JP2003304729A - Waste culm guiding apparatus of waste culm cutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the clogging of waste culms with a changeover guide plate for changing over the waste culm transportation from the side of a cutter to the side of a dropper in a waste culm guiding apparatus of a waste culm cutter of a combine harvester. <P>SOLUTION: The waste culm guiding apparatus is installed in the waste culm cutter equipped with the changeover guide plate 2 for receiving the waste culms discharged and fed to a part of a waste grain culm feed port 1 and changing over and guiding the waste culms to the side A of the cutter on the lower side and the side B of the dropper on the rear side. In the waste culm cutter, the waste culm guiding apparatus is composed so that the changeover guide plate 2 is provided with waste culm guides 3 for guiding the waste culms to the side A of the cutter and the lower end of the guide posture to the side A of the cutter is installed so as to be opened C or openable E to the rear by pressure of the waste culms. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a culm guide device for a culm cutter, and supplies and guides threshed culms that have been threshed by a threshing device by switching them to a culm cutter and a dropper. .

[0002]

2. Description of the Related Art In order to switch and feed threshed culm of combine harvesters to a culm cutter and a dropper, a switching guide plate is provided at the culm supply port on the upper part of the culm cutter, or a switching guide plate. There is known a technique of providing a spring guide for guiding the culm on the lower side.

[0003]

In the above-mentioned configuration in which the culm guide made of the spring material is provided below the switching guide plate, the culm guided to the cutter side is disposed on the lower surface of the switching guide plate and the culm. It tends to be caught in the guide and stagnant, or it becomes a resistance to the culm guide, and when removing the culms that are clogged in these, the culm guide is deformed and the risk of maintenance operation is increased.

[0004]

According to a first aspect of the present invention, a guide is provided for switching to a lower cutter side A and a rear dropper side B upon receiving culms discharged to a culm supply port 1 part. In the culm cutter provided with the switching guide plate 2, the switching guide plate 2 guides the culms to the cutter side A.
And the lower end portion of the guide posture toward the cutter side A is provided so that it can be opened C to E rearward by the pressure of the culm.

The threshed culm that has been threshed by the threshing device in the combine operation is discharged rearward by the culm device and conveyed to a part of the supply port of the culm cutter. When guiding and supplying this culm to the cutter side A, the culm is guided to the lower side of the switching guide plate 2 by rotating the switching guide plate 2 so as to block it above the culm supply port 1. Guided culmination guide 3
Is supplied to the cutter side A by the guide. Also, when guiding and supplying the culm to the dropper side B behind the culm cutter,
By rotating the switching guide plate 2 to the lower side of the culvert supply port 1, the culms are discharged immediately above the upper side of the switching guide plate 2. When the culm is clogged or stagnates in such a state where the culm is supplied to the cutter side A, the culm guide 3 or the switching guide plate 2 is pushed upward to open C, E, and the clogged culm is pushed. Relieve pressure. At this time, in the mode in which the switching guide plate 2 is wide open to be in the open C state, a part of the discharged culm can be discharged from the open C portion to the rear side. Further, in the mode in which the switching guide plate 2 is opened small to be in the opening E state, even if the blocked culm cannot be discharged from the opening E portion, the switching guide plate 2
The compression pressure of the culms that have been clogged by the upward movement is relaxed, and the pressing force on the cutter cutting portion is relaxed to improve the culms cutting performance.

According to a second aspect of the present invention, the switching guide plate 2 is provided so as to be engageable with and disengageable from the switching arm 4 that is switched and rotated between the cutter side A and the dropper side B by the locking tool 5. The locking tool 5 is provided so that it can be engaged and disengaged, and the engagement by the locking tool 5 is disengaged so that the switching guide plate 2 can be collapsed D toward the rear side. The switching guide plate 2 is switched between the cutter side A and the dropper side B by rotating the switching arm 4. At this time, the switching arm 4 and the switching guide plate 2 are integrally engaged by the locking tool 5. Therefore, the switching guide plate 2 is integrally switched and rotated by the rotating operation of the switching arm 4. Release the engagement of the switching guide plate 2 by this locking tool 5,
The switching guide plate 2 can be laid down D backward.

According to a third aspect of the present invention, an opening C of the switching guide plate 2 is provided between the switching arm 4 and the switching guide plate 2.
And a guide plate sensor 6 for detecting the fallen D state. Switch guide plate 2 to cutter side A
If the drainage is clogged during the switching to, the lower end of the switching guide plate 2 is moved upward by the pressure of the jammed drainage to open C or E and press the jammed drainage. The pressure can be released, and the culms can be released to the rear from this open C portion. Further, by laying the switching guide plate 2 rearward D, the top of the culm feed port 1 is opened and the culm guide 3 of the switching guide plate 2 is opened to the rear. In this way, when the switching guide plate 2 is opened C, opening E, or lying down D, the distance between the switching arm 4 and the switching arm 4 is changed, so that the guide plate sensor between the switching arm 4 and the switching guide plate 2 is changed. 6 can be turned on and off to detect the open C to open E state, the fallen D state, and the like.

