and is disposed on both sides of the lower portion of the upper bulge. It is detected by the middle portion of the 94a and 94b, and the upper swinging arms 94a and 94b and the lower swinging arms 86a and 86b are linked to each other.

Further, the support shaft 96 is horizontally arranged in the front and rear directions of the grain tank 13 below the inclined surface 13h, and one end of the swinging arms 94a and 94b is fixed to the front and rear ends of the support shaft 96. It is installed. These rocking arms 94a and 94b are rotatably supported with the support shaft 96 as the center of rotation.

On the other end side of the swinging arms 94a and 94b, the lower part of the movable plate 93 is estimated through the through shaft 97. The upper movable plate 93 is composed of a plurality of grained plates 98, 98, ... made of a synthetic resin member having elasticity, and the boss portion 98a formed in each grained plate 98 has a through shaft 97. And is formed into a substantially rectangular shape long before and after.

Then, the upper movable plate 93 is mounted on the inclined surface 13h of the extended tank bottom portion, and the upper surface end portion of the curved plate 98 opposite to the end portion on which the boss portion 98a is formed is the pressing plate 99. A). In this way, when the movable plate 93 oscillates, the pressure plate 98 is pressed by the pressing plate 99 so that the grained plate 98 does not float, so that the grain penetrates into the gap between the movable plate 93 and the inclined surface 13h and the movable plate ( 93) does not impede the fluctuations or damage the grain.

In this configuration, when the driving force is transmitted to the drive case 64 and the swinging arms 86a and 86b swing left and right about the driving support shaft 82, the swinging arms 94a and 94b are driven by the link 95. And the through shaft 97 hypothesized between the swing arms 94a and 94b also swings left and right about the support shaft 96. As a result, the grain plate 98 held by the through shaft 97 also swings in the inclined direction along the inclined surface 13h which is inclined downward of the grain tank 13.

Therefore, the grains easily flow due to the swing of the upper movable plate 93 even on the inclined surface 13h other than the bottom surface 13e of the grain tank 13, so that the grains adhere to the inner wall surface even when the grains are wet materials. To reduce the amount of residue. Therefore, the slanted surface 13h can be made a smooth surface without having to make a steep slope, and the volume of the grain tank 13 can be enlarged by that much.

By the way, as mentioned above, the grain tank is not enlarged, but the grain volume is suppressed at the grain tank and the grain-conveyor which injects a grain into this grain tank, without changing the volume, and also a grain is made into a large amount. In order to make the filling rate (%) as large as possible, the grains are introduced from the sidewall surface of the grain tank, and the grains accumulated in the grain tank are first deposited from a position far from the grain inlet in the grain tank. It is preferable that the upper space (part without a grain) of a grain tank at the time of full quantity becomes only near a grain inlet. In this regard, the grain tank is configured to drill a grain inlet on the upper left side of the rear inner wall surface and to first deposit grains fed from the grain grain conveyor from all of the grain tanks and from the right side. Here, a filling rate shows the ratio of the volume volume which the harvest in a grain tank occupies when the space volume in an empty grain tank is made into 100%.

Therefore, the deposition surface of the grain (surface which forms the boundary of a grain tank upper space and the top of a grain) which was thrown in from the grain inlet and disperse | distributed to each place in a grain tank and flows down is a reference horizontal plane (surface perpendicular | vertical to the direction in which gravity acts). ) Is not parallel to each other, and is formed with a predetermined deposition angle (an angle formed by the deposition surface and the reference horizontal plane).

Therefore, in the grain tank, as grain harvesting means, for example, a plurality of grain sensors including electrostatic volume sensors for detecting the presence or absence of grains in the vicinity are arranged, but all grain sensors are vertically placed on the rear inner wall surface of the grain tank as in the prior art. When provided at predetermined intervals in the direction, an error occurs in the amount of storage of the grains and the amount of storage of the actual grains when detected by the grain sensor.

Accordingly, as shown in FIG. 11, in the configuration in which the grain inlet 100 is drilled in the upper left of the rear inner wall surface 13j of the grain tank 13, the grain tank 13 and the grain grain conveyor 44 communicate with each other. The first grain sensor 101, the fourth grain sensor 104, and the fifth grain sensor 105 on the rear inner wall surface from below the grain inlet 100, which is the grain inlet side of the grain tank 13, in the vertical direction. It is provided at predetermined intervals, and the full amount grain sensor 106 is arrange | positioned under the grain inlet 100. Meanwhile, the second grain sensor 102 and the third grain sensor 103 are moved up and down and back and forth to the inner side of the hatch 107 which closes the opening for maintenance arranged on the left side (gas inside) of the grain tank 13. It is provided at predetermined intervals in the direction. The 2nd grain sensor 102 is arrange | positioned in front of this hatch 107, and the 3rd grain sensor 103 is arrange | positioned at the rear side. On the other hand, in the present embodiment, a total of five electrostatic volume sensors are used as the harvest detection means, but the kind, number, attachment positions, etc. of the sensors used as the harvest detection means are not limited to this.

In such a configuration, the grain is detected by the first grain sensor 101 when the deposition surface becomes the deposition surface 111a in FIG. 11 with the increase in the grains dispersed and dispersed in the respective places in the grain tank 13. As the grains in the grain tank 13 increase further, the deposition surface changes in order to the deposition surface 112a, the deposition surface 113a, the deposition surface 114a, and the deposition surface 115a, respectively, respectively, and the second grain sensor 102 is used. ), The grain is detected by the third grain sensor 103, the fourth grain sensor 104, and the fifth grain sensor 105.

Therefore, since the positions of the grain sensors 101, 102, 103, 104, and 105 become accurate positions corresponding to the corresponding deposition surfaces, the grain sensors 101, 102, 103, 104, and 105 have been detected by the respective grain sensors 101, 102, 103, 104, and 105. The amount of storage of the grain in the grain tank 13 and the actual amount of storage in the grain tank 13 substantially coincide, so that the filling rate of the grain can be detected more accurately, and the filling rate can be increased to sufficiently use the volume of the grain tank 13. Moreover, since the 2nd grain sensor 102 and the 3rd grain sensor 103 are arrange | positioned at the inner side surface of the hatch 107, maintenance becomes easy.

Next, the threshing part 20 is demonstrated using FIG.

The barrel 21 formed in the threshing part 20 is provided with the substantially cylindrical barrel 22 hypothetically arrange | positioned by the axis in the front-back direction of a base body, and the teeth 22a, 22a, ...) are planted. And the semi-circular water net 23 is attached to the circumference | surroundings so that the periphery of the lower part of this barrel 22 can be detachably attached. On the other hand, with the feed chain 9, while the base side of the grain stem is restrained, the front end side of the grain stem is inserted below the barrel 22, and the grain stem is conveyed to the rear of the body. At this time, desorption is performed by the rotation of the barrel 22, and grains, straws, etc. fall from the water net 23.

On the inner circumferential surface of the processing chamber cover 21a covering the processing chamber 21, rosin plates 24 are appropriately spaced in the left and right width directions so as to be rotatable around the pivot point in the vertical direction. have. Then, by rotating the rotatable plate 24, it is possible to adjust the time during which the grain stem moves in the feeding chamber 21 in accordance with the variety of grain stem and grain stem state.

Then, a processing chamber 25 is formed from the rear side of the barrel 22 (the grain tank 13 side, the gas traveling direction right in the present embodiment), and in the processing chamber 25 is substantially circumferential. The rosin port processing cylinder 26 formed in the shape of) has been hypothesized and laterally transversely in the front-rear direction from the side of the rear side of the barrel 22 so as to be parallel to the barrel 22. Moreover, the rear (right) side of the barrel case which covers the barrel 22 and forms the barrel 21, and the whole (left) of the process cylinder case which covers the rosin port processing cylinder 26 and forms the process chamber 25 (left). A rosin port 27 is opened at the side surface, and the feeding chamber 21 and the processing chamber 25 communicate with each other. Then, a semicircular processing network 28 is provided around the bottom of the rosin port processing cavity 26. In this way, unprocessed matters, such as a diameter-adhering granule which could not be processed by the barrel 22, are conveyed from the rosin port 27 into the processing chamber 25, are processed, and pass through a hole (mesh) provided in the processing network 28. So that only processed materials are released.

Moreover, the wing body 26a which consists of a plate body long before and behind is provided in the outer peripheral surface of the rear end part of the rosin port process cylinder 26. This wing body 26a rotates integrally with this rosin ball process cylinder 26, and the straw conveyed to the process chamber 25 back by the rosin port process cylinder 26 of this wing body 26a is carried out. It is blown by rotation, discharged below the rotatable hole 26 and guided out of the body by a guide plate (not shown).

Below the said processing network 28, the rosin conveyance conveyor 29 is provided in the front-back direction by the axis | shaft. The rosin conveyance conveyor 29 is a screw-type conveyor, and the processed object which fell by the rosin conveyance conveyance 29 through the hole (mesh) provided in the processing network 28 is a gas front ( That is, it conveys toward the conveyance direction of the rosin port process cylinder 26), and is re-injected into the sorting part 30 from the dust discharge port 29a provided in front of the rosin conveyance conveyor 29. As shown in FIG.

An outlet partition plate 52 is disposed behind the barrel 22, and a sieve splitter 120 is provided on the extension line rear of the barrel receiver 23 as a lower part of the outlet partition plate 52. Is arranged to improve the sorting performance by preventing straw pieces and the like from falling down and mixing with the threshing grain on the gum body.

As shown in FIG. 12, a straw outlet 52a is formed in the outlet partition plate 52, and this outlet partition plate 52 is formed in the shape surrounding the straw outlet 52a, and this straw outlet 52a is provided. The exit partition plate 52 exists also under (). The sifting device 120 is attached to a portion located below the straw discharge port 52a of the outlet partition plate 52.

The sifting device 120 is between the barrel 22 and the suction fan 40 when viewed from the side, and is a side of the rotatable ball processing hole 26, and the swing sorting device 31 having a gum body 38. It is arranged above). Then, the sifting device 120 is disposed directly below the rear end of the barrel 22, and is positioned where the sorting wind exiting the barrel 22 below the barrel has a wider passage.

In addition, as shown in FIG. 13, when the exit partition plate 52 provided in the rear end of the barrel 22 exists only above the straw discharge port 52a, the frame 23a which fixes the water net 23 is shown. The sieve device 120 is mounted on the. However, in this case, since the screening device 120 is located directly below the rear end of the barrel 22, clogging may occur between the barrel 22 and the screening device 120. Therefore, the guide member 121 is provided in the frame 23a which supports the sieving apparatus 120 so that rotation is possible, and the sieving apparatus 120 is not blocked by the guide member 121 by the guide member 121. It is possible to guide.

The guide member 121 has substantially the same left and right width as the body plate 122, is fixedly installed on the upper portion of the support member 123 in an inclined state so that the rear side is lowered, and extends to the immediate vicinity of the rear end of the barrel 22. It protrudes and is comprised so that this guide member 121 and the body plate 122 may be located in substantially straight line.

As shown in Figs. 14, 15 and 16, the sifting device 120 is mounted on the body side and oscillated, and is mounted on the oscillation screening device 31 to oscillate the oscillator. The oscillator is made up of a rocking drive member, which is horizontally horizontal to the U-shaped support member 123 when viewed in a plane fixed to the frame 23a (the outlet partition plate 52 in the case shown in FIG. 4). From the base 124 so as to be able to swing (rotate) by the support shaft 123a provided in the direction, the comb-shaped body plate 122 attached to the upper surface of the base 124, and the base 124 It consists of the arm 125 extended in the back direction.

The arm 125 is fixed to the left end of the base 124 and is disposed in parallel with the body plate 122 at a predetermined interval. In this way, the upper end 125a of the arm 125 is comprised so that it may serve as a body line.

In addition, the guide members 125b and 125c which oppose each other up and down on the left side of the arm 125, and are spaced apart by the diameter of the roller 126a which are mentioned later are protruded to the side. These guide members 125b and 125c are formed by bending in a "へ" shape when viewed from the side, and are configured so that the rear side opens in the vertical direction. And the guide member 125d is fixedly installed below this guide member 125b, 125c. This guide member 125d is bent so as to protrude downward, and is formed in a sled shape, and is disposed so that its lowest position is located below the arm 125.

On the other hand, the swing drive member has a substantially triangular stay 126 and a roller clamped inside the upper side of the stay 126 as viewed from the side of which the lower part is fixed to the left side plate 31L of the swing sorting device 31. 126a, and this roller 126a is slidably fitted between the guide members 125b and 125c of the said arm 125. As shown in FIG.

In such a configuration, the swing sorting device 31 swings so that the roller 126a mounted on the swing sorting device 31 swings up and down substantially, and the body is moved through the arm 125 by receiving the swing of the roller 126a. The base 124 of the name device 120 oscillates, that is, the sieve device 120 oscillates. Therefore, straw, such as straw or plucked straw, separated from the workpiece by the shaking of the sifting device 120 is discharged backward from the body plate 122, and the suction fan does not fall on the black body 38 without falling. Aspirated by 40.

And when the sifting apparatus 120 is attached to the frame 23a, it can guide to the sifting apparatus 120 without the process member being obstructed by the said guide member 121. FIG. That is, even if the mounting position of the sieving apparatus 120 is changed according to the shape of the exit partition plate 52, the guide member 121 is provided between the mesh 23 and the sieving apparatus 120, and the water net ( No straw or straw is clogged between 23) and sifting device 120, and the sifting device 120 can be effectively utilized without disturbing the swing of body plate 122. FIG. Therefore, even when a large amount of grains are conveyed to the gum body 38 at a time, or even when the grains are wet materials, the selective treatment can be performed sufficiently.

Subsequently, the selection unit 30 will be described with reference to FIG. 4.

In the sorting section 30, the shaking sorting by the shaking sorting device 31 and the sorting of wind by the tuyere 32 are performed, and classified into the primary, the secondary and the straw.

The oscillation screening apparatus 31 is accommodated in the base frame 33. The front end of the oscillation screening apparatus 31 extends and protrudes below the front end of the barrel 22, and the rear end of the oscillation screening apparatus 31 extends and protrudes below the rear end of the rotatable port treatment cavity 26 so as to protrude. The length before and after is determined. In addition, a swing shaft (not shown) is provided at the lower portion in front of the swing sorting device 31, and a swing driving mechanism 34 is provided at the rear thereof, and the swing sorting device 31 is formed by the swing driving mechanism 34. 33) to swing. On the other hand, the fuel tank 59 (refer FIG. 20) is arrange | positioned below this oscillation drive mechanism 34. As shown in FIG.

The whole swinging plate 31 is provided with the whole swinging plate 35 at the same time, and the rear swinging plate 36 is provided under the rear side of the whole swinging plate 35. The front and rear grain boards 35 and 36 are formed by wave-shaped members, and the processed material (mixture with grains and straws) passing through the water net 23 is formed on the front and rear grain boards 35 and 36. Falls to the back of the body by swinging of the swing sorting device 31. Further, the rear surface of the after grain plate 36 is connected to the mesh-shaped grain body 37, which is a second sorting portion, and is located above the grain body 37 and the after grain plate 36, and the whole grain plate ( At the rear of 35), a sword body 38 as a first sorting unit is mounted. The straw body 39 is arrange | positioned behind the gum body 38, and the rear side grain board 50 is arrange | positioned under this straw body 39. As shown in FIG.

