JP4535446B2 - Room structure - Google Patents

Description

  The present invention relates to a handling room structure applied to a combine.

  The combine is disposed below the threshing device, the machine frame, the harvesting / conveying device connected to the front of the machine frame, the threshing device that performs the threshing process on the harvested culm, and the threshing device. A swing sorting device, and a feed chain device that conveys the culm to the rear of the machine body with the tip side of the culm inherited from the harvesting / conveying device inserted into the handling chamber of the threshing device ( For example, see Patent Document 1 below).

  The threshing device has a handling cylinder that is rotationally driven in the handling chamber, and the threshing process is performed by the handling cylinder acting on the cereals conveyed backward by the feed chain device. ing.

By the way, the handling chamber is formed by an inner cover member in the feed chain device that is rotatable about a rotation axis with respect to the machine frame, and a threshing machine frame provided in the machine frame. This facilitates access to the handling room.
However, in the conventional combine, the inconvenience that the to-be-degranulated grains including the grains spilled outward from the contact portion between the inner cover member and the threshing machine frame easily occurred.
Japanese Utility Model Publication No. 9-314

  The present invention has been made in view of the prior art, and includes an inner cover member in a feed chain device that is rotatable about a rotation axis with respect to the machine frame, and a threshing provided in the machine frame. An object of the present invention is to provide a simple chamber structure that can effectively prevent spilled grains threshed by a handling cylinder from spilling outward. To do.

  In order to solve the above problems, the present invention provides a handling chamber by bringing an inner cover member of a feed chain device that can rotate around a rotation axis with respect to a machine frame into contact with a front machine frame of a threshing machine frame. The threshing machine frame has a front machine frame that defines a front end portion of the handling room, and the front machine frame penetrates into the handling chamber from the front side of the vehicle. And a lower front end that defines a portion below the slit of the front end of the handling chamber, and the inner cover member is arranged around the rotation axis of the feed chain device. Depending on the rotational position, a chamber forming position that abuts the lower front end portion to close a side portion of the chamber and a chamber opening position that opens the side portion of the chamber can be taken. The lower front end is formed by the inner cover member. Providing a contact area in contact with the front end portion of the inner cover member when it is positioned in the chamber forming position, the configured threshing chamber structure so as to have an upper extension region which extends from the abutment region upward.

  Preferably, when the inner cover member is positioned at the chamber forming position, the boundary line between the front end portion of the inner cover member and the lower front end portion is inward from the outside in the vehicle width direction in plan view. The vehicle is inclined so as to be located at the rear of the vehicle as it goes to.

  Preferably, when the inner cover member is positioned at the chamber forming position, a boundary line between the front end portion of the inner cover member and the lower front end portion is inward from the outside in the vehicle width direction when viewed from the rear of the vehicle. It is inclined downwards.

In one aspect, the lower front end includes a receiving net support region that supports a front end of a receiving net disposed below the handling cylinder, and a central transition area that extends between the slit and the receiving net support region. And a lateral region extending outward in the vehicle width direction so as to approach the feed chain device from the receiving net support region, and a lateral transition region located between the slit and the lateral region.
In such an aspect, the side region includes the contact region and the upward extending region.

In the various aspects, the feed chain device includes an FC rail member that supports the inner cover member and is rotatable about the rotation axis, and the inner cover member is formed of the handling cylinder. A handling cylinder facing surface along an outer peripheral surface, and a side cover surface extending between the handling cylinder facing surface and the FC rail member may be provided.
When the inner cover member is positioned at the handling chamber forming position, the front end portion of the side cover surface may be configured to abut on the lower front end portion.

  According to the handling chamber structure according to the present invention, when the lower front end of the front machine frame in the threshing machine frame positions the inner cover member in the feed chain device at the handling chamber forming position, In addition to the abutment area that abuts the front end portion, it is configured to have an upward extending area extending upward from the contact area, so that the cereal crop that has fallen on the inner cover member during the threshing process is removed from the handling chamber. Spilling out can be effectively prevented by the upper extension region. Therefore, the grain harvesting performance can be improved.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
1 to 3 are a perspective view, a side view, and a front view, respectively, of a combine 1 to which an embodiment of the present invention is applied.

  As shown in FIGS. 1 to 3, the combine 1 is connected to the machine frame 2, a drive source 9 (see FIG. 19 below) supported by the machine frame 2, and the machine frame 2. A pair of left and right crawler type traveling devices 10, a transmission (not shown) that changes the rotational power from the drive source 9 and outputs it to the pair of crawler type traveling devices, and the book in front of the machine frame 2 The cutting / conveying device 30 supported by the machine frame 2 so as to be movable up and down, the feed chain device 20 for conveying the cereals harvested by the cutting / conveying device 30 to the rear on the left side of the machine frame 2, and A threshing device 40 disposed in the left part of the machine frame 2 so as to perform a threshing process on the cereals conveyed by the feed chain device 20, and under the threshing device 40 Is selected by the swing sorting device 50 (see FIGS. 15 and 16 below), the driver's seat 5 disposed in the right front portion of the machine frame 2, and the swing sorting device 50. A grain tank 6 for storing the grains, inheriting the grain tank 6 disposed behind the driver's seat 5 and the drained waste from the feed chain device 20, and transporting the waste to the rear And a waste transporting device 60 (see FIG. 23 and the like below).

