JP5083446B2 - Combine - Google Patents

Description

The present invention relates to a combine.

The combine drives the crawler travel device, the reaping device, the threshing device, and the auger using the power obtained by shifting the engine rotation by a gear type transmission mechanism and a hydrostatic continuously variable transmission (HST). An agricultural machine that harvests grains from cereals.

The harvesting device of the combine is provided with a weeding tool (weeding member) for each planting line that introduces the planted cereals of the field before harvesting while separating it toward the raising device for each planting line. Yes.

For example, the weeding tool provided in the harvesting device for a combine described in Patent Document 1 is a weed that normally faces forward in order to shorten the vehicle length by the amount of the weeding tool when storing the combine in the garage. A configuration is described that can be rotated 90 degrees to turn the tool sideways.

JP 2001-251934 A

In the combine of the above-mentioned patent document 1, when storing a combine in a garage, it was necessary for an operator to turn a grass tool facing forward by a human side.
Further, if the direction of the weeding tools can be changed not only when stored in the garage but also when harvesting grains, the harvesting workability of the combined grain can be improved accordingly.

However, when working with the right weeding tool open, it is usually a case of three-row cutting if it is two-row cutting. In this case, the amount of threshing increases, and the waste in the handling room is reduced. The amount generated may increase and threshing loss may increase.

In order to solve the above-mentioned problems, the present invention takes the following technical means.
That is, the invention according to claim 1 is characterized in that the threshing device (15) is mounted on the upper part of the traveling frame (2) provided with the crawler type traveling device (3) and can be raised and lowered at the front portion of the traveling frame (2). in combined provided Do cutting device (6), is divided grass rotating member (7 R) into right outer right end of the Bunkusa member provided in the cutting device (6) (7, 7 R) operation provided lever (49), in conjunction with the operation of the operating lever (49), minute grasses member at the right end (7R) min grass members of the left and right end portions pivoted to the right outer (7,7R) A combine that is configured to increase the driving speed of the feed chain (14) provided in the threshing device (15) while increasing the breadth introduction width of the reaping device (6) formed between It is a thing.
According to a second aspect of the present invention, the operation lever (49) is disposed on a side operation panel (22) provided on the left side portion of the cockpit (20), and the operation lever (49) is located above the rotation fulcrum. The portion is formed in an L shape in a side view, and one end of the first wire (133) and one end of the second wire (130) are connected to the base of the operation lever (49), and the first wire (133) The other end of the second wire (130) is connected to the right end of the arm (132) integrally provided at the base of the right end weeding member (7R), while the feed chain (14) is driven. 2. A combine according to claim 1, wherein the continuously variable transmission belt (39) provided in the step is connected to a clutch (C1) capable of changing the tension.

According to the first aspect of the invention, the weeding member (7R) at the right end is opened to the right outside by the operation of the operating lever (49), and the harvesting width of the harvesting device (6) is expanded and harvested. The number of cereal grains can be increased.
And, when the weeding member (7R) at the right end portion is rotated rightward in this way to perform the cutting operation, the amount of threshing increases and the generation of sawdust in the handling room of the threshing device (15). Although the amount increases and threshing loss may increase, this can be prevented by increasing the drive speed of the feed chain (14).
According to the invention described in claim 2, in order to achieve the effect of the invention described in claim 1, the operation lever (49) is disposed on the side operation panel (22) provided on the left side of the cockpit (20). Therefore, the rotation operation of the weed member (7R) at the right end can be easily performed from the cockpit (20), and the operability of the weed member (7R) at the right end is improved.
Moreover, since the upper part from the rotation fulcrum of the operation lever (49) is formed in an L shape in a side view, the space between the threshing device (15) and the side operation panel (22) is used. Since the length of the operation lever (15) can be made sufficiently long, the operation load of the operation lever (15) can be reduced.

