WO2013089224A1

WO2013089224A1 - Cereal stalk reaping apparatus

Info

Publication number: WO2013089224A1
Application number: PCT/JP2012/082479
Authority: WO
Inventors: 大原研二
Original assignee: ヤンマー株式会社
Priority date: 2011-12-14
Filing date: 2012-12-14
Publication date: 2013-06-20
Also published as: CN103974611A; IN2014DN05771A; CN103974611B

Abstract

Replacement of a front end unit is facilitated which performs mowing of a crop in a cereal stalk reaping apparatus. The present invention comprises a spindle reaper (61) which is laterally bridged with respect to a body (3), and rotates in a vicinity of a horizontal axis; a rotation transformation mechanism (100) which is linked and concatenated to a terminal end of the spindle reaper (61); and a transmission shaft group which is installed in a longitudinal direction of the body (3) and linked and concatenated to an output side of the rotation transformation mechanism (100) to move a cutting blade of a reaping apparatus (270) from side to side. The transmission shaft group is configured to include a first transmission rod (110) whose lead end is connected to the rotation transformation mechanism (100); and a second transmission rod (220) which rotates in conjunction with the first transmission rod (110) via a predetermined power transmission mechanism that has a shaft center different from a shaft center of the first transmission rod (110). One end of the second transmission rod (220) is linked and concatenated to one end of the cutting blade via a linear conversion mechanism to move the cutting blade of the reaping apparatus (270) from side to side.

Description

Grain harvester

The present invention relates to a cereal reaping device and a cereal reaper harvesting unit.

2. Description of the Related Art Conventionally, in a grain harvesting device such as a combiner, a clipper type harvesting device (hereinafter, referred to as a main harvesting device) in which a plurality of cutting blades are arranged in parallel in the left-right direction over the entire width of the front end of the front end lower portion of the device. It is arranged. Here, when the cereal reaper moves forward and the planted culm comes into contact with the main reaper, the main reaper cuts the stock portion of the planted culm and harvests the cereal.

The ordinary combine shown in Patent Document 1 includes a pre-cutting processing device that cuts the root side of a crop planted in a field and collects the culm of the cut crop. Here, there are crops that can be planted in the field, such as crops that can be planted in rows like rice and wheat, and crops that can be planted without rows like rapeseed and sunflower. There are optimal shapes and structures for each crop.

Therefore, in the ordinary combine shown in Patent Document 1, the tip side of the pre-cutting device is unitized and can be separated and replaced. Specifically, the front end side of the pre-cutting processing apparatus is replaced with a unit that can be mounted according to the crop to be cut. Examples of the unit include a unit for rice and a unit for millet.

The unit for rice wheat is provided with a front end portion of the side wall of the pre-harvest processing device and a divider for rice wheat. The unit for milled grains is vertically arranged at the front end portion of the side wall of the pre-harvest processing device, the divider for millet, the main mowing device for cutting the crop root, and the lateral end of the pre-harvest processing device. An auxiliary cutting device that is arranged in a standing posture along the side and cuts the crop.

Also, such a grain harvesting device includes a weeding tool protruding forward from the left and right ends of the main harvesting device. When the cereal cutting device travels forward, this weeding tool is a crop that the main cutting device abuts (hereinafter referred to as a crop in the cutting range) and a crop that the main cutting device does not contact (hereinafter the cutting range). It is called a crop that is not in the area.) Thereby, the culm harvesting device can selectively cut and capture the crop culm in the harvesting range.

However, if the crops that are in the cutting range and the crops that are not in the cutting range are entangled, the weeding tool may not be able to separate them sufficiently. If the entangled crops are forcibly taken in, there is a problem that the culms of the entangled crops are torn off or the harvested objects (grains, etc.) attached to the culms are dropped.

As a technique for coping with such a problem, Patent Document 2 discloses a vertical cutting device (hereinafter referred to as a secondary cutting device) that is arranged in a standing posture along the vertical direction at the left end of the main cutting device to cut a crop. A conventional combine with a device is described. In such a general combine, the auxiliary harvesting device can selectively and appropriately harvest crops in the harvesting range by cutting the crops in the entangled harvesting range and the crops that are not in the harvesting range. It becomes like this.

JP 2010-104332 A JP 2010-22320 A

In the ordinary combine disclosed in Patent Document 1 described above, the cutting blades of the main mowing device and the auxiliary mowing device are driven by the rotational force of the counter shaft that is horizontally mounted on the back surface of the platform. The rotational force of the counter shaft is transmitted to the cutting blade through the transmission shaft. However, the position of the cutting blade differs between the unit for minor grains and the unit for rice wheat.

Therefore, in the above-described ordinary combine, the unit for minor grains includes a dedicated transmission shaft. For this reason, when exchanging the unit for millet and the unit for rice, remove the shaft for the rice unit and attach the shaft for the unit for minor grains, or remove the shaft for the unit for minor grains. It is necessary to install a transmission shaft for the rice wheat unit.

However, the connection between the transmission shaft and the counter shaft is special, and a special tool is required for the replacement work. Moreover, the replacement work of the transmission shaft is complicated, and it has been difficult for a general user to replace the tip portion of the pre-cutting processing device easily according to the crop to be cut.

In addition, the above-described auxiliary harvesting device has a height corresponding to the height at which entanglement occurs in the cereal culm in order to cut the entangled portion of the crop to be harvested. However, the vicinity of the tip of the cereal reaping device on which the main reaping device is disposed has a tapered shape in which the vertical length becomes shorter as the end becomes closer. Therefore, the auxiliary reaping device disposed at either the left or right side end of the main reaping device disposed near the tip of the cereal reaping device has its lower end fixed to the main body of the cereal reaping device. .

The present invention has been made in view of the above problems, and an object of the present invention is to facilitate the exchanging operation of a tip portion including a cutting blade for cutting a crop in a culm harvesting device for harvesting a crop culm.
Another object of the present invention is to solve at least one of the various problems that occur due to the fixed state of the auxiliary harvester with respect to the grain harvester.

The technology according to claim 1 of the present invention is a grain harvesting device provided with a harvesting device having a clipper-type cutting blade at the front of the machine body, which is horizontally supported with respect to the machine body, and has a horizontal shaft. A drive shaft that rotates about a center, a rotation conversion mechanism that is interlocked and connected to a terminal end of the drive shaft; A transmission shaft group that reciprocally drives the cutting blades to the left and right. The transmission shaft group has an input oscillating shaft connected at a starting end to the rotation conversion mechanism, and the input oscillating shaft has a different axis. And an output rocking shaft that rotates in conjunction with the input rocking shaft via a predetermined power transmission mechanism, and one end of the output rocking shaft is cut through the linear conversion mechanism. Reciprocating the cutting blade of the reaping device left and right by interlockingly connecting with one end of the blade Characterized in that it.

According to the first aspect of the present invention, the member that transmits the rotational force of the drive shaft to the cutting blade of the reaping device is composed of the input oscillating shaft and the output oscillating shaft. The two swing shafts have different axis centers and are rotated in conjunction with each other via a predetermined power transmission mechanism. As described above, the configuration of the two swing shafts eliminates the need to remove the input swing shaft that is linked to the drive shaft, and allows the input swing shaft and the output swing shaft to be interlocked. By removing the power transmission mechanism from either the input swing shaft or the output coaxial shaft, the reaping device can be attached to or removed from the cereal reaping device. Therefore, when exchanging the harvesting device at the tip of the cereal trimming device, it is not necessary to remove the rotation conversion mechanism that requires a special tool for attachment or removal, and the exchanging work is facilitated.

Further, according to the first aspect of the present invention, since the two oscillating shafts are configured to rotate together with the predetermined power transmission mechanism, the input oscillating shaft is fixed and the input oscillating shaft is fixed. By appropriately changing the relative position of the moving shaft and the output swing shaft, the position of the cutting blade of the reaping device can be freely selected. Thereby, the freedom degree of selection of the position of a cutting blade improves.

According to a second aspect of the present invention, there is provided the grain harvester according to the first aspect, wherein the output swing shaft and the harvester are units that can be handled integrally, and the unit is attached to the body body. It can be removed from the main body while leaving the input swing shaft.

