JPH0870681A - Thresher - Google Patents

Abstract

PURPOSE: To improve operability in drawing and inserting by enlarging drawing and inserting port of a receiving net based on opening of a threshing opening plate and using the opened threshing opening plate also as a drawing and inserting guide. CONSTITUTION: In drawing and inserting a receiving net 10 arranged along the lower side of a threshing cylinder 9 from an into the threshing opening 6a side opened and provided on one side of a threshing chamber 6, a threshing opening plate 29 for covering the lower part of a threshing opening 6a of the threshing chamber 6 is freely openably/closably constituted on the outside using the lower end side as a supporting point, and a corner part 29a for carrying out drawing and inserting guide of a receiving net 10 is formed on the inside of the base end part of the threshing opening 6a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing device provided in a combine or the like.

[0002]

BACKGROUND OF THE INVENTION Generally,
In this seed threshing device, a receiving net is arranged along the lower side of the handling barrel in a handling room where a handling port is opened on one side, and the receiving network is configured to be removable from the handling port side. There is something I did. However, in the past, the handle plate that covers the lower portion of the handle of the handling chamber was fixed, and only the cover body that covers the inlet / outlet port of the receiving net was attached / detached. The actual situation was inferior. Therefore, it is conceivable to make the handle plate detachable to expand the insertion / removal port of the net, but in this case, it takes a lot of time to attach and remove the handle plate, which may rather reduce workability. Perhaps, there was a problem that the insertion position of the receiving network became ambiguous and it became difficult to insert the receiving network accurately.

[0003]

DISCLOSURE OF THE INVENTION The present invention was devised with the object of providing a threshing device capable of eliminating these drawbacks in view of the above circumstances,
In a threshing device in which a handling opening is provided on one side, a receiving net is arranged along the lower side of the handling barrel, and the receiving net is configured to be detachable from the handling opening side, The handling plate that covers the lower portion of the handling chamber is configured to be openable and closable outward with the lower end side as a fulcrum, and the inner side of the handling plate is
It is characterized in that an insertion / removal guide portion for guiding the insertion / removal of the receiving net when it is opened is formed. Further, the guide portion is characterized in that a guide groove for guiding a horizontal rail of the receiving net which faces the inserting / removing direction is formed. Also,
It is characterized in that the handle plate is formed with a pushing portion for pushing the base end portion of the receiving net at the time of closing. Further, the push-in portion is characterized in that a positioning engaging portion which engages with a base end portion of the receiving net when closed is formed. Further, when disposing the straw cutting sickle in the handling room,
It is characterized in that it is assembled to a bracket member fixed in the handling chamber, and that the bracket member is formed with a positioning engaging portion that engages with the tip end portion of the net. According to the present invention, with this configuration, the insertion / removal opening of the receiving net is expanded based on the opening of the handling opening plate, and the opened handling opening plate is also used as the insertion / removal guide to improve workability during insertion / removal. Is.

[0004]

Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, 1 is a combine, and the combine 1 comprises a mowing section 2 for cutting stems, a threshing section 3 for threshing cut stems and selecting threshed grains, and a threshing-treated The post-processing section 4 for discharging the culms and the crawler-type running section 5 are provided, but the basic configurations of these are all the same as in the prior art.

Reference numeral 6 denotes a handling chamber provided in the upper front half of the threshing unit 3, and in the handling chamber 6, a front frame 7 is provided.
From the stem culm supply port 7a to the stem culm discharge port 8a of the rear frame 8
The stem culms transported to the root are threshed based on the rotating threshing action of the handling barrel 9 housed in the handling chamber, and the threshed grains leak into the sorting chamber 11 through the receiving net 10 described later. It is supposed to do. The upper surface and the upper half of the left side surface of the handling chamber 6 are always covered with an upper cover 12 that is bent in an L-shape. However, when cleaning, inspecting, or maintaining the handling chamber 6, the upper cover is used. The upper surface and the upper half of the left side surface of the handling chamber 6 can be opened by rotating the handle 12 upward with the right end of the upper side of the handling chamber 6 as a fulcrum.

Reference numeral 13 denotes a pinch rail, which is laterally installed on the left side surface of the handling chamber 6 so as to closely face and face above a threshing feed chain 14 which will be described later. In the example, since the sandwiching rail 13 is integrally provided on the side surface portion of the upper cover 12, the sandwiching rail 13 is provided.
Can be retreated from the facing position of the threshing feed chain 14 to the upper right side as the upper cover 12 retracts.

