JP2013126428A - Reaping and conveying device of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the operability of the operation lever for a grass divider, and to form the operation lever compactly in the narrow scope of a transfer operation range.SOLUTION: A grass divider (10) is composed to be able to switch a grass dividing action posture position and a storage posture position by the operation lever (12), the left side end of a supporting frame (17) is connected to the back of a support arm (31) extended from the lower and upper direction intermediate part of a drive transmission column support (30) for the drive transmission of a grain culm raising device (4) to the backward, the supporting frame (17) is disposed in a state to step over the upper side of a grain culm transportation passage (9) in the right and left direction, a culm body detection sensor (15) for threshing depth control is suspended from the upper side of the grain culm transportation passage (9), and a lever supporting member (18) that has a supporting shaft (11) is disposed to project forward to the site that becomes driver's seat (8) side to the installation position of the culm body detection sensor (15) at a position coming near to a driver's seat (8) side from the right and left direction central part in the supporting frame (17).

Description

  The present invention relates to a harvesting and conveying apparatus for a combine.

Conventionally, a number of known techniques relating to a combine narrow guide have been disclosed in a public gazette. For example, Japanese Patent Laid-Open No. 2007-174955 is an example.
According to the specification and drawings, the publicly known technology disclosed in the published patent publication (see Patent Document 1) indicates that “the combine 1 includes the pre-processing unit 3 provided in front of the traveling machine body 2 and the pre-processing. It is arranged on the traveling machine body 2 at one side part in the vehicle width direction of the conveying path of the grain straw and the conveying means 12 that conveys the grain harvested by the part 3 to the threshing part 4 arranged in the traveling machine body 2. A narrow guide 7 provided on the other side in the vehicle width direction of the driving operation unit 6 and the pre-processing unit 3 and capable of switching between a weeding action posture position and a storage posture position, and a means for linking the narrow guide 7 An operation lever 10 for switching the posture position via the guide lever 13 and a guide member 13 for guiding the ear side of the cereal to be conveyed along the conveyance path, the guide member 13 being connected to the conveyance path and the driving operation unit 6. Provided between the guide member 13 and the driving operation unit 6. The technical configuration is disclosed, and it is described that the narrow guide can be easily switched, and that the cereal meal being conveyed is prevented from interfering with the operation lever and the linkage means to cause a conveyance failure. Yes. In addition, the code | symbol described the number described in this gazette.

JP 2007-174955 A

  Conventionally, an operation lever for switching a narrow guide between a weeding action posture position and a retracted posture position has a lateral axis on the side of the driver's seat as described in Patent Document 1 described in the previous section. It was supported by a suspended support shaft so that it could be freely rotated, and the lever grip portion protruded upward. Therefore, the conventional device has a problem that the operation direction of the operation lever is the front-rear direction along the traveling direction of the combine, the movement operation range is widened, a large space is required, and a compact configuration cannot be achieved. For this reason, for example, as in the invention of the present application, there is a problem that the apparatus cannot be installed in a narrow place such as being installed inside the dust cover that opens and closes.

  In addition, in the conventional device, the operation direction of the operation lever is the front-rear direction, whereas the movement direction of the narrow guide that moves in conjunction with the operation is the horizontal direction, so the operation direction and the movement direction do not match. There is a difficulty in operability.

In order to solve the above-mentioned problems, the present invention takes the following technical means.
That is, the invention according to claim 1 is characterized in that a front part of the weeding guide (10) is attached to the left part of the cutting and conveying device (7) opposite to the side having the driver's seat (8), An operating lever (12) is provided at a position above the cereal conveyance path (9) from the device (7) to the threshing device (2). The left and right direction provided in the lower part of the cutting and conveying device (7) is configured such that the weeding guide (10) can be switched between the weeding action position and the retracted position by rotating the operation lever (12). From the left side of the power transmission case (23), the cedar pulling device (4) a power transmission post (30) for transmission is started up, and the support arm is extended rearward from the vertical middle part of the power transmission post (30) (31) The left end of the support frame (17) is connected to the rear part, A holding frame (17) is attached in a state straddling the upper side of the grain culm transport passage (9) in the left-right direction, and a slimming detection sensor (15) for controlling the handling depth is disposed above the grain culm transport passage (9). From the center of the support frame (17) closer to the driver's seat (8) side than the center of the left-right direction, and detecting the slimming A combine harvesting and conveying device provided with a lever support portion (18) having the support shaft (11) protruding forward at a position on the driver's seat (8) side with respect to the installation position of the sensor (15). .