The gum body 38 is composed of a plurality of chaff fins 38a, 38a, ..., and the opening degree of the chaff pins 38a, 38a, ... can be adjusted according to the amount of the processed material. It is supposed to be done. That is, as shown in FIG. 17, the upper and lower ends of the chaff pins 38a, 38a,... Are picked up by the swing sorting device 31, and the bottoms of the chaff pins 38 are provided on the swinging plates 131 provided on the right and left sides of the gum body 38. Moreover, the other end part is attached to the sliding plate 132 provided in the right and left both sides of the gum body 38. As shown in FIG. The swinging plate 131 is rocked integrally with the swinging sorting device 31, and an adjustment lever 133 is attached to the sliding plate 132, so that the swinging plate 131 of the wire 134 connected to the adjustment lever 133 is inclined. This sliding plate 132 slides back and forth by relaxation or traction. The adjustment lever 133 is biased in the direction which makes the inclination | tilt angle of each chaff pin 38a, 38a, ... small (down) by the spring 135 provided on the opposite side to the wire 134. As shown in FIG.

The angle of the chaff pins 38a, 38a, ... is changed by the slide of the sliding plate 132 so that the inclination angle of the chaff pins 38a, 38a, ... is increased (upright). When the opening degree is increased, the amount of leakage of grain is increased, and when the angle of inclination of each chaff pins 38a, 38a, ... is decreased (down), the amount of opening of the gum body 38 is decreased to reduce the amount of leakage of the grain. It is configured to.

In this way, the grains and fine straws pass through the gum body 38 and fall downward, and straws larger than the opening of the gum body 38 are conveyed backwards. At this time, the airflow from the front to the rear of the sorting portion 30 is generated by the tuyere 32 between the gum body 38 and the grain 37, and a part of the fine straw is blown backward and separated from the grain. .

As shown in FIG. 14 and FIG. 17, the adjustment lever 133, the wire 134, and the spring 135 are provided inside the swing sorting device 31. And the spring 135 and the adjuster 136 and outer holder 137 which can adjust the length are arrange | positioned at the left rear part inside the swinging | separation sorting apparatus 31, and the upper side and the side so that discharge dust may not be caught. It is covered with the cover 138 which consists of elastic members, such as a rubber plate. As a result, the length of the spring 135 can be adjusted from the rear of the body, thereby improving the maintainability. In addition, since the spring biasing the adjustment lever of the gum body is conventionally arranged between the rocking screening device and the frame, it is necessary to secure a constant distance between the rocking screening device and the frame to effectively utilize the screening width. In this embodiment, since the spring 135 is arrange | positioned inside the oscillation screening apparatus 31, the left-right width of this oscillation screening apparatus 31 can be made as large with respect to the base frame 33 as possible. Therefore, the sorting width can be effectively used to improve the sorting performance.

By the way, the rocking | pulverization sorting apparatus 31 comprised as mentioned above rotates a rear cover upward, and rotates to the rear side centering on the left and right one side of the discharge straw processing part 11, the threshing part 20 and the sorting part 30 The rear portion of the rear panel) is opened, and the rear cover 140 of the sorting section is separated, and the swing sorting apparatus 31 can be pulled out and detached to the rear so that the maintenance can be performed easily.

As shown in FIG. 18, the guide rail 141 is provided in the base frame 33 which supports the oscillation separation apparatus 31 by the oscillation drive mechanism 34, and the oscillation separation apparatus 31 is guided by the oscillation drive mechanism 34. As shown in FIG. When reciprocating in the front and rear direction, the front and rear swing rollers 142 and 143 provided under the swing sorting device 31 slide on the guide rail 141 so that the swing sorting device 31 smoothly swings back and forth. have.

In addition, in addition to the rocking rollers 142 and 143, the rocking separator 31 includes a detachable roller 144 and 145 between the front end of the rocking separator 31 and the front and rear rocking rollers 142 and 143. In this case, the swing rollers 142 and 143 and the detachable rollers 144 and 145 can be used when the swing sorting device 31 is detached. For example, when the removal rollers 144 and 145 slide on the guide rail 141 to insert the swing sorting device 31 into the base frame 33, the swing sorting device 31 is moved forward. The swinging rollers 142 and 143 slide on the guide rails 141, thereby simplifying the detachable work of the swing sorting device 31.

In such a configuration, when performing the desorption operation of the swing sorting device 31, if the sieve sorting device 120 is disposed above the swing sorting device 31, the sieve sorting device 120 is hindered and maintainability. This may be deteriorated, but as described above, since the guide member 125d is provided on the arm 125 of the sifting device 120, this inconvenience is eliminated. That is, as shown in FIG. 15, since the said guide member 125d curved downward from the arm 125 of the sifting apparatus 120 is protruded downward, and arrange | positions the oscillation screening apparatus 31, When pulling out from (33), as shown in FIG. 19, the guide member 125d abuts and slides on the gum body 38. As shown in FIG. Accordingly, the sifting device 120 is rotated upwards so as not to be hindered, and thus maintainability is improved.

Moreover, as shown in FIG. 20, the sealing member 151, 152 is arrange | positioned between the rocking | fluctuation sorting apparatus 31 and the base frame 33 inserted in the base frame 33 in this way. The seal member 151 is formed of an elastic member such as a rubber plate having a width approximately equal to the front and rear widths of the side plates 31L and 31R of the swing sorting device 31, and the lower end portion is formed at the upper edge of the side plates 31L and 31R. It is fastened and the upper end contacts the base frame 33, and seals the clearance gap between the oscillation screening apparatus 31 and the base frame 33. As shown in FIG.

On the other hand, the seal member 152 is inclined and attached to the side plates 31L and 31R of the oscillation screening apparatus 31 in the vicinity of the second recovery part 47 so as to ascend. As shown in Fig. 21, the seal member 152 is formed in an inverted T shape from an elastic member made of a rubber plate or the like, and has a plurality of holes for inserting the fastening member through the left and right sides in the longitudinal direction. And attaching portions 152a and 152b are formed.

Then, the seal member 152 is bent at the center in the width direction and doublely overlapped, as shown in FIG. 22, and the attachment portions 152aL and 152aR and the attachment portions 152bL and 152bR are shaken and checked again in this state. It is bent in accordance with the installation part of the apparatus 31, and the attachment parts 76aL and 76aR are fastened to the side plates 31L and 31R of the oscillation screening apparatus 31, and the attachment parts 152bL (152bL) of the attachment parts 152bL and 152bR ( 152bR) is fastened to the base frame 33, and the attachment portion 152bR (152bL) is fastened to the seal member 153 provided on the rear surface of the swing sorting device 31. In this way, the apex portion 152c formed by bending the seal member 152 abuts against the base frame 33, thereby sealing the gap between the swing selection device 31 and the base frame 33 and driving the bottom swing thereof. Dust or the like is prevented from leaking by the mechanism 34 or the like.

Thus, since the sealing member 152 is arrange | positioned between the oscillation separation apparatus 31 and the base frame 33, not only an empty space can be used effectively, but also the oscillation screening apparatus 31 and the base frame Interference of (33) can be prevented. In addition, since the seal member 152 is used in an overlapped state, it is possible to improve the sealing property and durability. And even if the apex part 152c of the seal member 152 slides off and wears off with the base frame 33, the sealed state can be maintained and leakage can be prevented until it replaces. .

Moreover, the tuyere 32 is arrange | positioned under all the whole grain board 35 of the said shaking-separation apparatus 31, and below all the rear grain board 36, and the sorting wind is carried out to the gum body 38 and the grain 37. To blow air. A duct is disposed in the inlet port disposed on the side of the air vent 32, and the duct extends to the vicinity of the engine so that the warmed air can be sucked and blown to the sorting unit during the sorting operation. In this way, when the crops moistened by dew, fall, etc. are threshed and fall on the sorting device, it is possible to sort them without hitting the warmed air and attaching them to pins, sidewalls, or the like without clogging. In addition, a second fan 43, which is a negative pressure fan, is provided between the first conveyor 41 and the second conveyor 42 to blow the sorting wind, so that the wind power of the sorting wind by the tuyere 32 is weakened. In the rear part, the sorting performance by wind sorting is not impaired. Then, in the rear upper side of the second fan 43 above the second conveyor 42, the rear side grain plate 50 is placed on the rear side lower portion between the left and right side plates 31L and 31R of the swing sorting device 31 in a charge direction ramp. It is fixed. In other words, the rear side grain plate 50 is integrally installed in the rocking | fever sorting apparatus 31, and this rear side grain plate 50 is a suction fan as the fan case (lower guide plate 166) of the suction fan 40 below. It is arrange | positioned in the part which the suction wind by 40 does not act. That is, the rear grain board 50 is arrange | positioned at the wind path of the sorting wind from the second fan 43.

In this way, the sorting wind from the second fan 43 is guided by the rear side grain plate 50 and passed through the straw body 39 without being affected by the sorting wind flowing from the tuyere 32 to the suction fan 40. It is possible to discharge. At this time, the secondary object falling from the rear end of the gum body 38 or the rear end of the grain body 37 is separated by a balloon by the second fan 43, and the heavy grains, the diameter-attached grains, the unripe grains, etc. are sorted by the rear grain plate 50. The debris, unmatured, and the like are discharged out of the outside by the wind, and the other ones flow down below the rear plate of the sorting device and are collected on the second conveyor 42.

4 and 59, the selective wind discharge ports of the tuyere 32 are provided in two upper parts and the rear part, and form the 1st air path to the 3rd air path. The first air flow path is discharged from the upper portion of the tuyere 32 to the rear end of the whole grain plate 35, and separates the grains falling into the gum body 38 from the rear portion of the whole grain plate 35. 23) to blow the air between the grains received from the grain or sifting apparatus 120 passing through the shipbuilding star (粗 選 別). The second air passage is discharged from the upper portion of the tuyere 32 along the lower portion of the gum body 38 in a substantially horizontal horizontal direction, and the processing material falling from the gum body 38 onto the posterior grain plate 36 or the grain body 37. Along with the balloon distinction, it also plays a role of sending the processed matter dropped on the rear bent plate 36 to the rear by the wind. The third air passage is discharged backward from the rear of the air vent 32 so that the wind power is greatest, and balloon separation of the processing object falling from the grain 37 on the first conveyor 41 is performed. In addition, the first to third air passages all discharge the warm air from the engine to dry the moist material to prevent blockage or retention, and to separate the processing object falling from the sifting device 120 at the end and suction the fan ( It is inhaled by 40) to discharge straw or dust out of the air.

In addition, the discharge wind of the second fan 43 is discharged toward the upper surface of the rear grained plate 50 and falls from the gum body 38, the grain body 36 rear portion, or the straw body 39 to the second conveyor 42. It is to be able to distinguish the processed object. In addition, the lower portion of the rear grain plate 50 is in a negative pressure state and the wind flowing downward on the second conveyor 42 side is generated, so that a slightly light secondary can be smoothly guided to the second conveyor 42 side. Doing. The straw body 39 is configured in an inverted "자" shape when viewed from the side, so that the straw is easily loosened due to swinging, and is separated by the secondary wind 43 guided by the second pan 43. It is possible to discharge the dust and the like mixed with the reducing material, so that even if the flow rate of the grain is increased, the three losses can be reduced by sufficiently sorting.

In this way, near the rear end of the swing sorting device 31, the suction fan 40 is rolled up over the entire width, so that the dust or threshing during the flow of the sorting wind supplied from the tuyere 32 and the second fan 43 Dust generated in the air is sucked by the suction fan 40 and discharged to the outside of the air.

Here, the fan casing 161 and the lower guide plate 166 covering the suction fan 40 will be described with reference to FIGS. 23 to 26.

The suction fan 40 is constituted by a crossflow fan, and the cage vanes 40a are covered by the upper fan casing 161 and the lower lower guide plate 166 to the suction fan 40. It is configured to guide and discharge dust and the like sucked out of the air. In FIG. 23, this suction fan 40 is rotated clockwise as seen from the side to discharge the dust from the front side to the rear side.

In addition, at an arbitrary position on the upper surface of the fan casing 161, in this embodiment, the suction hole 163 is opened over approximately the entire width, and the guide body 164 to cover the suction hole 163. Is fixedly installed. The guide body 164 is bent in a triangular shape when viewed from the side so that the front and the lower side is opened, the lower opening is approximately coincided with the suction hole 163, the front opening is inlet 164a The area of this suction port 164a is made smaller than the open area below.

As shown in FIG. 24 and FIG. 25, the guide body 164 forms an edge around the suction port 164a, opens the bolt holes 164b, 164b,. A bolt or the like is inserted into the hole 164b to attach and fix the fan casing 161.

In this way, when the suction fan 40 is driven to rotate, air flows from the front to the rear to lower the pressure in the fan casing 161 near the suction hole 163, that is, the inside of the guide body 164 becomes negative pressure. The air outside the fan casing 161 passes through the suction hole 163 from the suction port 164a and is sucked into the fan casing 161. At this time, dust or floating dust deposited near the upper surface of the fan casing 161 is also guided from the suction port 164a to the guide body 164 to be sucked into the fan casing 161 and discharged to the outside of the air.

As described above, since the suction hole 163 is provided on the upper surface of the fan casing 161 and the guide body 164 is opened around the suction hole 163, the fan casing 161 of the suction fan 40 is provided. Dust and the like deposited in the outer vicinity of the can be aspirated and removed. By the suction fan 40, not only the large straw conveyed to the back of the gum body 38, but also the fine dust produced in the process chamber 25 can be discharged | emitted. As a result, it is possible to reduce the number of times of maintenance on the upper surface of the fan casing 51 without requiring new power.

In addition, since the discharge straw sent from the threshing part 20, the sorting part 30, etc. may collect, block | block, or stick on the swinging | separation sorting apparatus 31, the dust, such as discharge straw, is removed or adjusted, It is necessary to perform maintenance.

At the time of maintenance, the shake screening device is usually taken out of the frame to perform maintenance on the outside of the body.However, in order to take out the shake screening device, the discharge straw treatment unit at the rear of the body is rotated backwards to open the rear surface, and the swing screening device is opened. To the rear. Therefore, as shown in FIG. 23, the lower guide plate 166 can be rotated upwards so that the lower guide plate 166 may not be disturbed at this time.