The threshing feed chain 14 holds the stalks transferred to the end position of the handling depth carrier 15 provided in the pretreatment section 2 between the threshing rail 13 and the stalks, and the threshing feed chamber 14 of the handling chamber 6 is held. The culms that have been threshed in the lateral conveyance process are conveyed to the starting end position of the culm feed chain 16 that is disposed behind the handling chamber 6 while being conveyed laterally along the handling opening 6a provided on the left side surface. The driven sprockets 17 and 18 and the drive sprocket 19, on which the threshing feed chain 14 is suspended, are provided laterally on the side surface of the handling chamber, so that the chain frame 20 is rotatable upward and forward with the drive center of the drive sprocket 19 as a fulcrum. Is installed in. That is, the threshing feed chain assembly A composed of the threshing feed chain 14, the driven sprockets 17 and 18, the driving sprocket 19, the chain frame 20 and the like is rotated up and down to a standing and retracted posture with the driving center of the driving sprocket 19 as a fulcrum. Although freely configured, the threshing feed chain assembly A that has been erected and retracted is located in front of the front frame 7 of the handling room 6 and opens the entire left side surface of the handling room 6.

On the other hand, the receiving net 10 is a pair of front and rear lateral frames 1 formed in an arc shape along the lower outer periphery of the handling cylinder 9.
0a, a plurality of horizontal rails 10b arranged side by side at a predetermined interval between the front and rear horizontal frames 10a, and a pair of left and right vertical frames 10c facing the axial direction of the handling cylinder 9 as a frame. Although it is formed by stretching a net material, it can be inserted and removed from the handling port 6a side for cleaning, inspection, maintenance and the like. That is, the handle cylinder 9
A guide rail 21 slidably supporting the both front and rear ends of the receiving net 10 is provided at a position on the back side of the handle cylinder 1 while
Since the guide support shaft 22 that receives the receiving net 10 from below is provided at the lower position of 0, insertion / removal of the receiving net 10 along the lower outer periphery of the handling cylinder 9 is allowed.

Reference numeral 23 denotes a straw cutting sickle that cuts the circulating straw in the handling room 6. The straw cutting sickle 23 is integrally attached to the upper rear position of the handling barrel 9, but the straw cutting sickle 23 is placed at that position. The mounting bracket 24 for mounting the sickle 23 is assembled by hooking the hook portion 24a formed at the lower end portion to the connecting frame 25 (the connecting member of the front and rear frames 7 and 8) while fixing the upper end portion to the welding bolt 26 with a nut. Attached. Then, a comb-shaped plate 27 with a handle is superposed on the mounting bracket 24 while sandwiching the straw cutting sickle 23, and the comb-shaped plate 27 is fixed by a single bolt 28. An engaging groove 24b having a U-shape, which is wider toward the lower side, is formed at the bottom. That is, when the receiving net 10 is inserted, the pipe material P fixed to the front end portion of the receiving net 10 in the inserting direction is engaged with the engaging groove 24b to support and position the leading end side of the receiving net. Has become.

On the other hand, 29 is a handling port plate which covers the lower portion of the handling port of the handling chamber 6, and the handling port plate 29 is constructed so as to be openable and closable outward with a support shaft 30 at the lower end as a fulcrum. When the handling port plate 29 is opened, the insertion / removal port of the receiving net 10 is expanded. At this time, the corner portion 29a formed by bending on the inner surface of the lower end portion of the handling port plate 29 is Since it is parallel to the handling cylinder 9 at a predetermined interval, it functions as an insertion / removal guide for slidingly guiding the lower surface of the receiving net 10 at the time of insertion / removal. Reference numeral 40 is a mounting bracket for the drive sprocket 19 which also serves as a lower limit stopper for the handle plate 29.

Further, 29b is a guide groove formed in the corner portion 29a, and the guide groove 29b is located at a position corresponding to a predetermined horizontal rail 10b among a plurality of horizontal rails 10b provided in the receiving net 10. Is formed in. That is, if the receiving net 10 is inserted with the predetermined cross rail 10b fitted in the guide groove 29b, the receiving net 10 can be set in a predetermined set position without being displaced in the front-rear direction.

