JP3683140B2 - The harvester structure of the harvesting machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a harvesting part structure of a harvesting and harvesting machine including a plurality of raising paths arranged in the transverse direction of the machine body, and a plurality of raising devices acting individually on the grains of the plurality of raising paths.
[0002]
[Prior art]
In the above harvesting and harvesting machine, when a power take-out unit for the trigger device is provided at a plurality of positions of the transmission case located at the bottom of the mowing unit, and the power is transmitted from the plurality of power take-out units to the plurality of trigger devices, the transmission case Therefore, the transmission distance of the distribution transmission unit that distributes and transmits the power to the input unit of each trigger device becomes longer.
  For this reason, there have conventionally been, for example, those disclosed in JP-A-8-42761 and those shown in FIG. 19 and FIG. That is, a drive case 30 is provided above a plurality of trigger paths, and the drive case 30 is connected to the drive case 35 on one side of the drive case 30 to transmit power, and a plurality of triggers are generated from the drive case 30. The power transmission distance of the distribution transmission portion configured to transmit power to the input portion of the device 12 and distribute power from the drive case 30 to the input portion of the drive device 12 is relatively short, so that the distribution transmission portion There is a device that can drive each triggering device 12 while reducing the size of the device.
[0003]
[Problems to be solved by the invention]
  In the publication disclosed above, a bevel case made of a sheet metal material that is used as a part of a distribution transmission case that distributes power from the cause drive case to the input parts of a plurality of cause devices as a cause drive case, A case in which a transmission shaft case made of a round steel pipe material connecting bevel cases is combined is adopted. In the case shown in FIGS. 19 and 20, an output hole to which a distribution transmission case 31 is connected as a drive case 30. A casting case with a large number of parts was used, and in all cases, many parts were required for the number of trigger devices.
  That is, in the former case, it was necessary to create a single triggering transmission case by connecting a large number of transmission shaft cases to the number of triggering devices.
  In the latter case, since a long drive case with many output holes is difficult to cast, when the number of triggering devices increases, a plurality of short divided drive cases 30c with a smaller number of output holes are provided. It was necessary to connect the pieces to create one long drive case 30.
  SUMMARY OF THE INVENTION An object of the present invention is to provide a harvesting part structure of a harvesting and harvesting machine capable of driving each triggering device while shortening the distance of distribution transmission for power distribution to a plurality of triggering devices and reducing the number of necessary parts. There is.
[0004]
[Means for Solving the Problems]
  The configuration, operation, and effect of the invention according to claim 1 are as follows.
[0005]
  〔Constitution〕
  In the harvesting part structure of a harvesting machine comprising a plurality of raising paths arranged in the transverse direction of the machine body, and a plurality of raising devices acting individually on the culms of the plurality of raising paths,
  A trigger drive case made of steel pipes located laterally above the plurality of trigger paths and having output holes at a plurality of locations in the axial direction, and connected to one end side of the trigger drive case. A drive transmission case for transmitting the rotational force to a drive shaft located inside the drive case, and a plurality of the drive devices for connecting the drive shaft to the plurality of output holes separately to cause the drive shaft to rotate. A plurality of distribution transmission cases that are individually transmitted to the input section of
  The distribution transmission case includes an input rotation transmission shaft so as to draw power in a direction intersecting the drive shaft in the drive case andAn end of the distribution transmission case on the input side enters the output hole of the trigger drive case and is configured to be connected to the drive case.There,
  Further, the trigger drive case is provided with a support member for supporting a distribution transmission case arranged with an end portion inserted in the output hole of the trigger drive case, and supporting the trigger drive case on the outside of the trigger drive case,
  The support member is configured to support the distribution transmission case at a position away from the output hole in a direction along the axis of the input rotation transmission shaft incorporated in the distribution transmission case. The case is provided with a case insertion hole that supports the distribution transmission case in a state of being inserted at a position away from the output hole in a direction along the direction..
[0006]
  [Action]
  A drive case is provided above the cause path, and power is distributed and transmitted from the drive case to a plurality of trigger devices by a plurality of distribution transmission cases. Can be driven.
