JP4046532B2 - Combine harvester structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a harvesting device structure for a combine that includes a pulling device and a reaping device acting on a planted cereal culm, and a conveying device that supplies the threshing device to the threshing device.
[0002]
[Prior art]
In the harvesting part of the above-mentioned combine, cereal grains and straw scraps may be clogged and internal cleaning may be required. Conventionally, there have been the following problems when performing this cleaning or performing management work for inspecting or repairing the inside.
[0003]
[Problems to be solved by the invention]
Conventionally, when performing the above-mentioned cleaning and management work of the cutting part, the weeding frame and weeding tools are likely to become obstacles, or the bottom side of the cutting part is narrow due to the weeding frame etc., making the work difficult It was.
[0004]
An object of the present invention is to provide a harvester structure for a combine that can be easily cleaned and managed on the bottom side.
[0005]
[Means for Solving the Problems]
The configuration, operation, and effect of the invention according to claim 1 are as follows.
[0006]
〔Constitution〕
In the harvesting part structure of the combine equipped with the pulling device and the harvesting device that act on the planted cereal cocoon, the conveying device that supplies the threshing device to the threshing device
Of the weed frames facing the fuselage that forms the culm pulling path and supports the weeding tool at the front end, it is positioned more centrally than the outer weeding frame located at the outermost side in the left-right direction the inner component grass frame and mounted for up and down swinging switched axial around located on the rear end side,
The up-and-down closed state in which the vertical height on the front end side of this inner weed frame is positioned at the height for cutting work, and the vertical height on the front end side is positioned below the front end side height of the outer weed frame It is characterized in that the posture can be switched freely between the lowered open state for management.
[0007]
[Action]
When the weeding frame is switched from the lifted closed state to the descending open state, the weeding frame is lowered than in the case of working, and the weeding tool is also lowered with the weeding frame and lowered than in the case of working. Is. As a result, when the cutting part is cleaned, inspected, or repaired, the weeding frame and the weeding tool can be lowered from the working position to become an obstacle and the bottom side of the cutting part can be opened.
[0008]
〔effect〕
Therefore, when cleaning or inspecting or repairing the cutting part, the weeding frame and weeding tools are not easily obstructed, and the bottom side of the cutting part is opened, and hands and tools are easily placed on the bottom side of the cutting part. You can work efficiently with a large work space.
[0009]
The structure, operation, and effect of the invention according to claim 2 are as follows.
[0010]
〔Constitution〕
In the configuration of the invention according to claim 1, wherein the cutting device is supported by the inner partial grass frame in a state of swing vertically together with the inner partial grass frame.
[0011]
[Action]
When the weeding frame is switched to the lowered open state, the cutting device is attached to the weeding frame and descends from the working level. As a result, by the lowering operation of the weeding frame, the reaping device can also be lowered to make it less likely to become an obstacle, or the interval with the upper carrier can be increased.
[0012]
〔effect〕
Therefore, the reaping device is less likely to become an obstacle, and a work space is formed between the reaping device and the transport tool above the reaping device, so that operations such as cleaning and inspecting the reaping device and its surroundings can be performed efficiently. . In addition, the cutting device is also lowered at a stroke by the lowering operation of the weeding frame, and the operation is simple.
[0013]
The structure, operation, and effect of the invention according to claim 3 are as follows.
[0014]
〔Constitution〕
In the configuration of the invention according to claim 1 or 2, conveyance guide cereal稈用is supported by the inner partial grass frame in a state of swing vertically together with the inner partial grass frame.
[0015]
[Action]
When the weeding frame is switched to the lowering open state, the conveyance guide is lowered on the weeding frame and is lowered from the working case. Thereby, the lowering operation of the weed frame can also lower the transport guide so that it does not easily become an obstacle, and can widen the distance between the transport guide and the transport tool.
[0016]
〔effect〕
Therefore, the conveyance guide is also less likely to become an obstacle, and a work space is formed between the conveyance guide and the conveyance tool, so that operations such as cleaning and inspection of the conveyance guide and the conveyance tool can be performed efficiently. Moreover, the conveyance guide is also lowered at a stroke by the lowering operation of the weeding frame, and the operation is simple .
