JPS5824084B2 - Waste straw quantitative discharge device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a structure in which a straw receiving device and a support member that elastically supports the device from below with an elastic device are mounted on a pivot shaft provided at a fixed portion. The link members pivotally connected to each other and pivotally connected to the supporting member and the fixed part are connected to each other so as to be relatively rotatable, and the straw receiving surface of the straw receiving device is in a substantially horizontal state. In the attitude of the waste straw receiver, each pivot point of each link member with respect to the support member and the fixed part and the pivot point of each link member with respect to the support member are located at the center of the pivot point of the link member with respect to the support member. The mounting positions of each link member are set so that they are aligned approximately in a straight line, and the waste straw receiver of the support member is bent at the waist to prevent downward swinging from the tool supporting position by a tensioning action. It constitutes a link mechanism, and furthermore, as the weight of the straw receiving straw increases, the straw receiving device has a joint that presses the bending link mechanism by rotating around the pivot axis of the tool to release the tensioning action. The piece is provided on the straw receiving tool, and a spring that elastically returns the straw receiving tool to the straw receiving position in the straw removing posture is stretched across the straw receiving tool and the fixed part. This invention relates to a device for quantitatively discharging waste straw.

In this device for quantitatively discharging waste straw, in order to adjust the amount of focused straw per turn, in the past, the waste straw receiver applied the biasing force of the spring that elastically supports the tool to the spiral movement of a bolt, etc. A means of adjustment was adopted, but in this case,
Since it is a rotational adjustment, there is a problem in that when the operation is performed by more than one rotation, it is difficult to recognize the amount of rotation and it is difficult to make an appropriate adjustment.

The present invention has been made with the above-mentioned circumstances in mind, and
The purpose is to enable the adjustment of the amount of bundled straw per one time to be carried out appropriately in an easily recognizable manner.

Embodiments of the present invention will be described in detail below with reference to the drawings.

The figure shows a waste straw processing device that is connected to the rear of a threshing device 1 equipped with a combine harvester, and includes a straw removal cutter 4 equipped with a shredding mechanism 3 inside a cutter case 2, and a straw processing device that is installed on the back of the cutter case 2. A waste straw dropper 5 as a waste straw quantitative discharge device is installed, and after being handled and processed by the threshing device 1, the waste straw is fed into the cutter case 2 by the waste straw chain 6. It is configured to be able to be selectively switched between a state in which the waste straw is supplied to the shredding mechanism 3 for shredding processing, and a state in which the waste straw is supplied to the dropper 5 and is focused and discharged.

That is, at the upper part of the shredding mechanism 3 and at the end of the straw removal chain 6, there is a downwardly swung posture in which the waste straw discharged from the straw removal chain 6 is guided to the shredding mechanism 3, and a position where the straw is swung downward to guide the waste straw discharged from the straw removal chain 6 to the shredding mechanism 3. A straw removal guide 8 is provided which can be freely switched to an upwardly swung position to guide the straw to a straw removal lower formed on the back wall of the cutter case 2, and the straw removal lower is provided with a straw removal guide 8 in a position that closes the straw removal lower. A cover 9 is provided that can be freely switched between a position in which the outlet I is opened by swinging upward, and a position in which the outlet I is opened.

Then, by placing the straw removal guide 8 in a downward swinging position and placing the cover 9 in a closed position, a state is created in which the waste straw discharged from the straw removal chain 6 is guided to the shredding mechanism 3 for processing. Also, by placing the straw removal guide 8 in an upward swinging position and placing the cover 9 in an open position, the removal straw can be taken out of the cutter case 2 and the straw removal dropper 5 can be placed along the back side of the cutter case 2. The system is configured so that a state that leads to appears.

Next, the straw dropper 5 will be described in detail with reference to FIGS. 3 to 5.

