JP2010172265A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the weight of a support for supporting a grain taking out cylinder without installing a long support for exclusive use from a machine body frame of a self-propelled machine body located in the lower part when a housing supporting pedestal for the grain taking out cylinder is installed. <P>SOLUTION: A combine harvester is obtained by installing the housing supporting pedestal 30 for housing and supporting the grain taking out cylinder 70 for taking out threshed materials in a grain tank 4 through a stay 64 stood from a transverse frame 57 installed in the upper part of right and left vertical frames 58 forming an outer frame of a threshing device 13 at the front of the threshing device. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a combine equipped with a grain unloading cylinder for unloading threshing in a threshed Glen tank.

  As shown in FIG. 1 and FIG. 2 of Patent Document 1, the threshing device 3 is provided on one side of the left and right direction of the self-propelled aircraft 2 and the grain tank 9 is provided on the other side, and the threshing in the grain tank 9 is carried out. There is known a technique in which a storage support for placing and supporting a longitudinal intermediate portion of a grain carry-out cylinder is provided at a front portion of a threshing apparatus.

Japanese Patent Laying-Open No. 2005-102504

  The storage support for the grain unloading cylinder shown in Patent Document 1 is disposed at the right side position of the threshing device in the front part of the threshing device 3 when viewed from FIGS. 1 and 2.

  In the storage support for the grain carry-out cylinder, the support for storage of the grain carry-out cylinder is fixed to a long column that is erected on the side of the threshing device. In the structure described above, the storage support for the heavy grain discharge tube is supported by the long support column, and thus a strong support column for supporting the grain discharge tube has to be provided.

  The present invention aims to reduce the weight of the column supporting the grain unloading cylinder without providing a dedicated long column from the body frame of the self-propelled machine body located in the lower part when providing the support for storing the grain unloading cylinder. There is.

[Configuration of the first invention]
1st invention is equipped with a threshing apparatus in one side of the left-right direction of a self-propelled machine body, a grain tank is provided in the other, and the grain carrying-out pipe which carries out the threshing in the grain tank is located in the rear part of the grain tank. A storage support is provided at the front of the threshing device, which is provided so as to be pivotable about a downward axis and swingable in a vertical direction about a horizontal axis, and to place and support a longitudinal intermediate portion of the grain carrying-out cylinder. A stay that is installed in a horizontal frame on the upper part of the left and right vertical frames of the front part of the threshing device that forms the outer frame of the threshing device. A storage support for the grain unloading cylinder is provided.

[Operation of the first invention]
According to the first aspect of the present invention, the storage support for the grain carry-out cylinder is mounted on the upper part of the strong gate-shaped frame frame composed of the left and right vertical frames and the horizontal frame constructed on the upper part of the vertical frame. Since it is provided, the length of the stay interposed between the horizontal frame and the storage support base can be shortened.
The left and right vertical frames having an interval corresponding to the width of the threshing device support the stay and the storage support base in a bifurcated shape with sufficient strength.

[Effect of the first invention]
Therefore, in providing a storage support for the grain unloading cylinder, it is necessary to provide a dedicated long column from the machine body frame by effectively using the left and right vertical frames, which are existing members that form the outer frame of the threshing device. No (even if a dedicated member for supporting the stay is provided, it may be a small-scale member), and can be easily formed with a short-length stay. As the strength of the stay, it is sufficient if it has strength as a short pillar, and it can be made a small and lightweight stay, and the weight can be reduced.

[Configuration of the second invention]
According to a second aspect of the present invention, in the configuration of the first aspect of the present invention, the horizontal frame is a transmission case in which a transmission device that drives a barrel of the threshing device is built.

[Operation and effect of the second invention]
Since the transmission case, which is an existing member with a built-in transmission device for driving the threshing device, also serves as a horizontal frame that supports the stay, the support structure of the stay and the support base for storage could be simplified.

