JPH08191623A - Whole culm charging type thresher - Google Patents

Abstract

PURPOSE: To provide an apparatus capable of simply and readily performing the cleaning and inspection of a threshing drum or corn caves, etc., and carrying out the large-scale maintenance without any trouble in threshing functions in spite of an adopted opening and closing structure for each large opening and closing cave. CONSTITUTION: This thresher is obtained by constituting each opening and closing cave B formed by integrating a left side plate 15 of a threshing chamber 1 with a cave part 3A on the mobile side corresponding to the left side plate 15 in each corn cave 3 so as to enable the changeover from a mounted posture in which the cave B is connected to the cave part 3B on the fixed side by shaking and moving around the fulcrum P in the upper part to an opened posture in which the cave B is retreated to the transverse lateral side of the threshing chamber 1. Pin connecting means 21 capable of removing and inserting connecting pins 10 over the cave part 3A on the mobile side and the cave part 3B on the fixed side are installed in two places in the central part and riding on cam mechanisms 12, equipped with a cam member 13 capable of pushing up the lower end of the cave part 3A on the mobile side by shaking and moving to the left side and permitting the opening and shaking of the cave part 3A on the mobile side by shaking and moving to the right side are provided in the total two places in front and rear so as to enable the maintenance of the mounted posture of the opening and closing cave B. Thereby, the simplification of the mounting operation of the opening and closing cave can be carried out to accurately operate even the opening and closing cave of especially a continuous shape to the mounted posture without any strain.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an all-culm throwing type threshing device, and more particularly to a technique for opening and closing a handling room in order to clean the handling room and improve maintainability.

[0002]

2. Description of the Related Art Generally, an all-culm throwing type threshing device is provided with a handling cylinder equipped with spiral handling teeth in a handling room surrounded by left and right side plates and a top plate, and is handled by the handling cylinder. It was equipped with a cone cave that leaked out the processed material, and the cone cave and the handling cylinder were cleaned and maintained from the inspection port formed on the side plate.

[0003]

In the above-mentioned prior art, since the cleaning and inspection can be performed only through the inspection port of the predetermined position and size, the work is performed at the part away from the inspection port. It was difficult and time-consuming. Also, since large-scale maintenance cannot be performed by the work from the inspection port, in such a case, it is necessary to remove the side plate that is not considered for attachment and detachment, and it is also a considerable labor to remove it. It took a lot of time. An object of the present invention is to provide an all-culm throwing type threshing device that can easily clean and inspect the handling barrel and the corn cave while not hindering the function of the threshing device.

[0004]

In order to achieve the above object, the present invention provides a handling cylinder provided with spiral handling teeth in a handling chamber surrounded by left and right side plates and a top plate. In a whole culm type threshing device equipped with a corn cave that leaks the processed material handled by the handling cylinder, one side plate of the left and right side plates and a moving side cave corresponding to one side plate of the corn cave The opening and closing cave that is integrated with the part is switched between the mounting position connected to the fixed side cave part of the cone cave and the open position retracted to the lateral outside of the handling chamber by swinging movement around the upper fulcrum. When the opening / closing cave is in the mounting position, the pin can be switched between a locking position in which the connecting pin is inserted between the moving side cave part and the fixed side cave part and a releasing position in which the connecting pin is pulled out. Configure connecting means Rutotomoni, is characterized in that the connecting pins from the outside of the threshing chamber are provided with a push-pull-out operable operating member.

In addition, a riding cam mechanism is provided which is provided with a cam member which pushes up the lower end of the moving side cave portion by moving it to one side and allows the moving side cave portion to open and swing by moving to the other side. It is more convenient if the cam member is provided with an operating member that can be moved from outside the handling room.

[0006]

According to the structure of claim 1, the opening and closing cave in which one side plate and the corresponding cone cave are integrated,
By swinging around the upper fulcrum and opening it to the lateral outside of the handling room, the opening corresponding to the area of the moving side cave can be exposed with the handling barrel exposed. It will be possible to clean and inspect the handling barrel and cone cave from its large opening. Further, since the inspection port is much larger than the conventional inspection port, it is possible to perform large-scale maintenance. Further, since the pin connection means allows the mounting posture of the open / close cave to appear while the moving side cave part and the fixed side cave part are positioned, the moving side cave part is displaced during the threshing work, and the fixed side cave part is displaced. It is possible to prevent the inconvenience that a step is generated at the step and the processed material is stagnant at the step, and the opening and closing of the cone cave can be realized without impairing the leakage function of the cone cave.