According to the second aspect of the present invention, since the output swing shaft and the reaping device can be handled as a unit, the output coaxial of each unit is connected to the reaping device of the reaping device provided in each unit. The blade position can be optimized. Therefore, only by replacing the unit, the cutting blade is arranged at the optimum position, and the input swing shaft arranged at the optimum position for driving the cutting blade can also be attached to the cereal harvester. Of course, the unit including the predetermined power transmission mechanism may be used. Thereby, the exchange operation of the cutting device in the front-end | tip part of a grain cocoon cutting device becomes easy.

The technology according to claim 3 is the grain harvester according to claim 1 or 2, wherein the rotation conversion mechanism is configured to rotate the drive shaft around a lateral axis about the input swing shaft. The predetermined power transmission mechanism converts the reciprocating rotation about the longitudinal axis of the input rocking shaft to the output rocking shaft, thereby converting the output rocking. It is a link mechanism that reciprocally rotates the shaft around a longitudinal axis.

According to the third aspect of the present invention, when the reaping device is replaced, the rotation around the lateral axis of the drive shaft is reciprocally rotated around the longitudinal axis of the input swing shaft, which is particularly complicated. There is no need to attach or remove the rotation conversion mechanism to be converted. On the other hand, when exchanging the reaping device, the output of the reciprocating rotation around the longitudinal axis of the input rocking shaft that is easy to replace A link mechanism that reciprocally pivots the swing shaft around the front-rear axis may be attached or removed. Thereby, the exchange operation of the cutting device in the front-end | tip part of a grain cocoon cutting device becomes easy.

In addition, the above-described cereal reaping device can take the following aspects.
That is, in one aspect of the grain reaper harvesting device, the rotation conversion mechanism converts rotation around the lateral axis of the drive shaft into reciprocating rotation around the longitudinal axis of the first transmission shaft. The predetermined power transmission mechanism transmits the reciprocating rotation around the longitudinal axis of the first transmission shaft to the second transmission shaft, thereby causing the second transmission shaft to move forward and backward. A gear mechanism for reciprocating rotation around the center can be provided.

Moreover, one aspect of the cereal reaper apparatus is a cereal reaper apparatus that can attach a cereal reaper unit including a clipper-type cutting blade to a front portion of the airframe body, with respect to the airframe body. A drive shaft that is horizontally supported and rotates about a lateral axis, a rotation conversion mechanism that is interlocked and connected to the terminal end of the drive shaft, and a front-rear direction of the main body, and is arranged at the output side of the rotation conversion mechanism. An input oscillating shaft that is interlocked and connected, and the input oscillating shaft is an oscillating shaft provided in the reaper device unit via a predetermined power transmission mechanism, and the input oscillating shaft is an axis center The cutting blade of the reaping device connected to one end of the output oscillating shaft and one end of the cutting blade via a linear conversion mechanism to the left and right by rotating in conjunction with the output oscillating shaft having different It can also be set as the structure which reciprocates.

In one aspect of the present invention, a clipper-type main cutting device in which a plurality of cutting blades are arranged in parallel in the left-right direction, and a platform having a predetermined width that is disposed in front of the fuselage and has the main cutting device fixed to the front end. A rear end portion on each of the left and right side portions of the platform at a position rearward of the fixed position of the main reaping device, and a pair of left and right lifting arms rotatably supported, and a position above the main reaping device. The left and right ends of the rotation shaft oriented in the left-right direction are respectively disposed at intermediate positions of the pair of left and right lifting arms, and the reel-type scraping device and the cutting blade are supported outward from the lifting arms. A clipper in which a plurality of cutting blades are arranged in parallel in the vertical direction, with the lower part fixed to the lateral side surface of the platform at any position from the pivot axis of the lifting arm to the front end of the lifting arm so as to be positioned In the secondary cutting device and, cereal 稈刈 winding device provided with the auxiliary cutting device, on the side facing the raking reel, a cushioning member having flexibility, it is disposed.

In the grain harvester according to the above aspect, a platform having a predetermined width is disposed in front of the fuselage, and a clipper type main harvester having a plurality of cutting blades arranged in parallel in the left-right direction is fixed to the front end of the platform. Has been. The crop to be harvested that has come into contact with the main harvesting device is cut at the base of the planted cereal. Thus, the culm of the crop to be harvested that has been harvested by the main harvesting device is put into the platform and, if necessary, sent to a sorting unit, a threshing unit, etc., arranged at the rear of the aircraft, and appropriately sorted and threshed. Etc. are performed.

Further, a reel type scraping device is disposed above the main cutting device. In this reel type scraping device, left and right end portions of a rotating shaft oriented in the left-right direction are respectively supported at intermediate positions of a pair of left and right lifting arms. The reel type scraping device scrapes the upper part of the planted cereal into the inside of the platform by rotating around the rotation axis. Thereby, the grain cocoon harvesting efficiency and the grain cocoon uptake efficiency by the main harvesting device are improved.

Further, the pair of right and left lifting arms are supported at their rear end portions on the left and right sides of the platform at a position rearward of the fixed position of the main reaping device, and are rotatable. Therefore, these elevating arms can be rotated to adjust the position of the reel type scraping device to a position corresponding to the height of the planted culm.

Further, a lower part of a clipper-type auxiliary mowing device in which a plurality of cutting blades are arranged in parallel in the vertical direction is fixed to the lateral side surface of the platform. The fixing position of the auxiliary reaping device is in front of the position where the pivot shaft of the lifting arm is fixed and is behind the front end of the lifting arm. Further, the auxiliary cutting device is arranged such that the cutting blade is positioned outward from the lifting arm.

A flexible buffer member is disposed on at least one of a side surface of the sub-trimming device that faces the scraping device and a side surface of the lifting arm that faces the sub-trimming device. . As a result, the lower part is fixed to the side surface of the platform, and the upper part of the auxiliary reaping device vibrates in the left-right direction. The possibility of occurrence of cracks and scratches due to collision, dropping of the cutting blade, etc. can be reduced as much as possible.

In one of the optional aspects of the present invention, the buffer member is disposed from the upper end of the auxiliary reaping device to the middle in the vertical direction. That is, by arranging the buffer member from the upper end of the auxiliary harvesting device to the middle in the vertical direction, where the secondary harvesting device and the lifting arm are likely to interfere with each other, the above-mentioned lifting and lowering can be effectively performed. A direct collision between the arm and the auxiliary cutting device can be prevented.

In one of the optional aspects of the present invention, the buffer member is arranged in correspondence with the movable range of the lifting arm when the grain harvester is in use. That is, the above-described lifting arm is effectively provided by disposing the buffer member in the movable range of the lifting arm when the grain reaper harvesting device interferes with the auxiliary harvesting device and the lifting arm. And a direct collision between the auxiliary reaping device and the auxiliary reaping device can be prevented.

In addition, the grain harvester according to the present technology is not limited to the above-described aspect, and includes various aspects such as being implemented in a state of being incorporated in another device or being implemented with another method. Needless to say.

According to the present technology, it is possible to provide a cereal reaping device capable of facilitating replacement work of a tip portion including a cutting blade for cutting a crop.
Moreover, according to the grain reaper harvesting apparatus demonstrated above, it becomes possible to solve at least one of the various problems which generate | occur | produce due to the fixed condition of the sub harvesting apparatus with respect to the grain harvesting apparatus.

It is a left view which shows the whole structure of a combine. It is a right view which shows the whole structure of a combine. It is a top view which shows the whole structure of a combine. It is a power transmission diagram of the combine which attached the rice wheat unit. It is a left view of a cutting part. It is a front view of a cutting part. It is a top view of a cutting part. It is a right view of a cutting part. It is a rear view of a cutting part. It is a figure which shows a specific example of a rotation conversion mechanism. It is a figure explaining the power transmission in a reaping device. It is the perspective view which removed and showed the rice wheat unit from the cutting part. It is the perspective view which removed and showed the millet unit from the cutting part, It is the right view which attached and showed the cereal unit to the cutting part. It is a power transmission diagram of the combine which attached the millet unit. It is a figure explaining the attachment position and inclination of a 2nd transmission rod. It is the left view which attached and showed the cereals unit to the cutting part. It is a figure explaining the power transmission with respect to the vertical cutting device in a millet unit. It is a perspective view explaining the power transmission of the combine which attached the millet unit which concerns on a modification. It is a power transmission diagram of the combine which attached the millet unit which concerns on a modification. It is a perspective view of a cutting part. It is a left view of a cutting part. It is a right view of a cutting part. It is a front view of a cutting part. The periphery of the vertical cutting blade device is shown obliquely viewed from the upper left rear. It is a perspective view which shows an example of the structure of a buffer member. It is a figure which shows the power transmission mechanism in a combine. It is a figure which shows a specific example of a rotation conversion mechanism. It is a perspective view which shows an example of the power transmission to a vertical cutting device.

