JP6472348B2 - Combine - Google Patents

Description

  The present invention relates to a combine provided with a threshing device that threshs the harvested cereal that has been cut by the reaping unit, and a grain tank that stores the grain supplied from the threshing device.

  Conventionally, for example, Patent Document 1 discloses a technique that enables the grain stored in the grain tank to be taken out. Patent Document 1 discloses a grain that is formed by forming a slope portion at the lower part of the Glen tank, providing a tank outlet at the lower end of the slope portion, and providing a feeding device that communicates with the tank outlet. Is discharged from the grain outlet of the grain guide tube through the grain guide tube by the compressed air supplied by the blower.

JP 2001-352832 A

  In the case of the conventional technology related to grain extraction, if the wind pressure is increased so that the grain can be quickly extracted from the grain tank, the grain easily hits the grain guide tube and damages relatively soft grains such as soybeans. It becomes easy to do. That is, if it is attempted to take out the grain in a state where it is difficult to damage, the wind pressure cannot be increased so much that it takes time to take out the grain.

  The present invention provides a combine that can be quickly taken out in a state in which grains such as soybeans are hardly damaged.

The combine according to the present invention is:
A threshing device for threshing the harvested cereals harvested by the harvesting unit;
A grain tank for storing the grain supplied from the threshing device,
The internal shape of the grain tank is configured in a shape that guides the stored grain toward the discharge port,
A bucket conveyor type conveying device that conveys the grain from the outlet to the outside of the machine body is erected in a state adjacent to the grain tank ,
A discharge port is provided in the front portion on the upper end side of the transport device, and a chute for discharging the grains discharged from the discharge port to the outside of the machine body is supported by the front portion,
The upper part of the transport device that supports the chute stands up with respect to the lower part and discharges upward from the grain tank, and falls to the rear side of the fuselage with respect to the lower part. It is configured to be switchable to a folding posture along the longitudinal direction of the aircraft,
The chute is in a retracted state in which the base end portion is pivoted in a plan view with respect to the upper portion when in the discharging posture, and in a use state in which the chute is located on the outer side of the airframe. It is supported by the front part in a state that it can swing in and out of the body and in a state that it can move up and down around a horizontal axis with respect to the upper part with the base end as the center of swinging,
When the upper portion is changed to the folded posture in the state in which the chute is in the retracted state, the chute swings around the horizontal axis so as to be seen along the upper surface of the upper portion in a side view. It is possible to fall down in a state of extending toward the front .

  According to this configuration, when the grain stored in the grain tank is taken out to the outlet, the grain is guided by the internal shape of the grain tank and flows down to the outlet, thus causing friction between the grains. It can be difficult. When the grain is taken out of the machine from the discharge port, the grain is conveyed by a bucket conveyor type conveying device, so that it is difficult to cause friction between the grains and friction between the grain and the bucket. Can be taken out from the grain tank in a state that is difficult to damage. In the bucket conveyor type transfer device, the transfer amount per unit time can be set by setting the capacity of the bucket, so even if the transfer amount per unit time is increased, it can be taken out without being easily damaged.

  Therefore, even when a grain such as soybean is harvested, it is possible not only to take out the grain from the grain tank in a state where it is difficult to damage, but also to take it out quickly. By being able to take out the grain quickly, the time for interrupting the work for taking out the grain can be shortened and the harvesting work can be efficiently performed.

  According to this structure, even when supplying grains to a supply destination such as a carrier bed of a transport vehicle located adjacent to the fuselage, it is easy to supply the supply destination appropriately with a chute.

  According to this configuration, by setting the chute to the use state, the chute is easily supplied to the supply destination by the chute, but by switching the chute to the retracted state, the chute is located on the inner side of the body. Easy to run the aircraft. In addition, it is easy to store the aircraft in a warehouse, loading platform or container, or to load it.

According to this configuration, the tip position of the chute is changed by moving the chute up and down, so that the supply location at the supply destination can be adjusted.
According to this configuration, since the upper part protrudes upward from the grain tank by setting the upper part to the discharging posture, even if the supply destination is high, such as the loading platform of the transport vehicle adjacent to the fuselage is high, the grain It can be supplied from a position higher than the grain tank and is easy to supply. By making the upper part in the folded posture, the upper part is positioned lower than in the discharging posture, so that it is easy to store the aircraft in a warehouse, loading platform or container, or to load it.
In the present invention, a driving part provided on the front side of the grain tank and a cabin that covers a boarding space of the driving part are provided, and the chute is stored when the upper part is in the discharging posture. In a state, when the vehicle is positioned above the cabin and the upper side portion is in the folded posture, it is preferable that the chute falls down so as to be lower than the upper end of the cabin.