According to the second aspect of the invention, it becomes easy to operate the opening / closing cave that is long in the axial direction of the handle cylinder in the mounting posture as described below. That is, since the opening and closing cave that integrates the moving side cave part and the side plate becomes relatively heavy, it bends due to its own weight,
When the upper fulcrum is positioned, the lower end of the moving cave, which is the lower end of the open / close cave, tends to hang from its normal position, which may make it difficult or impossible to insert the connecting pin. There is.
Therefore, by providing a riding cam mechanism including a cam member that acts to push up the moving side cave portion,
First, if the cam member is moved by the operation member, the lower end of the moving side cave part, which is slightly dripping, that is, the lower end part of the open / close cave can be lifted and set in a normal position where the connecting pin can be inserted. Will be revealed,
After that, by operating the pin connecting means, the pin connecting means can be operated as expected to operate the connecting pin in the locked posture. Therefore, even if the open / close cave may hang down due to its own weight or change over time, the pin connecting means can be operated as expected, and there is no step between the moving side fixed part and the fixed side cave part. In this state, the opening / closing cave can be maintained in the wearing posture.

[0008]

As a result, in the all culm throwing type threshing device according to the first aspect of the present invention, cleaning and inspection of the barrel, corn cave and the like can be performed easily and easily, and large-scale maintenance can be performed. Although the opening and closing structure of the opening and closing cave was adopted, it was possible to prevent the threshing function from being affected. According to the configuration of claim 2, in addition to the above effect, the mounting operation of the opening / closing cave can be simplified, and the connecting pin is pushed forcibly, or the connecting pin is pushed while pushing up the opening / closing cave manually.
There is an advantage that the opening and closing cave can be operated in a wearing posture by a light operation. Especially, it is particularly effective for a long open / close cave.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings for a threshing device for a whole culm type combine harvester. 1 to 3 show a threshing device A for an all-cullet-type combine harvester, in which a spiral-shaped handle tooth 2A is provided on the outer periphery of a handle chamber 1 formed by being surrounded by left and right side plates 15 and 15 and a top plate 14. Threshing device A in which a handling cylinder 2 attached to the above is rotatably installed, a corn cave 3 is arranged below the handling cylinder 2, and a sorting section 4 for sorting the processed material leaking through the corn cave 3 is disposed below the handling barrel 2.
Is configured. The No. 2 recovery unit 25 in the selection unit 4 is provided with the No. 2 reduction device 20 for returning the recovered No. 2 material to the starting end of the selection unit 4. The top plate 14 having a large number of dust-sending valves 8 on its inner surface is connected to the upper support frame 6 via a first bracket 5 at the left end thereof so as to be swingable and openable around a swing fulcrum W.

As shown in FIGS. 3 and 4, the cone cave 3
Is configured by arranging a large number of round bars 17 in parallel over a pair of front and rear arc-shaped outer frames 16, but since the handling cylinder is long, it is divided into two parts on the left and right and four parts on the front and rear, making a total of eight cables. Part 3A, 3B
It is configured as a collection of. The rearmost cave part has a short front-rear length. Then, of the eight cave parts 3A, 3B, the second and third cave parts 3A, 3A on the left side can be opened and closed to the left to open and close the cave B.
The structure will be described in detail below.

As shown in FIGS. 2 to 6, the opening / closing cable B
Is the left side plate 15 and the corresponding moving side cave parts (that is, the second and third from the front among the four front and rear left side caves) 3A, 3A.
The upper support frame 6 is swingably opened and closed around the upper fulcrum P via the second bracket 9 so as to be swingably opened and closed. Therefore, if the open / close cave B is swung around the fulcrum P, the fixed side cave part 3 on the right side is moved.
It is configured to be switchable between a mounting posture connected to B (see FIG. 4) and an open posture (see FIG. 6) retracted to the left lateral outside of the handling room 1.

Further, a handle 15A for swinging and opening and closing the open / close cave B by a manual operation is attached to the lower end of the surface of the side plate 15 thereof, and the open / close operation against the weight of the open / close cave B is facilitated. For this reason, the gas cylinder 7 is installed across the left side plate 15 and the lower support frame 6. The open / close cave B is configured to be maintained in the mounted posture by the front and rear riding cam mechanisms 12 and the front and rear pin connecting means 21.