Hereinafter, embodiments of the present technology will be described in the following order.
(1) Configuration of grain harvester:
(2) Configuration of grain harvester unit:
(3) Second embodiment:
(4) Modification:
(5) Configuration of vertical cutting device:
(6) Structure of the buffer member:
(7) Power transmission structure:
(8) Summary:

(1) Configuration of grain harvester:
<Basic configuration when the rice wheat unit is installed>
First, the basic configuration of the combine 1 will be described by taking as an example a state in which a later-described rice wheat unit U1 is attached. In addition, the combine 1 comprises a grain reaper harvesting apparatus in this embodiment. 1 is a left side view showing the overall configuration of the combine 1, FIG. 2 is a right side view showing the overall configuration of the combine 1, and FIG. 3 is a plan view showing the overall configuration of the combine 1. FIG. 4 is a power transmission diagram of the combine 1 to which the rice wheat unit U1 is attached.

As shown in FIGS. 1 to 3, the combine 1 includes a traveling

unit

2, 2, an airframe 3, a mowing unit 4, a threshing unit 5, a sorting unit 6, a waste disposal unit 7, an operating unit 8, A grain storage unit 9 and a prime mover unit 10 are provided. The prime mover unit 10 includes an engine, and the driving force generated by the engine is transmitted to each unit through a power transmission mechanism. The power transmission mechanism will be described later. In the present embodiment, the body 3 corresponds to the body.

The combine 1 includes a pair of left and right crawler

type traveling units

2, 2, the body 3 is disposed immediately above the traveling

units

2, 2, and a cutting unit 4 is attached in front of the body 3. In the left part of the machine body 3, the threshing unit 5, the sorting unit 6, and the rejection processing unit 7 are sequentially arranged in the front-rear direction. In the right part of the machine body 3, an operation unit 8, a motor unit 10, and a grain storage unit 9 are sequentially arranged in the front-rear direction.

The cereals harvested by the mowing unit 4 are passed through the threshing unit 5 and the sorting unit 6 in order, and threshing and sorting are performed. Separated. The grain or the like which is a harvested part is sent to the grain storage unit 9 and once stored, and then packed in the bagging unloading body 12 connected to the grain storage unit 9. The non-harvest part, such as straw, is sent to the waste disposal unit 7 and formed into a predetermined shape, or is directly discharged outside the combine 1.

FIG. 5 is a left side view of the cutting unit 4, FIG. 6 is a front view of the cutting unit 4, FIG. 7 is a plan view of the cutting unit 4, and FIG. 8 is a right side view of the cutting unit 4. FIG. 9 is a rear view of the cutting unit 4. In FIG. 8, the right side plate attached to the right side of the cutting unit 4 is removed and the inside is exposed.

As shown in FIGS. 5 to 9, the cutting unit 4 includes a feeder house 20, a platform 21, a cutting device 22, a pair of left and

right dividers

23 and 23, and a take-up reel 24.

The feeder house 20 is arranged on the lower left side of the operation unit 8 as shown in FIGS. 1 to 3, and its rear end is pivoted to the front of the airframe 3. The feeder house 20 is rotatable about this pivot axis.

As shown in FIG. 1, an elevating hydraulic cylinder 26 is installed between the lower part of the feeder house 20 and the front part of the machine body 3. When the lifting hydraulic cylinder 26 expands and contracts, the lifting position of the feeder house 20 is freely adjusted. The expansion / contraction of the elevating hydraulic cylinder 26 can be controlled by performing a predetermined operation on the operation panel of the operation unit 8.

The feeder house 20 has a rectangular cylindrical casing extending in the front-rear direction, and an opening for carrying the harvested cereal is formed at the front end thereof. The feeder house 20 is provided with a transport conveyor for transporting cereals loaded from the opening from the front to the rear.

For example, as shown in FIGS. 4 and 7, the transport conveyor can be formed by winding a transport belt between the harvesting main shaft 61 and a driven drum disposed inside the feeder house 20. . The conveyor belt circulates around the harvesting spindle 61 and the driven drum according to the rotation of the harvesting spindle 61, and is carried from the front end side (the platform 21 side) of the feeder house 20 and placed on the conveyor belt. The rice cake etc. are conveyed to the rear end side (threshing part) of the feeder house 20.

The platform 21 is formed in a casing shape with an opening at the front, and the left-right width is substantially the same as the left-right width of the airframe 3. In addition, the platform 21 has a front end opening (a carry-in port) of the feeder house 20 connected to the left side on the rear end side thereof. From this carry-in entrance, the cereals harvested by the mowing unit 4 are carried into the feeder house 20.

In the inside of the platform 21, a take-up auger 25 is horizontally mounted through an auger support shaft 32 having a pivot axis oriented in the left-right direction. The scraping auger 25 scrapes the cereals harvested by the reaping device 22 described later into the platform 21, and feeds it horizontally into the front end opening (feeding port) of the feeder house 20.

The cutting device 22 is formed in a clipper shape in which a plurality of cutting blades are arranged in parallel in the left-right direction, and is arranged at the front end lower portion of the platform 21 over the entire width of the front end. When the combine 1 travels forward and the planted culm comes into contact with the reaping device 22, the reaping device 22 cuts the stock portion and reaps the cereal.

The pair of left and

right dividers

23, 23 project forward from the left and right side walls of the platform 21, respectively, and are planted on the cutting side inside the platform 21 and on the non-cutting side outside the platform 21 when the aircraft moves forward. Weed cereals.

The scraping reel 24 is rotatably disposed above the pair of left and

right dividers

23 and 23. The scraping reels 24 arranged in this manner scrape the planted cereals that have been weeded on the cutting side in the platform 21 by the

dividers

23 and 23 toward the platform 21 while rotating.

The scraping reel 24 is supported above the pair of left and

right dividers

23 and 23 by, for example, an arm support shaft 40, a pair of left and

right support arms

41 and 41, and a reel lifting cylinder 42. The arm support shaft 40 is horizontally mounted on the upper rear end of the platform 21 with the axis line directed in the left-right direction.

The base end portions (rear end portions) of the pair of left and

right support arms

41 and 41 are pivotally supported at the left and right end portions of the arm support shaft 40. The

support arms

41, 41 extend in the front-rear direction, and a reel raising / lowering cylinder 42 is interposed between the middle part of each support arm 41 and the side wall of the platform 21. When the reel raising / lowering cylinder 42 is expanded and contracted, both the

support arms

41 and 41 rotate about the arm support shaft 40 as a support shaft.

Between the front end portions (front end portions) of the both

support arms

41, 41, a reel support shaft 43 extending in the left-right direction is rotatably mounted around its axis. The position of the reel support shaft 43 can be adjusted in the front-rear direction. Center portions of a pair of left and right

rotating support bodies

44, 44 facing each other are attached to the left and right ends of the reel support shaft 43.

Both rotary supports 44, 44 are formed of a metal plate in a regular pentagon shape, and a tine bar pivot support 45 is provided at each corner (top). A pipe (circular tube) tine bar 46 extending in the left-right direction is horizontally placed between the tine bar pivotal support bodies 45 at the corners facing each other in the rotation supports 44 and 44. Each tine bar 46 is rotatable about its axis, and a plurality of tines 47 are attached to each tine bar 46 at a certain interval in the left-right direction.

Thus, when the reel support shaft 43 is rotated counterclockwise in the left side view (for example, FIG. 5), the pair of left and right rotation supports 44, 44 attached to the reel support shaft 43 are also rotated counterclockwise. Then, the tine 47 attached between the rotary supports 44 and 44 via the tine bar 46 moves around the outer periphery of the rotary support 44.

At this time, the tine posture holding mechanism 51 holds at least the tine 47 that acts on the planted cereal buds in the rotating tine 47, and the tine 47 held in the suspended posture is the planted cereal. It works to scratch the heel.

