KR101322254B1 - Combine - Google Patents

Abstract

The combine which is equipped with the grain stem conveying apparatus in the harvesting pretreatment apparatus provided in the front part of a traveling body WHEREIN: It is a subject to improve the maintenance property of a harvesting pretreatment apparatus by reducing the effort of installation and removal of a grain stem conveying apparatus. One example of the present invention is a standing grain sprocket case 22 that includes a standing drive sprocket, a tension sprocket, a driven roller, an endless chain 67 to which a standing tine 21 is attached, a front cover 61, a back cover 63, and the like. Unitize as. In this case, the spline part of the standing drive shaft 46 is spline-fitted with the spline hole of the standing side bevel gear 83 built in the standing case 71. The upper rear surface of the grain stem standing case 22 and the standing gear case 71 are fastened by fasteners.

combine

Description

Combine {COMBINE}

The present invention relates to a combine equipped with a grain stem conveying device for standing uncut cereal grain stem in a harvesting pretreatment device installed in the front part of a traveling gas or conveying the harvested grain stem toward the threshing apparatus on the traveling gas. It is about.

In general, the traveling gas of the combine is provided with a plurality of horizontally-rotating grain stem standing cases disposed along the transverse direction intersecting with the traveling direction of the traveling gas in the harvesting pretreatment apparatus provided in the front part thereof. Each of these grain stem standing cases is attached via the bevel gear case to the front end (upper end) of an upright obliquely upright inclined drive pipe which is a component constituting the framework of the harvesting pretreatment device (see Patent Document 1, for example).

Each grain stem standing case is provided with a plurality of rising tines which rotate around the outer circumferential side portion from the lower side of the acting side to the upper side of the transverse side in an outwardly protruding position. These standing tines are attached to the standing drive sprocket and tension sprocket provided on the upper side in the grain standing case, and the stepless chain wound around the driven roller provided on the lower side so as to be capable of swinging at appropriate intervals.

On the other hand, the bevel gear case has a standing side bevel gear having a drive shaft which penetrates the back plate of the standing grain case and is connected to a drive sprocket in the standing grain case, and a pipe side connected to an upper end of the standing transmission shaft in the standing drive pipe. Bevel gears are integrated with each other.

In this case, the standing drive sprocket in the grain stem standing case rotates around the standing drive shaft with the power transmitted from the standing transmission shaft in the standing drive pipe to the standing drive shaft via both bevel gears. As a result, the plurality of standing tines attached to the endless chain are rotated along the outer circumferential side of the grain stem standing case.

Patent Document 1: Japanese Patent Publication No. 2003-79220

By the way, when installing the conventional grain stem standing case to the harvesting preprocessing apparatus, the following procedure was followed, for example. First, the standing drive sprocket is fitted to the standing drive shaft protruding outward from the bevel gear case through the back plate of the grain stem standing case, and then the back plate and the bevel gear case are fastened. Subsequently, the standing drive sprocket provided on the inner surface side (front face side) of the back plate and the endless chain having the standing tines attached to the driven roller are wound, and then the expansion state of the endless chain is adjusted by the tension sprocket. The front plate covering the standing drive sprocket, the driven roller, and the endless chain is fixed to the rear plate by covering it from the front.

However, in the above-described conventional configuration, if the above steps are not followed in the manufacture of the combine, the grain stem standing case cannot be installed, and thus there is a problem that the installation man-hour in the production line increases, resulting in a cost increase. In addition, since the back plate of the grain stem standing case and the bevel gear case must be realigned every time the grain stem standing case is installed, or the expansion state of the stepless chain must be adjusted again. There was a problem that maintenance work was troublesome. This problem was common not only to the grain stem standing case but also to the grain stem conveyance apparatus for conveying harvested grain stem toward the threshing apparatus on a traveling body.

Therefore, a technical object of this invention is to reduce the effort of installation and removal of grain stem conveying apparatuses, such as a grain stem standing case and a grain stem conveyance apparatus, and to improve the maintainability of a harvesting pretreatment apparatus.

In order to achieve this technical problem, the invention of claim 1 is a combine in which a grain culm feeder is provided in a harvesting pretreatment device provided in the front part of a traveling body, wherein the grain stem feeder is wound around at least two electric cars and these electric cars. An endless belt with a tine attached to the case body is unitized, and a male fitting body installed on one of the grain stem conveying device and a power transmission unit thereof, and a female shape provided on the other side. The fitting member is configured to be capable of power transmission and to be detachably fitted, and the grain stem conveying device is detachably fastened to the power transmission unit.

In the combine of Claim 1, the male fitting body is a drive shaft fixed to one of the said electric vehicles, The said drive shaft is axially rotatably supported by the said case body, and is outward from the said case body. And the female fitting are transmission gears having insertion holes among the gear mechanisms built in the power transmission portion, and the front end of the drive shaft is slidably integrally rotated with respect to the insertion holes of the transmission gears. Is inserted.

In the combine of Claim 1 or 2, the invention of Claim 3 is that the said case body and the said power transmission part are fastened by the fastening means screwed toward the back surface of the said case body from the said power transmission part side.

In the combine of any one of Claims 1-3, the said grain stem conveyance apparatus is a grain stem standing case which protrudes a standing tine in the horizontal direction which cross | intersects the traveling direction of the said traveling body.

According to a fifth aspect of the present invention, in the combine according to claim 4, the grain stem standing case is provided in plural numbers at appropriate intervals along a width direction intersecting with a traveling direction of the traveling body, and further, a driving force is transmitted to the grain stem standing case. And a standing gear case for connecting the grain stem standing case and the standing drive pipe. A flange body is fixedly installed at one end of the standing drive pipe, and the flange body is attached to the flange body. The first fitting surface which can contact the flange side fitting surface in this is formed, The said flange body of the said standing gear case and the said standing drive pipe is detachably detachable in the state which made the said 1st matching surface and the said flange side fitting surface contact. It is fastened.

According to a sixth aspect of the present invention, in the combine according to claim 5, the standing gear case is provided with a second fitting surface that is in contact with the case fitting surface in the grain stem standing case, and the standing gear case and the grain standing case are The second fitting face and the case fitting face are detachably fastened in a state of being in contact with each other.

According to a seventh aspect of the present invention, in the combine according to claim 5 or 6, the engagement direction of the standing gear case and the flange body or the grain stem standing case is set to the alignment surface of the standing gear case and the case alignment surface or the flange side alignment. Is approximately coincident with the alignment direction of the face.

In the combine of any one of Claims 5-7, the said standing gear case has the 1st shaft hole which arrange | positions the main bevel gear which fits through the spline to the standing transmission shaft of the said standing drive pipe, A second shaft hole is formed in the standing drive shaft of the grain stem standing case for arranging a driven bevel gear fitted through a spline, wherein the driven bevel gear and the driven bevel gear with bearing bearings respectively include the first shaft hole and the first shaft hole. It is arrange | positioned so that attachment and detachment of each bearing accommodation part of a biaxial hole is carried out, respectively.

According to a ninth aspect of the present invention, in the combine according to claim 8, the main bevel gear and the driven bevel gear cantilever through one bearing bearing in each bearing accommodation portion of the first shaft hole and the second shaft hole. It is arranged in each state.

According to a tenth aspect of the present invention, in the combine of claim 8 or 9, in the standing gear case, the second shaft hole for inserting the standing drive shaft of the grain stem standing case is formed so as to penetrate the standing gear case in a straight line. The driven bevel gear is detachably attached through an inlet on the opposite side to an insertion hole into which the standing drive shaft is inserted among the second shaft holes.