In this invention, the chute, and gutter-shaped proximal chute swingably supported gutter-shaped distal end chute and is provided at the distal end of the proximal-side chute, the chute, the It is configured to be able to change the state between a shortened state in which the distal-side chute is overlapped on the proximal-side chute and folded into a cylindrical shape and an extended state in which the distal-side chute is extended with respect to the proximal-side chute In the shortened state, it is preferable that the shoot can discharge the grain from an opening formed by the tip end of the base end side chute and the base end of the tip end side chute .

According to this configuration, by switching the chute and shortened state extended state, the length of the chute changes, even if the distance between the vendor and airframe position adjacent the body is changed, the distance Regardless of changes, it is easy to supply properly to the supplier.

In the present invention, the transport device is erected on the rear side of the body of the discharge port, a bucket return side path is provided in a front portion inside the transport case of the transport device, and a rear portion inside the transport case The transport side path is provided, and the grain that has flowed down to the discharge port flows into the lower part of the bucket return side path, is pumped by the transport device, and is formed at the upper part of the bucket return side path. It is preferable to discharge from the outlet to the chute .

  In the present invention, an engine-side transmission mechanism that transmits power from the engine to the front portion of the grain tank, and a conveyance that is linked to the engine-side transmission mechanism and transmits the power from the engine-side transmission mechanism to the conveyance device. An apparatus-side transmission mechanism, and the transfer apparatus-side transmission mechanism is coupled to the rotation transmission shaft passing through the space below the grain tank and the front end side of the rotation transmission shaft to the output shaft of the engine-side transmission mechanism. And a second universal joint that interlocks and connects the rear end side of the rotation transmission shaft to the input shaft of the transport device.

  According to this structure, a transmission system can be equipped compactly by utilizing the space below the grain tank as a transmission space for transmitting power by means of a rotary transmission shaft.

It is a left view which shows the whole combine. It is a right view which shows the whole combine. It is a top view which shows the whole combine. It is a rear view which shows a combine. It is a front view which shows the front part of a threshing apparatus. It is a side view which shows the front part of a threshing apparatus. It is a front view which shows a transverse feed supply part. It is a VIII-VIII cross-sectional arrow view of FIG. It is a perspective view which shows a grain tank and a conveying apparatus. It is a perspective view which shows the chute | shoot of a decomposition | disassembly state, a taking-in / out operation mechanism, a raising / lowering operation mechanism, and an expansion-contraction operation mechanism. It is a perspective view which shows the chute | shoot of use condition. It is a side view which shows the upper part of the conveying apparatus of a discharge attitude | position. It is a side view which shows the upper part of the conveying apparatus of a folding attitude | position. It is a diagram which shows a transmission system.

  Hereinafter, an embodiment of a combine according to the present invention will be described with reference to the drawings. FIG. 1 is a left side view showing the entire combine. FIG. 2 is a right side view showing the entire combine. FIG. 3 is a plan view showing the entire combine. FIG. 4 is a rear view showing the combine. 1 to 4, F is defined as “front” of the traveling aircraft body, B is defined as “rear” of the traveling aircraft body, L is defined as “left” of the traveling aircraft body, and R is defined as “right” of the traveling aircraft body.

  As shown in FIGS. 1 to 4, the combine is provided with a self-propelled traveling machine body equipped with a pair of left and right crawler type traveling devices 2 at the lower part of the machine body frame 1. The driving part 3 is provided on the right end side of the front part of the traveling machine body. The driving unit 3 is provided with a cabin 4 that covers the boarding space. A driving unit having an engine 5 is provided below the driving unit 3. A threshing device 10 and a grain tank 6 are provided at the rear of the traveling machine body in a state of being arranged in the lateral direction of the traveling machine body.

  A feeder 7 is extended from the front portion of the threshing device 10 toward the front of the traveling machine body and capable of swinging up and down. The cutting part 20 is connected to the extended end of the feeder 7. By swinging the feeder 7 with the lifting / lowering cylinder 8, the cutting unit 20 can be lifted / lowered between the lowered working posture and the raised non-working posture.