It is a right view of a normal type combine. It is a top view of a normal type combine. It is a left view of a normal type combine. It is a perspective view which shows the attachment position of the switch operating tool of a grain collection | recovery apparatus. It is a front view which shows the support stand for storing of the outer frame of the threshing apparatus front part, and the grain carrying-out cylinder supported by the outer frame. It is a partially broken side view which shows the attachment structure of the storage support stand. It is a top view which shows the attachment position of the support stand for storage of a normal use state. It is a top view which shows the attachment position of the support stand for storage at the time of shipment. (A) is sectional drawing which shows the attachment structure of the switch operating tool of a grain collection | recovery apparatus, (b) is the same front view.

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

〔overall structure〕
1 to 3 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, and a boarding driving unit 2 equipped with a driver's seat 20 on the self-propelled body 1. And an engine 12 positioned below the driver seat 20, a threshing device 13 for throwing in a processing object to be threshed and threshing and sorting, and a grain collection device 3 for recovering the threshed processing object 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 a lateral 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.

[Crawler traveling device]
The crawler traveling device 11 includes a track frame 9 which is connected to the body frame 10 via a frame leg 8 and which faces the front and rear of the body, and is supported on the track frame 9 along the longitudinal direction of the track frame 9 so as to be freely rotatable. It is supported by a plurality of grounding wheels 33, a tension ring body 34 supported in a freely swinging manner at the rear end of the track frame 9, and a bracket 16 attached to the front end side of the track frame 9 so as to be driven and rotated. Crawler drive wheel body 35, two front and rear upper rolling wheels 36, 36 supported by loosely supported front and rear brackets 19, 19 standing at an interval in the front-rear direction intermediate portion of the track frame 9, and the track frame 9, a swinging wheel 37 that can swing up and down attached to the lower end of the arm 21 that can swing up and down around the axis P of the left and right support shaft 46 pivotally supported at the center of the arm 9. It is then configured with a crawler belt 38 as rubber crawler endless belt that is wound over the entire wheel unit 33-37. The rocking wheel 37 is disposed between the front and rear upper rollers 36, 36 (front and rear intermediate position).

  A saddle-shaped guide 39 for preventing the wheel from coming off is provided between the three ground contact rollers 33 on the front side and between the two ground contact rollers 33 on the rear side and the tension ring body 34.

  A support shaft 46 fixed to the upper end portion of the arm 21 is supported by a boss fixed to the upper end surface of the track frame 9, and the arm 21 is urged in a downward swinging manner by an urging mechanism (not shown). The lowering of the arm 21 by the urging mechanism is prevented by a lower stopper 48 fixed to the track frame 9. The lower limit of the rocking wheel 37 pivotally supported on the lower end of the arm 21 is determined by the lower stopper 48. The arm 21 is prevented from rising due to the ground reaction force by an upper stopper 49 fixed to the track frame 9. Thereby, the upper limit position of the rocking wheel 37 is determined.

[Boarding Driving Department]
In the boarding operation unit 2, the driver's seat 20 is arranged on the upper side of the driving unit cover 22 formed in a box shape so as to cover the upper side of the engine 12, and the driving unit cover 22 also serves as a seat support. It is configured.
On the front side of the driver's seat 20, there is provided a control tower 24 erected from the front end portion of the operation section floor 23 on the body frame 10, and the control box 25 extends from the left side of the control tower 24 to the driving section cover 22 on the rear side. In the right side of the driver seat 20, an intake duct 26 for taking in outside air from the upper side of the lateral outer side of the fuselage through the dust net 26 a is integrally formed with the driving unit cover 22 on the engine 12 side. It is connected.

  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 the cutting pretreatment device 14 are provided. A cutting clutch lever 29 for intermittently driving is provided. Various other instruments are provided on the operation panel surface formed on the upper surface side of the control tower 24 and the control box 25.

