JP2016036262A - Combine-harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine-harvester capable of improving durability although it can lighten a working power burden at the mounting/de-mounting time of an oscillation separating equipment.SOLUTION: A combine-harvester comprises an oscillating drive part 36 including: an eccentric drive shaft 46 having a rotary shaft part 46A for rotating on a transverse shaft core, and an eccentric shaft part 46B eccentric with respect to the rotary shaft part 46A; a connection member 48 extending from an oscillation separating equipment 27; and a bearing retainer 50 externally inserted relatively rotatably through a bearing 49 into the eccentric drive shaft part 46B and connected to and released from the connection member 48, and in which the bearing retainer 50 is equipped with a placing support part S capable of placing and supporting the connection member 48.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a combine, and more specifically, in a threshing device for threshing a crop supplied from a cutting unit at the front part of the machine body, being oscillated and driven by an oscillating drive unit located below the handling chamber, The present invention relates to a combine equipped with a swing sorting device that receives a threshing processed product leaked from a handling room and separates it into a grain and another processed product while swinging and transferring.

In the conventional combine, the rocking drive unit for driving the rocking sorter is configured as follows.
A rotating shaft that rotates around a horizontal axis is supported on the side wall of the threshing device, and the swing sorting device is driven to swing by an eccentric cam type swinging drive unit that is driven by the rotating shaft. The movement sorting device is pivotally connected to a swinging arm that is swingably supported by a fixed part, and the swinging arm and the swinging drive part are connected to each other by a laterally connecting shaft. There was a configuration that was driven to swing. When the swing sorting device is attached to or detached from the threshing device, the horizontal connection shaft is removed to release the connection between the swing drive unit and the swing arm, or the connection shaft is inserted to the swing drive unit. And the swing arm are connected (for example, see Patent Document 1).

JP-A-7-298765

  In the above-described conventional configuration, when attaching and detaching the swing sorting device, it is necessary to remove or attach the horizontal connecting shaft, and it is difficult to perform the attaching operation and the removing operation. That is, when the swing sorting device is taken out, it is necessary to pull out the connecting shaft sideways while supporting the weight of the swing sorting device by hand, which has the disadvantage of increasing the labor burden on the operator. Similarly, when the swing sorting device is mounted, the swing drive unit and the swing arm must be aligned while supporting the weight of the rear side of the swing sorting device by hand. The burden on the workers was increasing.

In order to eliminate the above disadvantages, the following improved configuration has been considered.
In the connecting portion connecting the swing sorting device and the swing drive unit, the swing sorting device is separated into both sides with the eccentric shaft portion sandwiched at the pivot connecting portion with respect to the rotating eccentric shaft portion. It is the structure provided with the 1st connection member connected integrally, and the 2nd connection member connected with the 1st connection member so that attachment or detachment is possible in the state where the eccentric shaft part was inserted.

  In this improved configuration, the weight can be borne by temporarily supporting the first connecting member on the eccentric shaft portion in a state where the connection is released, and the labor load is reduced at the time of attaching / detaching the swing sorting device. It is possible. However, this configuration still has the following disadvantages.

  The first connecting member and the second connecting member are separated on both sides with the eccentric shaft portion interposed therebetween, and the first connecting member and the second connecting member separated on both sides with the eccentric shaft portion sandwiched are provided. Because it is manufactured as a separate body, a slight step is formed in a part in the circumferential direction at the location where the eccentric shaft is sandwiched due to errors in assembly when the two are connected. Then, there is a risk that rattling may occur with the rotation motion. As a result, there is a disadvantage that as the use is continued, the rattled portion is damaged at an early stage and the durability is lowered.

  Therefore, there has been a demand for a combine that can reduce the labor burden during the attaching / detaching operation of the swing sorting device and can improve the durability.