In this combine, the harvesting operation for harvesting grains such as rice, wheat, soybeans, and buckwheat can be performed by running the traveling machine body with the cutting unit 20 in the lowered working posture.
That is, a plurality of planted culms located in front of the traveling machine body are introduced into the reaper part frame 21 and a cutting process is performed in which the stocker of the cultivated culm is cut by the clipper-type reaper 22. The harvested cereal culm is transported to the lateral end by the lateral feed auger 23, transported rearward and upward from the lateral end by the feeder 7, and supplied to the threshing device 10. The threshing device 10 is supplied over the entire length from the stock source to the tip of the harvested cereal meal.
The harvested cereal rice cake supplied to the threshing apparatus 10 is threshed by the rotating handling cylinder 11, and the grain obtained by the threshing process is selected as dust. The grain after being classified as dust is supplied to the grain tank 6 by the supply device 30 and stored.

  FIG. 5 is a front view showing the front part of the threshing apparatus 10. FIG. 6 is a side view showing the front part of the threshing apparatus 10. As shown in FIGS. 5 and 6, a guide bottom plate 15 is provided between the left and right lateral side walls 12 of the threshing device 10 across the lower portion of the inlet 13 of the threshing device 10 and the entrance of the handling chamber 14. The guide bottom plate 15 is in a state of being tilted rearward. A scrambling drum portion 16 having a scrambling spiral plate 16a is provided at the front end portion of the handling cylinder 11 so as not to be relatively rotatable. The harvested cereal meal supplied to the inlet 13 by the feeder conveyor 7a is raked backward along the guide bottom plate 15 by the take-in spiral plate 16a and supplied to the handling chamber 14.

  A cleaning port 17 is provided in the left lateral wall 12. The cleaning port 17 can be opened and closed by removing the lid 18. Of the guide bottom plate 15, straw scraps or the like may stay in a portion located between the feeder conveyor 7a and the spiral screw plate 16a. In this case, it can be easily seen through the cleaning port 17 and can be easily cleaned through the cleaning port 17.

The supply device 30 will be described.
As shown in FIGS. 4 and 7, the supply device 30 includes a cerealing device unit 31 and a transverse feed supply unit 35. The cerealing device unit 31 is provided between the threshing device 10 and the grain tank 6, and feeds the grain discharged from the sorting unit of the threshing device 10 to the lateral side portion at the top of the grain tank 6. . The transverse feed supply unit 35 extends from the upper end portion of the cerealing device unit 31 to the inside of the cereal tank 6 through the through hole in the lateral wall of the cereal tank 6, and the grains discharged from the cerealing device unit 31 are converted into grains. It is conveyed in the lateral width direction of the grain tank 6 and discharged into the grain tank 6 at the center in the tank lateral width direction in the grain tank.

  As shown in FIG. 7, the cerealing device unit 31 includes a cerealing case 32 and a bucket conveyor 33 provided inside the cerealing case 32 so as to be drivable, and is configured as a bucket conveyor type.

  As shown in FIG. 7, the lateral feed supply unit 35 includes a transport case 36 and a lateral feed screw 37 provided inside the transport case 36 so as to be capable of driving and rotating, and is configured in a screw conveyor type. The grain located at the end portion of the transverse feed screw 37 is discharged from the discharge port of the transport case 36 by the radiation by the rotary blade 37a. As shown in FIGS. 7 and 8, a cleaning port 38 is provided in a portion of the transport case 36 located inside the grain tank 6. The cleaning port 38 can be opened and closed by a removable cover 39.

  As shown in FIGS. 2, 3, and 4, a support frame 40 is provided at the rear part of the body frame 1, and the rear part of the grain tank 6 is rotatably supported by the support frame 40 via a pair of upper and lower connecting shafts 41. ing. The grain tank 6 can be swung between a closed state for storage and an open state for maintenance, with an axis X extending in the vertical direction of the machine body of the connecting shaft 41 as the center of rocking. When the grain tank 6 is in a closed state for storage, the grain tank 6 is positioned above the machine body frame 1 with the grain tank 6 in the front-rear direction. When the grain tank 6 is opened for maintenance, the front-rear direction of the grain tank 6 is sideways of the traveling aircraft body, and the front end side of the grain tank 6 is projected to the right lateral outside of the traveling aircraft body. . By making the grain tank 6 open, the transverse feed supply unit 35 comes out of the grain tank 6 and can be cleaned by the cleaning port 38.

  As shown in FIG. 9, a leg frame 42 is connected to the lower part of the grain tank 6. The leg frame 42 includes a plurality of vertical frames 42a extending in the vertical direction of the traveling machine body, and a connecting frame 42b that connects the vertical frames 42a. The leg frame 42 swings together with the grain tank 6, and when the grain tank 6 is in a closed state, the leg frame 42 rides on the body frame 1 and causes the body frame 1 to receive the load of the grain tank 6.