  Because the drive case is made of steel pipes with output holes at multiple locations, the drive case can be created with 3 or 4 trigger devices, even if the drive case is made with a single steel tube, or 5 or 6 trigger devices. For example, the drive case can be made of two steel pipes, and the drive case can be made with fewer parts than the number of devices.
[0007]
  〔effect〕
  While it can cut multiple lines, it reduces the distance to distribute the drive force of the drive shaft of the drive case to the multiple drive devices, and further causes the drive case to account for the number of devices. Can be made with a small number of parts and can be obtained inexpensively in terms of parts cost and assembly cost.
  It is necessary to create a multi-purpose mowing harvester with a mowing unit that has different number of triggering devices and different intervals between the triggering devices because it can be created with fewer parts than the number of devices. The number of types of drive cases can be reduced for the number of models, making it cheap and easy to manufacture.
[0008]
[0009]
[0010]
[0011]
[0012]
[0013]
[0014]
[0015]
[0016]
[0017]
[0018]
  [Action]
  The end portion of the distribution transmission case is caused to enter the output hole of the drive case, and this entry prevents the center of the distribution transmission case and the drive case from being misaligned so that both cases can be connected. Even if the distribution transmission case is caused to slightly enter the drive case, the support member supports the distribution transmission case outside the output hole, thereby preventing the relative inclination between the drive case and the distribution transmission case.
[0019]
  〔effect〕
  The drive case and the distribution transmission case are prevented from being misaligned and relatively inclined, so that power can be transmitted smoothly. On the other hand, both cases can be connected in a compact manner with a simple connection structure that causes a distributed transmission case and little penetration into the drive case.
[0020]
  The structure, operation, and effect of the invention according to claim 2 are as follows.
[0021]
〔Constitution〕
  In the configuration of the invention according to claim 1, a sealing material is provided between the distribution transmission case and the raising drive case.
[0022]
  [Action]
  Even if the distribution transmission case causes a slight entry into the transmission case, the gap between the two cases can be sealed with a sealing material.
[0023]
  〔effect〕
  Even if both cases are compactly connected by causing the distribution transmission case to enter the drive case slightly, the space between the cases is sealed with a sealing material, so that dust and the like are less likely to enter and failure.
[0024]
  The structure, operation, and effect of the invention according to claim 3 are as follows.
[0025]
〔Constitution〕
  In the configuration of the invention according to claim 1 or 2, a plurality of bevel gears for individually transmitting the rotational force of the drive shaft to the plurality of distribution transmission cases are fitted on the drive shaft, and the drive shaft is A space in which the plurality of bevel gears are formed with angular shafts that engage with each other so as to rotate together, and are fitted between the bevel gears of the drive shaft, and both ends abut against the bevel gears to set the interval between the bevel gears to a predetermined interval. Sir is equipped.
[0026]
  [Action]
When a round shaft is employed as the drive shaft, the drive shaft and the bevel gear are engaged with each other so as to be integrally rotated by a spline or a key. When engaging with a spline, move it all the way along the drive shaft.LeIn order to be able to attach the gear, the drive shaft needs to be a split shaft that is divided in the vicinity of the bevel gear attachment. When engaging with a key, a key is required in addition to the drive shaft and bevel gear. On the other hand, when a square shaft is adopted as the drive shaft, the bevel gear can be attached to the middle of the drive shaft while the drive shaft is a long shaft that is not divided in the vicinity of the bevel gear attachment, and a special engagement member such as a key can be used. The drive shaft and the bevel gear are engaged with each other so as to rotate integrally while making unnecessary. For this reason, the bevel gear is attached to the middle of the drive shaft so as to be integrally rotatable while making the drive shaft a long shaft and eliminating the need for engaging means other than the drive shaft and the bevel gear.
[0027]
  〔effect〕
    Adopting a case made of steel pipe as the drive case, the drive case can be lengthened and the drive shaft can be lengthened, and the drive shaft and bevel gear can be rotated together. By eliminating the means, the cost can be further reduced as a whole. Also, when a key is used, it may take time to wear it, or it may cause a mistake to forget to put it on, but it can be assembled efficiently without any assembly failure without such time and effort. .
