JPS6361895B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A conventional tying machine for a combine harvester is provided with a transmission case having a needle that operates intermittently and a packer that operates in conjunction with each other on one side of the straw removal path, and a shaft that interlocks with the needle shaft from the transmission case. Extend to the panicle side,
A chain case is raised from the extending end, and a nodule shaft is cantilevered from the upper end of the chain case to above the transmission case, and a holder, a building, a nodule guide, etc. are attached to the tip of the nodule shaft. I was wearing a nodule.

Therefore, the transmission device has become extremely large, and it is extremely difficult to attach and detach it to the threshing device and adjust the binding position, and it is also heavy, requires excessive power, and is extremely expensive.

In addition, since the chain case is wide and large, the movement of the waste straw that is scraped into the collection part is obstructed, and the collected waste straw becomes intertwined and becomes extremely disordered.

The purpose of the present invention is to improve the above-mentioned drawbacks by disposing a transmission case equipped with a packer, a door, and a knot on one side of the straw removal path. A needle is provided on the other side, and the needle shaft of the needle and a shaft driven by a one-rotation clutch that interlocks with the door are interlocked and connected via a crank arm and a rod.

The embodiment shown in the drawings will be explained below.1
is a self-thresholding type threshing device mounted on the base of a combine harvester with a traveling device, and on the top plate of the dust removal chamber 4, the straw discharged from the culm is transferred from the feed chain to the ear side. A clamping conveyance body 5 is installed diagonally, and this clamping conveyance body 5 has a guide rail 5b disposed opposite to the lower surface of a conveyance chain 5a, and a cutter A is attached to the lower rear end thereof.

6 has three approximately parallel horizontal rods 7a, 7b, and 7c arranged so as to form a triangular shape when viewed from the side, and their ear side is welded to the apex of the triangular frame, and the stock side is connected to the lower two.
The horizontal rods 7b and 7c of the book are connected by a rod in the front and back direction, and the upper horizontal rod 7a is bent slightly toward the rear at the top of the holding conveyor 5, and the side ends are bent downward. It is a support frame formed by welding to the rod in the longitudinal direction at a position corresponding to the rear part of the inlet of the cutter A, and its front part is connected to the rear part of the threshing device by a link 8.

The speed coupling device B includes a transmission case 9 that is long in the direction of the transfer path on one side (in this example, the upper part) of the movement path, and a needle 10 on the other side. Pipe 1 loosely fitted to rod 7a
1, and the lower end of the tip resistance rod 12 protruding from the rear can be loosely fitted into the rear horizontal rod 7b to allow horizontal movement and fixation, and the attachment position of the tip resistance rod 12 can be changed to the direction of the culm. By doing this, the release position of the straw bundle can be changed.

In the middle part of the transmission case 9, there is provided a packer 13 and a door 14, a collecting culm 15 is formed on the cutter A in front of the door 14, and a knot consisting of holders 16 and 17 provided at the rear of the transmission case 9. A binding part 9 is formed between the connecting part and the switching part 18 below it, and a discharge arm 20 is provided at the rear of the knot part.

Next, to explain the transmission mechanism of the binding device B, the input sprocket 21 provided at the front of the transmission case 9 is moved laterally to the input shaft 22 driven by the blade shaft of the cutter A (or an appropriate shaft of the threshing device 1). It is possible to spline fit, and the Patscar shaft 23
is driven through a fixed position stop clutch 24 having a sprocket 23' and a chain 25, and the articulation shaft 26 is intermittently rotated by the packer shaft 23 through a one-turn clutch 27 actuated by sensing actuation of the door 14.

Further, the needle shaft 2 supported on the pipe 11
The crank arm 28a provided at the ear side end of No. 8 is the crank arm 26a provided at the ear side end of the knot 26
The boss portion of the crank arm 26a has a tightening bolt 26b, and a parallel receiving surface is formed on the peripheral surface of the end portion of the knot portion 26, so that the crank arm 26a is driven by a rod 29. a string supply waiting position in which the needle 10 faces below the binding part 19 by rotating the needle 180° and tightening and fixing the needle 10;
It can be pulled up upward and retracted into the binding part 19 to take a retracted position.

