JP2009005662A - Thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: In a conventional configuration, scraps and the like push up the handle cover by rotation of the handle cylinder, and a gap is formed at a joint portion between the handle cover of the handling chamber and the front plate, and dust and soot are blown out from the gap. There was a problem of accumulation on the traveling frame.
SOLUTION: The present invention guides and drops a blowout from a gap between a front plate (11) of a handling chamber (8) and an openable / closable handling cylinder cover (10) onto an inlet funnel (12) on the lower front side. A guide cover (13) and an elastic guide plate (15) that is connected to the lower end of the guide cover (13) and can be elastically displaced by an action of supplying cereal into the handling chamber are provided.
[Selection] Figure 5

Description

  The present invention relates to a threshing apparatus for threshing cereals supplied into a handling chamber using a handling cylinder.

Conventionally, for example, Patent Document 1 discloses a configuration in which a grain scattering prevention plate for preventing grain scattering from a grain supply port of a handling room is suspended from a front side plate toward a lower inlet funnel. Has been.
Japanese Utility Model Publication No. 60-94046

  In the conventional type, dust and soot are blown up on the traveling frame by the rotation of the cylinder, which causes dust and soot to push up the cylinder cover and create a gap in the joint between the cylinder cover and the front plate in the chamber. There was a problem of accumulating.

In order to solve the above problems, the present invention has taken the following technical means.
That is, according to the present invention, the blown-out matter blown out from the gap between the front side plate (11) of the handling chamber (8) and the openable / closable handling case cover (10) is placed on the inlet funnel (12) on the lower front side. A guide cover (13) for guiding and dropping, and an elastic guide plate (15) connected to the lower end of the guide cover (13) and elastically displaceable by the operation of supplying cereal into the handling chamber (8) are provided. A threshing device characterized by

  The blowout matter such as dust and soot that blows out from the gap between the closed barrel 10 and the front plate 11 is guided and dropped onto the inlet funnel 12 below the front side by the guide cover 13 and the elastic guide plate 15. It is collected in the handling chamber through the inlet funnel 12.

  According to the present invention, the elastic guide plate (15) is inclined so as to be lower toward the rear side, and the lower end extends to the rear in the handling chamber (8) rather than the front side plate (11). The threshing apparatus according to claim 1, wherein a predetermined gap portion (S) in the vertical direction is held between the lower end surface of the front side plate (11).

  Even if the elastic guide plate 15 is lifted upward by the action of supplying the cereal into the handling chamber, the elastic guide plate 15 is brought into contact with the lower end surface of the front plate 11 to prevent further lifting. Therefore, since the elastic guide plate 15 does not rise above the front plate 11, the guided fall of the blowout is not hindered, and the flow of the cereals passing therethrough is also performed smoothly.

  In short, according to the first aspect of the present invention, the blowout matter such as dust and soot that blows out from the gap between the barrel cover 10 and the front side plate 11 is formed by the guide cover 13 and the elastic guide plate 15 at the front lower entrance funnel. Since it is guided and dropped onto the vehicle 12 and collected in the handling chamber, the problem of accumulating on the traveling frame as in the prior art can be solved. Moreover, the scattering loss of the kite can be eliminated at the same time.

  According to the second aspect of the present invention, the effect of the first aspect of the invention can be achieved. Even if the elastic guide plate 15 is lifted upward by the action of supplying the cereal into the handling chamber, Since it is in contact with the end face and any further lifting is prevented, it is possible to smooth the flow of the cereals passing through this lower side without hindering the guide fall of the blowout, and the efficiency of the threshing work Can be improved.

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a side view of a combine. This traveling vehicle body 1 includes a pair of left and right traveling crawlers 2 and 2, and a cutting portion 4 is installed at the front portion of a threshing device 3 mounted on the rear portion. The side portion of the mowing unit 4 is provided with a driving operation unit including a driver's seat 5 and an operation box 6 and the like, and a Glen tank G for temporarily storing threshing grains is provided behind the driving operation unit. Yes.

  The threshing device 3 is configured to perform threshing processing by a handling cylinder 9 that is driven and rotated in a handling chamber 8 at the tip part of the cereal bowl that is conveyed while holding the stock by a threshing feed chain 7. The handling cylinder cover 10 covering the upper part of the handling cylinder 9 is configured to swing and open with one side of the handling chamber as a fulcrum, and the front portion of the handling cylinder cover 10 is the upper end mating surface of the front plate 11 of the handling chamber. It is set as the structure joined to 11a.

