JP7117992B2 - combine - Google Patents

Description

The present invention comprises a crawler traveling device that supports a body frame, a harvesting unit that harvests planted grain culms in a field, a threshing device that is supported by the body frame and that threshes the harvested grain culms, and a body lateral of the threshing device. and a power transmission device provided on the outer side for transmitting the power of the power source to the threshing device.

In the combine harvester described above, between the side cover portion provided on the laterally outer side of the power transmission device and covering the power transmission device from the laterally outer side of the machine body, and between the lower end portion of the side cover portion and the lower end portion of the threshing device, A lower cover part is provided along the longitudinal direction of the machine body and covers the gap between the lower end part of the side cover part and the lower end part of the threshing device.
As this type of combine, there is a combine shown in Patent Document 1, for example. The combine disclosed in Patent Document 1 includes a plurality of lateral covers as side cover portions, and a front lower cover, an intermediate lower cover, and a rear lower cover as lower cover portions. there is

JP 2018-82650 A

When the conventional technology related to the lower cover part is adopted, even if dust such as straw scraps scattered around the threshing device enters the gap between the side cover part and the threshing device, it falls out through the opening provided in the lower cover part. It is possible. However, the mud thrown up by the crawler traveling device and directed toward the lower cover portion tends to enter the gap between the side cover portion and the threshing device through the opening.

According to the present invention, dust that has entered the gap between the side cover portion and the threshing device can be removed from the lower cover portion, and mud thrown up by the crawler traveling device can be removed from the lower cover portion between the side cover portion and the threshing device. To provide a combine harvester which easily avoids getting into a gap between two.

The combine according to the present invention comprises a crawler traveling device that supports a body frame, a reaper that reaps planted grain culms in a field, a threshing device that is supported by the body frame and threshes the harvested grain culms, and the threshing device. A power transmission device provided on the laterally outer side of the machine body for transmitting power of a power source to the threshing device, and a side cover provided on the laterally outer side of the machine body of the power transmission device and covering the power transmission device from the lateral outer side of the machine body. and between the lower end of the side cover part and the lower end of the threshing device, provided along the longitudinal direction of the machine body, and between the lower end of the side cover part and the lower end of the threshing device and a lower cover part that covers the gap between the lower cover part and the part located above the rear end side part of the crawler traveling device in the inclined state in the side view of the machine body and in the longitudinal direction of the machine body provided with a gap in the above, allowing dust to fall downward from the gap between the side cover portion and the threshing device, and receiving the mud thrown up by the crawler traveling device. A slant member is provided , and the plurality of slant members includes a plurality of slant members located on the front side with respect to the rear end portion of the crawler traveling device .

According to this configuration, since the inclined members are arranged at intervals, even if dust enters the gap between the threshing device and the side cover, the dust that has entered falls out from between the inclined members. Of the lower cover part, the inclined member is positioned in a portion where the mud thrown up by the crawler traveling device is likely to hit, and the inclined member receives the thrown-up mud, so even if the mud is thrown up by the crawler traveling device, the threshing does not occur. It is difficult for mud to enter the gap between the device and the side cover.
The combine according to the present invention comprises a crawler traveling device that supports a body frame, a reaper that reaps planted grain culms in a field, a threshing device that is supported by the body frame and threshes the harvested grain culms, and the threshing device. A power transmission device provided on the laterally outer side of the machine body for transmitting power of a power source to the threshing device, and a side cover provided on the laterally outer side of the machine body of the power transmission device and covering the power transmission device from the lateral outer side of the machine body. and between the lower end of the side cover part and the lower end of the threshing device, provided along the longitudinal direction of the machine body, and between the lower end of the side cover part and the lower end of the threshing device and a lower cover part that covers the gap between the lower cover part and the part located above the rear end side part of the crawler traveling device in the inclined state in the side view of the machine body and in the longitudinal direction of the machine body provided with a gap in the above, allowing dust to fall downward from the gap between the side cover portion and the threshing device, and receiving the mud thrown up by the crawler traveling device. A slant member is provided, and a guide member is provided at a position higher than the slant member for guiding dust in the gap between the side cover portion and the threshing device rearward and downward.
According to this configuration, since the inclined members are arranged at intervals, even if dust enters the gap between the threshing device and the side cover, the dust that has entered falls out from between the inclined members. Of the lower cover part, the inclined member is positioned in a portion where the mud thrown up by the crawler traveling device is likely to hit, and the inclined member receives the thrown-up mud, so even if the mud is thrown up by the crawler traveling device, the threshing does not occur. It is difficult for mud to enter the gap between the device and the side cover.
According to this configuration, since the dust that has entered the gap between the side cover and the threshing device is guided rearward and downward by the guide member, the dust is more likely to fall behind the slanted members than the slanted members. It can be difficult to clog.