(Effects of the Invention)

According to the invention of claim 1, the grain stem conveying apparatus provided in the harvesting pretreatment apparatus is unitized by installing at least two electric vehicles and an endless belt with a tine wound on these electric vehicles, and being unitized. The male fitting installed in one of the power transmission unit and the female fitting installed in the other are configured to be capable of power transmission and detachably fitting, and the grain stem conveying device is detachably fastened to the power transmission unit. Thus, for example, in installing the grain stem conveying apparatus in the harvesting pretreatment apparatus, the male stem fitting and the female fitting may be fitted, and then the grain stem conveying apparatus may be fastened to the power transmission unit. In this case, the endless belt of the grain stem conveying apparatus is driven by the driving force via the power transmission unit and the male fitting body.

On the contrary, in separating the grain stem conveying apparatus, after disconnecting the grain stem conveying apparatus and the power transmission unit, the grain stem conveying apparatus may be pulled out and the male fitting body may be pulled out from the female fitting body.

Therefore, if the structure of Claim 1 is employ | adopted, in the manufacture of a combine, after a grain stem conveying apparatus is assembled beforehand, the said grain stem conveying apparatus can be attached to the said mowing preprocessing apparatus as a unit. Thereby, the labor of installing the said grain stem conveyance apparatus in a combine manufacturing line can be reduced, and the effect which can contribute to reduction of a manufacturing cost is exhibited. In addition, the labor of installing and removing the grain stem conveying device is remarkably reduced, so that maintenance work such as cleaning and maintenance in the harvesting pretreatment device is easy.

According to the invention of claim 2, since the distal end portion of the drive shaft as the male fitting body is slidably inserted to rotate integrally with respect to the insertion hole of the transmission gear as the male coupling member, the grain stem conveying device and the power transmission unit unitized. The power from the power transmission unit can be reliably transmitted to one of the electric vehicles through the transmission gear and the drive shaft without impairing the ease of detachment.

According to the invention of claim 3, since the case body and the power transmission part are fastened by fastening means screwed toward the rear surface of the case body from the power transmission part side, it is attached to the power transmission part of the grain stem conveying device. The effect that the separation operation can be easily performed is achieved.

According to the invention of claim 4, since the grain stem conveying device is a grain stem standing case which protrudes the standing tines in the transverse direction crossing with the traveling direction of the traveling body, the grain stem standing case can be easily installed or detached in units of units. As a result, maintenance work such as cleaning and maintenance in the harvesting pretreatment device is made easy.

According to the invention of claim 5, the flange body is fixed to one end side of the standing drive pipe for transmitting the driving force to the grain standing surface case, the standing gear case for connecting the grain stem standing case and the standing drive pipe to the flange body. The first fitting surface which is in contact with the flange side fitting surface in this is formed, and it is detachable in the state which the said standing gear case and the said flange body of the said standing drive pipe made contact with the said 1st alignment surface and the said flange side fitting surface. Since it is fastened, the standing drive pipe and the standing gear case can be connected with high precision by a simple positioning operation, and the assembling work or disassembly work of the said grain stem standing case and the standing gear case can be simplified.

According to the sixth aspect of the present invention, the standing gear case is provided with a second fitting surface that is in contact with the case fitting surface of the grain stem standing case, and the standing gear case and the grain stem standing case are the second fitting surface and the Since it is detachably fastened in a state where the case fitting surface is in contact, the standing gear case and the grain standing case can be connected with high precision by a simple positioning operation, so that the assembly work of the grain standing case and the standing gear case or the like or Disassembly work can be simplified.

According to the invention of claim 7, the engagement direction between the standing gear case and the flange body or the grain standing case is substantially coincident with the alignment direction of the alignment surface of the standing gear case and the case alignment surface or the flange side alignment surface. Therefore, the operation of coalescing the standing gear case and the flange body or the grain stem standing case and the screwing operation of the bolt as the fastening means can be performed easily, and the assembly and disassembly workability can be improved.

According to the eighth aspect of the present invention, the standing gear case includes a first shaft hole for arranging a driving bevel gear fitted to the standing transmission shaft of the standing drive pipe via a spline, and a standing drive shaft of the grain stem standing case via a spline. A second shaft hole for positioning the driven bevel gear is formed, and the main bevel gear and the driven bevel gear each having bearing bearings are detachable from the respective bearing accommodation portions of the first shaft hole and the second shaft hole. Since it is arrange | positioned so that only the said standing gear case and the said bevel gear can be comprised easily, the assembly work | work or disassembly work of the said grain stem standing case, the said standing gear case, etc. can be simplified.

According to the ninth aspect of the present invention, since the main bevel gear and the driven bevel gear are disposed in a cantilever state through one bearing bearing, respectively, in the bearing accommodation portions of the first shaft hole and the second shaft hole. The length in the axial direction of the main bevel gear and the driven bevel gear can be shortened, so that the standing gear case constituted of the unit can be formed compactly and lightly.

According to the invention of claim 10, in the standing gear case, the second shaft hole for inserting the standing drive shaft of the grain stem standing case is formed to penetrate the standing gear case in a straight line, and the driven bevel gear is the second Since the shaft hole is detachably attached through an inlet on the opposite side of the insertion hole into which the standing drive shaft is inserted, the standing drive shaft and the standing drive shaft are connected to each other through the main bevel gear and the driven bevel gear. Can be. For this reason, compared with the structure which connects the standing transmission shaft and the standing drive shaft in series, the standing gear case can be formed more compactly.

1 is a left side view of a combine.

2 is a plan view of the combine.

3 is a front view of the combine.

4 is a plan view of the harvesting pretreatment apparatus.

5 is a side view of the harvesting pretreatment apparatus.

6 is a skeleton diagram showing a power transmission system of the harvesting pretreatment apparatus.

It is a schematic front view which shows the inside of a center grain stem standing case.

8 is a schematic perspective view of the center grain stem standing case and the left grain stem standing case viewed from the rear.

9 is a schematic plan view of the center grain stem standing case and the left grain stem standing case.

10 is a schematic perspective view of a standing drive pipe or the like.

11 is a schematic perspective view of the front side of the left and right standing gear cases.

12 is a schematic perspective view of the rear side of the left and right standing gear cases.

13 is a cross-sectional side view of the left and right standing gear cases.

It is a schematic perspective view of the front side of a center standing gear case.

It is a schematic perspective view of the back side of a center standing gear case.

16 is a cross-sectional side view of the central standing gear case.

It is a schematic perspective view of the lower end side of a standing drive pipe.

18 is a cross-sectional side view of the lower end of a standing drive pipe.

19 is an exploded perspective view illustrating a connection structure between the vertical transport case and the vertical drive shaft.

(Explanation of Symbols)

1: driving gas 3: harvesting pretreatment

13: Grainer standing device 14: Graining device

22a, 22b, 22c: standing grain case 39a, 39b, 39c: standing drive pipe

44a, 44b, 44c: standing drive shaft 46a, 46b, 46c: standing drive shaft

47: standing drive sprocket 61: front cover

62: surrounding wall 63: back plate

64: tine groove 66: driven roller

67: stepless chain 71a, 71b, 71c: standing gear case

72, 102: flange 73, 103: flange side fitting surface

75,105: First alignment surface 78,108: Second alignment surface

79,109: Case fit face 82,112: Driven bevel gear

83,113: driven bevel gear 84,114: gear mechanism

EMBODIMENT OF THE INVENTION Below, embodiment which actualized this invention is described based on drawing (FIGS. 1-19). In the following description, the direction crossing the traveling direction of the traveling body 1 will be referred to as a transverse direction.

First, the whole structure of a combine is demonstrated, referring FIGS. 1-3.

