JP2019097398A - Combine-harvester - Google Patents

Abstract

To provide a combine-harvester excellent in assembly property, and comprising a threshing cylinder advantageous in intensity.SOLUTION: A threshing cylinder 30 is divided into a front part and a rear part, the threshing cylinder 30 comprises a front shell part 32, a rear shell part 33 and an intermediate shell part 34 which integrally rotate. The combine-harvester comprises a front side connection part positioning part 53F, a rear side connection part positioning part 53B, and a positioning part 56 for a space between shell parts for aligning positions of the front shell part 32, the rear shell part 33 and the intermediate shell part 34 in a rotation shaft center of the threshing cylinder.SELECTED DRAWING: Figure 11

Description

  [0001] The present invention relates to a combine equipped with a threshing device for threshing a reaper by a threshing cylinder.

  For example, a combine described in Patent Document 1 is already known as a combine as described above. The combine described in Patent Document 1 is provided with a threshing device (in the literature, a "threshing machine") for threshing the cropped rice straw with a threshing cylinder. The threshing cylinder comprises a threshing drum shaft ("the support shaft" in the literature) extending in the longitudinal direction of the machine body, and a torso supported by the threshing sleeve shaft and having a plurality of throttling teeth attached to the outer peripheral portion ("the threshing drum" in the literature And. The torso is constituted by a single torso portion extending along the entire length of the torso.

JP, 2010-068752, A

  In the combine described in Patent Document 1, when assembling the threshing cylinder, it is necessary to handle the entire body integrally, which requires labor. In addition, since the longitudinal length of the body portion is long, it is disadvantageous in terms of strength.

  In view of the above-mentioned situation, there is a demand for a combine with a threshing cylinder which is excellent in assemblability and advantageous in strength.

The features of the present invention are:
A combine equipped with a threshing device for threshing a reaping crop by a threshing cylinder,
The threshing cylinder includes a threshing cylinder shaft extending in the front-rear direction, and a body supported by the threshing cylinder shaft and having a plurality of throttling teeth attached to an outer peripheral portion thereof.
The torso has a plurality of torso portions which are integrally rotated while the torso is divided back and forth,
An alignment unit may be provided to align the positions of the plurality of body units around the rotation axis of the threshing barrel.

  According to this feature configuration, by dividing and handling the body into a plurality of body parts at the time of assembling the threshing cylinder, labor is less than when the entire body is integrally handled. At that time, by aligning the positions of the plurality of body parts around the rotation axis by the alignment unit, the plurality of body parts can be easily assembled without the positional deviation of the plurality of body parts around the rotation axis. be able to. Moreover, since the front-back length of each torso part becomes short, it is advantageous in terms of strength.

  That is, according to the present feature configuration, it is possible to realize a combine with a threshing cylinder which is excellent in assemblability and advantageous in terms of strength.

Furthermore, in the present invention,
It is preferable that a connecting member for connecting the body portions adjacent to each other in the front and rear direction is provided.

  According to this feature configuration, by connecting the adjacent to each other by the connecting member, there is no need to overlap the adjacent to each other, and the outer peripheral surface of the front torso and the torso on the rear side The body portions adjacent to each other can be easily connected so as to be flush with the outer peripheral surface of the body.

Furthermore, in the present invention,
It is preferable that as the alignment portion, a connection member alignment portion provided so as to extend over the body portion and the connection member and which aligns the position of the body portion with the connection member around the rotation axis is provided. It is.

  According to this feature configuration, by aligning the position of the body with respect to the connection member around the rotation axis by the connection member alignment portion, the body does not shift in position in the rotation axis direction with respect to the connection member. It is possible to easily connect the body parts adjacent to each other in the front and rear direction by the connecting member.

Furthermore, in the present invention,
The connecting member is provided along an inner circumferential surface of the body,
The connecting member positioning portion is provided with a plurality of projections provided at intervals around the rotation axis in a state of protruding from the connecting member toward the outer side in the radial direction of the body, and front and rear ends of the body portion It is preferable to have the intruding part which is provided in the end part by the side of the said connection member among parts, and which penetrates between the said protrusions.

  According to this feature configuration, the intruding portion enters between the protrusions, and the intruding portion abuts against the protrusion around the rotational axis, whereby the body portion rotates around the rotational axis with respect to the connecting member. Will be regulated. In this manner, positioning of the body with respect to the connecting member around the rotational axis can be easily performed only by inserting the inset portion between the protrusions.

Furthermore, in the present invention,
It is preferable that an interval between the protrusions and a width of the intruding portion around the rotation axis be set such that the intruding portion fits between the protrusions.

  According to this feature configuration, when the inset portion is fitted between the protrusions, the body portion does not rotate around the rotation axis with respect to the connection member, and the body portion relative to the connection member around the rotation axis Alignment can be performed accurately.

Furthermore, in the present invention,
It is preferable that a matching mark indicating the correct positional relationship between the body portion and the connecting member be provided across the body portion and the connecting member.

  According to this feature configuration, the fitting mark makes it possible to clarify the correct combination of the body and the connecting member, and to prevent the erroneous attachment of the body to the connecting member (mis-assembly).

Furthermore, in the present invention,
A matching mark is provided across the body and the connecting member to indicate the correct positional relationship between the body and the connecting member.
The mark on the body portion side among the mating marks is provided in the entry portion of the body portion,
It is preferable that the mark on the connection member side among the alignment marks is provided in a portion between the protrusions in the connection member.