That is, as shown in FIG. 23 and FIG. 26, the lower guide plate 166 is comprised by the front guide plate 167 and the rear guide plate 168, and the front guide plate 167 covers the lower part of the vane 40a. The rear end of the front guide plate 167 is extended, and the rear side of the front guide plate 167 is bent in a &quot; <&quot; shape when viewed from the side, and the rear end is extended downward. The rear guide plate 168 is mounted through the hinge 169. The hinge 169 is fixed on the front part of the rear guide plate 168 and the front end of the rear guide plate 168 is brought into contact with the lower surface of the rear side of the front guide plate 167 so as to contact the rear guide plate 168. The rear guide plate 168 is configured to be rotatable upward, but cannot be rotated downward with respect to the front guide plate 167 around the hinge 169, and the rear guide plate 168 is inclined downward on the rear extension of the front guide plate 167. We install extension. On the other hand, the area of the rear guide plate 168 is larger than the area of the rear portion at the bent portion of the rear guide plate 167, the tip of the front guide plate 167 in the state that the rear guide plate 168 is rotated upward. It protrudes more than a bend part.

And when removing the shaking-separation apparatus 31, the shaking-separation apparatus 31 is lifted and rotated and it is made to superimpose on the rear part of the front guide plate 167, and the shaking-separation apparatus 31 is taken out. And even when maintenance is complete | finished and the forgetting | separation apparatus 31 was mounted in the original position, and the forgetting guide plate 168 was forgotten to return to the original position, the wind pressure produced by the suction fan 40 is reduced. In contact with the protruding part of the guide plate 168, the hinge 169 is rotated downward with respect to an axis, and it is set as the structure which returns automatically to an original position.

Thus, the lower guide plate 166 of the fan casing 161 to the front guide plate 167, the rear guide plate 168, and the hinge 169 connecting the front guide plate 167 and the rear guide plate 168. When the rear guide plate 168 is extended and installed downward in the inclined rear side, the rear guide plate 168 can be rotated forward and upward with the hinge 169 as a point. The lower guide plate 166 can be easily detached from the body of the swing screening device 31 without obstruction, and the maintainability of the swing screening device 31 can be improved. In addition, even if you forget to lower the back guide plate 168, since it automatically returns to its original position by the wind pressure of the suction fan 40, it does not interfere with the discharge of the straw or dust.

In addition, as shown in FIG. 4, the 1st conveyor 41 and the 2nd conveyor 42 are rolled in the left-right direction at the front-back intermediate position below the said shaking-separation apparatus 31. As shown in FIG. The positional relationship between the 1st conveyor 41 and the 2nd conveyor 42 is the one in which the 1st conveyor 41 is close to the tuyere 32 (all of the gas frame 33), and the 2nd conveyor 42 is a tuyere. It is a side farther from 32 (the rear part of the gas frame 33).

The right end part of the 1st conveyor 41 is connected with the grain grain conveyor 44 provided so that the longitudinal direction (conveying direction) may become an up-down direction, and the upper end of this grain grain conveyor 44 communicates with the grain tank 13. It is.

A mixture of grains, diameter-adhering grains, immature grains, and fine straws, which are introduced into the sorting unit 30 and laid down on the whole grain plate 35, is deposited on the tuyere 32 in the process of being laid down on the gum body 38. Part of the fine straw is blown backward by the airflow from the front to the rear of the sorting part 30 generated by the rear part. Mixtures such as grains, diameter-bearing grains, immature grains, and fine straws laid down on the gum body 38 are conveyed backward by the rocking of the rocking / separation sorting device 31. At this time, grains, immature grains, diameter-adhering grains, and fine straws fall down from the openings of the gum Buddhist bodies 38, and large straws are conveyed to the rear of the gum Buddhist bodies 38 and discharged to the outside through the straw body 39. .

Grains, immature grains, diameter-adhered grains, and fine straws falling down from the openings of the gum body 38 are laid down on the posterior grain plate 36 and the grains 37. At this time, a part of the fine straw is blown backward and separated by the sorting wind from the tuyere 32.

Among the grains laid down on the grain body 37, immature grains, diameter-attached grains, and fine straws, the grains, immature grains, fine straws, etc. fall downward through the grains 37. At this time, the grain (primary) having a large weight is placed in the first recovery part 46 (the first conveyor 41 is accommodated as the depression of the bottom surface of the sorting part 30 provided at the rear of the grain plate 45). It collect | recovers and is conveyed to the grain tank 13 from the 1st conveyor 41 via the grain grain conveyor 44. FIG.

On the other hand, small unripe grains, small uneven grains, unprocessed grains mixed with water cutting, grains, etc. are blown backward by the sorting wind from the tuyere 32, and the second recovery part 47 (first recovery) As the depression of the bottom surface of the sorting section 30 provided at the rear of the section 46, the second conveyor 42 is collected, and is recovered from the second conveyor 42 via the second reduction conveyor 48. After conveying to the diameter processing cylinder 49 and removing a diameter by this diameter processing cylinder 49, it is re-injected on the whole grain board 35 (or the gum body 38).

Next, the grain stem conveyance apparatus 170 is demonstrated using FIGS. 27-29.

The grain stem conveying apparatus 170 is for conveying, while pinching the one end (base side) of the harvested grain stem by the threshing part 20 mentioned above, and discharges the grain stem harvested by the producing and harvesting part 3, and is a straw conveying apparatus. A feed chain 9 for conveying up to the discharge straw conveying chain 10 of 320, a narrowing chamber 171 for sandwiching the grain stem being disposed above the feed chain 9, and The narrow liquid gap 171 is composed of a plurality of elastic supports 172, 172,..., Etc. which elastically support the main body side.

In this grain stem conveyance apparatus 170, the base part of the grain stem picked up by the producing and harvesting part 3 is pinched by the narrowing space | interval 171 and the feed chain 9 which are opposingly arranged, and the barrel of the barrel 21 It is set as the structure which threshes by 22, and the part which this narrowing space 171 and the feed chain 9 oppose was made into a conveyance path | route. And the discharge straw after being detached from the threshing part 20 is water-contained by the discharge straw conveyance chain 10 of the discharge straw conveying apparatus 320 in the rear end part (downstream end part) of the feed chain 9, and this discharge straw conveyance is carried out. It is conveyed to the discharge straw processing part 11 by the chain 10.

The buccal fluid chamber 171 is a support shaft 174 fixedly installed at the left end of the gas chamber cover 21a by the stays 173 and 173 and the like, and a plurality of elastic members in the support chamber 174. It is elastically supported through support bodies 172, 172,... The narrow liquid gap 171 has a shape in which a pair of plate-like members are arranged in parallel to the left and right along the feed chain 9, and viewed from the end face in the conveying direction by the feed chain 9. It is formed in a U shape.

The support stem 174 is a hollow columnar member, and is formed to be arranged in parallel with the buccal stem 171 in the feeding chamber cover 21a in the front-rear direction. On the side surface of the support rod 174, the elastic supports 172, 172,... Are supported at the predetermined intervals, and the buccal solution stem 171 is disposed below the elastic supports 172, 172,. ) Is elastically supported. The lower part of this elastic support 172 is pinched by the connecting pin 175 in the narrowing space 171, and the upper part of this elastic support 172 extends upward rather than the support stem 174.

As shown in FIG. 29, the elastic support 172 includes a cylinder portion 176, a cylindrical bearing pipe 177 inserted into the cylinder portion 176, and an inside of the bearing pipe 177 in the vertical direction. It consists of a slide rod 178 etc. which slide, The lower end part of this slide rod 178 is provided with the fixing member 179 of the door form when it sees from the front. By this holding body 179, the connecting pin 175 which connects the pinching solution 171 which has a shape in which the plate-shaped member is arrange | positioned in left and right parallel is detected. Moreover, the spring holder 180 is inserted in the cylinder part 176 outside. The spring holder 180 is located at the lower portion of the support section 174, and an elastic body 181 such as a spring is wound on the outer circumferential surface of the slide rod 178 between the spring holder 180 and the holding member 179. The narrowing space 171 is biased downward (feed chain 9 side). That is, the slide bar 178 which is slidably disposed in the bearing pipe 177 in the up-and-down direction is inserted outside the slide bar 178 in the slide bar 178. The elastic body 181 makes it elastic, and the narrowing space 171 is always biased toward the feed chain 9 side, and it is set as the structure which can pinch the grain stem conveyed. The elastic supports 172, 172, ... are arranged in parallel so as to be biased toward the vertical direction at equal intervals with respect to the conveying direction.

As described above, the narrow liquid gap 171 biased downward by the elastic support 172 has a shape in which a pair of plate-like members are arranged in a left-right parallel shape as described above. The liquid stem units 182, 182, ... are connected in series by the connecting pins 175, 175, .... That is, the inter-integrity interunits 182, 182, ... which are connected in series in the grain stem conveyance direction, have a side surface with the inter-integrity units 182, 182, ... whose front and rear ends are located on the upstream side and the downstream side, respectively. It is arrange | positioned so that it may overlap when it sees from this, and this overlapping part is detected by the connection pins 175, 175, .... That is, the front and rear ends of these inter-integrity units 182, 182,... Are provided with mounting holes 182a having a long hole shape in the front-rear direction, and fixed to the lower end of the elastic support 172. Mounting holes into which the connecting pins 175 are inserted are formed in the left and right directions in the holding member 179, and the elastic support 172 is fixed to the buccal cavity 171 by inserting the connecting pins 175 into these mounting holes. It is becoming.

With this structure, an elastic support 172 is disposed at each connection portion of the inter-integrity unit 182, 182,..., And each connection portion is elastic with respect to the slide direction of the slide rod 178 of the elastic support 172. The narrow liquid gap 171 is structured to hold the grain stem while following the thickness etc. of the grain stem conveyed.

By the way, as shown in FIG. 28 and FIG. 29, the water-receiving part to the discharge straw conveyance chain 10 which is the rear end of the narrow-liquid gap unit 182, 182, ... which comprises the narrow-liquid gap 171, ie, conveyance direction end. The inter-concave interbody unit 183 located at the side extends in the conveying direction downstream compared with other inter-contracting inter-units 182, 182, ... in order to sandwich the grain stem in this water-based unit.

This inter-integrity unit 183 is supported at the rear end of the elastic support 172 similarly to the other inter-integrity units 182, 182,... And the other elastic support 172 at the front and rear intermediate portions thereof. , 172, ... are elastically supported by the elastic support 172 'different from the bias direction. That is, even in the middle portion of the inter-integrity unit 183, the pin 184 is inserted into the long hole-shaped mounting hole 183a formed in the inter-integrity unit 183, and is fixedly installed at the lower end of the elastic support 172 ′. The holding member 179 is supported.

The elastic support 172 'disposed at the rear end of the grain stem in the conveying direction, that is, the water body portion from the feed chain 9 to the discharge straw conveying chain 10, is roughly formed by the other elastic supports 172, 172,... It is inclined forward by angle (theta) 1 with respect to the bias direction of a perpendicular direction, and is arrange | positioned so that the biasing force by this elastic support body 172 'may be substantially perpendicular to the conveyance direction of a grain stem.

In this way, the elastic support 172 'which is located at the rear end and supports the intermediate portion of the inter-nap inter-integrity unit 183 is tilted forward, and the inter-integral inter-unit unit 183 on the side of the water body to the discharge straw conveying chain 10 is transferred to the grain stem. Compared to the other elastic support 172 biased in the vertical direction with respect to the grain stem conveyed by the feed chain 9 in a backward upward inclination by biasing substantially perpendicular to the direction, the slide rod of this elastic support 172 '( The slide direction of 178 becomes an adaptive direction in accordance with the moving direction of the inter-nap fluid unit 183, so that a biasing force by the elastic body 181 acts more effectively on the inter-nine solution unit 183. As a result, the elastic movement of the inter-nap fluid unit 183 in the water system from the feed chain 9 to the discharge straw conveying chain 10 is smooth, and the pinching by the inter-nine solution 183 is conveyed. Since the followability to the thickness and the like of the grains to be added can be prevented, it is possible to prevent the grain stems and straw overflowing in this water portion, and the water system from the feed chain 9 to the discharge straw conveying chain 10 becomes smoother. . That is, the conveyance of the discharge straw from the threshing part 20 to the discharge straw processing part 11 becomes smoother.

In this way, the elastic support 172 'is disposed so as to be biased in a substantially vertical direction with respect to the conveying direction by the feed chain 9, so that this elastic support 172 is compared with other elastic supports 172, 172,... The extension stroke length of ′) is long. That is, the length of the elastic stroke of the elastic slide by the elastic body 181 of the slide rod 178 slidably arrange | positioned in the bearing pipe 177 becomes long compared with the other elastic support body 172. FIG. As a result, the moving range of the inter-narrowing unit 183 increases.

That is, since the inter-integrity unit is not connected to the inter-integrity unit 183, when the amount of the grain stem conveyed increases, the action force to the inter-integrity unit 183 also increases, but the elastic support 172 'located at the rear end. Since the expansion and contraction of is long, it can fully receive this and can smoothly convey a grain stem to the discharge straw conveyance chain 10. As shown in FIG.

In this embodiment, the elastic support 172 'positioned at the end is inclined forward with respect to the other elastic support 172 and disposed so as to be biased substantially perpendicular to the conveying direction. You may make it a support body. In addition, although the narrow liquid gap 171 arrange | positioned facing the feed chain 9 was demonstrated in this embodiment, it is applicable also to the other conveying apparatus in a combine, such as the discharge straw conveying chain 10. As shown in FIG.

Subsequently, the configuration of the feed chain 9 and the feed chain frame 190 supporting the same will be described with reference to FIGS. 30, 32, and 33.

As shown in FIG. 30 and FIG. 32, the feed chain 9 is wound and comprised by the some sprocket 191a, 191b, 191c with which the feed chain frame 190 is equipped. And this feed chain 9 has the rotation center P (refer FIG. 33) of a gas up-down direction in the rear end (gas back), and the front fixing device 192 and the rear part in the front part (gas front) and the rear end. The fixing device 193 is provided, respectively, and it is possible to open and close with the feed chain frame 190 toward the left side of the body with the rotation center P as the rotation axis, and the pre-fixing device 192 and the post-fixing device 193. ), The feed chain frame 190 is fixed to the body side. However, the pre-fixing apparatus 192 and the post-fixing apparatus 193 can be interlocked, and the post-fixing apparatus 193 can also be abbreviate | omitted.

The feed chain frame 190 is an upper guide in the feed chain 9 which crosses at the front end of the transverse frame 190a and is horizontally installed in the front and rear directions of the transverse frame 190a and extends toward the rear to form an ascending gradient. Inclined frame 190b, pivot point frame 190c formed by bending the pipe in a U-shape when viewed from the side, fixed to the rear end of the transverse frame 190a, and a reinforcement frame 190d. Seen in a roughly triangular shape.

Then, the front reinforcing plate 194 is fixed to the front end surface of the horizontal frame 190a and the inclined frame 190b by welding or the like. In addition, the rear end of the inclined frame 190b and the front upper part of the reinforcement frame 190d are fixed to the candidate steel plate 195 by welding, respectively. That is, the front end portions of the transverse frame 190a and the inclined frame 190b are connected and fixed by welding via the telescopic plate 194, and the rear ends of the inclined frame 190b and the reinforcement frame 190d are respectively fixed. The front upper part is fixed by welding via the candidate steel plate 195.