The reaping / conveying device 30 includes a reaping portion 31 for reaping cereals and a transporting portion 36 for transporting the cereals harvested by the reaping portion 31 to the feed chain device 20.
The cutting part 31 includes a pulling mechanism 32 including a pulling case and a pulling tine, a weed plate 33 protruding forward from a lower part of the pulling case, and a cutting blade 34 disposed behind the pulling case. have.
The conveyance unit 36 includes an upper conveyance mechanism and a vertical conveyance mechanism, and is configured to inherit the harvested cereal stocks to the feed chain device 20.

4 and 5 show a partial perspective view and a partial side view of the combine 1, respectively.
FIG. 6 is a rear enlarged perspective view of the combine 1 shown in FIGS. 4 and 5.
The feed chain device 20 is rotatable about a rotation axis with respect to the machine frame 2.
In the present embodiment, the rotation axis is along a substantially vertical direction.

  Specifically, the feed chain device 20 includes an FC rail member 21 that is rotatable about the rotation axis with respect to the machine frame 2, and a drive sprocket that is operatively connected to the drive source 9. FC transmission mechanism 22, feed chain 23 wound around the FC transmission mechanism 22 and the FC rail member 21, and a culm pinching mechanism urged toward the feed chain 23 from above the FC rail member 21 24 and an inner cover member 25 supported on the inner surface of the FC rail member 21 in the vehicle width direction.

The rear end of the FC rail member 21 is connected to the machine frame 2 so as to be rotatable about the rotation axis.
FIG. 7 shows an enlarged perspective view of the vicinity of the rotation axis.
FIG. 8 is a rear perspective view of the FC rail member 21 and a front machine casing 410 described later.

  As shown in FIGS. 7 and 8, in the present embodiment, the FC rail member 21 includes a rail body 211 that defines a movement path of the feed chain 23, and a rear side from the rear end portion of the rail body 211 and A fulcrum member 215 extending inward in the vehicle width direction, and the fulcrum member 215 is rotatable with respect to the machine frame 2 via a pivot shaft 210 that defines the rotation axis. It is connected to.

By providing such a configuration, the rotation axis can be avoided inward in the vehicle width direction from the movement path of the feed chain 23 in a plan view, and therefore, cracks, dust, and the like are accumulated in the vicinity of the rotation axis. Can be effectively prevented.
Further, by avoiding the rotation axis from the moving path of the feed chain 23 inward in the vehicle width direction in plan view, the interference with the rotation locus of the feed chain device 20 can be avoided. Can be easily covered with a cover member 213 (see FIG. 9). Providing such a cover member 213 can more reliably prevent the accumulation of cracks, dust, and the like in the vicinity of the rotation axis.

Preferably, as shown in FIGS. 7 and 8, the fulcrum member 215 includes an upper surface 216 extending substantially horizontally from the inner surface of the rail body 211 to the rear in the vehicle width direction and the inner surface of the rail body 211. And a lower surface 217 (see FIG. 9) extending substantially parallel to the upper surface 216, and an inner surface 218 connecting the inner edges of the upper surface 216 and the lower surface 217 in the vehicle width direction, and the pivot shaft 210 may be configured to be supported by the upper surface 216 and the lower surface 217.
By providing such a configuration, the rail body 211 is supported rigidly with respect to the pivot shaft 210, and accordingly, the rotation operation of the FC rail member 21 relative to the machine frame 2 can be stably performed. it can.
In the present embodiment, as shown in FIG. 7, the fulcrum member 215 is attached to the mounting stay 201 a connected to the rear horizontal frame 201 and the mounting stay 202 a connected to the rear vertical frame 202. , And is supported rotatably via the pivot shaft 210.

The inner cover member 25 opens a handling chamber forming position for closing a side portion of the handling chamber and a side portion of the handling chamber according to a pivot position of the FC rail member 21 around the pivot axis. It is comprised so that it can take the handling chamber open position.
As shown in FIG. 8, in detail, the inner cover member 25 includes a handling cylinder facing surface 250 having a shape along the outer peripheral surface of the handling cylinder accommodated in the handling chamber, and a vehicle from the handling cylinder facing surface 250. A receiving net support surface 251 that extends inward and downward in the width direction and supports a part of the receiving net 49 disposed below the handling cylinder 45, the inner side surface of the FC rail member 21, and the handling cylinder facing surface 250. And a side cover surface 252 extending therebetween.

The threshing device 40 has a handling drum 45 (see FIG. 19 below) disposed in the handling chamber.
The handling cylinder 45 is supported by a handling cylinder drive shaft 46 (see FIG. 19 below) disposed in a longitudinal direction of the vehicle so as not to rotate relative to the driving source 9 while being operatively connected to the driving source 9.

Here, the chamber structure in the combine 1 will be described.
The handling chamber includes a threshing machine frame 41 supported by the machine frame 2, the inner cover member 25 of the feed chain device 20, and an upper cover member (not shown) connected to the threshing machine frame 41. And formed by.

FIG. 10 shows an upper perspective view in the vicinity of the threshing machine frame 41 in a state where the inner cover member 25 is positioned at the handling chamber forming position.
FIG. 11 is a rear perspective view of the threshing machine frame 41 and the inner cover member 25 with the FC rail member 21 removed.

As shown in FIG.10 and FIG.11, the said threshing machine frame 41 has the front machine frame 410 which demarcates the front-end part of a handling chamber.
The front machine casing 410 includes a cereal entrance slit 411 that allows entry of the cereal into the handling chamber from the front side of the vehicle, and a lower front end that defines a portion below the slit 411 among the front end of the handling chamber. 420.

FIGS. 12 to 14 respectively show a rear perspective view, a plan view, and a side view of the vicinity of the lower front end portion 420 in a state where the inner cover member 25 is positioned at the handling chamber forming position.
As shown in FIGS. 10 to 14, when the inner cover member 25 is positioned at the handling chamber forming position, the front end portion of the inner cover member 25 comes into contact with the lower front end portion 420, thereby A side portion is formed.

