JP6211050B2 - Pre-harvest processing equipment for harvesting machines - Google Patents

Description

  The present invention relates to a pre-harvest processing device for a harvesting machine, in which a plurality of harvesting and locking devices for locking and transporting a harvested product in the rearward direction of the machine body by an endless rotating body are arranged in the horizontal direction of the machine body.

  Conventionally, as shown in Patent Document 1, for example, there has been a head of a harvesting machine having three units of left and right outer units and a center unit. The left and right outer units and the center unit are configured to include a pair of left and right gathering members (corresponding to an endless rotating body) that latch and convey a harvested product. Each gathering member is provided with a swingable idler arm that supports an idler pulley that is wound around the conveying start end of the gathering member, and tensioning means that tensions the gathering member by swinging the idler arm.

US Pat. No. 4,566,256

  In the pre-harvest processing apparatus for a harvesting machine described above, tension adjusting means for applying tension to the endless rotating body is provided so that the tension of the endless rotating body can be adjusted regardless of manufacturing errors or extension of the endless rotating body. Composed.

  The objective of this invention is providing the pre-harvest processing apparatus for harvesters which can adjust suitably the tension | tensile_strength state of the endless rotation body in a pair of adjacent harvested product latching conveyance apparatus.

The first invention is
A pre-harvest processing device for a harvesting machine provided with a plurality of harvested product locking and conveying devices arranged and arranged in the transverse direction of the machine body in order to lock and convey the harvested product in the machine body rearward direction by an endless rotating body,
The conveyance start end side of the endless rotating body in one of a pair of harvesting engagement / conveying apparatuses adjacent in the lateral direction of the machine body in a state where the return paths of the endless rotating body of the plurality of harvested locking / conveying apparatuses face each other. A movable-side support member that supports a start-end-side rotating wheel body that is wound, and a start-end-side rotating wheel body that is wound on the conveyance start-end side of the endless rotating body on the other side;
A stationary support member that movably supports the movable support member;
The movable side so as to move the movable side support member relative to the fixed side support member in a direction in which tension is applied to the endless rotating body by the start-end-side rotary wheel in the pair of adjacent harvested product locking and conveying devices. A tension applying mechanism provided across the support member and the fixed-side support member ,
The tension applying mechanism is located on the rear side of the starting end side rotating wheel,
The movable support member, the fixed support member, and the tension applying mechanism are located below the endless rotating body.
This second invention
A pre-harvest processing device for a harvesting machine provided with a plurality of harvested product locking and conveying devices arranged and arranged in the transverse direction of the machine body in order to lock and convey the harvested product in the machine body rearward direction by an endless rotating body,
The conveyance start end side of the endless rotating body in one of a pair of harvesting engagement / conveying apparatuses adjacent in the lateral direction of the machine body in a state where the return paths of the endless rotating body of the plurality of harvested locking / conveying apparatuses face each other. A movable-side support member that supports a start-end-side rotating wheel body that is wound, and a start-end-side rotating wheel body that is wound on the conveyance start-end side of the endless rotating body on the other side;
A stationary support member that movably supports the movable support member;
The movable side so as to move the movable side support member relative to the fixed side support member in a direction in which tension is applied to the endless rotating body by the start-end-side rotary wheel in the pair of adjacent harvested product locking and conveying devices. A tension applying mechanism provided across the support member and the fixed-side support member,
A pair of movement guide means for moving and guiding the movable side support member is provided across the movable side support member and the fixed side support member in a state of being arranged in the lateral direction of the machine body.
This third invention is the above-mentioned second invention,
One of the pair of movement guide means includes a first guide rail having a circular outer peripheral shape, and a first guide member having a circular inner peripheral shape that is fitted on the first guide rail so as to be relatively slidable. And
The other of the pair of movement guide means includes a second guide rail having a circular outer peripheral shape, and a second guide member having a rectangular inner peripheral shape that is fitted to the second guide rail so as to be relatively slidable. ing.
This 4th invention is the above 2nd or 3 invention,
The tension applying mechanism is disposed between the pair of movement guide means.

The fifth invention is the invention according to any one of the first to fourth inventions,
The endless rotating body is provided with a crop locking conveyance protrusion,
The harvest in one of the pair of adjacent crop-carrying / conveying devices between the start-end side rotating wheel in one of the pair of adjacent crop-carrying / conveying devices and the start-end side rotating wheel in the other. The start-end-side rotating wheel body of the pair of adjacent crop-carrying and conveying devices is arranged so that the return path of the product-carrying and protruding protrusions intersects the return path of the other crop-and-catch and protruding protrusions. It is.

This sixth invention is the invention according to any one of the first to fifth inventions,
The tension applying mechanism includes a spring that moves and urges the movable support member in a direction in which tension is applied to the endless rotating body by the start-end-side rotating wheel.

This seventh invention is the invention according to any one of the first to sixth inventions,
The harvested product locking and conveying device is provided with a conveying frame extending in the longitudinal direction of the machine body,
The fixed-side support member is connected across the transport frame in the pair of adjacent harvested product locking and transporting devices.

The eighth aspect of the invention relates to any one of the first to seventh aspects of the invention,
The shapes of the left and right lateral side edges of the movable support member are shapes along the harvest conveyance path of each of the endless rotating bodies in the pair of adjacent harvested product locking and conveying devices.