In the present invention, it is preferable that the inclined member is inclined along a direction that intersects a direction in which mud is thrown up by the crawler traveling device.

According to this configuration, it is difficult for the mud received by the inclined member to scatter toward the gap between the threshing device and the side cover, so that the mud is prevented from entering the gap between the threshing device and the side cover. Easier to avoid.

In the present invention, among the plurality of inclined members, the inclined member located on the front side is inclined in a rearwardly raised state, and among the plurality of inclined members, the inclined member located on the rear side is inclined in a rearwardly lowered state. It is preferable to have

According to this configuration, when mud is thrown forward and upward by the crawler traveling device, the thrown-up mud is easily received by the front inclined member of the rearward upward slope, and the mud is thrown backward and upward by the crawler traveling device. In this case, the thrown-up mud is easily received by the rear-side inclined member of the rear downward inclination, so that the mud can be prevented from entering the gap between the threshing device and the side cover part.

In the present invention, among the plurality of inclined members, the inclined member located on the front side with respect to the rear end portion of the crawler traveling device is inclined in a rearwardly raised state, and among the plurality of inclined members, the crawler traveling The tilting member located rearwardly with respect to the rear end of the device is preferably tilted in a rearwardly downward state.

In the crawler traveling device when moving forward, the belt portion of the crawler belt that moves along the rear lower part of the wheel positioned at the rear end of the crawler traveling device moves in the rearward rising direction and is flipped up by this belt portion. The splashing direction of the mud that is applied becomes the backward rising direction. Of the crawler belts, the belt portion that moves along the rear upper portion of the wheel moves in the forward rising direction, and the direction in which mud is thrown up by this belt portion is the forward rising direction.

According to this configuration, not only is the mud splashed up in the rear-up direction easily caught by the inclined member in the rear-down state, but the received mud is scattered toward the gap between the threshing device and the side cover part. difficult to occur. Not only is the mud thrown up in the forward rising direction easily caught by the inclined member in the rearward rising state, but the received mud is less likely to scatter toward the gap between the threshing device and the side cover portion. , mud can be effectively prevented from entering the gap between the threshing device and the side cover.

In the present invention, it is preferable that the upper end portions of the inclined members adjacent to each other directly above the rear end portion of the crawler traveling device are connected in a chevron shape.

According to this configuration, since the adjacent inclined members are connected and reinforced, the inclined members are unlikely to be deformed even if the mud that is thrown up strongly hits the inclined members. When a member such as a frame is present between adjacent inclined members, the member is covered from above in a chevron shape, so that dust falling on the member can be avoided.

In the present invention, it is preferable that the inclined member is cantilevered laterally outward from the side wall of the threshing device.

According to this configuration, compared to the case where the inclined members are supported on both sides, the interval between the inclined members in the horizontal direction of the inclined members is widened, so that dust is more likely to fall. Also, when the side cover is removed, the inclined member remains on the side of the threshing device while being supported by the side wall of the threshing device, so maintenance work such as removing dust adhering to the inclined member is easy.

In the present invention, it is preferable that the inclined member is detachably supported.

According to this configuration, since the inclined member can be removed, it is easy to clean and repair the inclined member.

In the present invention, it is preferable that the lower cover portion is provided with a support member that engages with the side cover portion to support the side cover portion.

According to this configuration, since the side cover can be supported by a support structure with a simple structure utilizing the lower cover as the mounting member for mounting the support member to the mounting object, the side cover can be equipped at low cost.

It is a left view which shows the whole combine. It is a longitudinal side view which shows a threshing apparatus. It is a side view which shows a power transmission device and a lower cover part. It is a top view which shows a lower cover part. It is a perspective view which shows a front lower side cover part, a rear lower side cover part, and a lower cover part. FIG. 4 is a perspective view showing the front lower cover part, the intermediate lower cover part, and the rear lower cover part in a detached state; It is a sectional view of a front lower cover part. It is a side view of a rear lower cover part. FIG. 5 is a cross-sectional view taken along line IX-IX in FIG. 4; 5 is a cross-sectional view taken along line XX of FIG. 4; FIG. 9 is a cross-sectional view taken along line XI-XI of FIG. 8; FIG. FIG. 9 is a cross-sectional view taken along line XII-XII in FIG. 8; It is a sectional view showing a support structure of a jig. It is an explanatory view of the reattachment procedure of the swing sorting device.

An embodiment, which is an example of the present invention, will be described below with reference to the drawings.
In the following description, regarding the running machine body of the combine, the direction of arrow F shown in FIG. , the direction toward the front side of the page of FIG. 1 is defined as "left side of the machine body", and the direction toward the back side of the page is defined as "right side of the machine body".