The cutting unit 4 configured as described above divides the planted cereals that have been weeded by the pair of left and

right dividers

23, 23, and scrapes the planted cereals that have been weeded by the scraping reel 24. At the same time, the stocked portion of the planted cereal that has been raked is cut by the reaping device 22 and raked into the platform 21. The cereals that have been scraped into the platform 21 are laterally fed into the front end opening (inlet port) of the feeder house 20 by the rake auger 25, and the whole cereals are further transported by the conveyor 27 in the feeder house 20. It carries in (throws in) the threshing part 5 arrange | positioned at the back body 3. FIG.

Here, the power transmission mechanism to the reaping device 22 will be described. A power transmission mechanism for transmitting power from the harvesting spindle 61 to the harvesting device 22 is disposed along the right side wall of the platform 21 as shown in FIG. In the present embodiment, the harvesting spindle 61 corresponds to the drive shaft of the harvesting device 22.

As shown in FIGS. 8 and 4, the power transmission mechanism to the reaping device 22 includes a rotation conversion mechanism 100, a first transmission rod 110, a swing arm 120, and a link mechanism 130 in this embodiment. It is configured. The tip of the first transmission rod 110 is supported by the first support member 140 and the first pivot member 150.

The rotation conversion mechanism 100 is a mechanism that transmits power according to the rotation of the cutting main shaft 61 to a shaft member having a different axis from that of the cutting main shaft 61. By transmitting the power through the rotation converting mechanism 100, the power of the cutting main shaft 61 arranged in the left-right direction of the machine body 3 is arranged in the front-rear direction of the machine body 3. 1 can be transmitted to the transmission rod 110.

<Specific example of rotation conversion mechanism>
FIG. 10 is a diagram illustrating a specific example of the rotation conversion mechanism. This figure is shown partially cut in a vertical and horizontal cross section along the cutting main shaft 61 and viewed from the back side. In the figure, a rotation conversion mechanism 100 is mounted on an inclined head 101 connected to a cutting main shaft 61 so that an inclined boss 103 is rotatably fitted around the inclined axis 102 so as to be freely rotatable. A first transmission rod 110 is connected to a pair of fulcrum pins 104 provided at angular positions via a yoke 109.

Here, when the cutting main shaft 61 rotates around the lateral axis, the tilt axis 102 of the tilt boss 103 is swung forward and backward. At this time, the first transmission rod 110 linked to the inclined boss 103 via the fulcrum pin 104 and the yoke 109 reciprocates at a predetermined angle. Thereby, the rotation of the cutting main shaft 61 around the lateral axis is converted into the reciprocating rotation around the longitudinal axis of the first transmission rod 110.

<First transmission rod>
As shown in FIG. 8, the first transmission rod 110 is arranged with its shaft oriented in the front-rear direction of the body 3. As described above, the base end of the first transmission rod 110 is connected to the cutting main shaft 61 via the rotation conversion mechanism 100.

<Fixing the tip of the first transmission rod>
The distal end of the first transmission rod 110 is inserted freely through a through hole formed in the first support member 140 and is pivotally supported by a first pivot member 150 fixed to the front side surface of the first support member 140. ing. The first transmission rod 110 pivotally supported by the first pivot member 150 has a tip projecting from the first pivot member 150 forward by a predetermined length. A member that transmits power to the reaping device 22 of the cereal reaping unit, which will be described later, is attached to the protruding portion.

<Inclination of the first transmission rod>
The first transmission rod 110 is disposed to be inclined forward by a predetermined angle determined in accordance with the position of the cutting main shaft 61 and the position of the cutting blade of the cutting device 22. Specifically, the first transmission rod 110 is tilted forward at an angle corresponding to the distance and height difference from the cutting main shaft 61 to the cutting blade of the cutting device 22. Thus, the power of the cutting main shaft 61 can be transmitted to the vicinity of the cutting device 22 by transmitting the power using the first transmission rod 110 tilted forward.

<Power transmission to the cutting blade>
FIG. 11 is a diagram for explaining power transmission in the reaping device 22. The figure shows the right end of the reaping device 22 as viewed from the front. The power transmitted to the vicinity of the reaping device 22 by the first transmission rod 110 is transmitted to the reaping device 22 using the swing arm 120 and the link mechanism 130.

The oscillating arm 120 has its base end fixed to the front end of the first transmission rod 110 protruding forward of the first support member 140. The swing arm 120 is fixed to the distal end portion of the first transmission rod 110 by a general-purpose fixing tool such as a bolt. Therefore, the swing arm 120 can be attached and detached with a general-purpose tool.

One end of a link mechanism 130 is pivotally connected to the tip of the swing arm 120. Accordingly, the swing arm 120 swings in conjunction with the swing of the first transmission rod 110, and the swing of the first transmission rod 110 is transmitted to the link mechanism 130.

The other end of the link mechanism 130 is pivotally connected to the reaping device 22. As a result, the swing arm 120 and the cutting device 22 are interlocked and connected, and the cutting blade of the cutting device 22 is reciprocated left and right with a constant stroke in accordance with the reciprocating rotation of the swing arm 120.
By the transmission mechanism described above, power corresponding to the rotation around the axis of the cutting main shaft 61 is transmitted to the cutting blade of the cutting device 22.

By the way, in the above description, the state in which the cutting device 22 and the

dividers

23 and 23 are attached to the tip of the cutting unit 4 has been described as an example. However, in the combine 1 according to the present embodiment, the cutting unit 4 The tip of is a removable unit. Therefore, an optimum unit for harvesting can be selected and attached to the tip of the harvesting unit 4 according to the culm of the crop to be harvested. Hereinafter, such a unit will be referred to as a “grain harvesting unit”.

The cereal harvesting unit is, for example, a unit suitable for harvesting rice, wheat, etc. (hereinafter referred to as “rice wheat unit U1”), or a unit suitable for harvesting rapeseed, sunflower, etc. (hereinafter referred to as “Miscellaneous grain unit U2”). And so on.) And so on. In the following, the harvesting unit 4 from which the cereal harvesting unit has been removed will be referred to as a base B. Hereinafter, each cereal reaping unit will be described.

(2) Configuration of grain harvester unit:
<Rice unit>
FIG. 12 is a perspective view showing the rice wheat unit U <b> 1 removed from the cutting unit 4. As shown in the figure, the base B of the reaping part 4 uses the power of the reaping spindle 61 among the power transmission mechanism that transmits power to the reaping device 22 to the cereal reaping unit (rice wheat unit U1 or millet unit U2). The structure includes a member for transmission.

The base B of the cutting unit 4 includes the rotation conversion mechanism 100 and the first transmission rod 110 in the power transmission mechanism. By including the first transmission rod 110 in the base B, it is not necessary to remove the first transmission rod 110 when replacing the grain harvesting unit. Thereby, it is not necessary to perform a complicated operation using a special tool when replacing the grain harvesting unit.

Further, the base B of the cutting unit 4 includes a first support member 140 and a first pivot member 150 that support the tip of the first transmission rod 110. Thus, by including the 1st support material 140 and the 1st pivot material 150 which support the front-end | tip part of the 1st transmission rod 110 in the base part B, at the time of replacement | exchange of a grain harvesting unit, the front-end | tip of the 1st transmission rod 110 is carried out. Prevents the situation without support. As a result, when the unit is replaced, the workability is improved, and a load is not applied to the connection portion of the rotation conversion mechanism 100 and the cutting spindle 61. In the present embodiment, the first transmission rod 110 corresponds to an input swing shaft.

On the other hand, the rice wheat unit U1 includes a swing arm 120, a link mechanism 130, and a reaping device 22 among power transmission mechanisms. As described above, the swing arm 120 is fixed to the first transmission rod 110 included in the base B with a general-purpose fixture such as a bolt. Can be done with a tool. Thereby, the exchange workability | operativity of a grain harpoon harvesting unit improves. In addition, you may include the cutting device 22 of the rice wheat unit U1 in the base B side, when the attachment position differs from the cutting device 270 in the millet unit U2 mentioned later.

In addition, the rice wheat unit U1 includes the

dividers

23 and 23. Thus, by including the

dividers

23 and 23 in the rice wheat unit U1, the size and shape of the

dividers

23 and 23 can be optimized for the crops to be harvested by each grain harvesting unit.