In this way, the horizontal frame 190a and the inclined frame 190b constituting the feed chain frame 190, the inclined frame 190b and the reinforcing frame 190d are interposed between the front and rear reinforcement plates 194 and 195. By fixing by reinforcing by welding, the strength of the feed chain frame 190 can be increased as compared with the case of bolt fastening or the like. Accordingly, it is not necessary to increase the size of each frame to eliminate the lack of strength, such as in the case of bolting, it is possible to prevent the weight of the feed chain frame 190 to increase.

Moreover, between the horizontal frame 190a and the inclination frame 190b, the reinforcement members 196a, 196b, 196c comprised from the pipe etc. (three in this embodiment) in the up-down direction are hypothesized in parallel. Each of these reinforcing members 196a, 196b, and 196c has its lower end fixed to the upper surface of the transverse frame 190a and the upper end fixed to the lower surface of the inclined frame 190b by welding or the like, so that the transverse frame 190a and the inclined frame ( 190b) is connected to increase the strength.

As mentioned above, the strength of the whole feed chain frame 190 can be improved by connecting and fixing between frames by welding using a reinforcement board or a reinforcement member. Therefore, the clearance between the front mesh stop 310 which presses the front mesh 291 of the water mesh 23 mentioned later, and the toothed tooth 22a of the barrel 22 can be kept constant, and the skimming in the threshing part 20 is performed. Problems such as residues are solved.

In addition, the pivot point frame 190c is supported by two upper and lower support portions 200 and 200 provided on the support frame 197 formed by bending the pipe in a substantially inverted U shape when viewed from the rear, which is fixed to the base side. It is supported, and the said feed chain frame 190 is comprised by the structure which can rotate side to outer side with respect to a base body. Further, reinforcement plates 199 and 199 are provided and reinforced between the support frame 197 and the rear side wall 198 on the base side.

32 and 33, the support parts 200 and 200 are provided with stays 190e and 190e integrally fixed to the pivot point frame 190c toward the left side and the support frame 197. It consists of the support stays 197a and 197a and the holding pins 201 and 201 which were integrally fixed to the front, and were formed. The front ends of the support stays 197a and 197a and the left end sides of the stays 190e and 190e are arranged to overlap each other in plan view, and the feed chain frames are inserted by inserting the pins 201 and 201 into the overlapping positions, respectively. The 190 is rotatably attached to the support frame 197, that is, to the body.

As shown in FIG. 30, the driven sprockets 191a and 191b are rotatably provided at the front and upper rear ends of the inclined frame 190b, and the driven sprocket 191b is an inclined frame 190b. The side is covered by the guide 202 fixed to the back by a bolt or the like.

Further, the stay 203 is vertically installed downward from the middle portion near the front of the transverse frame 190a, and the support arm 204 is fixed to the stay 203 by bolts or the like and extended downward. At the lower end of the support arm 204, a pipe-like rotary shaft 205 is held by a bearing or the like, and the drive sprocket 191c is fixed on the rotary shaft 205. The drive shaft which protrudes from the base side is inserted in the shaft center part of this rotating shaft 205 when it rotates to the side which closes the feed chain frame 190, and this drive shaft and the rotating shaft 205 cannot be rotated relative by a pod boss insertion or a key. It fits in and can transmit power.

In addition, one end of the rotating arm 206 is held at the front lower portion of the support arm 204, and a tension sprocket 191d is rotatably held at the other end of the rotating arm 206, and this tension sprocket 191d is provided. Is disposed between the drive sprocket 191c and the driven sprocket 191a. One end of the spring 207 is locked to the rotation shaft of the tension sprocket 191d via a locking part such as a stay, and the other end of the spring 207 is locked to one end of the adjuster 208. The other end of the adjuster 208 is attached to the stay 209 which is set up in the middle of the transverse frame 190a so that the length can be adjusted.

As described above, the feed chain 9 is wound around the driven sprockets 191a and 191b and the driving sprocket 191c, and the tension of the feed chain 9 can be adjusted by the tension sprocket 191d, and the driving sprocket ( This feed chain 9 is rotated by the rotation of 191c. The sprockets 191a, 191b, 191c, and 191d and the feed chain 9 are configured to support the feed chain frame 190, and the feed chain frame 190 supports the support frame 197 on the main body side. By rotating relative to the feed chain, the feed chain frame 190 and the feed chain 9 are integrally formed so as to rotate and open and close.

Subsequently, the opening and closing mechanism of the feed chain frame 190 will be described with reference to FIGS. 30, 31, and 32.

As described above, the feed chain frame 190 is capable of opening and closing laterally with respect to the base, using the supporting parts 200 and 200 positioned at the rear end thereof as the pivot points. The front fixing device 192 is provided at the front end of the feed chain frame 190, and the rear fixing device 193 is provided at the rear end thereof, and the feed chain frame 190 is provided by these fixing devices 192 and 193. ) Is fixed to the body side to maintain the closed state.

The pre-fixing device 192 and the post-fixing device 193 are connected by the connecting rod 210, in conjunction with the locking and unlocking of the pre-fixing device 192 in a structure that also locks and releases It is.

As shown in FIG. 31, the pre-fixing device 192 is a pivoting point shaft 211 which is installed on the front of the transverse frame 190a of the feed chain frame 190 and the pivoting point shaft 211. The lever 212 supported so that rotation is possible, and the engaging portion 213 formed by installing a pin or the like standing on the base frame (2). The middle part of the lever 212 is rotatably attached to the rotation point shaft 211, and the left side (gas outside) of the lever 212 is used as the holding part 212a. The recess is formed to form the hook portion 212b, and the hook portion 212b is configured to be fixed by engaging with the engagement portion 213.

Further, a hole portion 212c is formed in the middle portion of the lever 212 (outside the body of the pivot point shaft 211), and one end of the spring 214 is engaged with the hole portion 212c, and the spring 214 is formed. Tartan is held by the locking portion 215 protruding from the feed chain frame 190 toward the left side. That is, the lever 212 is biased to be pulled backward from the hole portion 212c by the spring 214, so that the hook portion 212b of the hole portion 212c, which is located on the side opposite to the pivot point shaft 211, It is biased in the direction which is going to engage with the front engagement part 213, ie, the direction where the pre-fixing apparatus 192 is fixed.

On the other hand, the post-fixing device 193 is composed of a pivot point shaft 216, a hook 217 inserted into the pivot point shaft 216 and an engagement portion 218 fixed to one end of the frame on the base side, It is comprised so that the said hook 217 may be fixed to this engagement part 218 by engaging.

The pivot point shaft 216 has a pipe shape, and a lower end thereof is supported on the rear side of the transverse frame 190a of the feed chain frame 190, and an upper end thereof is fixed to the reinforcement frame 190d on the frame side, respectively. The outer side of the upper and lower support plates is rotatably inserted in the support shafts provided between the upper and lower support plates. A hook 217 is fixed to the upper end of the pivot point shaft 216, and the hook 217 extends in the body inward direction, and an engagement recess is formed in front of the extension mounting portion, and the engaging portion 218 is provided. It is possible to engage with).

And, these pre-fixing device 192 and the post-fixing device 193 is connected and interlocked by the connecting rod 210 which is installed in the front and rear direction substantially parallel to the transverse frame 190a of the feed chain frame 190. It is a mechanism to say. That is, the front end of the connecting rod 210 is pinned to the lever 212 of the pre-fixing device 192 by a pin or the like, and the rear end of the connecting rod 210 is similarly the pivot point shaft ( The connecting rod is fixed to the pivoting plate fixedly installed at the lower end of the 216 by a pin or the like, and the lever 212 of the all-fixing device 192 is rotated in the direction of releasing the fixation about the pivoting point shaft 211. Through the 210, the structure of releasing the high precision of the post-fixing apparatus 193 is comprised.

In addition, as described above, the feed chain frame 190, which can be opened and closed with respect to the body, can be fixed in its open state, and a fixing device 220 for opening to maintain its maximum open state is provided. have.

This opening fixing device 220 will be described with reference to FIGS. 32 to 34.

When opening, the fixing device 220 is located at the rear end of the feed chain frame 190, the pin 221 is installed on the feed chain frame 190 side, and the fixing guide 222 having a rotation point on the gas side. Etc., the pin 221 moves along the slide hole 228 formed in the fixed guide 222 with opening and closing of the feed chain frame 190.

The pin 221 protrudes upward from the stay 223 fixed to the upper surface of the lower horizontal part of the rotation point frame 190c of the feed chain frame 190 by welding etc.

The fixing guide 222 is a substantially rectangular plate-like member in plan view, the right end (gas side end) of which the upper sidewall 219 and the lower sidewall 229 of the left side of the base frame 33 (see FIG. 33) are located. The pins 224 are supported by the joints of the edges 219a and 229a which protrude toward the left side (outside of the gas) from the joint portions of the pins 224, respectively. That is, one end of the fixed guide 222 is formed with a bi-branched support portion 222a so as to have a U-shape when viewed from the front, and the joint portion of the edge portions 219a and 229a is formed by the support portion 222a. Pin 224 penetrates up and down in a state where the pin is sandwiched between up and down, and the pin 224 is welded or bolted to either side of the supporting portion 222a or the joint side of the edge portions 219a and 229a. The fixing guide 222 is supported by the pin 224 as the center of rotation. On the other hand, the left end of the fixing guide 222 is provided with a handle 226 for operating the fixing device 220 at this opening.

In addition, at the center of rotation of the fixed guide 222, a torsion spring 225 for biasing the fixed guide 222 has an upper horizontal portion of the support portion 222a of the fixed guide 222 and the head of the pin 224 ( It is interposed between the pins 224 and 224a.

Both ends of the torsion spring 225 extend in the horizontal direction, respectively, and the front end portions are bent at approximately right angles downward to form the support portions 225a and 225b. And the support part 225a of the base side is inserted and fixed to the junction part of edge part 219a, 229a, and the support part 225b of the opposite side to the base is in contact with the rear side (gas rear side) of the fixing guide 222. . That is, the fixing guide 222 has the pin 224 as the center of rotation, and the direction in which the handle 226 faces the front of the body by the torsion spring 225 (F direction in FIG. 33, left rotation when viewed in plan). Is biased. In addition, the biasing method of the fixing guide 222 is not limited to this embodiment, You may make it the structure using the spring other than the torsion spring 225, or another elastic member.

In addition, the slide hole 228 formed in the fixing guide 222 is formed in a substantially L shape when viewed in a plan view, is a long hole having a width approximately equal to the diameter of the pin 221, and the feed chain frame 190 is In the closed state, the pin 221 is located at the right end, and in the maximum open state of the feed chain frame 190, the pin 221 is located at the left end, that is, the notch portion 228a formed in the slide hole 228. Perforated to In the portion projecting upward from the slide hole 228 of the pin 221, the pin 221 is prevented from falling out of the slide hole 228 and the slide to the slide hole 228 of the pin 221 is smoothly performed. A stopper 227 for insertion is fitted.

In the fixing device 220 having such a configuration, as the feed chain frame 190 is opened with the rotation center P in the closed state, the pin 221 provided on the feed chain frame 190 side slides. It slides along 228 and rotates in the direction (F direction in FIG. 33) which the fixing guide 222 also biases with the slide of this pin 221. As shown in FIG. Then, when the feed chain frame 190 approaches the maximum opening state and the pin 221 reaches the corner portion of the L-shaped slide hole 228 in plan view, the torsion spring of the fixing guide 222 The pin 221 is automatically fitted into the notch 228a of the slide hole 228 by the bias by 225, so that the open state is maintained so as not to rotate to the side in which the feed chain frame 190 is closed. It is.

When the feed chain frame 190 is closed in the fixed open state, the handle 226 is gripped to rotate in the direction opposite to the direction in which the fixing guide 222 is biased (in the R direction in FIG. 33). By doing so, the fixing by the start fixing device 220 can be released, and the feed chain frame 190 can be rotated to the side that is closed.

In this way, by providing the fixing device 220 at the time of opening to maintain the maximum open state of the feed chain frame 190, the feed chain frame 190 is rotated unless the fixing guide 222 is rotated in the release direction. Since it does not close, maintenance of the open state of the feed chain frame 190 becomes more reliably compared with the case where the conventional mounting board etc. are used. As a result, when the feed chain frame 190 is opened to perform maintenance or repair, the feed chain frame 190 does not close unexpectedly and safety can be improved. In addition, since the handle 226 is provided to protrude outward, the handle 226 cannot be operated unless it is retracted to the outside, so that the body is unintentionally released between the feed chain 9 and the body by releasing the fixing device 220. Nothing gets stuck.

On the other hand, the biasing direction of the fixing guide 222 may be in the opposite direction to this embodiment, and the shape of the slide hole 228 formed in the fixing guide 222 is not limited to this embodiment, but is hooked. Alternatively, by providing a plurality of notches 228a, a configuration in which the opening degree of the feed chain frame 190 can be maintained step by step is also possible.

By the way, as shown in FIG. 32, in order to drive each of the suction fan 40, the 1st conveyor 41, the 2nd conveyor 42, and the 2nd fan 43 which were mentioned above, the base frame 33 Pulleys 40a, 41a, 42a, 43a are disposed on respective rotational axes, outside the upper sidewall 219 and the lower sidewall 229 on the left side of the bottom side, i.e., on the left side of the body of the base frame 33, The belt 231 is wound around 40a, 41a, 42a, 43a, and the pulley 43a is arrange | positioned so that abutting from the outer side (back surface) of this belt 231. Tension pulleys 232 and 232 for maintaining the tension of the belt 231 or regulating the trajectory of the belt 231 are similarly provided at two positions above the pulley 42a on the left side of the base of the base frame 33. And abuts against the outside of the belt 231.

On the axis of rotation of the pulley 43a of the second fan 43, the tension arm 233 having a 'へ' shape when viewed from the side is oscillated so as not to be affected by the rotation of the pulley 43a about this axis of rotation. The tension pulley 234 is rotatably supported at one end (front end) of the tension arm 233, and the tension pulley 234 is disposed to abut from the inside of the belt 231. On the other hand, at the other end (rear end) of the tension arm 233, one end of a spring 235 for biasing the tension arm 233 in the direction in which the tension pulley 234 presses the belt 231 from the inside is provided. It is held. Then, the other end of the spring 235 is locked to one end of the adjuster 236 installed in the stay 232a, which is installed between the tension pulleys 232 and 232, and the belt by the tension pulley 234. It is possible to adjust the tension of 231.

Moreover, the pulley 42b is fixedly installed on the rotating shaft of the pulley 42a of the 2nd conveyor 42, The pulley 34a for driving the oscillation drive mechanism 34 is arrange | positioned at the back, These pulleys ( The belt 237 is wound around 34a and 42b. Then, the tension pulley 239 pivotably rotatable on one end of the tension arm 238 provided on the lower side wall 229 on the base side is disposed to abut against the lower side of the belt 237. One end of the spring 241 is locked to the middle portion of the tension arm 238, and the other end of the spring 241 is installed on the stay 242 protruding from the lower side wall 229. ), It is possible to adjust the tension of the belt 237 by the tension pulley 239.

