JP2695626B2 - Threshing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing apparatus mounted on a self-removing type combine, and more particularly to a threshing apparatus having a feature in a structure for maintenance.

[0002]

2. Description of the Related Art Conventionally, as a threshing apparatus with improved maintainability, for example, as shown in Japanese Utility Model Laid-Open Publication No. 59-150231, an upper handling chamber case rotatably supporting a handling cylinder is opened and closed by opening and closing. It is connected to the lower threshing case side, and the upper handling chamber case is closed and fixed to the lower threshing case side using hook-type locking means provided on the front and rear sides of the handling room. There has been proposed an apparatus in which a handling case is largely opened by raising a chamber case to perform maintenance such as cleaning and inspection of the handling room.

[0003]

In the proposed threshing apparatus having the above-mentioned structure, a hook-type locking means for closing and fixing the upper handling chamber case to the lower threshing case side engages the hook-shaped locking member with the locking member. To prevent the upper handling chamber case from rising and to prevent the upper handling chamber case from being shifted back and forth with respect to the lower threshing case side. Although the hook-type locking means can easily perform the separating and connecting operation, it has a problem that the closing force is weak and the displacement in the front-rear direction is easily generated. The upper handling room case acting on the hook-type locking means before and after the handling room in the direction in which the upper handling room case opens upwards, or the upper handling room case is not fixed due to the load in which the upper handling room case shifts in the front-back direction.
There is room for improvement in terms of rattling, durability, and the like. In addition, there is a possibility that the hook-shaped lock members at the front and rear lock portions may not properly engage with the corresponding locking members due to deformation, torsion, or the like. The present invention has been made in view of such a point, to solve the disadvantages associated with opening the handling room by opening the handling room,
It is intended to improve maintainability as a whole.

[0004]

According to a feature of the present invention, a threshing case is divided into an upper threshing case side and a lower threshing case side by a dividing line, and the upper threshing case side rotatably supporting a handling cylinder is provided. The lower threshing case is connected to the lower threshing case side so as to be freely swingable up and down, and the upper threshing case side is lifted together with the handling cylinder to open the handling chamber, and the front position of the handling chamber and the handling At the rear position of the room and at the position of the threshing and discharging straw transporting unit at the rear of the handling room, locking means is provided for fixing the upper threshing case side in the closed position by engaging the upper threshing case side with the lower threshing case side in the vertical direction. A hook-shaped lock member capable of swinging operation,
A locking member to which the lock member is engaged. The front-rear position regulating member is engaged between the upper threshing case side and the lower threshing case side in the front-rear direction in a closed state on the upper threshing case side. And positioning engagement means for regulating the forward and backward movement of the upper threshing case side with respect to the lower threshing case side, and the positioning engagement means comprises a pair of front and rear arranged at a small interval. A front-rear position restricting member made of a restricting piece and a front-rear position restricting member made of an insert piece engaged between the front and rear restricting pieces, and the arrangement position in a direction along the handling room front-rear direction,
The lock member and the front
The insertion piece is arranged, and a locking member for engaging with the lock member is provided between the front and rear regulating pieces, and the positioning engagement means and the lock means are arranged at positions close to each other. On the point.

[0005]

According to the above construction, the handling room can be opened by raising the upper threshing case side, and maintenance such as cleaning and inspection of the handling room can be performed. Further, when the upper threshing case side is closed, the positioning engagement means functions to position the upper threshing case side in the front-rear direction with respect to the lower threshing case side, and the front position of the handling room and the rear position of the handling room At the position of the threshing and discharging straw transporting unit side, the locking means engages and locks in a state where the front and rear direction is positioned, and the upper threshing case side is securely and firmly closed and fixed.