The characteristic configuration of the combine according to the present invention is as follows:
A threshing device for threshing a crop supplied from a cutting part at the front of the machine body is swayed by a swaying drive unit located below the handling room, and the threshing processed product leaked from the handling room It is equipped with a rocking sorting device that separates into grains and other processed materials while receiving and rocking and transferring,
The swing drive unit is
A rotating shaft that rotates around a lateral axis, and an eccentric drive shaft having an eccentric shaft that is eccentric with respect to the rotating shaft;
A connecting member extending from the swing sorting device;
A bearing holder that is extrapolated relative to the eccentric shaft portion via a bearing, and that can be connected to and disconnected from the connecting member;
The bearing holder includes a mounting support portion that can mount and support the connecting member.

  According to the present invention, when the swing sorting device is attached or detached, it can be dealt with by releasing the connection between the connecting member and the bearing holder or connecting them. Then, when performing such connection work or connection release work, the connection member is placed and supported by the placement support portion provided in the bearing holder, so that a part of the weight of the swing sorting device is borne. You can work in the state. That is, it is possible to perform the attaching / detaching operation of the swing sorting device with a small labor load.

  The bearing holder is inserted into the eccentric shaft portion so as to be relatively rotatable via a bearing, and the portions where the eccentric shaft portion is inserted are formed in a series in a circumferential direction. Can do. That is, since it can be processed and formed with good precision over the entire circumference, there is little risk that a slight step will be formed in a part of the circumferential direction and rattling will occur with the rotational movement. Thus, the swing sorting device can be driven to swing satisfactorily.

  Therefore, it has become possible to provide a combine capable of reducing the labor load during the attaching / detaching operation of the swing sorting device and capable of improving the durability.

In the present invention, the bearing holder includes, as the mounting support portion, a holder-side flange portion that protrudes radially outward from a cylindrical holding portion that surrounds the outer periphery of the bearing,
The connecting member includes a connecting member side flange portion corresponding to the holder side flange portion,
It is preferable that the holder side flange portion and the connecting member side flange portion are bolt-connected.

  According to this structure, when connecting a connection member and a bearing holder, a connection member can be supported in the state which mounted the connection member side flange part in the holder side flange part. And they can be bolt-connected in a state where both flange portions overlap each other.

  Further, when the connection between the connecting member and the bearing holder is released, the bolt connection between the flanges of both is released. Even if the bolt connection is released, the flange portion on the connection member side is placed on the flange portion on the holder side, and the connection member can be supported.

  Therefore, it becomes easy to perform a connection operation and a connection release operation between the connection member and the bearing holder by using the flange portion as the mounting support portion also as a connection member.

  In the present invention, it is preferable that a fitting engagement portion for alignment is formed between the bearing holder and the connecting member.

  According to this configuration, the fitting engagement portion formed between the bearing holder and the connection member when the connection member that has been released from the connection is placed and supported on the placement support portion of the bearing holder. Can be aligned so that their relative positions are in an appropriate state.

  Therefore, when connecting the connecting member and the bearing holder, it is possible to accurately position the bearing holder inserted on the eccentric swing shaft at an appropriate connecting position with respect to the connecting member. Is easy to do.

  In the present invention, it is preferable that a plurality of the mounting support portions are provided at different positions in the circumferential direction of the bearing holder.

  According to this configuration, the bearing holder can place and support the connecting member in any of the plurality of placement support portions provided at different positions in the circumferential direction. That is, the bearing holder rotates around the axis of the eccentric shaft portion and is supported by being mounted on any one of the plurality of mounting support portions regardless of the phase relative to the connecting member. Can do. As a result, there is no inconvenience such as mounting the bearing holder in accordance with a specific rotational phase.

  As a result, when the swing sorter is placed on and supported by the bearing holder, there is no need for troublesome work such as adjusting the bearing holder to a specific rotational phase while supporting the load of the swing sorter. It becomes easy.

  In the present invention, in the bearing holder, it is preferable that the cylindrical holding portion surrounding the outer periphery of the bearing is formed as an integrally molded product.

