JP2006055058A - Threshing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a threshing apparatus having a function of excellently improving rachis-branch treatment function in a relay-feeding apparatus for sending second grain transferred from the end of a second recovery apparatus to a conveying apparatus for restoration. <P>SOLUTION: The threshing apparatus has constitution that treatment blade parts 46B are arranged at the outer peripheral end part of a rotary blade 14, bed knife projections 43 are fixed to the inner peripheral surface of a housing case 15, a rachis-branch removal means for grain with rachis-branch in second grain is composed of the stationary bed knife projections 43 and the treatment blade parts 46B and the delivery action surface S of the rotary blade 14 of second grain is inclined to the revolving shaft center of the rotary blade 14 so that the delivery direction of second grain conveyed by the action surface S is directed to the lower part side in a spiral delivering direction by the screw shaft 25 of the second recovery apparatus 12. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a threshing apparatus including a transport device that returns a second item collected by a second collection device to a handling chamber.

In this type of threshing device, a transporting device for returning the second product recovered by the second recovery device to the handling chamber, and a second product sent from the second recovery device to the transporting device for reduction are sent out. And a relay delivery device. And this relay delivery device is provided with a rotating blade having a relatively large diameter, and the second thing fed from the second collecting device is released to the second returning conveying device side by the rotation of the rotating blade. It was configured to send out (see Patent Documents 1 and 2)
In addition, among the rotating blades with a relatively large diameter provided in the relay delivery device, the diameter of the rotating blades is changed so that the diameter becomes smaller toward the upper side in the spiral feeding direction by the screw shaft of the second recovery device. Some are provided so as to strengthen the release action on the lower side in the spiral feed direction by the screw shaft of the second recovery device (see Patent Document 2).

JP-A-64-43134 (FIGS. 1 and 2)

Japanese Unexamined Patent Publication No. 1-222812 (page 2, upper left column, line 17 to upper right column, line 7; page 3, upper left column, lines 14 to line 19, FIGS. 1, 2, and 5)

According to the above-described conventional configuration, in the relay delivery device that sends out the second product sent from the second recovery device to the reduction transport device, a large number of second products are contained at the initial stage of conveyance of the rotary blades in the housing case. There was a problem that it was sent out, and sufficient branch raft processing could not be performed.
Therefore, conventionally, as shown in the above-mentioned Patent Document 2, the diameter of the rotary blade is set to be smaller than the diameter of the rotary blade at the end of conveyance at the initial stage of conveyance in the housing case, thereby reducing the delivery capability. However, by giving priority to rethreshing over the feeding action by the rotating blades, it has been devised to be able to receive a branch raft treatment action here. And in this structure, the diameter of the rotary blade is made larger than the initial conveying side without performing the threshing process on the final conveying side, and the feeding action is given priority over the rethreshing ability on the final conveying side. It is configured.
In the one described in Patent Document 2 configured in this way, a difference in the conveyance capability is caused in the conveyance initial stage and the conveyance final stage of the relay delivery device, and the threshing action has priority in the initial stage, In the final stage, priority is given to the delivery action, so that both the branch rachis processing and the delivery to the next process can be performed well.
However, for example, when the processing amount itself of the second product is large, the delivery function is not sufficiently lowered even on the initial conveyance side where the diameter of the rotary blade is relatively small, and the threshing process itself is performed on the final conveyance side. Since the delivery function works preferentially, the latter tends to increase at a ratio between the amount of rethreshing and the amount delivered without rethreshing, and the branch rachis processing action is not sufficiently performed after all. There was a trend.
Therefore, the present invention provides a threshing apparatus having a function capable of satisfactorily enhancing the branching and raft processing function in a reduction transporting apparatus that returns the second thing delivered from the end of the second collection apparatus to the handling chamber. It is aimed.

