JP4874702B2 - Combine - Google Patents

Description

  The present invention relates to a combine, and more particularly, to a combine having a pretreatment unit that conveys cereal grains that have been raised by a pulling device and cut by a cutting device, using a lower tip carrier and an upper tip carrier.

  In a conventional combine, a pre-processing unit having a cutting blade, a pulling device, and various transport bodies is arranged on the front side of the machine body. The cereal meal is configured to be conveyed to a threshing device provided on the rear side of the machine body by various conveying bodies. The carrier of such a pre-processing part is comprised by the stock former carrier, the tip carrier, etc., and the tip carrier has a lower tip carrier and an upper tip carrier.

  As for the lower tip transport body and the upper tip transport body, one in which a claw-chain is driven by the same drive shaft to transport cereals has been proposed (for example, see Patent Document 1). According to this, by making the diameter of the sprocket that drives the upper tip transporter larger than the diameter of the sprocket that drives the lower tip transporter, by transporting the upper tip transporter side at a high speed, Was kept in good condition.

  Further, there has been proposed a configuration in which a driven sprocket of the lower tip transport body and a drive sprocket of the upper tip transport body are coupled so as to integrally rotate via a rotating shaft (see, for example, Patent Document 2).

JP-A-6-141650 JP 2000-224912 A

  By the way, the arrangement | positioning position of the conveyance body in a pre-processing part is set so that the channel | path for conveying the harvested potato can be ensured by the raising apparatus. That is, the arrangement position of the conveying body (particularly the upper tip conveying body) is set according to the position of the pulling device.

  However, in the case where the chain with claw is driven by the same drive shaft as described above and the cereals are conveyed, the arrangement position of the upper tip conveying body is set by the arrangement position of the raising device as described above, Along with this, the arrangement of the drive shaft is also set, and the degree of freedom in design is reduced, which may hinder compactness. In addition, in order to increase the transport speed of the top tip transport body relative to the bottom head transport body, increasing the diameter of the sprocket that drives the top tip transport body may lead to enlargement of the transport body .

  Further, in the case where the driven sprocket of the lower tip transport body and the drive sprocket of the upper tip transport body are connected so as to rotate integrally through the transmission shaft, the lower tip transport body and the upper tip transport body are transported in the cereal In the vertical direction, the driven sprocket of the lower tip transporter and the drive sprocket of the upper tip transporter are arranged coaxially, so that the setting of the transport path is limited, and the cereal to be transported However, there was a risk of an unreasonable posture.

  Therefore, an object of the present invention is to provide a combine that can prevent the cereals being conveyed from being in an unreasonable posture and can be made compact.

The present invention according to claim 1 (see, for example, FIGS. 1 to 4) is a raising device (for example, 15, 16, 17) and disposed behind the raising device (for example, 15, 16, 17). A lower tip transport body (33) and an upper tip transport body (36), and the cereals that are raised by the pulling device (for example, 15, 16, 17) and cut by the cutting device (61), In the combine (1) having the pretreatment part (3) which is transported by the lower tip transport body (33) and the upper head transport body (36),
The lower tip conveying body (33) includes a drive sprocket (33b) provided on a first drive shaft (31) disposed to be inclined forward in the upward direction, and a right front side obliquely with respect to the drive sprocket. A driven sprocket (33c) disposed on the chain, and a chain with a claw (33a) wound around the drive sprocket (33b) and the driven sprocket (33c),
The upper tip conveying body (36) includes a drive sprocket (36b) provided on a second drive shaft (32) disposed to be inclined forward in the upward direction, and a left rear side obliquely with respect to the drive sprocket. A driven sprocket (36c) disposed on the chain, and a claw chain (36a) wound around the drive sprocket (33b) and the driven sprocket (33c),
The second drive shaft (32) is set to the upper right side with respect to the first drive shaft (31), and the first drive shaft (31) and the second drive shaft (32) are left and right. The upper end (31a) of the first drive shaft (31) and the lower end (32a) of the second drive shaft (32) are arranged via a transmission mechanism (35). Linked ,
In the state where the upper tip transport body (36) is shifted to the right side when viewed from the upper axial direction of the first and second drive shafts (31, 32) with respect to the lower tip transport body (33). The chain with a claw (33a) (36a) of the tip carrier (33) and the upper tip carrier (36) is arranged so as to incline so that the downstream side in the conveying direction of the cereal is directed to the left side.
It is in the combine characterized by that.