That is, the shaft 11 extends across a pair of fixing members (fixing parts) IDa and 10aK that are bolted to the cutter case 2.
is horizontally supported so as to be rotatable around an axis, and a plate-shaped waste straw receiver has a fixture 12 fixed to this shaft 11, and a first rotating member (a fixed part during the operation of dispensing a fixed amount of waste straw). 13 and a second rotating member (supporting member) 14 are rotatably supported.

An arm 17 formed by bending a bar material is connected to the first rotating member 13, and an engagement pin 18 connected to the arm 17 is located on the right side of the fixed members 10a and 10b. Three connecting holes 1 formed in the fixing member IQa
9a, 19b.

19c, and by this engagement action, the rotational position of the first rotational member 13 is determined in three stages.

A first spring 20 is installed between the arm 17 and the receiver 12, and the receiver is configured to bias the tool 12 upward. The upper swing limit of the receiver 12 is positioned by the action of the receiver 12 coming into contact with the receiver.

One end of a Y-shaped first link 15 is pivotally connected to the first pivot member 13 (hereinafter, this pivot point will be referred to as a first pivot point P1).

), a C-shaped second link 16 is attached to the second rotation member 14.
(hereinafter, this pivot point will be referred to as the second pivot point P2), and the other end of the first link 15 and the second link 1
6 (hereinafter, this pivot point will be referred to as the third pivot point P3).

A second spring 21 is installed between the first link 15 and the straw receiving tool 12 to bias the first link 15 toward the receiving tool 12. ,
A contact piece 22 for positioning the swing limit of the first link 15 is attached, and in this way, the first link 1
5, the first, second and third pivot points P1. P2. P3 is located on a straight line as viewed in the axial direction of the shaft 11, or the third pivot point P3 is located in line with the first and second pivot points P1. The receiver is set to be located closer to the tip of the tool 12 than the line connecting P2.

The receiver extends between the tool 12 and the second rotating member 14,
Position the limit to the side between the relative distance of both 12.14,
In addition, the bolt 2 allows movement of both 12 and 14 to the adjacent side.
3 is penetrated and fixed, and a third spring bullet 24 is interposed to urge both 12 and 14 away from each other.

A spring 25 is interposed between the fixed member 10a and the first rotating member 13 to elastically bias the engaging pin 18 toward the connecting hole 19a.

According to the above structure, the straw removal receiver pulls the tool 12 to release the engagement between the pin 18 and the connecting hole 19a, and then the entire straw removal dropper is swung up and down to obtain the desired result. If the pins 18 are engaged with the predetermined connecting holes 19a in the posture described below, the following state will occur.

That is, the pin 18 is inserted into the connecting hole 19b at an intermediate position between the upper and lower sides.
When the pin 18 is engaged with the upper connecting hole 19a, the state in which the waste straw supplied as described above is focused and discharged is brought about.
When engaged, the entire waste straw dropper is stored in the body side, as shown by the imaginary line in Fig. 2, and
When the pin 18 is engaged with the lower connecting hole 19c, a state is created in which the receiving straw, which has been swung slightly downward and is supplied as described above, sequentially discharges along the tool 22. Ru.

In the focused discharge state, the receiver 12 is swung up and down as follows.

That is, as described above, the first, second, and third pivot points P1. P2
．． A state in which P3 is located on a straight line, or the third pivot point P3
is from the line connecting the first and second pivot points P□ and P2.
2, the second rotating member 14
However, the receiver consisting of the first and second links 15 and 15 is prevented from swinging downward by the tensioning action of the tool support mechanism, and as a result, the receiver and the tool 12 are The waste straw receiver is supported in a posture with respect to the moving member 14 via a third spring 24.

Next, when a predetermined amount of waste straw is collected on the receiver 12 and the weight causes the receiver 12 to swing slightly downward against the third spring 24, the contact piece 22 acts as an operated piece. As a result, the first, second, and third pivot points P 1 sP2 . P3 deviates from the straight line and the second rotating member 14 is allowed to swing downward, and as shown in FIG. emit.