[0017]
The configuration, operation, and effect of the invention according to claim 4 are as follows.
[0018]
〔Constitution〕
In the configuration of the invention according to any one of claims 1 to 3, the pulling device is vertically switched between a management ascending open state and a work descending closed state around an axis located on the upper end side. There is installation freely.
[0019]
[Action]
When the pulling device is switched from the lowered closed state to the lifted open state, the pulling device is lifted higher than that for work, and the front side of the cutting unit is opened. Thereby, when cleaning, inspection or repair of the cutting part, the front side of the cutting part can be opened so that the inside can be easily operated from the front of the cutting part.
[0020]
〔effect〕
When cleaning or inspecting or repairing the cutting part, the front side of the cutting part is also opened, so that the work on the inside can be easily performed from the front and the work can be performed efficiently.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1, a base end portion of a reaping portion frame of a reaping portion 10 is placed on a front side of a body frame 3 of a self-propelled aircraft equipped with a crawler type traveling device 1 and an operating portion 2. The cutting part frame is swung up and down by a lift cylinder 7 which is connected to the cutting part frame through a link mechanism 6 and is connected to the cutting part frame so as to move the cutting part 10 to the lower working position. It is configured to move up and down to the ascending non-working position, and a threshing device 4 and a grain tank 5 are provided on a self-propelled machine body to constitute a combine for harvesting rice, wheat and the like.
[0022]
That is, as shown in FIGS. 1, 2, and 4, the cutting unit 10 is configured to cut the planted cereals into a target to be cut by a plurality of weeding tools 11 arranged in the lateral direction at the front end of the cutting unit 10. Divide the target cereals into a plurality of culm pulling paths 12 that are arranged in the transverse direction of the machine body, and introduce each of the culm culling triggering paths 12. While raising the planted cereals introduced in 12 by the raising claws 25a of the raising devices 20a, 20b located on the side of the grain raising path 12, the stocker side is below the raising devices 20a, 20b. Is transported to a clipper-shaped reaping device 13 located at the end of the culm pulling path 12 by a front conveying device 30 provided with an endless rotating belt 31 located in the chopping device, and reaped. A plurality of harvested cereal grains from 13 above the harvesting device 13 Threshing feed of the threshing device 4 is transported backward by the rear transport device 40 having a plurality of transport rotating bodies 41 arranged in the transverse direction of the body, joined in the middle of the transport, and further transported rearward of the body. Supply to the start end of the chain 4a.
[0023]
The threshing device 4 sandwiches the stock side of the harvested cereal from the reaping unit 10 by the threshing feed chain 4a and conveys it to the rear side of the machine, and supplies the tip side to a handling room (not shown) to perform the threshing process Then, the threshing grains are conveyed to the grain tank 5 and collected.
[0024]
The mowing unit 10 will be described in further detail as follows.
[0025]
As shown in FIG. 3 and FIG. 10, an input case 51 that faces the body side and has an input pulley 51 a attached to one end and is configured to be pivotally connected to the body frame 3 around the axis P. The transmission case 52 includes a transmission case 52 facing the front and rear sides of the input case 51 connected to the intermediate side of the input case 51, and a transmission case 53 extending sideways and connected to the front end of the transmission case 52. A main cutting frame, a horizontal pipe pipe 54 located on the front side of the horizontal transmission case 53, a horizontal pipe pipe 55 located on the front side of the round pipe frame 54, and the horizontal transmission The ends of the round pipe frame 54 and the square pipe frame 55 are extended from both ends of the case 53 toward the front of the body and facing the front and rear of the body. The longitudinal weed frame 56 facing forward and backward of the airframe, and the longitudinal support frame 57 having a L-shaped cross section along the square pipe frame 55 and connected to the square pipe frame 55. An inner weed frame 58 facing forward and backward from a plurality of locations in the direction, a longitudinal transmission case 59 facing upward and downward of the fuselage, the lower end being connected to one end of the lateral transmission case 53, and A laterally raised transmission case 61 connected to the vertical transmission case 59 and connected to the vertical transmission case 59 and connected to the column 60 standing on the other end side of the horizontal transmission case 53. Thus, a cutting part frame is configured.
