JP2016049092A - combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To favorably perform rotation operation while enabling a rotation operation force applied position to be determined at a high place.SOLUTION: A combine includes: a grain tank 5 storing grains obtained in a threshing device 4; and a grain discharge device 6 discharging the grains stored in the grain tank 5 to outside. The grain discharge device 6 includes: a vertical conveyance conveyor 21 conveying the grains sent out from a lower part of the grain tank 5 toward upward; a lateral conveyance conveyor 23 conveying the grains in a horizontal direction from a conveyance terminal end of the vertical conveyance conveyor 21, the grain discharge device operated to rotate around a vertical axial core Y; and first and second support posts 39, 40 erected from a machine body frame 1. The vertical conveyance conveyor 21 is supported by the first and second support posts 39, 40 so as to rotate around the vertical axial core Y.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a combine, and more specifically, a threshing apparatus for threshing a harvested cereal, a grain tank for storing the grain obtained by the threshing apparatus, and a grain stored in the grain tank. The present invention relates to a combine equipped with a grain discharging device for discharging to the outside.

  The combine grain carry-out device conveys the grain in the horizontal direction from the vertical conveyance conveyor that conveys the grain sent outward from the lower part of the grain tank upward, and from the conveyance end of the vertical conveyance conveyor. And a horizontal conveying conveyor that supports the vertical conveying conveyor so as to be rotatable around the vertical axis, and is configured to be swiveled so that the grain discharge position can be changed.

  In the conventional vertical conveyor, the lower end portion is rotatably supported by the machine frame, and the vertical operation frame such as an electric motor is supported by the vertical frame standing from the machine frame. The middle part of the up-down direction of the vertical conveyance conveyor was supported by the frame (for example, refer patent document 1).

JP 2014-125106 A

  When the above-described grain discharging device is swiveled, it is necessary to rotate the vertical conveyance conveyor and the horizontal conveyance conveyor integrally. In such a turning operation, a large driving force is required, and a driving reaction force with respect to the turning operation becomes large. Therefore, in the above conventional configuration, the position where the driving reaction force is applied to the turning operation is set to a low position so that the driving reaction force is received and supported by one vertical frame.

  If the position where the driving reaction force is applied to the turning operation is low as in the above-described conventional configuration, the turning operation mechanism may be damaged due to contact with the bag or other external object when the combine is traveling. There is. Therefore, in order to reduce the possibility of such damage, it is conceivable to set the position where the driving reaction force is applied to the turning operation to a high position, but the driving reaction force is applied at a high position in one vertical frame. Then, the vertical frame may be deformed by the driving reaction force, and the turning operation may not be performed well.

  Accordingly, it has been desired that the turning operation can be performed satisfactorily while the position where the turning operation force is applied can be set to a high position.

The characteristic configuration of the combine according to the present invention includes a threshing device that threshs the harvested cereal, a grain tank that stores the grain obtained by the threshing device, and a grain that is stored in the grain tank. A grain discharging device for discharging to the outside,
The grain discharging device conveys the grain in the horizontal direction from the vertical conveying conveyor that conveys the grain sent outward from the lower part of the grain tank upward, and the conveying terminal end of the vertical conveying conveyor. A horizontal conveyor, and is provided so that it can be swung around a vertical axis.
The first support column and the second support column are provided in a state of being erected from the body frame,
The vertical conveyor is supported by the first support column and the second support column so as to be rotatable around the vertical axis.

  According to the present invention, the vertical conveyance conveyor and the horizontal conveyance conveyor can be integrally rotated and rotated by driving and rotating the vertical conveyance conveyor around the vertical axis. And even if it is a case where the position where turning operation force acts is installed in a high position, a vertical conveyance conveyor is supported by two columns, the first column and the second column, which are erected from the body frame and have high strength. Thus, the vertical conveyance conveyor can be held in a stable state. As a result, the turning operation force works well on the vertical conveyor and the turning operation can be performed well.

  Therefore, it has become possible to provide a combine that can perform a turning operation satisfactorily while being able to set the position where the turning operation force is applied to a high position.

  In the present invention, the first support column is erected from the machine frame at a lateral side position of the vertical transfer conveyor, and the second support column is erected from the machine frame at a rear position of the vertical transfer conveyor. It is preferable that

  According to this configuration, the vertical conveyance conveyor is supported by the first support column located at the lateral side location and the second support column located at the rear location, so that the first support column in the lateral direction of the vertical conveyance conveyor. The posture variation in the longitudinal direction of the vertical conveyor can be prevented by the second support column. Thus, by effectively preventing posture fluctuations in two different directions of the vertical conveyor by using the two columns, it is possible to accurately hold the vertical conveyor in a stable state.

