JP2009027992A - Grass divider structure of combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grass divider structure of a combine harvester, capable of properly dividing the grass regardless of the kinds of crops. <P>SOLUTION: The grass divider structure of the combine harvester can switch a guide 62 to the first state in which the guide 62 is extended frontward from the front end of the divider 31, and the second state in which the guide 62 is extended rearward from the front end of the divider 31. For example, when reaping buckwheat, the guide 62 is set at the first state to enable the proper grass division because the entwinement of stems is released by the guide 62. On the contrary, when reaping rice, the guide 62 is set at the second state to prevent grains from dropping before being reaped. As a result, the proper grass-dividing can be carried out regardless of the kinds of the crops because the structure of the guide 62 can be changed to the suitable one according the kinds of the crops without detaching and attaching the guide 62. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a weed divider structure of a combined straw type combine used mainly for harvesting multiple types of grains such as soybeans and buckwheat.

  At the foremost part of the combine, a reaping device capable of reaping cereal grains in front of the fuselage is provided. When the fuselage of the combine moves forward, the cereals in front of the fuselage enter the reaping device, and the entered cereals are harvested by the cutting blade in the reaping device. In order to perform cutting efficiently, a weeding mechanism for weeding cereals inside and outside the cutting width is provided at the side end of the cutting device.

  In whole harvesting type combine harvester that harvests and threshes multiple types of grains such as soybean and buckwheat, not limited to rice and wheat, regardless of the type of grain, weeding by weeding mechanism, It is desirable to be able to do it properly. However, since the state of cereals (for example, cereal height, stock spacing, stem fraying, etc.) varies greatly depending on the type of cereal, all cereal weeds have the same weed divider structure. It is difficult to do with a weeding mechanism. In particular, when the cereal to be harvested is buckwheat, the stem extends sideways from the vicinity of the stock so that it crawls the ground, or many stems are intertwined between the stock, so this is appropriate. In order to weed, it is necessary to devise some device to the weeding mechanism.

In order to efficiently weed the buckwheat, there is disclosed a combined weed divider structure provided with a fixed weeding tool and a guide tool that extends in a cantilevered manner in front and above the fixed weeding tool ( For example, see Patent Document 1). In this way, the tangled buckwheat stalks can be loosened to some extent by the guide tool before weeding with the fixed weed tool, so that it becomes easy to weed with the fixed weed tool.
Japanese Patent Publication No.8-17626

  However, in the all-throw type combine harvester, after harvesting and threshing buckwheat, rice and soybeans may be harvested and threshing. Unlike buckwheat, rice and soy grow almost upright, and there is a granulated part almost directly above the stock. In this case, only the weeding tool is sufficient to perform weeding, and if the guide tool remains attached in front of it, it will fall on the granulated portion of the cereal and fall on the guide tool, and the efficiency of cutting will be reduced. Therefore, it is necessary to remove the guide tool from the weeding mechanism. That is, in this weed divider structure, it is necessary to remove the guide tool every time the type of grain to be cut and threshed changes, and the time required for the removal is required. In addition, the attaching / detaching operation of the guide tool that requires screwing or unscrewing becomes very complicated for the operator.

  The present invention has been made in view of such problems, and provides a combined weed divider structure capable of performing appropriate weeding, cutting and threshing efficiently regardless of the type of grain. The purpose is to do.

  According to the present invention, there is provided a combine divider structure for dividing a harvested cereal in front of a combine harvester, and a weed body disposed so as to protrude in front of a side end of the harvester; One of the first state supported by the weed body so as to extend forward from the front end and the second state supported by the weed body so as to extend rearward from the front end of the weed body. And a rod-shaped guide that extends upward from the front end of the weed body in the first state.

  The guide has one end connected to the herbaceous body via a rotating shaft, and can be switched between the first state and the second state by the rotation of the rotating shaft. It is good also as being.

  The guide may be provided with a locking portion that is locked with the front end of the weed body in the first state.