According to the second aspect of the present invention (see, for example, FIGS. 2 to 4), the three raising devices (for example, 15, 16, and 17) are arranged side by side in the left-right direction, and the left raising device (17) and the center. The pulling device (16) raises two cereals, the right pulling device (15) raises one cocoon,
The lower tip transport body (33) and the upper tip transport body (36) are configured to transport a single grain cereal that is pulled and cut by the right pulling device (15) .
A combine (1) according to claim 1.

  In addition, although the code | symbol in the said parenthesis is for contrast with drawing, it does not have any influence on description of a claim by this.

  According to the first aspect of the present invention, since the first drive shaft and the second drive shaft are arranged offset in the left-right direction, the lower tip transport body and the upper tip transport body in the pretreatment unit The degree of freedom of arrangement can be improved, the combine can be made compact, and a transport path that prevents the transported cereals from being in an unreasonable posture can be secured. Furthermore, since the first drive shaft, the upper end portion, and the lower end portion of the second drive shaft are interlocked via the transmission mechanism, the conveyance body is enlarged only by changing the gear ratio of the transmission mechanism portion. It is possible to increase the speed of the claw chain of the upper tip transport body without any problems.

  According to the second aspect of the present invention, there are three juxtaposed in the left-right direction, the left elevating device and the central elevating device raise two cereals, and the right elevating device produces one cereal cocoon. A pulling type, so-called three-row harvesting combine, wherein the lower-tip carrier and the upper-tip carrier carry one grain of cereal that is raised and cut by the right-hand raising device, Since the first drive shaft is offset to the left with respect to the drive shaft, the arrangement of the various culm transporters in the pre-processing section in the combination of the three-row cutting does not interfere with the traveling mission case, etc. Thus, the combine can be made compact.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  As shown in FIG. 1, the combine 1 includes a pre-processing unit 3 that is connected to a traveling machine body 2 supported by crawler traveling devices 7 and 7 on the left and right in the traveling direction so as to be movable up and down with respect to the traveling machine body 2; A threshing device 6 and an operation unit 5 are provided.

  As shown in FIGS. 1 and 2, the traveling machine body 2 includes a driving unit 5 in which an operation panel 11 and a driver's seat 12 are provided in front of the right side in the left-right width direction, and a Glen tank ( (Not shown) are respectively disposed on the left side of the traveling machine body 2, and a threshing feed chain (not shown) that conveys the culm cut by the pre-processing unit 3, and the threshing feed chain A threshing device 6 for threshing the conveyed cereal meal is provided. The grain threshed by the threshing device 6 is lifted and conveyed and temporarily stored in the Glen tank.

  The pre-processing unit 3 includes a large number of weed dividers 18 that weed cereals over substantially the entire width of the traveling machine body 2, and the weed dividers 18 are respectively arranged on a weed frame 67 that extends forward of the machine body. Installed. The rear side of the weeding frame 67 is fixed to a horizontal frame 66 extending in the left-right direction of the machine body on the lower side of the pretreatment unit 3. Further, at the rear of each weed divider 18, pulling devices 15, 16, and 17 for raising the weed cereal straw are provided so as to rise from the front toward the rear. Furthermore, side covers 65 and 65 that can be easily attached and detached for maintenance and maintenance are disposed on both side surfaces of the pretreatment unit 3.

  The combine 1 described in the present embodiment is a combine for three-row cutting. The pulling devices 15, 16, and 17 are the right pulling device 15, the central pulling device 16, and the left pulling device 17, respectively. It has become.

  The pre-processing unit 3 is connected to a longitudinal transmission case 23 whose operation base end side is fixed to the transmission shaft case 22 and extends obliquely downward and forward of the traveling machine body 2. The vertical transmission case 23 supports the pretreatment unit 3 so as to be movable up and down based on expansion and contraction of a hydraulic cylinder (not shown) connected to an intermediate portion thereof. At the lower end of the vertical transmission case 23, that is, on the side of the connecting portion with the pretreatment unit 3, a horizontal transmission case 24 that extends in the left-right direction of the machine body and is substantially orthogonal to the vertical transmission case 23 is integrated. Connected.

  As shown in FIG. 2, the right pulling device 15 has a claw chain (not shown) and a pulling case 15a. The claw chain has a plurality of claws (not shown) at predetermined intervals. ) Are attached, and the claws are raised to rotate upward in the case 15a to raise the cereal. The power for driving the chain with claw is inclined upward from the drive shaft in the transmission shaft case 22 through the drive shaft in the vertical transmission case 23 and the horizontal transmission case 24 from the horizontal transmission case 24 to the front side of the machine body. It is transmitted by a right-handed extending transmission case 25a. Moreover, the upper end part of the right side raising device 15 is supported by this right side raising and transmission case 25a.

