JP2007222032A - Receiving and conveying device of combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technique for improving the disposition and the like of a receiving and conveying device in a combine harvester to stabilize a grain straw supply posture to a threshing portion and prevent troubles such as ear breakage, straw dusts, and imperfect threshing. <P>SOLUTION: The receiving and conveying device 18 of the combine harvester 200 for reaping grain straws with a reaping portion 3 disposed in the front of a machine frame and then receiving the reaped grain straws in a feed chain 9 disposed behind the longitudinal conveyer 8 of the reaping portion 3 is characterized by extending and disposing the rear end of the receiving and conveying device 18 to a position overlapping the front portion of a threshing cylinder 19 on the side view. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a technique for a combine transfer device.

In the combine, a transfer device is installed between the mowing unit and the feed chain to ensure that the harvested cereals are inherited from the mowing unit to the feed chain so that the supply posture of the cereals to the threshing unit can be adjusted or spilled. A technique for preventing the above and stabilizing the transportation of the cereals is often used and is publicly known. (See Patent Document 1)
JP 2002-233230 A

However, in the conventional transfer and transfer device, the supply posture is adjusted while the grain candy is sandwiched by the transfer and transfer device, but it is transferred to the feed chain, and the tip side is forced obliquely downward by the presser plate. The supply posture may be disturbed when being guided by the handle cylinder toward the head.
Moreover, when the amount of cereals increases, it is difficult to turn the tip completely diagonally downward only by the pressing action of the heel presser plate, and the cereals are conveyed with the tip pointed in a substantially horizontal direction, and the inlet foil case part Or the tip of the barrel and the tip may be taken into the threshing portion later than the stock. And these faults are the cause of the cutting of the ears and the generation of sawdust.
At the threshing section entrance, there is no feed mechanism on the tip side from the feed chain, so there is a large resistance on the lower surface side of the cereal squeezed with the tip side facing diagonally downward, which may cause a conveyance delay. This is the cause of the remaining.
Therefore, in the present invention, in view of the current situation as described above, the arrangement and the like of the succession transfer device are improved, the supply posture of the cereals to the threshing unit is stabilized, and problems such as cutting of ears, swarf, and unhandled items are improved. The issue is to propose technology.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, according to the present invention, the harvesting unit disposed at the front part of the machine body harvests the cereal and is disposed at the rear of the transportation unit of the harvesting unit, and is a combine transfer and transporting device that transfers the harvested cereal to the feed chain. Thus, the rear end of the transfer device is extended to a position overlapping the front portion of the handling cylinder in a side view.

  In the present invention, the transfer surface of the transfer device is disposed at a position lower than the transfer surface of the feed chain located on the side thereof, and the transfer device is It is characterized in that it is arranged inside the fuselage rather than the feed chain.

  As effects of the present invention, the following effects can be obtained.

According to claim 1, the posture of the cereal is constant until the tooth-handling acts.
Moreover, the grain tip side can be forcibly fed to the inside of the handling room, and unhandled items due to the delay in the conveyance of the tip part can be prevented.

According to the second aspect of the present invention, since the cereal is always supplied to the handling chamber with the tip pointed obliquely downward, it does not hit the foil case or the handling cylinder and can be smoothly conveyed.
And generation | occurrence | production of a piece of spear and a sawdust can be suppressed.

Next, embodiments of the invention will be described.
Below, the whole structure of the combine 200 which concerns on this invention is demonstrated using FIG. 1 thru | or FIG.
As shown in FIG. 1 or FIG. 3, the combine 200 is configured such that a body frame 2 is placed on a crawler type traveling device 1, and a hydraulic cylinder is interposed between the body frame 2 and a cutting frame 12 disposed in front of the body frame 2. The mowing unit 3 is disposed so as to be movable up and down. The cutting part 3 projects the cedar by projecting the weed plate 4 at the front end, raises the case 5 at the rear part, and raises the case 5 to cause the cereal by rotating the tine 6 protruding from the case 5. The stock is cut with a cutting blade 7 disposed at the rear of the weed plate 4.

  The harvested cereals are conveyed to the rear by the upper conveying device, the lower conveying device, and the vertical conveying device 8, and the stocker side is inherited by the inherited conveying device 18 from the upper end of the vertical conveying device 8. Thereafter, the cereal is inherited from the inheriting and conveying device 18 to the feed chain 9 and conveyed into the threshing device including the threshing unit 20 and the sorting unit 21. A waste transport chain 10 is disposed at the rear end of the feed chain 9, and a waste processing unit 11 including a waste cutter device, a diffusion conveyor, and the like is formed below the rear of the waste transport chain 10. After the straw is cut into pieces, it is released uniformly into the field while being diffused or released without being cut.

