JP2000032834A - Threshing and screening apparatus for combine or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the attaching and detaching work of a side cover of a threshing chamber and enable easy work of the maintenance, etc., of a straw- pressing means. SOLUTION: A side cover covering the side face of a feed chain (c) of a threshing chamber is positioned out of a side face of a straw-pressing means 22 for pressing straw on the feed chain (c) and covers from the height of the feed chain (c) to the upper face of the threshing chamber. The side cover is composed of a lower side cover 17 to cover a side of the straw pressing means 22 from outside and an upper side cover 16 to cover the part above the straw- pressing means 22. The upper cover 16 is integrally fixed to the upper face cover of the threshing chamber and the lower cover 17 is detachably attached to a fixing member 18 suspended from the upper cover.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing and sorting apparatus for combine and the like.

[0002]

2. Description of the Related Art In a threshing and sorting apparatus in a combine, one side of a handling chamber of the apparatus is provided with a feed chain along a handling cylinder axis and a straw holding means for holding straw on the feed chain. ing. Outside the straw holding means, a side cover is provided to cover the side of the handling room from the height of the feed chain to the height of the handling room upper surface.

At present, the side cover is formed as a single unit and is detachably attached to the upper cover of the handling room. For example, when the maintenance of the straw holding means (lubrication, height adjustment, etc.) is performed, etc. Is to be removed.

[0004]

In the above-described threshing / sorting apparatus, the side cover is relatively large and heavy.
Due to the mounting structure of the side cover, the attachment / detachment process cannot be easily performed, and the maintenance of the straw holding means is troublesome.

In addition, in the vicinity of the feed chain, particularly when the cut straw is manually supplied to the feed start end of the feed chain, an accident such as not only the straw but also the hand or the clothes being wound on the feed chain may occur. Things can happen. An object of the present invention is to provide a threshing / sorting device such as a combine which can address such a problem.

[0006]

In order to achieve the above object, the combine of the present invention covers a side surface of the handling room on the feed chain side, and is provided beside the straw holding means for holding straw on the feed chain. A side cover which is located outside and covers the height of the feed chain from the height of the feed chain to the upper surface of the handling room; a lower cover which covers laterally outward of the straw holding means; and an upper cover which covers above the straw holding means. The upper cover is fixed to the same body as the upper cover of the handling room, and the lower cover is detachably attached to a fixing member hanging from the upper cover.

[0007] The lower cover is much smaller and lighter than the conventional side cover integrated with the upper cover. Further, when the lower cover is removed, the straw holding means comes to appear, so that maintenance and the like of the straw holding means can be performed only by attaching and detaching the lower cover.

The above invention is embodied as follows. That is,
The upper edge of the lower cover is positioned by the engagement protrusion and the engagement hole into which the engagement protrusion is inserted, and the lower edge of the lower cover is fixed to the fixing member suspended from the upper surface cover via a knob bolt. Configuration. As a result, the lower cover can be easily attached and detached without using any tools.

The above invention can be developed as follows. That is, by operating the operation unit provided near the feed chain, the straw holding unit of the straw holding unit is separated upward from the feed chain. In this case, the emergency stop switch can be immediately operated by the worker who works such as manually supplying the cut stem to the feed chain. Even if is pulled in while being held, the straw holding means is immediately displaced upward, and is pulled out before it becomes important.

In this case, it is preferable that the straw holder is separated upward from the feed chain via a mechanism that does not use electric components. This eliminates the need for engaging the lower cover with a harness or the like of an electrical component that makes attachment and detachment of the lower cover difficult.

In addition, an emergency stop switch of the prime mover for driving the feed chain is provided at the front of the upper cover. In this case, the emergency stop switch is immediately operated by the worker who supplies the harvested stem and stem to the feed chain, and the motor is stopped, and the emergency stop switch is provided on the upper cover. The provision of the switch eliminates the need to attach the switch harness to the lower cover.