It is a side view which shows the whole harvesting machine. It is a top view which shows the whole harvesting machine. It is a top view which shows the pre-harvest processing apparatus. It is a vertical side view which shows a pre-harvest processing apparatus and a feeder. It is a side view which shows a transmission mechanism. It is a top view which shows a tension | tensile_strength adjustment means. FIG. 7 is a sectional view taken along the line VII-VII in FIG. 6. It is a VIII-VIII cross-sectional arrow view of FIG. It is the IX-IX cross section arrow view of FIG. It is a top view which shows a frame side support body. It is explanatory drawing which shows the effect | action of a stopper means. It is a perspective view which shows a pre-processing frame. It is a perspective view which shows the pre-processing frame in a isolation | separation state. It is a vertical rear view which shows a transmission part cover. It is a longitudinal cross-sectional view which shows the latching mechanism in the state in which a housing is in the engaging / disengaging process. It is a longitudinal cross-sectional view which shows the latching mechanism of the state which the housing completed the engagement.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing an entire harvesting machine according to an embodiment of the present invention. FIG. 2 is a plan view showing the entire harvesting machine according to the embodiment of the present invention. As shown in FIGS. 1 and 2, the harvester according to the embodiment of the present invention includes a pair of left and right front wheels 1 and 1, a pair of left and right rear wheels 2 and 2, a driving cabin 3 located at the front of the machine body, and a driving cabin. 3 is configured to drive the front wheel 1 by the engine 4 provided in the driving part A to be self-propelled and to steer the rear wheel 2 by the power steering device. The traveling machine body configured as described above, the pre-harvest processing device B connected to the front part of the machine body frame 5 of the traveling machine body, the feeder 6 provided from the rear part of the pre-harvest processing device B to above the traveling machine body, and the body frame 5 A recovery tank 7 provided at the rear part and a residue processing device D provided between the front and rear wheels of the traveling machine body are provided.

  In this harvesting machine, the traveling machine body is caused to run with the pre-harvest processing device B in a descending working posture in which the front end portion is located near the top of the ground by a vertical swinging operation around the lifting shaft core P by the pair of left and right hydraulic cylinders 8. To harvest corn. That is, among the corn plants to be planted in the field, corn, which is a part of the bunches of seeds arranged in a rod shape, is harvested by the pre-harvest processing device B, and the harvested corn is conveyed to the traveling machine body side by the feeder 6. Then, the corn discharged by the feeder 6 from the conveyance end portion is collected and stored in the collection tank 7 and the stalks left in the field after the corn is harvested by the pre-harvest processing device B are left as the residue processing device D. By crushing.

The traveling aircraft will be described.
The body frame 5 of the traveling body includes a pair of left and right main frames 5a and 5a facing the front and rear, a driving unit frame 5b connected to the front of the pair of left and right main frames 5a and 5a, and a pair of left and right main frames 5a and 5a. And a tank frame 5d connected to the rear part of the pair of left and right main frames 5a, 5a.

  The driving cabin 3 has a windshield 21 on the front surface and a door 22 that can be opened and closed on the side. As shown in FIG. 2, a main step 26 is provided outside the door 22 of the operation cabin 3. An auxiliary step 27 is provided at the outer end position of the main step 26 so as to be swingable about a swinging support shaft in a front-back orientation. A passenger ladder 24 is provided on the left side of the driving cabin 3.

  The ladder 24 is supported by the driving unit frame 5b so that the posture can be freely changed around a posture changing shaft 23 that is vertically oriented toward the machine body. The ladder 24 has a general structure in which a plurality of steps are provided stepwise at positions sandwiched between the side plates on both sides. The ladder 24 is configured to be freely changeable between a use posture projecting outward from the lateral side of the driving cabin 3, a retracted posture along the front-rear direction of the traveling machine body, and an intermediate posture that is intermediate between them.

The pre-harvest processing apparatus B will be described.
As shown in FIGS. 1, 2, and 3, the pre-harvest processing device B is a pre-processing frame F that extends from a support frame portion 5 e provided on the machine body frame 5 so as to be swingable up and down around a lifting shaft core P ( 12), three rows of harvesting conveyance paths 58 formed side by side in the front side of the pretreatment frame F, and one side of each side of each harvesting conveyance path 58. 6 harvesting product locking and conveying devices 45, and six harvesting rolls 32 arranged side by side in the lateral direction of the machine body so as to be located one on each side of each harvesting conveyance path 58. The corn is harvested from the three corn plant bodies and supplied to the feeder 6.

  That is, the pre-harvest processing apparatus B introduces the corn plants to be planted in the field into the three harvest conveyance paths 58, and a pair positioned with the harvest conveyance paths 58 sandwiched from the corn plants introduced into the respective harvest conveyance paths 58. Corn is harvested by the harvested product locking and conveying devices 45 and 45 and the pair of harvesting rolls 32 and 32, and the corn from the three harvesting and conveying paths 58 is laterally fed by the left and right spiral blades 35 </ b> A and 35 </ b> A of the transverse auger 35. 46 (see FIG. 4), and the corn that has reached the front of the feeder 6 by this lateral feed is fed by a plate-like scraping body 35B provided in the middle part of the lateral feed auger 35 so as to be integrally rotatable. The feed port 46a (see FIG. 12) provided in the lateral feed plate wall 46 is fed rearward and fed into the inlet 6a (see FIG. 4) of the feeder 6.As shown in FIGS. 4 and 12, the lateral feed plate wall 46 is located on the rear side of the lateral feed auger 35 and has a rear plate wall portion 46 b having a delivery outlet 46 a and a bottom plate wall portion located below the lateral feed auger 35. 46c.