In the present invention, the grain tank is rotatable about the vertical axis between the action posture of retreating toward the inside of the machine body and storing the grain, and the maintenance attitude protruding outward from the machine body. Supported by
It is preferable that the first support column is erected from the machine body frame at an inner side of the machine body side with respect to the vertical conveyor.

  According to this configuration, when performing the cutting operation, the kernel obtained by threshing the grain tank in the acting posture can be stored, and when performing the maintenance work inside the fuselage, the kernel By switching to the maintenance posture in which the tank is extended outward from the machine body, the inner space of the machine body can be greatly opened and the work can be easily performed.

  And since the 1st support | pillar is located in the machine body side inner side location with respect to a vertical conveyance conveyor, when switching a grain tank to a maintenance attitude | position, a grain tank is greatly outside without interfering with a 1st support | pillar. Can overhang.

  In this invention, when the connection member which connects the said 1st support | pillar and the said 2nd support | pillar is provided, it is suitable.

  According to this configuration, the overall support strength for supporting the vertical transfer conveyor by connecting the first support column and the second support column with the connecting member so that the two support columns support each other. Can be improved.

  In this invention, when the connection member which connects at least any one of the said 1st support | pillar and the said 2nd support | pillar to the said threshing apparatus is provided, it is suitable.

  According to this structure, since any one of a 1st support | pillar and a 2nd support | pillar, or both of a 1st support | pillar and a 2nd support | pillar are connected with a threshing apparatus via a connection member, a vertical conveyance conveyor is used more. It can be supported in a more stable state.

In the present invention, a work table is provided between the grain tank and the threshing device,
It is preferable that the work table is supported by the connecting member.

  According to this configuration, the worker can efficiently perform auxiliary operations such as cleaning and inspection of the grain tank and the threshing device by boarding the work table. And it can support a work table effectively using the connection member which connects the 1st support | pillar and the 2nd support | pillar, and a threshing apparatus, without using the special support member for supporting a work table.

In the present invention, there is provided a rotation holding unit that rotatably holds the vertical conveyance center around the vertical axis while sliding and guiding the upper and lower intermediate part of the vertical conveyor,
It is preferable that the rotation holding unit is connected to the first support column and the second support column.

  According to this structure, the upper-lower intermediate part of a vertical conveyance conveyor is rotatably hold | maintained by the rotation holding part. Since the rotation holding unit is connected to the first support column and the second support column and is firmly supported, the vertical transfer conveyor is supported rotatably around the vertical axis in a stable state with little posture variation. .

In the present invention, the aircraft frame is
A first horizontal frame body positioned at the rear end and extending in the left-right direction; a second horizontal frame body positioned in front of the first horizontal frame body and extending in the left-right direction; the first horizontal frame body and the first A first support frame body extending over two horizontal frame bodies,
The first support frame body supports either the first support column or the second support column,
It is preferable that the lower part of the vertical conveyor is supported by the second horizontal frame body.

  According to this configuration, either the first support column or the second support column extends over the first horizontal frame body and the second horizontal frame body, which are main strength members in the body frame, and is stably supported. It is supported by the first support frame body. Moreover, the lower part of a vertical conveyance conveyor is supported by the 2nd horizontal frame body. Accordingly, either the first support column or the second support column or the vertical transfer conveyor is stably supported by the machine frame.

In the present invention, the aircraft frame is
A third horizontal frame body positioned in front of the second horizontal frame body and extending in the left-right direction; and a second support frame body extending across the second horizontal frame body and the third horizontal frame body;
It is preferable that the other one of the first support column and the second support column is supported by the second support frame body.

  According to this configuration, in addition to the fact that either the first support column or the second support column is supported by the first support frame body and the vertical conveyor is supported by the second horizontal frame body, the first support column Alternatively, either one of the second support columns is supported by a second support frame body that extends over the second horizontal frame body and the third horizontal frame body and is stably supported.

  Therefore, each of the 1st support | pillar, the 2nd support | pillar, and a vertical conveyance conveyor is stably supported by a body frame.

In the present invention, the aircraft frame is
A pair of left and right main frame bodies extending in the front-rear direction located at the left and right ends,
The second horizontal frame body is connected across rear ends of the pair of left and right main frame bodies;
The first horizontal frame body is coupled to the second horizontal frame body in a state of being located closer to the body side than the pair of left and right main frame bodies,
It is preferable that the fuel tank is supported by the second horizontal frame body, and the first horizontal frame body is disposed in a state of being located behind the rear end portion of the fuel tank.