As shown in FIG. 14, the lower front end 420 has a contact area 420a that contacts the front end of the inner cover member 25 and an upper extension area 420b that extends upward from the contact area 420a. is doing.
That is, when the inner cover member 25 is positioned at the chamber forming position, the upper end edge of the lower contact portion 420 is higher than the upper end edge of the front end portion of the inner cover member 25. Yes.
In the present embodiment, the front end portions of the contact region 420a and the inner cover member 25 are both end surfaces extending substantially vertically, and are configured to be in surface contact with each other.

According to such a configuration, the to-be-shedded grains that fall on the side cover surface 252 of the inner cover member 25 out of the to-be-shedded grains detached from the grain by the threshing device 40 are spilled to the vehicle front side. Exiting can be effectively prevented by the upwardly extending region 420b.
In particular, when the transport path of the cereals by the feed chain device 20 is a rearwardly rising slope that is located upward as it goes rearward, the side cover surface 252 is also a rearwardly rising slope. Accordingly, the degreased grains falling on the side cover surface 252 roll to the front side of the vehicle, but in the present embodiment, the degreased grains rolling to the front side of the vehicle are separated from the handling chamber by the upper extension region 420b. It is possible to effectively prevent spilling forward and outward.

Preferably, as shown in FIG. 13, the vehicle has a contact boundary line 420L between the front end portion of the inner cover member 25 and the lower front end portion 420 as viewed from the outside in the vehicle width direction in a plan view. It can be inclined so as to be located rearward.
By providing such a configuration, when the inner cover member 25 is positioned at the handling chamber forming position while securing the rotation operation of the feed chain device 20 around the rotation axis, the inner cover member 25 It is possible to effectively prevent a gap from being generated between the front end portion and the lower contact portion 420.

Further, preferably, as shown in FIGS. 11 and 12, a contact boundary line 420L between the front end portion of the inner cover member 25 and the lower front end portion 420 is formed inwardly from the outside in the vehicle width direction in the rear view. It can be made to incline downward toward the direction.
By providing such a configuration, it is possible to reliably guide the grains to be removed, which roll on the side cover surface 252 forward of the vehicle and are blocked by the upper extending region 420b, into the handling chamber.

In the present embodiment, as shown in FIG. 12, the lower front end portion 420 includes a receiving net support region 421 that supports the front end portion of the receiving net 49, the slit 411, and the receiving net support region. A central transition region 422 that extends between 421, a side region 423 that extends outward in the vehicle width direction so as to approach the feed chain device 20 from the receiving net support region 421, the slit 411, and the side region 423. And a lateral transition region 424 located between the two.
The side region 423 is configured to form the contact region 420a and the upward extending region 420b.
Preferably, a portion of the side transition region 424 adjacent to the side region 423 can be a rearwardly rising inclined surface 425 as shown in FIG.稈 Transport can be performed smoothly.

Next, the swing sorting device 50 will be described.
15 and 16 show a side view and a perspective view of a main part of the swing sorting device 50, respectively.
The swing sorting device 50 is configured to sort the grains from the grains to be removed and the second reduced product, which will be described later, in the swing sorting chamber communicated with the handling chamber.
More specifically, the swing sorting device 50 swings forward and backward in the vehicle, thereby swinging and sorting mechanism 50A for selecting the specific gravity of grains from the grains to be removed and the second reduced product, and the swing sorting mechanism 50A. On the other hand, it has a wind sorting mechanism 50B that sends a sorting wind and wind-sorts the grains from the grains to be removed and the second reduced product.

  The swing sorting mechanism 50A is provided with a feed pan 51 disposed below the threshing device 40 so as to receive the cereal to be flown down from the threshing device 40 and the second reduced product conveyed from the second mash. A chaff sheave 52 that receives the cereal to be shed directly from the threshing device 40 and the cereal to be cerealed and the second reduced product sent from the feed pan 51, and selects the grain therefrom, and the rear of the chaff sheave 52 And a Strollac 53 disposed on the surface.

Reference numeral 55 in the drawing denotes a swing side plate that supports the feed pan 51, the chaff sheave 52, and the stroller 53.
Preferably, a protective frame (not shown) surrounding the Strollac 53 is provided, and the protective frame can be connected to the swing side plate 55.
By providing such a protective frame, it is possible to effectively prevent the Strollac 53 from being damaged during assembly or maintenance.
Needless to say, the protective frame can be integrally formed with the swing side plate 55.

The wind sorting mechanism 50B is configured to send to the swing sorting mechanism 50A a sorting wind that passes from the front obliquely downward to the rear obliquely upward, and the grain sorting by the swing sorting mechanism 50A is performed by the sorting wind. It is possible to promote sorting.
More specifically, the wind sorting mechanism 50B is arranged in front of and below the chaff sheave 52, above the stroll rack 53, and above the stroll rack 53, which is rotated by a tang fan drive shaft 570 along the body width direction. And a suction fan 57 that is rotationally driven by a suction fan drive shaft 590 along the body width direction.

The swing sorting device 50 is further disposed at a rearmost portion of the first culm 58 for collecting the first grain dropped from the chaff sheave 52, a rear portion of the chaff sheave 52 and the straw. And a second basket 59 for collecting the second reduced products dropped from the rack 53.
In the present embodiment, the swing sorting device 50 includes a grain sheave 54 between the chaff sheave 52 and the first rod 58. The grain sieve 54 functions as a second selection unit, and is formed of, for example, a net-like body.