  Each of the six harvested product locking and conveying devices 45 includes a start-end-side rotary wheel 52 positioned at the start-end portion of the harvest-transfer route 58, a terminal-side rotary wheel 53 positioned at the end of the harvest-transfer route 58, and a harvesting. A guide ring 54 located in the middle of the conveyance path 58 and an endless rotating body 55 composed of an endless locking conveyance chain wound around these rings 52, 53, 54 are provided.

  The endless rotating body 55 of each harvesting engagement and transfer device 45 is driven by the driving force from the engine 4 being transmitted to the drive case 57 that supports the terminal-side rotating wheel body 53, thereby driving the terminal-side rotating wheel body 53. Driven by rotation. That is, the endless rotating body 55 is rotationally driven by the terminal-side rotating wheel body 53 so that the part located in the harvesting conveyance path 58 moves to the rear side of the machine body and the part located in the return path 59 moves to the front side of the machine body. Is done.

  Each harvesting roll 32 is arranged below a part of the endless rotating body 55 located on the harvesting conveyance path 58. Each harvesting roll 32 extends from the drive case 57 to the front side of the machine body so as to be freely rotatable. The harvest roll 32 is rotationally driven by the driving force from the engine 4 transmitted to the drive case 57.

  As shown in FIGS. 4 and 5, the transmission mechanism G for transmitting the driving force from the engine 4 to the drive case 57 and the lateral feed auger 35 rotatably connects the base portion of the pretreatment frame F to the support frame portion 5e. A relay sprocket 100 that is rotatably supported by the connecting shaft 41 and that transmits the driving force from the engine 4 is provided, and the driving force of the relay sprocket 100 is transmitted to the preprocessing input shaft 102 that faces the machine body by the transmission chain 101, The drive sprocket 104 of the lateral feed auger 35 and the input sprocket 105 of the drive case 57 are driven by the transmission chain 103 wound around the end opposite to the side to which the transmission chain 101 is connected. It is comprised so that it may transmit. As shown in FIG. 3, the input sprocket 105 of the drive case 57 is connected to the input shaft 57 a of one of the three drive cases 57, and the input shafts 57 a of a pair of adjacent drive cases 57, 57 are connected to each other. Are connected to each other by a connecting shaft 57b so that the engine driving force can be transmitted to the six harvested product latching and conveying devices 45.

  That is, when a corn plant body is introduced into the harvesting conveyance path 58, the stalk culm is harvested by a harvesting blade body that is provided with a pair of harvesting rolls 32 that rotate on both sides of the harvesting conveyance path 58 so as to be integrally rotatable on the circumferential surface. The tuft-like corn extending from the stalk is brought into contact with the upper surface of the separation plate 51 (see FIG. 3) located in the harvesting conveyance path 58, and the corn is separated from the separation plate. It is made to separate from a stalk in a form to be shredded upward by an upward slope of 51. The pair of endless rotating bodies 55, 55 that rotate on both sides of the harvest conveyance path 58 are engaged and conveyed rearward by the harvested article engagement conveyance projection 56 and fed into the lateral feed auger 35. .

  As shown in FIG. 3, among the six crop locking and conveying devices 45, a pair of crop locking and conveying devices 45, 45 adjacent in the lateral direction of the machine body with the return paths 59 of the endless rotating body 55 facing each other. A single tension adjusting means 80 is provided between the conveying start end sides of the two, and the tension adjusting means 80 is configured to adjust the tension of the endless rotating body 55 of the pair of harvested product locking and conveying devices 45 and 45.

  FIG. 6 is a plan view showing the tension adjusting means 80. 7 is a cross-sectional view taken along the line VII-VII in FIG. 8 is a cross-sectional view taken along the line VIII-VIII in FIG. As shown in FIGS. 6, 7, and 8, the tension adjusting means 80 has a belt plate shape that rotatably supports the starting-end-side rotating wheel body 52 of the pair of harvested product locking and conveying devices 45 and 45 via a support shaft 52a. The balance support body 81, the frame side support body 84 that supports the balance support body 81 so as to be swingable via a support shaft 81a, and the frame side support body 84 are supported via a pair of left and right movement guide means 83A and 83B. And a tension applying mechanism 85 provided over the fixed-side support member 82 and the frame-side support 84. The grounding body 9 extending downward from the stationary support member 82 supports the pre-harvest processing device B by grounding it with the grounding plate 9a when the pre-harvest processing device B is removed from the traveling body. It is. In addition, the balance support body 81 and the frame side support body 84 constitute a “movable side support member” according to the present invention.