  A grain tank 13 for storing the selected grain is disposed on the side of the threshing section 20, and a driver's cab 14 that covers the control section 30 is disposed at the front of the grain tank 13. In other words, the cab 14 is disposed on the right front of the aircraft in the traveling direction. On the other hand, a vertical auger 15a of the discharge auger 15 is erected at the rear part of the Glen tank 13, the Glen tank 13 can be turned to the side around the vertical auger 15a, and the Glen tank 13 is turned to the side. As a result, the maintenance of the drive system and the hydraulic system arranged inside the machine can be performed.

  A discharge conveyor 16 is disposed in the front-rear direction at the bottom of the Glen tank 13, and the rear portion of the discharge conveyor 16 communicates with the lower portion of the vertical auger 15a and from the rear portion of the discharge conveyor 16 to the discharge auger 15. Power is transmitted so that the grains in the grain tank 13 can be discharged from the tip of the discharge auger 15 to a truck or the like. Further, a sorting unit 21 is disposed below the threshing unit 20, and the grain is sorted from the grains and sawdust flowing down from the threshing unit 20, and the refined grains are transported to the Glen tank 13 or sawdust. Etc. are discharged outside the machine.

Further, as shown in FIG. 2 or FIG. 3, an engine 80 serving as a power source for driving the combine 200 and driving each part is disposed below the cab 14 in front of the Glen tank 13. A counter case 88 is disposed on the side of the engine 80 so that power is transmitted to the respective working elements such as the mowing unit 3 and the threshing unit 20 through the counter case 88 and the like.
The above is the description of the overall configuration of the combine 200 according to the present invention.

  Next, the configuration of the power transmission mechanism to the working element will be described with reference to FIG. 4 or FIG.

As shown in FIG. 4, from the counter case 88, shafts of a cylinder input shaft 144, a tuning input shaft 146, a cutting transmission shaft 160, a constant speed shaft 149, and a feed chain output shaft 164 protrude, and an input pulley 131, The vehicle speed tuning pulley 132, the threshing pulley 133, the cutting pulley 134, and the sorting pulley 135 are configured to be pivotally supported.
Further, a handle cylinder input shaft 144 is pivotally supported on the counter case 88. The handle cylinder input shaft 144 extends in the front-rear direction, and a threshing pulley is provided on the front side of the counter case 88 on the front side of the handle cylinder input shaft 144. 133, an input pulley 131 is provided on the rear side of the handle cylinder input shaft 144 outside the rear surface of the counter case 88, and a constant rotational power of the engine 80 is input to the handle cylinder input shaft 144 to rotate at a constant speed. ing.
A work output pulley 102 is pivotally supported on the output shaft 80 b on the rear side of the engine 80, and the input pulley 131 and the work output pulley 102 on the rear side of the counter case 88 are connected to a V-belt 104 via a tension clutch 136. Are connected so that the driving force of the engine 80 is transmitted to the counter case 88.
Further, a vehicle speed tuning pulley 132 is pivotally supported on the tuning input shaft 146 on the right side of the counter case 88, and the V belt 137 is tensioned between the cutting drive pulley 129 and the vehicle speed tuning pulley 132 via the idle pulley 105, thereby The vehicle speed tuning power is also input from the case 100 to the counter case 88.

  Further, a feed chain output shaft 164 is pivotally supported on the left side surface of the counter case 88, and the drive sprocket 9a of the feed chain 9 is pivotally supported on an end portion of the feed chain output shaft 164. The feed chain 9 is driven to rotate as the sprocket 9a rotates.

  Further, a cutting transmission shaft 160 is pivotally supported on the lower front side on the left side of the counter case 88, and a cutting pulley 134 is pivotally supported on the middle portion of the cutting transmission shaft 160 protruding to the left side of the counter case 88. A reduction gear 27 composed of a gear or the like is disposed at the end of the cutting transmission shaft 160, and the drive sprocket 17a of the transfer conveying device 18 is rotationally driven via the reduction gear 27, and the transfer transfer chain 17 is moved from the drive sprocket 17a. It is configured to rotate.

  Further, a V-belt 145 is wound between the cutting pulley 134 and the cutting input pulley 140, and a belt tension type cutting clutch 22 is interposed between the cutting pulley 134 and the cutting input pulley 140 to cut off the power. The cutting input shaft 139 and the cutting drive shaft 171 are connected by a gear train 162 and a driving force is transmitted from the cutting pulley 134 to the cutting drive shaft 171 to drive each portion of the cutting unit 3. It is configured.