It is a left view of a combine. It is a top view of the combine of FIG. It is a side cross-sectional schematic of the combine threshing apparatus of FIG. FIG. 2 is a drive path development view using the engine of the combine of FIG. 1 as a drive source. FIG. 2 is a partial development view of a drive path in which the engine of the combine in FIG. 1 is used as a drive source. FIG. 2 is a side view showing a part of the side operation panel of the combine of FIG. 1 in a longitudinal section. It is a partial expanded view of a combine. It is a top view when the harvesting part of the combine of FIG. 1 is right-justified. It is a top view when the harvesting part of the combine of FIG. 1 is left-justified. FIG. 8 is a partial development view of the drive path of the combine of FIG. 7. FIG. 8 is a partial development view of the drive path of the combine of FIG. 7. FIG. 8 is a partial development view of the drive path of the combine of FIG. 7. It is a left view of a combine. It is a top view of the combine of FIG. It is a perspective view (Drawing 15 (a)) and a longitudinal section (Drawing 15 (b)) of a delivery part of a combine harvester and a threshing device.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a left side view of a combine 1 that performs a grain harvesting operation according to an embodiment of the present invention, FIG. 2 is a plan view of the combine 1, and FIG. 3 is a schematic side sectional view of a threshing device 15 of the combine 1. FIG. 4 is a drive path development view using the engine of the combine 1 as a drive source.

In the present specification, the left side and the right side refer to directions in which the combine moves forward, and the front side and the rear side refer to the forward side and the reverse side of the combine, respectively.
A pair of left and right crawlers 4 made of a flexible material such as rubber are formed at the bottom of the traveling frame 2 of the combine 1 shown in FIG. 1 and the like, and the crawler 4 is used not only in dry fields but also in wet fields. Is provided with a traveling device 3 configured to be able to travel freely by slightly sinking, a cutting device 6 is mounted on the front portion of the traveling frame 2, and an engine 21 (FIG. 4) and a threshing device 15 are mounted on the upper portion of the traveling frame 2. The cockpit 20 and the Glen tank 30 are mounted.

The reaping device 6 is configured to raise and lower the entire reaping device 6 by an expansion and contraction action of a reaping lifting cylinder (not shown), and to harvest cereals to be planted on a farm field at a predetermined height. In the lower part of the front end of the mowing device 6, weeding tools (weeding members) 7 and 7R are arranged. ing. As shown in FIGS. 1 and 2, between the cutting blade 11 and the starting end of the feed chain 14 of the threshing device 15, the front conveying device 8, the supply conveying device 9 and the like are successively transferred and treated in depth. It is arranged so that it can be adjusted.

The operation of the harvesting device 6 of the combine 1 is performed as follows. First, the engine 21 is started, and a cutting clutch (not shown) is engaged with the cutting clutch lever 47 shown in FIG. 2, and the threshing clutch (not shown) is operated with the threshing clutch lever 48 to rotate the aircraft. When the main transmission lever 10 is operated so that the combine 1 moves forward while the power is transmitted to each part, and the traveling frame 2 is moved forward, the cutting operation and the threshing operation are started. The cereals to be planted in the field are subject to weeding by the weeding tools 7 and 7R at the lower front end of the reaping device 6, and then the cereals are raised and if the device 5 is in a lying state, it is brought upright. Then, the stock of the culm reaches the cutting blade 11 and is cut and is scraped into the front conveying device 8 and conveyed rearward, inherited by the supply conveying device 9 and sequentially conveyed upward in the rear part. The

The cereals are handled by the supply / conveyance device 9, adjusted in depth, passed to the start end of the feed chain 14, and supplied to the threshing device 15. In the threshing device 15, a handling chamber 66 with a handling cylinder 69 is arranged on the upper side, and a sorting chamber 50 is integrally provided on the lower side of the handling chamber 66 to thresh and sort the supplied harvested cereal meal.

The cereals supplied to the threshing device 15 are sent to the handling room 66, which is the main threshing section shown in FIG. 3, and threshed, and the grain with the highest specific gravity passes through the first cereal cylinder 16 (FIG. 1) to the grain tank. 30 and is temporarily stored in the Glen tank 30.

The remaining threshing waste that has reached the end of the handling chamber 66 of the threshing device 15 and remains long is transported by being sandwiched between a culling chain and a culling head chain (not shown). After being put into a straw cutter (not shown), it is cut and released to the field.