  According to a second aspect of the present invention, the lever support portion (18) is provided so as to protrude forward from the support frame (17), and the slimming detection sensor (15) is installed on the rear side of the support frame (17). A combine harvesting and conveying apparatus according to claim 1.

  According to a third aspect of the present invention, the lever support portion (18) is bent in a crank shape in a side view, the support shaft (11) is provided at the rear portion of the lever support portion (18), and the lever support portion ( 18) A vertical second support shaft (33) is provided at the front portion of the lever support portion (18) which is lower than the rear portion, and the position of the slimming detection sensor (15) is provided on the second support shaft (33). The operating lever (12) is disposed on the upper side of the supporting frame (17), and the operating depth adjusting lever (16) is supported on the supporting frame (17). The combine harvesting and conveying apparatus according to claim 2, wherein the combine harvesting and conveying apparatus is configured to be disposed on the lower side.

  According to a fourth aspect of the present invention, the operation lever (12) is disposed inside a dustproof cover (13) that freely opens and closes the upper part of the cereal conveyance passage (9), and the weed guide (10) 4. The combine harvesting and conveying apparatus according to claim 3, wherein the movement range of the operation lever (12) accompanying the switching operation is set to a range that does not hinder the opening / closing mechanism (14) of the dust cover (13).

  According to the first and second aspects of the invention, when the weeding guide (10) is operated from the driver's seat (8), the operating direction of the operating lever (12) is a planar push-pull operation, thereby improving operability. The operating range of the operating lever (12) can be made compact in a narrow range.

  Further, a lever support portion (18) is provided to protrude forward on the support frame (17) provided so as to straddle the upper part of the cereal conveyance path (9), and the operation lever (12) is supported thereby. it can.

  According to the third aspect of the present invention, in addition to the above-described effects, the handle depth adjusting lever (16) and the operation lever (12) are supported by the lever support portion (18). It becomes compact and the cost can be reduced.

Further, the vertical distance between the operating lever (12) and the handle depth adjusting lever (16) is widened, so that erroneous operation can be prevented.
According to the invention described in claim 4, in addition to the effect of the invention described in claim 3, the operation lever (12) can be provided in a state of being housed inside the dust cover (13), and this operation can be performed. Since the movement range during the operation of the lever (12) is also in a range that does not interfere with the opening / closing mechanism (14) of the dust cover (13), the opening / closing of the dust cover (13) can be performed by the operating position of the operation lever (12). It can be done regardless of the work efficiency.

Plan view showing the action of the lever with part of the dust cover broken Side view with part of the cutting and conveying device broken Action plan view of narrow guide Plan view showing the operation of the depth adjustment lever Combine side view Side view of the second embodiment of the operating lever and the handle depth adjusting lever Side view of the third embodiment of the operating lever and the handle depth adjusting lever Top view of the dust cover Side view showing the function of the dust cover

Embodiments of the present invention will be specifically described below with reference to the drawings.
First, as shown in FIG. 5, the combine is mounted on the vehicle body 1 equipped with a pair of left and right crawlers 20, 20 with the cereal supply port 21 positioned on the front side and the threshing device 2 mounted on the front side. The apparatus 7 is configured to be supported so as to freely move up and down.

  And the machine frame structure which supports the cutting and conveying apparatus 7 is a cutting frame in which a cutting suspension is installed on the front side of the threshing device 2 and on the front of the vehicle body 1, and the base is supported pivotally on the cutting suspension. 22 is extended obliquely downward at the front, and a horizontal transmission case 23 is connected to the front end thereof to constitute a cutting support frame having a T-type transmission mechanism in plan view. Then, as described above, the cutting and transporting device 7 is raised to the cutting support frame composed of the cutting frame 22 and the transmission case 23 with the weed culm 3 at a low position in the front and obliquely upward behind it. The upper and lower parts that convey the grain head and the head side toward the threshing apparatus 2 from above the cereal pulling apparatus 4 with the slag lag, the wide and reciprocating type mowing apparatus 5 at the position of the lower stock The two stages of cereal conveyor devices 6 are arranged and attached, respectively, so that transmission is possible.