The three-row harvesting combine in this embodiment is equipped with the traveling body 1 supported by the pair of left and right traveling crawlers 2 and 2. In the front part of the traveling body 1, the harvesting pre-treatment apparatus 3 which receives while harvesting a grain stem is attached to the single-acting hydraulic cylinder 4 so that raising / lowering control is possible. The traveling body 1 is mounted side by side with the threshing apparatus 5 in which the feed chain 6 was installed, and the grain tank 7 which stores the grain after threshing. In this embodiment, the threshing apparatus 5 is arrange | positioned on the left side of the traveling direction of the traveling body 1, and the grain tank 7 is arrange | positioned on the right side of the traveling direction of the traveling body 1. As shown in FIG. The grain tank 7 is comprised so that horizontal rotation is possible about the vertical axis | shaft provided in the back part of the traveling body 1 (in the embodiment, the vertical auger barrel 9 of the discharge auger 8, see FIG. 1 and FIG. 2). A driver 10 having a steering lever, a driver's seat, and the like is provided between the mowing pretreatment device 3 and the grain tank 7. Below the driving unit 10, an engine 11 as a power source is disposed. The harvested grain stems harvested by the harvesting pretreatment device 3 are taken over by the feed chain 6 and conveyed, and are threshed by the threshing apparatus 5.

Below the feeding chamber in the threshing apparatus 5, a swing selection mechanism (not shown) and a wind blower fan for sorting the swings by a sudden rush or chaff sieve. (Wind) A wind sorting mechanism (not shown) for sorting is provided. Grains collected by these two sorting mechanisms and collected in the first accommodating trough (not shown) are integrated in the grain tank 7 through the first conveyor and the grain-shaped conveyor (not shown). The first article in the grain tank 7 is carried out to the outside through the discharge auger 8.

In addition, the waste straw handed over to the waste straw chain 18 (refer FIG. 2) from the rear end of the feed chain 6 is discharged to the rear of the traveling body 1 in a long state, or it is made into a suitable length with a waste straw cutter (not shown). After the short cut, it is discharged to the rear of the traveling body 1.

Next, the structure of the harvesting pretreatment apparatus is demonstrated, referring FIG. 4 and FIG.

The mowing pretreatment device 3 is a transversely long mowing input pipe 35 rotatably axially supported relative to a mowing stand (not shown) positioned in front of the threshing device 5 (see FIGS. 1, 4 and 5). It is comprised so that up-and-down rotation is possible around. In the middle part of the mowing input pipe 35, the longitudinal transmission pipe 36 extended downward obliquely forward is provided. The intermediate part of the longitudinal transmission pipe 36 and the front end of the traveling body 1 are connected via a single-acting hydraulic cylinder 4.

The horizontally long horizontal electric pipe 37 is provided in the front-end | tip part (lower end part) of the vertical electric pipe 36. As shown in FIG. Four cutting frames 38 protruding forwardly are provided in the transverse transmission pipe 37 at appropriate intervals along the longitudinal direction of the transverse transmission pipe 37. Below the group of harvesting frames 38, a towing device 12 of a hair clippers type is provided. A grass dividing body 15 protrudes from the tip end of each harvesting frame 38.

In addition, the horizontally driven pipes 37 are provided so that the standing drive pipes 39b, 39c, 39a at the center, left and right as three support pipes extend upward obliquely in accordance with the mowing assistant. The group of standing drive pipes 39b, 39c, 39a in the center, left and right are arranged at appropriate intervals along the longitudinal direction of the transverse transmission pipe 37 (the transverse width direction of the traveling body 1). At each leading end of the standing drive pipes 39b, 39c and 39a in the center, left and right sides, a grain stem standing device 13 for standing the uncut grain stems placed in the pavement is attached. In this embodiment, the grain stem standing device 13 for three sets is provided in the front part of the harvesting preprocessing apparatus 3. As shown in FIG. The grain stem conveying apparatus 14 is arrange | positioned between the grain stem standing apparatus 13 and the front end part of the feed chain 6. As shown in FIG.

The grain stem standing device 13 has a horizontally-rotating grain stem standing case 22 as a grain stem conveying device having the standing tines 21 for standing the uncut grain stem received through the herbaceous body 15, and these grain stem standing cases. It is comprised by the star wheel 23 and the gathering belt 24 arrange | positioned at the rear lower part of the 22. The star wheel 23 and the gathering belt 24 are for rearing the roots of the uncut grain stems standing up with the standing tines 21 corresponding to these sets. The root portions of the uncut grains gathered by these star wheels 23 and the gathering belts 24 are cut by the variegated towing apparatus 12.

The grain stem conveying apparatus 14 conveys the right lower conveyance chain 25 which conveys the right two grain harvesting grain stem to the rear at an oblique left side, and conveys the harvesting grain stem of the left one set diagonally to the right side, and its base part is carried out at the right lower conveyance chain ( 25 lower left conveying chain 27 to be joined near the transfer end position, right upper conveying tin 31 for conveying the tip ends of the right two-row cutting grains obliquely to the left, and harvesting grain stems for the left one set Of three trillion harvesting grain stems joined near the transfer end position of the upper left conveying tin 28 and the lower right conveying chain 27 for conveying the tip portion of the right rearward obliquely to the right upper conveying tin 31. It consists of a vertical conveying chain 30 for conveying the base part of the feeder 6 to the feed chain 6. The root portion of the three grain cutting grains sent to the longitudinal conveyance chain 30 is then taken over by the feed chain 6 and conveyed. And the tip part of this harvesting grain stem threshes in the barrel 17 in the barrel of the threshing apparatus 5.

Next, with reference to FIG. 6, the power transmission system of a combine is demonstrated. The power from the engine 11 to the cutting pretreatment device 3 is first harvested input shaft 41 built into the cutting input pipe 35 through a barrel input shaft, a cutting transmission mechanism (not shown in all), a cutting input pulley 40 and the like. Is delivered). The power transmitted to the mowing input shaft 41 is transmitted to the transverse transmission shaft 43 in the transverse transmission pipe 37 via the longitudinal transmission shaft 42 in the longitudinal transmission pipe 36, and then the transverse transmission shaft 43. From this, power is transmitted to the center, left and right standing motor shafts 44b, 44c, 44a and the towing drive shaft 45 built in the center, left and right standing drive pipes 39b, 39c and 39a. The power transmitted to the standing drive shafts 44b, 44c and 44a at the center, left and right sides is passed through the standing drive shafts 46b, 46c and 46a at the center, left and right sides and the standing sprocket 47 connected thereto. Each standing tin 21 of 13 is driven. The power transmitted to the towing drive shaft 45 drives the towing device 12.

Power is branched from the left and right standing drive shafts 44c and 44a to the left and right lower transfer drive shafts 48 disposed between the adjacent center, left and right standing drive shafts 44b, 44c and 44a. do. The power transmitted to the lower conveyance drive shaft 48 on the left side of the left in the lower conveyance chain 27 of the grain stem conveying apparatus 14 and the grain rest standing apparatus 13 through the left drive sprocket 49 connected to it. The star wheel 23 and the gathering belt 24 are driven. The power transmitted to the lower right conveying drive shaft 48 is the right and the middle in the lower right conveying chain 25 of the grain stem conveying apparatus 14 and the grain stem standing apparatus 13 via the right drive sprocket 49 connected to this. To drive the star wheel 23 and the collecting belt 24.

The power transmitted to the harvesting input shaft 41 is also branched to the vertical conveying chain 30, the right upper conveying tin 31, and the left upper conveying tin 28 of the grain stem conveying apparatus 14 via the vertical axis 50. Delivered.

Next, with reference to FIGS. 4-9, the outline of arrangement | positioning of the grain stem standing case group which comprises a grain stem standing apparatus is demonstrated.