  According to this feature configuration, the fitting mark makes it possible to clarify the correct combination of the body and the connecting member, and to prevent the erroneous attachment of the body to the connecting member (mis-assembly). In addition, since the mating mark is located near the projection and the entering part, when the entering part is inserted between the protrusions, the mating mark easily enters the eye, confirming the correct combination of the body part and the connecting member. While, the alignment of the body with respect to the connecting member around the rotation axis can be performed.

Furthermore, in the present invention,
The torso is divided back and forth into three of the torso portions;
The connecting members are, in three successive body parts, back and forth, between the front body part and the middle body part and between the rear body part and the middle body part. Each is provided,
The mark on the front side of the connection member is aligned with the mark on the connection member of the front side and the mark on the connection mark of the connection member on the rear side around the rotation axis. It is preferable that the rear connection member be configured to be aligned with the rear connection member.

  According to this feature configuration, alignment between the front connection member and the rear connection member around the rotation axis can be easily performed by the alignment mark.

Furthermore, in the present invention,
An inter-body alignment unit which is provided as the alignment unit over the body units adjacent to each other in the front and back direction and which aligns the position of the other front and rear body with respect to the front and rear one around the rotation axis Is preferably provided.

  According to this feature configuration, by aligning the positions of the other front and rear body parts with respect to the front and back one body parts around the rotation axis by the inter-body part alignment part, the other front and rear body parts can be the front and rear ones It is possible to easily assemble one of the front and rear body parts and the other front and rear body part without positional deviation around the rotational axis with respect to the part.

Furthermore, in the present invention,
The alignment unit between the body parts is any of the recess provided in any one of the front and rear body parts and the other front and rear body parts, and any one of the front and rear body parts and the front and rear body parts. It is preferable to have a convex portion provided on the other side and intruding into the concave portion.

  According to this feature configuration, it is possible to easily position the other front and rear body parts with respect to the front and rear body parts around the rotation axis only by inserting the convex part into the concave part.

Furthermore, in the present invention,
An inter-body alignment unit which is provided as the alignment unit over the body units adjacent to each other in the front and back direction and which aligns the position of the other front and rear body with respect to the front and rear one around the rotation axis Is equipped with
The alignment unit between the body parts is any of the recess provided in any one of the front and rear body parts and the other front and rear body parts, and any one of the front and rear body parts and the front and rear body parts. And a convex portion provided on the other side and entering the concave portion,
It is preferable that the recess be provided in the insertion portion.

  According to this feature configuration, by aligning the positions of the other front and rear body parts with respect to the front and back one body parts around the rotation axis by the inter-body part alignment part, the other front and rear body parts can be the front and rear ones It is possible to easily assemble one of the front and rear body parts and the other front and rear body part without positional deviation around the rotational axis with respect to the part. In addition, positioning of the other front and rear body parts with respect to the front and rear one body parts around the rotation axis can be easily performed only by inserting the convex part into the concave part. Moreover, by providing the recessed portion in the entering portion, the alignment by the connecting member alignment portion and the alignment by the inter-body alignment portion are performed at substantially the same position around the rotation axis. Thus, for example, it is not necessary to rotate the body or change the work position according to each alignment operation, and these alignment operations can be easily performed.

Furthermore, in the present invention,
The body portion is formed of a rolled plate material,
The roll seams of the body function as the alignment unit,
It is preferable that the plurality of body portions be configured to be aligned by aligning the roll joint of the plurality of body portions around the rotation axis.

  According to this feature configuration, it is possible to align the positions of the plurality of body parts around the rotation axis by using the roll joint of the body parts.

It is a left view which shows a self removal type combine. It is a top view which shows a self removal type combine. It is left side sectional drawing which shows a threshing apparatus. It is a left side sectional view showing a threshing drum. It is an exploded perspective view showing a threshing drum. It is a figure which shows the state in which the front body part, the back side body part, and the middle body part were connected. It is VII-VII sectional drawing in FIG. It is a disassembled perspective view which shows a connection member. It is a rear view which shows a connection member. It is XX sectional drawing in FIG. It is an exploded development view showing a body. It is a figure which shows a back side fuselage | body attachment process. It is a figure which shows a front side fuselage | body attachment process. It is a figure which shows a middle fuselage | body part attachment process. It is a figure which shows a squeeze tooth attachment process. It is an expanded view which shows the positional relationship of the hole and the connection member in which the base of a squeegee is inserted. It is a figure which shows the middle fuselage | body part attachment process which concerns on another embodiment. It is a figure which shows the connection part alignment part which concerns on 1st other embodiment. It is a figure which shows the connection part alignment part which concerns on 2nd another embodiment.

  An embodiment for carrying out the present invention will be described based on the drawings.

[Overall configuration of combine]
FIG. 1 and FIG. 2 show a self-eliminating type combine. The combine includes an airframe frame 1 and a traveling device 2 for supporting the airframe frame 1. A driving cabin 3 is provided on the right side at the front of the vehicle. The driving cabin 3 includes a driving unit 4 on which a driver rides, and a cabin 5 that covers the driving unit 4. Below the driving unit 4, an engine (not shown) is provided.

  In front of the driving cabin 3, a reaper 6 is provided to reap the cropped rice straw. Behind the driving cabin 3, a grain storage tank 7 for storing grains is provided. A grain discharging device 8 for discharging grains in the grain storage tank 7 is provided. At the left side of the machine body, a feed chain 9 is provided for holding and transporting the reaper. A threshing device 10 is provided on the left side of the grain storage tank 7. The threshing device 10 threshs the reaper by the feed chain 9 with the threshing cylinder 11. On the rear side of the threshing device 10, a discharge conveyance device 12 is continuously provided. The waste transport device 12 receives the waste after the threshing process from the feed chain 9 and nips and transports the waste backward.