<Miscellaneous grain unit>
Next, the millet unit U2 will be described. FIG. 13 is a perspective view showing the cereal unit U2 removed from the reaping part 4, FIG. 14 is a right side view showing the cereal unit U2 attached to the reaping part 4, and FIG. 15 shows the cereal unit. It is a power transmission diagram of the attached combine. FIG. 14 shows the power transmission mechanism exposed by removing the right side plate that covers the right side surface of the cutting unit 4. Moreover, the base B of the cutting part 4 shown in FIG. 13 is the same structure as the base B of the cutting part 4 shown in FIG.

As shown in FIGS. 13-15, the cereal unit U2 includes a link mechanism 200, a second pivotal support member 210, a second transmission rod 220, a second support member 230, a third pivotal support member 240, a swing arm 250, a link. A mechanism 260, a cutting device 270,

dividers

280 and 280, and a vertical cutting device 290 are provided. As shown in the figure, these members are connected to each other by a predetermined member so that they can be handled integrally. In addition, the 2nd transmission rod 220 comprises an output rocking | fluctuation shaft in this embodiment.

As shown in FIGS. 13 and 14, the cereal unit U2 is provided with a reaping device 270 slightly ahead of the reaping device 22 of the rice wheat unit U1 described above. Therefore, the swing arm 250 cannot be directly connected to the first transmission rod 110 to transmit power. Therefore, the link mechanism 200 and the second transmission rod 220 are used to swing the power of the first transmission rod 110. This is transmitted to the arm 250.

The link mechanism 200 is pivotally supported by a general-purpose fixing tool such as a bolt with respect to the protrusion formed on the side surface of the first transmission rod 110 and the protrusion formed on the side surface of the second transmission rod 220. . Thereby, the 2nd pivot member 210 can be attached or detached with a general-purpose tool. The diameters of the first transmission rod 110 and the second transmission rod 220 can be made different, or the mechanical magnification can be changed by adjusting the joint length of the link mechanism 200 or the like.

<Shaft center of transmission rod>
FIG. 16 is a view for explaining the mounting position and inclination of the second transmission rod 220. As shown in the figure, the second pivotal member 210 is fixed to the front side surface of the first support member 140 described above by a general-purpose fixing tool such as a bolt. Thereby, the 2nd pivot member 210 can be attached or detached with a general-purpose tool.

Here, the second pivot member 210 is fixed to the first support member 140 at a position different from the first pivot member 150. Further, the second transmission rod 220 is pivotally supported by the second pivot member 210 so as to be rotatable about the front side surface of the first support member 140 so that the axis is parallel to the first transmission rod 110 described above. Has been.

For this reason, as shown in FIG. 16, the second transmission rod 220 is inclined forward at the same inclination θ as the first transmission rod 110. Thus, since the 2nd transmission rod 220 has the same inclination as the 1st transmission rod 110, the fixed position of the 2nd pivot member 210 which pivotally supports the base end of the 2nd transmission rod 220 is the reaping device 22 and the reaping It is determined according to the relative positional relationship of the device 270.

That is, as the reaping device 270 moves further away from the reaping device 22, the fixing position of the second pivotal member 210 shifts upward compared to the fixing position of the first pivotal member 150, and the reaping device 270 The relatively fixed position of the second pivotal member 210 is shifted downward as compared with the fixed position of the first pivotal member 150 as it approaches the reaping device 22 relatively.

Also, as the relative displacement between the reaping device 270 and the reaping device 22 in the left-right direction increases, the fixing position of the second pivot member 210 is further away from the fixing position of the first pivot member 150 in the left-right direction. Thus, the position of the cutting blade in the reaping device 22 and the reaping device 270 is obtained by adopting two transmission rods, the first transmission rod 110 and the second transmission rod 220, for transmitting power to the cutting blade in the milled grain unit. The degree of freedom increases.

Also, since the first transmission rod 110 and the second transmission rod 220 are connected by the link mechanism 200, the link mechanism 200 functions as a safety device when an unexpected load fluctuation occurs. As described above, since the link mechanism 200 is fixed to the first transmission rod 110 and the second transmission rod 220 with a general-purpose fixing tool such as a bolt, even if the link mechanism 200 is damaged. Easy to replace.

In the present embodiment, the second pivotal member 210 is fixed to the front side surface of the first support member 140 at a position directly above the first pivotal member 150. It may be fixed to the first support member 140 at a position shifted in the direction.

<Power transmission of millet unit>
The distal end portion of the second transmission rod 220 is inserted freely through a through hole formed in the second support member 230 and pivotally supported by a third pivot member 240 fixed to the front side surface of the second support member 230. Has been. The second transmission rod 220 pivotally supported by the third pivotal member 240 is formed such that its tip protrudes forward from the third pivotal member 240 by a predetermined length.

The base end of the swing arm 250 is fixed to the protruding portion of the second transmission rod 220. In addition, one end of the link mechanism 260 is connected to the tip of the swing arm 250. Accordingly, the swing arm 250 swings in conjunction with the swing of the second transmission rod 220, and the swing of the second transmission rod 220 is transmitted to the link mechanism 260.

The other end of the link mechanism 260 is connected to the reaping device 270. As a result, the swing arm 250 and the cutting device 270 are interlockedly connected, and the cutting blade of the cutting device 270 is reciprocated to the left and right with a constant stroke in accordance with the reciprocating rotation of the swing arm 250. That is, the reciprocating rotation of the second transmission rod 220 is transmitted to the reaping device 270.

The

dividers

280 and 280 included in the cereal unit U2 project from the left and right side walls of the platform 21 in the same manner as the

dividers

23 and 23 of the rice wheat unit U1, but the projecting length and shape are different from each other. It is different from U1. Specifically, as shown in FIGS. 13 and 14, the

dividers

280 and 280 are formed to be slightly longer forward than the

dividers

23 and 23. As a result, weeds suitable for cutting rapeseed and sunflower can be obtained.

FIG. 17 is a left side view showing the cereal unit U2 attached to the reaping unit 4, and FIG. 18 is a perspective view for explaining power transmission to the vertical reaping device 290 in the cereal unit U2. In addition, FIG. 18 shows the periphery of the vertical cutting blade device 290 as viewed obliquely from the upper left rear. As shown in FIG. 17, the vertical cutting device 290 is disposed at the left end of the cutting unit 4 in an upright posture along the left side front end of the platform 21.

The vertical cutting device 290 is formed in a clipper shape in which a plurality of cutting blades are arranged in parallel in the vertical direction, and these cutting blades are reciprocally driven in conjunction with the cutting device 270. In the present embodiment, the vertical cutting device 290 transmits the power transmitted to the cutting blade of the cutting device 270 via the first transmission rod 110 and the second transmission rod 220 via the cutting blade of the cutting device 270. .

Specifically, the vertical reaping device 290 includes a link mechanism 291, a transmission rod 292, a link mechanism 293, and a reaping device 294. The transmission rod 292 is disposed with its axial center oriented in the front-rear direction. One end of the link mechanism 291 is pivotally connected to a cutting blade of a reaping device 270 that is reciprocated to the left and right, and the other end of the link mechanism 291 is pivotally connected to a protrusion formed on the side surface of the transmission rod 292. . Thereby, the linear motion of the reaping device 270 is converted into the rotation of the transmission rod 292.

One end of the link mechanism 293 is pivotally connected to a protrusion formed on the side surface of the transmission rod 292, and the other end of the link mechanism 293 is pivotally connected to a cutting blade of a reaping device 294 that can be driven to reciprocate vertically. Yes. Thereby, the rotation of the transmission rod 292 is converted into a linear motion of the reaping device 294. That is, the linear motion of the cutting device 270 is converted into the linear motion of the cutting device 294 by the power transmission mechanism of the vertical cutting device 290.