  According to the above invention, according to the type of grain to be cut and threshed, the first state where the guide of the rod-like body is supported so as to extend rearward from the front end of the weed body, and the front of the weed body. A combine weed divider structure is provided that is switchable to a second state that is supported to extend forward from the end. The first state is suitable for cereals such as cereals with entangled stems, which are difficult to divide only with a herbaceous body, and the second state is a cereal that is sufficiently easy to weed with only the herbaceous body. Suitable for wrinkles. According to the present invention, since the structure can be changed to a suitable one according to the type of grain without removing the guide, appropriate weeding is performed regardless of the type of grain. Will be able to.

  Furthermore, according to the combine of the present invention, the weeding device structure can be switched between the first state and the second state with a simple configuration of the rotating shaft, so that the handling is easy. Can do.

  Furthermore, according to the combine of this invention, since the guide has the latching | locking part latched by the front end of the weeding body in a 1st state, the guide in a 1st state has the latching | locking part Thus, the guide posture in the first state can be stabilized.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a side view of the entire combine A according to an embodiment of the present invention, and FIG. 2 shows a top view of the entire combine A. Combine A is an all-throw-in type combine that harvests and threshes multiple types of cereals such as soybean and buckwheat, as well as rice and wheat. In FIG. 1 and FIG. 2, the combine A is facing the left side. As shown in FIGS. 1 and 2, in the combine A, a cutting unit 2 as a cutting unit is attached in front of the traveling machine body 1. The traveling machine body 1 can be moved forward or backward by the configuration described later, and when the traveling machine body 1 moves forward, the cereals in front of the traveling machine body 1 enter the cutting unit 2 and enter. The cereal husk is cut in the cutting unit 2.

  First, the configuration of the traveling machine body 1 will be described. In the traveling machine body 1, the machine body frame 4 is provided on a pair of left and right crawler type traveling parts (3, 3) that can move forward or backward. A threshing unit 5 is disposed on the upper left side above the body frame 4, and a sorting unit 6 is disposed below the threshing unit 5. An operation part 7, a storage part 8, a prime mover part 9, and a grain carry-out auger 10 are arranged on the upper right side on the machine body frame 4 from the front to the rear.

  The threshing unit 5 is provided with a handling room 22. In the handling chamber 22, an axial flow type screw-shaped handling cylinder 11 is horizontally mounted such that its axis is in the front-rear direction. In the threshing unit 5, the handling cylinder 11 rotates around the axis, whereby the cereals harvested by the reaping unit 2 are threshed.

  The sorting unit 6 includes a swinging sorter 12 that swings and sorts the grains threshed by the threshing unit 5, and a first tang 13 that further wind-sorts the sorting selected by the swinging sorter 12. And the 2nd Karatsu 14, the 1st conveyor 15 which collects the first grain wind-selected by these Karatsu 13 and 14, the 2nd conveyor 16 which collects the 2nd grain, etc. are provided.

  In the operation unit 7, an operation column 18 is erected on the front portion in the cabin 17. Various operation systems such as a handle 19 are provided at the upper end of the operation column 18. In this operation system, an elevating lever for elevating the mowing unit 2 and the like are included. A driver's seat 20 is disposed behind the handle 19.

  The storage unit 8 stores the first grain collected by the first conveyor 15 provided in the sorting unit 6.

  The motor unit 9 is equipped with an engine 21 and the like. By driving the engine 21, each component unit, that is, the cutting unit 2, the traveling unit 3, the threshing unit 5, the sorting unit 6, the storage unit 8, and the grain The grain carrying out auger 10 operates.

The grain carrying out auger 10 carries out the first grain stored in the storage unit 8 to a loading platform of a transport vehicle.

  Next, the cutting unit 2 will be described. The harvesting unit 2 is provided with a rectangular cylindrical feeder house 25. In the feeder house 25, a conveyer 35 is disposed. A carry-out port 26 opened at the rear end of the feeder house 25 is connected to the handling chamber 22 of the threshing unit 5 in communication. The feeder house 25 has a base end portion (rear end portion) pivotally supported by the front portion of the threshing portion 5 so as to be rotatable about a horizontal axis. Thereby, the feeder house 25 can be extended and lowered in the front-rear direction with respect to the body frame 4.

