JPH0335079Y2 - - Google Patents

Description

[Detailed description of the invention] A combine knotter equipped with a bundle discharge device equipped with tines that rotate and appear on the discharge side of a conventional binding device, and a straw bundle discharged from the binding device is conveyed to an already cut field diagonally rearward. Combine harvester knotters and the like are already known that use a chain and a clamping rail to clamp and transport the straw bundles, but the former not only requires a guide to receive and guide the straw bundles, but also the discharge direction is disturbed depending on the length of the straw. In particular, since long culms are threshed with the handling depth adjusted, the stem of the straw protrudes greatly, so it is not possible to remove the straw bundles by simply installing an ear-wiping rod only on the tip side. It was not possible to turn it sufficiently and release it toward the mowed field.

In addition, the latter has drawbacks such as the straw bundle discharging device being extremely heavy and expensive, and the straw bundles sometimes clogging.

The present invention is an attempt to improve the above-mentioned drawbacks, and the present invention is to provide a holding tube in which a bundle discharge shaft is installed on the discharge side of a bundling device, and to install the holding tube obliquely so that the stock base side is rearward. A bundle throwing body rotatably operated by a bundle discharge shaft is attached to the end of the straw bundle on the stock side side, and an ear receiver receives the ear side of the straw bundle released by the sweeper on the ear side from the node of the bundling device. and a stem resistor that hangs down near the holding tube at the rear of the panicle receiver, so that the straw bundle that rotates around the panicle receiver at the initial stage of bundle release is supported by the retainer. The bundle is characterized by being configured to be thrown by rotating around the stem resistor by the release action of the bundle throwing body.

The embodiment shown in the drawings will be explained below.1
is a threshing device mounted on a machine base 2 having a traveling device, and a straw conveying body 3 consisting of a clamping rail and a conveying chain 3a is provided at the rear of the culm discharge port. There is a desk type cutter 4
is attached by engaging the pipe 5a and the protrusions 5b with the latches 6, 6.

7 has a knot 8 and a sweeper 9 at the top, and a sweeper 10, a needle 11 and a door 12 at the bottom.
The knotter support frame 13, which will be described later, is removably attached to the knotter support frame 13, which will be described later.

The knotter support frame 13 is connected and fixed to frame plates 15, 15 from which both side plates 14, 14 of the cutter 4 extend rearward, and to the lower rear end of the frame plates 15, 15, and protrudes toward the ear side. a supporting pipe 16, and a connecting pipe 1 protruding from the projecting end of the supporting pipe 16 and the upper part of the frame plate 15 on that side.
It consists of a side frame plate 18 fixed to the support pipe 16, and a square cylindrical frame 20 built on a U-shaped frame 19 fixed to the side frame plate 18 and the stock side frame plate 15. Receiver frame 2 engaged from above so as to be horizontally movable
1 has a pair of left and right receiving plates 21', 21', and an arm 2 whose base is pivotally supported by the front ends of the receiving plates 21', 21'.
The transmission case 7a below the binding device 7 is connected to the receiving plate 2 by a bolt 23, a compression spring 24, and a tightening nut 25, which are pivotally supported at the lower rear end of the transmission case 7a.
1' and 21', and is removably attached by bolts 26, 26 and nuts.

In addition, a holding cylinder 27 in which the knot shaft of the binding device 7 is housed
and a chain case 29 that connects the ear side end of a holding cylinder 28 which protrudes from the transmission case 7a toward the ear side and houses a shaft that rotates when the clutch is engaged once.
The holding cylinders 27 and 28 near the ear part are connected by an ear receiver consisting of a support pipe 31 which has an ear removing body 30 and is curved toward the rear, and the upper holding cylinder 27 is connected to the square cylinder frame 20. Since it is screwed with bolts 34, 34 to a receiver 33 which is engaged from behind and can be adjusted laterally by pins 32, 32, the receiver frame 21 and receiver 33 can be adjusted laterally. The binding device 7 can be moved laterally and can be removed by removing the bolts 26 and 34.