[0028]
[0029]
[0030]
  [Action]
  When assembling the drive case, the drive shaft in which the bevel gear and the spacer are assembled is raised and inserted into the drive case from one end side. When the drive shaft is raised and the assembly position with respect to the drive case is at a predetermined position, the spacers are set at intervals to cause the bevel gears to be raised and the assembly position with respect to the drive case is the predetermined assembly position. Are assembled at predetermined assembly positions.
[0031]
  〔effect〕
  The drive shaft in a state where the bevel gear and the spacer are assembled is raised and inserted into the drive case, and the bevel gear and the drive shaft can be efficiently assembled into the drive case and obtained at low cost.
[0032]
DETAILED DESCRIPTION OF THE INVENTION
  As shown in FIG. 1 and FIG. 3, the cutting unit 10 including a plurality of weeding tools 11, the raising device 12, the clipper-shaped cutting device 13, and the like arranged in the lateral direction of the machine body, the crawler type traveling device 1, the driving unit The threshing device 4 for threshing the harvested cereals from the reaping unit 10 and the threshing grains from the threshing device 4 are stored while being connected to the front part of the traveling machine body including 2 and the like so as to be moved up and down by the lift cylinder 3. A grain tank 5 is provided in the traveling machine body to harvest rice husks such as rice and wheat, and the harvested rice husk is threshed and the threshing grains are stored, and the harvester harvester is configured as an example. It is.
[0033]
  The mowing unit 10 is configured as shown in FIGS.
  That is, when the input cylinder portion 14a on the proximal end side is connected to the support portion of the traveling machine body so as to be rotatable about the axis X in the lateral direction of the machine body, it swings up and down around the axis X to the traveling machine body. A transmission case 14 that is supported, a plurality of weed bars 15 that are connected at the base end side to an output cylinder portion 14 b facing the machine body on the distal end side of the transmission case 14, and the output cylinder portion 14 b of the transmission case 14. And a plurality of weed bars 15 connected in parallel to the base end side of the plurality of weed bars 15 and a plurality of weed bars 15 connected to the connecting bar 16 on the base end side. A plurality of weed paths R are formed by the plurality of weed bars 15 in a state in which a plurality of weed bars 15 are formed with a pair of weed bars 15 and 15 adjacent to each other. Of weed bar 15 The weeding implements 11 are attached to the end sides, and the plurality of triggering devices 12 arranged in a row in the lateral direction of the fuselage on the rear side of these weeding implements 11 are separately provided in the plurality of triggering path R grains. The reaping device 13, which is positioned one by one on the lateral side of each cause path R so as to act and supported on the front end side of the reaping part frame, is disposed at the end part of the cause path R. The cereal conveyor device A, which is supported near the front side of the connecting rod 16 and includes three packer devices P1 to P3 arranged in the horizontal direction near the upper portion of the mowing device 13, is supported on the rear end side of the mowing unit frame. Is configured.
[0034]
  Among the plurality of weeding tools 11, the weeding tool 11 located on the outermost side of the machine body divides the culm to be planted into a culm that is to be harvested and is not to be reaped, The part is introduced into the raising path R adjacent to the grass tool 11, and cereals that are not to be cut are caused to be guided to the lateral outside of the path R. The other weeding tools 11 weed cereals to be planted on the two planting strips on both sides of the weeding tool 11 and introduce them into the raising path R on both sides of the weeding tool 11.
[0035]
  Each of the plurality of raising devices 12 is supported at the lower end side by a bracket 17 fixed to the weed bar 15 as shown in FIG. 6, and the upper end side extends over all of the plurality of raising routes R as shown in FIG. The cause case 12a supported by the one cause drive case 30 located laterally through the distribution transmission case 31, the chain sprocket 12b located on the lower end side inside the cause case 12a, and the chain located on the upper end side An endless chain 12d wound around the sprocket 12c is used. When the chain sprocket 12c on the upper end side is driven, the chain sprocket 12c causes the chain 12d to rotate, and the cause claw 12e provided at a plurality of positions of the chain 12d causes the cause side on the lateral end side of the case 12a. The nail tip side protruding from the case 12a and projecting toward the path R rises while acting on the cereal, and when it reaches the rising end, it comes off the cereal and enters the return side of the case 12a. Lower the return side and cause it to return to the side. As a result, each trigger device 12 causes the planted culm introduced into the path R where the trigger device 12 is located to be moved up by the trigger claws 12e and processed and supplied to the reaping device 13.