The three-thick grain standing case 22 according to the present embodiment is arranged at an appropriate interval along the widthwise direction of the traveling body 1 with respect to the front part of the harvesting pretreatment device 3, respectively, upwardly obliquely upward. It is arranged by thought. Each grain stem standing case 22 is equipped with the standing tines 21 which make the uncut grain stem stand by rotating the outer periphery side part from the lower part of the acting side to the horizontal one side upper part with outward protrusion. That is, each grain stem standing case 22 of this embodiment is what is called a horizontal rotation type | mold. For convenience of explanation, in each of the following figures in FIG. 4 and subsequent figures, each of the grain stem standing cases 22 and its components are denoted by a, b, and c in order from the right side in the traveling direction of the traveling body 1.

5 and 9, a standing gear case 71 serving as a power transmission unit is provided at an upper end of each standing drive pipe 39 which is installed upright obliquely upward in a horizontal transmission pipe 37 (see FIG. 4). The upper back surface of the grain stem standing case 22 is fastened so that attachment or detachment is possible. The lower back surface of each of these grain stem standing cases 22 is detachably fastened to the inverted L-shaped branch frame 52 (refer to the dashed-dotted line in FIG. 8) provided upright on the harvesting frame 38 located below. .

The right grain stem standing case 22a which is located to the right of the traveling direction 1 of the traveling body 1, and the center grain stem standing case 22b which are located in the center are the transverse one side part of the action side which each standing tines 21a and 21b protrude. They are facing each other. On the other hand, the left grain stem standing case 22c as a single grain stem standing case located on the left side of the traveling body 1 in the traveling direction 1 opposes the right side on the working side to the left side on the non-acting side of the center grain stem standing case 22b. .

In other words, the arrangement relationship between the right grain stem standing case 22a and the center grain stem standing case 22b is set so that the protruding directions of the standing tines 21a and 21b may be left-right symmetrical. As for the left grain standing case 22c located on the opposite side to the right grain standing stand 22a with the center grain standing stand 22b in between, the standing grain 21c is the standing grain 22b of the center grain standing stand 22b. It is arranged to protrude in the same direction as).

Here, the action side of each grain standing case 22 means the area | region which the standing tines 21 return to the outwardly protruding state among the outer peripheral sides of the said grain stem standing case 22. As shown in FIG. The action side of the right grain stem standing case 22a is an area | region from the right end part in the vicinity of the lower part to the upper left part through a lower part. The action side of the center grain stem standing case 22b is an area | region from the left end part near the lower part to the upper right part through a bottom part. In addition, the acting side of the left grain stem standing case 22c is an area | region from the left edge part of the lower vicinity to the upper right side through the lower part similarly to the center grain stem standing case 22b. Therefore, the standing tines 21 of the grain stem standing cases 22 pass through the movement trajectory as shown by the dashed-dotted line in FIG.

The right grain stem standing case 22a and the center grain stem standing case 22b are arrange | positioned in parallel along the width direction of the traveling body 1 in parallel. From the front view, the space | interval TD1 is wide between the right grain stem standing case 22a and the center grain stem standing case 22b so that mutual standing tines 21a and 21b may not interfere. This interval TD1 corresponds to the inter-interval interval (about 300 mm) between the uncut grains in the package, and the right and center grain stem standing cases 22a and 22b are easy to function as a pair at the time of the grain stem (right for two trillion pairs). The breadth dimension is easy to stand a harvesting grain stem.

On the other hand, between the center grain stem standing case 22c and the left grain stem standing case 22c, the standing tines 21c of the left grain stem standing case 22c are inaction side in the center grain stem standing case 22b from a front view. The space | interval TD2 (TD2 <TD1) of the grade which does not contact the left side part of is widened.

That is, the left grain stem standing case 22c is attached to the center grain stem standing case 22b to such an extent that the standing tines 21c do not come into contact with the right side of the non-acting side in the center grain stem standing case 22b when viewed from the front. It is arranged in close proximity. Therefore, the distance TD2 between the center grain stem standing case 22c and the left grain stem standing case 22c when viewed from the front is a little longer than the protruding length of the standing tines 21c in the left grain stem standing case 22c. It is in the dimensions of. This interval TD2 also corresponds to the inter-gap interval between the uncut grains in the package, and the width of the left grained grain standing case 22c which is easy to function alone (easily to stand the left uncut grain stems for 1 trillion) at the time of grain stand. It is dimensioned.

In addition, the arrangement position of the left grain standing surface case 22c is such that the standing grain 21c and the standing grain standing 21b of the protrusion initial stage which appear from the left edge part of the lower part vicinity in the center grain stem standing case 22b do not interfere with each other. It is deviated by the distance RD behind the center grain stem standing case 22b (refer FIG. 4, FIG. 5, and FIG. 9).

Moreover, the long standing guide plate 51 extended along the longitudinal direction of the center grain stem standing case 22b is attached to the left side part of the center grain stem standing case 22b. In this case, the standing guide plate 51 extends over the location on the non-action side in the left part of the center grain stem standing case 22b, and the location on the action side. When viewed from the front, the distal end portion of the standing tine 21c protruding from the left side of the left grain standing case 22c toward the center grain standing case 22b is hidden behind the standing guide plate 51.

The right and center grain stem standing cases 22a and 22b are configured to stand two pairs of uncut grain stems in pairs, while the left grain stem standing case 22c alone stands up one pair of uncut grain stems. Consists of. That is, in the nail cutting, the right two of the three trillion uncut grain stems in front of the traveling body 1 are standing tines 21a and 21b in the right and center grain stem standing cases 22a and 22b. ) And stands between the right and the center grain stem standing cases 22a and 22b. An uncut grain stem for one set of left grains stands only by the standing tines 21c of the left grain stem standing case 22c, and is received between the center and the left grain stem standing cases 22b and 22c.

According to the above structure, the arrangement position of the left grain stem standing case 22c is so close to the center grain stem standing case 22b that the standing tines 21c do not contact the center grain stem standing case 21b when seen from the front, Furthermore, the standing tine 21c and the standing tine 21b of the protruding initial stage appearing from the left end near the bottom in the center grain stem standing case 22b do not interfere rearward from the center grain standing case 22b so as not to interfere with each other. Since it is turned on, the whole grain standing case 22 for 3 sets corresponds to the interposition space | interval of the uncut grain in a package, and becomes the arrangement position optimal for grain standing. This makes it possible to appropriately perform the standing grain in the grain picking with the standing tines 21 of the whole grain standing case 22 for three sets, so that the standing performance as the whole grain standing case 22 can be improved. will be.

Next, the structure of each grain stem standing case is demonstrated, referring FIGS. 7-9. Each grain stem standing case 22 is the right grain stem standing case 22a and the center grain stem standing case 22b are symmetrical, or the standing guide plate 51 is provided only in the center grain stem standing case 22b. But basically the same configuration. Therefore, the detailed structure of the center grain stem standing case 22b is demonstrated below as an example.

The central grain stem standing case 22 has a synthetic resin plate front cover 61 formed by integrally forming an enclosure wall 62 around the metal plate, and a back plate 63 made of metal plate mounted on the rear surface side of the front cover 61. It is formed in a hollow shape up and down long by. A tine groove hole 64 for protruding the standing tines 21b outward is opened in an area from the left end portion near the lower portion to the upper right portion of the surrounding wall 62 of the front cover 61 (FIG. Only part of 8). The location of the tine groove hole 64 in the enclosure wall 62 constitutes the action side of the central grain stem standing case 22b. The combination of the front cover 61 and the back plate 62 corresponds to the case body described in the claims.