According to the embodiment described above, the combine 1 is supported horizontally with respect to the airframe 3, the cutting main shaft 61 that rotates around the horizontal axis, and the rotation conversion mechanism 100 that is interlocked and connected to the terminal end of the cutting main shaft 61. A transmission shaft group disposed in the front-rear direction of the machine body 3 and interlockingly connected to the output side of the rotation conversion mechanism 100 to reciprocally drive the cutting blade of the reaping device 270 left and right, the transmission shaft group rotating The first transmission rod 110 connected to the conversion mechanism 100 at the start end and the first transmission rod 110 have different axes and rotate in conjunction with the first transmission rod 110 via a predetermined power transmission mechanism. The second transmission rod 220 is configured such that one end of the second transmission rod 220 is interlocked with one end of the cutting blade via a linear conversion mechanism to reciprocate the cutting blade of the reaping device 270 left and right. Therefore, in the combine 1, the replacement | exchange operation | work of the front-end | tip part which cuts a crop is facilitated.
(3) Second embodiment
In the above-described embodiment, the first transmission rod 110 and the second transmission rod 220 are connected by a link mechanism to transmit power, but the first transmission rod 110 and the second transmission rod 220 are not connected to each other. It can also be connected by other power transmission mechanisms such as a gear mechanism.

FIG. 19 is a diagram in which the first transmission rod 110 and the second transmission rod 220 are connected by a gear mechanism. The figure shows the first support plate 140 as seen from the front. In the figure, the gear 400 is fixed to the first transmission rod 110 so that the tooth surface is coaxial with the first transmission rod 110. The gear 410 is fixed to the second transmission rod 220 so that the tooth surface is coaxial with the second transmission rod 220. The gear 400 and the gear 410 mesh with each other, and the rotation of the first transmission rod 110 is transmitted to the rotation of the second transmission rod 220 through the gear 400 and the gear 410.

Thus, even when the first transmission rod 110 and the second transmission rod 220 are connected by a gear mechanism, the second pivotal support member 210 is fixed to the first support member 140 with a general-purpose fixing tool. Therefore, the attachment / detachment of the millet unit U2 can be easily performed.

(4) Modification:
In the embodiment described above, a unit for rice and wheat and a unit for rapeseed and sunflower are formed so as to be connectable to the cutting part, and these units are replaced and connected to the cutting part as an example. Of course, the types and number of replaceable units are not limited to these. For example, a unit suitable for harvesting other crops may be formed so as to be connectable to the harvesting unit, and the unit may be replaceable with a unit for rice, wheat, etc., or a unit for rapeseed, sunflower, etc. Also, three or more units may be configured to be replaceable.

(5) Configuration of vertical cutting device:
Next, the vertical cutting device 200 provided at the front left end of the cutting unit 4 shown in FIGS. 21 to 24 will be described. In the present embodiment, the vertical reaping device 200 constitutes an auxiliary reaping device. FIG. 25 is a diagram showing the periphery of the vertical reaping device 200 as viewed from the upper left rear obliquely. As shown in the figure, the vertical cutting device 200 is disposed in a standing posture along the front end of the left side surface of the platform 21 at the left end of the cutting unit 4.

As shown in the figure, the vertical reaping device 200 is arranged close to the reaping device 22 on the left side surface of the platform 21. Therefore, the vertical cutting device 200 is disposed near the tip of the platform because the cutting device 22 is disposed near the tip of the platform. Thus, by arranging the vertical reaping device 200 in the vicinity of the reaping device 22, the vertical reaping device 200 allows the crop culm to harvest the headquarters by the reaping device 22, and the non-reaching target area related thereto. Can be cut at the right time.

The power of the vertical reaping device 200 may be obtained from any part of the combine 1 other than the vertical reaping device 200. However, in the present embodiment, as described above, the reaping device 22 transmits the power via the predetermined transmission mechanism. Power is transmitted. Therefore, by arranging the vertical reaping device 200 and the reaping device 22 close to each other, the power transmission efficiency from the reaping device 22 to the vertical reaping device 200 can be improved, and an increase in the size of the power transmission mechanism can be prevented.

Here, the side surface of the cutting part 4 has a tapered shape in which the vertical length is gradually shortened toward the tip. Since the vertical cutting device 200 is fixed to the side surface near the tip of the cutting unit 4, the vertical cutting device 200 is fixed to the side surface of the cutting unit 4 at the lower end and protrudes upward from the side surface of the platform 21. The upper part of the reaping device 200 becomes unstable. Therefore, in the present embodiment, the vertical cutting device 200 is supported by the support member 206 that is also fixed to the side surface of the cutting unit 4.

The support member 206 has one end fixed to the upper end of the vertical cutting device 200 and the other end fixed to the side surface of the platform 21. The position where the other end of the support member 206 is fixed is set to a rear position relative to the position where the lower end of the vertical reaping device 200 is fixed. Thereby, the vertical reaping device 200, the support member 206, and the platform side surface have a triangular shape, and the fixing force of the vertical reaping device 200 to the platform is improved.

Therefore, the vertical reaping device 200 is prevented from blurring in the front-rear direction and is improved in stability. Thereby, since the backward cutting and backward bending of the vertical cutting device 200 by the entangled crop are prevented, the entangled crop can be cut against the biasing force. However, since the vibration in the left-right direction of the vertical reaping device 200 is not sufficiently suppressed, the upper portion of the vertical reaping device 200 may vibrate in the left-right direction of the combine 1.

At this time, as described above, the scraping reel 24 is disposed adjacent to the right side of the vertical reaping device 200. The right and left ends of the reel support shaft 43 are supported by

support arms

41 and 41 of the take-up reel 24. The height of the take-up reel 24 is adjusted by the operator of the combine 1 in accordance with the type and state of the crop, so that the support arm 41 on the left side of the harvesting unit 4 is moved up and down on the side of the vertical harvesting device 200. Move.

That is, there is a possibility that the support arm 41 is in a position facing the side surface of the vertical reaping device 200 during its lifting or stopping, and at least a part of the side surface of the vertical reaping device 200 is supported when the combine 1 is used. This overlaps with the movable range of the arm 41. In the present embodiment, the support arm 41 constitutes a lifting arm.

Furthermore, the distance between the vertical reaping device 200 and the support arm 41 is preferably as close as possible due to the positional relationship between the support arm 41, the reaping device 22, and the vertical reaping device 200. This is because the vertical reaping device 200 is outside the platform 21, the reaping device 22 extends just inside the left side of the platform 21, and the support arm 41 is substantially the same position as the outside of the platform 21 on the left side of the combine 1. This is because it is desirable that the position of the cutting blade of the vertical cutting device 200 be as close as possible to the boundary between the cutting target area and the non-cutting target area of the cutting device 22.

Therefore, the buffer member 300 is fixed to the side surface of the vertical reaping device 200 in a range including at least a part of the overlapping portion with the movable range of the support arm 41. Thereby, when using the combine 1, even if the vertical cutting device 200 and the support arm come close to each other due to the vibration of the entire combine 1 or the vibration of the vertical cutting device 200, the possibility of a direct collision can be prevented. In addition, since the shock absorbing member 300 relaxes the impact, it is possible to prevent sound, cracks, and scratches, and thus prevent the cutting blade from falling off.

When the lower end of the vertical reaping device 200 is fixed near the front end of the platform 21 as in this embodiment, the buffer member 300 is fixed at the middle in the vertical direction from the upper end of the vertical reaping device 200. It is preferable that it is disposed up to. By arranging in this way, the buffer member 300 can be arranged in a range where the support arm 41 and the vertical cutting device 200 may buffer when the support arm is moved up and down. Therefore, the arrangement range of the buffer member 300 can be minimized.

Further, the material of the buffer member 300 is not particularly limited as long as it can buffer an impact, but a resin material such as plastic having slidability, flexibility, and elasticity is exemplified.

In addition, in this embodiment, although the buffer member 300 was arrange | positioned in the side surface of the vertical cutting device 200, conversely, you may arrange | position a buffer member in the support arm 41 side. Also in this case, it is preferable that the buffer member 300 is disposed in a range where the support arm 41 and the vertical cutting device 200 may buffer when the support arm is moved up and down.

(6) Structure of the buffer member:
Next, an example of the structure of the buffer member 300 will be specifically described with reference to FIG. The buffer member 300 is a groove-shaped groove. Thus, the buffer function and intensity | strength of the buffer member 300 improve by forming in a groove | channel shape. In the following, the side where the opening of the groove is formed is referred to as the back surface, and the opposite side is referred to as the front surface.

In addition, a plurality of partition portions are formed in the groove of the buffer member 300 to form a partition structure. Thus, the strength of the buffer member 300 can be improved by forming the groove into a partition wall structure after forming the groove shape.