The first grain aggregated in the first basket 58 is carried into the Glen tank 6 through the first conveyor 58a and the cereal conveyor 58b (see FIG. 19 below).
The grain tank 6 is provided with a grain discharging mechanism for carrying out stored grains to the outside.
As shown in FIGS. 1 to 3 and the following FIG. 19, the grain discharging mechanism includes a discharge conveyor 6 a provided at the bottom of the Glen tank 6, and a vertical conveyor that conveys the grains from the discharge conveyor 6 a upward. A discharge auger 6b and a horizontal discharge auger 6c having a base end communicated with the upper end of the vertical discharge auger 6b are provided, and the grain is formed via a discharge port provided at a distal end of the horizontal discharge auger 6c. It is comprised so that the grain in the tank 6 may be discharged | emitted outside.

  On the other hand, the second reduction product collected in the second basket 59 is transferred to the handling cylinder in the swing sorting chamber by a second reduction device including a second conveyor 59a and a second reduction conveyor 59b (see FIG. 19 below). It is returned to the feed pan 51 from a reducing port 500 (see FIGS. 15 and 16) provided on the side wall on the downstream side in the rotational direction.

Here, the structure of the feed pan 51 will be described.
17 and 18 are a plan view and a front perspective view of the feed pan 51, respectively. In the figure, the symbol F indicates the forward direction of the combine 1.
As shown in FIGS. 15 to 18, the feed pan 51 includes a feed pan main body 510 disposed under the handling cylinder 45 so as to cover substantially the entire width direction of the swing sorting chamber, and the feed pan main body. The main lead plate 520 and the sub lead plate 530 are provided on the upper surface of 510.

  The feed pan main body 510 has a plurality of wavy portions 511 formed so as to be positioned upward as it goes to the rear of the vehicle. The plurality of wavy portions 511 are arranged in the vehicle front-rear direction. It has become possible to let you.

The sub lead plate 530 is provided on the upper surface of the feed pan main body 510 so as to be close to the side wall provided with the reducing port 500.
The sub lead plate 530 has a sub lead inclined surface 531 that is inclined downward to the left with respect to the vehicle forward direction F.

The main lead plate 520 is provided on the upper surface of the feed pan main body 510 so as to be located upstream of the sub lead plate 530 in the rotation direction of the handling cylinder 45.
Similar to the sub lead plate 530, the main lead plate 520 has a main lead inclined surface 521 which is inclined downward to the left with respect to the vehicle forward direction F.
As shown in FIGS. 17 and 18, an upper end edge of the main lead inclined surface 521 is provided with a distribution surface 522 extending upward so as to intersect the main lead inclined surface 521.
In the present embodiment, the sorting surface 522 extends substantially vertically upward.

  As described above, in the present embodiment, the distribution surface 522 is provided at the upper end edge of the main lead inclined surface 521, whereby the main lead plate 520 disperses the grains to be removed and the second reduced product. Is surely obtained.

In other words, the main lead plate 520 has an installation position and a shape and size so that the grains to be removed flowing down from the handling cylinder 45 are dispersed to the left in the vehicle traveling direction by the main lead inclined surface 521.
On the other hand, the sub lead plate 530 has an installation position and a shape dimension so that the second reduced product returned from the reducing port 500 is dispersed right and left.

However, since the main lead inclined surface is a simple flat plate in the conventional main lead plate while the swing selecting mechanism is swinging back and forth, the grains to be removed fall on the main lead inclined surface. Or a part of the second reduced product returned from the return port passes over the upper edge of the main lead inclined surface and is on the main lead inclined surface. There was a risk of falling and falling to the left in the vehicle traveling direction from the main lead plate.
Therefore, it is difficult to obtain a desired dispersion effect even if the main lead plate and the sub lead plate are set to an optimum position and an optimum shape based on experience values.

On the other hand, in this embodiment, as described above, the distribution surface 522 is provided at the upper end edge of the main lead inclined surface 521.
Accordingly, a part of the to-be-degreased grains falling on the main lead inclined surface 521 falls to the right in the vehicle traveling direction due to the inertial force, or one of the second reduced products returned from the reducing port 500. It is possible to effectively prevent the portion from falling on the inclined surface of the main lead and falling to the left in the vehicle traveling direction from the main lead plate. Accordingly, the dispersion effect by the main lead plate 520 and the sub lead plate 530 can be prevented. Can be definitely obtained.

  Preferably, between at least a part of the lower end edge of the main lead inclined surface 521 and the upper surface of the feed pan main body 510, and at least a part of the lower end edge of the sub lead inclined surface 531 and the upper surface of the feed pan main body 510. A gap that allows movement of the degreased grain and / or the second reduced product in the vehicle width direction can be provided between the two.

In the present embodiment, as shown in FIG. 17, the sub lead plate 530 is fixed to the feed pan main body 510 at the front end portion, and the lower end edge of the sub lead inclined surface 531 is formed at a portion other than the front end portion. A gap is provided between the feed pan main body 510 and the upper surface.
On the other hand, the main lead plate 520 has a support member 525 whose front end is fixed to the upper surface of the feed pan main body 510, and the main lead inclined surface 521 is placed on the support member 525.

In the present embodiment, the sub lead plate 530 is fixed to the feed pan main body 510 so that the sub lead inclined surface 531 extends from the right front side to the left rear side of the feed pan main body 510 in a plan view. Yes.
The main lead plate 520 is disposed substantially parallel to the sub lead plate 530 in a plan view with a gap S between the main lead inclined surface 521 and the sub lead inclined surface 531 ( FIG. 17).