[Regarding the entire combine harvester]
As shown in FIG. 1, the combine has a body frame 1 configured by connecting a plurality of steel materials such as square pipe materials, and has a pair of left and right crawler traveling devices 2 that support the body frame 1. It has a running machine. An operating section 4 having a cabin 3 is formed on the right side portion of the front portion of the traveling machine body. A reaping and conveying unit 5 is provided on the left side portion of the front portion of the traveling machine body. The harvesting and transporting unit 5 includes a harvesting unit 5A provided at the front of the harvesting and transporting unit 5 and a transporting unit 5B provided at the rear of the harvesting and transporting unit 5 . The reaping unit 5A reaps planted grain culms such as rice plants and wheat planted on a plurality of planting rows by a lifting device 6 while reaping the roots of the planted grain culms by a clipper type reaping device 7 . The conveying unit 5B conveys the harvested grain culms harvested by the harvesting unit 5A backward. A threshing device 8 and a grain tank 9 are supported side by side on the rear part of the body frame 1 . The threshing device 8 is positioned behind the conveying section 5B, and the grain tank 9 is positioned behind the driving section 4 . The threshing device 8 receives the harvested grain culms conveyed by the conveying unit 5B, performs a threshing process of threshing the tip side portion of the received harvested grain culms, and a sorting process of separating the threshed grains obtained by the threshing process from dust. conduct. A discharged straw shredding device 11 for shredding the threshed straw discharged from the threshing device 8 is provided behind the threshing device 8 . The threshed grain obtained by the threshing device 8 is supplied to the grain tank 9 by the grain lifting device 12 and stored in the grain tank 9 . Extending from the rear of the grain tank 9 is a grain discharging device 13 for removing threshed grain from the grain tank 9 .

[Regarding the configuration of the threshing device]
The threshing device 8, as shown in FIG. 2, includes a threshing section 8A formed in the upper part of the threshing device 8 and a sorting section 8B formed below the threshing section 8A.

The threshing section 8A comprises, as shown in FIG. 16. The handling cylinder 15 is rotationally driven around the center of rotation of the handling cylinder axis P extending in the longitudinal direction of the machine body. A separation drum 17 is rotatably provided behind the handling chamber 14 . The separation drum 17 is rotationally driven around a drum axis P2 extending laterally of the machine body. A threshing feed chain 18 is provided laterally outside the threshing chamber 14 .

As shown in FIG. 2, the sorting unit 8B includes a swing sorting device 19 provided below the handling chamber 14, a winnow 20 provided below the front portion of the swing sorting device 19, and a winnow 20 in front of the winnower 20. A first blower fan 21 provided and a second blower fan 22 provided behind the winnow 20 are provided. A No. 1 screw 23 is provided between the winnow 20 and the second blower fan 22 . A second screw 24 is provided behind the second blower fan 22 . A guide plate 42 extends from the rear portion of the rocking sorting device 19 toward the No. 1 screw 23 . The guide plate 42 is composed of a flexible sheet-like member, and guides the first processed material sorted by the swing sorting device 19 to flow down to the first screw 23 .

In the threshing device 8, the starting end portion of the threshing feed chain 18 receives the root side portion of the harvested grain culm conveyed by the conveying unit 5B, and the tip side portion of the harvested grain culm is inserted into the handling chamber 14, The stem side portion is pinched and conveyed toward the rear of the threshing device 8 by the threshing feed chain 18 , and the tip side portion is threshed by the threshing cylinder 15 . The threshed grains obtained by threshing fall into the sorting section 8B through the processed material leakage holes of the receiving net 16. - 特許庁The threshed waste straw is nipped and conveyed by the threshing feed chain 18 and discharged rearward from the threshing chamber 14 . The discharged threshed straw is subjected to a separation process by the separation drum 17, the threshed grain is taken out from the threshed discharged straw, and the taken out threshed grain falls to the sorting section 8B. The threshed grains dropped from the receiving net 16 and the threshing straw to the sorting unit 8B are received by the swing sorting device 19, and the received threshed grains are swing sorted by the swing sorting device 19, the winnow 20, and the first blower fan 21. Then, the grains are sorted into fine grains as the first grains, untreated grains as the second grains, and dust by air sorting using the sorting air from the second blower fan 22 . The refined grains flow into the No. 1 screw 23 and are conveyed to the grain raising device 12 by the No. 1 screw 23 . The unprocessed grains flow into the No. 2 screw 24 and are returned to the starting end of the oscillating sorter by the No. 2 screw 24 and a reducing device 25 connected to the No. 2 screw 24 on the laterally outer side of the machine body.