  As shown in FIGS. 1 and 5, the driver's seat 8 is arranged close to the right front part on the vehicle body 1, and the culm conveying device 6 between the harvesting conveying device 7 and the threshing device 2. It is set as the structure arrange | positioned in the right side position of the cereal conveyance path 9 comprised from these. In FIG. 1, a main transmission lever 25, a mowing clutch lever 26, and a threshing clutch lever 27 are provided on an operation frame 24 provided on the left side of the driver's seat 8.

  Next, as shown in FIGS. 2, 3, and 5, the narrow guide (weeding guide) 10 is attached to the outside of the vehicle body 1 on the side opposite to the driver's seat 8, but the front portion is cut away. An operation swing rod 29 that pivots inward and outward and extends rearward to the weed support rod 28 arranged on the left outer side of the transport device 7 and supports the intermediate portion on the vehicle body 1 side. It is configured to be supported in connection with the pivot. The narrow guide 10 can be switched between a weeding posture position projecting outward from the vehicle body 1 and a retracted posture position approaching the outside of the vehicle body 1 by an operation of an operation lever 12 described later. It has become.

  Next, as shown in the drawing, the operation lever 12 is provided above the grain conveying passage 9 and on the left side of the driver's seat 8. It is configured such that it can be pushed in the horizontal direction in the plane and pulled.

  Specifically, first, the support frame 17 extends upward in a state where it is raised from the side portion of the transmission case 23 that is laterally connected to the front portion of the cutting frame 22 as shown in FIGS. 1 and 2. In the case of the embodiment, one end is connected to a support arm 31 extending rearward from the middle portion of the transmission post 30 and the other end is supported. The part is supported by a machine frame on the operation frame 24 side, and the upper position of the cereal conveyance path 9 is set in a state straddling in the left-right direction.

  The lever support portion 18 is provided so as to protrude toward the front side at a position closer to the driver's seat 8 side than the left and right intermediate portions of the support frame 17 attached as described above. The operation lever 12 is mounted on a vertical support shaft 11 provided on the base side of the lever support portion 18 so as to freely rotate, and the handle depth adjusting lever 16 is slightly smaller than the support shaft 11. A vertical axis (second support shaft) 33 that is mounted at a position close to the tip side is provided to freely support the operation, and both levers 12 and 16 are arranged vertically to push the plane horizontally. In this configuration, pulling operation can be performed. In this case, the lever support portion 18 according to the embodiment is formed in a crank shape up and down in a side view (see FIG. 2), the support shaft 11 is mounted on a high portion of the upper rear portion, and the lower front portion is mounted. The vertical axis 33 is mounted on a lower part, and the operating lever 12 and the handle depth adjusting lever 16 are mounted on both the shafts 11 and 33 with a space therebetween. Therefore, as shown in the drawing, the operation lever 12 and the handle depth adjusting lever 16 are arranged such that the lateral support frame 17 is positioned in the middle, the control lever 12 is positioned above, and the handle depth adjusting lever 16 is positioned below. The arrangement is positioned and the distance between the levers is wide.

  As described above, the operation lever 12 and the handle depth adjustment lever 16 are provided with a gap between the levers as wide as possible to prevent erroneous operation. As shown in FIG. 1, the operation lever 12 is configured by connecting an operation lot 34 connected to the tip portion to a narrow guide operation unit 32.

  The narrow guide operation unit 32 is detachably attached to and supported by the intermediate portion of the lateral support frame 17 described above. First, the intermediate portion is pivoted so that the operation wire 35, 35 is connected to the operation lot 34 of the operation lever 12, and the two operation wires 35, 35 are alternately pushed and pulled to position the narrow guide 10 as described later. The switching operation can be performed. The two operation wires 35, 35 are routed laterally with the outer end supported by the support provided at the end of the narrow guide operation unit 32. In this case, the operation lot 34 is configured to be relatively easily detachable from the base operation lever 12 and the upper interlocking rod 36 of the narrow guide operation unit 32 on the distal end side, and in addition, the narrow guide operation unit 32. In addition, since the support frame 17 is detachably attached to the support frame 17, there is an advantage that maintenance can be easily performed.

  Further, the upper interlocking rod 36 is simply configured to be attached and detached so that the maintenance of the two operation wires 35 and 35 can be easily performed. And since the said narrow guide operation unit 32 has left | separated upwards from the grain ridge conveyance path | route 9, there is no possibility of inhibiting the tip conveyance of conveyance.