The pin connecting means 21 has a lock position (see FIG. 4) in which the connecting pin 10 is inserted between the movable side cave part 3A and the fixed side cave part 3B when the opening / closing cave B is in the mounting position. A handle (corresponding to an operating tool) 11 that is configured to be switchable to a release posture (see FIG. 5) extracted from the fixed side cave portion 3B and that can push and pull the connecting pin 10 from the left outside of the handling chamber 1 is provided. It is prepared.

That is, an operating rod 21A having a tip formed on the connecting pin 10 is extended through the fixed left side plate 15 to the outside, and a protruding portion of the operating rod 21A is swingable on the longitudinal axis Z to the operating arm 24. It is pivotally connected. A dead point spring 21B is hooked on the operation arm 24, and is configured to urge the operation rod 21A in any engagement / disengagement state of the connecting pin 10 with respect to the fixed side cave portion 3B. The front and rear operation arms 24, 24 are connected and integrated by a connecting pipe 25 to form the above-described operation handle 11, and by swinging the operation handle 11 with one hand, a pair of front and rear pin connecting means 21. , 21 can be operated simultaneously. The pin connecting means 21 is
The moving-side cave portion 3A is provided at two places in the central portion of the handling barrel 2 in the axial center X direction, and the riding cam mechanism 12 is disposed at both ends in the handling barrel axial center X direction.

The riding cam mechanism 12 is provided with a cam member 13 disposed below the lower end of the moving side cave portion 3A and capable of swinging left and right around a longitudinal axis Y.
By swinging 3 to the left (moving to one side), the lower end of the moving side cave portion 3A is pushed up, and swinging to the right (moving to the other side) allows the open swinging of the moving side cave portion 3A. It is a structure. Further, a pair of switching levers (corresponding to operating members) 22 connected to the cam member 13 by a rod 23 are provided at a fixed left side plate 15 portion before and after the opening / closing cave B, and a pair of switching levers 22 are provided from outside the handling chamber 1 to the cam member 13. It is configured to be capable of swinging movement. Reference numeral 26 is a return spring that biases the cam member 13 toward the closing side, and 27 is a stopper that determines the closing position of the cam member 13.

The cam member 13 in the standing posture interferes with the movement trajectory k of the maximum outer diameter of the opening / closing cable B (see FIG. 4).
In the retracted posture in which the rod 23 is retracted to the back, it is configured to move out of the movement trajectory k (see FIG. 5), and the rod 23 is located at a position separated from the opening and closing cave B in the front and rear, that is, the fixed left side plates 15, 15. Is arranged so as not to interfere with the opening and closing of the opening and closing cave B. Although not shown, a member is provided to prevent the moving side cave portion 3A from jumping out above the fixed side cave portion 3B. The cave parts 3A and 3B are set at regular connection positions.

That is, in order to return the open / close cave B in the open position to the mounted position, the open / close cave B is swung downward by one-hand operation while gripping the handle 15A, and first, the operation handle 1
Operate 1 to push the front and rear operating rods 21A to operate 2
The pin connecting means 21 and 21 at various places are locked, and then the cam members 13 are erected and rocked by the rocking operation of the front and rear switching levers 22 and 22 to push up the front and rear end portions of the moving side cave portion 3A which is in a dangling state. It is possible to maintain the open / close cave B in the mounted posture in a normal state in which there is no step in the radial direction of the handling cylinder 2 between the moving side cave portion 3A and the fixed side cave portion 3B.

As in this embodiment, by providing the pin connecting means 21 at the front and rear intermediate portions of the opening and closing cave B and the riding cam mechanisms 12, 12 at the front and rear ends respectively, the following advantages can be enjoyed. There is also. In other words, the rigidity of the sheet metal open / close cave is not so great, and if it is long in the front-back direction, the amount of bending in the longitudinal direction becomes significant.For example, when the open / close cable is equipped with only a plurality of pin connecting means, With the method of pushing the center part of
The front and rear ends of the opening and closing cave tend to drip, making it difficult to insert the connecting pin there. Further, in the method of pushing the front end portion or the rear end portion of the opening / closing cave by hand to set it in the mounting posture, the rear end portion or the front end portion is more likely to hang down, and it becomes more difficult to insert the connecting pin there.