Further, 29c is a pushing surface portion formed below the corner portion 29a, and the pushing surface portion 29c is provided.
When the handle plate 29 is closed, it abuts on the base end face of the receiving net 10 and pushes it inward while slightly lifting it, and further, the engaging hole formed in the pushing face part 29c. Since 29d engages with the engagement pin 31 projectingly provided on the base end surface of the receiving net 10, the receiving end is supported and positioned on the base end side of the receiving net.

By the way, the engagement pin 31 is provided so as to project slightly downward with respect to the mating surface with the pushing surface portion 29c. That is, when the handle plate 29 is closed, the engagement pin 31 is in a state of being hooked on the lower end portion of the engagement hole 29d, and therefore, even if a load is applied as the handle barrel rotates, the net 1
It is difficult for 0 to come off, and moreover, when the handle plate 29 is opened, the net 1
Since 0 is pulled out a little to the front, it is possible to reduce the operation force at the beginning of pulling out.

Further, 32 is a hook plate for locking the handle plate 29 in the closed position, and the hook plate 32 is provided on the outer surface side of the left end portions of the front and rear frames 7, 8 so as to be vertically rotatable. Has been. Then, at the downward rotation position, the fixing pins 33 projectingly provided at both front and rear ends of the handle plate 29.
While the opening of the handle plate 29 is restricted by engaging with the handle plate 29, the handle plate 29 is released by disengaging from the fixing pin 33 at the upper rotation position.
However, the operating lever 32a integrally welded to the hook plate 32 is in a vertical posture along the side surface of the handling chamber in the engaging operation position, and is in an inclined posture in the engaging operation position. And project outwards. Since the operation lever 32 is disposed close to the inner side of the threshing food chain assembly A, the operation lever 32 interferes with the turning operation of the threshing food chain assembly A to the working position at the engagement release operation position. The threshing food chain assembly A that descends when it is recognized that it is in the disengaged state and when the hook plate 32 is not sufficiently engaged.
The hook plate 32 is pressed by and is pushed to the engaging position.

In the embodiment of the present invention constructed as described above, when cleaning, inspection, maintenance, etc., in the handling room 6,
The receiving net 10 arranged along the lower side of the handling barrel 9 is inserted and removed from the handling port 6a side opened on one side surface of the handling chamber 6, but the handling net covering the lower portion of the handling port 6 is handled. Since the mouth plate 29 can be opened and closed outward with the lower end side as a fulcrum, the insertion / removal opening of the receiving net 10 can be expanded to facilitate the insertion / removal work.

Moreover, since the open handle plate 6a guides the insertion / removal of the receiving net 10 by the corner portion 29a formed on the inner surface side of the base end portion, the receiving net 10 is expanded while the insertion / extraction port is expanded. It is not permissible to insert it in a predetermined position, and the operation force during insertion / removal can also be reduced.

Further, since the guide groove 29b is formed in the corner portion 29a so as to correspond to a predetermined position of the horizontal rail 10b, the receiving net 10 can be inserted with the horizontal rail 10b fitted in the guide groove 29b. For example, it is possible to set the receiving net 10 at a predetermined position while controlling the positional deviation in the front-rear direction.

The pushing surface portion 29c formed on the lower side of the corner portion 29a contacts the base end surface of the receiving net 10 when the handle plate 29 is closed, and raises it slightly to the rear side. Since it acts like pushing in, the receiving net 10 can be set at a predetermined position, and it is possible to avoid increasing the operating force of the handle plate 29 because the action of the lever also works during the pushing.

The engaging hole 29d formed in the pushing surface portion 29c engages with the engaging pin 31 protruding from the base end face of the receiving net 10 when the handle plate 29 is closed. Permitting the positioning of the base end side of the receiving net, it is possible to support without rattling.

Further, since the engaging pin 31 is provided so as to project slightly downward, the engaging pin 31 is hooked on the lower end portion of the engaging hole 29d when the handle plate 29 is closed. As a result, even if a load is applied due to the rotation of the handling cylinder, the receiving net 10 can be prevented from coming off, and the receiving net 10 can be pulled out a little in front as the handling port plate 29 is opened.
The operation force at the beginning of pulling out can be reduced.

Further, since the hook plate 32 for locking the handle plate 29 in the closed position is provided on the outer surface side of the left end portions of the front and rear frames 7, 8 so as to be vertically rotatable, the handle plate 29 is provided. It becomes possible to make the front-back width of the handling chamber 6 substantially coincide with the front-back width of the handling chamber 6, and as a result, the outer shell strength of the handling chamber 6 can be improved.