  The right rear portion of the platform 28 is connected to the carry-in entrance 27 opened at the front end of the feeder house 25. A lateral feed auger 29 is installed horizontally in the platform 28 so that its axis is in the left-right direction. A reciprocating-type cutting blade 30 is provided at the front end edge of the platform 28 located at the front lower side of the lateral feed auger 29. Dividers 31 serving as weed bodies are disposed in front of the cutting blades 30 and at the front end portions of the left and right side walls of the platform 28, respectively. The divider 31 is disposed so as to protrude forward of the side end portion of the harvesting portion 2 of the combine A, and the front end thereof has a pointed shape (triangular pyramid shape) in order to facilitate weeding. Yes. A take-up reel 33 is disposed above the divider 31 via an elevating mechanism 32.

  In the cutting unit 2 configured in this manner, the divider 31 and the take-up reel 33 cooperate to drive the uncut cereal grains within a predetermined cutting width toward the platform 28, and The stock is cut by the cutting blade 30, and the harvested cereal is laterally fed to the substantially central portion by the lateral feed auger 29, and conveyed into the feeder house 25 from the carry-in entrance 27 of the feeder house 25.

  Then, the cereals conveyed into the feeder house 25 are slid along the bottom of the feeder house 25 along the bottom of the feeder house 25 by the conveying slats of the conveying conveyor 35, and the feeder house 25 is loaded. It is conveyed from the outlet part 26 into the handling chamber 22 of the threshing part 5.

  In addition, the cutting part 2 can be moved up and down as a whole by raising and lowering the feeder house 25 by the driving operation of the operator of the driving part 7, and the cutting height of the crop can be adjusted by the cutting part 2. Yes.

  Here, the weed divider structure including the divider 31 will be described in more detail. FIG. 3 shows an enlarged side view in the vicinity of the divider 31. As shown in FIG. 3, a rotating shaft 61, a guide 62, and a side divider 63 are attached to the divider 31. In FIG. 3, only the vicinity of the left divider 31 is shown, but since the right weed divider structure is the same, the description of the right weed divider structure is omitted.

  The rotating shaft 61 is a rotating shaft whose axis is orthogonal to the traveling direction of the combine A. The rotating shaft 61 is attached slightly behind the triangular pyramid-shaped portion of the divider 31.

  The guide 62 is a curved metal bar. One end of the guide 62 is connected to the divider 31 via the rotating shaft 61. As indicated by a double-headed arrow, the guide 62 can be rotated back and forth using the rotation shaft 61 as a rotation fulcrum. This rotation work can be performed by an operator.

  As a result, the guide 62 can be supported by the divider 31 so as to extend rearward from the front end of the divider 31 as indicated by a solid line, but as indicated by the alternate long and short dash line, the divider 31 is provided. It can also be set as the state supported by the divider 31 so that it may extend ahead rather than the front end. Hereinafter, a state in which the guide 62 extends forward from the front end of the divider 31 is referred to as a “first state”, and a state in which the guide 62 extends rearward from the front end of the divider 31 is referred to as a “second state”. "

  As shown in FIG. 3, in the “first state”, the guide 62 has a portion that extends upward from the front end of the divider 31 and has a portion that extends upward. . This part allows the tangled stem to be loosened to some extent. The vertical width (height) can be set to an arbitrary length in design, but can be about 50 cm, for example.

  A locking portion 71 having a boss hole is provided at the rear end of the guide 62 in the “second state” (the other end not connected to the rotating shaft 61). The portion 71 is locked by a locking boss 75 protruding to the side of the platform 28. As a result, the posture of the guide 62 in the “second state” is stabilized.

  The guide 62 is provided with an engaging portion 70 that engages with the front end of the divider 31 in the “first state”. FIG. 4A shows an enlarged side view in the vicinity of the locking portion 70, and FIG. 4B shows an enlarged top view in the vicinity of the locking portion 70. In FIG. 4 (a), the guide 62 is shown partially broken to make the locking portion 70 easy to see. As shown in FIGS. 4A and 4B, the locking portion 70 can be placed on the front end of the divider 31, and the guide 62 is interposed via the locking portion 70. As a result, the posture of the guide 62 in the “first state” can be stabilized.