  The balance support body 81 is provided with a pair of boss portions 81b provided with a cylinder body vertically attached at a pair of locations located separately from both ends with respect to the support shaft 81a. The starting end-side rotating wheel body 52 of the object locking / conveying device 45 is rotatably supported via a support shaft 52a, and the other boss portion 81b supports the starting end-side rotating wheel body 52 of the other crop locking / conveying device 45. It is configured to be rotatably supported through a shaft 52a. The balance support 81 includes an axis 52b of the support shaft 52a as a connection point to which the starting end side rotating wheel body 52 of one harvested product locking and conveying device 45 is connected, and a starting end side of the other harvested product engaging and conveying device 45. A state where the shaft core 52b of the support shaft 52a as a connection point to which the rotating wheel body 52 is connected and the shaft core 81c of the support shaft 81a as a connection point to which the frame side support member 84 is connected are aligned in a straight line or substantially a straight line. It is deployed in.

  FIG. 10 is a plan view showing the frame side support 84. As shown in FIGS. 6, 7, 8, and 10, the frame-side support 84 includes a boss portion 84 b that is provided by attaching a cylinder body that faces up and down in the lateral direction of the vehicle body in the horizontal direction of the vehicle body. The balance support body 81 is swingably supported by the support shaft 81a at 84b. A pair of left and right reinforcing ribs 84c, 84c are provided on the lower surface side of the portion of the frame side support 84 to which the balance support 81 is connected. One end side of each reinforcing rib 84c is connected to the boss portion 84b.

  The frame-side support 84 is provided with a pair of left and right receiving portions 84d, 84d that are end portions facing forward of the body, and the pair of left and right receiving portions 84d, 84d and the pair of left and right boss portions 81b of the balance support 81 are provided. 81b is configured to constitute stopper means ST, and the stopper means ST is configured to regulate the swing angle of the balance support body 81 with respect to the frame side support body 84.

  FIG. 11 is an explanatory view showing the operation of the stopper means ST. As shown in this figure, the stopper means ST is configured such that as the balance support body 81 swings in one direction with respect to the frame side support body 84, one receiving portion 84d supports the balance of one boss portion 81b. It acts on the part projecting downward from the body 81 and restricts the swing angle of the balance support body 81 so that the one endless rotating body 55 is not detached from the starting end side rotating wheel body 52. Although not shown, the stopper means ST is configured such that as the balance support body 81 swings to the other side with respect to the frame side support body 84, the other receiving portion 84d moves from the balance support body 81 of the other boss portion 81b. It acts as a catch on the downward projecting portion, and the swing angle of the balance support body 81 is restricted so that the other endless rotating body 55 is not separated from the starting end side rotating wheel body 52.

  As shown in FIGS. 6 and 10, the shape of the frame-side support 84 on the side where the balance support 81 is located is the same as the portion 84e where the balance support 81 is pivotably connected (the portion provided with the boss portion 84b). The portion 84f including the pair of receiving portions 84d, 84d is projected to the side where the balance support body 81 is located, and the portion 84f including the receiving portion 84d of the frame side support 84 and the balance support body 81 are provided. The frame-side support body 84 and the balance support body 81 can be connected to each other in a state where there is not much polymerization in the vertical direction of the machine body.

As shown in FIGS. 6 and 10, the shape of the frame-side support body 84 in plan view is such that the lateral side edge 84 g on one end side in the lateral direction of the machine body is the endless rotating body 55 of one harvested product locking and conveying device 45. Along the harvesting conveyance path 58 as the conveyance path, the lateral side edge 84g on the other end side in the horizontal direction of the machine body is along the harvesting conveyance path 58 as the conveyance path of the endless rotating body 55 of the other harvested product locking and conveying device 45. It has a shape.
That is, the frame side support is provided between the harvesting conveyance path side portion of the endless rotating body 55 of one harvested product locking and conveying device 45 and the harvesting conveyance path side portion of the endless rotating body 55 of the other harvested product locking and conveying device 45. It is configured to be covered by the body 84.

  The fixed-side support member 82 is fixed over the conveyance frame 50 constituting one harvested product locking and conveying device 45 and the conveyance frame 50 constituting the other harvested product locking and conveying device 45, and the fixed side support member 82 is interposed via the conveyance frame 50. It is fixed to the preprocessing frame F.

  As shown in FIGS. 6 and 9, the pair of movement guide means 83A and 83B are arranged side by side in the same machine body lateral direction as the direction in which the pair of starting end side rotary wheels 52 and 52 are arranged, and move in the longitudinal direction of the machine body. The frame-side support 84 is moved and guided so that the frame-side support 84 does not generate backlash that greatly varies in the amount of movement between one end side and the other end side in the lateral direction of the frame-side support 84.

  Each of the pair of moving guide means 83A, 83B includes a guide rail 83a (first guide rail, second guide rail) whose rear end is fixed to the fixed-side support member 82, and a guide rail 83a (first guide rail, second guide rail). The first guide member 83b and the second guide member 83c are configured to be slidably fitted in the second guide rail) and fixed to the frame side support 84. Guide rails 83a (first guide rails, second guide rails) of the respective movement guide means 83A, 83B are connected to a pair of front and rear vertical pieces 82a, 82b provided on the lower surface side of the fixed support member 82. The first guide member 83b and the second guide member 83c of each moving guide means 83A, 83B are connected to a pair of front and rear vertical plate portions 84a, 84a provided on the lower surface side of the frame side support 84.

