JPH09322626A - Reaping apparatus fitting structure for agricultural machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the dropout of a connecting bolt by always fitting the connecting bolt from above irrespective of the vertical position of a hair clippers type reaping apparatus. SOLUTION: A cutter bar 52 and a reaping blade fitting part 11C of a hair clippers type reaping apparatus 5 are equipped with a pair of a right and a left bolt holes 65b and 66b, respectively. Among the pair of the right and the left bolt holes formed in the cutter bar, one hole is made into a screw hole and the other is formed into a clearance hole. The bolt holes of the reaping blade fitting part are made in the same manner. A bolt 64 is inserted from above into the clearance hole formed either the cutter bar or the reaping blade fitting part and the screw hole formed on the other so that the hair clippers type reaping apparatus can be fixed to the top or the bottom of the reaping blade fitting part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agricultural machine such as a combine and a binder, and more particularly, to a configuration in which the mounting position of a clipper type cutting device can be changed up and down with respect to the cutting blade mounting portion of a pre-cutting processing frame. A reaper for an agricultural machine.

[0002]

2. Description of the Related Art Conventionally, in agricultural machines such as combine harvesters,
When changing the mounting position of the clipper type mowing device with respect to the cutting blade mounting part of the mowing pretreatment frame, it is provided on the support frame of the mowing pretreatment device as shown in Japanese Utility Model Laid-Open No. 5-48631. The intermediate metal fitting as the third intermediate member is provided between the mounting metal fitting as the cutting blade mounting portion and the blade holder supporting the fixed blade of the hair clipper type cutting device, and the third intermediate material is attached to the support frame. The position is changed between the case where the cutting blade is mounted on the upper surface of the cutting blade mounting portion and the case where the cutting blade is mounted on the lower surface of the cutting blade mounting portion, and the clipper-type cutting device is mounted on the tip upper surface of the third intermediate member after the position is changed. The mounting position of the clipper-type cutting device can be changed up and down with respect to the cutting blade mounting portion of the pre-cutting processing frame.

[0003]

The change of the mounting position of the hair clipper type cutting device is carried out in order to cut the rice stock as low as possible when lining the onions and the like. In such a case, the cutting is performed. It was possible to lower the mounting height of the clipper-type cutting device to the pre-mowing treatment frame without changing the clearance angle of the blade, and it was easy for farmers to change the mounting position of the clipper-type cutting device. It was designed so that it could be performed.

However, in the conventional structure described above, when the hair clipper type cutting device is fixed to the cutting blade mounting portion provided on the support frame of the cutting pretreatment device via the third intermediate member via bolts. In addition, since the burring hole for inserting the bolt is formed in the cutting blade mounting part and the screw hole for the bolt is formed in the third intermediate member, the third intermediate member is provided with the third hole with respect to the cutting blade mounting part. When changing the mounting position of the intermediate member up and down and fixing the clipper-type reaper with bolts, the insertion direction of the bolts is inverted, so when the bolts are located below, the bolts cannot be tightened and fixed. There is room for improvement because it is difficult, and when the tightening force of the bolt becomes loose due to vibration or the like, the bolt is likely to fall off, which may lead to the clipper-type cutting device falling off.

SUMMARY OF THE INVENTION It is an object of the present invention to easily change the mounting position of a clipper-type mowing device by a simple structural improvement and to prevent the bolt from falling off.

[0006]