  According to this configuration, since the cylindrical holding portion surrounding the outer periphery of the bearing is created by an integrally molded product, a smooth circular inner peripheral surface can be obtained by processing the integrally molded product with high accuracy over the entire circumference. It is possible to form. As a result, the portion where the eccentric shaft portion is rotatably held by the bearing holder can cause a smooth swinging motion to appear along with the rotating motion.

  Therefore, it is possible to make a smooth swinging motion appear as the eccentric shaft portion rotates, and the swing sorting device can be driven to swing well over a long period of time.

In the present invention,
A shredding device for shredding the discharged matter after the threshing process is provided at the rear of the threshing device,
The power of the engine is transmitted from the drive shaft to which the power of the engine is transmitted to the rotation shaft of the shredding device via the relay transmission shaft,
It is preferable that the belt transmission mechanism that links the relay transmission shaft and the rotation shaft is constituted by a plurality of parallel transmission belts.

  According to this structure, the discharged material after the threshing process in the threshing apparatus is shredded by the shredding apparatus and discharged outside the apparatus. Since the shredding device needs to rotate at a high speed to shred the waste such as straw scraps, in the belt transmission mechanism, the pulley on the output shaft side is set to a small diameter in order to increase the rotational power. There is a need.

  In this way, when the pulley on the output shaft side is set to have a small diameter and is driven to rotate at a high speed, the transmission belt may slip. In this configuration, power is transmitted from the relay transmission shaft to the output shaft via a plurality of transmission belts. It is possible to drive in a high-speed rotation state while avoiding slip.

  In the present invention, the relay transmission shaft side driven pulley to which the power from the drive shaft is transmitted and the relay transmission shaft side drive pulley to transmit the power to the rotary shaft are integrally formed. It is preferable that it is composed of a transmission rotating body.

  According to this configuration, since the driven pulley and the driving pulley provided in the relay transmission shaft are configured by one transmission rotating body, compared to the case where these pulleys are formed separately, Costs for manufacturing and assembly to the apparatus are reduced, and costs can be reduced.

  In the present invention, it is preferable that the drive shaft is a rotary shaft of a red pepper provided in the threshing apparatus.

  According to this configuration, the engine power is transmitted to the rotary shaft of the red pepper, and the red pepper is driven to rotate. Then, power is transmitted from the rotary shaft of the red pepper to the shredding device via the belt transmission device, and the shredding device is driven to rotate.

  The red pepper is driven to rotate at a higher speed than other devices in the threshing device in order to generate a sorting wind. By effectively using the power of the rotary shaft of Karatsu, which rotates at high speed in this way, it is possible to drive the shredding device at high speed with a simple transmission mechanism without increasing the speed increase ratio more than necessary. It becomes.

It is a whole side view of an ordinary combine. It is a whole top view of a normal combine. It is a transmission system diagram. It is a vertical side view of a threshing apparatus. It is a vertical side view of a rocking | swiveling drive part arrangement | positioning part. It is a vertical rear view of a rocking drive part. It is a side view which shows the connection state of a connection member and a bearing holder. It is a side view which shows the transmission structure to a shredding apparatus. It is a top view which shows the transmission structure to a shredding apparatus.

  Hereinafter, embodiments of a combine according to the present invention will be described with reference to the drawings.

〔overall structure〕
As shown in FIGS. 1 and 2, the ordinary combine includes a traveling machine body 3 including a pair of left and right front wheels 1 that cannot be steered and a pair of left and right rear wheels 2 that can be steered. At the front part of the traveling machine body 3, a cutting part 4 that cuts a crop and conveys it to the rear is supported by a cutting lift cylinder 5 so as to be driven up and down around a lateral fulcrum P1. Further, the traveling machine body 3 includes a driving unit 7 on which a driver covered by the cabin 6 is located on the front side, a threshing device 8 that performs a threshing process of crops harvested by the cutting unit 4, The grain tank 9 etc. which store the grain obtained by the threshing process by the threshing device 8 are provided. At the lower rear side of the threshing device 8, there is provided a shredding device 12 for finely chopping the discharged matter (stalks and scraps) after the threshing process in the threshing device 8 and discharging it to the outside of the machine body.
In this embodiment, when the left-right direction is defined, it is determined as the left side or the right side in the aircraft traveling direction view.

