JPH0424910Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a binding device for a combine harvester that binds waste straw discharged from a threshing device and discharges it to the side.

(b) Conventional technology Conventionally, a binding device for a combine harvester that binds waste straw discharged from a threshing device with a binding device and discharges it diagonally backward toward the harvested field, when releasing the bundle, the bundling device binds the straw discharged from the threshing device and The straw bundle was rotated by throwing the stock end backwards with a release arm while blocking it with a resistance rod.

(c) Problems to be solved by the invention In the known binding device for combine harvesters, the distance between the discharge arm and the resistance rod is approximately constant, so if the straw is a short culm, the resistance rod receives the ear side. When the straw is stopped, the discharge arm locks the straw bundle closer to the plant base and releases it, so it turns relatively well, but in the case of long culms, the discharge arm locks the middle part and releases it.
The soft side of the ear came off the resistance rod and hardly turned, and was ejected backwards and was damaged by being stepped on by the traveling device during the next reaping process, which became an impediment to the utilization of straw.

(d) Means for solving the problems The present invention provides a combine harvester in which a bundling device is attached to the straw discharge side of the threshing device, in which the bundler of the bundling device is composed of at least a stock side arm and a ear side arm. , connecting the ear side arm to the packer shaft so that it is in the focusing part when the discharge arm operates to discharge;
At a position opposite to the ear side arm that performs the raking operation,
A guide arm is provided that closes the discharge passage in conjunction with the discharge operation of the discharge arm, and the guide arm and the ear side arm are interlocked so as to sandwich the ear side of the straw bundle when the bundle is discharged. According to
When releasing the straw bundles, the guide arm interlocking with the discharge arm receives the ears, and the ear side arm of the packer is activated to create a clamping state, and from this state, the straw bundles are rotated and released, regardless of the culm length of the straw bundles. The above-mentioned problem has been solved by making it possible to reliably turn the device and release it to a desired position.

(e) Action The waste straw discharged from the threshing device is collected by the bundler of the binding device into the collection section, and when the amount of collection reaches a predetermined amount, the needle and the knotting section are activated to bundle the straw,
The discharge arm discharges the bundled straw bundles to the rear.

At that time, the guide arm receives the ear side of the straw bundle,
The panicle side arm of the packer remains in the convergence part, and the panicle side is held between the guide arm.
In this state, the discharge arm releases the stock side, so the straw bundle reliably turns toward the harvested land side regardless of the length of the culm.

(F) Example An example of the present invention will be explained with reference to the drawings.
Reference numeral 1 denotes a threshing device mounted on one side of a machine base 3 having a traveling device 2, and a disk-shaped cutter 4 and a binding device 5 are attached to the rear of the threshing device. A bundler 8 and a needle are provided at the lower part of the section 7, and a knot section in which a bill and a holder are surrounded by a knot guide 9 and a release arm 10 are provided at the upper part. The blade shaft 12 is driven through a chain 13, and the chain 13 has an arcuate spring rod 1.
5 makes me nervous.

The bush car 8 is composed of a plant side arm 18 and a panicle side arm 19 whose bases are connected to a fulcrum shaft 17 by links 16a and 16b, respectively, and which face the nodule. The stock side arm 18 is rotatably connected to an arm 21 protruding from the Patscar shaft 20, and the intermediate portion of the arm 18 on the stock side is rotatably connected to the tip of an arm 22 protruding from the Patscar shaft 20. The arm 21 of the panicle side arm 19 is delayed in phase by approximately 90 degrees from the arm 22 of the stock side arm 18, as shown in FIG.

Further, as shown in FIG. 4, a guide arm 23 is provided at a portion facing the panicle side arm 19, and the base of this guide arm 23 is connected to a fulcrum shaft 26 in a holding cylinder 25 in which a nodule shaft is installed. It is rotatably supported, and its end is interlocked with the upper part of the discharge arm 10 by a swing link 28 and a link 29 supported by a fulcrum 27 of a support member 30 protruding from the tubercle frame.

