JPS6345168Y2 - - Google Patents

Description

[Detailed explanation of the invention] Conventional combine harvester bundling devices bundled straw in a substantially horizontal position, so both the stock side and the tip side were likely to move, resulting in uneven binding positions. Since they were released by a release arm that operated horizontally, they fell rapidly due to their own weight, not only did they not have a sufficient throwing distance, but their release positions also varied.

The present invention is aimed at providing a binding device for a combine harvester that can properly align the base of the bundled straw, provide a sufficient release distance, and enable the straw to fall in a good position by releasing it with the base of the straw first.The device is characterized in that a transmission case that drives the knotting section, packer, needle and release arm is provided on one side of the bundling chamber, and the needle is configured to bypass the tip side of the bundled straw to receive the ear side, and the release arm is configured to be lower than the needle and face the underside of the base side of the bundled straw, rotating upward to remove nodes and release the straw bundle.

1 is a threshing device 2 mounted on the combine machine stand
This is a straw conveying device that takes over straw discharged from a straw discharge port from a feed chain and transports it later, and a cutter 4 having an opening/closing switching plate 3 is attached to the rear of the threshing device 2.

Reference numeral 5 denotes a binding device attached to the rear part of the cutter 4, and its transmission case 6 is provided on one side of the convergence section 7, and is connected to a drive gear 10a of the nodule section consisting of a building 8, a holder 9, and a binding guide 10. , an input shaft 12 that drives the police car 11, and a crankshaft 13a that drives the needle 13.
The one-turn clutch 14 that intermittently drives the input shaft 12 includes a claw plate 15 that rotates integrally with the input shaft 12 and has a tapered claw 15a, a clutch plate 16 that is rotatably held on the input shaft 12 via a sleeve, and a cam. A plate 17, a bevel gear 18, a stopper 20 fixed to one end of the rotating shaft 19, and a sensing rod 21 fixed to the other end.
etc., and when the amount of culms collected reaches a predetermined amount, the sensing rod 2
1 is pushed and separated from the stopper 20, the cam plate 17 slightly rotates with respect to the clutch plate 16 by the winding spring, and the taper pin 22 fitted into the taper hole of the cam plate 17 is pushed out and the pawl plate 15 is pushed out. The clutch plate 1 is engaged with the tapered claw 15a of the clutch plate 1.
6 rotates, and since the bevel gear 18 is engaged with the clutch plate 16 by a pin, it rotates once.

This bevel gear 18 meshes with a bevel gear 23 having a Geneva gear 23a, so that the crankshaft 1
3a rotates once at the same time, but the building 8 and the holder 9
rotates once with a delay.

In addition, an arm 2 protruding from the base of the needle 13
4 is driven by a crank pin 13b via a link 25.

The discharge arm 26 has two recesses deviated by 180 degrees, and the sweeper shaft 27 fixed at the center thereof is connected to the fixed shaft 27 which pivotally supports the boss portion 36 of the needle 13.
A pawl ring 30, which is fitted into a receiver 29 integral with the sweeper shaft 27 and which transmits rotation to the sweeper shaft 27 but is slidable in the axial direction, is pressed by a weak spring 30b, and its ratchet pawl 30a moves toward the axial center. A ratchet pawl 31a of a pawl ring 31 that does not move in any direction but can rotate freely.
is engaged in.

Further, a support shaft 33 fixed to the fixed shaft 28 by a bracket 32 supports a pipe 36 having two arms 34 and 35, and one arm 3
4 is connected to the link 25 through a link 37 having an elongated hole 37a, and the other arm 35 is connected to an arm 39 of the claw ring 31 through a link 38.

In the above-mentioned apparatus, the waste straw discharged from the rear end of the waste straw conveying device 1 is guided by the culm guide 40 and the stock guide plate 41 and collected by the packer 11 into the collecting part 7.

At this time, since the discharge arm 26 is provided at a lower position than the needle 13 as shown in FIG. 2, the waste straw is received by the discharge arm 26 and the needle 13 with the stock side lowered.

When the focus is focused by a predetermined amount, the clutch 1 rotates once.
4 enters, the needle 13 is engaged, and the bill 8 and holder 9 are rotated, the sweeper shaft 27 is delayed by the length of the elongated hole 37a of the link 34 and rotated 180 degrees, and accordingly, the discharge arm 26 The straw bundle is pulled up while pushing it up, and is thrown diagonally rearward and upward toward the already cut field.The straw bundle is thrown with the head of the stock in front while the tip of the straw is caught by the needle 13 that has returned. The plant falls onto the field with its base facing down.

As mentioned above, the present invention has a nodule on one side of the focusing chamber.
A transmission case is provided for driving a packer, a needle, and a discharge arm, and the needle is configured to bypass the tip side of the collected waste straw and receive the ear side;
The discharge arm is positioned below the needle and faces the lower surface of the stock side of the collected waste straw, and is configured to remove knots and release straw bundles while rotating upward, so that the stock side of the waste straw is lower than the ear side during collection. Since it is received at a low position, it is possible to align the base of the stock well and focus it.

In addition, the discharging arm lifts up and rotates while cutting and discharging the straw bundles, so that the straw bundles, despite their own weight, are placed in front of the stock base, and are ejected in a nearly horizontal direction, falling from the stock base in an orderly manner. Can be placed in a falling position.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Fig. 1 is a plan view, Fig. 2 is a rear view, Fig. 3 is a side view, Fig. 4 a is a developed view of the transmission, b is a side view of the knot, Fig. 5 is a rear view of the main part, FIG. 6 is an improved perspective view. 6... Transmission case, 7... Focusing section, 11... Packer, 13... Needle, 14... Rotating clutch, 26... Discharging arm.

Claims (1)

[Scope of utility model registration request] A transmission case for driving a knotter, a packer, a needle, and a discharge arm is provided on one side of the collection chamber, and the needle is configured to bypass the tip side of the collected straw to receive the ear side, and the discharge arm is A tying device for a combine harvester, characterized in that it is configured to remove knots and release straw bundles while rotating upwardly facing the lower surface of the collected waste straw on the stock side below the needle.