JPS63219315A - Grain straw bundling apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a culm bundling device that is disposed in a straw conveying path of a combine harvester and binds and discharges culms.

(b) Prior Art A conventional culm binding device was constructed as shown in FIG. 7.

That is, the overall configuration was U-shaped when viewed from the rear, and the long shell culm passed through the U-shape.

Therefore, it is necessary to increase the depth of the U-shape, and the length of the binding mission case M', lower transmission vibro 3, chain case 60, upper transmission vibro 1, etc. is increased according to the length of the culm.
There was a tendency to

The packer 66 and needle 64 were driven from the binding mission case M' side, and the discharge rod 62 and the knot building, string holder, etc. in the knot frame 65 were driven from the upper transmission vibro 1 side. Therefore, the mission case parts are arranged one above the other, and it is necessary to accurately determine the positional relationship between the parts that rotate from above and below, so the mission case, transmission pipe, chain case, etc. need to be constructed robustly. There was.

For these reasons, the assembly cost was high and the shell culm binding device was heavier than necessary.

(c) Problems to be Solved by the Invention The purpose of the present invention is to solve the problems of the conventional technology. First, the transmission case, which was divided into upper and lower parts, is combined into one side, and the packer 3, needle 1, and discharge rod are separated. 2, clutch door 7, etc., are all driven from one side of the shell culm conveyance passage.

As a result, only one mission case is required,
Since there is no need for a U-shaped configuration when viewed from the rear, configurations such as a chain case and a transmission vibrator can also be omitted, making it possible to reduce weight and cost.

(d) Means for Solving the Problems The objects of the present invention are as described above. Next, the configuration for achieving the objects will be explained.

A U-shaped binding mission case M with an upward opening is arranged below the grain culm passage, the concave portion is used as a binding space P, and a discharge rod 2 that rotates and passes upward through the binding space P is provided. A needle 1 is provided on the same axis as the rod 2, and the needle 1 is reciprocated to the opposite side of the binding space P between the knot building 5 and the string holder 6.
It is configured with a ■-shaped groove 1a that engages the string a.

(e) Function of the invention Since the present invention is configured as described above, the intake guide 4
The backer 3 scrapes the husks conveyed from the threshing device into the binding space P along the sections 6 and 47.

When a certain number of shell culms are pushed into the bundling space P, the clutch door 7 is pushed and the knotting clutch is activated, and the needle 1, which is in the standby position 1 in Fig. 2, is first moved to the 1'' position. Rotate, and at that time hold the string a in the ■-shaped groove 1a,
The cord is transported to the area between the knot building 5 and the string holder 6, and the other end of the string a, which was previously held by the string holder 6, is moved over the knot building 5 to perform the knotting work. After knotting, the next end of the string a is held by the string holder 6, and the cutting edge of the string holder 6 cuts the end of the string after this knotting.

After that, the needle l largely retreats to the 1° position, and along with this, the discharge rod 2 starts making one rotation in the direction of the arrow, springing the waste straw bundle A in the bundling space P upward, and the discharge rod 2 It stops at the standby position shown in FIG.

The needle 1 also returns to its original standby position at the end of the rotation of the discharge rod 2.

When retracting the needle 1 to the 1° position, follow the conventional method (
The needle 1 should not pull the string a (the string a should be placed in the proper sewing position by the string holding devices 48a and 48b, and in a position where the discharge rod 2 can pass the straw bundle A). When the needle 1 returns to the 1 position, the string a is inserted into the ■-shaped groove 1a.

(~) Embodiment The object, structure, and operation of the present invention are as described above. Next, the structure of the embodiment shown in the attached drawings will be explained.

Fig. 1 is an overall perspective view of the shell culm binding device of the present invention, Fig. 2 is an overall side view as well, Fig. 3 is a rear sectional view of the binding mission case M, and Fig. 4 is a needle/discharge rod shaft 11 and a clutch shaft. FIG. 5 is an enlarged rear sectional view of the portion 12, FIG. 5 is an enlarged side sectional view, FIG. 6 is a plan view of the tip of the needle 1, and FIG. 7 is a rear view of a conventional culm binding device.

