JP3856738B2 - Tip-side transport body in combine waste transporting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drive mechanism for a waste transporting device that transports waste after threshing in a combine threshing device to a processing device (such as a cutter).
[0002]
[Prior art and problems to be solved by the invention]
Conventional combines include a model equipped with a processing device such as a cutter for cutting the waste after threshing, and a waste transporting device that inherits the waste from the feed chain and transports it to the processing device side. The waste is transported to a processing device (such as a cutter) by a waste transport device, and a predetermined process such as cutting is performed.
[0003]
At this time, in general, the cedar is supplied to the handling barrel in a sideways posture and threshed, and is discharged from the handling barrel in a state where the tip side hangs down, and is inherited by the evacuation conveyance device. For this reason, the waste is transported to the processing device side with a slanted posture on the tip side. For example, when the processing device is a cutter, slipping occurs between the waste and the cutter due to the inclination of the waste, and cutting is smooth. However, there is a drawback that clogging occurs.
[0004]
[Means for Solving the Problems]
The tip-side transport body in the combine waste transporting apparatus according to the present invention for solving the above-described problems includes a feed chain 9 that supplies the grain meal to the threshing apparatus 1 side, and a processing apparatus 8 for rejecting the waste after the threshing. A waste transporting device 11 for transporting to the side, the stock transporting device 11 transporting the stock source side of the waste, and a stock tip side transporting body 14 for transporting the head side of the waste The tip-side transport body 14 and the stock-source-side transport body 13 include front and rear sprockets and a chain wound between the two sprockets, and transport the waste along the movement path of the chain. None, the path on the transport side of the chain 23 of the tip side transport body 14 is inclined upward and rearward so that the start end side is positioned below the start end side of the transport side path of the chain 18 of the stock source side transport body 13; Contact the chain 18 of the stock-side carrier 13 In the combine where the driving force is transmitted from the output sprocket 27 provided to the input sprocket 28 provided in contact with the tip side carrier 14 and the tip side carrier 14 is driven, the output sprocket 27 is connected to the chain 18. The input sprocket 28 is provided so as to be in contact with the non-conveying side from the inside, and is provided so as to be in contact with the chain 23 between the front and rear sprockets 21, 22, and protrudes outward from both the sprockets 21, 22. The sprocket 22 on the rear side of the tip side transport body 14 is arranged so that the chain 23 of the tip side transport body 14 and the chain 18 of the stock source side transport body 13 are at the same height in the vicinity of the discharge position of the waste. The first feature is that it is arranged.
[0005]
Second, the input sprocket 28 is arranged in front of an intermediate position between the front and rear sprockets 21 and 22.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a side perspective view of a threshing device 1 in a combine adopting the present invention, FIG. 2 is a plan view of a main part, and a handling cylinder 3 is rotatably supported in a handling chamber 2 as in the prior art. A processing chamber 4 is provided below the processing chamber 2 for selecting the grains from the processed product threshed by the handling cylinder 3. Further, a processing chamber 7 having a second processing cylinder 6 for reprocessing is provided at the rear of the processing chamber 4, and a processing device that processes the cereal cereals (waste) after the threshing behind the processing chamber 7. As shown, a cutting device (cutter) 8 for excretion is provided.
[0007]
A feed chain 9 extending from the front side of the handling cylinder 3 to an intermediate position of the processing cylinder 6 is provided on the side of the handling cylinder 3, and cereals harvested by a pre-processing unit (not shown) are fed to the feed chain 9. The inherited cereals are supplied to the barrel 3 along the feed chain 9 and threshed.
[0008]
Further, behind the feed chain 9, there is provided a scouring and conveying device 11 from the rear end side of the feed chain 9 to the upper side of the cutter 8, and the feed chain with the threshed cereal as described above as a sewage is provided. 9 is inherited by the waste transporting device 11 and discharged above the cutter 8.
[0009]
At this time, the upper surface of the cutter 8 selectively switches whether the waste discharged to the cutter 8 side is guided to the inside of the cutter 8 to be cut by the cutter 8 or sent out to the rear of the cutter 8. 12 is provided, and the waste discharged to the upper position of the cutter 8 is either cut or conveyed to the rear of the cutter 8 without being cut.