In addition to the above-described configuration, the combine 1 according to the present embodiment includes a waste cutting device 70 that cuts the waste conveyed to the rear of the machine body by the waste transport device 60.
In FIG. 19, the transmission schematic diagram of the said combine 1 is shown.

As shown in FIG. 19, the waste cutting device 70 is driven by power branched from a swing sorting pulley transmission mechanism 580 that drives the swing sorting device 50.
Specifically, the combine 1 includes a red fan drive shaft 570 operatively connected to the drive source 9, the swing selection pulley transmission mechanism 580 connected to the hot fan drive shaft 570, and the swing. A pulverization cutting pulley transmission mechanism 780 that branches power from the selection pulley transmission mechanism 580 and transmits it to the culling cutter 71 in the culling cutting device 70 is provided.

The tang fan drive shaft 570 is disposed along the vehicle width direction with both ends protruding outward from the swing sorting chamber.
The right protruding end of the drive shaft 570 for the red fan forms an input end for inputting power from the drive source 9, and the left protruding end outputs power to the swing selection pulley transmission mechanism 580. An output end portion is formed.

The swing sorting pulley transmission mechanism 580 is supported on the left side wall of the vehicle that defines the swing sorting chamber.
Specifically, as shown in FIGS. 4, 5, and 19, the swing selection pulley transmission mechanism 580 is a swing supported on the output end of the rotary fan drive shaft 570 so as not to be relatively rotatable. A sorting drive pulley 581, a first conveyor drive shaft 582 whose left end in the vehicle width direction protrudes outward from the side wall while being operatively connected to the first conveyor 58 a, and the first conveyor drive shaft The first conveyor drive pulley 583 supported at the left end portion of 582 in a relatively non-rotatable manner, and the second end in which the left end portion in the vehicle width direction protrudes outward from the side wall while being operatively connected to the second conveyor 59a. A conveyor drive shaft 584; a second conveyor drive pulley 585 supported on the left end of the second conveyor drive shaft 584 so as not to rotate relative to the second conveyor drive shaft 584; And a swing selection belt 586 wound around the second drive pulley 583 and the second conveyor drive pulley 585, and a vehicle width direction left end projecting outward from the side wall. A counter support shaft 587 provided, a counter pulley 588 supported by the protruding end portion of the counter support shaft in a state where the swing selection belt is wound, and an inner side in the vehicle width direction from the counter pulley 588 , The suction fan output pulley 589 supported by the counter support shaft 587 so as to rotate integrally with the counter pulley 588, and the left end of the vehicle width direction outwardly from the side wall in a state of being operatively connected to the suction fan 57. The suction fan drive shaft 590 that protrudes and the suction fan drive shaft 590 that is provided so as not to rotate relative to the suction fan drive shaft 590 A moving pulley 591, and a said suction fan output pulley 589 and the suction suction fan belt 592 wound around the fan drive pulley 591.

20 to 22 show an enlarged side view, a front perspective view, and a rear perspective view of the vicinity of the pulley cutting mechanism 780 for excretion cutting.
As shown in FIGS. 19 to 22, the waste cutting pulley transmission mechanism 780 is wound around a cutter power take-off shaft 781 disposed along the vehicle width direction and the swing sorting belt 586. A cutter power take-out pulley 782 supported by the power take-out shaft 781 in a state where the power take-out shaft 781 is in a state, and a cutter output pulley 783 supported by the power take-out shaft 781 to rotate integrally with the cutter power take-out pulley 782 A cutter shaft 784 disposed along the vehicle width direction in an operative connection with the waste cutter 71, a cutter drive pulley 785 provided on the cutter shaft 784 so as not to rotate relative to the cutter shaft 784, and the output pulley. 783 and a cutter belt 786 wound around the drive pulley 785.
In the present embodiment, the cutter power take-out pulley 782 is supported on the cutter power take-out shaft 781 so as not to rotate relative to the cutter power take-out pulley 781, and the cutter output pulley 783 has a vehicle width wider than the cutter power take-out pulley. The cutter power take-off shaft 781 is supported so as not to rotate relative to the outside in the direction.

Further, as shown in FIGS. 20 to 22, the pulverization cutting pulley transmission mechanism 780 includes a support pipe 790 into which the power take-off shaft 781 is inserted so as to be relatively rotatable, and the support pipe 790 on the machine side. First and second connecting members 791 and 792 connected to the members are provided.
The first and second connecting members 791 and 792 are configured to be connected to the machine-side member at different positions in the circumferential direction with reference to the axis of the power take-off shaft 781.

  Thus, in the present embodiment, the support pipe 790 that supports the cutter power take-out shaft 781 is supported at both ends by the first and second connecting members 791 and 792, and accordingly, the rocking shaft 790 is supported. The support pipe 790 can be stably supported against the belt tension of the dynamic sorting belt 586 and the cutter belt 786 and the driving reaction force of each pulley, and thereby the pulley cutting pulley transmission can be transmitted. The operation of the mechanism 780 can be stabilized.

In the present embodiment, one end of the first connecting member 791 is fixed to the outer peripheral surface of the support pipe 790 and the other end is connected to the rear vertical frame 202 of the machine via a mounting stay. .
The second connecting member 792 is L-shaped when viewed from the rear of the vehicle so that one end is fixed to the outer peripheral surface of the support pipe 790 and the other end is connected to the side wall.
Specifically, as shown in FIG. 22, the second connecting member 792 includes a connecting portion 792a that extends outward in the vehicle width direction with the base end connected to the side wall, and a free end of the connecting portion 792a. A support portion 792b extending substantially parallel to the side wall, the free end portion of which is fixed to the outer peripheral surface of the support pipe 790.