[0008]

According to the invention described in claim 1, the switching guide plate 2 is provided.
When the culm is clogged or stagnates and the culm pressure rises when the culm is guided to be supplied to the cutter side A by switching the, the rear end of the switching guide plate 2 is pushed upward by the culm pressure. It can be opened to relieve the compression force of the clogged culm, loosen the pressing force on the cutter cutting part and maintain the cutting action of the culm, to prevent damage to the components and to ensure safety. You can In particular, in the form in which the switching guide plate 2 is wide open to be in the open C state, a part of the clogged culm can be released to the rear side, which is more effective.

According to a second aspect of the present invention, the locking tool 5 is engaged and disengaged between the switching arm 4 and the switching guide plate 2 to switch between the cutter side A and the dropper side B.
Since it is possible to perform the fall D of the switching guide plate 2,
When the culm is clogged, the switching guide plate 2 can be opened C to E as described above, and can be tilted backward D to remove the clogged culm easily and safely. Moreover, since the locking tool 5 is engaged and disengaged, the structure and operation can be simplified.

The invention according to claim 3 is the switching guide plate 2
When opening C to E, the lower end is pushed open upward, and when falling D, the upper end is opened and rotated to the rear side. It is operated with respect to the arm 4, and is detected by the guide plate sensor 6 by this operation. Therefore, the guide plate sensor 6 is commonly used for the detection of the opening C or the opening E and the detection of the fall D, and the configuration is simple. Can be converted.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. First, based on FIGS. 1 to 7, the culm cutter 7 is attached to the rear end of the culm device 9 of the combine threshing device 8. The cutter frame 15 has a box shape, and the disc blade 12 and the scraping plate 13 are arranged on the cutter shafts 10 and 11 in the lateral direction.
Short cuts are made by supplying culms along both cutter shafts 10 and 11, and the cut straws are dropped while being diffused laterally by a lower diffusion spiral 14. The culm device 9 is composed of a pair of left and right culm chains, and is provided in the culm chamber 16 at the rear part of the threshing device 8 so as to culminate obliquely from the front stock root side to the rear tip part side. Reference numeral 17 denotes a feed chain provided along the handle portion of the threshing chamber, which holds the cut culm and conveys it while threshing. This threshed culm is inherited by the culm device 9, conveyed to the rear tip side, and supplied to the upper supply port 1 of the cutter 7. 20
Is a combine vehicle body having a crawler 21, and the harvesting device 22 mounted with the threshing device 8 on the upper side and supported on the front side
The grain can be threshed by receiving and feeding the grain culms harvested in. 23
Is a driver's seat, 24 is a Glen tank, and 25 is a grain auger.

At the upper end supply port 1 of the culm cutter 7,
A switching guide plate 2 which is rotated up and down is provided around the support shaft portion 26 at the rear end, and the supply port 1 is shut off by rotating the switching guide plate 2 upward (FIG. 2). Thus, the culms conveyed from the culm device 9 can be guided to the lower cutter side A (indicated by the arrow A). Further, by turning the switching guide plate 2 downward so that the supply port 1 is closed, the culms conveyed from the culm device 9 are passed over the switching guide plate 2 to the rear dropper side. B (denoted by arrow B) can be discharged. Such a switching operation of the switching guide plate 2 is performed by a rotating operation of an operation lever 27 provided outside the cutter frame 15.

The switching guide plate 2 is provided with a culm guide 3 made of a spring material on the lower side surface thereof, and the culm to be switched and guided to the cutter side A is brought into sliding contact with the disc blade of the cutter 7. Supply guide to the cutting section between 12. The cutter frame 1
Both end portions of a support shaft portion 26 having left and right guide plate supporting arms 29 are rotatably supported by bearing portions 28 provided on both left and right sides of the shaft 5. An arm shaft 30 having a switching arm 4 is provided between the support shaft portion 26 and the bearing portion 28 on the tip side, and the arm shaft 30 is borne by the bearing portion 28 and the support shaft portion 26 This is a form in which the one end portion 31 is fitted to the arm shaft 30 and is received. The operation lever 27 can switch and rotate by fitting the socket 32 into the square shaft end 33 of the arm shaft 30. The switching operation position of the operation lever 27 is fixed to the cutter frame 15 by a clip mechanism (not shown).