  The cutting unit 4 includes a clipper-type cutting blade 13 that cuts and harvests the crop stock, a cross feed auger 14 that collects the harvested crops in the center in the cutting width direction, and a tip side of the crop to be harvested. The rotary reel 15 is scraped toward the rear, and a feeder 16 that conveys the crops gathered in the center toward the threshing device 8 at the rear of the machine body.

  The feeder 16 has a pair of left and right endless rotating chains 18 wound and stretched in a rectangular tube-shaped feeder case 17 in the front-rear direction, and is laid over the left and right endless rotating chains 18 in the circumferential direction. The transport body 19 is provided in a state where it is provided with an appropriate interval along the transport path. The crop transferred from the lateral feed auger 14 by the transport body 19 is transported rearward and upward.

[Threshing equipment]
Next, the threshing apparatus 8 will be described.
As shown in FIG. 4, the threshing device 8 is provided along the rotating barrel 23 and its outer peripheral portion on the upper side of the internal space surrounded by the top plate 22 and the left and right side walls 8A (see FIG. 6). A handling chamber 25 is formed which has a receiving net 24 to be used and performs a handling process of the harvested cereal meal conveyed by the harvesting unit 4. In addition, a sorting processing unit 26 is provided at the lower part of the handling chamber 25 to sort the treated material leaking from the handling chamber 25 into grains and straw scraps.

  The sorting processing unit 26 receives the processed material leaked from the handling chamber 25 and collects the swing sorting device 27 that performs sieve sorting by swinging motion, the tang 28 that generates the sorting wind, and the grain (first thing). The first thing collection | recovery part 29, the second thing collection | recovery part 30 which collects second things, such as a grain with a branch, are provided.

  The first screw 31 that transversally conveys the grain collected by the first thing recovery unit 29 toward the right outer side of the threshing device 8, and the grain conveyed to the right outer side by the first screw 31 Slat conveyor type first grain conveying device 32 to be conveyed to the first, and screw conveyor type second grain conveyed further upward from the conveying terminal end of the first grain conveying device 32 and supplied to the grain tank 9 A transport device 33 (see FIGS. 1 and 2) is provided.

  Moreover, the 2nd thing collect | recovered in the 2nd thing collection | recovery part 30 was conveyed rightward outward by the 2nd screw 34 which carries out the transverse feed conveyance toward the right side outward of the threshing apparatus 8, and the 2nd screw 34. A second product reduction device 35 for returning the second product onto the swing sorting device 27 is provided.

  The 1st grain conveyance apparatus 32 is provided in the diagonal attitude | position extended toward the front upper direction from the position corresponding to the screw 31 to the upper part of the front part side of the threshing apparatus 8 in the right side part of the threshing apparatus 8. ing. Further, the second product reducing device 35 is provided in an oblique posture extending from the position corresponding to the second screw 34 toward the front upper side on the right side of the threshing device 8 at the right side portion of the threshing device 8.

  The swing sorting device 27 includes a sheave case 37 having a rectangular frame shape in a plan view that swings back and forth by the operation of a crank-type swing drive unit 36 provided at the lower rear side. Then, in the sheave case 37, the first gren pan 38 for transferring the processed material leaked from the upper side in the processed material transfer direction in the handling chamber 25, and the processed material sent out from the first gren pan 38 are received. A first sieving wire 40 extending in a cantilevered manner on the rear side in a state of being connected to a second gren pan 39 to be transferred to the rear and a transfer direction ending portion of the first gren pan 38, and a transfer direction ending portion of the first sieve wire 40 The second sieve wire 41 extending in a cantilever manner on the rear side in a state of being connected to the workpiece, the workpiece transferred by the second grain pan 39, the workpiece leaked from the first sieve wire 40 and the second sieve wire 41 And the chaff sheave 42 that performs rough selection on the processed product leaked from the lower side of the processed product transfer direction in the handling chamber 25, and finely selects the processed product leaked from the chaff sheave 42 to obtain the grain (first product). Down A grain sheave 43 that leaks to the waste collection unit 29, and a plurality of Strollacs 44 that drop grains while swinging and transferring waste straw scraps supplied from the handling chamber 25 and the chaff sheave 42 backward are provided. .