Note that instead of the above-mentioned retraction operation of the needle 10, C
The needle 10 may be removed from the needle shaft by engaging and disengaging the pin 10'.

And the crank arm 3 is attached to the car shaft 23.
0 and a clutch plate 31 having a tapered protrusion 31a.
The eccentric cam 33 with the ring 32 loosely fitted on the outer periphery and the clutch actuating plate 34 having a tapered hole 34a on the side surface are rotatably fitted between them. A pin 33b with tapered ends is provided in the hole 33a in the plate surface of the eccentric cam 33.
The eccentric cam 33 and the clutch actuating plate 34 are connected to each other by a torsion spring 35 so that the tapered portion of the pin 33b is pushed out of the tapered hole 34a.

Further, one end of a packer pin 36 that is integrated with the ring 32 is rotatably connected to the packer 13, and an arm 37 fixed to the other end is rotatably connected to the crank arm 30 by a pin 37'. .

Therefore, when bundling waste straw discharged from the clamping and conveying body 5, the door 14 does not sense the predetermined pressure at the beginning, so the stop arm 38 moves against the clutch actuating plate 3.
4, one end of the pin 33 is in sliding contact with the plate surface of the clutch actuating plate 34, and the other end is in sliding contact with the plate surface of the clutch actuating plate 34.
Since the clutch actuating plate 34 and the eccentric cam 33 are integrally rotated with the crank arm 30 and the clutch plate 31 together with the clutch shaft 23, the clutch pin 36 is in contact with the clutch shaft 23. It rotates on a circular locus (a) with 23 as the center, and the tip of the packer rotates on a circular locus (c) on the locus (c).
Immediately before the straw conveyed is released from the grip, it is scraped off while wrapping on the side of the conveyance chain 5a and scraped onto the front surface of the door 14.

When a predetermined amount of waste straw is collected on the switching plate 42 in front of the door 14 in this way, it is transferred to the door 14.
This causes the stop arm 38 to tilt via the link 39 and engage the stepped portion of the clutch actuating plate 34 to stop the clutch actuating plate from rotating, so that when the pin 33b faces the taper hole 34a, the taper protrusion 31a The eccentric cam 33 is pushed out by the ring 32 and fitted into the tapered hole 34a, and the eccentric cam 33 stops in a position protruding rearward.
At the same time, it is guided by the outer periphery of the eccentric cam 33 and follows a circular trajectory (a).
, the packer 13 sweeps the waste straw focused on the converging section 15 into the bundling section 19 at once on the (d) trajectory.

Also, since the one-turn clutch 27 of the knotting shaft 26 enters a little later than the operation of the stop arm 38, the needle 10 performs a stringing action, and then when the bill 17 is actuated and knotted, the release arm 2
0 releases the straw bundle by rotating the knot shaft 26 and regulating the link, as in the conventional one.

Furthermore, the bundled straw is tied to the binding part 19 by the packer 13.
When you push it out, the door pressure disappears and the stop arm 3
8 separates from the stepped portion of the clutch actuating plate 34, the torsion spring 35 urges the clutch actuating plate 34 and the eccentric cam 33 to rotate relative to each other, so the pin 33b is pushed out and the clutch plate 31 rotates. When the tapered protrusion 31a engages with the pin 33b, the picker 13 repeats the raking operation along the locus (c) of raking the waste straw into the front surface of the door 14.

In addition, when collecting waste straw without tying it and discharging it to the field, the needle 10 is moved to the tying part 19 as described above.
Pull up the door 14 inward and store it, loosen the mounting nut of the door 14, move it backwards and temporarily fix it, rotate the switching plate 18 downward so that it overlaps the rear surface of the cutter A, and use the clutch lever 24 to lock the clutch at the fixed position. 24, the packer 13 rises to the vicinity of the base of the door 14 and stops, and the holding conveyor 5 sends out the waste straw to the discharge passage 40. In addition, if the fixed position stop clutch 24 is not disengaged, the pack car 13 continues to scrape out the waste straw backward, and the waste straw is scraped into the discharge passage 40, and in any case, it is collected on the dropper 41, and the amount of collected straw is kept constant. Each time the dropper 41 is released, the dropper 41 is tilted downward and released.