  As shown in FIG. 9, the guide rail 83a (first guide rail, second guide rail) of the pair of movement guide means 83A and 83B is constituted by a rod-like member formed so that the outer peripheral shape is circular. The first guide member 83b of one movement guide means 83A is constituted by a cylindrical body formed so that the inner peripheral shape is circular, and the second guide member 83c of the other movement guide means 83B is rectangular in inner peripheral shape. It is comprised by the cylindrical body formed so that it might become. The second guide member 83c having a rectangular inner peripheral shape includes a flat plate fixed to the lower surface side of the frame side support 84, and a sheet metal member having a U-shaped cross section fixed to the lower surface side of the frame side support 84. It is constituted by.

  Accordingly, the pair of movement guide means 83A and 83B is moved by the engagement of the guide rail 83a (second guide rail) and the circular outer periphery and the rectangular inner periphery of the second guide member 83c in the one movement guide means 83B. In either of the guide means 83A and 83B, the frame side support 84 can be smoothly moved without causing the guide rail 83a (first guide rail, second guide rail), the first guide member 83b, and the second guide member 83c to be twisted. Guide to travel.

  The tension applying mechanism 85 applies an operating force to the frame side support 84 between the pair of movement guide means 83A and 83B, and moves the frame side support 84 while preventing the movement guide means 83A and 83B from being twisted. It is arranged between the pair of movement guide means 83A and 83B so as to be operated.

  The tension applying mechanism 85 includes a front and rear operation rod 86 whose front end is fixed to the lower surface side of the frame side support 84, and a spring 87 that is externally fitted to the rear end side of the operation rod 86. It is.

  The front end portion of the operation rod 86 is fixed to the vertical plate portion 84 a on the rear side of the frame side support body 84 by a pair of lock nuts 86 a and 86 a, and the rear end side of the operation rod 86 is the front side of the fixed side support member 82. The support hole provided in the vertical piece 82a is slidably supported via a cylindrical spring support 86b, and is slidable in the support hole provided in the vertical piece 82b on the rear side of the fixed support member 82. It is supported. The spring 87 is disposed between the vertical piece 82b on the rear side of the fixed-side support member 82 and the spring receiving body 86b that is externally fitted to the operation rod 86, and is externally fitted to the operation rod 86, and the vertical piece 82b. The operating rod 86 is slidably biased toward the front side of the machine body by pressing the spring receiving body 86b using the reaction force as a reaction force member.

  Therefore, the tension applying mechanism 85 moves and urges the frame-side support body 84 via the operation rod 86 by the spring 87, thereby moving and energizing the pair of starting end side rotary wheels 52 and 52 integrally to the tension applying side. To do.

Therefore, the tension adjusting means 80 moves and urges the balance support body 81 toward the front side of the machine body by moving and energizing the frame side support body 84 by the spring 87 of the tension applying mechanism 85 to thereby pair the starting end side rotating wheel bodies 52 and 52. By moving and energizing the endless rotating body 55 toward the tension side, the tension is automatically applied to the endless rotating body 55 of the pair of harvested product locking and conveying devices 45, 45.
Further, the tension adjusting means 80, when there is a difference in tension between the endless rotating body 55 of one harvested product locking and conveying apparatus 45 and the endless rotating body 55 of the other harvested product engaging and conveying apparatus 45, the balance is adjusted by the tension difference. The starting end side rotating wheel body 52 around which the endless rotating body 55 on the high tension side is wound by swinging the support body 81 is moved to the loose side (rear side), and the starting end on which the endless rotating body 55 on the low tension side is wound. The side rotating wheel body 52 is moved to the tension side (front side) to eliminate or reduce the tension difference.

A portion through which the crop-locking protrusion 56 of the return path 59 of the one crop-locking transport device 45 passes between the other end of the pair of crop-locking transporting devices 45, 45 and the other end and the other side. Is set at a small interval so as to intersect with the part through which the harvested product engaging and protruding portion 56 of the return path 59 of the harvested product engaging and conveying device 45 passes. The portion through which the crop-locking and transporting protrusion 56 of the return path 59 in the one crop-locking and transporting device 45 passes and the crop-locking and transporting protrusion 56 of the return path 59 in the other crop-locking and transporting device 45 pass. Even if the parts intersect, the harvest-catch conveying protrusion 56 of one harvest-catch conveying device 45 and the harvest-catch conveyance protrusion 56 of the other harvest-carrying conveyance device 45 rotate on the starting end side. Since the harvested product locking and transporting protrusions 56 are arranged so as to move alternately between the rings 52, no contact between the harvested product locking and transporting projections 56 occurs, and a pair of harvested product locks. It is possible to drive the endless rotating body 55 of the transport devices 45 and 45 without any trouble.
As a result, the pair of harvested product locking and conveying devices 45, 45 facing each other with the return path 59 of the endless rotating body 55 are set at a small interval, and the pre-harvest processing device B performs a pair of harvesting. It is possible to widen the opening of the stalk introduction port 45a (see FIG. 3) formed by the start end portions of the harvesting conveyance path 58 of the endless rotating body 55 of the object locking conveyance devices 45, 45.