  A guide cover 13 is provided in front of the mating portion between the barrel cover 10 and the front side plate 11 to guide the blowout from the gap between the mating portions up to the upper portion of the inlet funnel 12 below the front side, and is attached to the front plate. 14 is configured to be detachably attached to 14. The guide cover 13 is configured to incline in the vertical direction so that the side of the handling cylinder 9 is lowered in a side view, and is configured to receive the blowout and guide and drop it onto the inlet funnel 12. In addition, an elastic guide plate 15 that can be elastically displaced by a supply function of the cereal into the handling chamber is connected to the lower end of the guide cover 13. In contrast to the guide cover 13 made of a highly rigid iron plate or the like, the elastic guide plate 15 is made of a flexible rubber material or the like. The elastic guide plate 15 is inclined downward toward the rear side in the same manner as the guide cover, and the lower end extends from the front plate 11 to the rear end of the handling chamber, and between the lower end surface 11b of the front plate 11. Even if the elastic guide plate is lifted upward by the action of supplying cereals into the handling chamber, it contacts the lower end surface of the front plate and prevents further lifting. It has come to be.

  The feed cover 7 side of the guide cover 13 is smooth without being caught even if the layer of the cereal stock that is conveyed on the inlet funnel 12 becomes thicker by providing a rounded portion 13a that is raised upward as the feed chain side is increased. Can be introduced into the treatment room. Further, a soot blowout prevention seal 16 surrounding the feed chain 7 side is suspended from the guide cover 13. Further, the cover mounting frame 14 is also provided with a scum splash prevention seal 17 depending on the entire width of the inlet funnel 12. Since the guide cover can be easily attached and detached, maintenance is easy, and since the guide cover and the soot blowout prevention seal are removed at the same time, it does not get in the way during maintenance. The guide cover 13 is provided with a dustproof cover receiving frame 19 for supporting the rear end of the dustproof cover. Therefore, when the guide cover is removed, the dustproof cover receiving frame is also removed at the same time, so that it does not get in the way during maintenance.

  By configuring the tip side of the inlet funnel 12 to have the same shape as the opening portion of the front side plate 11, it is possible to smoothly introduce the tip portion of the cereal portion conveyed on the inlet funnel into the handling chamber. .

  The windproof cover 20 is suspended downward from the front end of the inlet funnel 12. The windproof cover 20 prevents wind from flowing toward the lower side of the inlet funnel due to exhaust of the radiator fan of the engine and accumulation of hakamas and the like on the frame.

  Inside the guide cover 13, as shown in FIG. 2, a handling cylinder driving gear box 22 and a drainer driving belt 23 are arranged. Further, the cover 13 is provided with tension force adjusting portions 25a, 26a of both tension springs 25, 26 of the barrel driving belt 24 and the exhaust wall driving belt 23 and arranged on the driver's seat 5 side. Yes. According to this, it is possible to easily adjust the tension by opening the guide cover.

  Further, as shown in FIG. 2, when viewed from the front, an exhaust wall drive shaft 30 for driving the exhaust wall transport chain 31 is disposed on the side opposite to the feed chain of the front side plate 11. 9 is configured to pass through the front side plate 11, the middle side plate and the rear side plate 32 that pivot the shaft 9 and hold the bearing.

  As shown in FIG. 6, the drive system from the exhaust wall drive shaft 30 to the exhaust wall transport chain includes a bevel gear mechanism 34a in the bevel gear case 34, an exhaust wall transmission shaft 36 that extends obliquely rearward from the bevel gear case, and an exhaust wall transporter. The exhaust straw transport chain 31 is interlocked and connected to be driven to rotate via an exhaust straw drive sprocket 37 provided in the middle of the chain 31.

The rear plate 32 is provided with a bearing member 33 that pivotally supports the exhaust wall transmission mechanism, and an exhaust wall bevel gear case 34 is provided behind the bearing member 33. The bevel gear case 34 is supported by the bearing member 33 so as to be rotatable about the axis of the exhaust wall drive shaft 30. A rear drainer support arm 39 protrudes from a support shaft 38 provided to be supported on a rearward extension line of the drainer drive shaft 30, and the front drainer support arm 35 is disposed through an intermediate support member 35 a. The rear discharger support arm 39 is connected and held near the middle of the discharger transport frame 40 via the support member 39a, and the front discharger support arm 35 is integrated with the bevel gear case 34. Thus, the rear drainer support arm 39 is turned up and down around the support shaft 38.
And the pipe 41 which covers the outer side of the said waste straw transmission shaft 36 is comprised with a vinyl chloride pipe, and it is trying to prevent the winding of a ridge and weight reduction. Further, the outer periphery of the PVC pipe 41 is supported by a bevel gear case 34 side support plate 42a and a transport frame 40 side support plate 42b, and the horizontal direction is prevented by a bevel gear case 34 and a drive sprocket 37.