Then, when the discharge of the waste straw is completed, the receiving tool 12 is swung back to the posture by the first spring 20, and the second spring 210 causes the receiving tool 12 to swing back to the first position by the action of the second spring 210.
The link 15 is returned to its predetermined position.

The first spring 24 always urges the tool 12 upward, but as described above, the receiver is set to have a weak urging force that is sufficient to swing the tool 12 back. ,
The receiver is designed not to provide much resistance to the downward swinging of the tool 12.

Further, in this focused discharge state, the structure is as described below in order to adjust the amount of focused straw per one time.

That is, as shown in FIG. 6, the abutment piece 22 attached to the tool 12 slides in the far and near directions with respect to the swing axis X of the tool 12 (in other words, the axis of the shaft 11). It is configured to be movably engaged and fixed at a predetermined position by tightening a nut 26.

Through this slide adjustment, the receiver increases or decreases the amount of displacement of the contact piece 22 relative to the amount of unit angular displacement of the tool 12, thereby changing the timing at which the second link 16 is rotated by a desired amount. It is configured to adjust the amount of focused straw.

Further, the straw receiving tool 12 is provided with a scale G for checking the amount of displacement of the contact piece 22.

Note that adjusting the amount of bundle by sliding the abutting piece 22 can also be done by changing the distance between the abutting piece 22 and the operated piece 15.

In summary, the present invention provides the above-mentioned structure of the straw quantitative discharge device, in which the contact piece is configured to be slidable in a direction different from the contact direction, and by this slide adjustment, the support function until the support function is released is adjusted. is characterized in that it is configured to adjust the amount of rocking displacement of the tool.

In other words, by adjusting the slide of the abutment piece, the amount of straw collected per one time is adjusted, so the position of the abutment piece can be easily recognized visually, and an accurate straw receptacle is the limit of the tool. It has become possible to adjust the amount of bundled straw by making changes to the swinging load.

[Brief explanation of the drawing]

The drawings show an embodiment of the waste straw quantitative discharge device according to the present invention, and FIG. 1 is a plan view of the waste straw processing device, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, FIGS. The figure is a side view showing the mounting structure of the straw receptacle, and Figure 5 is a cross-sectional plan view of the same part.
FIG. 6 is a sectional view taken along the line VI-VI in FIG. 3. 11... Pivot shaft, 12... Straw removal holder, 14... Support member, 15, 16...
・Link member, 20° 24... Bullet, 22...
...Contact piece, Pl, P2. P3... Pivotal point.

Claims (1)

[Claims] 1 The waste straw receiver is the tool 12, and this waste straw receiver is the tool 12 and the ammunition 2.
4 and a support member 14 that elastically supports from below,
It is pivotably attached to a pivot shaft 11 provided in a fixed part, and
Each link member 1 is pivotally connected to the support member 14 and the fixed part.
5.16 are connected to each other so as to be relatively rotatable, and each link member 15 is connected to the support member 14 and the fixing part in the posture in which the receiving surface of the tool 12 of the waste straw receiver is in a substantially horizontal state. , 16 pivot points P1. P2 and the pivot point P3 of each of the link members 15 and 16 are arranged in a substantially straight line with the pivot point P2 of the link member 16 relative to the support member 14 located in the center. The mounting positions of the members 15 and 16 are set, and the waste straw receiver of the support member 14 constitutes a bending link mechanism for preventing downward swinging from the tool supporting position by a tensioning action. As the weight of the retaining straw increases, the straw receptacle is rotated around the pivot shaft 11 of the tool 12 to press the bending link mechanism and release the tensioning action.
2 is provided on the tool 12, and the straw receiver is provided with an elastic machine 20 that elastically returns the straw receiver in the straw removing position to the above-mentioned straw receptacle position. In the device for dispensing a fixed amount of waste straw that is tensioned, the abutting piece 22 is configured to be slidable in a direction different from the abutting direction, and by this sliding adjustment, the support until the tensioning action is released is controlled by the tool 1.
2. A quantitative discharge device for waste straw, which is configured to adjust the amount of oscillating displacement of step 2.