  As shown in FIGS. 2 and 9, a discharge port 50 is provided at the lower end of the grain tank 6. The internal shape of the grain tank 6 is configured to guide the flow of the stored grain toward the outlet 50.

  The internal shape of the grain tank 6 is specifically formed as shown in FIGS. Of the inner wall surface in the lower part of the grain tank 6, the inclined surface in a state in which each of the portion 51 on the aircraft inner side, the portion 52 on the aircraft front side, and the portion 53 on the aircraft rear side approaches the discharge port 50 toward the lower end side. And the discharge port 50 is formed at the lower end of the portions 51, 52, 53. Of the inner wall surface at the lower part of the grain tank 6, the portion 54 on the laterally outer side of the machine body is formed so as to be a vertical surface, and the discharge port 50 is located at the lower end of the portion 54. Various inner wall surface shapes such as forming only the front and rear inner wall surface portions or the left and right inner wall surface portions on the inclined surface are not limited to forming the three inner wall surface portions on the inclined surface.

  As shown in FIGS. 2, 3, 4, and 9, a conveying device 56 is erected outside the grain tank 6 in a state adjacent to the grain tank 6. The conveying device 56 is configured as a bucket conveyor type so that the grain is conveyed from the discharge port 50 to the outside of the machine body by the bucket conveyor 57.

  Even when the grain is soybean, the grain flows down through the grain tank 6 to the discharge port 50, and the grain that has flowed down to the discharge port 50 is conveyed outside the machine body by the bucket conveyor type conveying device 56. The grain of the grain tank 6 can be taken out in a state where it is difficult to damage. That is, even in the case of a grain such as soybean, when taking the grain into the discharge port, even when the grain is transported by the transporting device 56, the grains are difficult to rub against each other, and when the grain is transported by the transporting device 56, Friction between the bucket, which is a conveying means, and the grain is difficult to occur, and the grain is difficult to be scratched and soiled.

Specifically, the transport device 56 includes a transport case 58 that extends in the vertical direction of the traveling machine body and has a bucket return side path 57D and a transport side path 57U provided therein. A bucket conveyor 57 is provided so as to be capable of driving and rotating over the lower end side and the upper end side inside the transport case 58. An entrance case portion 58a (see FIGS. 2 and 9) is provided on the lower end side of the transfer case 58. The inlet case 58a communicates the conveyance start end of the bucket conveyor 57 and the discharge port 50, and the grains that have flowed down to the discharge port 50 are conveyed to the conveyance start end (the "bucket return side path 57D of the configuration of the invention"). Guide to the lower part) . As shown in FIG. 10, a discharge port 58 b is provided on the upper end side of the transfer case 58 (corresponding to “the upper part of the bucket return side path 57 </ b> D” of the configuration of the invention) . The grains lifted inside the transport case 58 by the bucket conveyor 57 are discharged to the outside of the transport case 58 through the discharge port 58b.

  As shown in FIGS. 2, 3, and 11, a chute 60 is connected to the discharge port 58 b of the transport device 56. The chute 60 is supported so as to be swingable between a retracted state indicated by a solid line in FIG. 3 and a use state indicated by a two-dot chain line in FIG.

  When the grain is taken out, the chute 60 is switched to a use state by a loading / unloading operation mechanism 70 which will be described later, so that the chute 60 is positioned on the outer side of the machine body and is supplied to a supply destination such as a carrier bed of a transport vehicle located adjacent to the machine body. Easy to supply grain. When the airframe is run or stored, the chute 60 is switched to the retracted state by the loading / unloading operation mechanism 70, so that the chute 60 is positioned on the inner side of the airframe, and the traveling airframe can be easily operated and stored.

  The chute 60 is supported so that it can be moved up and down with the base end portion as a swing center. When the grain is taken out, the tip position of the chute 60 is changed by adjusting the raising / lowering of the chute 60 by the raising / lowering operation mechanism 75 described later, and the supply location at the supply destination can be adjusted.

  The chute 60 is configured to be changeable between a folded shortened state and an extended extended state. When the grain is taken out, the length of the chute 60 can be changed by switching the chute 60 between the extended state and the shortened state by an expansion / contraction operation mechanism 80 described later, and the position and height of the supply destination such as the loading platform of the transport vehicle can be changed. Easy to supply regardless of changes.