  A knob is attached to the shaft end of the rotating shaft 61. When the knob of the rotating shaft 61 is twisted counterclockwise, the tightening between the rotating shaft 61 and the guide 62 can be loosened. Further, if the tightening of the rotating shaft 61 and the guide 62 is loosened, the guide 62 can be slid back and forth with respect to the rotating shaft 61. When switching the guide 62 from the “second state” to the “first state”, the operator first rotates the rotating shaft 61 and rotates the guide 62 in the “second state” forward. Move. Then, by twisting the knob of the rotating shaft 61 counterclockwise, loosening the tightening of the rotating shaft 61 and the guide 62, sliding the guide 62 forward, and sliding the guide 62 backward again, the locking portion 70 Is placed on the front end of the divider 31. In this state, the knob of the rotating shaft 61 is twisted clockwise, the space between the rotating shaft 61 and the guide 62 is tightened, and the guide 62 is fixed to the rotating shaft 61. In this way, the guide 62 is set to the “first state”.

  In order to prevent the front end of the divider 31 from being damaged, a buffer material may be provided inside the locking portion 70.

  Returning to FIG. 3, the side divider 63 guides the cereal straw (for example, rice) to the side of the body frame 4. The side divider 63 is provided in order to prevent the uncut rice cake from being entangled in the side portion of the cutting unit 2 by being tilted to the side of the divider 31 (front side in FIG. 3).

  Next, the operation of the combine A according to this embodiment will be described.

  First, the case of performing buckwheat cutting and threshing operations will be described.

  First, the operator sets the side divider 63 in a state of contacting the side wall of the divider 31. Thereby, the grain of the grain part of buckwheat cereal is prevented from falling on the side divider 63 and falling.

  Further, as shown in FIG. 5, the worker manually rotates the rotating shaft 61 and sets the guide 62 to the “first state” before the work. In this state, the cutting of buckwheat is started. The guide 62 in the “first state” loosens the buckwheat stalks that have been entangled in advance, guides the buckwheat cereals within the cutting width to the inside of the divider 31, and moves the buckwheat cereals outside the cutting width. Since it guides to the divider 31 and the outside, the buckwheat cereals are properly weeded. The guide 62 is cantilevered by the divider 31 via the rotating shaft 61. If the guide 62 is supported at both ends, the buckwheat grain hits the supported part and the grain may fall, so the guide 62 is cantilevered.

  Next, the case where rice harvesting and threshing are performed will be described.

  In this case, the worker falls the side divider 63 to the side of the divider 31 as shown in FIG. 6 before the work. Thus, if the side divider 63 is tilted to the side of the divider 31, the side divider 63 guides the rice outside the cutting width to the side, and the grained portion hits the side of the cutting unit 2. Thus, a large amount of grain is prevented from falling.

  Further, before the work, the worker turns the rotary shaft 61 to set the guide 62 to the “second state”. If the guide 62 is set to the “second state” and extends rearward with respect to the tip of the divider 31, the guide 62 hits the grained portion of the rice before cutting and the grain falls. Is prevented. Further, the guide 62 set in the “second state” also functions as a side divider similar to the side divider 63.

  In addition, of course, the height of the cutting part 2 can be adjusted as appropriate according to the length of the culm to be cut.

  As described above in detail, according to the present embodiment, the rod-shaped guide 62 is supported so as to extend forward from the front end of the divider 31 according to the type of grain to be cut and threshed. There is provided a weed divider structure of a combine A that can be switched between a “first state” and a “second state” supported so as to extend rearward from the front end of the divider 31. The “first state” is suitable for cereals that are difficult to weed only with a herbaceous body, such as cereals with intertwined stems, and the “second state” is relatively upright like rice. Like a cereal, a divider 31 alone is suitable for a cereal that is sufficiently easy to weed. By adopting such a structure, it becomes possible to change the structure to a suitable one according to the type of grain without removing the guide 62. You will be able to do the grass.