[Mowing section]
The reaper 6 is configured to have a plurality of cutting specifications (for example, a six-row cutting specification). The reaper 6 includes a plurality of (for example, seven) weighing tools 13, a plurality (for example, six) of raising devices 14, a cutting device 15, and a conveying device 16. The wedging tool 13 disperses the crop of the field. The inducer 14 causes the planted cereals to be divided. The cutting device 15 cuts off the induced cereal grains. The transport device 16 transports the reaper to the threshing device 10 rearward.

Threshing device
As shown in FIG. 3, at the upper part of the threshing device 10, a throttling chamber 17 is formed. A threshing cylinder 11 is provided in the throttling chamber 17. The threshing cylinder 11 is rotatable around a rotational axis Y1 extending in the longitudinal direction of the vehicle. A net 18 is provided below the threshing drum 11. At the rear of the handling chamber 17, a dust collecting fan 19 for discharging dust to the outside is provided.

  At the lower part of the threshing apparatus 10, a rocking and sorting apparatus 20 for rocking and sorting the objects to be sorted, a tile 21 for blowing the selection wind to the rocking and sorting apparatus 20, grain of the first item (grains etc.) No. 2 collection part 23 which collects the first collection part 22 which collect | recovers, and the grain (grains etc. with a branch stem) of a second thing are provided.

  The first recovery section 22 is provided with a first screw 24 for conveying the grain of the first object to the right. At the right end portion of the first screw 24, a threshing device 25 for throttling and transporting the grain of the first product to the grain storage tank 7 is interlocked and coupled.

  The second collecting portion 23 is provided with a second screw 26 for conveying a second grain to the right. At the right end of the second screw 26, a second reduction device 27 for reducing the grain of the second shot to the rocking and sorting device 20 is interlocked and connected.

[Threshold cylinder]
As shown in FIG. 3 to FIG. 5, the threshing cylinder 11 has a substantially cylindrical shape which is supported by a threshing barrel shaft 28 extending in the longitudinal direction of the machine body and a plurality of throttling teeth 29 And a torso 30. The threshing cylinder 11 is rotatable around a rotational axis Y1 extending in the longitudinal direction of the vehicle. The threshing cylinder 11 is supported by the front wall 31 F and the rear wall 31 B in the throttling chamber 17 via the threshing cylinder shaft 28. The body 30 has a plurality of (e.g., three) body portions in which the body 30 is divided (e.g., divided into three) back and forth. The body 30 is, as the body, a front body 32 located on the front side, a rear body 33 located on the rear side, and an intermediate body located between the front body 32 and the rear body 33. And 34. The front body 32, the rear body 33 and the middle body 34 are supported by a single threshing barrel shaft 28 so that they rotate together. The longitudinal length L1 of the front body portion 32, the longitudinal length L2 of the rear body portion 33, and the longitudinal length L3 of the middle body portion 34 are substantially equal. That is, the lengths of the front body 32, the rear body 33, and the middle body 34 in the front-rear direction are substantially equal.

  The threshing barrel shaft 28 is rotatably supported by the front wall 31F via the front bearing 35, and is rotatably supported by the rear wall 31B via the rear bearing 36. An input pulley 37 to which a driving force from the engine is input is provided at a portion of the threshing barrel shaft 28 that protrudes forward from the front wall 31F.

[Front fuselage]
The front body portion 32 is formed of a substantially cylindrical plate (roll-formed plate). The front body portion 32 is formed with a hole 32a into which the base (bolt 29a) of the throttling tooth 29 is inserted. A front plate 38 is fixed to the front end opening edge of the front body 32 by a bolt that closes the front end opening. A front boss 39 is fixed to a rear surface of the front plate 38 (a surface on the inner side of the body 30) by a bolt 40. The front boss 39 is fixed to the threshing barrel shaft 28 by a bolt 41. The front plate 38 is supported by the threshing drum shaft 28 via the front boss 39 so as to be able to rotate with the threshing drum shaft 28 in a fixed manner.

[The back body part]
The rear side body portion 33 is formed of a substantially cylindrical plate material (roll-formed plate material). The rear side body portion 33 is formed with a hole 33 a into which the base (bolt 29 a) of the throttling tooth 29 is inserted. At the rear end opening edge portion of the rear side body portion 33, a rear plate member 42 for closing the rear end opening is bolted. A rear boss 43 is fixed to a front surface (a surface on the inner side of the body 30) of the rear plate member 42 by a bolt 44. The rear boss 43 is fixed to the threshing barrel shaft 28 by a bolt 45. The rear plate member 42 is supported by the threshing cylinder shaft 28 via the rear side boss 43 so as to be integrally rotatable with the threshing cylinder shaft 28.

[Intermediate body part]
The intermediate body portion 34 includes a plurality of (for example, two) intermediate body portion components 46 in which the intermediate body portion 34 is divided (for example, divided into two) in the circumferential direction of the body 30. The intermediate body portion 34 is formed with a hole 34a into which the base (bolt 29a) of the throttling tooth 29 is inserted. The intermediate body portion component member 46 is formed of a substantially semi-cylindrical plate (roll-formed plate). The middle body portion 34 is a half structure which is divided into two in the circumferential direction of the body 30. The two middle body component members 46 are constituted by the same member, and the arrangement of the teeth 29 is the same (see FIG. 16). Each intermediate fuselage component 46 is removable from the front fuselage 32 and the rear fuselage 33. A connecting portion 46 a connected to the other intermediate body portion constituting member 46 is provided at an edge portion on one side of the intermediate body portion constituting member 46 in the circumferential direction of the body 30. The connecting portion 46 a is bolted to the other intermediate body portion component member 46 in a state of being pressed from the inner peripheral side.