In the combine harvester described above, the waste straw discharged from the culm opening of the threshing device 1 is sent backward by the waste straw conveying device 31, and is directed toward the bundling device 5 via the guide plate 32 protruding from the switching plate of the cutter 4. be discharged. The discharged straw is scraped into the front surface of the door 33 of the convergence section 7 by the packer 8, and when it reaches a predetermined amount and the one-turn clutch is engaged, the needle and knot section are actuated to knot it, and the discharge arm 10 passes through the outside of the knot guide 9 and enters the upper side of the convergence section and pushes the bundle to release the knots and throw them backwards.

At this time, the stock side arm 18 of the packer 8 separates the stock side of the waste straw and scrapes it into the converging section, and immediately after the maximum compression time has passed as shown in Fig. 5, the stock side arm 18
The panicle side arm 19 moves the converging part 7 to the place where the
The guide arm 23 enters toward the front of the straw and clearly separates the straw from the stock base to the panicle side, and the guide arm 23 moves the discharge arm 10 from the state shown in FIG. 5 to the state shown in FIG. When it is compressed to be released by pushing, it is pulled by the swinging arm 28 and enters a little forward of the door 33 in a side view, and the arm 1 on the stock side of the police car 8
8 is retracted under the guide plate 34 as shown in FIG.
0 throws the straw bundle backwards all at once while pushing down the door 33, so regardless of the culm length, the straw bundle reliably turns around the ear side and is discharged diagonally to the cut field on the side. Then, the discharge arm 10 and the guide arm 23 return from the position shown in FIG. 6 to the standby position shown in FIG. 7.

Although not shown, if a bundle conveying device is provided that moves diagonally to the side from the lower position of the discharge arm 10, the straw bundles will be thrown accurately and in a substantially constant posture to the receiving position of the bundle conveying device, resulting in a transfer error. can be prevented.

(g) Effects of the invention The present invention provides a combine harvester in which a tying device 5 is attached to the straw discharge side of the threshing device 1, in which the bundler 8 of the tying device 5 is composed of at least a stock side arm 18 and a ear side arm 19. The ear side arm 19 is connected to the packer shaft 20 so as to be in the convergence part when the discharge arm 10 performs the discharge operation, and the discharge arm 1 is connected to the packer shaft 20 at a position opposite to the ear side arm 19 that performs the scraping operation.
A guide arm 23 is provided which closes the discharge passage when the straw bundle is discharged, and the guide arm 23 and the ear side arm 19 are interlocked so as to sandwich the ear side of the straw bundle when the bundle is discharged. Therefore, when the discharge arm 10 discharges the bundle, the guide arm 23 interlocked with it enters the collecting section and receives the ear side of the straw bundle, and the ear side arm 19 of the packer 8, which interlocks with the guide arm 23, Guide arm 23
The side of the ear that is received by the grain is pinched in the front and back while being raked in opposite directions. It becomes possible to reliably turn and release the straw bundles with the discharge arm 10 in a state where an extremely narrow area is held, centering on approximately one point in a plan view, so that the discharged straw bundles are not stepped on by the traveling device or the straw bundle conveyance device. It is possible to prevent inheritance errors from occurring when transferring the information to another person.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention,
Fig. 1 is a side view of a combine with a cutter and a binding device attached to the rear of the threshing device, Fig. 2 is a plan view of the same as above, Fig. 3 is a side view of the same ear side, Fig. 4 is a rear view of the binding device, FIG. 5 is a side view showing the state where the straw bundle is most compressed by the stock side arm, FIG. 6 is a side view showing the state immediately before the bundle is released, and FIG. 7 is a side view showing the state immediately after the bundle is released. 5... Binding device, 8... Packer, 10... Release arm, 18... Stock side arm, 19... Corn side arm, 23... Guide arm.

Claims (1)

[Scope of utility model registration request] In a combine harvester in which a bundling device 5 is attached to the straw discharge side of the threshing device 1, the bundler 8 of the bundling device 5 is composed of at least a stock side arm 18 and a ear side arm 19, and the ear side arm 19 is used as a discharge arm. 10 is connected to the packer shaft 20 so as to be at the convergence part when the discharge operation is performed, and is located at a position opposite to the ear side arm 19 that performs the scraping operation, and in conjunction therewith closes the discharge passage when the discharge operation is performed. A binding device for a combine harvester, characterized in that a guide arm 23 is provided, and the guide arm 23 and the ear-side arm 19 are interlocked so as to sandwich the ear side of the straw bundle when the bundle is released.