As shown in FIGS. 1 and 3, the power of an engine 26 as a power source provided in the front part of the traveling machine body is transmitted to the threshing section 8A and the sorting section 8B on the left lateral outer side of the machine body of the threshing device 8. A transmission device 27 and a lateral cover K covering the power transmission device 27 are provided. In this embodiment, the power transmission device 27 is provided on the left lateral outer side of the threshing device 8 , but it is not limited to this and may be provided on the right lateral outer side of the threshing device 8 . In the present embodiment, only the engine 26 is provided as a power source, but the invention is not limited to this, and an electric motor may also be provided.

The power transmission device 27 includes, as shown in FIG. The driving belt 29, the second endless rotating belt 30 wound around the output pulley 28 on the laterally inner side of the machine body with respect to the first endless rotating belt 29, and the first pulley 31 for driving the first screw 23 are interlocked and connected. the transmission pulley 32, the third endless rotary belt 33 wound around the transmission pulley 32, and the fourth endless rotary belt 35 wound around the sorting pulley 34 that drives the swing sorting device 19. I have.

The first endless rotary belt 29 is wound around the output pulley 28 and the first pulley 31 and transmits the power of the output pulley 28 to the first screw 23 . The second endless rotating belt 30 is wound around an output pulley 28 and a winnow pulley 36 that drives the winnow 20 , and transmits the power of the output pulley 28 to the winnow 20 . The third endless rotary belt 33 drives the transmission pulley 32, the second pulley 37 that drives the second screw 24, the input pulley 38a of the chain drive mechanism 38 that drives the threshing feed chain 18, and the separation drum 17. It is wound around the separation pulley 39 . The power transmitted from the output pulley 28 to the first pulley 31 is transmitted to the second screw 24 , the threshing feed chain 18 and the separation drum 17 by the third endless rotating belt 33 . The fourth endless rotating belt 35 is wound around a transmission pulley 41 and a sorting pulley 34 interlocked with a power take-off pulley 40 around which the third endless rotating belt 33 is wound. The power transmitted from the output pulley 28 to the power take-off pulley 40 is transmitted to the swing sorting device 19 by the transmission pulley 41 and the fourth endless rotary belt 35 .

As shown in FIGS. 1 and 4, the lateral cover K is provided on the left lateral outer side of the power transmission device 27, and covers the power transmission device 27 from the lateral outer side. a lower cover part 60 covering the gap between the lower end part 50 of the side cover part 50 and the lower end part 8f of the threshing device 8 between the lower end part 50 and the lower end part 8f of the threshing device 8 there is In this embodiment, as shown in FIGS. 4 and 5, the lower end portion 8f of the threshing device 8 is formed by a side wall frame provided under the side wall 45 of the threshing device 8 so as to extend in the longitudinal direction of the machine body. . The side wall frame is shared by the frame portion that forms the body frame 1 and extends forward and backward of the body.

As shown in FIG. 1, the side cover portion 50 includes an upper cover portion 50A forming the upper portion of the side cover portion 50 and a lower cover portion forming the lower portion of the side cover portion 50. 50B and. The upper cover portion 50A is composed of a front upper cover portion 51 forming a front portion of the upper cover portion 50A and a rear upper cover portion 52 forming a rear portion of the upper cover portion 50A. there is The lower side cover portion 50B includes a front lower side cover portion 53 forming a front portion of the lower side cover portion 50B and a rear lower side cover portion 54 forming a rear portion of the lower side cover portion 50B. , is composed of As shown in FIG. 5, the front end portion of the front lower side cover portion 53 is provided with a pulley cover portion 55 that extends from the front lower side cover portion 53 toward the threshing device side and covers the output pulley 28 from the front. . In the present embodiment, the side cover portion 50 is configured to be divisible into four cover portions, but the present invention is not limited to this. For example, one of the upper cover portion 50A and the lower cover portion 50B can be configured by a single side cover portion, and the other of the upper cover portion 50A and the lower cover portion 50B can be divided into two cover portions. may be configured to Alternatively, the entire side cover portion 50 may be configured as one side cover portion. Also, the side cover portion 50 may be configured to be divisible into two or five or more cover portions.

[Regarding the structure of the lower cover part]
As shown in FIGS. 3 and 4, the lower cover portion 60 includes a front lower cover portion 61 which constitutes a portion of the lower cover portion 60 located above the front end side portion of the crawler traveling device 2, and a lower cover portion. A middle lower cover portion 62 constituting a portion of the crawler traveling device 2 positioned above the middle portion of the crawler traveling device 2, and a portion of the lower cover portion 60 positioned above the rear end side portion of the crawler traveling device 2. A rear lower cover portion 63 is provided.