[Connection member]
As shown in FIGS. 4 to 7, in the inside of the body 30, a connecting member 47 that connects the front body 32 and the middle body 34 and that connects the rear body 33 and the middle body 34. Is provided. The connection member 47 includes a front connection portion 48 (corresponding to a “connection member” according to the present invention), a rear connection portion 48, and a plurality of front and rear direction portions 55. The connecting portion 48 is provided between the front body 32 and the intermediate body 34 and between the rear body 33 and the intermediate body 34. The front connecting portion 48 and the rear connecting portion 48 are configured by the same member.

  The front connecting portion 48 is provided at the boundary between the front body 32 and the middle body 34 in the inside of the body 30 and extends over the inner peripheral surface of the front body 32 and the inner peripheral surface of the middle body 34. ing. The front connecting portion 48 connects the front body portion 32 and the intermediate body portion 34, and connects the front end portions of the intermediate body portion component members 46 adjacent in the circumferential direction of the body 30. The front connecting portion 48 is detachably fixed to the front body 32 by a bolt 49A, and is fixed to the intermediate body 34 (intermediate body component 46) by a bolt 49B.

  The rear connecting portion 48 extends across the inner peripheral surface of the rear body portion 33 and the inner peripheral surface of the intermediate body portion 34 at the boundary portion between the rear body portion 33 and the middle body portion 34 inside the body 30. Is provided. The rear side connecting portion 48 connects the rear side body portion 33 and the intermediate body portion 34 and connects the rear end portions of the intermediate body portion constituting members 46 adjacent in the circumferential direction of the body 30. The rear connection portion 48 is detachably fixed to the rear body portion 33 by a bolt 49A, and is fixed to the intermediate body portion 34 (intermediate body portion component member 46) by a bolt 49B.

  The bolts 49A and 49B are bolts in which hexagonal holes are formed in the bolt heads. In order to fix the front body 32 and the rear body 33, in order to reduce the wear of the bolt head, a bolt 49A having a low height is used. In order to fix the intermediate body portion 34, in order to easily operate the bolt 49B, a bolt 49B having a high height of a bolt head is used. Thereby, the attachment / detachment operation can be easily performed for the intermediate body portion 34 to be removed at the time of maintenance.

  As shown in FIGS. 7 to 9, the connecting portion 48 is provided along the inner peripheral surface of the body 30. The connecting portion 48 is formed of a plate material formed in a substantially annular shape around the rotation axis Y1 along the inner peripheral surface of the body 30. The connecting portion 48 is divided into a plurality of (for example, two) connecting portion components 51 in the circumferential direction of the body 30. That is, the connection part 48 is a half structure divided into two in the circumferential direction of the body 30. The two connecting portion components 51 are constituted by the same member.

  The connection portion constituent member 51 is formed of a substantially semi-annular plate material. A to-be-polymerized portion 51a is formed at one end of the connecting portion forming member 51 in the circumferential direction of the body 30, and the other connecting portion forming member 51 is overlapped. In the connecting portion constituent member 51, the boundary portion between the portion to be polymerized 51a and the other portion has a step shape so that the portion to be polymerized 51a is positioned on the radially inner circumferential side of the body 30 than the other portion. It is formed. Bolt holes 51 b for bolts 49 </ b> A and 49 </ b> B are formed in the connecting portion constituent member 51.

  A plurality of (for example, four) notch portions 51c into which the base portions (bolts 29a) of the throttling teeth 29 and the nuts 29b are formed are formed in the connecting portion constituting member 51 (see FIGS. 6 and 10). In the connecting portion constituent member 51, two notches 51c are open on one side in the direction of the rotation axis Y1, and two notches 51c are open on the other side in the direction of the rotation axis Y1. The notch 51 c opening to one side and the notch 51 c opening to the other side are misaligned in the circumferential direction of the body 30.

  Ribs 50 which rise from the inner circumferential surface of the connecting portion 48 toward the inner side in the radial direction of the body 30 are provided on the entire circumference of the inner circumferential surface of the connecting portion 48 around the rotation axis Y1. The height h1 from the inner circumferential surface of the connecting portion 48 of the rib 50 is the same (including substantially the same) over the entire circumference around the rotation axis Y1. On the inner peripheral side of the rib 50, there is a circular opening 50a centered on the rotation axis Y1. In the portion of the rib 50 corresponding to the portion to be polymerized 51a, a recess 50b into which the portion to be polymerized 51a is inserted is formed.

  The protrusion 50c provided on the rib 50 is inserted into the opening 51d formed in the connecting portion 48 (the connecting portion forming member 51). A plurality of (for example, four) openings 51 d are formed in the connecting portion 48 at intervals around the rotation axis Y1. The openings 51 d are long holes that are long in the circumferential direction of the body 30.