As shown in FIG. 1 and FIG. 4, on the upper surface side of the intake duct 26, the grain unloading device 5 among the grain tank 4 and the grain unloading device 5 is provided. On the other hand, a switch operating tool 32 for selecting and operating the grain carry-out position is provided.
Further, a grain carry-out device for taking out the grains stored in the grain tank 4 of the grain collection device 3 to the outside between the side surface of the intake duct 26 on the in-machine side and the driver seat 20. A grain carry-out clutch lever 31 is provided as an operation tool of the grain carry-out clutch 87 that can be switched between a state of driving 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 with respect to the engine 12 is provided on the rear side of the driver seat 20, and a long cylindrical intake pipe 51 is connected to the air cleaner 17. The upper portion 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 51 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.

  Of the intake pipe 51, a cylinder 52 (inner cylinder) connected to the precleaner 18 is fitted in a cylinder 53 (outer cylinder) therebelow. The outer cylinder 53 has a pair of elongated holes 53a formed symmetrically in the upper position and a pair of bolt holes 53b formed symmetrically in the lower position, and the inner cylinder 52 has a pair of symmetrically formed holes. Bolt holes 52a are formed. By inserting a bolt (not shown) through the pair of bolt holes 52a of the inner cylinder 52 and the pair of upper long holes 53a or the lower bolt holes 53b of the outer cylinder 53 and tightening the bolts, the precleaner 18 is moved vertically. It can be fixed so that the position can be changed. At the time of shipping and transporting, for example, the inner cylinder 52 of the pre-cleaner 18 is pushed into the outer cylinder 53 of the air cleaner 17 as shown in FIGS. Lower the top edge height.

[Threshing part]
The threshing device 13 includes a handling chamber in which a wind sorting chamber is formed in the lower portion and a front end is connected to the feeder 15 in the upper portion. A cylindrical transmission case 57 having a built-in transmission device such as an input shaft for driving the handling cylinder shaft is provided in front of the front wall of the handling chamber. The transmission case 57 is installed on the upper part of the left and right vertical frames 58 at the front of the threshing device 13 that forms the outer frame of the threshing device 13. Bolt insertion attachment portions 59 for attaching the transmission case 57 to the front surface of the vertical frame 58 are formed on the left and right upper and lower sides of the transmission case 57. Bolts are passed through the bolt insertion holes of the attachment portion 59 and the front portion of the vertical frame 58 is inserted. Screwed on. The transmission case 57 functions as a horizontal frame that constitutes an outer frame of the threshing device 13.
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 product is sorted into threshing grains and swarf by a sorting processing device (not shown) arranged below the handling cylinder, and the threshed grain is converted into a grain tank 4 of the grain collecting device 3. It is comprised so that it may supply to. 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.

[Glentank related]
The Glen tank 4 includes a bottom screw 41 that feeds grains stored in the lower part of the tank body 40 backward.
As shown in FIG. 1, the lower rear end of the grain tank 4 is connected to a carry-out case 42 that supports the rear end portion of the bottom screw 41, and the grain tank 4 and the carry-out case 42 have a vertical axis. 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 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 70 of the grain delivery apparatus 5 is provided in the cover body 44. A guide body 45 is provided for guiding the maintenance opening. By holding the guide body 45 by hand, the maintenance opening can be easily opened and closed.

  1 to 3 show a state in which the lid body 44 to which the guide body 45 is attached is removed. In FIGS. 1 and 2, the lid body 44 and the guide body 45 are indicated by a two-dot chain line. The grain discharge cylinder 70 shown in FIGS. 1 to 3 supports the grain unloading cylinder 70 on the storage support base 30 in a state where the storage support base 30 is lowered to the lowest position and moved to a position closer to the center of the machine body. The figure of the state made to show is shown. The precleaner 18 shown in FIGS. 1 to 3 is also lowered to the lowest position.

The guide body 45 lifts and guides the grain unloading cylinder 70 in a downward posture from the horizontal as the grain unloading cylinder 70 of the grain unloading device 5 moves above the self-propelled machine body 1. When the grain unloading cylinder 70 swiveling around the vertical axis y moves up and down on the self-propelled machine body 1, it swings up and down around the horizontal axis x. This is intended to place the pre-cleaner 18 having a high height on the target body and place it on the support 30 for storage on the body.
The guiding action by the guide body 45 is the range of rotation around the vertical axis y of the grain carry-out cylinder 70, and the lateral end of the machine body on the side where the boarding operation unit 2 is present from the position where the storage support 30 is present. The guiding action by the guide body 45 does not occur in other ranges.