A grain tank helix 83 (FIG. 4) for transferring grains is provided at the bottom of the glen tank 30, and a drive system for a discharge auger comprising a vertical auger 18 and a horizontal auger 19 is provided on a helical drive shaft 84 that drives the glen tank helix 83. The grains that are connected and stored in the Glen tank 30 are discharged to the outside of the combine 1 from the discharge auger discharge port. The Glen tank spiral 83, the vertical auger spiral 89, and the horizontal auger spiral 90 are rotated and driven by the power of the engine 21, and convey the stored grains by the screw conveyor action of the respective spiral blades.

The handling depth of the cereals harvested by the reaping device 6 is adjusted by the supply and transport device 9 attached to the reaping device 6 and inserted into the handling chamber 66 which is the main threshing portion of the threshing device 15 while being transported by the feed chain 14. Is done. A large number of teeth 69a are provided on the surface of a handling cylinder 69 that is mounted on the handling chamber 66, and the handling cylinder 69 is rotated by the power from the engine 21 by a driving mechanism shown in FIG. The cereal grains with grains inserted into the handling chamber 66 are sandwiched between the feed chain 14 and the spring-biased feed chain clamp 13 (FIG. 1), and are moved in the direction of arrow A in FIG. While being transferred, it is threshed by the teeth 69a of the rotating handle 69. The object to be processed (grains and wastes) separated from the cereal basket passes through the receiving basket 74 shown in FIG. 3 in the direction of the arrow C1 and is received by the swing shelf 51.

Since the swing shelf 51 swings up and down and back and forth by the operation of a swing shelf drive mechanism (not shown), the object to be processed receives air from the Karatsu 79 while moving in the direction of arrow D (FIG. 3). The grain having a high specific gravity passes through the sheave 53 and the sorting net 63 in the direction of arrow E, is accumulated on the first shelf 64, and is conveyed from the first spiral 65 to the grain tank 30 via the first lifting cylinder 16. The The grains stored in the Glen tank 30 are conveyed to the outside of the combine 1 via the augers 18 and 19.

Among the objects to be processed on the swing shelf 51, those that do not fall move in the direction of arrow D on the sheave 53 by the swing action of the swing shelf 51 and the blowing action by the fan 79 a of the tongue 79. The second thing falls from the top of the Strollack 62 in the direction of the arrow G, etc., is collected on the second shelf board 85, and conveyed to the second lifting cylinder 87 by the second spiral 86. The first spiral 65 and the second spiral 86 are simultaneously driven at the same speed by the driving belt 91 (FIG. 4).

No. 2 which is a mixture of normal grains, branch boughs, sawdust and scorpion grains in which normal grains are stabbed in the sawdust, It is transported in the direction of arrow H (FIG. 3) by the cylindrical helix 88 (FIG. 4) and discharged upward from the second processing chamber 67 from the second processing chamber inlet. A part of the object to be processed is obtained by separating the second object and removing the branch infarction of the branch incision grains while colliding with a number of the processing teeth 70a of the second processing cylinder 70 pivoted in the second processing chamber 67. As shown in FIG. 3, the (third product) moves a receiving mesh rod 74 provided below the second processing cylinder 70 in the direction of arrow Q. Thereafter, the second object passes from the end of the second processing cylinder 70 in the direction of the arrow C3 and falls onto the swing shelf 51 and joins the object to be processed from the handling chamber 66.

In addition, among the objects to be processed that have reached the end of the object to be processed conveyance direction of the handling chamber 66, short objects such as sawdust enter the dust disposal chamber 68 through the dust disposal chamber entrance, and the dust disposal chamber 68. Then, it is processed while being conveyed in the direction of the arrow K by the spiral 71a of the dust removal processing cylinder 71 rotating integrally with the second processing cylinder 70, and the waste is crushed and together with the grains remaining in the waste, the direction of the arrow C4. And passes through the net 76 and falls into the sorting chamber 50.

As shown in FIG. 4, the gear type transmission mechanism of the transmission 24 includes a steering transmission unit 24a, an intermediate transmission unit 24b, a sub-transmission unit 24c, and a counter unit 24d (input / output) from the lower side of the transmission path in the traveling transmission case 25. And the input / output unit 26 to transmit rotational power from the input / output unit 26 to the steering transmission unit 24a via the counter unit 24d, the auxiliary transmission unit 24c, and the intermediate transmission unit 24b. In addition, the traveling direction of the airframe can be turned to the right side or the left side by switching the steering transmission unit 24a.