According to a first aspect of the present invention, there is provided a cutting device mounting structure for an agricultural machine in which a clipper-type cutting device is mounted on a cutting blade mounting portion of a pre-cutting processing frame so as to be vertically movable via bolts. In the cutting blade mounting part of the clipper type mower attached to either one of the upper surface or the lower surface of the cutting blade mounting portion, and the cutting blade mounting portion, a pair of left and right bolt holes are formed, respectively. , Of the pair of left and right bolt holes formed in the receiving table, one bolt hole is a screw hole,
The other bolt hole is formed in a stupid hole, and one of the pair of left and right bolt holes formed in the cutting blade mounting portion is a bolt hole corresponding to a screw hole of the receiving blade, and the other bolt hole. Is formed in a screw hole corresponding to a fool hole of the receiving stand, and bolts are used for the fool hole formed in one of the receiving stand and the cutting blade mounting portion and the screw hole formed in the other. Is inserted from above and the clipper-type cutting device can be fixed to the upper surface or the lower surface of the cutting blade mounting portion. [Operation] When mounting the clipper-type cutting device on the cutting blade mounting part of the pre-cutting frame, place the clipper-type cutting device on the upper surface of the cutting blade mounting part, and then receive the clipper-type cutting device. A bolt is inserted from above into the stupid hole formed in the blade base and the screw hole formed in the cutting blade mounting portion to fix the bolt. On the other hand, when mounting the clipper-type cutting device under the cutting blade mounting part of the pre-cutting frame, attach the blade holder of the clipper-type cutting device to the lower surface of the cutting blade mounting part to form it on the cutting blade mounting part. The bolts are inserted from above into the stupid holes and the screw holes formed in the blade holder of the clipper-type cutting device to be fixed. In this way, the cutter holder of the hair clipper-type cutting device and the cutting blade mounting portion of the pre-cutting frame are each provided with a pair of upper and lower fool holes and a screw hole, which are selection holes for attaching the upper part of the clipper type cutting device and lower parts. By arranging the selection holes for use in parallel, the connecting bolt of the clipper type mowing device can be screwed from above regardless of the change in the vertical mounting position of the clipper type mowing device. [Effect] As a result of the above configuration, when the hair clipper-type cutting device is mounted above the cutting blade mounting portion of the pre-cutting frame,
Alternatively, in the case of mounting on the bottom, in any case, the connecting bolt can be screwed on the hair clipper-type cutting device from above, so that the bolt can be easily tightened and loosened, and the bolt can be loosened. Prevents the bolt from falling off,
In turn, the clipper-type cutting device can be prevented from falling off.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to a combine harvester. FIG. 4 shows the front part of the combine. This combine is equipped with a threshing device 3, a control unit 4 and the like mounted on a machine body frame 2 supported by a pair of left and right crawler traveling devices 1, and can swing up and down around the horizontal axis X at the front end of the machine body frame 2. The pre-cutting processing unit 6 is attached to the structure.

As shown in FIG.
Fixed fixed weeding tools 7a, 7b, 7c, 7d, three grain culm raising devices 8A, 8B, 8C, a reaping device 5, a first,
The second and third scraping transfer devices 23, 24, 25 and the vertical transfer device 10 are configured to be supported by the cutting pretreatment frame 11. And the stem-culm introduction route Ra between the rightmost fixed weeding tool 7a and the second fixed weeding tool 7b from the right
Has a large interval and usually introduces one row of grain culm, but at this interval, two rows of grain culm can be introduced. The vertical transfer device 10 is composed of a tip locking transfer mechanism 10A and a stock holding device 10B, and is configured to be swingable up and down around a left and right fulcrum X in the rear portion so that the handling depth can be adjusted. There is. Then, the transported grain culm is transferred from the transport end portion of the vertical transport device 10 to the feed chain F.

The three grain culm raising devices 8A, 8B, 8
C are arranged side by side on the left and right, and the second and third raising devices 8B and 8C are arranged in the state where the first raising device 8A and the pair of stem culm introduction paths Rb and Rc face each other in order from the right. And are installed side by side.

The first, second and third scraping and conveying device 2
3, 24 and 25 are respectively provided with gear-shaped resin first, second and third scraping rotors 9A, 9B and 9C. These first, second, and third scraping rotary members 9A, 9B, 9C
Are first, second and third raising devices 8A, 8B,
8C, which are arranged in a state of being positioned behind 8C, and each of which is a vertically oriented rotation spindle so as to be rotatably supported around a vertical axis that is inclined forward with respect to the horizontal transmission case portion 11A of the pre-cutting treatment frame 11. It is supported by 9a, 9b and 9c. In addition, the second scraping rotor 9B in the center is the other first and third scraping rotors.
It is formed to have a smaller diameter than the scraping rotors 9A and 9C.

