JPH08837Y2 - Binding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a binding device for binding straw such as combine.

[Prior art]

The binding device for binding the straw or the binding device for binding the cut grain culm is provided with a needle, a door, etc. on one side of the binding path and a bill, a holder on the other side. As shown in the figure, the conventional binding device is
An input shaft 5 is provided in a clutch case 4 having a needle 2 and a door 3, and the transmission mechanism in the clutch case 4 is driven by driving the input shaft 5 from a drive shaft (not shown).

Further, a sprocket 12 fixed to the shaft end of the transmission shaft 7 that supports the one-turn clutch 6 and a sprocket fixed to the shaft end of the transmission shaft 11 provided on the side of the transmission case 10 that houses the transmission mechanism of the building 8 and the string holder 9. A transmission chain 14 is wound between the transmission chain 13 and the transmission chain 14, and the transmission chain 14 is covered with a chain case 15. After all, from the transmission mechanism including the one-turn clutch 6 on the needle 2 side, the transmission shaft 7 and the transmission shaft 7 are transmitted. Chain 14, transmission shaft 11
The structure requires a gate type transmission mechanism 16 for driving the transmission mechanism on the side of the building 8 via the.

[Problems to be solved by the invention]

However, the above-mentioned conventional bundling device operates the one-rotation clutch 6 to cause the needle 2 portion, the transmission shaft 7, and the transmission chain to move.
14, the transmission shaft 11 and the knots such as the building 8 and the string holder 9 are started and stopped all at once, so that the starting load and each started part are stopped by one rotation against the inertial force. The load is extremely large, a large impact force is applied to the one-rotation clutch 6 to deteriorate its durability, and the vibration noise at the time of starting and stopping is large. Moreover, the above-mentioned conventional one requires a portal-type one-rotation transmission mechanism for driving the transmission shaft 7 on the side of the knot from the transmission shaft 7 on the side of the needle 2, so that the entire structure becomes large and compact. There was a drawback that I could not.

Therefore, the present invention has been made in view of the above-mentioned conventional circumstances with the object of solving the problems.

[Means for solving problems]

In order to achieve the above object, the present invention has a needle 37 on one side and a knot consisting of a building 41, a holder 43, etc. on the other side across the binding passage K, and a door 36 is provided behind the binding passage K. In the binding device described above, the needle 37 and the knotting portion are configured to be driven to rotate once through the constant rotation input shafts 51 and 52 and the rotation clutch mechanisms 44 and 47, which are specially provided in the transmission mechanisms of both. At the same time, the interlocking means for interlocking the one-rotation clutch mechanism 44 on the needle 37 side with the door 36 and operating the one-rotation clutch mechanism 47 on the knot side in conjunction with the operation of the one-rotation clutch mechanism 44 on the needle 37 side. Is provided.

[Action]

When a certain amount of grain culms are gathered in the bundling passage K, the door 36 is opened.
The one-turn clutch mechanism 44 on the side of the needle 37 that is ON-operated and interlocked with the door 36 is actuated, and the rotation of the rotary input shaft 51 is transmitted to the needle 37 at all times to drive the needle 37. At the same time, when the one-rotation clutch mechanism 44 is actuated, the one-rotation clutch mechanism 47 on the node side is interlocked by the interlocking means (Bowden wire 50 in the embodiment), and the rotation of the constantly rotating input shaft 52 is transmitted to the node. Drives one revolution.

In the above operation, the one-rotation clutch mechanism 44 controls the power connection and disconnection only on the needle 37 side, and the one-rotation clutch mechanism 47 controls the power connection and disconnection only on the knot side. Is a single-turn clutch mechanism
Therefore, the impact force on the one-rotation clutch mechanism 44, 47 is alleviated and the durability thereof is improved, and the vibration noise at the time of starting and stopping is reduced.

In addition, a gate-type single-rotation transmission mechanism for driving the knotted portion side from the needle 37 side is not required, and a bundling device having a compact structure is realized.

〔Example〕

Hereinafter, the drawings showing the present invention as an embodiment will be described.

As shown in FIGS. 1 and 2, in the combine C, a horizontal machine base 22 is disposed on the crawlers 21 provided on the left and right, and a thresher 23 is mounted on the machine body side above the machine base 22. Has been done. The threshing machine 23 is provided with a handling cylinder 24 that rotates around a handling cylinder axis 24a in a direction along the traveling direction of the machine body and is planted with a handling tooth 24b, and a feeding chain 26 and a feeding chain 26 are provided on the front surface of the handling cylinder 24. A grain culm sandwiching and conveying mechanism 25 including a sandwiching rail 27 is provided,
The tip of the grain culm whose grain is clamped by the grain culm sandwiching and conveying mechanism 25 is threshed by the handling barrel 24 while being conveyed from the starting end side to the terminating side.