As shown in FIGS. 3, 4 and 5, the front lower cover portion 61 includes an inclined portion 61a which is inclined forwardly upward under the output pulley 28 and a threshing device extending rearward from the rear portion of the inclined portion 61a. 8 and a rear portion 61b extending along the front-rear direction. As shown in FIGS. 4, 5 and 6, only the rear portion 61b of the inclined portion 61a and the rear portion 61b is provided with a plurality of slit-shaped dust discharge holes 61c for allowing dust to fall. there is

As shown in FIGS. 6 and 7, the front lower cover portion 61 is configured to be attached to a support portion 64 provided at the lower end portion 8f of the threshing device 8 with a connecting bolt 65. As shown in FIG. The front lower cover part 61 is detachably supported by the threshing device 8 .

As shown in FIGS. 3 and 4, the front lower cover portion 61 covers the output pulley 28 from below with an inclined portion 61a having no dust discharge hole, and fills the gap between the threshing device 8 and the side cover portion 50. The gap between the lower end portion of the side cover portion 50 (the lower end portion of the front lower side cover portion 53) and the lower end portion 8f of the threshing device 8 while allowing the dust that has entered to drop from the dust discharge hole 60c. is designed to cover the

As shown in FIGS. 3, 4 and 5, the middle lower cover part 62 is formed in a plate-like shape extending along the front-rear direction of the threshing device 8 over a portion below the winnow pulley 36 and a portion below the first pulley 31. ing. As shown in FIGS. 4, 5 and 6, only the front portion of the middle and lower cover portion 62 located forward of the first pulley 31 and located below the intake port 20a of the winnow 20 is covered with dust. A plurality of slit-shaped through-holes 62a are opened to allow the fall of the winnow 20 and to allow the winnow 20 to take in air. As shown in FIGS. 3, 5 and 6, a cover portion 80 is formed at the rear end portion of the middle lower cover portion 62 to cover the No. 1 pulley 31 from the rear and lower side. The cover portion 80 includes a first cover portion 81 integrally formed with the middle and lower cover portion 62 , a second cover portion 82 extending forward and upward from the first cover portion 81 , and a front and upward portion extending from the second cover portion 82 . and a third cover portion 83 extending inward. The third cover portion 83 is configured by a plate member having elasticity.

As shown in FIGS. 3, 6 and 8, the middle lower cover part 62 is configured to be attached to a support part 66 provided at the lower end part 8f of the threshing device 8 by connecting bolts 67. As shown in FIG. The middle lower cover part 62 is detachably supported by the threshing device 8 .

As shown in Figs. While allowing dust that has entered the gap between the cover portion 50 to drop from the through hole 62a, the cover portion 80 covers the No. 1 pulley 31 from the rear and lower side, and the lower end portion of the side cover portion 50 The gap between the lower end portion of the front lower side cover portion 53 and the lower end portion 8f of the threshing device 8 is covered.

As shown in FIGS. 3, 4, and 5, the rear lower cover portion 63 is inclined in a side view of the fuselage and has a plurality of inclined surfaces arranged in the longitudinal direction of the fuselage with a space S in the longitudinal direction of the fuselage. A member 68 is provided. The width of the interval S between the adjacent inclined members 68 is set to a width that allows dust that has entered the gap between the threshing device 8 and the side cover portion 50 to fall off.

Arrows X and Z shown in FIG. 8 indicate directions in which mud is thrown up by the crawler belt 2a at the rear end of the crawler traveling device 2 during forward movement.
That is, in the crawler traveling device 2 during forward movement, the belt portion 2r of the crawler belt 2a that moves along the lower rear portion of the wheel 2R positioned at the rear end portion of the crawler traveling device 2 moves in the rear rising direction. , the mud thrown up by the belt portion 2r is pushed up in the upward rearward direction indicated by the arrow Z. Of the crawler belt 2a, the belt portion 2f that moves along the rear upper portion of the wheel 2R moves in the forward rising direction, and the mud thrown up by this belt portion 2f bounces in the forward rising direction indicated by the arrow X. Raised.

As shown in FIGS. 3 and 8, among the plurality of inclined members 68, the inclined member 68f located on the front side with respect to the rear end portion of the crawler traveling device 2 is the mud that is thrown forward and upward by the belt portion 2f. is inclined in a direction that intersects the mud throw-up direction (the direction indicated by the arrow X) by the belt portion 2f so as to accurately receive the . Of the plurality of inclined members 68, the inclined member 68 located on the rear side with respect to the rear end portion of the crawler traveling device 2 is configured so as to accurately receive the mud thrown up rearward by the belt portion 2r. It is inclined in a direction intersecting with the direction of splashing up mud by 2r (the direction indicated by arrow Z).