  A plurality of (for example, four) protrusions 50c are formed in the rib 50 at intervals around the rotation axis Y1. The protrusion 50 c protrudes outward in the radial direction of the body 30 from a portion of the rib 50 facing the inner peripheral surface of the connecting portion 48 (the outer peripheral portion of the rib 50). The protrusions 50 c are provided at intervals around the rotation axis Y 1 in a state of protruding outward from the connection portion 48 in the radial direction of the body 30. The protrusion 50 c protrudes outward beyond the outer peripheral surface of the connecting portion 48 in the radial direction of the body 30, and does not protrude outward beyond the outer peripheral surface of the body 30. The protrusion 50c protrudes so that the end surface of the radial direction outer side among the protrusions 50c is flush with (includes substantially flush with) the outer peripheral surface of the body 30.

  The connecting portion 48 and the rib 50 are in a state in which one of the connecting portion constituent members 51 is superimposed on the overlapping portion 51a on the other connecting portion constituent member 51 side and in a state where the projection 50c is fitted into the opening 51d. It is fixed (for example, welding fixed). The outer peripheral surface of one connecting portion forming member 51 and the outer peripheral surface of the other connecting portion forming member 51 are flush with each other. That is, the outer peripheral surface of one connecting portion forming member 51 and the outer peripheral surface of the other connecting portion forming member 51 are located on a circle (concentric circle) centered on the rotation axis Y1.

  The front-rear direction portion 55 extends in the front-rear direction across the front connecting portion 48 and the rear connecting portion 48. The front-rear direction portion 55 is provided across the inner peripheral surface of the front connecting portion 48 and the inner peripheral surface of the rear connecting portion 48. The front end portion of the front and rear direction portion 55 is fixed (for example, welded and fixed) to the inner peripheral surface of the front connecting portion 48 and the front rib 50. The rear end portion of the front-rear direction portion 55 is fixed (for example, welded and fixed) to the inner peripheral surface of the rear connection portion 48 and the rear rib 50.

  The front side connecting portion 48 and the rear side connecting portion 48 are integrated by the front side connecting portion 48 and the rear side connecting portion 48 being connected by the front-rear direction portion 55. That is, the front connecting portion 48, the rear connecting portion 48, and the front-rear direction portion 55 are configured (unitized) as a unit. The front-rear direction portion 55 is formed of a member having a substantially L-shaped cross section. A plurality of front and rear direction portions 55 are arranged at equal angular intervals around the rotation axis Y1. In the present embodiment, four front and rear direction portions 55 are arranged at intervals of 90 degrees around the rotation axis Y1.

  The height h2 from the inner circumferential surface of the connecting portion 48 of the front-rear direction portion 55 is the same as (including substantially the same as) the height h1 from the inner circumferential surface of the connecting portion 48 of the rib 50. In the present embodiment, the height h2 from the inner peripheral surface of the connection portion 48 of the front and back direction portion 55 is a height at which the front and rear direction portion 55 does not protrude from the inner peripheral edge of the rib 50 toward the opening 50a (connection of the rib 50 The height is set slightly lower than the height h1 from the inner peripheral surface of the portion 48).

[Linking part alignment part]
As shown in FIG. 11, the front body 32 is aligned with the front connecting portion 48 around the rotation axis Y 1, and the front body 32 is aligned with the front connecting portion 48 in the rotation axis Y 1 direction. The connection portion alignment portion 53F is provided. Connection on the rear side that aligns the position of the rear body 33 with the rear connecting portion 48 around the rotation axis Y1 and that aligns the position of the rear body 33 with the rear connecting portion 48 in the rotation axis Y1 direction A part alignment part 53B is provided.

  The front connection portion alignment portion 53F is provided across the front body portion 32 and the front connection portion 48. The front connection portion alignment portion 53F has a plurality of (for example, four) protrusions 50c and a plurality (for example, two) intrusive portions 32b. The insertion portion 32b is inserted between the protrusions 50c, and is provided at an end (rear end) on the front side of the connecting portion 48 of the front and rear end portions of the front body portion 32. In other words, between the entry portions 32 b at the rear end of the front body portion 32, a recess 32 c into which the protrusion 50 c is formed is formed. The distance d between the protrusions 50c and the width b of the intruding portion 32b around the rotation axis Y1 are set such that the intruding portion 32b fits between the protrusions 50c.

  The rear connection portion alignment portion 53B is provided across the rear body portion 33 and the rear connection portion 48. The rear connection portion alignment portion 53B has a plurality of (for example, four) protrusions 50c and a plurality (for example, two) intrusive portions 33b. The insertion portion 33 b is to be inserted between the protrusions 50 c, and is provided at an end (front end) of the front and rear ends of the rear body 33 on the rear side of the connecting portion 48. In other words, between the entry portions 33b at the front end of the rear body portion 33, the recess 33c into which the protrusion 50c is formed is formed. The distance d between the protrusions 50c and the width b of the intruding portion 33b around the rotation axis Y1 are set such that the intruding portion 33b fits between the protrusions 50c.

[Torso alignment unit]
There is provided an inter-body alignment portion 56 for aligning the position of the intermediate body portion 34 with respect to the rear side body portion 33 around the rotational axis Y1. The inter-body alignment portion 56 is provided across the rear side body portion 33 and the middle body portion 34. The inter-body alignment portion 56 includes a plurality of (for example, two) concave portions 33 d and a plurality (for example, two) convex portions 46 b. The recessed portion 33 d is formed in the ingress portion 33 b (specifically, the width central portion of the ingress portion 33 b) in the front end portion of the rear side body portion 33. The convex portion 46 b is inserted into the concave portion 33 d and is formed at the rear end of the intermediate body portion 34.