Preferably, a third connection member 793 that connects the outer end of the counter support shaft 587 in the vehicle width direction and the second connection member 792 may be provided.
By providing the third connecting member 793, the support pipe 790 can be supported more stably and the counter support shaft 587 can be supported and stabilized.
In the present embodiment, as shown in FIG. 22, the third connecting member 793 is a plate that connects the support portion 792b of the second connecting member and the outer end portion of the counter support shaft 587 in the vehicle width direction. It is made into a member.
Preferably, as shown in FIG. 20, the third connecting member 793 includes the cutter power take-out pulley 782 and the second conveyor located on the upstream side and the downstream side in the belt transmission direction with respect to the counter pulley 588, respectively. The counter support shaft 587 is supported so as to extend between the drive pulleys 585.
By providing such a configuration, the counter pulley 588 can be supported more stably in a state in which the counter pulley 588 resists the tension of the swing sorting belt 586.

Next, the waste transporting device 60 will be described.
23 to 25 show a plan view, a rear view, and a rear perspective view of the combine 1 including the waste transporting device 60, respectively.
The waste transporting device 60 is configured to transport the threshed wastes inherited from the feed chain device 20 to the rear.

  Specifically, as shown in FIGS. 23 to 25, the waste transporting device 60 includes a stock transport chain mechanism 61 that inherits a stock stock of waste from the feed chain device 20, and the stock transport chain mechanism. A clamping bar 62 that is positioned directly below 61 and is biased toward the stock transport chain mechanism 61 so as to be able to clamp the stock holder of the waste with the stock transport chain mechanism 61. ing.

  As shown in FIGS. 23 to 25, the stock transport chain mechanism 61 is arranged in the vehicle longitudinal direction so that the front end is close to the feed chain device 20 and the rear end is separated from the feed chain device 20. Displaced relative to the vehicle longitudinal line along.

Specifically, as shown in FIG. 23 to FIG. 25, the stock transport chain mechanism 61 includes an excretion stock drive member 610 provided at the front end and an excretion stock provided at the rear end. It has a driven member 611, and a waste chain source drive member 610 and a waste chain 612 wound around the waste stock source driven member 611.
In FIG. 24 and FIG. 25, the waste chain 612 shows the movement trajectory.
The waste stocker drive member 610 is operatively connected to the barrel drive shaft 46 via a pulley transmission mechanism 480 and a gear transmission mechanism 485, and when the barrel 45 is driven to rotate, the stockholder The transport chain mechanism 61 is also activated (see FIGS. 19, 23 and 25).

26 (a) and 26 (b) show a partially enlarged front perspective view and a partially enlarged rear perspective view of the waste chain 612, respectively.
As shown in FIG. 26, in the present embodiment, the waste chain 612 includes a front waste chain link 613 located on the vehicle front side, a rear waste chain link 614 located on the vehicle rear side, It includes a pivot pin 615 that connects the front waste chain link 613 and the rear waste chain link 614.

All of the rear evacuation chain links 614 are formed as protrusion links 616a having protrusions protruding outward.
In contrast, the front evacuation chain 613 includes a protrusion-attached link 616a having a protrusion protruding outward, and a protrusion-less link 616b not provided with the protrusion. The protrusion-less links 616b are alternately arranged.

By providing such a configuration, it is possible to effectively prevent the deterioration of the transport posture due to the delay in transporting the tip of the waste, and to reliably inherit the waste from the feed chain device 20 to the stock transport chain mechanism 61. Is possible.
That is, when the attitude of the waste handed down from the handling chamber to the waste transporting device 60 tends to be late, the transport speed of the stock transport chain mechanism 61 that transports the stock side of waste is transported. Although the speed of the auxiliary transport mechanism 63 that transports the waste tip side is increased to forcibly advance the waste tip side to adjust the position of the waste, as in the present embodiment. By forming the front side rejection chain link 613 by the projection-attached links 616a and the projection-less links 616b arranged alternately, a range in which the tip side of the elimination can move relative to the chain link 613 is obtained. Accordingly, it is possible to effectively prevent the deterioration of the transport posture due to the delay of the transport of the tip of the waste.
Further, since all the rear side rejection chain links 614 on the stock transport chain mechanism 61 side are the links 616a with protrusions, the waste chain from the feed chain device 20 to the stock transport chain mechanism 61 Inheritance is also performed reliably.

FIG. 27 shows a rear view of only the waste transporting device 60.
28 to 30 are a plan view, a rear view, and a rear perspective view of the combine 1 in the vicinity of the front end portion of the waste transporting device 60, respectively.
28 to 30, the gear transmission mechanism 485 is omitted.
Further, the movement chain 612 shows the movement trajectory.

As shown in FIGS. 27 to 30, the clamp 62 is disposed so that the front end portion does not interfere with the discharge path of the waste from the handling chamber in the vehicle rear view.
Specifically, the front end portion of the clamp 62 is configured to be positioned within the outline of the rear end of the inner cover member 25 in the rear view.
By providing such a configuration, it is possible to position the waste inherited from the feed chain device 20 to the stock transport chain mechanism 61 above the pinch 62, and accordingly, from the feed chain device 20 to the The stock transportation chain mechanism 61 can be reliably guided to the waste disposal.