If you want to further shred the waste straw, use the clutch lever 24.
When the switch a is turned off, the fixed position stop clutch 24 is disengaged, and the police car 13 rises and stops at a position approaching the base of the door 14.

After that, install the opening/closing plate 4 at the inlet of the cutter A.
When 2 is opened, the waste straw discharged from the rear end of the holding and conveying body 5 is scattered on the field cut into pieces by the cutter A.

In this example, struts a are provided protruding from the left and right side plates of the cutter A, and are connected to the support frame 6.

Next, another embodiment will be described with reference to FIGS. 9 and 10. Immediately after the clamping and conveying body 5, the disc blade 43 of the cutter A is placed on the upper side and the star foil blade 44 is placed on the lower side. is supported so as to be able to rotate around the shaft 43a of the disc blade 43, and behind it is a binding device B similar to the previous embodiment, which is a side mirror and has a right triangular frame that is long in the front and back. It is attached to a support frame 6 connected by a plurality of horizontal rods so as to be adjustable in horizontal movement.

Then, when the star foil blade 44 is set slightly in front of the disk blade 43 as shown by the solid line and the switching plate 45 is tilted downward, the waste straw is shredded by the cutter A, and the switching plate 45 is raised. Tilt the door 14
The star foil blade 44 is placed close to the lower end of the shaft 44.
When the fixed position stop clutch 24 in the previous example is engaged, the car 13 is rotated backwards with a.
The waste straw is raked into the bundling section, and when the amount of bundling reaches a predetermined amount, the packer 13 rakes the bundling straw into the bundling section 19, so that it is bundled.

As mentioned above, the present invention has a
A transmission case equipped with a packer, a door, and a knot is installed, and a needle is installed on the other side of the straw removal path.
The needle shaft of the needle and the shaft driven by the one-turn clutch that interlocks with the door are interlocked and connected via the crank arm and rod, so that the transmission of the constantly driven police car, the door, and the one-turn clutch that interlocks with it, etc. The entire mechanism can be housed in one transmission case, making it possible to significantly reduce the size of the transmission device, which is the most costly and heavy transmission device, and the needle that operates intermittently can be replaced by an extremely simple means of using a crank arm and a rod. Since the binding section is operated by the operator, the weight of the entire binding section can be significantly reduced, and attachment/detachment to/from the threshing device or adjustment of the binding position can be carried out extremely easily.

In addition, since the needle is driven by a rod, there is very little chance of any obstruction in the removal of straw, and it is possible to prevent the collected straw from crossing over or being disorganized as much as possible.

[Brief explanation of drawings]

The drawings show one embodiment of the invention,
Figure 1 is a side view, Figure 2 is a side view of the main parts, Figure 3 is a plan view of the same as above, Figure 4 is a rear view of the same as above, Figure 5 is an exploded plan view of the transmission, and Figure 6 is of the car. Action diagram, Figure 7 is a sectional view of the drive mechanism of the police car, Figure 8
9 is a side view of another embodiment, FIG. 10 is a plan view of the same, FIG. 11a is a side view of the needle drive body, and FIG. 11b is a front view of the boss portion of the crank. A... Cutter, B... Binding device, 9... Transmission case, 10... Needle, 13... Packer,
14... Door, 15... Focusing part, 19... Binding part, 23... Packer shaft, 26... Nodule shaft, 27
...One-turn clutch, 28...Needle shaft, 29
...Lotsud.

Claims (1)

[Claims] 1. A transmission case equipped with a packer, a door, and a knot is provided on one side of the straw removal path, a needle is provided on the other side of the straw removal path, and a needle shaft of the needle and a transmission case that interlocks with the door are provided on the other side of the straw removal path. A binding machine for a combine harvester, characterized in that a shaft driven by a rotating clutch is interlocked and connected via a crank arm and a rod.