Alternatively, the emergency stop switch of the prime mover that drives the feed chain is a film-type touch sensor type and is attached over a long range in the feed chain direction portion on the outer surface of the upper cover or the lower cover. Wearing configuration. In this case, the emergency stop switch can be operated immediately by the person even when the hand or the clothes are sandwiched between the feed chain and the straw holding means and pulled toward the transport side. Or, it does not protrude greatly from the outer surface of the lower cover.

[0013]

FIG. 1 is a perspective view of a combine according to an embodiment of the present invention, FIG. 2 is a plan view of the combine, FIG. 3 is a partial plan view showing a cover arrangement of a main part of the combine, FIG. 4 is a side view showing a cover arrangement of the main part, and FIG. 5 is a view showing a cover used on a side surface of the main part.

Referring to the combine shown in FIGS. 1 and 2, reference numeral 1 denotes a traveling unit supporting a machine base 2, which includes a cutting unit 3, a maneuvering unit 4, a threshing / sorting unit 5, a kernel processing unit. 6. A straw processing unit 7 is provided.

The threshing / sorting apparatus 5 holds and moves the handling room provided with the handling drum a, the processing room provided with the processing drum b, and the straw cut by the reaper 3 together with the straw holding means described later. Feed chain c, a sorting unit disposed below and behind the handling room, and the like. The straw harvested by the cutting unit 3 is threshed by the handling cylinder a or the processing cylinder b, and the obtained paddy is sorted by the sorting unit. The rice is carefully selected, and the selected rice is taken out by a first horizontal auger (not shown) or a fry conveyor 8.

The grain processing unit 6 is a vertical auger 9 for discharging paddy, which is held upright at the rear right side of the threshing and sorting apparatus 5, and is communicated with the vertical auger 9 so that it can be raised and lowered in the direction of arrow f1 shown in FIG. There is provided a horizontal auger 10 and a paddy tank 11 to which paddy is supplied from a fry conveyor 8, and the paddy in the paddy tank 11 is discharged through the vertical auger 9 and the horizontal auger 10.

Next, a front cover forming the outer peripheral surface of the threshing / sorting apparatus 5 will be described with reference to FIGS. The front cover includes a right upper cover 12a that covers the upper surface on the right side of the handling room, a left upper cover 12 that covers the upper surface on the left side of the handling room, a right side cover 13 that covers the right side surface of the handling room, Left side cover 1 that covers the range from the height of the feed chain c to the upper surface of the handling room on the left side of the handling room
4, and a front cover 15 for covering the front of the handling room.

The right upper cover 12a has a substantially planar shape, and is bolted to a threshing section frame fixed to the body 2 of the machine. The left upper cover 12 has a substantially planar shape, and is connected to the left edge of the right upper cover 12a via a hinge joint d so as to be vertically swingable as shown in FIG.

At this time, each hinge joint d is composed of a fulcrum pin and a tubular member into which the fulcrum pin is detachably inserted. Generally, the fulcrum pin is fixed to the right upper cover 12a, and The upper left cover 12 is fixed to the left upper cover 12, and if necessary, the upper left cover 12 is moved in the front-rear direction f2 to separate the connection between the fulcrum pin member and the tubular member so that the left upper cover 12 can be removed from the right upper cover 12a. is there.

The left side cover 14 is formed by the upper cover 16 and the lower cover 17 as shown in FIGS. At this time, each of the covers 16 and 17 is formed as a single body. As shown in FIG. 5, the upper cover 16 is formed of a thin steel plate and includes a vertical surface e1, an upper end surface e2, a front end surface e3, and a rear end surface e4.

At this time, a concave portion g into which the lower cover 17 is fitted is formed below the vertical surface portion e1, and a lower edge g1 of the vertical surface portion e1 in a range where the concave portion g is present is directed forward and backward. Is formed in an arc shape.