That is, the attitude of the evacuation when coming out of the handling chamber to the rear of the vehicle is defined by the inner cover member 25. That is, the exit position of the waste from the handling chamber is defined by the rear end portion of the inner cover member 25.
Accordingly, by positioning the front end portion of the clamp 62 within the outline of the rear end portion of the inner cover member 25 in the rear view, the waste conveyed from the handling chamber to the rear of the vehicle is clamped. It is possible to prevent the inconvenience that the hook 62 is caught on the front end of the hook 62 or that the drainage hooks into the lower part of the pinching hook 62, so that the feed chain device 20 can be discharged to the stock transport chain mechanism 61. The soot can be transferred efficiently.

Preferably, the front end portion of the clip 62 can be brought close to the rear end surface 255 of the inner cover member 25.
By providing such a configuration, the waste can be transferred from the feed chain device 20 to the stock transport chain mechanism 61 more efficiently.

In the present embodiment, the pinch 62 includes a pinching part 621 positioned immediately below the stock transport chain mechanism 61, and a guide part 622 extending forward from the pinching part 621, the feed chain device 20 and a guide portion 622 along 20.
And the front-end | tip part of the said guide part 622 is located in the outline of the rear-end part of the said inner side cover member 25 in back view.
By providing such a configuration, the waste can be reliably guided from the feed chain device 20 to the stock transport chain mechanism 61.

Preferably, the distal end portion of the guide portion 622 is configured to be positioned downward as it goes toward the distal end side.
By providing such a configuration, even if the transport position of the waste by the feed chain device 20 and the transport position of the waste by the stock source transport chain mechanism 61 are vertically displaced, It can be guided to the original transport chain mechanism 61.

  As shown in FIGS. 23 to 30, in the present embodiment, in addition to the above-described configuration, the waste transporting device 60 cooperates with the stock transport chain mechanism 61 to return waste to the rear of the vehicle. An auxiliary transport mechanism 63 for transporting is provided.

  The auxiliary transport mechanism 63 is disposed substantially parallel to the stock transport chain mechanism 61 on the vehicle front side from the stock transport chain mechanism 61, and is driven in synchronization with the stock transport chain mechanism 61. It is configured to be able to transport the tip of the waste.

Specifically, the stock transport chain mechanism 61 has an output member 619 for outputting rotational power to the auxiliary transport mechanism 63 at a position near the rear end as shown in FIGS. Yes.
As shown in FIGS. 23 and 25, the auxiliary transport mechanism 63 is a drive member 630 for the culm head provided at the rear end, and rotates from the output member 619 of the stock transport chain mechanism 61. It is wound around the shoot head driving member 630 for inputting power, the shoot head driving member 631 provided at the front end, the shoot head driving member 630 and the shoot head driving member 631. And an exclusion belt 632.
In the present embodiment, a plurality of tines 633 are attached to the exclusion belt 632.
In the present embodiment, the tine 633 is made of rubber and is integrated with the evacuation belt 632.

As described above, the auxiliary transport mechanism 63 is integrally connected to the stock transport chain mechanism 61 in a state substantially parallel to the stock transport chain mechanism 61.
In the present embodiment, as shown in FIG. 28, the conveyance start point 63S of the auxiliary conveyance mechanism 63 (the foremost position of the reject belt 632) is the conveyance start point of the stock transport chain mechanism 61. An inclination angle of the stock transport chain mechanism 61 and the auxiliary transport mechanism 63 connected to each other with respect to the feed chain device 20 is defined so as to be positioned forward of 61S (the frontmost end position of the waste chain 612). ing.

By providing such a configuration, the auxiliary transport mechanism 63 is configured to be driven in synchronization with the stock transport chain mechanism 61, while the auxiliary transport mechanism 63 is on the tip side of the waste that has come out of the handling chamber. Can be quickly grasped.
Therefore, it is possible to effectively prevent delaying of the tip side transfer of the waste by the auxiliary transport mechanism 63, thereby improving the waste transport posture.

Preferably, as shown in FIG. 27, the upper and lower positions of the culm head driving member 630 and the output member 619 are substantially the same, and the transport start point of the auxiliary transport mechanism 63 is the stock transport chain mechanism 61. The auxiliary transport mechanism 63 and the stock transport chain mechanism 61 can be arranged so as to be positioned below the transport start point.
By providing such a configuration, even if the tip side of the waste that has come out of the handling chamber is drooping downward extremely, the tip side of the waste can be reliably transported by the auxiliary transport mechanism 63.

  Further, in the present embodiment, the waste transporting device 60 is arranged in addition to the above configuration in order to efficiently transport the waste tip by the auxiliary transport mechanism 63, as shown in FIGS. As shown at 28, etc., an auxiliary guide rod 64 is provided below the auxiliary conveyance mechanism 63 and arranged substantially parallel to the auxiliary conveyance mechanism 63.

As shown in FIGS. 29 and 30, the auxiliary guide rod 64 is located below the pin 62 and extends to a position where the front end portion intersects the pin 62 in a plan view. Yes.
By providing such a configuration, the stocker of waste is guided to the stock transport chain mechanism 61 by the clamp 62, and the tip of the waste is transferred to the auxiliary transport mechanism 63 by the auxiliary guide 64. Therefore, it is possible to improve the transporting posture of the waste by the waste transporting device 60.
Such a configuration is particularly effective when the tip side of the waste that has come out of the handling chamber hangs down extremely.

Preferably, the auxiliary guide rod 64 may have a curved shape with a front end bent downward.
In this way, by bending the front end portion of the auxiliary guide rod 64 downward, the tip side of the waste coming out of the handling chamber hits the auxiliary guide rod 64, or the tip side of the waste guide rod is the auxiliary guide. It is possible to effectively prevent the underside of the ridge 64.