[0026]
The plurality of the plurality of the plurality of outer and inner weed frames 56, 58 are adjacent to each other in a state in which the grain raising path 12 is formed between a pair of weed frames 56, 58, 58 adjacent to each other. The outer and inner weed frames 56 and 58 form a plurality of the grain culling raising paths 12 arranged in the transverse direction of the machine body, and the weed tools 11 are attached to the front ends of the weed frames 56 and 58, respectively. The pulling devices 20a and 20b are attached to the front end side of the outer weeding frame 56 and the inner weeding frame 58 and the pulling transmission case 61 on the side of the front end of each of the rod raising paths 12, and the inner weeding is attached. The front conveying device 30 is supported by a frame 58 and the cutting main frame. The cutting device 13 is attached to the support frame 57, and the rear conveying device 40 is supported by the square pipe frame 55 and the cutting main frame.
[0027]
As shown in FIG. 4, each of the front conveying devices 30 is located above the reaping device 13 so as to be able to be driven and rotated, and above the conveying rotating body 41, the conveyance end side is located. The continuously rotating belt 31 and the inner weed frame 58 extend rearward from the vicinity of the portion supporting the pulling device 20b, and the extended end side is positioned in the vicinity of the conveying rotating body 41 and the endless rotating belt 31. And a conveyance guide 32 made of a round bar that is bent so that the middle enters the culm pulling path 12, and the culm of the culm with which the pulling devices 20a and 20b are acting. The side is guided rearward by the conveyance guide 32, and is cut by the arm-shaped locking conveyance claw 31a provided in the endless rotating belt 31 and the scraping by the protrusion provided around the outer peripheral portion of the conveyance rotation body 41. Sent to device 13 Writes.
[0028]
As shown in FIG. 4, the post-conveying device 40 includes a plurality of conveying rotating bodies 41, a starting-end side stock holding unit in which a conveying starting end portion is located above the conveying rotating body 41 located on the innermost side of the machine body. Conveyance chain 42, a confluence stock source sandwiching transport chain 43 having a transport start end connected to the transport end portion of the start end side stock holding medium transport chain 42, and a transport start end portion at the transport end portion of the confluence stock source sandwiching transport chain 43 Is connected to the end side stock holder clamping transport chain 44, the transport start end side above the start end stock share holding transport chain 42, and the transport start end portion is located above the inside of the body of the end stock share holding transport chain 44. The leading end side of the tip end side locking transport chain 45 where the transport end portions are located, and the transport start end portion are located above the transport rotator 41 located at the center in the horizontal direction of the plurality of transport rotators 41. The starting side The original clamping transport chain 46, the starting end side stock holding medium transport chain 47 in which the transport start end is located above the transport rotating body 41 located on the outermost side of the machine body, and the upper side of the starting end stock source clamping transport chain 47. A start end side tip-locking transport chain 48 and the like, and a plurality of cut rice grains from the harvesting device 13 are transported to the transport rotating body 41, the start end side stock holding and transport chain 42, 46, 47, the start end side It is transported backward in a vertical position by the tip locking transport chain 48 and the tip side locking transport chain 45, supplied to the merged stock holding and transporting chain 43, and merged, and the joined harvested cereal rice bran is joined by the combined stock source transport chain 43, The rear end side stock transport chain 44 and the tip side locking transport chain 45 transport it further in the vertical position, and the end side stock base transport chain 44 falls the tip side to the inside of the machine body. Supplied to the threshing feed chain 4a and attitude change in attitude.
[0029]
Of the plurality of pulling devices 20a and 20b arranged in the lateral direction of the machine body, the upper ends of all the pulling devices 20b other than the two pulling devices 20a, the one positioned on the outermost left side and the one positioned on the outermost right side As shown in FIG. 5, the side is configured to be connected to the pulling transmission case 61 by a connecting mechanism 70 having a connecting member 71 provided on the upper end side of the pulling device 20b.