  Next, although the detailed wiring diagram is omitted, the two operation wires 35, 35 are omitted from the narrow guide operation unit 32 as shown in FIG. 1 (the structure of the cover will be described later). After extending the inside to the left side, it is routed forward through the dust cover 13 as it is, and at the position reaching the transmission column 30, it extends downward along the column 30 and is connected to the lower interlocking rod 37. Yes. Then, as shown in FIG. 3, the lower interlocking rod 37 connects the ends of the two operation wires 35 and 35 described above to both ends, respectively, via an interlocking operation arm 38 that rotates integrally. It is configured to be connected to the operation swing rod 29.

  With the above configuration, the narrow guide 10 can be switched by operating the operating lever 12 to the position of the solid line shown in FIG. 1 so that the narrow guide 10 is positioned just outside the vehicle body 1 as shown by the solid line in FIG. When the operation lever 12 is operated to the position of the left virtual line on the plane as shown in FIG. 1, the narrow guide 10 is also shown in FIG. Then, the position is switched to the position of the virtual line and moves to the weed action posture position.

  In this manner, the narrow guide 10 moves in the horizontal direction when the operation lever 12 on the side of the driver's seat 8 is operated in the horizontal direction in the horizontal plane, and moves in the horizontal direction to separate the weeds. It is possible to switch between the action posture position and the retracted posture position. As a feature of the embodiment, when the operation lever 12 is operated from the driver's seat 8 to the left side (far side), the narrow guide 10 is also moved to the left side (far side) to switch to the weed action posture position, and the retracted posture position. Even when operating, the operating direction of the operating lever 12 and the operating direction of the narrow guide 10 can be switched so that the operator can easily see and confirm the action and the operability is greatly improved. is there.

  Further, as shown in the drawing, the handling depth adjusting lever 16 is a slimming detection sensor for controlling the handling depth provided by hanging down from the top of the cereal conveyance passage 9 to a position for detecting the slimming of the conveyance cocoon. It is set as the structure which adjusts the position of 15 to the slimming direction of a conveyance kernel. Then, as shown in FIG. 4, the slimming detection sensor 15 moves to the tip side when the handling depth adjusting lever 16 is operated to the position of the solid line, and the handling depth control action is adjusted to the deep handling side. Conversely, when the handle depth adjusting lever 16 is adjusted in the direction of the imaginary line, it is adjusted to the stockholder side and controlled to the shallow handle side.

  As is widely known, adjustment in the depth control is generally adjusted to the deep handling side for harvesting of short culverts, and conversely for shallow culverts, on the shallow handling side. It has been adjusted to.

  As described above, the handle depth adjusting lever 16 is freely operated by the longitudinal axis 33 that is mounted on the lever support portion 18 that supports the operation lever 12 at a position slightly closer to the distal end side than the support shaft 11. The two levers 12 and 6 are arranged vertically on one lever support portion 18 so that the pulling operation can be performed by pushing the plane horizontally. As described above, the operation lever 12 and the handle depth adjusting lever 16 are supported by a single lever support portion 18 provided on the support frame 17 to simplify the configuration.

  In the embodiment shown in FIGS. 1 and 2, the operation lever 12 and the handle depth adjusting lever 16 are formed longer than the handle depth adjusting lever 16. However, with this configuration, there are advantages that both levers are separated and there is no mistake in operation, and that the operation load during operation of the narrow guide 10 is relatively small.

  As shown in FIGS. 6 and 7, both levers 12 and 16 have one of them lengthened in order to prevent misidentification and confusion during operation to eliminate erroneous operation and to reduce operational load. Changing the shape, such as forming the other short or the opposite, or bending the upper lever (operating lever 12) upward and the lower lever 16 downward You can choose freely.

Next, the dustproof cover 13 will be described.
First, the dust-proof cover 13 is a cover that covers the upper part of the cereal conveyance path 9 of the harvesting and conveying apparatus 7 whose right outer side is covered with a side cover, which has been used conventionally and is fixed to the front side. A fixed cover 40 is provided, and a rear opening / closing cover 41 that is disposed on the upper side and can be freely opened and closed in the front-rear direction is provided. The front fixed cover 40 is fixed to a mounting frame 42 whose front part is fixed to the transmission column 30 and extended rearward, and covers the upper part of the cereal conveying path 9 to the full width. The rear opening / closing cover 41 covers the upper side of the front fixing cover 40 and moves in the front-rear direction so as to cover the rear position above the cereal conveyance passage 9 so as to be freely opened and closed.