In the present embodiment, as shown in FIGS. 28 and 30, the auxiliary guide rod 64 is substantially parallel to the auxiliary transport mechanism 63 and the front end portion is near the inner side surface of the feed chain device 20. It has been extended.
Preferably, the auxiliary guide rod 64 is provided between the auxiliary transport mechanism 63 and the stock transport chain mechanism 61 and close to the auxiliary transport mechanism 63 in plan view. By providing such a configuration, the auxiliary transport mechanism 63 can effectively perform a guide action on the tip side of the waste supported by the auxiliary guide rod 64.

FIG. 1 is a perspective view of a combine to which an embodiment of the present invention is applied. FIG. 2 is a left side view of the combine shown in FIG. FIG. 3 is a front view of the combine shown in FIGS. 1 and 2. FIG. 4 is a partial perspective view of the combine shown in FIGS. FIG. 5 is a side view of FIG. 6 is a partially enlarged perspective view of FIGS. 4 and 5. FIG. FIG. 7 is an enlarged perspective view of the vicinity of the rotation axis of the feed chain device in the combine shown in FIGS. FIG. 8 is a rear perspective view of the front machine frame in the feed chain device and the threshing machine frame. FIG. 9 is an enlarged perspective view of the vicinity of the rotation axis of the feed chain device. FIG. 10 is an upper perspective view of the vicinity of the threshing machine frame in a state where an inner cover member in the feed chain device is positioned at a handling chamber forming position. FIG. 11 is a rear perspective view showing only the threshing machine frame and the inner cover member. FIG. 12 is a rear perspective view of the inner cover member and the front machine casing. FIG. 13 is a plan view of FIG. FIG. 14 is a side perspective view of FIGS. 12 and 13. FIG. 15 is a side view showing a main part of the swing sorting device in the combine. FIG. 16 is a perspective view of FIG. FIG. 17 is a plan view of a feed pan in the swing sorting device. 18 is a front perspective view of FIG. FIG. 19 is a schematic diagram of transmission in the combine. FIG. 20 is an enlarged side view in the vicinity of the pulley transmission mechanism for excretion cutting in the combine. FIG. 21 is a front perspective view of FIG. 22 is a rear perspective view of FIGS. 20 and 21. FIG. FIG. 23 is a plan view of the combine and shows a waste transporting device in the combine. FIG. 24 is a rear view of FIG. 25 is a rear perspective view of FIGS. 23 and 24. FIG. FIGS. 26A and 26B are respectively a partially enlarged front perspective view and a partially enlarged rear perspective view of a waste chain in the waste transporting device. FIG. 27 is a rear view of the waste transporting device. FIG. 28 is a plan view of the combine in the vicinity of the front end portion of the waste transporting device. FIG. 29 is a rear view of FIG. 30 is a rear perspective view of FIGS. 28 and 29. FIG.

Explanation of symbols

1 Combine 2 Machine frame 20 Feed chain device 21 FC rail member 210 Pivoting shaft (rotating axis)
25 Inner cover member 250 Handle cylinder facing surface 252 Side cover surface 41 Threshing machine frame 410 Front machine frame 411 Grain inlet slit 420 Lower front end surface 420a Abutting region 420b Upper extending region 420L Front end surface of inner cover member Contact boundary line 421 with lower front end face Receiving net support area 422 Central transition area 423 Side area 424 Side transition area

Claims (5)

A handling chamber structure in which a handling chamber is formed by abutting an inner cover member in a feed chain device that is rotatable about a rotation axis with respect to the machine frame on a front machine frame of the threshing machine frame,
The threshing machine frame has a front machine frame that defines the front end of the handling room,
The front machine frame includes a cereal entrance slit that allows entry of the cereal into the handling chamber from the front side of the vehicle, and a lower front end that defines a portion below the slit of the front end of the handling chamber. Including
The inner cover member is in contact with the lower front end portion according to a rotation position around the rotation axis of the feed chain device, and a handling chamber forming position that closes a side portion of the handling chamber, It is configured to be able to take a handling room opening position that opens the side part of the handling room,
The lower front end includes a contact area that contacts the front end of the inner cover member when the inner cover member is positioned at a handling chamber forming position, and an upper extending area that extends upward from the contact area. A handling room structure characterized by having.   When the inner cover member is positioned at the handling chamber forming position, the boundary line between the front end portion of the inner cover member and the lower front end portion is in the vehicle width direction from the outside toward the inside in the plan view. The handling chamber structure according to claim 1, wherein the handling chamber structure is inclined so as to be positioned at the rear of the vehicle.   When the inner cover member is positioned at the handling chamber forming position, the boundary line between the front end portion of the inner cover member and the lower front end portion is directed from the outside in the vehicle width direction to the inside in the vehicle rear view. The handling chamber structure according to claim 1, wherein the handling chamber structure is inclined downward. The lower front end includes a receiving net support region that supports a front end portion of a receiving net disposed below the handling cylinder, a center transition area that extends between the slit and the receiving net support region, and the receiving net. A lateral region extending outward in the vehicle width direction so as to approach the feed chain device from the support region, and a lateral transition region located between the slit and the lateral region,
The chamber structure according to any one of claims 1 to 3, wherein the side region includes the contact region and the upward extending region. The feed chain device includes an FC rail member that supports the inner cover member and is rotatable about the rotation axis.
The inner cover member has a handling cylinder facing surface along an outer peripheral surface of the handling cylinder, and a side cover surface extending between the handling cylinder facing surface and the FC rail member,
5. The structure according to claim 1, wherein a front end portion of the side cover surface is in contact with the lower front end portion when the inner cover member is positioned at a handling chamber forming position. The handling room structure described in any one.