The lower edge g1 is formed with an edge e5 in which the vertical surface e1 is slightly extended downward and is bent inward, and two portions in the middle of the length of the edge e5 are directed forward and backward. , Long engagement through holes e6, e6 are formed. An inwardly projecting piece e7 is fixed to the inner surface of the recess g in the vicinity of the vertical side part g2, and this projecting piece e7 is also provided with an engaging through hole e8. Further, a front portion of the vertical surface portion e1 is provided with a lock lever through hole e9 which is long in the vertical direction, a handle through hole e10 which is long in the horizontal direction, and a switch through hole e11.

A hook for hanging the upper cover 16 at a specific position on the outer end of the upper left cover 12 is provided near three appropriately separated positions along the length of the inner end of the upper end surface e2. Part e12 is formed, and the front end face part e3
A horizontally long engaging through-hole e13 is formed in the lower part of.
In addition, a bolt hole e14 is formed at an appropriate location.

On the other hand, most of the lower cover 17 is formed of a thin steel plate and has a vertical surface h1, an upper inclined surface h2, a rear inclined surface h3, and a front end surface h4. At this time, an edge h6 is formed on the arc-shaped upper edge h5 of the upper inclined surface h2 by slightly extending the inclined surface h2 and bending inward. The engagement pin h inserted into the engagement through holes e6, e6.
7, h7 are provided upright.

An edge h9 is formed on the edge of the vertical rear side h8 of the rear side inclined surface h3 in such a manner that the inclined surface h3 is slightly extended and bent inward. Is provided with an engagement pin h10 that is inserted into the engagement through hole e8 in a protruding rearward direction. On the upper edge of the front end face h4, an engagement protruding piece h11 is formed in which a part of the front end face h4 is extended upward and then bent rearward. Further, two vertically elongated knob bolt through holes h12 and h12 are provided below the vertical surface portion h1.

Next, handling of the upper cover 16 and the lower cover 17 at the time of attachment and detachment will be described with reference to FIGS. In mounting the upper cover 16, first, each hook portion e12 of the upper cover 16 is hung at a specific location on the outer end of the left upper cover 12, and the upper cover 16 is hung by the hook portion e12. A bolt is fixed to the vertical fixing member 18 which protrudes from the top cover 12 in a hanging manner through a bolt hole.

At this time, a conventionally existing lock lever 19, which is vertically rotatably mounted on the vertical fixing member 18, is directed from the inside to the outside in the lock lever through hole e9 as shown in FIG. In addition, the handle 20 shown in FIG. 1, which is provided in a fixed manner on the vertical fixing member and is conventionally provided, shown in FIG.

The upper cover 16 is set at the mounting position by lifting the cover to a certain height and then moving it almost horizontally from the outside to the left side surface of the handling chamber. Therefore, the through hole e9 for the lock lever and the handle are provided. The through-hole e10 for use becomes almost unnecessary to consider the size of an extra opening for enabling the cover to swing when the cover is attached.

In mounting the lower cover 17, first, the upper portion of the lower cover 17 is brought close to the concave portion g of the upper cover 16 from the front side of the fuselage, and the two engaging pins h7, h7 are inserted through the engaging through holes e.
6, e6, and in this state, it is further moved rearward so that the engagement pin h10 is inserted into the engagement through hole e8. At the same time as the insertion of the pin h10, the engagement protrusion h11 is inserted into the engagement through hole e13. As a result, the lower cover 17 is positioned so as to closely match the recess g of the upper cover 16.

Thereafter, the screw portion of the knob bolt 21 is screwed and fixed to the vertical fixing member 18 suspended from the left upper cover 12 through the knob bolt through hole h12. When removing the lower cover 17 assembled as described above, the procedure of attaching the lower cover 17 is reversed.

By the way, when the covers 12, 16 and 17 are completely attached, these covers are formed as hook-shaped integral covers via the vertical fixing members 18.
When swinging the integral cover around the hinge joint d, the tip of the lock lever 19 is pulled up to release the conventional lock mechanism for keeping the cover closed, and then the handle 20 is pulled up. Thus, when the integral cover is swung upward, the upper surface and the left side surface of the handling chamber are opened. In addition, the straw holding means described below is moved integrally with the integral cover.