In the HST 28, an input pulley 35 that receives a driving force from the engine 21 is detachably attached to a shaft end portion of a hydraulic input shaft 33 protruding to the side of the case 29. Further, a variable hydraulic pump 28a and a rotatable portion can be rotated in the case 29. A fixed quantity hydraulic motor 28b having an output shaft 26a provided in is provided.

The inclination angle of the swash plate 28c of the hydraulic pump 28a can be changed by the main transmission lever 10, and the amount of oil discharged from the variable hydraulic pump 28a and the direction of oil discharge are changed according to the inclination angle of the swash plate 28c. The rotational speed and direction of the output shaft 26a in the input / output unit 26 connected to the quantitative hydraulic motor 28b are adjusted.

Also, the input pulley 35 provided on the hydraulic input shaft 33 is configured such that power from the engine 21 is transmitted via a belt 40 from a pulley 38 provided on the output shaft 37 of the engine 21 to drive the HST 28. The input pulley 35 is detachably provided on the traveling frame 2 below the cockpit 20 and is configured to automatically control the fuel supply amount and output a preset rotation speed even when the load fluctuates. The rotational power output from the HST 28 is transmitted to the input / output unit 26 of the transmission 24 via a transmission mechanism.

The reaping device 6 and the feed chain 14 are respectively provided with a reaping portion transmission pulley 43 detachably attached to respective shaft end portions of the output shaft 42 and the output shaft 44 protruding from the input / output portion 26 and for driving the feed chain . Power from the HST 28 is transmitted through the continuously variable transmission type belt 39.

Clutch C1 of the feed chain, due stepless type belt 39 provided on the output shaft 44 and is not shown to switch the speed of the feed chain 14 in manual lever to change the speed for cutting the conveyance of the feed chain 14, Condition adaptability can be improved.

A belt 46 is wound between the cutting input pulley 92 and the cutting portion transmission pulley 43 to transmit power to the input / output unit 26 for driving the cutting device 6, and the cutting clutch lever 47 is operated. A tension clutch (not shown) is actuated to tension or release the belt 46, thereby constituting a tension clutch that turns on and off the transmission of rotational power.

The threshing device 15 has a feed chain 14 that rotates in the advancing direction of the machine body at one side, and sandwiches and conveys the root portion of the cereal that has been transported by the feeding and conveying device 9 of the reaping device 6. This is a self-destructive configuration in which the chopping is sent into the handling chamber 66 and threshed, and is mounted on the traveling frame 2 and is detachably attached with a fixture such as a bolt or nut.

A belt 105 is wound around the engine output shaft 37 between the output pulley 101 and the grain discharge input pulley 103 of the input unit 102 of the grain discharge auger, and the helical drive shaft 84 in the Glen tank 30 is driven. Yes.

When the aircraft is moved in front of or near the cedar, the driver operates the throttle lever (not shown) to adjust the rotational speed of the working part of the aircraft, the position of the aircraft relative to the culm row, and the reaping device for the culm After reconfirming that the height position 6 is properly selected, the main transmission lever 10 is tilted forward to select a desired work speed, and the work is started.

The processing of the cereal after harvesting is as outlined above.
A suction fan 110 (FIG. 3) is provided at the rear part of the threshing device 15, and among the dust discharged in the threshing device 15, the air containing the lighter specific gravity waste, branch branch, and dust is rotated via the counter shaft 111. The air is sucked by blowing air from the suction fan 110, blown out from the outlet of the suction fan 110, and discharged outside the combine 1.

The threshed cereals in the workpiece that have reached the end of the handling chamber 66 and are kept long are put into a waste treatment chamber (not shown). When a damper (not shown) at the entrance of the waste treatment chamber is opened, the waste falls from the entrance of the waste treatment chamber and drives a not-shown soot cutter provided on the counter shaft 111 (FIG. 4). It is transmitted by the pulley for cutting and cut by the cutter for scissors.