In this configuration, since the pulley 40a of the suction fan 40 is provided on the gas side, it is not necessary to remove the belt 231 when opening the feed chain frame 190 as described above, so that the operation during maintenance Improve the sex. In addition, by adding the second fan 43 installed in a large combine or the like as in the present embodiment, a single drive system can be obtained by providing a plurality of tension pulleys even when the driving position by the belt 237 increases. . Further, by providing the pulley 42b for driving the swing drive mechanism 34 coaxially with the pulley 42a of the second conveyor 42, a pulley for driving the swing drive mechanism 34 can be separately provided. Since the pulley 42a is arranged to abut on the belt 231 from the inside, the pulley 42a and the belt 231 are compared with the case where the pulley 42a is abutted from the outside (back side) of the belt 231. ), The contact part is increased, so that the driving force can be improved and stable belt rotation can be obtained.

Next, the free guide (interval press assistance guide) 250 provided above the conveyance upstream of the said feed chain 9 is demonstrated using FIG. 35 and FIG.

The free guide 250 includes a grain stem pressing bar 251, a support frame 252, connecting rods 253 and 254, a spring 255, and the like. In the traveling work position (described later), the conveyance upstream side and the grain stem pressing rod 251 of the feed chain 9 are arranged to overlap each other when viewed from the side. That is, the grain stem pressing bar 251 is arrange | positioned so that the conveyance upstream of the feed chain 9 may be followed.

The grain stem pressing rod 251 is formed in a sled shape when viewed from the side, and its front end portion is bent upwards to form a bent portion. The curved portion guides the grain stem between the grain stem pressing rod 251 and the feed chain 9. To feed the grain stem. The grain stem pusher 251 is supported by the support frame 252 and the connecting rods 253 and 254 arrange | positioned above it.

The support frame 252 is rotatably supported by the bracket of the tip end of the support rod 174 that supports the narrowing solution 171. That is, this support frame 252 is provided with the pivot axis 256 in the rear part and the support shaft 174, and is rotatable about this pivot axis 256. As shown in FIG. The support frame 252 is formed in substantially "co" shape in cross section, and the open part of this "co" shape is arranged downward.

In addition, an insertion hole of the connecting rod 254 is drilled in the upper surface of the support frame 252 (a portion of which is not open in the shape of a “co”), and an upper end of the connecting rod 254 is inserted into the insertion hole. The upper end of 254 protrudes from the upper surface of the support frame 252. The connecting rod 254 is movable in the longitudinal direction with respect to the support frame 252. Moreover, the spring 255 is inserted in the upper part of the connecting rod 254, and the lower end side of this spring 255 is being fixed to the intermediate part of the connecting rod 254. Then, when the connecting rod 254 moves upward and the protruding portion from the upper surface of the support frame 252 is long, the biasing force of the spring 255 acts to shorten this protruding portion. The portion where the spring 255 and the spring 255 of the connecting rod 254 are inserted outside is covered by the support frame 252.

In addition, the connecting rod 253 is rotatably mounted to the side of the support frame 252. For this reason, in the free guide 250, the grain stem pressing bar 251 is made to rock with respect to the support frame 252. As shown in FIG. At this time, the spring 255 is stretched to change the protruding length from the upper surface of the support frame 252 of the connecting rod 254. The grain stem pusher 251 oscillates according to the quantity of the grain stem of the free guide 250 and the feed chain 9, ie, the quantity of grain grain supplied to the conveyance upstream of the feed chain 9.

The free guide 250 comprised in this way is rotatable centering around the said rotation support axis 256 in the conveyance upstream of the feed chain 9, and is the traveling work position (acting position) shown by the solid line of FIG. A) and the supply-and-demand working position (release position) (b) shown by the dashed-dotted line can be switched by manual operation. The free guide 250 is shifted to the traveling work position when rotated counterclockwise (FIG. 35) about the pivot axis 256, and the supply and demand work position when rotated clockwise (FIG. 35). Is switched to.

A spring 257 is mounted between the pin 258 inserted into the support frame 252 and the pin 259 attached to the bracket of the distal end of the support stem 174 for supporting the buccal cavity 171. That is, one end side of the spring 257 is connected to the support frame 252 through the pin 258, and the other end side is connected to the support section 174 through the pin 259. The spring 257 rotates about the pin 259 together with the rotation of the free guide 250.

At this time, the bias direction of the spring 257 is switched on the boundary of the straight extension line (X-X line in FIG. 35) connecting the pin 259 and the pivot axis 256. When the pin 258 is below the X-X ray, the biasing force which tries to hold this free guide 250 to the traveling working position (a) acts on the free guide 250. As shown in FIG. On the other hand, when the pin 258 is above the X-X ray, the biasing force which tries to hold this free guide 250 in the supply and demand working position (b) acts on the free guide 250.

As described above, with the rotation of the free guide 250, the bias direction of the spring 257 is switched to two stages. It has a so-called point skip configuration. Thereby, by the biasing force of the spring 257, on the one hand, the free guide 250 is reliably maintained at the traveling work position (a), and on the other hand, it is reliably maintained at the supply-demand working position (b). When the free guide 250 is maintained at the traveling work position A, the upper side of the feed chain 9 conveyance upstream is covered by the free guide 250 so that the grain stem pressing rod 251 is conveyed upstream of the feed chain 9. It becomes the state along the side. The traveling work position (a) supplies the grain stems harvested by the harvesting section to the feed chain 9 while traveling, and threshes.

On the other hand, when the pre-guide 250 is rotated upward and maintained at the supply / demand working position (b), the pre-guide 250 is accommodated above the feed chain 9 so that the upper side of the feed chain 9 conveyance upstream is Open. The supply-demand working position (b) is switched when supplying the grain stems previously harvested to the feed chain 9 by hand, and threshing.

Switching of the travel work position (a) and the supplied work position (b) of the free guide 250 is performed by an operator located on the feed chain 9 side of the combine (in this embodiment, right side of the body). In the present embodiment, the switching of the free guide 250 can also be performed by the driver in the cab 14 (control unit). In this case, the driver switches the free guide 250 by operating the operation lever 261 (operation tool) provided in the vicinity of the cab 14 (control unit).

Here, switching operation (rotation operation) of the free guide 250 by the operation lever 261 will be described.

The operation lever 261 is disposed in the range of the driver's hand near the cab 14 and in the present embodiment, behind the cab 14. Specifically, it is located at the rear left of the cab 14 and at the right front of the air compartment cover 21a, that is, at the center of the gas left and right. Moreover, the upper end part of the operation lever 261 protrudes from the supply chamber cover 21a (refer FIG. 1). On the other hand, the arrangement position of the operation lever 261 may be in the cab 14 and is not limited to the above-described position as long as it is within the reach of the driver 14.

The lower end of the operating lever 261 is fixedly connected to one end of the connecting rod 262, the other end of the connecting rod 262 is rotatably connected to one end of the operating rod 263 by a pin, and the operating rod 263. The other end of) is rotatably connected by the support frame 252 and the pin 264 of the free guide 250.

The connecting rod 262 is rotatably supported by the feeding chamber cover 21a, and both ends of the connecting rod 262 protrude from the upper side of the feeding chamber cover 21a. That is, the connecting rod 262 penetrates the upper part of the processing chamber cover 21a in the left-right direction. And the part which protruded toward the free guide 250 side is bent downward, and is formed.

In this manner, the free guide 250 is connected to the operation lever 261 via the link mechanism, specifically, via the connection rod 262 and the operation rod 263. As a result, even when the hand does not touch the free guide 250 from the cab 14, the switching operation of the free guide 250 can be performed by the operation of the operation lever 261 by the driver. The position is maintained by (257). In addition, the operation lever 261 or the link mechanism may be connected to an actuator such as a motor or a cylinder, and the actuator may be connected to an operation member such as a switch to switch to a button operation or the like.

If the operation lever 261 is in the upright position shown by the solid line of FIG. 35, the free guide 250 is switched to the traveling work position A, and is operated in the hardness position shown by the dashed-dotted line of FIG. If the lever 261 exists, it is switched to the supply-demand working position (b).

When the operation lever 261 is longitudinally operated forward from the upright position by the driver of the cab 14, the connecting rod 262 rotates in the counterclockwise direction (FIG. 35) and the operation rod 263 faces backward. Move. Thereby, the free guide 250 rotates clockwise (refer FIG. 35) centering around the rotation axis | shaft 256, and is switched from the traveling work position (a) to the supply-demand working position (b).

On the other hand, when the operation lever 261 is operated backward in the longitudinal position, the connecting rod 262 rotates in the clockwise direction (see FIG. 35), and the operation rod 263 moves forward. As a result, the free guide 250 rotates about the pivot axis 256 in the counterclockwise direction (see FIG. 35), and is switched from the supply and demand work position (b) to the travel work position (a).

Thus, the operation lever 261 is provided in the vicinity of the cab 14, and the operation of the free guide 250 is performed by the operation of the operation lever 261, and the travel work position (a) and the supply and demand work position ( B) I am switching. Thereby, the rotation operation of the free guide 250 can also be easily performed by the driver in the cab 14. For example, even if the sub-workers located on the feed chain 9 side cannot move both hands freely, for example, by holding the harvested grain stem in both hands, the driver can move the pre-guide 250 to the supply / receiving work position (I ) Can be supplied to the supply and demand work. In addition, even after the subsidiary work ends, the driver can operate the operation lever 261 to return to the original even if the sub operator forgets the operation of returning the free guide 250 to the original. As a result, the operability and workability of the combine 1 can be improved. On the other hand, the pre-guide 250 may be rotated by the sub-worker directly to switch to the travel work position (a) and the supply and demand work position (b). In the present embodiment, the operation lever 261 and the free guide 250 are linked to each other by a link mechanism. However, the operation lever 261 and the free guide 250 may be linked to each other by a wire, a spring, or the like.

Then, the connection guide 271 provided above the conveyance upstream of the feed chain 9 is demonstrated using FIG. 37, FIG. 38, FIG.

The connection guide 271 is overlapped with the grain stem pressing rod 251 of the above-mentioned free guide 250 when viewed from the side, and is located inside the body than the grain stem pressing rod 251. Moreover, it overlaps with the feed chain 9 from the side and planar view. That is, the connection guide 271 is arrange | positioned in the state along the conveyance upstream of the feed chain 9, and is attached to the harvesting frame of an auxiliary conveying apparatus or a harvesting | reaping part.

And the front end part of the connection guide 271 is supported by the support frame 272, and this support frame 272 is after the side frame 273 which supports the rise and harvest part 3 of the whole body. It is mounted at the end.

The front end of the connection guide 271 is bent at approximately right angles, and this bent portion extends to the left to protrude to form an extension protrusion 271a. This extension protrusion 271a is inserted into the insertion hole provided in the support frame 272, and the connection guide 271 is supported by the support frame 272 so that rotation is possible. At the same time, the connection guide 271 is movable to the left-right direction with respect to the support frame 272. An anti-separation pin 274 for preventing the support frame 272 from falling out from the insertion hole is inserted into the distal end portion (the left end portion) of the extension protrusion 271a. The pin 274 restricts the movement of the connecting guide 271 in the left and right directions at a distance L1.

Further, all of the connection guides 271 are provided with protrusions 271b protruding in parallel with the extension protrusions 271a. A thrust (washer or ring) 275 is attached to the tip (left end) of the protrusion.

The connection guide 271 is biased downward by the leaf spring 276. The leaf spring 276 is formed in a substantially "tsu" shape when viewed from the side cross section, and one end 276a extending shortly from both ends of the "tsu" shape is attached to the bolt on the upper surface of the support frame 272. It is fixed by. On the other hand, the lower one end 276b extending in the shape of "tsu" is in contact with the protrusion 271b of the connection guide 271, and the biasing force of the leaf spring 276 is connected through the protrusion 271b. It acts on the guide 271. In this way, the connecting guide 271 is pushed downward so as to sandwich and convey the grain stem between the connecting guide 271 and the feed chain 9.

In addition, the hinge 275 at the tip of the protruding portion 271b abuts against the left end surface of the leaf spring 276, thereby restricting the movement of the connecting guide 271 in the left and right directions.

In addition, a guide member 277 serving as a mechanism for regulating and guiding holding and guiding rotation in the vertical direction and the left and right direction of the connection guide 271 is fixed to the support frame 272. The guide member 277 is formed with a substantially L-shaped guide groove when viewed from the front, and the width of the guide groove is slightly larger than the diameter of the connection guide 271. The L-shaped guide groove is composed of an up-down groove 277a and a left-right groove 277b, and an up-down groove 277a is formed to be opened downward.

In the state where the connection guide 271 is pressed downward by the leaf spring 276, the connection guide 271 is fitted into the groove 277a in the vertical direction.

Usually, the connection guide 271 is urged downward by the biasing force of the leaf spring 276, and is arrange | positioned overlapping with the feed chain 9 when viewed from the side.

By the way, in the case of maintenance, the feed chain 9 may be rotated and the gas left side may be opened. In this case, if the connection guide 271 is left in the normal state, it interferes with the feed chain 9 and hinders the rotation of the feed chain 9. For this reason, it is necessary to lift the connection guide 271 upward and resist interference with the feed chain 9 in response to the biasing force of the leaf spring 276.

At the time of maintenance, the connection guide 271 at the time of rotating the feed chain 9 is demonstrated.

First, one end 276b of the leaf spring 276 is lifted upward so that the biasing force of the leaf spring 276 does not act on the connection guide 271. In this way, the connection guide 271 can rotate in an up-down direction. Then, the connecting guide 271 is lifted up and rotated upward. At this time, the connection guide 271 is guided to the groove 277a in the vertical direction of the guide member 277 and rotates until it comes in contact with the upper end of the groove 277a. Thereby, the connection guide 271 does not overlap with the feed chain 9 from the side view, and it becomes possible to rotate the feed chain 9.

Next, the connection guide 271 is moved to the right by the distance L1. At this time, the leaf spring 276 is lifted up to a position where the hinge 275 at the tip of the protrusion 271b of the connection guide 271 does not interfere with the one end 276b of the leaf spring 276. In this case, the connection guide 271 is guided and moved to the groove 277b in the left and right directions of the guide member 277. As a result, the connection guide 271 does not overlap with the feed chain 9 in plan view.

At this time, since the connection guide 271 is fitted in the groove 277b, the rotation of the connection guide 271 in the vertical direction is restricted by the groove 277b. Then, when the lifting of the leaf spring 276 is released, the connection guide 271 is pushed downward by the biasing force of the leaf spring 276, so that the position of the connection guide 271 is maintained. That is, the connection guide 271 is kept in a non-overlapping state when viewed in plane with the feed chain 9.

In the structure of the conventional combine, when the feed chain is rotated, the connection guide is fixed from above using a chain or the like. In this case, it is necessary to invert the connection guide upwards and also to invert it beyond the center of gravity. For this reason, since there are many space restrictions and it fixes in an unstable state, it might return to the original position.