The preprocessing frame F will be described.
FIG. 12 is a perspective view showing the pretreatment frame F. FIG. As shown in this figure, the pretreatment frame F includes a pair of left and right vertical plate-like connecting frames 12 and 12 each having a connecting shaft 41 rotatably connected to the support frame portion 5e of the body frame 5; , A pair of upper and lower airframes 13 and 14 connected to the front ends of the pair of left and right connecting frames 12 and 12, and left and right ends connected to both lateral ends of the pair of upper and lower horizontal frames 13 and 14, respectively. A pair of vertical plate-like horizontal wall frames 15 and 15 are connected to the front end portions of the pair of left and right horizontal wall frames 15 and 15, and support frame 16 that faces the machine body and supports the conveyance frames 50 of the six crop-locking conveyance devices 45. And a pair of left and right vertical plate-like reinforcement frames 17 and 17 for reinforcing the support frame 16 by connecting the intermediate portions of the lower lateral frame 14 and the support frame 16 to each other. It is form. A pair of left and right connecting frames 12 and 12 are provided with through holes 12a for weight reduction. A pair of left and right connecting frames 12 and 12 and one horizontal wall frame 15 are provided with shaft holes 20 through which the preprocessing input shaft 102 is inserted. An auger support hole 18 for rotatably supporting the lateral feed auger 35 is provided in the pair of left and right lateral wall frames 15 and 15. One side wall frame 15 is provided with a transmission hole 19 for transmission to the drive case 57. A lateral feed plate wall 46 is connected across a pair of left and right lateral wall frames 15 and 15 and a pair of upper and lower lateral frames 13 and 14.

  A pair of left and right horizontal wall frames 15, 15 are connected to the horizontal frames 13, 14 and a divided horizontal wall frame 15 a constituting a rear horizontal wall frame portion provided with an auger support hole 18, and a front horizontal wall frame portion to which the support frame 16 is connected. The support frame 16 is detachably connected to a pair of left and right reinforcing frames 17 and 17 by a connection bracket 16a (see FIG. 13) provided on the support frame 16. The pre-processing frame F is configured to be connected to the machine frame 5 and to support the lateral feed auger 35, and to support the six crop locking and conveying devices 45. It is configured to be separable into the front frame part.

  FIG. 13 is a perspective view showing the pretreatment frame F in the separated state. As shown in this figure, the pretreatment frame F releases the connection of the two divided horizontal wall frames 15a and 15b in the pair of left and right horizontal wall frames 15 and 15 by the connection bolts, and connects the connection bracket 16a and the reinforcement frame 17 in the support frame 16. By releasing the connection by the connection bolts, the rear frame portion including the connection shaft 41 and the lateral feed auger 35 and the front frame portion including the six harvested product locking and conveying devices 45 are separated.

An openable / closable transmission cover 90 (see FIG. 1) covering the lateral outer side of the transmission including the drive sprocket 104 of the lateral feed auger 35 and the input sprocket 105 of the drive case 57 will be described.
FIG. 14 is a longitudinal rear view showing the transmission portion cover 90. As shown in this figure, the transmission portion cover 90 is divided on the rear side in the horizontal wall frame 15 by a lock mechanism 91 provided on the upper portion of the transmission portion cover 90 and a locking mechanism 95 provided on the lower portion of the transmission portion cover 90. It is configured to be detachably attached to the horizontal wall frame 15a.

  The locking mechanism 95 is configured such that a housing 96 fixed to a support portion 90a provided on the inner surface side of the transmission portion cover 90 and a hook portion 97 located at the tip of the housing 96 are engaged and disengaged. A locking portion 98 provided on the frame 15a is provided.

  The shape of the recessed portion 97a provided in the hook portion 97 so as to be engaged with and disengaged from the engaging portion 98 of the divided horizontal wall frame 15a is made to be a thin shape narrowing between the entrance and the back, and the shape behind the recessed portion 97a in the hook portion 97 is engaged. A stepped portion 97b and a lock stepped portion 97c are formed in a staircase shape that is lined up in steps.

  FIG. 15 is a longitudinal sectional view showing the locking mechanism 95 in a state where the housing 96 is in the engagement / disengagement process. As shown in this figure, the hook portion 97 is engaged at the engagement / disengagement step portion 97b by inclining the housing 96 so as to be positioned at a lower position toward the base end side with respect to the divided horizontal wall frame 15a. The casing 96 can be engaged with and disengaged from the locking portion 98 through the through hole 98a of the stopping portion 98.

  FIG. 16 is a longitudinal sectional view showing the locking mechanism 95 in a state in which the housing 96 is engaged. As shown in this figure, in a state where the housing 96 is engaged with the locking portion 98, the hook portion 97 sandwiches the divided horizontal wall frame 15a at the narrow portion between the entrance and back of the recessed portion 97a, The backlash of the transmission portion cover 90 in the lateral direction of the machine body can be suppressed, the lock step portion 97c of the hook portion 97 enters the through hole 98a of the locking portion 98, and the distance between the lock step portion 97c and the bottom of the recess portion 97a is large. And since there is not much difference between the size of the through hole 98a, it is possible to suppress the backlash of the transmission cover 90 in the vertical direction of the machine body.