An endless chain 67 as an endless belt is wound around the standing drive sprocket 47 and the tension sprocket 65 provided on the upper side and the driven roller 66 provided on the lower side of the center grain standing case 22b. have. The standing drive shaft 46 fixed to the standing drive sprocket 47 is axially rotatably supported by the back plate 63 in the middle portion thereof. The leading end of the standing drive shaft 46 protrudes outward from the back plate 63. A plurality of standing tines 21b are attached to the endless chain 67 so as to swing up and down at appropriate intervals. The plurality of standing tines 21b attached to the endless chain 67 by the standing drive sprocket 47 rotated by the power transmitted from the standing drive shaft 44 in the standing drive pipe 39 to the standing drive shaft 46 It is configured to rotate clockwise when viewed from the front. The standing drive sprocket 47, the tension sprocket 65, and the driven roller 66 correspond to the electric vehicle described in a claim.

When the standing tines 21b reach the left end in the vicinity of the lower part of the center grain stem standing case 22b in the upper part of the driven roller 66 among the insides of the center grain stem standing case 22b (action from an inoperative side) When it moves to the side), the protrusion guide member 68 which contacts the rotating base end part of the said standing tine 21b is provided. The standing base 21b of the standing tine 21b reaching the left end near the bottom in the center grain standing case 22b contacts the protruding guide member 68, whereby the standing tine 21b is placed on the surrounding wall 62. As shown in FIG. It is comprised so that it may change into the posture which protrudes outward from the starting end position of the formed tine groove hole 64. As shown in FIG. At the position of the driven roller 66, when the rotary base end of the standing tine 21b contacts the outer peripheral edge of the driven roller 66, the standing tine 21b is viewed from the center of rotation of the driven roller 66. The radially outwardly protruding position (see FIG. 7).

A tine guide 69 for maintaining the standing tine 21b in an outwardly protruding state is provided at a portion near the action side in the center grain standing case 22b so as to extend along the longitudinal direction of the endless chain 67. have. Therefore, in the location on the working side in the center grain standing case 22b (the area from the left end part near the bottom part to the upper right part through the bottom part), each standing tine 21b is outwardly along the tine groove hole 64. It is configured to return to the protruding state.

In addition, in the location on the non-action side (region from the upper right side to the upper left end near the lower portion) in the center grain standing case 22b, the tip of the standing tin 21b is in contact with the inner wall of the enclosure wall 62 and the like. It is comprised so that the said standing tine 21b may be accommodated in the posture which fell in the standing case 3 (posture stuck to the stepless chain 67). In addition, the tension sprocket 65 is provided so that the endless chain 67 can move in the direction of tension and relaxation with respect to the back plate 63.

As shown in FIGS. 8 and 10, the endless chain 67 with the standing drive sprocket 47, the tension sprocket 65, the driven roller 66, the standing tines 21, the front cover 61, and the back plate 63 and the like are unitized as one grain stem standing case 22.

Next, the structure of the regulating member provided only in the center grain stem standing case is demonstrated.

The lower end of the acting side in the center grain standing case 22b, ie, the left end portion near the lower part in the center grain standing case 22b, has a cross section of a U-shaped regulating member 70 fixed by welding or bolting. It is.

When this standing member 21b which reached the left edge part of the lower part vicinity in the center grain stem standing case 22b changes to the attitude which protrudes outward from the starting point of the tine groove hole 64, It is for regulating the upward rotation around the proximal end of the standing tine 21b.

In addition, due to the arrangement relationship of the left grain stem standing case 22c with respect to the center grain stem standing case 22b, the standing tines protruding outwardly from the rear surface of the standing guide plate 51 and the right side of the left grain stem standing case 22c ( A gap in the front-rear direction opens between the tip portions of 21c) (see Fig. 9). If this gap is left open, there is a fear that the root portion of the uncut grain of one trillion left can enter the gap. In this regard, the restricting member 70 serves to prevent the intrusion of the root portion of the uncut grain by removing the gap.

The restricting member 70 of the present embodiment is attached to the rear surface side of the standing guide plate 51 so as to surround the beginning end of the groove hole 64 from the outside. The space surrounded by the regulating member 70 and the standing guide plate 51 penetrates in the vertical direction.

As shown in FIGS. 7-9, in the initial stage of protrusion of the standing tines 21b (step in which the standing tines 21b reached the left end near the lower part in the center grain stem standing case 22b), outwards. The tip of the standing tin 21b, which is about to change into a protruding posture, strikes the inner wall surface of the regulating member 70 so that the standing tin 21b is raised to the middle and maintained in a rotated position.

That is, the rising angle θ of the standing tine 21b with respect to the endless chain 67 is regulated in a small state at the stage of protruding initial until the standing tine 21b passes through the position of the regulating member 70. . When the standing tine 21b passes through the position of the restricting member 70, the standing tine 21b is completely changed into an outwardly protruding posture and is rotated along the tine groove hole 64.

As described above, a restricting member for regulating the posture of the standing tines 21b of the initial stage of protruding near the lower portion in the central grain stem standing case 22b to the lower portion of the acting side in the center grain stem standing case 22b ( 70, the standing tines 21b of the center grain stem standing case 22b are in a posture projecting toward the right side of the acting side in the left grain stem standing case 22c in the initial stage of protrusion. Can be regulated.

As a result, the standing tines 21b of the initial projecting portion in the center grain standing case 22b may scrape (do away with) the uncut grain stem for one trillion left side corresponding to the left grain standing case 22c. ) Can significantly suppress concerns.

Therefore, according to the said structure, the uncut grain stem for 1 trillion left side can be reliably stopped by the standing tines 21c of the left grain stem standing case 22c alone, without being disturbed by the standing tines 21b of the center grain stem standing case 22b. It stands up and can be accommodated between center and left grain stem standing cases 22b and 22c.

In addition, the presence of the restricting member 70 eliminates the gap in the front-rear direction between the rear surface of the standing guide plate 51 and the leading end of the standing tine 21c in the left grain standing case 22c. It is also possible to prevent straw clogging due to entry of one trillion of uncut grain stems into the gap.

As shown in detail in FIG. 8 and FIG. 9, the restricting member 70 is inclined to the rear obliquely in a rightward direction when viewed from a plan view of the outer surface opposing the distal end portion of the standing tines 21c in the left grain standing case 22c. It is formed by the guide surface 70a. The guide surface 70a of the restricting member 70 cooperates with the standing tines 21c of the left grain standing case 22c to draw the root portion of the left uncut grain stem toward the rear star wheel 23 and the like. It is for.

As mentioned above, the inclined guide surface for drawing the base part of the uncut rice grain of the left one set back to the place which opposes the tip part of the standing tine 21c in the left grain stem standing case 22c among the restricting members 70 is rearward. When 70a is formed, the root portion of the uncut grain of left uncut grain is cooperated with the guide surface 70a of the restricting member 70 and the standing tines 21c of the left grain standing case 22c. 23) It can be guided smoothly to the back to prevent the occurrence of straw overflowing and conveyance disturbance during standing grain. In particular, when a large amount of uncut grain stems stands in a grain stem standing case group as in so-called intermediate division work, the inclined guide surface 70a in the restricting member 70 exhibits a high guide function.

Next, with reference to FIGS. 6-18, the drive structure of each standing tine 21a, 21b, 21c for three trillion in the grain stem standing apparatus 13 of this embodiment is demonstrated.

As shown in FIG.9 and FIG.10, the center, left, and right standing gear case 71b of the center, left, and right in the upper end side of the center, left, and right standing drive pipes 39b, 39c, 39a which were installed in the transverse transmission pipe 37 was shown. 71c and 71a are connected to the upper end side (the grain conveyance end side of the standing tines 21b, 21c, and 21a) of the center, left, and right grain stem standing cases 22b, 22c, and 22a, respectively.