On the front side of the thresher 23, a pretreatment mechanism (not shown) for cutting up the napped culms and for transferring the cut culm to the starting end side of the grain-sandwiching and conveying mechanism 25 is provided.
At the end of the grain-culm sandwiching and conveying mechanism 25, the straw conveying mechanism 29 that continuously conveys the straw that has been threshed by the threshing machine 23 and conveys it to the rear side.
Is connected to the beginning side of.

The straw transport mechanism 29 is composed of a straw chain 31 for sandwiching and transporting the root side of the straw, and a straw rail 32 arranged below the straw chain 31, and the straw rail 32. Is arranged opposite to the straw chain 31 so that the straw from the feed chain 26 can be released upward. This straw transport mechanism 29
A cutting device 30 that cuts straw and sprays it on the field by switching a switching valve (not shown) is provided below
The threshed straw is cut by the cutter device 30 in the unbound state when the switching valve is switched to the supply position, but when the switching valve is switched to the binding position, the straw is bundled in a predetermined amount by the binding device 35 described later. And is discharged outside the machine by the straw conveying mechanism 29.

A tying device 35 having a tying passage K for tying the threshed straw is arranged on the terminal side of the grain-culm sandwiching and conveying mechanism 25. The tying device 35 is configured as follows. ing.

That is, the binding passage K is provided on the terminal side of the grain-culm sandwiching and conveying mechanism 25.
A clutch case 33, which has a transmission portion that is transmitted from a constantly rotating input shaft 51 that drives the needle 37 side, is disposed below the binding passage K. The needle drive shaft 45 rotatably supported in the clutch case 33 is provided with a single-rotation clutch mechanism 44 on the needle side similar to the conventional one, and the case 33 of the door shaft 34 supported by the clutch case 33 is A door 36 located behind the bundling passage K is fixed to a portion that also projects outward.
Is an upright position that closes the rear of the binding passage K when the one-rotation clutch mechanism 44 is inactive around the door shaft 14, and turns to the collapsed state when the straw reaches a predetermined pressure and the binding passage K is rotated.
Is connected to the one-rotation clutch mechanism 44 so that the one-rotation clutch mechanism 44 operates at the same time when the rear side of the vehicle is opened.

When the one-rotation clutch mechanism 44 on the needle side operates, the needle 37 also operates, and as described later, the bill 41 and the holder 43 are interlocked with the operation of the one-rotation clutch mechanism 44.
The one-rotation clutch mechanism 47 of the knotted portion is operated to bind the straw in the binding passage K with a binding string (not shown) to bind the straw to a predetermined size. An intermediate portion of a needle 37 that winds a string around the binding bundle in the binding passage K is pivotally supported, and the base end of the needle 37 is the door shaft 34.
It is fixed to.

The notch guide 39 is provided above the bundling passage K.
The notch guide 39 has a building 41 on the front side.
A gear case 46 that pivotally supports the rear side holder 43 is fixed. Reference numeral 52 denotes a constant rotation input shaft that is driven toward the knotted portion of the building 41, the holder 43, and the like, and the power is transmitted from the constant rotation input shaft 52 to the transmission portion incorporated in the gear case 46. The cam shaft 49 rotatably supported in the gear case 46 is provided with the one-turn clutch mechanism 47 on the knot side, and the building 41 and the holder 43 are intermittently driven by the one-turn clutch mechanism 47. .

That is, the needle-side single-rotation clutch mechanism 47 and the building-side single-rotation clutch mechanism 44 are interlockingly connected by the interlocking means by the Bowden wire 50. In conjunction with this, the one-turn clutch mechanism 47 on the knot side operates, and the building 41 and the holder 43 operate.
Although 47 and 47 may be interlockingly connected at the same time as in the conventional case, the operation start timing (ON) of the one-side rotation clutch mechanism 47 on the node side is slightly later than that of the one- rotation clutch mechanism 44 on the needle side. It is desirable to configure it as follows. As a result, the needle-side single-rotation clutch mechanism 44 is activated, and then the knot-side single-rotation clutch mechanism 47 is activated.

As shown in detail in FIGS. 5A and 5B, the gear 62 is attached to the cam shaft 49 rotatably supported in the gear case 46.
Is rotatably positioned, the gear 62 is driven by a gear 52c that is fixed to the constant rotation input shaft 52, and the drive arm 64 fixed to the cam shaft 49 is on the right side (upper side in the figure) of the gear 62.
And an actuating arm 64 disposed on the right side of the arm 63 and rotatably positioned on the cam shaft 49. The actuating arm 64 has a protrusion 64a located rearward in the rotational direction,
A tapered concave hole 64b located on the side surface facing the drive arm 63 side, and a mounting hole 64c into which one end of a torsion spring 66 described later is fitted and locked are respectively provided.