The buffer member 300 is attached so that the back surface faces the side surface of the vertical reaping device 205, and this back surface is formed so that the end of the groove contacts the entire mounting surface of the vertical reaping device 205 without any gap. ing. As described above, the shock absorbing performance is improved by closely attaching the buffer member 300 to the vertical cutting device 205 without any gap, damage to the vertical cutting device 205 and the support arm 41 is further reduced, and durability can be improved. it can.

Further, as shown in FIG. 26, a hole penetrating the front and back is formed in a portion where the partition structure of the buffer member 300 is formed. When the buffer member 300 is attached to the vertical cutting device 205, it is attached and fixed to the side surface of the vertical cutting device 205 with a bolt and a nut or a screw inserted through the hole. Since the part where the hole is formed is also in close contact with the side surface of the vertical cutting device 205, the fastening force between the vertical cutting device 205 and the buffer member 300 is improved, leading to an improvement in the buffering performance. In addition, the hole is formed so that the diameter of the part close | similar to the surface side is wider compared with another part so that the head of a volt | bolt and a screw may not appear on the surface of the buffer member 300.

(7) Power transmission structure:
Next, with reference to FIG. 27, the power transmission from the engine 11 to each part of the combine 1, especially the power transmission with respect to the vertical cutting device 205 in the cutting part 4 is demonstrated.

The output shaft 145 of the engine 11 is interlocked with the input shaft 112 of the traveling system drive mechanism 113 via the first interlock belt mechanism 111. The traveling system output shaft 114 of the traveling system drive mechanism 113 is connected to the cutting unit driving shaft 115 via a cutting clutch 128. The reaper drive shaft 115 is connected to the drive shaft 28 of the conveyor belt 29 via the reaper transmission mechanism 127.

The drive shaft 28 of the conveyor belt 29 is linked to the counter shaft 65 via the main shaft transmission mechanism 60. The main shaft transmission mechanism 60 is formed by winding a main shaft transmission chain between a drive sprocket 70 attached to the right end of the drive shaft 28 and a driven sprocket 71 attached to the left end of the counter shaft 65. . The counter shaft 65 extends straight in the left-right direction, and is a shaft that extends horizontally along the back wall (rear wall) of the platform 21 on the right side of the feeder house 20.

On the other hand, the right end portion of the counter shaft 65 protrudes to the right side of the right side wall of the platform 21, and the base ends of the reel transmission mechanism 62, the auger transmission mechanism 63, and the cutting blade transmission mechanism 64 are formed on the right end portion. The parts are linked together. Thus, the counter shaft 65 is interlocked with the take-up reel 24 via the reel transmission mechanism 62, the take-up auger 25 via the auger transmission mechanism 63, and the reaping device 22 via the cutting blade transmission mechanism 64, respectively. It is connected.

In the reel transmission mechanism 62, a reel drive sprocket 80 is attached to the right end of the counter shaft 65, while a driven sprocket 82 is rotatably attached to the right end of the arm support shaft 40 protruding on the same axis. A reel transmission chain 83 is wound between the

sprockets

80 and 82.

A drive sprocket 85 is integrally attached to the driven sprocket 82 on the same axis, while a driven sprocket 86 is attached to the right end of the reel support shaft 43, and an interlocking chain 87 is wound between the sprockets 85, 86. The interlocking mechanism 52 is formed by turning.

The auger transmission mechanism 63 has an auger drive sprocket 93 coaxially attached to the right end of the counter shaft 65 so as to be adjacent to the left side of the reel drive sprocket 80, while projecting outward from the right side wall of the platform 21. An auger driven sprocket 94 is attached to the right end portion of the support shaft 32, and an auger transmission chain 95 is wound between the

sprockets

93, 94. Here, the auger driven sprocket 94 is formed to have a diameter larger than that of the auger drive sprocket 93 so as to decelerate and rotate the take-in auger 25.

The cutting blade transmission mechanism 64 is interposed between the right end portion of the counter shaft 65 and the cutting blade 35 of the cutting device 22. That is, the rotation converting mechanism 105 is attached between the right end portion of the counter shaft 65 and the proximal end portion (rear end portion) of the transmission rod 106, and the rotation of the counter shaft 65 around the left and right axis is transmitted to the transmission rod 106. Is converted to rotation around the longitudinal axis.

FIG. 28 is a diagram illustrating a specific example of the rotation conversion mechanism 105. This figure is shown partially cut in the vertical and horizontal cross sections along the counter shaft 65 and viewed from the back side. In the figure, a rotation converting mechanism 105 is mounted on an inclined head 105a connected to a counter shaft 65 so that an inclined boss 105c is rotatably fitted around the inclined axis 105b. A transmission rod 106 is connected to a pair of fulcrum pins 105d provided at angular positions via a yoke 105e.

Here, when the counter shaft 65 rotates around the lateral axis, the tilt axis 105b of the tilt boss 105c is swung forward and backward. At this time, the transmission rod 106 linked to the inclined boss 105c via the fulcrum pin 105d and the yoke 105e reciprocates at a predetermined angle. As a result, the rotation of the counter shaft 65 around the lateral axis is converted into the reciprocating rotation of the transmission rod 106 around the longitudinal axis.

A proximal end portion of the swing arm 107 is fixed to the distal end portion of the transmission rod 106, and one end of the link mechanism 108 is pivotally connected to the distal end portion of the swing arm 107. The other end of the link mechanism 108 is pivotally connected to the reaping device 22. Thus, when the swing arm 107 swings in conjunction with the swing of the transmission rod 106, the cutting blade of the reaping device 22 is driven back and forth with a certain stroke in accordance with the reciprocating rotation of the swing arm 107. The By the transmission mechanism described above, power according to the rotation around the axis of the counter shaft 65 is transmitted to the cutting blade of the cutting device 22.

In addition, the threshing unit 5 is connected to the output shaft 145 of the engine 11 in conjunction with the threshing unit drive shaft 118 via the threshing clutch 117 and the belt transmission mechanism 119. The threshing unit drive shaft 118 is connected to a rotor drive shaft 121 that drives the rotor 146 via a threshing transmission belt mechanism 122. The rotor drive shaft 121 is linked to the second conveyor shaft 132a.

Further, the Kara 160, the first conveyor 131, the second conveyor 132b, and the swinging sorter 133 disposed in the sorting unit 6 include a Kara branch shaft 134, a first conveyor shaft 135, and a second conveyor shaft 136, respectively. The rocking action shaft 137 is arranged in parallel. A first interlocking belt mechanism 141 is interposed between the threshing portion drive shaft 118 and the swinging action shaft 137, and the second interlocking belt mechanism 142 is interposed between the swinging action shaft 137 and the second conveyor support shaft 136. The third interlocking belt mechanism 143 is interposed between the second conveyor support shaft 136 and the first conveyor support shaft 135, and the fourth interlocking belt mechanism 144 branched from the third interlocking belt mechanism 143 is provided. The Karatsu support shaft 134 is connected.

As described above, the driving force of the engine 11 is transmitted to the traveling unit 2, the mowing unit 4, the threshing unit 5 and the sorting unit 6 so that each operating unit is operated steadily.

Next, power transmission to the vertical reaping device 205 will be described with reference to FIG. The vertical cutting device 205 is formed in a clipper shape in which a plurality of cutting blades are arranged in parallel in the vertical direction, and these cutting blades are driven to reciprocate in conjunction with the cutting device 22. In the present embodiment, the power transmitted to the cutting blade of the reaping device 22 is transmitted via the cutting blade of the reaping device 22.

Specifically, the vertical cutting device 205 includes a link mechanism 201, a transmission rod 202, a link mechanism 203, and a cutting blade portion 204. The transmission rod 202 is disposed with its axis oriented in the front-rear direction. One end of the link mechanism 201 is pivotally connected to the cutting blade of the reaping device 22 that is driven to reciprocate left and right, and the other end of the link mechanism 201 is pivotally connected to a protrusion formed on the side surface of the transmission rod 202. . Thereby, the linear motion of the reaping device 22 is converted into the rotation of the transmission rod 202.

One end of the link mechanism 203 is pivotally connected to a protrusion formed on the side surface of the transmission rod 202, and the other end of the link mechanism 203 is pivotally connected to a cutting blade of a cutting blade portion 204 that can be driven to reciprocate vertically. ing. Thereby, the rotation of the transmission rod 202 is converted into a linear motion of the cutting blade portion 204. That is, the linear motion of the cutting device 22 is converted into the linear motion of the cutting blade portion 204 by the power transmission mechanism of the vertical cutting device 205.