Furthermore, a pair of scraping bodies 35, 35 are provided between the rear end of the straw transporting body 3 and the binding device 7, and the scraping bodies 35, 35 have a U-shaped frame as shown in FIG. 1
A hexagonal shaft 36 is rotatably supported on the hexagonal shaft 36 and the side frame plate 18, and a pair of left and right arms 38, 38 are fixed to a boss 37 that is slidable on the hexagonal shaft 36 and is fitted to rotate integrally with the hexagonal shaft 36. and a scraping tine 40 rotatably supported on the arm 38 by a pin 39.
40, and the hexagonal shaft 36 is fixed to a support pipe 41 into which the hexagonal shaft 36 is rotatably loosely fitted, and the scraping tine 4
The cam 43 is in sliding contact with the roller 42 of No. 0, and the springs 44, . . .
... are pressed into contact with the cams 43, 43, respectively, and the boss 37 is connected to the support pipe 41 via a bearing 45.
The rear end of an arm 47 protruding rearward from the support pipe 41 is held in a holder 46 fixed to the support pipe 41, and the rear end of an arm 47 is locked to the square tube frame 20 so as to be adjustable in horizontal movement. By inserting the pins 49, 49 into any of the holes 50, .

In addition, the base of the scraping tines 40... is covered by a cover 51.
A guide plate 52a made of a leaf spring and protruding forward from the stock side of the U-shaped frame 48
The spring rods 52b and 52b face the stock side of the left scraping body 35, and the spring rods 52b attached to the cover 51 on the ear side also serve as a straw removal conveyor like the guide plate 52a and spring rod 52b on the stock side. Guide the upper surface of the straw released from 3.

The spacing between the left and right scraping bodies 35, 35 is narrow enough to avoid colliding with the rear part of the straw removal carrier 3 even if they are adjusted laterally, and is smaller than the width of the straw removal carrier 3. The binding device 7
The pack car 10 has three scraping pieces 10', 10'', 1
0, and its scraping width (raking pieces 10, and 10
The spacing between the left and right scraping bodies 35 is wider than the spacing between the left and right scraping bodies 35 (the scraping width).

Next, to explain the root leveling device, the root leveling board 53
The upper part of the support shaft 54 to which the base of is attached is
Holding pipe 5 fixed to the rear end of support arm 55
The support arm 55 is rotatably suspended from the support arm 55.
The front part rotates integrally with the hexagonal shaft 36 and is loosely fitted into a rotating body 56 that can move laterally, and the flat plate part 55a near the rear rests on the square cylindrical frame 20 and is attached to the lower surface of the square cylindrical frame 20. and the lower surface of the flat plate part 55a are fixed to the flat plate part 55 by the set bolts 58.
Since it is fastened to the rectangular tube frame 20 by tightening it to the square tube frame 20, depending on the length of the straw (generally, the harvested grain culm is threshed after adjusting the handling depth, so the stock position changes).
The root leveling device can be adjusted laterally.

Further, the ear portion side of the rotating body 56 is formed as an eccentric ring 59, and the mounting piece 61 of the ring body 60, which is fitted to the outer periphery of the eccentric ring 59 via a bearing, has a base that is attached to the support shaft. The tip of the rod 63, which is connected to the swing arm 62 at the upper end of the hexagonal shaft 54 through a joint 62', is screwed through a spring 64 with a nut 65, so that when the hexagonal shaft 36 is rotated, the support shaft 54 is rotated. The root leveling plate 53 swings back and forth from side to side and strikes the base end of the straw to level the roots.

At this time, since the root leveling board 53 faces the inside of the U-shaped frame 19 in a side view, the root leveling board 53 swings without any obstruction even when the root leveling device is moved to the furthest position toward the plant base. do.

A bundle discharge device 66 for discharging the straw bundles discharged by the sweeper 9 of the bundling device 7 is connected to the transmission case 7a.
A bundle discharging shaft 67 is installed obliquely from the rear of the barrel toward the rear of the stock side, and has holes 68, 68 at the tip thereof, and a drum 69, which faces directly behind the packer 10 and the needle 11 in plan view, is fixed, and a drum 69 is fixed to the holding cylinder 70. Attach the base of the upward U-shaped rod 71 to the lower surface of the tip, and then attach the U-shaped rod 71
The bases of tines 73, 73 loosely fitted in the holes 68, 68 are rotatably supported by a shaft rod 72 fixed to the tip of the bundle discharging shaft 67 and deviated upward from the bundle discharge shaft 67. The throwing body 66a is composed of the drum 69, tines 73, etc., and the front part of a gear case 74 that supports the base of the bundle discharge shaft 67 is rotatably attached to a cylinder 75a of a gear case 75 that is integrated with the transmission case 7a. A plate-like arm 76 is fitted and protrudes forward from the middle part of the holding cylinder 70.
is rotatably supported at the front on a fulcrum pin 76a of the transmission case 7a, and a support plate 77 provided on the side of the transmission case 7a has three holes 78 for adjusting the angle of the bundle discharge device 66. . . . and a hole 79 for hanging the bundle discharge device 66 and holding it in the position below the binding device 7 are bored, and the set bolt 80 is inserted through the hole in the plate arm 76 through the hole 78, . ...or by inserting and screwing into 79, the bundle discharge device 66 can be held in a desired posture.