Further, in the drive arm 63, the recessed hole 64b and the projection claw 62a protruding from the gear 62 are connected to the operating state and the non-connecting state, and a mounting hole for guiding and supporting the operating pin 65. 65
a is provided, and the tapered portion 65a of the operating pin 65 is fitted in the tapered recessed hole 64b.

In addition, a torsion spring 66 wound around the boss of the drive arm 63
Has one end locked to the mounting hole 64c of the operation arm 64 and the other end locked to the drive arm 63 side. A left end portion 67a of a stopper pin 67 slidably inserted in the gear case 46 in the left-right direction (vertical direction in the drawing) is locked to the protrusion 64a of the operating arm 64. , Its left end 67a is always urged by the spring 69 in the direction of contacting the protrusion 64a, so that the positions of both arms 63 and 64 are held by the stopper pin 67, and the one-rotation clutch mechanism on the needle side. It will not rotate unless 44 is activated.

On the other hand, since the interlocking arm 70 is fixed to the needle drive shaft 45, and the other end of the Bowden wire 50, one end of which is pivotally connected to the interlocking arm 70, is connected to the stopper pin 67, the needle side one-turn clutch mechanism. When 44 operates and the needle drive shaft 45 rotates, the interlocking arm 70 rotates accordingly and the Bowden wire 50 is pulled,
The stopper pin 67 moves to the right, and its left end 67a is disengaged from the protrusion 64a, and the regulation arm is released.
Is slightly rotated in the X direction by the biasing force of the torsion spring 66 (initial rotation).

The initial rotation of the operating arm 64 causes a tapered concave hole.
The tapered portion of the operating pin 65 is removed from the 64b, the operating pin 65 is pushed out in the Y direction, and the operating pin 65 engages with the projection claw 62a. Therefore, the one-rotation clutch composed of the gear 62, the operating arm 64, and the drive arm 63. The mechanism 47 rotates, the bill 41 and the holder 43 operate, and the needle 37 binds the binding string.

When the interlocking arm 70 of the needle drive shaft 45 makes one full turn, the Bowden wire 50 becomes loose again and the stopper pin 67 causes the spring 69 to move.
It moves to the left with the urging force of
Stop the rotation of the operating arm 64 by contacting the left end 67a of
The tapered portion 65a of the operating pin 65 is fitted into the recessed hole 64b, the engagement between the operating pin 65 and the protruding claw 62a is released, and the drive arm 63,
The actuating arm 64 is held in the non-actuated position. The Bowden wire 50 has an inverted U-shaped middle portion, and a transmission case described later so as to bypass the binding passage K.
A transport passage H is formed along 54a and 56a, through which the tip side of the culm passes.

The constantly rotating input shaft 51 for driving the needle 37 side is arranged in parallel below the conveying passage H, and the always rotating input shaft 52 for driving the knot side is arranged in parallel above the conveying passage H. As described above, the constant rotation input shaft 51
Drive the transmission part to the needle 37 installed in the clutch case 33, and the continuous rotation input shaft 52 drives the transmission case 46.
The transmission part for driving to the knotted part installed inside is driven, but both of the constantly rotating input shafts 51 and 52 are configured so as to also serve as drive shafts of the feed chain 26 and the straw chain 31, respectively.

That is, the constant rotation input shaft 51 is rotatably supported in the transmission case 54 arranged in parallel with the outlet side plate 53 of the thresher 23, and the transmission case 54 is left and right in the right side case 54a and the left side case 54b. In addition to being formed separately on both sides, the flanges provided on the intermediate side end portions thereof are fixed to the left and right sides of the clutch case 33, respectively, and the flange provided on the right side end portion of the right case 54a is fixed to the right side plate 55. A sprocket 26a for driving the feed chain 26 is fixed to the left shaft end of the constant rotation input shaft 51.

Also, the constant rotation input shaft 52 is rotatably supported in the transmission case 56.
56a and the left side case 56b are separately formed on the left and right sides, and flanges provided on the intermediate side end portions thereof are fixed on the left and right sides of the transmission case 46, respectively, and a flange provided on the right side end portion of the right side case 56a. Is fixed to the right side plate 55.
Further, the left side case 56b is bent toward the rear side where the end portion thereof approaches the straw chain 31 via the gear case 57, and the pair of bevel gears arranged in the gear case 57 causes the left side of the constantly rotating input shaft 52 to rotate. The shaft end and the right shaft end of the tilt drive shaft 52a are interlockingly connected.

A sprocket 31a for driving the straw chain 31 is fixed to the left shaft end of the tilt drive shaft 52a, and a sprocket 51a and a constant rotation input shaft 5 are connected to the right shaft end of the constant rotation input shaft 51.
Sprockets 52b are fixed to the right side shaft ends of 2, respectively, and both input shafts 51 and 52 are rotated by driving both sprockets 51a and 52a from an intermediate shaft (not shown).