[0010]
The feed chain 9 is configured so as to hold the culm stock side, convey the cereal in a lying position, and insert the tip side into the handling cylinder 3 from the side as in the conventional case. For this reason, the waste transporting device 11 includes a stock source side transport body 13 that inherits the stock source side of the waste and a head side transport body 14 that inherits the head side, and the waste that is inherited by the waste transport device 11. Is conveyed above the cutter 8 while being supported on the stock side and the tip side.
[0011]
On the other hand, the stocker-side transport body 13 includes a chain 18 wound around the front and rear sprockets 16 and 17 and a guide 19 that elastically opposes the chain 18 and is driven from the side of the barrel 3. The chain 18 is rotationally driven between the sprockets 16 and 17 by force (a transmission system is not shown), and the stocker side of the waste is sandwiched between the chain 18 and the guide 19 and conveyed.
[0012]
Further, as shown in FIGS. 3 and 4, the tip side transport body 14 has a configuration in which a claw 24 for scraping is attached to a chain 23 wound around the front and rear sprockets 21 and 22. Is driven and rotated between the sprockets 21 and 22 so that the claw 24 scrapes and conveys the tip of the waste.
[0013]
The stock source side transport body 13 and the tip side transport body 14 are configured as described above, and, as a result, the stock side is along the movement path of the chain 23 of the head side transport body 14 and the stock side is the stock company. It is conveyed along the movement path of the chain 18 of the side conveying device 13. Note that the chains 18 and 23 of the stock-side transport body 13 and the tip-side transport body 14 transport the waste on the lower side between the front and rear sprockets.
[0014]
At this time, the sprockets 16 and 17 before and after the stocker-side transport body 13 are arranged at substantially the same height, and the stocker-side transport path is substantially horizontal. Further, the claw 24 of the tip side transport body 14 falls down and is accommodated in the cover 26 of the tip end transport body 14 outside the transport range as in the prior art, stands up in the transport range, protrudes from the cover 26, and scrapes and transports the waste. To do.
[0015]
On the other hand, between the front and rear sprockets 16, 17 of the stocker-side transport body 13, an output sprocket 27 for taking out a driving force that comes into contact with the non-transport range side of the chain 18 from the inside is provided to be supported. The driving force is extracted from the output sprocket 27 by the 18 rotational driving.
[0016]
Further, between the sprockets 21 and 22 before and after the tip side transport body 14, an input sprocket 28 having a driving force that contacts the non-transport range side of the chain 23 from the inside is provided at a position facing the output sprocket 27. As a result, the output sprocket 28 is rotated simultaneously with the driving of the stock base side transport body 13 and the tip side transport body 14 is driven.
[0017]
At this time, the input sprocket 28 and the rear sprocket 22 of the tip side transport body 14 have a movement path on the non-transport side of the chain 23 from the input sprocket 28 to the rear sprocket 22 in the attached state of the tip side transport body 14. The sprockets 16 and 17 at the front and rear of the stocker-side transport body 13 are arranged at substantially the same height so as to be substantially horizontal along the chain 18 of the stocker-side transport body 13.
[0018]
Further, the sprocket 21 on the front side of the tip side carrier 14 is disposed at a position close to the sprocket 9 a on the rear side of the feed chain 9, and the sprockets 16, 17 of both the sprockets 22, 28 and the stocker side carrier 13. It is located at a lower position, and the movement path of the chain 23 is set so as to form a substantially triangular shape as a whole in a side view.
[0019]
As a result, the trajectory (path) of the chain side transport body 14 on the side of the transport range of the chain 23 is inclined rearwardly upward in a side view, and in the vicinity of the discharge position to the cutter 8, the transport range of the chain 18 of the stock side transport body 13 Intersects the same height as At the time of inheriting from the feed chain 9, the chain 23 of the tip side transport body 14 is positioned lower than the chain 18 of the stock side transport body 13, and the leading end of the chain 23 of the tip side transport body 14 is on the transport side. The stock source side transport body 13 is positioned below the start side on the transport side of the chain 18.