11 to 13, the standing drive pipes 39c and 39a on the left and right sides, the standing gear cases 71c and 71a on the left and right sides, and the grain standing cases 22c and 22a on the left and right sides. Explain the structure.

As shown in Figs. 11 to 13, the standing gear cases 71c and 71a on the left and right sides are formed by a casting process in a substantially square cylindrical structure as viewed from the side. A flange body 72 is fixedly fixed to one end of the left and right standing drive pipes 39c and 39a by welding, and a flange body is provided to one end side flange portion 74 of the left and right standing gear cases 71c and 71a. The flat 1st registration surface 75 which can contact the flange side registration surface 73 in 72 is provided. The standing gear cases 71c and 71a of the left and right sides, and the flange bodies 72 of the standing drive pipes 39c and 39a of the left and right sides are mutually planar, respectively, with the first alignment surface 75 and the flange side alignment surface 73 on the plane. ) Is detachably fastened by a plurality of bolts 76 in contact (overlapping) state. Moreover, the screw of the bolt 76 is screwed to the one end side flange part 74. As shown in FIG.

In addition, the other end flange portion 77 of the left and right standing gear cases 71c and 71a has a planar second in contact with the case fitting surface 79 in the left and right grain stem standing cases 22c and 22a. A fitting surface 78 is formed. The standing gear cases 71c and 71a on the left and right sides, and the grain stem standing cases 22c and 22a on the left and right sides contacted (superimposed) the second planar alignment surface 78 and the case alignment surface 79 on a plane to each other. Is detachably fastened by a plurality of bolts 80 (fastening means). Moreover, the screw of the bolt 80 is screwed to the nut 81 (fastening hole) of the front surface side of the back plate 63. As shown in FIG.

On the other hand, the left and right standing gear cases 71c and 71a have a main bevel gear 82 fitted to the left and right standing motor shafts 44c and 44a of the left and right standing drive pipes 39c and 39a. And a gear mechanism 84 having driven bevel gears 83 fitted to the standing drive shafts 46c and 46a of the left and right grain stem standing cases 22c and 22a. The standing gear cases 71c and 71a of the left and right side are comprised by the gear case unit structure in which the main bevel gear 82 and the driven bevel gear 83 were integrated.

The coarse bevel gear 82 is arrange | positioned in the 1st axial hole 93 of one of the "shaped" holes formed in the standing gear cases 71c and 71a of the left and right sides, and the driven bevel gear 83 is made of the other agent. It is arrange | positioned in the biaxial hole 94. The main bevel gear 82 and the driven bevel gear 83 are always engaged in the standing gear cases 71c and 71a of the left and right sides.

In this embodiment, the spline part formed in the front-end | tip part of the standing transmission shafts 44c and 44a is slidably inserted with respect to the spline hole 98 formed in the coarse bevel gear 82 (spline fitting). Moreover, the spline hole 99 formed in the driven bevel gear 83 is slidably inserted so that the spline part formed in the front-end | tip part of the standing drive shaft 46c, 46a may rotate integrally (spline fitting). Therefore, the power transmitted to the standing transmission shafts 44c and 44a causes the standing drive sprockets 47c and 47a to be driven to rotate through the gear mechanism 84 and the standing drive shafts 46c and 46a.

The standing drive shafts 46a and 46c of the left and right grain standing surfaces 22a and 22c correspond to the drive shaft as the male fitting body described in the claims, and the standing side embedded in the left and right standing gear cases 71a and 71c as power transmission units. The bevel gear 83 corresponds to a transmission gear as a shaped fitting described in the claims.

In addition, instead of the splined portions of the standing drive shafts 46a and 46c, polygonal shaft portions such as hexagons are adopted in cross section, and the standing drive shafts 46a and 46c are fitted by fitting the polygonal shaft portions to the transmission gears having corresponding polygonal holes. You may comprise so that sliding is possible so that it may rotate integrally with respect to the said transmission gear.

A bearing bearing 86 is fitted into the boss portion 85 of the coarse bevel gear 82. The bearing bearing 86 is detachably locked to the boss portion 85 via a retaining ring 87 of a snap ring type. The bearing bearing 86 is detachably locked with respect to the bearing accommodation part 95 in the standing gear case 71c, 71a of the left and right side via the retaining ring 88 of a snap ring type | mold. Therefore, the coarse bevel gear 82 accommodates the bearing on the side of the first shaft hole 93 in the standing gear cases 71c and 71a on the left and right sides through the bearing bearing 86 fitted to the boss portion 85. The portion 95 is supported in a cantilevered state and detachably.

On the other hand, a bearing bearing 90 is fitted into the boss portion 83 of the driven bevel gear 83. The bearing bearing 90 is detachably locked to the boss portion 83 through a retaining ring 91 of a snap ring type. The bearing bearing 90 is detachably locked to the bearing accommodation portion 96 in the standing gear cases 71c and 71a on the left and right sides via a retaining ring 92 of a snap ring type. Therefore, the driven bevel gear 83 accommodates the bearing on the side of the second shaft hole 94 in the standing gear cases 71c and 71a on the left and right sides through the bearing bearing 90 fitted to the boss portion 83. The part 96 is supported in a cantilevered state and detachably.

Moreover, in this embodiment, the left and right standing drive pipes 39c and 39a are comprised by the standing drive unit structures which have the left and right standing drive shafts 44c and 44a, and the left and right grain stem standing cases 22c. 22a has a standing case unit structure having standing drive shafts 46c and 46a on its left and right sides.

With the above configuration, since there are no shafts protruding from the left and right standing gear cases 71c and 71a, the left and right standing gear cases 71c and 71a are compact and easy to handle. can do.

Next, with reference to FIGS. 14-16, the connection structure of the center standing drive pipe 39b, the center standing gear case 71b, and the center grain standing case 22b is demonstrated.

As shown in FIGS. 14-16, the center standing gear case 71b is formed in the cylindrical structure extended to レ shape by casting process. The second shaft hole 124 (through hole) for inserting the standing drive shaft 46b of the center grain standing case 22b among the L-shaped holes formed in the center standing gear case 71b is the center standing gear. The case 71b penetrates linearly. And the 1st shaft hole 123 (communication hole) for inserting the standing transmission shaft 44b in the center standing drive pipe 39b is communicated with this 2nd shaft hole 124. As shown in FIG. That is, the hole formed in the center standing gear case 71b has the 2nd shaft hole 124 which penetrated the center standing gear case 71b linearly, and the 1st football which communicated with this 2nd shaft hole 124. FIG. The yoke 123 communicates in an intersection state, and the standing gear case 71b in the center is bifurcated.

The flange 102 is fixed to one end side of the center standing drive pipe 39b by welding or the like. At the one end side flange portion 104 of the central standing gear case 71b, a first planar alignment surface 105 which is in contact with the flange side alignment surface 103 of the flange body 102 is formed. In the state where the center standing gear case 71b and the flange body 102 of the center standing drive pipe 39b are in contact with each other (overlapping) the first planar alignment surface 105 and the flange side alignment surface 103, The bolts 106 are detachably fastened. Moreover, the screw of the bolt 106 is screwed to the one end side flange part 104. As shown in FIG.

Moreover, the other end flange part 107 of the standing gear case 71b of the center is provided with the 2nd planar fitting surface 108 which can contact the case fitting surface 109 of the center grain standing case 22b. The center standing gear case 71b and the center grain standing case 22b are a plurality of bolts 110 (fastening) in a state where the second planar fitting surface 108 and the case fitting surface 109 are in contact (overlapping). Means) is detachably fastened. Moreover, the screw of the bolt 110 is screwed to the nut 111 (fastening hole) of the front surface side (inner surface side) in the back plate 63. As shown in FIG.