Power is transmitted to the handling cylinder 69 of the threshing device 15 from the handling cylinder rotating shaft 113 of the pulley 112. In addition, the red pepper 79 is rotated from the pulley 115 provided on the rotary shaft 114 of the threshing input pulley 96 via the belt 117 and the pulley 118, so that the red pepper fan 79a is rotated. Further, the first helical shaft 122 and the second helical shaft 123 are driven through another pulley 116 of the rotary shaft 119, and power is transmitted from the pulley 116 to the counter shaft 111, so that the suction fan 110 and the hook cutter are driven. The

This embodiment is characterized in that the weeding tool 7R at the right end can be operated with a remote controller.
As shown in FIG. 2, the weeding tool operating lever (operating lever) 49 of the right weeding tool 7 </ b> R is arranged in the outer portion of the side operation panel 22 on the side of the cockpit 20. Therefore, since the operation of the weeding tool 7R can be easily performed from the cockpit 20, the operability of the weeding tool 7R is improved as compared with the prior art.

The side operation panel 22 is divided into the front and rear side operation panels 22a and 22b in the front and rear direction, and the reaping clutch lever 47, the threshing clutch lever 48, and the weeding tool operation lever are arranged on the rear side operation panel 22b. 49, and the weeding tool operating lever 49 of the weeding tool 7R was provided outside the cutting and threshing clutch levers 47 and 48. As described above, the cutting and threshing clutch levers 47 and 48 with high operation frequency are arranged in front of the cockpit 20 and the operation tool 49 with low frequency of operation is arranged on the outside to operate the levers 47 to 49. Can be performed without interfering with each other.

Moreover, since the upper side from the rotation fulcrum of the above-mentioned weeding tool operation lever 49 is L-shaped in a side view, the space between the threshing device 15 and the side operation panel 22 can be used over the entire area, and further weeding Since the tool operating lever length can be made sufficiently long, the lever operating load can be reduced in a limited space.

Further, when the weeding tool operating lever 49 provided on the front side operation panel 22b is rotated forward, it is located on the lateral side of the forward shift region of the main transmission lever 10 and on the outer portion. Since the weeding tool operation lever 49 rotated to the front side is arranged so that the operation of the weeding tool operation lever 49 does not become an obstacle to the operation of the main transmission lever 10, both levers are operated. Operations of 10 and 49 can be facilitated.

Further, the cutting device 6 can slide all the weeding tools 7 and 7R to the left side which is the uncut grain side by the cutting slide mechanism 131 as shown in the drive path development view of FIG. When returning to the standard position), a mechanism for opening the right weeding tool 7R from the two-dot chain line position to the solid line position by operating the weeding tool operating lever 49 is attached. When the cutting tool 7R at the right end is opened, the introduction width of the cereals can be expanded, and the cereals for 3 stalks can be harvested instead of 2 stalks.

The mechanism for opening the right end weeding tool 7R from the two-dot chain line position to the solid line position by operating the weeding tool operating lever 49 is integrated with the weeding tool 7R provided at the base of the right end weeding tool 7R. The arm 132 has a rotating central axis, and extends in the left-right direction. The right end portion of the arm 132 and the weeding tool operating lever 49 are connected by a wire (first wire) 133. When the lever 49 is rotated from the solid line position to the dotted line position, the arm 132 rotates about the rotation fulcrum 132a, and the right weeding tool 7R can be opened in conjunction with the movement of the arm 132.

In the combine, when the pretreatment unit including all the weeding tools 7 and 7R of the mowing device 6 is moved to the left side, the mowing operation is performed in the wet field, and the left crawler sinks, and the mud that rises is uncut. This is to avoid defeating the trap. When the pretreatment unit including all the weeding tools 7 and 7R of the reaping device 6 is moved to the right side, it is during the mowing work in the dry rice field, and this is the standard position of the reaping device 6.

Further, in conjunction with the opening operation by operating the weeding tool operating lever 49 of the right weeding tool 7R, as shown in FIG. 4, the subtransmission unit 24c of the subtransmission 24 is changed to the low speed side by the wire 134. It can be set as a structure and the traveling speed of the combine 1 can be lowered | hung and the amount of processing of the above-mentioned threshing can be prevented.