On the other hand, in this embodiment, the mechanism which keeps the connection guide 271 above the conveyance upstream of the feed chain 9 in the position which does not overlap with the feed chain 9 from the side view is provided. This holding mechanism has a simple configuration in which a support frame 272, a bolt 275, a leaf spring 276, a guide member 277, or the like is provided at the front end portion of the connecting guide 271. As a result, the space is not restricted. In addition, it can be maintained in a position that is stable and does not overlap with the feed chain 9 when viewed from the side.

Next, the said barrel supply start part 280 of the threshing part 20 is demonstrated.

As shown in FIG.4 and FIG.40, the barrel supply start part 280 is formed in front of the swing | separation sorting apparatus 31 from the entrance side of the feeding chamber 21 above. An upper portion of the barrel supply starting end portion 280 that guides the grain stem from the lower surface and the front surface of the supply guide plate 281 extending forward from the front end of the water receptacle 23 provided around the lower portion of the barrel 22 when viewed from the side. A guide plate 282 is provided and a pulley or the like for transmitting power to the rotating shaft of the barrel 22 is housed.

The supply guide plate 281 is fixed to the base frame 33. This supply guide plate 281 is comprised from an iron plate, an elastic body, etc., is smoothly bent to the left-right direction according to the outer periphery shape of the barrel 22, and is formed in the trough shape from the front view. And when viewed from the side cross section, all of the supply guide plates 281 are rearward downward inclined portions, and grains and the like easily flow into the rear feeding chamber 21 (threshing portion 20), and the rear portion of the supply guide plate 281 In order to connect, it is comprised substantially parallel (concentric circle) with the outer peripheral surface of the barrel 22, and it is made to be horizontal at the lower end.

The upper guide plate 282 guides the grain stem conveyed by the feed chain 9 to the lower portion of the barrel 22, thereby preventing the grain stem from being entangled in the rotary shaft of the barrel 22 or the like. The upper guide plate 282 is fixed to the frame of the feeding chamber 21 so as not to become unstable.

Thus, the grain stem guide structure of the edge part 280 at the time of the rapid supply formed from the supply guide plate 281 and the upper guide plate 282 opens the side of the feed chain 9 side in substantially "co" shape when seen from the front. And the grain stem conveyed by the said grain stem conveyance apparatus 170 which consists of a feed chain 9 etc. between the feed guide plate 281 and the upper guide plate 282, and threshing part 20 is not clogged. It can be returned to.

As shown in FIG. 41, the feed guide 9 and the lead as the scattering prevention guide are provided on the inner surface of the feed chain 9 and the feed chamber 21 on the right and left reverse side (the right side in the forward direction) as the rapid supply start end portion 280. Plate 284 is provided. In more detail, when it sees from the front of the barrel supply start part 280, all the inside of the feeding chamber 21 of the inner side (closed side) of a "(co) -shaped opening, the transfer lead board 284 comprised from the plate-shaped member, and this lead The conveyance guide 283 formed convexly at the side position of the plate 284 is provided, and this conveyance guide 283 and the lead plate 284 are a rear upper part of the supply guide plate 281, and the outer frame of the upper guide plate 282 is carried out. And a groove-shaped connecting portion 285 formed between the outer frame of the water net 23.

The conveying guide 283 is installed in a substantially triangular pyramid shape and swells to the barrel 22 side over the corners of the upper guide plate 282 and the connecting portion 285, thereby guiding the tip of the grain stem to the barrel 22 side and supplying a quick supply starting point. It guides so that it may not flow back to the part 280 side. Moreover, the lead plate 284 is provided continuously above the inner surface of the feeding chamber 21 of this conveyance guide 283, and is arrange | positioned in front of the water net 23. As shown in FIG. The lead plate 284 is provided so as to substantially fit the inclination of the rotatable plate 24 disposed on the inner circumferential surface of the upper chamber 21, and the extension direction of the plate surface of the lead plate 284 is the plate surface of the rotatable plate 24. Heading. In this way, the tip is arranged in the feed chamber 21 by the lead plate 284 so as to be threshed by the barrel 22 so as to be substantially perpendicular to the feed chain 9 in the feed chamber 21, and at the time of threshing A straw or the like, and the separated hell, are guided to flow in parallel with the rosin plate 24. And the loss is reduced by returning the straw etc. which were scattered to the barrel supply start part 280 side conventionally into the chamber 21. As shown in FIG.

The lead plate 284 is made of a plate-like member such as an iron plate, and is configured in consideration of strength, wear resistance, and the like so as not to be deformed by the pressure in the feeding chamber 21. As shown in FIG. 42, the lead plate 284 is bent in an L shape and is vertically installed with respect to the inner circumferential surface of the feeding chamber 21. The fixing part 284a of the bottom surface of the lead plate 284 is fastened to the inner side surface of the feeding chamber 21 by the bolts 286 and 286, etc., and is comprised so that attachment and detachment are possible. For this reason, replacement work can be performed easily, such as the case where the lead plate 284 is damaged, and maintenance property can be improved.

In this way, as the rapid supply start end portion 280 of the threshing portion 20, by arranging the lead plate 284 on the inner side of the feeding chamber 21 on the side opposite to the feed chain 9, the straw or the like in the feeding chamber 21 is removed. It is possible to prevent the scattering to the rapid supply start end 280, to guide the rotatable plate 24 side to the end side of the feeding chamber 21. Then, the grains and the like that have been scattered to the conventional rapid supply start end 280 can be recovered, and the loss can be reduced.

In addition, the scattering prevention guide consisting of the transfer guide 283 and the lead plate 284 is the back surface side of the upper guide plate 282 on the opposite side to the feed chain 9 of the rapid supply start end portion 280 of the threshing portion 20. In this case, the same effects as described above can be obtained.

Subsequently, the structure of the water gong 23 of the threshing part 20 is demonstrated using FIGS. 43-45.

The water net 23 is divided into two by using the grain tank 13 side (the right side in the forward direction) as the inner mesh 290 and the feed chain 9 side (the right side in the forward direction) as the front mesh 291. 27) In the line Y (see FIG. 44) in the front-rear direction of the starting end, the inner mesh 290 and the front mesh 291 are connected by the connecting portion 295.

The circumference of the inner mesh 290 and the front mesh 291 is supported by an L-shaped frame when viewed in cross section, and the connecting portion 295 is in contact with the inner mesh 290 and the front mesh 291. The part is bent at approximately right angles toward the radially outer side of the barrel 22 to form network frames 290a and 291a, respectively. In this connecting portion 295, the inner mesh 290 and the front mesh 291 are formed. The pins 292a, 292a, and 292a protrude in a tangential direction from positions at substantially equal intervals in the front and rear directions from one of the mesh frames, and the pins 292a protrude from the other mesh frames. Correspondingly, an insertion hole is formed, and the pin 292a is fitted into the insertion hole by pushing the front mesh 291 to connect the inner mesh 290 and the front mesh 291. In addition, the position and number which provide the said pin 292a are not limited, Moreover, this connection structure is not limited, either, A structure etc. which fit unevenness | corrugation may be sufficient.

Further, a mesh frame 290b is formed on the grain tank 13 side of the inner mesh 290 similarly to the mesh frame 290a, and pins 292b, 292b, and 292b are formed from the mesh frame 290b. The inner mesh 290 is formed by protruding in the tangential direction by making the position in the front-rear direction substantially the same as the pin 292a, and fitting these pins 292b to the stay 296 serving as a fixing member provided on the main body side. ) Is fixed to the main unit, and the water net 23 is fixed below the barrel 22.

As shown in FIG. 44, the water net 23 is formed in an approximately L shape by planar view by the inner net 290 and the front net 291, and the front net 291 protrudes slightly in the front and rear direction slightly. It is made to be a structure. Moreover, the water net 23 is comprised by fixing the thin metal plate 294 on the mesh frame 293, and the plate 294 has a rectangular pore 294a almost uniformly over the entire surface. It is perforated to form a mesh shape. Through these pore 294a, the ear, the straw, etc. which fell on the water net 23 by the plunges 22a, 22a, ... are laid down. In addition, in this embodiment, although the shape of the pore 294a was made into the rectangle, you may make it a circle, a polygon, etc.

As described above, the projection 291c in the substantially L-shaped water net 23 in plan view is positioned at the bottom of the rear half of the barrel 22 as the second half of the grain stem conveyance path 9a by the feed chain 9. do. On the upper surface of the protruding portion 291c, a partition 297 having a predetermined height formed of a metal plate or the like is disposed in parallel with the direction of movement of the tooth teeth 22a by the rotation of the barrel 22. A plurality of protrusions are provided at equal intervals in the front-rear direction so as to be positioned between them. In the projection part 291c in which the partition 297 was provided with a plurality of projections, the grain stem conveyed by the feed chain 9 was lifted upward by the partition 297 and pressed downward by the jets 22a, 22a,... It is supposed to be able to bring the teeth 22a, 22a, ... into contact with the grain stem.

Moreover, the water net 23 is comprised so that attachment and detachment from the gas side may be carried out. That is, as described above, the feed chain frame 190 configured to be opened and closed on the side of the body is opened, taken out or inserted in a circular arc along the rail provided on the frame 298 provided on the body side from the side of the body, and then detached and inserted. It is possible. Therefore, stoppers 299 and 299 are provided on the side of the connecting portion 295 of the mesh frame 293 before and after the inner mesh 290, respectively. In the stoppers 299 and 299, the leaf spring 299a formed by bending a portion of the plate-like member to the mesh frame 293 in the shape of a mountain is fastened and fixed by bolts or the like, and the leaf spring 299a is framed on the body side. The fastener 299b or the like can be used to lock the door 298 so that the inner net 290 does not slip off when the front net 291 is pulled out due to maintenance or the like.

As shown in FIG. 45 and FIG. 46, in the water net 23 of such a structure, the front mesh 291 located in the left side of the body which is easy to generate | occur | produce skitter remnants, and the quick tooth planted and installed in the outer periphery of the barrel 22 ( 22a) It is possible to adjust the clearance gap with the rotational track T of the tip part, and the position adjustment part 300 for this is provided. That is, a U-shaped bent portion 291d is formed at the left end (feed chain 9 side) end of the front mesh 291, and an L-shaped mesh frame 291b is formed inside the bent portion 291d. The upper side of the fixing plate 306, which is a fixing member bent in a crank shape, can be inserted between the mesh frame 291b and the bent portion 291d as a fitting portion. .

The position adjusting part 300 includes a bracket 305 fixed to the body side, a fixing plate 306 which is a plate member for position adjustment disposed at an upper end of the bracket 305, and the fixing plate 306. It consists of a fixture 307 for fixing to the bracket 305, and a shim (309) for adjusting the gap.

The bracket 305 has its lower end fastened to the one end of the frame of the feeding chamber 21 by the bolt 304 at the lower left side of the front mesh 291, and the upper end thereof is the mesh of the left end of the front mesh 291. It extends toward the frame 291b. A fixing plate 306 is provided at the upper end of the bracket 305 so that one end thereof abuts against the mesh frame 291b of the front mesh 291, and the base side has a pin 307a and a nut 307b. It is fixed by the fixture 307 which consists of these. That is, the fixing plate 306 and the wedge 309 are inserted in the bracket 305 in the state which inserted the head 307c of the pin 307a, and it clamps and fixes with the nut 307b.

In this structure, the front mesh 291 is pushed to the inner mesh 290 side so that the pin 292a is fitted into the connection portion 295 with the inner mesh 290, and at the same time, bending with the mesh frame 291b. The fixing plate 306 is inserted between the portions 291d, and is pressed and fixed by the front mesh stop 310 described later. At this time, in the gap with the rotational track T of the tip portion 22a, the fixed plate 306 presses the mesh frame 291b by increasing the number of wedges 309 when the gap is to be narrowed. Approach the side. In addition, in the case where it is desired to widen this interval, the mesh frame 291b can be made to the outside by reducing the number of wedges 309. That is, the front mesh 291 can be rotated around the connecting portion 295 with the inner mesh 290 to adjust the gap. In addition, the gap can be adjusted in the same manner by preparing a plurality of wedges having different thicknesses in advance and replacing these wedges. However, the water net is constituted by the front net 291 and the inner net 290, but one net may be divided into three or more.

Thus, the position adjusting part 300 is formed in the part which fixes the fixing plate 306 interposed between the front mesh 291 and the bracket 305, and of the wedge 309 arrange | positioned at this position adjusting part 300. By increasing or decreasing the number or adjusting the thickness, the gap (spacing) between the front mesh 291 and the rotational track T of the tip of the feed 22a can be adjusted. In this way, by making it possible to adjust the space | interval between the front web 291 and the rotational track T of the tip part 22a of the front end, the space | interval of the prescription | regulation according to the kind of harvested crop can be ensured. As a result, it is possible not only to effectively detach the tip portion of the grain while preventing the cutting of the grain stem occurring when the gap is narrower than the desired interval, and, on the contrary, to prevent the scraping residue occurring when the gap is wide. It becomes possible and the improvement of threshing precision can be aimed at.

Moreover, the position adjustment part 300 interposes the wedge 309 in the pin 307a which fixes the fixing plate 306 attached to the bracket 305, and increases or decreases the number of these wedges 309, or is different. Since the wedge 309 has a simple configuration, it is possible to easily adjust the distance between the front mesh 291 and the rotational track T of the tip end portion 22a of the teeth.

In addition, the position adjustment part 300 of such a structure can also be provided in multiple numbers in the gas front-back direction, ie, the front-back direction of the barrel 22. FIG. In this case, a plurality of brackets 305 are provided at arbitrary intervals within a range of the front and rear directions of the front net 291, and the position adjusting unit 300 is configured at each position.

Thus, by providing a plurality of position adjusting units 300 in the front and rear directions of the body, it is possible to adjust the position of the front mesh 291 separately at each position, and the front mesh 291 and the tooth feed 22a at each position. It is possible to adjust the interval with the rotational trajectory T of, and fine adjustment of this interval can be performed according to the type of crop to be harvested and the threshing state of the grain, and it is possible to prevent ear cutting and skitter residue, thereby improving the threshing accuracy. We can plan more.

Subsequently, the configuration of the front mesh stop 310 will be described.

As shown in FIG. 47, the front mesh stopper 310 is arrange | positioned at the side of the water net 23, and the feed chain 9 side. The front mesh stop 310 is formed with an approximately same radius of curvature as the water net 23 and is disposed on an extension of the front net 291 forming the water net 23. In addition, the front mantle 310 is fixedly installed on the feed chain frame 190 that supports the feed chain 9 so as to be openable and integrally provided, so as to be opened and closed together with the feed chain frame 190 have. In such a configuration, the feed chain frame 190 is fixed to the body side while the feed chain 9 is wound, and the side end on the feed chain 9 side of the front mesh 291 is pressed so as not to bend.

