JP2010051287A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grain unloading cylinder freely movable in vertical and horizontal directions which is configured to be operated downward from a horizontal position as well as to have a simple operational structure. <P>SOLUTION: The swinging range in the vertical direction of the grain unloading cylinder 70 is brought into variable attitudes from an attitude in which the axis of the cylinder of the grain unloading cylinder 70 is directed downward from a horizontal level to an attitude in which the axis is directed upward, and the turning range in the horizontal direction of the grain unloading cylinder 70 is set in a turning angle range including the region on a self travelling machine body, and a guide body 45 for lifting and guiding the grain unloading cylinder 70 in the attitude facing downward together with the movement of the grain unloading cylinder 70 above the self travelling machine body 1 upward, is equipped in the turning angle region corresponding to the region above the self travelling machine body 1 out of the turning ranges in the horizontal direction around the vertical axis of the grain unloading cylinder 70. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is provided with a grain tank at one lateral side on the rear side of the self-propelled aircraft, and feeds the grain taken out from the lower end side of the grain tank upward, and moves in the vertical and horizontal directions. The present invention relates to a combine that is configured to be discharged from the tip of a free grain carrying tube.

In a combine having a structure in which the grain in the Glen tank is discharged from the tip of the grain carry-out cylinder as described above, the grain carry-out cylinder is generally configured to move up and down and horizontally rotate above the horizontal position. However, this is inconvenient when performing operations such as stuffing grains into a bag on the ground, so a combine with a structure as shown in [1] below has also been proposed. Yes.
[1] In a range in which the grain unloading cylinder is provided in a position where the grain unloading cylinder is located above the self-propelled machine body, provided with a horizontal position detecting means for detecting that the grain unloading cylinder is not located above the self-propelled machine body. The lower limit position of the operating range of the lifting cylinder of the grain carry-out cylinder is changed so that the tip side of the grain carry-out cylinder can be lowered to the vicinity of the ground (see Patent Document 1).

Japanese Patent Laid-Open No. 11-266683 (paragraphs [0016] and [0017], FIGS. 1 and 3)

In the conventional structure described in [1] above, an angle sensor for detecting the rotation angle in the horizontal direction and the swing angle in the vertical direction of the grain carrying-out cylinder is provided, and based on the detected value. This is used to control the operation of the lifting cylinder that moves the grain unloading cylinder up and down, so it can be used when loading grains into the carrier bed or when filling grains in a bag on the ground. This is useful in that the lifting / lowering operation position of the grain unloading cylinder can be changed depending on the situation without being limited to the upper side of the horizontal position.
However, this conventional structure requires an angle sensor for detecting the rotation angle in the horizontal direction and the swing angle in the vertical direction of the grain carrying cylinder described above, and the detected value of the angle sensor Actuator for accurately operating the grain unloading cylinder based on the control unit, and a control device for operating these actuators by switching between a state in which the operation is restricted and a state in which the actuator is not restricted based on the detection value by the angle sensor In addition, a display means for indicating a restricted state or the like is required, and the structure is relatively complicated.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a combine that can operate a grain unloading cylinder whose position is movable in the vertical and horizontal directions further downward than the horizontal position and can simplify its operation structure. It is to provide.

[Solution 1]
The technical means of the present invention taken in order to solve the above-mentioned problem includes a grain tank on the rear side of the self-propelled aircraft body as described in claim 1 and a grain taken out from the lower end side of the grain tank. A vertical feed cylinder is provided, and a vertical feed cylinder is provided on the upper end side of the vertical feed cylinder so as to be rotatable in the horizontal direction around the vertical axis of the vertical feed cylinder and near the upper end of the vertical feed cylinder. A combine provided with a grain carrying cylinder configured to be swingable in the vertical direction around an axis,
The oscillating range in the vertical direction around the horizontal axis of the grain carry-out cylinder can be changed from the attitude in which the cylinder axis of the grain carry-out cylinder is downward from the horizontal to the upward direction, and The rotation range in the horizontal direction around the vertical axis of the grain carrying cylinder is set to a rotation angle range including a region on the self-propelled aircraft,
Furthermore, in the rotation angle range corresponding to the region on the self-propelled machine body in the horizontal rotation range around the vertical axis of the grain carry-out cylinder, the grain carry-out cylinder is a self-propelled machine body. A guide body is provided that guides the grain unloading cylinder in the downward posture as it moves upward.

[Action and effect]
As described above, in the combine of the present invention according to the solution 1, the swinging in the vertical direction of the grain unloading cylinder in which the rotational range in the horizontal direction is set to the rotational angle range including the region on the self-propelled machine body. Since the range is configured so that the posture can be changed from the posture in which the cylinder axis of the grain unloading cylinder is downward from the horizontal to the posture in which it is upward, the posture is such that the grain unloading tube is downward from the horizontal. This makes it easier to carry out the bagging operation at a low position on the ground or the like.
And while the grain unloading cylinder is directed downward in this way, it is easy to work at a low position, while the grain unloading cylinder is self-propelled within a rotation angle range corresponding to the region on the self-propelled aircraft. Since it has a guide body that lifts and guides the grain unloading cylinder in the downward posture as it moves above the machine body, when the grain unloading cylinder reaches the area on the self-propelled machine body, The grain carry-out cylinder is lifted and guided upward by the guide action of the guide body, and collision with the self-propelled machine body can be avoided.
In addition, since the structure for lifting the horizontally rotating grain carry-out cylinder upward is mechanically performed by using the guide body, a complicated position detection mechanism and control device are required. In addition, the simplification of the configuration has been achieved.