On the other hand, the outlet side plate 53 of the threshing machine 23 has a large opening 59 for discharging straw, and this outlet side plate 53
The transmission case 46 is fixed to the upper side of the discharge port 59 via the connecting bracket 60, and the clutch case 33 is fixed to the lower side via the connection bracket 61. The outlet side plate 53 itself can be reinforced by utilizing the clutch case 33 integrated with the transmission case 54 and the gear case 46 integrated with the transmission case 56, and the rigidity of the outlet side plate 53 can be increased.

In addition, a conventional binding device is generally provided with a sweeper that also serves as a joint unbinder and a bundle ejection spring-out, but in the present invention, the conventional sweeper is deleted, and a knot is tied to the binding string by the building 41. In order to pull the string from the bundling side in order to make a bundle, the feeding force of the feed chain 26 or the straw chain 31 is used, and by eliminating the conventional sweeper, the bundling device can be further downsized, lightweight and It has a feature that it can be constructed at low cost.

[Effect of device]

The present invention relates to a binding device in which a needle 37 is provided on one side of the binding passage K, a knot portion composed of a building 41, a holder 43, etc. is provided on the other side, and a door 36 is provided behind the binding passage K. The needle 37 and the nodule are separately provided in the transmission mechanism of each of them, and the constant rotation input shafts 51 and 52 and the single rotation clutch mechanism 44 and 47 are provided.
It is configured to drive one rotation through the, while the needle 37 side one-rotation clutch mechanism 44 is interlockingly connected to the door 36, while the needle 37 side one-rotation clutch mechanism 44 is interlocked, By providing the interlocking means for actuating the one-rotation clutch mechanism 47, the following effects are achieved.

That is, the one-rotation clutch mechanism 44 controls the connection and disconnection of the power on the needle 37 side, and the one-rotation clutch mechanism 47 controls the connection and disconnection of the power on the knot side. Compared to one that starts and stops the one-rotation transmission mechanism from the needle portion, the knot portion, and the needle portion to the knot portion at once, the starting load and the stop load applied to the one-rotation clutch mechanisms 44 and 47 can be reduced and dispersed.
The impact force can be mitigated to improve the durability of the one-rotation clutch mechanism 44, 47 and the durability of the entire binding device, and the vibration noise at the time of starting and stopping the binding operation of the binding device can be significantly reduced. You can

Also, a one-rotation clutch mechanism on the needle 37 side and the knot side
Even if 44 and 47 are provided separately, since both are interlocked by the interlocking means, the operation timing between the needle 37 side and the knot side can be properly maintained, and good binding is achieved. The performance can be obtained.

Moreover, a gate-type single-rotation transmission mechanism for driving the knotted portion side from the needle 37 side is not required, and a binding device having a compact structure can be provided.

[Brief description of drawings]

1 to 5 show an embodiment of the present invention, FIG. 1 is a side view of a main portion showing a state in which a binding device is provided on a combine, FIG. 2 is a plan view of FIG. 1, and FIG. Is an exploded perspective view of the binding device, FIG. 4 is a power transmission system diagram, FIG. 5A is a vertical sectional side view of a one-rotation clutch mechanism provided on the building side, and FIG. 5B is a perspective view of an operating arm. FIG. 6 shows a conventional example and is a power transmission system diagram of the binding device. 23 ... Thresher, 26 ... Feed chain, 31 ... Straw chain, 33
... Clutch case, 35 ... Binding device, 36 ... Door, 37 ... Needle, 41 ... Bill, 42 ... Holder, 44 ... Needle side one-turn clutch mechanism, 46 ... Gear case, 47 ... Building side one-turn clutch mechanism, 50 … Coupling (Boden wire), 51… Continuous rotation input shaft, 52… Continuous rotation input shaft, 54… Transmission case, 56… Transmission case, C… Combine, K… Binding passage,
H ... Transport passage.

Claims (1)

[Scope of utility model registration request] 1. A binding device in which a needle 37 is provided on one side of a binding passage K, a knot portion composed of a building 41, a holder 43, etc. is provided on the other side, and a door 36 is provided behind the binding passage K. The needle 37 and the knot are specially provided in the transmission mechanism of both of them, the constant rotation input shafts 51 and 52, and the single rotation clutch mechanism 44 and 47.
It is configured to be driven to rotate one rotation via the, while the needle 37 side one-rotation clutch mechanism 44 is interlockingly connected to the door 36, while the needle 37 side one-rotation clutch mechanism 44 is operated in conjunction with the nodal portion. A binding device, characterized in that interlocking means for actuating the one-sided rotating clutch mechanism 47 is provided.