FIG. 6 is a left side view of the threshing and sorting section, FIG. 7 is a side view of the straw holding device, and FIG. 8 is a front view of the straw holding device. As shown in FIG. 6, straw holding means is provided near the inside of the lower cover 17. The straw holding means includes a straw holding section 22 whose lower surface is in contact with the straw on the feed chain c, a straw holding table 23 supporting the straw holding section 22,
Vertical guide means 24 for guiding the straw holder 23 so as to be movable up and down; position holding means 25 for holding the straw holder 23 at a lower position (a position shown by a solid line in FIGS. 7 and 8); And a pulling means 26 for pulling up the straw holder 23 to an upper position.

More specifically, the straw holder 23
The feed chain c has the same inclination as that of the feed chain c. The front and rear portions of the feed chain c are guided by a pair of vertical guides 27 provided at the front and rear portions of the vertical fixing member 18 so as to be vertically displaceable. Guides 28, 28 are fixed.
Here, the vertical guide 27 and the guided body 28 constitute the vertical guide 24.

A tension spring is provided between the straw holder 23 and the spring supporting member 29 projecting from the vertical fixing member 18 as a pulling means 26 for exerting a required tensile force. I have. As shown in FIG. 7, an arm 30 projecting forward is mounted on the tip of the straw holder 23 so as to be swingable about an axis 31. The arm 30 supports a straw supply guide rod 32.

The straw holding portion 22 has a plurality of pressing plate members 33 arranged in a line in the front-rear direction, and a shaft 34 is connected between adjacent members 33 so as to be able to bend slightly in the vertical direction. The upward guiding plate member 35 is fixed.

At a plurality of places along the length of the straw holder 22, a vertical support guide rod 37 having a lower end attached to a shaft 36 is provided.
Is provided, and each support guide rod 37 is provided on the upper part of the straw holder 2.
3 is slidably inserted into the vertical hole 23a provided in the vertical hole 23a, and is prevented from coming out of the vertical hole 23a. Further, a spring 38 is provided between the straw holding table 23 and the straw holding section 22. Is extrapolated to a compressed state. At two locations in the front-rear direction of the lower surface of the straw presser 23, operating parts 39 for pushing down the straw presser 23 against the elasticity of the tension springs 26, 26 are provided in an outwardly extending shape.

A support piece 40 is fixed to the upper cover 16 as shown in FIG.
A spring 42 is provided between the lever member 41 and the upper cover 16 to swing the lever member 41 in the direction of arrow f3.

A locking plate 43 which is long in the front-rear direction is fixed to the lower end of the lever member 41, and the upper end of the lever member 41 is pushed into the upper cover 16 in the switch insertion hole e11. The button switch 44 is fixed. At this time, the locking plate 43 and the lever member 41 constitute the position holding means 25, and the push button switch 44 constitutes an operating section for operating the lifting means 26 to lift.

The handling and operation of the above-described straw holding means will now be described. In a normal use state, the straw holder 23 is located at a lower position indicated by a solid line in FIGS. 7 and 8, and the position is held by the position holding means 25.

When the stems and culms of the rice and the like that have been cut off by the cutting unit 3 are sent to the feed start end of the feed chain c, the stems and culms are placed on the feed part of the feed chain c, and thereafter the feed chain c moves. As a result, it is conveyed diagonally rearward and upward in the same body as the feed chain c. This stem is held down by the straw supply guide rod 32 during the transport of the feed chain c, and is guided to the lower surface of the straw holding section 22.

The straw presser 22 presses the stem culm conveyed on the lower surface thereof downward with the elasticity of the spring 38,
The stem is held together with the feed chain c until the stem reaches the rear end of the straw holder 22, in other words, until the stem leaves the handling room.