In addition, an interlocking mechanism that regulates the acceleration upper limit position of the main transmission (HST) lever 10 in conjunction with the operation of opening the weeding tool 7R at the right end by the operation of tilting the weeding tool operating lever 49 forward. (A wire for connecting an upper limit position restriction arm (not shown) to the cutting support arm 12 and the main transmission HST lever 10 disposed on the operation panel) may be provided.

Further, as shown in FIG. 5, the feed chain 14 may be accelerated in conjunction with the operation of the L-shaped weeding tool operating lever 49 that opens the rightmost weeding tool 7R. In this interlocking mechanism, the other end of the wire (second wire) 130 having one end connected to the base of the weeding tool operating lever 49 is connected to the clutch C1 that changes the tension of the continuously variable transmission belt 39 of the feed chain drive mechanism. Keep it.

When the weeding tool 7R at the right end is opened and operated by operating the weeding tool operating lever 49, it is a case where it is used as (N + 1) cutting if it is normally an N-row cutting combine (N triggers). (N + 1) When shave, the amount of threshing increases, and the amount of waste generated in the handling chamber 66 may increase, resulting in an increase in threshing loss. To prevent this, the feed chain drive speed is increased. .

In the above configuration, the cutting clutch lever 47 and the threshing clutch lever 48 are disposed adjacent to the weeding tool operating lever 49 of the weeding tool 7R, but the operation direction of the cutting clutch lever 47 and the threshing clutch lever 48, and the weeding tool The opening operation direction of the weeding tool 7R by the operation lever 49 is set to the front. The operating directions of the three levers 47 to 49 are all directions in which the load increases, and the increasing directions of the operating loads of the three levers 47 to 49 are unified in the same direction. There are no operational mistakes that produce a large amount of power.

Further, as shown in a side view showing a partial longitudinal section of the side operation panel 22 in FIG. 6, the side operation panel 22 is divided into two parts in the front and rear, and a cutting clutch lever 47 and a threshing clutch lever 48 are provided on the rear panel 22b. Working levers such as the weeding tool operating lever 49 are arranged, and the traveling levers such as the main transmission lever 10, the auxiliary transmission lever 145, and the power steering lever 146 are arranged on the front panel 22a, and the rear panel 22b can be opened and closed freely. It is said. With this configuration, the levers 47 to 49 inserted into the lever guide grooves provided in the rear panel 22b are only the cutting clutch lever 47, the threshing clutch lever 48, and the weeding tool operation lever 49, and the rear panel 22b is It can be easily removed upward, and maintenance such as wire adjustment of the bases of the levers 47 to 49 arranged on the lower side of the panel 22b can be easily performed.

Next, a description will be given of an embodiment provided with a configuration in which the mowing device 6 is manually slid in the left-right direction and the weeding tool 7R at the right end is opened.
FIG. 7 is a partial development view of the drive path of the reaping device 6 as another embodiment of the present invention.

As shown in FIG. 7, the cutting slide mechanism 131 is moved from the position indicated by the two-dot chain line to the position indicated by the solid line (the already-cutting side) that is a standard position assuming the cutting work even in the dry paddy. Alternatively, a configuration may be adopted in which an interlocking mechanism is attached so that the weeding tool 7R at the right end is opened when it is manually slid back. As described above, when the right-side weed cutting tool 7R is opened, the introduction width of the cereals can be expanded, and the cereals for 3 stalks can be harvested instead of 2 stubs.

The cutting slide mechanism 131 has a pair of link members 125 and 125 that can rotate around a rotation shaft 131a connected to the cutting support arm 12 and the branch arm 12a, and the distal ends of the link members 125 and 125 rotate. It consists of a weeding tool mounting member 126 to which all weeding tools 7 and 7R that are freely connected are mounted.

An attachment piece 125b is provided on the rotation shaft 131a of the one link member 125, and one end of a wire 128 is connected to the attachment piece 125b, and the other end of the wire 128 is connected to the base of the weeding tool 7R at the right end. And an arm 132 having a central axis that rotates integrally with the weeding tool 7R.

When the cutting slide mechanism 131 slides to the right side, the attachment piece 125b is rotated, and the weeding tool 7R at the right end is opened through the wire 128 connected to the attachment piece 125b. Since this is a dry paddy state, the weeding tool 7R is opened, and an additional cut is made for one line to improve work efficiency.