  According to this configuration, the fuel tank is supported by the second horizontal frame body that is coupled and firmly supported across the rear ends of the pair of left and right main frame bodies. Further, since the first horizontal frame body is located behind the rear end portion of the fuel tank, the first horizontal frame body can serve as a protective member on the rear side of the fuel tank, and the fuel tank can be used as an external object. The disadvantage of collision and damage can be avoided.

It is a whole side view of a combine. It is a whole top view of a combine. It is a side view of a grain discharging apparatus. It is a rear view of a grain discharging apparatus. It is the VV sectional view taken on the line of FIG. It is the VI-VI sectional view taken on the line of FIG. It is the VII-VII sectional view taken on the line of FIG. It is the VIII-VIII sectional view taken on the line of FIG. It is a top view of the rear part of a body frame.

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

〔overall structure〕
1 and 2 show ordinary combine harvesters for harvesting rice and wheat. This combine is provided with a traveling machine body equipped with a pair of left and right crawler type traveling devices 2 at the lower part of the machine body frame 1, and the planted culm to be harvested is harvested and transported backward in the front part of the traveling machine body. A cutting and conveying unit 3 serving as a cutting unit is connected to be swingable up and down around a horizontal axis. And the threshing apparatus 4 and the threshing apparatus 4 which perform a handling process with respect to the threshing cereal from the harvesting conveyance part 3 on the body frame 1, and perform a selection process with respect to the threshing processed material obtained by the handling process. Tank 5 for storing the grains from the grain, grain discharging device 6 for discharging the grains stored in the grain tank 5 to the outside of the machine, the driving unit 7 on which the operator gets on and operates Is provided.

The operation part 7 is located on the right side of the front part of the machine body, and the grain tank 5 is located behind the operation part 7. The threshing device 4 and the grain tank 5 are arranged in the left-right direction with the threshing device 4 located on the left side and the grain tank 5 located on the right side. A driving engine 8 is provided below the operation unit 7, and the power of the engine 8 is transmitted to each unit.
In this embodiment, when the left direction and the right direction are defined, the left and right are defined with reference to the aircraft traveling direction view.

  The cutting and conveying unit 3 divides the planted cereals into planted cereals that are to be harvested and planted cereals that are not to be harvested, and the planted cereals that are to be harvested. Rotating reel 10 scraped toward the rear, clipper-shaped cutting device 11 for cutting the planted side of the planted culm to be harvested, and collecting the chopped cereal after cutting at a predetermined position on the center side in the left-right direction And a feeder 13 that conveys the harvested cereal meal toward the threshing device 4 and the like. The cutting and conveying section 3 is supported by a hydraulic cylinder (not shown) so as to be swingable up and down around the horizontal axis.

  Although not described in detail, the threshing device 4 is reaped from the feeder 13 by a handling cylinder that rotates around the front and rear axis cores on the upper side of the inner space surrounded by the left and right side walls and the upper top plate. After handling and processing the cereals, the processed product is sorted into grains, second crops, waste straw scraps and the like. After the grain is conveyed to one side by a first recovery screw (not shown), the grain is conveyed upward by the grain lifting device 15 and stored in the grain tank 5. The second product is conveyed to one side by a second recovery screw (not shown) and then reduced to the inside of the threshing device 4 by the second product reducing device 16, and waste straw waste and the like are discharged outward from the rear side of the machine body. After the harvesting operation, the grain stored in the grain tank 5 is discharged out of the machine by the grain discharging device 6.

  As shown in FIGS. 1 and 2, a work table 17 is provided between the threshing device 4 and the grain tank 5. The work table 17 extends from the position located slightly rearward from the front end of the threshing device 4 to the rear end of the threshing device 4 along the threshing device 4 in the longitudinal direction of the machine body. The work table 17 is provided on the side opposite to the side where the swing fulcrum of the top plate 4B in the threshing device 4 is located, that is, on the right side of the threshing device 4, and along the side wall 4A of the threshing device 4 Extending in the direction.

  As shown in FIG. 2, the workbench 17 includes a front workbench 17 </ b> A located on the front side of the grain lifting device 15, and a rear workbench 17 </ b> B located on the rear side of the grain lifter 15. It is provided in a state divided into front and rear. In addition, an exhaust pipe 18 that is long in the longitudinal direction of the machine body is provided on the lower side of the work table 17 in order to exhaust the exhaust gas of the engine 8 toward the upper rear side of the machine body.