By the way, the stems and stems that cannot be cut by the cutting unit 3 of the combine may be manually cut by an operator and supplied to the starting end of the feed chain c. For example, in such a case, Inadvertently, a hand or clothing may be caught between the feed chain c and the straw holding means and a danger may occur. In such a case,
The user immediately operates the push button switch 44 by himself.

As a result, the lever member 41 swings in the direction opposite to the arrow f3, and the locking plate 43 is disengaged from the upper surface of the straw holder 23, and the straw holder 23 is immediately pulled up by the elasticity of the tension spring 26, and FIG. Is moved to the upper position indicated by the virtual line k. This movement of the straw holder 23 also raises the straw holder 22 upward through the vertical support guide rod 37, and the lower surface of the straw holder 22 is separated from the feed chain c by several cm.

Accordingly, the hand or clothing sandwiched between the feed chain c and the straw holding means can be easily and immediately extracted without stopping the prime mover for driving the feed chain c and the handling cylinder. .

Thereafter, in order to start the threshing operation again, it is necessary to move the straw holder 23 to a lower position and hold it. Therefore, first, the knob bolt 21 is removed, and the lower cover 17 is separated from the upper cover 16 and removed.
Next, the user holds the operation unit 39 and pushes down the straw holder 23 against the elasticity of the tension springs 26, 26. Straw holder 2
3 reaches the lower position, the locking plate 43
Swinging in the direction of arrow f3 with the elasticity of, and is positioned on the upper surface of the straw holder 23, and the straw holder 23 is held at the lower position. Thereafter, the user releases the operation unit 39 to fix the lower cover 17 at the original position.

The attachment and detachment of the lower cover 17 can be performed independently of the position holding means 25 since the position holding means 25 is mounted only in relation to the upper cover 16, so that it is not troublesome. Only needs to be done.

Next, the emergency stop device of the prime mover will be described with reference to FIG.
This will be described with reference to FIG. FIG. 9 is a diagram showing a left side surface of the threshing sorting unit device. In the vicinity of the feed chain c, an emergency stop switch 45 of a prime mover (not shown) for driving the feed chain c and the handling cylinder a is provided. The emergency stop switch 45 is used in the event of clogging of stems and the like during threshing or in the event of a personal injury. This emergency stop switch 45
When the is mounted on the side cover of the handling room, the lower cover 17 is provided on the upper cover 16 so that the attachment / detachment of the lower cover 17 is not damaged by the switch harness or the like.

At this time, the switch 45 is of a film-type touch sensor type, and is attached from the foremost part to the last part of the upper cover 16. The touch sensor type is one that operates intermittently with a simple touch.

When the switch 45 is locally provided, the switch 45 is provided near the lock lever 19 so as not to protrude outward beyond the tip of the lock lever 19. When the emergency stop switch 45 is turned on and operated, the prime mover stop command is held in a control device (not shown) and the prime mover is stopped, and when the prime mover is started again, after the prime mover stop command is canceled, To do.

[0050]

According to the present invention configured as described above, the following effects can be obtained. That is, according to the first aspect, it is sufficient to remove and attach only the lower cover which is relatively small and light in maintenance management of the straw holding means, and the lower cover is detached at a low position. As a result, the work of attaching and detaching the cover accompanying the maintenance and the like of the straw holding means can be performed very easily. Also, since the lower cover does not need to be fitted with electrical parts or the like that make it difficult to attach and detach the lower cover, handling is also easy in this respect. In addition, since the upper cover is not intended to be attached or detached, the insertion hole for the lock lever, handle, etc. provided on this upper cover should be enlarged in consideration of swing around a certain fulcrum at the time of detachment. Is not needed, and it is small and looks good.

According to the second aspect, the lower cover can be easily attached and detached without using any tools. According to the third aspect, even if the worker who is performing the work of supplying the cut stems and the like to the feed chain by hand is gripped by the feed chain and the straw holding means and the hand or clothing is pulled in, the straw is removed. The holding means can be immediately displaced upward and pulled out, so that danger can be avoided before the hand or the like reaches the cutter of the straw processing section. In addition, since the prime mover can continue rotating irrespective of the upward displacement of the straw holding means, a decrease in work efficiency is prevented.