The overall structure of the culm binding device of the present invention will be explained with reference to FIGS. 1 and 2.

The straw threshed by the threshing device mounted on the combine passes through the grain culm passage constructed on the intake guides 46 and 47 and the knot frame 4, and is scraped into the recess of the U-shaped binding mission case M. It will be absorbed.

The packer 3 performs the action of raking in the waste straw. The lower end of the backer 3 is pivotally supported on the wall surface of the binding mission case M by a driven arm 15, and the bunker 3
The middle part of the blade is rotated by the backer drive crank 14 to draw an elongated raking locus as shown in FIG.

Further, the knot frame 4 is constructed integrally with the binding mission case M, and a knot part formed by the knot building 5 and the string holder 6 is formed in the portion surrounded by the knot frame 4.

Further, the clutch door 7 protrudes from the door shaft 9 into the binding space P formed in the recess of the binding mission case M. When the straw placed on the clutch door 7 is pressed by the backer 3 and gradually backed, the clutch door 7 finally rotates and the knotting clutch is turned on.

Further, the ejection rod 2 and the needle 1 are arranged on the needle/ejection rod shaft 11 on the same axis, and before reaching the needle/ejection rod shaft 11, the clutch shaft 12 and the clutch lever shaft 13 are arranged. It is being done.

Between the clutch shaft 12 and the clutch lever shaft 13, a knotting clutch device, which has been conventionally used in shell culm binding devices, is constructed.

In the conventional technique, the string a was inserted through the string hole provided in the needle 1, so it did not come off the needle 1, but in the case of the present invention, the string a was inserted into the string hole provided in the needle 1, but in the case of the present invention, the string a was inserted into the string hole provided in the needle 1, so it did not come off from the needle 1. Therefore, if the string a is stretched after tying, the ejection rod 2 will not be able to spring out.
The string a and the needle 1 are made separable.

Therefore, the string a is held in a fixed position between the string holding devices 48a and 48b, and when the discharge rod 2 releases the needle 1, the needle 1 retreats to the 1'' position, and the distance between the string a and the needle 1 is It's opening up a gap.

1 The needle 1 rotates to the 1" position in Fig. 2 when the clutch door 7 is turned on and performs the locking action, and when the release rod 2 rotates and performs the release action, it rotates to the 1" position. The string a is finally engaged in the V-shaped groove 1a, and at position 1, which is ready for the next knotting operation, it waits for backing by the backer 3.

The needle 1 is equipped with a string roller 49 to improve the sliding condition with the string a, and the needle 1 is equipped with a string roller 49 to improve the sliding condition with the string a. The structure is such that the string a will not be torn off due to frictional resistance when the string a is rotated up to a certain point.

As shown in FIG. 1, the waste straw is scraped into the bundling space P from above by the bunker 3, and after the bundling action is completed, it is thrown upward by the discharge rod 2 and released.

Next, the drive structure inside the binding mission case M will be explained with reference to FIGS. 3, 4, and 5.

In the binding mission case M, five shafts are arranged as main shafts.

Human power/backer shaft 10, needle/discharge rod shaft 11 and 1
．． They are a clutch shaft 12, a clutch lever shaft 13, and a door shaft 9. In addition, as shown in FIG. 2, a chain tensioning shaft 45, which pivotally supports chain tensioning rollers 45, is separately arranged.

In FIG. 3, explanation will be given along the power transmission system.

Power from the prime mover is transmitted to the input/packer shaft 10 by a belt or the like.

The input/packer shaft 10 also serves as a drive shaft for the bunker 3. A backer drive crank 14 is fixed at the tip of the input/packer shaft 10, and the backer driven arm 1
The middle part of the backer 3 whose end is supported by the backer 3 is rotated by the backer drive crank 14, and the entire second
As shown in the figure, a long elliptical rotation locus is drawn.