[Solution 1]
The technical means of the present invention taken in order to achieve the above object includes a second collection device for collecting the second item, and a transfer device for returning the collected second item to the handling chamber A, and A lifting device that lifts and conveys the second object to the handling chamber above the second recovery device, and a second object delivered from the terminal end of the second recovery device. In the threshing device configured with the relay feeding device to send to the lower end,
The relay feeding device is constituted by a rotating blade integrally provided on the screw shaft of the second recovery device, and a housing case that internally houses the rotating blade and has a communication port to the lifting device side,
A processing blade is provided on the outer peripheral side end of the rotary blade, and a processing protrusion is fixed to the inner peripheral surface of the housing case. The branch blade in the second object is formed by the fixed receiving blade protrusion and the processing blade. Constituting branch branch removal means to impart branch branch removal action on the attached grain,
The rotating blade is rotated so that the feeding action surface of the rotating blade with respect to the second thing is directed to the lower side in the spiral feeding direction by the screw shaft of the second collecting device. That is, it is inclined with respect to the axis line.

[Solution 2]
In the invention according to claim 2, in addition to the configuration of the invention according to claim 1, the processing blade portion of the rotating blade and the fixed receiving blade protrusion of the housing case are planes orthogonal to the rotational axis of the rotating blade. There is a structural feature in the point formed along the line.

According to the first aspect of the present invention, the feeding action surface of the rotary blade of the relay feeding device of the reduction conveying apparatus that returns the second thing to the handling chamber is recovered in the second feeding direction of the conveying second thing by the acting face. Since it is formed to be inclined with respect to the rotating shaft core of the rotating blade so that it is directed to the lower side in the spiral feeding direction by the screw shaft of the device, the second object that receives the feeding action by the rotating blade is lifted as it is Rather than being sent out to the device side, it is sent out toward the site where the fixed blade projections implanted in the back side of the housing case are present as the rotary blades of the relay feeding device rotate. Thus, the branch infarction process can be satisfactorily performed on the conveyance end side, and the branch infarction removal performance can be improved.
In addition, there is little possibility that the rotational force of the rotating blades on the transport initial side is sent to the transport end side in a state where it is applied to the second object and the delivery function on the transport end side is reduced.

  According to the invention of claim 2, in addition to the configuration of the invention of claim 1, the processing blade portion of the rotary blade and the receiving blade projection of the housing case are planes orthogonal to the rotational axis of the rotary blade. Therefore, the interval between the processing blade portion provided on the rotary blade and the fixed receiving blade projection of the housing case is set to a predetermined range suitable for the branch rachis processing. Branch branch treatment can be performed.

Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings.
[Overall configuration]
FIG. 1 and FIG. 2 show a threshing apparatus 1 mounted on a combine. This threshing apparatus 1 is configured by arranging a handling chamber A on the upper side, a sorting unit B on the intermediate side, and a collecting unit C on the lower side. In the threshing device 1, a handling cylinder 3 for handling and handling the harvested cereal while being held and fed by the feed chain 2 is pivoted on the handling chamber A, and the receiving net 5 for leaking the treated product. Is disposed below the barrel 3. In the sorting section B, a Glen pan 6 that receives the processed material leaked from the receiving net 5, a chaff sheave 7 and a Strollack 8 that are sequentially positioned behind the Glen pan 6, and a Glen sheave 9 that is positioned below the chaff sheave 7 are shaken back and forth. Along with the left and right frame plates that are driven and driven, a red pepper 10 is provided below the Glen pan 6. The recovery unit C is provided with a No. 1 recovery screw transport device 11 for recovering leaked material from the Glen sheave 9 and laterally feeding it to the horizontal side below the Glen sheave 9. A No. 2 screw conveyor 12 is disposed as a No. 2 collection device that collects the leaked material (No. 2) from No. 7 etc. and feeds it horizontally to one side.

[Transfer device for reduction]
As shown in FIG. 3 and FIG. 4, a reducing transfer device 4 for returning the second item to the handling chamber A is connected to the transfer terminal portion of the No. 2 screw conveyor 12, and this reducing transfer device 4. Thus, a reduction conveyance path for reducing and conveying the second item from the second screw conveyor 12 to the handling chamber A is configured.
The transporting device 4 for reduction is a lifting device 50 that lifts and transports the second product to the handling chamber A above the second screw conveyor 12 and the second product delivered from the end of the second screw conveyor 12. And a relay feeding device 40 that feeds the bottom of the lifting device 50 to the lower end of the lifting device 50.

