JPS6125623Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device that collects and bundles a certain amount of waste straw that has been threshed.

Conventionally, in this type of waste straw bundling device, waste straw is collected and bundled into a certain amount while being transferred along a guide deck, and then when the waste straw is discharged from the end of the guide deck, a waste straw is attached to the guide deck. A rotary shutter is installed at the base of the straw stock, which is held in an upright position by a spring force, and can be rotated against the spring force only in the direction in which the bundled waste straw is released. The base of the waste straw is supported to prevent it from spilling in the discharge direction. However, if the spring force that holds the shutter upright is strengthened, the straw will be supported reliably, but it will create a large resistance when releasing the bundled waste straw, making it difficult to discharge smoothly and causing clogging. If the force is weakened, the bundled waste straw will be discharged smoothly, but the support of the base of the straw stock during gathering and binding will be uncertain and will cause the straw to fall off, so with conventional spring type shutters, It was not possible to achieve both smooth discharge of bundled waste straw and reliable support during gathering and binding.

In this type of waste straw bundling device, instead of using a spring type shutter, the present invention is designed to move the shutter in conjunction with a swing-type discharge arm that discharges the tied waste straw, and to swing the shutter in substantially the same trajectory as this. By configuring the device to move dynamically, the drawbacks of the conventional device have been overcome.

The embodiments shown in the drawings will be explained below. In the drawings, reference numeral 1 indicates a conventionally known self-propelled, self-removal type combine harvester body, and a cover case 2 provided at the rear thereof is connected to a feed chain (not shown) of the combine. The waste straw sent along the sloped guide decks 4 and 5 from the straw removal chain 3 is collected in an appropriate amount and tied together, and then transferred to the guide deck plates 4 and 5.
A conventionally known straw binding mechanism 6 is provided for discharging the straw backward along the top.

This straw bundling mechanism 6 includes a transmission case 7 with an L-shaped side surface, a bearing case 8 protruding from the upper side of the transmission case 7, and a knot portion attached to the tip of a knot shaft 9 pivotally supported within the bearing case 8. 10, an input shaft 11 supported parallel to the joint shaft 9 at the lower side of the transmission case 7, a converging part 14 attached to the tips of the clutch shaft 12 and the door shaft 13, and the joint part 10 includes: It is equipped with a building 15 and a holder 16 driven by a nodal shaft 9, and a pin 19 is attached to the bearing case 8.
A bracket 20 having two release arms 17 and 18 at appropriate intervals in the axial direction is rotatably connected to the tip of the pivoted link 21 with a pin 42, and a pin 42 is connected to the bracket 20 at the end of the knot shaft 9. By rotatably pivoting the tip of the fitted crank 22 with the crank pin 43, the tip of each discharge arm 17, 18 follows the trajectory shown by the two-dot chain line 23 in FIG. It is configured to swing along the axis in the direction of the arrow.

The focusing section 14 includes a packer 24 and a needle 2.
5 and a door 26, and the input shaft 11 is constantly driven to rotate by power transmission from the power source of the combine harvester. The packer 24 has a base end connected to the transmission case 7 via a curved link 27, and a crank 28 fitted to the tip of the input shaft 11.
The tip of the needle 25 is pivoted so that the rotation of the input shaft 11 causes the tip of the needle 24 to swing in the direction of the arrow along the locus shown by the two-dot chain line 29 in FIG. Its proximal end is rotatably supported on the door shaft 13, and the distal end of a crank 30 fitted on the distal end of the clutch shaft 12 is pivotally connected, and as the clutch shaft 12 rotates, the needle 2
5 moves upward toward the bill 15 at the knot 10, and binds both ends of a string (not shown) passed through the needle 25 with the bill 15, and The door 26 is fitted onto the door shaft 13 so as to protrude upward from between the guide deck plates 4 and 5.

A gear 32 that meshes with a gear 31 fitted on the input shaft 11 is rotatably fitted onto the clutch shaft 12 in the transmission case 7, and the clutch 3
3, the clutch 33 and the door shaft 13 are related to each other via a clutch interlocking mechanism 34, and when the door 26 attached to the door shaft 13 rotates rearward, the clutch 33 is moved by the action of the clutch interlocking mechanism 34. When the clutch shaft 13 engages with the idler gear 32, the clutch shaft 13 starts to rotate, and when the clutch shaft 13 rotates once, the clutch 33 and the idler gear 32 are connected by the clutch interlocking mechanism 34.
The rotation of the clutch shaft 12 is stopped when the clutch shaft 12 is automatically disengaged from the clutch shaft 1.
The chain 38 is transmitted from the sprocket 35 fitted on the clutch shaft 2 to the sprocket 37 of the intermediate shaft 36, and the chain 41 is transmitted from the sprocket 39 of the intermediate shaft 36 to the sprocket 40 on the connecting shaft 9, so that the clutch shaft 12 rotates once. At the same time, the knot shaft 9 rotates once and stops.