Next, the swing drive unit 36 that swings the swing sorting device 27 will be described.
As shown in FIGS. 5 and 6, the swing drive unit 36 has an eccentric drive having a rotation shaft portion 46 </ b> A that rotates about a lateral axis and an eccentric shaft portion 46 </ b> B that is eccentric with respect to the rotation shaft portion 46 </ b> A. The shaft 46, the connecting member 48 extending from the swing sorting device 27, and the eccentric shaft portion 46 </ b> B are extrapolated to be rotatable relative to each other via a bearing 49, and are connected to and connected to the connecting member 48. A releasable bearing holder 50 is provided.

  In other words, a pair of left and right rotating shaft portions 46A are supported so as to be rotatable around the same horizontal axis P2 while being inserted through the left and right side walls 8A of the threshing device 8, respectively. Further, an eccentric drive shaft 46 having an eccentric shaft portion 46B that is eccentric with respect to the rotation shaft portion 46A in a state in which the rotation shaft portions 46A on both the left and right sides are integrally installed and connected is provided. Therefore, the eccentric drive shaft 46 is rotatably supported by the left and right side walls 8A.

  The support bracket 51 is fixed in a state extending from the left and right side portions of the sheave case 37 in the swing sorting device 27 toward the rear lower side. And the connection member 48 is being fixed to the extension direction side edge part in a pair of support bracket 51, respectively.

  As shown in FIGS. 5, 6, and 7, the connecting member 48 is formed with a plate-like connecting portion 48 a that is connected and fixed to the support bracket 51 by fastening bolts at three locations on the front side, and on the rear side. A concave portion 48b into which the arc-shaped portion of the bearing holder 50 is inserted, and a pair of front and rear connecting member side flange portions 48c that are located on both front and rear sides of the concave portion 48b and are connected to the bearing holder 50 are formed.

  As shown in FIGS. 5, 6, and 7, the bearing holder 50 is integrally extended with a substantially cylindrical holding portion 50 a that surrounds the outer periphery of the bearing 49, and protruding outward in the radial direction from the holding portion 50 a. And a pair of holder-side flange portions 50b provided. The pair of holder-side flange portions 50b are integrally extended in a substantially straight line outward in the radial direction with a phase difference of about 180 degrees around the outer periphery of the holding portion 50a.

  Each of the pair of holder side flange portions 50b has a predetermined thickness in a direction intersecting the extending direction (radial direction), and a bolt insertion hole 53 through which the connecting bolt 52 is inserted along the thickness direction. Is formed. Each of the pair of front and rear connecting member side flange portions 48c is formed with a screw hole 54 into which a connecting bolt 52 is screwed and mounted at a position corresponding to the bolt insertion hole 53 of the holder side flange portion 50b. Yes.

When the connecting member 48 is connected to the bearing holder 50, as shown in FIG. 7, the arcuate protrusion 55 located on the upper side of the cylindrical holding portion 50 a in the bearing holder 50 is formed in the concave portion of the connecting member 48. The connection member 48 can be mounted on the bearing holder 50 in a state where the pair of front and rear connection member side flange portions 48c overlap the pair of holder side flange portions 50b.
Therefore, the mounting support part S which can mount and support the connection member 48 is comprised by a pair of holder side flange part 50b.