[0006]

According to the present invention, the following effects can be obtained. [1] The handling room can be opened simply by raising the upper threshing case side, and cleaning and inspection of the handling room can be easily performed from a large work space, so that maintainability can be further improved. Became. [2] Moreover, since the upper threshing case side is closed and fixed to the lower threshing case side by locking means provided in front of and behind the handling room and on the threshing and discharging stirrer transport unit side, the upper threshing case side is suppressed in vibration and backlash. Can be fixed. [3] Since the fixing by the locking means is performed by positioning and engaging the upper threshing case side with respect to the lower threshing case side in the front-rear direction by the positioning engagement means,
The position regulation in the vertical direction by the lock means is performed in a long range before and after the upper threshing case side, and the position shift in the front-rear direction by the positioning engagement means is synergistically controlled, so that the upper threshing case side Can be more securely closed and fixed to the lower threshing case side. [4] Further, in the threshing exhaust straw conveying section, the threshing chamber longitudinal direction
Set the installation position in the direction along to overlap with each other
Then, the lock member and the insertion piece are collectively arranged.
This makes it possible to effectively utilize the installation space and effectively fix the upper threshing case side in the vertical and longitudinal directions.

[0007]

Next, an embodiment will be described. As shown in FIG. 12, the harvested culm is automatically supplied to the handling room 2 by the threshing feed chain 1 and threshed by the rotating handling drum 3, and the threshing waste straw is automatically handled by the threshing feed chain 1. The threshing unit is configured so as to be carried out from the thruster 2, and the threshing waste straw is automatically inherited from the threshing feed chain 1 by the waste straw transport chain 4, and is taken out to the rear of the machine while being moved to the tip side in a sideways posture. A threshing and discharging straw transporting section 5 for dropping and discharging is provided behind the handling chamber 2. From receiving room 2 to receiving network 6
Of the thresh-treated product dropped and supplied through the hopper and the thresh-processed product dropped and supplied from the handling chamber 2 through the dust discharge port 7 are subjected to specific gravity sorting by a drive rocking sorter 8 and sorting wind supplied by Karamin 9. The dust is separated into particles and dust, and the dust is discharged to the outside of the machine by the transfer action by the separation wind and the dust discharging fan 10, and the threshing product from the dust discharging port 7 is released by the driving rotating body 11. A sorting unit, and a sorting device 8
The first screw conveyor 12 that carries out the first processed material dropped from the outside and the second screw conveyor 13 that carries out the second processed material dropped from the sorting device 8 to one side of the machine. It is provided at the bottom of the part. The processed material from the second screw conveyor 13 is configured to be reprocessed by the slower-type transfer device 14 having the reprocessing rotary member 14a at a position in the middle of the transfer and returned to the upstream side of the sorting device 8,
Thus, a threshing device for the combine is configured.

As shown in FIGS. 1 to 4, a front wall 15 a and a rear wall 15 b to which a handle cylinder 3 is attached at a part of a front wall and a rear wall forming the handle chamber 2, and the handle chamber 2. A threshing case 15 side provided with a ceiling wall 15c and a part 15d of a handling side side wall forming a threshing discharge stirrer transporting section 5 on which a waste straw transporting chain 14 is installed, and a lower threshing provided with a sorting section and the like. The case 16 side is divided using the cereal stalk supply port 2a, the handling port 2b, the waste straw outlet 2c of the handling room 2 and the outlet 5a of the threshing waste straw transporting section 5 and the dividing lines L1 and L2 connected to them. A threshing case has been configured to enable this.

The upper threshing case 15 is attached to the lower threshing case 16 so as to swing up and down through a pivot shaft 17 located on the side opposite to the handle 2b with respect to the handle drum 3, and an opening / closing handle 18 is provided. By the swinging operation, the pivot shaft 17 is opened and closed up and down around the axis P2 of the pivot shaft 17, which is parallel or almost parallel to the handling cylinder rotation axis P1.

When the upper threshing case 15 is opened, a telescopic rod 1 using a pair of front and rear gas springs respectively attached to the front wall 15a and the rear wall 15b.
The upper and lower threshing cases 15 and 20 are configured to self-extend and raise the threshing case 15 to reduce the manual operation force. When the upper threshing case 15 is lowered, the telescopic rods 19 and 20 using a gas spring are shortened due to the operation force so that the upper threshing case 15 can be lowered. When it is lowered to the closed position, as shown in FIG. 11, the first lock member 21, the second lock member 22, Each of the third lock members 23 is automatically locked to automatically close and lock the upper threshing case 15 side to the lower threshing case 16 side, that is, a so-called self-locking structure.