[Grain discharger]
As shown in FIGS. 1 and 3, the bottom of the grain tank 5 is provided with a bottom screw 19 that feeds the stored grain outward to the rear side. There is provided a grain discharging device 6 that conveys the grain sent out from the lower part of the grain tank 5 by the bottom screw 19 and discharges it to a discharge location (not shown) outside the machine body.

  The grain discharging device 6 has a connection case 20 that conveys the grain that has been fed outward from the lower side of the grain tank 5 in an oblique direction in order to change the grain to the upward conveying direction, and the grain is directed upward. A vertical screw conveyor 21 serving as a vertical conveying conveyor, a horizontal screw conveyor 23 serving as a horizontal conveying conveyor for conveying grains horizontally from a conveying terminal end of the vertical screw conveyor 21, a vertical screw conveyor 21 and a horizontal screw. A connecting portion 22 for connecting the conveyor 23 is provided.

  The vertical screw conveyor 21 includes a vertical conveying screw 25 inside a cylindrical outer cylinder case 24, and can rotate the vertical conveying screw 25 to convey the grains upward. Similarly, the horizontal screw conveyor 23 is also provided with a horizontal conveying screw 27 inside a cylindrical outer cylinder case 26, which conveys the grains from the outlet 30 formed in the tip by conveying the grains in the lateral direction. It can be discharged to the outside.

  As shown in FIG. 3, the terminal end of the bottom screw 19 and the start end of the vertical conveying screw 25 of the vertical screw conveyor 21 are interlocked and connected via a bevel gear mechanism 31. The end portion of the vertical conveying screw 25 and the rotating shaft of the connecting portion 22 are interlocked and connected via a bevel gear mechanism 32, and the connecting portion 22 and the starting end portion of the horizontal conveying screw 29 are interlocked and connected via a bevel gear mechanism 33. ing. The power from the engine 8 is transmitted to the front end portion of the bottom screw 19 via a belt tension type discharge clutch 34 so as to be intermittent.

  The bevel gear mechanism 31 that interlocks and connects the bottom screw 19 and the vertical screw conveyor 21 is housed in a gear housing portion 35 that is formed in the connection case 20 so as to be isolated from the grain passage region through which the grain passes. Yes.

  As will be described later, the whole grain discharging device 6 is configured to be swiveled around the vertical axis Y at the center of the vertical screw conveyor 21. Further, the horizontal screw conveyor 23 is configured to be swingable up and down around the horizontal axis X by driving the lifting cylinder C.

  That is, as shown in FIG. 3, the lower end portion of the outer cylinder case 24 of the vertical screw conveyor 21 is connected to the upper end portion of the connection case 20, and is supported so as to be relatively rotatable at the connection location. The connection case 20 is connected to the rear wall portion 5 </ b> A of the grain tank 5. The load of the whole grain discharging device 6 is supported by a support shaft portion 36 that protrudes downward from the bottom surface portion of the connection case 20 by a cylindrical boss portion 37 provided in the body frame 1. Is done.

  A rotation holding portion 38 is provided that holds the upper and lower intermediate portions of the vertical screw conveyor 21 so as to be rotatable around the vertical axis Y while being slidably guided. The rotation holding portion 38 is erected from the body frame 1. The first column 39 and the second column 40 are connected.

  As shown in FIGS. 4, 5, and 7, the first support column 39 is formed in a rectangular tube shape, and the rotation holding unit 38 is located at an inner side of the machine body side with respect to the vertical screw conveyor 21. It is erected from the fuselage frame 1 so as to extend upward to a location. In the first support column 39, a lateral connection plate 41 connected to the lower end portion is bolted to the body frame 1.

  As shown in FIGS. 4, 5, and 7, the second support column 40 is formed in a rectangular tube shape, and is located above the vertical screw conveyor 21 at a position behind the machine body to a position where the rotation holding portion 38 is located. It is erected from the fuselage frame 1 so as to extend in the direction. Similarly to the first support column 39, the second support column 40 is fixed by bolting a lateral connection plate 42 connected to the lower end portion to the body frame 1.

  Further, the upper and lower intermediate part of the first support column 39 and the upper and lower intermediate part of the second support column 40 are connected by a connecting tool 43 as a connecting member. One end of the connector 43 is bolted to a bracket 44 fixed to the upper and lower intermediate part of the first support column 39, and the other end is connected to a bracket 45 fixed to the upper and lower intermediate part of the second support column 40. ing. Thus, the support strength is improved by connecting the first support column 39 and the second support column 40.