In addition, on the side of the inner side (the barrel 22 side) of the front mesh stop 310, a plurality of the same in the direction (extension) with the partition 297 provided on the protrusion 291c of the front mesh 291 described above. A bar or the like protrudes, and similarly to the partition 297, the bar raises the grain stem upwards and presses downwards by the feed teeth 22a, 22a, ..., so as to push the grain stem 22a into the grain stem. , 22a,...

The front mesh stop 310 is configured to be adjustable in position with respect to the barrel 22. That is, the clearance gap (interval) S between the inner side surface 310a which is the surface of the barrel 22 side of the front mesh stop 310, and the rotational track T of the distal end of the barrel 22a of the barrel 22 is comprised so that adjustment is possible. . Hereinafter, the structure of this clearance adjustment is demonstrated using FIG. 30 and FIG. 47. FIG.

On the side of the front mesh stop 130, which is integrally provided with the feed chain frame 190, and on the side of the feed chain 9 side, there are a plurality of places at approximately equal intervals in the front and rear direction of the body (three places in this embodiment). ), Adjustment plates 311a, 311b, and 311c for fixing the front mantle 310 to the feed chain frame 190 so that they can be adjusted in position are provided.

These adjustment plates 311a, 311b, and 311c are fixed to the upper stay 312 and the lower stay 313 arranged in parallel, respectively, and the upper stay 312 and the lower stay 313 are a feed chain frame. Two upper and lower portions are respectively fixed to the reinforcing members 196a, 196b, and 196c which are provided between the horizontal frame 190a and the inclined frame 190b constituting the 190. That is, each of the reinforcing members 196 is provided with a U-shaped upper stay 312 and a lower stay 313 fixed by welding or the like as viewed from the side, respectively, and the upper stay 312 and the lower stay ( Each of the adjustment plates 311 of the front mantle 310 is fixed to the 313 so as to be adjustable in position by bolts 314 and 315, respectively.

In the upper stay 312 interposed between the upper fixing part of each adjustment plate 311, a bolt hole, which is usually circular, is drilled, and through the upper stay 312, the adjustment of the adjustment plate 311 is performed by the bolt 314. The upper part is positioned, and on the other hand, the lower stay 313 interposed between the lower fixing part of each adjustment plate 311 has an elongated long hole 316 in the direction with respect to the barrel 22 of the front mesh stop 310. It is made of a structure which can be perforated and fixed by bolt 315 via this lower stay 313 so that adjustment is possible. That is, the long hole 316 drilled in the lower stay 313 follows the trajectory of the bolt 315 when the front mesh stop 310 is rotated to the gas side centering on the bolt 314 of the upper fixing part. By rotating the front mesh stopper 310 around the bolt 314 in a state in which the bolt 314 of the upper fixing part is fastened to such an extent that the front mesh stop 310 can rotate. It is a structure that can adjust the clearance S mentioned above.

With this structure, the clearance S, that is, the inner surface 310a of the front mesh pusher 310 and the sharp teeth 22 at the positions of the control plates 311a, 311b, and 311c of the front mesh pusher 310, respectively. (22a) The space | interval with the rotary track T of the front-end | tip part is adjustable. On the other hand, the number or shape of the adjustment plate is provided in the front mantle 310 is not limited to this embodiment. Further, the bolt hole on the upper stay 312 side of the upper fixing portion 310 of the front mesh stop 310 is a long hole and the lower fixing portion side is the pivot center, or both the upper stay 312 and the lower stay 313 By drilling a long hole, it is also possible to structure the position of the front mesh stop 310 in the upper and lower fixing portion.

In this way, the front mesh stop 310 can be fixed to the feed chain frame 190 so as to be adjustable in position, whereby the inner side 310a of the front mesh stop 310 and the sharp teeth of the barrel 22 22a) The clearance S with the rotational track T of the tip can be adjusted to ensure a specified clearance for the type of crop to be harvested. Accordingly, it is possible not only to effectively detach the tip part of the grain while preventing the cutting of the grain stem generated when the gap S is narrower than the desired interval, and to prevent the remnant of the skid that occurs in the wide case on the contrary. Thus, threshing accuracy can be improved.

In addition, by providing a plurality of such position adjustment points of the front mantle 310 in the front and rear direction of the body, that is, the front and rear direction of the barrel 22, it is possible to adjust the interval of the gap S at each position, harvesting crops According to the type and the threshing state of the grain stem, fine adjustment of the clearance S in a grain stem conveyance path | route can be prevented, and ear cutting and skitter residue can be prevented, and threshing precision can be improved more.

Subsequently, the discharge straw conveying apparatus 320 will be described with reference to FIGS. 48 and 49.

The discharge straw conveying apparatus 320 conveys the discharge straw conveyed from the feed chain 9 of the said grain stem conveyance apparatus 170 to the back of a gas by the discharge straw conveying chain 10, and a discharge straw conveys the discharge straw conveying chain at that time. By changing the position that falls away from (10), it is cut out by the discharge straw cutter apparatus 321, and it is discharged to a package, or it is discharged as it is without cutting, or it binds with a binding apparatus, and changes whether it throws into a package.

The discharge straw conveying device 320 is mainly the discharge straw conveying chain 10, the discharge straw holding guide 330, the whole support rod 331, the spring 332, the rail body 333, the slide rollers 334, 335 And a rear support rod 336, a spring 337, a link mechanism 338, and the like.

The discharge straw conveyance chain 10 extends toward the right rear side from the rear end side of the feed chain 9. The auxiliary straw straw conveying chain 325 is installed in this discharge straw chain 10 in parallel, and while holding the underside of the discharge straw by the discharge straw conveying chain 10, the front end side of the discharge straw is an auxiliary discharge straw. It is hold | maintained by the conveyance chain 325, and it is made to convey discharge straw backward. And the discharge straw holding guide 330 is arrange | positioned under this discharge straw conveyance chain 10. As shown in FIG.

The discharge straw holding guide 330 is composed of a main guide 340 and a slide guide 341, and the main guide 340 is horizontally rolled in the horizontal direction. The main guide 340 is a member having a round bar shape (cylindrical shape) having a bent portion 340a whose one end (entrance side, left side) is bent downwardly in a substantially "U" shape, and the bent portion 340a is a feed chain ( It is arrange | positioned toward the terminal side of 9), and conveyance is facilitated, holding the grain stem between the discharge straw conveyance chain 10 and the main guide 340. FIG.

In addition, one end (upper end) of the supporting rod 331 is rotatably pushed to the root portion of the bent portion 340a of the main guide 340, and the other end is a U-shape when viewed from the side fixedly installed to the threshing frame 345. The main guide 340 is discharged straw conveying chain (3) by a spring 332 which is mounted through a hole drilled in the upper and lower surfaces of the attachment member 343, and which is inserted outside the supporting rod 331 in the attachment member 343. It is biased in the direction (upward) approaching 10).

The rail body 333 is a substantially inverted U-shaped member when viewed from a cross section, and is fixedly installed on the lower surface of the main body of the main guide 340 substantially parallel to the longitudinal direction to slidably receive the slide guide 341 from below. do.

The slide guide 341 is a substantially L-shaped round bar (cylindrical) member having one end (inlet side and left side) curved. The bend portion 341a of the slide guide 341 has a start end side extending downward, and a horizontal portion is accommodated in the rail body 333, and a slide roller 334 provided at appropriate intervals in the lower portion of the rail body 333. , 335, and are supported by the slide rollers 334 and 335 so as to be slidable in the longitudinal direction without falling off from the rail body 333.

The rear support bar 336 is one end (upper end) of the rail body 333 rear side (far side from the bend 340a of the main guide 340) is squeezed rotatably, and the other end is a U-shaped fixed fixed to the body of the combine The rail body 333 (main guide 340) by a spring 337 which is mounted through a hole drilled in the upper and lower surfaces of the attachment member 344, and is externally inserted into the rear support rod 336 in the attachment member 344. ) Is biased in a direction (upward) close to the discharge straw conveying chain 10.

By the above configuration, when the discharge straw is not conveyed by the discharge straw conveyance chain 10, the body portion of the main guide 340 and the longitudinal direction (the conveyance direction) of the discharge straw conveyance chain 10 are predetermined. It is supported by springs 332 and 337 so as to be substantially parallel at intervals.

On the other hand, when the amount of straw discharged by the discharge straw conveying chain 10 increases, the main guide 340 is pressed downward against the biasing force of the springs 332 and 337. At this time, since all the support rods 331 and the rear support rods 336 are pivotally pushed with respect to the main guide 340 and the rail body 333, respectively, the body portion of the main guide 340 according to the variation of the amount of straw discharged. It is possible to take a non-parallel angle with respect to the longitudinal direction of the discharge straw conveying chain 10, and it is possible to convey discharge straw reliably back.

By the way, as shown in FIG. 50, FIG. 51, all the support rods 331 which serve as the point supporting the front process side of the said main guide 340 are arrange | positioned outside the threshing base frame 345, but conventionally all Since the supporting rod was disposed inside the threshing frame, the fan covering the suction fan is increased when the diameter of the suction pan disposed in the threshing frame is increased or the arrangement position is changed in order to improve the sorting performance at the sorting part. The casing and all the supporting rods could interfere, so the diameter of the suction fan could not be changed to the required size. Moreover, even if all the supporting rods are arrange | positioned so that the interference with a suction fan casing may be avoided, since the arrangement position of all the supporting rods is limited, there exists a problem that the stroke which a slide guide requires is not secured.

Therefore, in this embodiment, all the supporting rods 331 are arrange | positioned outside the threshing base 345 with respect to the suction pan 40 arrange | positioned inside the threshing base 345. That is, the attachment member 343 is fastened by the fastening member to the outer side surface of the threshing base frame 345, and the support rod 331 is penetrated through all the holes provided in the attachment member 343 as mentioned above.

Therefore, since the interference of the suction fan casing 161 and the whole supporting rod 331 can be avoided irrespective of the magnitude | size or arrangement position of the diameter of the suction fan 40, the diameter of the suction fan 40 can be made into a required magnitude | size. have. In addition, it is possible to secure the stroke required for the slide guide 341.

Subsequently, the slide method of the slide guide 341 will be described. This slide guide 341 is able to slide by operation of the operation lever provided in the control part through the link mechanism 338 provided below the rail body 333, and the like.

51 and 52, the link mechanism 338 mainly includes the operation arm 350, the attachment member 351, the pin 352, the rotation arm 353, the rotation boss 354, and the attachment member ( 355, the rotational arm 356, and the like.

The operation arm 350 is made of a plate-like member that is hollow, and long holes are formed in the connecting portions on both sides thereof, and the allowable portion is formed. That is, the locking hole 350a is drilled in one end (rear side) of the operation arm 350, and the long hole 350b is drilled in the other end (front side). This locking hole 350a has a slightly long oval shape, and is connected by inserting the distal end of the bent portion 341a of the slide guide 341 (see Fig. 49). In this way, the slide guide 341 is inserted into the locking hole 350a of the operation arm 350 so as to be slidable up and down, so that the main guide 340 moves up and down in conjunction with the slide guide 341. As a result, even when the discharge straw is conveyed and the interval between the main guide 340 and the slide guide 341 and the discharge straw conveying chain 10 is widened or narrowed, the bent portion 341a is moved up and down without being subjected to large resistance. It can slide, and it can slide easily even after operating a switching lever. In addition, the discharge straw can be smoothly conveyed backward without disturbing the posture of the discharge straw.

In addition, the long hole 350b drilled at the other end (front side) of the operation arm 350 is connected to the gas side via a pin. That is, the pin 352 penetrates through this long hole 350b, and this pin 352 is fixed to the attachment member 351 fixed to the base of a combine. In this way, the operation arm 350 can slide slide along the pin 352 at the time of a switching operation, but it does not fall out from the attachment member 351. As shown in FIG.

In the middle part of the operation arm 350, the front-end | tip part (all part) of the rotation arm 353 is squeezed so that rotation is possible. The base (rear) of this rotation arm 353 is fixedly attached to the rotation boss 354, and the rotation boss 354 is rotatably extracted by the rotation shaft 355a of the attachment member 355 fixedly attached to the base of a combine. It is. In addition, the base of the rotation arm 356 is fixedly attached to the rotation boss 354, and one end of the operation wire 357 is attached to the distal end of the rotation arm 356. The other end of the operation wire 357 is connected to an operation lever (not shown) provided in the cab 14. Moreover, the spring 358 is attached between the intermediate part of the rotation arm 353 and the base of a combine. The spring 358 is biased so that the rotational arm 353 and the rotational arm 356 rotate clockwise (toward the discharge straw discharge side) about the rotational axis 355a when viewed in plan (see FIG. 52).

When the operation lever (not shown) installed in the cab 14 is operated to the "cutting" side, the operation wire 357 is pulled toward the cab 14 against the spring 358, and the rotation arm 356 and the rotation arm are rotated. Reference numeral 353 rotates in a counterclockwise direction when viewed in plan (refer to FIG. 52) about the rotating shaft 355a. At this time, the operation arm 350 is rotated clockwise when viewed from a plane (see FIG. 52) with the pin 352 approximately at the center, and the slide straw cutter (cutting) shown in FIG. 49 is shown in FIG. 49. Position ". At this time, the rear portion of the actuating arm 350 becomes the rotational movement while the slide guide 341 moves linearly, but the actuating arm 350 and the pin 352 are pushed through the long hole 350b, The trajectory of both ends of the working arm 350 (the end where the stop hole 350a and the long hole 350b are perforated) of the operation arm 350 allows to be a straight line in the longitudinal direction when viewed in plan view.

Therefore, the slide guide 341 in which the bent portion 341a is fitted to the locking hole 350a is disposed at the position protruding from the rear of the rail body 333 along the rail body 333. It slides smoothly from the position at the time of dropping to the position accommodated in the rail body 333 (the position at the time of cutting the grain stem by the discharge straw cutter apparatus 321). In addition, when the operating lever is rotated in the reverse direction and rotated to the “release position”, the rotating arms 353 and 356 rotate clockwise when viewed in plan (see FIG. 52) by the biasing force of the spring 358. The arm 350 is rotated counterclockwise to slide the slide guide 341 to the protruding position (right side) so that the discharge straw is not guided to the discharge straw cutter device 321.

By the configuration as described above, the position at the time of dropping or directly dropping the slide guide 341 into the package after binding the discharge straw by manual operation without using an actuator such as a motor, and the discharge straw in the discharge straw cutter device 321. It becomes possible to slide in the horizontal (approximately left and right) direction to the position at the time of cutting, and this left and right movement and the up-and-down slide of the bent part 341a can be performed at about the same time, and it can slide smoothly, and it is inoperable at the time of a switching operation. It is less likely to occur, and the reliability of the device is improved. In addition, only one operation wire 357 transmits the operation on the cab 14 side, and the operation amount can be easily adjusted.

Next, the said discharge straw conveyance chain 10 is demonstrated using FIG. 48, FIG. 54-56.