[Solution 2]
The second solving means in the combine according to the present invention is such that, as described in claim 2, a boarding operation part is disposed in the front part of the self-propelled aircraft, and the boarding operation part is in the horizontal direction of the grain carrying cylinder. It is included in the rotation range in.

[Action and effect]
As described above, the combine according to the present invention according to the solving means 2 has the following effects in addition to the same effects as the invention according to the solving means 1.
That is, since the boarding operation part arranged in the front part of the self-propelled machine body is included in the rotation range in the horizontal direction of the grain carry-out cylinder, the boarding operation part positioned relatively high on the self-propelled machine body is surely provided. Therefore, it is possible to rotate the grain carry-out cylinder in the horizontal direction.

[Solution 3]
The third solving means in the combine of the present invention is configured such that the swing range in the vertical direction of the grain carry-out cylinder is capable of changing the lower limit side height as described in claim 3. It is.

[Action and effect]
As described above, the combine of the present invention according to the solving means 3 has the following effects in addition to the same effects as the invention according to the solving means 1 or 2.
That is, in the combine of the present invention according to the solving means 3, the lower limit side height of the swing range in the vertical direction of the grain carry-out cylinder is configured to be changeable. Make sure that the cylinder axis of the grain unloading cylinder can be used in a state where it is lower than the horizontal, so that it can be used for bagging on the ground, or the lower limit height is positioned above the horizontal. There is an advantage that various usage methods can be selected according to various working conditions such as a work of discharging the grains on the loading platform.

[Solution 4]
The fourth solving means in the combine according to the present invention is such that, as described in claim 4, the rotation range in the horizontal direction of the grain carry-out cylinder around the vertical axis of the vertical feed cylinder is the presence of the boarding operation section. It is characterized in that it is about 2/3 round including the position on the self-propelled aircraft including the area and the laterally outer area of the self-propelled aircraft on the side where the boarding operation part is located.

[Action and effect]
As described above, the combine of the present invention according to the solving means 4 has the following effects in addition to the same effects as the invention according to the solving means 2 or 3.
That is, in the combine of the present invention according to Solution 4, even if the storage position of the grain carry-out cylinder on the self-propelled machine body is set on the self-propelled machine body beyond the existence region of the boarding operation unit, from the storage position The grain carry-out cylinder can be rotated over the laterally outward region of the self-propelled aircraft on the side where the boarding operation unit is located.
And the rotation range of the grain unloading cylinder includes the position on the self-propelled aircraft including the existence area of the boarding operation unit, and the laterally outer region of the self-propelled aircraft on the side where the boarding operation unit is located. Since the rotation of the grain unloading cylinder from the storage position to the working position can be performed without any trouble, the unrestricted rotation of the grain unloading cylinder is suppressed, and the remaining 1 / Effective in preventing contact with other devices and other objects on the self-propelled aircraft existing in the range of about 3 laps.

[Solution 5]
The fifth solving means in the combine of the present invention, as described in claim 5, is that the guide body is located between the rotation center of the grain carrying-out cylinder and the discharge port in the longitudinal direction of the grain carrying-out cylinder. It is characterized in that it is provided on the self-propelled machine body near the vertical feed cylinder so as to guide the position closer to the rotation center side.

[Action and effect]
As described above, the combine of the present invention according to the solving means 5 has the following effects in addition to the same effects as the invention according to the solving means 1 to 4.
That is, since the guide body is provided near the vertical feed cylinder so as to guide the position closer to the rotation center side in the longitudinal direction of the grain delivery cylinder, the guide body is disposed on the discharge port side in the longitudinal direction of the grain delivery cylinder. There is an advantage that the guide body can be configured to be relatively small as compared with the case where the guide body is provided at a position closer to it.

[Solution 6]
The sixth solving means of the combine according to the present invention is that, as described in claim 6, the guide body is provided on the ceiling portion on the rear side formed lower than the ceiling portion on the front side of the Glen tank. There is a feature.

[Action and effect]
As described above, the combine according to the present invention according to the solving means 6 has the following effects in addition to the same effects as the invention according to the solving means 1 to 5.
That is, the rear-side ceiling portion on which the guide body is provided is closer to the center of rotation than the front-side ceiling portion of the Glen tank, and the grain carry-out cylinder is located above the Glen tank. In such a state, since the grain unloading cylinder is located on the self-propelled aircraft, it is not necessary to turn it below the horizontal. Therefore, even if the guide body is provided on the rear side ceiling portion that is formed low, if the vertical swing fulcrum of the grain carry-out cylinder is kept low, the front side ceiling portion is higher than the rear side ceiling portion. In addition, the higher member on the front side can be passed by the guide body.
Accordingly, there is an advantage that the guide body itself can be configured with a compact structure.

[Solution 7]
According to a seventh solving means of the combine of the present invention, as described in claim 7, the guide body is provided on the upper surface side of the lid that closes the maintenance opening formed in the upper part of the Glen tank. There are features.

[Action and effect]
As described above, the combine according to the present invention according to the solving means 7 has the following effects in addition to the same effects as the invention according to the solving means 1 to 6.
That is, since the guide body is provided on the upper surface side of the lid that closes the maintenance opening formed in the upper part of the Glen tank, the lid can be opened and closed by using this guide body instead of the handle. .
Therefore, there is an advantage that the structure can be further simplified by sharing the guide body and the handle of the lid.

[Solution 8]
According to an eighth solving means of the combine of the present invention, as described in claim 8, the guide body is provided in a region on the self-propelled machine body within a horizontal rotation range of the grain carry-out cylinder. There is a feature in that the guide range is set so as to guide the grain carry-out cylinder above the cleaner.