  For example, in the case where the swing sorting device 27 is mounted in the threshing device 8, the bearing member that is externally mounted on the eccentric shaft portion 46B is connected to the connecting member 48 that is connected to the swing sorting device 27. It is possible to reduce the labor burden by placing the load on the oscillating device 50 and temporarily loading the load of the swing sorting device 27.

  A fitting engagement portion 56 for alignment is formed between the connecting member 48 and the bearing holder 50. That is, as shown in FIG. 7, on the bearing holder 50 side, a positioning projection 57 is formed at a location facing the connecting member 48 at the base end portion of the pair of holder-side flange portions 50b. . On the other hand, a positioning recessed portion 58 is formed on the connecting member 48 side at a location facing the bearing holder 50 at the base end portion of the pair of connecting member side flange portions 48c.

  When the connecting member 48 is placed on the bearing holder 50, the positioning projections 57 and the positioning recesses 58 are fitted together, so that the relative position between the connecting member 48 and the bearing holder 50 is appropriately set. It can be positioned at a position for connection (see FIG. 5). Accordingly, the engaging portion 56 is configured by the protrusion 57 and the recessed portion 58.

  The connecting member 48 is placed on the bearing holder 50 in the state of being positioned as described above, and the bolt 52 is inserted through the bolt insertion hole 53 from the lower side of the pair of holder-side flange portions 50b to connect the connecting member-side flange. The screw hole 54 formed in the portion 48c is screwed and attached. Then, the connecting member 48 and the bearing holder 50 are connected and fixed by tightening the bolts 52. The bolt insertion hole 53 is set to have an inner diameter that is slightly larger than the outer dimension of the bolt 52 so that an assembly error can be absorbed.

  The bearing holder 50 is formed symmetrically with respect to the center line extending along the center of the holder-side flange portion 50b as viewed in the axial direction of the eccentric shaft portion 46B. Therefore, for example, even when the bearing holder 50 is rotated 180 degrees around the axis of the eccentric shaft portion 46B from the mounting support state as shown in FIG. 7, the same mounting state as that shown in FIG. A stationary support state can be obtained. In other words, the bearing holder 50 is provided with a plurality (two) of mounting support portions S at different positions that are 180 degrees out of phase in the circumferential direction.

  The connecting member 48 and the bearing holder 50 are each made of an integrally molded product by casting, and the parts where the members are connected are precisely machined. In particular, the cylindrical holding portion 50a that holds the bearing 49 is formed with a circular inner peripheral surface with high precision by machining so that there is no risk of rattling due to driving, and smooth swing driving can be performed. .

  Although the transmission structure will be described later, as shown in FIG. 6, an input pulley 59 is provided on the outer side of the side wall 8A of the left rotation shaft portion 46A among the left and right rotation shaft portions 46A. Then, the power from the engine 10 is transmitted to the eccentric drive shaft 46. When the eccentric drive shaft 46 rotates, the eccentric shaft portion 46B rotates around the axis P2 of the rotation shaft portion 46A, and the bearing holder 50 and the connecting member 48 reciprocate up and down integrally. The swing sorting device 27 is driven to swing. In addition, balance weights BW for suppressing body vibrations associated with driving of the swing sorting device 27 are provided at positions on the outer side of the left and right side walls 8A in the left and right rotation shaft portions 46A.

[Transmission structure]
Next, the transmission structure will be described.
As shown in FIG. 3, after the power of the engine 10 is transmitted to the travel input shaft 61 for the transmission case 60, the rotary shaft 62 of the carp 28 configured to serve as a counter shaft from the travel input shaft 61 is used. It is transmitted to the input pulley 63 provided at the right end.

  A first drive pulley 64 is provided at the left end of the rotary shaft 62 of the carp 28, and power is transmitted from the first drive pulley 64 to the input pulley 67 provided on the relay shaft 66 via the transmission belt 65. The relay shaft 66 includes a handling cylinder output pulley 68 that supplies power to the handling cylinder 23, a feeder output pulley 69 that supplies power to the feeder 16, the first screw 31 and the second screw 34, and swinging. A transfer output pulley 70 that supplies power to the drive unit 36 is provided.