[0036]
  The mowing device 13 includes a single fixed blade that has a length in the horizontal direction of the body over the plurality of raising paths R and is fixed to the mowing part frame, one end side and the other end side of the fixed blade, It consists of a pair of left and right movable blades that are slidably positioned on the upper surface side of the fixed blade, so that the left and right movable blades slide back and forth with respect to the fixed blade in a state where they are separated from each other or approach each other. To cut the stock of the planted culm from each triggering device 12.
[0037]
  As shown in FIG. 2, FIG. 4, FIG. 5, etc., all of the three packer devices P1, P2, and P3 are located in line with the transverse direction of the machine body near the upper portion of the mowing device 13, and are engaged and rotated. A pair of cereal scraping rotary packers 18, 18, and the stock side of the two reaped grain culms cut by the mowing device 13 is scraped between the rotary packers 18, 18 from between the packers. Send it out backwards.
[0038]
  Of the three packer devices P1, P2 and P3, the first packer device P1 located on the right side of the machine body and the third packer device P3 located on the left side of the machine body have these rotary packers 18 at the same arrangement level. The second packer device P2, which is arranged so as to be located, is positioned so that both the rotary packers 18 are located at a higher level than the rotary packers 18 of the first and third packer devices P1, P3. In addition, a part of the outer peripheral side of the rotary packer 18 adjacent to the third packer apparatus P3 of the second packer apparatus P2 is a part of the outer peripheral side of one rotary packer 18 of the third packer apparatus P3. Are arranged so as to overlap in the vertical direction of the aircraft. That is, while the rotary packers 18 of the three packer apparatuses P1, P2, and P3 have the same outer diameter, the rotary packer 18 of the second packer apparatus P2 is replaced with the rotary packer 18 of the first packer apparatus P1. In addition, the packer devices P1, P2, and P3 are arranged so as not to mesh with the rotary packer 18 of the third packer device P3.
[0039]
  As shown in FIG. 2 and the like, the cereal conveyance device A includes a plurality of grains in which the conveyance end side is located above the three packer devices P1, P2, and P3 and the plurality of rotary packers 18, respectively. The conveying side extends along an endless conveying belt 19 for pestle-carrying conveyance and a first culm conveying path including a plurality of pestle clamping rails 20a from the first packer device P1 to the threshing feed chain 4a of the threshing device 4. The three endless rotating chains 21a, 21b, 21c for holding and transferring the stock stock, the one endless rotating chain 22 for tip-locking conveyance, the conveying side being along the first grain haul conveying path, and the first The endless rotation chain 23 for stock holding and transporting, the transport side of which is along the second grain culm transport path provided with the grain squeeze sandwiching rail 20b extending from the two packer device P2 to the middle of the first corn straw transport path, Second grain transporter Endless rotating chain 24 for tip-locking conveyance along the path on the conveying side, and a third culm comprising a pestle clamping rail 20c extending from the third packer device P3 to the middle of the first culm conveyance path An endless rotating chain 25 for stock holding and conveying along the conveying path along the conveying path, and an endless rotating chain 26 for tip-locking conveying along the conveying side along the third cereal conveying path. Thereby, the cereal conveying apparatus A conveys the reaped cereals for the six strips that have been reaped by the reaping apparatus 13 as follows.
[0040]
  That is, among the six reaping cereals harvested by the reaping device 13, the stocker side of the two reaping cereals located on the right side of the machine body is the first packer device P1 and the first packer device P1. A pair of endless conveyor belts 19 positioned above endlessly act to pinch and convey the harvested cereals fed to the starting end of the first cereal conveyance path from the reaping device 13 to the stock source side. When the rotary chains 21a, 21b and the endless rotary chain 22 that engages and conveys the tip end are conveyed in a vertical position toward the threshing feed chain 4a and reach the conveyance end portion, the endless rotary chain 21c By holding and conveying the stock side and pulling the tip side into the body by the endless rotating chain 22, the tip side is placed in a sideways posture where it is located on the inside of the body. Supplied to the starting end of the feed chain 4a.