The switching guide plate 2 is attached to a guide plate shaft 34 which is rotatably supported between the front end portions of the left and right guide plate supporting arms 29, and a rear end edge portion 35 side is rotatable around the guide plate shaft 34. It is in the form. A clip spring 36 is provided near the inner rear end edge portion 35 of the switching guide plate 2, and the support shaft portion 26 can be clamped between the clip spring 36 and the rear end edge portion 35 with an appropriate pressure. 2 can be maintained along the switching arm 4. The switching guide plate 2 is rotated around the guide plate shaft 34 and pushed open against the holding force of the clip spring 36 due to the pressing force of the culm culled by the supply on the cutter side A (FIG. 3). , The opening E state or the opening C state.

Between the guide plate support arm 29 and the switching arm 4 in order to operate the switching guide plate 2 in the switching state (FIGS. 2 and 3) and the fallen D state (FIGS. 4 and 5). To
A locking tool 5 is provided which can integrally connect or release these. The switching arm 4 has a U-shaped locking tool 5 from the outside.
The tip 39 is fitted and the spring 37 springs it. The tip portion 39 of the locking tool 5 is engaged with the pin hole 38 of the guide plate support arm 29 that supports the switching guide plate 2, so that the guide plate support arm 29 and the switching arm 4 can be integrated. By pulling this locking tool 5 outward against the spring 37, it is removed from the pin hole 38 of the guide plate support arm 29,
The switching guide plate 2 and the guide plate support arm 29 can be rotated around the support shaft portion 26 (FIGS. 4 and 5).

The culm dropper 42 is mounted on the rear side of the cutter frame 15. The dropper shaft 41 is rotated around the dropper shaft 41 against the spring force and is discharged along the upper side of the switching guide plate 2 which is switched to the dropper side B, and receives and accumulates the culm, and every fixed accumulated weight. It is ejected by turning and turning against the spring force. Further, instead of the culm dropper 42 which discharges such accumulated culm, the switching guide plate 2 is simply used.
It is also possible to adopt a configuration in which the culms are discharged and dropped from the upper end or the rear end of the culm device 9 directly on the traveling ground surface of the combine without being accumulated.

With the engagement tool 5 engaged with the guide plate support arm 29, the operation lever 27 is rotated A1, B1 to move the switching guide plate 2 around the support shaft portion 26 on the cutter side A2.
And the dropper side B2 can be rotated and switched (FIG. 2).
At the time of switching to the cutter side A2, the switching guide plate 2 is in a state in which the front upper end portion is pivotally supported by the guide plate shaft 34 and the lower end portion is fitted and held by the support shaft portion 26 by the clip spring 36.
In this state, the culm guide 3 approaches the rotating peripheral portion of the disc blade 12, the scraping plate 13 or the like to press and guide the culm to the cutting portion side, so that the culm cutting action can be accurately performed. it can. When the amount of culm supplied is increased during the culm cutting action and the culms are clogged on the cutter side A, the culm of the culms pushes the culm guide 3 and finally the switching guide. Since the plate 2 is pushed, the holding of the clip spring 36 with respect to the support shaft portion 26 is released, and the switching guide plate 2 is rotated upward together with the culm guide 3 around the guide plate shaft 34 (FIG. 3). As a result, an opening E is formed between the support shaft 26 and the rear end edge portion 35 of the switching guide plate 2, or a large opening C is formed.
Then, the culms that have been jammed on the cutter side A are discharged from the open C portion onto the culm dropper 42 on the rear side. Therefore, the culms are not forced to be compressed against the lower surface of the switching guide plate 2 or the cut portion.

In this way, at the time of removing the clogged culm due to the clogging of the culm, maintenance, such as cleaning and inspection, the locking member 5 is operated to move the tip 39 to the pin of the guide plate support arm 29. Pull out from the hole 38 and switch guide plate 2
Together with the support arm 29, it is caused to fall backward D around the support shaft portion 26 (FIGS. 4 and 5). In this state, the upper portion of the supply port 1 is widely opened, and the switching guide plate 2 can be further expanded F around the guide plate shaft 34. Further, since the spring guide 3 is located on the rear side of the cutter frame 15, it is easy to remove and clean the clogging drainage culms of the supply port 1 and the cutting part, and
It is possible to easily and safely remove the culm pushed into the spring guide 3 and the like, and the spring guide 3 is not forcibly bent.

Next, referring mainly to FIGS. 8 and 9, the difference from the above example is that the limit for detecting the opening of the switching guide plate 2 between the switching arm 4 and the switching guide plate 2. A guide plate sensor 6 composed of a switch is provided.
The guide plate sensor 6 is attached near the support shaft 26 side of the switching arm 4, and is turned off and on by opening and closing the switching guide plate 2 with respect to the switching arm 4. Switching guide plate 2
However, as described above, the trailing edge 3 is pushed by the clogging and the culms.
5 is opened to the rear upper part, and this rear end edge portion 35
The guide plate sensor 6 is turned off in a state in which the tip side of the guide plate shaft 34 is tilted backward around the support shaft portion 26 along the direction D and rotated.
Detected by. On the contrary, these switching guide plates 2
The guide plate sensor 6 is turned on when is in a state along the switching arm 4 without opening E and falling D.