The cover 81 of the bundle discharging device 66 has an elongated hole 82 from the upper rear surface to the rear surface through which the tines 73 protrude and rotate. It is attached to the cover 83 with a hinge 84, and a tension spring 85 is tensioned between the middle lower surface of the cover 81 and the lower part of the rear cover 83, so that the rear part of the cover 81 is attached to the holding cylinder 70 and the shaft rod 72. It is in contact with the upper surfaces of stoppers 86 and 87 which are welded to the upper surfaces so as to be able to come into contact with and separate from them.

In addition, 88 in the drawing is a rod whose front end is welded to the front lower surface of the guide plate 89 and whose rear part is supported by a column 90, and the rod 88 is a rod which is located between the needle 11 of the guide plate 89 and the holder 10. Since the portion where 10' appears and retracts is notched, straw waste is prevented from falling from this notch. 91 is a guide rod whose front portion is fixed to the knotter guide 92.

The stem resistor 93 is made of a hard linear body whose upper end is welded to the holding cylinder 27 of the nodule shaft, and is located behind the earing body 30 and near the base of the holding cylinder 70. The stem part of the straw bundle, which hangs down to the rear of the straw bundle and rotates to some extent around the ear part received by the support pipe 31 and the earing rod 30 when the bundle is released, is supported by the holding cylinder 70, and the stem part resistor 93 The bundle throwing body 66a is received by
The discharge action causes the material to be turned and released to the mowed field. At this time, the straw bundles with long culms have their bases protruding greatly toward the uncut land side due to the adjustment of the handling depth, but they turn to approximately the same extent as the straw bundles with short culms and remain at an approximately constant position on the harvested land side. It is emitted in a nearly constant attitude.

Next, to explain the transmission mechanism, one blade shaft 4 of the cutter 4 is connected to an appropriate shaft of the threshing device 1.
When the cutter shaft 4b is driven, the cutter shaft 4b rotates the other cutter shaft 4c via a gear, and the input shaft 7b, which is a hexagonal shaft of the binding device 7, is driven on the other hand.

Note that when removing the binding device 7, the transmission case 7
from the input shaft 7b.

The input shaft 7b is connected to the puller shaft 9 by a gear 94.
The gear 96 is meshed with an idler gear 98 loosely fitted on a shaft 97, and when the one-turn clutch 99 is engaged, the shaft 97 is started and the needle 1 is driven.
1 and the nodal shaft 100 rotate once.

Further, since the input shaft 7b also drives the hexagonal shaft 36, the scraping body 35 and the root leveling plate 53 are constantly operated. Furthermore, the bundle discharge shaft 67 is constantly driven by a gear 101 meshing with the idler gear 98 via a spur gear and a bevel gear.

In the above-mentioned apparatus, when the waste straw is to be shredded, the switching plate 4a of the cutter 4 is opened, and the waste straw is thrown into the cutter 4 and shredded.

When bundling the waste straw, when the switching plate 4a is closed, the raking tines 40 of the raking bodies 35, 35 are at the rear of the straw transporter 3, and their raking locus is the same as that of the straw transporter 3 when viewed from the side. Since the straw bundle is raked while partially lapping with the rear end, even if the straw bundle is soft and bent at the clamping part, the bending can be partially corrected while dividing it.

Moreover, even if the raking bodies 35, 35 are adjusted to move laterally, the relative positions of the guide plate 52a and the spring rod 52b do not change, and they accurately press the straw being raked in from above.

Next, the scraping piece 1 of the packer 10 of the binding device 7
0', 10'', 10 are wider than the raking bodies 35, 35, and their raking locus wraps around the trajectory of the raking body 35 in side view, inheriting the waste straw and raking it into the convergence part. The curvature of the straw bundle is further corrected, and the straw bundle is made into a substantially straight line and concentrated in front of the door 12.