The crank pin 43 of the crank 22 is extended in the direction of the straw stock, and an arm 44 is fitted thereto in a non-rotatable manner. A pin 46 having a center is installed at the top, and the middle part of the shutter rod 47 is rotatably connected to the pin 46, while the base end pin 19 of the link 21 is also extended in the direction of the straw stock. The base end of a link 48 having approximately the same length as the link 21 is pivotally connected to the pin 49, and the tip of the link 48 and the upper end of the shutter rod 47 are pivotally connected by a pin 49. of,
By making the distance approximately equal to the distance from the crank pin 43 to the pin 42, the tip of the shutter rod 47 follows the swinging movement trajectory 2 of the tip of the discharge arm 18.
While configured to perform rocking motion in the same direction as 3,
Connect the tip of the shutter rod 47 to the discharge arm 1.
In other words, the phase is set so that when the guide deck plates 7 and 18 are in a raised position with respect to the guide deck plates 4 and 5, they are closest to the guide deck plate 5, and the swinging motion is performed while maintaining this phase relationship. The shutter rod 47 is configured to swing with a phase delay of 180 degrees with respect to the swing movement of the discharge arms 17 and 18.

In this configuration, the straw sent out from the straw removal chain 3 to both guide deck plates 4 and 5 is transferred to the input shaft 1.
Due to the swinging movement of the locus 29 of the packer 24 due to the rotation of 1, the straw is successively focused on the front surface of the door 26. By repeating this, the amount of collected waste straw on the front surface of the door 26 increases, and when a predetermined amount is reached, the straw is focused on the front surface of the door 26. 24
rotates the door 26 rearward via the converging straw, and the rotation of the door shaft 13 to which the door 26 is attached causes the clutch 33 and the idler gear 32 to engage with each other by the clutch interlocking mechanism 34. While the clutch shaft 12 begins to rotate, the door 26 further rotates backwards and is retracted from the deck plates 4 and 5. Due to this rotation of the clutch shaft 12, the knot shaft 9 also begins to rotate, and the needle 25 closes the clutch. As the shaft 12 rotates, the string is moved upward toward the building 15, and the string is passed through the collecting straw, and then the string is tied at both ends by the building 15, and the string is tied. During this bundling, the discharge arms 17 and 18 move backward along the trajectory 23, and when the bundling is completed, they move forward, thereby discharging the tied waste straw onto both deck plates 4 and 5.
It is emitted backward along the .

When converging the waste straw by the packer 24,
Each discharge arm 17, 18 is in a raised position as shown by the solid line in FIG.
Since the lower end of the straw is in a lowered position close to the deck plate 5, the base of the waste straw comes into contact with the shutter rod 47 and is held in the position of convergence and bundling, and the shutter rod 47 keeps the amount of convergence constant. Since the nodule shaft 9 remains stationary until it reaches this point and starts rotating, the base of the straw stock can be reliably supported, and the distance from the pin 46 to the pin 49 in the shutter rod 47 is The length of the link 48 is approximately equal to the distance from the crank pin 43 to the pin 42, and the length of the link 21 is approximately equal to the distance from the crank pin 43 to the pin 42.
, and pin 46 is substantially equal to crank pin 43.
The lower end of the shutter rod 47 swings in the same direction as the movement trajectory 23 of the ejection arm, with an appropriate phase delay from the ejection arm, and the ejection arm retreats. When the bundled waste straw is then discharged by moving forward, the shutter rod 47 is at a position higher than the deck plate, so that the shutter rod 47 does not touch the bundled waste straw that is being discharged, and provides resistance to the discharge of the bundled waste straw. There is no.

Therefore, according to the present invention, when converging and bundling waste straw, it is possible to reliably achieve both reliable support during convergence and bundling and smooth release of the bundled waste straw.

[Brief explanation of the drawing]

The drawings show a device according to an embodiment of the present invention; FIG. 1 is a side view of the device, FIG. 2 is a side view of FIG. 1, FIG. 3 is an enlarged sectional view of FIG. 1, and FIG. 3 is a cross-sectional view taken from the side in FIG. 3. FIG. 1... Combine main body, 6... Straw removal bundling mechanism,
4, 5... Guide deck plate, 10... Nodule, 1
4... Focusing section, 17, 18... Ejection arm, 24
...Patrol car, 25...Needle, 26...Door, 47...Shutter rod.

Claims (1)

[Scope of utility model registration request] On one side with a guide deck plate for straw removal, there is provided a nodule part and a discharging arm with swinging movement for the nodule removal straw, and on the other side with the guide deck plate, a packer, a needle, and a door are provided, and the door can be rotated. In the straw tying machine, a clutch for transmitting power to the knotting part and the drive shaft of the discharge arm is inserted to perform the tying action, and on one side with the guide deck plate in between, there is a clutch for transmitting power to the drive shaft of the discharge arm. Therefore, a shutter rod that is driven to swing in the same direction as the discharge arm is disposed at a position closer to the straw removal stock than the discharge arm and the door, and the swing movement of the shutter rod is A straw removal bundling device characterized by being configured to have a phase lag with respect to the swinging movement of the discharge arm so that when the discharge arm is in a position away from the guide deck plate, the shutter rod is in a position close to the guide deck plate. .