[Match mark]
A matching mark M indicating the correct positional relationship between the rear fuselage portion 33 and the rear connection portion 48 is provided across the rear body portion 33 and the rear connection portion 48. The alignment mark M has a mark (concave portion 33 d) on the rear side body portion 33 side and a mark 51 e on the rear side connection portion 48 side. In the present embodiment, the recess 33 d functions as a mark on the rear side body portion 33 side. The mark 51 e is provided in a portion between the protrusions 50 c in the rear connection portion 48. The mark 51 e is formed in a concave shape that opens toward the rear side.

  Here, the alignment mark M (the mark 51e on the front side of the connecting portion 48 and the mark 51e on the rear side of the connecting portion 48) can be used also when assembling the connecting member 47. Specifically, when assembling the connecting member 47, the mark 51e on the side of the connecting portion 48 on the front side is aligned with the mark 51e on the side of the connecting portion 48 on the rear side around the rotational axis Y1. The connector 48 and the connector 48 on the rear side are aligned.

[Method of manufacturing a threshing cylinder]
Next, a method of manufacturing the threshing cylinder 11 will be described with reference to FIGS. As shown in FIG. 12 to FIG. 15, the manufacturing method of the threshing cylinder 11 includes a rear body attachment step (see FIG. 12), a front body attachment step (see FIG. 13), and an intermediate body attachment step (figure 14) and a tooth attachment step (see FIG. 15).

  As shown in FIG. 12, the rear body attachment step is a step of attaching the rear body 33 to the rear connection portion 48. As described above, the fixation of the rear body portion 33 to the rear connection portion 48 is performed by the bolts 49A.

  In the rear body mounting step, the entry 33b enters between the projections 50c (in other words, the projection 50c enters the recess 33c), and the front end of the rear body 33 in the rotational axis Y1 direction. When the portion corresponding to the recess 33c abuts on the projection 50c, the rear connecting portion 48 is restricted from entering the inside of the rear body 33 from the front end opening edge of the rear body 33. Become. Then, when the insertion portion 33b abuts on the projection 50c around the rotation axis Y1, the rotation of the rear body portion 33 about the rotation axis Y1 with respect to the connection portion 48 on the rear side is restricted. become.

  Thus, the position of the rear body 33 with respect to the rear connecting portion 48 in the rotational axis Y1 direction is aligned, and the position of the rear body 33 with respect to the rear connecting portion 48 around the rotational axis Y1 is aligned. It will be.

  Here, even if the front body portion 32 is attached to the rear connection portion 48 by mistake in the rear body attachment step, the front body portion 32 has the mark 51 e on the rear connection portion 48 side. Because there is no mark corresponding to, you will notice an error at this point. In other words, attaching the rear side connecting portion 48 to the rear side body portion 33 by the recess 33 d on the rear side body portion 33 side corresponding to the mark 51 e on the rear side connecting portion 48 (rear side The correct combination of the body 33 and the rear connection 48 will be known.

  As shown in FIG. 13, the front body attachment step is a step of attaching the front body 32 to the front connecting portion 48. As described above, the fixation of the front body portion 32 to the front connection portion 48 is performed by the bolt 49A.

  In the front torso mounting step, the entry 32b enters between the protrusions 50c (in other words, the protrusion 50c enters the recess 32c), and the rear end of the front torso 32 in the direction of the rotational axis Y1. When the portion corresponding to the recess 32 c abuts on the protrusion 50 c, the front connecting portion 48 is restricted from entering the front body 32 from the rear end opening edge of the front body 32. Then, when the insertion portion 32b abuts against the projection 50c around the rotation axis Y1, the front body 32 is restricted from rotating about the rotation axis Y1 with respect to the front connection portion 48. .

  Thus, the position of the front body 32 with respect to the front connecting portion 48 in the rotational axis Y1 direction is aligned, and the position of the front body 32 with respect to the front connecting portion 48 around the rotational axis Y1 is aligned.

  Here, the roll joint P1 of the front body 32 and the roll joint P2 of the rear body 33 function as a position alignment unit for aligning the front body 32 with the rear body 33 around the rotational axis Y1. . The roll joints P1, P2 can be understood as the roll start position. When attaching the front body portion 32 to the front connection portion 48, the rotational axis center is located by aligning the roll joint P1 of the front body portion 32 with the roll joint P2 of the rear body portion 33 around the rotational axis Y1. The position of the front body 32 with respect to the rear body 33 around Y1 is aligned.

  As shown in FIG. 14, the intermediate body attachment step is a step of attaching the intermediate body portion 34 (intermediate body portion component member 46) to the front and rear connection portions 48. As described above, the fixation of the intermediate body portion 34 (intermediate body portion component member 46) to the front and rear connection portions 48 is performed by the bolts 49B.

  In the intermediate body portion attaching step, the position of the intermediate body portion constituting member 46 with respect to the rear side body portion 33 around the rotation axis Y1 is aligned by inserting the convex portion 46b into the concave portion 33d. The front end portion of the intermediate body portion component member 46 abuts on the front projection 50c and the rear end portion (inset portion 32b) of the front body portion 32 and the rear end portion of the intermediate body portion component member 46 is on the rear side. By abutting on the protrusion 50c and the front end (inset portion 33b) of the rear side body portion 33, the position of the intermediate body portion constituting member 46 in the direction of the rotation axis Y1 is aligned.