Specifically, the chute 60 is configured as follows.
As shown in FIGS. 10 and 11, the chute 60 includes a proximal chute 60 a and a distal chute 60 b. A base portion of the distal end side chute 60b is supported by a distal end portion of the proximal end side chute 60a via a rotation support shaft 64 so as to be relatively rotatable. The base portion of the base end side chute 60 a is supported by the upper end portion of the transfer case 58 via the support case 61.

  A lateral end portion on the rear side of the support case 61 is rotatably supported by the transport case 58 via a connecting shaft 62. A loading / unloading operation mechanism 70 is provided across the support case 61 and the transport case 58. The loading / unloading operation mechanism 70 includes a loading / unloading operation member 71 fixed to the support case 61 and an electric motor 72 supported by the transfer case 58. The fan-shaped gear portion 73 provided on the loading / unloading operation member 71 and the output gear 72a of the electric motor 72 are engaged with each other.

By driving the electric motor 72 in the forward rotation direction and the reverse rotation direction, the chute 60 can be switched between the use state and the retracted state.
That is, by driving the electric motor 72, the loading / unloading operation member 71 is swung by the output gear 72a about the shaft core P3 extending in the vertical direction of the traveling machine body of the connecting shaft 62, and the support case 61 is pivoted. With P3 as the center of swinging, the swinging operation is performed over the forward mounting posture facing forward of the aircraft shown in FIG. 3 and the lateral mounting posture facing laterally outward of the aircraft shown in FIG.

  As shown in FIG. 10, an inlet 61 a is provided on the lateral side of the upper portion of the support case 61. The internal space of the support case 61 opens downward and toward the base of the base end side chute 60a. As shown in FIG. 11, by placing the support case 61 in the sideways mounting posture, the chute 60 extends outward from the location where the chute 60 is located on the front side of the machine body of the discharge port 58b. It will be in use. The chute 60 is located on the outer side in the lateral width direction of the traveling machine body when in use.

  As shown in FIG. 11, when the chute 60 is in use, the base end side of the base end side chute 60a communicates with the discharge port 58b via the lower space of the support case 61 and the inlet 61a. The discharged grain is received on the proximal end side of the proximal end chute 60a, and the received grain is guided to flow down by the proximal end chute 60a and the distal end chute 60b. When the chute 60 is operated in a shortened state, the distal-side chute 60b overlaps the proximal-side chute 60a to form a cylinder, and the grain is discharged from the distal end of the proximal-side chute 60a. When the chute 60 is operated in the extended state, the proximal chute 60a and the distal chute 60b are arranged in a straight line, and the grain is discharged from the distal end of the distal chute 60b.

  As shown in FIG. 3, by placing the support case 61 in a forward mounting posture, the chute 60 extends from the location located on the inner side of the machine body of the discharge port 58b toward the front of the traveling machine body. Stored. When the chute 60 is in the retracted state, the chute 60 is positioned on the laterally inner side of the traveling machine body than in the used state.

  A base portion of the base end chute 60a is supported by a lower portion of the support case 61 via a connecting shaft 63 so as to be relatively rotatable. An elevating operation mechanism 75 is provided across the proximal end chute 60 a and the support case 61. The lifting operation mechanism 75 includes a lifting operation member 76 fixed to the proximal end chute 60 a and an electric motor 77 supported by the support case 61. A fan-shaped gear portion 78 provided on the elevating operation member 76 and an output gear 77a of the electric motor 77 are engaged with each other.

By driving the electric motor 77 in the forward rotation direction and the reverse rotation direction, the chute 60 can be adjusted up and down, and the tip position of the chute 60 for discharging the grain can be changed and adjusted.
That is, by driving the electric motor 77, the lifting operation member 76 is rotated by the output gear 77a with the axis P4 extending in the horizontal direction of the connecting shaft 63 as the rotation center. The chute 60 is moved up and down by the lifting operation member 76 with the axis P4 (corresponding to the “horizontal axis” in the configuration of the present invention) positioned on the base end side as the swing center.

  A cover 79 extends from the support case 61 toward the base portion of the base end side chute 60a. The cover 79 prevents the grain supplied from the discharge port 58b to the proximal end chute 60a from splashing out of the proximal end chute 60a. The cover 79 is made of an elastic sheet. When the chute 60 is adjusted up and down, the cover 79 moves up and down along with the chute 60 with the base end side as the center of swing.