That is, as shown in FIG. 8, when the pretreatment unit including the weeding tools 7 and 7R of the cutting device 6 is returned to the standard position indicated by the solid line, the weeding tool 7R at the right end is linked with the operation. Therefore, the distance L3 between the right end portion of the right crawler 4 and the weeding tool 7R is reduced, and it is possible to prevent the right crawler 4 from stepping on the uncut shears W2. This is (the distance between the right end of the right crawler 4 and the weeding tool 7R (L3 + L4) (the distance L3 is the distance between the right end of the right crawler 4 and the weeding tool 7R, and the distance L4 is the right end of the right crawler 4). When the cutting tool 7R of the right crawler 4 shown by the solid line is in the unopened position (R1), the combine 1 can be used as a whole to cut the uncut chopping W1. At this time, the distance L4 between the right end of the crawler 4 on the right side and the uncut chopstick W2 is smaller than the distance L4 shown in Fig. 8, and the right crawler 4 may step on the uncut chopstick W2. There is.

Moreover, when moving the pre-processing part including the weeding tools 7 and 7R of the cutting device 6 to the left, the weeding tool 7R at the right end of the weeding tools 7 and 7R in the standard state is closed. Moving. When the pretreatment unit including the weeding tools 7 and 7R is moved to the left as described above, the distance (L2) between the left end portion of the left crawler 4 and the weeding tool 7 at the left end portion as shown in FIG. 9 for the following reason. Becomes larger than the distance (L1) in the standard state. That is, in the normal two-line cutting, the combine turns to the left to cut the cereal, and as described above, the pre-processing unit including the weeding tools 7 and 7R is moved to the left so that the left end portion and the left end portion of the left crawler 4 Increasing the distance of the weeding implement 7 is advantageous because it does not push down the planted grain culm in the field.

Also, if the right end weeding tool 7R is open when moving the pretreatment unit including the weeding tools 7 and 7R to the left, the weeding tool 7R that has opened the processing basket of the previously harvested corn straw will push. Therefore, in order to prevent this, the weeding tool 7R is closed to obtain an appropriate weeding width.

Further, an interlocking mechanism can be provided so that the feed chain 14 is accelerated in conjunction with the manual opening operation of the right weeding tool 7R.
That is, when working with the right weeding tool 7R open, it is usually the case of three-row cutting if it is two-row cutting. In this case, the amount of threshing increases, There is a possibility that the generation amount of swarf increases and threshing loss increases. Therefore, as shown in FIG. 10, a clutch C1 for changing the tension of the cutting support arm 12 and the continuously variable transmission belt 39 for driving the feed chain is provided, and the arm interlocked with the opening operation of the weeding tool 7R at the right end. The right end portion of 132 and the clutch C1 are connected by the wire 45, and the grain conveying speed of the feed chain 14 is increased by opening the weeding tool 7R at the right end portion.

Furthermore, as shown in FIG. 11, an interlocking mechanism may be provided that changes the auxiliary transmission unit 24 c of the auxiliary transmission device 24 to the low speed side in conjunction with the operation of manually opening the weeding tool 7 </ b> R at the right end. The interlock mechanism is configured such that the other end of the wire 133 having one end connected to an attachment piece 125b provided on the rotation shaft 131a of one link member 125 is connected to the gear group shift mechanism 135 of the auxiliary transmission unit 24c of the auxiliary transmission 24. It is a connected configuration.

Then, when the cutting slide mechanism 131 slides to the right, the attachment piece 125b rotates, and the weeding tool 7R at the right end opens through the wire 128 connected to the attachment piece 125b, and at the same time, the auxiliary transmission device is connected by the wire 133. 24 sub-transmission parts 24c change to the low speed side.

As a result, when working with the weeding tool 7R opened, the amount of threshing increases as described above, and the amount of waste generated in the handling chamber 66 increases, which may increase the threshing loss. In order to prevent this, the traveling work speed of the combine 1 can be reduced.