That is, the first lock member 21 is provided as shown in FIG.
As shown in FIG. 2, a pivot is pivotally attached to the handle 2 b outside the front wall portion 15 a around a fulcrum P 3 provided near the dividing line L 1, and is pivotally attached to the distal end thereof. The lock member 21 is formed in a hook shape having an inclined cam surface 21a and an engagement recess 21b following the inclined cam surface 21a, and the first end of the lock member 21 is sufficiently longer than the length of the lock member 21.
The operation lever 25 is directly connected so as to be able to swing integrally with the handle 22a.
It extends greatly toward the side. A locking state in which the engaging recess 21b of the lock member 21 is engaged with a roller-type locking member 24 provided on the lower threshing case 16 side to connect and fix the front wall portion 15a to the lower threshing case 16 side. The lock is released by a lock urging spring 26 that is actuated on a first operation lever 25 that swings integrally with the first lock member 21 so as to be switched to an unlocked state that is disengaged downward from the locking member 24. The first operation lever 25 is configured to be operated to the unlocking side by an artificial swing operation while gripping the handle 25a of the first operation lever 25.

The second lock member 22 is shown in FIGS.
As shown in FIG. 7, the pivoting member is pivotally mounted on the handle 2b outside the rear wall portion 15b so as to be vertically swingable about a fulcrum P4 provided near the dividing line L2. A second operating lever 28 which is formed in a hook shape having an engagement concave portion 22b followed by an engagement concave portion 22b, and which is sufficiently longer than the length of the lock member 22, is provided at the base end of the lock member 22. It is directly connected so as to be able to swing integrally, and largely extends toward the handling port 22a. A locking state in which the engaging recess 22b of the lock member 22 is engaged with a roller-type locking member 27 provided on the lower threshing case 16 to connect and fix the rear wall 15b to the lower threshing case 16 is provided. , Locking member 27
So that it switches to the unlocked state,
Further, a lock urging spring 29 acting on a second operation lever 28 swinging integrally with the second lock member 22 is provided.
Thus, the handle portion 28a of the second operation lever 28 is gripped to be operated toward the lock release side by an artificial swing operation.

As shown in FIGS. 6 to 8, the third lock member 23 is located on the free end side of the upper threshing case 15 side of the upper threshing case frame 30 and on the rear end side of the fuselage with respect to the rear wall portion 15b. The lower threshing case 1 is pivotally attached to the rear end portion A and pivoted right and left around the pivot axis P5.
The upper threshing case frame 30 is engaged with the locking member 32 of the connecting frame 31 provided on the
And a lock state in which the rear end side of the upper threshing case 15 is connected to and fixed to the lower threshing case 16 side, and a lock release state in which the locking member 32 is disengaged laterally outside the body. It is.

As shown in FIGS. 5 to 7, a rotation interlocking shaft 33 is also used as a pivot shaft of the third lock member 23, and is attached to the front end of the interlocking shaft 33 so as to rotate integrally. Swing arm 34, and an interlocking link 35 between the arm 34 and the second operation lever 28 to form the third lock member 23.
Is also linked to the second operation lever 28 so that
The third lock member 23 is also configured to be operated to the lock side by the spring 29 together with the second lock member 22, and to be manually operated to the unlock side by the second operation lever 28.

When the upper threshing case 15 is open, the first lock member 21 is in the mounting position where the first operating lever 25 contacts a stopper (not shown) on the upper threshing case 15 side. With the spring 26, and
The second lock member 22 and the third lock member 23
The operation lever 28 is maintained by the springs 29 in the mounting position where it comes into contact with the stopper portion (not shown) of the upper threshing case 15, and the lowering of the upper threshing case 15 causes the locking member 24 to tilt with the locking member 24. The first lock member 21 is pressed against the spring 26 in the unlocking direction relatively to the cam surface 21a to come into contact with the spring 26, and the locking member 27 is brought into contact with the inclined cam surface 22a. When the second lock member 22 and the third lock member 23 are relatively swung in the unlocking direction against the spring 29, and the upper threshing case 15 side is in the closed position, the locking member 24 is relatively moved. The first lock member 21 is attached to the spring 26 so as to pass through the inclined cam surface 21a and engage with the engagement concave portion 21b.
And the second lock member 22 is assisted by the spring 29 so that the locking member 27 relatively passes through the inclined cam surface 22a and engages with the engagement recess 22b. In addition, the third lock member 23 is also engaged with the lock member 32 so that all the lock means are automatically locked.