As shown in FIGS. 4, 8 and 9, the rear lower cover part 63 prevents dust that has entered the gap between the threshing device 8 and the side cover part 50 from dropping from the gap S between the inclined members 68. While permitting, the mud thrown up rearwardly upward by the crawler traveling device 2 is received by the inclined member 86r with a rearwardly downward inclination, and the mud thrown up frontwardly by the crawler traveling device 2 is removed by the inclined member 68f with a rearward upward inclination. The lower end of the front lower side cover portion 53, which is the lower end of the side cover portion 50, and the threshing device 8 The gap between the lower end portion 8f and the gap between the lower end portion of the rear lower side cover portion 54 which is the lower end portion of the side cover portion 50 and the lower end portion 8f of the threshing device 8 are covered. ing.

As shown in FIG. 8, the upper ends of adjacent inclined members 68 directly above the rear end of the crawler traveling device 2 are connected in a chevron shape. A frame member 70 passing laterally between the adjacent inclined members 68 is covered from above by the inclined members 68 connected in a chevron shape.

As shown in FIGS. 4, 5 and 6, a plurality of inclined members 68 are detachably supported by the side walls 45 of the threshing device 8 while extending laterally outwardly from the side walls 45 in a cantilevered manner.
Specifically, as shown in FIGS. 6 and 8, from the foremost inclined member 68, the upper portion of the inclined member 68 connected to each other in a chevron shape is rearward with respect to the inclined member 68 inclined backward and downward. in the first tilting member group comprising a plurality of tilting members 68 up to the tilting member 68 with a rearward downward tilt adjacent to the threshing device side of the first tilting member group; One retainer 71 is provided in the first ramp group to hold all the ramps 68 of the first ramp group. A hook portion 71 a is provided on the front portion of the holding portion 71 . A front portion of the holding portion 71 is detachably engaged with the lower end portion 8f of the threshing device 8 by a hook portion 71a. A rear portion of the holding portion 71 is detachably connected to a support portion 72 provided at the lower end portion 8f of the threshing device 8 by a connecting bolt. Among the inclined members 68 whose upper parts are connected to each other in a chevron shape, the rearwardly downwardly inclined inclined member 68 is located one inclined member 68 behind the rearwardly downwardly inclined inclined member 68 to the last inclined member. In a second ramp group comprising a plurality of ramps 68 up to 68, at the end of all ramps 68 of the second ramp group only on the threshing device side, as well as the holding part 71 of the first ramp group. A connected retainer 71 is provided. The holding part 71 of the second inclined member group is detachably connected to the lower end part 8f of the threshing device 8 by the hook part 71a and the connecting bolt, like the holding part 71 of the first inclined member group.

Even if the front lower side cover part 53 and the rear lower side cover part 54 are removed, all the inclined members 68 remain on the side of the threshing machine 8 while being cantilevered on the threshing machine 8 . Further, in the first inclined member group and the second inclined member group, all the inclined members 68 of the first inclined member group and the second inclined member group can be removed from the threshing device 8 by removing the holding portion 71 from the support portion 72 . can be removed.

As shown in FIG. 3, a guide member 73 is provided at a location higher than the inclined member 68. As shown in FIG. The guide member 73 is supported by the side walls 45 . The guide member 73 has a guide surface inclined rearwardly downward at its upper portion, and guides the dust that has entered the gap between the threshing device 8 and the side cover portion 50 so as to flow down rearwardly by the guide surface. . Dust entering the gap between the threshing device 8 and the side cover part 50 is more likely to be discharged rearward than the rear lower cover part 63, and dust is less likely to be clogged between the inclined members 68.例文帳に追加

As shown in FIGS. 5, 7 and 8, two front and rear support members 75 for detachably supporting two front and rear portions of the front lower side cover portion 53 and a rear Two front and rear supporting members 76 are provided for detachably supporting two front and rear portions of the lower side cover portion 54 .

The two support members 75 supporting the front lower side cover portion 53 are attached to and detached from a support portion 77 provided at the lower end portion 8f of the threshing device 8 by connecting bolts, as shown in FIGS. supported as possible. Locking portions 75 a are provided at two upper and lower positions of the two support members 75 . As shown in FIG. 11 , the support member 75 is attached to the upper portion of the front lower side cover portion 53 by engaging a hook portion 53a provided on the lower portion of the front lower side cover portion 53 with a lower engagement 75a. The front lower side cover portion 53 is supported by the upper engaging portion 75a being engaged with the lock member 53b provided in the upper portion.

The two support members 76 that support the rear lower side cover portion 54 are supported by the rear lower cover portion 63 as shown in FIGS. The rear lower cover part 63 is used as an attachment member for attaching the support member 76 to the threshing device 8 . Specifically, the front support member 76 of the two support members 76 is supported by the retainers 71 of the first ramp group as shown in FIGS. The latter of the two support members 76 is supported on the retainers 71 of the second ramp group as shown in FIGS. The two support members 76 and the holding portion 71 are connected by welding.