[0020]
Note that the input sprocket 28 is disposed closer to the front than the center of both the front and rear sprockets 21 and 22 of the tip side carrier 14, and the input sprocket 28 is located forward of the intermediate position between the front and rear sprockets 21 and 22. The chain 23 is provided so as to protrude outward from the belts 21 and 22, and the chain 23 is projected outside the tangent line on the non-carrying range side of both the sprockets 21 and 22 to transmit the driving force.
[0021]
Since the waste transporting device 11 has the above-described configuration, the head side of the waste hand side inherited by the waste transporting device 11 in a state in which the head side hangs downwards corresponds to the head position from the stock side. The stocker side carrier 13 takes over the stocker side at a position corresponding to the stocker height, while scraping and inheriting at a low position.
[0022]
For this reason, the waste transporting body 11 transports the waste to the upper side of the cutter 8 substantially parallel to the left-right direction of the combine body, and the tip side transporting body 14 and the stockholder side in the vicinity of the discharge position to the cutter 8. Since the height of the carrier 13 is substantially the same, the waste is not inclined in the vertical direction when discharged to the cutter 8, and the waste is supplied to the cutter 8 in a substantially parallel posture. As a result, slippage between the cutter 8 and the waste is prevented, and the waste can be stably cut.
[0023]
On the other hand, as described above, the input sprocket 28 in the tip side carrier 14 projects outward from the intermediate position of the front and rear sprockets 21 and 22 and thus is provided at the winding angle ( The number of meshes between the chain 23 and the teeth of the input sprocket 28 is increased, the driving force is stably transmitted to the chain 23, and inconveniences such as disengagement of transmission due to shaking of the chain 23 and the like are prevented.
[0024]
In particular, in the present embodiment, the input sprocket 28 is disposed closer to the front than the center of both the sprockets 21 and 22 before and after the tip side carrier 14, so that the winding angle of the chain 23 around the input sprocket 28 is larger. Thus, the driving force is transmitted more stably.
[0025]
In the present embodiment, the sprocket 22 on the rear side of the tip side carrier 14 is, as shown in FIGS. 3 and 4, a support shaft attached to a slide rod 31 that is supported slidably forward and backward on the case 26 side. 32 is rotatably supported by the shaft. The support shaft 32 protrudes outside the case 26 through a longitudinal hole 33 in the front-rear direction, and the position relative to the case 22 is fixed by a nut 34 screwed to the protruding end of the support shaft 32. .
[0026]
At this time, the support shaft 31 is urged rearward by a spring 36 interposed between the case 26 side. If the chain 23 is loosened, the nut 34 is loosened so that the sprocket 22 is moved to the spring 36. The chain 23 is urged rearward by the urging force so that the chain 23 is loosened, and the tension of the chain 23 is automatically adjusted. The sprocket 22 is positioned by fixing the support shaft 32 to the case 26 side with a nut 34 at a position where the tension is adjusted.
[0027]
Note that the case 26 of the tip side carrier 14 has a discharge hole 37 for discharging waste at a portion corresponding to the input sprocket 28 and the rear sprocket 22 and a position between the input sprocket 28 and the rear sprocket 22. Perforated, waste straw and the like generated when the waste is conveyed is discharged through the discharge hole 37 to prevent the waste straw and the like from accumulating in the case 26.
[0028]
In addition, the case 26 of the tip side transport body 14 covers the internal structures such as the sprockets 21, 22, 28 and the chain 23 from both the left and right sides. The cover 26 includes a throttle portion 26a that protrudes outward. In the present embodiment, the diaphragm portions 26a have the same symmetrical shape, and the expensive diaphragm molds of the left and right covers 26 are shared, thereby reducing the cost by using one diaphragm mold.
[0029]
Further, the cover 26 (throttle portion 26a) covers a space (dead space) for sequentially raising the claws 24, and is formed so as to be completely raised when the claws 24 protrude from the case 26. It is configured to prevent inconveniences such as the nail 24 on the way coming into contact with the cereal and to act smoothly (scraping of the waste).
[0030]
FIG. 1 shows the positions of the sprockets of the tip side carrier 14 deformed, and the sprockets of the tip side carrier 14 are accurately arranged at the positions shown in FIGS. ing.