Further, as shown in FIG. 12, an interlocking mechanism (a mowing support arm) that regulates the acceleration upper limit position of the main transmission HST lever 10 in conjunction with the manual opening operation of the right end weeding tool 7R. 12 and a main transmission HST lever 10 disposed on the operation panel may be provided with a wire 137) for connecting the upper limit position restricting arm 136 to the main transmission HST lever 10. This is because, when working with the weeding tool 7R opened, the processing amount of threshing increases as described above, so the working speed is lowered so that the amount of waste generated in the handling chamber 66 does not increase.

Further, in the combine 1 of the embodiment shown in the side view shown in FIG. 13 and the plan view shown in FIG. 14, the unlocking lever 140 and the weeding tool operating lever 49 of the cutting slide mechanism 131 are arranged close to the outside of the operation panel 22. It is a structural example. With this configuration, the lock release lever 140 and the weeding tool operation lever 49 can be easily operated at the cockpit 20. 13 and 14 show a configuration in which a cutting dust-proof cover 141 is provided above the cutting device 6 and the weeding tool operating lever 49 is disposed outside the cutting dust-proof cover 141. In this case, since the operation of the cutting slide mechanism 131 and the opening / closing operation of the right end weeding tool 7R are performed simultaneously, the operability is improved.

As shown in FIG. 14, when the weeding tool operating lever 49 is disposed in the vicinity of the pulling device 5a on the right side of the cutting device 6, the weeding tool operating lever 49 of the weeding tool 7R can be configured integrally with the cutting device 6. When removing the cutting device 6 from the body of the combine 1, the weeding tool operating lever 49 of the weeding tool 7R can also be removed integrally, so the detachability of the cutting device 6 is good.

Moreover, in the combine 1 of a present Example, as shown in the perspective view of Fig.15 (a), and the longitudinal cross-sectional view of FIG.15 (b), it passes over the inlet funnel 15a of the threshing device 15 from the reaping device 6 which can be slid to right and left. The two rubber plates 150 and 151 are partially overlapped and installed. Among the two rubber plates 150 and 151, the rigidity of the lower rubber plate 150 fixed to the reaping device 6 on the feed chain 14 side is increased, and only the upper rubber plate 151 follows the slide mechanism of the reaping device 6. It is configured to do.

The lower rubber plate 150 is bent and rounded as shown in the drawing to increase rigidity. Further, since the rigidity of the lower rubber plate 150 is increased, even if the upper rubber plate 151 is lightened, the upper rubber plate 151 does not hang down, so that it is possible to prevent spilled spills. Further, the upper rubber plate 151 has better followability when the mowing device 6 slides in the left-right direction together with the mowing device 6.

2 traveling frame 3 traveling device 6 mowing device 7 weeding tool (weeding member)
7R Right end weeding tool (right end weeding member)
14 Feed chain 15 Threshing device
20 cockpit
22 side operation panel
39 belt 49 weeding tool control lever (control lever)
133 wire (first wire)
130 wires (second wire)
132 arms
C1 clutch

Claims (2)

A combine with a threshing device (15) mounted on the top of a traveling frame (2) having a crawler type traveling device (3), and a reaping device (6) that can be raised and lowered at the front of the traveling frame (2). in, provided Bunkusa member (7, 7 R) right end of the minute grasses member (7 R) an operating lever for rotating the outer right of the (49) provided in the cutting device (6), the operation in conjunction with the operation of the lever (49), reaper minute grass members at the right end (7R) is formed between the partial grass members of the left and right end portions pivoted to the right outer (7,7R) device (6 ) In which the driving speed of the feed chain (14) provided in the threshing device (15) is increased . The operation lever (49) is disposed on a side operation panel (22) provided on the left side of the cockpit (20), and an upper portion of the operation lever (49) from the rotation fulcrum is L-shaped in a side view. And connecting one end of the first wire (133) and one end of the second wire (130) to the base of the operating lever (49), and the other end of the first wire (133) is connected to the right end of the weed. A continuously variable transmission type that is connected to the right end of an arm (132) integrally provided at the base of the member (7R), while the other end of the second wire (130) is provided in the drive mechanism of the feed chain (14). The combine according to claim 1, wherein the combiner is connected to a clutch (C1) capable of changing the tension of the belt (39).

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