  The connection frame 43 that connects the rear chamber plate 32, the waste straw carrier frame 40, and the Glen tank G side is formed by bending the frame 42 itself so that the lower side of the pipe 41 covering the transmission shaft 36 is passed (see FIG. 7). ). As a result, it is possible to prevent the exhaust wall from being wrapped and to secure the conveyance path.

  As shown in FIGS. 8 and 9, in the combine that is input from the engine to the counter shaft 45 and is input to the handling cylinder 9 shaft 9 a and the processing cylinder shaft 46 by the belt 47, a reinforcing member 49 is provided on the front plate 48 for threshing and is reinforced. The member 49 is connected and held to the input gear case 50 and the counter bearing member 51 to the handling cylinder 9 and is also connected and held to the cutting suspension base 53 of the cutting unit via the support member 52 to prevent breakage at high load. It is configured to be able to. The reinforcing member 49 is provided with a shaft support portion 55 of the tension pulley 54 and an attachment portion 56 to the input gear case 50. The counter bearing member 51 functions as a stopper by causing the counter bearing member 51 to lock and hold the locking arm 58 that rotates together with the arm so that the tension arm 57 does not apply excessive tension force. is doing. This can prevent damage during high loads.

  Next, a configuration example of the swing sorting shelf Y will be described. As shown in FIGS. 10A and 10B, the swing shelf structure is provided with a fixed chaff sheave 60 on the front side and a movable chaff sheave 61 that swings and opens simultaneously by pushing and pulling the connecting plate 62 on the rear side. The fixed chaff sheave 60 and the movable chaff sheave 61 are provided at substantially equal intervals, and the inclination angle of the fixed chaff sheave 60 is set to an in-range angle between the fully closed and fully open angles of the movable chaff sheave. The movable chaff sheave 61 has a plurality of strip-shaped sheave plates 63 arranged at equal intervals and pivotally attached to the upper portion (pivot axis 64), and the lower portion is an arc-shaped elongated hole 65 provided in the left and right swing shelf side plates 67. The opening of the mutual selection interval can be adjusted by swinging and opening along. In addition, a long hole 66 that restricts the movement in the closing direction of only the sheave plate 63f located at the foremost portion is provided at the front end portion of the connecting plate 62 that swings and opens the movable chaff sheave. As a result, it is possible to solve the problem that the foremost sheave plate 63f comes into contact with the fixed chaff sheave when it is fully closed, and there is no gap, resulting in poor leakage of the bag.

Note that the fixed sheave and the movable sheave can be provided at equal intervals by making the movable chaff sheave longer than the fixed chaff sheave.
As shown in FIGS. 11 and 12, the fan side plate 69 is disposed inside the swing shelf side plate 67 in the Karatsu where the cross-flow fan 68 is disposed below the swing sorting shelf Y, and the suction opening 70 of the fan side plate 69 is disposed. Are communicated with each other by a bell mouth 72 extending from the machine body side plate 71. By providing the bell mouth for introducing the suction air to the machine body side plate, the suction air is not disturbed and the fan efficiency is improved. Further, the front side plate 67a of the swing shelf is configured to extend downward from the swing sorting shelf so as to overlap the fan side plate 69 in a side view. With this configuration, it is not necessary to form a constriction in the swing shelf front side plate, and the strength of the swing shelf can be increased.

Combine side view Front view of the main part of the threshing unit Perspective view of the main part Perspective view of the main part Side sectional view of the main part Top view of waste straw conveying device Side view of the main part Front view of the threshing section Side view of the main part (A) Side view when chaff sheave is fully closed, (B) Side view when chaff sheave is fully open Side view of the main part of the sorting device Front view of the main part

Explanation of symbols

8 treatment room
10 Cylinder cover 11 Front side plate 12 Inlet funnel 13 Guide cover 15 Elastic guide plate

Claims (2)

  A guide cover (13) for guiding and dropping the blown-out material blown out from the gap between the front plate (11) of the handling chamber (8) and the openable and closable barrel cover (10) onto the inlet funnel (12) below the front side; A threshing apparatus comprising an elastic guide plate (15) provided continuously with a lower end of the guide cover (13) and capable of elastic displacement by an action of supplying cereal into the handling chamber (8).   The elastic guide plate (15) is inclined so as to be lower toward the rear side, and the lower end extends from the front plate (11) to the rear in the handling chamber (8), and the lower end surface of the front plate (11). The threshing device according to claim 1, wherein a predetermined gap portion (S) in the vertical direction is held between the threshing device and the threshing device.

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