During this time, the root leveling plate 35 swings and strikes the base of the stock to align it, and the door 12 indicates that the amount of convergence has reached a predetermined amount.
When it is sensed and the clutch 99 engages one turn, the needle 11 pulls out the string from the string ball in the string ball holder 102.
The string, which has been given an appropriate tension by the string brake 103, is wound around the bundled straw, and the knotting section 8 is activated to tie it, and the sweeper 9 discharges the straw bundle to the rear while removing the knots, and the ears are removed by the ear-wiping body 30. The stem end falls onto the cover 81 and is guided, and when the stem rests on the holding cylinder 70, it is received by the stem resistor 93 and the bundle discharge device 6
As the tine 72 of No. 6 throws the base of the stock diagonally backward toward the cut field, the straw bundle turns on the holding tube 70 around the stem resistor 93 and lands in the cut field diagonally backward. It is released in a nearly constant attitude toward the target.

Further, when the raking device consisting of the raking bodies 35, 35, the bundling device 7, or the root leveling device is laterally adjusted as described above, the receiver 33 and the U-shaped frame 48 prevent the above-mentioned devices from coming into contact with each other. be regulated accordingly.

Furthermore, if the waste straw is to be discharged to the rear of the machine as a long straw without being shredded or bundled (if necessary, it is collected and discharged with a dropper), the binding device 7 is removed, and the bundle discharge device 66 and cover 81 are When folded downward, the bundle release device 66 turns downward by more than 90 degrees and is pushed into the space below the bundling device 7, while the cover 81 is pulled by the tension spring 85 and attached to the rear cover. Since the tines 73 are received by the cover 83, the tines 73 are constantly rotated within the cover 81 and are therefore safe.

The waste straw discharged from the waste straw conveyor 3 is scraped rearward by the scraping bodies 35, 35, and the roots are leveled by the root leveling plate 53 and discharged to the rear of the machine.

As described above, the present invention includes a holding tube in which a bundle release shaft is installed on the release side of the bundling device, which is installed diagonally with the stock end facing backward, and a bundle release shaft is installed at the end of the holding tube on the stock end side. an ear receiver that is equipped with a bundle throwing body that is rotatably operated by a shaft and receives the ear side of the straw bundle discharged by the sweeper from the nodal part of the bundling device to the ear;
A stem resistor is provided rearward of the ear receiver and hangs down near the holding tube, and the straw bundle, which has rotated around the ear receiver at the beginning of the bundle release, is thrown while being supported by the holding tube. Since the straw bundle is thrown by rotating around the stem resistor due to the release action of the body, the straw bundle released by the sweeper of the bundling device first turns around the ear receiver and then is supported by the holding cylinder. In this state, the stem, which is stronger than the panicle, is caught by the stem resistor, and the bundle throwing body throws the base of the straw bundle diagonally backward toward the cut field. Not only short-culm straw bundles, but also long-culm straw bundles with large protruding ends can be discharged accurately and orderly. It also serves as a turning guide for the straw bundles, has a simple structure, reduces its weight and cost, and has extremely low resistance to the straw bundles, making it possible to throw the straw bundles far without causing any jamming of the straw bundles. can.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention,
Figure 1 is a side view of the combine harvester with a cutter and binding device attached to the rear, Figure 2 is a rear view of the same as above, Figure 3 is a plan view of the same as above, and Figure 4 is a plane showing a partial cross section of the straw scraping section. 5 is a side view of the root leveling device, FIG. 6 is a plan view showing a partial cross section of the same as above, FIG. 7 is an exploded perspective view of the frame, and FIGS. 9a is a partially cutaway plan view of the bundle discharge device, b is a sectional view taken along line AA of the same as above, FIG. 10 is a side view of same as above, FIG. 11 is a transmission system diagram, and FIG. 12 is a straw FIG. 3 is a plan view showing a bundle throwing action. 3... Straw removal conveyor, 7... Binding device, 13...
Knotter support frame, 16...Support pipe, 1
9... U-shaped frame, 20... Square cylinder frame, 53... Root leveling plate, 66... Bundle release device, 66a... Bundle throwing body,
67...Bundle release shaft, 69...Drum, 70...Holding cylinder, 73...Tine, 93...Bundle resistor.

Claims (1)

[Scope of utility model registration request] A holding tube in which a bundle release shaft is installed on the release side of the bundling device is installed obliquely so that the stock base side is at the rear, and a bundle throwing device that is rotatably operated by the bundle release shaft is attached to the stock base side end of the holding cylinder. an ear receiver for receiving the ear side of the straw bundle discharged by the sweeper on the ear side from the node of the bundling device; The straw bundle is rotated around the panicle receiver at the initial stage of bundle release, and while the straw bundle is supported by the holding cylinder, the straw bundle is rotated around the stalk resistor by the release action of the bundle throwing body. A bundle discharge device in a combine knotter, characterized in that it is configured to be thrown.