  The tip side chute 60b and the rotation support shaft 64 are connected so as not to be relatively rotatable. An expansion / contraction operation mechanism 80 is provided across the rotation support shaft 64 and the lifting operation member 76. The expansion / contraction operation mechanism 80 includes a support shaft operating member 81 supported on the end of the rotation support shaft 64 so as not to be relatively rotatable, and an extendable operation member 83 supported by the elevating operation member 76 via the connecting shaft 82 so as to be relatively rotatable. And an electric motor 84 supported by the raising / lowering operation member 76. The support shaft operating member 81 and the telescopic operation member 83 are interlocked and connected via a pair of operation cables 85. The gear portion 86 provided on the telescopic operation member 83 and the output gear 84a of the electric motor 84 are engaged with each other.

The chute 60 can be switched between the extended state and the shortened state by driving the electric motor 84 in the forward rotation direction and the reverse rotation direction.
That is, by driving the electric motor 84, the telescopic operation member 83 is rotated by the output gear 84a about the axis P1 extending in the horizontal direction of the connecting shaft 82 as a rotation center, and pushes and pulls the pair of operation cables 85. . The support shaft operating member 81 is rotated between the extended position and the shortened position by the operation cable 85 with the axis P2 of the rotation support shaft 64 as the center of rotation. When the support shaft operating member 81 is operated to the extended position, the rotation support shaft 64 is rotated by the support shaft operating member 81 so that the distal side chute 60b is extended to the proximal end chute 60a. As a result, the chute 60 is extended. When the chute 60 is in the extended state, as described above, the base end side chute 60a and the front end side chute 60b are arranged in a straight line, become a bowl-like shape that opens upward, and the grains that guide the flow down are arranged on the front end side chute 60b. Eject from the tip.

When the support shaft operating member 81 is operated to the shortened position, the rotating support shaft 64 is rotated by the support shaft operating member 81 so that the distal end side chute 60b overlaps with the proximal end side chute 60a. The chute 60 is shortened. When the chute 60 is in the shortened state, the distal chute 60b overlaps with the proximal chute 60a as described above, and a discharge port (a configuration of the invention) is formed by the distal end of the proximal chute 60a and the proximal end of the distal chute 60b. And the grain to flow down is discharged from the distal end of the proximal end chute 60a.

  When the grain is taken out from the grain tank 6, as shown in FIG. 11, the chute 60 is put into a use state, so that the chute 60 causes the grain discharged from the discharge port 58b to be the base end of the base end side chute 60a. When the chute 60 is shortened and received by the base end side chute 60a and the front end side chute 60b and discharged from the front end of the base end side chute 60a, the chute 60 is extended. Is discharged from the tip of the tip side chute 60b. That is, the grain that has flowed down to the discharge port 50 of the grain tank 6 is transported from the discharge port 50 to the outside of the machine body by the transport device 56, and the grain discharged from the transport device 56 is discharged by the chute 60 to the discharge port 58 b of the transport device 56. Rather than being able to flow down to a location located on the laterally outer side of the machine body, it can be discharged, and it is easy to supply the grain to a supply destination such as a carrier bed located on the laterally outer side of the traveling machine body. When the height of the supply destination such as the loading platform and the distance from the traveling machine body change, the chute 60 is adjusted up and down by the elevating operation mechanism 75, and the chute 60 is expanded and contracted to the expansion and contraction operation mechanism 80, thereby Regardless of changes in height and distance, it can be properly supplied to the supplier.

  When traveling and retracting the traveling vehicle body, the chute 60 is placed in the retracted state as shown by the solid line in FIG. And easy to store. When the chute 60 is in the retracted position, the chute 60 can be stably supported in the retracted position by supporting the tip end side of the chute 60 on the support 67 (see FIG. 2).

  The upper portion 56U of the transfer device 56 is configured to be switchable between a discharge posture standing with respect to the lower portion 56D as shown in FIG. 12, and a folding posture lying down with respect to the lower portion 56D as shown in FIG. Has been. The upper portion 56U protrudes upward from the grain tank 6 when in the discharge posture. When the grain is taken out, the grain can be lifted above the grain tank 6 and is easily supplied to the supply destination even when the position of the supply destination such as a carrier bed of the transporting vehicle adjacent to the traveling machine body is high. When transporting the traveling machine body, the traveling body can be easily loaded on the loading platform and the container by placing the upper portion 56U in the folded posture.