Therefore, if the pin connecting means is arranged in the middle of the cone cave and the riding cam mechanism is arranged at both ends,
The middle portion of the open / close cave is pushed by hand to operate it in the mounting posture, and first the pin connecting means is operated in the lock posture to lock the open / close cave to the fixed side cave part. Even if the cam member is drooping, the cam member lifts the drooping front and rear ends to correct the mounting posture by operating the cam mechanism.
As a result, even if the longitudinal strength and rigidity of the open / close cave is not so strong, it is possible to maintain the mounting posture without any step between the moving side fixed part and the fixed side cave part. Since it is sufficient to simply operate the operation tool and the operation member, there is no labor load and troublesome operation of the operation member while pushing up the hanging cave portion with the other hand. Further, when the riding cam mechanism is arranged in the middle part and the pin connecting means is arranged at the front and rear, as is apparent from the above description, it is presumed that it is difficult to operate the mounting posture.

[Other Embodiments] In this embodiment, the upper fulcrum P is configured as a swing fulcrum in a fixedly connected state. For example, a round pipe is laid across the front and rear fixed left side plates 15, 15.
A detachable structure having an upward U-shaped mold member that can be fitted into the round pipe without a gap above the open / close cave B may be used.
That is, at the time of mounting, first, the mold material at the upper part of the opening / closing cave B is swung downward in a state of being fitted to the round pipe, and the pin connecting means 21 or the like is set to the mounting posture, and the pin connecting means is set to the open posture. After releasing 21 etc., the open / close cave B is independently removed by rocking up a little.

Further, the riding cam mechanism 12 pushes up the lower end of the moving side cave portion 3A on the tapered upper surface by sliding (moving in parallel) the cam member 13 having the tapered upper surface to the left and right. The structure may be such that the opening / closing cave B can be retracted from the swing locus by sliding the cam member 13.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a cross-sectional side view showing the structure of an all-culm input threshing device.

FIG. 2 is a left side view of the threshing device.

FIG. 3 is a cross-sectional view of a handle portion showing a support structure for an opening / closing cave.

FIG. 4 is a sectional view showing a structure of a pin connecting means and a riding cam mechanism.

FIG. 5 is a sectional view showing a state in which the pin connecting means and the riding cam mechanism are released.

FIG. 6 is a cross-sectional view of essential parts showing an open / closed cave state in an open position.

FIG. 7 is a side view of the main part showing the arrangement of the pin connecting means and the riding cam mechanism.

[Explanation of symbols]

 1 Handling Room 2 Handling Body 2A Handling Teeth 3 Cone Cave 3A Moving Cave Part 3B Fixed Cave Part 10 Connecting Pin 11 Operating Tool 12 Riding Cam Mechanism 21 Pin Connecting Means 22 Operating Member B Opening and Closing Cave P

Claims (2)

[Claims] 1. A handling cylinder (2) having spiral handling teeth (2A) in a handling chamber (1) surrounded by left and right side plates (15), (15) and a top plate (14). And a corn cave (3) that leaks the processed material that has been handled by the handling cylinder (1), and is an all-culm throwing type threshing device, wherein the left and right side plates (15), An opening and closing cave (B) formed by integrating one side plate (15) of (15) and a moving side cave portion (3A) corresponding to the one side plate (15) of the cone cave (3), By the swinging movement around the upper fulcrum (P), the cone cave (3)
In the mounting posture connected to the fixed side cave portion (3B), and the open posture retracted laterally outward of the handling chamber (1), the opening and closing cave (B) is set to the mounting posture. At a certain time, the movable side cave part (3A) and the fixed side cave part (3A).
B), a pin connecting means (21) capable of switching between a locked posture in which the connecting pin (10) is inserted and a released posture in which the connecting pin is pulled out is formed, and the connecting pin (10) is connected to the handling chamber (1). ) Pushing and pulling operation tools (1
All culm throwing thresher equipped with 1). 2. A cam member (13) for allowing the lower end of the moving side cave portion (3A) to be pushed up by moving to one side and allowing the open side swinging of the moving side cave portion (3A) by moving to the other side. A cam mechanism (1
The all-culm throw-in type threshing device according to claim 1, further comprising: an operation member (22) that is provided with 2) and that can move the cam member (13) from the outside of the handling chamber (1).