JP3083426B2 - Stopper mechanism of straw processing device in combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stopper mechanism of a straw processing device including a straw cutter and a knotter in a combine.

[0002]

2. Description of the Related Art Conventionally, as a waste processing apparatus for a self-contained combine, a horizontally elongated box-shaped waste straw cutter is provided below a waste transfer section at a rear portion of a combine body so that one end can be opened and closed in a horizontal direction. And a notch for binding a straw in the form of a horizontally elongated box at the rear of the cutter. There is known a mechanism that selectively supplies the conveyed straw to either a cutter or a knotter.

[0003] Opening and closing of the cutter and notter simplifies assembly into a combine body and its mechanism.
This is in consideration of the convenience of maintenance such as internal cleaning and replacement of parts and the ease of replacement as an option, but in order to easily perform maintenance work etc. with the cutter or notter open, Even in the "open" state, it is necessary to lock, and it is customary to provide the locking stoppers between the machine frame side and the cutter or the cutter and the notter, respectively.

[0004]

However, in the above-mentioned conventional stopper mechanism, when the cutter is opened with the notter locked "open" to the cutter side, the knotter is not operated, regardless of whether the notter is opened and locked alone. There is a danger that the notch, the frame part or the frying cylinder may be deformed or damaged, by contacting the machine frame on the side of the rear end and the frying cylinder that lifts and transports the paddy upward. In order to avoid this, care must be taken in opening and closing the cutter, or an intermediate operation such as opening the cutter after changing the position of the notter safely is required, and there are problems in efficiency and safety.

[0005]

According to the mechanism of the present invention for solving the above-mentioned problems, a cutter 7 and a notter 8 for processing waste are provided at the rear part of the body 1 by opening and closing in a horizontal direction at the end. Rotating the cutter 7 and the notter stopper 33 between the machine frame 9 and the notter frame 22 with a stopper 33 interposed between the body frame 9 and the notter frame 22 to lock the notter 8 in an open state. Both the fulcrums are provided on the body frame 9 side, and a link mechanism having at least four fulcrums composed of a knotter rotation fulcrum on the cutter 7 side and a stopper fulcrum on the knotter 8 side is characterized.

[0006]

The cutter 7 has one end pivotally supported by the machine body frame 9 and is rotated in the horizontal direction to be opened and closed. The notter 8 is pivotally supported by the cutter 7 at one end in the same direction to be opened and closed.
At this time, the notter 8 is locked by the stopper 33 and is locked to the body frame 9 in the open state. When the cutter 7 is further opened in this state, the stopper 33 locks the notter 8 to the next locked state. By swinging, the notter 8 safely guides and locks without touching the other. By these operations, the turning fulcrum of the cutter 7 and the notter 8
The rotation fulcrum of the stopper 33 is a fixed fulcrum on the machine frame 9 side, and the rotation fulcrum of the notter 8 and the stopper engagement fulcrum are movable fulcrum.

[0007]

1 to 3 show a straw processing unit at the rear of a combine, and FIG. 1 is a plan view of a main part of the straw processing unit.
At the rear end of the combine body 1 composed of a threshing section, etc., a straw conveying section 3 is provided from the upper left side of the fuselage to hold the threshed straw 2 and convey it backwards with a chain. Below, a cutter 7 for cutting the straw and a knotter 8 for binding the straw, which are provided in the horizontally long box-shaped cases 4 and 6, are sequentially connected. Since the cutter 7 and the notter 8 are both well-known structures and functions, description thereof will be omitted.

The rear end of a horizontal feed spiral 11 formed of a spirally inserted pipe, which is supported by the body frame 9 and feeds the paddy from the threshing unit later, extends to the lower side of the right end of the cutter 7. At the rear end, a fryer cylinder 12 that lifts up the fed paddy and sends it out to a discharge spiral (not shown) is provided upright.

The cutter 7 has a bracket 14 projecting from a vertical beam 13 at the right end of a cutter frame 15.
Is mounted on a support plate 17 provided on a support 16 on the side of the body frame 9 so as to be rotatably supported by a pivot (pin 18), and the cutter 7 is opened and closed at the left end with respect to the body 1 by the above support mechanism. It is configured to be capable of being engaged and disengaged (not shown) on the side of the body frame 9 at the left end even in the “closed” state.
It is a mechanism that is locked so that it can be disengaged and unlocked. 1
Reference numerals 9 and 21 denote cutter desks that are supported in the cutter case 4.