The rotation holding unit 38 will be described.
As shown in FIGS. 3, 4, and 7, the rotation holding portion 38 is formed in an arc shape in a plan view in which the front side surrounds the outer periphery on the front side of the vertical screw conveyor 21, and the left and right sides on the rear side are circular A front side sliding support 46 extending linearly from the arcuate part to the rear side in a plan view, and connected to the front side sliding support 46 and in plan view substantially surrounding the rear side outer periphery of the vertical screw conveyor 21 A rear-side sliding support body 47 having a shape, a rear-side connection body 48 extending in the left-right direction and connected to both left and right sides of the rear-side sliding support body 47, and a front-side sliding support body 46. A motor support base 49 connected to the outer peripheral portion of the front side sliding support body 46 and a side-connecting body 50 in the front-rear direction channel shape connected to the outer peripheral portion of the front side sliding support body 46.

  In other words, the vertical screw conveyor 21 is supported so as to be relatively rotatable in a state of being sandwiched between the front side sliding support body 46 and the rear side sliding support body 47. The rear connection body 48 is integrally connected, and a plurality of bolts are connected to the left and right side portions of the front side sliding support body 46 along the lateral direction.

  In addition, the front side sliding support 46 is provided with a front and rear welding bolt 51, and the welding bolt 51 is inserted through a lateral connection plate 52 fixed to the rear connection body 48, so that the welding bolt 51 and the nut 53 are inserted. Thus, the front side sliding support body 46 and the rear connection body 48 are connected along the front-rear direction.

  As shown in FIG. 4, a front-rear channel-shaped bracket 54 is connected to the upper end portion of the first support column 39, and the bracket 54 and the side connector 50 are bolt-connected in a state where the back surfaces are in contact with each other. ing. Further, a bracket 55 having a substantially channel shape in a side view is connected to the upper end portion of the second support column 40, and the bracket 55 and the rear connection body 48 are bolt-connected in a state where the back surfaces are in contact with each other.

  As shown in FIGS. 3 and 7, the motor support base 49 supports a turning drive electric motor (hereinafter referred to as a turning motor) 56 for turning the grain discharging device 6. In FIG. 4, the turning motor is omitted. A pinion gear 58 attached to the output shaft 57 of the turning motor 56 meshes with a large-diameter gear 59 fixed to the outer cylinder case 24 of the vertical screw conveyor 21, and the vertical screw conveyor 21 is moved up and down by the driving force of the turning motor 56. The grain discharging device 6 can be turned by turning around Y. The periphery of the gear meshing drive unit is covered with a cover (not shown).

  As shown in FIG. 3, since the turning motor 56 is provided at a high position, there is little possibility that the turning motor 56 contacts an external object and is damaged. And since the rotation holding | maintenance part 38 which supports the vertical screw conveyor 21 is supported by the 1st support | pillar 39 and the 2nd support | pillar 40, it can suppress the attitude | position change of the vertical screw conveyor 21, and can perform turning operation | work favorably. Become. In addition, since the second support column 40 is located on the rear side of the vertical screw conveyor 21, it is less likely that an external object will come into contact with the vertical screw conveyor 21 and damage the outer cylinder case 24 when the aircraft is moving backward. Become.

As shown in FIGS. 3 and 4, the vertical screw conveyor 21 is supported by a sliding support portion 61 connected to the grain tank 5 at a location above the rotation holding portion 38.
As shown in FIG. 6, the sliding support 61 includes an arcuate sliding support 62 having a configuration similar to that of the front sliding support 46 and a rear sliding support in the rotation holding unit 38. And a connecting support 64 provided with a sliding support portion 63 having a substantially L-shape in plan view similar to 47.

  The connection support 64 includes a connection part 65 that extends linearly in a plan view from the left and right sides of the sliding support part 63 in a front-rear direction, and is bent at an end in an L shape in a plan view. A bolt is connected to the rear wall portion 5 </ b> A of the grain tank 5. The left and right ends of the sliding support 62 are bolted to the left and right sides of the connection support 64, and the left and right sides of the connection support 64 are connected to each other by a reinforcing plate 66.

  The vertical screw conveyor 21 is relatively rotated at the joint portion with the connection case 20, and the upper and lower intermediate portions are slidably guided by the rotation holding portion 38 and the sliding support portion 61, respectively, so that the vertical screw conveyor 21 is in a stable posture. It can be rotated around the axis Y.