In other words, when cleaning or inspecting the receiving net 6 and the handling room, the upper threshing case 15 is swung to open and close the handling room 2 and at the same time the handling drum 3 enters and exits. It is. Then, only by closing the upper threshing case 15, the first to third locking members 21, 22, and 23 automatically lock, and the upper threshing case 1 is closed.
The 5 side is closed and fixed at three places, the front and rear sides of the handling room 2 and the rear portion of the handling room, so that it is hard to vibrate regardless of threshing reaction force, rotation of the handling cylinder, and the like. In addition, the first lock member 21 and the second lock member 22 are respectively integrated with the
By operating the first operation lever 25 and the second operation lever 28 which extend largely to the side, all of the first to third lock members 21, 22, 23 are disengaged and the upper threshing case 15 The side can be closed and released.

In the closed and locked state of the upper threshing case 15 side, the free end of the first operation lever 25 and the open / close handle 18
And, the free end of the second operation lever 28 is arranged and set so as to be linearly arranged in the longitudinal direction of the aircraft. That is, knowing that the first operation lever 25, the opening / closing handle 18 and the second operation lever 28 are in the above-mentioned arrangement state, the upper threshing case 15 side can be the first to third lock members 21 and 2.
Thus, it can be determined that the camera is in the state of being closed and fixed by 2, 23.

As shown in FIG. 11, the connecting frame 31 is bent so as to detour the threshing and discharging straw transporting path R by the discharging and straw transporting chain 4 to the rear side of the machine body.

As shown in FIG. 7, when the upper threshing case 15 is closed, the upper threshing case frame 3 is closed.
The front / rear position regulating member 36 having a plate-shaped insertion piece 36a formed in a wide and tapered shape at the front and rear provided on the connecting frame 31 is provided with a pair of front and rear regulating pieces 37a, 3 provided on the connection frame 31.
7a so that the upper and lower threshing case 15 side and the lower threshing case 16 side are prevented from shifting in the front and rear position by the contact between the front and rear position restriction member 36 and the front and rear position restriction member 37. It is composed.

As shown in FIG. 3, a first reinforcing frame 38 is erected and connected between the lower end of the rear wall 16a for the handling room on the lower threshing case 16 and the side wall 16b on the handling opening side. A second reinforcing frame 39 connecting the frame 38 and the upper end side of the rear wall portion 16a for the handling room is provided,
The rear wall for the handling room is strengthened.

As shown in FIG. 3, a telescopic rod 20 using a rear gas spring is engaged with a spring support shaft 40 of the rear wall 16a in a direction perpendicular to the axis of the spring support shaft 40. The mounting portion 20a is formed in a U-shape so as to be detachable. In other words, consideration is made so that the telescopic rod 20 using a gas spring can be attached to and detached from the rear wall portion 16a simply by inserting and removing the telescopic rod 20 in the axial direction thereof.

The receiving net 6 is detachably attached by an attachment structure shown in FIG. That is, a pair of front and rear receiving net receiving frames 41, 41, one end of which is attached to the pivot shaft 17 and the other end of which is attached to the lower lip plate of the lower threshing case 16, slide in the circumferential direction of the handling cylinder. In addition, the front and rear sides of the receiving net 6 are mounted so as to be detachable from the handling cylinder rotation axis P1 side. Then, the pressing operation of the upper threshing case 15 acting on the end face of the receiving net 6 opposite to the handling side via the straw cutting blade base 42 causes the receiving net 6 to be pressed.
Of the lower threshing case 16 and the straw cutting blade base 42 is prevented from rising from the receiving frame 41 with respect to the receiving net 6. The receiving net 6 is fixed by being brought into contact with the direction. That is, with the upper threshing case 15 side opened and the straw cutting blade base 42 removed, the receiving net 6 is slid along the receiving frame 41 to the opposite side to the port side to engage the locking member 43. The receiving network 6 can be taken out by removing from the receiving frame 41 and lifting the receiving frame 41 toward the handling port.