[0010] The notter 8 is connected to the back of the cutter frame 15 and the notter frame 2 opposite to the cutter 7.
The bracket 2 is mounted so as to be horizontally rotatable (openable and closable) by pins 26 by brackets 23 and 24 protruding from the right end of the front surface of the front panel 2. Is done.

On the other hand, a vertical bracket 2
7 is attached to the outer end of the bracket 27,
Angled cross section of a fryer cylinder cover 29 via a hinge 28
The cover 29 is configured to be openable and closable horizontally and the cover 29 is normally closed so as to cover the back surface and the right outer surface of the fryer 12. A stopper 33 for a notter lock described later is provided. When used, a guide hole or a notch in the left and right horizontal direction may be provided on the back surface so as to open to the right outside so as not to hinder the connection of the stopper 33, or to allow the stopper to swing.

An engagement plate 32 having an angled cross section in plan view is removably attached to the left inside of the rear surface of the bracket 27. A rear end of the engagement plate 32 has a proximal end of a rod-shaped stopper 33. An engaging hole 36 into which the hook 34 of the part is loosely fitted so as to be able to swing horizontally is formed. The hook 34 inserted into the engaging hole 36 is prevented from falling off by a pin 37.

Further, a downward hook 38 is also provided at the rear end of the stopper 33 so that the hook 38 can be inserted into and removed from the engaging hole 41 of a locking plate 39 projecting from the right side of the notter 8 from above. The notter 8 is connected to the body frame 9 by inserting and locking the hooks 34 and 38 at both ends of the stopper 33 into the engagement holes 36 and 41 with the notter 8 opened.

Then, by connecting as described above,
As shown by the solid line in FIG. 2, when the cutter 7 is in the closed state, the notter 8 is also locked to the body frame 9 and the cutter 7 in the state shown by the solid line in the same figure (stopper position A). When opened and locked, the notter 8 is also locked at the position of the stopper B as shown by the imaginary line in FIG. Not only that, when the cutter 7 is opened while the notter 8 is open with respect to the cutter 7, the stopper 33 is opened.
Is smoothly guided along the rotation trajectory of the hook 38, so that the notter 8 does not come into contact with the fryer cylinder 12 or the like to be damaged or deformed.

When the cutter 7 is opened to a predetermined position, as shown in FIG. 2, the bracket 14 on the side of the cutter frame 15 comes into contact with the inner periphery of the column 16 having an angled cross section and functions as a stopper. Cutter frame 1
A connection lock is performed between the frame 5 and the body frame 9 by another stopper (not shown). 42 is the cutter 7
When the cutter 7 and the knotter 8 are opened, the chain 42 is removed in advance, and the chain is closed and attached to each other when the cutter 7 and the knotter 8 are opened.

[0016]

Since the present invention is configured as described above, when the notter is opened with the cutter closed, the notter is safely stopped by the notter stopper, and the notter is opened and locked. Even if the cutter is opened further in this state, the notter is guided along a predetermined rotation locus by the stopper constituting the link arm between the notter and the body frame, so that the notter Troubles such as breakage or deformation of any of the attached parts on the frame side can be prevented, and the opening and closing of the knotter or cutter can be easily and smoothly opened and closed.

[Brief description of the drawings]

FIG. 1 is an overall schematic plan view of a combine discharge processing unit.

FIG. 2 is a plan view showing a stopper mechanism and an enlarged plan view of a straw processing unit.

FIG. 3 is an enlarged right side view of a stopper mechanism of a straw processing unit.

[Explanation of symbols]

 1 body 7 cutter 8 knotter 9 body frame 15 cutter frame 22 knotter frame 33 stopper

Claims (1)

(57) [Claims] A body frame (9) is provided with a cutter (7) for discharging waste and a notter (8) at the rear end of the body (1) so as to be pivotally opened and closed in a horizontal direction at an end thereof. A stopper (33) that locks the notter (8) in an open state between the side and the notter frame (22).
The cutter (7) and the notch stopper (33) are provided on the body frame (9) with the turning fulcrum of the cutter (7) and the notter turning fulcrum of the cutter (7) and the notter (8). At least 4 with stopper fulcrum
A stopper mechanism of a straw processing device in a combine which constitutes a link mechanism having a fulcrum.