  Of the six reaped cereals harvested by the reaper 13, the stocker side of the 2 reaper cereals located in the center of the machine body is placed above the second packer device P2 and the second packer device P2. Endless rotation that acts by pinching and transporting the harvested cereal mash that has been scraped toward the rear of the machine body from the reaping device 13 by the pair of endless transport belts 19 and fed to the starting end of the second cereal transport path. The chain 23 and the endless rotating chain 24 that engages and transports the tip end side are fed into the portion where the intermediate portion on the transport side of the endless rotating chain 21a of the first cereal conveying path is positioned and the endless rotating chain 21a, 22 is merged with the harvested cereal meal from the first packer device P1 conveyed by the first packer device P1, and the endless rotating chains 21a, 21b, 21c, 22 are used to harvest the first packer device P1. Supplied from the change attitude to the starting end of the threshing feed chain 4a next to fallen attitude along with the culm.
  Of the six reaped cereals that the mowing device 13 has reaped, the stock side of the two reaped cereals located on the left side of the machine body is placed above the third packer device P3 and the third packer device P3. Endless rotation that acts by pinching and transporting the harvested cereals fed to the starting end portion of the third cereal conveying path by the pair of endless conveying belts 19 that are scraped from the reaping device 13 toward the rear of the machine body. The endless rotating chains 21a, 22 are fed by feeding the chain 25 and the endless rotating chain 26 that engages and conveys to the tip of the chain to the portion where the conveying terminal portion of the endless rotating chain 21a of the first cereal conveying path is located. The first and second packer devices are joined by the endless rotating chains 21a, 21b, 21c, 22 by joining the harvested cereal meals from the first and second packer devices P1, P2 to be conveyed. 1, supplied from the position change in the transverse inclination posture beginning threshing feed chain 4a with harvesting culms from P2.
[0041]
  As shown in FIG. 7 to FIG. 11 and the like, the raising drive case 30 includes two rectangular steel pipes provided with a plurality of output holes 32 arranged in the axial direction of the steel pipe on one side of the general structural square steel pipe. The flange 33 attached to the end of each steel pipe is connected to one straight steel pipe by tightening connection with a connecting bolt. A trigger transmission case 35 having a connecting bracket 34 attached to one end of one of the steel pipes and a lower end side connecting the input portion of the trigger drive case 30 to one end side of the output cylinder portion 14b of the transmission case 14 A support column that is connected to the upper end side of the other steel pipe and that is made of a connecting bracket attached to one end side of the other steel pipe, and a mounting portion 36 of the drive case 30 is erected on the other end side of the output cylinder portion 14b of the transmission case 14 37, by connecting to the upper end side of 37, the raising drive case 30 is positioned above the plurality of raising paths R and supported by the cutting part frame, and the transmission is transmitted from the engine located in the driving part of the traveling machine body. The rotational force transmitted to the input cylinder part 14a of the case 14 and output from the output cylinder part 14b of the transmission case 14 Serial input to the drive case 30 caused by the transmission case 35 causes, by transmitting and distributing the plurality of causes device 12 from causing drive case 30, are then to drive the respective causes device 12.
[0042]
  That is, as shown in FIG. 7 and the like, a drive shaft 39 created by connecting two hexagonal shafts to one linear hexagonal shaft by a joint member 38 is provided inside the raising drive case 30. is there. Bevel gears 40 and 41 are externally fitted at a plurality of positions in the axial direction of the drive shaft 39, andLeThe gears 40 and 41 are engaged with the drive shaft 39 so as to be rotatable together because of the hexagonal shape of the drive shaft 39. Of the plurality of bevel gears 40, 41, the input bevel gear 40 located at one end of the drive shaft 39 constitutes a transmission mechanism located inside the raising transmission case 35 and causes the transmission case 35. Is engaged with the output gear 42a of the raising transmission 42. As a result, the rotational force output from the output cylinder portion 14 b of the transmission case 14 is caused and is transmitted to the drive shaft 39 of the drive case 30 after being shifted to a predetermined drive speed by the transmission device portion 42.