As shown in FIGS. 1 and 10, the output pulley 4 of the transmission 44 provided on the traveling body is linked to the engine E by a belt so as to enable the driving of the handle cylinder 3.
5. Handling cylinder drive pulley 4 attached to rotating shaft 46 of handling cylinder 3.
7, a transmission belt 51 is wound around a first intermediate pulley 48 attached to the pivot shaft 17, a second intermediate pulley 49 and a third intermediate pulley 50 attached to the lower threshing case 16, and provided on the transmission 44. Tension wheel 5
2, so that a transmission tension is applied to the transmission belt 51. The pulleys 47, 48, and 49 are arranged in such a positional relationship that the upper body 15 can be opened and closed without the need to remove or loosen the transmission belt 51.

As shown in FIGS. 3 and 10, the rotating shaft 46
, A chain drive pulley 55 attached to the lower threshing case 16 in a state of gear interlocking with a winding sprocket 54 of the discharge straw transport chain 4, and an intermediate pulley 56 attached to the pivot shaft 17. The belt 57 is wound, and a transmission tension is applied to the transmission belt 57 by a tension wheel 58 attached to the pivot shaft 17. The pulleys 53, 55, and 56 are arranged in such a manner that the opening and closing of the upper threshing case 15 can be performed without the need to remove or loosen the transmission belt 57.

[Another Embodiment] Instead of the above-described embodiment, the first lock member 21 and the second lock member 22 are linked to one operation lever,
All of the first to third lock members 21, 22, and 23 are interlocked and connected to one operation lever, and the operation of unlocking the three lock members is simplified so that the operation can be performed with less labor than separately. May be implemented.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a front view of a threshing unit in a closed state.

FIG. 2 is a front view of the threshing unit in an open state.

FIG. 3 is a rear view of the threshing unit in a closed state.

FIG. 4 is a rear view of the threshing unit in an open state.

FIG. 5 is a rear view of a second lock member in an open state.

FIG. 6 is a rear view of the second lock member in a closed state.

FIG. 7 is a side view of a third lock member.

FIG. 8 is a rear view of a third lock member.

FIG. 9 is a cross-sectional view of a receiving net mounting portion.

FIG. 10: Transmission system diagram

FIG. 11 is a perspective view of a lock member.

FIG. 12 is a schematic side view of a threshing apparatus.

[Explanation of symbols]

 2 Handling Room 3 Handling Cylinder 4 Discharge Straw Chain 5 Threshing Discharge Straw Conveying Unit 15 Upper Threshing Case 16 Lower Threshing Case 21 Lock Member 22 Lock Member 23 Lock Member 24 Lock Member 27 Lock Member 32 Lock Member 36 Front and Rear Position Control Member 36a Insertion piece 37 Front-back position regulation member 37a Regulation piece

Claims (1)

(57) [Claims] 1. A threshing case is divided into an upper threshing case (15) and a lower threshing case (16) by dividing lines (L1), (L1).
2), and the upper threshing case (15), which rotatably supports the handling cylinder (3), is connected to the lower threshing case (16) so as to be able to swing up and down and open and close. ) Together with the upper threshing case (15) so as to open the handling room (2), and a front position of the handling room (2), a rear position of the handling room (2), The upper threshing case (15) side is closed to the lower threshing case (16) side in the closed position with the threshing and discharging straw transport section (5) side position behind the handling room (2) and fixed. And a lock member (2) capable of swinging operation.
1), (22) and (23) and the lock member (2)
1) Locking member (2) with which (22) and (23) are engaged
4), (27) and (32), and between the upper threshing case (15) side and the lower threshing case (16) side, the front / rear position regulating members (36) and (37) are upper threshing. Positioning engagement means is disposed at a position engaged with the front and rear direction in the closed state on the case (15) side to regulate the front and rear movement of the upper threshing case (15) side with respect to the lower threshing case (16) side. And a pair of front and rear regulating pieces (37) arranged at small intervals.
(a), (37a), a front / rear position regulating member (37)
And a front / rear position regulating member (3) comprising an insertion piece (36a) engaged between the front and rear regulating pieces (37a), (37a).
6) and the arrangement positions in the direction along the front and rear direction of the handling room are mutually
The lock member (23)
The insertion piece (36a) is arranged, and a locking member (32) that engages with the locking member (23) is provided between the front and rear regulating pieces (37a), (37a), and the positioning member A threshing apparatus characterized in that the combining means and the locking means are arranged close to each other.