  Specifically, as shown in FIGS. 12 and 13, the upper part 58 </ b> U and the lower part 58 </ b> D of the transport case 58 are connected via a connecting shaft 59. The upper portion 58U can be swung in the front-rear direction with an axis Y extending in the lateral width direction of the traveling body of the connecting shaft 59 as a swing axis. As shown in FIG. 13, the upper portion 58U is tilted to the rear side of the traveling machine body to fall on the lower portion 58D and enter a retracted state. By placing the upper side portion 58U in the retracted state, the upper side portion 56U of the transport device 56 is in a folded posture, and is positioned below the cabin 4 as indicated by a two-dot chain line in FIGS. When the upper portion 56U is in the folded posture, the upper portion 56U can be held in the folded posture by attaching the detachable tension rod 66 to the distal end side of the upper portion 58U.

  When the upper portion 58U is laid down, the notch portion 58K into which the base portion of the falling upper portion 58U enters the upper end of the lower portion 58D is removed by removing the closing member 58c that is detachably attached to the upper end portion of the lower portion 58D. Can appear in the department. When the upper part 58U is laid down, the conveyor part located inside the upper part 58U of the bucket conveyor 57 receives guidance from the bending guide wheel G provided in the lower part 58D, and the lower part 58D. It bends toward the rear side of the fuselage with respect to the conveyor part located inside.

  The upper part 58U stands up with respect to the lower part 58D by swinging forward, and enters a use state. By making the upper side part 58U into a use state, the upper side part 56U of the conveying apparatus 56 will be in a discharge | emission attitude | position as shown with a continuous line in FIG. 1, 2, and protrudes upwards rather than the grain tank 6 and the cabin 4. FIG.

  As shown in FIG. 14, the transmission system that transmits the output of the engine 5 to the transport device 56 includes an engine-side transmission mechanism 90 that transmits the driving force of the output shaft 5 a of the engine 5 to the front portion of the grain tank 6, A transfer device side transmission mechanism 100 that is linked to the engine side transmission mechanism 90 and transmits power from the engine side transmission mechanism 90 to the transfer device 56 is provided.

  Specifically, the engine-side transmission mechanism 90 includes a relay transmission shaft 91 provided in a state of extending in the lateral width direction of the traveling machine body behind the engine 5 and a front and rear of the traveling machine body in front of the grain tank 6 in a plan view. An output shaft 92 provided in a state extending in the direction is provided. A belt transmission mechanism 93 is provided across the output shaft 5a of the engine 5 and the end of the relay transmission shaft 91 opposite to the grain tank side. A branch transmission shaft 94 extending in the front-rear direction of the traveling machine body is interlocked and connected to the intermediate portion of the relay transmission shaft 91 via a bevel gear mechanism 95. A belt transmission mechanism 96 is provided across the branch transmission shaft 94 and the output shaft 92. The driving force of the relay transmission shaft 91 is transmitted from the end of the relay transmission shaft 91 on the grain tank side to the hydraulic pump 97 via the belt transmission mechanism 98.

  The transfer device side transmission mechanism 100 includes a rotation transmission shaft 101 that passes below the grain tank 6. The rotation transmission shaft 101 is provided in a state extending in the front-rear direction of the traveling machine body. The front end side of the rotation transmission shaft 101 and the output shaft 92 are interlocked and connected by a first universal joint 102. The rear end side of the rotation transmission shaft 101 and the input shaft 56 a of the transport device 56 are interlocked and connected by a second universal joint 103.

[Another Example]
(1) In the above-described embodiment, an example is shown in which the discharge port 50 is provided on the lateral side of the grain tank 6 on the lateral side of the machine body, and the conveying device 56 is provided at a location located on the lateral side of the machine body with respect to the grain tank 6. However, the discharge port 50 may be provided in the front part or the rear part of the grain tank 6, and the transport device 56 may be provided in a place located on the front side or the rear side of the machine body relative to the grain tank 6. .

(2) In the above-described embodiment, an example in which the chute 60 is provided is shown, but the chute 60 may be omitted.

(3) In the above-described embodiment, an example in which the chute 60 is swung around the axis P3 to be switched between the use state and the retracted state is shown. You may comprise so that it may switch to the use state located in the body outer side, and the storage state located in the body inner side.

(4) In the above-described embodiment, an example in which the chute 60 is supported by the transport device 56 has been described. However, the chute 60 is not limited to the transport device 56 and is supported by a support member provided in the grain tank 6. It may be configured.

(5) In the above-described embodiment, an example in which the chute 60 is configured to be extendable / retractable has been described.