Further, the operation lever 32a integrally welded to the hook plate 32 is in a vertical posture along the side surface of the handling chamber at the engagement operation position, and is in an inclined posture at the engagement release operation position outside. Although it protrudes in the direction, it is arranged close to the inside of the threshing hood chain assembly A which can be rotated up and down, and therefore, at the disengagement operation position, the threshing food chain assembly A must be rotated to the working position. When it is possible to recognize the disengaged state by disturbing the hook plate 32 and the engagement of the hook plate 32 is insufficient, the threshing food chain assembly A that descends presses the hook plate 32 naturally. Can be pushed into the engaging position.

Further, when the straw cutting sickle 23 is arranged in the handling room 6, the straw cutting sickle 23 is fixed to the handling room 6 side without being provided in the receiving room 10. The operation force can be reduced, and the straw cutting sickle 2
Since the mounting groove 24b for supporting and positioning the receiving net tip side is formed in the mounting bracket 24 for mounting 3, the structure can be simplified based on sharing of parts.

Furthermore, since the engagement groove 24b is formed in a U-shaped groove shape so as to engage with the pipe material P at the tip of the net, when the engagement pin is engaged with the engagement hole. The engaging operation can be simplified as compared with the above.

[0025]

In summary, since the present invention is constructed as described above, the receiving net arranged along the lower side of the handling cylinder can be provided from the handling opening side provided on one side surface of the handling chamber. Although it is configured to be detachable, the handle plate that covers the lower portion of the handle of the handle chamber can be opened outward with the lower end side as a fulcrum, so the outlet of the catch net can be expanded. In addition, the opened handle plate guides the insertion / removal of the receiving net by the insertion / removal guide portion formed inside. Therefore, although it is possible to easily insert and remove the receiving net from the expanded insertion / removal opening, the receiving net can be inserted into a predetermined position by the guide action of the insertion / removal guide portion, and as a result, the receiving net is inserted / removed. It is possible to improve workability at the time.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a combine.

FIG. 2 is a side view of a threshing unit showing a working state.

FIG. 3 is a side view of the same showing a raised state of the threshing feed chain.

FIG. 4 is a front view of a threshing unit showing a working state.

FIG. 5 is a front view of the same showing an open state of the handle plate.

FIG. 6 is a front view of the same showing a state where the receiving net is inserted and removed.

FIG. 7 is a side view of the essential parts of the threshing unit showing a working state.

FIG. 8 is a side view of the same showing an open state of the handle plate.

FIG. 9 is a front sectional view of a main part of a threshing section showing a working state.

FIG. 10 is a perspective view of a handling room frame.

FIG. 11 is a side view of the handle plate.

FIG. 12 is a front view of the same.

[Explanation of symbols]

 1 Combine 3 Threshing Part 6 Handling Room 6a Handling Port 10 Receiving Net 10b Side Rail 23 Straw Sickle 24 Mounting Bracket 24a Engaging Groove 29 Handling Port Board 29a Corner 29b Guide Groove 29c Pushing Face 29d Engaging Hole 31 Engaging Pin 32 Hook plate 32a Operation lever 33 Fixing pin

Claims (5)

[Claims] 1. A receiving net is arranged along a lower side of a handling barrel in a handling room having a handling opening on one side, and the receiving net is
In a threshing device configured to be freely inserted and removed from the handling port side, a handling port plate that covers the lower portion of the handling port of the handling chamber is configured to be openable and closable outward with the lower end side as a fulcrum, and the inside of the handling port plate. The threshing device is characterized in that a removing / inserting guide part is formed in the part for guiding the inserting / extracting net when it is opened. 2. A threshing device, characterized in that the guide portion of claim 1 is provided with a guide groove for guiding a horizontal rail of the receiving net facing in the inserting / removing direction. 3. A threshing device, wherein the handle plate of claim 1 is formed with a push-in portion for pushing the base end portion of the receiving net when closed. 4. The threshing device according to claim 3, wherein a positioning engaging portion that engages with the base end portion of the receiving net when the pushing portion is closed is formed. 5. In disposing the straw cutting sickle in the handling room according to claim 1, the straw cutting sickle is assembled to a bracket member fixed to the handling room, and the bracket member further includes a tip end portion of a net. A threshing device, which is characterized in that a positioning engaging portion that engages with is formed.