The relay feeding device 40 includes a rotary blade 14 having the same number 2 as the recovery screw 18 and the drive shaft 25, and a housing case 15 that houses the rotary blade 14.
No. 2 screw conveyor on the outer surface side of the machine side wall 60 of the threshing machine corresponding to the transfer terminal portion of the No. 2 screw conveyor 12 provided with the containing case 15 and on the side surface of the containing case 15 facing this. A treated product introduction port 41 for introducing a second product from the container 12 to the housing case 15 side is provided, and a part of the housing case 15 in the radial direction is lifted from the housing case 15 side of the relay feeding device 40. A communication port 42 for sending the second item to the lifting cylinder 51 of the upper device 50 is provided.
Further, on the inner peripheral wall surface of the housing case 15, receiving blade projections 43 for removing the branch infarct are fixed at a plurality of locations in the axial direction of the rotary blade 14 and a plurality of locations in the rotation direction.

As shown in FIG. 4, the discharge unit 19 is configured at the upper end of the lifting device 50, and the transport path is configured to return the second collected material to the handling chamber A. That is, the second recovered material discharged in the housing case 15 by the rotary blade 14 having the same drive shaft 25 as the second object recovery screw 18 is introduced into the lifting device 50 through the communication port 42. The screw is pumped up to the discharge portion 19 by the reduction screw 16 built in the 50 pumping cylinders 51.
The discharge unit 19 includes a radiating blade 20 housed in the discharge unit case 22, and the radiating blade 20 is configured to rotate in conjunction with the reduction screw 16 and the drive shaft 21. The discharge part case 22 is provided with a discharge port 17 leading to the handling chamber A.
The driving force of the reduction screw 16 in the lifting device 50 is the transmission sprocket and transmission chain provided at the end of the screw shaft 25 of the second screw conveyor 12 and the bevel gear and transmission splot provided at the end of the reduction screw 16. Is transmitted from the No. 2 screw conveyor 12 side.

(Rotating blade)
The rotary blade 14 is connected to the end of the screw shaft 25 of the second screw conveyor 12 so that the blade blades 14a (four in FIG. 4) arranged in the rotational direction of the rotary blade 14 can rotate together. Configured.
As shown in FIGS. 3, 4, and 5, each wing piece 14 a is detachable from the standing protrusion 45 that is integrally welded to the screw shaft 25, and can be attached to and detached from the standing protrusion 45 via a fixing bolt 47. A feed blade acting surface S for feeding the second object is formed on the front side in the rotational direction of the upright projecting piece 45.
In the case of the structure shown in FIG. 5, the feed acting surface S rotates with respect to the axis line x with a parallel surface part S1 parallel to the axis line x of the screw shaft 25 and a ridge line L part in the figure as a boundary. It is comprised from the inclined surface part S2 which inclines to the back side in a direction.
This inclined surface portion S2 moves the second object to the feed end side (left side in FIG. 3) in the blade width direction of the rotary blade 14, that is, the end in the feed direction of the second screw conveyor 12 with rotation. It is set to have an angle that recedes by an angle α with respect to the parallel surface portion S1 so as to shift to the part side.

  The processing blade mounting body 46 is positioned on the back surface side in the rotation direction of the upright projecting piece 45, and is attached to the mounting plate portion 46 </ b> A fixed by a fixing bolt 47 in a state of being applied to the back side of the upstanding projecting piece 45. A plurality of processing blade portions 46B provided integrally with the mounting plate portion 46A so as to protrude outward in the radial direction from the protruding end of the upright protruding piece 45. Each of the plurality of processing blade portions 46B has a plate surface direction orthogonal to the parallel surface portion S1 of the upright protruding piece 45, that is, a surface orthogonal to the axial line x of the screw shaft 25, or this Between the receiving blade projections 43 for removing the branch rachis of the housing case 15 formed along the surface orthogonal to the axial line x of the screw shaft 25 in the same manner. It is configured to pass through to perform branch branch removal processing. The stationary blade projection 43 and the processing blade portion 46B constitute branch branch removing means for the grain with branch branch in the second product.