  As shown in FIG. 4, a rectangular tube-shaped laterally connecting body 67 is provided as a laterally connecting member that connects the first support column 39 and the threshing device 4. As shown in FIG. 8, the laterally connected body 67 is connected to a mounting plate 68 having a front-rear facing plate surface at the right end, and is attached to the mounting plate 68 and the first support column 39 in a channel configuration in a side view. The plate 69 is bolted. A mounting plate 70 having a left and right plate surface is connected to the left end portion of the lateral connection body 67, and the mounting plate 70 is connected to the side wall 4 </ b> A of the threshing device 4 by bolts.

  As shown in FIG. 4, in a portion corresponding to the rear side of the right side portion of the work table 17, a rectangular cylindrical vertical support 71 is extended upward from the left and right middle portions of the horizontal connection body 67. ing. The upper end portion of the vertical support 71 is bolted to the lower surface side of the right side portion of the work table 17. That is, the rear end portion of the work table 17 is supported by the laterally connected body 67. Although not described in detail, the front side portion of the work table 17 is supported by a front column (not shown) standing from the machine frame 1.

(Grain tank)
The bottom surface of the grain tank 5 is formed in an inclined posture in a substantially V shape when viewed in the front-rear direction so that the part where the bottom screw 19 is located is located at the lowermost part. And the bottom screw 19 is provided in the position biased laterally outward (right side) from the center position in the left-right width direction in the rear view of the body.

  As shown in FIG. 4, a large open space is formed below the left side of the grain tank 5, and a fuel tank 73 is provided using this space. The fuel tank 73 is formed in an inclined shape so that its upper surface is close to the inclined bottom surface of the grain tank 5 when viewed in the front-rear direction, extends to a high position in the space, and effectively uses the space. In order to increase the amount of storage.

  The grain tank 5 revolves around the vertical axis Y along the center of the vertical screw conveyor 21 over an action posture in which the grain tank is retreated and stored in the body and a maintenance posture that projects outward from the body. It is supported by the fuselage frame 1.

  That is, the grain tank 5 can be rotated around the vertical axis Y while being supported by the vertical screw conveyor 21. However, when switching the grain tank 5 to the maintenance posture, it is necessary to release the interlocking state of the discharge clutch 34 and remove the transmission belt in advance. When changing the posture of the grain tank 5 from the action posture, as shown in FIG. 2, the grain tank 5 is rotated so that the front side of the grain tank 5 faces outward from the machine body. At that time, the support shaft portion 36 on the bottom surface portion of the connection case 20 rotates relative to the boss portion 37, and rotates relative to the connection case 20 and the outer cylinder case 24. Further, the sliding support portion 61 rotates relative to the vertical screw conveyor 21.

  As described above, since the vertical screw conveyor 21 is stably supported by the first support column 39 and the second support column 40, the posture change due to the swinging motion in the front-rear direction and the left-right direction is small. And the grain tank 5 is rotatably supported using the vertical screw conveyor 21 which such an attitude | position is stabilized.

[Airframe frame]
Next, a support structure on the rear side of the machine body frame 1 will be described.
As shown in FIGS. 3, 4, and 9, the aircraft frame 1 has a pair of left and right main frame bodies 74 that extend in the front-rear direction and are located at the rear end portion. A first horizontal frame body 75 extending in the left-right direction, a second horizontal frame body 76 positioned in front of the first horizontal frame body 75 and extending in the left-right direction, and positioned in front of the second horizontal frame body 76 in the left-right direction A third horizontal frame body 77 extending in the direction, a first support frame body 78 extending across the first horizontal frame body 75 and the second horizontal frame body 76, a second horizontal frame body 76, and a third horizontal frame body 77. And a second support frame body 79 extending over the distance. The pair of left and right main frame bodies 74, the first horizontal frame body 75, the second horizontal frame body 76, and the third horizontal frame body 77 are each formed in a rectangular tube shape.

  In addition to the frame bodies 74 to 79, the body frame 1 extends along the longitudinal direction of the body, and the left side ends of the first horizontal frame body 75 and the third horizontal frame body 77, respectively, A first front-rear frame body 80 to which the left and right intermediate portions of the two horizontal frame bodies 76 are connected; a left-right intermediate portion of each of the first horizontal frame body 75 and the third horizontal frame body 77 extending along the front-rear direction of the machine body; And a second front-rear facing frame body 81 to which the right side portion of the left and right intermediate portion of the second horizontal frame body 76 is connected. The first front-rear frame body 80 and the second front-rear frame body 81 are each formed in a rectangular tube shape.