[Action and effect]
As described above, the combine according to the present invention according to the solving means 8 has the following effects in addition to the same effects as the invention according to the solving means 1 to 7.
That is, the guide height to the upper side by the guide body is set so as to guide the grain carry-out cylinder above the pre-cleaner, so that the pre-cleaner is close to the boarding operation part, the rear side of the driver seat, etc. Even when it exists in the position which is comparatively difficult to visually check, a contact with a grain carrying-out pipe | tube and a pre cleaner can be avoided reliably.

[Solution 9]
According to a ninth solving means of the combine of the present invention, as described in claim 9, the outside air supplied to the driving part cover is arranged on the upper side of the driving part cover that covers the engine. A switch operating tool is provided on the outer end side of the fuselage with respect to the driver seat, and the grain carrying tube is rotated horizontally and vertically on the upper surface side of the intake duct. It is characterized in that is provided.

[Action and effect]
As described above, the combine according to the present invention according to the solving means 9 has the following effects in addition to the same effects as the invention according to the solving means 2 to 8.
That is, since the switch operating tool for horizontally rotating and vertically swinging the grain carry-out cylinder is provided on the upper surface side of the intake duct provided on the outer end side of the machine body from the driver's seat, An intake duct for introducing outside air to be supplied into the cover can be used as means for attaching the switch operating tool. Thereby, there is an advantage that the switch operating tool mounting structure can be simplified.
In addition, the upper surface side of the air intake duct provided at the outer edge side of the aircraft relative to the driver seat is a position where the operator on the ground who is not on the self-propelled aircraft can operate the switch operation tool. There is also an advantage that can be used conveniently when the operator gets down on the ground and adjusts the position of the grain carry-out cylinder.

[Solution 10]
According to a tenth solving means of the combine of the present invention, as described in claim 10, the switch operating tool is a seesaw that performs a horizontal rotation operation of the grain unloading cylinder by two-way selective swing switching. It is characterized in that it is composed of a combination of a switch and a seesaw switch in which the vertical swing operation of the grain unloading cylinder is performed by alternative swing switching at two positions.

[Action and effect]
As described above, the combine according to the present invention according to the solving means 10 has the following effects in addition to the same effects as the invention according to the solving means 9.
That is, as a switch operation tool, the horizontal rotation operation of the grain unloading cylinder and the vertical swing operation of the grain unloading cylinder are performed by a combination of seesaw switches that are switched by two-way selective rocking switching. Therefore, by selecting either the horizontal rotation operation or the vertical swing operation of the grain unloading cylinder, a simple two-position alternative swing switching can be used to Operation can be performed, and the grain carrying-out work can be performed in a state where there is little possibility of erroneous operation.

[Solution 11]
The eleventh solving means of the combine according to the present invention is such that, as described in claim 11, the operation tool of the grain carry-out clutch for carrying out the grain stored in the Glen tank is provided rather than the driver seat. It is characterized in that it is provided at a location near the outside of the aircraft.

[Action and effect]
As described above, the combine of the present invention according to the solving means 11 has the following effects in addition to the same effects as the invention according to the solving means 2 to 10.
In other words, since the operation tool for the grain carry-out clutch is provided at a location closer to the outside of the machine body than the driver's seat, an operator on the ground holding the operation tool for the grain carry-out clutch without riding on the self-propelled machine body. It is easy to operate, and there is an advantage that a grain carry-out clutch that can be operated can be obtained both in the state of being seated on the driver's seat and in the state of being positioned on the ground.

[Solution 12]
The twelfth solving means in the combine of the present invention is the bottom screw provided in the Glen tank, the vertical screw provided in the vertical feed cylinder, and the conveying screw in the grain carrying-out cylinder as described in claim 12. Is characterized in that an interlocking mechanism that interlocks with the outside of the screw cylinder that houses each screw is provided.

[Action and effect]
As described above, the combine of the present invention according to the solving means 12 has the following effects in addition to the same effects as the invention according to the solving means 1 to 11.
That is, by connecting the bottom screw in the Glen tank, the vertical screw in the vertical feed cylinder, and the conveyance screw in the grain unloading cylinder on the outside of the cylinder portion that houses each screw, Since the internal space of the cylinder portion is not narrowed by the interlocking mechanism for interlocking, there is an advantage that it is easy to maintain the flow of the conveyed grains in a smooth state with relatively low transport resistance.

[Solution 13]
The thirteenth solving means of the combine of the present invention is characterized in that the interlocking mechanism for interlocking the bottom screw and the vertical screw is constituted by a belt transmission mechanism as described in claim 13.

[Action and effect]
As described above, the combine of the present invention according to the solving means 13 has the following effects in addition to the same effects as the invention according to the solving means 12.
In other words, in the vertical screw part, which has a relatively large conveying resistance compared to the bottom screw and the conveying screw in the grain unloading cylinder, when a larger conveying resistance such as clogging occurs, Since slip occurs at the belt transmission mechanism provided between the screw and the screw, there is an advantage that damage at each screw can be avoided.

[Solution 14]
The fourteenth solving means of the combine according to the present invention is characterized in that, as described in claim 14, the Glen tank is configured to be rotatable around the vertical axis around the outside of the machine body.

[Action and effect]
As described above, the combine of the present invention according to the solving means 14 has the following effects in addition to the same effects as the invention according to the solving means 1 to 13.
In other words, by rotating the Glen tank around the vertical axis to the outside of the aircraft, each transmission structure on the self-propelled aircraft whose outer side is covered by the Glen tank can be exposed to the outside. There is an advantage that maintenance and inspection of the transmission mechanism and the like can be easily performed.