[0031]
【The invention's effect】
According to the structure of the present invention configured as described above, since the front end side of the tip side carrier is close to the rear end side of the feed chain, the tip side of the waste is scraped and inherited relatively early, The waste is transported to the processing apparatus side substantially parallel to the horizontal direction of the machine body, and the rear end of the tip side transport body is substantially the same as the height of the stock side transport body in the vicinity of the discharge position to the processing apparatus. Therefore, when the waste is discharged to the processing apparatus, there is almost no vertical inclination, and the waste can be supplied to the processing apparatus in a substantially parallel posture.
[0032]
At this time, the input sprocket of the driving force of the tip side carrier projects to the outside of the front and rear sprockets, and the chain path forms a substantially triangular shape in a side view, so the winding angle of the input sprocket with the chain increases and the tip side transport A driving force can be stably supplied to the body. In addition, the output sprocket that extracts the driving force from the stock source side transport body is in contact with the non-transport side of the chain of the stock source side transport body from the inside, thereby preventing the stock side side transport from being driven to the tip side transport body. Power output can be performed stably.
[0033]
In particular, the input sprocket is arranged on the front side between the front and rear sprockets of the tip side carrier, so that the winding angle with the chain becomes larger and the transmission efficiency of the driving force is not only higher, but also the input sprocket and the rear side. Since the chain between the sprockets is substantially horizontal, no excessive force is applied to the chain side, and the chain is driven to rotate stably.
[Brief description of the drawings]
FIG. 1 is a schematic side view showing an internal configuration of a threshing apparatus.
FIG. 2 is a plan view of an upper position portion of a cutter in the threshing apparatus.
FIG. 3A is a cross-sectional plan view of a tip side transport body, and FIG. 3B is a schematic side view showing the main part of the internal structure of the tip side transport body.
4A is a schematic side view showing the main part of the internal structure of the tip side carrier, FIG. 4B is a front view of the tip side carrier, and FIG. 4C is a side view of the tip side carrier. is there.
[Explanation of symbols]
1 Threshing device 8 Cutter (processing device)
9 Feed Chain 11 Waste Conveying Device 13 Stock-side Conveying Body 14 Tip-side Conveying Body 18 Chain 21 Sprocket 22 ahead of Tip-side Conveying Body 23 Sprocket 23 behind Tip-side Conveying Body Chain 27 Output Sprocket 28 Input Sprocket

Claims (2)

A feed chain (9) for supplying cereals to the threshing device (1) side, and a sewage transporting device (11) for transporting the scoured waste after threshing to the processing device (8) side of the scouring are provided. The spear transport device (11) includes a stock source side transport body (13) that transports the stock side of the waste and a tip side transport body (14) that transports the head side of the waste, and the head side transport body (14) and the stock-side carrier (13) include front and rear sprockets and a chain wound between the two sprockets, configured to convey waste along the movement path of the chain, the tip side The path on the transport side of the chain (23) of the transport body (14) rises backward so that the start end side is located below the start end side of the path on the transport side of the chain (18) of the stocker side transport body (13). Inclined, output chain provided in contact with the chain (18) of the stock carrier (13) In the combine where the driving force is transmitted from the rocket (27) to the input sprocket (28) provided in contact with the chain (23) of the tip side carrier (14), and the tip side carrier (14) is driven, The output sprocket (27) is provided so as to contact the non-conveying side of the chain (18) from the inside, and the input sprocket (28) is connected to the chain (23) between the front and rear sprockets (21), (22). It is provided so as to contact from the inside, and is arranged so as to protrude outward from both sprockets (21), (22), and the chain (23) of the tip side carrier (14) and the stockholder in the vicinity of the discharge position of the waste The converter in which the sprocket (22) on the rear side of the tip side carrier (14) is arranged so that the chain (18) of the side carrier (13) has the same height. Tip-side carrier in Hai稈 conveying device down. The tip-side transport body of the combine waste transporting apparatus according to claim 1, wherein the input sprocket (28) is disposed in front of an intermediate position between the front and rear sprockets (21), (22).

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