On the other hand, in the center standing gear case 71b, the coarse bevel gear 112 fitted in the standing drive shaft 44b in the center standing drive pipe 39b, and in the center grain standing case 22b. A gear mechanism 114 having a driven bevel gear 113 fitted to the standing drive shaft 46b is built in. Also in this case, the standing gear case 71b of the center is comprised by the gear case unit structure in which the main bevel gear 112 and the driven bevel gear 113 were integrated. The main bevel gear 112 and the driven bevel gear 113 are always meshed in the standing gear case 71b of the center.

In this embodiment, the spline part formed in the front-end | tip part of the standing transmission shaft 44b is slidably inserted so that the spline hole 138 formed in the coarse bevel gear 112 may rotate integrally (spline fitting). Moreover, the spline hole 139 formed in the driven bevel gear 113 is inserted so that the spline part formed in the front-end | tip part of the standing drive shaft 46b can rotate so that it may integrally rotate (spline fitting). Therefore, also in this case, the power transmitted to the standing transmission shaft 44b causes the standing drive sprocket 47b to be driven to rotate through the gear mechanism 114 and the standing drive shaft 46b.

The standing drive shaft 46b of the center grain standing case 22b corresponds to the drive shaft as the male fitting body described in the claims, and the standing side bevel gear 113 incorporated in the center standing gear case 71b as the power transmission unit is claimed. It corresponds to the transmission gear as a shaped fitting described in the range.

Moreover, also in this case, instead of the spline part of the standing drive shaft 46b, a polygonal shaft part, such as a hexagonal cross section, is employ | adopted, and a standing drive shaft 46b is fitted by fitting the said polygonal shaft part to the transmission gear in which the polygon hole corresponding to this was formed. May be configured to slide so as to rotate integrally with respect to the transmission gear.

A bearing bearing 116 is fitted into the boss portion 115 of the coarse bevel gear 112. This bearing bearing 116 is detachably locked to the boss | hub part 115 via the retaining ring 117 of a snap ring type | mold. The bearing bearing 116 is detachably locked with respect to the bearing accommodation part 125 in the 1st shaft hole 123 in the center standing gear case 71b via the retaining ring 118 of a snap ring type. . Therefore, the coarse bevel gear 112 is the bearing accommodation part 125 of the 1st shaft hole 123 side in the center standing gear case 71b via the bearing bearing 116 fitted to the boss | hub part 115. As shown in FIG. In a cantilevered state and detachably supported.

On the other hand, a bearing bearing 120 is fitted into the boss portion 119 of the driven bevel gear 113. The bearing bearing 120 is detachably locked to the boss 119 through a retaining ring 121 of a snap ring type. The bearing bearing 120 is also detachably locked with respect to the bearing accommodation part 126 of the 2nd shaft hole 124 in the standing gear case 71b of the center via the snap ring retaining ring 122. FIG. . Therefore, the driven bevel gear 113 has the bearing accommodation part 126 on the side of the 2nd shaft hole 124 in the center standing gear case 71b via the bearing bearing 120 inserted in the boss part 119. As shown in FIG. In a cantilevered state and detachably supported.

Moreover, also in this case, the standing drive unit structure in which the center standing drive shaft 44b is arrange | positioned in the center standing drive pipe 39b, and the center standing drive shaft 46b in the center grain stem standing case 22b are arrange | positioned. The standing case unit structure is employed together with the gear case unit structure described above. Also in the case of employing the above-described configuration, since there is no shaft protruding from the center standing gear case 71b, the center standing gear case 71b can be configured in a compact and easy to handle unit structure.

As described above, the through hole 124 for inserting the standing drive shaft 46b of the central grain stem standing case 22b is formed in the center standing gear case 71b so as to penetrate the center standing gear case 71b in a straight line. (See FIG. 15 and FIG. 16). The standing side bevel gear 113 is configured to be detachable from the bearing accommodation portion 126 through an inlet 128a positioned opposite to the insertion hole 128b into which the standing drive shaft 46b is inserted, among the through holes 124. It is. The inlet port 128a is closed by the removable cover 129 so that it can be opened and closed. Accordingly, the driven bevel gear 113 is mounted to the bearing accommodation portion 126 from the inlet opening 128a or is drawn out of the bearing accommodation unit 126 through the introduction opening 128a.

For this reason, the external dimension of the standing gear case 71b of the center is compared with the transmission structure shown in FIG. It can form compactly with respect to the axial direction of the center standing drive shaft 46b. That is, the state where the center standing motor shaft 44b and the center standing drive shaft 46b crossed through the main bevel gear 112 and the driven bevel gear 113 (the end part of the center standing motor shaft 44b is centered). Since it can be connected to the intermediate part of the standing drive shaft 46b, the external size of the center standing gear case 71b can be made compact with respect to the axial center direction of the standing drive shaft 46b.

According to the above structure, the grain stem standing case 22a-22c wound the endless chain 67 with the standing tine 21 attached to the standing drive sprocket 47, the tension sprocket 65, and the driven roller 66. In order to install the grain stem standing cases 22a-22c in the harvesting pretreatment apparatus 3, the standing drive shafts 46a-46c by the grain stem standing cases 22a-22c side are the standing gear cases 71a-. Inserted into the spline hole 99 (139) of the driven bevel gear 83 (113) in 71c), and then the upper surface of the rear surface of the grain stem standing cases 22a-22c and the standing gear cases 71a-71c were then made. What is necessary is just to fasten with the bolt 80 (110), and to fasten the lower part of the back surface of the grain stem standing case 22a-22c, and the branch frame 52.

On the contrary, in removing the grain standing cases 22a-22c, while loosening the bolt 80 (110) which fastens the upper part of the back surface of the grain stem standing cases 22a-22c, and the standing gear cases 71a-71c, Loosen the bolts that fasten the bottom of the rear surface of the standing cases 22a to 22c and the branch frame 52 to disconnect the grain stem standing cases 22a to 22c, the standing gear cases 71a to 71c and the branch frame 52. Then, the standing bevel gears in the standing gear cases 71a to 71c are pulled forward by pulling the standing drive shafts 46 on the sides of the grain stem standing cases 22a to 22c. This can be done by pulling out from the spline hole 99 (139) of the 83 (113).

That is, since the unit structure of the standing gear case 71c, 71a, the unit structure of the standing drive pipes 39c, 39a, and the unit structure of the grain stem standing case 22c, 22a are comprised separately, an assembly operation | work or Disassembly work etc. can be performed easily. Moreover, since the unit structure of the center standing gear case 71b, the unit structure of the center standing drive pipe 39b, and the unit structure of the center grain stem standing case 22b are comprised separately, an assembly operation | work or Disassembly work etc. can be performed easily.

Therefore, if such a configuration is adopted, the grain stem standing cases 22a to 22c are assembled in advance in the manufacture of the combine, and then the grain stem standing cases 22a to 22c are provided as a unit to the harvesting pretreatment apparatus 3. Can be. Thereby, the installation work of grain stem standing cases 22a-22c is reduced in a combine manufacturing line, and it can contribute to reduction of a manufacturing cost.

Further, the back plate 63 and the standing gear cases 71a to 71c of the grain stem standing cases 22a to 22c are positioned at each time of the installation of the grain stem standing cases 22a to 22c, or the stepless standing of the grain stem standing cases 22a to 22c. Since it is not necessary to adjust the expansion state of the chain 67 one by one, the effort of installation and removal work of the grain stem standing cases 22a-22c can be remarkably reduced. In addition, the maintenance work of cleaning in the harvesting pretreatment apparatus 3 also becomes easy. The function of attaching and detaching the grain stem standing cases 22a-22c as a unit unit like this embodiment has a straw-block force etc. in the location of the grain stem conveyance apparatus 14 located behind the grain stem stand apparatus 13, for example. In particular it is valid.