  Similarly, the central pulling device 16 has a claw chain (not shown) and a pulling case 16a, and a plurality of claws 16ba are attached to the claw chain at predetermined intervals. 16ba is raised, and the inside of the case 16a is rotated upward to raise the cereal. The power for driving the chain with claw is inclined upward from the drive shaft in the transmission shaft case 22 through the drive shaft in the vertical transmission case 23 and the horizontal transmission case 24 from the horizontal transmission case 24 to the front side of the machine body. It is transmitted by a centrally raised transmission case 25b extending in a shape. The central pulling device 16 is supported at its upper end by the central pulling transmission case 25b.

  Further, the left raising device 17 includes a chain with a claw (not shown) and a raising case 17a, and a plurality of claws 17ba are attached to the clawed chain at predetermined intervals. Pull up and rotate upward in the case 17a to raise the cereal. The power for driving the chain with claw is inclined upward from the drive shaft in the transmission shaft case 22 through the drive shaft in the vertical transmission case 23 and the horizontal transmission case 24 from the horizontal transmission case 24 to the front side of the machine body. It is transmitted by a left-side extending transmission case 25c extending in a shape. Further, the upper end portion of the left pulling device 17 is supported by the left pulling transmission case 25c.

  As shown in FIG. 1, a cutting blade (cutting device) that cuts the roots of the cereals close to the ground behind the pulling devices 15, 16, and 17 and at the lower front portion of the lateral transmission case 24. 61 is provided, and the cereals cut by the cutting blade 61 are picked up in a substantially upright state by the pick-up transfer device 30 and transferred backward.

  As shown in FIG. 2, the scraping and transporting device 30 roughly includes right-side stock transport chains 53 and 54, a right-handed star wheel (not shown), a right-bottom tip transport body 33, and a right-hand top tip transport. A right-hand drive device 30r having a body 36 and the like, a central drive star wheel (not shown), a left-hand stock transport chain 55, a left-hand drive star wheel 62 (see FIG. 1), a left lower tip transfer device 42, And a left side picking and conveying device 30l having a left upper tip conveying body 47 and the like.

  Then, the right cereal rice cake scraped by the right-handed star foil or the like is guided to the guide plate 68, and the right stock transport chain 53, 54, the right lower tip transport body 33, and the right upper tip transport body 36. Is conveyed by. In addition, the center cereal raked by the central raked star foil and the left cereal raked by the left raked star foil 62 (see FIG. 1) are guided to the guide plate 68, The left stock transport chain 55, the left lower tip transport body 42, and the left upper tip transport body 47 are transported.

  The right stock transport chain 54 is driven by a drive sprocket 26 that is fixed integrally with a first drive shaft 31 that will be described in detail later, and the left stock transport chain 55 is a drive shaft (see FIG. It is driven by a drive sprocket 27 that is fixed integrally with the drive sprocket 27 (not shown).

  Further, a handling depth conveying device 50 that can swing up and down around the rotation fulcrum shaft 58 is provided behind the above-described stirring conveying device 30. The stock base side is held by the stock source handling depth transport body 55 in the handling depth transport device 50, and the head side is sandwiched and transported by the head handling depth transport body 56. Moreover, it is automatically adjusted to the handling depth set beforehand by this handling depth conveyance apparatus 50, and is conveyed toward the above-mentioned threshing apparatus 6 by the threshing feed chain (not shown).

  As shown in FIG. 2, the left lower tip transfer body 42 and the left upper tip transfer body 47 of the scraping transfer device 30 are connected to the lateral transmission case 24, and power is transmitted from the lateral transmission case 24 via a bevel gear. And a drive sprocket (not shown) arranged to rotate integrally with the drive shaft, and a driven sprocket (not shown). Each of which has a sprocket (not shown) and includes clawed chains 42a and 47a wound around the drive sprocket and the driven sprocket. The left lower tip carrier 42 and the left upper tip carrier 47 are provided with pipes 43 so as to cover the drive shaft, thereby protecting the drive shaft.

  Next, the right lower tip transport body 33 and the upper head transport body 36 which are the main parts of the present invention will be described.

Right under tip carrier 33 and right on the tip carrier 36 is configured to be driven by the first drive shaft 31 and the second drive shaft 32 disposed to be offset in the horizontal direction, these The first and second drive shafts 31 and 32 are inclined forward toward the upper side.

  As shown in FIG. 2, the first drive shaft 31 is connected to the lateral transmission case 24 at the lower end portion, and power is transmitted from the lateral transmission case 24 via a bevel gear. Further, as shown in FIG. 4, a drive sprocket 33b of a lower tip conveying body 33, which will be described later, is fixed to the upper part, and further, the upper end 31a rotates integrally with the first drive shaft 31. Thus, the sprocket 31b is fixed.