[0030]
The coupling mechanism 70 on the upper end side of the pulling device extends from the main frame 21 so as to introduce a driving force into the upper end side of the main frame 21 that supports the pulling chain 25 and the like of the pulling device 20b and the chain drive sprocket 22. The transmission member 61 is configured to support and act on the connection member 71 that is connected to the base end side over the input case 23 and the connection pin 72 that is fixed to the distal end side of the connection member 71. The support hook 73 is fixed, and the connecting pin 72 of the connecting member 71 is engaged with and disengaged from the support hook 73, thereby raising the upper end side of the pulling device 20b to the transmission case 61. The upper end side of the pulling device 20b is pulled up and separated from the transmission case 61, and the connecting member 71 is connected by the connecting pin 72. If it is hung on the holding hook 73, the upper end side of the pulling device 20b is pulled up and connected to the transmission case 61 so as to be rotatably supported around the axis 72a of the connecting pin 72 facing the machine body. .
When the pulling device 20b is raised around the shaft core 72a of the connecting pin 72 and rotated with respect to the transmission case 61, the input case 23 is raised and separated from or connected to the output portion 61a of the transmission case 61, and Along with this, the input shaft 23 a located inside the input case 23 is raised by the connector 24 and is automatically connected to or separated from the output shaft 62 of the transmission case 61.
[0031]
Of the plurality of pulling devices 20a and 20b arranged in the lateral direction of the machine body, the lower ends of all the pulling devices 20b other than the two pulling devices 20a on the lateral outside are raised as shown in FIGS. It is configured to be connected to the front end side of the inner weed frame 58 by a connecting mechanism 80 including a connecting member 81 provided on the lower end side of the device 20b.
[0032]
The connecting mechanism 80 on the lower end side of the pulling device is fixed to the connecting member 81 fixed to the lower end side of the main frame 21 of the pulling device 20b and the inner weed frame 58 via a support pipe 82. A connection spring 85 in which a coil portion is externally fitted to the connection pin 84 between the support bracket 83, a connection pin 84 that extends across the pair of support pieces 83 a of the support bracket 83, and the support pieces 83 a of the support bracket 83. The connecting member 81 is connected to the support bracket 83 by a connecting pin 84, or the lower end side of the pulling device 20b is connected to the inner weed frame 58 by releasing this connection. , Release this connection.
[0033]
That is, the connecting pin 84 is slid against the supporting piece 83 a against the connecting spring 85 by the operation portion 84 a on one end side, and the tip end portion 84 b of the connecting pin 84 is a through pin of one connecting piece 81 a of the connecting member 81. While the pulling device 20b is lifted and swung around the shaft core 72a of the connecting pin 72 on the upper end side while being removed from the hole 86, the connecting member 81 is separated from the support bracket 83, and the lower end of the pulling device 20b. The side is separated from the inner weed frame 58. As in the case of this separation operation, while the connecting pin 84 is slid against the connecting spring 85, the pulling device 20b is swung down around the shaft core 72a, and the other connecting piece 81a of the connecting member 81 is moved. When the pair of connecting pieces 81 a are separated from both outer sides of the support bracket 83 and overlap with each other due to the notch pin hole 87, the connecting pin 84 is slid by the connecting spring 85. Then, the leading end portion 84b of the connecting pin 84 enters the through pin hole 86, the connecting pin 84 connects the connecting member 81 to the support bracket 83, and the lower end side of the pulling device 20b is connected to the inner weed frame 58.
[0034]
As a result, in all of the pulling devices 20b other than the two pulling devices 20a located on the laterally outer side, the connection to the inner weed frame 58 by the connecting mechanism 80 on the lower end side is released. In this case, the pulling transmission case 61 is supported so as to swing up and down around the shaft core 72a located on the upper end side of the pulling device 20b, and swings up and down around the shaft core 72a. Thus, as shown in FIG. 1 by a two-dot chain line and ascending and swinging as shown in FIG. 9 and opening the front part of the cutting unit 10, the management ascending open state is shown in FIG. As shown in the figure, it is switched to a lowered and closed state for work that is caused to swing downward and act on the planted culm introduced into the culm pulling path 12. In addition, when the connecting member 71 is removed from the support hook 73 or hung on the support hook 73 in the ascending open state, it can be attached to and detached from the transmission case 61.