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

〔overall structure〕
FIG. 1 and FIG. 2 show an ordinary combine as an example of a combine in the present invention.
In this ordinary combine, a body frame 10 is mounted on a pair of left and right crawler traveling devices 11, 11 to form a self-propelled body 1. On the self-propelled body 1, a driver seat 20 and an upper portion of the driver seat 20 are disposed. The boarding operation part 2 equipped with the canopy 21 to cover, the engine 12 located under the said driver's seat 20, the threshing apparatus 13 which throws in the to-be-processed object of threshing, and threshed and selected, and threshed A grain recovery device 3 for recovering the object to be processed is installed and installed.
Then, on the front side of the body of the self-propelled aircraft 1, a feeder 15 of the pre-cutting processing device 14 for harvesting the stalks to be cut is swingable up and down around the horizontal axis (not shown) at the rear end. It is connected, and the combination of each of these devices constitutes a normal combine that threshs the whole culling processed object.

[Boarding Driving Department]
In the boarding operation part 2, the driver's seat 20 is arranged above a driving part cover 22 formed in a box shape so as to cover the upper side of the engine 12, and the driving part cover 22 serves as a seat support. It is comprised so that it may be combined.
On the front side of the driver's seat 20, a control tower 24 erected from the front end portion of the operation section floor 23 on the fuselage frame 10 is provided, and a control box 25 extends from the left side of the control tower 24 to the driving section cover 22 on the rear side. An air intake duct 26 is provided on the right side of the driver's seat 20 on the engine 12 side for taking in outside air from above the lateral outer side of the fuselage through a dust net 26a with respect to the driving part cover 22. Are connected together.

  On the upper surface side of the control tower 24, a steering operation lever 27 for controlling the aircraft traveling direction is provided. On the upper surface side of the control box 25, a speed change lever 28 for controlling the aircraft traveling speed and a cutting pretreatment device. A cutting clutch lever 29 for intermittently driving 14 is provided. Various other instruments are mounted on the operation panel surface formed on the upper surface side of the control board 24 and the control box 25.

As shown in FIGS. 1 and 13, on the upper surface side of the intake duct 26 in the forward downward posture, the grain unloading device 5 of the grain tank 4 and the grain unloading device 5 constituting the grain collecting device 3. On the other hand, a switch operating tool 32 for selecting and operating the grain delivery position is provided.
Further, a grain to be described later for taking out the grain stored in the grain tank 4 of the grain recovery device 3 between the side surface of the intake duct 26 on the side of the body side and the driver's seat 20. A grain unloading clutch lever 31 is provided as an operation tool of the grain unloading clutch 87 that can be switched between a state of driving the grain unloading device 5 and a state of stopping driving.
The operation of the switch operating tool 32 and the grain carry-out clutch lever 31 will be described in detail later.

  An air cleaner 17 for intake air to the engine 12 is provided on the rear side of the driver seat 20, and a long cylindrical intake pipe 17 a is connected to the air cleaner 17. The upper part of the intake pipe 17 a is connected to the air cleaner 17. A pre-cleaner 18 is connected to the main body. The intake pipe 17 a extends upward along the inner surface of the grain tank 4, and an intermediate portion in the vertical direction is fixed to the inner surface of the grain tank 4. As a result, the outside air in the upper part of the machine body with relatively little dust is purified through the precleaner 18 and the air cleaner 17 and supplied as combustion air for the engine 12.

  On the upper side of the driver seat 20 configured as described above, a canopy 21 that covers the upper side of the driver seat 20 is provided via a support column 16 erected along the front side of the Glen tank 4.

[Threshing part]
The threshing device 13 is configured to thresh the harvested cereal supplied to the handling room by an axial flow type barrel (not shown) that rotates around the axis of the traveling machine in the front-rear direction. The threshed material is sorted into threshing grains and swarf using a sorting processing device (not shown) arranged below the handling cylinder of the threshed material, and the threshing grain is separated into the grain tank of the grain recovery device 3 4 is configured to be supplied to 4. Sawdust other than the target threshing processed product (threshing grain) stored in the Glen tank 4 is configured to fall and discharge to the rear of the self-propelled aircraft 1.

[Configuration of grain recovery device]
The said grain collection | recovery apparatus 3 is provided with the grain tank 4 for storing a threshing grain, and the grain carrying-out apparatus 5 for taking out the grain stored in the grain tank 4 outside. Yes.

[Glentank related]
As shown in FIGS. 3 and 4, the Glen tank 4 includes a bottom screw 41 that feeds grains stored in the lower part of the tank body 40 backward.
The tank main body 40 is formed in a lower constricted shape when viewed in the front-rear direction, and the bottom screw 41 is supported horizontally in the front-rear direction inside the lower end of the constricted portion 40a. The lower constricted portion 40a in the Glen tank 4 is given an inclination angle equal to or greater than the flow down repose angle of the grain so that the stored grain is guided to the bottom screw 41 without leaving the stored grain, and the lower end portion of the lower constricted portion 40a is It is larger than the center of the horizontal width of the tank and is biased laterally outward.
As shown in FIGS. 2, 5, and 6, the lower rear end of the Glen tank 4 is connected to a carry-out case 42 that supports the rear end portion of the support shaft 41 a of the bottom screw 41, and the fuselage The lower end boss portion 42a of the carry-out case 42 is rotatably fitted and supported on a support portion 10a projecting outward from the frame 10 from the frame 10, and the glen tank 4 is pivoted vertically with respect to the fuselage frame 10. It is supported so as to be pivotable about the center y.