A sprocket 16 fixed to the input/packer shaft 10
A chain 22 is wound around the clutch lever shaft 13, and power is transmitted from the chain 22 to a loosely fitted sprocket 20 on the clutch lever shaft 13 via a chain tensioning sprocket 25 on the door shaft 9 and a chain tensioning roller 45. . The loose-fit sprocket 20 is integrated with a loose-fit gear 30, and the loose-fit gear 30 is always engaged with a loose-fit gear 31 on the clutch shaft 12.

A clutch pin drive side 32 of the coupling clutch device protrudes above the loosely fitted gear 31, and the clutch pin drive side 32 is constantly rotating, and when the clutch door 7 is turned on, the fixed rotation It engages with the clutch pin driven side 33 of the body 34 to rotate the fixed rotating body 34 by one revolution.

In the knotting clutch device, the clutch door 7 acts as a sensor, and when the clutch door 7 detects that the amount of straw discharged in the binding space P has exceeded a certain level by the pressing force from the straw discharged, the clutch door 7 acts as a sensor. The door 7 gradually rotates, and the door shaft 9 and arm 27 also rotate. The rotation of the arm 27 causes the arm 28 loosely fitted on the clutch lever shaft 13 to rotate, thereby causing the integrated arm 70 to rotate. As the arm 70 rotates, the clutch pin driven side 33 moves to a position where it engages with the clutch pin driving side 32, and is rotated once by the clutch pin driving side 32 to perform the knot release operation. After one rotation, the clutch door 7 returns to its original position.

The fixed rotating body 34 is rotated by the rotation of the clutch pin driven side 33.
rotates, and the power is branched from the fixed rotating body 34 to drive the needle 1, the knot building 5, and the discharge rod 2 in three directions.

First, in the drive path of the needle 1, a partially toothed gear 38 integrated with a fixed rotating body 34 meshes with a loosely fitted gear 37 on the clutch lever shaft 13. The loosely fitted gear 37 is fixed to the clutch lever shaft 13 together with the fixed sprocket 21, and the fixed sprocket 21 is connected to the knot building 5.
and the input/backer shaft 10 which is the drive system for the string holder 6.
The power is transmitted to the loosely fitted sprocket 17 on top of the sprocket.

Further, the power rotated intermittently by the loosely fitted gear 37 is transmitted to the clutch lever shaft 13.
From the upper arm 42, the arm 4 is connected via the interlocking link 41.
0 and from the arm 40 to the clutch shaft 12.

As shown in FIGS. 5 and 6, the toothless gear 38 is composed of a toothless portion 38a with half of the circumference chipped and a gold toothed portion 38b with teeth around the entire circumference. The part 38a is configured to rotate the discharge rod 2 in a timely manner within about half of the time during which the needle 1 is rotating.

Further, due to the full-toothed portion 38b, the loosely fitted gear 37 rotates once when the engagement clutch is turned on.

When the crosspiece surface of the partially toothed gear 38 rotates downward in FIG. 3, the rotation of the fixed gear 44 for the discharge rod 2 on the opposite side is stopped by the stopper 36, and It is held in the standby position.

When the partially toothed gear 38 rotates once, the loosely fitted gear 37
rotates once, and this rotation results in reciprocating rotation of the clutch shaft 12 via the clutch lever shaft 13.

That is, one rotation of the loosely fitted gear 37 causes the clutch lever shaft 1 to
3 rotates once, and arm 42 rotates once.

Since the arm 42 is configured to be shorter than the arm 40, the arm 40 cannot rotate once, and the arm 42
One rotation of the arm 40 rotates the arm 40 in a fan shape of about 120 degrees, and this fan-shaped rotation is transmitted to the clutch shaft 12 and rotates the gear 39 fixed on the clutch shaft 12 in the same fan shape of 120 degrees. Let it happen.

And the needle/discharge rod shaft 1 meshed with the fixed gear 39
Since the loosely fitted gear 43 on the top of 1 is configured to have a ratio of approximately 2:1, the loosely fitted gear 43 rotates approximately 240 degrees.