The lower tip carrier 33 includes a drive sprocket 33b fixed so as to rotate integrally with the first drive shaft 31, a driven sprocket 33c disposed obliquely forward and to the right of the drive sprocket, and these drive sprockets. 33b and a chain 33a with claws wound around the driven sprocket 33c. Further, a plurality of claws 33ab are attached to the chain 33a with claws at a predetermined interval.

  Above the first drive shaft 31, a second drive shaft 32 that is offset to the right with respect to the first drive shaft 31 is rotatably disposed. In the lower end portion 32a, the sprocket 32b is fixed so as to rotate integrally, and in the upper portion, the driving sprocket 36b of the head tip carrier 36 is fixed.

The head tip transport body 36 includes a drive sprocket 36b fixed so as to rotate integrally with the second drive shaft 32, a driven sprocket 36c disposed obliquely rearward to the drive sprocket, and these drive sprockets. 36b and a chain 36a with a claw wound around a driven sprocket 36c. Further, a plurality of claws 36ab are attached to the chain 36a with claws at a predetermined interval.

  Further, a sprocket 31b fixed to the upper end 31a of the first drive shaft 31, a sprocket 32b fixed to the lower end 32a of the second drive shaft 32 for transmitting the drive to the head tip carrier 36, and these A transmission mechanism 35 that transmits power from the first drive shaft 31 to the second drive shaft 32 is configured by the sprocket 31b and the chain 35a wound around the sprocket 32b. As a result, the first drive shaft 31 and the second drive shaft 32 that are arranged offset in the left-right direction can transmit power from the first drive shaft 31 to the second drive shaft 32. It becomes.

  The upper tip carrier 36 and the lower tip carrier 33 on the right side are housed in cases 36d, 33d, and the claws 36ab, 33ab of the chains 36a, 33a with the claws protrude from one side of the case. ing. The first drive shaft 31 is protected by a pipe 38 disposed so as to cover the first drive shaft 31 at a portion that is outside the case 33d. Similarly, the second drive shaft 32 is protected by a pipe 39 disposed so as to cover the second drive shaft 32 at a portion outside the case 36d.

  Further, as shown in FIG. 2, the arrangement position of the upper tip carrier 36 is determined by the arrangement position of the right pulling device 15. The first drive shaft 31 arranged to be offset in the left direction with respect to the second drive shaft 32 that drives the right upper tip carrier 36 is a right stock transport that is arranged to rotate integrally. The arrangement position of the drive sprocket 26 of the chain 54 is also offset in the left direction. Thus, the right stock transport chain 54 can be disposed without interfering with the traveling transmission case 60. That is, offsetting the first drive shaft 31 in the left direction with respect to the second drive shaft 32 enables the preprocessing unit 3 to be disposed in the right direction with respect to the traveling machine body 2. Thus, the combine 1 can be made compact.

  Moreover, since the 1st drive shaft 31 is offset to the left direction with respect to the 2nd drive shaft 32, the arrangement | positioning of the right lower ear tip conveyance body 33 and the right upper tip transfer body 36 is also offset, and the cereal to be conveyed is It is possible to secure a conveyance path that does not cause an unreasonable posture.

  Further, the transmission mechanism 35 can change the gear ratio of the sprocket 31b and the sprocket 32b to set the conveying speed of the right lower tip carrier 33 and the right upper tip carrier 36. The right lower tip carrier It is possible to increase the transport speed of the right upper tip transport body 36 relative to 33.

  Next, the operation of the combine 1 according to the present invention will be described.

  As shown in FIG. 2, the triple-cutting combine raises the culm with the pulling devices 15, 16, and 17 and cuts the cereal with the cutting blade 61. Of the harvested corn straw, the right corn straw is raked into the right rake conveying device 30r by a right rake star foil (not shown) or the like and guided to the guide plate 68 (see FIG. 3). It is transported to the handling depth transport device 50 by the right stock transport chains 53 and 54, the right lower tip transport body 33, and the right upper tip transport body 36.

  Of the harvested corn straw, the middle corn straw and the left-side corn straw are raked into the left-hand drive device 30l by a central rake star foil (not shown) or the like. Further, the left cereal rice cake 62 is raked into the left rake transfer device 30l by the left rake star foil 62 or the like. Then, these two grain culms are guided to the guide plate 68 (see FIG. 3), and the handling depth conveying device 50 is constituted by the left stock transport chain 55, the left lower tip transport body 42, and the left upper tip transport body 47. It is conveyed to.