  The ceiling 43 of the tank body 40 is formed such that the ceiling 43b on the rear side is lower than the ceiling 43a on the front side of the tank body 40 located on the self-propelled aircraft 1. And it is comprised so that the maintenance opening 43c provided in the ceiling part 43b of the rear part formed low may be obstruct | occluded with the cover body 44, and the grain delivery cylinder of the grain delivery apparatus 5 is provided in the cover body 44 A guide body 45 for guiding 70 is provided, and by holding the guide body 45 by hand, the maintenance opening 43c can be easily opened and closed.

The guide body 45 guides the grain unloading cylinder 70 of the grain unloading apparatus 5 by lifting the grain unloading cylinder 70 in a downward posture from the horizontal as the grain unloading cylinder 70 moves above the self-propelled machine body 1. When the grain carry-out cylinder 70 turning around the vertical axis y described later moves on the self-propelled machine body 1, it swings up and down around the horizontal axis x described later. This is for moving the canopy 21 and the precleaner 18 of the boarding operation unit 2 having a relatively high height on the airframe to be placed on the storage support 30 on the airframe.
The guide action by this guide body 45 is the machine body on the side where the boarding operation part 2 is present from the position where the storage support base 30 is present in the rotation range of the grain carrying cylinder 70 around the vertical axis y. It functions between the lateral end portions, and the guide action by the guide body 45 does not occur in other ranges.

[For grain unloader]
Behind the grain tank 4 is equipped with a screw-type grain unloading device 5 that lifts the grain delivered by the bottom screw 41 and then laterally conveys it to the outside. This grain carry-out device 5 is composed of a screw-type vertical conveyance mechanism 6 connected to the lower end of the rear surface of the Glen tank 4 and a screw-type horizontal conveyance mechanism 7 connected to the upper end of the vertical conveyance mechanism 6. The whole grain unloading device 5 is concentric with the screw shaft of the vertical conveying mechanism 6 and is centered on the vertical axis y that is the axis of the lower end boss portion 42a of the unloading case 42. Thus, it can turn with respect to the carry-out case 42.

The vertical transport mechanism 6 is configured by a combination of a vertical screw 61 provided concentrically with the vertical axis y and a vertical feed cylinder 60 that houses the vertical screw 61.
The vertical feed cylinder 60 has a lower end side connected to the upper end side of the carry-out case 42, a gear portion 60 a on the outer periphery slightly above the connection location, and a pinion 62 that meshes with the gear portion 60 a. The turning electric motor 63 is configured to be turned around the vertical axis y. The turning electric motor 63 is fixed to the carry-out case 42 side.

A lower end side of the vertical screw 61 is rotatably supported by a bearing portion 42b on the lower end side of the carry-out case 42, and an input bevel gear 61a is provided on a shaft portion that protrudes downward from the bearing portion 42b. Wearing.
The input bevel gear 61a is linked to an interlocking mechanism 50 for transmitting the power of the bottom screw 41 to the vertical screw 61 via the input bevel gear 61a. The interlocking mechanism 50 includes a bevel gear portion 51a meshing with the input bevel gear 61a on one end side, a transmission shaft 51 having an input pulley 51b mounted on the other end side, and the input pulley 51b of the transmission shaft 51. And a transmission belt 52 stretched between an output pulley 41b provided at the shaft end of the bottom screw 41, and this interlocking mechanism 50 is provided with the bottom screw 41 and the vertical screw 61. It is arrange | positioned outside the space s for grain conveyance.
That is, the input pulley 51b, the output pulley 41b, and the transmission belt 52 constituting the interlocking mechanism 50 are arranged in a state exposed to the outside of the carry-out case 42, and the transmission shaft 51 is inside the carry-out case 42. However, the grain conveying space s provided with the bottom screw 41 and the vertical screw 61 is disposed outside. Therefore, the grain transport space s through which the grain passes is not narrowed by the presence of the interlocking mechanism 50.

  As shown in FIGS. 4 to 6, the transmission belt 52 includes a tension pulley 54 attached to the distal end side of the swing arm 53, and the swing pulley 53 so that the tension pulley 54 is directed in the belt pressing direction. The biasing spring 55 that pulls and biases is always biased toward the tension side.

As shown in FIGS. 4 and 7 to 9, an upper end case 67 is provided on the upper end side of the vertical feed cylinder 60, and an upper end that is spline fitted to the upper end side of the vertical screw 61 in the upper end case 67. The boss portion of the sprocket 61b is pivotally supported by a bearing 60b, and is connected to the longitudinal intermediate shaft 64 having an axis parallel to the upper end sprocket 61b by the bevel gear mechanism. And a horizontal intermediate shaft 65 are provided.
An upper end splat 61b that is spline-fitted to the upper end side of the vertical screw 61 and a sprocket 64a provided on the upper end side of the vertical intermediate shaft 64 are connected by a transmission chain 66, and the horizontal intermediate shaft 65 The end opposite to the side where the bevel gear mechanism is provided is provided so as to protrude laterally outward from the vertical feed cylinder 60, and an output sprocket 65a is mounted on the protruding end. The power of the vertical transport mechanism 6 is transmitted to the horizontal transport mechanism 7 via 65a.

The horizontal transfer mechanism 7 receives a grain lifted in the vertical feed cylinder 60 and carries it out to the outside, and a conveying screw 71 provided in the grain carry-out cylinder 70; It is composed of the combination.
The grain carry-out cylinder 70 includes a relay case part 72 attached to the upper end side of the vertical feed cylinder 60, and a transverse feed cylinder part 73 connected to the lower side of the grain carry-out direction with respect to the relay case part 72. And a conveying screw 71 is provided inside the grain unloading cylinder 70.