The 240 degree rotation of the loose fit gear 43 replaces the 240 degree rotation of the needle 1 loosely fitted and supported on the needle/discharge rod shaft 11.

When the needle 1 rotates 240 degrees, the toothless gear 38 and the fixed gear 44 are engaged with each other at the same timing, and the toothless gear 38 has a 180 degree cross section that is 2:1. The configured fixed gear 44 is rotated once, and when the needle 1 is exactly retreated to the position 1' in FIG. 2, the needle/discharge rod shaft 11 to which the fixed gear 44 is fixed is rotated once. The discharge rod 2 rotates, and the culm bundle A in the bundling space P is thrown up and discharged.

As shown in FIGS. 4 and 5, the partially toothed gear 38 is
It is composed of a toothless part 38a and a full-toothed part 38b, and the toothless part 38a meshes with the fixed gear 44 by 180 degrees at the crosspiece surface, and the rotation is stopped by 180 degrees at the other toothless part. However, the stop position is maintained by the stopper 36.

Further, the gold tooth portion 38b meshes with the loose fit gear 37 around the entire circumference, and one rotation of the partially toothed gear 38 is transmitted to one rotation of the loose fit gear 37.

Next, the knot building 5 and the string holder 6 are driven by the loosely fitted gear 3.
7, the loosely fitted sprocket 23 on the input/packer shaft 10 is driven by the fixed sprocket 21 via the chain 23, chain tension roller 45, and chain tension sprocket 26. The rotation of the loose fitting sprocket 23 causes the knotted bevel gear 18 to rotate once, thereby rotating the intermittent drive bevel gear 19 of the knotted building 5 and the intermittent drive bevel gear of the other string holder 6. By rotating the knot building 5 and the string holder 6 in a timely manner, the two strings a conveyed by the needle 1 and the string end held in the string holder 6 during the previous tying are taken and the knot is removed. Do it. After tying, when the tying string is discharged by the release rod 2, the end of the current tying string is pulled off from the string holder 6, and only the end of the tying string for the next tying is left in the string holder 6.

(G) Effects of the Invention Since the present invention is configured as described above, it has the following effects.

First, unlike the conventional shell culm bundling device shown in Fig. 7, there is no need to arrange the bundling mission case M above and below, but by arranging the bundling mission case M only on one side of the shell culm conveyance path. Since it can be configured, a sturdy support part is no longer required, the weight can be reduced, and the culm binding device as a whole can be made smaller.

Second, unlike in the past, there are no upper and lower transmission pipes or chain case parts that connect the upper and lower binding transmission cases, so there is no chance of the shell culm passing through these parts getting stuck or getting caught. There is no longer any dust accumulation, and the culms are no longer disturbed in their posture.

Thirdly, since the string a and the needle 1 are not engaged through the string hole, there is no need to pass the string a through the needle 1, which was done in conventional culm tying devices, and the string at the start of the work is This makes setting work easier.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view of the shell culm binding device of the present invention, Fig. 2 is an overall side view, Fig. 3 is a rear sectional view of the binding mission case M, and Fig. 4 is a needle/discharge rod shaft 11 and clutch. FIG. 5 is an enlarged rear sectional view of the shaft 12, FIG. 5 is an enlarged side sectional view, FIG. 6 is a plan view of the tip of the needle 1, and FIG. 7 is a rear view of a conventional culm binding device. A... Straw bundle a... String M... Binding mision case... Needle 2... Discharge rod 3... Packer

Claims (1)

[Claims] A ■-shaped bundling mission case M with an upward opening is arranged below the grain culm passage, the concave portion is used as a bundling space P, and a discharge rod 2 that rotates and passes through the bundling space P upward is provided. A needle 1 is provided on the same axis as the rod 2, and the needle 1 is reciprocated to the opposite side of the binding space P between the knot building 5 and the string holder 6.
A grain culm binding device characterized by comprising a V-shaped groove 1a that engages a string a.