The first, second, and third scraping rotary members 9
The rotation support shafts 9a, 9b, 9c of A, 9B, 9C are simply
The first scraping rotor 9A and the third scraping rotor 9C are rotatably supported by the fixed part of the lateral transmission case 11A, and the first scraping rotor 9A and the third scraping rotor 9C are, as shown in FIG. It is rotatably driven via the vertical drive shafts 20 and 26 which are rotatably driven by a transmission mechanism incorporated in the portion 11A. As shown in FIG. 2, the first scraping rotor 9A includes a sprocket 20a fixed to the vertical drive shaft 20 and a sprocket fixed to a rotation shaft 9a provided on the lower side of the first scraping rotor 9A. It is rotationally driven by a chain 41 having a projection for transporting the grain culm which is wound around 40. As shown in FIG. 5, the third scraping rotary member 9C is a small-diameter spur gear 27 mounted on a rotary drive shaft 26 that is driven and rotated by a lateral transmission case portion 11A of the mowing frame 11 via a transmission mechanism provided internally. And a rotation support shaft 9c for supporting the first scraping rotation member 9C.
Is driven to rotate by engaging a large diameter spur gear 28 rotatably mounted on the. The second scraping rotary member 9B has a third
The third scraping rotary member 9 is engaged with the scraping rotary member 9C.
It is adapted to be driven to rotate as C rotates.

The drive structure of the third swaging rotary member 9C will be described in detail. As shown in FIG. 5, a support flange 29 having a boss portion 29a for fitting the scraping rotary member is provided, and the boss portion 29a is provided. A pair of metal square plates which are fitted to the upper and lower central square recesses while being fitted on the rotary support shaft 9c so as to be rotatable relative to each other and to be engaged with the large-diameter spur gear 28 so as to be integrally rotatable from above. A third scraping rotator 9C sandwiched by 30 from above and below so as to be relatively non-rotatable is fitted onto the boss portion 29a together with the square plate 30 so as to be relatively rotatable. Then, the upper square plate 30 is fitted onto the boss portion 29a in an externally mounted state.
The disc spring 32, which is brought into contact with the spacer 31 via the spacer 31, is tightened by the nut 33 screwed to the female screw portion of the upper end of the boss portion 29a, thereby sandwiching the base end portion of the third scraping rotor 9C with a constant pressure. By pressing, the third scraping rotary member 9C and the square plate 30 can rotate integrally with the support flange 29 within a certain load range, and when a further load is applied, the third scraping rotary member 9C slips and stops rotating. It is configured as follows.

A sprocket 43 for the transport chain 42 with a protrusion is attached to the lower surface of the third swaging rotary member 9C. As shown in FIG. 4, the transport chain 42 with protrusions has a vertical transmission case portion 11a of the first scraping rotor 9A and a vertical transmission case portion 11 of the third scraping rotor 9C.
This is for preventing the transport grain culm passing between c and c from being clogged at this portion, and forcibly transporting the scraps and mud accumulated at this portion toward the rear. The transport chain 42 is wound around the sprocket 43 and a U-shaped guide plate 44 in a plan view, and the U-shaped guide plate 44 is, as shown in FIG. 3, the vertical transmission case portion 11c. It is attached to a support frame 45 extending from the position adjuster through a long hole 44a provided in the guide plate 44 so that the tension with respect to the elongation of the chain can be adjusted.

Further, as shown in FIG. 5, reference numeral 34 denotes a thin plate-shaped gear cover for covering the small diameter spur gear 27 and the large diameter spur gear 28 from below, which is an annular groove formed on the lower surface of the third scraping rotor 9C. It is fixed to a disc-shaped fixing portion 37 continuous with the vertical transmission case portion 11c of the rotary drive shaft 26 in a state in which it is relatively rotatably engaged with the lower portion 35 from below.

As shown in FIGS. 2, 3 and 5, the drive pulley 12 is mounted on the upper ends of the first, second and third scraping rotary members 9A, 9B and 9C via a support plate 38. They are connected to each other by bolts, and the drive pulley 12
Auxiliary transport with locking projections on the front side of the first, second, and third scraping rotary members 9A, 9B, 9C, that is, over the driven pulleys 13 located near the raising devices 8A, 8B, 8C. Wrap the belt 14 around the 1st, 2nd, 3rd
An auxiliary transfer device 15 for locking and transferring the stalks is provided at a position higher than the scraping rotary members 9A, 9B, 9C. In each auxiliary transport device 15, these drive pulley 12 and driven pulley 1
A support cover 16 is provided so as to support 3 and cover the belt portion of the auxiliary transport belt 14 on the upper side.