The guide plate sensor 6 is interlocked so as to stop the engine of the combine by detecting the opening E through the fallen D state of the switching guide plate 2 to ensure the safety of the operation of work. . Further, instead of the engine stop interlocking, it is also possible to interlock so as to transmit an alarm device. In the drawings, the structure of the culm guide is omitted. Reference numeral 44 is a mounting portion for the back surface of the switching guide plate 2, and has a boss portion 45 that is rotatably fitted to the guide plate shaft 34. Four
Reference numeral 6 denotes a mounting portion of each clip spring 36 on the back surface of the switching guide plate 2. The guide plate sensor 6 has an actuator 47, and when the actuator 47 is brought into contact with the switching guide plate 2, the contacts of the limit switch come into contact with each other.

A guide plate flange 43 is projected downward at one end of the switching guide plate 2, and the locking tool 5 is inserted into the flange 43 through the pin hole 38 of the guide plate support arm 29. The pin elongated hole 40 is formed. Therefore, in the switching guide plate 2, even if the tip 39 of the locking tool 5 is inserted into the pin slot 40, the pin slot 40 is provided around the guide plate shaft 34 at the upper end with respect to the guide plate support arm 29. It is a form that can be rotated in the area of. When a pressing force is generated due to clogging of the cutter cutting portion, the opening can be opened. Further, when the locking tool 5 is removed from the pin elongated hole 40, the switching guide plate 2 can be largely rotated around the guide plate shaft 34 by the guide plate support arm 29 to be in the open C state. Further, when the locking tool 5 is also removed from the pin hole 38 of the guide plate support arm 29,
The guide plate support arm 29 can be rotated around the support shaft portion 26 to be in the lying D state.

[Brief description of drawings]

FIG. 1 is a perspective view of a culm cutter.

FIG. 2 is a right side view showing the operation.

FIG. 3 is a right side view showing a state in which the waste culms are clogged.

FIG. 4 is a right side view showing the lying state.

FIG. 5 is a right side view showing the operating state thereof.

FIG. 6 is a plan view of the culm cutter part of the combine.

FIG. 7 is a side view thereof.

FIG. 8 is an exploded perspective view thereof.

FIG. 9 is a side view showing the operating state thereof.

[Explanation of symbols]

1 supply port 2 Switching guide plate 3 Evacuation guide 4 switching arm 5 locking tool 6 Guide plate sensor

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[Procedure amendment]

[Submission date] April 17, 2002 (2002.4.1)
7)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 2

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

According to a second aspect of the present invention, the switching guide plate 2 is provided so as to be engageable with and disengageable from the switching arm 4 that is switched and rotated between the cutter side A and the dropper side B by a locking tool 5. The switching guide plate 2 is provided so that the switching guide plate 2 can be laid down D to the rear side by disengagement from the locking tool 5.
The switching guide plate 2 is switched between the cutter side A and the dropper side B by rotating the switching arm 4. At this time, the switching arm 4 is locked by the locking tool 5.
And the switching guide plate 2 are integrally engaged. Therefore, the switching guide plate 2 is integrally switched and rotated by the rotating operation of the switching arm 4. The engagement of the switching guide plate 2 by the locking tool 5 can be released, and the switching guide plate 2 can be laid down D to the rear.

Claims (3)

[Claims] 1. A switching guide plate (2) which guides switching between a lower cutter side (A) and a rear dropper side (B) by receiving the culm discharged to the culm supply port (1). In the culm cutter provided with this, the switching guide plate (2) has a culm guide (3) for guiding the culm to the cutter side (A), and also has a lower end portion of a guiding posture to the cutter side (A). An culvert guide device, which is provided so that it can be opened (C) or opened (E) rearward by the pressure of the culm. 2. The switching guide plate (2) engages and disengages with a locking tool (5) with respect to a switching arm (4) which is rotated and switched between a cutter side (A) and a dropper side (B). It is provided so that it can be engaged and disengaged with this locking tool (5), and the switching guide plate (2) can be collapsed (D) to the rear side by disengaging the locking tool (5). The culm guide device of the culm cutter according to claim 1, wherein 3. The switching arm (4) and the switching guide plate (2).
The guide plate sensor (6) for detecting the open (C) and fall (D) states of the switching guide plate (2) is provided between the guide plate sensor and the switch guide plate (2). Scrap guide device for culm cutter.