  Furthermore, according to this embodiment, since the weeding device structure can be switched between the “first state” and the “second state” with a simple configuration of the rotation shaft 61, the handling is easy. It can be. Moreover, since such a structure is easy to manufacture, it is possible to shorten the time required for manufacturing and to reduce manufacturing costs.

  According to the present embodiment, when the guide 62 is in the “first state”, the guide 62 in the “first state” is provided with the locking portion 70 that is locked to the front end of the divider 31. Since 62 is fixedly supported via the locking portion 70, the posture of the guide 62 in the “first state” can be stabilized.

  In the above embodiment, the guide 62 is rotatable with respect to the divider 31 and can be switched between the “first state” and the “second state”. However, the present invention is not limited to this. Instead, the guide 62 may be slid in the front-rear direction so as to be able to extend forward and retract backward from the tip of the divider 31.

  In the above-described embodiment, the setting state of the guide 62 is two, ie, “first state” and “second state”. However, the guide 62 may be switched to different states. For example, the guide 62 may be tilted to the side of the cutting unit 2 in the same manner as the side divider 63.

  The shape of the divider 31 is not limited to that of the above embodiment, and may be any shape that can properly weed the cereal. Moreover, in the said embodiment, although the latching | locking part 70 becomes a shape which covers the front end of the divider 31, the latching | locking part 70 should just be latched by the divider 31. The front end of the divider 31 does not necessarily have to be completely covered. However, since the front end of the divider 31 is the most important part for the weeds and it is not appropriate to provide a complicated mechanism, in the above embodiment, the locking portion 70 is put on the front end of the divider 31. The structure was adopted.

  In addition, buckwheat, rapeseed, sunflower, and the like are preferable for setting the guide 62 in the “first state”, and as the preferable grain for setting the guide 62 in the “second state”. In addition to rice, there are soybeans and wheat.

  In the above embodiment, one side divider 63 is provided on each side, but two or more side dividers 63 may be provided on one side.

  In the above embodiment, the guide 62 and the like are attached to both the left and right dividers 31, but may be attached to only one of them. In this case, it is desirable for the combine A to cut the cereal while proceeding in a spiral manner in the field, for example, so that the uncut side is always the side on which the guide 62 is attached.

It is a side view of the whole combine which concerns on one Embodiment of this invention. It is a top view of the whole combine of FIG. It is a side view of the cutting part of the combine of FIG. 4A is an enlarged side view in the vicinity of the locking portion 70, and FIG. 4B is an enlarged top view in the vicinity of the locking portion 70. FIG. It is a side view of the harvesting part of the combine at the time of cutting and threshing of buckwheat. It is a side view of the harvesting part of the combine at the time of harvesting and threshing rice.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling machine body 2 Cutting part 3 Traveling part 4 Airframe frame 5 Threshing part 6 Sorting part 7 Driving part 8 Storage part 9 Motor part 10 Grain carrying out auger 11 Handling cylinder 12 Oscillating sorter 13 1st Kara 14 2nd Kara 15 1 Number conveyor 16 Second conveyor 17 Cabin 18 Operation column 19 Handle 20 Driver's seat 21 Engine 22 Handling room 25 Feeder house 26 Carry-out part 27 Carry-in part 28 Platform 29 Cross feed auger 30 Cutting blade 31 Divider 32 Lifting mechanism 33 Take-in reel 35 Conveyor 61 Rotating shaft 62 Guide 63 Side divider 70, 71 Locking part 75 Locking boss A Combine

Claims (3)

In the combine weed divider structure that weeds the grain in front of the combine harvester,
A weed body disposed so as to protrude forward of the side end portion of the cutting device;
A first state supported by the weed body so as to extend forward from the front end of the weed body, and a second state supported by the weed body so as to extend rearward from the front end of the weed body. And a rod-shaped guide that extends upward from the front end of the weed body in the first state, and a combined weed divider structure. The guide is
One end of the rotating shaft is connected to the herbaceous body,
2. The combine weed divider structure according to claim 1, wherein switching between the first state and the second state is possible by rotation of the rotating shaft. The guide includes
The combine weed divider structure according to claim 2, wherein a locking portion that is locked with a front end of the weed body is provided in the first state.

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