[Storage support]
The storage support 30 is positioned higher than the top plate 13 a of the threshing device 13, and is attached to the upper end of a stay 64 that is erected at the intermediate portion in the left and right lateral direction of the transmission case 57 installed on the upper part of the vertical frame 58. It is attached.
The stay 64 includes an upper stay 64a and a lower stay 64b, and is fixed by a pin 65 that is inserted into a pin insertion hole 66 formed in both of them. In the lower stay 64b, pin insertion holes 66 are formed at two locations, upper and lower, and in normal use, the lower stay 64b and the upper stay 64a are connected through the pin 65 to the pin insertion hole 66 on the upper side of the lower stay 64b. (State shown by a two-dot chain line in FIG. 6). When the pin 65 is passed through the pin insertion hole 66 on the lower side of the lower stay 64b and the upper stay 64a is connected to the lower stay 64b (as shown by the solid line in FIGS. 5 and 6), the grain carrying cylinder 70 is placed on the storage support 30. Can be lowered, the front end height of the grain carry-out cylinder 70 can be lowered, and the maximum vehicle height of the combine at the time of shipment conveyance (container storage) can be lowered.

An input pulley 74 that receives engine power is provided on the left side (right side in FIG. 5) of the transmission case 57, and an inversion input pulley 74a is provided on the right side (left side in FIG. 5). The transmission case 57 includes a forward rotation input shaft (not shown) for transmitting power from the input pulley 74 and a reverse input shaft (not shown) for transmitting power from the reverse input pulley 74a. In addition, power is transmitted from the left and right input shafts to the handling cylinder via bevel gears provided at the left and right central portions. A bevel case 75 is attached to the left and right central portions of the transmission case 57, and the bevel gear 75 and a bevel gear of a barrel shaft are built in the bevel case 75.
A flange 76 is formed on the outer periphery of the rear opening of the bevel case 75, and the flange 76 and the front chamber wall 77 are fixedly connected.
Normally, the reversing input shaft is in a power cut-off state, and the handling cylinder is driven by the power from the forward rotation input shaft.When clogging occurs, the power to the forward rotation input shaft is cut off, A clutch that transmits power to the reverse input shaft is inserted to reverse the cylinder so that clogging is eliminated.

  A stay mounting portion 72 is formed on the left side of the central portion of the transmission case 57 and the upper portion of the bevel case 75. A plate-like support member 64 c at the lower end of the lower stay 64 b is fixed to the stay mounting portion 72 with a bolt 79.

  On the upper part of the upper stay 64a, a mounting plate 80 as a mounting portion of the storage support base 30 for fixing the grain unloading cylinder 70 to the storage support base 30 at two positions on the left and right is fixed. The mounting plate 80 is formed with a plurality of bolt holes 81a and 81b so that the position of the storage support 30 can be changed to two locations on the left and right. The bolt hole 81a formed in the mounting plate 80 is a hole in a normal use state, and the bolt 82 is passed through the bolt hole 81a to bolt the storage support 30 as shown in FIG. As shown in FIG. 8, when the combine is loaded on the container, the bolt hole 81b is formed in the state where the storage support 30 is lowered through the pin 65 through the pin insertion hole 66 on the lower side of the lower stay 64b. It is a hole for bolting the storage support 30 at the time of shipment in order to bring the tip of the carry-out cylinder 70 closer to the center in the left-right direction of the self-propelled machine body 1. In this case, the guide body 45 is removed and the pre-cleaner 18 is lowered so that it does not become an obstacle when the grain unloading cylinder 70 is moved closer to the center in the left-right direction.

  The storage support base 30 has an L-shape in a side view that is bolted to a mounting plate 80 at the upper end of the upper stay 64a, and a support plate 30a in which a U-shaped recess that is widened in a front view is formed. It is comprised with the strip board 30b for grain carrying-out cylinder mounting attached along the edge of a character-shaped recessed part.