As shown in FIG. 12 , engaging portions 76 a that support the rear lower side cover portion 54 are provided at two upper and lower locations of the two support members 76 . As shown in FIG. 12, the two support members 76 are connected to hook portions 54a provided at the bottom of the rear lower side cover portion 54 with lower engaging portions 76a engaged therewith. The rear lower side cover portion 54 is supported by engaging the upper locking portion 76a with a lock member 54b provided on the upper portion of the cover portion 54. As shown in FIG.

As shown in FIG. 1, behind the threshing device 8, a fuel tank 90 for the engine is provided. As shown in FIG. 2, a tank cover 91 is detachably provided above the fuel tank 90 to cover the fuel tank 90 from above. Between the tank cover 91 and the fuel tank 90, a plate-like jig 92 used to attach the rocking sorting device 19 taken out from the sorting section 8B back to the sorting section 8B is supported on the back side of the tank cover 91. is housed in the space of As shown in FIG. 13, the tank cover 91 is detachably supported by a support frame 93 that engages with the hook portion 91a of the tank cover 91 and a member that supports a connecting member 98 provided on the tank cover 91. ing.

The jig 92 is detachably supported by the tank cover 91 based on the support structure shown in FIG. A rear end portion 92r of the jig 92 is engaged with a holding portion 91b formed on the tank cover 91, and a rear end portion of the jig 92 is detachably supported by the holding portion 91b. A front end portion of the jig 92 is detachably supported by a bolt 94 and a wing nut 95 on the front end side portion of the tank cover 91 .

The operation of attaching back the rocking sorting device 19 to the sorting section 8B using the jig 92 is performed based on the attaching back procedure shown in FIG.
When the tank cover 91 is removed from above the fuel tank 90 and the rocking sorting device 19 is inserted into the sorting section 8B from the rear opening 96 (see FIG. 2) of the threshing device 8, the rocking sorting device 19 is attached to the tank cover 91. Make sure you don't hit it. A jig 92 attached to the tank cover 91 removed from above the fuel tank 90 is removed from the tank cover 91 . The jig 92 removed from the tank cover 91 is inserted into the sorting section 8B from the rear opening 96 of the threshing device 8 and installed above the No. 2 screw 24 . A rear end portion 92r of the jig 92 is engaged with an end portion 97 of the sorting section bottom plate to prevent the jig 92 from shifting forward. When the jig 92 is no longer moved, the swing sorting device 19 is inserted through the opening 96, and the guide plate 42 is positioned so that the free end portion of the guide plate 42 is located forward of the base end portion. The free end portion is placed on the jig 92 . When the free end portion of the guide plate 42 is placed on the jig 92 , the swing sorting device 19 is moved forward, and the free end portion of the guide plate 42 is slid forward on the jig 92 . When the oscillating sorting device 19 reaches the assembly position and the guide plate 42 extends from the oscillating sorting device 19 toward the No. 1 screw 23 as shown in FIG. The side portion is lifted to secure a take-out space for the jig 92 below the rocking sorting device 19 , and the jig 92 is taken out of the threshing device 8 through the take-out space and the opening 96 . When the jig 92 is taken out, the lifting of the rocking sorting device 19 is released and the rocking sorting device 19 is placed in the assembled state shown in FIG.

[Another embodiment]
(1) In the above-described embodiment, an example in which the tilt member 68f with a rearward upward tilt and the tilt member 68r with a rearward downward tilt was provided was shown, but the present invention is not limited to this. Depending on the degree of splashing of mud and the position of the lower cover portion relative to the rear end of the crawler traveling device, the inclined member may be provided with only a rearwardly downward inclination or with a rearwardly upward inclination. Moreover, the inclination of the inclined member may be inclined at any angle.

(2) In the above-described embodiment, an example in which the rear lower cover portion 63 is divided into two inclined member groups has been shown. It is not limited to this. For example, it may be single or divided into three or more.

(3) In the above-described embodiment, the lower cover portion 60 is divided into the front lower cover portion 61, the middle lower cover portion 62, and the rear lower cover portion 63, but it is not limited to this. It may be single, divided into only two, or divided into four or more.

(4) In the above embodiment, an example in which the power transmission device 27 is provided on the left lateral side of the threshing device 8 is shown. good.

(5) In the above-described embodiment, an example in which the side cover portion 50 is divided into four cover portions is shown, but the present invention is not limited to this, and may be a single undivided cover portion. Also, it may be divided into three or less, or five or more.