(8) Summary:
In the embodiment described above, the cutting device 22, the platform 21, the pair of left and

right support arms

41 and 41, the take-up reel 24, and the cutting blade are supported so as to be located outward from the

support arms

41 and 41. A clipper-type vertical reaper with a lower part fixed to the lateral side surface of the platform 21 at any position from the pivot axis of the

arms

41, 41 to the front end of the

support arm

41, 41, and a plurality of cutting blades arranged in parallel in the vertical direction. In the combine 1 including the device 205, flexibility is provided to at least one of a side surface of the vertical reaping device 205 facing the scraping reel 24 and a side surface of the

support arms

41 and 41 facing the vertical reaping device 205. The buffer member 300 which has is arrange | positioned. Thereby, the direct collision between the side surface of the vertical cutting device 205 and the side surface of the support arm 41 can be prevented by the vibration of the combine 1 or the vertical cutting device 205.

Note that the present invention is not limited to the above-described embodiments and modifications, and the structures disclosed in the above-described embodiments and modifications are mutually replaced, the combinations are changed, the known technique, and the above-described implementations. Configurations in which the configurations disclosed in the embodiments and modifications are mutually replaced or the combinations are changed are also included. Further, the technical scope of the present invention is not limited to the above-described embodiments, but extends to the matters described in the claims and equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Combine, 2 ... Running part, 3 ... Airframe, 4 ... Cutting part, 5 ... Threshing part, 6 ... Sorting part, 7 ... Exclusion processing part, 8 ... Driving part, 9 ... Grain storage part, 10 ... Motor , 11 ... engine, 12 ... unloading body for bagging, 20 ... feeder house, 21 ... platform, 22 ... mowing device, 23 ... divider, 24 ... take-up reel, 25 ... take-in auger, 26 ... lifting hydraulic cylinder, DESCRIPTION OF SYMBOLS 27 ... Conveyor, 29 ... Conveyor belt, 32 ... Auger spindle, 35 ... Cutting blade, 40 ... Arm spindle, 41 ... Support arm, 42 ... Reel raising / lowering cylinder, 43 ... Reel spindle, 44 ... Rotation support body, 45 ... Tine bar pivot, 46 ... Tine bar, 47 ... Tine, 51 ... Tine posture maintaining mechanism, 52 ... Interlocking mechanism, 60 ... Main shaft transmission mechanism, 61 ... Cut main shaft, B ... Base, 62 ... Reel transmission mechanism, 63 ... Ogre transmission mechanism, 6 ... Cutting blade transmission mechanism, 65 ... Counter shaft, 70 ... Drive sprocket, 71 ... Drive sprocket, 80 ... Reel drive sprocket, 81 ... Intermediate shaft, 82 ... Drive sprocket, 83 ... Reel drive chain, 85 ... Drive sprocket, 86 ... Drive sprocket, 87 ... interlocking chain, 93 ... auger drive sprocket, 94 ... auger driven sprocket, 95 ... auger drive chain, U1 ... rice wheat unit, U2 ... millet unit, 100 ... rotation conversion mechanism, 101 ... inclined head, 102 ... Inclined axial center, 103 ... Inclined boss, 104 ... Supporting pin, 105 ... Rotation conversion mechanism, 105a ... Inclined head, 105b ... Inclined axial center, 105c ... Inclined boss, 105d ... Supporting pin, 105e ... Yoke, 106 ... Transmission rod, 107: swing arm, 108: link mechanism, 109: yoke, DESCRIPTION OF SYMBOLS 10 ... 1st transmission rod, 111 ... 1st interlocking belt mechanism, 112 ... Input shaft, 113 ... Traveling-system drive mechanism, 114 ... Traveling-system output shaft, 115 ... Harvesting part drive shaft, 117 ... Threshing clutch, 118 ... Threshing part Drive shaft, 119 ... belt transmission mechanism, 120 ... swing arm, 121 ... rotor drive shaft, 122 ... threshing transmission belt mechanism, 127 ... mowing section transmission mechanism, 128 ... mowing clutch, 130 ... link mechanism, 131 ... first conveyor 132a ... No. 2 conveyor shaft, 132b ... Second conveyor, 133 ... Oscillating sorter, 134 ... Tangyo support shaft, 135 ... First conveyor support shaft, 136 ... Second conveyor support shaft, 137 ... Oscillating action shaft, DESCRIPTION OF SYMBOLS 140 ... 1st support material, 141 ... 1st interlocking belt mechanism, 142 ... 2nd interlocking belt mechanism, 143 ... 3rd interlocking belt mechanism, 144 ... 4th interlocking belt mechanism, 145 ... Output shaft DESCRIPTION OF SYMBOLS 146 ... Rotor, 150 ... 1st pivot member, 160 ... Kara, 200 ... Link mechanism, 205 ... Vertical cutting device, 206 ... Supporting member, 201 ... Link mechanism, 202 ... Transmission rod, 203 ... Link mechanism, 204 ... Cutting blade part, 300 ... buffer member, 210 ... second pivot member, 220 ... second transmission rod, 230 ... second support member, 240 ... third pivot member, 250 ... swing arm, 260 ... link mechanism, 270 ... reaping device, 280 ... divider, 290 ... vertical mowing device, 291 ... link mechanism, 292 ... transmission rod, 293 ... link mechanism, 294 ... reaping device, 300 ... buffer member, 400 ... gear, 410 ... gear

Claims

It is a cereal reaping device provided with a reaping device provided with a clipper-type cutting blade at the front of the body,
A drive shaft that is horizontally supported with respect to the machine body and rotates about a lateral axis;
A rotation conversion mechanism linked to the end of the drive shaft;
A transmission shaft group that is disposed in the front-rear direction of the body body and that reciprocally drives the cutting blade of the reaping device left and right by interlockingly connecting to the output side of the rotation conversion mechanism;
The transmission shaft group includes an input swing shaft connected at a starting end to the rotation conversion mechanism, and the input swing shaft having a different axis from the input swing shaft via a predetermined power transmission mechanism. And an output swing shaft that rotates in conjunction with each other.
The corn harvester according to claim 1, wherein one end of the output swing shaft is linked and connected to one end of the cutting blade through a linear conversion mechanism to reciprocate the cutting blade of the cutting device left and right.
The output swing shaft and the reaping device are a unit that can be handled integrally,
The cereal trimming apparatus according to claim 1, wherein the unit is removable from the main body while leaving the input swing shaft in the main body.
The rotation conversion mechanism converts rotation around the lateral axis of the drive shaft into reciprocating rotation around the longitudinal axis of the input swing shaft,
The predetermined power transmission mechanism reciprocally rotates the output rocking shaft around the longitudinal axis by transmitting the reciprocating rotation around the longitudinal axis of the input rocking shaft to the output rocking shaft. 3. The grain reaper harvesting device according to claim 1 or 2, characterized in that it is a link mechanism.
A clipper-type main cutting device in which a plurality of cutting blades are arranged in parallel in the left-right direction;
A platform of a predetermined width disposed in front of the fuselage and having the main cutting device fixed to the front end;
A pair of left and right lifting arms supported so as to be pivotable at the rear end on the left and right sides of the platform at a position rearward of the fixed position of the main cutting device;
Reel-type scraping devices that are disposed above the main reaping device and are respectively supported at the middle positions of the pair of left and right lifting arms, with the left and right ends of the rotation shaft oriented in the left-right direction;
The lower part is fixed to the lateral side surface of the platform at any position from the pivot axis of the lifting arm to the front end of the lifting arm so that the cutting blade is located outward from the lifting arm, and a plurality of the cutting blades are vertically arranged. Hair clipper-type secondary mowing device with parallel cutting blades,
In a grain reaper harvesting device comprising:
A flexible buffer member is disposed on at least one of a side surface of the sub-trimming device facing the scavenging device and a side surface of the lifting arm facing the sub-reaching device. Cereal harvesting device.
The cereal harvester according to claim 4, wherein the buffer member is disposed from the upper end of the auxiliary harvester to the middle in the vertical direction.
6. The grain reaper harvesting apparatus according to claim 4 or 5, wherein the buffer member is arranged corresponding to a movable range of the lifting arm when the grain harvesting apparatus is used.