According to the fourth aspect, the lower cover does not need to be engaged with a harness or the like of an electric component that makes it difficult to attach and detach the cover. That is, the attachment / detachment of the lower cover is not impaired by the harness. According to claim 5,
When performing work such as manually feeding cutted stems to the feed chain, or when clogging due to stems or the like or personal injury occurs, the operator can stop the prime mover immediately without moving. In addition, the provision of the emergency stop switch on the upper cover does not require the lower cover to be engaged with the harness of the switch, thereby facilitating the attachment and detachment of the lower cover.

According to the sixth aspect, the emergency stop switch can be operated from anywhere when the hand or the clothes are sandwiched between the feed chain and the straw holding means and pulled toward the transport side. Yes, the operator can stop the prime mover immediately by touching the emergency stop switch lightly, and the emergency stop switch does not protrude greatly from the outer surface of the upper cover or the lower cover, and the appearance is good. In addition, it is possible to avoid an increase in the overall width of the body.

[Brief description of the drawings]

FIG. 1 is a perspective view of a combine according to an embodiment of the present invention.

FIG. 2 is a plan view of the combine.

FIG. 3 is a partial plan view showing a cover arrangement of the combine threshing and sorting apparatus.

FIG. 4 is a side view showing a cover arrangement of the threshing / sorting apparatus.

FIG. 5 is a view showing a cover used on a side of the threshing / sorting apparatus.

FIG. 6 is a left side view showing a threshing and sorting unit of the combine.

FIG. 7 is a side view showing the straw holding device of the combine.

FIG. 8 is a front view showing the straw holding device of the combine.

FIG. 9 is a left side view showing the threshing / sorting device for the combine.

[Explanation of symbols]

 12 Top Cover 16 Upper Cover 17 Lower Cover 18 Fixing Member 21 Knob Bolt 22 Straw Holder (Straw Holder) 44 Push Button Switch (Operation Unit) 45 Emergency Stop Switch c Feed Chain e6, e8 Engagement Hole h6 Edge h7, h10 Engagement pin (engagement protrusion)

Claims (6)

[Claims] The present invention covers a side surface of a handling room on a feed chain side, and is positioned laterally and outside of a straw holding means for holding straw on the feed chain. A side cover to be covered is formed by a lower cover that covers the lateral outside of the straw holding means and an upper cover that covers above the straw holding means, and the upper cover is fixed to the upper cover of the handling chamber and the same body. A threshing / sorting device such as a combine, wherein the lower cover is detachably attached to a fixing member hanging down from the upper cover. 2. An upper edge portion of the lower cover is positioned by an engagement projection and an engagement hole into which the engagement protrusion is inserted, and a lower member of the lower cover is suspended from the upper surface cover via a knob bolt to a fixing member. The threshing apparatus for a combine or the like according to claim 1, wherein the threshing apparatus is fixed. 3. The combine as claimed in claim 1, wherein the operation of the operation unit provided in the vicinity of the feed chain causes the straw holding unit of the straw holding means to be separated upward from the feed chain. Threshing equipment. 4. An operation unit provided in the vicinity of the feed chain is operated so that the straw holding unit of the straw holding unit is separated upward from the feed chain by a mechanism not using an electric component. Claim 1
Or a threshing device such as the combine described in 2 above. 5. The threshing apparatus for a combine or the like according to claim 1, wherein an emergency stop switch of the prime mover for driving the feed chain is provided at a front portion of the upper cover. 6. An emergency stop switch of a prime mover, which drives a feed chain, is of a film-type touch sensor type, and extends over a long range in a feed chain direction portion on an outer surface of an upper cover or a lower cover. The threshing device for a combine or the like according to claim 1, 2, 3, or 4, wherein the threshing device is attached.