  Accordingly, the first horizontal frame body 75 is connected to both the left and right end portions thereof across the first front-rear frame body 80 and the first support frame body 78, and the intermediate portion is connected to the second front-rear frame body 81. Have been supported by them. The second horizontal frame body 76 is connected across the rear ends of the pair of left and right main frame bodies 74, and an intermediate portion is connected to the second front-rear frame body 81 and supported by them. The third horizontal frame body 77 is connected across the right main frame body 74 and the first front-rear frame body 80, and the intermediate portion is connected to the second front-rear frame body 81 and supported by them. ing.

  The first support frame body 78 has a horizontally-oriented plate-like body 78A fixed in a state of being placed across the first horizontal frame body 75 and the second horizontal frame body 76, and a lower surface of the plate-like body 78A. The first horizontal frame body 75, the second horizontal frame body 76, and a rectangular tube-shaped front / rear extending body 78 </ b> B connected to each of the plate-shaped bodies 78 </ b> A are provided.

  The second support frame body 79 has a horizontal posture plate-like body 79A fixed to the upper surface of the second horizontal frame body 76 and the third horizontal frame body 77, and the horizontal posture plate-like body 79A. It extends along the lower surface and is connected to the lower surface of the horizontal plate-like body 79A in a T-shape, and both ends are connected to the second horizontal frame body 76 and the third horizontal frame body 77 in the vertical direction. And a plate-like body 79B. That is, the frame body has a structure in which a pair of plate-like bodies 79A and 79B are connected in a T shape.

  The horizontally oriented plate-like body 79A not only extends in the front-rear direction from the second horizontal frame body 76 to the third horizontal frame body 77, but also extends in the horizontal direction along the upper side of the third horizontal frame body 77. A portion 79A1 is provided. The laterally extending portion 79A1 can be slid while supporting the support when the posture is changed in a state where the support 82 provided on the lower portion of the rear wall portion 5A of the grain tank 5 is placed and supported. The posture changing operation can be easily performed.

  The second support column 40 supports the second support column 40, and the second support frame body 79 supports the first support column 39. That is, the connecting plate 42 provided at the lower end of the second support column 40 is bolt-connected to the upper surface of the plate-like body 78A of the first support frame 78. Further, a connecting plate 41 provided at the lower end portion of the first support column 39 is bolt-connected to the upper surface of the horizontal plate-like body 79A of the second support frame body 79.

  The second horizontal frame body 76 is connected over the rear ends of the pair of left and right main frame bodies 74 and is stably supported in a both-end supported state. Thus, the lower part of the vertical screw conveyor 21 is supported by the second horizontal frame body 76 that is stably supported on both sides. That is, at the place where the first support frame body 78 is fixed to the second horizontal frame body 76, a cylindrical boss portion 37 that supports the vertical screw conveyor 21 is connected to the upper surface side thereof.

  The fuel tank 73 is supported by the second horizontal frame body 76 and the third horizontal frame body 77. The second horizontal frame body 76 is stably supported by a pair of left and right main frame bodies 74 in a both-end supported state, and the third horizontal frame body 77 is composed of a right main frame body 74 and a first front-rear facing frame body 80. Therefore, the fuel tank 73 can be favorably supported.

  Further, as shown in FIG. 8, the first horizontal frame body 75 is arranged in a state of being located behind the rear end portion of the fuel tank 73. By configuring in this way, the first horizontal frame body 75 functions as a protective member when the aircraft is moving backward, etc., and it is avoided that an external object directly collides with the fuel tank 73 and the fuel tank 73 is damaged. It will be easy.

[Another embodiment]
(1) In the above embodiment, the laterally connected body 67 as a connecting member for connecting the first support 39 to the threshing device 4 is provided. However, instead of or in addition to this structure, the second supporter 67 is provided. It is good also as a structure provided with the connection member which connects 40 to the threshing apparatus 4. FIG.

(2) In the above embodiment, the second support column 40 is supported by the first support frame body 78 and the first support column 39 is supported by the second support frame body 79 in the machine body frame 1. Instead of this configuration, the first support frame body 78 may support the first support column 39, and the second support frame body 79 may support the second support column 40.

(3) The arrangement configuration of the first support column 39 and the second support column 40 is not limited to the above embodiment and can be changed as appropriate. For example, in the above-described embodiment, the first support column 39 is provided at the left portion of the vertical screw conveyor 21, but the first support column 39 may be provided at the right portion of the vertical screw conveyor 21.