The discharge straw conveying chain 10 is composed of a plurality of link plates 361, each link plate 361 is formed in a convex shape projecting outward, and the bottom of the discharge straw between the link plates (361, 361) Ipsilateral is retained. Moreover, the tine 325a is intermittently provided in the link plate which comprises the auxiliary discharge straw conveyance chain 325, and the tip side of a discharge straw is hold | maintained between these tine 325a and 325a. In this way, the discharge straw conveyed by the discharge straw conveyance chain 10 is conveyed to the back, while being held still more reliably by the auxiliary discharge straw conveyance chain 325. As shown in FIG.

The discharge straw conveyance chain 10 is wound by the drive sprocket 362 of the front side, and the driven roller 363 of the rear side. In addition, the axial direction of the drive sprocket 362 and the driven roller 363 is a horizontal direction. Thus, the discharge straw conveying chain 10 travels in an elliptical infinite track in the vertical plane. The same applies to the auxiliary discharge straw conveying chain 325 parallel to the discharge straw conveying chain 10.

The vertical surface which this discharge straw conveying chain 10 runs is made into the running surface of the discharge straw conveying chain 10, and the direction regarding the discharge straw conveying chain 10 is defined below with reference to the running surface.

In the drive sprocket 362 of the discharge straw conveying chain 10, the transmission case which the belt transmission mechanism 323 and the drive transmission mechanism are built in from the barrel drive shaft 322 which drives the barrel 22 of the threshing part 20 ( Power is transmitted through 324. In addition, the auxiliary discharge straw conveying chain 325 also transmits power from the quick drive shaft 322 through the transmission case 324, so that the discharge straw conveying chain 10 and the auxiliary discharge straw conveying chain 325 are driven synchronously. do.

As shown to FIG. 54, FIG. 55, the driven roller 363 is supported by the roller guide 364 so that rotation is possible. This roller guide 364 is provided with the pair of guide plates 365 and 365 arrange | positioned at the left and right of the running surface of the discharge straw conveyance chain 10. As shown in FIG. The pivot shaft 366 of the driven roller 363 is provided between the guide plates 365 and 365, and the bridge members 379, 379, ... which connect and fix the guide plates 365 and 365 are provided. .

On the other hand, the drive sprocket 362 is rotatably supported by the chain guide 367 which guides the discharge straw conveyance chain 10.

As shown in FIG. 56, the chain guide 367 is formed in a U-shape when viewed in a cross section, and the overall shape thereof connects the upper and lower parallel portions 367a and 367b to the parallel portions 367a and 367b. It is comprised by the connection part 367c.

The discharge straw conveying chain 10 is installed so that inner surfaces of the link plates 361, 361,... Of the discharge straw conveying chain 10 approach upper and lower ends of the chain guide 367, and the left and right link plates 361 and 361. I guide the roller pin which connects). The discharge straw conveying chain 10 is guided to the chain guide 367 and travels (drives) without meandering.

The tension apparatus 370 of the discharge straw conveyance chain 10 is demonstrated using FIG. 54, FIG.

The roller guide 364 is supported by the chain spring 367 via the tension spring 368, and the driven roller 363 supported by the roller guide 364 functions as a tension roller of the discharge straw conveying chain 10. Consists of. Here, the tension device 370 is an apparatus that supports the roller guide 364 with respect to the chain guide 367 and gives tension to the roller guide 364.

The tension device 370 is provided with guide means 371 for supporting the roller guide 364 in the chaining direction, and tensioning means 372 for biasing the roller guide 364 to the chaining side. . The guide means 371 and the tension means 372 are provided on the left and right running surfaces of the discharge straw conveyance chain 10, respectively.

In addition, in the present embodiment, the direction in which the chain is applied refers to the driven roller 363 side in the direction of connecting the drive sprocket 362 and the driven roller 363. The discharge straw conveying chain 10 is wound only on the drive sprocket 362 and the driven roller 363, and only when the driven roller 363 is moved in the direction away from the drive sprocket 362 (the discharge straw conveying chain ( This is because the tension of 10) can be increased. Similarly, the side facing the chain means the outside of the discharge straw conveying chain 10 in the direction of the chain.

First, the guide means 371 will be described.

The tip end of the guide rod 369 extending and protruding in the direction of the chain is fixed to the guide plate 365. In addition, the chain guide 367 is fixedly mounted to the support frame 374 in the horizontal direction in parallel with the direction in which the pipe-shaped guide rod support member 373 is slidably supported by inserting the guide rod 369 into the chain. It is. By arranging the guide rod supporting member 373 at approximately the same height as the pivot axis 366, the guide straw support chain 10 can be supported substantially at the upper and lower centers, and can prevent twisting and the like.

The other end of the guide rod 369 fixed to the roller guide 364 is inserted into the guide rod support member 373 fixed to the chain guide 367, and the guide rod 369 and the guide rod support member. The guide means 371 is configured by 373. By this guide means 371, the roller guides 364 are supported by the chain guide 367 so that the chain guides can be moved forward and backward, and a pair of left and right are provided.

Next, the tension means 372 will be described.

The tip end of the tension bar 375 which extends and protrudes in the direction which raises a chain is fixed to the guide plate 365. The tension bar 375 is slidably supported in the horizontal direction in parallel with the direction in which the chain is applied to the support frame 374 fixed to the chain guide 367.

As shown in FIG. 55, the support frame 374 is a U-shaped member which consists of a pair of front-back parallel parts 374a and 374b and the connection part 374c which connects both parallel parts 374a and 374b. Of the pair of parallel portions 374a and 374b, a parallel hole 374a positioned on the drive sprocket 362 side is formed with an insertion hole approximately equal to the outer diameter of the tension rod 375, and the parallel portion 374a. ), The tension bar 375 is supported to be insertable.

Further, a screw portion 375a is formed on the shaft of the tension rod 375, and nuts 376 and 377 are screwed to the screw portion 375a. The nuts 376 and 377 are double nuts, and the nuts 377 are fastening means for fixing the nut 376 on the tension bar 375. It is called a fixing nut. The tension spring 368 is mounted between the nut 376 and the parallel portion 374a via a washer 378.

The tension means 372 is comprised by the tension rod 375 demonstrated above, the parallel part 374a which supports the tension rod 375 so that insertion is possible, the nut 376, and the tension spring 368, and a pair of right and left It is arranged. Then, the tension spring 368 biases the nut 376 and the integrated roller guide 364 to the side on which the chain rests, and tension is applied to the discharge straw conveying chain 10. When the bias force is further increased, the nut 376 is rotated and fixed by the nut 377.

As described above, the tension device 370 of the discharge straw conveying chain 10 has a direction in which the chain guides the roller guide 364 with respect to the chain guide 367 on the left and right running surfaces of the discharge straw conveying chain 10. The guide means 371 which are supported so that advancing and retreating are provided, respectively. In the tension device 370, the roller guide 364 which supports the driven roller 363 rotatably is supported by the tension spring 368 to the chain guide 367 which supports the drive sprocket 362 so that rotation is possible. It is a configuration.

For this reason, the moving direction of the roller guide 364 is regulated in the direction which chains are guided by the guide means 371, and the roller guide 364 and the driven roller 363 are influenced by the biasing force of the said tension spring 368. ) Does not incline with respect to the chaining direction. In particular, in the configuration in which the tension springs 368 are provided on the left and right sides of the running surface, as in the present embodiment, even when the biasing force applied to the roller guides 364 is different from left and right, the roller guides 364 keep the chain. Stand does not tilt about direction.

Therefore, the driven roller 363 supported by the roller guide 364 inclines in the said left-right direction, and the link plate 361, 361, ... of the discharge straw conveying chain 10 always abuts on the chain guide 367. The occurrence of a problem such as wear is prevented.

In particular, in the case of the structure in which the tension springs 368 are provided on the left and right sides of the running surface, the discharge straw conveying chain 10 and the chain guide 367 do not need to equalize the biasing force of the left and right tension springs 368. It is easy to adjust the tension because constant contact is prevented.

The guide means 371 includes a guide rod 369 fixed to the roller guide 364 and a guide rod support member slidably supporting the guide rod 369 and fixed to the chain guide 377. (373).

For this reason, the roller guide 364 is slidably supported in the direction which attaches the chain to the chain guide 367. FIG. Accordingly, the driven roller 363 as the tension roller can be slid in the direction in which the chain is applied in the simple structure as described above, so that the tension device 370 is not only excellent in durability but also does not cause an increase in cost in its manufacture.

Moreover, tension means 372 is provided in the left and right running surfaces of the discharge straw conveyance chain 10, respectively. This tension means 372 is composed of the following.

First, a tension bar 375 fixed to the roller guide 364 and a tension bar support member slidably supporting the tension bar 375 and fixed to the chain guide 367 (the parallel portion 374a). to be.

Next, nuts 376 and 377 screwed to the threaded portion 375a formed on the shaft of the tension bar 375, and a tension spring 368 mounted between the nut 376 and the chain guide 367. to be.

For this reason, the roller guide 364 is biased toward the side which chain | strengths the chain guide 367 from the left and right of the running surface of the discharge straw conveyance chain 10. As shown in FIG. In addition, the bias force by the tension spring 368 on either side can be adjusted by rotating the nuts 376 and 377 with a tool. Therefore, it is possible to fine-tune the tension applied to the discharge straw conveyance chain 10 by the driven roller 363.

Next, the discharge straw safety shutter 390 is demonstrated using FIG. 1, FIG. 2, FIG. 48, FIG. 57, FIG.

As shown to FIG. 1, FIG. 2, FIG. 48, the process part cover 380 which covers the upper part of the discharge straw processing part 11 so that opening and closing is provided in the upper part of the rear side of a combine. As shown in FIG. 47, this processing part cover 380 is rotated up and down around the rotation support shafts 382 and 382 of the front-back direction to the support frame 381 which is installed standing on the gas frame 2 of a combine. It is possibly installed.

And in the process part cover 380, the discharge straw safety shutter 390 which opens and closes the opening part which is the start end side of the discharge straw conveyance chain 10 in the side position of the start end (front end) of the discharge straw conveyance chain 10. ) Is installed. The discharge straw safety shutter 390 is disposed above the rear end of the feed chain 9 and is attached to the left side of the processing unit cover 380 via the pivot axis 391 in the left and right directions, When the discharge straw conveyed by the water is discharged to the discharge straw conveyance chain 10, the base of the discharge straw pushes this discharge straw safety shutter 390 upward and rotates, and it is set as the structure closed when it is not conveyed.

Here, when the discharge straw conveyed by the discharge straw conveying chain 10 is drawn into the process part cover 380, the discharge straw safety shutter 390 moves the discharge straw safety shutter 390 to the left-right direction by the resistance. The force to try is exerted. Specifically for the following reasons.

First, the discharge straw safety shutter 390 is easily deformed when a large force is applied in the left and right directions because the front part is held at one point. On the other hand, although the discharge straw is conveyed back by the feed chain 9 in the posture of the left-right direction, when discharged by the discharge straw conveyance chain 10, the discharge straw will be conveyed in inclined direction inside a base body. At this time, since the base of the discharge straw is pinched by the feed chain 9 and protrudes laterally, the projected base is drawn into the processing unit cover 380 by the discharge straw transfer chain 10, and the discharge straw safety shutter ( The 390 is pushed upward to rotate, and at the same time, the discharge straw safety shutter 390 is also drawn inward.

That is, since the discharge straw safety shutter 390 is applied with a force to pull this discharge straw safety shutter 390 inward by the discharge straw conveyed to the discharge straw conveying chain 10, conventionally, the discharge straw safety shutter 390 was caught by the base and deformed or damaged.

Therefore, the combine of this embodiment is provided with the means which regulates the movement (torsion) to the outer side of the discharge straw safety shutter 390. As shown in FIG. This regulating means uses the fixed lever 383 of the processing part cover 380.

As shown to FIG. 57, FIG. 58, the fixing lever 383 of the process part cover 380 which protrudes from the left side surface of the process part cover 380 is provided. The fixing lever 383 is a fixing lever that releases when the processing unit cover 380 is opened for maintenance or the like. When the fixing lever 383 is lifted up, the fixing lever 383 is released.

The fixed lever 383 bends the tip of the lever 383b forward to form a grip 383a, and the front end of the grip 383a is bent inward again to approach the discharge straw safety shutter 390. Formed. When viewed from the left side, the grip 383a overlaps the rear portion of the discharge straw safety shutter 390 and is disposed to overlap the inlet 380a opened on the left side of the processing unit cover 380.

By the configuration as described above, the discharge straw safety shutter 390 is drawn in when the discharge straw is conveyed by the discharge straw conveying chain 10, but the grip is rotated upward along the outer surface of the processing section cover 380. In contact with 383a, deformation is prevented.

For this reason, even if the discharge straw conveyed to the discharge straw conveyance chain 10 is caught by the discharge straw safety shutter 390, even if the force of the left-right direction is applied to the discharge straw safety shutter 390, the left and right of the discharge straw safety shutter 390 will be given. Movement is restricted to prevent deformation or breakage of the discharge straw safety shutter 390.

It can be used for the agricultural work vehicle which threshes and sorts while conveying the harvested grain stem, and has a grain threshing and sorting apparatus, and obtains a grain, and discharges a straw.

Claims (7)

In the threshing apparatus which consists of a threshing part and a sorting part, the sifting | difference between the water net and the suction fan arrange | positioned behind the extension line as a shake lower part of the threshing part, and above the shaker sorting device of the sorting part A combine characterized in that a device is provided and a guide member is provided between the water net and the screening device. The method of claim 1, The said sifter is comprised from the oscillation body and the oscillation drive member, Comprising the curved guide member which protrudes downward from the side part of this oscillation body, The combine characterized by the above-mentioned. The threshing apparatus which consists of a threshing part and a sorting part WHEREIN: The combine characterized by providing the rear side grain board integrally with a rocking | fluctuation sorting apparatus above the rear part of a rocking | fluctuation sorting apparatus, and above a 2nd conveyor. The threshing apparatus which consists of a threshing part and a sorting part WHEREIN: The combine characterized by providing the rear side grain board below the inclination upper side rear of the second pan above a 2nd conveyor, and behind the left and right side plates of a rocking | flux sorting apparatus. A suction fan is disposed at the rear of the threshing apparatus in order to discharge the discharge straw or dust generated from the threshing unit or the sorting unit from the gas, and is a lower part of the suction fan and the suction wind of the suction fan does not act above the second conveyor. A combine characterized by the provision of a rear grain plate. In the fan casing of a suction fan disposed in the rear of the threshing apparatus in order to discharge dust or dust discharged from the threshing unit or the sorting unit from the gas, a suction hole is provided on the upper surface of the fan casing, and the upper part is opened around the suction hole. The combine characterized by the provision of a guide body. In the fan casing of a suction fan disposed at the rear of the threshing apparatus for discharging straw or dust generated from the threshing unit or the sorting unit, the lower guide plate of the fan casing includes a front guide plate, a back guide plate, and a front guide plate. A combine comprising a hinge for connecting the rear guide plate, the rear guide plate being extended downward and inclined to the rear side, and the rear guide plate being pivoted upward by using the hinge as a point.

Images