  In the relay case portion 72, a relay shaft 74 including a relay sprocket 74a that receives power transmitted from an output sprocket 65a provided in a state of projecting laterally outward from the vertical feed cylinder 60, and these output sprockets. A transmission chain 75 stretched between 65a and the relay sprocket 74a, a relay bevel gear 74b provided at the end of the relay shaft 74 opposite to the side where the relay sprocket 74a is provided, In addition, it is configured to accommodate the start end side of the conveying screw 71 having an input bevel gear 71a meshing with the relay bevel gear 74b at the shaft end.

An upper end case 67 is provided at the upper end portion of the vertical feed cylinder 60, and the upper end case 67 is provided with a horizontal support cylinder portion 67a including a ball bearing 67a that rotatably supports the laterally intermediate shaft 65, A communicating cylinder part 67b provided with a communication port for sending out the grain from the upper end side of the vertical feeding cylinder 60 at a position opposite to the side where the horizontal support cylinder part 67a is provided across the vertical feeding cylinder 60. It has.
The relay case portion 72 is formed with a support portion 76 that is externally fitted to the lateral support cylinder portion 67a and an introduction port cylinder portion 77 that is externally fitted to the communication cylinder portion 67b. The introduction cylinder part 77 and the support cylinder part 76 have a horizontal axis x that is concentric with the axis of the horizontal intermediate shaft 65 orthogonal to the vertical axis y of the vertical screw 61 as a cylinder center line. And the horizontal axis x is configured to be the vertical oscillation axis of the grain unloading cylinder 70.

As shown in FIGS. 7 and 9, in the relay case portion 72, along the extending direction of the grain unloading tube 70 from a part of the outer peripheral side of each of the support tube portion 76 and the introduction port tube portion 77. Arm members 78, 78 are provided so as to project, and a bar 79 is provided in a state in which the projecting ends of the arm members 78, 78 are connected to each other.
A cylinder mounting bracket 68 protrudes from the upper end of the vertical feed cylinder 60 at a position below the position where the arm members 78 and 78 exist, and is provided on the tip side of the cylinder mounting bracket 68. A hydraulic cylinder 56 for adjusting the vertical position of the lateral transport mechanism 7 is mounted across the support pin 69 and the bar 79 on the distal end side of the arm members 78 and 78.

  The transverse feed cylinder portion 73 of the grain carry-out cylinder 70 includes a flange portion 73a connected to a flange portion 72a provided at the cylinder end portion of the relay case portion 72 on one end side, and the grain on the other end side. And a feed screw 71 provided in a series from the inside of the relay case portion 72 is provided inside the lateral feed tube portion 73.

[Configuration of power transmission system]
FIG. 10 is a diagram showing a power transmission system of the engine 12, and the engine 12 mounted and deployed in the lateral direction has a main output shaft 12A that protrudes toward the inside of the body and a protrusion that protrudes toward the outside of the body. The auxiliary output shaft 12B for driving the auxiliary machine is provided, and the crawler traveling device 11, the pre-cutting device 14, and the threshing device 13 are driven by the power extracted from the main output shaft 12A.

  The outward secondary output shaft 12B is provided with a two-output pulley 80, and a transmission belt 81 wound around the output pulley 80 is used to provide a water pump 82 for cooling the engine, a radiator cooling fan 83, While the generator 84 is driven, another transmission belt 85 wound around the output pulley 80 is wound around the input pulley 86 to constitute a power transmission system to the bottom screw 41 and the grain carrying-out device 5. Yes.

  The belt-type power transmission system to the bottom screw 41 is provided with a grain carry-out clutch 87. As shown in FIGS. 1 and 13, the grain carry-out clutch 87 is configured as a tension clutch that presses the tension roller 88 against the transmission belt 85. As will be described later, The grain carry-out clutch 87 is turned on and off by the operation of the grain carry-out lever 31 which is an example of a clutch operating tool.

  In the center of the input pulley 86 that receives engine power as described above, the intermediate transmission shaft 89 is fitted in the spline so as to be slidable in the axial direction. The intermediate transmission shaft 89 is disposed concentrically with the input shaft 47 supported by the input case 46, and the intermediate transmission shaft 89 is slidably biased toward the input shaft 47 by a spring 89a that is externally fitted. ing. The intermediate transmission shaft 89 and the input shaft 47 are interlocked and connected via a meshing type intermittent clutch 48 at a butt facing portion.

  In the grain carrying-out device 5, from the output pulley 41b provided outside the grain tank 4 of the bottom screw 41 at the rear end portion of the bottom screw 41, to the input pulley 51b provided at the rear end portion of the transmission shaft 51. The driving force is transmitted via the transmission belt 52, and the power is transmitted from the transmission shaft 51 to the vertical screw 61 by the bevel gear mechanism.

The vertical screw 61 and the conveying screw 71 in the grain unloading cylinder 70 are interlocked and connected as follows.
That is, the upper end sprocket 61b provided at the upper end portion of the vertical screw 61 and the sprocket 64a provided at the upper portion of the vertical intermediate shaft 64 are connected by the transmission chain 66, and the bevel gear 64b at the lower end of the vertical intermediate shaft 64 is connected. And a bevel gear 65 b provided at one end of the lateral intermediate shaft 65, and a transmission chain 75 is extended over a sprocket 65 a formed at the other end of the lateral intermediate shaft 65 and a relay sprocket 74 a provided at one end of the relay shaft 74. The bevel gear 74b for relay provided on the other end of the relay shaft 74 is engaged with the input bevel gear 71a provided on the outside of the grain unloading cylinder 70 of the conveying screw 71, so that the engine power is the grain. It is configured to be transmitted to the conveying screw 71 in the carry-out cylinder 70.