  The lock mechanism 91 includes a holder 92 formed of a rod projecting laterally outward from the divided horizontal wall frame 15 a and a lock mechanism main body 93 provided on the transmission portion cover 90. The lock mechanism main body 93 has a base portion 93a fixed to the transmission portion cover 90 and a hook body that is formed in a hook shape that engages with and disengages from the extended end portion of the holder 92 and is swingably supported by the base portion 93a. 93b and a handle 93c provided on the base portion 93a so as to swing from the outer surface side of the transmission portion cover 90. The handle 93c is interlocked with the latching body 93b so that the latching body 93b is pivoted to be engaged with and disengaged from the holder 92 by being pivoted. The handle 93c can be used as a handle for attaching / detaching the transmission portion cover 90 to / from the divided horizontal wall frame 15a.

The feeder 6 will be described.
As shown in FIG. 4, the feeder 6 winds a feed chain 72 around a driving sprocket 76 on the front end side and a driven sprocket (not shown) on the rear end side, and a plurality of feed chains 72 are wound around the feed chain 72 at set intervals. A transport plate 73 is provided, and these are built in a feeder case 70.

  As shown in FIG. 1, the feeder 6 includes a blower E provided on the lower side of the conveyance end portion of the feeder case 70. The blower E includes a plurality of blower blades (not shown) that are rotatably provided inside the fan case 78, and the air outside the fan case 78 is removed from the side surfaces of the fan case 78 by the rotation of the blower blades. The sorting air is generated by suction from the air, and the generated sorting air is sent out from the air outlet of the fan case 78. The sorting air sent from the blower E exits the discharge port 6b of the feeder 6 from the inside to the outside, and a part of the leaves or a part of the slime discharged from the discharge port 6b of the feeder 6 mixed with corn. The corn is blown away by wind pressure and sorted from corn.

  A guide duct 60 extends above the collection tank 7 from the conveyance end portion of the feeder 6. The guide duct 60 is formed in a tubular shape having a longitudinal cross-sectional shape that opens downward, and the dust discharged from the discharge port 6b of the feeder 6 flows to the extending end together with the sorting air from the blower E. It is guided and discharged from the laterally outward opening 61 located at the extending end to the laterally outer side of the aircraft.

The collection tank 7 will be described.
As shown in FIG. 1, the collection tank 7 includes a machine body upward opening 7 a located behind the discharge port 6 b of the feeder 6, and collects corn discharged from the feeder 6 and falling into the machine body upward opening 7 a. Store. The recovery tank 7 is supported by a support structure 10 projecting upward from the machine body frame 5 so as to be rotatable around a dump shaft core Q facing the machine body sideways. The recovery tank 7 is rotated around the dump axis Q by the dump cylinders 10a located on both sides, and the storage posture in which the machine body upward opening 7a is located below the guide duct 60 and the machine body upward opening 7a are provided. It can be switched to a discharge posture that faces down toward the rear of the aircraft. When the recovery tank 7 is switched between a storage posture and a discharge posture, the guide duct 60 is moved upward and swinging with respect to the feeder 6 in conjunction with the rotation of the recovery tank 7. On the other hand, it is configured to retreat upward.

[Another Example]
(1) In the above-described embodiment, an example in which the balance support 81 is provided in the tension adjusting means 80 has been described. However, the balance support 81 is not provided in the tension adjusting means 80, and the balance support 81, the tension adjusting means 80, May be configured to operate on the endless rotating body 55 separately.

(2) In the above-described embodiment, an example in which the tension adjusting means 80 is configured to automatically apply tension by the spring 87 has been described. However, the tension is applied by an artificially operable screw mechanism or the like. It may be carried out by adopting what is configured to be performed automatically.

(3) In the above-described embodiment, the harvested product engaging and conveying protrusions 56 of the endless rotating bodies 55 of the pair of adjacent harvested product engaging and conveying devices 45 and 45 intersect with each other between the starting end side rotary wheels 52. Although the example which comprised was shown, the space | interval of the starting end side rotation ring bodies 52 of a pair of adjacent crop locking conveyance apparatuses 45 and 45 is set wide, and endless rotation of a pair of crop locking conveyance apparatuses 45 and 45 is carried out. It may be configured and implemented so that the harvested product locking and conveying protrusion 56 of the moving body 55 does not intersect between the starting end side rotating wheel bodies 52.

(4) In the above-described embodiment, one movement guide means 83A is provided with the first guide member 83b whose inner peripheral shape is circular, and the other movement guide means 83B is the second guide member 83c whose inner peripheral shape is rectangular. However, the guide member having a circular inner peripheral shape may be provided in any of the pair of movement guide means 83A and 83B.

(5) Although the example provided with the residue processing apparatus D was shown in the above-mentioned Example, even if it implements by providing in the pre-harvest processing apparatus B the cutting device which cut | disconnects the planted state stem stalk at the plant origin Good.

(6) Although the example provided with the collection tank 7 was shown in the above-mentioned Example, you may implement by providing the threshing apparatus or the peeling apparatus which processes the corn from the feeder 6. FIG.