[0035]
As shown in FIGS. 11 and 13, the lower end side of the vertical side portion 57 a of the support frame 57 that supports the plurality of inner weed frames 58 and the cutting blade support base 91 is the lower part of the square pipe frame 55. The inner weed frame 58 and the mowing device 13 are supported by the square pipe frame 55 so as to be swingable up and down around the axis X. In addition, as shown in FIG. 10, frame lock mechanisms 100 including frame lock arms 101 are provided at a plurality of locations in the longitudinal direction of the support frame 55.
[0036]
As shown in FIG. 11, the rear end side of the cutting blade support 91 that supports the cutting device 13 is rotatable about an axis Y that is lateral to the machine body with respect to the vertical side portion 57 a of the support frame 57. And the cutting device 13 is configured to be supported by the inner weed frame 58 so as to swing up and down with respect to the square pipe frame 55 around the axis X together with the inner weed frame 58, and It is configured to be supported in a state where it swings up and down with respect to the support frame 57 around the axis Y, and as shown in FIG. At two places, a reaping device locking mechanism 110 including the reaping lock arm 111 shown in FIGS. 11 and 13 is provided.
[0037]
As shown in FIGS. 11 and 14, each frame lock mechanism 100 includes a support base 102 fixed to the square pipe frame 55 and a base end side connected to the support base 102 by a connecting pin 103 so as to be freely rotatable. The frame lock arm 101 supported by the support base 102 so as to be swingable around the axis of the connecting pin 103, and the lock pin arm 104 extending backward from the support frame 57. It is prepared.
That is, when the inner weed frame 58 is swung upward and the extended end side of the lock pin arm 104 approaches the surface side of the support base 102, the frame lock arm 101 is moved around the axis of the connecting pin 103 to the lock pin arm. The lock pin 104 is engaged with the lock pin 105 fixed to the lock arm 104 by the notch 101a by swinging it in the direction of 104. Then, the frame lock mechanism 100 locks the support frame 57 so as not to swing with respect to the square pipe frame 55, thereby forming the grain raising path 12 for the inner weed frame 58 with respect to the square pipe frame 55. It will be locked so that it will be fixed in the mounting posture. At this time, the frame lock arm 101 is elastically deformed so that the position where the operation portion 101b is located is lifted from the support base 102, and the portion located near the operation portion 101b is prevented from coming off by the pin hole 101c. By engaging with the pin 106, the frame lock arm 101 can be fixed in a locked state so as not to be displaced therefrom. While the frame lock arm 101 is elastically deformed so as to be disengaged from the detachment prevention pin 106, the frame lock arm 101 is swung to the rear side of the machine body to be in the unlocked state disengaged from the lock pin arm 104. Then, the frame lock mechanism 100 releases the rocking lock of the support frame 57 with respect to the square pipe frame 55 and enters the unlocked state so as to allow the inner weed frame 58 to swing up and down around the axis X.
[0038]
As shown in FIGS. 11 and 13, each reaping device lock mechanism 110 includes an extension end side of the reaping lock arm 111 extending forward from the cutting blade support base 91 and the support frame 57. A cutting bolt is supported by attaching a lock bolt 113 over the support arm 57a extending from the outer support frame 57 and the lock member 112 attached to the outer weed frame 56 and connecting the cutting lock arm 111 to the lock member 112. By locking the base 91 so as not to swing with respect to the support frame 57, the cutting device 13 is locked to the support frame 57 in a working mounting posture, and the cutting lock arm 111 is locked. The support frame 5 of the cutting blade support 91 is released by releasing the connection of the member 112 with the lock bolt 113. To release the swing lock on, the unlocked state so as to allow vertical swing relative to the support frame 57 of the cutting device 13.
[0039]
As a result, as shown in FIG. 15, the cutting unit 10 is raised with respect to the self-propelled machine body so that a space for the inner weeding frame 58 to descend is secured between the cutting unit frame and the ground, and the support frame 57. By switching each of the frame lock mechanisms 100 located at a plurality of locations and each of the reaper device lock mechanisms 110 located on both sides of the reaping device 13 to the unlocked state, The weeding frame 58 is swung up and down around the axis X at once with the weeding tool 11 attached, and the bottom side of the cutting unit 10 is opened as shown in FIG. Then, as shown in FIG. 1, the culm pulling path 12 is formed and switched to a working and closed state for supporting the lower end side of the pulling device 20b. At this time, the weeding tool 11, the cutting device 13, and the conveyance guide 32 are also attached to the inner weeding frame 58 and swing up and down.