  In the handling depth conveying device 50, the cereals inherited from the above-described scraping conveying device 30 are conveyed with the stock side being sandwiched by the stock handling depth transport body 57 and with the tip side being sandwiched by the tip handling depth transport body 56. . The handling depth conveying device 50 automatically adjusts the handling depth set in advance. Thereafter, the cereal is handed over from the handling depth conveying device 50 to a threshing feed chain (not shown) and conveyed toward the threshing device 6 described above.

  As described above, according to the combine 1 according to the present invention, the first drive shaft 31 and the second drive shaft 32 are arranged offset in the left-right direction. The range that can be arranged in the left-right direction with the section 3 is increased, the combine 1 can be made compact, and a transport path that prevents the transported cereals from being in an unreasonable posture can be secured. It becomes. Furthermore, since the first drive shaft 31, the upper end portion 31a, and the lower end portion 32a of the second drive shaft 32 are interlocked via the transmission mechanism 35, simply changing the gear ratio of the transmission mechanism 35 portion, It is possible to increase the speed of the claw-equipped chain 36a of the top tip transport body 36 without enlarging the transport body.

  In addition, three right side, center and left side pulling devices 15, 16, and 17 are juxtaposed in the left-right direction, and the left pulling device 17 and the central pulling device 16 cause two rows of rice straws to rise. It is a type of so-called three-row harvesting combine that raises one cereal grain by the pulling device 15, and the lower tip transport body 33 and the upper tip transport body 36 are pulled and cut by the right pulling device 15. Since the first drive shaft 31 is conveyed with respect to the second drive shaft 32, the first drive shaft 31 is offset in the left direction with respect to the second drive shaft 32. The arrangement of the cereal carrier is a rational arrangement that does not interfere with the traveling mission case 60 and the like, and the combine 1 can be made compact.

  In the present embodiment, the lower tip transport body 33 and the upper head transport body 36 are described as being applied to the combine 1 that harvests three rows of cereals. However, the present invention is not limited to this. It can also be applied to a combine that harvests 5 or 5 grains of cereal.

  Further, the transmission mechanism 35 has been described as transmitting power by the chain 35a. However, the transmission mechanism 35 is not limited to this, and it is also possible to transmit power using, for example, a gear.

The side view of the front part of a combine. The top view of the front part of a combine. The principal part back perspective view of a pre-processing part. The perspective view which looked at the 1st and 2nd drive shaft, the right lower tip carrier, and the right upper tip carrier from the body diagonally forward .

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combine 3 Pre-processing part 15 Right raising apparatus 16 Center raising apparatus 17 Left raising apparatus 31 1st drive shaft 31a Upper end part 32 2nd drive shaft 32a Lower end part 33 Lower tip conveyance body 33a Chain 33b with a nail | claw drive Sprocket 33c Driven sprocket 35 Transmission mechanism 36 Upper tip carrier 36a Chain 36b with pawl Drive sprocket 36c Driven sprocket 61 Cutting device (cutting blade)

Claims (2)

A pulling device, and a lower tip transporter and an upper tip transporting body disposed behind the pulling device, the cereals that are raised by the pulling device and cut by the cutting device are In a combine having a pretreatment unit that is conveyed by the tip carrier and the upper tip carrier,
The lower tip conveying body includes a drive sprocket provided on a first drive shaft arranged to be tilted forward in the upward direction, a driven sprocket arranged obliquely forward on the right side of the drive sprocket, and these A clawed chain wound around a drive sprocket and a driven sprocket,
The head tip transport body includes a drive sprocket provided on a second drive shaft that is disposed to be inclined forward in the upward direction, a driven sprocket that is disposed obliquely rearward on the left side of the drive sprocket, and these A clawed chain wound around a drive sprocket and a driven sprocket,
The first drive shaft and the second drive shaft are offset in the left-right direction with the second drive shaft as the upper right side with respect to the first drive shaft, and the first drive shaft The upper end of the drive shaft and the lower end of the second drive shaft are interlocked via a transmission mechanism ,
In the state where the upper tip transport body is shifted to the right side when viewed from the upper axial direction of the first and second drive shafts with respect to the lower tip transport body, the lower tip transport body and the nail of the upper tip transport body The attached chain is arranged so as to be inclined so that the downstream side in the conveying direction of the cereals faces the left side,
Combine that is characterized by that. The pulling devices are arranged in parallel in the left-right direction, the left pulling device and the central pulling device raise two ridges, and the right pulling device causes one ridge.
The lower tip carrier and the upper tip carrier is formed by conveying the culms Paragraph cut is caused by the right Pick device,
The combine according to claim 1.

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