  Then, power is transmitted from the output cylinder 68 for the handling cylinder to the transmission pulley 72 for the handling cylinder 23 via the transmission belt 71 for the handling cylinder. Further, power is transmitted from the feeder output pulley 69 to the transmission pulley 74 for the feeder 16 via the feeder transmission belt 73. Although not described in detail, the power transmitted from the transmission pulley 74 to the feeder 16 is the cutting blade. 13 and the transverse feed auger 14 are also transmitted.

  Power is transmitted from the transport output pulley 70 to the first screw 31 and the second screw 34 via the transport transmission belt 75. A reversing pulley 76 for reversing the rotational power is provided in the middle of the transmission of the conveying power transmission belt 75, and a swing driving unit is provided from the reversing pulley 76 via a transmission belt 77 for swing driving and an input pulley 59. Power is transmitted to 36.

  The rotary shaft 62 of the carp 28 is provided with a second drive pulley 78 integrally with the first drive pulley 64, and power is transmitted from the second drive pulley 78 to the shredding device 12. That is, as shown in FIGS. 8 and 9, the first belt transmission mechanism is moved from the second drive pulley 78 provided on the rotary shaft 62 of the carp 28 to the driven pulley 81 provided on the relay transmission shaft 80 located at the front and rear intermediate portion. Power is transmitted via 82, and power is transmitted via the second belt transmission mechanism 86 from the relay drive pulley 83 provided on the relay transmission shaft 80 to the driven pulley 85 provided on the rotary shaft 84 of the shredding device 12. Communicated.

  In order to perform the shredding process of the shredding device 12 satisfactorily, it is necessary to transmit high-speed power to the shredding device 12. Therefore, the driven pulley 81 provided on the relay transmission shaft 80 is formed to have a smaller diameter than the second drive pulley 78, and the driven pulley 85 provided on the rotating shaft 84 is provided on the relay transmission shaft 80. The relay drive pulley 83 is formed with a small diameter. That is, the rotational power of the rotary shaft 62 of the carp 28 is increased and transmitted to the shredding device 12.

  As shown in FIG. 9, the driven pulley 81 and the relay drive pulley 83 are configured by a single transmission rotating body 87 that is integrally molded. With this configuration, the cost is reduced by reducing the number of parts and improving the assembly workability.

  In order to increase the speed increase rate without increasing the diameter of the second drive pulley 78 more than necessary, the driven pulley 85 provided on the rotating shaft 84 is set as small as possible. And even if it is such a small diameter driven pulley 85, the 2nd belt transmission mechanism 86 which transmits motive power from the relay transmission shaft 80 to the rotating shaft 84 of the shredding device 12 so that it may not slip is arranged in parallel. It consists of a transmission belt. The second belt transmission mechanism 86 is not limited to two transmission belts, and may include three or more transmission belts.

[Another embodiment]
(1) In the above-described embodiment, the pair of holder-side flange portions 50b constituting the mounting support portion S are integrally extended in a substantially straight line with a phase difference of 180 degrees toward the outside in the radial direction. As a configuration, the two mounting support portions S are provided at different positions with a phase difference of 180 degrees in the circumferential direction. However, instead of such a configuration, the following configuration may be used. .

  The bearing holder 50 may be configured to include three or more mounting support portions S as a plurality of positions having different phases in the circumferential direction, and the plurality of mounting support portions are even in the circumferential direction. It is not limited to those provided by being distributed to each other, but may be provided as long as they are provided at different positions in the circumferential direction. For example, it is good also as a structure which equips the outer peripheral part of the bearing holder 50 with two or more recessed parts or protrusions which can mount and support the connection member 48 in the circumferential direction.

(2) In the above embodiment, the fitting engagement portion 56 for alignment is formed between the bearing holder 50 and the connecting member 48. However, such a fitting engagement portion 56 is formed. It may not be.