(7) In the above-described embodiment, an example is shown in which the six crop catching and transporting devices 45 are provided and the three-row cutting pre-harvest processing device B is configured. The apparatus 45 may be provided to implement the pre-harvest processing apparatus B.

(8) In the above-described embodiment, an example in which the front wheel 1 and the rear wheel 2 are provided as traveling devices has been described. However, the crawler traveling device may be provided as a traveling device.

  The present invention can be applied to a harvester equipped with a pre-harvest treatment device for harvesting various crops such as rice and wheat instead of a pre-harvest treatment device for harvesting corn.

45 Harvested product conveying device 50 Conveying frame 52 Start-end-side rotating wheel 55 Endless rotating body 56 Harvested product conveying and projecting portion 58 Harvested conveying route 59 Return route 81 Balance support 82 Fixed-side support members 83A and 83B Movement guide means 83a Guide rail (first guide rail, second guide rail)
83b First guide member 83c Second guide member 84 Frame side support 85 Tension applying mechanism 84g Lateral edge 87 Spring B Pre-harvest processing device

Claims (8)

A pre-harvest processing device for a harvesting machine provided with a plurality of harvested product locking and conveying devices arranged and arranged in the transverse direction of the machine body in order to lock and convey the harvested product in the machine body rearward direction by an endless rotating body,
The conveyance start end side of the endless rotating body in one of a pair of harvesting engagement / conveying apparatuses adjacent in the lateral direction of the machine body in a state where the return paths of the endless rotating body of the plurality of harvested locking / conveying apparatuses face each other. A movable-side support member that supports a start-end-side rotating wheel body that is wound, and a start-end-side rotating wheel body that is wound on the conveyance start-end side of the endless rotating body on the other side;
A stationary support member that movably supports the movable support member;
The movable side so as to move the movable side support member relative to the fixed side support member in a direction in which tension is applied to the endless rotating body by the start-end-side rotary wheel in the pair of adjacent harvested product locking and conveying devices. A tension applying mechanism provided across the support member and the fixed-side support member ,
The tension applying mechanism is located on the rear side of the starting end side rotating wheel,
The pre-harvest processing device for a harvesting machine, wherein the movable support member, the fixed support member, and the tension applying mechanism are located below the endless rotating body . A pre-harvest processing device for a harvesting machine provided with a plurality of harvested product locking and conveying devices arranged and arranged in the transverse direction of the machine body in order to lock and convey the harvested product in the machine body rearward direction by an endless rotating body,
The conveyance start end side of the endless rotating body in one of a pair of harvesting engagement / conveying apparatuses adjacent in the lateral direction of the machine body in a state where the return paths of the endless rotating body of the plurality of harvested locking / conveying apparatuses face each other. A movable-side support member that supports a start-end-side rotating wheel body that is wound, and a start-end-side rotating wheel body that is wound on the conveyance start-end side of the endless rotating body on the other side;
A stationary support member that movably supports the movable support member;
The movable side so as to move the movable side support member relative to the fixed side support member in a direction in which tension is applied to the endless rotating body by the start-end-side rotary wheel in the pair of adjacent harvested product locking and conveying devices. A tension applying mechanism provided across the support member and the fixed-side support member,
A pair of movement guide means for moving guiding the movable support member, in a state of being aligned in the machine body transverse direction, pre-harvest processing apparatus for harvesting machines provided over said stationary support member and the movable-side support member . One of the pair of movement guide means includes a first guide rail having a circular outer peripheral shape, and a first guide member having a circular inner peripheral shape that is fitted on the first guide rail so as to be relatively slidable. And
The other of the pair of movement guide means includes a second guide rail having a circular outer peripheral shape, and a second guide member having a rectangular inner peripheral shape that is fitted to the second guide rail so as to be relatively slidable. The pre-harvest processing apparatus for a harvesting machine according to claim 2 . The pre-harvest processing device for a harvesting machine according to claim 2 or 3 , wherein the tension applying mechanism is disposed between the pair of movement guide means. The endless rotating body is provided with a crop locking conveyance protrusion,
The harvest in one of the pair of adjacent crop-carrying / conveying devices between the start-end side rotating wheel in one of the pair of adjacent crop-carrying / conveying devices and the start-end side rotating wheel in the other. The start-end-side rotating wheel body of the pair of adjacent crop-carrying and conveying devices is arranged so that the return path of the product-carrying and protruding protrusions intersects the return path of the other crop-and-catch and protruding protrusions. The pre-harvest processing device for a harvesting machine according to any one of claims 1 to 4 . The harvest according to any one of claims 1 to 5, wherein the tension applying mechanism includes a spring that moves and urges the movable support member in a direction in which tension is applied to the endless rotating body by the starting-end-side rotating wheel. Machine for pre-harvest processing. The harvested product locking and conveying device is provided with a conveying frame extending in the longitudinal direction of the machine body,
The pre-harvest processing device for a harvesting machine according to any one of claims 1 to 6, wherein the fixed-side support member is connected across the transport frame in the pair of adjacent harvested product locking and transporting devices.   8. The shape of the left and right lateral side edges of the movable side support member is a shape along the harvest conveyance path of each endless rotating body in the pair of adjacent harvested product locking and conveying devices. The pre-harvest processing apparatus for a harvesting machine according to one item.

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