[0043]
  As shown in FIGS. 9 and 11, each of the distribution transmission cases 31 interposed between the upper ends of the plurality of raising devices 12 and the raising drive case 30 is made of an aluminum alloy cast case. The drive unit 30 is attached over an output part provided with the output hole 32 of the trigger drive case 30 and an input part provided with the chain sprocket 12c of the trigger device 12, and the drive shaft 39 includes the drive unit 39. An input gear 43a meshing with one of the plurality of output bevel gears 41, a rotation transmission shaft 43 having one end connected to the input gear 43a so as to be integrally rotatable, and the other end of the rotation transmission shaft 43 One end side is interlocked to the side via a gear mechanism 44, and the other end side is caused to support the chain sprocket 12c of the device 12 so as to be integrally rotatable. A sprocket support shaft to and a distribution transmission mechanism consisting of the output shaft 45 of the alternate. Thereby, each distribution transmission case 31 connects the input part of one triggering device 12 and one output hole 32 of the triggering drive case 30 corresponding to this triggering device 12, and transmits the rotational force of the drive shaft 39. The input drive 43 is input by the input gear 43a and output to the chain sprocket 12c by the output shaft 45. The trigger drive case 30 causes the rotational force of the drive shaft 39 to be input from the plurality of output holes 32 to the input portions of the plurality of trigger devices 12. And distributed to the chain sprocket 12c of the input portion through the distribution transmission case 31.
[0044]
  As shown in FIG. 7, spacers 46 and 47 made of a round pipe material are externally fitted at a plurality of locations on the drive shaft 39. Among the plurality of spacers 46, 47, the length of the spacer 46 positioned between the bevel gears 41 is such that both ends of the spacer 46 abut against the bevel gear 41, and the bevel gears 41 on both ends distribute the distance between the bevel gears 41. The length of the spacer 47 that is positioned between the bevel gear 41 and the joint member 38 is set to a length that is set to an interval that appropriately meshes with the input gear 43 a of the transmission case 31, and one end of the spacer 47 is connected to the joint member 38. The other end abuts on the bevel gear 41, and the distance between the joint member 38 and the bevel gear 41 is set to a length that allows the bevel gear 41 to properly mesh with the input gear 43a of the distribution transmission case 31. That is, the drive shaft 39, the bevel gears 46 and 47, and the bearing 48 are raised and assembled to the drive case 30 by the assembling method shown in FIGS.
[0045]
  That is, as shown in FIG. 15 (a), the hexagonal shaft 39a constituting the one end side portion of the drive shaft 39 is set in a state where the bevel gear 41, the spacer 46, and the bearing 48 are mounted, and the one end side portion of the drive case 30 is raised. Is inserted into the steel pipe 30a. As shown in FIG. 15 (b), when the bearing 48 hits a bearing holder 49 as shown in FIGS. 13 and 14 attached to the inner surface side of the steel pipe 30a, it is a cylindrical type that is externally fitted to one end side of the square shaft 39a. The driving jig 50 is put into contact with the bevel gear 41 located at the end, and the driving operation is performed on the other bevel gears 41 via the spacers 46. The steel pipe 30a is fixed to a predetermined assembly position by being press-fitted into a bearing receiving portion 49a formed of a bulging portion toward the circumferential surface.
  As shown in FIG. 16 (c), the angular shaft 39 b constituting the other end portion of the drive shaft 39 is mounted with the joint member 38, the bevel gear 41, the spacers 47 and 46, and the bearing 48, and the drive case is caused. It inserts in the steel pipe 30b which comprises the other end side part of 30. FIG. As shown in FIG. 16 (d), when the bearing 48 comes into contact with the aligning holder 49 attached to the inner surface side of the steel pipe 30b, the cylindrical driving jig 50 fitted on one end side of the square shaft 39b is the end. The bevel gear 41 located at the position of the bevel gear 41 is driven and driven, and this driving force acts on the other bevel gear 41 via the spacer 46, so that each bearing 48 is press-fitted into the bearing receiving portion 49a of the bearing holder 49. It fixes to the predetermined assembly position of 30b. Next, as shown in FIG. 16 (e), another output bevel gear 41, an input bevel gear 40, and a bearing 48 are assembled to one end portion of the square shaft 39b, and the square shaft 39b, the bevel gear 40, 41, the assembly of the bearing 48, etc. is completed.