(4) In the above-described embodiment, the swing motor 56 is supported by the rotation holding portion 38. However, instead of such a configuration, the rotation motor 56 is raised from the body frame separately from the rotation holding portion 38. It is good also as a structure supported by the provided support member or the grain tank 5. FIG.

(5) In the above embodiment, the work table 17 is provided between the grain tank 5 and the threshing device 4, but such a work table 17 may be omitted.

(6) In the above embodiment, the first horizontal frame body 75 in the machine body frame 1 is provided in a state of being positioned behind the rear end portion of the fuel tank 73. Instead, a protective member that surrounds the rear side of the fuel tank 73 may be provided separately. Further, instead of the configuration in which the fuel tank 73 is supported by the second horizontal frame body 76 and the third horizontal frame body 77, the fuel tank 73 may be supported only by the second horizontal frame body 76.

(7) In the above embodiment, the combine is applied to a normal combine as the 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 1 Machine frame 4 Threshing apparatus 5 Grain tank 6 Grain discharge apparatus 17 Work table 21 Vertical conveyance conveyor 23 Horizontal conveyance conveyor 38 Rotation holding part 39 1st support | pillar 40 2nd support | pillar 67 Connecting member 73 Fuel tank 74 Main frame body 75 First horizontal frame body 76 Second horizontal frame body 77 Third horizontal frame body 78 First support frame body 79 Second support frame body

Claims (10)

A threshing device for threshing the harvested culm, a grain tank for storing the grain obtained by the threshing device, and a grain discharging device for discharging the grain stored in the grain tank to the outside Provided,
The grain discharging device conveys the grain in the horizontal direction from the vertical conveying conveyor that conveys the grain sent outward from the lower part of the grain tank upward, and the conveying terminal end of the vertical conveying conveyor. A horizontal conveyor, and is provided so that it can be swung around a vertical axis.
The first support column and the second support column are provided in a state of being erected from the body frame,
A combine in which the vertical conveyor is supported by the first support column and the second support column so as to be rotatable around the vertical axis.   The said 1st support | pillar is standingly arranged from the said body frame in the lateral side location of the said vertical conveyance conveyor, The said 2nd support | pillar is standingly arranged from the said body frame in the back side location of the said vertical conveyance conveyor. Combine according to 1. The grain tank is supported by the machine frame so as to be rotatable about the vertical axis around the action posture of retreating toward the inside of the machine body and storing the grain, and the maintenance attitude that projects outward from the machine body.
3. The combine according to claim 1, wherein the first support column is erected from the body frame at an inward side of the body side with respect to the vertical conveyor.   The combine of any one of Claims 1-3 provided with the connection member which connects the said 1st support | pillar and the said 2nd support | pillar.   The combine of any one of Claims 1-4 with which the connection member which connects at least any one of the said 1st support | pillar and the said 2nd support | pillar to the said threshing apparatus is provided. A workbench is provided between the grain tank and the threshing device,
The combine according to claim 5, wherein the work table is supported by the connecting member. A rotation holding unit is provided that holds the upper and lower intermediate portions of the vertical conveyance conveyor so as to be rotatable around the upper and lower axis cores while sliding.
The combine according to any one of claims 1 to 6, wherein the rotation holding unit is connected to the first support column and the second support column. The aircraft frame is
A first horizontal frame body positioned at the rear end and extending in the left-right direction; a second horizontal frame body positioned in front of the first horizontal frame body and extending in the left-right direction; the first horizontal frame body and the first A first support frame body extending over two horizontal frame bodies,
The first support frame body supports either the first support column or the second support column,
The combine of any one of Claims 1-7 which supports the lower part of the said vertical conveyance conveyor with the said 2nd horizontal frame body. The aircraft frame is
A third horizontal frame body positioned in front of the second horizontal frame body and extending in the left-right direction; and a second support frame body extending across the second horizontal frame body and the third horizontal frame body;
The combine according to claim 8, wherein the second support frame body supports the other of the first support column and the second support column. The aircraft frame is
A pair of left and right main frame bodies extending in the front-rear direction located at the left and right ends,
The second horizontal frame body is connected across rear ends of the pair of left and right main frame bodies;
The first horizontal frame body is coupled to the second horizontal frame body in a state of being located closer to the body side than the pair of left and right main frame bodies,
The combine according to claim 8 or 9, wherein a fuel tank is supported by the second horizontal frame body, and the first horizontal frame body is disposed in a state of being located behind a rear end portion of the fuel tank.

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