[Configuration related to operation of grain unloading device]
The turning operation of the grain carry-out device 5 around the vertical axis y and the vertical swing around the horizontal axis x are performed as follows.

  As shown in FIG. 13, the switch operating tool 32 provided on the upper surface side of the intake duct 26 in the forwardly lowered posture includes a first operation switch 32 a provided on the upper side and a second operation switch 32 b provided on the lower side. The first operation switch 32a is a seesaw switch that selects and operates either the left or right of the turning direction in the horizontal direction of the grain carry-out cylinder 70, and the second operation switch 32b is a switch of the grain carry-out cylinder 70. This is a seesaw switch that selects the rocking direction as either up or down.

  The first operation switch 32a is configured as a forward / reverse push-in operation type that is neutrally returned and is provided in a lateral orientation, and a lateral transfer mechanism that is pushed in only during the push-in operation of either the left or right push-in portion. 7 is turned and the turning is stopped when the push-in is released. The second operation switch 32b is configured as a forward / reverse push-in operation type that is neutrally returned and is arranged in a vertical posture. The second operation switch 32b is horizontally transported in the push-in direction only while the push-in portion is pushed in. When the mechanism 7 is swung up and down and the push-in is released, the up-and-down movement is stopped.

The wirings of the first operation switch 32a and the second operation switch 32b are connected to a control device (not shown) through the inside of the intake duct 26, and the control device operates based on the operation of the first operation switch 32a. An operation command is output to 63, and a command to extend / contract the hydraulic cylinder 56 based on the operation of the second operation switch 32b is output to a control solenoid valve (not shown).
Since the first operation switch 32a and the second operation switch 32b are arranged so as to be located on the outer side of the fuselage with respect to the driver's seat 20, the first operation switch 32a and the second operation switch 32b can be seated on the driver's seat 20 and operated. It can be operated even from the ground.

The vertical swing range around the lateral axis x of the grain discharge cylinder by the first operation switch 32a is determined by the expansion / contraction length of the hydraulic cylinder 56, and the lower limit position and the upper limit position of the vertical swing range. Is configured to be changeable by changing the position of the connection point with the cylinder mounting bracket 68 provided in the vertical cylinder 60.
The bracket 68 is formed with two upper and lower connecting holes 68a and 68b. When the lower end side of the hydraulic cylinder 56 is connected to the upper connecting hole 68a, as shown by the solid line in FIG. The lower limit position of the swing range is a substantially horizontal position, and the grain carry-out cylinder 70 can be swung between the horizontal position and a range above it.
When the lower end of the hydraulic cylinder 56 is connected to the lower connecting hole 68b, the lower limit position of the vertical swing range is set downward from the lateral axis x as shown by the solid line in FIG. The grain carrying cylinder 70 can be swung in a posture extending downward from the lateral axis x and in a range above it. In this state, it is convenient for carrying out bagging work on the ground. Can be used.

  The turning range of the grain carrying cylinder 70 about the vertical axis y by the second operation switch 32b is a detector such as a potentiometer that detects the rotation angle of the pinion 62 driven by the turning electric motor 63 (FIG. And when the vertical feed cylinder 60 turns at a predetermined angle, the turning drive by the turning electric motor 63 is cut off. The turning range of the vertical feed cylinder 60 is stored in the grain carrying-out cylinder 70. It is set to about 240 degrees around the axis y in the vertical direction from the stowed position, outward from the side of the fuselage on the side where the boarding operation unit 2 is present, from the stowed position supported by the support base 30.

  The guide body 45 lifts and guides the grain unloading cylinder 70 when the grain unloading cylinder 70 is operated in the retracted position with the posture downward. This is for avoiding contact with the canopy 21 and the like by operating the first operation switch 32a and the second operation switch 32b by touching a portion near the downward axis y and lifting the grain carrying cylinder 70. Then, if the grain unloading cylinder 70 is moved so as to avoid the state in which it comes into contact with the canopy 21 or the like, the guiding action by the guide body 45 is not necessary, and therefore it is not performed.

A grain carry-out clutch lever 31 provided between a side surface of the intake duct 26 on the side of the body and the driver's seat 20 is used for carrying out a grain provided in a belt-type power transmission system to the bottom screw 41. Since the clutch 87 and the operation wire 81 are interlocked and connected, if the grain carry-out clutch lever 31 is operated to be pushed downward and the tension roller 78 is separated from the transmission belt 85, power is transmitted to the bottom screw 41. Is cut off, and grain discharge is stopped. On the contrary, when the grain carrying-out clutch lever 31 is pulled upward and rearward and the tension roller 78 is pressed against the transmission belt 85 and urged, the bottom screw 41 is driven, and the grain discharge is started.
The operation of the grain carry-out clutch lever 31 can be performed by sitting on the driver seat 20 and also from the ground.

[Other Embodiment 1]
In the above-described best embodiment, the configuration in which the entire vertical swing range of the grain carry-out cylinder 70 is changed is shown. However, the change of the vertical swing range of the grain carry-out cylinder 70 is changed to this. Not limited to the one that only changes the lower limit side of the vertical swing range, the one that only changes the position of the upper end side, or the width of the vertical swing range to change the upper limit and lower limit You may make it change the position of both.

[Second embodiment]
In the best embodiment, a combine having a structure including the canopy 21 in the boarding operation unit 2 is shown. However, a combine not including the canopy 21 may be used. In this case, it is desirable to configure the guide body 45 so as to bypass the boarding operation unit 2 and the prefilter 18 in the vicinity thereof.