Then, as shown in FIG. 2 and FIG.
The support shaft 16 of the driven pulley 13 of the auxiliary transfer device 15 provided on the second and third scraping rotary members 9A, 9B, and 9C is rotatably supported by the support cover 16. Reference numeral 19 in the figure denotes a large-diameter gear as a scraping wheel body provided in a state of facing the first scraping conveying device 23, and from the second scraping rotary member 9B via a chain (not shown). Driven to rotate.

With the above structure, the second scraping rotary member 9B
Since the large-diameter gear 19 is driven to rotate by the drive of, the grain culm that is moved by the first raising device 8A and then moved to the rear of the first raising device 8A is locked by the teeth of the large-diameter gear 19. The large-diameter gear 19 that is conveyed and is disposed so as to form the scraping action surfaces that face each other in plan view, the first scraping rotor 9A, and the auxiliary transporting device 15 of the first scraping rotor 9A. While being held, the grain culm is harvested by the harvesting device 5 and transferred to the vertical transport device 10.

As shown in FIG. 4, the clipper-type cutting device 5 comprises a pair of left and right weeding support rods 7A, 7D on the outermost side of the machine body.
The hair clipper-type cutting device 5 is installed over
Is composed of a movable blade 50 that is driven to reciprocate left and right and a fixed blade 51, and the movable blade 50 is divided into two in the left-right direction.
As shown in FIG. 6, the fixed blade 50 is screwed and connected to the receiving blade base 52 to be integrated, and the movable blade 5 is also integrated.
1 is integrated with the knife bar 53 by screwing. The movable blade 50 has a rear portion slidably supported by a pair of upper and lower slide plates 54 and 55 and a liner 56 interposed therebetween, and a front portion of the knife having a cutting blade lifting prevention bar 57a. Each of these members 5 is pressed down via the clip 57.
4 to 57 are fixed to the blade receiving base 52 via bolts 58. Then, as shown in FIG. 4, the pair of left and right movable blades 50 are driven to reciprocate left and right via a crank arm 60 engaged with a knife head 59 fixed to the upper surface of the knife bar 53.

The blade receiving base 52 has three brackets 11C fixed to the upper surface of the horizontal frame 11B and a cutting blade mounting bolt 6 attached thereto.
It is fixedly connected via 4. The horizontal frame 11B
A pair of left and right plates 7A 'and 7D' fixed to both ends are attached to the side surfaces of the lateral transmission case portion 11A and fixedly connected to the lateral transmission case portion 11A. The horizontal frame 11B
A pair of left and right weed support rods 7A and 7D on the outermost side of the machine are fixedly connected to the side surfaces of the pair of left and right plates 7A ′ and 7D ′.

On the upper surface of the pair of left and right movable blades 50, the mud adhered to the rear surface of the horizontal frame 11B or the horizontal frame 11B and the horizontal frame 11B in a state desired by the grain transfer routes R1 and R2 on the upper surface of the reaper. In order to disintegrate mud, weeds, straw debris, etc. accumulated in a bridge shape across the transmission case portion 11A, and further to contact with a transport grain culm passing through the upper surface of the reaping device 5 to the root of the grain culm. A staying material scraping tool 61 for knocking off adhered scraps and mud is attached. The accumulated substance scraping tool 61 has a generally triangular shape in a side view, in which the vertical width of the tip is narrower and becomes wider toward the rear, and the mounting plate 62 is mounted on the upper surface of the knife bar 53 through a bolt.
Is fixed to the upper surface of the through a bolt 63. The mounting plate 62 on the left side is formed in a U shape having an opening on the rear side of the machine body in a plan view so that the mounting plate 62 does not contact the cutting blade mounting bolt 64.