[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. Thus, the entire grain unloading device 5 can be swung with respect to the unloading case 42 around the vertical axis y that is concentric with the screw axis of the vertical conveying mechanism 6.

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 60a on the outer periphery slightly above the connection location, and a pinion 62 that meshes with the gear portion 60a. The electric motor 63 for rotation is configured to be driven to rotate about the vertical axis y. The turning electric motor 63 is fixed to the carry-out case 42 side.

  The bottom screw 41 and the vertical screw 61 are interlocked and connected via an interlocking mechanism 50. As shown in FIGS. 1 and 2, an upper end case 67 is provided on the upper end side of the vertical feed cylinder 60, and the power of the vertical transfer mechanism 6 is transmitted from the upper end case 67 to the horizontal transfer mechanism 7. Has been.

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 lateral feed cylinder portion 73 connected from the upper end case 67 of the vertical feed cylinder 60 to the lower side in the grain carry-out direction, and a conveying screw 71 is provided inside the grain carry-out cylinder 70. It is.

  An upper end of the hydraulic cylinder 56 is connected across the lateral feed cylinder 73 and an arm member 78 that swings integrally therewith, and a lower end is attached to a cylinder mounting bracket 68 attached to the upper end of the vertical feed cylinder 60. Connected.

  The belt-type power transmission system to the bottom screw 41 is provided with a grain carry-out clutch 87. As shown in FIG. 1, the grain carrying 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 carrying out clutch 2 from the boarding operation unit 2. 87 is turned on and off by operating the grain carrying-out lever 31 which is an example of a clutch operating tool.

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

  A cover 55 projecting upward from the inclined surface 54 is provided on the upper side of the inclined surface 54 of the intake duct 26 in the forwardly lowered posture, and the switch operating tool 32 is provided at a position lower than the upper surface of the cover 55. As shown in FIGS. 4 and 9, the switch operation tool 32 is configured by a combination of a first operation switch 32 a provided on the upper side and a second operation switch 32 b provided on the lower side. The switch 32a and the second switch 32b are disposed in a recess in which the upper surface of the cover 55 is recessed, and the first switch switch 32a and the second switch 32b are disposed so as to be hidden by the cover 55 in a side view. 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 moves the swing direction of the grain carry-out cylinder 70 up or down. This is a seesaw switch to select.

  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 provided in a vertical orientation, and the horizontal transfer mechanism is pushed in only in the push-in direction of either of the upper and lower push-in portions. 7 is moved up and down, and when the push is released, the up and down movement is stopped.

The wires 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. The operation command is output to the control valve, and the command to extend and contract the hydraulic cylinder 56 based on the operation of the second operation switch 32b is output to the 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 present invention can also be applied to a self-decomposing combine that threshs while holding the harvested cereal with a feed chain, in addition to a normal combine that threshs rice wheat grains, straw, straw, and beans.

DESCRIPTION OF SYMBOLS 1 Self-propelled machine body 4 Glen tank 13 Threshing apparatus 30 Storage support stand 57 Horizontal frame 58 Vertical frame 64 Stay 70 Grain take-out cylinder x Horizontal axis y Vertical axis

Claims (2)

A self-propelled machine is equipped with a threshing device on one side in the left-right direction, a grain tank on the other side, and a grain carry-out cylinder for carrying out the threshing in the grain tank around a vertically-oriented axis located at the rear of the grain tank. A combine that is provided in a front portion of the threshing device with a storage support table that is swingable and swingable in a vertical direction around a horizontal axis, and that supports and supports the intermediate portion in the longitudinal direction of the grain carry-out cylinder. There,
A horizontal frame is constructed on the upper part of the left and right vertical frames at the front part of the threshing device forming the outer frame of the threshing device, and A combine with a storage support.   The combine according to claim 1, wherein the horizontal frame is a transmission case having a built-in transmission device for driving a handling cylinder of the threshing device.

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