In the present embodiment, the spline hole 99 (129) of the driven bevel gear 83 (113) is slidably inserted so as to integrally rotate the spline portion formed at the distal end of the standing drive shaft 46 (spline Fitting), the power from the standing transmission shafts 44a to 44c without impairing the ease of detachment of the united grain stem standing cases 22a to 22c and the standing gear cases 71a to 71c. Can be transmitted to the standing drive sprocket 47 through the gear mechanism 84 (114) and the standing drive shafts 46a to 46c.

As shown in FIG. 10, the lower end side of the above-mentioned center standing drive pipe 39b is detachably connected to the front-end | tip part of the branch pipe 130 which protruded from the horizontal transmission pipe 37 toward a gas front (forward direction). The standing transmission shaft 44b in the center standing drive pipe 39b is connected to the horizontal transmission shaft 43 through the branch shaft 131 built in the branch pipe 130, two sets of bevel gear mechanisms, and the like.

On the other hand, as shown in FIG. 10, FIG. 17, and FIG. 18, the lower end sides of the above-mentioned left and right standing drive pipes 39c and 39a are detachably fastened to the horizontal transmission pipe 37 by the bolt 132. FIG. . The standing drive shafts 44c and 44a in the left and right standing drive pipes 39c and 39a are connected to the transverse drive shaft 43 via a set of bevel gear mechanisms 133 and the like.

19 is another example showing the connection structure between the right upper conveying case 150 having the upper right conveying tin 31 and the vertical drive gear case 154.

The right upper side conveying case 150 as a grain stem conveying apparatus in this other example is similar to the above-mentioned grain standing case 22, and the right upper side conveying tines as an endless belt are carried by the conveyance drive sprocket and driven rollers (all not shown) as an electric vehicle. A tine chain (not shown) with (31) attached thereto is wound around it, and the upper and lower pairs of cover plates 151 and 152 are fitted together to form a unit. The upper and lower pairs of cover plates 151 and 152 correspond to the case bodies described in the claims.

The splined cylinder 153 fitted to the tip end (upper end) of the longitudinal drive shaft 50 is fixed to the conveyance drive sprocket in the right upper conveyance case 150. The intermediate portion of the spline cylinder 153 is rotatably supported by the lower cover plate 152. The lower end part of the spline cylinder 153 protrudes outward (downward) from the lower cover plate 152.

On the other hand, the vertical drive shaft 50 protrudes upward from the vertical drive gear case 154 as a power transmission unit in which a gear mechanism (not shown) is incorporated. The vertical drive shaft 50 is configured to transmit power from the harvesting input shaft 41 through a gear mechanism.

The splined cylinder body 153 of the conveyance drive sprocket is inserted so as to be slidable so as to rotate integrally with the spline portion formed at the upper end of the vertical drive shaft 50 (spline fitting). And the upper right conveying tine 31 attached to the tine chain is drive-driven by the drive force which rotates a conveyance drive sprocket from the longitudinal drive shaft 50 via the spline cylinder 153. In this case, the vertical drive shaft 50 corresponds to the male fitting described in the claims, and the splined cylinder 153 of the conveying drive sprocket corresponds to the female fitting described in the claims.

Moreover, also in this case, instead of the spline part of the vertical drive shaft 50, a polygonal shaft part, such as a hexagonal cross section, is employ | adopted, and a vertical drive shaft is conveyed sprocket by fitting the said polygonal shaft part to the cylinder in which the polygon hole corresponding to this was formed. It may be configured to be slidable so as to rotate integrally with respect to the cylinder.

The lower cover plate 152 and the vertical drive gear case 154 of the upper right conveying case 150 are fasteners 155 from the horizontal direction intersecting with the direction in which the longitudinal drive shaft 50 is inserted into the spline cylinder 153. The fastener 156 is detachably fastened.

Also in this case, after the assembly of the upper right upper carrying case 150 at the time of manufacture of a combine, the upper right upper carrying case 150 can be attached to the harvesting pretreatment apparatus 3 as a unit. Thereby, the installation man-hour of the upper right conveyance case 150 can be reduced in the combine manufacturing line. In addition, since the right upper carrying case 150 can be easily installed or removed from the vertical drive gear case 154, maintenance of cleaning and maintenance of the upper right carrying case 150 and its surroundings can be improved.

The present invention is not limited to the above-described embodiments, and can be embodied in various forms. For example, the horizontally-rotated grain stem standing case is not limited to the above-described three-piece type, and may be a plurality.

In addition, the structure of each part is not limited to embodiment of illustration, It can change variously in the range which does not deviate from the meaning of this invention.

Claims (10)

A combine comprising a grain stem conveying device and a power transmission unit for transmitting power to the grain stem conveying device in a harvesting pretreatment device installed in the front part of the traveling body, The grain stem conveying device is unitized by assembling two or more electric cars and an endless belt with a tine wound on these electric cars on a case body, One of the male fittings or the female fittings is installed in the grain stem conveying device, and the other of the male fittings or the female fittings is installed in the power transmission unit, and the male fittings and the female fittings are detachable. By fitting as possible, the power of the power transmission unit is configured to be transmitted to the grain stem conveying device, The grain stem conveying device is detachably fastened to the power transmission unit, The grain stem conveying apparatus is a grain stem standing case for protruding the standing tine in the transverse direction crossing the traveling direction of the traveling gas, The grain stem standing cases are arranged in plural at predetermined intervals along a width direction intersecting with the traveling direction of the traveling body, while standing grain transfer pipes for transmitting a driving force to the grain stem standing cases, the grain stem standing cases and the stand driving pipes. Equipped with a standing gear case for connecting the A flange body is fixedly installed at one end side of the standing drive pipe, and the first gear surface is formed in the standing gear case so as to be in contact with the flange side fitting face in the flange body. And said flange body of said standing gear case and said standing drive pipe is detachably fastened in a state in which said first fitting surface and said flange side fitting surface are in contact with each other. delete delete delete delete The standing gear case according to claim 1, wherein the standing gear case is provided with a second fitting face that is in contact with the case fitting face of the grain stem standing case; And said standing gear case and said grain stem standing case are detachably fastened in a state in which said second fitting surface and said case fitting surface are in contact with each other. The mounting direction of the standing gear case and the flange body coincides with the alignment direction of the alignment surface of the standing gear case and the flange side alignment surface, and the standing gear case and the grain stem. A combine characterized in that the engagement direction of the standing case is made to coincide with the alignment direction of the standing gear case and the case fitting surface. The said standing gear case has the 1st shaft hole which arrange | positions the main bevel gear which fits through the spline in the standing transmission shaft of the said standing drive pipe, and splines in the standing drive shaft of the said grain stem standing case. A second shaft hole for arranging a driven bevel gear to be fitted therethrough; The said main bevel gear and the said driven bevel gear which respectively fitted bearing bearings are arrange | positioned so that attachment or detachment is possible for each bearing accommodation part of the said 1st shaft hole and the said 2nd shaft hole, respectively. 9. A bearing bevel gear and a driven bevel gear are respectively disposed in a cantilever state through one bearing bearing in each of the bearing accommodation portions of the first shaft hole and the second shaft hole. Combine. The standing gear case according to claim 8, wherein the second shaft hole for inserting the standing drive shaft of the grain stem standing case is formed to pass through the standing gear case in a straight line; And said driven bevel gear is detachably attached via an inlet on the opposite side to an insertion opening into which said standing drive shaft is inserted among said second shaft holes.

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