Further, a V-belt 172 is wound between the drive input pulley 147 of the handling cylinder 19 and the threshing pulley 133 on the front side of the counter case 88, and a belt tension type threshing clutch is provided between the drive input pulley 147 and the threshing pulley 133. 23, the power can be connected and disconnected, and the driving force can be transmitted to the handling cylinder 19.
Further, the left end of the constant speed shaft 149 protrudes from the lower left side of the counter case 88 on the left side of the counter case 88, and a sorting pulley 135 is pivotally supported at the left end of the constant speed shaft 149. A driving force is transmitted from the sorting pulley 135 to the tangling and swinging sorting mechanism that is not to be driven to drive each part of the sorting device.

  Further, a discharge drive pulley 141 is provided on the front side of the Glen tank 13, and a V belt 143 is wound and connected between the discharge drive pulley 141 and the work output pulley 102 via a discharge tension clutch 142, and a discharge conveyor. The output of the engine 80 is transmitted to 16 and the grain stored in the glen tank 13 is discharged by the discharge auger 15.

  As shown in FIG. 5, the speed reducer 27 is not used, and the driven sprocket 9b of the feed chain 9 and the drive sprocket 17a of the transfer and transfer device 18 are supported by the drive shaft 161 so as not to be relatively rotatable. The configuration can be the same as that of the first embodiment. The drive chain of the feed chain 9 and the transfer conveyor chain 17 is made common, and when the feed chain 9 is driven, the driven sprocket 9b is rotated, and at the same time, the drive sprocket 17a is rotationally driven to rotationally drive the transfer conveyor chain 17. It is configured as follows.

In this case, since the conveyance speeds of the feed chain 9 and the succession conveyance apparatus 17 are reliably aligned, it is possible to prevent problems such as cutting of cereals that occur when the conveyance speeds are different. In addition, the mechanism can be simplified by reducing the number of parts.
The above is the description of the configuration of the power transmission mechanism to each work element.

Next, the culm introduction part of the threshing part, which is the main part of the present invention, will be described with reference to FIG. 1, FIG. 6, and FIG.
As shown in FIG. 6, in the threshing unit 20, a handling cylinder 19 is provided horizontally in a handling chamber 25, and a handling cylinder shaft 19 a is pivotally supported by the machine body frame 2. Further, tooth handling teeth 26, 26... Having a plurality of different shapes are implanted on the peripheral surface of the handling drum 19. The front side of the barrel 19 is covered with a foil case 28.

As shown in FIG. 6, the feed chain 9, the transfer device 18, and the eaves holding plate 24 are disposed on the left side of the handling chamber 25.
As shown in FIG. 7, the feed chain 9 is wound between the drive sprocket 9a and the driven sprockets 9b and 9c so that the feed chain 9 is driven to rotate as the drive sprocket 9a rotates. It is composed. Further, the feed chain 9 is configured to be given tension by the tension sprocket 31 and to maintain the tension.

  As shown in FIG. 1 or FIG. 7, the feed chain 9 is disposed on the left outer side of the threshing cover, and the drive sprocket 9a is disposed at the front portion between the front and rear driven sprockets 9b and 9c, and the driven sprocket 9b disposed at the front end. Is located in the rear part of the cutting part, and is arranged in the middle part before and after the transfer device 18. The driven sprocket 9 c disposed on the rear side is located behind the handling cylinder 19 and is located in front of and below the waste transporting chain 10. In this way, the upper conveying surface of the feed chain 9 is disposed obliquely inclined backward and upward. Above the conveying surface of the feed chain 9, a culvert presser plate (or nip) 24 attached to the handling cylinder cover is arranged so as to suppress the cereals conveyed from above.

  In the transfer and transfer device 18, the transfer and transfer chain 17 is wound between the drive sprocket 17a and the driven sprocket 17b, and the transfer and transfer chain 17 of the transfer and transfer device 18 is rotationally driven as the drive sprocket 17a rotates. It is constituted so that. The drive sprocket 17 a disposed on the rear side is disposed on the front side portion of the handling cylinder 19, and the driven sprocket 17 b disposed on the front side is disposed on the rear side portion of the vertical conveying device 8. The upper conveyance surface of the transfer conveyance chain 17 is arranged obliquely rearward and upward so as to have substantially the same inclination as the upper conveyance surface of the feed chain 9 so that the transfer can be carried over without being disturbed. On the upper side of the transfer surface of the transfer and transfer chain 17, a eaves pressing plate (or pinching) 29 extending from the machine body side is disposed.