  The relay feeding device 40 configured in this manner allows the second processed material and straw scraps carried out from the sorting section B by the second screw conveyor 12 to be contained in the housing case 15 by the feeding action of the second screw conveyor 12. The second processed material introduced into the housing case 15 is rotated by the driving force of the second screw conveyor 12 and the blade pieces 14a of the rotary blades 14 and the blade receiving projections 43 fixed to the housing case 15 are used. The processed grains and straw scraps are sent out from the housing case 15 by the release action of the blades 14a of the rotary blades 14 to the lifting device 50 through the communication port 42. Supply.

[Another Embodiment of the Invention]
When the rotary blade 14 is configured, it is not limited to the shape in which the standing protrusion 45 is bent at the middle ridge line L as in the above-described embodiment, but is formed in a flat plate shape as shown in FIG. It may be.
That is, in connecting the standing protrusion 45 to the end of the screw shaft 25 of the second screw conveyor 12 so as to be integrally rotatable, the feeding action surface S constituted by the plate surface of the standing protrusion 45 and the axis of the screw shaft 25 are arranged. As shown in FIG. 6 (a), the edge of the upright protruding piece 45 on the side in contact with the outer periphery of the screw shaft 25 is set so that x is in a state having a receding angle α in plan view. As shown in FIG. 4B, the outer peripheral surface of the screw shaft 25 is formed on a curved edge and fixed by welding. According to this structure, the plate surface of the standing protrusion 45 itself forms the inclined surface portion S2.
At this time, the plurality of processing blade portions 46B of the processing blade attachment body 46 are provided along a plane orthogonal to the axial line x of the screw shaft 25. However, the processing blade portions 46B and the upright protruding pieces 45 are different from each other. The plurality of processing blade portions 46B may be attached detachably via a mounting plate portion 46A and a fixing bolt, and each of the processing blade portions 46B is directly welded to the standing protrusion 45. It may be fixed.
That is, in the present invention, the attachment method of the blade piece 14 a of the rotary blade 14 and the screw shaft 25 of the second screw conveyor 12 is not a problem, and the blade piece 14 a of the rotary blade 14 is not connected to the screw shaft 25 of the second screw conveyor 12. Any device can be used as long as it can be equipped with the feeding action surface S inclined with respect to the axis x.

Longitudinal side view showing the threshing sorter structure Longitudinal front view showing the threshing selector Longitudinal rear view showing the transport device 4 for reduction Longitudinal side view showing the transfer device 4 for reduction Perspective view showing the rotating blade part The top view and side view which show another form of implementation of invention

Explanation of symbols

A Handling room 1 Threshing device 4 Conveying device for reduction 12 No. 2 screw conveyor 14 Rotating blade 14a Wing piece 15 Housing case 25 Screw shaft 40 Relay feeding device 50 Lifting device

Claims (2)

A second recovery device for recovering the second thing, and a reduction transport device for returning the recovered second thing to the handling chamber A, and the handling device for the reduction above the second recovery device. A threshing device comprising a lifting device that lifts and conveys the second thing to the bottom, and a relay feeding device that feeds the second thing delivered from the end of the second collecting device to the lower end of the lifting device. ,
The relay feeding device is constituted by a rotating blade integrally provided on the screw shaft of the second recovery device, and a housing case that internally houses the rotating blade and has a communication port to the lifting device side,
A processing blade is provided on the outer peripheral side end of the rotary blade, and a processing protrusion is fixed to the inner peripheral surface of the housing case. The branch blade in the second object is formed by the fixed receiving blade protrusion and the processing blade. Constituting branch branch removal means to impart branch branch removal action on the attached grain,
The rotating blade is rotated so that the feeding action surface of the rotating blade with respect to the second thing is directed to the lower side in the spiral feeding direction by the screw shaft of the second collecting device. Threshing device inclined with respect to the axis.   The threshing device according to claim 1, wherein the processing blade portion of the rotary blade and the receiving blade protrusion fixed to the housing case are formed along a plane orthogonal to the rotational axis of the rotary blade.

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