  As shown in FIG. 15, the squeezing tooth attachment step is a step of attaching the throttling teeth 29 to the front side body portion 32, the rear side body portion 33 and the middle body portion 34. In the squeezing tooth attachment step, with the front body portion 32, the rear side body portion 33 and the intermediate body portion 34 attached to the connecting member 47, the squeezing teeth 29 are the front body portion 32, the rear side body portion 33 and the intermediate body It is attached to the part 34.

  Here, as shown in FIG. 16, the connecting member 47 does not overlap the hole 32 a of the front body 32, the hole 33 a of the rear body 33, and the hole 34 a of the middle body 34. Specifically, the front side connecting portion 48 does not overlap with the hole 32 a of the front side body portion 32 and the hole 34 a of the middle body portion 34, and the rear side connecting portion 48 is of the rear side body portion 33. The holes 33a and the holes 34a of the middle body portion 34 do not overlap, and the front-to-rear direction portions 55 do not overlap with the holes 34a of the middle body portion 34. Thus, with the front body 32, the rear body 33 and the intermediate body 34 attached to the connecting member 47, the squeezing teeth 29 do not interfere with the connecting member 47, and the squeezing teeth 29 are attached to the body 30. It can be attached.

[Another embodiment]
(1) In the above-described embodiment, the throttling teeth 29 are attached to the front body portion 32, the rear body portion 33 and the middle body portion 34 in the squirrel-tooth attaching process. However, as shown in FIG. 17, in the middle body portion attaching process, the teeth 29 may be attached to the middle body portion 34.

(2) In the above embodiment, the front connection portion positioning portion 53F is configured such that the position of the front body portion 32 with respect to the front connection portion 48 in the rotational axis Y1 direction by the entry portion 32b entering between the protrusions 50c. And the position of the front body portion 32 with respect to the front connection portion 48 around the rotation axis Y1. Similarly, in the rear connection portion alignment portion 53B, the position of the rear body portion 33 with respect to the rear connection portion 48 in the rotational axis Y1 direction is matched by the entry portion 33b entering between the protrusions 50c. Also, the position of the rear side body portion 33 with respect to the rear side connecting portion 48 around the rotation axis Y1 is configured to be aligned.

  However, as shown in FIG. 18, the rear end of the front body 32 abuts against the projection 50c in the direction of the rotational axis Y1 without providing the intruding portion 32b, whereby the front side in the rotational axis Y1 direction is connected. The position of the front body portion 32 with respect to the portion 48 may be matched. Similarly, the rear end of the rear body portion 33 abuts against the projection 50c in the direction of the rotational axis Y1 without providing the intruding portion 33b, whereby the rear side with respect to the rear connecting portion 48 in the rotational axis Y1 direction is provided. The position of the body 33 may be aligned.

  Alternatively, as shown in FIG. 19, a plurality of projections 32 d are provided at an interval around the rotation axis Y 1 inside the front body portion 32 and intrudes between the projections 32 d in the front connecting portion 48. The portion 48a is provided, and the insertion portion 48a enters between the protrusions 32d, whereby the position of the front body portion 32 with respect to the front connecting portion 48 in the rotational axis Y1 direction is aligned, and the front side around the rotational axis Y1. The position of the front body portion 32 with respect to the connecting portion 48 may be matched. Similarly, a plurality of projections 33e are provided at intervals around the rotation axis Y1 inside the rear side body portion 33, and the connection portion 48 on the rear side is provided with the intruding portion 48a which is inserted between the projections 33e. The position of the rear body portion 33 with respect to the rear connecting portion 48 in the rotational axis Y1 direction is aligned by the insertion of the intruding portion 48a between the protrusions 33e, and the rear side around the rotational axis Y1. The position of the rear body portion 33 with respect to the connecting portion 48 may be matched.

(3) In the above embodiment, the inter-body alignment portion 56 has the recess 33 d on the rear body 33 side, and the protrusion 46 b on the middle body 34 side, which enters into the recess 33 d. ing. However, the inter-body alignment portion 56 may be provided with a recess on the intermediate body portion 34 side and a protrusion on the rear side body portion 33 while entering the recess.

(4) In the above embodiment, the inter-body alignment portion 56 is provided across the rear side body 33 and the intermediate body 34. However, in place of or together with this, the inter-body positioning portion for aligning the position of the middle body 34 with the front body 32 around the rotation axis Y1 extends over the front body 32 and the middle body 34 It may be provided.

(5) In the above embodiment, the mark (recessed portion 33d) on the rear body portion 33 side is provided in the entry portion 33b of the rear body portion 33, and the mark 51e on the rear connection portion 48 is the rear side. It is provided in the part between processus | protrusion 50c among the connection parts 48 of this. However, the location where the mark (concave portion 33 d) on the rear body portion 33 side is provided is not limited to the portion of the rear body portion 33 according to the above embodiment, and on the rear connection portion 48 side. The place where the mark 51e is provided is not limited to the place according to the above-described embodiment in the rear connecting part 48.

(6) In the above embodiment, the protrusion 50 c protrudes so that the end face of the protrusion 50 c on the outer side in the radial direction is flush with the outer peripheral surface of the body 30. However, the protrusion 50 c may be protruded such that the end surface of the protrusion 50 c on the outer side in the radial direction is positioned inward of the outer peripheral surface of the body 30 in the radial direction.

(7) In the above embodiment, the ribs 50 are provided on the entire circumference of the rotation axis Y1 on the inner circumferential surface of the connecting portion 48. However, the rib 50 may be provided on a part (for example, a plurality of parts) around the rotation axis Y1 on the inner peripheral surface of the connecting portion 48.