  As shown in FIGS. 8 and 9, the opening / closing mechanism 14 includes an upper portion of an opening / closing arm 44 whose lower portion is pivotally attached to a support member 43 provided at the rear end portion of the mounting frame 42 so that the lower portion can swing back and forth. Are connected to each other, and support rollers 45 are pivoted on the left and right sides of the front part so as to swing back and forth while sliding back and forth. In the case of the embodiment, the rear opening / closing cover 41 is configured to be opened and closed by being manually moved by the operator, and is closed and closed rearward during the mowing and threshing operation, and is generated in the culm conveying passage 9. It prevents dust and dust from scattering outside the machine.

  As shown in the drawing, the operating lever 12 is provided in a state of being housed from the inside of the front fixed cover 40 of the dust cover 13 to the inside of the rear opening / closing cover 41. The opening / closing arm 44 is configured so that it can be operated within a range that does not hinder the operation.

  As described above, the operation lever 12 opens and closes which constitutes the opening / closing mechanism 14 even at the position where the narrow guide 10 is switched to the retracted position (the position closest to the right side) as shown by the solid line in FIG. Since it is located on the left side of the swing locus of the arm 44, the dustproof cover 13 can be opened and closed at ease without leaving the operation locus of the open / close arm 44 and without hindering the open / close operation. And in the case of an Example, since the operation lever 12 exists in the height which cannot be reached even if it is above the cereal conveyance path 9 and is a long cocoon, the conveyance effect | action of corn cereal is obstructed. In addition, the above-mentioned handling depth adjusting lever 16 is also provided at a height that does not reach the cereal.

2 Threshing device 4 Grain raising device 7 Cutting and conveying device 8 Driver's seat 9 Grain conveying route 10 Narrow guide (weeding guide)
DESCRIPTION OF SYMBOLS 11 Support shaft 12 Operation lever 13 Dust-proof cover 14 Opening / closing mechanism 15 Slimming detection sensor 16 Handling depth adjustment lever 17 Support frame 18 Lever support part 23 Transmission case 30 Transmission post 31 Support arm 33 Vertical axis (second support shaft)

Claims (4)

  The front part of the weeding guide (10) is attached to the left part of the cutting and conveying device (7) opposite to the side having the driver's seat (8), and the threshing device (2) is connected to the cutting and conveying device (7). An operation lever (12) pivotally mounted by a vertical support shaft (11) is provided at a position above the grain haul conveyance passage (9) leading to the rotation of the operation lever (12). The weeding guide (10) can be switched between a weeding action posture position and a retracted posture position by operation, and from the left side of the left-right direction transmission case (23) provided at the lower part of the cutting and conveying device (7). , The grain raising device (4) a power transmission post (30) is started up, and a support frame (17) is mounted on the rear part of the support arm (31) extending rearward from the vertical middle part of the transmission post (30). ) And connect the left end of the support frame (17) Attached with the upper side of the passage (9) straddling in the left-right direction, a slimming detection sensor (15) for controlling the handling depth is detected from the upper side of the cereal conveyance path (9). And a position that is closer to the driver's seat (8) side than the central portion in the left-right direction of the support frame (17), and is positioned relative to the installation position of the slimming detection sensor (15). A combine harvesting and conveying device in which a lever support portion (18) having the support shaft (11) is projected forward at a portion on the driver seat (8) side.   The harvesting of the combine according to claim 1, wherein the lever support portion (18) is provided so as to protrude forward from the support frame (17), and the slimming detection sensor (15) is installed on the rear side of the support frame (17). Conveying device.   The lever support portion (18) is bent in a crank shape in a side view, the support shaft (11) is provided at the rear portion of the lever support portion (18), and the lever is lower than the rear portion of the lever support portion (18). A vertical support shaft (33) is provided at the front of the support portion (18), and a handle depth adjusting lever for adjusting the position of the slimming detection sensor (15) on the second support shaft (33). (16), the operation lever (12) is disposed above the support frame (17), and the handle depth adjustment lever (16) is disposed below the support frame (17). The combine harvesting and conveying apparatus according to claim 2.   The operation lever (12) is disposed inside a dust-proof cover (13) that freely opens and closes above the cereal conveyance path (9), and the operation lever (12) associated with the switching operation of the weed guide (10). 4. The combine harvesting and conveying apparatus according to claim 3, wherein the movement range is set to a range that does not interfere with the opening / closing mechanism (14) of the dust cover (13).

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