(3) In the above embodiment, the holder-side flange portion 50b that constitutes the mounting support portion S is configured to also serve as a fastening means with the connecting member 48. However, the bearing holder 50 and the connecting member 48 are used. The fastening means may be formed by a member different from the member constituting the mounting support portion S.

(4) In the above embodiment, the rotary shaft 62 of the Kara 28 is also used as the drive shaft for power transmission to the shredding device 12. However, instead of such a configuration, the rotary shaft of another device is used. It may be used as a drive shaft, and a counter shaft provided outside the threshing device may be used as a drive shaft.

(5) In the above-described embodiment, the driven pulley 81 and the relay drive pulley 83 are configured by one transmission rotor 87 integrally formed. However, the driven pulley 81 and the relay drive pulley 83 are The transmission structure may be formed separately.

(6) In the above embodiment, the combine is applied to a normal combine as a combine. However, the present invention can also be applied to a self-removing combine.

  The present invention can be applied to an ordinary combiner and a self-removing combine.

DESCRIPTION OF SYMBOLS 4 Mowing part 8 Threshing apparatus 10 Engine 12 Shredding apparatus 25 Handling room 27 Oscillation sorting apparatus 28 Kara 36 Oscillation drive part 46 Eccentric drive shaft 46A Rotating shaft part 46B Eccentric shaft part 48 Connecting member 48c Connecting member side flange part 49 Bearing 50 Bearing holder 50a Holding part 50b Holding side flange part 56 Fitting engagement part 62 Drive shaft 80 Relay transmission shaft 81 Driven pulley 83 Drive pulley 84 Rotating shaft 86 Belt transmission mechanism 87 Transmission rotating body S Mounting support part

Claims (8)

A threshing device for threshing a crop supplied from a cutting part at the front of the machine body is swayed by a swaying drive unit located below the handling room, and the threshing processed product leaked from the handling room It is equipped with a rocking sorting device that separates into grains and other processed materials while receiving and rocking and transferring,
The swing drive unit is
A rotating shaft that rotates around a lateral axis, and an eccentric drive shaft having an eccentric shaft that is eccentric with respect to the rotating shaft;
A connecting member extending from the swing sorting device;
A bearing holder that is extrapolated relative to the eccentric shaft portion via a bearing, and that can be connected to and disconnected from the connecting member;
The combine provided with the mounting support part in which the said bearing holder can mount and support the said connection member. The bearing holder includes, as the mounting support portion, a holder side flange portion that protrudes radially outward from a cylindrical holding portion that surrounds the outer periphery of the bearing,
The connecting member includes a connecting member side flange portion corresponding to the holder side flange portion,
The combine according to claim 1, wherein the holder side flange portion and the connecting member side flange portion are bolt-connected.   The combine according to claim 1 or 2, wherein a fitting engagement portion for alignment is formed between the bearing holder and the connecting member.   The combine according to any one of claims 1 to 3, wherein a plurality of the mounting support portions are provided at different positions in the circumferential direction of the bearing holder.   The combine according to any one of claims 1 to 4, wherein, in the bearing holder, a cylindrical holding portion that surrounds an outer periphery of the bearing is formed as an integrally molded product. A shredding device for shredding the discharged matter after the threshing process is provided at the rear of the threshing device,
The power of the engine is transmitted from the drive shaft to which the power of the engine is transmitted to the rotation shaft of the shredding device via the relay transmission shaft,
The combine according to any one of claims 1 to 5, wherein the belt transmission mechanism that links the relay transmission shaft and the rotary shaft is configured by a plurality of parallel transmission belts.   The transmission pulley on the side of the relay transmission shaft to which power from the drive shaft is transmitted and the drive pulley on the side of the relay transmission shaft that transmits power to the rotary shaft are formed as a single transmission rotating body. The combine according to claim 6 which is configured.   The combine according to claim 6 or 7, wherein the drive shaft is a rotary shaft of a red pepper provided in the threshing apparatus.

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