As shown in FIG. 9, a pair of left and right bolt holes 65a, 65b, 66a, 66 are provided in the receiving blade base 52 and the cutting blade mounting bracket 11C, respectively, in a state of being close to each other.
b is formed. The left bolt hole 65b formed in the receiving table 52 is a boss hole for inserting a bolt, and the right bolt hole 65a is a screw hole for inserting a bolt. On the other hand, the left side bolt hole 66b formed in the cutting blade mounting bracket 11C is a screw hole corresponding to the stupid hole 65b, and the right side bolt hole 66a is formed in a stiff hole corresponding to the screw hole 65a. Therefore, the clipper-type cutting device 5
Is mounted on the upper surface of the cutting blade mounting bracket 11C of the horizontal frame 11B, as shown in FIG. 7, the blade holder of the clipper-type cutting device 5 positioned on the upper surface of the cutting blade mounting bracket 11C of the horizontal frame 11B. Fooling hole 65 on the left side of 52
b and the screw hole 66 on the left side of the cutting blade mounting bracket 11C
Insert the bolt 64 into b from above and fix it. Then, as shown in FIG. 8, when the clipper-type reaping device 5 is attached to the lower surface of the cutting blade mounting bracket 11C of the horizontal frame 11B, a fool hole 66 on the right side of the cutting blade mounting bracket 11C.
A and the bolt 64 are inserted from above into the bolt hole 65a on the right side of the blade holder 52 of the clipper-type cutting device 5 and fixed. The vertical mounting position of the hair clipper type mowing device 5 can be changed with the movable blade 50, the fixed blade 51, the knife clip 57 and the like unitized.

As shown in FIG. 3, a sled 67 for adjusting the cutting height is provided at the lower part of the weed supporting rod 7D so that the height can be adjusted through a bolt 68 and a long hole 69. It is adjusted in accordance with the change in the vertical mounting position of the clipper-type cutting device 5. To adjust the cutting height, the cutting pretreatment unit 6 is lowered, the cutting height is first set, and the sled 67 is fixed so as to contact the ground.

[Other Embodiments] Although the combine harvester is described in the above embodiment, it may be a binder harvester.

[Brief description of drawings]

FIG. 1 is a side view showing a front portion of a combine body.

FIG. 2 is a schematic plan view showing a stalk-culm merging portion and the like of the pre-cutting processing portion.

FIG. 3 is a side view of a pre-cutting unit.

FIG. 4 is a plan view of a clipper-type cutting device.

FIG. 5 is a vertical cross-sectional side view of a third scraping conveyance device.

FIG. 6 is a vertical sectional side view showing a mounting state of the clipper type mowing device.

FIG. 7 is a vertical cross-sectional side view showing a state in which the clipper-type cutting device is attached above the cutting blade attachment portion.

FIG. 8 is a vertical sectional side view showing a state in which the clipper-type cutting device is attached below the cutting blade attachment portion.

FIG. 9 is a perspective view of a clipper-type cutting device.

[Explanation of symbols]

 5 Clipper type mowing device 11 Mowing pretreatment frame 11C Mowing blade mounting part 52 Receiving table 64 Cutting blade mounting bolt 65a Screw hole 65b Stupa hole 66a Stupa hole 66b Screw hole

Claims (1)

[Claims] 1. A harvesting device mounting structure for an agricultural machine, wherein a clipper-type harvesting device is mounted on a cutting blade mounting part of a pre-mowing treatment frame via a bolt so that the vertical position can be changed. A pair of left and right bolt holes are formed in the cutting blade mount of the clipper type cutting device attached to one of the surfaces and the cutting blade mounting portion, respectively, and a pair of left and right bolt holes formed in the receiving blade base are formed. Of the pair of left and right bolt holes formed in the cutting blade mounting portion, one of the bolt holes is formed as a screw hole and the other bolt hole is formed as a stupid hole. In the stupid hole corresponding to, the other bolt hole is formed in the screw hole corresponding to the stupid hole of the receiving blade, and the stupling hole formed in any one of the blade receiving portion and the cutting blade mounting portion. Insert the bolt from above into the screw hole formed on the other side A clipper-type harvesting device mounting structure for an agricultural machine, wherein the clipper-type harvesting device can be fixed to an upper surface or a lower surface of the cutting blade mounting portion.