As shown in FIG. 6, the transfer device 18 and the feed chain 9 are disposed on the inner side of the body of the feed chain 9 in the front view, and compared to the upper end height of the feed chain 9, It is arranged one step lower so as to have the angle θ in FIG.
For this reason, the grain candy is conveyed in a state in which the tip side is tilted downward while being held between the inheritance conveying device 18, the feed chain 9, and the heel presser plates 24 and 29.

In such a configuration, when the cereals are introduced into the inside of the handling chamber 25, the cereals inherited from the vertical conveying device 8 are first sandwiched between the inheriting and conveying device 18 and the heel presser plate 29. It is conveyed backward. At this time, the cereal is conveyed in a state where the tip side is inclined obliquely downward.
Thereafter, the cereal is inherited to the feed chain 9 in front of the threshing portion entrance while maintaining the state where the tip side is inclined obliquely downward, and also by the transfer and transfer device 18, the feed chain 9 and the heel presser plate 24, Further, the stock end side is sandwiched and transferred into the handling chamber 25.
At this time, since the inheritance conveyance apparatus 18 becomes a conveyance means with respect to the tip side, it can prevent the conveyance delay of the tip side cereal.

Further, as shown in FIG. 7, the rear end of the transfer device 18 extends to a position where the rear end of the transfer cylinder 18 overlaps the front end of the handling cylinder 19 by the dimension A in FIG. 7. That is, it arrange | positions so that the rear part of the conveyance surface above the inheritance conveyance chain 17 may overlap with the front lower part of a handling cylinder in side view.
With this configuration, when the cereal enters the entrance of the handling cylinder 19, the cereal is sandwiched between two places in the cocoon length direction by the transfer device 18, the feed chain 9, and the heel presser plates 24 and 29. In addition, there is almost no conveyance delay on the tip side, and the cereals are transported in a substantially left-right posture, and when contacting the tooth-handling 26, the cereals are substantially perpendicular to the barrel axis 19a. It becomes a posture, the supply posture is adjusted, the occurrence of cuttings and swarf is reduced, and the threshing efficiency can be improved.
The above is the description of the cereal introduction part of the threshing part, which is the main part of the present invention.

As shown in the above description, the harvester 3 of the combine 200 that cuts the cereal by the reaper 3 disposed at the front of the machine body and is disposed at the rear part of the vertical conveying device 8 of the reaper 3 to transfer the harvested cereal to the feed chain 9. The transfer device 18 is configured to extend the rear end of the transfer device 18 to a position overlapping the front portion of the handling cylinder 19 in a side view.
Thereby, the posture of the cereals becomes constant until the tooth handling 26 acts.
In addition, the grain tip side can be forcibly sent to the inside of the handling chamber 25, and unhandled items due to a delay in the conveyance of the tip part can be prevented.

Further, in the transfer and transfer device 18, the transfer surface of the transfer and transfer device 18 is disposed at a position lower than the transfer surface of the feed chain 9 located on the side of the transfer and transfer device 18. Is also arranged inside the fuselage.
As a result, the cereal is always supplied to the handling chamber 25 with its tip pointed obliquely downward, so that it does not hit the foil case 28 or the handling cylinder 19 and can be transported smoothly.

The right view which showed the whole structure of the combine which concerns on one Example of this invention. The top view which showed the whole structure of the combine which concerns on one Example of this invention. The left view which showed the whole structure of the combine which concerns on one Example of this invention. FIG. 3 is a skeleton diagram illustrating a configuration of a power transmission mechanism to each work element according to the first embodiment. The skeleton figure which showed the structure of the power transmission mechanism to each work element which concerns on Example 2. FIG. The front view which showed the structure of the grain input part of the threshing part. The schematic diagram which showed the relationship between a succession conveying apparatus, a feed chain, and a handling cylinder.

Explanation of symbols

3 Cutting part 8 Vertical conveying device 9 Feed chain 18 Successive conveying device 19 Handling cylinder 200 Combine

Claims (2)

Harvesting the cereal by a mowing unit disposed in the front part of the machine body, arranging it at the rear part of the conveying unit of the mowing unit, and a combine transporting device for transferring the harvested cereal to the feed chain,
Extending the rear end of the transfer device to a position overlapping the front portion of the handling cylinder in a side view;
Combine transfer equipment characterized by the above. In the inherited transfer device,
The transfer surface of the transfer device is disposed at a position lower than the transfer surface of the feed chain located on the side thereof,
And the succession conveyance device is
Disposing inside the fuselage from the feed chain,
The combine transfer and transfer device according to claim 1.