[0040]
That is, cleaning and checking the inside of the reaping unit 10 such as inspecting or repairing the front conveying device 30 and the rear conveying device 40 of the cutting unit 10 or cleaning the waste scraps clogged in the front conveying device 30 and the rear conveying device 40. When performing repair or the like, as shown in FIG. 15, the front conveying device of the cutting unit 10 is switched by switching the other pulling device 20b except for the two outer pulling devices 20a from the lowered closed state to the lifted open state. 30, the front of the rear transfer device 40 can be opened so that it can be easily operated. At this time, the pulling device 20b may be removed. Furthermore, by switching all of the inner weed frames 58 from the upwardly closed state to the downwardly open state, the bottom side of the front conveying device 30 and the rear conveying device 40 of the cutting unit 10 can be opened so that the work can be easily performed. Further, at this time, the weeding tool 11, the mowing device 13, and the conveyance guide 32 are also attached to the inner weeding frame 58 and lowered at a stroke, so that the front and bottom sides of the front conveyance device 30 and the rear conveyance device 40 are further operated. It can be opened easily. At this time, the left and right input portions 13a of the reaping device 13 are detached from the reaping blade driving arm, and the reaping device 13 can be lowered.
Furthermore, as shown in FIG. 12, by releasing the rocking lock of the cutting device 13 with respect to the support frame 57 by the cutting device lock mechanism 110 at the two central sides of the cutting device 13, the cutting device 13 is supported by the support frame alone. It is possible to secure a wide working space around the cutting device 13 by swinging downward with respect to 57.
[0041]
[Another embodiment]
As in the above-described embodiment, the pulling device 20b may be configured to be vertically swingable and detachable, or may be configured to be only swingable vertically.
[Brief description of the drawings]
FIG. 1 is a side view of a front portion of a combine. FIG. 2 is a front view of a cutting portion. FIG. 3 is a perspective view of a cutting portion frame. FIG. 4 is a schematic plan view of a front conveying device and a rear conveying device. FIG. 6 is a side view showing the coupling mechanism on the lower end side of the pulling device. FIG. 7 is a side view showing a state of releasing the connection on the lower end side of the pulling device. FIG. 9 is a side view showing the raised state of the upper end side of the pulling device. FIG. 10 is a plan view of the reaping device and the frame locking mechanism. FIG. 11 is a side view showing the reaping device locking mechanism on the central side of the reaping device. FIG. 12 is a side view showing the lowering state of the inner weeding frame and the mowing device. FIG. 13 is a side view showing the mowing device locking mechanism at the end of the mowing device. FIG. 14 is a plan view of the frame locking mechanism. Side view showing the inspection status of the machine 【Explanation of symbols】
4 Threshing device 11 Weeding tool 13 Harvesting device 20b Pulling device 32 Conveying guide 40 Conveying device 58 Weeding frame 72a Axle core

Claims (4)

A harvesting device structure for a combine that includes a pulling device and a harvesting device that act on the planted cereal cocoon, and a conveying device that supplies the threshing device to the threshing device,
Of the weed frames facing the fuselage that forms the culm pulling path and supports the weeding tool at the front end, it is positioned more centrally than the outer weeding frame located at the outermost side in the left-right direction the inner component grass frame and mounted for up and down swinging switched axial around located on the rear end side,
The up-and-down closed state in which the vertical height on the front end side of this inner weed frame is positioned at the height for cutting work, and the vertical height on the front end side is positioned below the front end side height of the outer weed frame reaper structures combine, characterized in that are configured to be freely lowered opened state and the attitude switching for management is. The cutting device, reaper structure combine of claim 1, wherein is supported by the inner partial grass frame in a state of swing vertically together with the inner partial grass frame. Grain稈用conveyance guide, reaper structure according to claim 1 or 2, wherein Combine is supported by the inner partial grass frame in a state of swing vertically together with the inner partial grass frame.   4. The pulling device according to any one of claims 1 to 3, wherein the pulling device is mounted so as to be swingable up and down between an upwardly open state for management and a downwardly closed state for work around an axis positioned on the upper end side. The harvester structure of the combine.

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