(6) In the above-described embodiment, an example in which the chute 60 is switched between the shortened state and the extended state by switching the tip side chute 60b between the folded state and the extended state has been described. The chute 60 may be switched between a shortened state and an extended state by supporting the base end side chute 60a so as to be slidable and extendable.

(7) In the above-described embodiment, the upper part 56U of the transport device 56 is configured to be switchable between the discharge posture and the folding posture, but may be configured to be unfoldable.

(8) In the above-described embodiment, the example in which the power is transmitted to the conveying device 56 by the rotation transmission shaft 101 passing below the grain tank 6 is shown, but not limited to this configuration, various transmission configurations are adopted. May be.

  The present invention can be applied to a combine equipped with wheels in place of a crawler travel device in addition to a combine equipped with a crawler travel device.

3 driving department
4 cabin 5 engine 6 grain tank 10 threshing device 20 reaping part 50 discharge port 56 conveying device 56a input shaft 56U upper part 56D lower part
57U transport side path
57D bucket return path
58 Transport case 58b Discharge port
58U upper side
58D lower side 60 chute
60a proximal end chute
60b tip side chute 90 engine side transmission mechanism 92 output shaft 100 transfer device side transmission mechanism 101 rotation transmission shaft 102 first universal joint 103 second universal joint
P4 horizontal axis core

Claims (5)

A threshing device for threshing the harvested cereals harvested by the harvesting unit;
A grain tank for storing the grain supplied from the threshing device,
The internal shape of the grain tank is configured in a shape that guides the stored grain toward the discharge port,
A bucket conveyor type conveying device that conveys the grain from the outlet to the outside of the machine body is erected in a state adjacent to the grain tank ,
A discharge port is provided in the front portion on the upper end side of the transport device, and a chute for discharging the grains discharged from the discharge port to the outside of the machine body is supported by the front portion,
The upper part of the transport device that supports the chute stands up with respect to the lower part and discharges upward from the grain tank, and falls to the rear side of the fuselage with respect to the lower part. It is configured to be switchable to a folding posture along the longitudinal direction of the aircraft,
The chute is in a retracted state in which the base end portion is pivoted in a plan view with respect to the upper portion when in the discharging posture, and in a use state in which the chute is located on the outer side of the airframe. It is supported by the front part in a state that it can swing in and out of the body and in a state that it can move up and down around a horizontal axis with respect to the upper part with the base end as the center of swinging,
When the upper portion is changed to the folded posture in the state in which the chute is in the retracted state, the chute swings around the horizontal axis so as to be seen along the upper surface of the upper portion in a side view. A combine that can be laid down to extend forward . A driving part provided on the front side of the grain tank, and a cabin covering a boarding space of the driving part are provided,
When the upper portion is in the discharging posture, the chute is positioned above the cabin in the retracted state, and when the upper portion is in the folded posture, the chute is more than the upper end of the cabin. The combine according to claim 1, wherein the combine is laid down so as to be lower . The chute is provided with a hook-like proximal chute and a hook-like distal chute supported swingably at the tip of the proximal chute,
The chute is in a shortened state in which the distal-side chute is overlapped on the proximal-side chute and folded into a cylindrical shape, and an extended state in which the distal-side chute is extended with respect to the proximal-side chute It is configured to be changeable ,
The combine according to claim 1 or 2 , wherein, in the shortened state, the shoot can discharge the grain from an opening formed by a tip end of the base end side chute and a base end of the tip end side chute . The transport device is erected on the rear side of the machine body of the discharge port,
A bucket return side path is provided in the front part inside the transport case of the transport device, and a transport side path is provided in the rear part inside the transport case;
The grains that have flowed down to the discharge port flow into the lower part of the bucket return side path, are transported by the transport device, and are discharged to the chute from the discharge port formed in the upper part of the bucket return side path. The combine according to any one of claims 1 to 3 . An engine-side transmission mechanism that transmits power from the engine to the front portion of the grain tank, and a transfer device-side transmission mechanism that is linked to the engine-side transmission mechanism and that transmits power from the engine-side transmission mechanism to the transfer device And comprising
The transfer device side transmission mechanism is
A rotary transmission shaft that passes through the space below the grain tank, a first universal joint that interlocks and connects a front end side of the rotary transmission shaft to an output shaft of the engine side transmission mechanism, and a rear end side of the rotary transmission shaft. The combine according to any one of claims 1 to 4 , further comprising: a second universal joint interlockingly connected to the input shaft of the transport device.

Images