  Next, as shown in FIG. 16 (f), the flanges 33 of both the steel pipes 30a and 30b are connected to each other, and the drive case 30 is obtained. At this time, the end of one angular shaft 39 a and the joint member 38 provided on the other angular shaft 39 b are matched and connected, and the two angular shafts 39 a and 39 b are connected to the drive shaft 39. At the same time, the drive shaft 39, all the bevel gears 40 and 41, and the bearing 48 are caused to obtain a state where the drive case 30 is assembled at a predetermined assembly position.
[0046]
  Each of the plurality of distribution transmission cases 31 is connected to the drive case 30 by the connection structure shown in FIG.
  That is, a connecting end portion having a step is provided at the input side end portion of the distribution transmission case 31, and a small diameter end portion 31 a at the connecting end portion is caused to enter the output hole 32 of the drive case 30. is there.
  An O-ring 51 externally fitted to the end 31a of the distribution transmission case 31 is provided between the connecting portion of the distribution transmission case 31 and the trigger drive case 30, and the connection portion of the distribution transmission case 31 and the trigger drive case are provided. The gap with 30 is sealed to prevent dust and the like from entering.
  A support member 52 having a case insertion hole 52a concentric with the output hole 32 of the drive case 30 is attached to the drive case 30, and a support portion 52b having the case insertion hole 52a of the support member 52 is provided. Therefore, the distribution transmission case 31 is supported at a location away from the output hole 32 of the drive case 30 by the cause. That is, the distribution transmission case 31 is caused to tilt with respect to the drive case 30, or the end 31a of the distribution transmission case 31 is caused to enter the drive case 30 too much, resulting in poor meshing between the input gear 43a and the output bevel gear 41. It is received and supported so that it does not occur.
[0047]
    [Another embodiment]
  FIG. 17 shows a reaping portion provided with another embodiment. This reaping portion includes four triggering paths arranged in the lateral direction of the fuselage, and four actuating and acting on the culms of the four triggering paths. The trigger device 12 is provided with a lateral trigger drive case 30 located over all of the four trigger paths.
[0048]
  The trigger drive case 30 is formed by one square steel pipe provided with a plurality of output holes 32 arranged in the axial direction of the steel pipe on one side of the general structural square steel pipe. Is connected to one end of the output cylinder portion of the cutting portion frame configured in the same manner as the cutting portion frame, and is connected to the upper end side of the trigger transmission case 35, and the bracket is attached to the middle portion of the driving case 30. An attachment path 36 is formed by connecting an attachment part 36 formed by attaching and an attachment part 36 formed by attaching a bracket to the other end of the raising drive case 30 to the upper end side of the support column 37 erected on the cutting part frame. Is supported by the mowing unit frame in a state of being located above and output from the output tube portion of the mowing unit frame. The transmission case 35 causes the rotational force, is arranged to transmit to the drive shaft 39 located inside the lead drive case 30.
[0049]
  The plurality of output holes 32 of the drive case 30 are individually connected to the input portions of the four drive devices 12 by a distribution transmission case 31 similar to the distribution transmission case 31. As a result, the drive shaft case 30 distributes the rotational force of the drive shaft 39 from the plurality of output holes 32 to the four drive devices 12 via the distribution transmission case 31, and the drive chain of the drive device 12 is driven. It is transmitted to the sprocket 12c.
[0050]
  The drive shaft 39 is formed by a single hexagonal shaft extending over its entire length. As a result, the input bevel gear 40 that is engaged so as to engage with the output gear 42 a of the transmission case 35 and transmit the rotational force of the output gear 42 a to the drive shaft 39 is also input to the plurality of distribution transmission cases 31. Due to the hexagonal shape of the drive shaft 39, the plurality of output bevel gears 41 that are externally fitted to the drive shaft 39 so as to mesh with the gear 43a and transmit the rotational force of the drive shaft 39 to the input gear 43a are also provided. The drive shaft 39 is engaged with the drive shaft 39 so as to be integrally rotatable.
[0051]
  A spacer 46 formed of a cylindrical body is fitted between two bevel gears of the drive shaft 39. The length of each spacer 46 is set such that both ends of the spacer 46 abut against the bevel gear 41, and the interval between the bevel gears 41 is set so that the bevel gears 41 on both ends appropriately mesh with the input gear 42 of the distribution transmission case 31. Length is set. As a result, the drive case 30 can be produced by assembling the drive shaft 39, the bevel gears 40 and 41, and the bearing 48 to the steel pipe by the assembling method shown in FIGS.