(8) In the above embodiment, the height h1 of the rib 50 from the inner circumferential surface of the connecting portion 48 is the same over the entire circumference around the rotation axis Y1. However, the height h1 of the rib 50 from the inner circumferential surface of the connecting portion 48 may be different around the rotation axis Y1.

(9) In the above embodiment, the height h2 from the inner peripheral surface of the connection portion 48 of the front and rear direction portion 55 is a height at which the front and rear direction portion 55 does not protrude from the inner peripheral edge of the rib 50 toward the opening 50a (rib 50) is set to a height slightly lower than the height h1 from the inner peripheral surface of the connecting portion 48). However, the height h2 of the front-rear direction portion 55 from the inner circumferential surface of the connection portion 48 is the height at which the front-rear direction portion 55 spills out from the inner peripheral edge of the rib 50 toward the opening 50a (inside of the connection portion 48 of the rib 50 It may be set to a height slightly higher than the height h1 from the circumferential surface).

(10) In the above embodiment, the body 30 is divided into three in the front-rear direction. However, the body 30 may be divided into four or more in front and back. Alternatively, the body 30 may be divided into two in front and back.

(11) In the above embodiment, the intermediate body portion 34 is divided into two in the circumferential direction of the body 30. However, the middle body portion 34 may be divided into three or more in the circumferential direction of the body 30.

  The present invention can also be used for ordinary combine, as well as self-eliminating combine.

DESCRIPTION OF SYMBOLS 10 threshing apparatus 11 threshing cylinder 28 threshing cylinder shaft 29 throttling teeth 30 body 32 front body part (body part)
32b Inset 33 Rear fuselage (body)
33b Intrusive part 33d recessed part, mark on the rear body side 34 Intermediate body part (body part)
46b convex part 48 connection part (connection member)
50c projection 51e mark on the rear side of the connection portion 53B rear side connection portion alignment portion (alignment portion, connection member alignment portion)
53F Front connector alignment part (alignment part, connection member alignment part)
56 Alignment unit between body (alignment unit, alignment unit between body)
b Width d Distance M Alignment mark P1 Roll joint P2 Roll joint Y1 Axis of rotation

Claims (12)

A combine equipped with a threshing device for threshing a reaping crop by a threshing cylinder,
The threshing cylinder includes a threshing cylinder shaft extending in the front-rear direction, and a body supported by the threshing cylinder shaft and having a plurality of throttling teeth attached to an outer peripheral portion thereof.
The torso has a plurality of torso portions which are integrally rotated while the torso is divided back and forth,
A combine including an alignment unit for aligning the positions of the plurality of body units around the rotation axis of the threshing barrel.   The combine according to claim 1 provided with a connecting member which connects said body parts adjacent to back and forth.   The alignment member includes a connecting member alignment portion which is provided across the body portion and the connection member and which aligns the position of the body portion with respect to the connection member around the rotation axis. Combine according to 2. The connecting member is provided along an inner circumferential surface of the body,
The connecting member positioning portion is provided with a plurality of projections provided at intervals around the rotation axis in a state of protruding from the connecting member toward the outer side in the radial direction of the body, and front and rear ends of the body portion The combine according to claim 3, further comprising: an intruding portion provided at an end portion on the connecting member side of the portion and intruding between the protrusions.   5. The combine according to claim 4, wherein an interval between the protrusions and a width of the intruding portion around the rotation axis are set such that the intruding portion fits between the protrusions.   The combine according to any one of claims 2 to 5, wherein a matching mark indicating the correct positional relationship between the body and the connecting member is provided across the body and the connecting member. A matching mark is provided across the body and the connecting member to indicate the correct positional relationship between the body and the connecting member.
The mark on the body portion side among the mating marks is provided in the entry portion of the body portion,
The combine according to claim 4 or 5 in which a mark by the side of said connection member among said matching marks is provided in a portion between said projections among said connection members. The torso is divided back and forth into three of the torso portions;
The connecting members are, in three successive body parts, back and forth, between the front body part and the middle body part and between the rear body part and the middle body part. Each is provided,
The mark on the front side of the connection member is aligned with the mark on the connection member of the front side and the mark on the connection mark of the connection member on the rear side around the rotation axis. The combine according to claim 6 or 7 which is constituted so that and the back connecting member may be aligned.   An inter-body alignment unit which is provided as the alignment unit over the body units adjacent to each other in the front and back direction and which aligns the position of the other front and rear body with respect to the front and rear one around the rotation axis 9. A combine according to any one of the preceding claims, which is provided.   The alignment unit between the body parts is any of the recess provided in any one of the front and rear body parts and the other front and rear body parts, and any one of the front and rear body parts and the front and rear body parts. The combine according to claim 9, further comprising: a convex portion provided on the other side and entering the concave portion. An inter-body alignment unit which is provided as the alignment unit over the body units adjacent to each other in the front and back direction and which aligns the position of the other front and rear body with respect to the front and rear one around the rotation axis Is equipped with
The alignment unit between the body parts is any of the recess provided in any one of the front and rear body parts and the other front and rear body parts, and any one of the front and rear body parts and the front and rear body parts. And a convex portion provided on the other side and entering the concave portion,
The combine according to any one of claims 4, 5 and 7, wherein the recess is provided in the insertion portion. The body portion is formed of a rolled plate material,
The roll seams of the body function as the alignment unit,
The roll joints of the plurality of body portions are aligned around the rotation axis, and the plurality of body portions are configured to be aligned. Combine described.

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