(6) In the above-described embodiment, an example in which the lower cover portion 50B is divided into two cover portions is shown, but the present invention is not limited to this, and may be a single undivided cover portion. Also, it may be divided into three or more.

(7) In the above-described embodiment, an example in which the upper portions of adjacent inclined members are connected in a chevron shape was shown, but the connection may be omitted.

(8) In the above-described embodiment, an example in which the inclined member 68 is supported in a cantilevered manner has been shown, but the configuration is not limited to this, and a configuration in which the inclined member 68 is supported in a double-sided manner may be employed.

(9) In the above-described embodiment, an example in which the inclined member 68 is detachably supported was shown, but a configuration in which it is non-removably supported by one of the threshing device and the side cover portion may be employed.

INDUSTRIAL APPLICABILITY The present invention can be applied to a normal combine harvester as well as a self-threshing combine harvester.

1 body frame 2 crawler traveling device 5A reaping unit 26 power unit (engine)
27 power transmission device 45 side wall 53 side cover portion (front lower side cover portion)
54 side cover part (front lower side cover part)
60 lower cover part 63 lower cover part (rear lower cover part)
68 inclined member 68f front inclined member 68r rear inclined member 73 guide member 76 support member

Claims (9)

a crawler traveling device that supports the body frame;
a harvesting unit for harvesting planted grain culms in a field;
a threshing device supported by the body frame for threshing harvested grain culms;
a power transmission device provided laterally outside the body of the threshing device for transmitting power of a power source to the threshing device;
a side cover portion provided on the laterally outer side of the power transmission device to cover the power transmission device from the laterally outer side of the fuselage;
Between the lower end portion of the side cover portion and the lower end portion of the threshing device, a gap is provided along the longitudinal direction of the machine body to fill the gap between the lower end portion of the side cover portion and the lower end portion of the threshing device. and a lower cover portion for covering,
In the lower cover portion, a portion positioned above the rear end side portion of the crawler traveling device is provided in a state of being inclined when viewed from the side of the machine body and spaced apart in the longitudinal direction of the machine body, and the side portion A plurality of inclined members are provided to allow dust to fall downward from the gap between the cover portion and the threshing device and to receive the mud thrown up by the crawler traveling device ,
A combine harvester , wherein the plurality of inclined members are provided with a plurality of inclined members positioned forwardly with respect to the rear end portion of the crawler traveling device . a crawler traveling device that supports the body frame;
a harvesting unit for harvesting planted grain culms in a field;
a threshing device supported by the body frame for threshing harvested grain culms;
a power transmission device provided laterally outside the body of the threshing device for transmitting power of a power source to the threshing device;
a side cover portion provided on the laterally outer side of the power transmission device to cover the power transmission device from the laterally outer side of the fuselage;
Between the lower end portion of the side cover portion and the lower end portion of the threshing device, a gap is provided along the longitudinal direction of the machine body to fill the gap between the lower end portion of the side cover portion and the lower end portion of the threshing device. and a lower cover portion for covering,
In the lower cover portion, a portion positioned above the rear end side portion of the crawler traveling device is provided in a state of being inclined when viewed from the side of the machine body and spaced apart in the longitudinal direction of the machine body, and the side portion A plurality of inclined members are provided to allow dust to fall downward from the gap between the cover portion and the threshing device and to receive the mud thrown up by the crawler traveling device,
A combine harvester , wherein a guide member for guiding dust in a gap between the side cover portion and the threshing device rearwardly and downwardly is provided at a position higher than the inclined member. The combine according to claim 1 or 2 , wherein the inclined member is inclined along a direction intersecting a direction in which mud is thrown up by the crawler traveling device. An inclined member located on the front side of the plurality of inclined members is inclined in a rearwardly rising state, and an inclined member located on the rearward side among the plurality of inclined members is inclined in a rearwardly lowered state. 4. The combine according to any one of 1 to 3 . Among the plurality of inclined members, the inclined member located on the front side with respect to the rear end portion of the crawler traveling device is inclined in a rearward raised state, and among the plurality of inclined members, the rear end portion of the crawler traveling device is inclined. 5. The combine according to any one of claims 1 to 4 , wherein the inclined member located on the rear side with respect to the is inclined in a rearwardly lowered state. 6. The combine according to claim 5 , wherein the upper end portions of the inclined members adjacent to each other directly above the rear end portion of the crawler traveling device are connected in a chevron shape. 7. A combine according to any one of claims 1 to 6 , wherein said inclined member extends laterally outwardly from a side wall of said thresher in a cantilevered manner. The combine according to any one of claims 1 to 7 , wherein the inclined member is detachably supported. The combine according to any one of claims 1 to 8, wherein the lower cover portion is provided with a support member that engages with the side cover portion to support the side cover portion.

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