[3 of another embodiment]
Of course, the combine is not limited to the ordinary combine, and may be applied to the self-decomposing combine.

Right side view of the entire ordinary combine Plan view of the entire ordinary combine Side view showing the grain recovery device Rear view showing the grain recovery device Cross-sectional view in the front-rear direction showing the interlocking mechanism between the bottom screw and the vertical screw Cross-sectional view in the left-right direction showing the interlocking mechanism between the bottom screw and the vertical screw Horizontal sectional view showing the interlocking mechanism between the vertical screw and the conveying screw VIII-VIII sectional view in FIG. Side view showing the connection between the vertical feed tube and the grain unloading tube Diagram showing transmission system Rear view showing the vertical swing range of the grain carry-out cylinder Rear view showing the vertical swing range of the grain carry-out cylinder The perspective view which shows the operation part of a grain collection | recovery apparatus

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Self-propelled machine body 2 Boarding operation part 3 Grain collection | recovery apparatus 4 Glen tank 5 Grain unloading apparatus 6 Vertical conveyance mechanism 7 Horizontal conveyance mechanism 20 Driving seat 21 Canopy 26 Intake duct 31 Grain unloading clutch lever 32 Switch operating tool 32a 1st Operation switch 32b Second operation switch 41 Bottom screw 43 Ceiling part 44 Cover body 45 Guide body 50 Interlocking mechanism 60 Vertical feed cylinder 61 Vertical screw 70 Grain unloading cylinder 71 Conveying screw x Horizontal axis y Vertical axis

Claims (14)

A self-propelled aircraft is equipped with a glen tank on the rear side, and a vertical feed cylinder is provided to lift the grain taken out from the lower end side of the glen tank to the upper side. A combine provided with a grain unloading cylinder configured to be rotatable in the horizontal direction around the vertical axis of the cylinder and swingable in the vertical direction around the horizontal axis near the upper end of the vertical feed cylinder. ,
The oscillating range in the vertical direction around the horizontal axis of the grain carry-out cylinder can be changed from the attitude in which the cylinder axis of the grain carry-out cylinder is downward from the horizontal to the upward direction, and The rotation range in the horizontal direction around the vertical axis of the grain carrying cylinder is set to a rotation angle range including a region on the self-propelled aircraft,
Furthermore, in the rotation angle range corresponding to the region on the self-propelled machine body in the horizontal rotation range around the vertical axis of the grain carry-out cylinder, the grain carry-out cylinder is a self-propelled machine body. A combine comprising a guide body that lifts and guides the grain unloading tube in the downward posture as it moves upward.   2. The combine according to claim 1, wherein a boarding operation part is disposed in a front portion of the self-propelled machine body, and the boarding operation part is included in a rotation range in a horizontal direction of the grain carrying-out cylinder.   The combine according to claim 1 or 2, wherein the swing range in the vertical direction of the grain carry-out cylinder is configured such that the height on the lower limit side can be changed.   The rotation range in the horizontal direction of the grain carry-out cylinder around the vertical axis of the vertical feed cylinder is determined by the position on the self-propelled machine body including the area where the boarding operation unit is located, and the side where the boarding operation unit is located. The combine according to claim 2 or 3, wherein the combine is about 2/3 round including the laterally outer region of the running body.   The guide body is self-propelled near the vertical feed cylinder so as to guide the position near the rotation center side in the longitudinal direction of the grain discharge cylinder between the rotation center of the grain discharge cylinder and the discharge port. The combine according to any one of claims 1 to 4, which is provided on the airframe.   The combine according to any one of claims 1 to 5, wherein the guide body is provided on a ceiling portion on the rear side formed lower than the ceiling portion on the front side of the Glen tank.   The combine according to any one of claims 1 to 6, wherein the guide body is provided on an upper surface side of a lid body that closes a maintenance opening formed in an upper portion of the Glen tank.   The guide body sets the guide range so as to guide the grain unloading cylinder above the precleaner provided in the region on the self-propelled machine within the rotation range of the grain unloading cylinder in the horizontal direction. The combine according to any one of claims 1 to 7.   The driver's seat of the boarding driving part is arranged on the upper side of the driving part cover that covers the engine, and an intake duct for introducing outside air to be supplied into the driving part cover is provided at a position on the outer end side of the body from the driving seat, The combine according to any one of claims 2 to 8, wherein a switch operating tool is provided on the upper surface side of the intake duct to perform horizontal rotation and vertical swing of the grain carry-out cylinder.   The switch operation tool includes a seesaw switch that performs a horizontal rotation operation of the grain carry-out cylinder by two-way selective swing switching, and an up-and-down swing operation of the grain carry-out pipe at two positions. The combine according to claim 9, wherein the combiner is configured in combination with a seesaw switch that performs swing switching.   The combine according to any one of claims 2 to 10, wherein an operation tool of a grain carry-out clutch for carrying out the grain stored in the Glen tank is provided at a position closer to the outside of the fuselage than the driver seat. .   Provide an interlocking mechanism that links the bottom screw provided in the Glen tank, the vertical screw provided in the vertical feed cylinder, and the conveying screw in the grain unloading cylinder on the outside of the screw cylinder that houses each screw. The combine according to any one of claims 1 to 11.   The combine according to claim 12, wherein the interlocking mechanism for interlocking the bottom screw and the vertical screw is constituted by a belt transmission mechanism.   The combine according to any one of claims 1 to 13, wherein the Glen tank is configured to be rotatable around the vertical axis about the outside of the machine body.

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