[0052]
  FIG. 18 shows a case connection structure including another embodiment, which is formed so as to enter the output hole 32 of the drive case 30 and is provided at the input side end of the distribution transmission case 31. The connecting end portion 31a is provided. Between the end 31 a of the distribution transmission case 31 and the raising drive case 30, an annular rubber seal 53 that is externally fitted to the end 31 a is provided.
[Brief description of the drawings]
FIG. 1 is a side view of the front part of a combine.
[Fig. 2] Plan view of the grain feeder
[Fig. 3] Front view of the cutting part
[Fig. 4] Cross section of transmission case
FIG. 5 is a plan view of a cutting part frame.
FIG. 6 is a cross-sectional view of the lower part of the trigger device
FIG. 7 is a sectional view of a drive case for raising
[Fig. 8] Cross section of the drive case
FIG. 9 is a cross-sectional view at the steel pipe connecting portion of the raising drive case.
FIG. 10 is a cross-sectional view of the end portion of the drive case
FIG. 11 is a sectional view of a distribution transmission case
FIG. 12 is a cross-sectional view of the connecting portion of the distribution transmission case and the trigger transmission case
Fig. 13 Cross section of bearing holder
FIG. 14 is a cross-sectional view of a drive holder case at a bearing holder arrangement portion of a drive case
FIG. 15 is an explanatory view of the assembly procedure of the drive case
FIG. 16 is an explanatory diagram of the assembly procedure of the drive case
FIG. 17 is a cross-sectional view of a trigger drive case with another embodiment
FIG. 18 is a cross-sectional view of a connecting portion of a distribution transmission case and a trigger drive case provided with another embodiment
FIG. 19 is a schematic diagram of a conventional drive case.
FIG. 20 is a schematic diagram of a conventional drive case.
[Explanation of symbols]
12 Triggering device
30 Drive case
31 Distribution transmission case
31a End of distribution transmission case
32 output hole
35 Triggering transmission case
39 Drive shaft
46 Spacer
51,53 Sealing material
52 Support members
R Cause route

Claims (3)

A harvesting part structure of a harvesting harvester comprising a plurality of raising paths arranged in the transverse direction of the machine body and a plurality of raising devices acting individually on the grains of the plurality of raising paths,
A trigger drive case made of steel pipes located laterally above the plurality of trigger paths and having output holes at a plurality of locations in the axial direction, and connected to one end side of the trigger drive case. A trigger transmission case for transmitting the rotational force to the drive shaft located inside the drive case;
A plurality of distribution transmission cases that are individually connected to the plurality of output holes of the drive case and transmit the rotational force of the drive shaft to the input portions of the drive devices, respectively.
The distribution transmission case includes an input rotary transmission shaft so as to draw power in a direction intersecting the drive shaft in the drive case, and an input side end portion of the distribution transmission case causes the cause. It is configured to enter into the output hole of the drive case and cause it to be connected to the drive case,
Further, the trigger drive case is provided with a support member for supporting a distribution transmission case arranged with an end portion inserted in the output hole of the trigger drive case, and supporting the trigger drive case on the outside of the trigger drive case,
The support member is configured to support the distribution transmission case at a position away from the output hole in a direction along the axis of the input rotation transmission shaft incorporated in the distribution transmission case. A cutting part structure of a harvesting and harvesting machine comprising a case insertion hole that is supported in a state where the distribution transmission case is inserted at a position away from the output hole in a direction along the line .   2. The harvesting part structure of a harvesting and harvesting machine according to claim 1, further comprising a sealing material that seals between the distribution transmission case and the raising drive case.   A plurality of bevel gears for individually transmitting the rotational force of the drive shaft to the plurality of distribution transmission cases are fitted on the drive shaft, and the plurality of bevel gears are engaged with the plurality of bevel gears so as to be integrally rotatable. 3. A spacer that is formed by a square shaft that fits and is externally fitted between the bevel gears of the drive shaft and has both ends abutting against the bevel gear to set the interval between the bevel gears to a predetermined interval. Harvesting part of the harvesting machine.

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